* [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
@ 2014-04-02 13:27 Waiman Long
2014-04-02 13:27 ` [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation Waiman Long
` (22 more replies)
0 siblings, 23 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-02 13:27 UTC (permalink / raw)
To: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, Peter Zijlstra
Cc: linux-arch, x86, linux-kernel, virtualization, xen-devel, kvm,
Paolo Bonzini, Konrad Rzeszutek Wilk, Paul E. McKenney,
Rik van Riel, Linus Torvalds, Raghavendra K T, David Vrabel,
Oleg Nesterov, Gleb Natapov, Aswin Chandramouleeswaran,
Scott J Norton, Chegu Vinod, Waiman Long
N.B. Sorry for the duplicate. This patch series were resent as the
original one was rejected by the vger.kernel.org list server
due to long header. There is no change in content.
v7->v8:
- Remove one unneeded atomic operation from the slowpath, thus
improving performance.
- Simplify some of the codes and add more comments.
- Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
unfair lock.
- Reduce unfair lock slowpath lock stealing frequency depending
on its distance from the queue head.
- Add performance data for IvyBridge-EX CPU.
v6->v7:
- Remove an atomic operation from the 2-task contending code
- Shorten the names of some macros
- Make the queue waiter to attempt to steal lock when unfair lock is
enabled.
- Remove lock holder kick from the PV code and fix a race condition
- Run the unfair lock & PV code on overcommitted KVM guests to collect
performance data.
v5->v6:
- Change the optimized 2-task contending code to make it fairer at the
expense of a bit of performance.
- Add a patch to support unfair queue spinlock for Xen.
- Modify the PV qspinlock code to follow what was done in the PV
ticketlock.
- Add performance data for the unfair lock as well as the PV
support code.
v4->v5:
- Move the optimized 2-task contending code to the generic file to
enable more architectures to use it without code duplication.
- Address some of the style-related comments by PeterZ.
- Allow the use of unfair queue spinlock in a real para-virtualized
execution environment.
- Add para-virtualization support to the qspinlock code by ensuring
that the lock holder and queue head stay alive as much as possible.
v3->v4:
- Remove debugging code and fix a configuration error
- Simplify the qspinlock structure and streamline the code to make it
perform a bit better
- Add an x86 version of asm/qspinlock.h for holding x86 specific
optimization.
- Add an optimized x86 code path for 2 contending tasks to improve
low contention performance.
v2->v3:
- Simplify the code by using numerous mode only without an unfair option.
- Use the latest smp_load_acquire()/smp_store_release() barriers.
- Move the queue spinlock code to kernel/locking.
- Make the use of queue spinlock the default for x86-64 without user
configuration.
- Additional performance tuning.
v1->v2:
- Add some more comments to document what the code does.
- Add a numerous CPU mode to support >= 16K CPUs
- Add a configuration option to allow lock stealing which can further
improve performance in many cases.
- Enable wakeup of queue head CPU at unlock time for non-numerous
CPU mode.
This patch set has 3 different sections:
1) Patches 1-4: Introduces a queue-based spinlock implementation that
can replace the default ticket spinlock without increasing the
size of the spinlock data structure. As a result, critical kernel
data structures that embed spinlock won't increase in size and
break data alignments.
2) Patches 5-6: Enables the use of unfair queue spinlock in a
para-virtualized execution environment. This can resolve some
of the locking related performance issues due to the fact that
the next CPU to get the lock may have been scheduled out for a
period of time.
3) Patches 7-10: Enable qspinlock para-virtualization support
by halting the waiting CPUs after spinning for a certain amount of
time. The unlock code will detect the a sleeping waiter and wake it
up. This is essentially the same logic as the PV ticketlock code.
The queue spinlock has slightly better performance than the ticket
spinlock in uncontended case. Its performance can be much better
with moderate to heavy contention. This patch has the potential of
improving the performance of all the workloads that have moderate to
heavy spinlock contention.
The queue spinlock is especially suitable for NUMA machines with at
least 2 sockets, though noticeable performance benefit probably won't
show up in machines with less than 4 sockets.
The purpose of this patch set is not to solve any particular spinlock
contention problems. Those need to be solved by refactoring the code
to make more efficient use of the lock or finer granularity ones. The
main purpose is to make the lock contention problems more tolerable
until someone can spend the time and effort to fix them.
To illustrate the performance benefit of the queue spinlock, the
ebizzy benchmark was run with the -m option in two different computers:
Test machine ticket-lock queue-lock
------------ ----------- ----------
4-socket 40-core 2316 rec/s 2899 rec/s
Westmere-EX (HT off)
2-socket 12-core 2130 rec/s 2176 rec/s
Westmere-EP (HT on)
Waiman Long (10):
qspinlock: A generic 4-byte queue spinlock implementation
qspinlock, x86: Enable x86-64 to use queue spinlock
qspinlock: More optimized code for smaller NR_CPUS
qspinlock: Optimized code path for 2 contending tasks
pvqspinlock, x86: Allow unfair spinlock in a PV guest
pvqspinlock: Enable lock stealing in queue lock waiters
pvqspinlock, x86: Rename paravirt_ticketlocks_enabled
pvqspinlock, x86: Add qspinlock para-virtualization support
pvqspinlock, x86: Enable qspinlock PV support for KVM
pvqspinlock, x86: Enable qspinlock PV support for XEN
arch/x86/Kconfig | 12 +
arch/x86/include/asm/paravirt.h | 17 +-
arch/x86/include/asm/paravirt_types.h | 16 +
arch/x86/include/asm/pvqspinlock.h | 260 +++++++++
arch/x86/include/asm/qspinlock.h | 191 +++++++
arch/x86/include/asm/spinlock.h | 9 +-
arch/x86/include/asm/spinlock_types.h | 4 +
arch/x86/kernel/Makefile | 1 +
arch/x86/kernel/kvm.c | 113 ++++-
arch/x86/kernel/paravirt-spinlocks.c | 36 ++-
arch/x86/xen/spinlock.c | 121 ++++-
include/asm-generic/qspinlock.h | 126 ++++
include/asm-generic/qspinlock_types.h | 63 ++
kernel/Kconfig.locks | 7 +
kernel/locking/Makefile | 1 +
kernel/locking/qspinlock.c | 1010 +++++++++++++++++++++++++++++++++
16 files changed, 1975 insertions(+), 12 deletions(-)
create mode 100644 arch/x86/include/asm/pvqspinlock.h
create mode 100644 arch/x86/include/asm/qspinlock.h
create mode 100644 include/asm-generic/qspinlock.h
create mode 100644 include/asm-generic/qspinlock_types.h
create mode 100644 kernel/locking/qspinlock.c
^ permalink raw reply [flat|nested] 109+ messages in thread
* [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation
2014-04-02 13:27 [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support Waiman Long
2014-04-02 13:27 ` [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation Waiman Long
@ 2014-04-02 13:27 ` Waiman Long
2014-04-04 13:00 ` Peter Zijlstra
2014-04-04 13:00 ` Peter Zijlstra
2014-04-02 13:27 ` [PATCH v8 02/10] qspinlock, x86: Enable x86-64 to use queue spinlock Waiman Long
` (20 subsequent siblings)
22 siblings, 2 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-02 13:27 UTC (permalink / raw)
To: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, Peter Zijlstra
Cc: linux-arch, x86, linux-kernel, virtualization, xen-devel, kvm,
Paolo Bonzini, Konrad Rzeszutek Wilk, Paul E. McKenney,
Rik van Riel, Linus Torvalds, Raghavendra K T, David Vrabel,
Oleg Nesterov, Gleb Natapov, Aswin Chandramouleeswaran,
Scott J Norton, Chegu Vinod, Waiman Long
This patch introduces a new generic queue spinlock implementation that
can serve as an alternative to the default ticket spinlock. Compared
with the ticket spinlock, this queue spinlock should be almost as fair
as the ticket spinlock. It has about the same speed in single-thread
and it can be much faster in high contention situations especially when
the spinlock is embedded within the data structure to be protected.
Only in light to moderate contention where the average queue depth
is around 1-3 will this queue spinlock be potentially a bit slower
due to the higher slowpath overhead.
This queue spinlock is especially suit to NUMA machines with a large
number of cores as the chance of spinlock contention is much higher
in those machines. The cost of contention is also higher because of
slower inter-node memory traffic.
The idea behind this spinlock implementation is the fact that spinlocks
are acquired with preemption disabled. In other words, the process
will not be migrated to another CPU while it is trying to get a
spinlock. Ignoring interrupt handling, a CPU can only be contending
in one spinlock at any one time. Of course, interrupt handler can try
to acquire one spinlock while the interrupted user process is in the
process of getting another spinlock. By allocating a set of per-cpu
queue nodes and used them to form a waiting queue, we can encode the
queue node address into a much smaller 16-bit size. Together with
the 1-byte lock bit, this queue spinlock implementation will only
need 4 bytes to hold all the information that it needs.
The current queue node address encoding of the 4-byte word is as
follows:
Bits 0-7 : the locked byte
Bits 8-9 : queue node index in the per-cpu array (4 entries)
Bits 10-31: cpu number + 1 (max cpus = 4M -1)
For single-thread performance (no contention), a 256K lock/unlock
loop was run on a 2.4Ghz Westmere x86-64 CPU. The following table
shows the average time (in ns) for a single lock/unlock sequence
(including the looping and timing overhead):
Lock Type Time (ns)
--------- ---------
Ticket spinlock 14.1
Queue spinlock 8.8
So the queue spinlock is much faster than the ticket spinlock, even
though the overhead of locking and unlocking should be pretty small
when there is no contention. The performance advantage is mainly
due to the fact that ticket spinlock does a read-modify-write (add)
instruction in unlock whereas queue spinlock only does a simple write
in unlock which can be much faster in a pipelined CPU.
The AIM7 benchmark was run on a 8-socket 80-core DL980 with Westmere
x86-64 CPUs with XFS filesystem on a ramdisk and HT off to evaluate
the performance impact of this patch on a 3.13 kernel.
+------------+----------+-----------------+---------+
| Kernel | 3.13 JPM | 3.13 with | %Change |
| | | qspinlock patch | |
+------------+----------+-----------------+---------+
| 10-100 users |
+------------+----------+-----------------+---------+
|custom | 357459 | 363109 | +1.58% |
|dbase | 496847 | 498801 | +0.39% |
|disk | 2925312 | 2771387 | -5.26% |
|five_sec | 166612 | 169215 | +1.56% |
|fserver | 382129 | 383279 | +0.30% |
|high_systime| 16356 | 16380 | +0.15% |
|short | 4521978 | 4257363 | -5.85% |
+------------+----------+-----------------+---------+
| 200-1000 users |
+------------+----------+-----------------+---------+
|custom | 449070 | 447711 | -0.30% |
|dbase | 845029 | 853362 | +0.99% |
|disk | 2725249 | 4892907 | +79.54% |
|five_sec | 169410 | 170638 | +0.72% |
|fserver | 489662 | 491828 | +0.44% |
|high_systime| 142823 | 143790 | +0.68% |
|short | 7435288 | 9016171 | +21.26% |
+------------+----------+-----------------+---------+
| 1100-2000 users |
+------------+----------+-----------------+---------+
|custom | 432470 | 432570 | +0.02% |
|dbase | 889289 | 890026 | +0.08% |
|disk | 2565138 | 5008732 | +95.26% |
|five_sec | 169141 | 170034 | +0.53% |
|fserver | 498569 | 500701 | +0.43% |
|high_systime| 229913 | 245866 | +6.94% |
|short | 8496794 | 8281918 | -2.53% |
+------------+----------+-----------------+---------+
The workload with the most gain was the disk workload. Without the
patch, the perf profile at 1500 users looked like:
26.19% reaim [kernel.kallsyms] [k] _raw_spin_lock
|--47.28%-- evict
|--46.87%-- inode_sb_list_add
|--1.24%-- xlog_cil_insert_items
|--0.68%-- __remove_inode_hash
|--0.67%-- inode_wait_for_writeback
--3.26%-- [...]
22.96% swapper [kernel.kallsyms] [k] cpu_idle_loop
5.56% reaim [kernel.kallsyms] [k] mutex_spin_on_owner
4.87% reaim [kernel.kallsyms] [k] update_cfs_rq_blocked_load
2.04% reaim [kernel.kallsyms] [k] mspin_lock
1.30% reaim [kernel.kallsyms] [k] memcpy
1.08% reaim [unknown] [.] 0x0000003c52009447
There was pretty high spinlock contention on the inode_sb_list_lock
and maybe the inode's i_lock.
With the patch, the perf profile at 1500 users became:
26.82% swapper [kernel.kallsyms] [k] cpu_idle_loop
4.66% reaim [kernel.kallsyms] [k] mutex_spin_on_owner
3.97% reaim [kernel.kallsyms] [k] update_cfs_rq_blocked_load
2.40% reaim [kernel.kallsyms] [k] queue_spin_lock_slowpath
|--88.31%-- _raw_spin_lock
| |--36.02%-- inode_sb_list_add
| |--35.09%-- evict
| |--16.89%-- xlog_cil_insert_items
| |--6.30%-- try_to_wake_up
| |--2.20%-- _xfs_buf_find
| |--0.75%-- __remove_inode_hash
| |--0.72%-- __mutex_lock_slowpath
| |--0.53%-- load_balance
|--6.02%-- _raw_spin_lock_irqsave
| |--74.75%-- down_trylock
| |--9.69%-- rcu_check_quiescent_state
| |--7.47%-- down
| |--3.57%-- up
| |--1.67%-- rwsem_wake
| |--1.00%-- remove_wait_queue
| |--0.56%-- pagevec_lru_move_fn
|--5.39%-- _raw_spin_lock_irq
| |--82.05%-- rwsem_down_read_failed
| |--10.48%-- rwsem_down_write_failed
| |--4.24%-- __down
| |--2.74%-- __schedule
--0.28%-- [...]
2.20% reaim [kernel.kallsyms] [k] memcpy
1.84% reaim [unknown] [.] 0x000000000041517b
1.77% reaim [kernel.kallsyms] [k] _raw_spin_lock
|--21.08%-- xlog_cil_insert_items
|--10.14%-- xfs_icsb_modify_counters
|--7.20%-- xfs_iget_cache_hit
|--6.56%-- inode_sb_list_add
|--5.49%-- _xfs_buf_find
|--5.25%-- evict
|--5.03%-- __remove_inode_hash
|--4.64%-- __mutex_lock_slowpath
|--3.78%-- selinux_inode_free_security
|--2.95%-- xfs_inode_is_filestream
|--2.35%-- try_to_wake_up
|--2.07%-- xfs_inode_set_reclaim_tag
|--1.52%-- list_lru_add
|--1.16%-- xfs_inode_clear_eofblocks_tag
:
1.30% reaim [kernel.kallsyms] [k] effective_load
1.27% reaim [kernel.kallsyms] [k] mspin_lock
1.10% reaim [kernel.kallsyms] [k] security_compute_sid
On the ext4 filesystem, the disk workload improved from 416281 JPM
to 899101 JPM (+116%) with the patch. In this case, the contended
spinlock is the mb_cache_spinlock.
Signed-off-by: Waiman Long <Waiman.Long@hp.com>
Acked-by: Rik van Riel <riel@redhat.com>
---
include/asm-generic/qspinlock.h | 122 +++++++++++
include/asm-generic/qspinlock_types.h | 49 +++++
kernel/Kconfig.locks | 7 +
kernel/locking/Makefile | 1 +
kernel/locking/qspinlock.c | 371 +++++++++++++++++++++++++++++++++
5 files changed, 550 insertions(+), 0 deletions(-)
create mode 100644 include/asm-generic/qspinlock.h
create mode 100644 include/asm-generic/qspinlock_types.h
create mode 100644 kernel/locking/qspinlock.c
diff --git a/include/asm-generic/qspinlock.h b/include/asm-generic/qspinlock.h
new file mode 100644
index 0000000..8525931
--- /dev/null
+++ b/include/asm-generic/qspinlock.h
@@ -0,0 +1,122 @@
+/*
+ * Queue spinlock
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * (C) Copyright 2013-2014 Hewlett-Packard Development Company, L.P.
+ *
+ * Authors: Waiman Long <waiman.long@hp.com>
+ */
+#ifndef __ASM_GENERIC_QSPINLOCK_H
+#define __ASM_GENERIC_QSPINLOCK_H
+
+#include <asm-generic/qspinlock_types.h>
+
+/*
+ * External function declarations
+ */
+extern void queue_spin_lock_slowpath(struct qspinlock *lock, int qsval);
+
+/**
+ * queue_spin_is_locked - is the spinlock locked?
+ * @lock: Pointer to queue spinlock structure
+ * Return: 1 if it is locked, 0 otherwise
+ */
+static __always_inline int queue_spin_is_locked(struct qspinlock *lock)
+{
+ return atomic_read(&lock->qlcode) & _QLOCK_LOCK_MASK;
+}
+
+/**
+ * queue_spin_value_unlocked - is the spinlock structure unlocked?
+ * @lock: queue spinlock structure
+ * Return: 1 if it is unlocked, 0 otherwise
+ */
+static __always_inline int queue_spin_value_unlocked(struct qspinlock lock)
+{
+ return !(atomic_read(&lock.qlcode) & _QLOCK_LOCK_MASK);
+}
+
+/**
+ * queue_spin_is_contended - check if the lock is contended
+ * @lock : Pointer to queue spinlock structure
+ * Return: 1 if lock contended, 0 otherwise
+ */
+static __always_inline int queue_spin_is_contended(struct qspinlock *lock)
+{
+ return atomic_read(&lock->qlcode) & ~_QLOCK_LOCK_MASK;
+}
+/**
+ * queue_spin_trylock - try to acquire the queue spinlock
+ * @lock : Pointer to queue spinlock structure
+ * Return: 1 if lock acquired, 0 if failed
+ */
+static __always_inline int queue_spin_trylock(struct qspinlock *lock)
+{
+ if (!atomic_read(&lock->qlcode) &&
+ (atomic_cmpxchg(&lock->qlcode, 0, _QLOCK_LOCKED) == 0))
+ return 1;
+ return 0;
+}
+
+/**
+ * queue_spin_lock - acquire a queue spinlock
+ * @lock: Pointer to queue spinlock structure
+ */
+static __always_inline void queue_spin_lock(struct qspinlock *lock)
+{
+ int qsval;
+
+ /*
+ * To reduce memory access to only once for the cold cache case,
+ * a direct cmpxchg() is performed in the fastpath to optimize the
+ * uncontended case. The contended performance, however, may suffer
+ * a bit because of that.
+ */
+ qsval = atomic_cmpxchg(&lock->qlcode, 0, _QLOCK_LOCKED);
+ if (likely(qsval == 0))
+ return;
+ queue_spin_lock_slowpath(lock, qsval);
+}
+
+#ifndef queue_spin_unlock
+/**
+ * queue_spin_unlock - release a queue spinlock
+ * @lock : Pointer to queue spinlock structure
+ */
+static __always_inline void queue_spin_unlock(struct qspinlock *lock)
+{
+ /*
+ * Use an atomic subtraction to clear the lock bit.
+ */
+ smp_mb__before_atomic_dec();
+ atomic_sub(_QLOCK_LOCKED, &lock->qlcode);
+}
+#endif
+
+/*
+ * Initializier
+ */
+#define __ARCH_SPIN_LOCK_UNLOCKED { ATOMIC_INIT(0) }
+
+/*
+ * Remapping spinlock architecture specific functions to the corresponding
+ * queue spinlock functions.
+ */
+#define arch_spin_is_locked(l) queue_spin_is_locked(l)
+#define arch_spin_is_contended(l) queue_spin_is_contended(l)
+#define arch_spin_value_unlocked(l) queue_spin_value_unlocked(l)
+#define arch_spin_lock(l) queue_spin_lock(l)
+#define arch_spin_trylock(l) queue_spin_trylock(l)
+#define arch_spin_unlock(l) queue_spin_unlock(l)
+#define arch_spin_lock_flags(l, f) queue_spin_lock(l)
+
+#endif /* __ASM_GENERIC_QSPINLOCK_H */
diff --git a/include/asm-generic/qspinlock_types.h b/include/asm-generic/qspinlock_types.h
new file mode 100644
index 0000000..fbfe898
--- /dev/null
+++ b/include/asm-generic/qspinlock_types.h
@@ -0,0 +1,49 @@
+/*
+ * Queue spinlock
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * (C) Copyright 2013-2014 Hewlett-Packard Development Company, L.P.
+ *
+ * Authors: Waiman Long <waiman.long@hp.com>
+ */
+#ifndef __ASM_GENERIC_QSPINLOCK_TYPES_H
+#define __ASM_GENERIC_QSPINLOCK_TYPES_H
+
+/*
+ * Including atomic.h with PARAVIRT on will cause compilation errors because
+ * of recursive header file incluson via paravirt_types.h. A workaround is
+ * to include paravirt_types.h here in this case.
+ */
+#ifdef CONFIG_PARAVIRT
+# include <asm/paravirt_types.h>
+#else
+# include <linux/types.h>
+# include <linux/atomic.h>
+#endif
+
+/*
+ * The queue spinlock data structure - a 32-bit word
+ *
+ * The bits assignment are:
+ * Bit 0 : Set if locked
+ * Bits 1-7 : Not used
+ * Bits 8-31: Queue code
+ */
+typedef struct qspinlock {
+ atomic_t qlcode; /* Lock + queue code */
+} arch_spinlock_t;
+
+#define _QCODE_OFFSET 8
+#define _QLOCK_LOCKED 1U
+#define _QLOCK_LOCK_MASK 0xff
+
+#endif /* __ASM_GENERIC_QSPINLOCK_TYPES_H */
diff --git a/kernel/Kconfig.locks b/kernel/Kconfig.locks
index d2b32ac..f185584 100644
--- a/kernel/Kconfig.locks
+++ b/kernel/Kconfig.locks
@@ -223,3 +223,10 @@ endif
config MUTEX_SPIN_ON_OWNER
def_bool y
depends on SMP && !DEBUG_MUTEXES
+
+config ARCH_USE_QUEUE_SPINLOCK
+ bool
+
+config QUEUE_SPINLOCK
+ def_bool y if ARCH_USE_QUEUE_SPINLOCK
+ depends on SMP && !PARAVIRT_SPINLOCKS
diff --git a/kernel/locking/Makefile b/kernel/locking/Makefile
index baab8e5..e3b3293 100644
--- a/kernel/locking/Makefile
+++ b/kernel/locking/Makefile
@@ -15,6 +15,7 @@ obj-$(CONFIG_LOCKDEP) += lockdep_proc.o
endif
obj-$(CONFIG_SMP) += spinlock.o
obj-$(CONFIG_PROVE_LOCKING) += spinlock.o
+obj-$(CONFIG_QUEUE_SPINLOCK) += qspinlock.o
obj-$(CONFIG_RT_MUTEXES) += rtmutex.o
obj-$(CONFIG_DEBUG_RT_MUTEXES) += rtmutex-debug.o
obj-$(CONFIG_RT_MUTEX_TESTER) += rtmutex-tester.o
diff --git a/kernel/locking/qspinlock.c b/kernel/locking/qspinlock.c
new file mode 100644
index 0000000..92ed540
--- /dev/null
+++ b/kernel/locking/qspinlock.c
@@ -0,0 +1,371 @@
+/*
+ * Queue spinlock
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * (C) Copyright 2013-2014 Hewlett-Packard Development Company, L.P.
+ *
+ * Authors: Waiman Long <waiman.long@hp.com>
+ */
+#include <linux/smp.h>
+#include <linux/bug.h>
+#include <linux/cpumask.h>
+#include <linux/percpu.h>
+#include <linux/hardirq.h>
+#include <linux/mutex.h>
+#include <linux/spinlock.h>
+
+/*
+ * The basic principle of a queue-based spinlock can best be understood
+ * by studying a classic queue-based spinlock implementation called the
+ * MCS lock. The paper below provides a good description for this kind
+ * of lock.
+ *
+ * http://www.cise.ufl.edu/tr/DOC/REP-1992-71.pdf
+ *
+ * This queue spinlock implementation is based on the MCS lock with twists
+ * to make it fit the following constraints:
+ * 1. A max spinlock size of 4 bytes
+ * 2. Good fastpath performance
+ * 3. No change in the locking APIs
+ *
+ * The queue spinlock fastpath is as simple as it can get, all the heavy
+ * lifting is done in the lock slowpath. The main idea behind this queue
+ * spinlock implementation is to keep the spinlock size at 4 bytes while
+ * at the same time implement a queue structure to queue up the waiting
+ * lock spinners.
+ *
+ * Since preemption is disabled before getting the lock, a given CPU will
+ * only need to use one queue node structure in a non-interrupt context.
+ * A percpu queue node structure will be allocated for this purpose and the
+ * cpu number will be put into the queue spinlock structure to indicate the
+ * tail of the queue.
+ *
+ * To handle spinlock acquisition at interrupt context (softirq or hardirq),
+ * the queue node structure is actually an array for supporting nested spin
+ * locking operations in interrupt handlers. If all the entries in the
+ * array are used up, a warning message will be printed (as that shouldn't
+ * happen in normal circumstances) and the lock spinner will fall back to
+ * busy spinning instead of waiting in a queue.
+ */
+
+/*
+ * The 24-bit queue node code is divided into the following 2 fields:
+ * Bits 0-1 : queue node index (4 nodes)
+ * Bits 2-23: CPU number + 1 (4M - 1 CPUs)
+ *
+ * A queue node code of 0 indicates that no one is waiting for the lock.
+ * As the value 0 cannot be used as a valid CPU number. We need to add
+ * 1 to it before putting it into the queue code.
+ */
+#define MAX_QNODES 4
+#ifndef _QCODE_VAL_OFFSET
+#define _QCODE_VAL_OFFSET _QCODE_OFFSET
+#endif
+
+/*
+ * Function exit status
+ */
+enum exitval {
+ NORMAL_EXIT = 0,
+ NOTIFY_NEXT , /* Notify the next waiting node CPU */
+ RELEASE_NODE /* Release current node directly */
+};
+
+/*
+ * The queue node structure
+ *
+ * This structure is essentially the same as the mcs_spinlock structure
+ * in mcs_spinlock.h file. It is retained for future extension where new
+ * fields may be added.
+ */
+struct qnode {
+ u32 qhead; /* Queue head flag */
+ struct qnode *next; /* Next queue node addr */
+};
+
+struct qnode_set {
+ struct qnode nodes[MAX_QNODES];
+ int node_idx; /* Current node to use */
+};
+
+/*
+ * Per-CPU queue node structures
+ */
+static DEFINE_PER_CPU_ALIGNED(struct qnode_set, qnset) = { { { 0 } }, 0 };
+
+/*
+ ************************************************************************
+ * Inline functions used by the queue_spin_lock_slowpath() function *
+ * that may get superseded by a more optimized version. *
+ ************************************************************************
+ */
+
+#ifndef __queue_spin_trylock
+/**
+ * __queue_spin_trylock - try to acquire the lock by setting the lock bit
+ * @lock: Pointer to queue spinlock structure
+ * Return: 1 if lock bit set successfully, 0 if failed
+ *
+ * This is an unfair version of the trylock which should only be called
+ * by a caller who is entitled to acquire the lock.
+ */
+static __always_inline int __queue_spin_trylock(struct qspinlock *lock)
+{
+ int qlcode = atomic_read(&lock->qlcode);
+
+ if (!(qlcode & _QLOCK_LOCKED) && (atomic_cmpxchg(&lock->qlcode,
+ qlcode, qlcode|_QLOCK_LOCKED) == qlcode))
+ return 1;
+ return 0;
+}
+#endif /* __queue_spin_trylock */
+
+#ifndef qsval_to_qcode
+/**
+ * qsval_to_qcode - Convert a queue spinlock value to a queue code
+ * @qsval : Queue spinlock value
+ * Return : The corresponding queue code value
+ */
+static inline u32
+qsval_to_qcode(int qsval)
+{
+ return (u32)(qsval & ~_QLOCK_LOCK_MASK);
+}
+#endif /* qsval_to_qcode */
+
+#ifndef queue_spin_trylock_and_clr_qcode
+/**
+ * queue_spin_trylock_and_clr_qcode - Try to lock & clear qcode simultaneously
+ * @lock : Pointer to queue spinlock structure
+ * @qcode: The supposedly current qcode value
+ * Return: true if successful, false otherwise
+ */
+static inline int
+queue_spin_trylock_and_clr_qcode(struct qspinlock *lock, u32 qcode)
+{
+ return atomic_cmpxchg(&lock->qlcode, qcode, _QLOCK_LOCKED) == qcode;
+}
+#endif /* queue_spin_trylock_and_clr_qcode */
+
+#ifndef queue_encode_qcode
+/**
+ * queue_encode_qcode - Encode the CPU number & node index into a qnode code
+ * @cpu_nr: CPU number
+ * @qn_idx: Queue node index
+ * Return : A qnode code that can be saved into the qspinlock structure
+ */
+static inline u32 queue_encode_qcode(u32 cpu_nr, u8 qn_idx)
+{
+ return ((cpu_nr + 1) << (_QCODE_VAL_OFFSET + 2)) |
+ (qn_idx << _QCODE_VAL_OFFSET);
+}
+#endif /* queue_encode_qcode */
+
+#ifndef queue_code_xchg
+/**
+ * queue_code_xchg - exchange a queue code value
+ * @lock : Pointer to queue spinlock structure
+ * @ocode: Old queue code in the lock [OUT]
+ * @ncode: New queue code to be exchanged
+ * Return: An enum exitval value
+ */
+static inline enum exitval
+queue_code_xchg(struct qspinlock *lock, u32 *ocode, u32 ncode)
+{
+ ncode |= _QLOCK_LOCKED; /* Set lock bit */
+
+ /*
+ * Exchange current copy of the queue node code
+ */
+ *ocode = atomic_xchg(&lock->qlcode, ncode);
+
+ if (likely(*ocode & _QLOCK_LOCKED)) {
+ *ocode &= ~_QLOCK_LOCKED; /* Clear the lock bit */
+ return NORMAL_EXIT;
+ }
+ /*
+ * It is possible that we may accidentally steal the lock during
+ * the unlock-lock transition. If this is the case, we need to either
+ * release it if not the head of the queue or get the lock and be
+ * done with it.
+ */
+ if (*ocode == 0) {
+ u32 qcode;
+
+ /*
+ * Got the lock since it is at the head of the queue
+ * Now try to atomically clear the queue code.
+ */
+ qcode = atomic_cmpxchg(&lock->qlcode, ncode, _QLOCK_LOCKED);
+ /*
+ * The cmpxchg fails only if one or more tasks are added to
+ * the queue. In this case, NOTIFY_NEXT is returned instead
+ * of RELEASE_NODE.
+ */
+ return (qcode != ncode) ? NOTIFY_NEXT : RELEASE_NODE;
+ }
+ /*
+ * Accidentally steal the lock, release the lock and
+ * let the queue head get it.
+ */
+ queue_spin_unlock(lock);
+ return NORMAL_EXIT;
+}
+#endif /* queue_code_xchg */
+
+/*
+ ************************************************************************
+ * Other inline functions needed by the queue_spin_lock_slowpath() *
+ * function. *
+ ************************************************************************
+ */
+
+/**
+ * xlate_qcode - translate the queue code into the queue node address
+ * @qcode: Queue code to be translated
+ * Return: The corresponding queue node address
+ */
+static inline struct qnode *xlate_qcode(u32 qcode)
+{
+ u32 cpu_nr = (qcode >> (_QCODE_VAL_OFFSET + 2)) - 1;
+ u8 qn_idx = (qcode >> _QCODE_VAL_OFFSET) & 3;
+
+ return per_cpu_ptr(&qnset.nodes[qn_idx], cpu_nr);
+}
+
+/**
+ * get_qnode - Get a queue node address as well as the queue code
+ * @cpu : CPU number
+ * @qcode : Pointer to queue code value [out]
+ * Return : queue node address & queue code in qcode
+ */
+static inline struct qnode *get_qnode(int cpu, u32 *qcode)
+{
+ struct qnode_set *qset = this_cpu_ptr(&qnset);
+ int qn_idx = qset->node_idx++;
+
+ /*
+ * It should never happen that all the queue nodes are being used.
+ */
+ BUG_ON(qn_idx >= MAX_QNODES);
+ *qcode = queue_encode_qcode(cpu, qn_idx);
+ return qset->nodes + qn_idx;
+}
+
+/**
+ * put_qnode - Return a queue node to the pool
+ */
+static inline void put_qnode(void)
+{
+ this_cpu_dec(qnset.node_idx);
+}
+
+/**
+ * queue_spin_lock_slowpath - acquire the queue spinlock
+ * @lock : Pointer to queue spinlock structure
+ * @qsval: Current value of the queue spinlock 32-bit word
+ */
+void queue_spin_lock_slowpath(struct qspinlock *lock, int qsval)
+{
+ unsigned int cpu_nr;
+ struct qnode *node, *next;
+ u32 prev_qcode, my_qcode;
+ enum exitval exitval;
+
+ /*
+ * Get the queue node
+ */
+ cpu_nr = smp_processor_id();
+ node = get_qnode(cpu_nr, &my_qcode);
+
+ /*
+ * Initialize the queue node
+ */
+ node->qhead = false;
+ node->next = NULL;
+
+ /*
+ * The lock may be available at this point, try again if no task was
+ * waiting in the queue.
+ */
+ if (!(qsval >> _QCODE_OFFSET) && queue_spin_trylock(lock))
+ goto release_node;
+
+ /*
+ * Exchange current copy of the queue node code
+ */
+ exitval = queue_code_xchg(lock, &prev_qcode, my_qcode);
+ if (unlikely(exitval == NOTIFY_NEXT))
+ goto notify_next;
+ else if (unlikely(exitval == RELEASE_NODE))
+ goto release_node;
+
+ if (prev_qcode) {
+ /*
+ * Not at the queue head, get the address of the previous node
+ * and set up the "next" fields of the that node.
+ */
+ struct qnode *prev = xlate_qcode(prev_qcode);
+
+ ACCESS_ONCE(prev->next) = node;
+ /*
+ * Wait until the queue head flag is on
+ */
+ do {
+ arch_mutex_cpu_relax();
+ } while (!ACCESS_ONCE(node->qhead));
+ }
+
+ /*
+ * At the head of the wait queue now
+ */
+ for (;; arch_mutex_cpu_relax()) {
+ qsval = atomic_read(&lock->qlcode);
+ next = ACCESS_ONCE(node->next);
+ if (qsval & _QLOCK_LOCK_MASK)
+ continue; /* Lock not available yet */
+
+ if (likely(qsval_to_qcode(qsval) != my_qcode)) {
+ /*
+ * There are additional lock waiters in the queue.
+ */
+ if (unlikely(!__queue_spin_trylock(lock)))
+ continue; /* Trylock fails! */
+ if (likely(next))
+ goto set_qhead;
+ else
+ goto notify_next;
+ /*
+ * The queue head is the only lock waiter in the queue.
+ * Get the lock & clear the queue code simultaneously.
+ */
+ } else if (queue_spin_trylock_and_clr_qcode(lock, my_qcode)) {
+ goto release_node;
+ }
+ }
+
+notify_next:
+ /*
+ * Wait, if needed, until the next one in queue set up the next field
+ */
+ while (!(next = ACCESS_ONCE(node->next)))
+ arch_mutex_cpu_relax();
+set_qhead:
+ /*
+ * The next one in queue is now at the head
+ */
+ ACCESS_ONCE(next->qhead) = true;
+
+release_node:
+ put_qnode();
+}
+EXPORT_SYMBOL(queue_spin_lock_slowpath);
--
1.7.1
^ permalink raw reply related [flat|nested] 109+ messages in thread
* [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation
2014-04-02 13:27 [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support Waiman Long
@ 2014-04-02 13:27 ` Waiman Long
2014-04-02 13:27 ` Waiman Long
` (21 subsequent siblings)
22 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-02 13:27 UTC (permalink / raw)
To: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, Peter Zijlstra
Cc: linux-arch, Waiman Long, Raghavendra K T, Gleb Natapov, kvm,
Aswin Chandramouleeswaran, Scott J Norton, x86, Paolo Bonzini,
linux-kernel, virtualization, Chegu Vinod, David Vrabel,
Oleg Nesterov, xen-devel, Paul E. McKenney, Linus Torvalds
This patch introduces a new generic queue spinlock implementation that
can serve as an alternative to the default ticket spinlock. Compared
with the ticket spinlock, this queue spinlock should be almost as fair
as the ticket spinlock. It has about the same speed in single-thread
and it can be much faster in high contention situations especially when
the spinlock is embedded within the data structure to be protected.
Only in light to moderate contention where the average queue depth
is around 1-3 will this queue spinlock be potentially a bit slower
due to the higher slowpath overhead.
This queue spinlock is especially suit to NUMA machines with a large
number of cores as the chance of spinlock contention is much higher
in those machines. The cost of contention is also higher because of
slower inter-node memory traffic.
The idea behind this spinlock implementation is the fact that spinlocks
are acquired with preemption disabled. In other words, the process
will not be migrated to another CPU while it is trying to get a
spinlock. Ignoring interrupt handling, a CPU can only be contending
in one spinlock at any one time. Of course, interrupt handler can try
to acquire one spinlock while the interrupted user process is in the
process of getting another spinlock. By allocating a set of per-cpu
queue nodes and used them to form a waiting queue, we can encode the
queue node address into a much smaller 16-bit size. Together with
the 1-byte lock bit, this queue spinlock implementation will only
need 4 bytes to hold all the information that it needs.
The current queue node address encoding of the 4-byte word is as
follows:
Bits 0-7 : the locked byte
Bits 8-9 : queue node index in the per-cpu array (4 entries)
Bits 10-31: cpu number + 1 (max cpus = 4M -1)
For single-thread performance (no contention), a 256K lock/unlock
loop was run on a 2.4Ghz Westmere x86-64 CPU. The following table
shows the average time (in ns) for a single lock/unlock sequence
(including the looping and timing overhead):
Lock Type Time (ns)
--------- ---------
Ticket spinlock 14.1
Queue spinlock 8.8
So the queue spinlock is much faster than the ticket spinlock, even
though the overhead of locking and unlocking should be pretty small
when there is no contention. The performance advantage is mainly
due to the fact that ticket spinlock does a read-modify-write (add)
instruction in unlock whereas queue spinlock only does a simple write
in unlock which can be much faster in a pipelined CPU.
The AIM7 benchmark was run on a 8-socket 80-core DL980 with Westmere
x86-64 CPUs with XFS filesystem on a ramdisk and HT off to evaluate
the performance impact of this patch on a 3.13 kernel.
+------------+----------+-----------------+---------+
| Kernel | 3.13 JPM | 3.13 with | %Change |
| | | qspinlock patch | |
+------------+----------+-----------------+---------+
| 10-100 users |
+------------+----------+-----------------+---------+
|custom | 357459 | 363109 | +1.58% |
|dbase | 496847 | 498801 | +0.39% |
|disk | 2925312 | 2771387 | -5.26% |
|five_sec | 166612 | 169215 | +1.56% |
|fserver | 382129 | 383279 | +0.30% |
|high_systime| 16356 | 16380 | +0.15% |
|short | 4521978 | 4257363 | -5.85% |
+------------+----------+-----------------+---------+
| 200-1000 users |
+------------+----------+-----------------+---------+
|custom | 449070 | 447711 | -0.30% |
|dbase | 845029 | 853362 | +0.99% |
|disk | 2725249 | 4892907 | +79.54% |
|five_sec | 169410 | 170638 | +0.72% |
|fserver | 489662 | 491828 | +0.44% |
|high_systime| 142823 | 143790 | +0.68% |
|short | 7435288 | 9016171 | +21.26% |
+------------+----------+-----------------+---------+
| 1100-2000 users |
+------------+----------+-----------------+---------+
|custom | 432470 | 432570 | +0.02% |
|dbase | 889289 | 890026 | +0.08% |
|disk | 2565138 | 5008732 | +95.26% |
|five_sec | 169141 | 170034 | +0.53% |
|fserver | 498569 | 500701 | +0.43% |
|high_systime| 229913 | 245866 | +6.94% |
|short | 8496794 | 8281918 | -2.53% |
+------------+----------+-----------------+---------+
The workload with the most gain was the disk workload. Without the
patch, the perf profile at 1500 users looked like:
26.19% reaim [kernel.kallsyms] [k] _raw_spin_lock
|--47.28%-- evict
|--46.87%-- inode_sb_list_add
|--1.24%-- xlog_cil_insert_items
|--0.68%-- __remove_inode_hash
|--0.67%-- inode_wait_for_writeback
--3.26%-- [...]
22.96% swapper [kernel.kallsyms] [k] cpu_idle_loop
5.56% reaim [kernel.kallsyms] [k] mutex_spin_on_owner
4.87% reaim [kernel.kallsyms] [k] update_cfs_rq_blocked_load
2.04% reaim [kernel.kallsyms] [k] mspin_lock
1.30% reaim [kernel.kallsyms] [k] memcpy
1.08% reaim [unknown] [.] 0x0000003c52009447
There was pretty high spinlock contention on the inode_sb_list_lock
and maybe the inode's i_lock.
With the patch, the perf profile at 1500 users became:
26.82% swapper [kernel.kallsyms] [k] cpu_idle_loop
4.66% reaim [kernel.kallsyms] [k] mutex_spin_on_owner
3.97% reaim [kernel.kallsyms] [k] update_cfs_rq_blocked_load
2.40% reaim [kernel.kallsyms] [k] queue_spin_lock_slowpath
|--88.31%-- _raw_spin_lock
| |--36.02%-- inode_sb_list_add
| |--35.09%-- evict
| |--16.89%-- xlog_cil_insert_items
| |--6.30%-- try_to_wake_up
| |--2.20%-- _xfs_buf_find
| |--0.75%-- __remove_inode_hash
| |--0.72%-- __mutex_lock_slowpath
| |--0.53%-- load_balance
|--6.02%-- _raw_spin_lock_irqsave
| |--74.75%-- down_trylock
| |--9.69%-- rcu_check_quiescent_state
| |--7.47%-- down
| |--3.57%-- up
| |--1.67%-- rwsem_wake
| |--1.00%-- remove_wait_queue
| |--0.56%-- pagevec_lru_move_fn
|--5.39%-- _raw_spin_lock_irq
| |--82.05%-- rwsem_down_read_failed
| |--10.48%-- rwsem_down_write_failed
| |--4.24%-- __down
| |--2.74%-- __schedule
--0.28%-- [...]
2.20% reaim [kernel.kallsyms] [k] memcpy
1.84% reaim [unknown] [.] 0x000000000041517b
1.77% reaim [kernel.kallsyms] [k] _raw_spin_lock
|--21.08%-- xlog_cil_insert_items
|--10.14%-- xfs_icsb_modify_counters
|--7.20%-- xfs_iget_cache_hit
|--6.56%-- inode_sb_list_add
|--5.49%-- _xfs_buf_find
|--5.25%-- evict
|--5.03%-- __remove_inode_hash
|--4.64%-- __mutex_lock_slowpath
|--3.78%-- selinux_inode_free_security
|--2.95%-- xfs_inode_is_filestream
|--2.35%-- try_to_wake_up
|--2.07%-- xfs_inode_set_reclaim_tag
|--1.52%-- list_lru_add
|--1.16%-- xfs_inode_clear_eofblocks_tag
:
1.30% reaim [kernel.kallsyms] [k] effective_load
1.27% reaim [kernel.kallsyms] [k] mspin_lock
1.10% reaim [kernel.kallsyms] [k] security_compute_sid
On the ext4 filesystem, the disk workload improved from 416281 JPM
to 899101 JPM (+116%) with the patch. In this case, the contended
spinlock is the mb_cache_spinlock.
Signed-off-by: Waiman Long <Waiman.Long@hp.com>
Acked-by: Rik van Riel <riel@redhat.com>
---
include/asm-generic/qspinlock.h | 122 +++++++++++
include/asm-generic/qspinlock_types.h | 49 +++++
kernel/Kconfig.locks | 7 +
kernel/locking/Makefile | 1 +
kernel/locking/qspinlock.c | 371 +++++++++++++++++++++++++++++++++
5 files changed, 550 insertions(+), 0 deletions(-)
create mode 100644 include/asm-generic/qspinlock.h
create mode 100644 include/asm-generic/qspinlock_types.h
create mode 100644 kernel/locking/qspinlock.c
diff --git a/include/asm-generic/qspinlock.h b/include/asm-generic/qspinlock.h
new file mode 100644
index 0000000..8525931
--- /dev/null
+++ b/include/asm-generic/qspinlock.h
@@ -0,0 +1,122 @@
+/*
+ * Queue spinlock
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * (C) Copyright 2013-2014 Hewlett-Packard Development Company, L.P.
+ *
+ * Authors: Waiman Long <waiman.long@hp.com>
+ */
+#ifndef __ASM_GENERIC_QSPINLOCK_H
+#define __ASM_GENERIC_QSPINLOCK_H
+
+#include <asm-generic/qspinlock_types.h>
+
+/*
+ * External function declarations
+ */
+extern void queue_spin_lock_slowpath(struct qspinlock *lock, int qsval);
+
+/**
+ * queue_spin_is_locked - is the spinlock locked?
+ * @lock: Pointer to queue spinlock structure
+ * Return: 1 if it is locked, 0 otherwise
+ */
+static __always_inline int queue_spin_is_locked(struct qspinlock *lock)
+{
+ return atomic_read(&lock->qlcode) & _QLOCK_LOCK_MASK;
+}
+
+/**
+ * queue_spin_value_unlocked - is the spinlock structure unlocked?
+ * @lock: queue spinlock structure
+ * Return: 1 if it is unlocked, 0 otherwise
+ */
+static __always_inline int queue_spin_value_unlocked(struct qspinlock lock)
+{
+ return !(atomic_read(&lock.qlcode) & _QLOCK_LOCK_MASK);
+}
+
+/**
+ * queue_spin_is_contended - check if the lock is contended
+ * @lock : Pointer to queue spinlock structure
+ * Return: 1 if lock contended, 0 otherwise
+ */
+static __always_inline int queue_spin_is_contended(struct qspinlock *lock)
+{
+ return atomic_read(&lock->qlcode) & ~_QLOCK_LOCK_MASK;
+}
+/**
+ * queue_spin_trylock - try to acquire the queue spinlock
+ * @lock : Pointer to queue spinlock structure
+ * Return: 1 if lock acquired, 0 if failed
+ */
+static __always_inline int queue_spin_trylock(struct qspinlock *lock)
+{
+ if (!atomic_read(&lock->qlcode) &&
+ (atomic_cmpxchg(&lock->qlcode, 0, _QLOCK_LOCKED) == 0))
+ return 1;
+ return 0;
+}
+
+/**
+ * queue_spin_lock - acquire a queue spinlock
+ * @lock: Pointer to queue spinlock structure
+ */
+static __always_inline void queue_spin_lock(struct qspinlock *lock)
+{
+ int qsval;
+
+ /*
+ * To reduce memory access to only once for the cold cache case,
+ * a direct cmpxchg() is performed in the fastpath to optimize the
+ * uncontended case. The contended performance, however, may suffer
+ * a bit because of that.
+ */
+ qsval = atomic_cmpxchg(&lock->qlcode, 0, _QLOCK_LOCKED);
+ if (likely(qsval == 0))
+ return;
+ queue_spin_lock_slowpath(lock, qsval);
+}
+
+#ifndef queue_spin_unlock
+/**
+ * queue_spin_unlock - release a queue spinlock
+ * @lock : Pointer to queue spinlock structure
+ */
+static __always_inline void queue_spin_unlock(struct qspinlock *lock)
+{
+ /*
+ * Use an atomic subtraction to clear the lock bit.
+ */
+ smp_mb__before_atomic_dec();
+ atomic_sub(_QLOCK_LOCKED, &lock->qlcode);
+}
+#endif
+
+/*
+ * Initializier
+ */
+#define __ARCH_SPIN_LOCK_UNLOCKED { ATOMIC_INIT(0) }
+
+/*
+ * Remapping spinlock architecture specific functions to the corresponding
+ * queue spinlock functions.
+ */
+#define arch_spin_is_locked(l) queue_spin_is_locked(l)
+#define arch_spin_is_contended(l) queue_spin_is_contended(l)
+#define arch_spin_value_unlocked(l) queue_spin_value_unlocked(l)
+#define arch_spin_lock(l) queue_spin_lock(l)
+#define arch_spin_trylock(l) queue_spin_trylock(l)
+#define arch_spin_unlock(l) queue_spin_unlock(l)
+#define arch_spin_lock_flags(l, f) queue_spin_lock(l)
+
+#endif /* __ASM_GENERIC_QSPINLOCK_H */
diff --git a/include/asm-generic/qspinlock_types.h b/include/asm-generic/qspinlock_types.h
new file mode 100644
index 0000000..fbfe898
--- /dev/null
+++ b/include/asm-generic/qspinlock_types.h
@@ -0,0 +1,49 @@
+/*
+ * Queue spinlock
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * (C) Copyright 2013-2014 Hewlett-Packard Development Company, L.P.
+ *
+ * Authors: Waiman Long <waiman.long@hp.com>
+ */
+#ifndef __ASM_GENERIC_QSPINLOCK_TYPES_H
+#define __ASM_GENERIC_QSPINLOCK_TYPES_H
+
+/*
+ * Including atomic.h with PARAVIRT on will cause compilation errors because
+ * of recursive header file incluson via paravirt_types.h. A workaround is
+ * to include paravirt_types.h here in this case.
+ */
+#ifdef CONFIG_PARAVIRT
+# include <asm/paravirt_types.h>
+#else
+# include <linux/types.h>
+# include <linux/atomic.h>
+#endif
+
+/*
+ * The queue spinlock data structure - a 32-bit word
+ *
+ * The bits assignment are:
+ * Bit 0 : Set if locked
+ * Bits 1-7 : Not used
+ * Bits 8-31: Queue code
+ */
+typedef struct qspinlock {
+ atomic_t qlcode; /* Lock + queue code */
+} arch_spinlock_t;
+
+#define _QCODE_OFFSET 8
+#define _QLOCK_LOCKED 1U
+#define _QLOCK_LOCK_MASK 0xff
+
+#endif /* __ASM_GENERIC_QSPINLOCK_TYPES_H */
diff --git a/kernel/Kconfig.locks b/kernel/Kconfig.locks
index d2b32ac..f185584 100644
--- a/kernel/Kconfig.locks
+++ b/kernel/Kconfig.locks
@@ -223,3 +223,10 @@ endif
config MUTEX_SPIN_ON_OWNER
def_bool y
depends on SMP && !DEBUG_MUTEXES
+
+config ARCH_USE_QUEUE_SPINLOCK
+ bool
+
+config QUEUE_SPINLOCK
+ def_bool y if ARCH_USE_QUEUE_SPINLOCK
+ depends on SMP && !PARAVIRT_SPINLOCKS
diff --git a/kernel/locking/Makefile b/kernel/locking/Makefile
index baab8e5..e3b3293 100644
--- a/kernel/locking/Makefile
+++ b/kernel/locking/Makefile
@@ -15,6 +15,7 @@ obj-$(CONFIG_LOCKDEP) += lockdep_proc.o
endif
obj-$(CONFIG_SMP) += spinlock.o
obj-$(CONFIG_PROVE_LOCKING) += spinlock.o
+obj-$(CONFIG_QUEUE_SPINLOCK) += qspinlock.o
obj-$(CONFIG_RT_MUTEXES) += rtmutex.o
obj-$(CONFIG_DEBUG_RT_MUTEXES) += rtmutex-debug.o
obj-$(CONFIG_RT_MUTEX_TESTER) += rtmutex-tester.o
diff --git a/kernel/locking/qspinlock.c b/kernel/locking/qspinlock.c
new file mode 100644
index 0000000..92ed540
--- /dev/null
+++ b/kernel/locking/qspinlock.c
@@ -0,0 +1,371 @@
+/*
+ * Queue spinlock
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * (C) Copyright 2013-2014 Hewlett-Packard Development Company, L.P.
+ *
+ * Authors: Waiman Long <waiman.long@hp.com>
+ */
+#include <linux/smp.h>
+#include <linux/bug.h>
+#include <linux/cpumask.h>
+#include <linux/percpu.h>
+#include <linux/hardirq.h>
+#include <linux/mutex.h>
+#include <linux/spinlock.h>
+
+/*
+ * The basic principle of a queue-based spinlock can best be understood
+ * by studying a classic queue-based spinlock implementation called the
+ * MCS lock. The paper below provides a good description for this kind
+ * of lock.
+ *
+ * http://www.cise.ufl.edu/tr/DOC/REP-1992-71.pdf
+ *
+ * This queue spinlock implementation is based on the MCS lock with twists
+ * to make it fit the following constraints:
+ * 1. A max spinlock size of 4 bytes
+ * 2. Good fastpath performance
+ * 3. No change in the locking APIs
+ *
+ * The queue spinlock fastpath is as simple as it can get, all the heavy
+ * lifting is done in the lock slowpath. The main idea behind this queue
+ * spinlock implementation is to keep the spinlock size at 4 bytes while
+ * at the same time implement a queue structure to queue up the waiting
+ * lock spinners.
+ *
+ * Since preemption is disabled before getting the lock, a given CPU will
+ * only need to use one queue node structure in a non-interrupt context.
+ * A percpu queue node structure will be allocated for this purpose and the
+ * cpu number will be put into the queue spinlock structure to indicate the
+ * tail of the queue.
+ *
+ * To handle spinlock acquisition at interrupt context (softirq or hardirq),
+ * the queue node structure is actually an array for supporting nested spin
+ * locking operations in interrupt handlers. If all the entries in the
+ * array are used up, a warning message will be printed (as that shouldn't
+ * happen in normal circumstances) and the lock spinner will fall back to
+ * busy spinning instead of waiting in a queue.
+ */
+
+/*
+ * The 24-bit queue node code is divided into the following 2 fields:
+ * Bits 0-1 : queue node index (4 nodes)
+ * Bits 2-23: CPU number + 1 (4M - 1 CPUs)
+ *
+ * A queue node code of 0 indicates that no one is waiting for the lock.
+ * As the value 0 cannot be used as a valid CPU number. We need to add
+ * 1 to it before putting it into the queue code.
+ */
+#define MAX_QNODES 4
+#ifndef _QCODE_VAL_OFFSET
+#define _QCODE_VAL_OFFSET _QCODE_OFFSET
+#endif
+
+/*
+ * Function exit status
+ */
+enum exitval {
+ NORMAL_EXIT = 0,
+ NOTIFY_NEXT , /* Notify the next waiting node CPU */
+ RELEASE_NODE /* Release current node directly */
+};
+
+/*
+ * The queue node structure
+ *
+ * This structure is essentially the same as the mcs_spinlock structure
+ * in mcs_spinlock.h file. It is retained for future extension where new
+ * fields may be added.
+ */
+struct qnode {
+ u32 qhead; /* Queue head flag */
+ struct qnode *next; /* Next queue node addr */
+};
+
+struct qnode_set {
+ struct qnode nodes[MAX_QNODES];
+ int node_idx; /* Current node to use */
+};
+
+/*
+ * Per-CPU queue node structures
+ */
+static DEFINE_PER_CPU_ALIGNED(struct qnode_set, qnset) = { { { 0 } }, 0 };
+
+/*
+ ************************************************************************
+ * Inline functions used by the queue_spin_lock_slowpath() function *
+ * that may get superseded by a more optimized version. *
+ ************************************************************************
+ */
+
+#ifndef __queue_spin_trylock
+/**
+ * __queue_spin_trylock - try to acquire the lock by setting the lock bit
+ * @lock: Pointer to queue spinlock structure
+ * Return: 1 if lock bit set successfully, 0 if failed
+ *
+ * This is an unfair version of the trylock which should only be called
+ * by a caller who is entitled to acquire the lock.
+ */
+static __always_inline int __queue_spin_trylock(struct qspinlock *lock)
+{
+ int qlcode = atomic_read(&lock->qlcode);
+
+ if (!(qlcode & _QLOCK_LOCKED) && (atomic_cmpxchg(&lock->qlcode,
+ qlcode, qlcode|_QLOCK_LOCKED) == qlcode))
+ return 1;
+ return 0;
+}
+#endif /* __queue_spin_trylock */
+
+#ifndef qsval_to_qcode
+/**
+ * qsval_to_qcode - Convert a queue spinlock value to a queue code
+ * @qsval : Queue spinlock value
+ * Return : The corresponding queue code value
+ */
+static inline u32
+qsval_to_qcode(int qsval)
+{
+ return (u32)(qsval & ~_QLOCK_LOCK_MASK);
+}
+#endif /* qsval_to_qcode */
+
+#ifndef queue_spin_trylock_and_clr_qcode
+/**
+ * queue_spin_trylock_and_clr_qcode - Try to lock & clear qcode simultaneously
+ * @lock : Pointer to queue spinlock structure
+ * @qcode: The supposedly current qcode value
+ * Return: true if successful, false otherwise
+ */
+static inline int
+queue_spin_trylock_and_clr_qcode(struct qspinlock *lock, u32 qcode)
+{
+ return atomic_cmpxchg(&lock->qlcode, qcode, _QLOCK_LOCKED) == qcode;
+}
+#endif /* queue_spin_trylock_and_clr_qcode */
+
+#ifndef queue_encode_qcode
+/**
+ * queue_encode_qcode - Encode the CPU number & node index into a qnode code
+ * @cpu_nr: CPU number
+ * @qn_idx: Queue node index
+ * Return : A qnode code that can be saved into the qspinlock structure
+ */
+static inline u32 queue_encode_qcode(u32 cpu_nr, u8 qn_idx)
+{
+ return ((cpu_nr + 1) << (_QCODE_VAL_OFFSET + 2)) |
+ (qn_idx << _QCODE_VAL_OFFSET);
+}
+#endif /* queue_encode_qcode */
+
+#ifndef queue_code_xchg
+/**
+ * queue_code_xchg - exchange a queue code value
+ * @lock : Pointer to queue spinlock structure
+ * @ocode: Old queue code in the lock [OUT]
+ * @ncode: New queue code to be exchanged
+ * Return: An enum exitval value
+ */
+static inline enum exitval
+queue_code_xchg(struct qspinlock *lock, u32 *ocode, u32 ncode)
+{
+ ncode |= _QLOCK_LOCKED; /* Set lock bit */
+
+ /*
+ * Exchange current copy of the queue node code
+ */
+ *ocode = atomic_xchg(&lock->qlcode, ncode);
+
+ if (likely(*ocode & _QLOCK_LOCKED)) {
+ *ocode &= ~_QLOCK_LOCKED; /* Clear the lock bit */
+ return NORMAL_EXIT;
+ }
+ /*
+ * It is possible that we may accidentally steal the lock during
+ * the unlock-lock transition. If this is the case, we need to either
+ * release it if not the head of the queue or get the lock and be
+ * done with it.
+ */
+ if (*ocode == 0) {
+ u32 qcode;
+
+ /*
+ * Got the lock since it is at the head of the queue
+ * Now try to atomically clear the queue code.
+ */
+ qcode = atomic_cmpxchg(&lock->qlcode, ncode, _QLOCK_LOCKED);
+ /*
+ * The cmpxchg fails only if one or more tasks are added to
+ * the queue. In this case, NOTIFY_NEXT is returned instead
+ * of RELEASE_NODE.
+ */
+ return (qcode != ncode) ? NOTIFY_NEXT : RELEASE_NODE;
+ }
+ /*
+ * Accidentally steal the lock, release the lock and
+ * let the queue head get it.
+ */
+ queue_spin_unlock(lock);
+ return NORMAL_EXIT;
+}
+#endif /* queue_code_xchg */
+
+/*
+ ************************************************************************
+ * Other inline functions needed by the queue_spin_lock_slowpath() *
+ * function. *
+ ************************************************************************
+ */
+
+/**
+ * xlate_qcode - translate the queue code into the queue node address
+ * @qcode: Queue code to be translated
+ * Return: The corresponding queue node address
+ */
+static inline struct qnode *xlate_qcode(u32 qcode)
+{
+ u32 cpu_nr = (qcode >> (_QCODE_VAL_OFFSET + 2)) - 1;
+ u8 qn_idx = (qcode >> _QCODE_VAL_OFFSET) & 3;
+
+ return per_cpu_ptr(&qnset.nodes[qn_idx], cpu_nr);
+}
+
+/**
+ * get_qnode - Get a queue node address as well as the queue code
+ * @cpu : CPU number
+ * @qcode : Pointer to queue code value [out]
+ * Return : queue node address & queue code in qcode
+ */
+static inline struct qnode *get_qnode(int cpu, u32 *qcode)
+{
+ struct qnode_set *qset = this_cpu_ptr(&qnset);
+ int qn_idx = qset->node_idx++;
+
+ /*
+ * It should never happen that all the queue nodes are being used.
+ */
+ BUG_ON(qn_idx >= MAX_QNODES);
+ *qcode = queue_encode_qcode(cpu, qn_idx);
+ return qset->nodes + qn_idx;
+}
+
+/**
+ * put_qnode - Return a queue node to the pool
+ */
+static inline void put_qnode(void)
+{
+ this_cpu_dec(qnset.node_idx);
+}
+
+/**
+ * queue_spin_lock_slowpath - acquire the queue spinlock
+ * @lock : Pointer to queue spinlock structure
+ * @qsval: Current value of the queue spinlock 32-bit word
+ */
+void queue_spin_lock_slowpath(struct qspinlock *lock, int qsval)
+{
+ unsigned int cpu_nr;
+ struct qnode *node, *next;
+ u32 prev_qcode, my_qcode;
+ enum exitval exitval;
+
+ /*
+ * Get the queue node
+ */
+ cpu_nr = smp_processor_id();
+ node = get_qnode(cpu_nr, &my_qcode);
+
+ /*
+ * Initialize the queue node
+ */
+ node->qhead = false;
+ node->next = NULL;
+
+ /*
+ * The lock may be available at this point, try again if no task was
+ * waiting in the queue.
+ */
+ if (!(qsval >> _QCODE_OFFSET) && queue_spin_trylock(lock))
+ goto release_node;
+
+ /*
+ * Exchange current copy of the queue node code
+ */
+ exitval = queue_code_xchg(lock, &prev_qcode, my_qcode);
+ if (unlikely(exitval == NOTIFY_NEXT))
+ goto notify_next;
+ else if (unlikely(exitval == RELEASE_NODE))
+ goto release_node;
+
+ if (prev_qcode) {
+ /*
+ * Not at the queue head, get the address of the previous node
+ * and set up the "next" fields of the that node.
+ */
+ struct qnode *prev = xlate_qcode(prev_qcode);
+
+ ACCESS_ONCE(prev->next) = node;
+ /*
+ * Wait until the queue head flag is on
+ */
+ do {
+ arch_mutex_cpu_relax();
+ } while (!ACCESS_ONCE(node->qhead));
+ }
+
+ /*
+ * At the head of the wait queue now
+ */
+ for (;; arch_mutex_cpu_relax()) {
+ qsval = atomic_read(&lock->qlcode);
+ next = ACCESS_ONCE(node->next);
+ if (qsval & _QLOCK_LOCK_MASK)
+ continue; /* Lock not available yet */
+
+ if (likely(qsval_to_qcode(qsval) != my_qcode)) {
+ /*
+ * There are additional lock waiters in the queue.
+ */
+ if (unlikely(!__queue_spin_trylock(lock)))
+ continue; /* Trylock fails! */
+ if (likely(next))
+ goto set_qhead;
+ else
+ goto notify_next;
+ /*
+ * The queue head is the only lock waiter in the queue.
+ * Get the lock & clear the queue code simultaneously.
+ */
+ } else if (queue_spin_trylock_and_clr_qcode(lock, my_qcode)) {
+ goto release_node;
+ }
+ }
+
+notify_next:
+ /*
+ * Wait, if needed, until the next one in queue set up the next field
+ */
+ while (!(next = ACCESS_ONCE(node->next)))
+ arch_mutex_cpu_relax();
+set_qhead:
+ /*
+ * The next one in queue is now at the head
+ */
+ ACCESS_ONCE(next->qhead) = true;
+
+release_node:
+ put_qnode();
+}
+EXPORT_SYMBOL(queue_spin_lock_slowpath);
--
1.7.1
^ permalink raw reply related [flat|nested] 109+ messages in thread
* [PATCH v8 02/10] qspinlock, x86: Enable x86-64 to use queue spinlock
2014-04-02 13:27 [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support Waiman Long
2014-04-02 13:27 ` [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation Waiman Long
2014-04-02 13:27 ` Waiman Long
@ 2014-04-02 13:27 ` Waiman Long
2014-04-02 13:27 ` Waiman Long
` (19 subsequent siblings)
22 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-02 13:27 UTC (permalink / raw)
To: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, Peter Zijlstra
Cc: linux-arch, x86, linux-kernel, virtualization, xen-devel, kvm,
Paolo Bonzini, Konrad Rzeszutek Wilk, Paul E. McKenney,
Rik van Riel, Linus Torvalds, Raghavendra K T, David Vrabel,
Oleg Nesterov, Gleb Natapov, Aswin Chandramouleeswaran,
Scott J Norton, Chegu Vinod, Waiman Long
This patch makes the necessary changes at the x86 architecture
specific layer to enable the use of queue spinlock for x86-64. As
x86-32 machines are typically not multi-socket. The benefit of queue
spinlock may not be apparent. So queue spinlock is not enabled.
Currently, there is some incompatibilities between the para-virtualized
spinlock code (which hard-codes the use of ticket spinlock) and the
queue spinlock. Therefore, the use of queue spinlock is disabled when
the para-virtualized spinlock is enabled.
The arch/x86/include/asm/qspinlock.h header file includes some x86
specific optimization which will make the queue spinlock code perform
better than the generic implementation.
Signed-off-by: Waiman Long <Waiman.Long@hp.com>
Acked-by: Rik van Riel <riel@redhat.com>
---
arch/x86/Kconfig | 1 +
arch/x86/include/asm/qspinlock.h | 41 +++++++++++++++++++++++++++++++++
arch/x86/include/asm/spinlock.h | 5 ++++
arch/x86/include/asm/spinlock_types.h | 4 +++
4 files changed, 51 insertions(+), 0 deletions(-)
create mode 100644 arch/x86/include/asm/qspinlock.h
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 0af5250..de573f9 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -17,6 +17,7 @@ config X86_64
depends on 64BIT
select X86_DEV_DMA_OPS
select ARCH_USE_CMPXCHG_LOCKREF
+ select ARCH_USE_QUEUE_SPINLOCK
### Arch settings
config X86
diff --git a/arch/x86/include/asm/qspinlock.h b/arch/x86/include/asm/qspinlock.h
new file mode 100644
index 0000000..44cefee
--- /dev/null
+++ b/arch/x86/include/asm/qspinlock.h
@@ -0,0 +1,41 @@
+#ifndef _ASM_X86_QSPINLOCK_H
+#define _ASM_X86_QSPINLOCK_H
+
+#include <asm-generic/qspinlock_types.h>
+
+#if !defined(CONFIG_X86_OOSTORE) && !defined(CONFIG_X86_PPRO_FENCE)
+
+#define _ARCH_SUPPORTS_ATOMIC_8_16_BITS_OPS
+
+/*
+ * x86-64 specific queue spinlock union structure
+ */
+union arch_qspinlock {
+ struct qspinlock slock;
+ u8 lock; /* Lock bit */
+};
+
+#define queue_spin_unlock queue_spin_unlock
+/**
+ * queue_spin_unlock - release a queue spinlock
+ * @lock : Pointer to queue spinlock structure
+ *
+ * No special memory barrier other than a compiler one is needed for the
+ * x86 architecture. A compiler barrier is added at the end to make sure
+ * that the clearing the lock bit is done ASAP without artificial delay
+ * due to compiler optimization.
+ */
+static inline void queue_spin_unlock(struct qspinlock *lock)
+{
+ union arch_qspinlock *qlock = (union arch_qspinlock *)lock;
+
+ barrier();
+ ACCESS_ONCE(qlock->lock) = 0;
+ barrier();
+}
+
+#endif /* !CONFIG_X86_OOSTORE && !CONFIG_X86_PPRO_FENCE */
+
+#include <asm-generic/qspinlock.h>
+
+#endif /* _ASM_X86_QSPINLOCK_H */
diff --git a/arch/x86/include/asm/spinlock.h b/arch/x86/include/asm/spinlock.h
index 0f62f54..958d20f 100644
--- a/arch/x86/include/asm/spinlock.h
+++ b/arch/x86/include/asm/spinlock.h
@@ -42,6 +42,10 @@
extern struct static_key paravirt_ticketlocks_enabled;
static __always_inline bool static_key_false(struct static_key *key);
+#ifdef CONFIG_QUEUE_SPINLOCK
+#include <asm/qspinlock.h>
+#else
+
#ifdef CONFIG_PARAVIRT_SPINLOCKS
static inline void __ticket_enter_slowpath(arch_spinlock_t *lock)
@@ -180,6 +184,7 @@ static __always_inline void arch_spin_lock_flags(arch_spinlock_t *lock,
{
arch_spin_lock(lock);
}
+#endif /* CONFIG_QUEUE_SPINLOCK */
static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
{
diff --git a/arch/x86/include/asm/spinlock_types.h b/arch/x86/include/asm/spinlock_types.h
index 4f1bea1..7960268 100644
--- a/arch/x86/include/asm/spinlock_types.h
+++ b/arch/x86/include/asm/spinlock_types.h
@@ -23,6 +23,9 @@ typedef u32 __ticketpair_t;
#define TICKET_SHIFT (sizeof(__ticket_t) * 8)
+#ifdef CONFIG_QUEUE_SPINLOCK
+#include <asm-generic/qspinlock_types.h>
+#else
typedef struct arch_spinlock {
union {
__ticketpair_t head_tail;
@@ -33,6 +36,7 @@ typedef struct arch_spinlock {
} arch_spinlock_t;
#define __ARCH_SPIN_LOCK_UNLOCKED { { 0 } }
+#endif /* CONFIG_QUEUE_SPINLOCK */
#include <asm/rwlock.h>
--
1.7.1
^ permalink raw reply related [flat|nested] 109+ messages in thread
* [PATCH v8 02/10] qspinlock, x86: Enable x86-64 to use queue spinlock
2014-04-02 13:27 [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support Waiman Long
` (2 preceding siblings ...)
2014-04-02 13:27 ` [PATCH v8 02/10] qspinlock, x86: Enable x86-64 to use queue spinlock Waiman Long
@ 2014-04-02 13:27 ` Waiman Long
2014-04-02 13:27 ` [PATCH v8 03/10] qspinlock: More optimized code for smaller NR_CPUS Waiman Long
` (18 subsequent siblings)
22 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-02 13:27 UTC (permalink / raw)
To: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, Peter Zijlstra
Cc: linux-arch, Waiman Long, Raghavendra K T, Gleb Natapov, kvm,
Aswin Chandramouleeswaran, Scott J Norton, x86, Paolo Bonzini,
linux-kernel, virtualization, Chegu Vinod, David Vrabel,
Oleg Nesterov, xen-devel, Paul E. McKenney, Linus Torvalds
This patch makes the necessary changes at the x86 architecture
specific layer to enable the use of queue spinlock for x86-64. As
x86-32 machines are typically not multi-socket. The benefit of queue
spinlock may not be apparent. So queue spinlock is not enabled.
Currently, there is some incompatibilities between the para-virtualized
spinlock code (which hard-codes the use of ticket spinlock) and the
queue spinlock. Therefore, the use of queue spinlock is disabled when
the para-virtualized spinlock is enabled.
The arch/x86/include/asm/qspinlock.h header file includes some x86
specific optimization which will make the queue spinlock code perform
better than the generic implementation.
Signed-off-by: Waiman Long <Waiman.Long@hp.com>
Acked-by: Rik van Riel <riel@redhat.com>
---
arch/x86/Kconfig | 1 +
arch/x86/include/asm/qspinlock.h | 41 +++++++++++++++++++++++++++++++++
arch/x86/include/asm/spinlock.h | 5 ++++
arch/x86/include/asm/spinlock_types.h | 4 +++
4 files changed, 51 insertions(+), 0 deletions(-)
create mode 100644 arch/x86/include/asm/qspinlock.h
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 0af5250..de573f9 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -17,6 +17,7 @@ config X86_64
depends on 64BIT
select X86_DEV_DMA_OPS
select ARCH_USE_CMPXCHG_LOCKREF
+ select ARCH_USE_QUEUE_SPINLOCK
### Arch settings
config X86
diff --git a/arch/x86/include/asm/qspinlock.h b/arch/x86/include/asm/qspinlock.h
new file mode 100644
index 0000000..44cefee
--- /dev/null
+++ b/arch/x86/include/asm/qspinlock.h
@@ -0,0 +1,41 @@
+#ifndef _ASM_X86_QSPINLOCK_H
+#define _ASM_X86_QSPINLOCK_H
+
+#include <asm-generic/qspinlock_types.h>
+
+#if !defined(CONFIG_X86_OOSTORE) && !defined(CONFIG_X86_PPRO_FENCE)
+
+#define _ARCH_SUPPORTS_ATOMIC_8_16_BITS_OPS
+
+/*
+ * x86-64 specific queue spinlock union structure
+ */
+union arch_qspinlock {
+ struct qspinlock slock;
+ u8 lock; /* Lock bit */
+};
+
+#define queue_spin_unlock queue_spin_unlock
+/**
+ * queue_spin_unlock - release a queue spinlock
+ * @lock : Pointer to queue spinlock structure
+ *
+ * No special memory barrier other than a compiler one is needed for the
+ * x86 architecture. A compiler barrier is added at the end to make sure
+ * that the clearing the lock bit is done ASAP without artificial delay
+ * due to compiler optimization.
+ */
+static inline void queue_spin_unlock(struct qspinlock *lock)
+{
+ union arch_qspinlock *qlock = (union arch_qspinlock *)lock;
+
+ barrier();
+ ACCESS_ONCE(qlock->lock) = 0;
+ barrier();
+}
+
+#endif /* !CONFIG_X86_OOSTORE && !CONFIG_X86_PPRO_FENCE */
+
+#include <asm-generic/qspinlock.h>
+
+#endif /* _ASM_X86_QSPINLOCK_H */
diff --git a/arch/x86/include/asm/spinlock.h b/arch/x86/include/asm/spinlock.h
index 0f62f54..958d20f 100644
--- a/arch/x86/include/asm/spinlock.h
+++ b/arch/x86/include/asm/spinlock.h
@@ -42,6 +42,10 @@
extern struct static_key paravirt_ticketlocks_enabled;
static __always_inline bool static_key_false(struct static_key *key);
+#ifdef CONFIG_QUEUE_SPINLOCK
+#include <asm/qspinlock.h>
+#else
+
#ifdef CONFIG_PARAVIRT_SPINLOCKS
static inline void __ticket_enter_slowpath(arch_spinlock_t *lock)
@@ -180,6 +184,7 @@ static __always_inline void arch_spin_lock_flags(arch_spinlock_t *lock,
{
arch_spin_lock(lock);
}
+#endif /* CONFIG_QUEUE_SPINLOCK */
static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
{
diff --git a/arch/x86/include/asm/spinlock_types.h b/arch/x86/include/asm/spinlock_types.h
index 4f1bea1..7960268 100644
--- a/arch/x86/include/asm/spinlock_types.h
+++ b/arch/x86/include/asm/spinlock_types.h
@@ -23,6 +23,9 @@ typedef u32 __ticketpair_t;
#define TICKET_SHIFT (sizeof(__ticket_t) * 8)
+#ifdef CONFIG_QUEUE_SPINLOCK
+#include <asm-generic/qspinlock_types.h>
+#else
typedef struct arch_spinlock {
union {
__ticketpair_t head_tail;
@@ -33,6 +36,7 @@ typedef struct arch_spinlock {
} arch_spinlock_t;
#define __ARCH_SPIN_LOCK_UNLOCKED { { 0 } }
+#endif /* CONFIG_QUEUE_SPINLOCK */
#include <asm/rwlock.h>
--
1.7.1
^ permalink raw reply related [flat|nested] 109+ messages in thread
* [PATCH v8 03/10] qspinlock: More optimized code for smaller NR_CPUS
2014-04-02 13:27 [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support Waiman Long
` (3 preceding siblings ...)
2014-04-02 13:27 ` Waiman Long
@ 2014-04-02 13:27 ` Waiman Long
2014-04-02 13:27 ` Waiman Long
` (17 subsequent siblings)
22 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-02 13:27 UTC (permalink / raw)
To: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, Peter Zijlstra
Cc: linux-arch, x86, linux-kernel, virtualization, xen-devel, kvm,
Paolo Bonzini, Konrad Rzeszutek Wilk, Paul E. McKenney,
Rik van Riel, Linus Torvalds, Raghavendra K T, David Vrabel,
Oleg Nesterov, Gleb Natapov, Aswin Chandramouleeswaran,
Scott J Norton, Chegu Vinod, Waiman Long
For architectures that support atomic operations on smaller 8 or
16 bits data types. It is possible to simplify the code and produce
slightly better optimized code at the expense of smaller number of
supported CPUs.
The qspinlock code can support up to a maximum of 4M-1 CPUs. With
less than 16K CPUs, it is possible to squeeze the queue code into a
2-byte short word which can be accessed directly as a 16-bit short
data type. This enables the simplification of the queue code exchange
portion of the slowpath code.
This patch introduces a new macro _ARCH_SUPPORTS_ATOMIC_8_16_BITS_OPS
which can now be defined in an architecture specific qspinlock.h header
file to indicate its support for smaller atomic operation data types.
This macro triggers the replacement of some of the generic functions
by more optimized versions.
Signed-off-by: Waiman Long <Waiman.Long@hp.com>
---
arch/x86/include/asm/qspinlock.h | 34 +++++++++++-
include/asm-generic/qspinlock.h | 8 ++-
include/asm-generic/qspinlock_types.h | 20 ++++++-
kernel/locking/qspinlock.c | 95 +++++++++++++++++++++++++++++++++
4 files changed, 151 insertions(+), 6 deletions(-)
diff --git a/arch/x86/include/asm/qspinlock.h b/arch/x86/include/asm/qspinlock.h
index 44cefee..f058b91 100644
--- a/arch/x86/include/asm/qspinlock.h
+++ b/arch/x86/include/asm/qspinlock.h
@@ -8,11 +8,23 @@
#define _ARCH_SUPPORTS_ATOMIC_8_16_BITS_OPS
/*
+ * As the qcode will be accessed as a 16-bit word, no offset is needed
+ */
+#define _QCODE_VAL_OFFSET 0
+
+/*
* x86-64 specific queue spinlock union structure
+ * Besides the slock and lock fields, the other fields are only
+ * valid with less than 16K CPUs.
*/
union arch_qspinlock {
struct qspinlock slock;
- u8 lock; /* Lock bit */
+ struct {
+ u8 lock; /* Lock bit */
+ u8 reserved;
+ u16 qcode; /* Queue code */
+ };
+ u32 qlcode; /* Complete lock word */
};
#define queue_spin_unlock queue_spin_unlock
@@ -34,6 +46,26 @@ static inline void queue_spin_unlock(struct qspinlock *lock)
barrier();
}
+#ifdef _QCODE_SHORT
+#define __queue_spin_trylock __queue_spin_trylock
+/**
+ * __queue_spin_trylock - acquire the lock by setting the lock bit
+ * @lock: Pointer to queue spinlock structure
+ * Return: Always return 1
+ *
+ * This routine should only be called when the caller is the only one
+ * entitled to acquire the lock. No lock stealing is allowed.
+ */
+static __always_inline int __queue_spin_trylock(struct qspinlock *lock)
+{
+ union arch_qspinlock *qlock = (union arch_qspinlock *)lock;
+
+ barrier();
+ ACCESS_ONCE(qlock->lock) = _QLOCK_LOCKED;
+ barrier();
+ return 1;
+}
+#endif /* _QCODE_SHORT */
#endif /* !CONFIG_X86_OOSTORE && !CONFIG_X86_PPRO_FENCE */
#include <asm-generic/qspinlock.h>
diff --git a/include/asm-generic/qspinlock.h b/include/asm-generic/qspinlock.h
index 8525931..f47d19e 100644
--- a/include/asm-generic/qspinlock.h
+++ b/include/asm-generic/qspinlock.h
@@ -32,17 +32,21 @@ extern void queue_spin_lock_slowpath(struct qspinlock *lock, int qsval);
*/
static __always_inline int queue_spin_is_locked(struct qspinlock *lock)
{
- return atomic_read(&lock->qlcode) & _QLOCK_LOCK_MASK;
+ return atomic_read(&lock->qlcode);
}
/**
* queue_spin_value_unlocked - is the spinlock structure unlocked?
* @lock: queue spinlock structure
* Return: 1 if it is unlocked, 0 otherwise
+ *
+ * N.B. Whenever there are tasks waiting for the lock, it is considered
+ * locked wrt the lockref code to avoid lock stealing by the lockref
+ * code and change things underneath the lock.
*/
static __always_inline int queue_spin_value_unlocked(struct qspinlock lock)
{
- return !(atomic_read(&lock.qlcode) & _QLOCK_LOCK_MASK);
+ return !atomic_read(&lock.qlcode);
}
/**
diff --git a/include/asm-generic/qspinlock_types.h b/include/asm-generic/qspinlock_types.h
index fbfe898..5547aa7 100644
--- a/include/asm-generic/qspinlock_types.h
+++ b/include/asm-generic/qspinlock_types.h
@@ -33,17 +33,31 @@
/*
* The queue spinlock data structure - a 32-bit word
*
- * The bits assignment are:
+ * For NR_CPUS >= 16K, the bits assignment are:
* Bit 0 : Set if locked
* Bits 1-7 : Not used
* Bits 8-31: Queue code
+ *
+ * For NR_CPUS < 16K, the bits assignment are:
+ * Bit 0 : Set if locked
+ * Bits 1-7 : Not used
+ * Bits 8-15: Reserved for architecture specific optimization
+ * Bits 16-31: Queue code
*/
typedef struct qspinlock {
atomic_t qlcode; /* Lock + queue code */
} arch_spinlock_t;
-#define _QCODE_OFFSET 8
+#if CONFIG_NR_CPUS >= (1 << 14)
+# define _QCODE_LONG /* 24-bit queue code */
+# define _QCODE_OFFSET 8
+# define _QLOCK_LOCK_MASK 0xff
+#else
+# define _QCODE_SHORT /* 16-bit queue code */
+# define _QCODE_OFFSET 16
+# define _QLOCK_LOCK_MASK 0xffff
+#endif
+
#define _QLOCK_LOCKED 1U
-#define _QLOCK_LOCK_MASK 0xff
#endif /* __ASM_GENERIC_QSPINLOCK_TYPES_H */
diff --git a/kernel/locking/qspinlock.c b/kernel/locking/qspinlock.c
index 92ed540..45c68a4 100644
--- a/kernel/locking/qspinlock.c
+++ b/kernel/locking/qspinlock.c
@@ -62,6 +62,10 @@
* Bits 0-1 : queue node index (4 nodes)
* Bits 2-23: CPU number + 1 (4M - 1 CPUs)
*
+ * The 16-bit queue node code is divided into the following 2 fields:
+ * Bits 0-1 : queue node index (4 nodes)
+ * Bits 2-15: CPU number + 1 (16K - 1 CPUs)
+ *
* A queue node code of 0 indicates that no one is waiting for the lock.
* As the value 0 cannot be used as a valid CPU number. We need to add
* 1 to it before putting it into the queue code.
@@ -104,6 +108,97 @@ static DEFINE_PER_CPU_ALIGNED(struct qnode_set, qnset) = { { { 0 } }, 0 };
/*
************************************************************************
+ * The following optimized codes are for architectures that support: *
+ * 1) Atomic byte and short data write *
+ * 2) Byte and short data exchange and compare-exchange instructions *
+ * *
+ * For those architectures, their asm/qspinlock.h header file should *
+ * define the followings in order to use the optimized codes. *
+ * 1) The _ARCH_SUPPORTS_ATOMIC_8_16_BITS_OPS macro *
+ * 2) A "union arch_qspinlock" structure that include the individual *
+ * fields of the qspinlock structure, including: *
+ * o slock - the qspinlock structure *
+ * o lock - the lock byte *
+ * o qcode - the queue node code *
+ * o qlcode - the 32-bit qspinlock word *
+ * *
+ ************************************************************************
+ */
+#ifdef _ARCH_SUPPORTS_ATOMIC_8_16_BITS_OPS
+#ifdef _QCODE_SHORT
+/*
+ * With less than 16K CPUs, the following optimizations are possible with
+ * architectures that allows atomic 8/16 bit operations:
+ * 1) The 16-bit queue code can be accessed or modified directly as a
+ * 16-bit short value without disturbing the first 2 bytes.
+ */
+#define queue_encode_qcode(cpu, idx) (((cpu) + 1) << 2 | (idx))
+
+#define queue_code_xchg queue_code_xchg
+/**
+ * queue_code_xchg - exchange a queue code value
+ * @lock : Pointer to queue spinlock structure
+ * @ocode: Old queue code in the lock [OUT]
+ * @ncode: New queue code to be exchanged
+ * Return: NORMAL_EXIT is always returned
+ */
+static inline enum exitval
+queue_code_xchg(struct qspinlock *lock, u32 *ocode, u32 ncode)
+{
+ union arch_qspinlock *qlock = (union arch_qspinlock *)lock;
+
+ *ocode = xchg(&qlock->qcode, (u16)ncode);
+ return NORMAL_EXIT;
+}
+
+#define queue_spin_trylock_and_clr_qcode queue_spin_trylock_and_clr_qcode
+/**
+ * queue_spin_trylock_and_clr_qcode - Try to lock & clear qcode simultaneously
+ * @lock : Pointer to queue spinlock structure
+ * @qcode: The supposedly current qcode value
+ * Return: true if successful, false otherwise
+ */
+static inline int
+queue_spin_trylock_and_clr_qcode(struct qspinlock *lock, u32 qcode)
+{
+ qcode <<= _QCODE_OFFSET;
+ return atomic_cmpxchg(&lock->qlcode, qcode, _QLOCK_LOCKED) == qcode;
+}
+
+#define qsval_to_qcode qsval_to_qcode
+/**
+ * qsval_to_qcode - Convert a queue spinlock value to a queue code
+ * @qsval : Queue spinlock value
+ * Return : The corresponding queue code value
+ */
+static inline u32
+qsval_to_qcode(int qsval)
+{
+ return (u32)(qsval >> _QCODE_OFFSET);
+}
+#endif /* _QCODE_SHORT */
+
+#ifndef __queue_spin_trylock
+#define __queue_spin_trylock __queue_spin_trylock
+/**
+ * __queue_spin_trylock - try to acquire the lock by setting the lock bit
+ * @lock: Pointer to queue spinlock structure
+ * Return: 1 if lock bit set successfully, 0 if failed
+ *
+ * This is an unfair version of the trylock which should only be called
+ * by a caller who is entitled to acquire the lock.
+ */
+static __always_inline int __queue_spin_trylock(struct qspinlock *lock)
+{
+ union arch_qspinlock *qlock = (union arch_qspinlock *)lock;
+
+ return cmpxchg(&qlock->lock, 0, _QLOCK_LOCKED) == 0;
+}
+#endif
+#endif /* _ARCH_SUPPORTS_ATOMIC_8_16_BITS_OPS */
+
+/*
+ ************************************************************************
* Inline functions used by the queue_spin_lock_slowpath() function *
* that may get superseded by a more optimized version. *
************************************************************************
--
1.7.1
^ permalink raw reply related [flat|nested] 109+ messages in thread
* [PATCH v8 03/10] qspinlock: More optimized code for smaller NR_CPUS
2014-04-02 13:27 [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support Waiman Long
` (4 preceding siblings ...)
2014-04-02 13:27 ` [PATCH v8 03/10] qspinlock: More optimized code for smaller NR_CPUS Waiman Long
@ 2014-04-02 13:27 ` Waiman Long
2014-04-02 13:27 ` [PATCH v8 04/10] qspinlock: Optimized code path for 2 contending tasks Waiman Long
` (16 subsequent siblings)
22 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-02 13:27 UTC (permalink / raw)
To: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, Peter Zijlstra
Cc: linux-arch, Waiman Long, Raghavendra K T, Gleb Natapov, kvm,
Aswin Chandramouleeswaran, Scott J Norton, x86, Paolo Bonzini,
linux-kernel, virtualization, Chegu Vinod, David Vrabel,
Oleg Nesterov, xen-devel, Paul E. McKenney, Linus Torvalds
For architectures that support atomic operations on smaller 8 or
16 bits data types. It is possible to simplify the code and produce
slightly better optimized code at the expense of smaller number of
supported CPUs.
The qspinlock code can support up to a maximum of 4M-1 CPUs. With
less than 16K CPUs, it is possible to squeeze the queue code into a
2-byte short word which can be accessed directly as a 16-bit short
data type. This enables the simplification of the queue code exchange
portion of the slowpath code.
This patch introduces a new macro _ARCH_SUPPORTS_ATOMIC_8_16_BITS_OPS
which can now be defined in an architecture specific qspinlock.h header
file to indicate its support for smaller atomic operation data types.
This macro triggers the replacement of some of the generic functions
by more optimized versions.
Signed-off-by: Waiman Long <Waiman.Long@hp.com>
---
arch/x86/include/asm/qspinlock.h | 34 +++++++++++-
include/asm-generic/qspinlock.h | 8 ++-
include/asm-generic/qspinlock_types.h | 20 ++++++-
kernel/locking/qspinlock.c | 95 +++++++++++++++++++++++++++++++++
4 files changed, 151 insertions(+), 6 deletions(-)
diff --git a/arch/x86/include/asm/qspinlock.h b/arch/x86/include/asm/qspinlock.h
index 44cefee..f058b91 100644
--- a/arch/x86/include/asm/qspinlock.h
+++ b/arch/x86/include/asm/qspinlock.h
@@ -8,11 +8,23 @@
#define _ARCH_SUPPORTS_ATOMIC_8_16_BITS_OPS
/*
+ * As the qcode will be accessed as a 16-bit word, no offset is needed
+ */
+#define _QCODE_VAL_OFFSET 0
+
+/*
* x86-64 specific queue spinlock union structure
+ * Besides the slock and lock fields, the other fields are only
+ * valid with less than 16K CPUs.
*/
union arch_qspinlock {
struct qspinlock slock;
- u8 lock; /* Lock bit */
+ struct {
+ u8 lock; /* Lock bit */
+ u8 reserved;
+ u16 qcode; /* Queue code */
+ };
+ u32 qlcode; /* Complete lock word */
};
#define queue_spin_unlock queue_spin_unlock
@@ -34,6 +46,26 @@ static inline void queue_spin_unlock(struct qspinlock *lock)
barrier();
}
+#ifdef _QCODE_SHORT
+#define __queue_spin_trylock __queue_spin_trylock
+/**
+ * __queue_spin_trylock - acquire the lock by setting the lock bit
+ * @lock: Pointer to queue spinlock structure
+ * Return: Always return 1
+ *
+ * This routine should only be called when the caller is the only one
+ * entitled to acquire the lock. No lock stealing is allowed.
+ */
+static __always_inline int __queue_spin_trylock(struct qspinlock *lock)
+{
+ union arch_qspinlock *qlock = (union arch_qspinlock *)lock;
+
+ barrier();
+ ACCESS_ONCE(qlock->lock) = _QLOCK_LOCKED;
+ barrier();
+ return 1;
+}
+#endif /* _QCODE_SHORT */
#endif /* !CONFIG_X86_OOSTORE && !CONFIG_X86_PPRO_FENCE */
#include <asm-generic/qspinlock.h>
diff --git a/include/asm-generic/qspinlock.h b/include/asm-generic/qspinlock.h
index 8525931..f47d19e 100644
--- a/include/asm-generic/qspinlock.h
+++ b/include/asm-generic/qspinlock.h
@@ -32,17 +32,21 @@ extern void queue_spin_lock_slowpath(struct qspinlock *lock, int qsval);
*/
static __always_inline int queue_spin_is_locked(struct qspinlock *lock)
{
- return atomic_read(&lock->qlcode) & _QLOCK_LOCK_MASK;
+ return atomic_read(&lock->qlcode);
}
/**
* queue_spin_value_unlocked - is the spinlock structure unlocked?
* @lock: queue spinlock structure
* Return: 1 if it is unlocked, 0 otherwise
+ *
+ * N.B. Whenever there are tasks waiting for the lock, it is considered
+ * locked wrt the lockref code to avoid lock stealing by the lockref
+ * code and change things underneath the lock.
*/
static __always_inline int queue_spin_value_unlocked(struct qspinlock lock)
{
- return !(atomic_read(&lock.qlcode) & _QLOCK_LOCK_MASK);
+ return !atomic_read(&lock.qlcode);
}
/**
diff --git a/include/asm-generic/qspinlock_types.h b/include/asm-generic/qspinlock_types.h
index fbfe898..5547aa7 100644
--- a/include/asm-generic/qspinlock_types.h
+++ b/include/asm-generic/qspinlock_types.h
@@ -33,17 +33,31 @@
/*
* The queue spinlock data structure - a 32-bit word
*
- * The bits assignment are:
+ * For NR_CPUS >= 16K, the bits assignment are:
* Bit 0 : Set if locked
* Bits 1-7 : Not used
* Bits 8-31: Queue code
+ *
+ * For NR_CPUS < 16K, the bits assignment are:
+ * Bit 0 : Set if locked
+ * Bits 1-7 : Not used
+ * Bits 8-15: Reserved for architecture specific optimization
+ * Bits 16-31: Queue code
*/
typedef struct qspinlock {
atomic_t qlcode; /* Lock + queue code */
} arch_spinlock_t;
-#define _QCODE_OFFSET 8
+#if CONFIG_NR_CPUS >= (1 << 14)
+# define _QCODE_LONG /* 24-bit queue code */
+# define _QCODE_OFFSET 8
+# define _QLOCK_LOCK_MASK 0xff
+#else
+# define _QCODE_SHORT /* 16-bit queue code */
+# define _QCODE_OFFSET 16
+# define _QLOCK_LOCK_MASK 0xffff
+#endif
+
#define _QLOCK_LOCKED 1U
-#define _QLOCK_LOCK_MASK 0xff
#endif /* __ASM_GENERIC_QSPINLOCK_TYPES_H */
diff --git a/kernel/locking/qspinlock.c b/kernel/locking/qspinlock.c
index 92ed540..45c68a4 100644
--- a/kernel/locking/qspinlock.c
+++ b/kernel/locking/qspinlock.c
@@ -62,6 +62,10 @@
* Bits 0-1 : queue node index (4 nodes)
* Bits 2-23: CPU number + 1 (4M - 1 CPUs)
*
+ * The 16-bit queue node code is divided into the following 2 fields:
+ * Bits 0-1 : queue node index (4 nodes)
+ * Bits 2-15: CPU number + 1 (16K - 1 CPUs)
+ *
* A queue node code of 0 indicates that no one is waiting for the lock.
* As the value 0 cannot be used as a valid CPU number. We need to add
* 1 to it before putting it into the queue code.
@@ -104,6 +108,97 @@ static DEFINE_PER_CPU_ALIGNED(struct qnode_set, qnset) = { { { 0 } }, 0 };
/*
************************************************************************
+ * The following optimized codes are for architectures that support: *
+ * 1) Atomic byte and short data write *
+ * 2) Byte and short data exchange and compare-exchange instructions *
+ * *
+ * For those architectures, their asm/qspinlock.h header file should *
+ * define the followings in order to use the optimized codes. *
+ * 1) The _ARCH_SUPPORTS_ATOMIC_8_16_BITS_OPS macro *
+ * 2) A "union arch_qspinlock" structure that include the individual *
+ * fields of the qspinlock structure, including: *
+ * o slock - the qspinlock structure *
+ * o lock - the lock byte *
+ * o qcode - the queue node code *
+ * o qlcode - the 32-bit qspinlock word *
+ * *
+ ************************************************************************
+ */
+#ifdef _ARCH_SUPPORTS_ATOMIC_8_16_BITS_OPS
+#ifdef _QCODE_SHORT
+/*
+ * With less than 16K CPUs, the following optimizations are possible with
+ * architectures that allows atomic 8/16 bit operations:
+ * 1) The 16-bit queue code can be accessed or modified directly as a
+ * 16-bit short value without disturbing the first 2 bytes.
+ */
+#define queue_encode_qcode(cpu, idx) (((cpu) + 1) << 2 | (idx))
+
+#define queue_code_xchg queue_code_xchg
+/**
+ * queue_code_xchg - exchange a queue code value
+ * @lock : Pointer to queue spinlock structure
+ * @ocode: Old queue code in the lock [OUT]
+ * @ncode: New queue code to be exchanged
+ * Return: NORMAL_EXIT is always returned
+ */
+static inline enum exitval
+queue_code_xchg(struct qspinlock *lock, u32 *ocode, u32 ncode)
+{
+ union arch_qspinlock *qlock = (union arch_qspinlock *)lock;
+
+ *ocode = xchg(&qlock->qcode, (u16)ncode);
+ return NORMAL_EXIT;
+}
+
+#define queue_spin_trylock_and_clr_qcode queue_spin_trylock_and_clr_qcode
+/**
+ * queue_spin_trylock_and_clr_qcode - Try to lock & clear qcode simultaneously
+ * @lock : Pointer to queue spinlock structure
+ * @qcode: The supposedly current qcode value
+ * Return: true if successful, false otherwise
+ */
+static inline int
+queue_spin_trylock_and_clr_qcode(struct qspinlock *lock, u32 qcode)
+{
+ qcode <<= _QCODE_OFFSET;
+ return atomic_cmpxchg(&lock->qlcode, qcode, _QLOCK_LOCKED) == qcode;
+}
+
+#define qsval_to_qcode qsval_to_qcode
+/**
+ * qsval_to_qcode - Convert a queue spinlock value to a queue code
+ * @qsval : Queue spinlock value
+ * Return : The corresponding queue code value
+ */
+static inline u32
+qsval_to_qcode(int qsval)
+{
+ return (u32)(qsval >> _QCODE_OFFSET);
+}
+#endif /* _QCODE_SHORT */
+
+#ifndef __queue_spin_trylock
+#define __queue_spin_trylock __queue_spin_trylock
+/**
+ * __queue_spin_trylock - try to acquire the lock by setting the lock bit
+ * @lock: Pointer to queue spinlock structure
+ * Return: 1 if lock bit set successfully, 0 if failed
+ *
+ * This is an unfair version of the trylock which should only be called
+ * by a caller who is entitled to acquire the lock.
+ */
+static __always_inline int __queue_spin_trylock(struct qspinlock *lock)
+{
+ union arch_qspinlock *qlock = (union arch_qspinlock *)lock;
+
+ return cmpxchg(&qlock->lock, 0, _QLOCK_LOCKED) == 0;
+}
+#endif
+#endif /* _ARCH_SUPPORTS_ATOMIC_8_16_BITS_OPS */
+
+/*
+ ************************************************************************
* Inline functions used by the queue_spin_lock_slowpath() function *
* that may get superseded by a more optimized version. *
************************************************************************
--
1.7.1
^ permalink raw reply related [flat|nested] 109+ messages in thread
* [PATCH v8 04/10] qspinlock: Optimized code path for 2 contending tasks
2014-04-02 13:27 [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support Waiman Long
` (5 preceding siblings ...)
2014-04-02 13:27 ` Waiman Long
@ 2014-04-02 13:27 ` Waiman Long
2014-04-02 13:27 ` Waiman Long
` (15 subsequent siblings)
22 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-02 13:27 UTC (permalink / raw)
To: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, Peter Zijlstra
Cc: linux-arch, x86, linux-kernel, virtualization, xen-devel, kvm,
Paolo Bonzini, Konrad Rzeszutek Wilk, Paul E. McKenney,
Rik van Riel, Linus Torvalds, Raghavendra K T, David Vrabel,
Oleg Nesterov, Gleb Natapov, Aswin Chandramouleeswaran,
Scott J Norton, Chegu Vinod, Waiman Long
A major problem with the queue spinlock patch is its performance at
low contention level (2-4 contending tasks) where it is slower than
the corresponding ticket spinlock code. The following table shows
the execution time (in ms) of a micro-benchmark where 5M iterations
of the lock/unlock cycles were run on a 10-core Westere-EX x86-64
CPU with 2 different types of loads - standalone (lock and protected
data in different cachelines) and embedded (lock and protected data
in the same cacheline).
[Standalone/Embedded]
# of tasks Ticket lock Queue lock %Change
---------- ----------- ---------- -------
1 135/111 135/101 0%/-9%
2 1045/950 1884/1853 +80%/+95%
3 1827/1783 2256/2264 +23%/+27%
4 2689/2725 2880/2884 +7%/+6%
5 3736/3748 3636/3617 -3%/-3%
6 4942/4984 4294/4253 -13%/-15%
7 6304/6319 4976/4958 -21%/-22%
8 7736/7629 5662/5651 -27%/-26%
It can be seen that the performance degradation is particular bad
with 2 and 3 contending tasks. To reduce that performance deficit
at low contention level, a special specific optimized code path
for 2 contending tasks was added. This special code path can only be
activated with less than 16K of configured CPUs because it uses a byte
in the 32-bit lock word to hold a waiting bit for the 2nd contending
tasks instead of queuing the waiting task in the queue.
With the change, the performance data became:
[Standalone/Embedded]
# of tasks Ticket lock Queue lock %Change
---------- ----------- ---------- -------
2 1045/950 951/955 -9%/+1%
In a multi-socketed server, the optimized code path also seems to
produce a pretty good performance improvement in cross-node contention
traffic at low contention level. The table below show the performance
with 1 contending task per node:
[Standalone]
# of nodes Ticket lock Queue lock %Change
---------- ----------- ---------- -------
1 135 135 0%
2 4452 1024 -77%
3 10767 14030 +30%
4 20835 10740 -48%
Except some drop in performance at the 3 contending tasks level,
the queue spinlock performs much better than the ticket spinlock at
2 and 4 contending tasks level.
With IvyBridge-EX (2.8 GHz), the performance profile of qspinlock vs
ticket spinlock changes quite a bit due to the fact that the pause
instruction in IvyBridge-EX is about 3 times as long as that in
Westmere-EX (25 cycles vs. 8 cycles according to my measurement). So
spinning on the lock word by the ticket spinlock is less problematic
in IvyBridge-EX.
The table below shows the results of the same low-level spinlock test
run on one socket of IvyBridge-EX (15 cores, 1M iterations instead
of 5M):
[Standalone/Embedded]
# of tasks Ticket lock Queue lock %Change
---------- ----------- ---------- -------
1 59/48 56/42 -5%/-13%
2 514/487 289/345 -44%/-29%
3 812/768 1048/1053 +29%/+37%
4 1136/1077 1219/1220 +7%/+13%
5 1464/1398 1560/1581 +7%/+13%
6 1806/1787 1952/1959 +8%/+10%
7 2185/2204 2360/2377 +8%/ +8%
8 2582/2656 2759/2747 +7%/ +3%
9 2979/3131 3120/3103 +5%/ -1%
10 3398/3602 3484/3498 +3%/ -3%
11 3848/4110 3807/3829 -1%/ -7%
12 4326/4655 4132/4117 -4%/-12%
The queue spinlock is still faster than the ticket spinlock with 1 or
2 contending tasks (light spinlock contention). After that, ticket
spinlock is faster (moderate spinlock contention) until there are
11 or more contending tasks for a standalone spinlock or 9 or more
contending tasks for an embedded spinlocks.
The table below shows the performance profile when there is one
contending task are from each of the different nodes in an 8-node
prototype IvyBridge-EX machine:
[Standalone]
# of nodes Ticket lock Queue lock %Change
---------- ----------- ---------- -------
2 532 503 -5%
3 2449 3812 +56%
4 6211 4571 -26%
5 8606 6104 -29%
6 9011 7641 -15%
7 12907 8373 -35%
8 15094 10259 -32%
There is some performance drop at the 3 contending tasks level.
Other than that, queue spinlock is faster than ticket spinlock.
Signed-off-by: Waiman Long <Waiman.Long@hp.com>
---
arch/x86/include/asm/qspinlock.h | 3 +-
kernel/locking/qspinlock.c | 212 +++++++++++++++++++++++++++++++++-----
2 files changed, 187 insertions(+), 28 deletions(-)
diff --git a/arch/x86/include/asm/qspinlock.h b/arch/x86/include/asm/qspinlock.h
index f058b91..265b10b 100644
--- a/arch/x86/include/asm/qspinlock.h
+++ b/arch/x86/include/asm/qspinlock.h
@@ -21,9 +21,10 @@ union arch_qspinlock {
struct qspinlock slock;
struct {
u8 lock; /* Lock bit */
- u8 reserved;
+ u8 wait; /* Waiting bit */
u16 qcode; /* Queue code */
};
+ u16 lock_wait; /* Lock and wait bits */
u32 qlcode; /* Complete lock word */
};
diff --git a/kernel/locking/qspinlock.c b/kernel/locking/qspinlock.c
index 45c68a4..cf16bba 100644
--- a/kernel/locking/qspinlock.c
+++ b/kernel/locking/qspinlock.c
@@ -121,6 +121,8 @@ static DEFINE_PER_CPU_ALIGNED(struct qnode_set, qnset) = { { { 0 } }, 0 };
* o lock - the lock byte *
* o qcode - the queue node code *
* o qlcode - the 32-bit qspinlock word *
+ * o wait - the waiting byte *
+ * o lock_wait - the combined lock and waiting bytes *
* *
************************************************************************
*/
@@ -131,9 +133,135 @@ static DEFINE_PER_CPU_ALIGNED(struct qnode_set, qnset) = { { { 0 } }, 0 };
* architectures that allows atomic 8/16 bit operations:
* 1) The 16-bit queue code can be accessed or modified directly as a
* 16-bit short value without disturbing the first 2 bytes.
+ * 2) The 2nd byte of the 32-bit lock word can be used as a pending bit
+ * for waiting lock acquirer so that it won't need to go through the
+ * MCS style locking queuing which has a higher overhead.
*/
+
+/*
+ * Masks for the lock and wait bits
+ */
+#define _QLOCK_WAIT_SHIFT 8 /* Waiting bit position */
+#define _QLOCK_WAITING (1 << _QLOCK_WAIT_SHIFT)
+#define _QLOCK_LW_MASK (_QLOCK_WAITING | _QLOCK_LOCKED)
+
#define queue_encode_qcode(cpu, idx) (((cpu) + 1) << 2 | (idx))
+#define queue_spin_trylock_quick queue_spin_trylock_quick
+/**
+ * queue_spin_trylock_quick - quick spinning on the queue spinlock
+ * @lock : Pointer to queue spinlock structure
+ * @qsval: Old queue spinlock value
+ * Return: 1 if lock acquired, 0 if failed
+ *
+ * This is an optimized contention path for 2 contending tasks. It
+ * should only be entered if no task is waiting in the queue.
+ *
+ * The lock and wait bits can be in one of following 4 states:
+ *
+ * State lock wait
+ * ----- ---------
+ * [0] 0 0 Lock is free and no one is waiting
+ * [1] 1 0 Lock is not available, but no one is waiting
+ * [2] 0 1 Lock is free, but a waiter is present
+ * [3] 1 1 Lock is not available and a waiter is present
+ *
+ * A task entering the quick path will set the wait bit and be in either
+ * either states 2 or 3. The allowable transitions are:
+ *
+ * [3] => [2] => [1] => [0]
+ * ^ |
+ * +-------------+
+ *
+ * N.B. The wait bit won't be set if the queue code has been set before.
+ * As a result, the queue head can safely get the lock without using
+ * atomic operation as long as it checks that the wait bit hasn't been
+ * set. The cpu_relax() function is used after atomic operation whereas
+ * arch_mutex_cpu_relax() is used after a read.
+ */
+static inline int queue_spin_trylock_quick(struct qspinlock *lock, int qsval)
+{
+ union arch_qspinlock *qlock = (union arch_qspinlock *)lock;
+ int wset = false; /* True if wait bit was set */
+
+ /*
+ * Fall into the quick spinning code path only if no task is waiting
+ * in the queue.
+ */
+ for (; likely(!(qsval >> _QCODE_OFFSET));
+ qsval = atomic_read(&lock->qlcode)) {
+
+ if (unlikely((qsval & _QLOCK_LW_MASK) == _QLOCK_LW_MASK)) {
+ /*
+ * Wait a while to see if either lock or wait bit
+ * is cleared. Leave if the condition isn't changed.
+ */
+ cpu_relax();
+ cpu_relax();
+ qsval = atomic_read(&lock->qlcode);
+ if ((qsval >> _QCODE_OFFSET) ||
+ ((qsval & _QLOCK_LW_MASK) == _QLOCK_LW_MASK))
+ return 0;
+ }
+ if (unlikely(qsval == 0)) {
+ /*
+ * Attempt to acquire the lock directly here
+ */
+ qsval = atomic_cmpxchg(&lock->qlcode, 0, _QLOCK_LOCKED);
+ if (qsval == 0)
+ return 1; /* Got the lock */
+ cpu_relax();
+ continue;
+ }
+ if (unlikely(qsval & _QLOCK_WAITING)) {
+ arch_mutex_cpu_relax();
+ wset = true;
+ continue;
+ }
+
+ /*
+ * If the wait bit has just been cleared, the new lock holder
+ * should be busy in the critical section. It was found that
+ * waiting a bit longer before the exchange operation helps
+ * performance.
+ */
+ if (unlikely(wset))
+ arch_mutex_cpu_relax();
+
+ if (atomic_cmpxchg(&lock->qlcode, qsval, qsval|_QLOCK_WAITING)
+ != qsval) {
+ /*
+ * Another task has got the wait bit before us or
+ * the queue code has been set. Wait a bit and try
+ * again.
+ */
+ cpu_relax();
+ wset = false;
+ continue;
+ }
+
+ /*
+ * Wait a bit here if the lock bit was set.
+ */
+ if (unlikely(qsval & _QLOCK_LOCKED))
+ arch_mutex_cpu_relax();
+
+ /*
+ * Now wait until the lock bit is cleared
+ */
+ while (smp_load_acquire(&qlock->qlcode) & _QLOCK_LOCKED)
+ arch_mutex_cpu_relax();
+
+ /*
+ * Set the lock bit & clear the waiting bit simultaneously
+ * No lock stealing is allowed when this quick path is active.
+ */
+ ACCESS_ONCE(qlock->lock_wait) = _QLOCK_LOCKED;
+ return 1;
+ }
+ return 0;
+}
+
#define queue_code_xchg queue_code_xchg
/**
* queue_code_xchg - exchange a queue code value
@@ -192,7 +320,7 @@ static __always_inline int __queue_spin_trylock(struct qspinlock *lock)
{
union arch_qspinlock *qlock = (union arch_qspinlock *)lock;
- return cmpxchg(&qlock->lock, 0, _QLOCK_LOCKED) == 0;
+ return cmpxchg(&qlock->lock_wait, 0, _QLOCK_LOCKED) == 0;
}
#endif
#endif /* _ARCH_SUPPORTS_ATOMIC_8_16_BITS_OPS */
@@ -203,6 +331,10 @@ static __always_inline int __queue_spin_trylock(struct qspinlock *lock)
* that may get superseded by a more optimized version. *
************************************************************************
*/
+#ifndef queue_spin_trylock_quick
+static inline int queue_spin_trylock_quick(struct qspinlock *lock, int qsval)
+{ return 0; }
+#endif
#ifndef __queue_spin_trylock
/**
@@ -365,37 +497,20 @@ static inline void put_qnode(void)
}
/**
- * queue_spin_lock_slowpath - acquire the queue spinlock
- * @lock : Pointer to queue spinlock structure
- * @qsval: Current value of the queue spinlock 32-bit word
+ * queue_spin_lock_slowerpath - put lock waiter in queue & wait for its turn
+ * @lock : Pointer to queue spinlock structure
+ * @node : Pointer to the queue node
+ * @my_qcode: Queue code for the queue node
*/
-void queue_spin_lock_slowpath(struct qspinlock *lock, int qsval)
+static noinline void queue_spin_lock_slowerpath(struct qspinlock *lock,
+ struct qnode *node, u32 my_qcode)
{
- unsigned int cpu_nr;
- struct qnode *node, *next;
- u32 prev_qcode, my_qcode;
+ int qsval;
+ struct qnode *next;
+ u32 prev_qcode;
enum exitval exitval;
/*
- * Get the queue node
- */
- cpu_nr = smp_processor_id();
- node = get_qnode(cpu_nr, &my_qcode);
-
- /*
- * Initialize the queue node
- */
- node->qhead = false;
- node->next = NULL;
-
- /*
- * The lock may be available at this point, try again if no task was
- * waiting in the queue.
- */
- if (!(qsval >> _QCODE_OFFSET) && queue_spin_trylock(lock))
- goto release_node;
-
- /*
* Exchange current copy of the queue node code
*/
exitval = queue_code_xchg(lock, &prev_qcode, my_qcode);
@@ -463,4 +578,47 @@ set_qhead:
release_node:
put_qnode();
}
+
+/**
+ * queue_spin_lock_slowpath - acquire the queue spinlock
+ * @lock : Pointer to queue spinlock structure
+ * @qsval: Current value of the queue spinlock 32-bit word
+ *
+ * The slowpath was broken into a regular slowpath and a slowerpath. The
+ * slowpath contains the quick spinning code and the slower path contains
+ * the regular lock waiter queuing code. This is to avoid the complexity in
+ * the queuing code from slowing down the quick spinning path due to
+ * compiler optimization.
+ */
+void queue_spin_lock_slowpath(struct qspinlock *lock, int qsval)
+{
+ struct qnode *node;
+ u32 my_qcode, cpu_nr;
+
+ /*
+ * Try the quick spinning code path
+ */
+ if (queue_spin_trylock_quick(lock, qsval))
+ return;
+ /*
+ * Get the queue node
+ */
+ cpu_nr = smp_processor_id();
+ node = get_qnode(cpu_nr, &my_qcode);
+
+ /*
+ * Initialize the queue node
+ */
+ node->qhead = false;
+ node->next = NULL;
+
+ /*
+ * The lock may be available at this point, try again if no task was
+ * waiting in the queue.
+ */
+ if (likely(!(qsval >> _QCODE_OFFSET) && queue_spin_trylock(lock)))
+ put_qnode(); /* Return the queue node */
+ else
+ queue_spin_lock_slowerpath(lock, node, my_qcode);
+}
EXPORT_SYMBOL(queue_spin_lock_slowpath);
--
1.7.1
^ permalink raw reply related [flat|nested] 109+ messages in thread
* [PATCH v8 04/10] qspinlock: Optimized code path for 2 contending tasks
2014-04-02 13:27 [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support Waiman Long
` (6 preceding siblings ...)
2014-04-02 13:27 ` [PATCH v8 04/10] qspinlock: Optimized code path for 2 contending tasks Waiman Long
@ 2014-04-02 13:27 ` Waiman Long
2014-04-02 13:27 ` Waiman Long
` (14 subsequent siblings)
22 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-02 13:27 UTC (permalink / raw)
To: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, Peter Zijlstra
Cc: linux-arch, Waiman Long, Raghavendra K T, Gleb Natapov, kvm,
Aswin Chandramouleeswaran, Scott J Norton, x86, Paolo Bonzini,
linux-kernel, virtualization, Chegu Vinod, David Vrabel,
Oleg Nesterov, xen-devel, Paul E. McKenney, Linus Torvalds
A major problem with the queue spinlock patch is its performance at
low contention level (2-4 contending tasks) where it is slower than
the corresponding ticket spinlock code. The following table shows
the execution time (in ms) of a micro-benchmark where 5M iterations
of the lock/unlock cycles were run on a 10-core Westere-EX x86-64
CPU with 2 different types of loads - standalone (lock and protected
data in different cachelines) and embedded (lock and protected data
in the same cacheline).
[Standalone/Embedded]
# of tasks Ticket lock Queue lock %Change
---------- ----------- ---------- -------
1 135/111 135/101 0%/-9%
2 1045/950 1884/1853 +80%/+95%
3 1827/1783 2256/2264 +23%/+27%
4 2689/2725 2880/2884 +7%/+6%
5 3736/3748 3636/3617 -3%/-3%
6 4942/4984 4294/4253 -13%/-15%
7 6304/6319 4976/4958 -21%/-22%
8 7736/7629 5662/5651 -27%/-26%
It can be seen that the performance degradation is particular bad
with 2 and 3 contending tasks. To reduce that performance deficit
at low contention level, a special specific optimized code path
for 2 contending tasks was added. This special code path can only be
activated with less than 16K of configured CPUs because it uses a byte
in the 32-bit lock word to hold a waiting bit for the 2nd contending
tasks instead of queuing the waiting task in the queue.
With the change, the performance data became:
[Standalone/Embedded]
# of tasks Ticket lock Queue lock %Change
---------- ----------- ---------- -------
2 1045/950 951/955 -9%/+1%
In a multi-socketed server, the optimized code path also seems to
produce a pretty good performance improvement in cross-node contention
traffic at low contention level. The table below show the performance
with 1 contending task per node:
[Standalone]
# of nodes Ticket lock Queue lock %Change
---------- ----------- ---------- -------
1 135 135 0%
2 4452 1024 -77%
3 10767 14030 +30%
4 20835 10740 -48%
Except some drop in performance at the 3 contending tasks level,
the queue spinlock performs much better than the ticket spinlock at
2 and 4 contending tasks level.
With IvyBridge-EX (2.8 GHz), the performance profile of qspinlock vs
ticket spinlock changes quite a bit due to the fact that the pause
instruction in IvyBridge-EX is about 3 times as long as that in
Westmere-EX (25 cycles vs. 8 cycles according to my measurement). So
spinning on the lock word by the ticket spinlock is less problematic
in IvyBridge-EX.
The table below shows the results of the same low-level spinlock test
run on one socket of IvyBridge-EX (15 cores, 1M iterations instead
of 5M):
[Standalone/Embedded]
# of tasks Ticket lock Queue lock %Change
---------- ----------- ---------- -------
1 59/48 56/42 -5%/-13%
2 514/487 289/345 -44%/-29%
3 812/768 1048/1053 +29%/+37%
4 1136/1077 1219/1220 +7%/+13%
5 1464/1398 1560/1581 +7%/+13%
6 1806/1787 1952/1959 +8%/+10%
7 2185/2204 2360/2377 +8%/ +8%
8 2582/2656 2759/2747 +7%/ +3%
9 2979/3131 3120/3103 +5%/ -1%
10 3398/3602 3484/3498 +3%/ -3%
11 3848/4110 3807/3829 -1%/ -7%
12 4326/4655 4132/4117 -4%/-12%
The queue spinlock is still faster than the ticket spinlock with 1 or
2 contending tasks (light spinlock contention). After that, ticket
spinlock is faster (moderate spinlock contention) until there are
11 or more contending tasks for a standalone spinlock or 9 or more
contending tasks for an embedded spinlocks.
The table below shows the performance profile when there is one
contending task are from each of the different nodes in an 8-node
prototype IvyBridge-EX machine:
[Standalone]
# of nodes Ticket lock Queue lock %Change
---------- ----------- ---------- -------
2 532 503 -5%
3 2449 3812 +56%
4 6211 4571 -26%
5 8606 6104 -29%
6 9011 7641 -15%
7 12907 8373 -35%
8 15094 10259 -32%
There is some performance drop at the 3 contending tasks level.
Other than that, queue spinlock is faster than ticket spinlock.
Signed-off-by: Waiman Long <Waiman.Long@hp.com>
---
arch/x86/include/asm/qspinlock.h | 3 +-
kernel/locking/qspinlock.c | 212 +++++++++++++++++++++++++++++++++-----
2 files changed, 187 insertions(+), 28 deletions(-)
diff --git a/arch/x86/include/asm/qspinlock.h b/arch/x86/include/asm/qspinlock.h
index f058b91..265b10b 100644
--- a/arch/x86/include/asm/qspinlock.h
+++ b/arch/x86/include/asm/qspinlock.h
@@ -21,9 +21,10 @@ union arch_qspinlock {
struct qspinlock slock;
struct {
u8 lock; /* Lock bit */
- u8 reserved;
+ u8 wait; /* Waiting bit */
u16 qcode; /* Queue code */
};
+ u16 lock_wait; /* Lock and wait bits */
u32 qlcode; /* Complete lock word */
};
diff --git a/kernel/locking/qspinlock.c b/kernel/locking/qspinlock.c
index 45c68a4..cf16bba 100644
--- a/kernel/locking/qspinlock.c
+++ b/kernel/locking/qspinlock.c
@@ -121,6 +121,8 @@ static DEFINE_PER_CPU_ALIGNED(struct qnode_set, qnset) = { { { 0 } }, 0 };
* o lock - the lock byte *
* o qcode - the queue node code *
* o qlcode - the 32-bit qspinlock word *
+ * o wait - the waiting byte *
+ * o lock_wait - the combined lock and waiting bytes *
* *
************************************************************************
*/
@@ -131,9 +133,135 @@ static DEFINE_PER_CPU_ALIGNED(struct qnode_set, qnset) = { { { 0 } }, 0 };
* architectures that allows atomic 8/16 bit operations:
* 1) The 16-bit queue code can be accessed or modified directly as a
* 16-bit short value without disturbing the first 2 bytes.
+ * 2) The 2nd byte of the 32-bit lock word can be used as a pending bit
+ * for waiting lock acquirer so that it won't need to go through the
+ * MCS style locking queuing which has a higher overhead.
*/
+
+/*
+ * Masks for the lock and wait bits
+ */
+#define _QLOCK_WAIT_SHIFT 8 /* Waiting bit position */
+#define _QLOCK_WAITING (1 << _QLOCK_WAIT_SHIFT)
+#define _QLOCK_LW_MASK (_QLOCK_WAITING | _QLOCK_LOCKED)
+
#define queue_encode_qcode(cpu, idx) (((cpu) + 1) << 2 | (idx))
+#define queue_spin_trylock_quick queue_spin_trylock_quick
+/**
+ * queue_spin_trylock_quick - quick spinning on the queue spinlock
+ * @lock : Pointer to queue spinlock structure
+ * @qsval: Old queue spinlock value
+ * Return: 1 if lock acquired, 0 if failed
+ *
+ * This is an optimized contention path for 2 contending tasks. It
+ * should only be entered if no task is waiting in the queue.
+ *
+ * The lock and wait bits can be in one of following 4 states:
+ *
+ * State lock wait
+ * ----- ---------
+ * [0] 0 0 Lock is free and no one is waiting
+ * [1] 1 0 Lock is not available, but no one is waiting
+ * [2] 0 1 Lock is free, but a waiter is present
+ * [3] 1 1 Lock is not available and a waiter is present
+ *
+ * A task entering the quick path will set the wait bit and be in either
+ * either states 2 or 3. The allowable transitions are:
+ *
+ * [3] => [2] => [1] => [0]
+ * ^ |
+ * +-------------+
+ *
+ * N.B. The wait bit won't be set if the queue code has been set before.
+ * As a result, the queue head can safely get the lock without using
+ * atomic operation as long as it checks that the wait bit hasn't been
+ * set. The cpu_relax() function is used after atomic operation whereas
+ * arch_mutex_cpu_relax() is used after a read.
+ */
+static inline int queue_spin_trylock_quick(struct qspinlock *lock, int qsval)
+{
+ union arch_qspinlock *qlock = (union arch_qspinlock *)lock;
+ int wset = false; /* True if wait bit was set */
+
+ /*
+ * Fall into the quick spinning code path only if no task is waiting
+ * in the queue.
+ */
+ for (; likely(!(qsval >> _QCODE_OFFSET));
+ qsval = atomic_read(&lock->qlcode)) {
+
+ if (unlikely((qsval & _QLOCK_LW_MASK) == _QLOCK_LW_MASK)) {
+ /*
+ * Wait a while to see if either lock or wait bit
+ * is cleared. Leave if the condition isn't changed.
+ */
+ cpu_relax();
+ cpu_relax();
+ qsval = atomic_read(&lock->qlcode);
+ if ((qsval >> _QCODE_OFFSET) ||
+ ((qsval & _QLOCK_LW_MASK) == _QLOCK_LW_MASK))
+ return 0;
+ }
+ if (unlikely(qsval == 0)) {
+ /*
+ * Attempt to acquire the lock directly here
+ */
+ qsval = atomic_cmpxchg(&lock->qlcode, 0, _QLOCK_LOCKED);
+ if (qsval == 0)
+ return 1; /* Got the lock */
+ cpu_relax();
+ continue;
+ }
+ if (unlikely(qsval & _QLOCK_WAITING)) {
+ arch_mutex_cpu_relax();
+ wset = true;
+ continue;
+ }
+
+ /*
+ * If the wait bit has just been cleared, the new lock holder
+ * should be busy in the critical section. It was found that
+ * waiting a bit longer before the exchange operation helps
+ * performance.
+ */
+ if (unlikely(wset))
+ arch_mutex_cpu_relax();
+
+ if (atomic_cmpxchg(&lock->qlcode, qsval, qsval|_QLOCK_WAITING)
+ != qsval) {
+ /*
+ * Another task has got the wait bit before us or
+ * the queue code has been set. Wait a bit and try
+ * again.
+ */
+ cpu_relax();
+ wset = false;
+ continue;
+ }
+
+ /*
+ * Wait a bit here if the lock bit was set.
+ */
+ if (unlikely(qsval & _QLOCK_LOCKED))
+ arch_mutex_cpu_relax();
+
+ /*
+ * Now wait until the lock bit is cleared
+ */
+ while (smp_load_acquire(&qlock->qlcode) & _QLOCK_LOCKED)
+ arch_mutex_cpu_relax();
+
+ /*
+ * Set the lock bit & clear the waiting bit simultaneously
+ * No lock stealing is allowed when this quick path is active.
+ */
+ ACCESS_ONCE(qlock->lock_wait) = _QLOCK_LOCKED;
+ return 1;
+ }
+ return 0;
+}
+
#define queue_code_xchg queue_code_xchg
/**
* queue_code_xchg - exchange a queue code value
@@ -192,7 +320,7 @@ static __always_inline int __queue_spin_trylock(struct qspinlock *lock)
{
union arch_qspinlock *qlock = (union arch_qspinlock *)lock;
- return cmpxchg(&qlock->lock, 0, _QLOCK_LOCKED) == 0;
+ return cmpxchg(&qlock->lock_wait, 0, _QLOCK_LOCKED) == 0;
}
#endif
#endif /* _ARCH_SUPPORTS_ATOMIC_8_16_BITS_OPS */
@@ -203,6 +331,10 @@ static __always_inline int __queue_spin_trylock(struct qspinlock *lock)
* that may get superseded by a more optimized version. *
************************************************************************
*/
+#ifndef queue_spin_trylock_quick
+static inline int queue_spin_trylock_quick(struct qspinlock *lock, int qsval)
+{ return 0; }
+#endif
#ifndef __queue_spin_trylock
/**
@@ -365,37 +497,20 @@ static inline void put_qnode(void)
}
/**
- * queue_spin_lock_slowpath - acquire the queue spinlock
- * @lock : Pointer to queue spinlock structure
- * @qsval: Current value of the queue spinlock 32-bit word
+ * queue_spin_lock_slowerpath - put lock waiter in queue & wait for its turn
+ * @lock : Pointer to queue spinlock structure
+ * @node : Pointer to the queue node
+ * @my_qcode: Queue code for the queue node
*/
-void queue_spin_lock_slowpath(struct qspinlock *lock, int qsval)
+static noinline void queue_spin_lock_slowerpath(struct qspinlock *lock,
+ struct qnode *node, u32 my_qcode)
{
- unsigned int cpu_nr;
- struct qnode *node, *next;
- u32 prev_qcode, my_qcode;
+ int qsval;
+ struct qnode *next;
+ u32 prev_qcode;
enum exitval exitval;
/*
- * Get the queue node
- */
- cpu_nr = smp_processor_id();
- node = get_qnode(cpu_nr, &my_qcode);
-
- /*
- * Initialize the queue node
- */
- node->qhead = false;
- node->next = NULL;
-
- /*
- * The lock may be available at this point, try again if no task was
- * waiting in the queue.
- */
- if (!(qsval >> _QCODE_OFFSET) && queue_spin_trylock(lock))
- goto release_node;
-
- /*
* Exchange current copy of the queue node code
*/
exitval = queue_code_xchg(lock, &prev_qcode, my_qcode);
@@ -463,4 +578,47 @@ set_qhead:
release_node:
put_qnode();
}
+
+/**
+ * queue_spin_lock_slowpath - acquire the queue spinlock
+ * @lock : Pointer to queue spinlock structure
+ * @qsval: Current value of the queue spinlock 32-bit word
+ *
+ * The slowpath was broken into a regular slowpath and a slowerpath. The
+ * slowpath contains the quick spinning code and the slower path contains
+ * the regular lock waiter queuing code. This is to avoid the complexity in
+ * the queuing code from slowing down the quick spinning path due to
+ * compiler optimization.
+ */
+void queue_spin_lock_slowpath(struct qspinlock *lock, int qsval)
+{
+ struct qnode *node;
+ u32 my_qcode, cpu_nr;
+
+ /*
+ * Try the quick spinning code path
+ */
+ if (queue_spin_trylock_quick(lock, qsval))
+ return;
+ /*
+ * Get the queue node
+ */
+ cpu_nr = smp_processor_id();
+ node = get_qnode(cpu_nr, &my_qcode);
+
+ /*
+ * Initialize the queue node
+ */
+ node->qhead = false;
+ node->next = NULL;
+
+ /*
+ * The lock may be available at this point, try again if no task was
+ * waiting in the queue.
+ */
+ if (likely(!(qsval >> _QCODE_OFFSET) && queue_spin_trylock(lock)))
+ put_qnode(); /* Return the queue node */
+ else
+ queue_spin_lock_slowerpath(lock, node, my_qcode);
+}
EXPORT_SYMBOL(queue_spin_lock_slowpath);
--
1.7.1
^ permalink raw reply related [flat|nested] 109+ messages in thread
* [PATCH v8 05/10] pvqspinlock, x86: Allow unfair spinlock in a PV guest
2014-04-02 13:27 [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support Waiman Long
@ 2014-04-02 13:27 ` Waiman Long
2014-04-02 13:27 ` Waiman Long
` (21 subsequent siblings)
22 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-02 13:27 UTC (permalink / raw)
To: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, Peter Zijlstra
Cc: linux-arch, x86, linux-kernel, virtualization, xen-devel, kvm,
Paolo Bonzini, Konrad Rzeszutek Wilk, Paul E. McKenney,
Rik van Riel, Linus Torvalds, Raghavendra K T, David Vrabel,
Oleg Nesterov, Gleb Natapov, Aswin Chandramouleeswaran,
Scott J Norton, Chegu Vinod, Waiman Long
Locking is always an issue in a virtualized environment because of 2
different types of problems:
1) Lock holder preemption
2) Lock waiter preemption
One solution to the lock waiter preemption problem is to allow unfair
lock in a para-virtualized environment. In this case, a new lock
acquirer can come and steal the lock if the next-in-line CPU to get
the lock is scheduled out.
A simple unfair lock is the test-and-set byte lock where an lock
acquirer constantly spins on the lock word and attempt to grab it
when the lock is freed. This simple unfair lock has 2 main problems:
1) The constant spinning on the lock word put a lot of cacheline
contention traffic on the affected cacheline, thus slowing tasks
that need to access the cacheline.
2) Lock starvation is a real possibility especially if the number of
virtual CPUs is large.
A simple unfair queue spinlock can be implemented by allowing lock
stealing in the fast path. The slowpath will still be the same as
before and all the pending lock acquirers will have to wait in the
queue in FIFO order. This cannot completely solve the lock waiter
preemption problem, but it does help to alleviate the impact of
this problem.
To illustrate the performance impact of the various approaches, the
disk workload of the AIM7 benchmark was run on a 4-socket 40-core
Westmere-EX system (bare metal, HT off, ramdisk) on a 3.14-rc5
based kernel. The table below shows the performance (jobs/minutes)
of the different kernel flavors.
Kernel disk-xfs JPM disk-ext4 JPM
------ ------------ -------------
ticketlock 5,660,377 1,151,631
qspinlock 5,678,233 2,033,898
simple test-and-set 5,678,233 533,966
simple unfair qspinlock 5,732,484 2,216,749
The disk-xfs workload spent only about 2.88% of CPU time in
_raw_spin_lock() whereas the disk-ext4 workload spent 57.8% of CPU
time in _raw_spin_lock(). It can be seen that there wasn't too much
difference in performance with low spinlock contention in the disk-xfs
workload. With heavy spinlock contention, the simple test-and-set
lock is only half the performance of the baseline ticketlock. The
simple unfair qspinlock, on the other hand, is almost double the
performance of the ticketlock.
Unfair lock in a native environment is generally not a good idea as
there is a possibility of lock starvation for a heavily contended lock.
This patch adds a new configuration option for the x86 architecture
to enable the use of unfair queue spinlock (PARAVIRT_UNFAIR_LOCKS) in
a para-virtualized guest. A jump label (paravirt_unfairlocks_enabled)
is used to switch between a fair and an unfair version of the spinlock
code. This jump label will only be enabled in a PV guest where the
X86_FEATURE_HYPERVISOR feature bit is set.
Enabling this configuration feature causes a slight decrease the
performance of an uncontended lock-unlock operation by about 1-2%
mainly due to the use of a static key. However, uncontended lock-unlock
operation are really just a tiny percentage of a real workload. So
there should no noticeable change in application performance.
With the unfair locking activated on bare metal 4-socket Westmere-EX
box, the execution times (in ms) of a spinlock micro-benchmark were
as follows:
# of Ticket Fair Unfair simple Unfair
tasks lock queue lock queue lock byte lock
------ ------- ---------- ---------- ---------
1 135 135 137 137
2 1045 951 732 462
3 1827 2256 915 963
4 2689 2880 1377 1706
5 3736 3636 1439 2127
6 4942 4294 1724 2980
7 6304 4976 2001 3491
8 7736 5662 2317 3955
Executing one task per node, the performance data were:
# of Ticket Fair Unfair simple Unfair
nodes lock queue lock queue lock byte lock
------ ------- ---------- ---------- ---------
1 135 135 137 137
2 4452 1024 1697 710
3 10767 14030 2015 1468
4 20835 10740 2732 2582
In general, the shorter the critical section, the better the
performance benefit of an unfair lock. For large critical section,
however, there may not be much benefit.
Signed-off-by: Waiman Long <Waiman.Long@hp.com>
---
arch/x86/Kconfig | 11 ++++
arch/x86/include/asm/qspinlock.h | 86 +++++++++++++++++++++++++++++++++-
arch/x86/kernel/Makefile | 1 +
arch/x86/kernel/paravirt-spinlocks.c | 26 ++++++++++
4 files changed, 122 insertions(+), 2 deletions(-)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index de573f9..010abc4 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -629,6 +629,17 @@ config PARAVIRT_SPINLOCKS
If you are unsure how to answer this question, answer Y.
+config PARAVIRT_UNFAIR_LOCKS
+ bool "Enable unfair locks in a para-virtualized guest"
+ depends on PARAVIRT && SMP && QUEUE_SPINLOCK
+ depends on !CONFIG_X86_OOSTORE && !CONFIG_X86_PPRO_FENCE
+ ---help---
+ This changes the kernel to use unfair locks in a
+ para-virtualized guest. This will help performance in most
+ cases. However, there is a possibility of lock starvation
+ on a heavily contended lock especially in a large guest
+ with many virtual CPUs.
+
source "arch/x86/xen/Kconfig"
config KVM_GUEST
diff --git a/arch/x86/include/asm/qspinlock.h b/arch/x86/include/asm/qspinlock.h
index 265b10b..d91994d 100644
--- a/arch/x86/include/asm/qspinlock.h
+++ b/arch/x86/include/asm/qspinlock.h
@@ -28,6 +28,10 @@ union arch_qspinlock {
u32 qlcode; /* Complete lock word */
};
+#ifdef CONFIG_PARAVIRT_UNFAIR_LOCKS
+extern struct static_key paravirt_unfairlocks_enabled;
+#endif
+
#define queue_spin_unlock queue_spin_unlock
/**
* queue_spin_unlock - release a queue spinlock
@@ -52,15 +56,23 @@ static inline void queue_spin_unlock(struct qspinlock *lock)
/**
* __queue_spin_trylock - acquire the lock by setting the lock bit
* @lock: Pointer to queue spinlock structure
- * Return: Always return 1
+ * Return: 1 if lock acquired, 0 otherwise
*
* This routine should only be called when the caller is the only one
- * entitled to acquire the lock. No lock stealing is allowed.
+ * entitled to acquire the lock.
*/
static __always_inline int __queue_spin_trylock(struct qspinlock *lock)
{
union arch_qspinlock *qlock = (union arch_qspinlock *)lock;
+#ifdef CONFIG_PARAVIRT_UNFAIR_LOCKS
+ if (static_key_false(¶virt_unfairlocks_enabled))
+ /*
+ * Need to use atomic operation to get the lock when
+ * lock stealing can happen.
+ */
+ return cmpxchg(&qlock->lock, 0, _QLOCK_LOCKED) == 0;
+#endif
barrier();
ACCESS_ONCE(qlock->lock) = _QLOCK_LOCKED;
barrier();
@@ -71,4 +83,74 @@ static __always_inline int __queue_spin_trylock(struct qspinlock *lock)
#include <asm-generic/qspinlock.h>
+#ifdef CONFIG_PARAVIRT_UNFAIR_LOCKS
+/**
+ * queue_spin_lock_unfair - acquire a queue spinlock unfairly
+ * @lock: Pointer to queue spinlock structure
+ */
+static __always_inline void queue_spin_lock_unfair(struct qspinlock *lock)
+{
+ union arch_qspinlock *qlock = (union arch_qspinlock *)lock;
+
+ if (likely(cmpxchg(&qlock->lock, 0, _QLOCK_LOCKED) == 0))
+ return;
+ /*
+ * Since the lock is now unfair, we should not activate the 2-task
+ * quick spinning code path which disallows lock stealing.
+ */
+ queue_spin_lock_slowpath(lock, -1);
+}
+
+/**
+ * queue_spin_trylock_unfair - try to acquire the queue spinlock unfairly
+ * @lock : Pointer to queue spinlock structure
+ * Return: 1 if lock acquired, 0 if failed
+ */
+static __always_inline int queue_spin_trylock_unfair(struct qspinlock *lock)
+{
+ union arch_qspinlock *qlock = (union arch_qspinlock *)lock;
+
+ if (!qlock->lock && (cmpxchg(&qlock->lock, 0, _QLOCK_LOCKED) == 0))
+ return 1;
+ return 0;
+}
+
+/*
+ * Redefine arch_spin_lock and arch_spin_trylock as inline functions that will
+ * jump to the unfair versions if the static key paravirt_unfairlocks_enabled
+ * is true.
+ */
+#undef arch_spin_lock
+#undef arch_spin_trylock
+#undef arch_spin_lock_flags
+
+/**
+ * arch_spin_lock - acquire a queue spinlock
+ * @lock: Pointer to queue spinlock structure
+ */
+static inline void arch_spin_lock(struct qspinlock *lock)
+{
+ if (static_key_false(¶virt_unfairlocks_enabled))
+ queue_spin_lock_unfair(lock);
+ else
+ queue_spin_lock(lock);
+}
+
+/**
+ * arch_spin_trylock - try to acquire the queue spinlock
+ * @lock : Pointer to queue spinlock structure
+ * Return: 1 if lock acquired, 0 if failed
+ */
+static inline int arch_spin_trylock(struct qspinlock *lock)
+{
+ if (static_key_false(¶virt_unfairlocks_enabled))
+ return queue_spin_trylock_unfair(lock);
+ else
+ return queue_spin_trylock(lock);
+}
+
+#define arch_spin_lock_flags(l, f) arch_spin_lock(l)
+
+#endif /* CONFIG_PARAVIRT_UNFAIR_LOCKS */
+
#endif /* _ASM_X86_QSPINLOCK_H */
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index cb648c8..1107a20 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -88,6 +88,7 @@ obj-$(CONFIG_DEBUG_NMI_SELFTEST) += nmi_selftest.o
obj-$(CONFIG_KVM_GUEST) += kvm.o kvmclock.o
obj-$(CONFIG_PARAVIRT) += paravirt.o paravirt_patch_$(BITS).o
obj-$(CONFIG_PARAVIRT_SPINLOCKS)+= paravirt-spinlocks.o
+obj-$(CONFIG_PARAVIRT_UNFAIR_LOCKS)+= paravirt-spinlocks.o
obj-$(CONFIG_PARAVIRT_CLOCK) += pvclock.o
obj-$(CONFIG_PCSPKR_PLATFORM) += pcspeaker.o
diff --git a/arch/x86/kernel/paravirt-spinlocks.c b/arch/x86/kernel/paravirt-spinlocks.c
index bbb6c73..7dfd02d 100644
--- a/arch/x86/kernel/paravirt-spinlocks.c
+++ b/arch/x86/kernel/paravirt-spinlocks.c
@@ -8,6 +8,7 @@
#include <asm/paravirt.h>
+#ifdef CONFIG_PARAVIRT_SPINLOCKS
struct pv_lock_ops pv_lock_ops = {
#ifdef CONFIG_SMP
.lock_spinning = __PV_IS_CALLEE_SAVE(paravirt_nop),
@@ -18,3 +19,28 @@ EXPORT_SYMBOL(pv_lock_ops);
struct static_key paravirt_ticketlocks_enabled = STATIC_KEY_INIT_FALSE;
EXPORT_SYMBOL(paravirt_ticketlocks_enabled);
+#endif
+
+#ifdef CONFIG_PARAVIRT_UNFAIR_LOCKS
+struct static_key paravirt_unfairlocks_enabled = STATIC_KEY_INIT_FALSE;
+EXPORT_SYMBOL(paravirt_unfairlocks_enabled);
+
+#include <linux/init.h>
+#include <asm/cpufeature.h>
+
+/*
+ * Enable unfair lock only if it is running under a hypervisor
+ */
+static __init int unfair_locks_init_jump(void)
+{
+ if (!boot_cpu_has(X86_FEATURE_HYPERVISOR))
+ return 0;
+
+ static_key_slow_inc(¶virt_unfairlocks_enabled);
+ printk(KERN_INFO "Unfair spinlock enabled\n");
+
+ return 0;
+}
+early_initcall(unfair_locks_init_jump);
+
+#endif
--
1.7.1
^ permalink raw reply related [flat|nested] 109+ messages in thread
* [PATCH v8 05/10] pvqspinlock, x86: Allow unfair spinlock in a PV guest
@ 2014-04-02 13:27 ` Waiman Long
0 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-02 13:27 UTC (permalink / raw)
To: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, Peter Zijlstra
Cc: linux-arch, Waiman Long, Raghavendra K T, Gleb Natapov, kvm,
Aswin Chandramouleeswaran, Scott J Norton, x86, Paolo Bonzini,
linux-kernel, virtualization, Chegu Vinod, David Vrabel,
Oleg Nesterov, xen-devel, Paul E. McKenney, Linus Torvalds
Locking is always an issue in a virtualized environment because of 2
different types of problems:
1) Lock holder preemption
2) Lock waiter preemption
One solution to the lock waiter preemption problem is to allow unfair
lock in a para-virtualized environment. In this case, a new lock
acquirer can come and steal the lock if the next-in-line CPU to get
the lock is scheduled out.
A simple unfair lock is the test-and-set byte lock where an lock
acquirer constantly spins on the lock word and attempt to grab it
when the lock is freed. This simple unfair lock has 2 main problems:
1) The constant spinning on the lock word put a lot of cacheline
contention traffic on the affected cacheline, thus slowing tasks
that need to access the cacheline.
2) Lock starvation is a real possibility especially if the number of
virtual CPUs is large.
A simple unfair queue spinlock can be implemented by allowing lock
stealing in the fast path. The slowpath will still be the same as
before and all the pending lock acquirers will have to wait in the
queue in FIFO order. This cannot completely solve the lock waiter
preemption problem, but it does help to alleviate the impact of
this problem.
To illustrate the performance impact of the various approaches, the
disk workload of the AIM7 benchmark was run on a 4-socket 40-core
Westmere-EX system (bare metal, HT off, ramdisk) on a 3.14-rc5
based kernel. The table below shows the performance (jobs/minutes)
of the different kernel flavors.
Kernel disk-xfs JPM disk-ext4 JPM
------ ------------ -------------
ticketlock 5,660,377 1,151,631
qspinlock 5,678,233 2,033,898
simple test-and-set 5,678,233 533,966
simple unfair qspinlock 5,732,484 2,216,749
The disk-xfs workload spent only about 2.88% of CPU time in
_raw_spin_lock() whereas the disk-ext4 workload spent 57.8% of CPU
time in _raw_spin_lock(). It can be seen that there wasn't too much
difference in performance with low spinlock contention in the disk-xfs
workload. With heavy spinlock contention, the simple test-and-set
lock is only half the performance of the baseline ticketlock. The
simple unfair qspinlock, on the other hand, is almost double the
performance of the ticketlock.
Unfair lock in a native environment is generally not a good idea as
there is a possibility of lock starvation for a heavily contended lock.
This patch adds a new configuration option for the x86 architecture
to enable the use of unfair queue spinlock (PARAVIRT_UNFAIR_LOCKS) in
a para-virtualized guest. A jump label (paravirt_unfairlocks_enabled)
is used to switch between a fair and an unfair version of the spinlock
code. This jump label will only be enabled in a PV guest where the
X86_FEATURE_HYPERVISOR feature bit is set.
Enabling this configuration feature causes a slight decrease the
performance of an uncontended lock-unlock operation by about 1-2%
mainly due to the use of a static key. However, uncontended lock-unlock
operation are really just a tiny percentage of a real workload. So
there should no noticeable change in application performance.
With the unfair locking activated on bare metal 4-socket Westmere-EX
box, the execution times (in ms) of a spinlock micro-benchmark were
as follows:
# of Ticket Fair Unfair simple Unfair
tasks lock queue lock queue lock byte lock
------ ------- ---------- ---------- ---------
1 135 135 137 137
2 1045 951 732 462
3 1827 2256 915 963
4 2689 2880 1377 1706
5 3736 3636 1439 2127
6 4942 4294 1724 2980
7 6304 4976 2001 3491
8 7736 5662 2317 3955
Executing one task per node, the performance data were:
# of Ticket Fair Unfair simple Unfair
nodes lock queue lock queue lock byte lock
------ ------- ---------- ---------- ---------
1 135 135 137 137
2 4452 1024 1697 710
3 10767 14030 2015 1468
4 20835 10740 2732 2582
In general, the shorter the critical section, the better the
performance benefit of an unfair lock. For large critical section,
however, there may not be much benefit.
Signed-off-by: Waiman Long <Waiman.Long@hp.com>
---
arch/x86/Kconfig | 11 ++++
arch/x86/include/asm/qspinlock.h | 86 +++++++++++++++++++++++++++++++++-
arch/x86/kernel/Makefile | 1 +
arch/x86/kernel/paravirt-spinlocks.c | 26 ++++++++++
4 files changed, 122 insertions(+), 2 deletions(-)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index de573f9..010abc4 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -629,6 +629,17 @@ config PARAVIRT_SPINLOCKS
If you are unsure how to answer this question, answer Y.
+config PARAVIRT_UNFAIR_LOCKS
+ bool "Enable unfair locks in a para-virtualized guest"
+ depends on PARAVIRT && SMP && QUEUE_SPINLOCK
+ depends on !CONFIG_X86_OOSTORE && !CONFIG_X86_PPRO_FENCE
+ ---help---
+ This changes the kernel to use unfair locks in a
+ para-virtualized guest. This will help performance in most
+ cases. However, there is a possibility of lock starvation
+ on a heavily contended lock especially in a large guest
+ with many virtual CPUs.
+
source "arch/x86/xen/Kconfig"
config KVM_GUEST
diff --git a/arch/x86/include/asm/qspinlock.h b/arch/x86/include/asm/qspinlock.h
index 265b10b..d91994d 100644
--- a/arch/x86/include/asm/qspinlock.h
+++ b/arch/x86/include/asm/qspinlock.h
@@ -28,6 +28,10 @@ union arch_qspinlock {
u32 qlcode; /* Complete lock word */
};
+#ifdef CONFIG_PARAVIRT_UNFAIR_LOCKS
+extern struct static_key paravirt_unfairlocks_enabled;
+#endif
+
#define queue_spin_unlock queue_spin_unlock
/**
* queue_spin_unlock - release a queue spinlock
@@ -52,15 +56,23 @@ static inline void queue_spin_unlock(struct qspinlock *lock)
/**
* __queue_spin_trylock - acquire the lock by setting the lock bit
* @lock: Pointer to queue spinlock structure
- * Return: Always return 1
+ * Return: 1 if lock acquired, 0 otherwise
*
* This routine should only be called when the caller is the only one
- * entitled to acquire the lock. No lock stealing is allowed.
+ * entitled to acquire the lock.
*/
static __always_inline int __queue_spin_trylock(struct qspinlock *lock)
{
union arch_qspinlock *qlock = (union arch_qspinlock *)lock;
+#ifdef CONFIG_PARAVIRT_UNFAIR_LOCKS
+ if (static_key_false(¶virt_unfairlocks_enabled))
+ /*
+ * Need to use atomic operation to get the lock when
+ * lock stealing can happen.
+ */
+ return cmpxchg(&qlock->lock, 0, _QLOCK_LOCKED) == 0;
+#endif
barrier();
ACCESS_ONCE(qlock->lock) = _QLOCK_LOCKED;
barrier();
@@ -71,4 +83,74 @@ static __always_inline int __queue_spin_trylock(struct qspinlock *lock)
#include <asm-generic/qspinlock.h>
+#ifdef CONFIG_PARAVIRT_UNFAIR_LOCKS
+/**
+ * queue_spin_lock_unfair - acquire a queue spinlock unfairly
+ * @lock: Pointer to queue spinlock structure
+ */
+static __always_inline void queue_spin_lock_unfair(struct qspinlock *lock)
+{
+ union arch_qspinlock *qlock = (union arch_qspinlock *)lock;
+
+ if (likely(cmpxchg(&qlock->lock, 0, _QLOCK_LOCKED) == 0))
+ return;
+ /*
+ * Since the lock is now unfair, we should not activate the 2-task
+ * quick spinning code path which disallows lock stealing.
+ */
+ queue_spin_lock_slowpath(lock, -1);
+}
+
+/**
+ * queue_spin_trylock_unfair - try to acquire the queue spinlock unfairly
+ * @lock : Pointer to queue spinlock structure
+ * Return: 1 if lock acquired, 0 if failed
+ */
+static __always_inline int queue_spin_trylock_unfair(struct qspinlock *lock)
+{
+ union arch_qspinlock *qlock = (union arch_qspinlock *)lock;
+
+ if (!qlock->lock && (cmpxchg(&qlock->lock, 0, _QLOCK_LOCKED) == 0))
+ return 1;
+ return 0;
+}
+
+/*
+ * Redefine arch_spin_lock and arch_spin_trylock as inline functions that will
+ * jump to the unfair versions if the static key paravirt_unfairlocks_enabled
+ * is true.
+ */
+#undef arch_spin_lock
+#undef arch_spin_trylock
+#undef arch_spin_lock_flags
+
+/**
+ * arch_spin_lock - acquire a queue spinlock
+ * @lock: Pointer to queue spinlock structure
+ */
+static inline void arch_spin_lock(struct qspinlock *lock)
+{
+ if (static_key_false(¶virt_unfairlocks_enabled))
+ queue_spin_lock_unfair(lock);
+ else
+ queue_spin_lock(lock);
+}
+
+/**
+ * arch_spin_trylock - try to acquire the queue spinlock
+ * @lock : Pointer to queue spinlock structure
+ * Return: 1 if lock acquired, 0 if failed
+ */
+static inline int arch_spin_trylock(struct qspinlock *lock)
+{
+ if (static_key_false(¶virt_unfairlocks_enabled))
+ return queue_spin_trylock_unfair(lock);
+ else
+ return queue_spin_trylock(lock);
+}
+
+#define arch_spin_lock_flags(l, f) arch_spin_lock(l)
+
+#endif /* CONFIG_PARAVIRT_UNFAIR_LOCKS */
+
#endif /* _ASM_X86_QSPINLOCK_H */
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index cb648c8..1107a20 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -88,6 +88,7 @@ obj-$(CONFIG_DEBUG_NMI_SELFTEST) += nmi_selftest.o
obj-$(CONFIG_KVM_GUEST) += kvm.o kvmclock.o
obj-$(CONFIG_PARAVIRT) += paravirt.o paravirt_patch_$(BITS).o
obj-$(CONFIG_PARAVIRT_SPINLOCKS)+= paravirt-spinlocks.o
+obj-$(CONFIG_PARAVIRT_UNFAIR_LOCKS)+= paravirt-spinlocks.o
obj-$(CONFIG_PARAVIRT_CLOCK) += pvclock.o
obj-$(CONFIG_PCSPKR_PLATFORM) += pcspeaker.o
diff --git a/arch/x86/kernel/paravirt-spinlocks.c b/arch/x86/kernel/paravirt-spinlocks.c
index bbb6c73..7dfd02d 100644
--- a/arch/x86/kernel/paravirt-spinlocks.c
+++ b/arch/x86/kernel/paravirt-spinlocks.c
@@ -8,6 +8,7 @@
#include <asm/paravirt.h>
+#ifdef CONFIG_PARAVIRT_SPINLOCKS
struct pv_lock_ops pv_lock_ops = {
#ifdef CONFIG_SMP
.lock_spinning = __PV_IS_CALLEE_SAVE(paravirt_nop),
@@ -18,3 +19,28 @@ EXPORT_SYMBOL(pv_lock_ops);
struct static_key paravirt_ticketlocks_enabled = STATIC_KEY_INIT_FALSE;
EXPORT_SYMBOL(paravirt_ticketlocks_enabled);
+#endif
+
+#ifdef CONFIG_PARAVIRT_UNFAIR_LOCKS
+struct static_key paravirt_unfairlocks_enabled = STATIC_KEY_INIT_FALSE;
+EXPORT_SYMBOL(paravirt_unfairlocks_enabled);
+
+#include <linux/init.h>
+#include <asm/cpufeature.h>
+
+/*
+ * Enable unfair lock only if it is running under a hypervisor
+ */
+static __init int unfair_locks_init_jump(void)
+{
+ if (!boot_cpu_has(X86_FEATURE_HYPERVISOR))
+ return 0;
+
+ static_key_slow_inc(¶virt_unfairlocks_enabled);
+ printk(KERN_INFO "Unfair spinlock enabled\n");
+
+ return 0;
+}
+early_initcall(unfair_locks_init_jump);
+
+#endif
--
1.7.1
^ permalink raw reply related [flat|nested] 109+ messages in thread
* [PATCH v8 06/10] pvqspinlock: Enable lock stealing in queue lock waiters
2014-04-02 13:27 [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support Waiman Long
` (9 preceding siblings ...)
2014-04-02 13:27 ` [PATCH v8 06/10] pvqspinlock: Enable lock stealing in queue lock waiters Waiman Long
@ 2014-04-02 13:27 ` Waiman Long
2014-04-02 13:27 ` [PATCH v8 07/10] pvqspinlock, x86: Rename paravirt_ticketlocks_enabled Waiman Long
` (11 subsequent siblings)
22 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-02 13:27 UTC (permalink / raw)
To: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, Peter Zijlstra
Cc: linux-arch, x86, linux-kernel, virtualization, xen-devel, kvm,
Paolo Bonzini, Konrad Rzeszutek Wilk, Paul E. McKenney,
Rik van Riel, Linus Torvalds, Raghavendra K T, David Vrabel,
Oleg Nesterov, Gleb Natapov, Aswin Chandramouleeswaran,
Scott J Norton, Chegu Vinod, Waiman Long
The simple unfair queue lock cannot completely solve the lock waiter
preemption problem as a preempted CPU at the front of the queue will
block forward progress in all the other CPUs behind it in the queue.
To allow those CPUs to move forward, it is necessary to enable lock
stealing for those lock waiters as well.
This patch enables those lock waiters to try to steal the lock
periodically at a frequency that is inverse algorithmatically
proportional to its distance from the queue head until it reaches a
maximum value.
Enabling those lock waiters to try to steal the lock increases the
cacheline pressure on the lock word. As a result, performance can
suffer on a workload with heavy spinlock contention.
The table below shows the the performance (jobs/minutes) of that
scheme when compared with other kernel flavors at 3000 users of the
AIM7 disk workload on a 4-socket Westmere-EX system.
Kernel disk-xfs JPM disk-ext4 JPM
------ ------------ -------------
ticketlock 5,660,377 1,151,631
qspinlock 5,678,233 2,033,898
simple test-and-set 5,678,233 533,966
simple unfair qspinlock 5,732,484 2,216,749
complex unfair qspinlock 5,625,000 707,547
With heavy spinlock contention, the complex unfair lock is faster
than the simple test-and-set lock, but it is still slower than the
baseline ticketlock.
As for the lock starvation problem, the patch tries to reduce the
chance of this problem by enabling the CPUs at the front of the queue
has a much higher chance of getting the lock than the ones behind. This
should greatly improve the chance of making forward progress in the
queue without unacceptably long delay.
The table below shows the execution times (in ms) of a spinlock
micro-benchmark on the same 4-socket Westmere-EX system.
# of Ticket Fair Unfair simple Unfair complex
tasks lock queue lock queue lock queue lock
------ ------- ---------- ---------- --------------
1 135 135 137 137
2 1045 951 732 696
3 1827 2256 915 1267
4 2689 2880 1377 1695
5 3736 3636 1439 2243
6 4942 4294 1724 2617
7 6304 4976 2001 2776
8 7736 5662 2317 2941
Executing one task per node, the performance data were:
# of Ticket Fair Unfair simple Unfair complex
nodes lock queue lock queue lock queue lock
------ ------- ---------- ---------- --------------
1 135 135 137 137
2 4452 1024 1697 1354
3 10767 14030 2015 2581
4 20835 10740 2732 4653
Signed-off-by: Waiman Long <Waiman.Long@hp.com>
---
kernel/locking/qspinlock.c | 270 +++++++++++++++++++++++++++++++++++++++++++-
1 files changed, 265 insertions(+), 5 deletions(-)
diff --git a/kernel/locking/qspinlock.c b/kernel/locking/qspinlock.c
index cf16bba..527efc3 100644
--- a/kernel/locking/qspinlock.c
+++ b/kernel/locking/qspinlock.c
@@ -86,13 +86,14 @@ enum exitval {
/*
* The queue node structure
- *
- * This structure is essentially the same as the mcs_spinlock structure
- * in mcs_spinlock.h file. It is retained for future extension where new
- * fields may be added.
*/
struct qnode {
u32 qhead; /* Queue head flag */
+#ifdef CONFIG_PARAVIRT_UNFAIR_LOCKS
+ int lsteal_mask; /* Lock stealing frequency mask */
+ u32 prev_qcode; /* Queue code of previous node */
+ struct qnode *qprev; /* Previous queue node addr */
+#endif
struct qnode *next; /* Next queue node addr */
};
@@ -107,6 +108,11 @@ struct qnode_set {
static DEFINE_PER_CPU_ALIGNED(struct qnode_set, qnset) = { { { 0 } }, 0 };
/*
+ * Macro to get queue code from queue spinlock
+ */
+#define queue_get_qcode(lock) qsval_to_qcode(atomic_read(&(lock)->qlcode))
+
+/*
************************************************************************
* The following optimized codes are for architectures that support: *
* 1) Atomic byte and short data write *
@@ -279,6 +285,22 @@ queue_code_xchg(struct qspinlock *lock, u32 *ocode, u32 ncode)
return NORMAL_EXIT;
}
+#define cmpxchg_queue_code cmpxchg_queue_code
+/**
+ * cmpxchg_queue_code - compare and exchange a queue code value in the lock
+ * @lock : Pointer to queue spinlock structure
+ * @ocode: Old queue code value
+ * @ncode: New queue code value
+ * Return: true if compare and exchange successful, false otherwise
+ */
+static inline int
+cmpxchg_queue_code(struct qspinlock *lock, u32 ocode, u32 ncode)
+{
+ union arch_qspinlock *qlock = (union arch_qspinlock *)lock;
+
+ return cmpxchg(&qlock->qcode, (u16)ocode, (u16)ncode) == (u16)ocode;
+}
+
#define queue_spin_trylock_and_clr_qcode queue_spin_trylock_and_clr_qcode
/**
* queue_spin_trylock_and_clr_qcode - Try to lock & clear qcode simultaneously
@@ -449,6 +471,223 @@ queue_code_xchg(struct qspinlock *lock, u32 *ocode, u32 ncode)
}
#endif /* queue_code_xchg */
+#ifndef cmpxchg_queue_code
+/**
+ * cmpxchg_queue_code - compare and exchange a queue code value in the lock
+ * @lock : Pointer to queue spinlock structure
+ * @ocode: Old queue code value
+ * @ncode: New queue code value
+ * Return: true if compare and exchange successful, false otherwise
+ */
+static inline int
+cmpxchg_queue_code(struct qspinlock *lock, u32 ocode, u32 ncode)
+{
+ u32 lockval = atomic_read(lock->qlcode) & _QLOCK_LOCK_MASK;
+
+ ocode |= lockval;
+ ncode |= lockval;
+ return atomic_cmpxchg(&lock->qlcode, ocode, ncode) == ocode;
+}
+#endif /* cmpxchg_queue_code */
+
+/*
+ ************************************************************************
+ * Inline functions for supporting unfair queue lock *
+ ************************************************************************
+ */
+/*
+ * Unfair lock support in a paravirtualized guest
+ *
+ * An unfair lock can be implemented using a simple test-and-set lock like
+ * what is being done in a read-write lock. This simple scheme has 2 major
+ * problems:
+ * 1) It needs constant reading and occasionally writing to the lock word
+ * thus putting a lot of cacheline contention traffic on the affected
+ * cacheline.
+ * 2) Lock starvation is a real possibility especially if the number of
+ * virtual CPUs is large.
+ *
+ * To reduce the undesirable side effects of an unfair lock, the queue
+ * unfair spinlock implements a more elaborate scheme. Lock stealing is
+ * allowed in the following places:
+ * 1) In the spin_lock and spin_trylock functiopns
+ * 2) When spinning in the waiter queue before becoming the queue head
+ *
+ * A lock acquirer has only one chance of stealing the lock in the spin_lock
+ * and spin_trylock function. If the attempt fails for spin_lock, the task
+ * will be queued in the wait queue.
+ *
+ * Even in the wait queue, the task can still attempt to steal the lock
+ * periodically at a frequency about inversely and logarithmically proportional
+ * to its distance from the queue head. In other word, the closer it is to
+ * the queue head, the higher a chance it has of stealing the lock. This
+ * scheme reduce the load on the lock cacheline while trying to maintain
+ * a somewhat FIFO way of getting the lock so as to reduce the chance of lock
+ * starvation.
+ */
+#ifdef CONFIG_PARAVIRT_UNFAIR_LOCKS
+#define DEF_LOOP_CNT(c) int c = 0
+#define INC_LOOP_CNT(c) (c)++
+#define LOOP_CNT(c) c
+#define LSTEAL_MIN (1 << 3)
+#define LSTEAL_MAX (1 << 10)
+#define LSTEAL_MIN_MASK (LSTEAL_MIN - 1)
+#define LSTEAL_MAX_MASK (LSTEAL_MAX - 1)
+
+/**
+ * unfair_init_vars - initialize unfair relevant fields in queue node structure
+ * @node: Current queue node address
+ */
+static void unfair_init_vars(struct qnode *node)
+{
+ node->qprev = NULL;
+ node->prev_qcode = 0;
+ node->lsteal_mask = LSTEAL_MIN_MASK;
+}
+
+/**
+ * unfair_set_vars - set unfair related fields in the queue node structure
+ * @node : Current queue node address
+ * @prev : Previous queue node address
+ * @prev_qcode: Previous qcode value
+ */
+static void
+unfair_set_vars(struct qnode *node, struct qnode *prev, u32 prev_qcode)
+{
+ if (!static_key_false(¶virt_unfairlocks_enabled))
+ return;
+
+ node->qprev = prev;
+ node->prev_qcode = prev_qcode;
+ /*
+ * This node will spin double the number of time of the previous node
+ * before attempting to steal the lock until it reaches a maximum.
+ */
+ node->lsteal_mask = prev->qhead ? LSTEAL_MIN_MASK :
+ (prev->lsteal_mask << 1) + 1;
+ if (node->lsteal_mask > LSTEAL_MAX_MASK)
+ node->lsteal_mask = LSTEAL_MAX_MASK;
+ /* Make sure the new fields are visible to others */
+ smp_wmb();
+}
+
+/**
+ * unfair_check_qcode - check the current to see if it is the last one
+ * and need to be cleared.
+ * @lock : Pointer to queue spinlock structure
+ * @my_qcode: My queue code value to be checked again
+ * Return : Either RELEASE_NODE or NOTIFY_NEXT
+ */
+static enum exitval unfair_check_qcode(struct qspinlock *lock, u32 my_qcode)
+{
+ if (!static_key_false(¶virt_unfairlocks_enabled))
+ return NOTIFY_NEXT;
+
+ /*
+ * Try to clear the current queue code if it match my_qcode
+ */
+ if ((queue_get_qcode(lock) == my_qcode) &&
+ cmpxchg_queue_code(lock, my_qcode, 0))
+ return RELEASE_NODE;
+ return NOTIFY_NEXT;
+}
+
+/**
+ * unfair_get_lock - try to steal the lock periodically
+ * @lock : Pointer to queue spinlock structure
+ * @node : Current queue node address
+ * @my_qcode: My queue code value
+ * @count : Loop count
+ * Return : NORMAL_EXIT, RELEASE_NODE or NOTIFY_NEXT
+ */
+static enum exitval unfair_get_lock(struct qspinlock *lock, struct qnode *node,
+ u32 my_qcode, int count)
+{
+ u32 pqcode;
+ int qhead;
+ struct qnode *next;
+
+ if (!static_key_false(¶virt_unfairlocks_enabled) ||
+ ((count & node->lsteal_mask) != node->lsteal_mask))
+ return NORMAL_EXIT;
+
+ if (!queue_spin_trylock_unfair(lock)) {
+ /*
+ * Lock stealing fails, re-adjust the lsteal mask.
+ */
+ struct qnode *prev = node->qprev;
+
+ node->lsteal_mask = prev->qhead ? LSTEAL_MIN_MASK :
+ (prev->lsteal_mask << 1) + 1;
+ if (node->lsteal_mask > LSTEAL_MAX_MASK)
+ node->lsteal_mask = LSTEAL_MAX_MASK;
+ return NORMAL_EXIT;
+ }
+
+ /*
+ * Have stolen the lock, need to remove itself from the wait queue
+ * 1) If it is at the end of the queue, change the qcode in the lock
+ * word to the one before it.
+ * 2) Change the next pointer in the previous queue node to point
+ * to the next one in queue or NULL if it is at the end of queue.
+ * 3) If a next node is present, copy the prev_qcode and qprev values
+ * to the next node.
+ */
+ qhead = ACCESS_ONCE(node->qhead);
+ pqcode = qhead ? 0 : node->prev_qcode;
+
+ if ((queue_get_qcode(lock) == my_qcode) &&
+ cmpxchg_queue_code(lock, my_qcode, pqcode)) {
+ /*
+ * Successfully change the qcode back to the previous one.
+ * Now need to clear the next pointer in the previous node
+ * only if it contains my queue node address. Whether the
+ * cmpxchg() call below fails or succeeds doesn't really
+ * matter.
+ */
+ (void)cmpxchg(&node->qprev->next, node, NULL);
+ return RELEASE_NODE;
+ }
+
+ next = ACCESS_ONCE(node->next);
+ if (unlikely(!next))
+ /* Wait until the next pointer is set */
+ do {
+ arch_mutex_cpu_relax();
+ } while (!(next = ACCESS_ONCE(node->next)));
+
+ if (!qhead) {
+ /*
+ * Change the node data only if it is not the queue head
+ */
+ ACCESS_ONCE(node->qprev->next) = next;
+ ACCESS_ONCE(next->qprev) = node->qprev;
+ ACCESS_ONCE(next->prev_qcode) = node->prev_qcode;
+
+ /*
+ * Make sure all the new node information are visible
+ * before proceeding.
+ */
+ smp_wmb();
+ return RELEASE_NODE;
+ }
+ return NOTIFY_NEXT;
+}
+
+#else /* CONFIG_PARAVIRT_UNFAIR_LOCKS */
+#define DEF_LOOP_CNT(c)
+#define INC_LOOP_CNT(c)
+#define LOOP_CNT(c) 0
+
+static void unfair_init_vars(struct qnode *node) {}
+static void unfair_set_vars(struct qnode *node, struct qnode *prev,
+ u32 prev_qcode) {}
+static enum exitval unfair_get_lock(struct qspinlock *lock, struct qnode *node,
+ u32 my_qcode, int count) { return NORMAL_EXIT; }
+static enum exitval unfair_check_qcode(struct qspinlock *lock, u32 my_qcode)
+ { return NORMAL_EXIT; }
+#endif /* CONFIG_PARAVIRT_UNFAIR_LOCKS */
+
/*
************************************************************************
* Other inline functions needed by the queue_spin_lock_slowpath() *
@@ -525,13 +764,22 @@ static noinline void queue_spin_lock_slowerpath(struct qspinlock *lock,
* and set up the "next" fields of the that node.
*/
struct qnode *prev = xlate_qcode(prev_qcode);
+ DEF_LOOP_CNT(cnt);
+ unfair_set_vars(node, prev, prev_qcode);
ACCESS_ONCE(prev->next) = node;
/*
* Wait until the queue head flag is on
*/
do {
+ INC_LOOP_CNT(cnt);
arch_mutex_cpu_relax();
+ exitval = unfair_get_lock(lock, node, my_qcode,
+ LOOP_CNT(cnt));
+ if (unlikely(exitval == RELEASE_NODE))
+ goto release_node;
+ else if (unlikely(exitval == NOTIFY_NEXT))
+ goto notify_next;
} while (!ACCESS_ONCE(node->qhead));
}
@@ -540,7 +788,6 @@ static noinline void queue_spin_lock_slowerpath(struct qspinlock *lock,
*/
for (;; arch_mutex_cpu_relax()) {
qsval = atomic_read(&lock->qlcode);
- next = ACCESS_ONCE(node->next);
if (qsval & _QLOCK_LOCK_MASK)
continue; /* Lock not available yet */
@@ -550,6 +797,18 @@ static noinline void queue_spin_lock_slowerpath(struct qspinlock *lock,
*/
if (unlikely(!__queue_spin_trylock(lock)))
continue; /* Trylock fails! */
+
+ next = ACCESS_ONCE(node->next);
+ /*
+ * The unfair lock stealing code may cause the
+ * next node, whose qcode is in the lock, to get
+ * the lock first and thus don't need to be notify.
+ * Need to recheck the qcode value in the lock.
+ */
+ if (unlikely(unfair_check_qcode(lock, my_qcode)
+ == RELEASE_NODE))
+ goto release_node;
+
if (likely(next))
goto set_qhead;
else
@@ -611,6 +870,7 @@ void queue_spin_lock_slowpath(struct qspinlock *lock, int qsval)
*/
node->qhead = false;
node->next = NULL;
+ unfair_init_vars(node);
/*
* The lock may be available at this point, try again if no task was
--
1.7.1
^ permalink raw reply related [flat|nested] 109+ messages in thread
* [PATCH v8 06/10] pvqspinlock: Enable lock stealing in queue lock waiters
2014-04-02 13:27 [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support Waiman Long
` (8 preceding siblings ...)
2014-04-02 13:27 ` Waiman Long
@ 2014-04-02 13:27 ` Waiman Long
2014-04-02 13:27 ` Waiman Long
` (12 subsequent siblings)
22 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-02 13:27 UTC (permalink / raw)
To: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, Peter Zijlstra
Cc: linux-arch, Waiman Long, Raghavendra K T, Gleb Natapov, kvm,
Aswin Chandramouleeswaran, Scott J Norton, x86, Paolo Bonzini,
linux-kernel, virtualization, Chegu Vinod, David Vrabel,
Oleg Nesterov, xen-devel, Paul E. McKenney, Linus Torvalds
The simple unfair queue lock cannot completely solve the lock waiter
preemption problem as a preempted CPU at the front of the queue will
block forward progress in all the other CPUs behind it in the queue.
To allow those CPUs to move forward, it is necessary to enable lock
stealing for those lock waiters as well.
This patch enables those lock waiters to try to steal the lock
periodically at a frequency that is inverse algorithmatically
proportional to its distance from the queue head until it reaches a
maximum value.
Enabling those lock waiters to try to steal the lock increases the
cacheline pressure on the lock word. As a result, performance can
suffer on a workload with heavy spinlock contention.
The table below shows the the performance (jobs/minutes) of that
scheme when compared with other kernel flavors at 3000 users of the
AIM7 disk workload on a 4-socket Westmere-EX system.
Kernel disk-xfs JPM disk-ext4 JPM
------ ------------ -------------
ticketlock 5,660,377 1,151,631
qspinlock 5,678,233 2,033,898
simple test-and-set 5,678,233 533,966
simple unfair qspinlock 5,732,484 2,216,749
complex unfair qspinlock 5,625,000 707,547
With heavy spinlock contention, the complex unfair lock is faster
than the simple test-and-set lock, but it is still slower than the
baseline ticketlock.
As for the lock starvation problem, the patch tries to reduce the
chance of this problem by enabling the CPUs at the front of the queue
has a much higher chance of getting the lock than the ones behind. This
should greatly improve the chance of making forward progress in the
queue without unacceptably long delay.
The table below shows the execution times (in ms) of a spinlock
micro-benchmark on the same 4-socket Westmere-EX system.
# of Ticket Fair Unfair simple Unfair complex
tasks lock queue lock queue lock queue lock
------ ------- ---------- ---------- --------------
1 135 135 137 137
2 1045 951 732 696
3 1827 2256 915 1267
4 2689 2880 1377 1695
5 3736 3636 1439 2243
6 4942 4294 1724 2617
7 6304 4976 2001 2776
8 7736 5662 2317 2941
Executing one task per node, the performance data were:
# of Ticket Fair Unfair simple Unfair complex
nodes lock queue lock queue lock queue lock
------ ------- ---------- ---------- --------------
1 135 135 137 137
2 4452 1024 1697 1354
3 10767 14030 2015 2581
4 20835 10740 2732 4653
Signed-off-by: Waiman Long <Waiman.Long@hp.com>
---
kernel/locking/qspinlock.c | 270 +++++++++++++++++++++++++++++++++++++++++++-
1 files changed, 265 insertions(+), 5 deletions(-)
diff --git a/kernel/locking/qspinlock.c b/kernel/locking/qspinlock.c
index cf16bba..527efc3 100644
--- a/kernel/locking/qspinlock.c
+++ b/kernel/locking/qspinlock.c
@@ -86,13 +86,14 @@ enum exitval {
/*
* The queue node structure
- *
- * This structure is essentially the same as the mcs_spinlock structure
- * in mcs_spinlock.h file. It is retained for future extension where new
- * fields may be added.
*/
struct qnode {
u32 qhead; /* Queue head flag */
+#ifdef CONFIG_PARAVIRT_UNFAIR_LOCKS
+ int lsteal_mask; /* Lock stealing frequency mask */
+ u32 prev_qcode; /* Queue code of previous node */
+ struct qnode *qprev; /* Previous queue node addr */
+#endif
struct qnode *next; /* Next queue node addr */
};
@@ -107,6 +108,11 @@ struct qnode_set {
static DEFINE_PER_CPU_ALIGNED(struct qnode_set, qnset) = { { { 0 } }, 0 };
/*
+ * Macro to get queue code from queue spinlock
+ */
+#define queue_get_qcode(lock) qsval_to_qcode(atomic_read(&(lock)->qlcode))
+
+/*
************************************************************************
* The following optimized codes are for architectures that support: *
* 1) Atomic byte and short data write *
@@ -279,6 +285,22 @@ queue_code_xchg(struct qspinlock *lock, u32 *ocode, u32 ncode)
return NORMAL_EXIT;
}
+#define cmpxchg_queue_code cmpxchg_queue_code
+/**
+ * cmpxchg_queue_code - compare and exchange a queue code value in the lock
+ * @lock : Pointer to queue spinlock structure
+ * @ocode: Old queue code value
+ * @ncode: New queue code value
+ * Return: true if compare and exchange successful, false otherwise
+ */
+static inline int
+cmpxchg_queue_code(struct qspinlock *lock, u32 ocode, u32 ncode)
+{
+ union arch_qspinlock *qlock = (union arch_qspinlock *)lock;
+
+ return cmpxchg(&qlock->qcode, (u16)ocode, (u16)ncode) == (u16)ocode;
+}
+
#define queue_spin_trylock_and_clr_qcode queue_spin_trylock_and_clr_qcode
/**
* queue_spin_trylock_and_clr_qcode - Try to lock & clear qcode simultaneously
@@ -449,6 +471,223 @@ queue_code_xchg(struct qspinlock *lock, u32 *ocode, u32 ncode)
}
#endif /* queue_code_xchg */
+#ifndef cmpxchg_queue_code
+/**
+ * cmpxchg_queue_code - compare and exchange a queue code value in the lock
+ * @lock : Pointer to queue spinlock structure
+ * @ocode: Old queue code value
+ * @ncode: New queue code value
+ * Return: true if compare and exchange successful, false otherwise
+ */
+static inline int
+cmpxchg_queue_code(struct qspinlock *lock, u32 ocode, u32 ncode)
+{
+ u32 lockval = atomic_read(lock->qlcode) & _QLOCK_LOCK_MASK;
+
+ ocode |= lockval;
+ ncode |= lockval;
+ return atomic_cmpxchg(&lock->qlcode, ocode, ncode) == ocode;
+}
+#endif /* cmpxchg_queue_code */
+
+/*
+ ************************************************************************
+ * Inline functions for supporting unfair queue lock *
+ ************************************************************************
+ */
+/*
+ * Unfair lock support in a paravirtualized guest
+ *
+ * An unfair lock can be implemented using a simple test-and-set lock like
+ * what is being done in a read-write lock. This simple scheme has 2 major
+ * problems:
+ * 1) It needs constant reading and occasionally writing to the lock word
+ * thus putting a lot of cacheline contention traffic on the affected
+ * cacheline.
+ * 2) Lock starvation is a real possibility especially if the number of
+ * virtual CPUs is large.
+ *
+ * To reduce the undesirable side effects of an unfair lock, the queue
+ * unfair spinlock implements a more elaborate scheme. Lock stealing is
+ * allowed in the following places:
+ * 1) In the spin_lock and spin_trylock functiopns
+ * 2) When spinning in the waiter queue before becoming the queue head
+ *
+ * A lock acquirer has only one chance of stealing the lock in the spin_lock
+ * and spin_trylock function. If the attempt fails for spin_lock, the task
+ * will be queued in the wait queue.
+ *
+ * Even in the wait queue, the task can still attempt to steal the lock
+ * periodically at a frequency about inversely and logarithmically proportional
+ * to its distance from the queue head. In other word, the closer it is to
+ * the queue head, the higher a chance it has of stealing the lock. This
+ * scheme reduce the load on the lock cacheline while trying to maintain
+ * a somewhat FIFO way of getting the lock so as to reduce the chance of lock
+ * starvation.
+ */
+#ifdef CONFIG_PARAVIRT_UNFAIR_LOCKS
+#define DEF_LOOP_CNT(c) int c = 0
+#define INC_LOOP_CNT(c) (c)++
+#define LOOP_CNT(c) c
+#define LSTEAL_MIN (1 << 3)
+#define LSTEAL_MAX (1 << 10)
+#define LSTEAL_MIN_MASK (LSTEAL_MIN - 1)
+#define LSTEAL_MAX_MASK (LSTEAL_MAX - 1)
+
+/**
+ * unfair_init_vars - initialize unfair relevant fields in queue node structure
+ * @node: Current queue node address
+ */
+static void unfair_init_vars(struct qnode *node)
+{
+ node->qprev = NULL;
+ node->prev_qcode = 0;
+ node->lsteal_mask = LSTEAL_MIN_MASK;
+}
+
+/**
+ * unfair_set_vars - set unfair related fields in the queue node structure
+ * @node : Current queue node address
+ * @prev : Previous queue node address
+ * @prev_qcode: Previous qcode value
+ */
+static void
+unfair_set_vars(struct qnode *node, struct qnode *prev, u32 prev_qcode)
+{
+ if (!static_key_false(¶virt_unfairlocks_enabled))
+ return;
+
+ node->qprev = prev;
+ node->prev_qcode = prev_qcode;
+ /*
+ * This node will spin double the number of time of the previous node
+ * before attempting to steal the lock until it reaches a maximum.
+ */
+ node->lsteal_mask = prev->qhead ? LSTEAL_MIN_MASK :
+ (prev->lsteal_mask << 1) + 1;
+ if (node->lsteal_mask > LSTEAL_MAX_MASK)
+ node->lsteal_mask = LSTEAL_MAX_MASK;
+ /* Make sure the new fields are visible to others */
+ smp_wmb();
+}
+
+/**
+ * unfair_check_qcode - check the current to see if it is the last one
+ * and need to be cleared.
+ * @lock : Pointer to queue spinlock structure
+ * @my_qcode: My queue code value to be checked again
+ * Return : Either RELEASE_NODE or NOTIFY_NEXT
+ */
+static enum exitval unfair_check_qcode(struct qspinlock *lock, u32 my_qcode)
+{
+ if (!static_key_false(¶virt_unfairlocks_enabled))
+ return NOTIFY_NEXT;
+
+ /*
+ * Try to clear the current queue code if it match my_qcode
+ */
+ if ((queue_get_qcode(lock) == my_qcode) &&
+ cmpxchg_queue_code(lock, my_qcode, 0))
+ return RELEASE_NODE;
+ return NOTIFY_NEXT;
+}
+
+/**
+ * unfair_get_lock - try to steal the lock periodically
+ * @lock : Pointer to queue spinlock structure
+ * @node : Current queue node address
+ * @my_qcode: My queue code value
+ * @count : Loop count
+ * Return : NORMAL_EXIT, RELEASE_NODE or NOTIFY_NEXT
+ */
+static enum exitval unfair_get_lock(struct qspinlock *lock, struct qnode *node,
+ u32 my_qcode, int count)
+{
+ u32 pqcode;
+ int qhead;
+ struct qnode *next;
+
+ if (!static_key_false(¶virt_unfairlocks_enabled) ||
+ ((count & node->lsteal_mask) != node->lsteal_mask))
+ return NORMAL_EXIT;
+
+ if (!queue_spin_trylock_unfair(lock)) {
+ /*
+ * Lock stealing fails, re-adjust the lsteal mask.
+ */
+ struct qnode *prev = node->qprev;
+
+ node->lsteal_mask = prev->qhead ? LSTEAL_MIN_MASK :
+ (prev->lsteal_mask << 1) + 1;
+ if (node->lsteal_mask > LSTEAL_MAX_MASK)
+ node->lsteal_mask = LSTEAL_MAX_MASK;
+ return NORMAL_EXIT;
+ }
+
+ /*
+ * Have stolen the lock, need to remove itself from the wait queue
+ * 1) If it is at the end of the queue, change the qcode in the lock
+ * word to the one before it.
+ * 2) Change the next pointer in the previous queue node to point
+ * to the next one in queue or NULL if it is at the end of queue.
+ * 3) If a next node is present, copy the prev_qcode and qprev values
+ * to the next node.
+ */
+ qhead = ACCESS_ONCE(node->qhead);
+ pqcode = qhead ? 0 : node->prev_qcode;
+
+ if ((queue_get_qcode(lock) == my_qcode) &&
+ cmpxchg_queue_code(lock, my_qcode, pqcode)) {
+ /*
+ * Successfully change the qcode back to the previous one.
+ * Now need to clear the next pointer in the previous node
+ * only if it contains my queue node address. Whether the
+ * cmpxchg() call below fails or succeeds doesn't really
+ * matter.
+ */
+ (void)cmpxchg(&node->qprev->next, node, NULL);
+ return RELEASE_NODE;
+ }
+
+ next = ACCESS_ONCE(node->next);
+ if (unlikely(!next))
+ /* Wait until the next pointer is set */
+ do {
+ arch_mutex_cpu_relax();
+ } while (!(next = ACCESS_ONCE(node->next)));
+
+ if (!qhead) {
+ /*
+ * Change the node data only if it is not the queue head
+ */
+ ACCESS_ONCE(node->qprev->next) = next;
+ ACCESS_ONCE(next->qprev) = node->qprev;
+ ACCESS_ONCE(next->prev_qcode) = node->prev_qcode;
+
+ /*
+ * Make sure all the new node information are visible
+ * before proceeding.
+ */
+ smp_wmb();
+ return RELEASE_NODE;
+ }
+ return NOTIFY_NEXT;
+}
+
+#else /* CONFIG_PARAVIRT_UNFAIR_LOCKS */
+#define DEF_LOOP_CNT(c)
+#define INC_LOOP_CNT(c)
+#define LOOP_CNT(c) 0
+
+static void unfair_init_vars(struct qnode *node) {}
+static void unfair_set_vars(struct qnode *node, struct qnode *prev,
+ u32 prev_qcode) {}
+static enum exitval unfair_get_lock(struct qspinlock *lock, struct qnode *node,
+ u32 my_qcode, int count) { return NORMAL_EXIT; }
+static enum exitval unfair_check_qcode(struct qspinlock *lock, u32 my_qcode)
+ { return NORMAL_EXIT; }
+#endif /* CONFIG_PARAVIRT_UNFAIR_LOCKS */
+
/*
************************************************************************
* Other inline functions needed by the queue_spin_lock_slowpath() *
@@ -525,13 +764,22 @@ static noinline void queue_spin_lock_slowerpath(struct qspinlock *lock,
* and set up the "next" fields of the that node.
*/
struct qnode *prev = xlate_qcode(prev_qcode);
+ DEF_LOOP_CNT(cnt);
+ unfair_set_vars(node, prev, prev_qcode);
ACCESS_ONCE(prev->next) = node;
/*
* Wait until the queue head flag is on
*/
do {
+ INC_LOOP_CNT(cnt);
arch_mutex_cpu_relax();
+ exitval = unfair_get_lock(lock, node, my_qcode,
+ LOOP_CNT(cnt));
+ if (unlikely(exitval == RELEASE_NODE))
+ goto release_node;
+ else if (unlikely(exitval == NOTIFY_NEXT))
+ goto notify_next;
} while (!ACCESS_ONCE(node->qhead));
}
@@ -540,7 +788,6 @@ static noinline void queue_spin_lock_slowerpath(struct qspinlock *lock,
*/
for (;; arch_mutex_cpu_relax()) {
qsval = atomic_read(&lock->qlcode);
- next = ACCESS_ONCE(node->next);
if (qsval & _QLOCK_LOCK_MASK)
continue; /* Lock not available yet */
@@ -550,6 +797,18 @@ static noinline void queue_spin_lock_slowerpath(struct qspinlock *lock,
*/
if (unlikely(!__queue_spin_trylock(lock)))
continue; /* Trylock fails! */
+
+ next = ACCESS_ONCE(node->next);
+ /*
+ * The unfair lock stealing code may cause the
+ * next node, whose qcode is in the lock, to get
+ * the lock first and thus don't need to be notify.
+ * Need to recheck the qcode value in the lock.
+ */
+ if (unlikely(unfair_check_qcode(lock, my_qcode)
+ == RELEASE_NODE))
+ goto release_node;
+
if (likely(next))
goto set_qhead;
else
@@ -611,6 +870,7 @@ void queue_spin_lock_slowpath(struct qspinlock *lock, int qsval)
*/
node->qhead = false;
node->next = NULL;
+ unfair_init_vars(node);
/*
* The lock may be available at this point, try again if no task was
--
1.7.1
^ permalink raw reply related [flat|nested] 109+ messages in thread
* [PATCH v8 07/10] pvqspinlock, x86: Rename paravirt_ticketlocks_enabled
2014-04-02 13:27 [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support Waiman Long
` (10 preceding siblings ...)
2014-04-02 13:27 ` Waiman Long
@ 2014-04-02 13:27 ` Waiman Long
2014-04-02 13:27 ` Waiman Long
` (10 subsequent siblings)
22 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-02 13:27 UTC (permalink / raw)
To: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, Peter Zijlstra
Cc: linux-arch, x86, linux-kernel, virtualization, xen-devel, kvm,
Paolo Bonzini, Konrad Rzeszutek Wilk, Paul E. McKenney,
Rik van Riel, Linus Torvalds, Raghavendra K T, David Vrabel,
Oleg Nesterov, Gleb Natapov, Aswin Chandramouleeswaran,
Scott J Norton, Chegu Vinod, Waiman Long
This patch renames the paravirt_ticketlocks_enabled static key to a
more generic paravirt_spinlocks_enabled name.
Signed-off-by: Waiman Long <Waiman.Long@hp.com>
---
arch/x86/include/asm/spinlock.h | 4 ++--
arch/x86/kernel/kvm.c | 2 +-
arch/x86/kernel/paravirt-spinlocks.c | 4 ++--
arch/x86/xen/spinlock.c | 2 +-
4 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/arch/x86/include/asm/spinlock.h b/arch/x86/include/asm/spinlock.h
index 958d20f..428d0d1 100644
--- a/arch/x86/include/asm/spinlock.h
+++ b/arch/x86/include/asm/spinlock.h
@@ -39,7 +39,7 @@
/* How long a lock should spin before we consider blocking */
#define SPIN_THRESHOLD (1 << 15)
-extern struct static_key paravirt_ticketlocks_enabled;
+extern struct static_key paravirt_spinlocks_enabled;
static __always_inline bool static_key_false(struct static_key *key);
#ifdef CONFIG_QUEUE_SPINLOCK
@@ -150,7 +150,7 @@ static inline void __ticket_unlock_slowpath(arch_spinlock_t *lock,
static __always_inline void arch_spin_unlock(arch_spinlock_t *lock)
{
if (TICKET_SLOWPATH_FLAG &&
- static_key_false(¶virt_ticketlocks_enabled)) {
+ static_key_false(¶virt_spinlocks_enabled)) {
arch_spinlock_t prev;
prev = *lock;
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index 713f1b3..8e646a7 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -818,7 +818,7 @@ static __init int kvm_spinlock_init_jump(void)
if (!kvm_para_has_feature(KVM_FEATURE_PV_UNHALT))
return 0;
- static_key_slow_inc(¶virt_ticketlocks_enabled);
+ static_key_slow_inc(¶virt_spinlocks_enabled);
printk(KERN_INFO "KVM setup paravirtual spinlock\n");
return 0;
diff --git a/arch/x86/kernel/paravirt-spinlocks.c b/arch/x86/kernel/paravirt-spinlocks.c
index 7dfd02d..6d36731 100644
--- a/arch/x86/kernel/paravirt-spinlocks.c
+++ b/arch/x86/kernel/paravirt-spinlocks.c
@@ -17,8 +17,8 @@ struct pv_lock_ops pv_lock_ops = {
};
EXPORT_SYMBOL(pv_lock_ops);
-struct static_key paravirt_ticketlocks_enabled = STATIC_KEY_INIT_FALSE;
-EXPORT_SYMBOL(paravirt_ticketlocks_enabled);
+struct static_key paravirt_spinlocks_enabled = STATIC_KEY_INIT_FALSE;
+EXPORT_SYMBOL(paravirt_spinlocks_enabled);
#endif
#ifdef CONFIG_PARAVIRT_UNFAIR_LOCKS
diff --git a/arch/x86/xen/spinlock.c b/arch/x86/xen/spinlock.c
index 581521c..06f4a64 100644
--- a/arch/x86/xen/spinlock.c
+++ b/arch/x86/xen/spinlock.c
@@ -290,7 +290,7 @@ static __init int xen_init_spinlocks_jump(void)
if (!xen_pvspin)
return 0;
- static_key_slow_inc(¶virt_ticketlocks_enabled);
+ static_key_slow_inc(¶virt_spinlocks_enabled);
return 0;
}
early_initcall(xen_init_spinlocks_jump);
--
1.7.1
^ permalink raw reply related [flat|nested] 109+ messages in thread
* [PATCH v8 07/10] pvqspinlock, x86: Rename paravirt_ticketlocks_enabled
2014-04-02 13:27 [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support Waiman Long
` (11 preceding siblings ...)
2014-04-02 13:27 ` [PATCH v8 07/10] pvqspinlock, x86: Rename paravirt_ticketlocks_enabled Waiman Long
@ 2014-04-02 13:27 ` Waiman Long
2014-04-02 13:27 ` [PATCH v8 08/10] pvqspinlock, x86: Add qspinlock para-virtualization support Waiman Long
` (9 subsequent siblings)
22 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-02 13:27 UTC (permalink / raw)
To: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, Peter Zijlstra
Cc: linux-arch, Waiman Long, Raghavendra K T, Gleb Natapov, kvm,
Aswin Chandramouleeswaran, Scott J Norton, x86, Paolo Bonzini,
linux-kernel, virtualization, Chegu Vinod, David Vrabel,
Oleg Nesterov, xen-devel, Paul E. McKenney, Linus Torvalds
This patch renames the paravirt_ticketlocks_enabled static key to a
more generic paravirt_spinlocks_enabled name.
Signed-off-by: Waiman Long <Waiman.Long@hp.com>
---
arch/x86/include/asm/spinlock.h | 4 ++--
arch/x86/kernel/kvm.c | 2 +-
arch/x86/kernel/paravirt-spinlocks.c | 4 ++--
arch/x86/xen/spinlock.c | 2 +-
4 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/arch/x86/include/asm/spinlock.h b/arch/x86/include/asm/spinlock.h
index 958d20f..428d0d1 100644
--- a/arch/x86/include/asm/spinlock.h
+++ b/arch/x86/include/asm/spinlock.h
@@ -39,7 +39,7 @@
/* How long a lock should spin before we consider blocking */
#define SPIN_THRESHOLD (1 << 15)
-extern struct static_key paravirt_ticketlocks_enabled;
+extern struct static_key paravirt_spinlocks_enabled;
static __always_inline bool static_key_false(struct static_key *key);
#ifdef CONFIG_QUEUE_SPINLOCK
@@ -150,7 +150,7 @@ static inline void __ticket_unlock_slowpath(arch_spinlock_t *lock,
static __always_inline void arch_spin_unlock(arch_spinlock_t *lock)
{
if (TICKET_SLOWPATH_FLAG &&
- static_key_false(¶virt_ticketlocks_enabled)) {
+ static_key_false(¶virt_spinlocks_enabled)) {
arch_spinlock_t prev;
prev = *lock;
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index 713f1b3..8e646a7 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -818,7 +818,7 @@ static __init int kvm_spinlock_init_jump(void)
if (!kvm_para_has_feature(KVM_FEATURE_PV_UNHALT))
return 0;
- static_key_slow_inc(¶virt_ticketlocks_enabled);
+ static_key_slow_inc(¶virt_spinlocks_enabled);
printk(KERN_INFO "KVM setup paravirtual spinlock\n");
return 0;
diff --git a/arch/x86/kernel/paravirt-spinlocks.c b/arch/x86/kernel/paravirt-spinlocks.c
index 7dfd02d..6d36731 100644
--- a/arch/x86/kernel/paravirt-spinlocks.c
+++ b/arch/x86/kernel/paravirt-spinlocks.c
@@ -17,8 +17,8 @@ struct pv_lock_ops pv_lock_ops = {
};
EXPORT_SYMBOL(pv_lock_ops);
-struct static_key paravirt_ticketlocks_enabled = STATIC_KEY_INIT_FALSE;
-EXPORT_SYMBOL(paravirt_ticketlocks_enabled);
+struct static_key paravirt_spinlocks_enabled = STATIC_KEY_INIT_FALSE;
+EXPORT_SYMBOL(paravirt_spinlocks_enabled);
#endif
#ifdef CONFIG_PARAVIRT_UNFAIR_LOCKS
diff --git a/arch/x86/xen/spinlock.c b/arch/x86/xen/spinlock.c
index 581521c..06f4a64 100644
--- a/arch/x86/xen/spinlock.c
+++ b/arch/x86/xen/spinlock.c
@@ -290,7 +290,7 @@ static __init int xen_init_spinlocks_jump(void)
if (!xen_pvspin)
return 0;
- static_key_slow_inc(¶virt_ticketlocks_enabled);
+ static_key_slow_inc(¶virt_spinlocks_enabled);
return 0;
}
early_initcall(xen_init_spinlocks_jump);
--
1.7.1
^ permalink raw reply related [flat|nested] 109+ messages in thread
* [PATCH v8 08/10] pvqspinlock, x86: Add qspinlock para-virtualization support
2014-04-02 13:27 [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support Waiman Long
` (12 preceding siblings ...)
2014-04-02 13:27 ` Waiman Long
@ 2014-04-02 13:27 ` Waiman Long
2014-04-02 13:27 ` Waiman Long
` (8 subsequent siblings)
22 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-02 13:27 UTC (permalink / raw)
To: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, Peter Zijlstra
Cc: linux-arch, x86, linux-kernel, virtualization, xen-devel, kvm,
Paolo Bonzini, Konrad Rzeszutek Wilk, Paul E. McKenney,
Rik van Riel, Linus Torvalds, Raghavendra K T, David Vrabel,
Oleg Nesterov, Gleb Natapov, Aswin Chandramouleeswaran,
Scott J Norton, Chegu Vinod, Waiman Long
This patch adds para-virtualization support to the queue spinlock in
the same way as was done in the PV ticket lock code. In essence, the
lock waiters will spin for a specified number of times (QSPIN_THRESHOLD
= 2^14) and then halted itself. The queue head waiter, unlike the
other waiter, will spins 2*QSPIN_THRESHOLD times before halting
itself. Before being halted, the queue head waiter will set a flag
(_QLOCK_LOCKED_SLOWPATH) in the lock byte to indicate that the unlock
slowpath has to be invoked.
In the unlock slowpath, the current lock holder will find the queue
head by following the previous node pointer links stored in the queue
node structure until it finds one that has the qhead flag turned
on. It then attempt to kick the CPU of the queue head.
After the queue head acquired the lock, it will also check the status
of the next node and set _QLOCK_LOCKED_SLOWPATH if it has been halted.
Enabling the PV code does have a performance impact on spinlock
acquisitions and releases. The following table shows the execution
time (in ms) of a spinlock micro-benchmark that does lock/unlock
operations 5M times for each task versus the number of contending
tasks on a Westmere-EX system.
# of Ticket lock Queue lock
tasks PV off/PV on/%Change PV off/PV on/%Change
------ -------------------- ---------------------
1 135/ 179/+33% 137/ 169/+23%
2 1045/ 1103/ +6% 964/ 1137/+18%
3 1827/ 2683/+47% 2228/ 2537/+14%
4 2689/ 4191/+56% 2769/ 3097/+12%
5 3736/ 5830/+56% 3447/ 3568/ +4%
6 4942/ 7609/+54% 4169/ 4292/ +3%
7 6304/ 9570/+52% 4898/ 5021/ +3%
8 7736/11323/+46% 5620/ 5717/ +2%
The big reduction in performance with 2 contending tasks for the PV
queue spinlock is due to the switching off of the optimized code path
when PV spinlock code is turned on.
It can be seen that the ticket lock PV code has a fairly big decrease
in performance when there are 3 or more contending tasks. The queue
spinlock PV code, on the other hand, only has a relatively minor drop
in performance for 3 or more contending tasks. At 5 or more contending
tasks, there is practically no difference in performance. When coupled
with unfair lock, the queue spinlock can be much faster than the PV
ticket lock.
When both the unfair lock and PV spinlock features is turned on,
lock stealing will still be allowed in the fastpath, but not in
the slowpath.
Signed-off-by: Waiman Long <Waiman.Long@hp.com>
---
arch/x86/include/asm/paravirt.h | 17 ++-
arch/x86/include/asm/paravirt_types.h | 16 ++
arch/x86/include/asm/pvqspinlock.h | 260 +++++++++++++++++++++++++++++++++
arch/x86/include/asm/qspinlock.h | 35 +++++
arch/x86/kernel/paravirt-spinlocks.c | 6 +
kernel/locking/qspinlock.c | 138 +++++++++++++++++-
6 files changed, 465 insertions(+), 7 deletions(-)
create mode 100644 arch/x86/include/asm/pvqspinlock.h
diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index cd6e161..a35cd02 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -711,7 +711,22 @@ static inline void __set_fixmap(unsigned /* enum fixed_addresses */ idx,
}
#if defined(CONFIG_SMP) && defined(CONFIG_PARAVIRT_SPINLOCKS)
+#ifdef CONFIG_QUEUE_SPINLOCK
+static __always_inline void __queue_kick_cpu(int cpu)
+{
+ PVOP_VCALL1(pv_lock_ops.kick_cpu, cpu);
+}
+
+static __always_inline void __queue_hibernate(enum pv_lock_stats type)
+{
+ PVOP_VCALL1(pv_lock_ops.hibernate, type);
+}
+static __always_inline void __queue_lockstat(enum pv_lock_stats type)
+{
+ PVOP_VCALL1(pv_lock_ops.lockstat, type);
+}
+#else
static __always_inline void __ticket_lock_spinning(struct arch_spinlock *lock,
__ticket_t ticket)
{
@@ -723,7 +738,7 @@ static __always_inline void __ticket_unlock_kick(struct arch_spinlock *lock,
{
PVOP_VCALL2(pv_lock_ops.unlock_kick, lock, ticket);
}
-
+#endif
#endif
#ifdef CONFIG_X86_32
diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
index 7549b8b..a8564b9 100644
--- a/arch/x86/include/asm/paravirt_types.h
+++ b/arch/x86/include/asm/paravirt_types.h
@@ -333,9 +333,25 @@ struct arch_spinlock;
typedef u16 __ticket_t;
#endif
+#ifdef CONFIG_QUEUE_SPINLOCK
+enum pv_lock_stats {
+ PV_HALT_QHEAD, /* Queue head halting */
+ PV_HALT_QNODE, /* Other queue node halting */
+ PV_WAKE_KICKED, /* Wakeup by kicking */
+ PV_WAKE_SPURIOUS, /* Spurious wakeup */
+ PV_KICK_NOHALT /* Kick but CPU not halted */
+};
+#endif
+
struct pv_lock_ops {
+#ifdef CONFIG_QUEUE_SPINLOCK
+ void (*kick_cpu)(int cpu);
+ void (*hibernate)(enum pv_lock_stats type);
+ void (*lockstat)(enum pv_lock_stats type);
+#else
struct paravirt_callee_save lock_spinning;
void (*unlock_kick)(struct arch_spinlock *lock, __ticket_t ticket);
+#endif
};
/* This contains all the paravirt structures: we get a convenient
diff --git a/arch/x86/include/asm/pvqspinlock.h b/arch/x86/include/asm/pvqspinlock.h
new file mode 100644
index 0000000..a632dcb
--- /dev/null
+++ b/arch/x86/include/asm/pvqspinlock.h
@@ -0,0 +1,260 @@
+#ifndef _ASM_X86_PVQSPINLOCK_H
+#define _ASM_X86_PVQSPINLOCK_H
+
+/*
+ * Queue Spinlock Para-Virtualization (PV) Support
+ *
+ * +------+ +-----+ next +----+
+ * | Lock | |Queue|----------->|Next|
+ * |Holder|<-----------|Head |<-----------|Node|
+ * +------+ prev_qcode +-----+ prev_qcode +----+
+ *
+ * The PV support code for queue spinlock is roughly the same as that
+ * of the ticket spinlock. Each CPU waiting for the lock will spin until it
+ * reaches a threshold. When that happens, it will put itself to halt so
+ * that the hypervisor can reuse the CPU cycles in some other guests.
+ *
+ * A major difference between the two versions of PV support is the fact
+ * that the queue head will spin twice as long as the other nodes before it
+ * puts itself to halt.
+ *
+ * There are 2 places where race can happen:
+ * 1) Halting of the queue head CPU (in pv_head_spin_check) and the CPU
+ * kicking by the lock holder (in pv_kick_node).
+ * 2) Halting of the queue node CPU (in pv_queue_spin_check) and the
+ * the status check by the previous queue head (in pv_next_node_check).
+ * See the comments on those functions to see how the races are being
+ * addressed.
+ */
+
+/*
+ * Spin threshold for queue spinlock
+ * This is half of the ticket lock's SPIN_THRESHOLD. The queue head will
+ * be halted after 2*QSPIN_THRESHOLD whereas the other nodes will be
+ * halted after QSPIN_THRESHOLD.
+ */
+#define QSPIN_THRESHOLD (1U<<14)
+
+/*
+ * CPU state flags
+ */
+#define PV_CPU_ACTIVE 1 /* This CPU is active */
+#define PV_CPU_KICKED 2 /* This CPU is being kicked */
+#define PV_CPU_HALTED -1 /* This CPU is halted */
+
+/*
+ * Additional fields to be added to the qnode structure
+ */
+#if CONFIG_NR_CPUS >= (1 << 16)
+#define _cpuid_t u32
+#else
+#define _cpuid_t u16
+#endif
+
+struct qnode;
+
+struct pv_qvars {
+ s8 cpustate; /* CPU status flag */
+ s8 qhead; /* Becoming queue head */
+ _cpuid_t mycpu; /* CPU number of this node */
+ struct qnode *prev; /* Pointer to previous node */
+};
+
+/*
+ * Macro to be used by the unfair lock code to access the previous node pointer
+ * in the pv structure.
+ */
+#define qprev pv.prev
+
+/**
+ * pv_init_vars - initialize fields in struct pv_qvars
+ * @pv : pointer to struct pv_qvars
+ * @cpu: current CPU number
+ */
+static __always_inline void pv_init_vars(struct pv_qvars *pv, int cpu)
+{
+ pv->cpustate = PV_CPU_ACTIVE;
+ pv->prev = NULL;
+ pv->qhead = false;
+ pv->mycpu = cpu;
+}
+
+/**
+ * pv_head_spin_check - perform para-virtualization checks for queue head
+ * @pv : pointer to struct pv_qvars
+ * @count : loop count
+ * @qcode : queue code of the supposed lock holder
+ * @lock : pointer to the qspinlock structure
+ *
+ * The following checks will be done:
+ * 2) Halt itself if lock is still not available after 2*QSPIN_THRESHOLD
+ */
+static __always_inline void pv_head_spin_check(struct pv_qvars *pv, int *count,
+ u32 qcode, struct qspinlock *lock)
+{
+ if (!static_key_false(¶virt_spinlocks_enabled))
+ return;
+
+ if (unlikely(*count >= 2*QSPIN_THRESHOLD)) {
+ u8 lockval;
+
+ /*
+ * Set the lock byte to _QLOCK_LOCKED_SLOWPATH before
+ * trying to hibernate itself. It is possible that the
+ * lock byte had been set to _QLOCK_LOCKED_SLOWPATH
+ * already (spurious wakeup of queue head after a halt).
+ * In this case, just proceeds to sleeping.
+ *
+ * queue head lock holder
+ * ---------- -----------
+ * cpustate = PV_CPU_HALTED
+ * [1] cmpxchg(_QLOCK_LOCKED [2] cmpxchg(_QLOCK_LOCKED => 0)
+ * => _QLOCK_LOCKED_SLOWPATH) if (cmpxchg fails &&
+ * if (cmpxchg succeeds) cpustate == PV_CPU_HALTED)
+ * halt() kick()
+ *
+ * Sequence:
+ * 1,2 - slowpath flag set, queue head halted & lock holder
+ * will call slowpath
+ * 2,1 - queue head cmpxchg fails, halt is aborted
+ *
+ * If the queue head CPU is woken up by a spurious interrupt
+ * at the same time as the lock holder check the cpustate,
+ * it is possible that the lock holder will try to kick
+ * the queue head CPU which isn't halted.
+ */
+ ACCESS_ONCE(pv->cpustate) = PV_CPU_HALTED;
+ lockval = cmpxchg(&((union arch_qspinlock *)lock)->lock,
+ _QLOCK_LOCKED, _QLOCK_LOCKED_SLOWPATH);
+ if (lockval == 0) {
+ /*
+ * Can exit now as the lock is free
+ */
+ ACCESS_ONCE(pv->cpustate) = PV_CPU_ACTIVE;
+ *count = 0;
+ return;
+ }
+ __queue_hibernate(PV_HALT_QHEAD);
+ __queue_lockstat((pv->cpustate == PV_CPU_KICKED)
+ ? PV_WAKE_KICKED : PV_WAKE_SPURIOUS);
+ ACCESS_ONCE(pv->cpustate) = PV_CPU_ACTIVE;
+ *count = 0; /* Reset count */
+ }
+}
+
+/**
+ * pv_queue_spin_check - perform para-virtualization checks for queue member
+ * @pv : pointer to struct pv_qvars
+ * @count: loop count
+ */
+static __always_inline void pv_queue_spin_check(struct pv_qvars *pv, int *count)
+{
+ if (!static_key_false(¶virt_spinlocks_enabled))
+ return;
+ /*
+ * Attempt to halt oneself after QSPIN_THRESHOLD spins
+ */
+ if (unlikely(*count >= QSPIN_THRESHOLD)) {
+ /*
+ * Time to hibernate itself
+ */
+ ACCESS_ONCE(pv->cpustate) = PV_CPU_HALTED;
+ /*
+ * In order to avoid the racing between pv_next_node_check()
+ * and pv_queue_spin_check(), 2 variables handshake is used
+ * to make sure that pv_next_node_check() won't miss setting
+ * the _QLOCK_LOCKED_SLOWPATH when the CPU is about to be
+ * halted.
+ *
+ * pv_next_node_check pv_queue_spin_check
+ * ------------------ -------------------
+ * [1] qhead = true [3] cpustate = PV_CPU_HALTED
+ * barrier() barrier()
+ * [2] if (cpustate [4] if (qhead)
+ * == PV_CPU_HALTED)
+ *
+ * Sequence:
+ * *,1,*,4,* - halt is aborted as the qhead flag is set,
+ * _QLOCK_LOCKED_SLOWPATH may or may not be set
+ * 3,4,1,2 - the CPU is halt and _QLOCK_LOCKED_SLOWPATH is set
+ */
+ barrier();
+ if (!ACCESS_ONCE(pv->qhead)) {
+ __queue_hibernate(PV_HALT_QNODE);
+ __queue_lockstat((pv->cpustate == PV_CPU_KICKED)
+ ? PV_WAKE_KICKED : PV_WAKE_SPURIOUS);
+ } else {
+ pv->qhead = false;
+ }
+ ACCESS_ONCE(pv->cpustate) = PV_CPU_ACTIVE;
+ *count = 0; /* Reset count */
+ }
+}
+
+/**
+ * pv_next_node_check - set _QLOCK_LOCKED_SLOWPATH flag if the next node
+ * is halted
+ * @pv : pointer to struct pv_qvars
+ * @count: loop count
+ *
+ * The current CPU should have gotten the lock before calling this function.
+ */
+static __always_inline void
+pv_next_node_check(struct pv_qvars *pv, struct qspinlock *lock)
+{
+ if (!static_key_false(¶virt_spinlocks_enabled))
+ return;
+ pv->qhead = true;
+ /*
+ * Make sure qhead flag is visible before checking the cpustate flag
+ */
+ barrier();
+ if (ACCESS_ONCE(pv->cpustate) == PV_CPU_HALTED)
+ ACCESS_ONCE(((union arch_qspinlock *)lock)->lock)
+ = _QLOCK_LOCKED_SLOWPATH;
+}
+
+/**
+ * pv_set_prev - set previous queue node pointer
+ * @pv : pointer to struct pv_qvars to be set
+ * @prev: pointer to the previous node
+ */
+static __always_inline void pv_set_prev(struct pv_qvars *pv, struct qnode *prev)
+{
+ ACCESS_ONCE(pv->prev) = prev;
+ /*
+ * Make sure the prev field is set up before others
+ */
+ smp_wmb();
+}
+
+/*
+ * The following inlined functions are being used by the
+ * queue_spin_unlock_slowpath() function.
+ */
+
+/**
+ * pv_get_prev - get previous queue node pointer
+ * @pv : pointer to struct pv_qvars to be set
+ * Return: the previous queue node pointer
+ */
+static __always_inline struct qnode *pv_get_prev(struct pv_qvars *pv)
+{
+ return ACCESS_ONCE(pv->prev);
+}
+
+/**
+ * pv_kick_node - kick up the CPU of the given node
+ * @pv : pointer to struct pv_qvars of the node to be kicked
+ */
+static __always_inline void pv_kick_node(struct pv_qvars *pv)
+{
+ if (pv->cpustate != PV_CPU_HALTED) {
+ __queue_lockstat(PV_KICK_NOHALT);
+ return;
+ }
+ ACCESS_ONCE(pv->cpustate) = PV_CPU_KICKED;
+ __queue_kick_cpu(pv->mycpu);
+}
+
+#endif /* _ASM_X86_PVQSPINLOCK_H */
diff --git a/arch/x86/include/asm/qspinlock.h b/arch/x86/include/asm/qspinlock.h
index d91994d..98692cf 100644
--- a/arch/x86/include/asm/qspinlock.h
+++ b/arch/x86/include/asm/qspinlock.h
@@ -42,7 +42,11 @@ extern struct static_key paravirt_unfairlocks_enabled;
* that the clearing the lock bit is done ASAP without artificial delay
* due to compiler optimization.
*/
+#ifdef CONFIG_PARAVIRT_SPINLOCKS
+static __always_inline void __queue_spin_unlock(struct qspinlock *lock)
+#else
static inline void queue_spin_unlock(struct qspinlock *lock)
+#endif
{
union arch_qspinlock *qlock = (union arch_qspinlock *)lock;
@@ -51,6 +55,37 @@ static inline void queue_spin_unlock(struct qspinlock *lock)
barrier();
}
+#ifdef CONFIG_PARAVIRT_SPINLOCKS
+/*
+ * The lock byte can have a value of _QLOCK_LOCKED_SLOWPATH to indicate
+ * that it needs to go through the slowpath to do the unlocking.
+ */
+#define _QLOCK_LOCKED_SLOWPATH 3 /* Set both bits 0 & 1 */
+
+extern void queue_spin_unlock_slowpath(struct qspinlock *lock);
+
+static inline void queue_spin_unlock(struct qspinlock *lock)
+{
+ union arch_qspinlock *qlock = (union arch_qspinlock *)lock;
+
+ barrier();
+ if (static_key_false(¶virt_spinlocks_enabled)) {
+ /*
+ * Need to atomically clear the lock byte to avoid racing with
+ * queue head waiter trying to set _QLOCK_LOCKED_SLOWPATH.
+ */
+ if (likely(cmpxchg(&qlock->lock, _QLOCK_LOCKED, 0)
+ == _QLOCK_LOCKED))
+ return;
+ else
+ queue_spin_unlock_slowpath(lock);
+
+ } else {
+ __queue_spin_unlock(lock);
+ }
+}
+#endif
+
#ifdef _QCODE_SHORT
#define __queue_spin_trylock __queue_spin_trylock
/**
diff --git a/arch/x86/kernel/paravirt-spinlocks.c b/arch/x86/kernel/paravirt-spinlocks.c
index 6d36731..9379417 100644
--- a/arch/x86/kernel/paravirt-spinlocks.c
+++ b/arch/x86/kernel/paravirt-spinlocks.c
@@ -11,9 +11,15 @@
#ifdef CONFIG_PARAVIRT_SPINLOCKS
struct pv_lock_ops pv_lock_ops = {
#ifdef CONFIG_SMP
+#ifdef CONFIG_QUEUE_SPINLOCK
+ .kick_cpu = paravirt_nop,
+ .hibernate = paravirt_nop,
+ .lockstat = paravirt_nop,
+#else
.lock_spinning = __PV_IS_CALLEE_SAVE(paravirt_nop),
.unlock_kick = paravirt_nop,
#endif
+#endif
};
EXPORT_SYMBOL(pv_lock_ops);
diff --git a/kernel/locking/qspinlock.c b/kernel/locking/qspinlock.c
index 527efc3..3448010 100644
--- a/kernel/locking/qspinlock.c
+++ b/kernel/locking/qspinlock.c
@@ -58,6 +58,26 @@
*/
/*
+ * Para-virtualized queue spinlock support
+ */
+#ifdef CONFIG_PARAVIRT_SPINLOCKS
+#include <asm/pvqspinlock.h>
+#else
+
+struct qnode;
+struct pv_qvars {};
+static inline void pv_init_vars(struct pv_qvars *pv, int cpu_nr) {}
+static inline void pv_head_spin_check(struct pv_qvars *pv, int *count,
+ u32 qcode, struct qspinlock *lock) {}
+static inline void pv_queue_spin_check(struct pv_qvars *pv, int *count) {}
+static inline void pv_next_node_check(struct pv_qvars *pv, void *lock) {}
+static inline void pv_kick_node(struct pv_qvars *pv) {}
+static inline void pv_set_prev(struct pv_qvars *pv, struct qnode *prev) {}
+static inline struct qnode *pv_get_prev(struct pv_qvars *pv)
+{ return NULL; }
+#endif
+
+/*
* The 24-bit queue node code is divided into the following 2 fields:
* Bits 0-1 : queue node index (4 nodes)
* Bits 2-23: CPU number + 1 (4M - 1 CPUs)
@@ -86,14 +106,20 @@ enum exitval {
/*
* The queue node structure
+ *
+ * If CONFIG_PARAVIRT_SPINLOCKS is turned on, the previous node pointer in
+ * the pv structure will be used by the unfair lock code.
*/
struct qnode {
u32 qhead; /* Queue head flag */
#ifdef CONFIG_PARAVIRT_UNFAIR_LOCKS
int lsteal_mask; /* Lock stealing frequency mask */
u32 prev_qcode; /* Queue code of previous node */
+#ifndef CONFIG_PARAVIRT_SPINLOCKS
struct qnode *qprev; /* Previous queue node addr */
#endif
+#endif
+ struct pv_qvars pv; /* Para-virtualization */
struct qnode *next; /* Next queue node addr */
};
@@ -103,6 +129,20 @@ struct qnode_set {
};
/*
+ * Allow spinning loop count only if either PV spinlock or unfair lock is
+ * configured.
+ */
+#if defined(CONFIG_PARAVIRT_UNFAIR_LOCKS) || defined(CONFIG_PARAVIRT_SPINLOCKS)
+#define DEF_LOOP_CNT(c) int c = 0
+#define INC_LOOP_CNT(c) (c)++
+#define LOOP_CNT(c) c
+#else
+#define DEF_LOOP_CNT(c)
+#define INC_LOOP_CNT(c)
+#define LOOP_CNT(c) 0
+#endif
+
+/*
* Per-CPU queue node structures
*/
static DEFINE_PER_CPU_ALIGNED(struct qnode_set, qnset) = { { { 0 } }, 0 };
@@ -190,6 +230,16 @@ static inline int queue_spin_trylock_quick(struct qspinlock *lock, int qsval)
union arch_qspinlock *qlock = (union arch_qspinlock *)lock;
int wset = false; /* True if wait bit was set */
+#ifdef CONFIG_PARAVIRT_SPINLOCKS
+ /*
+ * Disable the quick spinning code path if PV spinlock is enabled to
+ * make sure that all the spinning CPUs can be halted when the lock
+ * holder is scheduled out.
+ */
+ if (static_key_false(¶virt_spinlocks_enabled))
+ return 0;
+#endif
+
/*
* Fall into the quick spinning code path only if no task is waiting
* in the queue.
@@ -526,9 +576,6 @@ cmpxchg_queue_code(struct qspinlock *lock, u32 ocode, u32 ncode)
* starvation.
*/
#ifdef CONFIG_PARAVIRT_UNFAIR_LOCKS
-#define DEF_LOOP_CNT(c) int c = 0
-#define INC_LOOP_CNT(c) (c)++
-#define LOOP_CNT(c) c
#define LSTEAL_MIN (1 << 3)
#define LSTEAL_MAX (1 << 10)
#define LSTEAL_MIN_MASK (LSTEAL_MIN - 1)
@@ -554,6 +601,14 @@ static void unfair_init_vars(struct qnode *node)
static void
unfair_set_vars(struct qnode *node, struct qnode *prev, u32 prev_qcode)
{
+#ifdef CONFIG_PARAVIRT_SPINLOCKS
+ /*
+ * Disable waiter lock stealing if PV spinlock is enabled
+ */
+ if (static_key_false(¶virt_spinlocks_enabled))
+ return;
+#endif
+
if (!static_key_false(¶virt_unfairlocks_enabled))
return;
@@ -580,6 +635,14 @@ unfair_set_vars(struct qnode *node, struct qnode *prev, u32 prev_qcode)
*/
static enum exitval unfair_check_qcode(struct qspinlock *lock, u32 my_qcode)
{
+#ifdef CONFIG_PARAVIRT_SPINLOCKS
+ /*
+ * Disable waiter lock stealing if PV spinlock is enabled
+ */
+ if (static_key_false(¶virt_spinlocks_enabled))
+ return NOTIFY_NEXT;
+#endif
+
if (!static_key_false(¶virt_unfairlocks_enabled))
return NOTIFY_NEXT;
@@ -607,6 +670,14 @@ static enum exitval unfair_get_lock(struct qspinlock *lock, struct qnode *node,
int qhead;
struct qnode *next;
+#ifdef CONFIG_PARAVIRT_SPINLOCKS
+ /*
+ * Disable waiter lock stealing if PV spinlock is enabled
+ */
+ if (static_key_false(¶virt_spinlocks_enabled))
+ return NORMAL_EXIT;
+#endif
+
if (!static_key_false(¶virt_unfairlocks_enabled) ||
((count & node->lsteal_mask) != node->lsteal_mask))
return NORMAL_EXIT;
@@ -675,9 +746,6 @@ static enum exitval unfair_get_lock(struct qspinlock *lock, struct qnode *node,
}
#else /* CONFIG_PARAVIRT_UNFAIR_LOCKS */
-#define DEF_LOOP_CNT(c)
-#define INC_LOOP_CNT(c)
-#define LOOP_CNT(c) 0
static void unfair_init_vars(struct qnode *node) {}
static void unfair_set_vars(struct qnode *node, struct qnode *prev,
@@ -748,6 +816,7 @@ static noinline void queue_spin_lock_slowerpath(struct qspinlock *lock,
struct qnode *next;
u32 prev_qcode;
enum exitval exitval;
+ DEF_LOOP_CNT(hcnt);
/*
* Exchange current copy of the queue node code
@@ -767,6 +836,7 @@ static noinline void queue_spin_lock_slowerpath(struct qspinlock *lock,
DEF_LOOP_CNT(cnt);
unfair_set_vars(node, prev, prev_qcode);
+ pv_set_prev(&node->pv, prev);
ACCESS_ONCE(prev->next) = node;
/*
* Wait until the queue head flag is on
@@ -780,13 +850,17 @@ static noinline void queue_spin_lock_slowerpath(struct qspinlock *lock,
goto release_node;
else if (unlikely(exitval == NOTIFY_NEXT))
goto notify_next;
+ pv_queue_spin_check(&node->pv, LOOP_CNT(&cnt));
} while (!ACCESS_ONCE(node->qhead));
+ } else {
+ ACCESS_ONCE(node->qhead) = true;
}
/*
* At the head of the wait queue now
*/
for (;; arch_mutex_cpu_relax()) {
+ INC_LOOP_CNT(hcnt);
qsval = atomic_read(&lock->qlcode);
if (qsval & _QLOCK_LOCK_MASK)
continue; /* Lock not available yet */
@@ -820,6 +894,12 @@ static noinline void queue_spin_lock_slowerpath(struct qspinlock *lock,
} else if (queue_spin_trylock_and_clr_qcode(lock, my_qcode)) {
goto release_node;
}
+
+ /*
+ * Perform para-virtualization checks
+ */
+ pv_head_spin_check(&node->pv, LOOP_CNT(&hcnt), prev_qcode,
+ lock);
}
notify_next:
@@ -832,6 +912,7 @@ set_qhead:
/*
* The next one in queue is now at the head
*/
+ pv_next_node_check(&next->pv, lock);
ACCESS_ONCE(next->qhead) = true;
release_node:
@@ -871,6 +952,7 @@ void queue_spin_lock_slowpath(struct qspinlock *lock, int qsval)
node->qhead = false;
node->next = NULL;
unfair_init_vars(node);
+ pv_init_vars(&node->pv, cpu_nr);
/*
* The lock may be available at this point, try again if no task was
@@ -882,3 +964,47 @@ void queue_spin_lock_slowpath(struct qspinlock *lock, int qsval)
queue_spin_lock_slowerpath(lock, node, my_qcode);
}
EXPORT_SYMBOL(queue_spin_lock_slowpath);
+
+
+#ifdef CONFIG_PARAVIRT_SPINLOCKS
+/**
+ * queue_spin_unlock_slowpath - kick up the CPU of the queue head
+ * @lock : Pointer to queue spinlock structure
+ *
+ * The lock is released after finding the queue head to avoid racing
+ * condition between the queue head and the lock holder.
+ */
+void queue_spin_unlock_slowpath(struct qspinlock *lock)
+{
+ struct qnode *node, *prev;
+ u32 qcode = queue_get_qcode(lock);
+
+ /*
+ * Get the queue tail node
+ */
+ node = xlate_qcode(qcode);
+
+ /*
+ * Locate the queue head node by following the prev pointer from
+ * tail to head.
+ * It is assumed that the PV guests won't have that many CPUs so
+ * that it won't take a long time to follow the pointers.
+ */
+ while (!ACCESS_ONCE(node->qhead)) {
+ prev = pv_get_prev(&node->pv);
+ if (prev)
+ node = prev;
+ else
+ /*
+ * Delay a bit to allow the prev pointer to be set up
+ */
+ arch_mutex_cpu_relax();
+ }
+ /*
+ * Found the queue head, now release the lock before waking it up
+ */
+ __queue_spin_unlock(lock);
+ pv_kick_node(&node->pv);
+}
+EXPORT_SYMBOL(queue_spin_unlock_slowpath);
+#endif /* CONFIG_PARAVIRT_SPINLOCKS */
--
1.7.1
^ permalink raw reply related [flat|nested] 109+ messages in thread
* [PATCH v8 08/10] pvqspinlock, x86: Add qspinlock para-virtualization support
2014-04-02 13:27 [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support Waiman Long
` (13 preceding siblings ...)
2014-04-02 13:27 ` [PATCH v8 08/10] pvqspinlock, x86: Add qspinlock para-virtualization support Waiman Long
@ 2014-04-02 13:27 ` Waiman Long
2014-04-02 13:27 ` [PATCH v8 09/10] pvqspinlock, x86: Enable qspinlock PV support for KVM Waiman Long
` (7 subsequent siblings)
22 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-02 13:27 UTC (permalink / raw)
To: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, Peter Zijlstra
Cc: linux-arch, Waiman Long, Raghavendra K T, Gleb Natapov, kvm,
Aswin Chandramouleeswaran, Scott J Norton, x86, Paolo Bonzini,
linux-kernel, virtualization, Chegu Vinod, David Vrabel,
Oleg Nesterov, xen-devel, Paul E. McKenney, Linus Torvalds
This patch adds para-virtualization support to the queue spinlock in
the same way as was done in the PV ticket lock code. In essence, the
lock waiters will spin for a specified number of times (QSPIN_THRESHOLD
= 2^14) and then halted itself. The queue head waiter, unlike the
other waiter, will spins 2*QSPIN_THRESHOLD times before halting
itself. Before being halted, the queue head waiter will set a flag
(_QLOCK_LOCKED_SLOWPATH) in the lock byte to indicate that the unlock
slowpath has to be invoked.
In the unlock slowpath, the current lock holder will find the queue
head by following the previous node pointer links stored in the queue
node structure until it finds one that has the qhead flag turned
on. It then attempt to kick the CPU of the queue head.
After the queue head acquired the lock, it will also check the status
of the next node and set _QLOCK_LOCKED_SLOWPATH if it has been halted.
Enabling the PV code does have a performance impact on spinlock
acquisitions and releases. The following table shows the execution
time (in ms) of a spinlock micro-benchmark that does lock/unlock
operations 5M times for each task versus the number of contending
tasks on a Westmere-EX system.
# of Ticket lock Queue lock
tasks PV off/PV on/%Change PV off/PV on/%Change
------ -------------------- ---------------------
1 135/ 179/+33% 137/ 169/+23%
2 1045/ 1103/ +6% 964/ 1137/+18%
3 1827/ 2683/+47% 2228/ 2537/+14%
4 2689/ 4191/+56% 2769/ 3097/+12%
5 3736/ 5830/+56% 3447/ 3568/ +4%
6 4942/ 7609/+54% 4169/ 4292/ +3%
7 6304/ 9570/+52% 4898/ 5021/ +3%
8 7736/11323/+46% 5620/ 5717/ +2%
The big reduction in performance with 2 contending tasks for the PV
queue spinlock is due to the switching off of the optimized code path
when PV spinlock code is turned on.
It can be seen that the ticket lock PV code has a fairly big decrease
in performance when there are 3 or more contending tasks. The queue
spinlock PV code, on the other hand, only has a relatively minor drop
in performance for 3 or more contending tasks. At 5 or more contending
tasks, there is practically no difference in performance. When coupled
with unfair lock, the queue spinlock can be much faster than the PV
ticket lock.
When both the unfair lock and PV spinlock features is turned on,
lock stealing will still be allowed in the fastpath, but not in
the slowpath.
Signed-off-by: Waiman Long <Waiman.Long@hp.com>
---
arch/x86/include/asm/paravirt.h | 17 ++-
arch/x86/include/asm/paravirt_types.h | 16 ++
arch/x86/include/asm/pvqspinlock.h | 260 +++++++++++++++++++++++++++++++++
arch/x86/include/asm/qspinlock.h | 35 +++++
arch/x86/kernel/paravirt-spinlocks.c | 6 +
kernel/locking/qspinlock.c | 138 +++++++++++++++++-
6 files changed, 465 insertions(+), 7 deletions(-)
create mode 100644 arch/x86/include/asm/pvqspinlock.h
diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index cd6e161..a35cd02 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -711,7 +711,22 @@ static inline void __set_fixmap(unsigned /* enum fixed_addresses */ idx,
}
#if defined(CONFIG_SMP) && defined(CONFIG_PARAVIRT_SPINLOCKS)
+#ifdef CONFIG_QUEUE_SPINLOCK
+static __always_inline void __queue_kick_cpu(int cpu)
+{
+ PVOP_VCALL1(pv_lock_ops.kick_cpu, cpu);
+}
+
+static __always_inline void __queue_hibernate(enum pv_lock_stats type)
+{
+ PVOP_VCALL1(pv_lock_ops.hibernate, type);
+}
+static __always_inline void __queue_lockstat(enum pv_lock_stats type)
+{
+ PVOP_VCALL1(pv_lock_ops.lockstat, type);
+}
+#else
static __always_inline void __ticket_lock_spinning(struct arch_spinlock *lock,
__ticket_t ticket)
{
@@ -723,7 +738,7 @@ static __always_inline void __ticket_unlock_kick(struct arch_spinlock *lock,
{
PVOP_VCALL2(pv_lock_ops.unlock_kick, lock, ticket);
}
-
+#endif
#endif
#ifdef CONFIG_X86_32
diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
index 7549b8b..a8564b9 100644
--- a/arch/x86/include/asm/paravirt_types.h
+++ b/arch/x86/include/asm/paravirt_types.h
@@ -333,9 +333,25 @@ struct arch_spinlock;
typedef u16 __ticket_t;
#endif
+#ifdef CONFIG_QUEUE_SPINLOCK
+enum pv_lock_stats {
+ PV_HALT_QHEAD, /* Queue head halting */
+ PV_HALT_QNODE, /* Other queue node halting */
+ PV_WAKE_KICKED, /* Wakeup by kicking */
+ PV_WAKE_SPURIOUS, /* Spurious wakeup */
+ PV_KICK_NOHALT /* Kick but CPU not halted */
+};
+#endif
+
struct pv_lock_ops {
+#ifdef CONFIG_QUEUE_SPINLOCK
+ void (*kick_cpu)(int cpu);
+ void (*hibernate)(enum pv_lock_stats type);
+ void (*lockstat)(enum pv_lock_stats type);
+#else
struct paravirt_callee_save lock_spinning;
void (*unlock_kick)(struct arch_spinlock *lock, __ticket_t ticket);
+#endif
};
/* This contains all the paravirt structures: we get a convenient
diff --git a/arch/x86/include/asm/pvqspinlock.h b/arch/x86/include/asm/pvqspinlock.h
new file mode 100644
index 0000000..a632dcb
--- /dev/null
+++ b/arch/x86/include/asm/pvqspinlock.h
@@ -0,0 +1,260 @@
+#ifndef _ASM_X86_PVQSPINLOCK_H
+#define _ASM_X86_PVQSPINLOCK_H
+
+/*
+ * Queue Spinlock Para-Virtualization (PV) Support
+ *
+ * +------+ +-----+ next +----+
+ * | Lock | |Queue|----------->|Next|
+ * |Holder|<-----------|Head |<-----------|Node|
+ * +------+ prev_qcode +-----+ prev_qcode +----+
+ *
+ * The PV support code for queue spinlock is roughly the same as that
+ * of the ticket spinlock. Each CPU waiting for the lock will spin until it
+ * reaches a threshold. When that happens, it will put itself to halt so
+ * that the hypervisor can reuse the CPU cycles in some other guests.
+ *
+ * A major difference between the two versions of PV support is the fact
+ * that the queue head will spin twice as long as the other nodes before it
+ * puts itself to halt.
+ *
+ * There are 2 places where race can happen:
+ * 1) Halting of the queue head CPU (in pv_head_spin_check) and the CPU
+ * kicking by the lock holder (in pv_kick_node).
+ * 2) Halting of the queue node CPU (in pv_queue_spin_check) and the
+ * the status check by the previous queue head (in pv_next_node_check).
+ * See the comments on those functions to see how the races are being
+ * addressed.
+ */
+
+/*
+ * Spin threshold for queue spinlock
+ * This is half of the ticket lock's SPIN_THRESHOLD. The queue head will
+ * be halted after 2*QSPIN_THRESHOLD whereas the other nodes will be
+ * halted after QSPIN_THRESHOLD.
+ */
+#define QSPIN_THRESHOLD (1U<<14)
+
+/*
+ * CPU state flags
+ */
+#define PV_CPU_ACTIVE 1 /* This CPU is active */
+#define PV_CPU_KICKED 2 /* This CPU is being kicked */
+#define PV_CPU_HALTED -1 /* This CPU is halted */
+
+/*
+ * Additional fields to be added to the qnode structure
+ */
+#if CONFIG_NR_CPUS >= (1 << 16)
+#define _cpuid_t u32
+#else
+#define _cpuid_t u16
+#endif
+
+struct qnode;
+
+struct pv_qvars {
+ s8 cpustate; /* CPU status flag */
+ s8 qhead; /* Becoming queue head */
+ _cpuid_t mycpu; /* CPU number of this node */
+ struct qnode *prev; /* Pointer to previous node */
+};
+
+/*
+ * Macro to be used by the unfair lock code to access the previous node pointer
+ * in the pv structure.
+ */
+#define qprev pv.prev
+
+/**
+ * pv_init_vars - initialize fields in struct pv_qvars
+ * @pv : pointer to struct pv_qvars
+ * @cpu: current CPU number
+ */
+static __always_inline void pv_init_vars(struct pv_qvars *pv, int cpu)
+{
+ pv->cpustate = PV_CPU_ACTIVE;
+ pv->prev = NULL;
+ pv->qhead = false;
+ pv->mycpu = cpu;
+}
+
+/**
+ * pv_head_spin_check - perform para-virtualization checks for queue head
+ * @pv : pointer to struct pv_qvars
+ * @count : loop count
+ * @qcode : queue code of the supposed lock holder
+ * @lock : pointer to the qspinlock structure
+ *
+ * The following checks will be done:
+ * 2) Halt itself if lock is still not available after 2*QSPIN_THRESHOLD
+ */
+static __always_inline void pv_head_spin_check(struct pv_qvars *pv, int *count,
+ u32 qcode, struct qspinlock *lock)
+{
+ if (!static_key_false(¶virt_spinlocks_enabled))
+ return;
+
+ if (unlikely(*count >= 2*QSPIN_THRESHOLD)) {
+ u8 lockval;
+
+ /*
+ * Set the lock byte to _QLOCK_LOCKED_SLOWPATH before
+ * trying to hibernate itself. It is possible that the
+ * lock byte had been set to _QLOCK_LOCKED_SLOWPATH
+ * already (spurious wakeup of queue head after a halt).
+ * In this case, just proceeds to sleeping.
+ *
+ * queue head lock holder
+ * ---------- -----------
+ * cpustate = PV_CPU_HALTED
+ * [1] cmpxchg(_QLOCK_LOCKED [2] cmpxchg(_QLOCK_LOCKED => 0)
+ * => _QLOCK_LOCKED_SLOWPATH) if (cmpxchg fails &&
+ * if (cmpxchg succeeds) cpustate == PV_CPU_HALTED)
+ * halt() kick()
+ *
+ * Sequence:
+ * 1,2 - slowpath flag set, queue head halted & lock holder
+ * will call slowpath
+ * 2,1 - queue head cmpxchg fails, halt is aborted
+ *
+ * If the queue head CPU is woken up by a spurious interrupt
+ * at the same time as the lock holder check the cpustate,
+ * it is possible that the lock holder will try to kick
+ * the queue head CPU which isn't halted.
+ */
+ ACCESS_ONCE(pv->cpustate) = PV_CPU_HALTED;
+ lockval = cmpxchg(&((union arch_qspinlock *)lock)->lock,
+ _QLOCK_LOCKED, _QLOCK_LOCKED_SLOWPATH);
+ if (lockval == 0) {
+ /*
+ * Can exit now as the lock is free
+ */
+ ACCESS_ONCE(pv->cpustate) = PV_CPU_ACTIVE;
+ *count = 0;
+ return;
+ }
+ __queue_hibernate(PV_HALT_QHEAD);
+ __queue_lockstat((pv->cpustate == PV_CPU_KICKED)
+ ? PV_WAKE_KICKED : PV_WAKE_SPURIOUS);
+ ACCESS_ONCE(pv->cpustate) = PV_CPU_ACTIVE;
+ *count = 0; /* Reset count */
+ }
+}
+
+/**
+ * pv_queue_spin_check - perform para-virtualization checks for queue member
+ * @pv : pointer to struct pv_qvars
+ * @count: loop count
+ */
+static __always_inline void pv_queue_spin_check(struct pv_qvars *pv, int *count)
+{
+ if (!static_key_false(¶virt_spinlocks_enabled))
+ return;
+ /*
+ * Attempt to halt oneself after QSPIN_THRESHOLD spins
+ */
+ if (unlikely(*count >= QSPIN_THRESHOLD)) {
+ /*
+ * Time to hibernate itself
+ */
+ ACCESS_ONCE(pv->cpustate) = PV_CPU_HALTED;
+ /*
+ * In order to avoid the racing between pv_next_node_check()
+ * and pv_queue_spin_check(), 2 variables handshake is used
+ * to make sure that pv_next_node_check() won't miss setting
+ * the _QLOCK_LOCKED_SLOWPATH when the CPU is about to be
+ * halted.
+ *
+ * pv_next_node_check pv_queue_spin_check
+ * ------------------ -------------------
+ * [1] qhead = true [3] cpustate = PV_CPU_HALTED
+ * barrier() barrier()
+ * [2] if (cpustate [4] if (qhead)
+ * == PV_CPU_HALTED)
+ *
+ * Sequence:
+ * *,1,*,4,* - halt is aborted as the qhead flag is set,
+ * _QLOCK_LOCKED_SLOWPATH may or may not be set
+ * 3,4,1,2 - the CPU is halt and _QLOCK_LOCKED_SLOWPATH is set
+ */
+ barrier();
+ if (!ACCESS_ONCE(pv->qhead)) {
+ __queue_hibernate(PV_HALT_QNODE);
+ __queue_lockstat((pv->cpustate == PV_CPU_KICKED)
+ ? PV_WAKE_KICKED : PV_WAKE_SPURIOUS);
+ } else {
+ pv->qhead = false;
+ }
+ ACCESS_ONCE(pv->cpustate) = PV_CPU_ACTIVE;
+ *count = 0; /* Reset count */
+ }
+}
+
+/**
+ * pv_next_node_check - set _QLOCK_LOCKED_SLOWPATH flag if the next node
+ * is halted
+ * @pv : pointer to struct pv_qvars
+ * @count: loop count
+ *
+ * The current CPU should have gotten the lock before calling this function.
+ */
+static __always_inline void
+pv_next_node_check(struct pv_qvars *pv, struct qspinlock *lock)
+{
+ if (!static_key_false(¶virt_spinlocks_enabled))
+ return;
+ pv->qhead = true;
+ /*
+ * Make sure qhead flag is visible before checking the cpustate flag
+ */
+ barrier();
+ if (ACCESS_ONCE(pv->cpustate) == PV_CPU_HALTED)
+ ACCESS_ONCE(((union arch_qspinlock *)lock)->lock)
+ = _QLOCK_LOCKED_SLOWPATH;
+}
+
+/**
+ * pv_set_prev - set previous queue node pointer
+ * @pv : pointer to struct pv_qvars to be set
+ * @prev: pointer to the previous node
+ */
+static __always_inline void pv_set_prev(struct pv_qvars *pv, struct qnode *prev)
+{
+ ACCESS_ONCE(pv->prev) = prev;
+ /*
+ * Make sure the prev field is set up before others
+ */
+ smp_wmb();
+}
+
+/*
+ * The following inlined functions are being used by the
+ * queue_spin_unlock_slowpath() function.
+ */
+
+/**
+ * pv_get_prev - get previous queue node pointer
+ * @pv : pointer to struct pv_qvars to be set
+ * Return: the previous queue node pointer
+ */
+static __always_inline struct qnode *pv_get_prev(struct pv_qvars *pv)
+{
+ return ACCESS_ONCE(pv->prev);
+}
+
+/**
+ * pv_kick_node - kick up the CPU of the given node
+ * @pv : pointer to struct pv_qvars of the node to be kicked
+ */
+static __always_inline void pv_kick_node(struct pv_qvars *pv)
+{
+ if (pv->cpustate != PV_CPU_HALTED) {
+ __queue_lockstat(PV_KICK_NOHALT);
+ return;
+ }
+ ACCESS_ONCE(pv->cpustate) = PV_CPU_KICKED;
+ __queue_kick_cpu(pv->mycpu);
+}
+
+#endif /* _ASM_X86_PVQSPINLOCK_H */
diff --git a/arch/x86/include/asm/qspinlock.h b/arch/x86/include/asm/qspinlock.h
index d91994d..98692cf 100644
--- a/arch/x86/include/asm/qspinlock.h
+++ b/arch/x86/include/asm/qspinlock.h
@@ -42,7 +42,11 @@ extern struct static_key paravirt_unfairlocks_enabled;
* that the clearing the lock bit is done ASAP without artificial delay
* due to compiler optimization.
*/
+#ifdef CONFIG_PARAVIRT_SPINLOCKS
+static __always_inline void __queue_spin_unlock(struct qspinlock *lock)
+#else
static inline void queue_spin_unlock(struct qspinlock *lock)
+#endif
{
union arch_qspinlock *qlock = (union arch_qspinlock *)lock;
@@ -51,6 +55,37 @@ static inline void queue_spin_unlock(struct qspinlock *lock)
barrier();
}
+#ifdef CONFIG_PARAVIRT_SPINLOCKS
+/*
+ * The lock byte can have a value of _QLOCK_LOCKED_SLOWPATH to indicate
+ * that it needs to go through the slowpath to do the unlocking.
+ */
+#define _QLOCK_LOCKED_SLOWPATH 3 /* Set both bits 0 & 1 */
+
+extern void queue_spin_unlock_slowpath(struct qspinlock *lock);
+
+static inline void queue_spin_unlock(struct qspinlock *lock)
+{
+ union arch_qspinlock *qlock = (union arch_qspinlock *)lock;
+
+ barrier();
+ if (static_key_false(¶virt_spinlocks_enabled)) {
+ /*
+ * Need to atomically clear the lock byte to avoid racing with
+ * queue head waiter trying to set _QLOCK_LOCKED_SLOWPATH.
+ */
+ if (likely(cmpxchg(&qlock->lock, _QLOCK_LOCKED, 0)
+ == _QLOCK_LOCKED))
+ return;
+ else
+ queue_spin_unlock_slowpath(lock);
+
+ } else {
+ __queue_spin_unlock(lock);
+ }
+}
+#endif
+
#ifdef _QCODE_SHORT
#define __queue_spin_trylock __queue_spin_trylock
/**
diff --git a/arch/x86/kernel/paravirt-spinlocks.c b/arch/x86/kernel/paravirt-spinlocks.c
index 6d36731..9379417 100644
--- a/arch/x86/kernel/paravirt-spinlocks.c
+++ b/arch/x86/kernel/paravirt-spinlocks.c
@@ -11,9 +11,15 @@
#ifdef CONFIG_PARAVIRT_SPINLOCKS
struct pv_lock_ops pv_lock_ops = {
#ifdef CONFIG_SMP
+#ifdef CONFIG_QUEUE_SPINLOCK
+ .kick_cpu = paravirt_nop,
+ .hibernate = paravirt_nop,
+ .lockstat = paravirt_nop,
+#else
.lock_spinning = __PV_IS_CALLEE_SAVE(paravirt_nop),
.unlock_kick = paravirt_nop,
#endif
+#endif
};
EXPORT_SYMBOL(pv_lock_ops);
diff --git a/kernel/locking/qspinlock.c b/kernel/locking/qspinlock.c
index 527efc3..3448010 100644
--- a/kernel/locking/qspinlock.c
+++ b/kernel/locking/qspinlock.c
@@ -58,6 +58,26 @@
*/
/*
+ * Para-virtualized queue spinlock support
+ */
+#ifdef CONFIG_PARAVIRT_SPINLOCKS
+#include <asm/pvqspinlock.h>
+#else
+
+struct qnode;
+struct pv_qvars {};
+static inline void pv_init_vars(struct pv_qvars *pv, int cpu_nr) {}
+static inline void pv_head_spin_check(struct pv_qvars *pv, int *count,
+ u32 qcode, struct qspinlock *lock) {}
+static inline void pv_queue_spin_check(struct pv_qvars *pv, int *count) {}
+static inline void pv_next_node_check(struct pv_qvars *pv, void *lock) {}
+static inline void pv_kick_node(struct pv_qvars *pv) {}
+static inline void pv_set_prev(struct pv_qvars *pv, struct qnode *prev) {}
+static inline struct qnode *pv_get_prev(struct pv_qvars *pv)
+{ return NULL; }
+#endif
+
+/*
* The 24-bit queue node code is divided into the following 2 fields:
* Bits 0-1 : queue node index (4 nodes)
* Bits 2-23: CPU number + 1 (4M - 1 CPUs)
@@ -86,14 +106,20 @@ enum exitval {
/*
* The queue node structure
+ *
+ * If CONFIG_PARAVIRT_SPINLOCKS is turned on, the previous node pointer in
+ * the pv structure will be used by the unfair lock code.
*/
struct qnode {
u32 qhead; /* Queue head flag */
#ifdef CONFIG_PARAVIRT_UNFAIR_LOCKS
int lsteal_mask; /* Lock stealing frequency mask */
u32 prev_qcode; /* Queue code of previous node */
+#ifndef CONFIG_PARAVIRT_SPINLOCKS
struct qnode *qprev; /* Previous queue node addr */
#endif
+#endif
+ struct pv_qvars pv; /* Para-virtualization */
struct qnode *next; /* Next queue node addr */
};
@@ -103,6 +129,20 @@ struct qnode_set {
};
/*
+ * Allow spinning loop count only if either PV spinlock or unfair lock is
+ * configured.
+ */
+#if defined(CONFIG_PARAVIRT_UNFAIR_LOCKS) || defined(CONFIG_PARAVIRT_SPINLOCKS)
+#define DEF_LOOP_CNT(c) int c = 0
+#define INC_LOOP_CNT(c) (c)++
+#define LOOP_CNT(c) c
+#else
+#define DEF_LOOP_CNT(c)
+#define INC_LOOP_CNT(c)
+#define LOOP_CNT(c) 0
+#endif
+
+/*
* Per-CPU queue node structures
*/
static DEFINE_PER_CPU_ALIGNED(struct qnode_set, qnset) = { { { 0 } }, 0 };
@@ -190,6 +230,16 @@ static inline int queue_spin_trylock_quick(struct qspinlock *lock, int qsval)
union arch_qspinlock *qlock = (union arch_qspinlock *)lock;
int wset = false; /* True if wait bit was set */
+#ifdef CONFIG_PARAVIRT_SPINLOCKS
+ /*
+ * Disable the quick spinning code path if PV spinlock is enabled to
+ * make sure that all the spinning CPUs can be halted when the lock
+ * holder is scheduled out.
+ */
+ if (static_key_false(¶virt_spinlocks_enabled))
+ return 0;
+#endif
+
/*
* Fall into the quick spinning code path only if no task is waiting
* in the queue.
@@ -526,9 +576,6 @@ cmpxchg_queue_code(struct qspinlock *lock, u32 ocode, u32 ncode)
* starvation.
*/
#ifdef CONFIG_PARAVIRT_UNFAIR_LOCKS
-#define DEF_LOOP_CNT(c) int c = 0
-#define INC_LOOP_CNT(c) (c)++
-#define LOOP_CNT(c) c
#define LSTEAL_MIN (1 << 3)
#define LSTEAL_MAX (1 << 10)
#define LSTEAL_MIN_MASK (LSTEAL_MIN - 1)
@@ -554,6 +601,14 @@ static void unfair_init_vars(struct qnode *node)
static void
unfair_set_vars(struct qnode *node, struct qnode *prev, u32 prev_qcode)
{
+#ifdef CONFIG_PARAVIRT_SPINLOCKS
+ /*
+ * Disable waiter lock stealing if PV spinlock is enabled
+ */
+ if (static_key_false(¶virt_spinlocks_enabled))
+ return;
+#endif
+
if (!static_key_false(¶virt_unfairlocks_enabled))
return;
@@ -580,6 +635,14 @@ unfair_set_vars(struct qnode *node, struct qnode *prev, u32 prev_qcode)
*/
static enum exitval unfair_check_qcode(struct qspinlock *lock, u32 my_qcode)
{
+#ifdef CONFIG_PARAVIRT_SPINLOCKS
+ /*
+ * Disable waiter lock stealing if PV spinlock is enabled
+ */
+ if (static_key_false(¶virt_spinlocks_enabled))
+ return NOTIFY_NEXT;
+#endif
+
if (!static_key_false(¶virt_unfairlocks_enabled))
return NOTIFY_NEXT;
@@ -607,6 +670,14 @@ static enum exitval unfair_get_lock(struct qspinlock *lock, struct qnode *node,
int qhead;
struct qnode *next;
+#ifdef CONFIG_PARAVIRT_SPINLOCKS
+ /*
+ * Disable waiter lock stealing if PV spinlock is enabled
+ */
+ if (static_key_false(¶virt_spinlocks_enabled))
+ return NORMAL_EXIT;
+#endif
+
if (!static_key_false(¶virt_unfairlocks_enabled) ||
((count & node->lsteal_mask) != node->lsteal_mask))
return NORMAL_EXIT;
@@ -675,9 +746,6 @@ static enum exitval unfair_get_lock(struct qspinlock *lock, struct qnode *node,
}
#else /* CONFIG_PARAVIRT_UNFAIR_LOCKS */
-#define DEF_LOOP_CNT(c)
-#define INC_LOOP_CNT(c)
-#define LOOP_CNT(c) 0
static void unfair_init_vars(struct qnode *node) {}
static void unfair_set_vars(struct qnode *node, struct qnode *prev,
@@ -748,6 +816,7 @@ static noinline void queue_spin_lock_slowerpath(struct qspinlock *lock,
struct qnode *next;
u32 prev_qcode;
enum exitval exitval;
+ DEF_LOOP_CNT(hcnt);
/*
* Exchange current copy of the queue node code
@@ -767,6 +836,7 @@ static noinline void queue_spin_lock_slowerpath(struct qspinlock *lock,
DEF_LOOP_CNT(cnt);
unfair_set_vars(node, prev, prev_qcode);
+ pv_set_prev(&node->pv, prev);
ACCESS_ONCE(prev->next) = node;
/*
* Wait until the queue head flag is on
@@ -780,13 +850,17 @@ static noinline void queue_spin_lock_slowerpath(struct qspinlock *lock,
goto release_node;
else if (unlikely(exitval == NOTIFY_NEXT))
goto notify_next;
+ pv_queue_spin_check(&node->pv, LOOP_CNT(&cnt));
} while (!ACCESS_ONCE(node->qhead));
+ } else {
+ ACCESS_ONCE(node->qhead) = true;
}
/*
* At the head of the wait queue now
*/
for (;; arch_mutex_cpu_relax()) {
+ INC_LOOP_CNT(hcnt);
qsval = atomic_read(&lock->qlcode);
if (qsval & _QLOCK_LOCK_MASK)
continue; /* Lock not available yet */
@@ -820,6 +894,12 @@ static noinline void queue_spin_lock_slowerpath(struct qspinlock *lock,
} else if (queue_spin_trylock_and_clr_qcode(lock, my_qcode)) {
goto release_node;
}
+
+ /*
+ * Perform para-virtualization checks
+ */
+ pv_head_spin_check(&node->pv, LOOP_CNT(&hcnt), prev_qcode,
+ lock);
}
notify_next:
@@ -832,6 +912,7 @@ set_qhead:
/*
* The next one in queue is now at the head
*/
+ pv_next_node_check(&next->pv, lock);
ACCESS_ONCE(next->qhead) = true;
release_node:
@@ -871,6 +952,7 @@ void queue_spin_lock_slowpath(struct qspinlock *lock, int qsval)
node->qhead = false;
node->next = NULL;
unfair_init_vars(node);
+ pv_init_vars(&node->pv, cpu_nr);
/*
* The lock may be available at this point, try again if no task was
@@ -882,3 +964,47 @@ void queue_spin_lock_slowpath(struct qspinlock *lock, int qsval)
queue_spin_lock_slowerpath(lock, node, my_qcode);
}
EXPORT_SYMBOL(queue_spin_lock_slowpath);
+
+
+#ifdef CONFIG_PARAVIRT_SPINLOCKS
+/**
+ * queue_spin_unlock_slowpath - kick up the CPU of the queue head
+ * @lock : Pointer to queue spinlock structure
+ *
+ * The lock is released after finding the queue head to avoid racing
+ * condition between the queue head and the lock holder.
+ */
+void queue_spin_unlock_slowpath(struct qspinlock *lock)
+{
+ struct qnode *node, *prev;
+ u32 qcode = queue_get_qcode(lock);
+
+ /*
+ * Get the queue tail node
+ */
+ node = xlate_qcode(qcode);
+
+ /*
+ * Locate the queue head node by following the prev pointer from
+ * tail to head.
+ * It is assumed that the PV guests won't have that many CPUs so
+ * that it won't take a long time to follow the pointers.
+ */
+ while (!ACCESS_ONCE(node->qhead)) {
+ prev = pv_get_prev(&node->pv);
+ if (prev)
+ node = prev;
+ else
+ /*
+ * Delay a bit to allow the prev pointer to be set up
+ */
+ arch_mutex_cpu_relax();
+ }
+ /*
+ * Found the queue head, now release the lock before waking it up
+ */
+ __queue_spin_unlock(lock);
+ pv_kick_node(&node->pv);
+}
+EXPORT_SYMBOL(queue_spin_unlock_slowpath);
+#endif /* CONFIG_PARAVIRT_SPINLOCKS */
--
1.7.1
^ permalink raw reply related [flat|nested] 109+ messages in thread
* [PATCH v8 09/10] pvqspinlock, x86: Enable qspinlock PV support for KVM
2014-04-02 13:27 [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support Waiman Long
` (15 preceding siblings ...)
2014-04-02 13:27 ` [PATCH v8 09/10] pvqspinlock, x86: Enable qspinlock PV support for KVM Waiman Long
@ 2014-04-02 13:27 ` Waiman Long
2014-04-02 13:27 ` [PATCH v8 10/10] pvqspinlock, x86: Enable qspinlock PV support for XEN Waiman Long
` (5 subsequent siblings)
22 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-02 13:27 UTC (permalink / raw)
To: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, Peter Zijlstra
Cc: linux-arch, x86, linux-kernel, virtualization, xen-devel, kvm,
Paolo Bonzini, Konrad Rzeszutek Wilk, Paul E. McKenney,
Rik van Riel, Linus Torvalds, Raghavendra K T, David Vrabel,
Oleg Nesterov, Gleb Natapov, Aswin Chandramouleeswaran,
Scott J Norton, Chegu Vinod, Waiman Long
This patch adds the necessary KVM specific code to allow KVM to support
the sleeping and CPU kicking operations needed by the queue spinlock PV
code.
Two KVM guests of 20 CPU cores (2 nodes) were created for performance
testing in one of the following three configurations:
1) Only 1 VM is active
2) Both VMs are active and they share the same 20 physical CPUs
(200% overcommit)
3) Both VMs are active and they shares 30 physical CPUs (10 delicated
and 10 shared - 133% overcommit)
The tests run included the disk workload of the AIM7 benchmark
on both ext4 and xfs RAM disks at 3000 users on a 3.14-rc8 based
kernel. A kernel compilation test was also run and the execution
times were noted. With to VMs running, the "idle=poll" kernel option
was added to simulate a busy guest. The entry "unfair + PV qspinlock"
below means that both the unfair lock and PV spinlock configuration
options were turned on.
AIM7 XFS Disk Test (no overcommit)
kernel JPM Real Time Sys Time Usr Time
----- --- --------- -------- --------
PV ticketlock 2380952 7.56 107.34 5.65
qspinlock 2400000 7.50 105.68 5.68
PV qspinlock 2390438 7.53 102.52 5.48
unfair qspinloc 2432432 7.40 105.30 5.72
unfair + PV qspinlock 2340702 7.69 107.67 5.65
AIM7 XFS Disk Test (133% overcommit)
kernel JPM Real Time Sys Time Usr Time
----- --- --------- -------- --------
PV ticketlock 1137081 15.83 213.29 13.03
qspinlock 1132075 15.90 221.92 13.92
PV qspinlock 1097561 16.40 229.30 13.72
unfair qspinloc 1138520 15.81 220.13 13.10
unfair + PV qspinlock 1118707 16.09 225.08 13.25
AIM7 XFS Disk Test (200% overcommit)
kernel JPM Real Time Sys Time Usr Time
----- --- --------- -------- --------
PV ticketlock 577108 31.19 447.10 26.60
qspinlock 117493 153.20 1006.06 59.60
PV qspinlock 568361 31.67 402.69 25.08
unfair qspinloc 604432 29.78 402.20 26.17
unfair + PV qspinlock 629591 28.59 364.56 23.74
AIM7 EXT4 Disk Test (no overcommit)
kernel JPM Real Time Sys Time Usr Time
----- --- --------- -------- --------
PV ticketlock 1284797 14.01 172.90 5.59
qspinlock 1169591 15.39 177.13 5.62
PV qspinlock 1243953 14.47 179.86 5.34
unfair qspinloc 1474201 12.21 145.08 5.50
unfair + PV qspinlock 1486375 12.11 146.55 5.58
AIM7 EXT4 Disk Test (133% overcommit)
kernel JPM Real Time Sys Time Usr Time
----- --- --------- -------- --------
PV ticketlock 126130 142.71 2534.69 18.23
qspinlock 119792 150.26 2767.86 24.32
PV qspinlock 116928 153.94 2804.52 20.21
unfair qspinloc 877192 20.52 262.69 10.80
unfair + PV qspinlock 740741 24.30 328.64 12.29
AIM7 EXT4 Disk Test (200% overcommit)
kernel JPM Real Time Sys Time Usr Time
----- --- --------- -------- --------
PV ticketlock 100880 178.43 3108.33 35.78
qspinlock 54995 327.30 5023.58 54.73
PV qspinlock 104100 172.91 2947.03 33.69
unfair qspinloc 390033 46.15 612.80 27.08
unfair + PV qspinlock 357640 50.33 670.15 29.22
The kernel build test (make -j 20) results are as follows:
(no overcommit)
kernel Real Time Sys Time Usr Time
----- --------- -------- --------
PV ticketlock 8m42.284s 17m2.638s 117m6.862s
qspinlock 8m56.907s 16m34.614s 117m28.756s
PV qspinlock 8m30.477s 16m51.550s 117m28.743s
unfair qspinlock 9m5.152s 16m48.353s 117m50.292s
unfair + PV qspinlock 8m41.729s 16m51.905s 117m20.809s
(133% overcommit)
kernel Real Time Sys Time Usr Time
----- --------- -------- --------
PV ticketlock 13m8.703s 32m14.437s 187m34.016s
qspinlock 13m3.169s 32m9.641s 186m40.085s
PV qspinlock 12m53.279s 32m16.687s 186m32.541s
unfair qspinlock 12m56.707s 31m55.581s 187m45.494s
unfair + PV qspinlock 12m46.688s 32m5.035s 186m15.042s
(200% overcommit)
kernel Real Time Sys Time Usr Time
----- --------- -------- --------
PV ticketlock 20m9.236s 41m35.786s 283m56.333s
qspinlock 26m41.294s 74m55.585s 346m31.981s
PV qspinlock 20m14.312s 41m34.621s 283m50.145s
unfair qspinlock 19m57.384s 40m40.880s 282m54.679s
unfair + PV qspinlock 20m17.564s 41m33.687s 283m1.035s
In term of spinlock contention, the ordering of the 3 workloads are:
kernel build < AIM7 disk xfs < AIM7 disk ext4
With no overcommit, the PV code and unfair lock doesn't differ that
much from the plain qspinlock with the exception of the AIM7 disk
ext4 test which has high spinlock contention.
With 133% overcommit, there were some performance benefit with PV
and unfair lock. With heavy spinlock contention in the ext4 test,
unfair lock performed much better than the rests.
With 200% overcommit, we saw even more benefit with PV and unfair
locks. Again unfair lock provided a much better performance boost
with heavy spinlock contention.
Signed-off-by: Waiman Long <Waiman.Long@hp.com>
---
arch/x86/kernel/kvm.c | 111 +++++++++++++++++++++++++++++++++++++++++++++++++
kernel/Kconfig.locks | 2 +-
2 files changed, 112 insertions(+), 1 deletions(-)
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index 8e646a7..7d97e58 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -568,6 +568,7 @@ static void kvm_kick_cpu(int cpu)
kvm_hypercall2(KVM_HC_KICK_CPU, flags, apicid);
}
+#ifndef CONFIG_QUEUE_SPINLOCK
enum kvm_contention_stat {
TAKEN_SLOW,
TAKEN_SLOW_PICKUP,
@@ -795,6 +796,110 @@ static void kvm_unlock_kick(struct arch_spinlock *lock, __ticket_t ticket)
}
}
}
+#else /* !CONFIG_QUEUE_SPINLOCK */
+
+#ifdef CONFIG_KVM_DEBUG_FS
+static struct dentry *d_spin_debug;
+static struct dentry *d_kvm_debug;
+static u32 kick_stats; /* CPU kick count */
+static u32 kick_nohalt_stats; /* Kick but not halt count */
+static u32 halt_qhead_stats; /* Queue head halting count */
+static u32 halt_qnode_stats; /* Queue node halting count */
+static u32 wake_kick_stats; /* Wakeup by kicking count */
+static u32 wake_spur_stats; /* Spurious wakeup count */
+
+static int __init kvm_spinlock_debugfs(void)
+{
+ d_kvm_debug = debugfs_create_dir("kvm-guest", NULL);
+ if (!d_kvm_debug) {
+ printk(KERN_WARNING
+ "Could not create 'kvm' debugfs directory\n");
+ return -ENOMEM;
+ }
+ d_spin_debug = debugfs_create_dir("spinlocks", d_kvm_debug);
+
+ debugfs_create_u32("kick_stats", 0644, d_spin_debug, &kick_stats);
+ debugfs_create_u32("kick_nohalt_stats",
+ 0644, d_spin_debug, &kick_nohalt_stats);
+ debugfs_create_u32("halt_qhead_stats",
+ 0644, d_spin_debug, &halt_qhead_stats);
+ debugfs_create_u32("halt_qnode_stats",
+ 0644, d_spin_debug, &halt_qnode_stats);
+ debugfs_create_u32("wake_kick_stats",
+ 0644, d_spin_debug, &wake_kick_stats);
+ debugfs_create_u32("wake_spur_stats",
+ 0644, d_spin_debug, &wake_spur_stats);
+ return 0;
+}
+
+static inline void kvm_kick_stats(void)
+{
+ add_smp(&kick_stats, 1);
+}
+
+static inline void kvm_halt_stats(enum pv_lock_stats type)
+{
+ if (type == PV_HALT_QHEAD)
+ add_smp(&halt_qhead_stats, 1);
+ else /* type == PV_HALT_QNODE */
+ add_smp(&halt_qnode_stats, 1);
+}
+
+static inline void kvm_lock_stats(enum pv_lock_stats type)
+{
+ if (type == PV_WAKE_KICKED)
+ add_smp(&wake_kick_stats, 1);
+ else if (type == PV_WAKE_SPURIOUS)
+ add_smp(&wake_spur_stats, 1);
+ else /* type == PV_KICK_NOHALT */
+ add_smp(&kick_nohalt_stats, 1);
+}
+
+fs_initcall(kvm_spinlock_debugfs);
+
+#else /* CONFIG_KVM_DEBUG_FS */
+static inline void kvm_kick_stats(void)
+{
+}
+
+static inline void kvm_halt_stats(enum pv_lock_stats type)
+{
+}
+
+static inline void kvm_lock_stats(enum pv_lock_stats type)
+{
+}
+#endif /* CONFIG_KVM_DEBUG_FS */
+
+static void kvm_kick_cpu_stats(int cpu)
+{
+ kvm_kick_cpu(cpu);
+ kvm_kick_stats();
+}
+
+/*
+ * Halt the current CPU & release it back to the host
+ */
+static void kvm_hibernate(enum pv_lock_stats type)
+{
+ unsigned long flags;
+
+ if (in_nmi())
+ return;
+
+ kvm_halt_stats(type);
+ /*
+ * Make sure an interrupt handler can't upset things in a
+ * partially setup state.
+ */
+ local_irq_save(flags);
+ if (arch_irqs_disabled_flags(flags))
+ halt();
+ else
+ safe_halt();
+ local_irq_restore(flags);
+}
+#endif /* !CONFIG_QUEUE_SPINLOCK */
/*
* Setup pv_lock_ops to exploit KVM_FEATURE_PV_UNHALT if present.
@@ -807,8 +912,14 @@ void __init kvm_spinlock_init(void)
if (!kvm_para_has_feature(KVM_FEATURE_PV_UNHALT))
return;
+#ifdef CONFIG_QUEUE_SPINLOCK
+ pv_lock_ops.kick_cpu = kvm_kick_cpu_stats;
+ pv_lock_ops.hibernate = kvm_hibernate;
+ pv_lock_ops.lockstat = kvm_lock_stats;
+#else
pv_lock_ops.lock_spinning = PV_CALLEE_SAVE(kvm_lock_spinning);
pv_lock_ops.unlock_kick = kvm_unlock_kick;
+#endif
}
static __init int kvm_spinlock_init_jump(void)
diff --git a/kernel/Kconfig.locks b/kernel/Kconfig.locks
index f185584..a70fdeb 100644
--- a/kernel/Kconfig.locks
+++ b/kernel/Kconfig.locks
@@ -229,4 +229,4 @@ config ARCH_USE_QUEUE_SPINLOCK
config QUEUE_SPINLOCK
def_bool y if ARCH_USE_QUEUE_SPINLOCK
- depends on SMP && !PARAVIRT_SPINLOCKS
+ depends on SMP && (!PARAVIRT_SPINLOCKS || !XEN)
--
1.7.1
^ permalink raw reply related [flat|nested] 109+ messages in thread
* [PATCH v8 09/10] pvqspinlock, x86: Enable qspinlock PV support for KVM
2014-04-02 13:27 [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support Waiman Long
` (14 preceding siblings ...)
2014-04-02 13:27 ` Waiman Long
@ 2014-04-02 13:27 ` Waiman Long
2014-04-02 13:27 ` Waiman Long
` (6 subsequent siblings)
22 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-02 13:27 UTC (permalink / raw)
To: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, Peter Zijlstra
Cc: linux-arch, Waiman Long, Raghavendra K T, Gleb Natapov, kvm,
Aswin Chandramouleeswaran, Scott J Norton, x86, Paolo Bonzini,
linux-kernel, virtualization, Chegu Vinod, David Vrabel,
Oleg Nesterov, xen-devel, Paul E. McKenney, Linus Torvalds
This patch adds the necessary KVM specific code to allow KVM to support
the sleeping and CPU kicking operations needed by the queue spinlock PV
code.
Two KVM guests of 20 CPU cores (2 nodes) were created for performance
testing in one of the following three configurations:
1) Only 1 VM is active
2) Both VMs are active and they share the same 20 physical CPUs
(200% overcommit)
3) Both VMs are active and they shares 30 physical CPUs (10 delicated
and 10 shared - 133% overcommit)
The tests run included the disk workload of the AIM7 benchmark
on both ext4 and xfs RAM disks at 3000 users on a 3.14-rc8 based
kernel. A kernel compilation test was also run and the execution
times were noted. With to VMs running, the "idle=poll" kernel option
was added to simulate a busy guest. The entry "unfair + PV qspinlock"
below means that both the unfair lock and PV spinlock configuration
options were turned on.
AIM7 XFS Disk Test (no overcommit)
kernel JPM Real Time Sys Time Usr Time
----- --- --------- -------- --------
PV ticketlock 2380952 7.56 107.34 5.65
qspinlock 2400000 7.50 105.68 5.68
PV qspinlock 2390438 7.53 102.52 5.48
unfair qspinloc 2432432 7.40 105.30 5.72
unfair + PV qspinlock 2340702 7.69 107.67 5.65
AIM7 XFS Disk Test (133% overcommit)
kernel JPM Real Time Sys Time Usr Time
----- --- --------- -------- --------
PV ticketlock 1137081 15.83 213.29 13.03
qspinlock 1132075 15.90 221.92 13.92
PV qspinlock 1097561 16.40 229.30 13.72
unfair qspinloc 1138520 15.81 220.13 13.10
unfair + PV qspinlock 1118707 16.09 225.08 13.25
AIM7 XFS Disk Test (200% overcommit)
kernel JPM Real Time Sys Time Usr Time
----- --- --------- -------- --------
PV ticketlock 577108 31.19 447.10 26.60
qspinlock 117493 153.20 1006.06 59.60
PV qspinlock 568361 31.67 402.69 25.08
unfair qspinloc 604432 29.78 402.20 26.17
unfair + PV qspinlock 629591 28.59 364.56 23.74
AIM7 EXT4 Disk Test (no overcommit)
kernel JPM Real Time Sys Time Usr Time
----- --- --------- -------- --------
PV ticketlock 1284797 14.01 172.90 5.59
qspinlock 1169591 15.39 177.13 5.62
PV qspinlock 1243953 14.47 179.86 5.34
unfair qspinloc 1474201 12.21 145.08 5.50
unfair + PV qspinlock 1486375 12.11 146.55 5.58
AIM7 EXT4 Disk Test (133% overcommit)
kernel JPM Real Time Sys Time Usr Time
----- --- --------- -------- --------
PV ticketlock 126130 142.71 2534.69 18.23
qspinlock 119792 150.26 2767.86 24.32
PV qspinlock 116928 153.94 2804.52 20.21
unfair qspinloc 877192 20.52 262.69 10.80
unfair + PV qspinlock 740741 24.30 328.64 12.29
AIM7 EXT4 Disk Test (200% overcommit)
kernel JPM Real Time Sys Time Usr Time
----- --- --------- -------- --------
PV ticketlock 100880 178.43 3108.33 35.78
qspinlock 54995 327.30 5023.58 54.73
PV qspinlock 104100 172.91 2947.03 33.69
unfair qspinloc 390033 46.15 612.80 27.08
unfair + PV qspinlock 357640 50.33 670.15 29.22
The kernel build test (make -j 20) results are as follows:
(no overcommit)
kernel Real Time Sys Time Usr Time
----- --------- -------- --------
PV ticketlock 8m42.284s 17m2.638s 117m6.862s
qspinlock 8m56.907s 16m34.614s 117m28.756s
PV qspinlock 8m30.477s 16m51.550s 117m28.743s
unfair qspinlock 9m5.152s 16m48.353s 117m50.292s
unfair + PV qspinlock 8m41.729s 16m51.905s 117m20.809s
(133% overcommit)
kernel Real Time Sys Time Usr Time
----- --------- -------- --------
PV ticketlock 13m8.703s 32m14.437s 187m34.016s
qspinlock 13m3.169s 32m9.641s 186m40.085s
PV qspinlock 12m53.279s 32m16.687s 186m32.541s
unfair qspinlock 12m56.707s 31m55.581s 187m45.494s
unfair + PV qspinlock 12m46.688s 32m5.035s 186m15.042s
(200% overcommit)
kernel Real Time Sys Time Usr Time
----- --------- -------- --------
PV ticketlock 20m9.236s 41m35.786s 283m56.333s
qspinlock 26m41.294s 74m55.585s 346m31.981s
PV qspinlock 20m14.312s 41m34.621s 283m50.145s
unfair qspinlock 19m57.384s 40m40.880s 282m54.679s
unfair + PV qspinlock 20m17.564s 41m33.687s 283m1.035s
In term of spinlock contention, the ordering of the 3 workloads are:
kernel build < AIM7 disk xfs < AIM7 disk ext4
With no overcommit, the PV code and unfair lock doesn't differ that
much from the plain qspinlock with the exception of the AIM7 disk
ext4 test which has high spinlock contention.
With 133% overcommit, there were some performance benefit with PV
and unfair lock. With heavy spinlock contention in the ext4 test,
unfair lock performed much better than the rests.
With 200% overcommit, we saw even more benefit with PV and unfair
locks. Again unfair lock provided a much better performance boost
with heavy spinlock contention.
Signed-off-by: Waiman Long <Waiman.Long@hp.com>
---
arch/x86/kernel/kvm.c | 111 +++++++++++++++++++++++++++++++++++++++++++++++++
kernel/Kconfig.locks | 2 +-
2 files changed, 112 insertions(+), 1 deletions(-)
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index 8e646a7..7d97e58 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -568,6 +568,7 @@ static void kvm_kick_cpu(int cpu)
kvm_hypercall2(KVM_HC_KICK_CPU, flags, apicid);
}
+#ifndef CONFIG_QUEUE_SPINLOCK
enum kvm_contention_stat {
TAKEN_SLOW,
TAKEN_SLOW_PICKUP,
@@ -795,6 +796,110 @@ static void kvm_unlock_kick(struct arch_spinlock *lock, __ticket_t ticket)
}
}
}
+#else /* !CONFIG_QUEUE_SPINLOCK */
+
+#ifdef CONFIG_KVM_DEBUG_FS
+static struct dentry *d_spin_debug;
+static struct dentry *d_kvm_debug;
+static u32 kick_stats; /* CPU kick count */
+static u32 kick_nohalt_stats; /* Kick but not halt count */
+static u32 halt_qhead_stats; /* Queue head halting count */
+static u32 halt_qnode_stats; /* Queue node halting count */
+static u32 wake_kick_stats; /* Wakeup by kicking count */
+static u32 wake_spur_stats; /* Spurious wakeup count */
+
+static int __init kvm_spinlock_debugfs(void)
+{
+ d_kvm_debug = debugfs_create_dir("kvm-guest", NULL);
+ if (!d_kvm_debug) {
+ printk(KERN_WARNING
+ "Could not create 'kvm' debugfs directory\n");
+ return -ENOMEM;
+ }
+ d_spin_debug = debugfs_create_dir("spinlocks", d_kvm_debug);
+
+ debugfs_create_u32("kick_stats", 0644, d_spin_debug, &kick_stats);
+ debugfs_create_u32("kick_nohalt_stats",
+ 0644, d_spin_debug, &kick_nohalt_stats);
+ debugfs_create_u32("halt_qhead_stats",
+ 0644, d_spin_debug, &halt_qhead_stats);
+ debugfs_create_u32("halt_qnode_stats",
+ 0644, d_spin_debug, &halt_qnode_stats);
+ debugfs_create_u32("wake_kick_stats",
+ 0644, d_spin_debug, &wake_kick_stats);
+ debugfs_create_u32("wake_spur_stats",
+ 0644, d_spin_debug, &wake_spur_stats);
+ return 0;
+}
+
+static inline void kvm_kick_stats(void)
+{
+ add_smp(&kick_stats, 1);
+}
+
+static inline void kvm_halt_stats(enum pv_lock_stats type)
+{
+ if (type == PV_HALT_QHEAD)
+ add_smp(&halt_qhead_stats, 1);
+ else /* type == PV_HALT_QNODE */
+ add_smp(&halt_qnode_stats, 1);
+}
+
+static inline void kvm_lock_stats(enum pv_lock_stats type)
+{
+ if (type == PV_WAKE_KICKED)
+ add_smp(&wake_kick_stats, 1);
+ else if (type == PV_WAKE_SPURIOUS)
+ add_smp(&wake_spur_stats, 1);
+ else /* type == PV_KICK_NOHALT */
+ add_smp(&kick_nohalt_stats, 1);
+}
+
+fs_initcall(kvm_spinlock_debugfs);
+
+#else /* CONFIG_KVM_DEBUG_FS */
+static inline void kvm_kick_stats(void)
+{
+}
+
+static inline void kvm_halt_stats(enum pv_lock_stats type)
+{
+}
+
+static inline void kvm_lock_stats(enum pv_lock_stats type)
+{
+}
+#endif /* CONFIG_KVM_DEBUG_FS */
+
+static void kvm_kick_cpu_stats(int cpu)
+{
+ kvm_kick_cpu(cpu);
+ kvm_kick_stats();
+}
+
+/*
+ * Halt the current CPU & release it back to the host
+ */
+static void kvm_hibernate(enum pv_lock_stats type)
+{
+ unsigned long flags;
+
+ if (in_nmi())
+ return;
+
+ kvm_halt_stats(type);
+ /*
+ * Make sure an interrupt handler can't upset things in a
+ * partially setup state.
+ */
+ local_irq_save(flags);
+ if (arch_irqs_disabled_flags(flags))
+ halt();
+ else
+ safe_halt();
+ local_irq_restore(flags);
+}
+#endif /* !CONFIG_QUEUE_SPINLOCK */
/*
* Setup pv_lock_ops to exploit KVM_FEATURE_PV_UNHALT if present.
@@ -807,8 +912,14 @@ void __init kvm_spinlock_init(void)
if (!kvm_para_has_feature(KVM_FEATURE_PV_UNHALT))
return;
+#ifdef CONFIG_QUEUE_SPINLOCK
+ pv_lock_ops.kick_cpu = kvm_kick_cpu_stats;
+ pv_lock_ops.hibernate = kvm_hibernate;
+ pv_lock_ops.lockstat = kvm_lock_stats;
+#else
pv_lock_ops.lock_spinning = PV_CALLEE_SAVE(kvm_lock_spinning);
pv_lock_ops.unlock_kick = kvm_unlock_kick;
+#endif
}
static __init int kvm_spinlock_init_jump(void)
diff --git a/kernel/Kconfig.locks b/kernel/Kconfig.locks
index f185584..a70fdeb 100644
--- a/kernel/Kconfig.locks
+++ b/kernel/Kconfig.locks
@@ -229,4 +229,4 @@ config ARCH_USE_QUEUE_SPINLOCK
config QUEUE_SPINLOCK
def_bool y if ARCH_USE_QUEUE_SPINLOCK
- depends on SMP && !PARAVIRT_SPINLOCKS
+ depends on SMP && (!PARAVIRT_SPINLOCKS || !XEN)
--
1.7.1
^ permalink raw reply related [flat|nested] 109+ messages in thread
* [PATCH v8 10/10] pvqspinlock, x86: Enable qspinlock PV support for XEN
2014-04-02 13:27 [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support Waiman Long
` (17 preceding siblings ...)
2014-04-02 13:27 ` [PATCH v8 10/10] pvqspinlock, x86: Enable qspinlock PV support for XEN Waiman Long
@ 2014-04-02 13:27 ` Waiman Long
2014-04-02 14:39 ` Konrad Rzeszutek Wilk
2014-04-02 14:39 ` Konrad Rzeszutek Wilk
2014-04-02 14:32 ` Konrad Rzeszutek Wilk
` (3 subsequent siblings)
22 siblings, 2 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-02 13:27 UTC (permalink / raw)
To: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, Peter Zijlstra
Cc: linux-arch, x86, linux-kernel, virtualization, xen-devel, kvm,
Paolo Bonzini, Konrad Rzeszutek Wilk, Paul E. McKenney,
Rik van Riel, Linus Torvalds, Raghavendra K T, David Vrabel,
Oleg Nesterov, Gleb Natapov, Aswin Chandramouleeswaran,
Scott J Norton, Chegu Vinod, Waiman Long
This patch adds the necessary KVM specific code to allow XEN to support
the sleeping and CPU kicking operations needed by the queue spinlock PV
code.
Signed-off-by: Waiman Long <Waiman.Long@hp.com>
---
arch/x86/xen/spinlock.c | 119 +++++++++++++++++++++++++++++++++++++++++++++--
kernel/Kconfig.locks | 2 +-
2 files changed, 115 insertions(+), 6 deletions(-)
diff --git a/arch/x86/xen/spinlock.c b/arch/x86/xen/spinlock.c
index 06f4a64..6bbe798 100644
--- a/arch/x86/xen/spinlock.c
+++ b/arch/x86/xen/spinlock.c
@@ -17,6 +17,12 @@
#include "xen-ops.h"
#include "debugfs.h"
+static DEFINE_PER_CPU(int, lock_kicker_irq) = -1;
+static DEFINE_PER_CPU(char *, irq_name);
+static bool xen_pvspin = true;
+
+#ifndef CONFIG_QUEUE_SPINLOCK
+
enum xen_contention_stat {
TAKEN_SLOW,
TAKEN_SLOW_PICKUP,
@@ -100,12 +106,9 @@ struct xen_lock_waiting {
__ticket_t want;
};
-static DEFINE_PER_CPU(int, lock_kicker_irq) = -1;
-static DEFINE_PER_CPU(char *, irq_name);
static DEFINE_PER_CPU(struct xen_lock_waiting, lock_waiting);
static cpumask_t waiting_cpus;
-static bool xen_pvspin = true;
__visible void xen_lock_spinning(struct arch_spinlock *lock, __ticket_t want)
{
int irq = __this_cpu_read(lock_kicker_irq);
@@ -213,6 +216,94 @@ static void xen_unlock_kick(struct arch_spinlock *lock, __ticket_t next)
}
}
+#else /* CONFIG_QUEUE_SPINLOCK */
+
+#ifdef CONFIG_XEN_DEBUG_FS
+static u32 kick_stats; /* CPU kick count */
+static u32 kick_nohalt_stats; /* Kick but not halt count */
+static u32 halt_qhead_stats; /* Queue head halting count */
+static u32 halt_qnode_stats; /* Queue node halting count */
+static u32 wake_kick_stats; /* Wakeup by kicking count */
+static u32 wake_spur_stats; /* Spurious wakeup count */
+
+static inline void xen_kick_stats(void)
+{
+ add_smp(&kick_stats, 1);
+}
+
+static inline void xen_halt_stats(enum pv_lock_stats type)
+{
+ if (type == PV_HALT_QHEAD)
+ add_smp(&halt_qhead_stats, 1);
+ else /* type == PV_HALT_QNODE */
+ add_smp(&halt_qnode_stats, 1);
+}
+
+static inline void xen_lock_stats(enum pv_lock_stats type)
+{
+ if (type == PV_WAKE_KICKED)
+ add_smp(&wake_kick_stats, 1);
+ else if (type == PV_WAKE_SPURIOUS)
+ add_smp(&wake_spur_stats, 1);
+ else /* type == PV_KICK_NOHALT */
+ add_smp(&kick_nohalt_stats, 1);
+}
+#else /* CONFIG_XEN_DEBUG_FS */
+static inline void xen_kick_stats(void)
+{
+}
+
+static inline void xen_halt_stats(enum pv_lock_stats type)
+{
+}
+
+static inline void xen_lock_stats(enum pv_lock_stats type)
+{
+}
+#endif /* CONFIG_XEN_DEBUG_FS */
+
+static void xen_kick_cpu(int cpu)
+{
+ xen_send_IPI_one(cpu, XEN_SPIN_UNLOCK_VECTOR);
+ xen_kick_stats();
+}
+
+/*
+ * Halt the current CPU & release it back to the host
+ */
+static void xen_hibernate(enum pv_lock_stats type)
+{
+ int irq = __this_cpu_read(lock_kicker_irq);
+ unsigned long flags;
+
+ /* If kicker interrupts not initialized yet, just spin */
+ if (irq == -1)
+ return;
+
+ /*
+ * Make sure an interrupt handler can't upset things in a
+ * partially setup state.
+ */
+ local_irq_save(flags);
+
+ xen_halt_stats(type);
+ /* clear pending */
+ xen_clear_irq_pending(irq);
+
+ /* Allow interrupts while blocked */
+ local_irq_restore(flags);
+
+ /*
+ * If an interrupt happens here, it will leave the wakeup irq
+ * pending, which will cause xen_poll_irq() to return
+ * immediately.
+ */
+
+ /* Block until irq becomes pending (or perhaps a spurious wakeup) */
+ xen_poll_irq(irq);
+}
+#endif /* CONFIG_QUEUE_SPINLOCK */
+
static irqreturn_t dummy_handler(int irq, void *dev_id)
{
BUG();
@@ -258,7 +349,6 @@ void xen_uninit_lock_cpu(int cpu)
per_cpu(irq_name, cpu) = NULL;
}
-
/*
* Our init of PV spinlocks is split in two init functions due to us
* using paravirt patching and jump labels patching and having to do
@@ -275,8 +365,14 @@ void __init xen_init_spinlocks(void)
return;
}
+#ifdef CONFIG_QUEUE_SPINLOCK
+ pv_lock_ops.kick_cpu = xen_kick_cpu;
+ pv_lock_ops.hibernate = xen_hibernate;
+ pv_lock_ops.lockstat = xen_lock_stats;
+#else
pv_lock_ops.lock_spinning = PV_CALLEE_SAVE(xen_lock_spinning);
pv_lock_ops.unlock_kick = xen_unlock_kick;
+#endif
}
/*
@@ -318,6 +414,7 @@ static int __init xen_spinlock_debugfs(void)
d_spin_debug = debugfs_create_dir("spinlocks", d_xen);
+#ifndef CONFIG_QUEUE_SPINLOCK
debugfs_create_u8("zero_stats", 0644, d_spin_debug, &zero_stats);
debugfs_create_u32("taken_slow", 0444, d_spin_debug,
@@ -337,7 +434,19 @@ static int __init xen_spinlock_debugfs(void)
debugfs_create_u32_array("histo_blocked", 0444, d_spin_debug,
spinlock_stats.histo_spin_blocked, HISTO_BUCKETS + 1);
-
+#else /* CONFIG_QUEUE_SPINLOCK */
+ debugfs_create_u32("kick_stats", 0644, d_spin_debug, &kick_stats);
+ debugfs_create_u32("kick_nohalt_stats",
+ 0644, d_spin_debug, &kick_nohalt_stats);
+ debugfs_create_u32("halt_qhead_stats",
+ 0644, d_spin_debug, &halt_qhead_stats);
+ debugfs_create_u32("halt_qnode_stats",
+ 0644, d_spin_debug, &halt_qnode_stats);
+ debugfs_create_u32("wake_kick_stats",
+ 0644, d_spin_debug, &wake_kick_stats);
+ debugfs_create_u32("wake_spur_stats",
+ 0644, d_spin_debug, &wake_spur_stats);
+#endif /* CONFIG_QUEUE_SPINLOCK */
return 0;
}
fs_initcall(xen_spinlock_debugfs);
diff --git a/kernel/Kconfig.locks b/kernel/Kconfig.locks
index a70fdeb..451e392 100644
--- a/kernel/Kconfig.locks
+++ b/kernel/Kconfig.locks
@@ -229,4 +229,4 @@ config ARCH_USE_QUEUE_SPINLOCK
config QUEUE_SPINLOCK
def_bool y if ARCH_USE_QUEUE_SPINLOCK
- depends on SMP && (!PARAVIRT_SPINLOCKS || !XEN)
+ depends on SMP
--
1.7.1
^ permalink raw reply related [flat|nested] 109+ messages in thread
* [PATCH v8 10/10] pvqspinlock, x86: Enable qspinlock PV support for XEN
2014-04-02 13:27 [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support Waiman Long
` (16 preceding siblings ...)
2014-04-02 13:27 ` Waiman Long
@ 2014-04-02 13:27 ` Waiman Long
2014-04-02 13:27 ` Waiman Long
` (4 subsequent siblings)
22 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-02 13:27 UTC (permalink / raw)
To: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, Peter Zijlstra
Cc: linux-arch, Waiman Long, Raghavendra K T, Gleb Natapov, kvm,
Aswin Chandramouleeswaran, Scott J Norton, x86, Paolo Bonzini,
linux-kernel, virtualization, Chegu Vinod, David Vrabel,
Oleg Nesterov, xen-devel, Paul E. McKenney, Linus Torvalds
This patch adds the necessary KVM specific code to allow XEN to support
the sleeping and CPU kicking operations needed by the queue spinlock PV
code.
Signed-off-by: Waiman Long <Waiman.Long@hp.com>
---
arch/x86/xen/spinlock.c | 119 +++++++++++++++++++++++++++++++++++++++++++++--
kernel/Kconfig.locks | 2 +-
2 files changed, 115 insertions(+), 6 deletions(-)
diff --git a/arch/x86/xen/spinlock.c b/arch/x86/xen/spinlock.c
index 06f4a64..6bbe798 100644
--- a/arch/x86/xen/spinlock.c
+++ b/arch/x86/xen/spinlock.c
@@ -17,6 +17,12 @@
#include "xen-ops.h"
#include "debugfs.h"
+static DEFINE_PER_CPU(int, lock_kicker_irq) = -1;
+static DEFINE_PER_CPU(char *, irq_name);
+static bool xen_pvspin = true;
+
+#ifndef CONFIG_QUEUE_SPINLOCK
+
enum xen_contention_stat {
TAKEN_SLOW,
TAKEN_SLOW_PICKUP,
@@ -100,12 +106,9 @@ struct xen_lock_waiting {
__ticket_t want;
};
-static DEFINE_PER_CPU(int, lock_kicker_irq) = -1;
-static DEFINE_PER_CPU(char *, irq_name);
static DEFINE_PER_CPU(struct xen_lock_waiting, lock_waiting);
static cpumask_t waiting_cpus;
-static bool xen_pvspin = true;
__visible void xen_lock_spinning(struct arch_spinlock *lock, __ticket_t want)
{
int irq = __this_cpu_read(lock_kicker_irq);
@@ -213,6 +216,94 @@ static void xen_unlock_kick(struct arch_spinlock *lock, __ticket_t next)
}
}
+#else /* CONFIG_QUEUE_SPINLOCK */
+
+#ifdef CONFIG_XEN_DEBUG_FS
+static u32 kick_stats; /* CPU kick count */
+static u32 kick_nohalt_stats; /* Kick but not halt count */
+static u32 halt_qhead_stats; /* Queue head halting count */
+static u32 halt_qnode_stats; /* Queue node halting count */
+static u32 wake_kick_stats; /* Wakeup by kicking count */
+static u32 wake_spur_stats; /* Spurious wakeup count */
+
+static inline void xen_kick_stats(void)
+{
+ add_smp(&kick_stats, 1);
+}
+
+static inline void xen_halt_stats(enum pv_lock_stats type)
+{
+ if (type == PV_HALT_QHEAD)
+ add_smp(&halt_qhead_stats, 1);
+ else /* type == PV_HALT_QNODE */
+ add_smp(&halt_qnode_stats, 1);
+}
+
+static inline void xen_lock_stats(enum pv_lock_stats type)
+{
+ if (type == PV_WAKE_KICKED)
+ add_smp(&wake_kick_stats, 1);
+ else if (type == PV_WAKE_SPURIOUS)
+ add_smp(&wake_spur_stats, 1);
+ else /* type == PV_KICK_NOHALT */
+ add_smp(&kick_nohalt_stats, 1);
+}
+#else /* CONFIG_XEN_DEBUG_FS */
+static inline void xen_kick_stats(void)
+{
+}
+
+static inline void xen_halt_stats(enum pv_lock_stats type)
+{
+}
+
+static inline void xen_lock_stats(enum pv_lock_stats type)
+{
+}
+#endif /* CONFIG_XEN_DEBUG_FS */
+
+static void xen_kick_cpu(int cpu)
+{
+ xen_send_IPI_one(cpu, XEN_SPIN_UNLOCK_VECTOR);
+ xen_kick_stats();
+}
+
+/*
+ * Halt the current CPU & release it back to the host
+ */
+static void xen_hibernate(enum pv_lock_stats type)
+{
+ int irq = __this_cpu_read(lock_kicker_irq);
+ unsigned long flags;
+
+ /* If kicker interrupts not initialized yet, just spin */
+ if (irq == -1)
+ return;
+
+ /*
+ * Make sure an interrupt handler can't upset things in a
+ * partially setup state.
+ */
+ local_irq_save(flags);
+
+ xen_halt_stats(type);
+ /* clear pending */
+ xen_clear_irq_pending(irq);
+
+ /* Allow interrupts while blocked */
+ local_irq_restore(flags);
+
+ /*
+ * If an interrupt happens here, it will leave the wakeup irq
+ * pending, which will cause xen_poll_irq() to return
+ * immediately.
+ */
+
+ /* Block until irq becomes pending (or perhaps a spurious wakeup) */
+ xen_poll_irq(irq);
+}
+#endif /* CONFIG_QUEUE_SPINLOCK */
+
static irqreturn_t dummy_handler(int irq, void *dev_id)
{
BUG();
@@ -258,7 +349,6 @@ void xen_uninit_lock_cpu(int cpu)
per_cpu(irq_name, cpu) = NULL;
}
-
/*
* Our init of PV spinlocks is split in two init functions due to us
* using paravirt patching and jump labels patching and having to do
@@ -275,8 +365,14 @@ void __init xen_init_spinlocks(void)
return;
}
+#ifdef CONFIG_QUEUE_SPINLOCK
+ pv_lock_ops.kick_cpu = xen_kick_cpu;
+ pv_lock_ops.hibernate = xen_hibernate;
+ pv_lock_ops.lockstat = xen_lock_stats;
+#else
pv_lock_ops.lock_spinning = PV_CALLEE_SAVE(xen_lock_spinning);
pv_lock_ops.unlock_kick = xen_unlock_kick;
+#endif
}
/*
@@ -318,6 +414,7 @@ static int __init xen_spinlock_debugfs(void)
d_spin_debug = debugfs_create_dir("spinlocks", d_xen);
+#ifndef CONFIG_QUEUE_SPINLOCK
debugfs_create_u8("zero_stats", 0644, d_spin_debug, &zero_stats);
debugfs_create_u32("taken_slow", 0444, d_spin_debug,
@@ -337,7 +434,19 @@ static int __init xen_spinlock_debugfs(void)
debugfs_create_u32_array("histo_blocked", 0444, d_spin_debug,
spinlock_stats.histo_spin_blocked, HISTO_BUCKETS + 1);
-
+#else /* CONFIG_QUEUE_SPINLOCK */
+ debugfs_create_u32("kick_stats", 0644, d_spin_debug, &kick_stats);
+ debugfs_create_u32("kick_nohalt_stats",
+ 0644, d_spin_debug, &kick_nohalt_stats);
+ debugfs_create_u32("halt_qhead_stats",
+ 0644, d_spin_debug, &halt_qhead_stats);
+ debugfs_create_u32("halt_qnode_stats",
+ 0644, d_spin_debug, &halt_qnode_stats);
+ debugfs_create_u32("wake_kick_stats",
+ 0644, d_spin_debug, &wake_kick_stats);
+ debugfs_create_u32("wake_spur_stats",
+ 0644, d_spin_debug, &wake_spur_stats);
+#endif /* CONFIG_QUEUE_SPINLOCK */
return 0;
}
fs_initcall(xen_spinlock_debugfs);
diff --git a/kernel/Kconfig.locks b/kernel/Kconfig.locks
index a70fdeb..451e392 100644
--- a/kernel/Kconfig.locks
+++ b/kernel/Kconfig.locks
@@ -229,4 +229,4 @@ config ARCH_USE_QUEUE_SPINLOCK
config QUEUE_SPINLOCK
def_bool y if ARCH_USE_QUEUE_SPINLOCK
- depends on SMP && (!PARAVIRT_SPINLOCKS || !XEN)
+ depends on SMP
--
1.7.1
^ permalink raw reply related [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
2014-04-02 13:27 [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support Waiman Long
@ 2014-04-02 14:32 ` Konrad Rzeszutek Wilk
2014-04-02 13:27 ` Waiman Long
` (21 subsequent siblings)
22 siblings, 0 replies; 109+ messages in thread
From: Konrad Rzeszutek Wilk @ 2014-04-02 14:32 UTC (permalink / raw)
To: Waiman Long, Marcos Matsunaga
Cc: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, Peter Zijlstra,
linux-arch, x86, linux-kernel, virtualization, xen-devel, kvm,
Paolo Bonzini, Paul E. McKenney, Rik van Riel, Linus Torvalds,
Raghavendra K T, David Vrabel, Oleg Nesterov, Gleb Natapov,
Aswin Chandramouleeswaran, Scott J Norton, Chegu Vinod,
boris.ostrovsky
On Wed, Apr 02, 2014 at 09:27:29AM -0400, Waiman Long wrote:
> N.B. Sorry for the duplicate. This patch series were resent as the
> original one was rejected by the vger.kernel.org list server
> due to long header. There is no change in content.
>
> v7->v8:
> - Remove one unneeded atomic operation from the slowpath, thus
> improving performance.
> - Simplify some of the codes and add more comments.
> - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
> unfair lock.
> - Reduce unfair lock slowpath lock stealing frequency depending
> on its distance from the queue head.
> - Add performance data for IvyBridge-EX CPU.
FYI, your v7 patch with 32 VCPUs (on a 32 cpu socket machine) on an
HVM guest under Xen after a while stops working. The workload
is doing 'make -j32' on the Linux kernel.
Completely unresponsive. Thoughts?
(CC ing Marcos who had run the test)
>
> v6->v7:
> - Remove an atomic operation from the 2-task contending code
> - Shorten the names of some macros
> - Make the queue waiter to attempt to steal lock when unfair lock is
> enabled.
> - Remove lock holder kick from the PV code and fix a race condition
> - Run the unfair lock & PV code on overcommitted KVM guests to collect
> performance data.
>
> v5->v6:
> - Change the optimized 2-task contending code to make it fairer at the
> expense of a bit of performance.
> - Add a patch to support unfair queue spinlock for Xen.
> - Modify the PV qspinlock code to follow what was done in the PV
> ticketlock.
> - Add performance data for the unfair lock as well as the PV
> support code.
>
> v4->v5:
> - Move the optimized 2-task contending code to the generic file to
> enable more architectures to use it without code duplication.
> - Address some of the style-related comments by PeterZ.
> - Allow the use of unfair queue spinlock in a real para-virtualized
> execution environment.
> - Add para-virtualization support to the qspinlock code by ensuring
> that the lock holder and queue head stay alive as much as possible.
>
> v3->v4:
> - Remove debugging code and fix a configuration error
> - Simplify the qspinlock structure and streamline the code to make it
> perform a bit better
> - Add an x86 version of asm/qspinlock.h for holding x86 specific
> optimization.
> - Add an optimized x86 code path for 2 contending tasks to improve
> low contention performance.
>
> v2->v3:
> - Simplify the code by using numerous mode only without an unfair option.
> - Use the latest smp_load_acquire()/smp_store_release() barriers.
> - Move the queue spinlock code to kernel/locking.
> - Make the use of queue spinlock the default for x86-64 without user
> configuration.
> - Additional performance tuning.
>
> v1->v2:
> - Add some more comments to document what the code does.
> - Add a numerous CPU mode to support >= 16K CPUs
> - Add a configuration option to allow lock stealing which can further
> improve performance in many cases.
> - Enable wakeup of queue head CPU at unlock time for non-numerous
> CPU mode.
>
> This patch set has 3 different sections:
> 1) Patches 1-4: Introduces a queue-based spinlock implementation that
> can replace the default ticket spinlock without increasing the
> size of the spinlock data structure. As a result, critical kernel
> data structures that embed spinlock won't increase in size and
> break data alignments.
> 2) Patches 5-6: Enables the use of unfair queue spinlock in a
> para-virtualized execution environment. This can resolve some
> of the locking related performance issues due to the fact that
> the next CPU to get the lock may have been scheduled out for a
> period of time.
> 3) Patches 7-10: Enable qspinlock para-virtualization support
> by halting the waiting CPUs after spinning for a certain amount of
> time. The unlock code will detect the a sleeping waiter and wake it
> up. This is essentially the same logic as the PV ticketlock code.
>
> The queue spinlock has slightly better performance than the ticket
> spinlock in uncontended case. Its performance can be much better
> with moderate to heavy contention. This patch has the potential of
> improving the performance of all the workloads that have moderate to
> heavy spinlock contention.
>
> The queue spinlock is especially suitable for NUMA machines with at
> least 2 sockets, though noticeable performance benefit probably won't
> show up in machines with less than 4 sockets.
>
> The purpose of this patch set is not to solve any particular spinlock
> contention problems. Those need to be solved by refactoring the code
> to make more efficient use of the lock or finer granularity ones. The
> main purpose is to make the lock contention problems more tolerable
> until someone can spend the time and effort to fix them.
>
> To illustrate the performance benefit of the queue spinlock, the
> ebizzy benchmark was run with the -m option in two different computers:
>
> Test machine ticket-lock queue-lock
> ------------ ----------- ----------
> 4-socket 40-core 2316 rec/s 2899 rec/s
> Westmere-EX (HT off)
> 2-socket 12-core 2130 rec/s 2176 rec/s
> Westmere-EP (HT on)
>
> Waiman Long (10):
> qspinlock: A generic 4-byte queue spinlock implementation
> qspinlock, x86: Enable x86-64 to use queue spinlock
> qspinlock: More optimized code for smaller NR_CPUS
> qspinlock: Optimized code path for 2 contending tasks
> pvqspinlock, x86: Allow unfair spinlock in a PV guest
> pvqspinlock: Enable lock stealing in queue lock waiters
> pvqspinlock, x86: Rename paravirt_ticketlocks_enabled
> pvqspinlock, x86: Add qspinlock para-virtualization support
> pvqspinlock, x86: Enable qspinlock PV support for KVM
> pvqspinlock, x86: Enable qspinlock PV support for XEN
>
> arch/x86/Kconfig | 12 +
> arch/x86/include/asm/paravirt.h | 17 +-
> arch/x86/include/asm/paravirt_types.h | 16 +
> arch/x86/include/asm/pvqspinlock.h | 260 +++++++++
> arch/x86/include/asm/qspinlock.h | 191 +++++++
> arch/x86/include/asm/spinlock.h | 9 +-
> arch/x86/include/asm/spinlock_types.h | 4 +
> arch/x86/kernel/Makefile | 1 +
> arch/x86/kernel/kvm.c | 113 ++++-
> arch/x86/kernel/paravirt-spinlocks.c | 36 ++-
> arch/x86/xen/spinlock.c | 121 ++++-
> include/asm-generic/qspinlock.h | 126 ++++
> include/asm-generic/qspinlock_types.h | 63 ++
> kernel/Kconfig.locks | 7 +
> kernel/locking/Makefile | 1 +
> kernel/locking/qspinlock.c | 1010 +++++++++++++++++++++++++++++++++
> 16 files changed, 1975 insertions(+), 12 deletions(-)
> create mode 100644 arch/x86/include/asm/pvqspinlock.h
> create mode 100644 arch/x86/include/asm/qspinlock.h
> create mode 100644 include/asm-generic/qspinlock.h
> create mode 100644 include/asm-generic/qspinlock_types.h
> create mode 100644 kernel/locking/qspinlock.c
>
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
@ 2014-04-02 14:32 ` Konrad Rzeszutek Wilk
0 siblings, 0 replies; 109+ messages in thread
From: Konrad Rzeszutek Wilk @ 2014-04-02 14:32 UTC (permalink / raw)
To: Waiman Long, Marcos Matsunaga
Cc: x86, Gleb Natapov, Peter Zijlstra, virtualization,
H. Peter Anvin, Thomas Gleixner, linux-arch, kvm,
Raghavendra K T, Ingo Molnar, xen-devel, Paul E. McKenney,
Scott J Norton, Paolo Bonzini, Oleg Nesterov, boris.ostrovsky,
Aswin Chandramouleeswaran, Chegu Vinod, linux-kernel,
David Vrabel, Linus Torvalds
On Wed, Apr 02, 2014 at 09:27:29AM -0400, Waiman Long wrote:
> N.B. Sorry for the duplicate. This patch series were resent as the
> original one was rejected by the vger.kernel.org list server
> due to long header. There is no change in content.
>
> v7->v8:
> - Remove one unneeded atomic operation from the slowpath, thus
> improving performance.
> - Simplify some of the codes and add more comments.
> - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
> unfair lock.
> - Reduce unfair lock slowpath lock stealing frequency depending
> on its distance from the queue head.
> - Add performance data for IvyBridge-EX CPU.
FYI, your v7 patch with 32 VCPUs (on a 32 cpu socket machine) on an
HVM guest under Xen after a while stops working. The workload
is doing 'make -j32' on the Linux kernel.
Completely unresponsive. Thoughts?
(CC ing Marcos who had run the test)
>
> v6->v7:
> - Remove an atomic operation from the 2-task contending code
> - Shorten the names of some macros
> - Make the queue waiter to attempt to steal lock when unfair lock is
> enabled.
> - Remove lock holder kick from the PV code and fix a race condition
> - Run the unfair lock & PV code on overcommitted KVM guests to collect
> performance data.
>
> v5->v6:
> - Change the optimized 2-task contending code to make it fairer at the
> expense of a bit of performance.
> - Add a patch to support unfair queue spinlock for Xen.
> - Modify the PV qspinlock code to follow what was done in the PV
> ticketlock.
> - Add performance data for the unfair lock as well as the PV
> support code.
>
> v4->v5:
> - Move the optimized 2-task contending code to the generic file to
> enable more architectures to use it without code duplication.
> - Address some of the style-related comments by PeterZ.
> - Allow the use of unfair queue spinlock in a real para-virtualized
> execution environment.
> - Add para-virtualization support to the qspinlock code by ensuring
> that the lock holder and queue head stay alive as much as possible.
>
> v3->v4:
> - Remove debugging code and fix a configuration error
> - Simplify the qspinlock structure and streamline the code to make it
> perform a bit better
> - Add an x86 version of asm/qspinlock.h for holding x86 specific
> optimization.
> - Add an optimized x86 code path for 2 contending tasks to improve
> low contention performance.
>
> v2->v3:
> - Simplify the code by using numerous mode only without an unfair option.
> - Use the latest smp_load_acquire()/smp_store_release() barriers.
> - Move the queue spinlock code to kernel/locking.
> - Make the use of queue spinlock the default for x86-64 without user
> configuration.
> - Additional performance tuning.
>
> v1->v2:
> - Add some more comments to document what the code does.
> - Add a numerous CPU mode to support >= 16K CPUs
> - Add a configuration option to allow lock stealing which can further
> improve performance in many cases.
> - Enable wakeup of queue head CPU at unlock time for non-numerous
> CPU mode.
>
> This patch set has 3 different sections:
> 1) Patches 1-4: Introduces a queue-based spinlock implementation that
> can replace the default ticket spinlock without increasing the
> size of the spinlock data structure. As a result, critical kernel
> data structures that embed spinlock won't increase in size and
> break data alignments.
> 2) Patches 5-6: Enables the use of unfair queue spinlock in a
> para-virtualized execution environment. This can resolve some
> of the locking related performance issues due to the fact that
> the next CPU to get the lock may have been scheduled out for a
> period of time.
> 3) Patches 7-10: Enable qspinlock para-virtualization support
> by halting the waiting CPUs after spinning for a certain amount of
> time. The unlock code will detect the a sleeping waiter and wake it
> up. This is essentially the same logic as the PV ticketlock code.
>
> The queue spinlock has slightly better performance than the ticket
> spinlock in uncontended case. Its performance can be much better
> with moderate to heavy contention. This patch has the potential of
> improving the performance of all the workloads that have moderate to
> heavy spinlock contention.
>
> The queue spinlock is especially suitable for NUMA machines with at
> least 2 sockets, though noticeable performance benefit probably won't
> show up in machines with less than 4 sockets.
>
> The purpose of this patch set is not to solve any particular spinlock
> contention problems. Those need to be solved by refactoring the code
> to make more efficient use of the lock or finer granularity ones. The
> main purpose is to make the lock contention problems more tolerable
> until someone can spend the time and effort to fix them.
>
> To illustrate the performance benefit of the queue spinlock, the
> ebizzy benchmark was run with the -m option in two different computers:
>
> Test machine ticket-lock queue-lock
> ------------ ----------- ----------
> 4-socket 40-core 2316 rec/s 2899 rec/s
> Westmere-EX (HT off)
> 2-socket 12-core 2130 rec/s 2176 rec/s
> Westmere-EP (HT on)
>
> Waiman Long (10):
> qspinlock: A generic 4-byte queue spinlock implementation
> qspinlock, x86: Enable x86-64 to use queue spinlock
> qspinlock: More optimized code for smaller NR_CPUS
> qspinlock: Optimized code path for 2 contending tasks
> pvqspinlock, x86: Allow unfair spinlock in a PV guest
> pvqspinlock: Enable lock stealing in queue lock waiters
> pvqspinlock, x86: Rename paravirt_ticketlocks_enabled
> pvqspinlock, x86: Add qspinlock para-virtualization support
> pvqspinlock, x86: Enable qspinlock PV support for KVM
> pvqspinlock, x86: Enable qspinlock PV support for XEN
>
> arch/x86/Kconfig | 12 +
> arch/x86/include/asm/paravirt.h | 17 +-
> arch/x86/include/asm/paravirt_types.h | 16 +
> arch/x86/include/asm/pvqspinlock.h | 260 +++++++++
> arch/x86/include/asm/qspinlock.h | 191 +++++++
> arch/x86/include/asm/spinlock.h | 9 +-
> arch/x86/include/asm/spinlock_types.h | 4 +
> arch/x86/kernel/Makefile | 1 +
> arch/x86/kernel/kvm.c | 113 ++++-
> arch/x86/kernel/paravirt-spinlocks.c | 36 ++-
> arch/x86/xen/spinlock.c | 121 ++++-
> include/asm-generic/qspinlock.h | 126 ++++
> include/asm-generic/qspinlock_types.h | 63 ++
> kernel/Kconfig.locks | 7 +
> kernel/locking/Makefile | 1 +
> kernel/locking/qspinlock.c | 1010 +++++++++++++++++++++++++++++++++
> 16 files changed, 1975 insertions(+), 12 deletions(-)
> create mode 100644 arch/x86/include/asm/pvqspinlock.h
> create mode 100644 arch/x86/include/asm/qspinlock.h
> create mode 100644 include/asm-generic/qspinlock.h
> create mode 100644 include/asm-generic/qspinlock_types.h
> create mode 100644 kernel/locking/qspinlock.c
>
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 10/10] pvqspinlock, x86: Enable qspinlock PV support for XEN
2014-04-02 13:27 ` Waiman Long
2014-04-02 14:39 ` Konrad Rzeszutek Wilk
@ 2014-04-02 14:39 ` Konrad Rzeszutek Wilk
2014-04-02 20:38 ` Waiman Long
1 sibling, 1 reply; 109+ messages in thread
From: Konrad Rzeszutek Wilk @ 2014-04-02 14:39 UTC (permalink / raw)
To: Waiman Long
Cc: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, Peter Zijlstra,
linux-arch, x86, linux-kernel, virtualization, xen-devel, kvm,
Paolo Bonzini, Paul E. McKenney, Rik van Riel, Linus Torvalds,
Raghavendra K T, David Vrabel, Oleg Nesterov, Gleb Natapov,
Aswin Chandramouleeswaran, Scott J Norton, Chegu Vinod
> diff --git a/kernel/Kconfig.locks b/kernel/Kconfig.locks
> index a70fdeb..451e392 100644
> --- a/kernel/Kconfig.locks
> +++ b/kernel/Kconfig.locks
> @@ -229,4 +229,4 @@ config ARCH_USE_QUEUE_SPINLOCK
>
> config QUEUE_SPINLOCK
> def_bool y if ARCH_USE_QUEUE_SPINLOCK
> - depends on SMP && (!PARAVIRT_SPINLOCKS || !XEN)
> + depends on SMP
If I read this correctly that means you cannot select any more the old
ticketlocks? As in, if you select CONFIG_PARAVIRT on X86 it will automatically
select ARCH_USE_QUEUE_SPINLOCK which will then enable this by default?
Should the 'def_bool' be selectable?
> --
> 1.7.1
>
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 10/10] pvqspinlock, x86: Enable qspinlock PV support for XEN
2014-04-02 13:27 ` Waiman Long
@ 2014-04-02 14:39 ` Konrad Rzeszutek Wilk
2014-04-02 14:39 ` Konrad Rzeszutek Wilk
1 sibling, 0 replies; 109+ messages in thread
From: Konrad Rzeszutek Wilk @ 2014-04-02 14:39 UTC (permalink / raw)
To: Waiman Long
Cc: linux-arch, Raghavendra K T, Gleb Natapov, kvm, Peter Zijlstra,
Scott J Norton, x86, Paolo Bonzini, linux-kernel, virtualization,
Ingo Molnar, Chegu Vinod, David Vrabel, H. Peter Anvin,
xen-devel, Thomas Gleixner, Paul E. McKenney, Linus Torvalds,
Oleg Nesterov, Aswin Chandramouleeswaran
> diff --git a/kernel/Kconfig.locks b/kernel/Kconfig.locks
> index a70fdeb..451e392 100644
> --- a/kernel/Kconfig.locks
> +++ b/kernel/Kconfig.locks
> @@ -229,4 +229,4 @@ config ARCH_USE_QUEUE_SPINLOCK
>
> config QUEUE_SPINLOCK
> def_bool y if ARCH_USE_QUEUE_SPINLOCK
> - depends on SMP && (!PARAVIRT_SPINLOCKS || !XEN)
> + depends on SMP
If I read this correctly that means you cannot select any more the old
ticketlocks? As in, if you select CONFIG_PARAVIRT on X86 it will automatically
select ARCH_USE_QUEUE_SPINLOCK which will then enable this by default?
Should the 'def_bool' be selectable?
> --
> 1.7.1
>
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
2014-04-02 14:32 ` Konrad Rzeszutek Wilk
(?)
@ 2014-04-02 20:35 ` Waiman Long
2014-04-03 2:10 ` Waiman Long
2014-04-03 2:10 ` Waiman Long
-1 siblings, 2 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-02 20:35 UTC (permalink / raw)
To: Konrad Rzeszutek Wilk
Cc: Marcos Matsunaga, Thomas Gleixner, Ingo Molnar, H. Peter Anvin,
Peter Zijlstra, linux-arch, x86, linux-kernel, virtualization,
xen-devel, kvm, Paolo Bonzini, Paul E. McKenney, Rik van Riel,
Linus Torvalds, Raghavendra K T, David Vrabel, Oleg Nesterov,
Gleb Natapov, Aswin Chandramouleeswaran, Scott J Norton,
Chegu Vinod, boris.ostrovsky
On 04/02/2014 10:32 AM, Konrad Rzeszutek Wilk wrote:
> On Wed, Apr 02, 2014 at 09:27:29AM -0400, Waiman Long wrote:
>> N.B. Sorry for the duplicate. This patch series were resent as the
>> original one was rejected by the vger.kernel.org list server
>> due to long header. There is no change in content.
>>
>> v7->v8:
>> - Remove one unneeded atomic operation from the slowpath, thus
>> improving performance.
>> - Simplify some of the codes and add more comments.
>> - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
>> unfair lock.
>> - Reduce unfair lock slowpath lock stealing frequency depending
>> on its distance from the queue head.
>> - Add performance data for IvyBridge-EX CPU.
> FYI, your v7 patch with 32 VCPUs (on a 32 cpu socket machine) on an
> HVM guest under Xen after a while stops working. The workload
> is doing 'make -j32' on the Linux kernel.
>
> Completely unresponsive. Thoughts?
>
Thank for reporting that. I haven't done that much testing on Xen. My
focus was in KVM. I will perform more test on Xen to see if I can
reproduce the problem.
-Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
2014-04-02 14:32 ` Konrad Rzeszutek Wilk
(?)
(?)
@ 2014-04-02 20:35 ` Waiman Long
-1 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-02 20:35 UTC (permalink / raw)
To: Konrad Rzeszutek Wilk
Cc: x86, Gleb Natapov, Peter Zijlstra, virtualization,
Marcos Matsunaga, H. Peter Anvin, boris.ostrovsky, linux-arch,
kvm, Raghavendra K T, Ingo Molnar, xen-devel, Paul E. McKenney,
Scott J Norton, Paolo Bonzini, Oleg Nesterov, Thomas Gleixner,
Aswin Chandramouleeswaran, Chegu Vinod, linux-kernel,
David Vrabel, Linus Torvalds
On 04/02/2014 10:32 AM, Konrad Rzeszutek Wilk wrote:
> On Wed, Apr 02, 2014 at 09:27:29AM -0400, Waiman Long wrote:
>> N.B. Sorry for the duplicate. This patch series were resent as the
>> original one was rejected by the vger.kernel.org list server
>> due to long header. There is no change in content.
>>
>> v7->v8:
>> - Remove one unneeded atomic operation from the slowpath, thus
>> improving performance.
>> - Simplify some of the codes and add more comments.
>> - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
>> unfair lock.
>> - Reduce unfair lock slowpath lock stealing frequency depending
>> on its distance from the queue head.
>> - Add performance data for IvyBridge-EX CPU.
> FYI, your v7 patch with 32 VCPUs (on a 32 cpu socket machine) on an
> HVM guest under Xen after a while stops working. The workload
> is doing 'make -j32' on the Linux kernel.
>
> Completely unresponsive. Thoughts?
>
Thank for reporting that. I haven't done that much testing on Xen. My
focus was in KVM. I will perform more test on Xen to see if I can
reproduce the problem.
-Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 10/10] pvqspinlock, x86: Enable qspinlock PV support for XEN
2014-04-02 14:39 ` Konrad Rzeszutek Wilk
@ 2014-04-02 20:38 ` Waiman Long
0 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-02 20:38 UTC (permalink / raw)
To: Konrad Rzeszutek Wilk
Cc: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, Peter Zijlstra,
linux-arch, x86, linux-kernel, virtualization, xen-devel, kvm,
Paolo Bonzini, Paul E. McKenney, Rik van Riel, Linus Torvalds,
Raghavendra K T, David Vrabel, Oleg Nesterov, Gleb Natapov,
Aswin Chandramouleeswaran, Scott J Norton, Chegu Vinod
On 04/02/2014 10:39 AM, Konrad Rzeszutek Wilk wrote:
>> diff --git a/kernel/Kconfig.locks b/kernel/Kconfig.locks
>> index a70fdeb..451e392 100644
>> --- a/kernel/Kconfig.locks
>> +++ b/kernel/Kconfig.locks
>> @@ -229,4 +229,4 @@ config ARCH_USE_QUEUE_SPINLOCK
>>
>> config QUEUE_SPINLOCK
>> def_bool y if ARCH_USE_QUEUE_SPINLOCK
>> - depends on SMP&& (!PARAVIRT_SPINLOCKS || !XEN)
>> + depends on SMP
> If I read this correctly that means you cannot select any more the old
> ticketlocks? As in, if you select CONFIG_PARAVIRT on X86 it will automatically
> select ARCH_USE_QUEUE_SPINLOCK which will then enable this by default?
>
> Should the 'def_bool' be selectable?
My initial qspinlock patch allows it to be selectable, but there was
comment that doing so would increase the testing matrix and so made it
less desirable. That was why I made it the default for 64-bit code which
are more likely to be used in large machines which benefit the most from
this patch. 32-bit kernel will still use the ticket lock.
-Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 10/10] pvqspinlock, x86: Enable qspinlock PV support for XEN
@ 2014-04-02 20:38 ` Waiman Long
0 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-02 20:38 UTC (permalink / raw)
To: Konrad Rzeszutek Wilk
Cc: linux-arch, Raghavendra K T, Gleb Natapov, kvm, Peter Zijlstra,
Scott J Norton, x86, Paolo Bonzini, linux-kernel, virtualization,
Ingo Molnar, Chegu Vinod, David Vrabel, H. Peter Anvin,
xen-devel, Thomas Gleixner, Paul E. McKenney, Linus Torvalds,
Oleg Nesterov, Aswin Chandramouleeswaran
On 04/02/2014 10:39 AM, Konrad Rzeszutek Wilk wrote:
>> diff --git a/kernel/Kconfig.locks b/kernel/Kconfig.locks
>> index a70fdeb..451e392 100644
>> --- a/kernel/Kconfig.locks
>> +++ b/kernel/Kconfig.locks
>> @@ -229,4 +229,4 @@ config ARCH_USE_QUEUE_SPINLOCK
>>
>> config QUEUE_SPINLOCK
>> def_bool y if ARCH_USE_QUEUE_SPINLOCK
>> - depends on SMP&& (!PARAVIRT_SPINLOCKS || !XEN)
>> + depends on SMP
> If I read this correctly that means you cannot select any more the old
> ticketlocks? As in, if you select CONFIG_PARAVIRT on X86 it will automatically
> select ARCH_USE_QUEUE_SPINLOCK which will then enable this by default?
>
> Should the 'def_bool' be selectable?
My initial qspinlock patch allows it to be selectable, but there was
comment that doing so would increase the testing matrix and so made it
less desirable. That was why I made it the default for 64-bit code which
are more likely to be used in large machines which benefit the most from
this patch. 32-bit kernel will still use the ticket lock.
-Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
2014-04-02 20:35 ` Waiman Long
@ 2014-04-03 2:10 ` Waiman Long
2014-04-03 2:10 ` Waiman Long
1 sibling, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-03 2:10 UTC (permalink / raw)
To: Konrad Rzeszutek Wilk
Cc: Marcos Matsunaga, Thomas Gleixner, Ingo Molnar, H. Peter Anvin,
Peter Zijlstra, linux-arch, x86, linux-kernel, virtualization,
xen-devel, kvm, Paolo Bonzini, Paul E. McKenney, Rik van Riel,
Linus Torvalds, Raghavendra K T, David Vrabel, Oleg Nesterov,
Gleb Natapov, Aswin Chandramouleeswaran, Scott J Norton,
Chegu Vinod, boris.ostrovsky
On 04/02/2014 04:35 PM, Waiman Long wrote:
> On 04/02/2014 10:32 AM, Konrad Rzeszutek Wilk wrote:
>> On Wed, Apr 02, 2014 at 09:27:29AM -0400, Waiman Long wrote:
>>> N.B. Sorry for the duplicate. This patch series were resent as the
>>> original one was rejected by the vger.kernel.org list server
>>> due to long header. There is no change in content.
>>>
>>> v7->v8:
>>> - Remove one unneeded atomic operation from the slowpath, thus
>>> improving performance.
>>> - Simplify some of the codes and add more comments.
>>> - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
>>> unfair lock.
>>> - Reduce unfair lock slowpath lock stealing frequency depending
>>> on its distance from the queue head.
>>> - Add performance data for IvyBridge-EX CPU.
>> FYI, your v7 patch with 32 VCPUs (on a 32 cpu socket machine) on an
>> HVM guest under Xen after a while stops working. The workload
>> is doing 'make -j32' on the Linux kernel.
>>
>> Completely unresponsive. Thoughts?
>>
>
> Thank for reporting that. I haven't done that much testing on Xen. My
> focus was in KVM. I will perform more test on Xen to see if I can
> reproduce the problem.
>
BTW, does the halting and sending IPI mechanism work in HVM? I saw that
in RHEL7, PV spinlock was explicitly disabled when in HVM mode. However,
this piece of code isn't in upstream code. So I wonder if there is
problem with that.
-Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
@ 2014-04-03 2:10 ` Waiman Long
0 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-03 2:10 UTC (permalink / raw)
To: Konrad Rzeszutek Wilk
Cc: x86, Gleb Natapov, Peter Zijlstra, virtualization,
Marcos Matsunaga, H. Peter Anvin, boris.ostrovsky, linux-arch,
kvm, Raghavendra K T, Ingo Molnar, xen-devel, Paul E. McKenney,
Rik van Riel, Scott J Norton, Paolo Bonzini, Oleg Nesterov,
Thomas Gleixner, Aswin Chandramouleeswaran, Chegu Vinod,
linux-kernel, David Vrabel, Linus Torvalds
On 04/02/2014 04:35 PM, Waiman Long wrote:
> On 04/02/2014 10:32 AM, Konrad Rzeszutek Wilk wrote:
>> On Wed, Apr 02, 2014 at 09:27:29AM -0400, Waiman Long wrote:
>>> N.B. Sorry for the duplicate. This patch series were resent as the
>>> original one was rejected by the vger.kernel.org list server
>>> due to long header. There is no change in content.
>>>
>>> v7->v8:
>>> - Remove one unneeded atomic operation from the slowpath, thus
>>> improving performance.
>>> - Simplify some of the codes and add more comments.
>>> - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
>>> unfair lock.
>>> - Reduce unfair lock slowpath lock stealing frequency depending
>>> on its distance from the queue head.
>>> - Add performance data for IvyBridge-EX CPU.
>> FYI, your v7 patch with 32 VCPUs (on a 32 cpu socket machine) on an
>> HVM guest under Xen after a while stops working. The workload
>> is doing 'make -j32' on the Linux kernel.
>>
>> Completely unresponsive. Thoughts?
>>
>
> Thank for reporting that. I haven't done that much testing on Xen. My
> focus was in KVM. I will perform more test on Xen to see if I can
> reproduce the problem.
>
BTW, does the halting and sending IPI mechanism work in HVM? I saw that
in RHEL7, PV spinlock was explicitly disabled when in HVM mode. However,
this piece of code isn't in upstream code. So I wonder if there is
problem with that.
-Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
2014-04-02 20:35 ` Waiman Long
@ 2014-04-03 2:10 ` Waiman Long
2014-04-03 2:10 ` Waiman Long
1 sibling, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-03 2:10 UTC (permalink / raw)
To: Konrad Rzeszutek Wilk
Cc: x86, Gleb Natapov, Peter Zijlstra, virtualization,
Marcos Matsunaga, H. Peter Anvin, boris.ostrovsky, linux-arch,
kvm, Raghavendra K T, Ingo Molnar, xen-devel, Paul E. McKenney,
Scott J Norton, Paolo Bonzini, Oleg Nesterov, Thomas Gleixner,
Aswin Chandramouleeswaran, Chegu Vinod, linux-kernel,
David Vrabel, Linus Torvalds
On 04/02/2014 04:35 PM, Waiman Long wrote:
> On 04/02/2014 10:32 AM, Konrad Rzeszutek Wilk wrote:
>> On Wed, Apr 02, 2014 at 09:27:29AM -0400, Waiman Long wrote:
>>> N.B. Sorry for the duplicate. This patch series were resent as the
>>> original one was rejected by the vger.kernel.org list server
>>> due to long header. There is no change in content.
>>>
>>> v7->v8:
>>> - Remove one unneeded atomic operation from the slowpath, thus
>>> improving performance.
>>> - Simplify some of the codes and add more comments.
>>> - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
>>> unfair lock.
>>> - Reduce unfair lock slowpath lock stealing frequency depending
>>> on its distance from the queue head.
>>> - Add performance data for IvyBridge-EX CPU.
>> FYI, your v7 patch with 32 VCPUs (on a 32 cpu socket machine) on an
>> HVM guest under Xen after a while stops working. The workload
>> is doing 'make -j32' on the Linux kernel.
>>
>> Completely unresponsive. Thoughts?
>>
>
> Thank for reporting that. I haven't done that much testing on Xen. My
> focus was in KVM. I will perform more test on Xen to see if I can
> reproduce the problem.
>
BTW, does the halting and sending IPI mechanism work in HVM? I saw that
in RHEL7, PV spinlock was explicitly disabled when in HVM mode. However,
this piece of code isn't in upstream code. So I wonder if there is
problem with that.
-Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
2014-04-03 2:10 ` Waiman Long
@ 2014-04-03 17:23 ` Konrad Rzeszutek Wilk
-1 siblings, 0 replies; 109+ messages in thread
From: Konrad Rzeszutek Wilk @ 2014-04-03 17:23 UTC (permalink / raw)
To: Waiman Long
Cc: Marcos Matsunaga, Thomas Gleixner, Ingo Molnar, H. Peter Anvin,
Peter Zijlstra, linux-arch, x86, linux-kernel, virtualization,
xen-devel, kvm, Paolo Bonzini, Paul E. McKenney, Rik van Riel,
Linus Torvalds, Raghavendra K T, David Vrabel, Oleg Nesterov,
Gleb Natapov, Aswin Chandramouleeswaran, Scott J Norton,
Chegu Vinod, boris.ostrovsky
On Wed, Apr 02, 2014 at 10:10:17PM -0400, Waiman Long wrote:
> On 04/02/2014 04:35 PM, Waiman Long wrote:
> >On 04/02/2014 10:32 AM, Konrad Rzeszutek Wilk wrote:
> >>On Wed, Apr 02, 2014 at 09:27:29AM -0400, Waiman Long wrote:
> >>>N.B. Sorry for the duplicate. This patch series were resent as the
> >>> original one was rejected by the vger.kernel.org list server
> >>> due to long header. There is no change in content.
> >>>
> >>>v7->v8:
> >>> - Remove one unneeded atomic operation from the slowpath, thus
> >>> improving performance.
> >>> - Simplify some of the codes and add more comments.
> >>> - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
> >>> unfair lock.
> >>> - Reduce unfair lock slowpath lock stealing frequency depending
> >>> on its distance from the queue head.
> >>> - Add performance data for IvyBridge-EX CPU.
> >>FYI, your v7 patch with 32 VCPUs (on a 32 cpu socket machine) on an
> >>HVM guest under Xen after a while stops working. The workload
> >>is doing 'make -j32' on the Linux kernel.
> >>
> >>Completely unresponsive. Thoughts?
> >>
> >
> >Thank for reporting that. I haven't done that much testing on Xen.
> >My focus was in KVM. I will perform more test on Xen to see if I
> >can reproduce the problem.
> >
>
> BTW, does the halting and sending IPI mechanism work in HVM? I saw
Yes.
> that in RHEL7, PV spinlock was explicitly disabled when in HVM mode.
> However, this piece of code isn't in upstream code. So I wonder if
> there is problem with that.
The PV ticketlock fixed it for HVM. It was disabled before because
the PV guests were using bytelocks while the HVM were using ticketlocks
and you couldnt' swap in PV bytelocks for ticketlocks during startup.
>
> -Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
@ 2014-04-03 17:23 ` Konrad Rzeszutek Wilk
0 siblings, 0 replies; 109+ messages in thread
From: Konrad Rzeszutek Wilk @ 2014-04-03 17:23 UTC (permalink / raw)
To: Waiman Long
Cc: x86, Gleb Natapov, Peter Zijlstra, virtualization,
Marcos Matsunaga, H. Peter Anvin, boris.ostrovsky, linux-arch,
kvm, Raghavendra K T, Ingo Molnar, xen-devel, Paul E. McKenney,
Rik van Riel, Scott J Norton, Paolo Bonzini, Oleg Nesterov,
Thomas Gleixner, Aswin Chandramouleeswaran, Chegu Vinod,
linux-kernel, David Vrabel, Linus Torvalds
On Wed, Apr 02, 2014 at 10:10:17PM -0400, Waiman Long wrote:
> On 04/02/2014 04:35 PM, Waiman Long wrote:
> >On 04/02/2014 10:32 AM, Konrad Rzeszutek Wilk wrote:
> >>On Wed, Apr 02, 2014 at 09:27:29AM -0400, Waiman Long wrote:
> >>>N.B. Sorry for the duplicate. This patch series were resent as the
> >>> original one was rejected by the vger.kernel.org list server
> >>> due to long header. There is no change in content.
> >>>
> >>>v7->v8:
> >>> - Remove one unneeded atomic operation from the slowpath, thus
> >>> improving performance.
> >>> - Simplify some of the codes and add more comments.
> >>> - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
> >>> unfair lock.
> >>> - Reduce unfair lock slowpath lock stealing frequency depending
> >>> on its distance from the queue head.
> >>> - Add performance data for IvyBridge-EX CPU.
> >>FYI, your v7 patch with 32 VCPUs (on a 32 cpu socket machine) on an
> >>HVM guest under Xen after a while stops working. The workload
> >>is doing 'make -j32' on the Linux kernel.
> >>
> >>Completely unresponsive. Thoughts?
> >>
> >
> >Thank for reporting that. I haven't done that much testing on Xen.
> >My focus was in KVM. I will perform more test on Xen to see if I
> >can reproduce the problem.
> >
>
> BTW, does the halting and sending IPI mechanism work in HVM? I saw
Yes.
> that in RHEL7, PV spinlock was explicitly disabled when in HVM mode.
> However, this piece of code isn't in upstream code. So I wonder if
> there is problem with that.
The PV ticketlock fixed it for HVM. It was disabled before because
the PV guests were using bytelocks while the HVM were using ticketlocks
and you couldnt' swap in PV bytelocks for ticketlocks during startup.
>
> -Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
2014-04-03 2:10 ` Waiman Long
(?)
(?)
@ 2014-04-03 17:23 ` Konrad Rzeszutek Wilk
-1 siblings, 0 replies; 109+ messages in thread
From: Konrad Rzeszutek Wilk @ 2014-04-03 17:23 UTC (permalink / raw)
To: Waiman Long
Cc: x86, Gleb Natapov, Peter Zijlstra, virtualization,
Marcos Matsunaga, H. Peter Anvin, boris.ostrovsky, linux-arch,
kvm, Raghavendra K T, Ingo Molnar, xen-devel, Paul E. McKenney,
Scott J Norton, Paolo Bonzini, Oleg Nesterov, Thomas Gleixner,
Aswin Chandramouleeswaran, Chegu Vinod, linux-kernel,
David Vrabel, Linus Torvalds
On Wed, Apr 02, 2014 at 10:10:17PM -0400, Waiman Long wrote:
> On 04/02/2014 04:35 PM, Waiman Long wrote:
> >On 04/02/2014 10:32 AM, Konrad Rzeszutek Wilk wrote:
> >>On Wed, Apr 02, 2014 at 09:27:29AM -0400, Waiman Long wrote:
> >>>N.B. Sorry for the duplicate. This patch series were resent as the
> >>> original one was rejected by the vger.kernel.org list server
> >>> due to long header. There is no change in content.
> >>>
> >>>v7->v8:
> >>> - Remove one unneeded atomic operation from the slowpath, thus
> >>> improving performance.
> >>> - Simplify some of the codes and add more comments.
> >>> - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
> >>> unfair lock.
> >>> - Reduce unfair lock slowpath lock stealing frequency depending
> >>> on its distance from the queue head.
> >>> - Add performance data for IvyBridge-EX CPU.
> >>FYI, your v7 patch with 32 VCPUs (on a 32 cpu socket machine) on an
> >>HVM guest under Xen after a while stops working. The workload
> >>is doing 'make -j32' on the Linux kernel.
> >>
> >>Completely unresponsive. Thoughts?
> >>
> >
> >Thank for reporting that. I haven't done that much testing on Xen.
> >My focus was in KVM. I will perform more test on Xen to see if I
> >can reproduce the problem.
> >
>
> BTW, does the halting and sending IPI mechanism work in HVM? I saw
Yes.
> that in RHEL7, PV spinlock was explicitly disabled when in HVM mode.
> However, this piece of code isn't in upstream code. So I wonder if
> there is problem with that.
The PV ticketlock fixed it for HVM. It was disabled before because
the PV guests were using bytelocks while the HVM were using ticketlocks
and you couldnt' swap in PV bytelocks for ticketlocks during startup.
>
> -Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
2014-04-03 17:23 ` Konrad Rzeszutek Wilk
@ 2014-04-04 2:57 ` Waiman Long
-1 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-04 2:57 UTC (permalink / raw)
To: Konrad Rzeszutek Wilk
Cc: Marcos Matsunaga, Thomas Gleixner, Ingo Molnar, H. Peter Anvin,
Peter Zijlstra, linux-arch, x86, linux-kernel, virtualization,
xen-devel, kvm, Paolo Bonzini, Paul E. McKenney, Rik van Riel,
Linus Torvalds, Raghavendra K T, David Vrabel, Oleg Nesterov,
Gleb Natapov, Aswin Chandramouleeswaran, Scott J Norton,
Chegu Vinod, boris.ostrovsky
On 04/03/2014 01:23 PM, Konrad Rzeszutek Wilk wrote:
> On Wed, Apr 02, 2014 at 10:10:17PM -0400, Waiman Long wrote:
>> On 04/02/2014 04:35 PM, Waiman Long wrote:
>>> On 04/02/2014 10:32 AM, Konrad Rzeszutek Wilk wrote:
>>>> On Wed, Apr 02, 2014 at 09:27:29AM -0400, Waiman Long wrote:
>>>>> N.B. Sorry for the duplicate. This patch series were resent as the
>>>>> original one was rejected by the vger.kernel.org list server
>>>>> due to long header. There is no change in content.
>>>>>
>>>>> v7->v8:
>>>>> - Remove one unneeded atomic operation from the slowpath, thus
>>>>> improving performance.
>>>>> - Simplify some of the codes and add more comments.
>>>>> - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
>>>>> unfair lock.
>>>>> - Reduce unfair lock slowpath lock stealing frequency depending
>>>>> on its distance from the queue head.
>>>>> - Add performance data for IvyBridge-EX CPU.
>>>> FYI, your v7 patch with 32 VCPUs (on a 32 cpu socket machine) on an
>>>> HVM guest under Xen after a while stops working. The workload
>>>> is doing 'make -j32' on the Linux kernel.
>>>>
>>>> Completely unresponsive. Thoughts?
>>>>
>>> Thank for reporting that. I haven't done that much testing on Xen.
>>> My focus was in KVM. I will perform more test on Xen to see if I
>>> can reproduce the problem.
>>>
>> BTW, does the halting and sending IPI mechanism work in HVM? I saw
> Yes.
>> that in RHEL7, PV spinlock was explicitly disabled when in HVM mode.
>> However, this piece of code isn't in upstream code. So I wonder if
>> there is problem with that.
> The PV ticketlock fixed it for HVM. It was disabled before because
> the PV guests were using bytelocks while the HVM were using ticketlocks
> and you couldnt' swap in PV bytelocks for ticketlocks during startup.
The RHEL7 code has used PV ticketlock already. RHEL7 uses a single
kernel for all configurations. So PV ticketlock as well as Xen and KVM
support was compiled in. I think booting the kernel on bare metal will
cause the Xen code to work in HVM mode thus activating the PV spinlock
code which has a negative impact on performance. That may be why it was
disabled so that the bare metal performance will not be impacted.
BTW, could you send me more information about the configuration of the
machine, like the .config file that you used?
-Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
@ 2014-04-04 2:57 ` Waiman Long
0 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-04 2:57 UTC (permalink / raw)
To: Konrad Rzeszutek Wilk
Cc: x86, Gleb Natapov, Peter Zijlstra, virtualization,
Marcos Matsunaga, H. Peter Anvin, boris.ostrovsky, linux-arch,
kvm, Raghavendra K T, Ingo Molnar, xen-devel, Paul E. McKenney,
Rik van Riel, Scott J Norton, Paolo Bonzini, Oleg Nesterov,
Thomas Gleixner, Aswin Chandramouleeswaran, Chegu Vinod,
linux-kernel, David Vrabel, Linus Torvalds
On 04/03/2014 01:23 PM, Konrad Rzeszutek Wilk wrote:
> On Wed, Apr 02, 2014 at 10:10:17PM -0400, Waiman Long wrote:
>> On 04/02/2014 04:35 PM, Waiman Long wrote:
>>> On 04/02/2014 10:32 AM, Konrad Rzeszutek Wilk wrote:
>>>> On Wed, Apr 02, 2014 at 09:27:29AM -0400, Waiman Long wrote:
>>>>> N.B. Sorry for the duplicate. This patch series were resent as the
>>>>> original one was rejected by the vger.kernel.org list server
>>>>> due to long header. There is no change in content.
>>>>>
>>>>> v7->v8:
>>>>> - Remove one unneeded atomic operation from the slowpath, thus
>>>>> improving performance.
>>>>> - Simplify some of the codes and add more comments.
>>>>> - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
>>>>> unfair lock.
>>>>> - Reduce unfair lock slowpath lock stealing frequency depending
>>>>> on its distance from the queue head.
>>>>> - Add performance data for IvyBridge-EX CPU.
>>>> FYI, your v7 patch with 32 VCPUs (on a 32 cpu socket machine) on an
>>>> HVM guest under Xen after a while stops working. The workload
>>>> is doing 'make -j32' on the Linux kernel.
>>>>
>>>> Completely unresponsive. Thoughts?
>>>>
>>> Thank for reporting that. I haven't done that much testing on Xen.
>>> My focus was in KVM. I will perform more test on Xen to see if I
>>> can reproduce the problem.
>>>
>> BTW, does the halting and sending IPI mechanism work in HVM? I saw
> Yes.
>> that in RHEL7, PV spinlock was explicitly disabled when in HVM mode.
>> However, this piece of code isn't in upstream code. So I wonder if
>> there is problem with that.
> The PV ticketlock fixed it for HVM. It was disabled before because
> the PV guests were using bytelocks while the HVM were using ticketlocks
> and you couldnt' swap in PV bytelocks for ticketlocks during startup.
The RHEL7 code has used PV ticketlock already. RHEL7 uses a single
kernel for all configurations. So PV ticketlock as well as Xen and KVM
support was compiled in. I think booting the kernel on bare metal will
cause the Xen code to work in HVM mode thus activating the PV spinlock
code which has a negative impact on performance. That may be why it was
disabled so that the bare metal performance will not be impacted.
BTW, could you send me more information about the configuration of the
machine, like the .config file that you used?
-Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
2014-04-03 17:23 ` Konrad Rzeszutek Wilk
(?)
@ 2014-04-04 2:57 ` Waiman Long
-1 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-04 2:57 UTC (permalink / raw)
To: Konrad Rzeszutek Wilk
Cc: x86, Gleb Natapov, Peter Zijlstra, virtualization,
Marcos Matsunaga, H. Peter Anvin, boris.ostrovsky, linux-arch,
kvm, Raghavendra K T, Ingo Molnar, xen-devel, Paul E. McKenney,
Scott J Norton, Paolo Bonzini, Oleg Nesterov, Thomas Gleixner,
Aswin Chandramouleeswaran, Chegu Vinod, linux-kernel,
David Vrabel, Linus Torvalds
On 04/03/2014 01:23 PM, Konrad Rzeszutek Wilk wrote:
> On Wed, Apr 02, 2014 at 10:10:17PM -0400, Waiman Long wrote:
>> On 04/02/2014 04:35 PM, Waiman Long wrote:
>>> On 04/02/2014 10:32 AM, Konrad Rzeszutek Wilk wrote:
>>>> On Wed, Apr 02, 2014 at 09:27:29AM -0400, Waiman Long wrote:
>>>>> N.B. Sorry for the duplicate. This patch series were resent as the
>>>>> original one was rejected by the vger.kernel.org list server
>>>>> due to long header. There is no change in content.
>>>>>
>>>>> v7->v8:
>>>>> - Remove one unneeded atomic operation from the slowpath, thus
>>>>> improving performance.
>>>>> - Simplify some of the codes and add more comments.
>>>>> - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
>>>>> unfair lock.
>>>>> - Reduce unfair lock slowpath lock stealing frequency depending
>>>>> on its distance from the queue head.
>>>>> - Add performance data for IvyBridge-EX CPU.
>>>> FYI, your v7 patch with 32 VCPUs (on a 32 cpu socket machine) on an
>>>> HVM guest under Xen after a while stops working. The workload
>>>> is doing 'make -j32' on the Linux kernel.
>>>>
>>>> Completely unresponsive. Thoughts?
>>>>
>>> Thank for reporting that. I haven't done that much testing on Xen.
>>> My focus was in KVM. I will perform more test on Xen to see if I
>>> can reproduce the problem.
>>>
>> BTW, does the halting and sending IPI mechanism work in HVM? I saw
> Yes.
>> that in RHEL7, PV spinlock was explicitly disabled when in HVM mode.
>> However, this piece of code isn't in upstream code. So I wonder if
>> there is problem with that.
> The PV ticketlock fixed it for HVM. It was disabled before because
> the PV guests were using bytelocks while the HVM were using ticketlocks
> and you couldnt' swap in PV bytelocks for ticketlocks during startup.
The RHEL7 code has used PV ticketlock already. RHEL7 uses a single
kernel for all configurations. So PV ticketlock as well as Xen and KVM
support was compiled in. I think booting the kernel on bare metal will
cause the Xen code to work in HVM mode thus activating the PV spinlock
code which has a negative impact on performance. That may be why it was
disabled so that the bare metal performance will not be impacted.
BTW, could you send me more information about the configuration of the
machine, like the .config file that you used?
-Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation
2014-04-02 13:27 ` Waiman Long
@ 2014-04-04 13:00 ` Peter Zijlstra
2014-04-04 13:00 ` Peter Zijlstra
1 sibling, 0 replies; 109+ messages in thread
From: Peter Zijlstra @ 2014-04-04 13:00 UTC (permalink / raw)
To: Waiman Long
Cc: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, linux-arch, x86,
linux-kernel, virtualization, xen-devel, kvm, Paolo Bonzini,
Konrad Rzeszutek Wilk, Paul E. McKenney, Rik van Riel,
Linus Torvalds, Raghavendra K T, David Vrabel, Oleg Nesterov,
Gleb Natapov, Aswin Chandramouleeswaran, Scott J Norton,
Chegu Vinod
So I'm just not ever going to pick up this patch; I spend a week trying
to reverse engineer this; I posted a 7 patch series creating the
equivalent, but in a gradual and readable fashion:
http://lkml.kernel.org/r/20140310154236.038181843@infradead.org
You keep on ignoring that; I'll keep on ignoring your patches.
I might at some point rewrite some of your pv stuff on top to get this
moving again, but I'm not really motivated to work with you atm.
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation
@ 2014-04-04 13:00 ` Peter Zijlstra
0 siblings, 0 replies; 109+ messages in thread
From: Peter Zijlstra @ 2014-04-04 13:00 UTC (permalink / raw)
To: Waiman Long
Cc: linux-arch, Rik van Riel, Raghavendra K T, Gleb Natapov, kvm,
Konrad Rzeszutek Wilk, Aswin Chandramouleeswaran, Scott J Norton,
x86, Paolo Bonzini, linux-kernel, virtualization, Ingo Molnar,
Chegu Vinod, David Vrabel, H. Peter Anvin, xen-devel,
Thomas Gleixner, Paul E. McKenney, Linus Torvalds, Oleg Nesterov
So I'm just not ever going to pick up this patch; I spend a week trying
to reverse engineer this; I posted a 7 patch series creating the
equivalent, but in a gradual and readable fashion:
http://lkml.kernel.org/r/20140310154236.038181843@infradead.org
You keep on ignoring that; I'll keep on ignoring your patches.
I might at some point rewrite some of your pv stuff on top to get this
moving again, but I'm not really motivated to work with you atm.
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation
2014-04-02 13:27 ` Waiman Long
@ 2014-04-04 13:00 ` Peter Zijlstra
2014-04-04 13:00 ` Peter Zijlstra
1 sibling, 0 replies; 109+ messages in thread
From: Peter Zijlstra @ 2014-04-04 13:00 UTC (permalink / raw)
To: Waiman Long
Cc: linux-arch, Raghavendra K T, Gleb Natapov, kvm,
Aswin Chandramouleeswaran, Scott J Norton, x86, Paolo Bonzini,
linux-kernel, virtualization, Ingo Molnar, Chegu Vinod,
David Vrabel, H. Peter Anvin, xen-devel, Thomas Gleixner,
Paul E. McKenney, Linus Torvalds, Oleg Nesterov
So I'm just not ever going to pick up this patch; I spend a week trying
to reverse engineer this; I posted a 7 patch series creating the
equivalent, but in a gradual and readable fashion:
http://lkml.kernel.org/r/20140310154236.038181843@infradead.org
You keep on ignoring that; I'll keep on ignoring your patches.
I might at some point rewrite some of your pv stuff on top to get this
moving again, but I'm not really motivated to work with you atm.
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation
2014-04-04 13:00 ` Peter Zijlstra
@ 2014-04-04 14:59 ` Waiman Long
-1 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-04 14:59 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, linux-arch, x86,
linux-kernel, virtualization, xen-devel, kvm, Paolo Bonzini,
Konrad Rzeszutek Wilk, Paul E. McKenney, Rik van Riel,
Linus Torvalds, Raghavendra K T, David Vrabel, Oleg Nesterov,
Gleb Natapov, Aswin Chandramouleeswaran, Scott J Norton,
Chegu Vinod
On 04/04/2014 09:00 AM, Peter Zijlstra wrote:
> So I'm just not ever going to pick up this patch; I spend a week trying
> to reverse engineer this; I posted a 7 patch series creating the
> equivalent, but in a gradual and readable fashion:
>
> http://lkml.kernel.org/r/20140310154236.038181843@infradead.org
>
> You keep on ignoring that; I'll keep on ignoring your patches.
>
> I might at some point rewrite some of your pv stuff on top to get this
> moving again, but I'm not really motivated to work with you atm.
Peter, I am sorry that I have focused recently on making the qspinlock
patch works with virtualization and it is easier for me to based off on
my patch initially. Now the PV part is almost done, I will apply them on
top of your patch. Hopefully, I will get a new patch out sometime next week.
I am really sorry if you have bad feeling about it. I do not mean to
discredit you on your effort to make the qspinlock patch better. I
really appreciate your input and would like to work with you on this
patch as well as other future patches.
-Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation
@ 2014-04-04 14:59 ` Waiman Long
0 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-04 14:59 UTC (permalink / raw)
To: Peter Zijlstra
Cc: linux-arch, Rik van Riel, Raghavendra K T, Gleb Natapov, kvm,
Konrad Rzeszutek Wilk, Aswin Chandramouleeswaran, Scott J Norton,
x86, Paolo Bonzini, linux-kernel, virtualization, Ingo Molnar,
Chegu Vinod, David Vrabel, H. Peter Anvin, xen-devel,
Thomas Gleixner, Paul E. McKenney, Linus Torvalds, Oleg Nesterov
On 04/04/2014 09:00 AM, Peter Zijlstra wrote:
> So I'm just not ever going to pick up this patch; I spend a week trying
> to reverse engineer this; I posted a 7 patch series creating the
> equivalent, but in a gradual and readable fashion:
>
> http://lkml.kernel.org/r/20140310154236.038181843@infradead.org
>
> You keep on ignoring that; I'll keep on ignoring your patches.
>
> I might at some point rewrite some of your pv stuff on top to get this
> moving again, but I'm not really motivated to work with you atm.
Peter, I am sorry that I have focused recently on making the qspinlock
patch works with virtualization and it is easier for me to based off on
my patch initially. Now the PV part is almost done, I will apply them on
top of your patch. Hopefully, I will get a new patch out sometime next week.
I am really sorry if you have bad feeling about it. I do not mean to
discredit you on your effort to make the qspinlock patch better. I
really appreciate your input and would like to work with you on this
patch as well as other future patches.
-Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation
2014-04-04 13:00 ` Peter Zijlstra
(?)
@ 2014-04-04 14:59 ` Waiman Long
-1 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-04 14:59 UTC (permalink / raw)
To: Peter Zijlstra
Cc: linux-arch, Raghavendra K T, Gleb Natapov, kvm,
Aswin Chandramouleeswaran, Scott J Norton, x86, Paolo Bonzini,
linux-kernel, virtualization, Ingo Molnar, Chegu Vinod,
David Vrabel, H. Peter Anvin, xen-devel, Thomas Gleixner,
Paul E. McKenney, Linus Torvalds, Oleg Nesterov
On 04/04/2014 09:00 AM, Peter Zijlstra wrote:
> So I'm just not ever going to pick up this patch; I spend a week trying
> to reverse engineer this; I posted a 7 patch series creating the
> equivalent, but in a gradual and readable fashion:
>
> http://lkml.kernel.org/r/20140310154236.038181843@infradead.org
>
> You keep on ignoring that; I'll keep on ignoring your patches.
>
> I might at some point rewrite some of your pv stuff on top to get this
> moving again, but I'm not really motivated to work with you atm.
Peter, I am sorry that I have focused recently on making the qspinlock
patch works with virtualization and it is easier for me to based off on
my patch initially. Now the PV part is almost done, I will apply them on
top of your patch. Hopefully, I will get a new patch out sometime next week.
I am really sorry if you have bad feeling about it. I do not mean to
discredit you on your effort to make the qspinlock patch better. I
really appreciate your input and would like to work with you on this
patch as well as other future patches.
-Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
2014-04-02 14:32 ` Konrad Rzeszutek Wilk
@ 2014-04-04 15:25 ` Konrad Rzeszutek Wilk
-1 siblings, 0 replies; 109+ messages in thread
From: Konrad Rzeszutek Wilk @ 2014-04-04 15:25 UTC (permalink / raw)
To: Waiman Long, Marcos Matsunaga
Cc: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, Peter Zijlstra,
linux-arch, x86, linux-kernel, virtualization, xen-devel, kvm,
Paolo Bonzini, Paul E. McKenney, Rik van Riel, Linus Torvalds,
Raghavendra K T, David Vrabel, Oleg Nesterov, Gleb Natapov,
Aswin Chandramouleeswaran, Scott J Norton, Chegu Vinod,
boris.ostrovsky
On Wed, Apr 02, 2014 at 10:32:01AM -0400, Konrad Rzeszutek Wilk wrote:
> On Wed, Apr 02, 2014 at 09:27:29AM -0400, Waiman Long wrote:
> > N.B. Sorry for the duplicate. This patch series were resent as the
> > original one was rejected by the vger.kernel.org list server
> > due to long header. There is no change in content.
> >
> > v7->v8:
> > - Remove one unneeded atomic operation from the slowpath, thus
> > improving performance.
> > - Simplify some of the codes and add more comments.
> > - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
> > unfair lock.
> > - Reduce unfair lock slowpath lock stealing frequency depending
> > on its distance from the queue head.
> > - Add performance data for IvyBridge-EX CPU.
>
> FYI, your v7 patch with 32 VCPUs (on a 32 cpu socket machine) on an
> HVM guest under Xen after a while stops working. The workload
> is doing 'make -j32' on the Linux kernel.
>
> Completely unresponsive. Thoughts?
Each VCPU seems to be stuck with this stack trace:
rip: ffffffff810013a8 xen_hypercall_sched_op+0x8
flags: 00000002 nz
rsp: ffff88029f13fb98
rax: 0000000000000000 rcx: 00000000fffffffa rdx: 0000000000000000
rbx: 0000000000000000 rsi: ffff88029f13fba8 rdi: 0000000000000003
rbp: ffff88029f13fbd0 r8: ffff8807ee65a1c0 r9: ffff88080d800b10
r10: 00000000000048cb r11: 0000000000000000 r12: 0000000000000013
r13: 0000000000000004 r14: 0000000000000001 r15: ffffea00076a8cd0
cs: 0010 ss: 0000 ds: 0000 es: 0000
fs: 0000 @ 00002b24c3e7e380
gs: 0000 @ ffff88080e200000/0000000000000000
Code (instr addr ffffffff810013a8)
cc cc cc cc cc cc cc cc cc cc cc cc cc b8 1d 00 00 00 0f 01 c1 <c3> cc cc cc cc cc cc cc cc cc cc
Stack:
ffffffff81352d9e 000000299f13fbb0 ffff88029f13fba4 ffff880200000001
0000000000000000 ffff88029f13fbd0 0000000000000045 ffff88029f13fbe0
ffffffff81354240 ffff88029f13fc00 ffffffff81012cb6 ffff88080f4da200
ffff88080e214b00 ffff88029f13fc48 ffffffff815e4631 0000000000000000
Call Trace:
[<ffffffff810013a8>] xen_hypercall_sched_op+0x8 <--
[<ffffffff81352d9e>] xen_poll_irq_timeout+0x3e
[<ffffffff81354240>] xen_poll_irq+0x10
[<ffffffff81012cb6>] xen_hibernate+0x46
[<ffffffff815e4631>] queue_spin_lock_slowerpath+0x84
[<ffffffff810ab96e>] queue_spin_lock_slowpath+0xee
[<ffffffff815eff8f>] _raw_spin_lock_irqsave+0x3f
[<ffffffff81144e4d>] pagevec_lru_move_fn+0x8d
[<ffffffff81144780>] __pagevec_lru_add_fn
[<ffffffff81144ed7>] __pagevec_lru_add+0x17
[<ffffffff81145540>] __lru_cache_add+0x60
[<ffffffff8114590e>] lru_cache_add+0xe
[<ffffffff8116d4ba>] page_add_new_anon_rmap+0xda
[<ffffffff81162ab1>] handle_mm_fault+0xaa1
[<ffffffff81169d42>] mmap_region+0x2c2
[<ffffffff815f3c4d>] __do_page_fault+0x18d
[<ffffffff811544e1>] vm_mmap_pgoff+0xb1
[<ffffffff815f3fdb>] do_page_fault+0x2b
[<ffffffff815f06c8>] page_fault+0x28
rip: ffffffff810013a8 xen_hypercall_sched_op+0x8
>
> (CC ing Marcos who had run the test)
> >
> > v6->v7:
> > - Remove an atomic operation from the 2-task contending code
> > - Shorten the names of some macros
> > - Make the queue waiter to attempt to steal lock when unfair lock is
> > enabled.
> > - Remove lock holder kick from the PV code and fix a race condition
> > - Run the unfair lock & PV code on overcommitted KVM guests to collect
> > performance data.
> >
> > v5->v6:
> > - Change the optimized 2-task contending code to make it fairer at the
> > expense of a bit of performance.
> > - Add a patch to support unfair queue spinlock for Xen.
> > - Modify the PV qspinlock code to follow what was done in the PV
> > ticketlock.
> > - Add performance data for the unfair lock as well as the PV
> > support code.
> >
> > v4->v5:
> > - Move the optimized 2-task contending code to the generic file to
> > enable more architectures to use it without code duplication.
> > - Address some of the style-related comments by PeterZ.
> > - Allow the use of unfair queue spinlock in a real para-virtualized
> > execution environment.
> > - Add para-virtualization support to the qspinlock code by ensuring
> > that the lock holder and queue head stay alive as much as possible.
> >
> > v3->v4:
> > - Remove debugging code and fix a configuration error
> > - Simplify the qspinlock structure and streamline the code to make it
> > perform a bit better
> > - Add an x86 version of asm/qspinlock.h for holding x86 specific
> > optimization.
> > - Add an optimized x86 code path for 2 contending tasks to improve
> > low contention performance.
> >
> > v2->v3:
> > - Simplify the code by using numerous mode only without an unfair option.
> > - Use the latest smp_load_acquire()/smp_store_release() barriers.
> > - Move the queue spinlock code to kernel/locking.
> > - Make the use of queue spinlock the default for x86-64 without user
> > configuration.
> > - Additional performance tuning.
> >
> > v1->v2:
> > - Add some more comments to document what the code does.
> > - Add a numerous CPU mode to support >= 16K CPUs
> > - Add a configuration option to allow lock stealing which can further
> > improve performance in many cases.
> > - Enable wakeup of queue head CPU at unlock time for non-numerous
> > CPU mode.
> >
> > This patch set has 3 different sections:
> > 1) Patches 1-4: Introduces a queue-based spinlock implementation that
> > can replace the default ticket spinlock without increasing the
> > size of the spinlock data structure. As a result, critical kernel
> > data structures that embed spinlock won't increase in size and
> > break data alignments.
> > 2) Patches 5-6: Enables the use of unfair queue spinlock in a
> > para-virtualized execution environment. This can resolve some
> > of the locking related performance issues due to the fact that
> > the next CPU to get the lock may have been scheduled out for a
> > period of time.
> > 3) Patches 7-10: Enable qspinlock para-virtualization support
> > by halting the waiting CPUs after spinning for a certain amount of
> > time. The unlock code will detect the a sleeping waiter and wake it
> > up. This is essentially the same logic as the PV ticketlock code.
> >
> > The queue spinlock has slightly better performance than the ticket
> > spinlock in uncontended case. Its performance can be much better
> > with moderate to heavy contention. This patch has the potential of
> > improving the performance of all the workloads that have moderate to
> > heavy spinlock contention.
> >
> > The queue spinlock is especially suitable for NUMA machines with at
> > least 2 sockets, though noticeable performance benefit probably won't
> > show up in machines with less than 4 sockets.
> >
> > The purpose of this patch set is not to solve any particular spinlock
> > contention problems. Those need to be solved by refactoring the code
> > to make more efficient use of the lock or finer granularity ones. The
> > main purpose is to make the lock contention problems more tolerable
> > until someone can spend the time and effort to fix them.
> >
> > To illustrate the performance benefit of the queue spinlock, the
> > ebizzy benchmark was run with the -m option in two different computers:
> >
> > Test machine ticket-lock queue-lock
> > ------------ ----------- ----------
> > 4-socket 40-core 2316 rec/s 2899 rec/s
> > Westmere-EX (HT off)
> > 2-socket 12-core 2130 rec/s 2176 rec/s
> > Westmere-EP (HT on)
> >
> > Waiman Long (10):
> > qspinlock: A generic 4-byte queue spinlock implementation
> > qspinlock, x86: Enable x86-64 to use queue spinlock
> > qspinlock: More optimized code for smaller NR_CPUS
> > qspinlock: Optimized code path for 2 contending tasks
> > pvqspinlock, x86: Allow unfair spinlock in a PV guest
> > pvqspinlock: Enable lock stealing in queue lock waiters
> > pvqspinlock, x86: Rename paravirt_ticketlocks_enabled
> > pvqspinlock, x86: Add qspinlock para-virtualization support
> > pvqspinlock, x86: Enable qspinlock PV support for KVM
> > pvqspinlock, x86: Enable qspinlock PV support for XEN
> >
> > arch/x86/Kconfig | 12 +
> > arch/x86/include/asm/paravirt.h | 17 +-
> > arch/x86/include/asm/paravirt_types.h | 16 +
> > arch/x86/include/asm/pvqspinlock.h | 260 +++++++++
> > arch/x86/include/asm/qspinlock.h | 191 +++++++
> > arch/x86/include/asm/spinlock.h | 9 +-
> > arch/x86/include/asm/spinlock_types.h | 4 +
> > arch/x86/kernel/Makefile | 1 +
> > arch/x86/kernel/kvm.c | 113 ++++-
> > arch/x86/kernel/paravirt-spinlocks.c | 36 ++-
> > arch/x86/xen/spinlock.c | 121 ++++-
> > include/asm-generic/qspinlock.h | 126 ++++
> > include/asm-generic/qspinlock_types.h | 63 ++
> > kernel/Kconfig.locks | 7 +
> > kernel/locking/Makefile | 1 +
> > kernel/locking/qspinlock.c | 1010 +++++++++++++++++++++++++++++++++
> > 16 files changed, 1975 insertions(+), 12 deletions(-)
> > create mode 100644 arch/x86/include/asm/pvqspinlock.h
> > create mode 100644 arch/x86/include/asm/qspinlock.h
> > create mode 100644 include/asm-generic/qspinlock.h
> > create mode 100644 include/asm-generic/qspinlock_types.h
> > create mode 100644 kernel/locking/qspinlock.c
> >
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
@ 2014-04-04 15:25 ` Konrad Rzeszutek Wilk
0 siblings, 0 replies; 109+ messages in thread
From: Konrad Rzeszutek Wilk @ 2014-04-04 15:25 UTC (permalink / raw)
To: Waiman Long, Marcos Matsunaga
Cc: x86, Gleb Natapov, Peter Zijlstra, virtualization,
H. Peter Anvin, Thomas Gleixner, linux-arch, kvm,
Raghavendra K T, Ingo Molnar, xen-devel, Paul E. McKenney,
Rik van Riel, Scott J Norton, Paolo Bonzini, Oleg Nesterov,
boris.ostrovsky, Aswin Chandramouleeswaran, Chegu Vinod,
linux-kernel, David Vrabel, Linus Torvalds
On Wed, Apr 02, 2014 at 10:32:01AM -0400, Konrad Rzeszutek Wilk wrote:
> On Wed, Apr 02, 2014 at 09:27:29AM -0400, Waiman Long wrote:
> > N.B. Sorry for the duplicate. This patch series were resent as the
> > original one was rejected by the vger.kernel.org list server
> > due to long header. There is no change in content.
> >
> > v7->v8:
> > - Remove one unneeded atomic operation from the slowpath, thus
> > improving performance.
> > - Simplify some of the codes and add more comments.
> > - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
> > unfair lock.
> > - Reduce unfair lock slowpath lock stealing frequency depending
> > on its distance from the queue head.
> > - Add performance data for IvyBridge-EX CPU.
>
> FYI, your v7 patch with 32 VCPUs (on a 32 cpu socket machine) on an
> HVM guest under Xen after a while stops working. The workload
> is doing 'make -j32' on the Linux kernel.
>
> Completely unresponsive. Thoughts?
Each VCPU seems to be stuck with this stack trace:
rip: ffffffff810013a8 xen_hypercall_sched_op+0x8
flags: 00000002 nz
rsp: ffff88029f13fb98
rax: 0000000000000000 rcx: 00000000fffffffa rdx: 0000000000000000
rbx: 0000000000000000 rsi: ffff88029f13fba8 rdi: 0000000000000003
rbp: ffff88029f13fbd0 r8: ffff8807ee65a1c0 r9: ffff88080d800b10
r10: 00000000000048cb r11: 0000000000000000 r12: 0000000000000013
r13: 0000000000000004 r14: 0000000000000001 r15: ffffea00076a8cd0
cs: 0010 ss: 0000 ds: 0000 es: 0000
fs: 0000 @ 00002b24c3e7e380
gs: 0000 @ ffff88080e200000/0000000000000000
Code (instr addr ffffffff810013a8)
cc cc cc cc cc cc cc cc cc cc cc cc cc b8 1d 00 00 00 0f 01 c1 <c3> cc cc cc cc cc cc cc cc cc cc
Stack:
ffffffff81352d9e 000000299f13fbb0 ffff88029f13fba4 ffff880200000001
0000000000000000 ffff88029f13fbd0 0000000000000045 ffff88029f13fbe0
ffffffff81354240 ffff88029f13fc00 ffffffff81012cb6 ffff88080f4da200
ffff88080e214b00 ffff88029f13fc48 ffffffff815e4631 0000000000000000
Call Trace:
[<ffffffff810013a8>] xen_hypercall_sched_op+0x8 <--
[<ffffffff81352d9e>] xen_poll_irq_timeout+0x3e
[<ffffffff81354240>] xen_poll_irq+0x10
[<ffffffff81012cb6>] xen_hibernate+0x46
[<ffffffff815e4631>] queue_spin_lock_slowerpath+0x84
[<ffffffff810ab96e>] queue_spin_lock_slowpath+0xee
[<ffffffff815eff8f>] _raw_spin_lock_irqsave+0x3f
[<ffffffff81144e4d>] pagevec_lru_move_fn+0x8d
[<ffffffff81144780>] __pagevec_lru_add_fn
[<ffffffff81144ed7>] __pagevec_lru_add+0x17
[<ffffffff81145540>] __lru_cache_add+0x60
[<ffffffff8114590e>] lru_cache_add+0xe
[<ffffffff8116d4ba>] page_add_new_anon_rmap+0xda
[<ffffffff81162ab1>] handle_mm_fault+0xaa1
[<ffffffff81169d42>] mmap_region+0x2c2
[<ffffffff815f3c4d>] __do_page_fault+0x18d
[<ffffffff811544e1>] vm_mmap_pgoff+0xb1
[<ffffffff815f3fdb>] do_page_fault+0x2b
[<ffffffff815f06c8>] page_fault+0x28
rip: ffffffff810013a8 xen_hypercall_sched_op+0x8
>
> (CC ing Marcos who had run the test)
> >
> > v6->v7:
> > - Remove an atomic operation from the 2-task contending code
> > - Shorten the names of some macros
> > - Make the queue waiter to attempt to steal lock when unfair lock is
> > enabled.
> > - Remove lock holder kick from the PV code and fix a race condition
> > - Run the unfair lock & PV code on overcommitted KVM guests to collect
> > performance data.
> >
> > v5->v6:
> > - Change the optimized 2-task contending code to make it fairer at the
> > expense of a bit of performance.
> > - Add a patch to support unfair queue spinlock for Xen.
> > - Modify the PV qspinlock code to follow what was done in the PV
> > ticketlock.
> > - Add performance data for the unfair lock as well as the PV
> > support code.
> >
> > v4->v5:
> > - Move the optimized 2-task contending code to the generic file to
> > enable more architectures to use it without code duplication.
> > - Address some of the style-related comments by PeterZ.
> > - Allow the use of unfair queue spinlock in a real para-virtualized
> > execution environment.
> > - Add para-virtualization support to the qspinlock code by ensuring
> > that the lock holder and queue head stay alive as much as possible.
> >
> > v3->v4:
> > - Remove debugging code and fix a configuration error
> > - Simplify the qspinlock structure and streamline the code to make it
> > perform a bit better
> > - Add an x86 version of asm/qspinlock.h for holding x86 specific
> > optimization.
> > - Add an optimized x86 code path for 2 contending tasks to improve
> > low contention performance.
> >
> > v2->v3:
> > - Simplify the code by using numerous mode only without an unfair option.
> > - Use the latest smp_load_acquire()/smp_store_release() barriers.
> > - Move the queue spinlock code to kernel/locking.
> > - Make the use of queue spinlock the default for x86-64 without user
> > configuration.
> > - Additional performance tuning.
> >
> > v1->v2:
> > - Add some more comments to document what the code does.
> > - Add a numerous CPU mode to support >= 16K CPUs
> > - Add a configuration option to allow lock stealing which can further
> > improve performance in many cases.
> > - Enable wakeup of queue head CPU at unlock time for non-numerous
> > CPU mode.
> >
> > This patch set has 3 different sections:
> > 1) Patches 1-4: Introduces a queue-based spinlock implementation that
> > can replace the default ticket spinlock without increasing the
> > size of the spinlock data structure. As a result, critical kernel
> > data structures that embed spinlock won't increase in size and
> > break data alignments.
> > 2) Patches 5-6: Enables the use of unfair queue spinlock in a
> > para-virtualized execution environment. This can resolve some
> > of the locking related performance issues due to the fact that
> > the next CPU to get the lock may have been scheduled out for a
> > period of time.
> > 3) Patches 7-10: Enable qspinlock para-virtualization support
> > by halting the waiting CPUs after spinning for a certain amount of
> > time. The unlock code will detect the a sleeping waiter and wake it
> > up. This is essentially the same logic as the PV ticketlock code.
> >
> > The queue spinlock has slightly better performance than the ticket
> > spinlock in uncontended case. Its performance can be much better
> > with moderate to heavy contention. This patch has the potential of
> > improving the performance of all the workloads that have moderate to
> > heavy spinlock contention.
> >
> > The queue spinlock is especially suitable for NUMA machines with at
> > least 2 sockets, though noticeable performance benefit probably won't
> > show up in machines with less than 4 sockets.
> >
> > The purpose of this patch set is not to solve any particular spinlock
> > contention problems. Those need to be solved by refactoring the code
> > to make more efficient use of the lock or finer granularity ones. The
> > main purpose is to make the lock contention problems more tolerable
> > until someone can spend the time and effort to fix them.
> >
> > To illustrate the performance benefit of the queue spinlock, the
> > ebizzy benchmark was run with the -m option in two different computers:
> >
> > Test machine ticket-lock queue-lock
> > ------------ ----------- ----------
> > 4-socket 40-core 2316 rec/s 2899 rec/s
> > Westmere-EX (HT off)
> > 2-socket 12-core 2130 rec/s 2176 rec/s
> > Westmere-EP (HT on)
> >
> > Waiman Long (10):
> > qspinlock: A generic 4-byte queue spinlock implementation
> > qspinlock, x86: Enable x86-64 to use queue spinlock
> > qspinlock: More optimized code for smaller NR_CPUS
> > qspinlock: Optimized code path for 2 contending tasks
> > pvqspinlock, x86: Allow unfair spinlock in a PV guest
> > pvqspinlock: Enable lock stealing in queue lock waiters
> > pvqspinlock, x86: Rename paravirt_ticketlocks_enabled
> > pvqspinlock, x86: Add qspinlock para-virtualization support
> > pvqspinlock, x86: Enable qspinlock PV support for KVM
> > pvqspinlock, x86: Enable qspinlock PV support for XEN
> >
> > arch/x86/Kconfig | 12 +
> > arch/x86/include/asm/paravirt.h | 17 +-
> > arch/x86/include/asm/paravirt_types.h | 16 +
> > arch/x86/include/asm/pvqspinlock.h | 260 +++++++++
> > arch/x86/include/asm/qspinlock.h | 191 +++++++
> > arch/x86/include/asm/spinlock.h | 9 +-
> > arch/x86/include/asm/spinlock_types.h | 4 +
> > arch/x86/kernel/Makefile | 1 +
> > arch/x86/kernel/kvm.c | 113 ++++-
> > arch/x86/kernel/paravirt-spinlocks.c | 36 ++-
> > arch/x86/xen/spinlock.c | 121 ++++-
> > include/asm-generic/qspinlock.h | 126 ++++
> > include/asm-generic/qspinlock_types.h | 63 ++
> > kernel/Kconfig.locks | 7 +
> > kernel/locking/Makefile | 1 +
> > kernel/locking/qspinlock.c | 1010 +++++++++++++++++++++++++++++++++
> > 16 files changed, 1975 insertions(+), 12 deletions(-)
> > create mode 100644 arch/x86/include/asm/pvqspinlock.h
> > create mode 100644 arch/x86/include/asm/qspinlock.h
> > create mode 100644 include/asm-generic/qspinlock.h
> > create mode 100644 include/asm-generic/qspinlock_types.h
> > create mode 100644 kernel/locking/qspinlock.c
> >
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
2014-04-02 14:32 ` Konrad Rzeszutek Wilk
` (3 preceding siblings ...)
(?)
@ 2014-04-04 15:25 ` Konrad Rzeszutek Wilk
-1 siblings, 0 replies; 109+ messages in thread
From: Konrad Rzeszutek Wilk @ 2014-04-04 15:25 UTC (permalink / raw)
To: Waiman Long, Marcos Matsunaga
Cc: x86, Gleb Natapov, Peter Zijlstra, virtualization,
H. Peter Anvin, Thomas Gleixner, linux-arch, kvm,
Raghavendra K T, Ingo Molnar, xen-devel, Paul E. McKenney,
Scott J Norton, Paolo Bonzini, Oleg Nesterov, boris.ostrovsky,
Aswin Chandramouleeswaran, Chegu Vinod, linux-kernel,
David Vrabel, Linus Torvalds
On Wed, Apr 02, 2014 at 10:32:01AM -0400, Konrad Rzeszutek Wilk wrote:
> On Wed, Apr 02, 2014 at 09:27:29AM -0400, Waiman Long wrote:
> > N.B. Sorry for the duplicate. This patch series were resent as the
> > original one was rejected by the vger.kernel.org list server
> > due to long header. There is no change in content.
> >
> > v7->v8:
> > - Remove one unneeded atomic operation from the slowpath, thus
> > improving performance.
> > - Simplify some of the codes and add more comments.
> > - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
> > unfair lock.
> > - Reduce unfair lock slowpath lock stealing frequency depending
> > on its distance from the queue head.
> > - Add performance data for IvyBridge-EX CPU.
>
> FYI, your v7 patch with 32 VCPUs (on a 32 cpu socket machine) on an
> HVM guest under Xen after a while stops working. The workload
> is doing 'make -j32' on the Linux kernel.
>
> Completely unresponsive. Thoughts?
Each VCPU seems to be stuck with this stack trace:
rip: ffffffff810013a8 xen_hypercall_sched_op+0x8
flags: 00000002 nz
rsp: ffff88029f13fb98
rax: 0000000000000000 rcx: 00000000fffffffa rdx: 0000000000000000
rbx: 0000000000000000 rsi: ffff88029f13fba8 rdi: 0000000000000003
rbp: ffff88029f13fbd0 r8: ffff8807ee65a1c0 r9: ffff88080d800b10
r10: 00000000000048cb r11: 0000000000000000 r12: 0000000000000013
r13: 0000000000000004 r14: 0000000000000001 r15: ffffea00076a8cd0
cs: 0010 ss: 0000 ds: 0000 es: 0000
fs: 0000 @ 00002b24c3e7e380
gs: 0000 @ ffff88080e200000/0000000000000000
Code (instr addr ffffffff810013a8)
cc cc cc cc cc cc cc cc cc cc cc cc cc b8 1d 00 00 00 0f 01 c1 <c3> cc cc cc cc cc cc cc cc cc cc
Stack:
ffffffff81352d9e 000000299f13fbb0 ffff88029f13fba4 ffff880200000001
0000000000000000 ffff88029f13fbd0 0000000000000045 ffff88029f13fbe0
ffffffff81354240 ffff88029f13fc00 ffffffff81012cb6 ffff88080f4da200
ffff88080e214b00 ffff88029f13fc48 ffffffff815e4631 0000000000000000
Call Trace:
[<ffffffff810013a8>] xen_hypercall_sched_op+0x8 <--
[<ffffffff81352d9e>] xen_poll_irq_timeout+0x3e
[<ffffffff81354240>] xen_poll_irq+0x10
[<ffffffff81012cb6>] xen_hibernate+0x46
[<ffffffff815e4631>] queue_spin_lock_slowerpath+0x84
[<ffffffff810ab96e>] queue_spin_lock_slowpath+0xee
[<ffffffff815eff8f>] _raw_spin_lock_irqsave+0x3f
[<ffffffff81144e4d>] pagevec_lru_move_fn+0x8d
[<ffffffff81144780>] __pagevec_lru_add_fn
[<ffffffff81144ed7>] __pagevec_lru_add+0x17
[<ffffffff81145540>] __lru_cache_add+0x60
[<ffffffff8114590e>] lru_cache_add+0xe
[<ffffffff8116d4ba>] page_add_new_anon_rmap+0xda
[<ffffffff81162ab1>] handle_mm_fault+0xaa1
[<ffffffff81169d42>] mmap_region+0x2c2
[<ffffffff815f3c4d>] __do_page_fault+0x18d
[<ffffffff811544e1>] vm_mmap_pgoff+0xb1
[<ffffffff815f3fdb>] do_page_fault+0x2b
[<ffffffff815f06c8>] page_fault+0x28
rip: ffffffff810013a8 xen_hypercall_sched_op+0x8
>
> (CC ing Marcos who had run the test)
> >
> > v6->v7:
> > - Remove an atomic operation from the 2-task contending code
> > - Shorten the names of some macros
> > - Make the queue waiter to attempt to steal lock when unfair lock is
> > enabled.
> > - Remove lock holder kick from the PV code and fix a race condition
> > - Run the unfair lock & PV code on overcommitted KVM guests to collect
> > performance data.
> >
> > v5->v6:
> > - Change the optimized 2-task contending code to make it fairer at the
> > expense of a bit of performance.
> > - Add a patch to support unfair queue spinlock for Xen.
> > - Modify the PV qspinlock code to follow what was done in the PV
> > ticketlock.
> > - Add performance data for the unfair lock as well as the PV
> > support code.
> >
> > v4->v5:
> > - Move the optimized 2-task contending code to the generic file to
> > enable more architectures to use it without code duplication.
> > - Address some of the style-related comments by PeterZ.
> > - Allow the use of unfair queue spinlock in a real para-virtualized
> > execution environment.
> > - Add para-virtualization support to the qspinlock code by ensuring
> > that the lock holder and queue head stay alive as much as possible.
> >
> > v3->v4:
> > - Remove debugging code and fix a configuration error
> > - Simplify the qspinlock structure and streamline the code to make it
> > perform a bit better
> > - Add an x86 version of asm/qspinlock.h for holding x86 specific
> > optimization.
> > - Add an optimized x86 code path for 2 contending tasks to improve
> > low contention performance.
> >
> > v2->v3:
> > - Simplify the code by using numerous mode only without an unfair option.
> > - Use the latest smp_load_acquire()/smp_store_release() barriers.
> > - Move the queue spinlock code to kernel/locking.
> > - Make the use of queue spinlock the default for x86-64 without user
> > configuration.
> > - Additional performance tuning.
> >
> > v1->v2:
> > - Add some more comments to document what the code does.
> > - Add a numerous CPU mode to support >= 16K CPUs
> > - Add a configuration option to allow lock stealing which can further
> > improve performance in many cases.
> > - Enable wakeup of queue head CPU at unlock time for non-numerous
> > CPU mode.
> >
> > This patch set has 3 different sections:
> > 1) Patches 1-4: Introduces a queue-based spinlock implementation that
> > can replace the default ticket spinlock without increasing the
> > size of the spinlock data structure. As a result, critical kernel
> > data structures that embed spinlock won't increase in size and
> > break data alignments.
> > 2) Patches 5-6: Enables the use of unfair queue spinlock in a
> > para-virtualized execution environment. This can resolve some
> > of the locking related performance issues due to the fact that
> > the next CPU to get the lock may have been scheduled out for a
> > period of time.
> > 3) Patches 7-10: Enable qspinlock para-virtualization support
> > by halting the waiting CPUs after spinning for a certain amount of
> > time. The unlock code will detect the a sleeping waiter and wake it
> > up. This is essentially the same logic as the PV ticketlock code.
> >
> > The queue spinlock has slightly better performance than the ticket
> > spinlock in uncontended case. Its performance can be much better
> > with moderate to heavy contention. This patch has the potential of
> > improving the performance of all the workloads that have moderate to
> > heavy spinlock contention.
> >
> > The queue spinlock is especially suitable for NUMA machines with at
> > least 2 sockets, though noticeable performance benefit probably won't
> > show up in machines with less than 4 sockets.
> >
> > The purpose of this patch set is not to solve any particular spinlock
> > contention problems. Those need to be solved by refactoring the code
> > to make more efficient use of the lock or finer granularity ones. The
> > main purpose is to make the lock contention problems more tolerable
> > until someone can spend the time and effort to fix them.
> >
> > To illustrate the performance benefit of the queue spinlock, the
> > ebizzy benchmark was run with the -m option in two different computers:
> >
> > Test machine ticket-lock queue-lock
> > ------------ ----------- ----------
> > 4-socket 40-core 2316 rec/s 2899 rec/s
> > Westmere-EX (HT off)
> > 2-socket 12-core 2130 rec/s 2176 rec/s
> > Westmere-EP (HT on)
> >
> > Waiman Long (10):
> > qspinlock: A generic 4-byte queue spinlock implementation
> > qspinlock, x86: Enable x86-64 to use queue spinlock
> > qspinlock: More optimized code for smaller NR_CPUS
> > qspinlock: Optimized code path for 2 contending tasks
> > pvqspinlock, x86: Allow unfair spinlock in a PV guest
> > pvqspinlock: Enable lock stealing in queue lock waiters
> > pvqspinlock, x86: Rename paravirt_ticketlocks_enabled
> > pvqspinlock, x86: Add qspinlock para-virtualization support
> > pvqspinlock, x86: Enable qspinlock PV support for KVM
> > pvqspinlock, x86: Enable qspinlock PV support for XEN
> >
> > arch/x86/Kconfig | 12 +
> > arch/x86/include/asm/paravirt.h | 17 +-
> > arch/x86/include/asm/paravirt_types.h | 16 +
> > arch/x86/include/asm/pvqspinlock.h | 260 +++++++++
> > arch/x86/include/asm/qspinlock.h | 191 +++++++
> > arch/x86/include/asm/spinlock.h | 9 +-
> > arch/x86/include/asm/spinlock_types.h | 4 +
> > arch/x86/kernel/Makefile | 1 +
> > arch/x86/kernel/kvm.c | 113 ++++-
> > arch/x86/kernel/paravirt-spinlocks.c | 36 ++-
> > arch/x86/xen/spinlock.c | 121 ++++-
> > include/asm-generic/qspinlock.h | 126 ++++
> > include/asm-generic/qspinlock_types.h | 63 ++
> > kernel/Kconfig.locks | 7 +
> > kernel/locking/Makefile | 1 +
> > kernel/locking/qspinlock.c | 1010 +++++++++++++++++++++++++++++++++
> > 16 files changed, 1975 insertions(+), 12 deletions(-)
> > create mode 100644 arch/x86/include/asm/pvqspinlock.h
> > create mode 100644 arch/x86/include/asm/qspinlock.h
> > create mode 100644 include/asm-generic/qspinlock.h
> > create mode 100644 include/asm-generic/qspinlock_types.h
> > create mode 100644 kernel/locking/qspinlock.c
> >
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
2014-04-04 2:57 ` Waiman Long
(?)
(?)
@ 2014-04-04 16:55 ` Konrad Rzeszutek Wilk
-1 siblings, 0 replies; 109+ messages in thread
From: Konrad Rzeszutek Wilk @ 2014-04-04 16:55 UTC (permalink / raw)
To: Waiman Long, Marcos Matsunaga
Cc: Marcos Matsunaga, Thomas Gleixner, Ingo Molnar, H. Peter Anvin,
Peter Zijlstra, linux-arch, x86, linux-kernel, virtualization,
xen-devel, kvm, Paolo Bonzini, Paul E. McKenney, Rik van Riel,
Linus Torvalds, Raghavendra K T, David Vrabel, Oleg Nesterov,
Gleb Natapov, Aswin Chandramouleeswaran, Scott J Norton,
Chegu Vinod, boris.ostrovsky
On Thu, Apr 03, 2014 at 10:57:18PM -0400, Waiman Long wrote:
> On 04/03/2014 01:23 PM, Konrad Rzeszutek Wilk wrote:
> >On Wed, Apr 02, 2014 at 10:10:17PM -0400, Waiman Long wrote:
> >>On 04/02/2014 04:35 PM, Waiman Long wrote:
> >>>On 04/02/2014 10:32 AM, Konrad Rzeszutek Wilk wrote:
> >>>>On Wed, Apr 02, 2014 at 09:27:29AM -0400, Waiman Long wrote:
> >>>>>N.B. Sorry for the duplicate. This patch series were resent as the
> >>>>> original one was rejected by the vger.kernel.org list server
> >>>>> due to long header. There is no change in content.
> >>>>>
> >>>>>v7->v8:
> >>>>> - Remove one unneeded atomic operation from the slowpath, thus
> >>>>> improving performance.
> >>>>> - Simplify some of the codes and add more comments.
> >>>>> - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
> >>>>> unfair lock.
> >>>>> - Reduce unfair lock slowpath lock stealing frequency depending
> >>>>> on its distance from the queue head.
> >>>>> - Add performance data for IvyBridge-EX CPU.
> >>>>FYI, your v7 patch with 32 VCPUs (on a 32 cpu socket machine) on an
> >>>>HVM guest under Xen after a while stops working. The workload
> >>>>is doing 'make -j32' on the Linux kernel.
> >>>>
> >>>>Completely unresponsive. Thoughts?
> >>>>
> >>>Thank for reporting that. I haven't done that much testing on Xen.
> >>>My focus was in KVM. I will perform more test on Xen to see if I
> >>>can reproduce the problem.
> >>>
> >>BTW, does the halting and sending IPI mechanism work in HVM? I saw
> >Yes.
> >>that in RHEL7, PV spinlock was explicitly disabled when in HVM mode.
> >>However, this piece of code isn't in upstream code. So I wonder if
> >>there is problem with that.
> >The PV ticketlock fixed it for HVM. It was disabled before because
> >the PV guests were using bytelocks while the HVM were using ticketlocks
> >and you couldnt' swap in PV bytelocks for ticketlocks during startup.
>
> The RHEL7 code has used PV ticketlock already. RHEL7 uses a single
> kernel for all configurations. So PV ticketlock as well as Xen and
> KVM support was compiled in. I think booting the kernel on bare
> metal will cause the Xen code to work in HVM mode thus activating
> the PV spinlock code which has a negative impact on performance.
Huh? -EPARSE
> That may be why it was disabled so that the bare metal performance
> will not be impacted.
I am not following you.
>
> BTW, could you send me more information about the configuration of
> the machine, like the .config file that you used?
Marcos, could you please send that information to Peter. Thanks!
>
> -Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
@ 2014-04-04 16:55 ` Konrad Rzeszutek Wilk
0 siblings, 0 replies; 109+ messages in thread
From: Konrad Rzeszutek Wilk @ 2014-04-04 16:55 UTC (permalink / raw)
To: Waiman Long
Cc: x86, Gleb Natapov, Peter Zijlstra, virtualization,
Marcos Matsunaga, H. Peter Anvin, boris.ostrovsky, linux-arch,
kvm, Raghavendra K T, Ingo Molnar, xen-devel, Paul E. McKenney,
Rik van Riel, Scott J Norton, Paolo Bonzini, Oleg Nesterov,
Thomas Gleixner, Aswin Chandramouleeswaran, Chegu Vinod,
linux-kernel, David Vrabel, Linus Torvalds
On Thu, Apr 03, 2014 at 10:57:18PM -0400, Waiman Long wrote:
> On 04/03/2014 01:23 PM, Konrad Rzeszutek Wilk wrote:
> >On Wed, Apr 02, 2014 at 10:10:17PM -0400, Waiman Long wrote:
> >>On 04/02/2014 04:35 PM, Waiman Long wrote:
> >>>On 04/02/2014 10:32 AM, Konrad Rzeszutek Wilk wrote:
> >>>>On Wed, Apr 02, 2014 at 09:27:29AM -0400, Waiman Long wrote:
> >>>>>N.B. Sorry for the duplicate. This patch series were resent as the
> >>>>> original one was rejected by the vger.kernel.org list server
> >>>>> due to long header. There is no change in content.
> >>>>>
> >>>>>v7->v8:
> >>>>> - Remove one unneeded atomic operation from the slowpath, thus
> >>>>> improving performance.
> >>>>> - Simplify some of the codes and add more comments.
> >>>>> - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
> >>>>> unfair lock.
> >>>>> - Reduce unfair lock slowpath lock stealing frequency depending
> >>>>> on its distance from the queue head.
> >>>>> - Add performance data for IvyBridge-EX CPU.
> >>>>FYI, your v7 patch with 32 VCPUs (on a 32 cpu socket machine) on an
> >>>>HVM guest under Xen after a while stops working. The workload
> >>>>is doing 'make -j32' on the Linux kernel.
> >>>>
> >>>>Completely unresponsive. Thoughts?
> >>>>
> >>>Thank for reporting that. I haven't done that much testing on Xen.
> >>>My focus was in KVM. I will perform more test on Xen to see if I
> >>>can reproduce the problem.
> >>>
> >>BTW, does the halting and sending IPI mechanism work in HVM? I saw
> >Yes.
> >>that in RHEL7, PV spinlock was explicitly disabled when in HVM mode.
> >>However, this piece of code isn't in upstream code. So I wonder if
> >>there is problem with that.
> >The PV ticketlock fixed it for HVM. It was disabled before because
> >the PV guests were using bytelocks while the HVM were using ticketlocks
> >and you couldnt' swap in PV bytelocks for ticketlocks during startup.
>
> The RHEL7 code has used PV ticketlock already. RHEL7 uses a single
> kernel for all configurations. So PV ticketlock as well as Xen and
> KVM support was compiled in. I think booting the kernel on bare
> metal will cause the Xen code to work in HVM mode thus activating
> the PV spinlock code which has a negative impact on performance.
Huh? -EPARSE
> That may be why it was disabled so that the bare metal performance
> will not be impacted.
I am not following you.
>
> BTW, could you send me more information about the configuration of
> the machine, like the .config file that you used?
Marcos, could you please send that information to Peter. Thanks!
>
> -Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
@ 2014-04-04 16:55 ` Konrad Rzeszutek Wilk
0 siblings, 0 replies; 109+ messages in thread
From: Konrad Rzeszutek Wilk @ 2014-04-04 16:55 UTC (permalink / raw)
To: Waiman Long, Marcos Matsunaga
Cc: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, Peter Zijlstra,
linux-arch, x86, linux-kernel, virtualization, xen-devel, kvm,
Paolo Bonzini, Paul E. McKenney, Rik van Riel, Linus Torvalds,
Raghavendra K T, David Vrabel, Oleg Nesterov, Gleb Natapov,
Aswin Chandramouleeswaran, Scott J Norton, Chegu Vinod,
boris.ostrovsky
On Thu, Apr 03, 2014 at 10:57:18PM -0400, Waiman Long wrote:
> On 04/03/2014 01:23 PM, Konrad Rzeszutek Wilk wrote:
> >On Wed, Apr 02, 2014 at 10:10:17PM -0400, Waiman Long wrote:
> >>On 04/02/2014 04:35 PM, Waiman Long wrote:
> >>>On 04/02/2014 10:32 AM, Konrad Rzeszutek Wilk wrote:
> >>>>On Wed, Apr 02, 2014 at 09:27:29AM -0400, Waiman Long wrote:
> >>>>>N.B. Sorry for the duplicate. This patch series were resent as the
> >>>>> original one was rejected by the vger.kernel.org list server
> >>>>> due to long header. There is no change in content.
> >>>>>
> >>>>>v7->v8:
> >>>>> - Remove one unneeded atomic operation from the slowpath, thus
> >>>>> improving performance.
> >>>>> - Simplify some of the codes and add more comments.
> >>>>> - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
> >>>>> unfair lock.
> >>>>> - Reduce unfair lock slowpath lock stealing frequency depending
> >>>>> on its distance from the queue head.
> >>>>> - Add performance data for IvyBridge-EX CPU.
> >>>>FYI, your v7 patch with 32 VCPUs (on a 32 cpu socket machine) on an
> >>>>HVM guest under Xen after a while stops working. The workload
> >>>>is doing 'make -j32' on the Linux kernel.
> >>>>
> >>>>Completely unresponsive. Thoughts?
> >>>>
> >>>Thank for reporting that. I haven't done that much testing on Xen.
> >>>My focus was in KVM. I will perform more test on Xen to see if I
> >>>can reproduce the problem.
> >>>
> >>BTW, does the halting and sending IPI mechanism work in HVM? I saw
> >Yes.
> >>that in RHEL7, PV spinlock was explicitly disabled when in HVM mode.
> >>However, this piece of code isn't in upstream code. So I wonder if
> >>there is problem with that.
> >The PV ticketlock fixed it for HVM. It was disabled before because
> >the PV guests were using bytelocks while the HVM were using ticketlocks
> >and you couldnt' swap in PV bytelocks for ticketlocks during startup.
>
> The RHEL7 code has used PV ticketlock already. RHEL7 uses a single
> kernel for all configurations. So PV ticketlock as well as Xen and
> KVM support was compiled in. I think booting the kernel on bare
> metal will cause the Xen code to work in HVM mode thus activating
> the PV spinlock code which has a negative impact on performance.
Huh? -EPARSE
> That may be why it was disabled so that the bare metal performance
> will not be impacted.
I am not following you.
>
> BTW, could you send me more information about the configuration of
> the machine, like the .config file that you used?
Marcos, could you please send that information to Peter. Thanks!
>
> -Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
@ 2014-04-04 16:55 ` Konrad Rzeszutek Wilk
0 siblings, 0 replies; 109+ messages in thread
From: Konrad Rzeszutek Wilk @ 2014-04-04 16:55 UTC (permalink / raw)
To: Waiman Long, Marcos Matsunaga
Cc: x86, Gleb Natapov, Peter Zijlstra, virtualization,
Marcos Matsunaga, H. Peter Anvin, boris.ostrovsky, linux-arch,
kvm, Raghavendra K T, Ingo Molnar, xen-devel, Paul E. McKenney,
Rik van Riel, Scott J Norton, Paolo Bonzini, Oleg Nesterov,
Thomas Gleixner, Aswin Chandramouleeswaran, Chegu Vinod,
linux-kernel, David Vrabel, Linus Torvalds
On Thu, Apr 03, 2014 at 10:57:18PM -0400, Waiman Long wrote:
> On 04/03/2014 01:23 PM, Konrad Rzeszutek Wilk wrote:
> >On Wed, Apr 02, 2014 at 10:10:17PM -0400, Waiman Long wrote:
> >>On 04/02/2014 04:35 PM, Waiman Long wrote:
> >>>On 04/02/2014 10:32 AM, Konrad Rzeszutek Wilk wrote:
> >>>>On Wed, Apr 02, 2014 at 09:27:29AM -0400, Waiman Long wrote:
> >>>>>N.B. Sorry for the duplicate. This patch series were resent as the
> >>>>> original one was rejected by the vger.kernel.org list server
> >>>>> due to long header. There is no change in content.
> >>>>>
> >>>>>v7->v8:
> >>>>> - Remove one unneeded atomic operation from the slowpath, thus
> >>>>> improving performance.
> >>>>> - Simplify some of the codes and add more comments.
> >>>>> - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
> >>>>> unfair lock.
> >>>>> - Reduce unfair lock slowpath lock stealing frequency depending
> >>>>> on its distance from the queue head.
> >>>>> - Add performance data for IvyBridge-EX CPU.
> >>>>FYI, your v7 patch with 32 VCPUs (on a 32 cpu socket machine) on an
> >>>>HVM guest under Xen after a while stops working. The workload
> >>>>is doing 'make -j32' on the Linux kernel.
> >>>>
> >>>>Completely unresponsive. Thoughts?
> >>>>
> >>>Thank for reporting that. I haven't done that much testing on Xen.
> >>>My focus was in KVM. I will perform more test on Xen to see if I
> >>>can reproduce the problem.
> >>>
> >>BTW, does the halting and sending IPI mechanism work in HVM? I saw
> >Yes.
> >>that in RHEL7, PV spinlock was explicitly disabled when in HVM mode.
> >>However, this piece of code isn't in upstream code. So I wonder if
> >>there is problem with that.
> >The PV ticketlock fixed it for HVM. It was disabled before because
> >the PV guests were using bytelocks while the HVM were using ticketlocks
> >and you couldnt' swap in PV bytelocks for ticketlocks during startup.
>
> The RHEL7 code has used PV ticketlock already. RHEL7 uses a single
> kernel for all configurations. So PV ticketlock as well as Xen and
> KVM support was compiled in. I think booting the kernel on bare
> metal will cause the Xen code to work in HVM mode thus activating
> the PV spinlock code which has a negative impact on performance.
Huh? -EPARSE
> That may be why it was disabled so that the bare metal performance
> will not be impacted.
I am not following you.
>
> BTW, could you send me more information about the configuration of
> the machine, like the .config file that you used?
Marcos, could you please send that information to Peter. Thanks!
>
> -Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
2014-04-04 2:57 ` Waiman Long
(?)
@ 2014-04-04 16:55 ` Konrad Rzeszutek Wilk
-1 siblings, 0 replies; 109+ messages in thread
From: Konrad Rzeszutek Wilk @ 2014-04-04 16:55 UTC (permalink / raw)
To: Waiman Long
Cc: x86, Gleb Natapov, Peter Zijlstra, virtualization,
Marcos Matsunaga, H. Peter Anvin, boris.ostrovsky, linux-arch,
kvm, Raghavendra K T, Ingo Molnar, xen-devel, Paul E. McKenney,
Scott J Norton, Paolo Bonzini, Oleg Nesterov, Thomas Gleixner,
Aswin Chandramouleeswaran, Chegu Vinod, linux-kernel,
David Vrabel, Linus Torvalds
On Thu, Apr 03, 2014 at 10:57:18PM -0400, Waiman Long wrote:
> On 04/03/2014 01:23 PM, Konrad Rzeszutek Wilk wrote:
> >On Wed, Apr 02, 2014 at 10:10:17PM -0400, Waiman Long wrote:
> >>On 04/02/2014 04:35 PM, Waiman Long wrote:
> >>>On 04/02/2014 10:32 AM, Konrad Rzeszutek Wilk wrote:
> >>>>On Wed, Apr 02, 2014 at 09:27:29AM -0400, Waiman Long wrote:
> >>>>>N.B. Sorry for the duplicate. This patch series were resent as the
> >>>>> original one was rejected by the vger.kernel.org list server
> >>>>> due to long header. There is no change in content.
> >>>>>
> >>>>>v7->v8:
> >>>>> - Remove one unneeded atomic operation from the slowpath, thus
> >>>>> improving performance.
> >>>>> - Simplify some of the codes and add more comments.
> >>>>> - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
> >>>>> unfair lock.
> >>>>> - Reduce unfair lock slowpath lock stealing frequency depending
> >>>>> on its distance from the queue head.
> >>>>> - Add performance data for IvyBridge-EX CPU.
> >>>>FYI, your v7 patch with 32 VCPUs (on a 32 cpu socket machine) on an
> >>>>HVM guest under Xen after a while stops working. The workload
> >>>>is doing 'make -j32' on the Linux kernel.
> >>>>
> >>>>Completely unresponsive. Thoughts?
> >>>>
> >>>Thank for reporting that. I haven't done that much testing on Xen.
> >>>My focus was in KVM. I will perform more test on Xen to see if I
> >>>can reproduce the problem.
> >>>
> >>BTW, does the halting and sending IPI mechanism work in HVM? I saw
> >Yes.
> >>that in RHEL7, PV spinlock was explicitly disabled when in HVM mode.
> >>However, this piece of code isn't in upstream code. So I wonder if
> >>there is problem with that.
> >The PV ticketlock fixed it for HVM. It was disabled before because
> >the PV guests were using bytelocks while the HVM were using ticketlocks
> >and you couldnt' swap in PV bytelocks for ticketlocks during startup.
>
> The RHEL7 code has used PV ticketlock already. RHEL7 uses a single
> kernel for all configurations. So PV ticketlock as well as Xen and
> KVM support was compiled in. I think booting the kernel on bare
> metal will cause the Xen code to work in HVM mode thus activating
> the PV spinlock code which has a negative impact on performance.
Huh? -EPARSE
> That may be why it was disabled so that the bare metal performance
> will not be impacted.
I am not following you.
>
> BTW, could you send me more information about the configuration of
> the machine, like the .config file that you used?
Marcos, could you please send that information to Peter. Thanks!
>
> -Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation
2014-04-04 13:00 ` Peter Zijlstra
@ 2014-04-04 16:57 ` Konrad Rzeszutek Wilk
-1 siblings, 0 replies; 109+ messages in thread
From: Konrad Rzeszutek Wilk @ 2014-04-04 16:57 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Waiman Long, Thomas Gleixner, Ingo Molnar, H. Peter Anvin,
linux-arch, x86, linux-kernel, virtualization, xen-devel, kvm,
Paolo Bonzini, Paul E. McKenney, Rik van Riel, Linus Torvalds,
Raghavendra K T, David Vrabel, Oleg Nesterov, Gleb Natapov,
Aswin Chandramouleeswaran, Scott J Norton, Chegu Vinod,
Marcos Matsunaga
On Fri, Apr 04, 2014 at 03:00:12PM +0200, Peter Zijlstra wrote:
>
> So I'm just not ever going to pick up this patch; I spend a week trying
> to reverse engineer this; I posted a 7 patch series creating the
> equivalent, but in a gradual and readable fashion:
>
> http://lkml.kernel.org/r/20140310154236.038181843@infradead.org
>
> You keep on ignoring that; I'll keep on ignoring your patches.
>
> I might at some point rewrite some of your pv stuff on top to get this
> moving again, but I'm not really motivated to work with you atm.
Uh? Did you CC also xen-devel@lists.xenproject.org on your patches Peter?
I hadn't had a chance to see or comment on them :-(
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation
@ 2014-04-04 16:57 ` Konrad Rzeszutek Wilk
0 siblings, 0 replies; 109+ messages in thread
From: Konrad Rzeszutek Wilk @ 2014-04-04 16:57 UTC (permalink / raw)
To: Peter Zijlstra
Cc: x86, Gleb Natapov, Aswin Chandramouleeswaran, Marcos Matsunaga,
H. Peter Anvin, linux-arch, kvm, Raghavendra K T, Ingo Molnar,
xen-devel, Paul E. McKenney, Rik van Riel, Scott J Norton,
Paolo Bonzini, Oleg Nesterov, Thomas Gleixner, virtualization,
Chegu Vinod, Waiman Long, linux-kernel, David Vrabel,
Linus Torvalds
On Fri, Apr 04, 2014 at 03:00:12PM +0200, Peter Zijlstra wrote:
>
> So I'm just not ever going to pick up this patch; I spend a week trying
> to reverse engineer this; I posted a 7 patch series creating the
> equivalent, but in a gradual and readable fashion:
>
> http://lkml.kernel.org/r/20140310154236.038181843@infradead.org
>
> You keep on ignoring that; I'll keep on ignoring your patches.
>
> I might at some point rewrite some of your pv stuff on top to get this
> moving again, but I'm not really motivated to work with you atm.
Uh? Did you CC also xen-devel@lists.xenproject.org on your patches Peter?
I hadn't had a chance to see or comment on them :-(
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation
2014-04-04 13:00 ` Peter Zijlstra
` (2 preceding siblings ...)
(?)
@ 2014-04-04 16:57 ` Konrad Rzeszutek Wilk
-1 siblings, 0 replies; 109+ messages in thread
From: Konrad Rzeszutek Wilk @ 2014-04-04 16:57 UTC (permalink / raw)
To: Peter Zijlstra
Cc: x86, Gleb Natapov, Aswin Chandramouleeswaran, Marcos Matsunaga,
H. Peter Anvin, linux-arch, kvm, Raghavendra K T, Ingo Molnar,
xen-devel, Paul E. McKenney, Scott J Norton, Paolo Bonzini,
Oleg Nesterov, Thomas Gleixner, virtualization, Chegu Vinod,
Waiman Long, linux-kernel, David Vrabel, Linus Torvalds
On Fri, Apr 04, 2014 at 03:00:12PM +0200, Peter Zijlstra wrote:
>
> So I'm just not ever going to pick up this patch; I spend a week trying
> to reverse engineer this; I posted a 7 patch series creating the
> equivalent, but in a gradual and readable fashion:
>
> http://lkml.kernel.org/r/20140310154236.038181843@infradead.org
>
> You keep on ignoring that; I'll keep on ignoring your patches.
>
> I might at some point rewrite some of your pv stuff on top to get this
> moving again, but I'm not really motivated to work with you atm.
Uh? Did you CC also xen-devel@lists.xenproject.org on your patches Peter?
I hadn't had a chance to see or comment on them :-(
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation
2014-04-04 16:57 ` Konrad Rzeszutek Wilk
@ 2014-04-04 17:08 ` Waiman Long
-1 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-04 17:08 UTC (permalink / raw)
To: Konrad Rzeszutek Wilk
Cc: Peter Zijlstra, Thomas Gleixner, Ingo Molnar, H. Peter Anvin,
linux-arch, x86, linux-kernel, virtualization, xen-devel, kvm,
Paolo Bonzini, Paul E. McKenney, Rik van Riel, Linus Torvalds,
Raghavendra K T, David Vrabel, Oleg Nesterov, Gleb Natapov,
Aswin Chandramouleeswaran, Scott J Norton, Chegu Vinod,
Marcos Matsunaga
On 04/04/2014 12:57 PM, Konrad Rzeszutek Wilk wrote:
> On Fri, Apr 04, 2014 at 03:00:12PM +0200, Peter Zijlstra wrote:
>> So I'm just not ever going to pick up this patch; I spend a week trying
>> to reverse engineer this; I posted a 7 patch series creating the
>> equivalent, but in a gradual and readable fashion:
>>
>> http://lkml.kernel.org/r/20140310154236.038181843@infradead.org
>>
>> You keep on ignoring that; I'll keep on ignoring your patches.
>>
>> I might at some point rewrite some of your pv stuff on top to get this
>> moving again, but I'm not really motivated to work with you atm.
> Uh? Did you CC also xen-devel@lists.xenproject.org on your patches Peter?
> I hadn't had a chance to see or comment on them :-(
>
Peter's patch is a rewrite of my patches 1-4, there is no PV or unfair
lock support in there.
-Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation
@ 2014-04-04 17:08 ` Waiman Long
0 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-04 17:08 UTC (permalink / raw)
To: Konrad Rzeszutek Wilk
Cc: x86, Gleb Natapov, Peter Zijlstra, virtualization,
Marcos Matsunaga, H. Peter Anvin, linux-arch, kvm,
Raghavendra K T, Ingo Molnar, xen-devel, Paul E. McKenney,
Rik van Riel, Scott J Norton, Paolo Bonzini, Oleg Nesterov,
Thomas Gleixner, Aswin Chandramouleeswaran, Chegu Vinod,
linux-kernel, David Vrabel, Linus Torvalds
On 04/04/2014 12:57 PM, Konrad Rzeszutek Wilk wrote:
> On Fri, Apr 04, 2014 at 03:00:12PM +0200, Peter Zijlstra wrote:
>> So I'm just not ever going to pick up this patch; I spend a week trying
>> to reverse engineer this; I posted a 7 patch series creating the
>> equivalent, but in a gradual and readable fashion:
>>
>> http://lkml.kernel.org/r/20140310154236.038181843@infradead.org
>>
>> You keep on ignoring that; I'll keep on ignoring your patches.
>>
>> I might at some point rewrite some of your pv stuff on top to get this
>> moving again, but I'm not really motivated to work with you atm.
> Uh? Did you CC also xen-devel@lists.xenproject.org on your patches Peter?
> I hadn't had a chance to see or comment on them :-(
>
Peter's patch is a rewrite of my patches 1-4, there is no PV or unfair
lock support in there.
-Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation
2014-04-04 16:57 ` Konrad Rzeszutek Wilk
(?)
@ 2014-04-04 17:08 ` Waiman Long
-1 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-04 17:08 UTC (permalink / raw)
To: Konrad Rzeszutek Wilk
Cc: x86, Gleb Natapov, Peter Zijlstra, virtualization,
Marcos Matsunaga, H. Peter Anvin, linux-arch, kvm,
Raghavendra K T, Ingo Molnar, xen-devel, Paul E. McKenney,
Scott J Norton, Paolo Bonzini, Oleg Nesterov, Thomas Gleixner,
Aswin Chandramouleeswaran, Chegu Vinod, linux-kernel,
David Vrabel, Linus Torvalds
On 04/04/2014 12:57 PM, Konrad Rzeszutek Wilk wrote:
> On Fri, Apr 04, 2014 at 03:00:12PM +0200, Peter Zijlstra wrote:
>> So I'm just not ever going to pick up this patch; I spend a week trying
>> to reverse engineer this; I posted a 7 patch series creating the
>> equivalent, but in a gradual and readable fashion:
>>
>> http://lkml.kernel.org/r/20140310154236.038181843@infradead.org
>>
>> You keep on ignoring that; I'll keep on ignoring your patches.
>>
>> I might at some point rewrite some of your pv stuff on top to get this
>> moving again, but I'm not really motivated to work with you atm.
> Uh? Did you CC also xen-devel@lists.xenproject.org on your patches Peter?
> I hadn't had a chance to see or comment on them :-(
>
Peter's patch is a rewrite of my patches 1-4, there is no PV or unfair
lock support in there.
-Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
2014-04-04 16:55 ` Konrad Rzeszutek Wilk
@ 2014-04-04 17:13 ` Waiman Long
-1 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-04 17:13 UTC (permalink / raw)
To: Konrad Rzeszutek Wilk
Cc: Marcos Matsunaga, Thomas Gleixner, Ingo Molnar, H. Peter Anvin,
Peter Zijlstra, linux-arch, x86, linux-kernel, virtualization,
xen-devel, kvm, Paolo Bonzini, Paul E. McKenney, Rik van Riel,
Linus Torvalds, Raghavendra K T, David Vrabel, Oleg Nesterov,
Gleb Natapov, Aswin Chandramouleeswaran, Scott J Norton,
Chegu Vinod, boris.ostrovsky
On 04/04/2014 12:55 PM, Konrad Rzeszutek Wilk wrote:
> On Thu, Apr 03, 2014 at 10:57:18PM -0400, Waiman Long wrote:
>> On 04/03/2014 01:23 PM, Konrad Rzeszutek Wilk wrote:
>>> On Wed, Apr 02, 2014 at 10:10:17PM -0400, Waiman Long wrote:
>>>> On 04/02/2014 04:35 PM, Waiman Long wrote:
>>>>> On 04/02/2014 10:32 AM, Konrad Rzeszutek Wilk wrote:
>>>>>> On Wed, Apr 02, 2014 at 09:27:29AM -0400, Waiman Long wrote:
>>>>>>> N.B. Sorry for the duplicate. This patch series were resent as the
>>>>>>> original one was rejected by the vger.kernel.org list server
>>>>>>> due to long header. There is no change in content.
>>>>>>>
>>>>>>> v7->v8:
>>>>>>> - Remove one unneeded atomic operation from the slowpath, thus
>>>>>>> improving performance.
>>>>>>> - Simplify some of the codes and add more comments.
>>>>>>> - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
>>>>>>> unfair lock.
>>>>>>> - Reduce unfair lock slowpath lock stealing frequency depending
>>>>>>> on its distance from the queue head.
>>>>>>> - Add performance data for IvyBridge-EX CPU.
>>>>>> FYI, your v7 patch with 32 VCPUs (on a 32 cpu socket machine) on an
>>>>>> HVM guest under Xen after a while stops working. The workload
>>>>>> is doing 'make -j32' on the Linux kernel.
>>>>>>
>>>>>> Completely unresponsive. Thoughts?
>>>>>>
>>>>> Thank for reporting that. I haven't done that much testing on Xen.
>>>>> My focus was in KVM. I will perform more test on Xen to see if I
>>>>> can reproduce the problem.
>>>>>
>>>> BTW, does the halting and sending IPI mechanism work in HVM? I saw
>>> Yes.
>>>> that in RHEL7, PV spinlock was explicitly disabled when in HVM mode.
>>>> However, this piece of code isn't in upstream code. So I wonder if
>>>> there is problem with that.
>>> The PV ticketlock fixed it for HVM. It was disabled before because
>>> the PV guests were using bytelocks while the HVM were using ticketlocks
>>> and you couldnt' swap in PV bytelocks for ticketlocks during startup.
>> The RHEL7 code has used PV ticketlock already. RHEL7 uses a single
>> kernel for all configurations. So PV ticketlock as well as Xen and
>> KVM support was compiled in. I think booting the kernel on bare
>> metal will cause the Xen code to work in HVM mode thus activating
>> the PV spinlock code which has a negative impact on performance.
> Huh? -EPARSE
>
>> That may be why it was disabled so that the bare metal performance
>> will not be impacted.
> I am not following you.
What I am saying is that when XEN and PV spinlock is compiled into the
current upstream kernel, the PV spinlock jump label is turned on when
booted on bare metal. In other words, the PV spinlock code is active
even when they are not needed and actually slow thing down in that
situation. This is a problem and we need to find way to make sure that
the PV spinlock code won't be activated on bare metal.
-Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
@ 2014-04-04 17:13 ` Waiman Long
0 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-04 17:13 UTC (permalink / raw)
To: Konrad Rzeszutek Wilk
Cc: x86, Gleb Natapov, Peter Zijlstra, virtualization,
Marcos Matsunaga, H. Peter Anvin, boris.ostrovsky, linux-arch,
kvm, Raghavendra K T, Ingo Molnar, xen-devel, Paul E. McKenney,
Rik van Riel, Scott J Norton, Paolo Bonzini, Oleg Nesterov,
Thomas Gleixner, Aswin Chandramouleeswaran, Chegu Vinod,
linux-kernel, David Vrabel, Linus Torvalds
On 04/04/2014 12:55 PM, Konrad Rzeszutek Wilk wrote:
> On Thu, Apr 03, 2014 at 10:57:18PM -0400, Waiman Long wrote:
>> On 04/03/2014 01:23 PM, Konrad Rzeszutek Wilk wrote:
>>> On Wed, Apr 02, 2014 at 10:10:17PM -0400, Waiman Long wrote:
>>>> On 04/02/2014 04:35 PM, Waiman Long wrote:
>>>>> On 04/02/2014 10:32 AM, Konrad Rzeszutek Wilk wrote:
>>>>>> On Wed, Apr 02, 2014 at 09:27:29AM -0400, Waiman Long wrote:
>>>>>>> N.B. Sorry for the duplicate. This patch series were resent as the
>>>>>>> original one was rejected by the vger.kernel.org list server
>>>>>>> due to long header. There is no change in content.
>>>>>>>
>>>>>>> v7->v8:
>>>>>>> - Remove one unneeded atomic operation from the slowpath, thus
>>>>>>> improving performance.
>>>>>>> - Simplify some of the codes and add more comments.
>>>>>>> - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
>>>>>>> unfair lock.
>>>>>>> - Reduce unfair lock slowpath lock stealing frequency depending
>>>>>>> on its distance from the queue head.
>>>>>>> - Add performance data for IvyBridge-EX CPU.
>>>>>> FYI, your v7 patch with 32 VCPUs (on a 32 cpu socket machine) on an
>>>>>> HVM guest under Xen after a while stops working. The workload
>>>>>> is doing 'make -j32' on the Linux kernel.
>>>>>>
>>>>>> Completely unresponsive. Thoughts?
>>>>>>
>>>>> Thank for reporting that. I haven't done that much testing on Xen.
>>>>> My focus was in KVM. I will perform more test on Xen to see if I
>>>>> can reproduce the problem.
>>>>>
>>>> BTW, does the halting and sending IPI mechanism work in HVM? I saw
>>> Yes.
>>>> that in RHEL7, PV spinlock was explicitly disabled when in HVM mode.
>>>> However, this piece of code isn't in upstream code. So I wonder if
>>>> there is problem with that.
>>> The PV ticketlock fixed it for HVM. It was disabled before because
>>> the PV guests were using bytelocks while the HVM were using ticketlocks
>>> and you couldnt' swap in PV bytelocks for ticketlocks during startup.
>> The RHEL7 code has used PV ticketlock already. RHEL7 uses a single
>> kernel for all configurations. So PV ticketlock as well as Xen and
>> KVM support was compiled in. I think booting the kernel on bare
>> metal will cause the Xen code to work in HVM mode thus activating
>> the PV spinlock code which has a negative impact on performance.
> Huh? -EPARSE
>
>> That may be why it was disabled so that the bare metal performance
>> will not be impacted.
> I am not following you.
What I am saying is that when XEN and PV spinlock is compiled into the
current upstream kernel, the PV spinlock jump label is turned on when
booted on bare metal. In other words, the PV spinlock code is active
even when they are not needed and actually slow thing down in that
situation. This is a problem and we need to find way to make sure that
the PV spinlock code won't be activated on bare metal.
-Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
2014-04-04 16:55 ` Konrad Rzeszutek Wilk
` (2 preceding siblings ...)
(?)
@ 2014-04-04 17:13 ` Waiman Long
-1 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-04 17:13 UTC (permalink / raw)
To: Konrad Rzeszutek Wilk
Cc: x86, Gleb Natapov, Peter Zijlstra, virtualization,
Marcos Matsunaga, H. Peter Anvin, boris.ostrovsky, linux-arch,
kvm, Raghavendra K T, Ingo Molnar, xen-devel, Paul E. McKenney,
Scott J Norton, Paolo Bonzini, Oleg Nesterov, Thomas Gleixner,
Aswin Chandramouleeswaran, Chegu Vinod, linux-kernel,
David Vrabel, Linus Torvalds
On 04/04/2014 12:55 PM, Konrad Rzeszutek Wilk wrote:
> On Thu, Apr 03, 2014 at 10:57:18PM -0400, Waiman Long wrote:
>> On 04/03/2014 01:23 PM, Konrad Rzeszutek Wilk wrote:
>>> On Wed, Apr 02, 2014 at 10:10:17PM -0400, Waiman Long wrote:
>>>> On 04/02/2014 04:35 PM, Waiman Long wrote:
>>>>> On 04/02/2014 10:32 AM, Konrad Rzeszutek Wilk wrote:
>>>>>> On Wed, Apr 02, 2014 at 09:27:29AM -0400, Waiman Long wrote:
>>>>>>> N.B. Sorry for the duplicate. This patch series were resent as the
>>>>>>> original one was rejected by the vger.kernel.org list server
>>>>>>> due to long header. There is no change in content.
>>>>>>>
>>>>>>> v7->v8:
>>>>>>> - Remove one unneeded atomic operation from the slowpath, thus
>>>>>>> improving performance.
>>>>>>> - Simplify some of the codes and add more comments.
>>>>>>> - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
>>>>>>> unfair lock.
>>>>>>> - Reduce unfair lock slowpath lock stealing frequency depending
>>>>>>> on its distance from the queue head.
>>>>>>> - Add performance data for IvyBridge-EX CPU.
>>>>>> FYI, your v7 patch with 32 VCPUs (on a 32 cpu socket machine) on an
>>>>>> HVM guest under Xen after a while stops working. The workload
>>>>>> is doing 'make -j32' on the Linux kernel.
>>>>>>
>>>>>> Completely unresponsive. Thoughts?
>>>>>>
>>>>> Thank for reporting that. I haven't done that much testing on Xen.
>>>>> My focus was in KVM. I will perform more test on Xen to see if I
>>>>> can reproduce the problem.
>>>>>
>>>> BTW, does the halting and sending IPI mechanism work in HVM? I saw
>>> Yes.
>>>> that in RHEL7, PV spinlock was explicitly disabled when in HVM mode.
>>>> However, this piece of code isn't in upstream code. So I wonder if
>>>> there is problem with that.
>>> The PV ticketlock fixed it for HVM. It was disabled before because
>>> the PV guests were using bytelocks while the HVM were using ticketlocks
>>> and you couldnt' swap in PV bytelocks for ticketlocks during startup.
>> The RHEL7 code has used PV ticketlock already. RHEL7 uses a single
>> kernel for all configurations. So PV ticketlock as well as Xen and
>> KVM support was compiled in. I think booting the kernel on bare
>> metal will cause the Xen code to work in HVM mode thus activating
>> the PV spinlock code which has a negative impact on performance.
> Huh? -EPARSE
>
>> That may be why it was disabled so that the bare metal performance
>> will not be impacted.
> I am not following you.
What I am saying is that when XEN and PV spinlock is compiled into the
current upstream kernel, the PV spinlock jump label is turned on when
booted on bare metal. In other words, the PV spinlock code is active
even when they are not needed and actually slow thing down in that
situation. This is a problem and we need to find way to make sure that
the PV spinlock code won't be activated on bare metal.
-Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation
2014-04-04 14:59 ` Waiman Long
@ 2014-04-04 17:53 ` Ingo Molnar
-1 siblings, 0 replies; 109+ messages in thread
From: Ingo Molnar @ 2014-04-04 17:53 UTC (permalink / raw)
To: Waiman Long
Cc: Peter Zijlstra, Thomas Gleixner, Ingo Molnar, H. Peter Anvin,
linux-arch, x86, linux-kernel, virtualization, xen-devel, kvm,
Paolo Bonzini, Konrad Rzeszutek Wilk, Paul E. McKenney,
Rik van Riel, Linus Torvalds, Raghavendra K T, David Vrabel,
Oleg Nesterov, Gleb Natapov, Aswin Chandramouleeswaran,
Scott J Norton, Chegu Vinod
* Waiman Long <waiman.long@hp.com> wrote:
> On 04/04/2014 09:00 AM, Peter Zijlstra wrote:
> >
> > So I'm just not ever going to pick up this patch; I spend a week
> > trying to reverse engineer this; I posted a 7 patch series
> > creating the equivalent, but in a gradual and readable fashion:
> >
> > http://lkml.kernel.org/r/20140310154236.038181843@infradead.org
> >
> > You keep on ignoring that; I'll keep on ignoring your patches.
> >
> > I might at some point rewrite some of your pv stuff on top to get
> > this moving again, but I'm not really motivated to work with you
> > atm.
>
> Peter, I am sorry that I have focused recently on making the
> qspinlock patch works with virtualization and it is easier for me to
> based off on my patch initially. Now the PV part is almost done, I
> will apply them on top of your patch. Hopefully, I will get a new
> patch out sometime next week.
Note that it's not "a patch" that PeterZ posted, but a series of 7
finegrained patches, each properly documented and commented. Please
preserve that work, build on top of it, and don't just ignore it!
Thanks,
Ingo
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation
@ 2014-04-04 17:53 ` Ingo Molnar
0 siblings, 0 replies; 109+ messages in thread
From: Ingo Molnar @ 2014-04-04 17:53 UTC (permalink / raw)
To: Waiman Long
Cc: x86, Gleb Natapov, Peter Zijlstra, virtualization,
H. Peter Anvin, linux-arch, kvm, Raghavendra K T, Ingo Molnar,
xen-devel, Paul E. McKenney, Rik van Riel, Konrad Rzeszutek Wilk,
Scott J Norton, Paolo Bonzini, Oleg Nesterov, Thomas Gleixner,
Aswin Chandramouleeswaran, Chegu Vinod, linux-kernel,
David Vrabel, Linus Torvalds
* Waiman Long <waiman.long@hp.com> wrote:
> On 04/04/2014 09:00 AM, Peter Zijlstra wrote:
> >
> > So I'm just not ever going to pick up this patch; I spend a week
> > trying to reverse engineer this; I posted a 7 patch series
> > creating the equivalent, but in a gradual and readable fashion:
> >
> > http://lkml.kernel.org/r/20140310154236.038181843@infradead.org
> >
> > You keep on ignoring that; I'll keep on ignoring your patches.
> >
> > I might at some point rewrite some of your pv stuff on top to get
> > this moving again, but I'm not really motivated to work with you
> > atm.
>
> Peter, I am sorry that I have focused recently on making the
> qspinlock patch works with virtualization and it is easier for me to
> based off on my patch initially. Now the PV part is almost done, I
> will apply them on top of your patch. Hopefully, I will get a new
> patch out sometime next week.
Note that it's not "a patch" that PeterZ posted, but a series of 7
finegrained patches, each properly documented and commented. Please
preserve that work, build on top of it, and don't just ignore it!
Thanks,
Ingo
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation
2014-04-04 14:59 ` Waiman Long
(?)
@ 2014-04-04 17:53 ` Ingo Molnar
-1 siblings, 0 replies; 109+ messages in thread
From: Ingo Molnar @ 2014-04-04 17:53 UTC (permalink / raw)
To: Waiman Long
Cc: x86, Gleb Natapov, Peter Zijlstra, virtualization,
H. Peter Anvin, linux-arch, kvm, Raghavendra K T, Ingo Molnar,
xen-devel, Paul E. McKenney, Scott J Norton, Paolo Bonzini,
Oleg Nesterov, Thomas Gleixner, Aswin Chandramouleeswaran,
Chegu Vinod, linux-kernel, David Vrabel, Linus Torvalds
* Waiman Long <waiman.long@hp.com> wrote:
> On 04/04/2014 09:00 AM, Peter Zijlstra wrote:
> >
> > So I'm just not ever going to pick up this patch; I spend a week
> > trying to reverse engineer this; I posted a 7 patch series
> > creating the equivalent, but in a gradual and readable fashion:
> >
> > http://lkml.kernel.org/r/20140310154236.038181843@infradead.org
> >
> > You keep on ignoring that; I'll keep on ignoring your patches.
> >
> > I might at some point rewrite some of your pv stuff on top to get
> > this moving again, but I'm not really motivated to work with you
> > atm.
>
> Peter, I am sorry that I have focused recently on making the
> qspinlock patch works with virtualization and it is easier for me to
> based off on my patch initially. Now the PV part is almost done, I
> will apply them on top of your patch. Hopefully, I will get a new
> patch out sometime next week.
Note that it's not "a patch" that PeterZ posted, but a series of 7
finegrained patches, each properly documented and commented. Please
preserve that work, build on top of it, and don't just ignore it!
Thanks,
Ingo
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation
2014-04-04 17:08 ` Waiman Long
@ 2014-04-04 17:54 ` Ingo Molnar
-1 siblings, 0 replies; 109+ messages in thread
From: Ingo Molnar @ 2014-04-04 17:54 UTC (permalink / raw)
To: Waiman Long
Cc: Konrad Rzeszutek Wilk, Peter Zijlstra, Thomas Gleixner,
Ingo Molnar, H. Peter Anvin, linux-arch, x86, linux-kernel,
virtualization, xen-devel, kvm, Paolo Bonzini, Paul E. McKenney,
Rik van Riel, Linus Torvalds, Raghavendra K T, David Vrabel,
Oleg Nesterov, Gleb Natapov, Aswin Chandramouleeswaran,
Scott J Norton, Chegu Vinod, Marcos Matsunaga
* Waiman Long <waiman.long@hp.com> wrote:
> On 04/04/2014 12:57 PM, Konrad Rzeszutek Wilk wrote:
> >On Fri, Apr 04, 2014 at 03:00:12PM +0200, Peter Zijlstra wrote:
> >>So I'm just not ever going to pick up this patch; I spend a week trying
> >>to reverse engineer this; I posted a 7 patch series creating the
> >>equivalent, but in a gradual and readable fashion:
> >>
> >> http://lkml.kernel.org/r/20140310154236.038181843@infradead.org
> >>
> >>You keep on ignoring that; I'll keep on ignoring your patches.
> >>
> >>I might at some point rewrite some of your pv stuff on top to get this
> >>moving again, but I'm not really motivated to work with you atm.
> >Uh? Did you CC also xen-devel@lists.xenproject.org on your patches Peter?
> >I hadn't had a chance to see or comment on them :-(
> >
>
> Peter's patch is a rewrite of my patches 1-4, there is no PV or
> unfair lock support in there.
It is a fine grained split-up, which does one thing at a time, so it
all becomes reviewable and mergable (and the claimed effects become
testable!). Please use that as a base.
Thanks,
Ingo
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation
@ 2014-04-04 17:54 ` Ingo Molnar
0 siblings, 0 replies; 109+ messages in thread
From: Ingo Molnar @ 2014-04-04 17:54 UTC (permalink / raw)
To: Waiman Long
Cc: x86, Gleb Natapov, Peter Zijlstra, virtualization,
Marcos Matsunaga, H. Peter Anvin, linux-arch, kvm,
Raghavendra K T, Ingo Molnar, xen-devel, Paul E. McKenney,
Rik van Riel, Konrad Rzeszutek Wilk, Scott J Norton,
Paolo Bonzini, Oleg Nesterov, Thomas Gleixner,
Aswin Chandramouleeswaran, Chegu Vinod, linux-kernel,
David Vrabel, Linus Torvalds
* Waiman Long <waiman.long@hp.com> wrote:
> On 04/04/2014 12:57 PM, Konrad Rzeszutek Wilk wrote:
> >On Fri, Apr 04, 2014 at 03:00:12PM +0200, Peter Zijlstra wrote:
> >>So I'm just not ever going to pick up this patch; I spend a week trying
> >>to reverse engineer this; I posted a 7 patch series creating the
> >>equivalent, but in a gradual and readable fashion:
> >>
> >> http://lkml.kernel.org/r/20140310154236.038181843@infradead.org
> >>
> >>You keep on ignoring that; I'll keep on ignoring your patches.
> >>
> >>I might at some point rewrite some of your pv stuff on top to get this
> >>moving again, but I'm not really motivated to work with you atm.
> >Uh? Did you CC also xen-devel@lists.xenproject.org on your patches Peter?
> >I hadn't had a chance to see or comment on them :-(
> >
>
> Peter's patch is a rewrite of my patches 1-4, there is no PV or
> unfair lock support in there.
It is a fine grained split-up, which does one thing at a time, so it
all becomes reviewable and mergable (and the claimed effects become
testable!). Please use that as a base.
Thanks,
Ingo
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation
2014-04-04 17:08 ` Waiman Long
(?)
@ 2014-04-04 17:54 ` Ingo Molnar
-1 siblings, 0 replies; 109+ messages in thread
From: Ingo Molnar @ 2014-04-04 17:54 UTC (permalink / raw)
To: Waiman Long
Cc: x86, Gleb Natapov, Peter Zijlstra, virtualization,
Marcos Matsunaga, H. Peter Anvin, linux-arch, kvm,
Raghavendra K T, Ingo Molnar, xen-devel, Paul E. McKenney,
Scott J Norton, Paolo Bonzini, Oleg Nesterov, Thomas Gleixner,
Aswin Chandramouleeswaran, Chegu Vinod, linux-kernel,
David Vrabel, Linus Torvalds
* Waiman Long <waiman.long@hp.com> wrote:
> On 04/04/2014 12:57 PM, Konrad Rzeszutek Wilk wrote:
> >On Fri, Apr 04, 2014 at 03:00:12PM +0200, Peter Zijlstra wrote:
> >>So I'm just not ever going to pick up this patch; I spend a week trying
> >>to reverse engineer this; I posted a 7 patch series creating the
> >>equivalent, but in a gradual and readable fashion:
> >>
> >> http://lkml.kernel.org/r/20140310154236.038181843@infradead.org
> >>
> >>You keep on ignoring that; I'll keep on ignoring your patches.
> >>
> >>I might at some point rewrite some of your pv stuff on top to get this
> >>moving again, but I'm not really motivated to work with you atm.
> >Uh? Did you CC also xen-devel@lists.xenproject.org on your patches Peter?
> >I hadn't had a chance to see or comment on them :-(
> >
>
> Peter's patch is a rewrite of my patches 1-4, there is no PV or
> unfair lock support in there.
It is a fine grained split-up, which does one thing at a time, so it
all becomes reviewable and mergable (and the claimed effects become
testable!). Please use that as a base.
Thanks,
Ingo
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
2014-04-04 17:13 ` Waiman Long
@ 2014-04-04 17:58 ` Konrad Rzeszutek Wilk
-1 siblings, 0 replies; 109+ messages in thread
From: Konrad Rzeszutek Wilk @ 2014-04-04 17:58 UTC (permalink / raw)
To: Waiman Long
Cc: Marcos Matsunaga, Thomas Gleixner, Ingo Molnar, H. Peter Anvin,
Peter Zijlstra, linux-arch, x86, linux-kernel, virtualization,
xen-devel, kvm, Paolo Bonzini, Paul E. McKenney, Rik van Riel,
Linus Torvalds, Raghavendra K T, David Vrabel, Oleg Nesterov,
Gleb Natapov, Aswin Chandramouleeswaran, Scott J Norton,
Chegu Vinod, boris.ostrovsky
On Fri, Apr 04, 2014 at 01:13:17PM -0400, Waiman Long wrote:
> On 04/04/2014 12:55 PM, Konrad Rzeszutek Wilk wrote:
> >On Thu, Apr 03, 2014 at 10:57:18PM -0400, Waiman Long wrote:
> >>On 04/03/2014 01:23 PM, Konrad Rzeszutek Wilk wrote:
> >>>On Wed, Apr 02, 2014 at 10:10:17PM -0400, Waiman Long wrote:
> >>>>On 04/02/2014 04:35 PM, Waiman Long wrote:
> >>>>>On 04/02/2014 10:32 AM, Konrad Rzeszutek Wilk wrote:
> >>>>>>On Wed, Apr 02, 2014 at 09:27:29AM -0400, Waiman Long wrote:
> >>>>>>>N.B. Sorry for the duplicate. This patch series were resent as the
> >>>>>>> original one was rejected by the vger.kernel.org list server
> >>>>>>> due to long header. There is no change in content.
> >>>>>>>
> >>>>>>>v7->v8:
> >>>>>>> - Remove one unneeded atomic operation from the slowpath, thus
> >>>>>>> improving performance.
> >>>>>>> - Simplify some of the codes and add more comments.
> >>>>>>> - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
> >>>>>>> unfair lock.
> >>>>>>> - Reduce unfair lock slowpath lock stealing frequency depending
> >>>>>>> on its distance from the queue head.
> >>>>>>> - Add performance data for IvyBridge-EX CPU.
> >>>>>>FYI, your v7 patch with 32 VCPUs (on a 32 cpu socket machine) on an
> >>>>>>HVM guest under Xen after a while stops working. The workload
> >>>>>>is doing 'make -j32' on the Linux kernel.
> >>>>>>
> >>>>>>Completely unresponsive. Thoughts?
> >>>>>>
> >>>>>Thank for reporting that. I haven't done that much testing on Xen.
> >>>>>My focus was in KVM. I will perform more test on Xen to see if I
> >>>>>can reproduce the problem.
> >>>>>
> >>>>BTW, does the halting and sending IPI mechanism work in HVM? I saw
> >>>Yes.
> >>>>that in RHEL7, PV spinlock was explicitly disabled when in HVM mode.
> >>>>However, this piece of code isn't in upstream code. So I wonder if
> >>>>there is problem with that.
> >>>The PV ticketlock fixed it for HVM. It was disabled before because
> >>>the PV guests were using bytelocks while the HVM were using ticketlocks
> >>>and you couldnt' swap in PV bytelocks for ticketlocks during startup.
> >>The RHEL7 code has used PV ticketlock already. RHEL7 uses a single
> >>kernel for all configurations. So PV ticketlock as well as Xen and
> >>KVM support was compiled in. I think booting the kernel on bare
> >>metal will cause the Xen code to work in HVM mode thus activating
> >>the PV spinlock code which has a negative impact on performance.
> >Huh? -EPARSE
> >
> >>That may be why it was disabled so that the bare metal performance
> >>will not be impacted.
> >I am not following you.
>
> What I am saying is that when XEN and PV spinlock is compiled into
> the current upstream kernel, the PV spinlock jump label is turned on
> when booted on bare metal. In other words, the PV spinlock code is
How does it turn it on? I see that the jump lables are only turned
on when the jump label is enable when it detects that it is running
under Xen or KVM. It won't turn it on under baremetal.
> active even when they are not needed and actually slow thing down in
> that situation. This is a problem and we need to find way to make
> sure that the PV spinlock code won't be activated on bare metal.
Could you explain to me which piece of code enables the jump labels
on baremetal please?
>
> -Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
@ 2014-04-04 17:58 ` Konrad Rzeszutek Wilk
0 siblings, 0 replies; 109+ messages in thread
From: Konrad Rzeszutek Wilk @ 2014-04-04 17:58 UTC (permalink / raw)
To: Waiman Long
Cc: x86, Gleb Natapov, Peter Zijlstra, virtualization,
Marcos Matsunaga, H. Peter Anvin, boris.ostrovsky, linux-arch,
kvm, Raghavendra K T, Ingo Molnar, xen-devel, Paul E. McKenney,
Rik van Riel, Scott J Norton, Paolo Bonzini, Oleg Nesterov,
Thomas Gleixner, Aswin Chandramouleeswaran, Chegu Vinod,
linux-kernel, David Vrabel, Linus Torvalds
On Fri, Apr 04, 2014 at 01:13:17PM -0400, Waiman Long wrote:
> On 04/04/2014 12:55 PM, Konrad Rzeszutek Wilk wrote:
> >On Thu, Apr 03, 2014 at 10:57:18PM -0400, Waiman Long wrote:
> >>On 04/03/2014 01:23 PM, Konrad Rzeszutek Wilk wrote:
> >>>On Wed, Apr 02, 2014 at 10:10:17PM -0400, Waiman Long wrote:
> >>>>On 04/02/2014 04:35 PM, Waiman Long wrote:
> >>>>>On 04/02/2014 10:32 AM, Konrad Rzeszutek Wilk wrote:
> >>>>>>On Wed, Apr 02, 2014 at 09:27:29AM -0400, Waiman Long wrote:
> >>>>>>>N.B. Sorry for the duplicate. This patch series were resent as the
> >>>>>>> original one was rejected by the vger.kernel.org list server
> >>>>>>> due to long header. There is no change in content.
> >>>>>>>
> >>>>>>>v7->v8:
> >>>>>>> - Remove one unneeded atomic operation from the slowpath, thus
> >>>>>>> improving performance.
> >>>>>>> - Simplify some of the codes and add more comments.
> >>>>>>> - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
> >>>>>>> unfair lock.
> >>>>>>> - Reduce unfair lock slowpath lock stealing frequency depending
> >>>>>>> on its distance from the queue head.
> >>>>>>> - Add performance data for IvyBridge-EX CPU.
> >>>>>>FYI, your v7 patch with 32 VCPUs (on a 32 cpu socket machine) on an
> >>>>>>HVM guest under Xen after a while stops working. The workload
> >>>>>>is doing 'make -j32' on the Linux kernel.
> >>>>>>
> >>>>>>Completely unresponsive. Thoughts?
> >>>>>>
> >>>>>Thank for reporting that. I haven't done that much testing on Xen.
> >>>>>My focus was in KVM. I will perform more test on Xen to see if I
> >>>>>can reproduce the problem.
> >>>>>
> >>>>BTW, does the halting and sending IPI mechanism work in HVM? I saw
> >>>Yes.
> >>>>that in RHEL7, PV spinlock was explicitly disabled when in HVM mode.
> >>>>However, this piece of code isn't in upstream code. So I wonder if
> >>>>there is problem with that.
> >>>The PV ticketlock fixed it for HVM. It was disabled before because
> >>>the PV guests were using bytelocks while the HVM were using ticketlocks
> >>>and you couldnt' swap in PV bytelocks for ticketlocks during startup.
> >>The RHEL7 code has used PV ticketlock already. RHEL7 uses a single
> >>kernel for all configurations. So PV ticketlock as well as Xen and
> >>KVM support was compiled in. I think booting the kernel on bare
> >>metal will cause the Xen code to work in HVM mode thus activating
> >>the PV spinlock code which has a negative impact on performance.
> >Huh? -EPARSE
> >
> >>That may be why it was disabled so that the bare metal performance
> >>will not be impacted.
> >I am not following you.
>
> What I am saying is that when XEN and PV spinlock is compiled into
> the current upstream kernel, the PV spinlock jump label is turned on
> when booted on bare metal. In other words, the PV spinlock code is
How does it turn it on? I see that the jump lables are only turned
on when the jump label is enable when it detects that it is running
under Xen or KVM. It won't turn it on under baremetal.
> active even when they are not needed and actually slow thing down in
> that situation. This is a problem and we need to find way to make
> sure that the PV spinlock code won't be activated on bare metal.
Could you explain to me which piece of code enables the jump labels
on baremetal please?
>
> -Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
2014-04-04 17:13 ` Waiman Long
(?)
@ 2014-04-04 17:58 ` Konrad Rzeszutek Wilk
-1 siblings, 0 replies; 109+ messages in thread
From: Konrad Rzeszutek Wilk @ 2014-04-04 17:58 UTC (permalink / raw)
To: Waiman Long
Cc: x86, Gleb Natapov, Peter Zijlstra, virtualization,
Marcos Matsunaga, H. Peter Anvin, boris.ostrovsky, linux-arch,
kvm, Raghavendra K T, Ingo Molnar, xen-devel, Paul E. McKenney,
Scott J Norton, Paolo Bonzini, Oleg Nesterov, Thomas Gleixner,
Aswin Chandramouleeswaran, Chegu Vinod, linux-kernel,
David Vrabel, Linus Torvalds
On Fri, Apr 04, 2014 at 01:13:17PM -0400, Waiman Long wrote:
> On 04/04/2014 12:55 PM, Konrad Rzeszutek Wilk wrote:
> >On Thu, Apr 03, 2014 at 10:57:18PM -0400, Waiman Long wrote:
> >>On 04/03/2014 01:23 PM, Konrad Rzeszutek Wilk wrote:
> >>>On Wed, Apr 02, 2014 at 10:10:17PM -0400, Waiman Long wrote:
> >>>>On 04/02/2014 04:35 PM, Waiman Long wrote:
> >>>>>On 04/02/2014 10:32 AM, Konrad Rzeszutek Wilk wrote:
> >>>>>>On Wed, Apr 02, 2014 at 09:27:29AM -0400, Waiman Long wrote:
> >>>>>>>N.B. Sorry for the duplicate. This patch series were resent as the
> >>>>>>> original one was rejected by the vger.kernel.org list server
> >>>>>>> due to long header. There is no change in content.
> >>>>>>>
> >>>>>>>v7->v8:
> >>>>>>> - Remove one unneeded atomic operation from the slowpath, thus
> >>>>>>> improving performance.
> >>>>>>> - Simplify some of the codes and add more comments.
> >>>>>>> - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
> >>>>>>> unfair lock.
> >>>>>>> - Reduce unfair lock slowpath lock stealing frequency depending
> >>>>>>> on its distance from the queue head.
> >>>>>>> - Add performance data for IvyBridge-EX CPU.
> >>>>>>FYI, your v7 patch with 32 VCPUs (on a 32 cpu socket machine) on an
> >>>>>>HVM guest under Xen after a while stops working. The workload
> >>>>>>is doing 'make -j32' on the Linux kernel.
> >>>>>>
> >>>>>>Completely unresponsive. Thoughts?
> >>>>>>
> >>>>>Thank for reporting that. I haven't done that much testing on Xen.
> >>>>>My focus was in KVM. I will perform more test on Xen to see if I
> >>>>>can reproduce the problem.
> >>>>>
> >>>>BTW, does the halting and sending IPI mechanism work in HVM? I saw
> >>>Yes.
> >>>>that in RHEL7, PV spinlock was explicitly disabled when in HVM mode.
> >>>>However, this piece of code isn't in upstream code. So I wonder if
> >>>>there is problem with that.
> >>>The PV ticketlock fixed it for HVM. It was disabled before because
> >>>the PV guests were using bytelocks while the HVM were using ticketlocks
> >>>and you couldnt' swap in PV bytelocks for ticketlocks during startup.
> >>The RHEL7 code has used PV ticketlock already. RHEL7 uses a single
> >>kernel for all configurations. So PV ticketlock as well as Xen and
> >>KVM support was compiled in. I think booting the kernel on bare
> >>metal will cause the Xen code to work in HVM mode thus activating
> >>the PV spinlock code which has a negative impact on performance.
> >Huh? -EPARSE
> >
> >>That may be why it was disabled so that the bare metal performance
> >>will not be impacted.
> >I am not following you.
>
> What I am saying is that when XEN and PV spinlock is compiled into
> the current upstream kernel, the PV spinlock jump label is turned on
> when booted on bare metal. In other words, the PV spinlock code is
How does it turn it on? I see that the jump lables are only turned
on when the jump label is enable when it detects that it is running
under Xen or KVM. It won't turn it on under baremetal.
> active even when they are not needed and actually slow thing down in
> that situation. This is a problem and we need to find way to make
> sure that the PV spinlock code won't be activated on bare metal.
Could you explain to me which piece of code enables the jump labels
on baremetal please?
>
> -Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
2014-04-04 16:55 ` Konrad Rzeszutek Wilk
` (6 preceding siblings ...)
(?)
@ 2014-04-04 18:14 ` Marcos E. Matsunaga
-1 siblings, 0 replies; 109+ messages in thread
From: Marcos E. Matsunaga @ 2014-04-04 18:14 UTC (permalink / raw)
To: Konrad Rzeszutek Wilk, Waiman Long
Cc: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, Peter Zijlstra,
linux-arch, x86, linux-kernel, virtualization, xen-devel, kvm,
Paolo Bonzini, Paul E. McKenney, Rik van Riel, Linus Torvalds,
Raghavendra K T, David Vrabel, Oleg Nesterov, Gleb Natapov,
Aswin Chandramouleeswaran, Scott J Norton, Chegu Vinod,
boris.ostrovsky
[-- Attachment #1: Type: text/plain, Size: 2931 bytes --]
Attached is the .config I used.
On 04/04/2014 12:55 PM, Konrad Rzeszutek Wilk wrote:
> On Thu, Apr 03, 2014 at 10:57:18PM -0400, Waiman Long wrote:
>> On 04/03/2014 01:23 PM, Konrad Rzeszutek Wilk wrote:
>>> On Wed, Apr 02, 2014 at 10:10:17PM -0400, Waiman Long wrote:
>>>> On 04/02/2014 04:35 PM, Waiman Long wrote:
>>>>> On 04/02/2014 10:32 AM, Konrad Rzeszutek Wilk wrote:
>>>>>> On Wed, Apr 02, 2014 at 09:27:29AM -0400, Waiman Long wrote:
>>>>>>> N.B. Sorry for the duplicate. This patch series were resent as the
>>>>>>> original one was rejected by the vger.kernel.org list server
>>>>>>> due to long header. There is no change in content.
>>>>>>>
>>>>>>> v7->v8:
>>>>>>> - Remove one unneeded atomic operation from the slowpath, thus
>>>>>>> improving performance.
>>>>>>> - Simplify some of the codes and add more comments.
>>>>>>> - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
>>>>>>> unfair lock.
>>>>>>> - Reduce unfair lock slowpath lock stealing frequency depending
>>>>>>> on its distance from the queue head.
>>>>>>> - Add performance data for IvyBridge-EX CPU.
>>>>>> FYI, your v7 patch with 32 VCPUs (on a 32 cpu socket machine) on an
>>>>>> HVM guest under Xen after a while stops working. The workload
>>>>>> is doing 'make -j32' on the Linux kernel.
>>>>>>
>>>>>> Completely unresponsive. Thoughts?
>>>>>>
>>>>> Thank for reporting that. I haven't done that much testing on Xen.
>>>>> My focus was in KVM. I will perform more test on Xen to see if I
>>>>> can reproduce the problem.
>>>>>
>>>> BTW, does the halting and sending IPI mechanism work in HVM? I saw
>>> Yes.
>>>> that in RHEL7, PV spinlock was explicitly disabled when in HVM mode.
>>>> However, this piece of code isn't in upstream code. So I wonder if
>>>> there is problem with that.
>>> The PV ticketlock fixed it for HVM. It was disabled before because
>>> the PV guests were using bytelocks while the HVM were using ticketlocks
>>> and you couldnt' swap in PV bytelocks for ticketlocks during startup.
>> The RHEL7 code has used PV ticketlock already. RHEL7 uses a single
>> kernel for all configurations. So PV ticketlock as well as Xen and
>> KVM support was compiled in. I think booting the kernel on bare
>> metal will cause the Xen code to work in HVM mode thus activating
>> the PV spinlock code which has a negative impact on performance.
> Huh? -EPARSE
>
>> That may be why it was disabled so that the bare metal performance
>> will not be impacted.
> I am not following you.
>> BTW, could you send me more information about the configuration of
>> the machine, like the .config file that you used?
> Marcos, could you please send that information to Peter. Thanks!
>> -Longman
--
Regards,
Marcos Eduardo Matsunaga
Oracle USA
Linux Engineering
“The statements and opinions expressed here are my own and do not
necessarily represent those of Oracle Corporation.”
[-- Attachment #2: config-3.14.0-qspinlockV8+ --]
[-- Type: text/plain, Size: 125953 bytes --]
#
# Automatically generated file; DO NOT EDIT.
# Linux/x86 3.14.0 Kernel Configuration
#
CONFIG_64BIT=y
CONFIG_X86_64=y
CONFIG_X86=y
CONFIG_INSTRUCTION_DECODER=y
CONFIG_OUTPUT_FORMAT="elf64-x86-64"
CONFIG_ARCH_DEFCONFIG="arch/x86/configs/x86_64_defconfig"
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_MMU=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_ARCH_HAS_CPU_RELAX=y
CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
CONFIG_ARCH_HAS_CPU_AUTOPROBE=y
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y
CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
CONFIG_ZONE_DMA32=y
CONFIG_AUDIT_ARCH=y
CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING=y
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
CONFIG_X86_64_SMP=y
CONFIG_X86_HT=y
CONFIG_ARCH_HWEIGHT_CFLAGS="-fcall-saved-rdi -fcall-saved-rsi -fcall-saved-rdx -fcall-saved-rcx -fcall-saved-r8 -fcall-saved-r9 -fcall-saved-r10 -fcall-saved-r11"
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_EXTABLE_SORT=y
#
# General setup
#
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_CROSS_COMPILE=""
# CONFIG_COMPILE_TEST is not set
CONFIG_LOCALVERSION="-qspinlockV8"
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_BZIP2=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_HAVE_KERNEL_XZ=y
CONFIG_HAVE_KERNEL_LZO=y
CONFIG_HAVE_KERNEL_LZ4=y
CONFIG_KERNEL_GZIP=y
# CONFIG_KERNEL_BZIP2 is not set
# CONFIG_KERNEL_LZMA is not set
# CONFIG_KERNEL_XZ is not set
# CONFIG_KERNEL_LZO is not set
# CONFIG_KERNEL_LZ4 is not set
CONFIG_DEFAULT_HOSTNAME="(none)"
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
CONFIG_FHANDLE=y
CONFIG_AUDIT=y
CONFIG_AUDITSYSCALL=y
CONFIG_AUDIT_WATCH=y
CONFIG_AUDIT_TREE=y
#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_PENDING_IRQ=y
CONFIG_IRQ_DOMAIN=y
# CONFIG_IRQ_DOMAIN_DEBUG is not set
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_SPARSE_IRQ=y
CONFIG_CLOCKSOURCE_WATCHDOG=y
CONFIG_ARCH_CLOCKSOURCE_DATA=y
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST=y
CONFIG_GENERIC_CMOS_UPDATE=y
#
# Timers subsystem
#
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ_COMMON=y
# CONFIG_HZ_PERIODIC is not set
CONFIG_NO_HZ_IDLE=y
# CONFIG_NO_HZ_FULL is not set
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
#
# CPU/Task time and stats accounting
#
CONFIG_TICK_CPU_ACCOUNTING=y
# CONFIG_VIRT_CPU_ACCOUNTING_GEN is not set
# CONFIG_IRQ_TIME_ACCOUNTING is not set
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_TASKSTATS=y
CONFIG_TASK_DELAY_ACCT=y
CONFIG_TASK_XACCT=y
CONFIG_TASK_IO_ACCOUNTING=y
#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
# CONFIG_PREEMPT_RCU is not set
CONFIG_RCU_STALL_COMMON=y
# CONFIG_RCU_USER_QS is not set
CONFIG_RCU_FANOUT=64
CONFIG_RCU_FANOUT_LEAF=16
# CONFIG_RCU_FANOUT_EXACT is not set
# CONFIG_RCU_FAST_NO_HZ is not set
# CONFIG_TREE_RCU_TRACE is not set
# CONFIG_RCU_NOCB_CPU is not set
# CONFIG_IKCONFIG is not set
CONFIG_LOG_BUF_SHIFT=20
CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y
CONFIG_ARCH_SUPPORTS_NUMA_BALANCING=y
CONFIG_ARCH_SUPPORTS_INT128=y
CONFIG_ARCH_WANTS_PROT_NUMA_PROT_NONE=y
# CONFIG_NUMA_BALANCING is not set
CONFIG_CGROUPS=y
# CONFIG_CGROUP_DEBUG is not set
CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CPUSETS=y
CONFIG_PROC_PID_CPUSET=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_RESOURCE_COUNTERS=y
# CONFIG_MEMCG is not set
# CONFIG_CGROUP_HUGETLB is not set
# CONFIG_CGROUP_PERF is not set
CONFIG_CGROUP_SCHED=y
CONFIG_FAIR_GROUP_SCHED=y
# CONFIG_CFS_BANDWIDTH is not set
CONFIG_RT_GROUP_SCHED=y
CONFIG_BLK_CGROUP=y
# CONFIG_DEBUG_BLK_CGROUP is not set
# CONFIG_CHECKPOINT_RESTORE is not set
CONFIG_NAMESPACES=y
CONFIG_UTS_NS=y
CONFIG_IPC_NS=y
# CONFIG_USER_NS is not set
CONFIG_PID_NS=y
CONFIG_NET_NS=y
# CONFIG_SCHED_AUTOGROUP is not set
# CONFIG_SYSFS_DEPRECATED is not set
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_RD_XZ=y
CONFIG_RD_LZO=y
CONFIG_RD_LZ4=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
CONFIG_HAVE_UID16=y
CONFIG_SYSCTL_EXCEPTION_TRACE=y
CONFIG_HAVE_PCSPKR_PLATFORM=y
# CONFIG_EXPERT is not set
CONFIG_UID16=y
# CONFIG_SYSCTL_SYSCALL is not set
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_PCSPKR_PLATFORM=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_PCI_QUIRKS=y
# CONFIG_EMBEDDED is not set
CONFIG_HAVE_PERF_EVENTS=y
#
# Kernel Performance Events And Counters
#
CONFIG_PERF_EVENTS=y
# CONFIG_DEBUG_PERF_USE_VMALLOC is not set
CONFIG_VM_EVENT_COUNTERS=y
# CONFIG_COMPAT_BRK is not set
CONFIG_SLAB=y
# CONFIG_SLUB is not set
CONFIG_PROFILING=y
CONFIG_TRACEPOINTS=y
CONFIG_OPROFILE=m
# CONFIG_OPROFILE_EVENT_MULTIPLEX is not set
CONFIG_HAVE_OPROFILE=y
CONFIG_OPROFILE_NMI_TIMER=y
CONFIG_KPROBES=y
# CONFIG_JUMP_LABEL is not set
CONFIG_OPTPROBES=y
CONFIG_KPROBES_ON_FTRACE=y
# CONFIG_HAVE_64BIT_ALIGNED_ACCESS is not set
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
CONFIG_ARCH_USE_BUILTIN_BSWAP=y
CONFIG_KRETPROBES=y
CONFIG_USER_RETURN_NOTIFIER=y
CONFIG_HAVE_IOREMAP_PROT=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_OPTPROBES=y
CONFIG_HAVE_KPROBES_ON_FTRACE=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_DMA_ATTRS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_DMA_API_DEBUG=y
CONFIG_HAVE_HW_BREAKPOINT=y
CONFIG_HAVE_MIXED_BREAKPOINTS_REGS=y
CONFIG_HAVE_USER_RETURN_NOTIFIER=y
CONFIG_HAVE_PERF_EVENTS_NMI=y
CONFIG_HAVE_PERF_REGS=y
CONFIG_HAVE_PERF_USER_STACK_DUMP=y
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_HAVE_CMPXCHG_LOCAL=y
CONFIG_HAVE_CMPXCHG_DOUBLE=y
CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION=y
CONFIG_ARCH_WANT_OLD_COMPAT_IPC=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
CONFIG_SECCOMP_FILTER=y
CONFIG_HAVE_CC_STACKPROTECTOR=y
# CONFIG_CC_STACKPROTECTOR is not set
CONFIG_CC_STACKPROTECTOR_NONE=y
# CONFIG_CC_STACKPROTECTOR_REGULAR is not set
# CONFIG_CC_STACKPROTECTOR_STRONG is not set
CONFIG_HAVE_CONTEXT_TRACKING=y
CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
CONFIG_HAVE_ARCH_SOFT_DIRTY=y
CONFIG_MODULES_USE_ELF_RELA=y
CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y
CONFIG_OLD_SIGSUSPEND3=y
CONFIG_COMPAT_OLD_SIGACTION=y
#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_SYSTEM_TRUSTED_KEYRING=y
CONFIG_MODULES=y
CONFIG_MODULE_FORCE_LOAD=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_MODULE_FORCE_UNLOAD is not set
CONFIG_MODVERSIONS=y
CONFIG_MODULE_SRCVERSION_ALL=y
CONFIG_MODULE_SIG=y
# CONFIG_MODULE_SIG_FORCE is not set
CONFIG_MODULE_SIG_ALL=y
CONFIG_MODULE_SIG_SHA1=y
# CONFIG_MODULE_SIG_SHA224 is not set
# CONFIG_MODULE_SIG_SHA256 is not set
# CONFIG_MODULE_SIG_SHA384 is not set
# CONFIG_MODULE_SIG_SHA512 is not set
CONFIG_MODULE_SIG_HASH="sha1"
CONFIG_STOP_MACHINE=y
CONFIG_BLOCK=y
CONFIG_BLK_DEV_BSG=y
CONFIG_BLK_DEV_BSGLIB=y
CONFIG_BLK_DEV_INTEGRITY=y
CONFIG_BLK_DEV_THROTTLING=y
# CONFIG_BLK_CMDLINE_PARSER is not set
#
# Partition Types
#
CONFIG_PARTITION_ADVANCED=y
# CONFIG_ACORN_PARTITION is not set
# CONFIG_AIX_PARTITION is not set
CONFIG_OSF_PARTITION=y
CONFIG_AMIGA_PARTITION=y
# CONFIG_ATARI_PARTITION is not set
CONFIG_MAC_PARTITION=y
CONFIG_MSDOS_PARTITION=y
CONFIG_BSD_DISKLABEL=y
CONFIG_MINIX_SUBPARTITION=y
CONFIG_SOLARIS_X86_PARTITION=y
CONFIG_UNIXWARE_DISKLABEL=y
# CONFIG_LDM_PARTITION is not set
CONFIG_SGI_PARTITION=y
# CONFIG_ULTRIX_PARTITION is not set
CONFIG_SUN_PARTITION=y
CONFIG_KARMA_PARTITION=y
CONFIG_EFI_PARTITION=y
# CONFIG_SYSV68_PARTITION is not set
# CONFIG_CMDLINE_PARTITION is not set
CONFIG_BLOCK_COMPAT=y
#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
CONFIG_CFQ_GROUP_IOSCHED=y
CONFIG_DEFAULT_DEADLINE=y
# CONFIG_DEFAULT_CFQ is not set
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="deadline"
CONFIG_PREEMPT_NOTIFIERS=y
CONFIG_ASN1=y
CONFIG_UNINLINE_SPIN_UNLOCK=y
CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
CONFIG_INLINE_READ_UNLOCK=y
CONFIG_INLINE_READ_UNLOCK_IRQ=y
CONFIG_INLINE_WRITE_UNLOCK=y
CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
CONFIG_MUTEX_SPIN_ON_OWNER=y
CONFIG_ARCH_USE_QUEUE_SPINLOCK=y
CONFIG_QUEUE_SPINLOCK=y
CONFIG_FREEZER=y
#
# Processor type and features
#
CONFIG_ZONE_DMA=y
CONFIG_SMP=y
CONFIG_X86_MPPARSE=y
CONFIG_X86_EXTENDED_PLATFORM=y
# CONFIG_X86_VSMP is not set
# CONFIG_X86_INTEL_LPSS is not set
CONFIG_X86_SUPPORTS_MEMORY_FAILURE=y
CONFIG_SCHED_OMIT_FRAME_POINTER=y
CONFIG_HYPERVISOR_GUEST=y
CONFIG_PARAVIRT=y
# CONFIG_PARAVIRT_DEBUG is not set
CONFIG_PARAVIRT_SPINLOCKS=y
CONFIG_PARAVIRT_UNFAIR_LOCKS=y
CONFIG_XEN=y
CONFIG_XEN_DOM0=y
CONFIG_XEN_PRIVILEGED_GUEST=y
CONFIG_XEN_PVHVM=y
CONFIG_XEN_MAX_DOMAIN_MEMORY=500
CONFIG_XEN_SAVE_RESTORE=y
# CONFIG_XEN_DEBUG_FS is not set
# CONFIG_XEN_PVH is not set
CONFIG_KVM_GUEST=y
# CONFIG_KVM_DEBUG_FS is not set
# CONFIG_PARAVIRT_TIME_ACCOUNTING is not set
CONFIG_PARAVIRT_CLOCK=y
CONFIG_NO_BOOTMEM=y
# CONFIG_MEMTEST is not set
# CONFIG_MK8 is not set
# CONFIG_MPSC is not set
# CONFIG_MCORE2 is not set
# CONFIG_MATOM is not set
CONFIG_GENERIC_CPU=y
CONFIG_X86_INTERNODE_CACHE_SHIFT=6
CONFIG_X86_L1_CACHE_SHIFT=6
CONFIG_X86_TSC=y
CONFIG_X86_CMPXCHG64=y
CONFIG_X86_CMOV=y
CONFIG_X86_MINIMUM_CPU_FAMILY=64
CONFIG_X86_DEBUGCTLMSR=y
CONFIG_CPU_SUP_INTEL=y
CONFIG_CPU_SUP_AMD=y
CONFIG_CPU_SUP_CENTAUR=y
CONFIG_HPET_TIMER=y
CONFIG_HPET_EMULATE_RTC=y
CONFIG_DMI=y
CONFIG_GART_IOMMU=y
CONFIG_CALGARY_IOMMU=y
CONFIG_CALGARY_IOMMU_ENABLED_BY_DEFAULT=y
CONFIG_SWIOTLB=y
CONFIG_IOMMU_HELPER=y
CONFIG_MAXSMP=y
CONFIG_NR_CPUS=8192
CONFIG_SCHED_SMT=y
CONFIG_SCHED_MC=y
# CONFIG_PREEMPT_NONE is not set
CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_PREEMPT is not set
CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y
CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS=y
CONFIG_X86_MCE=y
CONFIG_X86_MCE_INTEL=y
CONFIG_X86_MCE_AMD=y
CONFIG_X86_MCE_THRESHOLD=y
CONFIG_X86_MCE_INJECT=m
CONFIG_X86_THERMAL_VECTOR=y
CONFIG_I8K=m
CONFIG_MICROCODE=m
CONFIG_MICROCODE_INTEL=y
CONFIG_MICROCODE_AMD=y
CONFIG_MICROCODE_OLD_INTERFACE=y
# CONFIG_MICROCODE_INTEL_EARLY is not set
# CONFIG_MICROCODE_AMD_EARLY is not set
CONFIG_X86_MSR=y
CONFIG_X86_CPUID=y
CONFIG_ARCH_PHYS_ADDR_T_64BIT=y
CONFIG_ARCH_DMA_ADDR_T_64BIT=y
CONFIG_DIRECT_GBPAGES=y
CONFIG_NUMA=y
CONFIG_AMD_NUMA=y
CONFIG_X86_64_ACPI_NUMA=y
CONFIG_NODES_SPAN_OTHER_NODES=y
# CONFIG_NUMA_EMU is not set
CONFIG_NODES_SHIFT=10
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_DEFAULT=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_MEMORY_PROBE=y
CONFIG_ARCH_PROC_KCORE_TEXT=y
CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_SPARSEMEM_MANUAL=y
CONFIG_SPARSEMEM=y
CONFIG_NEED_MULTIPLE_NODES=y
CONFIG_HAVE_MEMORY_PRESENT=y
CONFIG_SPARSEMEM_EXTREME=y
CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
CONFIG_SPARSEMEM_ALLOC_MEM_MAP_TOGETHER=y
CONFIG_SPARSEMEM_VMEMMAP=y
CONFIG_HAVE_MEMBLOCK=y
CONFIG_HAVE_MEMBLOCK_NODE_MAP=y
CONFIG_ARCH_DISCARD_MEMBLOCK=y
CONFIG_MEMORY_ISOLATION=y
# CONFIG_MOVABLE_NODE is not set
# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
CONFIG_MEMORY_HOTPLUG=y
CONFIG_MEMORY_HOTPLUG_SPARSE=y
# CONFIG_MEMORY_HOTREMOVE is not set
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK=y
CONFIG_BALLOON_COMPACTION=y
CONFIG_COMPACTION=y
CONFIG_MIGRATION=y
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_ZONE_DMA_FLAG=1
CONFIG_BOUNCE=y
CONFIG_NEED_BOUNCE_POOL=y
CONFIG_VIRT_TO_BUS=y
CONFIG_MMU_NOTIFIER=y
CONFIG_KSM=y
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_ARCH_SUPPORTS_MEMORY_FAILURE=y
CONFIG_MEMORY_FAILURE=y
CONFIG_HWPOISON_INJECT=m
CONFIG_TRANSPARENT_HUGEPAGE=y
CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS=y
# CONFIG_TRANSPARENT_HUGEPAGE_MADVISE is not set
CONFIG_CROSS_MEMORY_ATTACH=y
CONFIG_CLEANCACHE=y
CONFIG_FRONTSWAP=y
# CONFIG_CMA is not set
# CONFIG_ZBUD is not set
# CONFIG_ZSWAP is not set
# CONFIG_ZSMALLOC is not set
# CONFIG_X86_CHECK_BIOS_CORRUPTION is not set
CONFIG_X86_RESERVE_LOW=64
CONFIG_MTRR=y
CONFIG_MTRR_SANITIZER=y
CONFIG_MTRR_SANITIZER_ENABLE_DEFAULT=1
CONFIG_MTRR_SANITIZER_SPARE_REG_NR_DEFAULT=1
CONFIG_X86_PAT=y
CONFIG_ARCH_USES_PG_UNCACHED=y
CONFIG_ARCH_RANDOM=y
CONFIG_X86_SMAP=y
CONFIG_EFI=y
# CONFIG_EFI_STUB is not set
CONFIG_SECCOMP=y
# CONFIG_HZ_100 is not set
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
CONFIG_HZ_1000=y
CONFIG_HZ=1000
CONFIG_SCHED_HRTICK=y
CONFIG_KEXEC=y
CONFIG_CRASH_DUMP=y
CONFIG_KEXEC_JUMP=y
CONFIG_PHYSICAL_START=0x1000000
CONFIG_RELOCATABLE=y
CONFIG_PHYSICAL_ALIGN=0x1000000
CONFIG_HOTPLUG_CPU=y
# CONFIG_BOOTPARAM_HOTPLUG_CPU0 is not set
# CONFIG_DEBUG_HOTPLUG_CPU0 is not set
# CONFIG_COMPAT_VDSO is not set
# CONFIG_CMDLINE_BOOL is not set
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y
CONFIG_USE_PERCPU_NUMA_NODE_ID=y
#
# Power management and ACPI options
#
CONFIG_ARCH_HIBERNATION_HEADER=y
CONFIG_SUSPEND=y
CONFIG_SUSPEND_FREEZER=y
CONFIG_HIBERNATE_CALLBACKS=y
CONFIG_HIBERNATION=y
CONFIG_PM_STD_PARTITION=""
CONFIG_PM_SLEEP=y
CONFIG_PM_SLEEP_SMP=y
# CONFIG_PM_AUTOSLEEP is not set
# CONFIG_PM_WAKELOCKS is not set
CONFIG_PM_RUNTIME=y
CONFIG_PM=y
# CONFIG_PM_DEBUG is not set
# CONFIG_WQ_POWER_EFFICIENT_DEFAULT is not set
CONFIG_ACPI=y
CONFIG_ACPI_SLEEP=y
CONFIG_ACPI_PROCFS=y
# CONFIG_ACPI_EC_DEBUGFS is not set
CONFIG_ACPI_AC=y
CONFIG_ACPI_BATTERY=y
CONFIG_ACPI_BUTTON=y
CONFIG_ACPI_VIDEO=m
CONFIG_ACPI_FAN=y
CONFIG_ACPI_DOCK=y
CONFIG_ACPI_PROCESSOR=y
CONFIG_ACPI_IPMI=m
CONFIG_ACPI_HOTPLUG_CPU=y
CONFIG_ACPI_PROCESSOR_AGGREGATOR=m
CONFIG_ACPI_THERMAL=y
CONFIG_ACPI_NUMA=y
# CONFIG_ACPI_CUSTOM_DSDT is not set
# CONFIG_ACPI_INITRD_TABLE_OVERRIDE is not set
# CONFIG_ACPI_DEBUG is not set
CONFIG_ACPI_PCI_SLOT=y
CONFIG_X86_PM_TIMER=y
CONFIG_ACPI_CONTAINER=y
# CONFIG_ACPI_HOTPLUG_MEMORY is not set
CONFIG_ACPI_SBS=m
CONFIG_ACPI_HED=m
# CONFIG_ACPI_CUSTOM_METHOD is not set
# CONFIG_ACPI_BGRT is not set
CONFIG_ACPI_APEI=y
# CONFIG_ACPI_APEI_GHES is not set
# CONFIG_ACPI_APEI_PCIEAER is not set
# CONFIG_ACPI_APEI_MEMORY_FAILURE is not set
CONFIG_ACPI_APEI_EINJ=m
CONFIG_ACPI_APEI_ERST_DEBUG=m
# CONFIG_ACPI_EXTLOG is not set
CONFIG_SFI=y
#
# CPU Frequency scaling
#
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_GOV_COMMON=y
CONFIG_CPU_FREQ_STAT=m
CONFIG_CPU_FREQ_STAT_DETAILS=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=m
CONFIG_CPU_FREQ_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_ONDEMAND=m
CONFIG_CPU_FREQ_GOV_CONSERVATIVE=m
#
# x86 CPU frequency scaling drivers
#
# CONFIG_X86_INTEL_PSTATE is not set
CONFIG_X86_PCC_CPUFREQ=m
CONFIG_X86_ACPI_CPUFREQ=m
CONFIG_X86_ACPI_CPUFREQ_CPB=y
CONFIG_X86_POWERNOW_K8=m
# CONFIG_X86_AMD_FREQ_SENSITIVITY is not set
# CONFIG_X86_SPEEDSTEP_CENTRINO is not set
CONFIG_X86_P4_CLOCKMOD=m
#
# shared options
#
CONFIG_X86_SPEEDSTEP_LIB=m
#
# CPU Idle
#
CONFIG_CPU_IDLE=y
# CONFIG_CPU_IDLE_MULTIPLE_DRIVERS is not set
CONFIG_CPU_IDLE_GOV_LADDER=y
CONFIG_CPU_IDLE_GOV_MENU=y
# CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED is not set
CONFIG_INTEL_IDLE=y
#
# Memory power savings
#
CONFIG_I7300_IDLE_IOAT_CHANNEL=y
CONFIG_I7300_IDLE=m
#
# Bus options (PCI etc.)
#
CONFIG_PCI=y
CONFIG_PCI_DIRECT=y
CONFIG_PCI_MMCONFIG=y
CONFIG_PCI_XEN=y
CONFIG_PCI_DOMAINS=y
CONFIG_PCIEPORTBUS=y
CONFIG_HOTPLUG_PCI_PCIE=y
CONFIG_PCIEAER=y
CONFIG_PCIE_ECRC=y
CONFIG_PCIEAER_INJECT=m
CONFIG_PCIEASPM=y
# CONFIG_PCIEASPM_DEBUG is not set
CONFIG_PCIEASPM_DEFAULT=y
# CONFIG_PCIEASPM_POWERSAVE is not set
# CONFIG_PCIEASPM_PERFORMANCE is not set
CONFIG_PCIE_PME=y
CONFIG_PCI_MSI=y
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_REALLOC_ENABLE_AUTO is not set
CONFIG_PCI_STUB=y
CONFIG_XEN_PCIDEV_FRONTEND=y
CONFIG_HT_IRQ=y
CONFIG_PCI_ATS=y
CONFIG_PCI_IOV=y
CONFIG_PCI_PRI=y
CONFIG_PCI_PASID=y
CONFIG_PCI_IOAPIC=y
CONFIG_PCI_LABEL=y
#
# PCI host controller drivers
#
CONFIG_ISA_DMA_API=y
CONFIG_AMD_NB=y
CONFIG_PCCARD=y
CONFIG_PCMCIA=y
CONFIG_PCMCIA_LOAD_CIS=y
CONFIG_CARDBUS=y
#
# PC-card bridges
#
CONFIG_YENTA=m
CONFIG_YENTA_O2=y
CONFIG_YENTA_RICOH=y
CONFIG_YENTA_TI=y
CONFIG_YENTA_ENE_TUNE=y
CONFIG_YENTA_TOSHIBA=y
CONFIG_PD6729=m
# CONFIG_I82092 is not set
CONFIG_PCCARD_NONSTATIC=y
CONFIG_HOTPLUG_PCI=y
CONFIG_HOTPLUG_PCI_ACPI=y
CONFIG_HOTPLUG_PCI_ACPI_IBM=m
# CONFIG_HOTPLUG_PCI_CPCI is not set
CONFIG_HOTPLUG_PCI_SHPC=m
CONFIG_RAPIDIO=y
# CONFIG_RAPIDIO_TSI721 is not set
CONFIG_RAPIDIO_DISC_TIMEOUT=30
# CONFIG_RAPIDIO_ENABLE_RX_TX_PORTS is not set
# CONFIG_RAPIDIO_DMA_ENGINE is not set
# CONFIG_RAPIDIO_DEBUG is not set
# CONFIG_RAPIDIO_ENUM_BASIC is not set
#
# RapidIO Switch drivers
#
# CONFIG_RAPIDIO_TSI57X is not set
# CONFIG_RAPIDIO_CPS_XX is not set
# CONFIG_RAPIDIO_TSI568 is not set
# CONFIG_RAPIDIO_CPS_GEN2 is not set
# CONFIG_X86_SYSFB is not set
#
# Executable file formats / Emulations
#
CONFIG_BINFMT_ELF=y
CONFIG_COMPAT_BINFMT_ELF=y
CONFIG_ARCH_BINFMT_ELF_RANDOMIZE_PIE=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_BINFMT_SCRIPT=y
# CONFIG_HAVE_AOUT is not set
CONFIG_BINFMT_MISC=y
CONFIG_COREDUMP=y
CONFIG_IA32_EMULATION=y
# CONFIG_IA32_AOUT is not set
# CONFIG_X86_X32 is not set
CONFIG_COMPAT=y
CONFIG_COMPAT_FOR_U64_ALIGNMENT=y
CONFIG_SYSVIPC_COMPAT=y
CONFIG_KEYS_COMPAT=y
CONFIG_X86_DEV_DMA_OPS=y
CONFIG_NET=y
CONFIG_COMPAT_NETLINK_MESSAGES=y
#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_DIAG is not set
CONFIG_UNIX=y
# CONFIG_UNIX_DIAG is not set
CONFIG_XFRM=y
CONFIG_XFRM_ALGO=y
CONFIG_XFRM_USER=y
CONFIG_XFRM_SUB_POLICY=y
CONFIG_XFRM_MIGRATE=y
CONFIG_XFRM_STATISTICS=y
CONFIG_XFRM_IPCOMP=m
CONFIG_NET_KEY=m
CONFIG_NET_KEY_MIGRATE=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_ADVANCED_ROUTER=y
# CONFIG_IP_FIB_TRIE_STATS is not set
CONFIG_IP_MULTIPLE_TABLES=y
CONFIG_IP_ROUTE_MULTIPATH=y
CONFIG_IP_ROUTE_VERBOSE=y
CONFIG_IP_ROUTE_CLASSID=y
CONFIG_IP_PNP=y
# CONFIG_IP_PNP_DHCP is not set
# CONFIG_IP_PNP_BOOTP is not set
# CONFIG_IP_PNP_RARP is not set
CONFIG_NET_IPIP=m
CONFIG_NET_IPGRE_DEMUX=m
CONFIG_NET_IP_TUNNEL=m
CONFIG_NET_IPGRE=m
CONFIG_NET_IPGRE_BROADCAST=y
CONFIG_IP_MROUTE=y
CONFIG_IP_MROUTE_MULTIPLE_TABLES=y
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
CONFIG_SYN_COOKIES=y
# CONFIG_NET_IPVTI is not set
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_IPCOMP=m
CONFIG_INET_XFRM_TUNNEL=m
CONFIG_INET_TUNNEL=m
CONFIG_INET_XFRM_MODE_TRANSPORT=m
CONFIG_INET_XFRM_MODE_TUNNEL=m
CONFIG_INET_XFRM_MODE_BEET=m
CONFIG_INET_LRO=y
CONFIG_INET_DIAG=m
CONFIG_INET_TCP_DIAG=m
# CONFIG_INET_UDP_DIAG is not set
CONFIG_TCP_CONG_ADVANCED=y
CONFIG_TCP_CONG_BIC=m
CONFIG_TCP_CONG_CUBIC=y
CONFIG_TCP_CONG_WESTWOOD=m
CONFIG_TCP_CONG_HTCP=m
CONFIG_TCP_CONG_HSTCP=m
CONFIG_TCP_CONG_HYBLA=m
CONFIG_TCP_CONG_VEGAS=m
CONFIG_TCP_CONG_SCALABLE=m
CONFIG_TCP_CONG_LP=m
CONFIG_TCP_CONG_VENO=m
CONFIG_TCP_CONG_YEAH=m
CONFIG_TCP_CONG_ILLINOIS=m
CONFIG_DEFAULT_CUBIC=y
# CONFIG_DEFAULT_RENO is not set
CONFIG_DEFAULT_TCP_CONG="cubic"
CONFIG_TCP_MD5SIG=y
CONFIG_IPV6=y
CONFIG_IPV6_ROUTER_PREF=y
CONFIG_IPV6_ROUTE_INFO=y
CONFIG_IPV6_OPTIMISTIC_DAD=y
CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
CONFIG_INET6_IPCOMP=m
CONFIG_IPV6_MIP6=m
CONFIG_INET6_XFRM_TUNNEL=m
CONFIG_INET6_TUNNEL=m
CONFIG_INET6_XFRM_MODE_TRANSPORT=m
CONFIG_INET6_XFRM_MODE_TUNNEL=m
CONFIG_INET6_XFRM_MODE_BEET=m
CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION=m
# CONFIG_IPV6_VTI is not set
CONFIG_IPV6_SIT=m
# CONFIG_IPV6_SIT_6RD is not set
CONFIG_IPV6_NDISC_NODETYPE=y
CONFIG_IPV6_TUNNEL=m
# CONFIG_IPV6_GRE is not set
CONFIG_IPV6_MULTIPLE_TABLES=y
# CONFIG_IPV6_SUBTREES is not set
CONFIG_IPV6_MROUTE=y
CONFIG_IPV6_MROUTE_MULTIPLE_TABLES=y
CONFIG_IPV6_PIMSM_V2=y
CONFIG_NETLABEL=y
CONFIG_NETWORK_SECMARK=y
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set
CONFIG_NETFILTER_ADVANCED=y
CONFIG_BRIDGE_NETFILTER=y
#
# Core Netfilter Configuration
#
CONFIG_NETFILTER_NETLINK=m
# CONFIG_NETFILTER_NETLINK_ACCT is not set
CONFIG_NETFILTER_NETLINK_QUEUE=m
CONFIG_NETFILTER_NETLINK_LOG=m
CONFIG_NF_CONNTRACK=m
CONFIG_NF_CONNTRACK_MARK=y
CONFIG_NF_CONNTRACK_SECMARK=y
# CONFIG_NF_CONNTRACK_ZONES is not set
CONFIG_NF_CONNTRACK_PROCFS=y
CONFIG_NF_CONNTRACK_EVENTS=y
# CONFIG_NF_CONNTRACK_TIMEOUT is not set
# CONFIG_NF_CONNTRACK_TIMESTAMP is not set
CONFIG_NF_CT_PROTO_DCCP=m
CONFIG_NF_CT_PROTO_GRE=m
CONFIG_NF_CT_PROTO_SCTP=m
CONFIG_NF_CT_PROTO_UDPLITE=m
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
CONFIG_NF_CONNTRACK_H323=m
CONFIG_NF_CONNTRACK_IRC=m
CONFIG_NF_CONNTRACK_BROADCAST=m
CONFIG_NF_CONNTRACK_NETBIOS_NS=m
CONFIG_NF_CONNTRACK_SNMP=m
CONFIG_NF_CONNTRACK_PPTP=m
CONFIG_NF_CONNTRACK_SANE=m
CONFIG_NF_CONNTRACK_SIP=m
CONFIG_NF_CONNTRACK_TFTP=m
CONFIG_NF_CT_NETLINK=m
# CONFIG_NF_CT_NETLINK_TIMEOUT is not set
# CONFIG_NETFILTER_NETLINK_QUEUE_CT is not set
# CONFIG_NF_TABLES is not set
CONFIG_NETFILTER_XTABLES=y
#
# Xtables combined modules
#
CONFIG_NETFILTER_XT_MARK=m
CONFIG_NETFILTER_XT_CONNMARK=m
CONFIG_NETFILTER_XT_SET=m
#
# Xtables targets
#
CONFIG_NETFILTER_XT_TARGET_AUDIT=m
CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
CONFIG_NETFILTER_XT_TARGET_CONNMARK=m
CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=m
CONFIG_NETFILTER_XT_TARGET_CT=m
CONFIG_NETFILTER_XT_TARGET_DSCP=m
CONFIG_NETFILTER_XT_TARGET_HL=m
# CONFIG_NETFILTER_XT_TARGET_HMARK is not set
CONFIG_NETFILTER_XT_TARGET_IDLETIMER=m
CONFIG_NETFILTER_XT_TARGET_LED=m
# CONFIG_NETFILTER_XT_TARGET_LOG is not set
CONFIG_NETFILTER_XT_TARGET_MARK=m
CONFIG_NETFILTER_XT_TARGET_NFLOG=m
CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
CONFIG_NETFILTER_XT_TARGET_NOTRACK=m
CONFIG_NETFILTER_XT_TARGET_RATEEST=m
CONFIG_NETFILTER_XT_TARGET_TEE=m
CONFIG_NETFILTER_XT_TARGET_TPROXY=m
CONFIG_NETFILTER_XT_TARGET_TRACE=m
CONFIG_NETFILTER_XT_TARGET_SECMARK=m
CONFIG_NETFILTER_XT_TARGET_TCPMSS=m
CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP=m
#
# Xtables matches
#
CONFIG_NETFILTER_XT_MATCH_ADDRTYPE=m
# CONFIG_NETFILTER_XT_MATCH_BPF is not set
# CONFIG_NETFILTER_XT_MATCH_CGROUP is not set
CONFIG_NETFILTER_XT_MATCH_CLUSTER=m
CONFIG_NETFILTER_XT_MATCH_COMMENT=m
CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m
# CONFIG_NETFILTER_XT_MATCH_CONNLABEL is not set
CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=m
CONFIG_NETFILTER_XT_MATCH_CONNMARK=m
CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
CONFIG_NETFILTER_XT_MATCH_CPU=m
CONFIG_NETFILTER_XT_MATCH_DCCP=m
CONFIG_NETFILTER_XT_MATCH_DEVGROUP=m
CONFIG_NETFILTER_XT_MATCH_DSCP=m
CONFIG_NETFILTER_XT_MATCH_ECN=m
CONFIG_NETFILTER_XT_MATCH_ESP=m
CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m
CONFIG_NETFILTER_XT_MATCH_HELPER=m
CONFIG_NETFILTER_XT_MATCH_HL=m
# CONFIG_NETFILTER_XT_MATCH_IPCOMP is not set
CONFIG_NETFILTER_XT_MATCH_IPRANGE=m
CONFIG_NETFILTER_XT_MATCH_IPVS=m
CONFIG_NETFILTER_XT_MATCH_L2TP=m
CONFIG_NETFILTER_XT_MATCH_LENGTH=m
CONFIG_NETFILTER_XT_MATCH_LIMIT=m
CONFIG_NETFILTER_XT_MATCH_MAC=m
CONFIG_NETFILTER_XT_MATCH_MARK=m
CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m
# CONFIG_NETFILTER_XT_MATCH_NFACCT is not set
CONFIG_NETFILTER_XT_MATCH_OSF=m
CONFIG_NETFILTER_XT_MATCH_OWNER=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
CONFIG_NETFILTER_XT_MATCH_QUOTA=m
CONFIG_NETFILTER_XT_MATCH_RATEEST=m
CONFIG_NETFILTER_XT_MATCH_REALM=m
CONFIG_NETFILTER_XT_MATCH_RECENT=m
CONFIG_NETFILTER_XT_MATCH_SCTP=m
CONFIG_NETFILTER_XT_MATCH_SOCKET=m
CONFIG_NETFILTER_XT_MATCH_STATE=m
CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
CONFIG_NETFILTER_XT_MATCH_STRING=m
CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
CONFIG_NETFILTER_XT_MATCH_TIME=m
CONFIG_NETFILTER_XT_MATCH_U32=m
CONFIG_IP_SET=m
CONFIG_IP_SET_MAX=256
CONFIG_IP_SET_BITMAP_IP=m
CONFIG_IP_SET_BITMAP_IPMAC=m
CONFIG_IP_SET_BITMAP_PORT=m
CONFIG_IP_SET_HASH_IP=m
CONFIG_IP_SET_HASH_IPPORT=m
CONFIG_IP_SET_HASH_IPPORTIP=m
CONFIG_IP_SET_HASH_IPPORTNET=m
# CONFIG_IP_SET_HASH_NETPORTNET is not set
CONFIG_IP_SET_HASH_NET=m
# CONFIG_IP_SET_HASH_NETNET is not set
CONFIG_IP_SET_HASH_NETPORT=m
# CONFIG_IP_SET_HASH_NETIFACE is not set
CONFIG_IP_SET_LIST_SET=m
CONFIG_IP_VS=m
CONFIG_IP_VS_IPV6=y
# CONFIG_IP_VS_DEBUG is not set
CONFIG_IP_VS_TAB_BITS=12
#
# IPVS transport protocol load balancing support
#
CONFIG_IP_VS_PROTO_TCP=y
CONFIG_IP_VS_PROTO_UDP=y
CONFIG_IP_VS_PROTO_AH_ESP=y
CONFIG_IP_VS_PROTO_ESP=y
CONFIG_IP_VS_PROTO_AH=y
CONFIG_IP_VS_PROTO_SCTP=y
#
# IPVS scheduler
#
CONFIG_IP_VS_RR=m
CONFIG_IP_VS_WRR=m
CONFIG_IP_VS_LC=m
CONFIG_IP_VS_WLC=m
CONFIG_IP_VS_LBLC=m
CONFIG_IP_VS_LBLCR=m
CONFIG_IP_VS_DH=m
CONFIG_IP_VS_SH=m
CONFIG_IP_VS_SED=m
CONFIG_IP_VS_NQ=m
#
# IPVS SH scheduler
#
CONFIG_IP_VS_SH_TAB_BITS=8
#
# IPVS application helper
#
CONFIG_IP_VS_NFCT=y
# CONFIG_IP_VS_PE_SIP is not set
#
# IP: Netfilter Configuration
#
CONFIG_NF_DEFRAG_IPV4=m
CONFIG_NF_CONNTRACK_IPV4=m
# CONFIG_NF_CONNTRACK_PROC_COMPAT is not set
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_AH=m
CONFIG_IP_NF_MATCH_ECN=m
# CONFIG_IP_NF_MATCH_RPFILTER is not set
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
# CONFIG_IP_NF_TARGET_SYNPROXY is not set
CONFIG_IP_NF_TARGET_ULOG=m
# CONFIG_NF_NAT_IPV4 is not set
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_TARGET_CLUSTERIP=m
CONFIG_IP_NF_TARGET_ECN=m
CONFIG_IP_NF_TARGET_TTL=m
CONFIG_IP_NF_RAW=m
CONFIG_IP_NF_SECURITY=m
CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m
#
# IPv6: Netfilter Configuration
#
CONFIG_NF_DEFRAG_IPV6=m
CONFIG_NF_CONNTRACK_IPV6=m
CONFIG_IP6_NF_IPTABLES=m
CONFIG_IP6_NF_MATCH_AH=m
CONFIG_IP6_NF_MATCH_EUI64=m
CONFIG_IP6_NF_MATCH_FRAG=m
CONFIG_IP6_NF_MATCH_OPTS=m
CONFIG_IP6_NF_MATCH_HL=m
CONFIG_IP6_NF_MATCH_IPV6HEADER=m
CONFIG_IP6_NF_MATCH_MH=m
# CONFIG_IP6_NF_MATCH_RPFILTER is not set
CONFIG_IP6_NF_MATCH_RT=m
CONFIG_IP6_NF_TARGET_HL=m
CONFIG_IP6_NF_FILTER=m
CONFIG_IP6_NF_TARGET_REJECT=m
# CONFIG_IP6_NF_TARGET_SYNPROXY is not set
CONFIG_IP6_NF_MANGLE=m
CONFIG_IP6_NF_RAW=m
CONFIG_IP6_NF_SECURITY=m
# CONFIG_NF_NAT_IPV6 is not set
CONFIG_BRIDGE_NF_EBTABLES=m
CONFIG_BRIDGE_EBT_BROUTE=m
CONFIG_BRIDGE_EBT_T_FILTER=m
CONFIG_BRIDGE_EBT_T_NAT=m
CONFIG_BRIDGE_EBT_802_3=m
CONFIG_BRIDGE_EBT_AMONG=m
CONFIG_BRIDGE_EBT_ARP=m
CONFIG_BRIDGE_EBT_IP=m
CONFIG_BRIDGE_EBT_IP6=m
CONFIG_BRIDGE_EBT_LIMIT=m
CONFIG_BRIDGE_EBT_MARK=m
CONFIG_BRIDGE_EBT_PKTTYPE=m
CONFIG_BRIDGE_EBT_STP=m
CONFIG_BRIDGE_EBT_VLAN=m
CONFIG_BRIDGE_EBT_ARPREPLY=m
CONFIG_BRIDGE_EBT_DNAT=m
CONFIG_BRIDGE_EBT_MARK_T=m
CONFIG_BRIDGE_EBT_REDIRECT=m
CONFIG_BRIDGE_EBT_SNAT=m
CONFIG_BRIDGE_EBT_LOG=m
CONFIG_BRIDGE_EBT_ULOG=m
CONFIG_BRIDGE_EBT_NFLOG=m
CONFIG_IP_DCCP=m
CONFIG_INET_DCCP_DIAG=m
#
# DCCP CCIDs Configuration
#
# CONFIG_IP_DCCP_CCID2_DEBUG is not set
CONFIG_IP_DCCP_CCID3=y
# CONFIG_IP_DCCP_CCID3_DEBUG is not set
CONFIG_IP_DCCP_TFRC_LIB=y
#
# DCCP Kernel Hacking
#
# CONFIG_IP_DCCP_DEBUG is not set
CONFIG_NET_DCCPPROBE=m
CONFIG_IP_SCTP=m
CONFIG_NET_SCTPPROBE=m
# CONFIG_SCTP_DBG_OBJCNT is not set
CONFIG_SCTP_DEFAULT_COOKIE_HMAC_MD5=y
# CONFIG_SCTP_DEFAULT_COOKIE_HMAC_SHA1 is not set
# CONFIG_SCTP_DEFAULT_COOKIE_HMAC_NONE is not set
CONFIG_SCTP_COOKIE_HMAC_MD5=y
# CONFIG_SCTP_COOKIE_HMAC_SHA1 is not set
CONFIG_RDS=m
CONFIG_RDS_RDMA=m
CONFIG_RDS_TCP=m
# CONFIG_RDS_DEBUG is not set
# CONFIG_TIPC is not set
CONFIG_ATM=m
CONFIG_ATM_CLIP=m
# CONFIG_ATM_CLIP_NO_ICMP is not set
CONFIG_ATM_LANE=m
# CONFIG_ATM_MPOA is not set
CONFIG_ATM_BR2684=m
# CONFIG_ATM_BR2684_IPFILTER is not set
CONFIG_L2TP=m
CONFIG_L2TP_DEBUGFS=m
CONFIG_L2TP_V3=y
CONFIG_L2TP_IP=m
CONFIG_L2TP_ETH=m
CONFIG_STP=m
CONFIG_GARP=m
CONFIG_BRIDGE=m
CONFIG_BRIDGE_IGMP_SNOOPING=y
# CONFIG_BRIDGE_VLAN_FILTERING is not set
CONFIG_HAVE_NET_DSA=y
CONFIG_NET_DSA=y
CONFIG_NET_DSA_TAG_DSA=y
CONFIG_NET_DSA_TAG_EDSA=y
CONFIG_NET_DSA_TAG_TRAILER=y
CONFIG_VLAN_8021Q=m
CONFIG_VLAN_8021Q_GVRP=y
# CONFIG_VLAN_8021Q_MVRP is not set
# CONFIG_DECNET is not set
CONFIG_LLC=m
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
CONFIG_PHONET=m
CONFIG_IEEE802154=m
# CONFIG_IEEE802154_6LOWPAN is not set
CONFIG_6LOWPAN_IPHC=m
# CONFIG_MAC802154 is not set
CONFIG_NET_SCHED=y
#
# Queueing/Scheduling
#
CONFIG_NET_SCH_CBQ=m
CONFIG_NET_SCH_HTB=m
CONFIG_NET_SCH_HFSC=m
CONFIG_NET_SCH_ATM=m
CONFIG_NET_SCH_PRIO=m
CONFIG_NET_SCH_MULTIQ=m
CONFIG_NET_SCH_RED=m
CONFIG_NET_SCH_SFB=m
CONFIG_NET_SCH_SFQ=m
CONFIG_NET_SCH_TEQL=m
CONFIG_NET_SCH_TBF=m
CONFIG_NET_SCH_GRED=m
CONFIG_NET_SCH_DSMARK=m
CONFIG_NET_SCH_NETEM=m
CONFIG_NET_SCH_DRR=m
CONFIG_NET_SCH_MQPRIO=m
CONFIG_NET_SCH_CHOKE=m
# CONFIG_NET_SCH_QFQ is not set
# CONFIG_NET_SCH_CODEL is not set
# CONFIG_NET_SCH_FQ_CODEL is not set
# CONFIG_NET_SCH_FQ is not set
# CONFIG_NET_SCH_HHF is not set
# CONFIG_NET_SCH_PIE is not set
CONFIG_NET_SCH_INGRESS=m
# CONFIG_NET_SCH_PLUG is not set
#
# Classification
#
CONFIG_NET_CLS=y
CONFIG_NET_CLS_BASIC=m
CONFIG_NET_CLS_TCINDEX=m
CONFIG_NET_CLS_ROUTE4=m
CONFIG_NET_CLS_FW=m
CONFIG_NET_CLS_U32=m
CONFIG_CLS_U32_PERF=y
CONFIG_CLS_U32_MARK=y
CONFIG_NET_CLS_RSVP=m
CONFIG_NET_CLS_RSVP6=m
CONFIG_NET_CLS_FLOW=m
CONFIG_NET_CLS_CGROUP=y
# CONFIG_NET_CLS_BPF is not set
CONFIG_NET_EMATCH=y
CONFIG_NET_EMATCH_STACK=32
CONFIG_NET_EMATCH_CMP=m
CONFIG_NET_EMATCH_NBYTE=m
CONFIG_NET_EMATCH_U32=m
CONFIG_NET_EMATCH_META=m
CONFIG_NET_EMATCH_TEXT=m
# CONFIG_NET_EMATCH_CANID is not set
# CONFIG_NET_EMATCH_IPSET is not set
CONFIG_NET_CLS_ACT=y
CONFIG_NET_ACT_POLICE=m
CONFIG_NET_ACT_GACT=m
CONFIG_GACT_PROB=y
CONFIG_NET_ACT_MIRRED=m
CONFIG_NET_ACT_IPT=m
CONFIG_NET_ACT_NAT=m
CONFIG_NET_ACT_PEDIT=m
CONFIG_NET_ACT_SIMP=m
CONFIG_NET_ACT_SKBEDIT=m
CONFIG_NET_ACT_CSUM=m
CONFIG_NET_CLS_IND=y
CONFIG_NET_SCH_FIFO=y
CONFIG_DCB=y
CONFIG_DNS_RESOLVER=y
CONFIG_BATMAN_ADV=m
CONFIG_BATMAN_ADV_BLA=y
# CONFIG_BATMAN_ADV_DAT is not set
# CONFIG_BATMAN_ADV_NC is not set
# CONFIG_BATMAN_ADV_DEBUG is not set
# CONFIG_OPENVSWITCH is not set
# CONFIG_VSOCKETS is not set
# CONFIG_NETLINK_MMAP is not set
# CONFIG_NETLINK_DIAG is not set
# CONFIG_NET_MPLS_GSO is not set
# CONFIG_HSR is not set
CONFIG_RPS=y
CONFIG_RFS_ACCEL=y
CONFIG_XPS=y
# CONFIG_CGROUP_NET_PRIO is not set
CONFIG_CGROUP_NET_CLASSID=y
CONFIG_NET_RX_BUSY_POLL=y
CONFIG_BQL=y
CONFIG_BPF_JIT=y
CONFIG_NET_FLOW_LIMIT=y
#
# Network testing
#
CONFIG_NET_PKTGEN=m
# CONFIG_NET_TCPPROBE is not set
CONFIG_NET_DROP_MONITOR=y
# CONFIG_HAMRADIO is not set
CONFIG_CAN=m
CONFIG_CAN_RAW=m
CONFIG_CAN_BCM=m
CONFIG_CAN_GW=m
#
# CAN Device Drivers
#
CONFIG_CAN_VCAN=m
CONFIG_CAN_SLCAN=m
CONFIG_CAN_DEV=m
CONFIG_CAN_CALC_BITTIMING=y
# CONFIG_CAN_LEDS is not set
CONFIG_PCH_CAN=m
CONFIG_CAN_SJA1000=m
# CONFIG_CAN_SJA1000_ISA is not set
CONFIG_CAN_SJA1000_PLATFORM=m
# CONFIG_CAN_EMS_PCMCIA is not set
CONFIG_CAN_EMS_PCI=m
# CONFIG_CAN_PEAK_PCMCIA is not set
# CONFIG_CAN_PEAK_PCI is not set
CONFIG_CAN_KVASER_PCI=m
CONFIG_CAN_PLX_PCI=m
CONFIG_CAN_C_CAN=m
CONFIG_CAN_C_CAN_PLATFORM=m
# CONFIG_CAN_C_CAN_PCI is not set
# CONFIG_CAN_CC770 is not set
#
# CAN USB interfaces
#
CONFIG_CAN_EMS_USB=m
CONFIG_CAN_ESD_USB2=m
# CONFIG_CAN_KVASER_USB is not set
# CONFIG_CAN_PEAK_USB is not set
# CONFIG_CAN_8DEV_USB is not set
CONFIG_CAN_SOFTING=m
CONFIG_CAN_SOFTING_CS=m
# CONFIG_CAN_DEBUG_DEVICES is not set
# CONFIG_IRDA is not set
CONFIG_BT=m
CONFIG_BT_RFCOMM=m
CONFIG_BT_RFCOMM_TTY=y
CONFIG_BT_BNEP=m
CONFIG_BT_BNEP_MC_FILTER=y
CONFIG_BT_BNEP_PROTO_FILTER=y
CONFIG_BT_CMTP=m
CONFIG_BT_HIDP=m
#
# Bluetooth device drivers
#
CONFIG_BT_HCIBTUSB=m
CONFIG_BT_HCIBTSDIO=m
CONFIG_BT_HCIUART=m
CONFIG_BT_HCIUART_H4=y
CONFIG_BT_HCIUART_BCSP=y
CONFIG_BT_HCIUART_ATH3K=y
CONFIG_BT_HCIUART_LL=y
# CONFIG_BT_HCIUART_3WIRE is not set
CONFIG_BT_HCIBCM203X=m
CONFIG_BT_HCIBPA10X=m
CONFIG_BT_HCIBFUSB=m
CONFIG_BT_HCIDTL1=m
CONFIG_BT_HCIBT3C=m
CONFIG_BT_HCIBLUECARD=m
CONFIG_BT_HCIBTUART=m
CONFIG_BT_HCIVHCI=m
CONFIG_BT_MRVL=m
CONFIG_BT_MRVL_SDIO=m
CONFIG_BT_ATH3K=m
# CONFIG_AF_RXRPC is not set
CONFIG_FIB_RULES=y
CONFIG_WIRELESS=y
CONFIG_WIRELESS_EXT=y
CONFIG_WEXT_CORE=y
CONFIG_WEXT_PROC=y
CONFIG_WEXT_SPY=y
CONFIG_WEXT_PRIV=y
CONFIG_CFG80211=m
# CONFIG_NL80211_TESTMODE is not set
# CONFIG_CFG80211_DEVELOPER_WARNINGS is not set
# CONFIG_CFG80211_REG_DEBUG is not set
CONFIG_CFG80211_DEFAULT_PS=y
# CONFIG_CFG80211_DEBUGFS is not set
# CONFIG_CFG80211_INTERNAL_REGDB is not set
CONFIG_CFG80211_WEXT=y
CONFIG_LIB80211=m
CONFIG_LIB80211_CRYPT_WEP=m
CONFIG_LIB80211_CRYPT_CCMP=m
CONFIG_LIB80211_CRYPT_TKIP=m
# CONFIG_LIB80211_DEBUG is not set
CONFIG_MAC80211=m
CONFIG_MAC80211_HAS_RC=y
CONFIG_MAC80211_RC_MINSTREL=y
CONFIG_MAC80211_RC_MINSTREL_HT=y
CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT="minstrel_ht"
CONFIG_MAC80211_MESH=y
CONFIG_MAC80211_LEDS=y
# CONFIG_MAC80211_DEBUGFS is not set
# CONFIG_MAC80211_MESSAGE_TRACING is not set
# CONFIG_MAC80211_DEBUG_MENU is not set
CONFIG_WIMAX=m
CONFIG_WIMAX_DEBUG_LEVEL=8
CONFIG_RFKILL=m
CONFIG_RFKILL_LEDS=y
CONFIG_RFKILL_INPUT=y
# CONFIG_RFKILL_REGULATOR is not set
# CONFIG_RFKILL_GPIO is not set
CONFIG_NET_9P=m
CONFIG_NET_9P_VIRTIO=m
CONFIG_NET_9P_RDMA=m
# CONFIG_NET_9P_DEBUG is not set
# CONFIG_CAIF is not set
CONFIG_CEPH_LIB=m
# CONFIG_CEPH_LIB_PRETTYDEBUG is not set
# CONFIG_CEPH_LIB_USE_DNS_RESOLVER is not set
# CONFIG_NFC is not set
CONFIG_HAVE_BPF_JIT=y
#
# Device Drivers
#
#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH=""
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
# CONFIG_FIRMWARE_IN_KERNEL is not set
CONFIG_EXTRA_FIRMWARE=""
CONFIG_FW_LOADER_USER_HELPER=y
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
CONFIG_SYS_HYPERVISOR=y
# CONFIG_GENERIC_CPU_DEVICES is not set
CONFIG_REGMAP=y
CONFIG_REGMAP_I2C=m
CONFIG_DMA_SHARED_BUFFER=y
#
# Bus devices
#
CONFIG_CONNECTOR=y
CONFIG_PROC_EVENTS=y
CONFIG_MTD=y
# CONFIG_MTD_TESTS is not set
CONFIG_MTD_REDBOOT_PARTS=m
CONFIG_MTD_REDBOOT_DIRECTORY_BLOCK=-1
# CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED is not set
# CONFIG_MTD_REDBOOT_PARTS_READONLY is not set
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_AR7_PARTS=m
#
# User Modules And Translation Layers
#
CONFIG_MTD_BLKDEVS=m
CONFIG_MTD_BLOCK=m
CONFIG_MTD_BLOCK_RO=m
CONFIG_FTL=m
CONFIG_NFTL=m
CONFIG_NFTL_RW=y
# CONFIG_INFTL is not set
CONFIG_RFD_FTL=m
CONFIG_SSFDC=m
CONFIG_SM_FTL=m
CONFIG_MTD_OOPS=m
CONFIG_MTD_SWAP=m
#
# RAM/ROM/Flash chip drivers
#
CONFIG_MTD_CFI=m
CONFIG_MTD_JEDECPROBE=m
CONFIG_MTD_GEN_PROBE=m
# CONFIG_MTD_CFI_ADV_OPTIONS is not set
CONFIG_MTD_MAP_BANK_WIDTH_1=y
CONFIG_MTD_MAP_BANK_WIDTH_2=y
CONFIG_MTD_MAP_BANK_WIDTH_4=y
# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
CONFIG_MTD_CFI_I1=y
CONFIG_MTD_CFI_I2=y
# CONFIG_MTD_CFI_I4 is not set
# CONFIG_MTD_CFI_I8 is not set
CONFIG_MTD_CFI_INTELEXT=m
CONFIG_MTD_CFI_AMDSTD=m
CONFIG_MTD_CFI_STAA=m
CONFIG_MTD_CFI_UTIL=m
CONFIG_MTD_RAM=m
CONFIG_MTD_ROM=m
CONFIG_MTD_ABSENT=m
#
# Mapping drivers for chip access
#
# CONFIG_MTD_COMPLEX_MAPPINGS is not set
# CONFIG_MTD_PHYSMAP is not set
CONFIG_MTD_SC520CDP=m
CONFIG_MTD_NETSC520=m
CONFIG_MTD_TS5500=m
# CONFIG_MTD_AMD76XROM is not set
# CONFIG_MTD_ICHXROM is not set
CONFIG_MTD_ESB2ROM=m
CONFIG_MTD_CK804XROM=m
CONFIG_MTD_SCB2_FLASH=m
# CONFIG_MTD_NETtel is not set
# CONFIG_MTD_L440GX is not set
# CONFIG_MTD_INTEL_VR_NOR is not set
# CONFIG_MTD_PLATRAM is not set
#
# Self-contained MTD device drivers
#
# CONFIG_MTD_PMC551 is not set
# CONFIG_MTD_SLRAM is not set
# CONFIG_MTD_PHRAM is not set
CONFIG_MTD_MTDRAM=m
CONFIG_MTDRAM_TOTAL_SIZE=4096
CONFIG_MTDRAM_ERASE_SIZE=128
CONFIG_MTD_BLOCK2MTD=m
#
# Disk-On-Chip Device Drivers
#
# CONFIG_MTD_DOCG3 is not set
CONFIG_MTD_NAND_ECC=m
CONFIG_MTD_NAND_ECC_SMC=y
CONFIG_MTD_NAND=m
CONFIG_MTD_NAND_BCH=m
CONFIG_MTD_NAND_ECC_BCH=y
# CONFIG_MTD_SM_COMMON is not set
# CONFIG_MTD_NAND_DENALI is not set
# CONFIG_MTD_NAND_GPIO is not set
CONFIG_MTD_NAND_IDS=m
# CONFIG_MTD_NAND_RICOH is not set
CONFIG_MTD_NAND_DISKONCHIP=m
# CONFIG_MTD_NAND_DISKONCHIP_PROBE_ADVANCED is not set
CONFIG_MTD_NAND_DISKONCHIP_PROBE_ADDRESS=0
# CONFIG_MTD_NAND_DISKONCHIP_BBTWRITE is not set
# CONFIG_MTD_NAND_DOCG4 is not set
# CONFIG_MTD_NAND_CAFE is not set
CONFIG_MTD_NAND_NANDSIM=m
# CONFIG_MTD_NAND_PLATFORM is not set
# CONFIG_MTD_ONENAND is not set
#
# LPDDR flash memory drivers
#
CONFIG_MTD_LPDDR=m
CONFIG_MTD_QINFO_PROBE=m
CONFIG_MTD_UBI=m
CONFIG_MTD_UBI_WL_THRESHOLD=4096
CONFIG_MTD_UBI_BEB_LIMIT=20
# CONFIG_MTD_UBI_FASTMAP is not set
# CONFIG_MTD_UBI_GLUEBI is not set
CONFIG_PARPORT=m
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
CONFIG_PARPORT_PC=m
CONFIG_PARPORT_SERIAL=m
# CONFIG_PARPORT_PC_FIFO is not set
# CONFIG_PARPORT_PC_SUPERIO is not set
CONFIG_PARPORT_PC_PCMCIA=m
# CONFIG_PARPORT_GSC is not set
# CONFIG_PARPORT_AX88796 is not set
CONFIG_PARPORT_1284=y
CONFIG_PARPORT_NOT_PC=y
CONFIG_PNP=y
# CONFIG_PNP_DEBUG_MESSAGES is not set
#
# Protocols
#
CONFIG_PNPACPI=y
CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_NULL_BLK is not set
CONFIG_BLK_DEV_FD=m
# CONFIG_PARIDE is not set
# CONFIG_BLK_DEV_PCIESSD_MTIP32XX is not set
CONFIG_BLK_CPQ_CISS_DA=m
CONFIG_CISS_SCSI_TAPE=y
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_LOOP_MIN_COUNT=8
CONFIG_BLK_DEV_CRYPTOLOOP=m
CONFIG_BLK_DEV_DRBD=m
CONFIG_DRBD_FAULT_INJECTION=y
CONFIG_BLK_DEV_NBD=m
# CONFIG_BLK_DEV_NVME is not set
# CONFIG_BLK_DEV_SKD is not set
CONFIG_BLK_DEV_OSD=m
CONFIG_BLK_DEV_SX8=m
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=16384
# CONFIG_BLK_DEV_XIP is not set
CONFIG_CDROM_PKTCDVD=m
CONFIG_CDROM_PKTCDVD_BUFFERS=8
# CONFIG_CDROM_PKTCDVD_WCACHE is not set
CONFIG_ATA_OVER_ETH=m
CONFIG_XEN_BLKDEV_FRONTEND=m
CONFIG_XEN_BLKDEV_BACKEND=m
CONFIG_VIRTIO_BLK=m
# CONFIG_BLK_DEV_HD is not set
CONFIG_BLK_DEV_RBD=m
# CONFIG_BLK_DEV_RSXX is not set
#
# Misc devices
#
# CONFIG_SENSORS_LIS3LV02D is not set
CONFIG_AD525X_DPOT=m
CONFIG_AD525X_DPOT_I2C=m
# CONFIG_DUMMY_IRQ is not set
# CONFIG_IBM_ASM is not set
# CONFIG_PHANTOM is not set
CONFIG_SGI_IOC4=m
CONFIG_TIFM_CORE=m
CONFIG_TIFM_7XX1=m
CONFIG_ICS932S401=m
# CONFIG_ATMEL_SSC is not set
CONFIG_ENCLOSURE_SERVICES=m
CONFIG_HP_ILO=m
CONFIG_APDS9802ALS=m
CONFIG_ISL29003=m
CONFIG_ISL29020=m
CONFIG_SENSORS_TSL2550=m
CONFIG_SENSORS_BH1780=m
CONFIG_SENSORS_BH1770=m
CONFIG_SENSORS_APDS990X=m
CONFIG_HMC6352=m
# CONFIG_DS1682 is not set
# CONFIG_VMWARE_BALLOON is not set
# CONFIG_BMP085_I2C is not set
# CONFIG_PCH_PHUB is not set
# CONFIG_USB_SWITCH_FSA9480 is not set
# CONFIG_SRAM is not set
# CONFIG_C2PORT is not set
#
# EEPROM support
#
CONFIG_EEPROM_AT24=m
CONFIG_EEPROM_LEGACY=m
CONFIG_EEPROM_MAX6875=m
CONFIG_EEPROM_93CX6=m
CONFIG_CB710_CORE=m
# CONFIG_CB710_DEBUG is not set
CONFIG_CB710_DEBUG_ASSUMPTIONS=y
#
# Texas Instruments shared transport line discipline
#
# CONFIG_TI_ST is not set
# CONFIG_SENSORS_LIS3_I2C is not set
#
# Altera FPGA firmware download module
#
# CONFIG_ALTERA_STAPL is not set
# CONFIG_INTEL_MEI is not set
# CONFIG_INTEL_MEI_ME is not set
# CONFIG_VMWARE_VMCI is not set
#
# Intel MIC Host Driver
#
# CONFIG_INTEL_MIC_HOST is not set
#
# Intel MIC Card Driver
#
# CONFIG_INTEL_MIC_CARD is not set
# CONFIG_GENWQE is not set
CONFIG_HAVE_IDE=y
# CONFIG_IDE is not set
#
# SCSI device support
#
CONFIG_SCSI_MOD=y
CONFIG_RAID_ATTRS=m
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
CONFIG_SCSI_TGT=m
CONFIG_SCSI_NETLINK=y
CONFIG_SCSI_PROC_FS=y
#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=m
CONFIG_CHR_DEV_ST=m
CONFIG_CHR_DEV_OSST=m
CONFIG_BLK_DEV_SR=m
CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_CHR_DEV_SG=m
CONFIG_CHR_DEV_SCH=m
CONFIG_SCSI_ENCLOSURE=m
CONFIG_SCSI_MULTI_LUN=y
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
CONFIG_SCSI_SCAN_ASYNC=y
#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=m
CONFIG_SCSI_FC_ATTRS=m
CONFIG_SCSI_FC_TGT_ATTRS=y
CONFIG_SCSI_ISCSI_ATTRS=m
CONFIG_SCSI_SAS_ATTRS=m
CONFIG_SCSI_SAS_LIBSAS=m
CONFIG_SCSI_SAS_ATA=y
CONFIG_SCSI_SAS_HOST_SMP=y
CONFIG_SCSI_SRP_ATTRS=m
CONFIG_SCSI_SRP_TGT_ATTRS=y
CONFIG_SCSI_LOWLEVEL=y
CONFIG_ISCSI_TCP=m
CONFIG_ISCSI_BOOT_SYSFS=m
CONFIG_SCSI_CXGB3_ISCSI=m
CONFIG_SCSI_CXGB4_ISCSI=m
CONFIG_SCSI_BNX2_ISCSI=m
CONFIG_SCSI_BNX2X_FCOE=m
CONFIG_BE2ISCSI=m
CONFIG_BLK_DEV_3W_XXXX_RAID=m
CONFIG_SCSI_HPSA=m
CONFIG_SCSI_3W_9XXX=m
CONFIG_SCSI_3W_SAS=m
# CONFIG_SCSI_ACARD is not set
CONFIG_SCSI_AACRAID=m
CONFIG_SCSI_AIC7XXX=m
CONFIG_AIC7XXX_CMDS_PER_DEVICE=4
CONFIG_AIC7XXX_RESET_DELAY_MS=15000
# CONFIG_AIC7XXX_DEBUG_ENABLE is not set
CONFIG_AIC7XXX_DEBUG_MASK=0
# CONFIG_AIC7XXX_REG_PRETTY_PRINT is not set
CONFIG_SCSI_AIC79XX=m
CONFIG_AIC79XX_CMDS_PER_DEVICE=4
CONFIG_AIC79XX_RESET_DELAY_MS=15000
# CONFIG_AIC79XX_DEBUG_ENABLE is not set
CONFIG_AIC79XX_DEBUG_MASK=0
# CONFIG_AIC79XX_REG_PRETTY_PRINT is not set
CONFIG_SCSI_AIC94XX=m
# CONFIG_AIC94XX_DEBUG is not set
CONFIG_SCSI_MVSAS=m
# CONFIG_SCSI_MVSAS_DEBUG is not set
# CONFIG_SCSI_MVSAS_TASKLET is not set
# CONFIG_SCSI_MVUMI is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
CONFIG_SCSI_ARCMSR=m
# CONFIG_SCSI_ESAS2R is not set
CONFIG_MEGARAID_NEWGEN=y
CONFIG_MEGARAID_MM=m
CONFIG_MEGARAID_MAILBOX=m
# CONFIG_MEGARAID_LEGACY is not set
CONFIG_MEGARAID_SAS=m
CONFIG_SCSI_MPT2SAS=m
CONFIG_SCSI_MPT2SAS_MAX_SGE=128
CONFIG_SCSI_MPT2SAS_LOGGING=y
# CONFIG_SCSI_MPT3SAS is not set
# CONFIG_SCSI_UFSHCD is not set
CONFIG_SCSI_HPTIOP=m
# CONFIG_SCSI_BUSLOGIC is not set
CONFIG_VMWARE_PVSCSI=m
CONFIG_LIBFC=m
CONFIG_LIBFCOE=m
CONFIG_FCOE=m
CONFIG_FCOE_FNIC=m
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_EATA is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GDTH is not set
CONFIG_SCSI_ISCI=m
CONFIG_SCSI_IPS=m
CONFIG_SCSI_INITIO=m
# CONFIG_SCSI_INIA100 is not set
CONFIG_SCSI_PPA=m
CONFIG_SCSI_IMM=m
# CONFIG_SCSI_IZIP_EPP16 is not set
# CONFIG_SCSI_IZIP_SLOW_CTR is not set
CONFIG_SCSI_STEX=m
CONFIG_SCSI_SYM53C8XX_2=m
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
CONFIG_SCSI_SYM53C8XX_MMIO=y
# CONFIG_SCSI_IPR is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
CONFIG_SCSI_QLA_FC=m
# CONFIG_TCM_QLA2XXX is not set
CONFIG_SCSI_QLA_ISCSI=m
CONFIG_SCSI_LPFC=m
# CONFIG_SCSI_LPFC_DEBUG_FS is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_DC390T is not set
CONFIG_SCSI_DEBUG=m
CONFIG_SCSI_PMCRAID=m
# CONFIG_SCSI_PM8001 is not set
CONFIG_SCSI_SRP=m
CONFIG_SCSI_BFA_FC=m
# CONFIG_SCSI_VIRTIO is not set
# CONFIG_SCSI_CHELSIO_FCOE is not set
CONFIG_SCSI_LOWLEVEL_PCMCIA=y
# CONFIG_PCMCIA_AHA152X is not set
# CONFIG_PCMCIA_FDOMAIN is not set
# CONFIG_PCMCIA_QLOGIC is not set
# CONFIG_PCMCIA_SYM53C500 is not set
CONFIG_SCSI_DH=y
CONFIG_SCSI_DH_RDAC=m
CONFIG_SCSI_DH_HP_SW=m
CONFIG_SCSI_DH_EMC=m
CONFIG_SCSI_DH_ALUA=m
CONFIG_SCSI_OSD_INITIATOR=m
CONFIG_SCSI_OSD_ULD=m
CONFIG_SCSI_OSD_DPRINT_SENSE=1
# CONFIG_SCSI_OSD_DEBUG is not set
CONFIG_ATA=y
# CONFIG_ATA_NONSTANDARD is not set
CONFIG_ATA_VERBOSE_ERROR=y
CONFIG_ATA_ACPI=y
# CONFIG_SATA_ZPODD is not set
CONFIG_SATA_PMP=y
#
# Controllers with non-SFF native interface
#
CONFIG_SATA_AHCI=m
CONFIG_SATA_AHCI_PLATFORM=m
CONFIG_SATA_INIC162X=m
CONFIG_SATA_ACARD_AHCI=m
CONFIG_SATA_SIL24=m
CONFIG_ATA_SFF=y
#
# SFF controllers with custom DMA interface
#
CONFIG_PDC_ADMA=m
CONFIG_SATA_QSTOR=m
CONFIG_SATA_SX4=m
CONFIG_ATA_BMDMA=y
#
# SATA SFF controllers with BMDMA
#
CONFIG_ATA_PIIX=m
# CONFIG_SATA_HIGHBANK is not set
CONFIG_SATA_MV=m
CONFIG_SATA_NV=m
CONFIG_SATA_PROMISE=m
# CONFIG_SATA_RCAR is not set
CONFIG_SATA_SIL=m
CONFIG_SATA_SIS=m
CONFIG_SATA_SVW=m
CONFIG_SATA_ULI=m
CONFIG_SATA_VIA=m
CONFIG_SATA_VITESSE=m
#
# PATA SFF controllers with BMDMA
#
CONFIG_PATA_ALI=m
CONFIG_PATA_AMD=m
CONFIG_PATA_ARASAN_CF=m
CONFIG_PATA_ARTOP=m
CONFIG_PATA_ATIIXP=m
CONFIG_PATA_ATP867X=m
CONFIG_PATA_CMD64X=m
# CONFIG_PATA_CS5520 is not set
# CONFIG_PATA_CS5530 is not set
CONFIG_PATA_CS5536=m
# CONFIG_PATA_CYPRESS is not set
# CONFIG_PATA_EFAR is not set
CONFIG_PATA_HPT366=m
CONFIG_PATA_HPT37X=m
CONFIG_PATA_HPT3X2N=m
CONFIG_PATA_HPT3X3=m
# CONFIG_PATA_HPT3X3_DMA is not set
CONFIG_PATA_IT8213=m
CONFIG_PATA_IT821X=m
CONFIG_PATA_JMICRON=m
CONFIG_PATA_MARVELL=m
CONFIG_PATA_NETCELL=m
CONFIG_PATA_NINJA32=m
# CONFIG_PATA_NS87415 is not set
CONFIG_PATA_OLDPIIX=m
# CONFIG_PATA_OPTIDMA is not set
CONFIG_PATA_PDC2027X=m
CONFIG_PATA_PDC_OLD=m
# CONFIG_PATA_RADISYS is not set
CONFIG_PATA_RDC=m
# CONFIG_PATA_SC1200 is not set
CONFIG_PATA_SCH=m
CONFIG_PATA_SERVERWORKS=m
CONFIG_PATA_SIL680=m
CONFIG_PATA_SIS=m
CONFIG_PATA_TOSHIBA=m
# CONFIG_PATA_TRIFLEX is not set
CONFIG_PATA_VIA=m
# CONFIG_PATA_WINBOND is not set
#
# PIO-only SFF controllers
#
# CONFIG_PATA_CMD640_PCI is not set
# CONFIG_PATA_MPIIX is not set
# CONFIG_PATA_NS87410 is not set
# CONFIG_PATA_OPTI is not set
CONFIG_PATA_PCMCIA=m
# CONFIG_PATA_RZ1000 is not set
#
# Generic fallback / legacy drivers
#
CONFIG_PATA_ACPI=m
CONFIG_ATA_GENERIC=m
# CONFIG_PATA_LEGACY is not set
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
CONFIG_MD_AUTODETECT=y
CONFIG_MD_LINEAR=m
CONFIG_MD_RAID0=m
CONFIG_MD_RAID1=m
CONFIG_MD_RAID10=m
CONFIG_MD_RAID456=m
# CONFIG_MD_MULTIPATH is not set
CONFIG_MD_FAULTY=m
# CONFIG_BCACHE is not set
CONFIG_BLK_DEV_DM_BUILTIN=y
CONFIG_BLK_DEV_DM=m
CONFIG_DM_DEBUG=y
CONFIG_DM_BUFIO=m
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
# CONFIG_DM_THIN_PROVISIONING is not set
# CONFIG_DM_CACHE is not set
CONFIG_DM_MIRROR=m
CONFIG_DM_LOG_USERSPACE=m
CONFIG_DM_RAID=m
CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
CONFIG_DM_MULTIPATH_QL=m
CONFIG_DM_MULTIPATH_ST=m
CONFIG_DM_DELAY=m
CONFIG_DM_UEVENT=y
CONFIG_DM_FLAKEY=m
# CONFIG_DM_VERITY is not set
# CONFIG_DM_SWITCH is not set
CONFIG_TARGET_CORE=m
CONFIG_TCM_IBLOCK=m
CONFIG_TCM_FILEIO=m
CONFIG_TCM_PSCSI=m
CONFIG_LOOPBACK_TARGET=m
# CONFIG_TCM_FC is not set
# CONFIG_ISCSI_TARGET is not set
# CONFIG_SBP_TARGET is not set
CONFIG_FUSION=y
CONFIG_FUSION_SPI=m
CONFIG_FUSION_FC=m
CONFIG_FUSION_SAS=m
CONFIG_FUSION_MAX_SGE=128
CONFIG_FUSION_CTL=m
CONFIG_FUSION_LAN=m
CONFIG_FUSION_LOGGING=y
#
# IEEE 1394 (FireWire) support
#
CONFIG_FIREWIRE=m
CONFIG_FIREWIRE_OHCI=m
CONFIG_FIREWIRE_SBP2=m
CONFIG_FIREWIRE_NET=m
# CONFIG_FIREWIRE_NOSY is not set
# CONFIG_I2O is not set
CONFIG_MACINTOSH_DRIVERS=y
CONFIG_MAC_EMUMOUSEBTN=y
CONFIG_NETDEVICES=y
CONFIG_MII=m
CONFIG_NET_CORE=y
CONFIG_BONDING=m
CONFIG_DUMMY=m
# CONFIG_EQUALIZER is not set
CONFIG_NET_FC=y
CONFIG_IFB=m
# CONFIG_NET_TEAM is not set
CONFIG_MACVLAN=m
CONFIG_MACVTAP=m
# CONFIG_VXLAN is not set
CONFIG_NETCONSOLE=m
CONFIG_NETCONSOLE_DYNAMIC=y
CONFIG_NETPOLL=y
CONFIG_NETPOLL_TRAP=y
CONFIG_NET_POLL_CONTROLLER=y
# CONFIG_RIONET is not set
CONFIG_TUN=m
CONFIG_VETH=m
CONFIG_VIRTIO_NET=m
# CONFIG_NLMON is not set
CONFIG_SUNGEM_PHY=m
# CONFIG_ARCNET is not set
CONFIG_ATM_DRIVERS=y
# CONFIG_ATM_DUMMY is not set
CONFIG_ATM_TCP=m
# CONFIG_ATM_LANAI is not set
# CONFIG_ATM_ENI is not set
# CONFIG_ATM_FIRESTREAM is not set
# CONFIG_ATM_ZATM is not set
# CONFIG_ATM_NICSTAR is not set
# CONFIG_ATM_IDT77252 is not set
# CONFIG_ATM_AMBASSADOR is not set
# CONFIG_ATM_HORIZON is not set
# CONFIG_ATM_IA is not set
# CONFIG_ATM_FORE200E is not set
# CONFIG_ATM_HE is not set
# CONFIG_ATM_SOLOS is not set
#
# CAIF transport drivers
#
CONFIG_VHOST_NET=m
# CONFIG_VHOST_SCSI is not set
CONFIG_VHOST_RING=m
CONFIG_VHOST=m
#
# Distributed Switch Architecture drivers
#
CONFIG_NET_DSA_MV88E6XXX=y
CONFIG_NET_DSA_MV88E6060=y
CONFIG_NET_DSA_MV88E6XXX_NEED_PPU=y
CONFIG_NET_DSA_MV88E6131=y
CONFIG_NET_DSA_MV88E6123_61_65=y
CONFIG_ETHERNET=y
CONFIG_MDIO=m
CONFIG_NET_VENDOR_3COM=y
CONFIG_PCMCIA_3C574=m
CONFIG_PCMCIA_3C589=m
CONFIG_VORTEX=m
CONFIG_TYPHOON=m
CONFIG_NET_VENDOR_ADAPTEC=y
CONFIG_ADAPTEC_STARFIRE=m
CONFIG_NET_VENDOR_ALTEON=y
CONFIG_ACENIC=m
# CONFIG_ACENIC_OMIT_TIGON_I is not set
CONFIG_NET_VENDOR_AMD=y
CONFIG_AMD8111_ETH=m
CONFIG_PCNET32=m
CONFIG_PCMCIA_NMCLAN=m
CONFIG_NET_VENDOR_ARC=y
CONFIG_NET_VENDOR_ATHEROS=y
CONFIG_ATL2=m
CONFIG_ATL1=m
CONFIG_ATL1E=m
CONFIG_ATL1C=m
# CONFIG_ALX is not set
CONFIG_NET_CADENCE=y
# CONFIG_ARM_AT91_ETHER is not set
# CONFIG_MACB is not set
CONFIG_NET_VENDOR_BROADCOM=y
CONFIG_B44=m
CONFIG_B44_PCI_AUTOSELECT=y
CONFIG_B44_PCICORE_AUTOSELECT=y
CONFIG_B44_PCI=y
CONFIG_BNX2=m
CONFIG_CNIC=m
CONFIG_TIGON3=m
CONFIG_BNX2X=m
CONFIG_BNX2X_SRIOV=y
CONFIG_NET_VENDOR_BROCADE=y
CONFIG_BNA=m
# CONFIG_NET_CALXEDA_XGMAC is not set
CONFIG_NET_VENDOR_CHELSIO=y
CONFIG_CHELSIO_T1=m
CONFIG_CHELSIO_T1_1G=y
CONFIG_CHELSIO_T3=m
CONFIG_CHELSIO_T4=m
# CONFIG_CHELSIO_T4VF is not set
CONFIG_NET_VENDOR_CISCO=y
CONFIG_ENIC=m
CONFIG_DNET=m
CONFIG_NET_VENDOR_DEC=y
CONFIG_NET_TULIP=y
CONFIG_DE2104X=m
CONFIG_DE2104X_DSL=0
CONFIG_TULIP=m
# CONFIG_TULIP_MWI is not set
CONFIG_TULIP_MMIO=y
# CONFIG_TULIP_NAPI is not set
CONFIG_DE4X5=m
CONFIG_WINBOND_840=m
CONFIG_DM9102=m
CONFIG_ULI526X=m
CONFIG_PCMCIA_XIRCOM=m
CONFIG_NET_VENDOR_DLINK=y
CONFIG_DL2K=m
# CONFIG_SUNDANCE is not set
CONFIG_NET_VENDOR_EMULEX=y
CONFIG_BE2NET=m
CONFIG_NET_VENDOR_EXAR=y
CONFIG_S2IO=m
CONFIG_VXGE=m
# CONFIG_VXGE_DEBUG_TRACE_ALL is not set
CONFIG_NET_VENDOR_FUJITSU=y
CONFIG_PCMCIA_FMVJ18X=m
CONFIG_NET_VENDOR_HP=y
# CONFIG_HP100 is not set
CONFIG_NET_VENDOR_INTEL=y
CONFIG_E100=m
CONFIG_E1000=m
CONFIG_E1000E=m
CONFIG_IGB=m
CONFIG_IGB_HWMON=y
CONFIG_IGB_DCA=y
CONFIG_IGBVF=m
CONFIG_IXGB=m
CONFIG_IXGBE=m
CONFIG_IXGBE_HWMON=y
CONFIG_IXGBE_DCA=y
CONFIG_IXGBE_DCB=y
CONFIG_IXGBEVF=m
# CONFIG_I40E is not set
# CONFIG_I40EVF is not set
CONFIG_NET_VENDOR_I825XX=y
CONFIG_IP1000=m
CONFIG_JME=m
CONFIG_NET_VENDOR_MARVELL=y
# CONFIG_MVMDIO is not set
CONFIG_SKGE=m
# CONFIG_SKGE_DEBUG is not set
# CONFIG_SKGE_GENESIS is not set
CONFIG_SKY2=m
# CONFIG_SKY2_DEBUG is not set
CONFIG_NET_VENDOR_MELLANOX=y
CONFIG_MLX4_EN=m
CONFIG_MLX4_EN_DCB=y
CONFIG_MLX4_CORE=m
CONFIG_MLX4_DEBUG=y
# CONFIG_MLX5_CORE is not set
CONFIG_NET_VENDOR_MICREL=y
# CONFIG_KS8842 is not set
# CONFIG_KS8851_MLL is not set
# CONFIG_KSZ884X_PCI is not set
CONFIG_NET_VENDOR_MYRI=y
CONFIG_MYRI10GE=m
CONFIG_MYRI10GE_DCA=y
CONFIG_FEALNX=m
CONFIG_NET_VENDOR_NATSEMI=y
CONFIG_NATSEMI=m
CONFIG_NS83820=m
CONFIG_NET_VENDOR_8390=y
CONFIG_PCMCIA_AXNET=m
CONFIG_NE2K_PCI=m
CONFIG_PCMCIA_PCNET=m
CONFIG_NET_VENDOR_NVIDIA=y
CONFIG_FORCEDETH=m
CONFIG_NET_VENDOR_OKI=y
CONFIG_PCH_GBE=m
CONFIG_ETHOC=m
CONFIG_NET_PACKET_ENGINE=y
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
CONFIG_NET_VENDOR_QLOGIC=y
CONFIG_QLA3XXX=m
CONFIG_QLCNIC=m
CONFIG_QLCNIC_SRIOV=y
CONFIG_QLCNIC_DCB=y
CONFIG_QLGE=m
CONFIG_NETXEN_NIC=m
CONFIG_NET_VENDOR_REALTEK=y
# CONFIG_ATP is not set
CONFIG_8139CP=m
CONFIG_8139TOO=m
# CONFIG_8139TOO_PIO is not set
# CONFIG_8139TOO_TUNE_TWISTER is not set
CONFIG_8139TOO_8129=y
# CONFIG_8139_OLD_RX_RESET is not set
CONFIG_R8169=m
# CONFIG_SH_ETH is not set
CONFIG_NET_VENDOR_RDC=y
CONFIG_R6040=m
CONFIG_NET_VENDOR_SEEQ=y
CONFIG_NET_VENDOR_SILAN=y
CONFIG_SC92031=m
CONFIG_NET_VENDOR_SIS=y
CONFIG_SIS900=m
CONFIG_SIS190=m
CONFIG_SFC=m
CONFIG_SFC_MTD=y
CONFIG_SFC_MCDI_MON=y
CONFIG_SFC_SRIOV=y
CONFIG_NET_VENDOR_SMSC=y
CONFIG_PCMCIA_SMC91C92=m
CONFIG_EPIC100=m
# CONFIG_SMSC911X is not set
CONFIG_SMSC9420=m
CONFIG_NET_VENDOR_STMICRO=y
CONFIG_STMMAC_ETH=m
CONFIG_STMMAC_PLATFORM=y
# CONFIG_STMMAC_PCI is not set
# CONFIG_STMMAC_DEBUG_FS is not set
CONFIG_STMMAC_DA=y
CONFIG_NET_VENDOR_SUN=y
CONFIG_HAPPYMEAL=m
CONFIG_SUNGEM=m
CONFIG_CASSINI=m
CONFIG_NIU=m
CONFIG_NET_VENDOR_TEHUTI=y
CONFIG_TEHUTI=m
CONFIG_NET_VENDOR_TI=y
CONFIG_TLAN=m
CONFIG_NET_VENDOR_VIA=y
CONFIG_VIA_RHINE=m
CONFIG_VIA_RHINE_MMIO=y
CONFIG_VIA_VELOCITY=m
CONFIG_NET_VENDOR_WIZNET=y
# CONFIG_WIZNET_W5100 is not set
# CONFIG_WIZNET_W5300 is not set
CONFIG_NET_VENDOR_XIRCOM=y
CONFIG_PCMCIA_XIRC2PS=m
CONFIG_FDDI=y
# CONFIG_DEFXX is not set
# CONFIG_SKFP is not set
# CONFIG_HIPPI is not set
# CONFIG_NET_SB1000 is not set
CONFIG_PHYLIB=y
#
# MII PHY device drivers
#
# CONFIG_AT803X_PHY is not set
# CONFIG_AMD_PHY is not set
CONFIG_MARVELL_PHY=m
CONFIG_DAVICOM_PHY=m
CONFIG_QSEMI_PHY=m
CONFIG_LXT_PHY=m
CONFIG_CICADA_PHY=m
CONFIG_VITESSE_PHY=m
CONFIG_SMSC_PHY=m
CONFIG_BROADCOM_PHY=m
# CONFIG_BCM87XX_PHY is not set
CONFIG_ICPLUS_PHY=m
CONFIG_REALTEK_PHY=m
CONFIG_NATIONAL_PHY=m
CONFIG_STE10XP=m
CONFIG_LSI_ET1011C_PHY=m
CONFIG_MICREL_PHY=m
CONFIG_FIXED_PHY=y
CONFIG_MDIO_BITBANG=m
# CONFIG_MDIO_GPIO is not set
# CONFIG_PLIP is not set
CONFIG_PPP=m
# CONFIG_PPP_BSDCOMP is not set
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_FILTER=y
CONFIG_PPP_MPPE=m
CONFIG_PPP_MULTILINK=y
CONFIG_PPPOATM=m
CONFIG_PPPOE=m
CONFIG_PPTP=m
CONFIG_PPPOL2TP=m
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
CONFIG_SLIP=m
CONFIG_SLHC=m
CONFIG_SLIP_COMPRESSED=y
CONFIG_SLIP_SMART=y
# CONFIG_SLIP_MODE_SLIP6 is not set
#
# USB Network Adapters
#
CONFIG_USB_CATC=m
CONFIG_USB_KAWETH=m
CONFIG_USB_PEGASUS=m
CONFIG_USB_RTL8150=m
# CONFIG_USB_RTL8152 is not set
CONFIG_USB_USBNET=m
CONFIG_USB_NET_AX8817X=m
CONFIG_USB_NET_AX88179_178A=m
CONFIG_USB_NET_CDCETHER=m
CONFIG_USB_NET_CDC_EEM=m
CONFIG_USB_NET_CDC_NCM=m
# CONFIG_USB_NET_HUAWEI_CDC_NCM is not set
# CONFIG_USB_NET_CDC_MBIM is not set
CONFIG_USB_NET_DM9601=m
# CONFIG_USB_NET_SR9700 is not set
# CONFIG_USB_NET_SR9800 is not set
# CONFIG_USB_NET_SMSC75XX is not set
CONFIG_USB_NET_SMSC95XX=m
CONFIG_USB_NET_GL620A=m
CONFIG_USB_NET_NET1080=m
CONFIG_USB_NET_PLUSB=m
CONFIG_USB_NET_MCS7830=m
CONFIG_USB_NET_RNDIS_HOST=m
CONFIG_USB_NET_CDC_SUBSET=m
CONFIG_USB_ALI_M5632=y
CONFIG_USB_AN2720=y
CONFIG_USB_BELKIN=y
CONFIG_USB_ARMLINUX=y
CONFIG_USB_EPSON2888=y
CONFIG_USB_KC2190=y
CONFIG_USB_NET_ZAURUS=m
CONFIG_USB_NET_CX82310_ETH=m
CONFIG_USB_NET_KALMIA=m
# CONFIG_USB_NET_QMI_WWAN is not set
CONFIG_USB_HSO=m
CONFIG_USB_NET_INT51X1=m
CONFIG_USB_CDC_PHONET=m
CONFIG_USB_IPHETH=m
CONFIG_USB_SIERRA_NET=m
# CONFIG_USB_VL600 is not set
CONFIG_WLAN=y
# CONFIG_PCMCIA_RAYCS is not set
CONFIG_LIBERTAS_THINFIRM=m
# CONFIG_LIBERTAS_THINFIRM_DEBUG is not set
CONFIG_LIBERTAS_THINFIRM_USB=m
CONFIG_AIRO=m
CONFIG_ATMEL=m
CONFIG_PCI_ATMEL=m
CONFIG_PCMCIA_ATMEL=m
CONFIG_AT76C50X_USB=m
CONFIG_AIRO_CS=m
CONFIG_PCMCIA_WL3501=m
# CONFIG_PRISM54 is not set
CONFIG_USB_ZD1201=m
CONFIG_USB_NET_RNDIS_WLAN=m
CONFIG_RTL8180=m
CONFIG_RTL8187=m
CONFIG_RTL8187_LEDS=y
CONFIG_ADM8211=m
CONFIG_MAC80211_HWSIM=m
CONFIG_MWL8K=m
# CONFIG_ATH_CARDS is not set
CONFIG_B43=m
CONFIG_B43_SSB=y
CONFIG_B43_PCI_AUTOSELECT=y
CONFIG_B43_PCICORE_AUTOSELECT=y
CONFIG_B43_PCMCIA=y
CONFIG_B43_SDIO=y
CONFIG_B43_PIO=y
# CONFIG_B43_PHY_N is not set
CONFIG_B43_PHY_LP=y
CONFIG_B43_LEDS=y
CONFIG_B43_HWRNG=y
# CONFIG_B43_DEBUG is not set
CONFIG_B43LEGACY=m
CONFIG_B43LEGACY_PCI_AUTOSELECT=y
CONFIG_B43LEGACY_PCICORE_AUTOSELECT=y
CONFIG_B43LEGACY_LEDS=y
CONFIG_B43LEGACY_HWRNG=y
# CONFIG_B43LEGACY_DEBUG is not set
CONFIG_B43LEGACY_DMA=y
CONFIG_B43LEGACY_PIO=y
CONFIG_B43LEGACY_DMA_AND_PIO_MODE=y
# CONFIG_B43LEGACY_DMA_MODE is not set
# CONFIG_B43LEGACY_PIO_MODE is not set
# CONFIG_BRCMSMAC is not set
# CONFIG_BRCMFMAC is not set
CONFIG_HOSTAP=m
CONFIG_HOSTAP_FIRMWARE=y
CONFIG_HOSTAP_FIRMWARE_NVRAM=y
CONFIG_HOSTAP_PLX=m
CONFIG_HOSTAP_PCI=m
CONFIG_HOSTAP_CS=m
CONFIG_IPW2100=m
CONFIG_IPW2100_MONITOR=y
# CONFIG_IPW2100_DEBUG is not set
CONFIG_IPW2200=m
CONFIG_IPW2200_MONITOR=y
CONFIG_IPW2200_RADIOTAP=y
CONFIG_IPW2200_PROMISCUOUS=y
CONFIG_IPW2200_QOS=y
# CONFIG_IPW2200_DEBUG is not set
CONFIG_LIBIPW=m
# CONFIG_LIBIPW_DEBUG is not set
# CONFIG_IWLWIFI is not set
CONFIG_IWLEGACY=m
CONFIG_IWL4965=m
CONFIG_IWL3945=m
#
# iwl3945 / iwl4965 Debugging Options
#
# CONFIG_IWLEGACY_DEBUG is not set
CONFIG_LIBERTAS=m
CONFIG_LIBERTAS_USB=m
CONFIG_LIBERTAS_CS=m
CONFIG_LIBERTAS_SDIO=m
CONFIG_LIBERTAS_DEBUG=y
# CONFIG_LIBERTAS_MESH is not set
CONFIG_HERMES=m
# CONFIG_HERMES_PRISM is not set
CONFIG_HERMES_CACHE_FW_ON_INIT=y
CONFIG_PLX_HERMES=m
CONFIG_TMD_HERMES=m
CONFIG_NORTEL_HERMES=m
CONFIG_PCMCIA_HERMES=m
CONFIG_PCMCIA_SPECTRUM=m
# CONFIG_ORINOCO_USB is not set
CONFIG_P54_COMMON=m
CONFIG_P54_USB=m
CONFIG_P54_PCI=m
CONFIG_P54_LEDS=y
CONFIG_RT2X00=m
CONFIG_RT2400PCI=m
CONFIG_RT2500PCI=m
CONFIG_RT61PCI=m
# CONFIG_RT2800PCI is not set
CONFIG_RT2500USB=m
CONFIG_RT73USB=m
# CONFIG_RT2800USB is not set
CONFIG_RT2X00_LIB_MMIO=m
CONFIG_RT2X00_LIB_PCI=m
CONFIG_RT2X00_LIB_USB=m
CONFIG_RT2X00_LIB=m
CONFIG_RT2X00_LIB_FIRMWARE=y
CONFIG_RT2X00_LIB_CRYPTO=y
CONFIG_RT2X00_LIB_LEDS=y
# CONFIG_RT2X00_DEBUG is not set
CONFIG_RTL_CARDS=m
# CONFIG_RTL8192CE is not set
CONFIG_RTL8192SE=m
# CONFIG_RTL8192DE is not set
# CONFIG_RTL8723AE is not set
# CONFIG_RTL8188EE is not set
CONFIG_RTL8192CU=m
CONFIG_RTLWIFI=m
CONFIG_RTLWIFI_PCI=m
CONFIG_RTLWIFI_USB=m
CONFIG_RTLWIFI_DEBUG=y
CONFIG_RTL8192C_COMMON=m
# CONFIG_WL_TI is not set
CONFIG_ZD1211RW=m
# CONFIG_ZD1211RW_DEBUG is not set
# CONFIG_MWIFIEX is not set
# CONFIG_CW1200 is not set
#
# WiMAX Wireless Broadband devices
#
CONFIG_WIMAX_I2400M=m
CONFIG_WIMAX_I2400M_USB=m
CONFIG_WIMAX_I2400M_DEBUG_LEVEL=8
CONFIG_WAN=y
# CONFIG_LANMEDIA is not set
CONFIG_HDLC=m
CONFIG_HDLC_RAW=m
# CONFIG_HDLC_RAW_ETH is not set
CONFIG_HDLC_CISCO=m
CONFIG_HDLC_FR=m
CONFIG_HDLC_PPP=m
#
# X.25/LAPB support is disabled
#
# CONFIG_PCI200SYN is not set
# CONFIG_WANXL is not set
# CONFIG_PC300TOO is not set
# CONFIG_FARSYNC is not set
# CONFIG_DSCC4 is not set
CONFIG_DLCI=m
CONFIG_DLCI_MAX=8
# CONFIG_SBNI is not set
CONFIG_IEEE802154_DRIVERS=m
CONFIG_IEEE802154_FAKEHARD=m
CONFIG_XEN_NETDEV_FRONTEND=y
CONFIG_XEN_NETDEV_BACKEND=m
CONFIG_VMXNET3=m
CONFIG_ISDN=y
CONFIG_ISDN_I4L=m
CONFIG_ISDN_PPP=y
CONFIG_ISDN_PPP_VJ=y
CONFIG_ISDN_MPP=y
CONFIG_IPPP_FILTER=y
# CONFIG_ISDN_PPP_BSDCOMP is not set
CONFIG_ISDN_AUDIO=y
CONFIG_ISDN_TTY_FAX=y
#
# ISDN feature submodules
#
CONFIG_ISDN_DIVERSION=m
#
# ISDN4Linux hardware drivers
#
#
# Passive cards
#
CONFIG_ISDN_DRV_HISAX=m
#
# D-channel protocol features
#
CONFIG_HISAX_EURO=y
CONFIG_DE_AOC=y
CONFIG_HISAX_NO_SENDCOMPLETE=y
CONFIG_HISAX_NO_LLC=y
CONFIG_HISAX_NO_KEYPAD=y
CONFIG_HISAX_1TR6=y
CONFIG_HISAX_NI1=y
CONFIG_HISAX_MAX_CARDS=8
#
# HiSax supported cards
#
CONFIG_HISAX_16_3=y
CONFIG_HISAX_TELESPCI=y
CONFIG_HISAX_S0BOX=y
CONFIG_HISAX_FRITZPCI=y
CONFIG_HISAX_AVM_A1_PCMCIA=y
CONFIG_HISAX_ELSA=y
CONFIG_HISAX_DIEHLDIVA=y
CONFIG_HISAX_SEDLBAUER=y
CONFIG_HISAX_NETJET=y
CONFIG_HISAX_NETJET_U=y
CONFIG_HISAX_NICCY=y
CONFIG_HISAX_BKM_A4T=y
CONFIG_HISAX_SCT_QUADRO=y
CONFIG_HISAX_GAZEL=y
CONFIG_HISAX_HFC_PCI=y
CONFIG_HISAX_W6692=y
CONFIG_HISAX_HFC_SX=y
CONFIG_HISAX_ENTERNOW_PCI=y
# CONFIG_HISAX_DEBUG is not set
#
# HiSax PCMCIA card service modules
#
CONFIG_HISAX_SEDLBAUER_CS=m
CONFIG_HISAX_ELSA_CS=m
CONFIG_HISAX_AVM_A1_CS=m
CONFIG_HISAX_TELES_CS=m
#
# HiSax sub driver modules
#
CONFIG_HISAX_ST5481=m
# CONFIG_HISAX_HFCUSB is not set
CONFIG_HISAX_HFC4S8S=m
CONFIG_HISAX_FRITZ_PCIPNP=m
#
# Active cards
#
CONFIG_ISDN_CAPI=m
CONFIG_ISDN_DRV_AVMB1_VERBOSE_REASON=y
# CONFIG_CAPI_TRACE is not set
CONFIG_ISDN_CAPI_CAPI20=m
CONFIG_ISDN_CAPI_MIDDLEWARE=y
CONFIG_ISDN_CAPI_CAPIDRV=m
#
# CAPI hardware drivers
#
CONFIG_CAPI_AVM=y
CONFIG_ISDN_DRV_AVMB1_B1PCI=m
CONFIG_ISDN_DRV_AVMB1_B1PCIV4=y
CONFIG_ISDN_DRV_AVMB1_B1PCMCIA=m
CONFIG_ISDN_DRV_AVMB1_AVM_CS=m
CONFIG_ISDN_DRV_AVMB1_T1PCI=m
CONFIG_ISDN_DRV_AVMB1_C4=m
CONFIG_CAPI_EICON=y
# CONFIG_ISDN_DIVAS is not set
CONFIG_ISDN_DRV_GIGASET=m
# CONFIG_GIGASET_CAPI is not set
CONFIG_GIGASET_I4L=y
# CONFIG_GIGASET_DUMMYLL is not set
CONFIG_GIGASET_BASE=m
CONFIG_GIGASET_M105=m
CONFIG_GIGASET_M101=m
# CONFIG_GIGASET_DEBUG is not set
CONFIG_HYSDN=m
CONFIG_HYSDN_CAPI=y
CONFIG_MISDN=m
CONFIG_MISDN_DSP=m
CONFIG_MISDN_L1OIP=m
#
# mISDN hardware drivers
#
CONFIG_MISDN_HFCPCI=m
CONFIG_MISDN_HFCMULTI=m
CONFIG_MISDN_HFCUSB=m
CONFIG_MISDN_AVMFRITZ=m
CONFIG_MISDN_SPEEDFAX=m
CONFIG_MISDN_INFINEON=m
CONFIG_MISDN_W6692=m
CONFIG_MISDN_NETJET=m
CONFIG_MISDN_IPAC=m
CONFIG_MISDN_ISAR=m
CONFIG_ISDN_HDLC=m
#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_FF_MEMLESS=y
CONFIG_INPUT_POLLDEV=m
CONFIG_INPUT_SPARSEKMAP=m
CONFIG_INPUT_MATRIXKMAP=m
#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_EVBUG is not set
#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ADP5588 is not set
# CONFIG_KEYBOARD_ADP5589 is not set
CONFIG_KEYBOARD_ATKBD=y
CONFIG_KEYBOARD_QT1070=m
CONFIG_KEYBOARD_QT2160=m
# CONFIG_KEYBOARD_LKKBD is not set
CONFIG_KEYBOARD_GPIO=m
CONFIG_KEYBOARD_GPIO_POLLED=m
CONFIG_KEYBOARD_TCA6416=m
# CONFIG_KEYBOARD_TCA8418 is not set
CONFIG_KEYBOARD_MATRIX=m
# CONFIG_KEYBOARD_LM8323 is not set
# CONFIG_KEYBOARD_LM8333 is not set
# CONFIG_KEYBOARD_MAX7359 is not set
CONFIG_KEYBOARD_MCS=m
# CONFIG_KEYBOARD_MPR121 is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_CYPRESS=y
CONFIG_MOUSE_PS2_LIFEBOOK=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
CONFIG_MOUSE_PS2_ELANTECH=y
# CONFIG_MOUSE_PS2_SENTELIC is not set
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
CONFIG_MOUSE_SERIAL=m
CONFIG_MOUSE_APPLETOUCH=m
CONFIG_MOUSE_BCM5974=m
# CONFIG_MOUSE_CYAPA is not set
CONFIG_MOUSE_VSXXXAA=m
CONFIG_MOUSE_GPIO=m
CONFIG_MOUSE_SYNAPTICS_I2C=m
# CONFIG_MOUSE_SYNAPTICS_USB is not set
# CONFIG_INPUT_JOYSTICK is not set
CONFIG_INPUT_TABLET=y
CONFIG_TABLET_USB_ACECAD=m
CONFIG_TABLET_USB_AIPTEK=m
CONFIG_TABLET_USB_GTCO=m
CONFIG_TABLET_USB_HANWANG=m
CONFIG_TABLET_USB_KBTAB=m
CONFIG_TABLET_USB_WACOM=m
CONFIG_INPUT_TOUCHSCREEN=y
CONFIG_TOUCHSCREEN_AD7879=m
CONFIG_TOUCHSCREEN_AD7879_I2C=m
CONFIG_TOUCHSCREEN_ATMEL_MXT=m
# CONFIG_TOUCHSCREEN_AUO_PIXCIR is not set
CONFIG_TOUCHSCREEN_BU21013=m
CONFIG_TOUCHSCREEN_CY8CTMG110=m
# CONFIG_TOUCHSCREEN_CYTTSP_CORE is not set
# CONFIG_TOUCHSCREEN_CYTTSP4_CORE is not set
CONFIG_TOUCHSCREEN_DYNAPRO=m
CONFIG_TOUCHSCREEN_HAMPSHIRE=m
CONFIG_TOUCHSCREEN_EETI=m
CONFIG_TOUCHSCREEN_FUJITSU=m
# CONFIG_TOUCHSCREEN_ILI210X is not set
CONFIG_TOUCHSCREEN_GUNZE=m
CONFIG_TOUCHSCREEN_ELO=m
CONFIG_TOUCHSCREEN_WACOM_W8001=m
# CONFIG_TOUCHSCREEN_WACOM_I2C is not set
# CONFIG_TOUCHSCREEN_MAX11801 is not set
# CONFIG_TOUCHSCREEN_MCS5000 is not set
# CONFIG_TOUCHSCREEN_MMS114 is not set
CONFIG_TOUCHSCREEN_MTOUCH=m
CONFIG_TOUCHSCREEN_INEXIO=m
CONFIG_TOUCHSCREEN_MK712=m
CONFIG_TOUCHSCREEN_PENMOUNT=m
# CONFIG_TOUCHSCREEN_EDT_FT5X06 is not set
CONFIG_TOUCHSCREEN_TOUCHRIGHT=m
CONFIG_TOUCHSCREEN_TOUCHWIN=m
# CONFIG_TOUCHSCREEN_PIXCIR is not set
# CONFIG_TOUCHSCREEN_WM97XX is not set
CONFIG_TOUCHSCREEN_USB_COMPOSITE=m
CONFIG_TOUCHSCREEN_USB_EGALAX=y
CONFIG_TOUCHSCREEN_USB_PANJIT=y
CONFIG_TOUCHSCREEN_USB_3M=y
CONFIG_TOUCHSCREEN_USB_ITM=y
CONFIG_TOUCHSCREEN_USB_ETURBO=y
CONFIG_TOUCHSCREEN_USB_GUNZE=y
CONFIG_TOUCHSCREEN_USB_DMC_TSC10=y
CONFIG_TOUCHSCREEN_USB_IRTOUCH=y
CONFIG_TOUCHSCREEN_USB_IDEALTEK=y
CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH=y
CONFIG_TOUCHSCREEN_USB_GOTOP=y
CONFIG_TOUCHSCREEN_USB_JASTEC=y
CONFIG_TOUCHSCREEN_USB_ELO=y
CONFIG_TOUCHSCREEN_USB_E2I=y
CONFIG_TOUCHSCREEN_USB_ZYTRONIC=y
CONFIG_TOUCHSCREEN_USB_ETT_TC45USB=y
CONFIG_TOUCHSCREEN_USB_NEXIO=y
CONFIG_TOUCHSCREEN_USB_EASYTOUCH=y
CONFIG_TOUCHSCREEN_TOUCHIT213=m
# CONFIG_TOUCHSCREEN_TSC_SERIO is not set
CONFIG_TOUCHSCREEN_TSC2007=m
# CONFIG_TOUCHSCREEN_ST1232 is not set
# CONFIG_TOUCHSCREEN_SUR40 is not set
# CONFIG_TOUCHSCREEN_TPS6507X is not set
# CONFIG_TOUCHSCREEN_ZFORCE is not set
CONFIG_INPUT_MISC=y
# CONFIG_INPUT_AD714X is not set
# CONFIG_INPUT_BMA150 is not set
CONFIG_INPUT_PCSPKR=m
# CONFIG_INPUT_MMA8450 is not set
# CONFIG_INPUT_MPU3050 is not set
CONFIG_INPUT_APANEL=m
# CONFIG_INPUT_GP2A is not set
# CONFIG_INPUT_GPIO_TILT_POLLED is not set
CONFIG_INPUT_ATLAS_BTNS=m
CONFIG_INPUT_ATI_REMOTE2=m
CONFIG_INPUT_KEYSPAN_REMOTE=m
# CONFIG_INPUT_KXTJ9 is not set
CONFIG_INPUT_POWERMATE=m
CONFIG_INPUT_YEALINK=m
CONFIG_INPUT_CM109=m
CONFIG_INPUT_UINPUT=m
# CONFIG_INPUT_PCF8574 is not set
# CONFIG_INPUT_GPIO_ROTARY_ENCODER is not set
# CONFIG_INPUT_ADXL34X is not set
# CONFIG_INPUT_IMS_PCU is not set
# CONFIG_INPUT_CMA3000 is not set
CONFIG_INPUT_XEN_KBDDEV_FRONTEND=y
# CONFIG_INPUT_IDEAPAD_SLIDEBAR is not set
#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y
CONFIG_SERIO_I8042=y
CONFIG_SERIO_SERPORT=y
# CONFIG_SERIO_CT82C710 is not set
# CONFIG_SERIO_PARKBD is not set
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
CONFIG_SERIO_RAW=m
# CONFIG_SERIO_ALTERA_PS2 is not set
# CONFIG_SERIO_PS2MULT is not set
# CONFIG_SERIO_ARC_PS2 is not set
# CONFIG_GAMEPORT is not set
#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_VT_CONSOLE_SLEEP=y
CONFIG_HW_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_UNIX98_PTYS=y
CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
# CONFIG_LEGACY_PTYS is not set
CONFIG_SERIAL_NONSTANDARD=y
# CONFIG_ROCKETPORT is not set
CONFIG_CYCLADES=m
# CONFIG_CYZ_INTR is not set
# CONFIG_MOXA_INTELLIO is not set
# CONFIG_MOXA_SMARTIO is not set
CONFIG_SYNCLINK=m
CONFIG_SYNCLINKMP=m
CONFIG_SYNCLINK_GT=m
CONFIG_NOZOMI=m
# CONFIG_ISI is not set
CONFIG_N_HDLC=m
# CONFIG_N_GSM is not set
# CONFIG_TRACE_SINK is not set
# CONFIG_DEVKMEM is not set
#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_DEPRECATED_OPTIONS=y
CONFIG_SERIAL_8250_PNP=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_SERIAL_8250_DMA=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_CS=m
CONFIG_SERIAL_8250_NR_UARTS=32
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
CONFIG_SERIAL_8250_DETECT_IRQ=y
CONFIG_SERIAL_8250_RSA=y
# CONFIG_SERIAL_8250_DW is not set
#
# Non-8250 serial port support
#
# CONFIG_SERIAL_KGDB_NMI is not set
CONFIG_SERIAL_MFD_HSU=m
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_CONSOLE_POLL=y
CONFIG_SERIAL_JSM=m
# CONFIG_SERIAL_SCCNXP is not set
CONFIG_SERIAL_TIMBERDALE=m
CONFIG_SERIAL_ALTERA_JTAGUART=m
CONFIG_SERIAL_ALTERA_UART=m
CONFIG_SERIAL_ALTERA_UART_MAXPORTS=4
CONFIG_SERIAL_ALTERA_UART_BAUDRATE=115200
CONFIG_SERIAL_PCH_UART=m
# CONFIG_SERIAL_ARC is not set
# CONFIG_SERIAL_RP2 is not set
# CONFIG_SERIAL_FSL_LPUART is not set
CONFIG_PRINTER=m
CONFIG_LP_CONSOLE=y
CONFIG_PPDEV=m
CONFIG_HVC_DRIVER=y
CONFIG_HVC_IRQ=y
CONFIG_HVC_XEN=y
CONFIG_HVC_XEN_FRONTEND=y
CONFIG_VIRTIO_CONSOLE=m
CONFIG_IPMI_HANDLER=m
# CONFIG_IPMI_PANIC_EVENT is not set
CONFIG_IPMI_DEVICE_INTERFACE=m
CONFIG_IPMI_SI=m
CONFIG_IPMI_WATCHDOG=m
CONFIG_IPMI_POWEROFF=m
CONFIG_HW_RANDOM=y
CONFIG_HW_RANDOM_TIMERIOMEM=m
CONFIG_HW_RANDOM_INTEL=m
CONFIG_HW_RANDOM_AMD=m
CONFIG_HW_RANDOM_VIA=m
CONFIG_HW_RANDOM_VIRTIO=m
CONFIG_HW_RANDOM_TPM=y
CONFIG_NVRAM=y
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
#
# PCMCIA character devices
#
# CONFIG_SYNCLINK_CS is not set
CONFIG_CARDMAN_4000=m
CONFIG_CARDMAN_4040=m
CONFIG_IPWIRELESS=m
# CONFIG_MWAVE is not set
CONFIG_RAW_DRIVER=y
CONFIG_MAX_RAW_DEVS=8192
CONFIG_HPET=y
# CONFIG_HPET_MMAP is not set
CONFIG_HANGCHECK_TIMER=m
CONFIG_TCG_TPM=y
CONFIG_TCG_TIS=y
# CONFIG_TCG_TIS_I2C_ATMEL is not set
# CONFIG_TCG_TIS_I2C_INFINEON is not set
# CONFIG_TCG_TIS_I2C_NUVOTON is not set
CONFIG_TCG_NSC=m
CONFIG_TCG_ATMEL=m
CONFIG_TCG_INFINEON=m
# CONFIG_TCG_ST33_I2C is not set
# CONFIG_TCG_XEN is not set
CONFIG_TELCLOCK=m
CONFIG_DEVPORT=y
CONFIG_I2C=m
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
CONFIG_I2C_CHARDEV=m
# CONFIG_I2C_MUX is not set
CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_SMBUS=m
CONFIG_I2C_ALGOBIT=m
CONFIG_I2C_ALGOPCA=m
#
# I2C Hardware Bus support
#
#
# PC SMBus host controller drivers
#
# CONFIG_I2C_ALI1535 is not set
# CONFIG_I2C_ALI1563 is not set
# CONFIG_I2C_ALI15X3 is not set
CONFIG_I2C_AMD756=m
CONFIG_I2C_AMD756_S4882=m
CONFIG_I2C_AMD8111=m
CONFIG_I2C_I801=m
CONFIG_I2C_ISCH=m
# CONFIG_I2C_ISMT is not set
CONFIG_I2C_PIIX4=m
CONFIG_I2C_NFORCE2=m
CONFIG_I2C_NFORCE2_S4985=m
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
CONFIG_I2C_SIS96X=m
CONFIG_I2C_VIA=m
CONFIG_I2C_VIAPRO=m
#
# ACPI drivers
#
# CONFIG_I2C_SCMI is not set
#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_CBUS_GPIO is not set
# CONFIG_I2C_DESIGNWARE_PLATFORM is not set
# CONFIG_I2C_DESIGNWARE_PCI is not set
# CONFIG_I2C_EG20T is not set
# CONFIG_I2C_GPIO is not set
# CONFIG_I2C_OCORES is not set
CONFIG_I2C_PCA_PLATFORM=m
# CONFIG_I2C_PXA_PCI is not set
CONFIG_I2C_SIMTEC=m
# CONFIG_I2C_XILINX is not set
#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_DIOLAN_U2C is not set
CONFIG_I2C_PARPORT=m
CONFIG_I2C_PARPORT_LIGHT=m
# CONFIG_I2C_ROBOTFUZZ_OSIF is not set
# CONFIG_I2C_TAOS_EVM is not set
CONFIG_I2C_TINY_USB=m
#
# Other I2C/SMBus bus drivers
#
CONFIG_I2C_STUB=m
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# CONFIG_SPI is not set
# CONFIG_HSI is not set
#
# PPS support
#
CONFIG_PPS=m
# CONFIG_PPS_DEBUG is not set
#
# PPS clients support
#
# CONFIG_PPS_CLIENT_KTIMER is not set
# CONFIG_PPS_CLIENT_LDISC is not set
# CONFIG_PPS_CLIENT_PARPORT is not set
# CONFIG_PPS_CLIENT_GPIO is not set
#
# PPS generators support
#
#
# PTP clock support
#
CONFIG_PTP_1588_CLOCK=m
#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
CONFIG_PTP_1588_CLOCK_PCH=m
CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
CONFIG_GPIOLIB=y
CONFIG_GPIO_DEVRES=y
CONFIG_GPIO_ACPI=y
# CONFIG_DEBUG_GPIO is not set
# CONFIG_GPIO_SYSFS is not set
#
# Memory mapped GPIO drivers:
#
# CONFIG_GPIO_GENERIC_PLATFORM is not set
# CONFIG_GPIO_IT8761E is not set
# CONFIG_GPIO_F7188X is not set
# CONFIG_GPIO_SCH311X is not set
# CONFIG_GPIO_TS5500 is not set
# CONFIG_GPIO_SCH is not set
# CONFIG_GPIO_ICH is not set
# CONFIG_GPIO_VX855 is not set
# CONFIG_GPIO_LYNXPOINT is not set
#
# I2C GPIO expanders:
#
# CONFIG_GPIO_MAX7300 is not set
# CONFIG_GPIO_MAX732X is not set
# CONFIG_GPIO_PCA953X is not set
# CONFIG_GPIO_PCF857X is not set
# CONFIG_GPIO_ADP5588 is not set
#
# PCI GPIO expanders:
#
# CONFIG_GPIO_BT8XX is not set
# CONFIG_GPIO_AMD8111 is not set
# CONFIG_GPIO_INTEL_MID is not set
# CONFIG_GPIO_PCH is not set
# CONFIG_GPIO_ML_IOH is not set
# CONFIG_GPIO_RDC321X is not set
#
# SPI GPIO expanders:
#
#
# AC97 GPIO expanders:
#
#
# LPC GPIO expanders:
#
#
# MODULbus GPIO expanders:
#
#
# USB GPIO expanders:
#
# CONFIG_W1 is not set
CONFIG_POWER_SUPPLY=y
# CONFIG_POWER_SUPPLY_DEBUG is not set
# CONFIG_PDA_POWER is not set
# CONFIG_TEST_POWER is not set
# CONFIG_BATTERY_DS2780 is not set
# CONFIG_BATTERY_DS2781 is not set
# CONFIG_BATTERY_DS2782 is not set
# CONFIG_BATTERY_SBS is not set
CONFIG_BATTERY_BQ27x00=m
CONFIG_BATTERY_BQ27X00_I2C=y
CONFIG_BATTERY_BQ27X00_PLATFORM=y
CONFIG_BATTERY_MAX17040=m
# CONFIG_BATTERY_MAX17042 is not set
# CONFIG_CHARGER_MAX8903 is not set
# CONFIG_CHARGER_LP8727 is not set
# CONFIG_CHARGER_GPIO is not set
# CONFIG_CHARGER_MANAGER is not set
# CONFIG_CHARGER_BQ2415X is not set
# CONFIG_CHARGER_BQ24190 is not set
# CONFIG_CHARGER_BQ24735 is not set
# CONFIG_CHARGER_SMB347 is not set
# CONFIG_POWER_RESET is not set
# CONFIG_POWER_AVS is not set
CONFIG_HWMON=m
CONFIG_HWMON_VID=m
# CONFIG_HWMON_DEBUG_CHIP is not set
#
# Native drivers
#
CONFIG_SENSORS_ABITUGURU=m
CONFIG_SENSORS_ABITUGURU3=m
CONFIG_SENSORS_AD7414=m
CONFIG_SENSORS_AD7418=m
CONFIG_SENSORS_ADM1021=m
CONFIG_SENSORS_ADM1025=m
CONFIG_SENSORS_ADM1026=m
CONFIG_SENSORS_ADM1029=m
CONFIG_SENSORS_ADM1031=m
CONFIG_SENSORS_ADM9240=m
# CONFIG_SENSORS_ADT7410 is not set
CONFIG_SENSORS_ADT7411=m
CONFIG_SENSORS_ADT7462=m
CONFIG_SENSORS_ADT7470=m
CONFIG_SENSORS_ADT7475=m
CONFIG_SENSORS_ASC7621=m
CONFIG_SENSORS_K8TEMP=m
CONFIG_SENSORS_K10TEMP=m
# CONFIG_SENSORS_FAM15H_POWER is not set
CONFIG_SENSORS_ASB100=m
CONFIG_SENSORS_ATXP1=m
CONFIG_SENSORS_DS620=m
CONFIG_SENSORS_DS1621=m
CONFIG_SENSORS_I5K_AMB=m
CONFIG_SENSORS_F71805F=m
CONFIG_SENSORS_F71882FG=m
CONFIG_SENSORS_F75375S=m
CONFIG_SENSORS_FSCHMD=m
CONFIG_SENSORS_G760A=m
# CONFIG_SENSORS_G762 is not set
CONFIG_SENSORS_GL518SM=m
CONFIG_SENSORS_GL520SM=m
CONFIG_SENSORS_GPIO_FAN=m
# CONFIG_SENSORS_HIH6130 is not set
# CONFIG_SENSORS_HTU21 is not set
CONFIG_SENSORS_CORETEMP=m
CONFIG_SENSORS_IBMAEM=m
CONFIG_SENSORS_IBMPEX=m
CONFIG_SENSORS_IT87=m
CONFIG_SENSORS_JC42=m
CONFIG_SENSORS_LINEAGE=m
CONFIG_SENSORS_LM63=m
CONFIG_SENSORS_LM73=m
CONFIG_SENSORS_LM75=m
CONFIG_SENSORS_LM77=m
CONFIG_SENSORS_LM78=m
CONFIG_SENSORS_LM80=m
CONFIG_SENSORS_LM83=m
CONFIG_SENSORS_LM85=m
CONFIG_SENSORS_LM87=m
CONFIG_SENSORS_LM90=m
CONFIG_SENSORS_LM92=m
CONFIG_SENSORS_LM93=m
CONFIG_SENSORS_LTC4151=m
CONFIG_SENSORS_LTC4215=m
CONFIG_SENSORS_LTC4245=m
CONFIG_SENSORS_LTC4261=m
# CONFIG_SENSORS_LM95234 is not set
CONFIG_SENSORS_LM95241=m
# CONFIG_SENSORS_LM95245 is not set
# CONFIG_SENSORS_MAX16065 is not set
CONFIG_SENSORS_MAX1619=m
# CONFIG_SENSORS_MAX1668 is not set
# CONFIG_SENSORS_MAX197 is not set
CONFIG_SENSORS_MAX6639=m
# CONFIG_SENSORS_MAX6642 is not set
CONFIG_SENSORS_MAX6650=m
# CONFIG_SENSORS_MAX6697 is not set
# CONFIG_SENSORS_MCP3021 is not set
# CONFIG_SENSORS_NCT6775 is not set
# CONFIG_SENSORS_NTC_THERMISTOR is not set
CONFIG_SENSORS_PC87360=m
CONFIG_SENSORS_PC87427=m
CONFIG_SENSORS_PCF8591=m
CONFIG_PMBUS=m
CONFIG_SENSORS_PMBUS=m
# CONFIG_SENSORS_ADM1275 is not set
# CONFIG_SENSORS_LM25066 is not set
# CONFIG_SENSORS_LTC2978 is not set
CONFIG_SENSORS_MAX16064=m
CONFIG_SENSORS_MAX34440=m
CONFIG_SENSORS_MAX8688=m
# CONFIG_SENSORS_UCD9000 is not set
# CONFIG_SENSORS_UCD9200 is not set
# CONFIG_SENSORS_ZL6100 is not set
CONFIG_SENSORS_SHT15=m
CONFIG_SENSORS_SHT21=m
CONFIG_SENSORS_SIS5595=m
CONFIG_SENSORS_SMM665=m
CONFIG_SENSORS_DME1737=m
CONFIG_SENSORS_EMC1403=m
CONFIG_SENSORS_EMC2103=m
# CONFIG_SENSORS_EMC6W201 is not set
CONFIG_SENSORS_SMSC47M1=m
CONFIG_SENSORS_SMSC47M192=m
CONFIG_SENSORS_SMSC47B397=m
CONFIG_SENSORS_SCH56XX_COMMON=m
CONFIG_SENSORS_SCH5627=m
# CONFIG_SENSORS_SCH5636 is not set
CONFIG_SENSORS_ADS1015=m
CONFIG_SENSORS_ADS7828=m
CONFIG_SENSORS_AMC6821=m
# CONFIG_SENSORS_INA209 is not set
# CONFIG_SENSORS_INA2XX is not set
CONFIG_SENSORS_THMC50=m
CONFIG_SENSORS_TMP102=m
CONFIG_SENSORS_TMP401=m
# CONFIG_SENSORS_TMP421 is not set
CONFIG_SENSORS_VIA_CPUTEMP=m
CONFIG_SENSORS_VIA686A=m
CONFIG_SENSORS_VT1211=m
CONFIG_SENSORS_VT8231=m
CONFIG_SENSORS_W83781D=m
CONFIG_SENSORS_W83791D=m
CONFIG_SENSORS_W83792D=m
CONFIG_SENSORS_W83793=m
# CONFIG_SENSORS_W83795 is not set
CONFIG_SENSORS_W83L785TS=m
CONFIG_SENSORS_W83L786NG=m
CONFIG_SENSORS_W83627HF=m
CONFIG_SENSORS_W83627EHF=m
CONFIG_SENSORS_APPLESMC=m
#
# ACPI drivers
#
# CONFIG_SENSORS_ACPI_POWER is not set
CONFIG_SENSORS_ATK0110=m
CONFIG_THERMAL=y
CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE=y
# CONFIG_THERMAL_DEFAULT_GOV_FAIR_SHARE is not set
# CONFIG_THERMAL_DEFAULT_GOV_USER_SPACE is not set
# CONFIG_THERMAL_GOV_FAIR_SHARE is not set
CONFIG_THERMAL_GOV_STEP_WISE=y
CONFIG_THERMAL_GOV_USER_SPACE=y
# CONFIG_THERMAL_EMULATION is not set
# CONFIG_INTEL_POWERCLAMP is not set
CONFIG_X86_PKG_TEMP_THERMAL=m
# CONFIG_ACPI_INT3403_THERMAL is not set
#
# Texas Instruments thermal drivers
#
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_CORE=y
# CONFIG_WATCHDOG_NOWAYOUT is not set
#
# Watchdog Device Drivers
#
CONFIG_SOFT_WATCHDOG=m
# CONFIG_DW_WATCHDOG is not set
# CONFIG_ACQUIRE_WDT is not set
# CONFIG_ADVANTECH_WDT is not set
CONFIG_ALIM1535_WDT=m
CONFIG_ALIM7101_WDT=m
# CONFIG_F71808E_WDT is not set
# CONFIG_SP5100_TCO is not set
# CONFIG_SC520_WDT is not set
CONFIG_SBC_FITPC2_WATCHDOG=m
# CONFIG_EUROTECH_WDT is not set
# CONFIG_IB700_WDT is not set
CONFIG_IBMASR=m
# CONFIG_WAFER_WDT is not set
CONFIG_I6300ESB_WDT=m
# CONFIG_IE6XX_WDT is not set
CONFIG_ITCO_WDT=m
CONFIG_ITCO_VENDOR_SUPPORT=y
CONFIG_IT8712F_WDT=m
CONFIG_IT87_WDT=m
CONFIG_HP_WATCHDOG=m
CONFIG_HPWDT_NMI_DECODING=y
# CONFIG_SC1200_WDT is not set
# CONFIG_PC87413_WDT is not set
# CONFIG_NV_TCO is not set
# CONFIG_60XX_WDT is not set
# CONFIG_SBC8360_WDT is not set
# CONFIG_CPU5_WDT is not set
CONFIG_SMSC_SCH311X_WDT=m
# CONFIG_SMSC37B787_WDT is not set
# CONFIG_VIA_WDT is not set
CONFIG_W83627HF_WDT=m
CONFIG_W83697HF_WDT=m
CONFIG_W83697UG_WDT=m
CONFIG_W83877F_WDT=m
CONFIG_W83977F_WDT=m
CONFIG_MACHZ_WDT=m
# CONFIG_SBC_EPX_C3_WATCHDOG is not set
# CONFIG_MEN_A21_WDT is not set
# CONFIG_XEN_WDT is not set
#
# PCI-based Watchdog Cards
#
CONFIG_PCIPCWATCHDOG=m
CONFIG_WDTPCI=m
#
# USB-based Watchdog Cards
#
CONFIG_USBPCWATCHDOG=m
CONFIG_SSB_POSSIBLE=y
#
# Sonics Silicon Backplane
#
CONFIG_SSB=m
CONFIG_SSB_SPROM=y
CONFIG_SSB_BLOCKIO=y
CONFIG_SSB_PCIHOST_POSSIBLE=y
CONFIG_SSB_PCIHOST=y
CONFIG_SSB_B43_PCI_BRIDGE=y
CONFIG_SSB_PCMCIAHOST_POSSIBLE=y
CONFIG_SSB_PCMCIAHOST=y
CONFIG_SSB_SDIOHOST_POSSIBLE=y
CONFIG_SSB_SDIOHOST=y
# CONFIG_SSB_DEBUG is not set
CONFIG_SSB_DRIVER_PCICORE_POSSIBLE=y
CONFIG_SSB_DRIVER_PCICORE=y
# CONFIG_SSB_DRIVER_GPIO is not set
CONFIG_BCMA_POSSIBLE=y
#
# Broadcom specific AMBA
#
# CONFIG_BCMA is not set
#
# Multifunction device drivers
#
CONFIG_MFD_CORE=m
# CONFIG_MFD_CS5535 is not set
# CONFIG_MFD_CROS_EC is not set
# CONFIG_MFD_MC13XXX_I2C is not set
# CONFIG_HTC_PASIC3 is not set
CONFIG_LPC_ICH=m
CONFIG_LPC_SCH=m
# CONFIG_MFD_JANZ_CMODIO is not set
# CONFIG_MFD_KEMPLD is not set
# CONFIG_MFD_VIPERBOARD is not set
# CONFIG_MFD_RETU is not set
# CONFIG_MFD_PCF50633 is not set
# CONFIG_UCB1400_CORE is not set
# CONFIG_MFD_RDC321X is not set
# CONFIG_MFD_RTSX_PCI is not set
# CONFIG_MFD_SI476X_CORE is not set
CONFIG_MFD_SM501=m
# CONFIG_MFD_SM501_GPIO is not set
# CONFIG_ABX500_CORE is not set
# CONFIG_MFD_SYSCON is not set
# CONFIG_MFD_TI_AM335X_TSCADC is not set
# CONFIG_MFD_LP3943 is not set
# CONFIG_TPS6105X is not set
# CONFIG_TPS65010 is not set
# CONFIG_TPS6507X is not set
# CONFIG_MFD_TPS65217 is not set
# CONFIG_MFD_TPS65912 is not set
# CONFIG_MFD_WL1273_CORE is not set
# CONFIG_MFD_LM3533 is not set
# CONFIG_MFD_TIMBERDALE is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_MFD_VX855 is not set
# CONFIG_MFD_ARIZONA_I2C is not set
CONFIG_REGULATOR=y
# CONFIG_REGULATOR_DEBUG is not set
CONFIG_REGULATOR_FIXED_VOLTAGE=m
# CONFIG_REGULATOR_VIRTUAL_CONSUMER is not set
CONFIG_REGULATOR_USERSPACE_CONSUMER=m
# CONFIG_REGULATOR_ACT8865 is not set
# CONFIG_REGULATOR_AD5398 is not set
# CONFIG_REGULATOR_DA9210 is not set
# CONFIG_REGULATOR_FAN53555 is not set
# CONFIG_REGULATOR_GPIO is not set
# CONFIG_REGULATOR_ISL6271A is not set
CONFIG_REGULATOR_LP3971=m
# CONFIG_REGULATOR_LP3972 is not set
# CONFIG_REGULATOR_LP872X is not set
# CONFIG_REGULATOR_LP8755 is not set
CONFIG_REGULATOR_MAX1586=m
# CONFIG_REGULATOR_MAX8649 is not set
# CONFIG_REGULATOR_MAX8660 is not set
# CONFIG_REGULATOR_MAX8952 is not set
# CONFIG_REGULATOR_MAX8973 is not set
# CONFIG_REGULATOR_PFUZE100 is not set
# CONFIG_REGULATOR_TPS51632 is not set
# CONFIG_REGULATOR_TPS62360 is not set
CONFIG_REGULATOR_TPS65023=m
CONFIG_REGULATOR_TPS6507X=m
CONFIG_MEDIA_SUPPORT=m
#
# Multimedia core support
#
# CONFIG_MEDIA_CAMERA_SUPPORT is not set
# CONFIG_MEDIA_ANALOG_TV_SUPPORT is not set
# CONFIG_MEDIA_DIGITAL_TV_SUPPORT is not set
# CONFIG_MEDIA_RADIO_SUPPORT is not set
# CONFIG_MEDIA_RC_SUPPORT is not set
# CONFIG_VIDEO_ADV_DEBUG is not set
# CONFIG_VIDEO_FIXED_MINOR_RANGES is not set
# CONFIG_TTPCI_EEPROM is not set
#
# Media drivers
#
# CONFIG_MEDIA_USB_SUPPORT is not set
# CONFIG_MEDIA_PCI_SUPPORT is not set
#
# Supported MMC/SDIO adapters
#
# CONFIG_CYPRESS_FIRMWARE is not set
#
# Media ancillary drivers (tuners, sensors, i2c, frontends)
#
#
# Customise DVB Frontends
#
CONFIG_DVB_TUNER_DIB0070=m
CONFIG_DVB_TUNER_DIB0090=m
#
# Tools to develop new frontends
#
# CONFIG_DVB_DUMMY_FE is not set
#
# Graphics support
#
CONFIG_AGP=y
CONFIG_AGP_AMD64=y
CONFIG_AGP_INTEL=y
CONFIG_AGP_SIS=y
CONFIG_AGP_VIA=y
CONFIG_INTEL_GTT=y
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=64
# CONFIG_VGA_SWITCHEROO is not set
CONFIG_DRM=m
CONFIG_DRM_KMS_HELPER=m
CONFIG_DRM_KMS_FB_HELPER=y
# CONFIG_DRM_LOAD_EDID_FIRMWARE is not set
CONFIG_DRM_TTM=m
#
# I2C encoder or helper chips
#
CONFIG_DRM_I2C_CH7006=m
CONFIG_DRM_I2C_SIL164=m
# CONFIG_DRM_I2C_NXP_TDA998X is not set
# CONFIG_DRM_TDFX is not set
CONFIG_DRM_R128=m
CONFIG_DRM_RADEON=m
# CONFIG_DRM_RADEON_UMS is not set
CONFIG_DRM_NOUVEAU=m
CONFIG_NOUVEAU_DEBUG=5
CONFIG_NOUVEAU_DEBUG_DEFAULT=3
CONFIG_DRM_NOUVEAU_BACKLIGHT=y
# CONFIG_DRM_I810 is not set
CONFIG_DRM_I915=m
CONFIG_DRM_I915_KMS=y
CONFIG_DRM_I915_FBDEV=y
# CONFIG_DRM_I915_PRELIMINARY_HW_SUPPORT is not set
# CONFIG_DRM_I915_UMS is not set
CONFIG_DRM_MGA=m
# CONFIG_DRM_SIS is not set
CONFIG_DRM_VIA=m
CONFIG_DRM_SAVAGE=m
# CONFIG_DRM_VMWGFX is not set
# CONFIG_DRM_GMA500 is not set
# CONFIG_DRM_UDL is not set
# CONFIG_DRM_AST is not set
# CONFIG_DRM_MGAG200 is not set
# CONFIG_DRM_CIRRUS_QEMU is not set
# CONFIG_DRM_QXL is not set
# CONFIG_DRM_BOCHS is not set
CONFIG_VGASTATE=m
CONFIG_VIDEO_OUTPUT_CONTROL=m
CONFIG_HDMI=y
CONFIG_FB=y
# CONFIG_FIRMWARE_EDID is not set
CONFIG_FB_DDC=m
CONFIG_FB_BOOT_VESA_SUPPORT=y
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
CONFIG_FB_SYS_FILLRECT=y
CONFIG_FB_SYS_COPYAREA=y
CONFIG_FB_SYS_IMAGEBLIT=y
# CONFIG_FB_FOREIGN_ENDIAN is not set
CONFIG_FB_SYS_FOPS=y
CONFIG_FB_DEFERRED_IO=y
# CONFIG_FB_SVGALIB is not set
# CONFIG_FB_MACMODES is not set
CONFIG_FB_BACKLIGHT=y
CONFIG_FB_MODE_HELPERS=y
CONFIG_FB_TILEBLITTING=y
#
# Frame buffer hardware drivers
#
CONFIG_FB_CIRRUS=m
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ARC is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
CONFIG_FB_VGA16=m
# CONFIG_FB_UVESA is not set
CONFIG_FB_VESA=y
CONFIG_FB_EFI=y
# CONFIG_FB_N411 is not set
# CONFIG_FB_HGA is not set
# CONFIG_FB_OPENCORES is not set
# CONFIG_FB_S1D13XXX is not set
CONFIG_FB_NVIDIA=m
CONFIG_FB_NVIDIA_I2C=y
# CONFIG_FB_NVIDIA_DEBUG is not set
CONFIG_FB_NVIDIA_BACKLIGHT=y
CONFIG_FB_RIVA=m
# CONFIG_FB_RIVA_I2C is not set
# CONFIG_FB_RIVA_DEBUG is not set
CONFIG_FB_RIVA_BACKLIGHT=y
# CONFIG_FB_I740 is not set
# CONFIG_FB_LE80578 is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
CONFIG_FB_SAVAGE=m
CONFIG_FB_SAVAGE_I2C=y
CONFIG_FB_SAVAGE_ACCEL=y
# CONFIG_FB_SIS is not set
CONFIG_FB_VIA=m
# CONFIG_FB_VIA_DIRECT_PROCFS is not set
# CONFIG_FB_VIA_X_COMPATIBILITY is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_VT8623 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_CARMINE is not set
# CONFIG_FB_TMIO is not set
CONFIG_FB_SM501=m
# CONFIG_FB_SMSCUFX is not set
# CONFIG_FB_UDL is not set
# CONFIG_FB_GOLDFISH is not set
CONFIG_FB_VIRTUAL=m
CONFIG_XEN_FBDEV_FRONTEND=y
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
# CONFIG_FB_BROADSHEET is not set
# CONFIG_FB_AUO_K190X is not set
# CONFIG_FB_SIMPLE is not set
# CONFIG_EXYNOS_VIDEO is not set
CONFIG_BACKLIGHT_LCD_SUPPORT=y
CONFIG_LCD_CLASS_DEVICE=m
CONFIG_LCD_PLATFORM=m
CONFIG_BACKLIGHT_CLASS_DEVICE=y
# CONFIG_BACKLIGHT_GENERIC is not set
# CONFIG_BACKLIGHT_APPLE is not set
# CONFIG_BACKLIGHT_SAHARA is not set
# CONFIG_BACKLIGHT_ADP8860 is not set
# CONFIG_BACKLIGHT_ADP8870 is not set
# CONFIG_BACKLIGHT_LM3630A is not set
# CONFIG_BACKLIGHT_LM3639 is not set
# CONFIG_BACKLIGHT_LP855X is not set
# CONFIG_BACKLIGHT_GPIO is not set
# CONFIG_BACKLIGHT_LV5207LP is not set
# CONFIG_BACKLIGHT_BD6107 is not set
#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
CONFIG_VGACON_SOFT_SCROLLBACK=y
CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=64
CONFIG_DUMMY_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_MONO is not set
# CONFIG_LOGO_LINUX_VGA16 is not set
CONFIG_LOGO_LINUX_CLUT224=y
CONFIG_SOUND=m
CONFIG_SOUND_OSS_CORE=y
CONFIG_SOUND_OSS_CORE_PRECLAIM=y
CONFIG_SND=m
CONFIG_SND_TIMER=m
CONFIG_SND_PCM=m
CONFIG_SND_HWDEP=m
CONFIG_SND_RAWMIDI=m
CONFIG_SND_JACK=y
CONFIG_SND_SEQUENCER=m
CONFIG_SND_SEQ_DUMMY=m
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
CONFIG_SND_PCM_OSS_PLUGINS=y
CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_HRTIMER=m
CONFIG_SND_SEQ_HRTIMER_DEFAULT=y
CONFIG_SND_DYNAMIC_MINORS=y
CONFIG_SND_MAX_CARDS=32
# CONFIG_SND_SUPPORT_OLD_API is not set
CONFIG_SND_VERBOSE_PROCFS=y
CONFIG_SND_VERBOSE_PRINTK=y
CONFIG_SND_DEBUG=y
# CONFIG_SND_DEBUG_VERBOSE is not set
CONFIG_SND_PCM_XRUN_DEBUG=y
CONFIG_SND_VMASTER=y
CONFIG_SND_KCTL_JACK=y
CONFIG_SND_DMA_SGBUF=y
CONFIG_SND_RAWMIDI_SEQ=m
CONFIG_SND_OPL3_LIB_SEQ=m
# CONFIG_SND_OPL4_LIB_SEQ is not set
# CONFIG_SND_SBAWE_SEQ is not set
CONFIG_SND_EMU10K1_SEQ=m
CONFIG_SND_MPU401_UART=m
CONFIG_SND_OPL3_LIB=m
CONFIG_SND_VX_LIB=m
CONFIG_SND_AC97_CODEC=m
CONFIG_SND_DRIVERS=y
CONFIG_SND_PCSP=m
CONFIG_SND_DUMMY=m
CONFIG_SND_ALOOP=m
CONFIG_SND_VIRMIDI=m
CONFIG_SND_MTPAV=m
# CONFIG_SND_MTS64 is not set
# CONFIG_SND_SERIAL_U16550 is not set
CONFIG_SND_MPU401=m
# CONFIG_SND_PORTMAN2X4 is not set
CONFIG_SND_AC97_POWER_SAVE=y
CONFIG_SND_AC97_POWER_SAVE_DEFAULT=5
CONFIG_SND_SB_COMMON=m
CONFIG_SND_SB16_DSP=m
CONFIG_SND_PCI=y
CONFIG_SND_AD1889=m
# CONFIG_SND_ALS300 is not set
# CONFIG_SND_ALS4000 is not set
CONFIG_SND_ALI5451=m
# CONFIG_SND_ASIHPI is not set
CONFIG_SND_ATIIXP=m
CONFIG_SND_ATIIXP_MODEM=m
CONFIG_SND_AU8810=m
CONFIG_SND_AU8820=m
CONFIG_SND_AU8830=m
# CONFIG_SND_AW2 is not set
# CONFIG_SND_AZT3328 is not set
CONFIG_SND_BT87X=m
# CONFIG_SND_BT87X_OVERCLOCK is not set
CONFIG_SND_CA0106=m
# CONFIG_SND_CMIPCI is not set
CONFIG_SND_OXYGEN_LIB=m
CONFIG_SND_OXYGEN=m
# CONFIG_SND_CS4281 is not set
CONFIG_SND_CS46XX=m
CONFIG_SND_CS46XX_NEW_DSP=y
CONFIG_SND_CS5530=m
CONFIG_SND_CS5535AUDIO=m
CONFIG_SND_CTXFI=m
CONFIG_SND_DARLA20=m
CONFIG_SND_GINA20=m
CONFIG_SND_LAYLA20=m
CONFIG_SND_DARLA24=m
CONFIG_SND_GINA24=m
CONFIG_SND_LAYLA24=m
CONFIG_SND_MONA=m
CONFIG_SND_MIA=m
CONFIG_SND_ECHO3G=m
CONFIG_SND_INDIGO=m
CONFIG_SND_INDIGOIO=m
CONFIG_SND_INDIGODJ=m
CONFIG_SND_INDIGOIOX=m
CONFIG_SND_INDIGODJX=m
CONFIG_SND_EMU10K1=m
CONFIG_SND_EMU10K1X=m
CONFIG_SND_ENS1370=m
CONFIG_SND_ENS1371=m
CONFIG_SND_ES1938=m
CONFIG_SND_ES1968=m
CONFIG_SND_ES1968_INPUT=y
CONFIG_SND_FM801=m
CONFIG_SND_HDA_INTEL=m
CONFIG_SND_HDA_PREALLOC_SIZE=64
CONFIG_SND_HDA_HWDEP=y
CONFIG_SND_HDA_RECONFIG=y
CONFIG_SND_HDA_INPUT_BEEP=y
CONFIG_SND_HDA_INPUT_BEEP_MODE=1
CONFIG_SND_HDA_INPUT_JACK=y
# CONFIG_SND_HDA_PATCH_LOADER is not set
CONFIG_SND_HDA_CODEC_REALTEK=m
CONFIG_SND_HDA_CODEC_ANALOG=m
CONFIG_SND_HDA_CODEC_SIGMATEL=m
CONFIG_SND_HDA_CODEC_VIA=m
CONFIG_SND_HDA_CODEC_HDMI=m
CONFIG_SND_HDA_I915=y
CONFIG_SND_HDA_CODEC_CIRRUS=m
CONFIG_SND_HDA_CODEC_CONEXANT=m
CONFIG_SND_HDA_CODEC_CA0110=m
CONFIG_SND_HDA_CODEC_CA0132=m
# CONFIG_SND_HDA_CODEC_CA0132_DSP is not set
CONFIG_SND_HDA_CODEC_CMEDIA=m
CONFIG_SND_HDA_CODEC_SI3054=m
CONFIG_SND_HDA_GENERIC=m
CONFIG_SND_HDA_POWER_SAVE_DEFAULT=0
CONFIG_SND_HDSP=m
CONFIG_SND_HDSPM=m
CONFIG_SND_ICE1712=m
CONFIG_SND_ICE1724=m
CONFIG_SND_INTEL8X0=m
CONFIG_SND_INTEL8X0M=m
CONFIG_SND_KORG1212=m
# CONFIG_SND_LOLA is not set
CONFIG_SND_LX6464ES=m
CONFIG_SND_MAESTRO3=m
CONFIG_SND_MAESTRO3_INPUT=y
CONFIG_SND_MIXART=m
CONFIG_SND_NM256=m
CONFIG_SND_PCXHR=m
CONFIG_SND_RIPTIDE=m
CONFIG_SND_RME32=m
CONFIG_SND_RME96=m
CONFIG_SND_RME9652=m
CONFIG_SND_SONICVIBES=m
CONFIG_SND_TRIDENT=m
CONFIG_SND_VIA82XX=m
CONFIG_SND_VIA82XX_MODEM=m
CONFIG_SND_VIRTUOSO=m
CONFIG_SND_VX222=m
CONFIG_SND_YMFPCI=m
CONFIG_SND_USB=y
CONFIG_SND_USB_AUDIO=m
CONFIG_SND_USB_UA101=m
CONFIG_SND_USB_USX2Y=m
CONFIG_SND_USB_CAIAQ=m
CONFIG_SND_USB_CAIAQ_INPUT=y
CONFIG_SND_USB_US122L=m
CONFIG_SND_USB_6FIRE=m
# CONFIG_SND_USB_HIFACE is not set
CONFIG_SND_FIREWIRE=y
CONFIG_SND_FIREWIRE_LIB=m
# CONFIG_SND_DICE is not set
CONFIG_SND_FIREWIRE_SPEAKERS=m
# CONFIG_SND_ISIGHT is not set
# CONFIG_SND_SCS1X is not set
CONFIG_SND_PCMCIA=y
CONFIG_SND_VXPOCKET=m
CONFIG_SND_PDAUDIOCF=m
# CONFIG_SND_SOC is not set
# CONFIG_SOUND_PRIME is not set
CONFIG_AC97_BUS=m
#
# HID support
#
CONFIG_HID=y
# CONFIG_HID_BATTERY_STRENGTH is not set
CONFIG_HIDRAW=y
# CONFIG_UHID is not set
CONFIG_HID_GENERIC=y
#
# Special HID drivers
#
CONFIG_HID_A4TECH=y
CONFIG_HID_ACRUX=m
# CONFIG_HID_ACRUX_FF is not set
CONFIG_HID_APPLE=y
# CONFIG_HID_APPLEIR is not set
# CONFIG_HID_AUREAL is not set
CONFIG_HID_BELKIN=y
CONFIG_HID_CHERRY=y
CONFIG_HID_CHICONY=y
CONFIG_HID_PRODIKEYS=m
CONFIG_HID_CYPRESS=y
CONFIG_HID_DRAGONRISE=y
CONFIG_DRAGONRISE_FF=y
CONFIG_HID_EMS_FF=m
CONFIG_HID_ELECOM=m
# CONFIG_HID_ELO is not set
CONFIG_HID_EZKEY=y
# CONFIG_HID_HOLTEK is not set
# CONFIG_HID_HUION is not set
CONFIG_HID_KEYTOUCH=m
CONFIG_HID_KYE=y
CONFIG_HID_UCLOGIC=m
CONFIG_HID_WALTOP=m
CONFIG_HID_GYRATION=y
# CONFIG_HID_ICADE is not set
CONFIG_HID_TWINHAN=y
CONFIG_HID_KENSINGTON=y
CONFIG_HID_LCPOWER=m
# CONFIG_HID_LENOVO_TPKBD is not set
CONFIG_HID_LOGITECH=y
# CONFIG_HID_LOGITECH_DJ is not set
CONFIG_LOGITECH_FF=y
CONFIG_LOGIRUMBLEPAD2_FF=y
CONFIG_LOGIG940_FF=y
CONFIG_LOGIWHEELS_FF=y
CONFIG_HID_MAGICMOUSE=m
CONFIG_HID_MICROSOFT=y
CONFIG_HID_MONTEREY=y
CONFIG_HID_MULTITOUCH=m
CONFIG_HID_NTRIG=y
CONFIG_HID_ORTEK=m
CONFIG_HID_PANTHERLORD=y
CONFIG_PANTHERLORD_FF=y
CONFIG_HID_PETALYNX=y
CONFIG_HID_PICOLCD=m
CONFIG_HID_PICOLCD_FB=y
CONFIG_HID_PICOLCD_BACKLIGHT=y
CONFIG_HID_PICOLCD_LCD=y
CONFIG_HID_PICOLCD_LEDS=y
# CONFIG_HID_PRIMAX is not set
CONFIG_HID_ROCCAT=m
# CONFIG_HID_SAITEK is not set
CONFIG_HID_SAMSUNG=y
CONFIG_HID_SONY=y
# CONFIG_SONY_FF is not set
# CONFIG_HID_SPEEDLINK is not set
# CONFIG_HID_STEELSERIES is not set
CONFIG_HID_SUNPLUS=y
CONFIG_HID_GREENASIA=y
CONFIG_GREENASIA_FF=y
CONFIG_HID_SMARTJOYPLUS=y
CONFIG_SMARTJOYPLUS_FF=y
# CONFIG_HID_TIVO is not set
CONFIG_HID_TOPSEED=y
# CONFIG_HID_THINGM is not set
CONFIG_HID_THRUSTMASTER=y
CONFIG_THRUSTMASTER_FF=y
CONFIG_HID_WACOM=m
# CONFIG_HID_WIIMOTE is not set
# CONFIG_HID_XINMO is not set
CONFIG_HID_ZEROPLUS=y
CONFIG_ZEROPLUS_FF=y
CONFIG_HID_ZYDACRON=m
# CONFIG_HID_SENSOR_HUB is not set
#
# USB HID support
#
CONFIG_USB_HID=y
CONFIG_HID_PID=y
CONFIG_USB_HIDDEV=y
#
# I2C HID support
#
# CONFIG_I2C_HID is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_SUPPORT=y
CONFIG_USB_COMMON=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB=y
# CONFIG_USB_DEBUG is not set
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
#
# Miscellaneous USB options
#
CONFIG_USB_DEFAULT_PERSIST=y
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_OTG is not set
CONFIG_USB_MON=y
CONFIG_USB_WUSB=m
CONFIG_USB_WUSB_CBAF=m
# CONFIG_USB_WUSB_CBAF_DEBUG is not set
#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
CONFIG_USB_XHCI_HCD=m
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_ROOT_HUB_TT=y
CONFIG_USB_EHCI_TT_NEWSCHED=y
CONFIG_USB_EHCI_PCI=y
# CONFIG_USB_EHCI_HCD_PLATFORM is not set
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_ISP1760_HCD is not set
CONFIG_USB_ISP1362_HCD=m
# CONFIG_USB_FUSBH200_HCD is not set
# CONFIG_USB_FOTG210_HCD is not set
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_OHCI_HCD_PCI=y
# CONFIG_USB_OHCI_HCD_PLATFORM is not set
CONFIG_USB_UHCI_HCD=y
CONFIG_USB_U132_HCD=m
CONFIG_USB_SL811_HCD=m
# CONFIG_USB_SL811_HCD_ISO is not set
# CONFIG_USB_SL811_CS is not set
# CONFIG_USB_R8A66597_HCD is not set
CONFIG_USB_WHCI_HCD=m
CONFIG_USB_HWA_HCD=m
# CONFIG_USB_HCD_SSB is not set
# CONFIG_USB_HCD_TEST_MODE is not set
#
# USB Device Class drivers
#
CONFIG_USB_ACM=m
CONFIG_USB_PRINTER=m
CONFIG_USB_WDM=m
CONFIG_USB_TMC=m
#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#
#
# also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=m
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_REALTEK is not set
CONFIG_USB_STORAGE_DATAFAB=m
CONFIG_USB_STORAGE_FREECOM=m
CONFIG_USB_STORAGE_ISD200=m
CONFIG_USB_STORAGE_USBAT=m
CONFIG_USB_STORAGE_SDDR09=m
CONFIG_USB_STORAGE_SDDR55=m
CONFIG_USB_STORAGE_JUMPSHOT=m
CONFIG_USB_STORAGE_ALAUDA=m
CONFIG_USB_STORAGE_ONETOUCH=m
CONFIG_USB_STORAGE_KARMA=m
CONFIG_USB_STORAGE_CYPRESS_ATACB=m
# CONFIG_USB_STORAGE_ENE_UB6250 is not set
#
# USB Imaging devices
#
CONFIG_USB_MDC800=m
CONFIG_USB_MICROTEK=m
# CONFIG_USB_MUSB_HDRC is not set
# CONFIG_USB_DWC3 is not set
# CONFIG_USB_DWC2 is not set
# CONFIG_USB_CHIPIDEA is not set
#
# USB port drivers
#
CONFIG_USB_USS720=m
CONFIG_USB_SERIAL=m
CONFIG_USB_SERIAL_GENERIC=y
# CONFIG_USB_SERIAL_SIMPLE is not set
CONFIG_USB_SERIAL_AIRCABLE=m
CONFIG_USB_SERIAL_ARK3116=m
CONFIG_USB_SERIAL_BELKIN=m
CONFIG_USB_SERIAL_CH341=m
CONFIG_USB_SERIAL_WHITEHEAT=m
CONFIG_USB_SERIAL_DIGI_ACCELEPORT=m
CONFIG_USB_SERIAL_CP210X=m
CONFIG_USB_SERIAL_CYPRESS_M8=m
CONFIG_USB_SERIAL_EMPEG=m
CONFIG_USB_SERIAL_FTDI_SIO=m
CONFIG_USB_SERIAL_VISOR=m
CONFIG_USB_SERIAL_IPAQ=m
CONFIG_USB_SERIAL_IR=m
CONFIG_USB_SERIAL_EDGEPORT=m
CONFIG_USB_SERIAL_EDGEPORT_TI=m
# CONFIG_USB_SERIAL_F81232 is not set
CONFIG_USB_SERIAL_GARMIN=m
CONFIG_USB_SERIAL_IPW=m
CONFIG_USB_SERIAL_IUU=m
CONFIG_USB_SERIAL_KEYSPAN_PDA=m
CONFIG_USB_SERIAL_KEYSPAN=m
CONFIG_USB_SERIAL_KLSI=m
CONFIG_USB_SERIAL_KOBIL_SCT=m
CONFIG_USB_SERIAL_MCT_U232=m
# CONFIG_USB_SERIAL_METRO is not set
CONFIG_USB_SERIAL_MOS7720=m
# CONFIG_USB_SERIAL_MOS7715_PARPORT is not set
CONFIG_USB_SERIAL_MOS7840=m
# CONFIG_USB_SERIAL_MXUPORT is not set
CONFIG_USB_SERIAL_NAVMAN=m
CONFIG_USB_SERIAL_PL2303=m
CONFIG_USB_SERIAL_OTI6858=m
# CONFIG_USB_SERIAL_QCAUX is not set
CONFIG_USB_SERIAL_QUALCOMM=m
CONFIG_USB_SERIAL_SPCP8X5=m
CONFIG_USB_SERIAL_SAFE=m
CONFIG_USB_SERIAL_SAFE_PADDED=y
CONFIG_USB_SERIAL_SIERRAWIRELESS=m
CONFIG_USB_SERIAL_SYMBOL=m
CONFIG_USB_SERIAL_TI=m
CONFIG_USB_SERIAL_CYBERJACK=m
CONFIG_USB_SERIAL_XIRCOM=m
CONFIG_USB_SERIAL_WWAN=m
CONFIG_USB_SERIAL_OPTION=m
CONFIG_USB_SERIAL_OMNINET=m
CONFIG_USB_SERIAL_OPTICON=m
# CONFIG_USB_SERIAL_XSENS_MT is not set
# CONFIG_USB_SERIAL_WISHBONE is not set
# CONFIG_USB_SERIAL_ZTE is not set
# CONFIG_USB_SERIAL_SSU100 is not set
# CONFIG_USB_SERIAL_QT2 is not set
CONFIG_USB_SERIAL_DEBUG=m
#
# USB Miscellaneous drivers
#
CONFIG_USB_EMI62=m
CONFIG_USB_EMI26=m
CONFIG_USB_ADUTUX=m
CONFIG_USB_SEVSEG=m
# CONFIG_USB_RIO500 is not set
CONFIG_USB_LEGOTOWER=m
CONFIG_USB_LCD=m
CONFIG_USB_LED=m
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
CONFIG_USB_IDMOUSE=m
CONFIG_USB_FTDI_ELAN=m
CONFIG_USB_APPLEDISPLAY=m
CONFIG_USB_SISUSBVGA=m
CONFIG_USB_SISUSBVGA_CON=y
CONFIG_USB_LD=m
# CONFIG_USB_TRANCEVIBRATOR is not set
CONFIG_USB_IOWARRIOR=m
# CONFIG_USB_TEST is not set
# CONFIG_USB_EHSET_TEST_FIXTURE is not set
CONFIG_USB_ISIGHTFW=m
# CONFIG_USB_YUREX is not set
CONFIG_USB_EZUSB_FX2=m
# CONFIG_USB_HSIC_USB3503 is not set
CONFIG_USB_ATM=m
CONFIG_USB_SPEEDTOUCH=m
CONFIG_USB_CXACRU=m
CONFIG_USB_UEAGLEATM=m
CONFIG_USB_XUSBATM=m
#
# USB Physical Layer drivers
#
# CONFIG_USB_PHY is not set
# CONFIG_USB_OTG_FSM is not set
# CONFIG_NOP_USB_XCEIV is not set
# CONFIG_SAMSUNG_USB2PHY is not set
# CONFIG_SAMSUNG_USB3PHY is not set
# CONFIG_USB_GPIO_VBUS is not set
# CONFIG_USB_ISP1301 is not set
# CONFIG_USB_RCAR_PHY is not set
# CONFIG_USB_GADGET is not set
CONFIG_UWB=m
CONFIG_UWB_HWA=m
CONFIG_UWB_WHCI=m
CONFIG_UWB_I1480U=m
CONFIG_MMC=m
# CONFIG_MMC_DEBUG is not set
# CONFIG_MMC_UNSAFE_RESUME is not set
# CONFIG_MMC_CLKGATE is not set
#
# MMC/SD/SDIO Card Drivers
#
CONFIG_MMC_BLOCK=m
CONFIG_MMC_BLOCK_MINORS=8
CONFIG_MMC_BLOCK_BOUNCE=y
CONFIG_SDIO_UART=m
# CONFIG_MMC_TEST is not set
#
# MMC/SD/SDIO Host Controller Drivers
#
CONFIG_MMC_SDHCI=m
CONFIG_MMC_SDHCI_PCI=m
# CONFIG_MMC_RICOH_MMC is not set
# CONFIG_MMC_SDHCI_ACPI is not set
CONFIG_MMC_SDHCI_PLTFM=m
CONFIG_MMC_WBSD=m
CONFIG_MMC_TIFM_SD=m
CONFIG_MMC_SDRICOH_CS=m
CONFIG_MMC_CB710=m
CONFIG_MMC_VIA_SDMMC=m
# CONFIG_MMC_VUB300 is not set
CONFIG_MMC_USHC=m
CONFIG_MEMSTICK=m
# CONFIG_MEMSTICK_DEBUG is not set
#
# MemoryStick drivers
#
# CONFIG_MEMSTICK_UNSAFE_RESUME is not set
CONFIG_MSPRO_BLOCK=m
# CONFIG_MS_BLOCK is not set
#
# MemoryStick Host Controller Drivers
#
CONFIG_MEMSTICK_TIFM_MS=m
CONFIG_MEMSTICK_JMICRON_38X=m
# CONFIG_MEMSTICK_R592 is not set
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
#
# LED drivers
#
# CONFIG_LEDS_LM3530 is not set
# CONFIG_LEDS_LM3642 is not set
# CONFIG_LEDS_PCA9532 is not set
# CONFIG_LEDS_GPIO is not set
CONFIG_LEDS_LP3944=m
# CONFIG_LEDS_LP5521 is not set
# CONFIG_LEDS_LP5523 is not set
# CONFIG_LEDS_LP5562 is not set
# CONFIG_LEDS_LP8501 is not set
CONFIG_LEDS_CLEVO_MAIL=m
# CONFIG_LEDS_PCA955X is not set
# CONFIG_LEDS_PCA963X is not set
# CONFIG_LEDS_PCA9685 is not set
# CONFIG_LEDS_REGULATOR is not set
# CONFIG_LEDS_BD2802 is not set
# CONFIG_LEDS_INTEL_SS4200 is not set
# CONFIG_LEDS_LT3593 is not set
# CONFIG_LEDS_DELL_NETBOOKS is not set
# CONFIG_LEDS_TCA6507 is not set
# CONFIG_LEDS_LM355x is not set
# CONFIG_LEDS_OT200 is not set
# CONFIG_LEDS_BLINKM is not set
#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_TIMER=m
# CONFIG_LEDS_TRIGGER_ONESHOT is not set
CONFIG_LEDS_TRIGGER_HEARTBEAT=m
CONFIG_LEDS_TRIGGER_BACKLIGHT=m
# CONFIG_LEDS_TRIGGER_CPU is not set
# CONFIG_LEDS_TRIGGER_GPIO is not set
CONFIG_LEDS_TRIGGER_DEFAULT_ON=m
#
# iptables trigger is under Netfilter config (LED target)
#
# CONFIG_LEDS_TRIGGER_TRANSIENT is not set
# CONFIG_LEDS_TRIGGER_CAMERA is not set
# CONFIG_ACCESSIBILITY is not set
CONFIG_INFINIBAND=m
CONFIG_INFINIBAND_USER_MAD=m
CONFIG_INFINIBAND_USER_ACCESS=m
CONFIG_INFINIBAND_USER_MEM=y
CONFIG_INFINIBAND_ADDR_TRANS=y
CONFIG_INFINIBAND_MTHCA=m
CONFIG_INFINIBAND_MTHCA_DEBUG=y
CONFIG_INFINIBAND_IPATH=m
CONFIG_INFINIBAND_QIB=m
CONFIG_INFINIBAND_QIB_DCA=y
# CONFIG_INFINIBAND_AMSO1100 is not set
CONFIG_INFINIBAND_CXGB3=m
# CONFIG_INFINIBAND_CXGB3_DEBUG is not set
CONFIG_INFINIBAND_CXGB4=m
CONFIG_MLX4_INFINIBAND=m
# CONFIG_MLX5_INFINIBAND is not set
CONFIG_INFINIBAND_NES=m
# CONFIG_INFINIBAND_NES_DEBUG is not set
# CONFIG_INFINIBAND_OCRDMA is not set
CONFIG_INFINIBAND_IPOIB=m
CONFIG_INFINIBAND_IPOIB_CM=y
CONFIG_INFINIBAND_IPOIB_DEBUG=y
# CONFIG_INFINIBAND_IPOIB_DEBUG_DATA is not set
CONFIG_INFINIBAND_SRP=m
# CONFIG_INFINIBAND_SRPT is not set
CONFIG_INFINIBAND_ISER=m
CONFIG_EDAC=y
CONFIG_EDAC_LEGACY_SYSFS=y
# CONFIG_EDAC_DEBUG is not set
CONFIG_EDAC_DECODE_MCE=m
# CONFIG_EDAC_MCE_INJ is not set
CONFIG_EDAC_MM_EDAC=m
CONFIG_EDAC_AMD64=m
# CONFIG_EDAC_AMD64_ERROR_INJECTION is not set
CONFIG_EDAC_E752X=m
CONFIG_EDAC_I82975X=m
CONFIG_EDAC_I3000=m
CONFIG_EDAC_I3200=m
CONFIG_EDAC_X38=m
CONFIG_EDAC_I5400=m
CONFIG_EDAC_I7CORE=m
CONFIG_EDAC_I5000=m
CONFIG_EDAC_I5100=m
CONFIG_EDAC_I7300=m
# CONFIG_EDAC_SBRIDGE is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_SYSTOHC=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set
#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set
#
# I2C RTC drivers
#
CONFIG_RTC_DRV_DS1307=m
CONFIG_RTC_DRV_DS1374=m
CONFIG_RTC_DRV_DS1672=m
# CONFIG_RTC_DRV_DS3232 is not set
CONFIG_RTC_DRV_MAX6900=m
CONFIG_RTC_DRV_RS5C372=m
CONFIG_RTC_DRV_ISL1208=m
# CONFIG_RTC_DRV_ISL12022 is not set
# CONFIG_RTC_DRV_ISL12057 is not set
CONFIG_RTC_DRV_X1205=m
# CONFIG_RTC_DRV_PCF2127 is not set
# CONFIG_RTC_DRV_PCF8523 is not set
CONFIG_RTC_DRV_PCF8563=m
CONFIG_RTC_DRV_PCF8583=m
CONFIG_RTC_DRV_M41T80=m
CONFIG_RTC_DRV_M41T80_WDT=y
# CONFIG_RTC_DRV_BQ32K is not set
# CONFIG_RTC_DRV_S35390A is not set
CONFIG_RTC_DRV_FM3130=m
CONFIG_RTC_DRV_RX8581=m
CONFIG_RTC_DRV_RX8025=m
# CONFIG_RTC_DRV_EM3027 is not set
# CONFIG_RTC_DRV_RV3029C2 is not set
#
# SPI RTC drivers
#
#
# Platform RTC drivers
#
CONFIG_RTC_DRV_CMOS=y
CONFIG_RTC_DRV_DS1286=m
CONFIG_RTC_DRV_DS1511=m
CONFIG_RTC_DRV_DS1553=m
CONFIG_RTC_DRV_DS1742=m
CONFIG_RTC_DRV_STK17TA8=m
# CONFIG_RTC_DRV_M48T86 is not set
CONFIG_RTC_DRV_M48T35=m
CONFIG_RTC_DRV_M48T59=m
# CONFIG_RTC_DRV_MSM6242 is not set
CONFIG_RTC_DRV_BQ4802=m
# CONFIG_RTC_DRV_RP5C01 is not set
CONFIG_RTC_DRV_V3020=m
# CONFIG_RTC_DRV_DS2404 is not set
#
# on-CPU RTC drivers
#
# CONFIG_RTC_DRV_MOXART is not set
#
# HID Sensor RTC drivers
#
# CONFIG_RTC_DRV_HID_SENSOR_TIME is not set
CONFIG_DMADEVICES=y
# CONFIG_DMADEVICES_DEBUG is not set
#
# DMA Devices
#
# CONFIG_INTEL_MID_DMAC is not set
CONFIG_INTEL_IOATDMA=m
# CONFIG_DW_DMAC_CORE is not set
# CONFIG_DW_DMAC is not set
# CONFIG_DW_DMAC_PCI is not set
# CONFIG_TIMB_DMA is not set
# CONFIG_PCH_DMA is not set
CONFIG_DMA_ENGINE=y
CONFIG_DMA_ACPI=y
#
# DMA Clients
#
CONFIG_ASYNC_TX_DMA=y
# CONFIG_DMATEST is not set
CONFIG_DMA_ENGINE_RAID=y
CONFIG_DCA=m
CONFIG_AUXDISPLAY=y
CONFIG_KS0108=m
CONFIG_KS0108_PORT=0x378
CONFIG_KS0108_DELAY=2
CONFIG_CFAG12864B=m
CONFIG_CFAG12864B_RATE=20
CONFIG_UIO=m
CONFIG_UIO_CIF=m
CONFIG_UIO_PDRV_GENIRQ=m
# CONFIG_UIO_DMEM_GENIRQ is not set
CONFIG_UIO_AEC=m
CONFIG_UIO_SERCOS3=m
CONFIG_UIO_PCI_GENERIC=m
# CONFIG_UIO_NETX is not set
# CONFIG_UIO_MF624 is not set
# CONFIG_VFIO is not set
# CONFIG_VIRT_DRIVERS is not set
CONFIG_VIRTIO=m
#
# Virtio drivers
#
CONFIG_VIRTIO_PCI=m
CONFIG_VIRTIO_BALLOON=m
# CONFIG_VIRTIO_MMIO is not set
#
# Microsoft Hyper-V guest support
#
# CONFIG_HYPERV is not set
#
# Xen driver support
#
CONFIG_XEN_BALLOON=y
# CONFIG_XEN_SELFBALLOONING is not set
# CONFIG_XEN_BALLOON_MEMORY_HOTPLUG is not set
CONFIG_XEN_SCRUB_PAGES=y
CONFIG_XEN_DEV_EVTCHN=y
CONFIG_XEN_BACKEND=y
CONFIG_XENFS=y
CONFIG_XEN_COMPAT_XENFS=y
CONFIG_XEN_SYS_HYPERVISOR=y
CONFIG_XEN_XENBUS_FRONTEND=y
CONFIG_XEN_GNTDEV=y
CONFIG_XEN_GRANT_DEV_ALLOC=m
CONFIG_SWIOTLB_XEN=y
CONFIG_XEN_TMEM=m
CONFIG_XEN_PCIDEV_BACKEND=m
CONFIG_XEN_PRIVCMD=y
CONFIG_XEN_ACPI_PROCESSOR=m
# CONFIG_XEN_MCE_LOG is not set
CONFIG_XEN_HAVE_PVMMU=y
CONFIG_STAGING=y
# CONFIG_ET131X is not set
# CONFIG_SLICOSS is not set
# CONFIG_USBIP_CORE is not set
# CONFIG_W35UND is not set
# CONFIG_PRISM2_USB is not set
# CONFIG_ECHO is not set
# CONFIG_COMEDI is not set
# CONFIG_PANEL is not set
# CONFIG_R8187SE is not set
# CONFIG_RTL8192U is not set
# CONFIG_RTLLIB is not set
# CONFIG_R8712U is not set
# CONFIG_R8188EU is not set
# CONFIG_R8821AE is not set
# CONFIG_RTS5139 is not set
# CONFIG_RTS5208 is not set
# CONFIG_TRANZPORT is not set
# CONFIG_IDE_PHISON is not set
# CONFIG_LINE6_USB is not set
# CONFIG_USB_SERIAL_QUATECH2 is not set
# CONFIG_VT6655 is not set
# CONFIG_VT6656 is not set
# CONFIG_DX_SEP is not set
# CONFIG_WLAGS49_H2 is not set
# CONFIG_WLAGS49_H25 is not set
# CONFIG_FB_SM7XX is not set
# CONFIG_CRYSTALHD is not set
# CONFIG_CXT1E1 is not set
# CONFIG_FB_XGI is not set
# CONFIG_ACPI_QUICKSTART is not set
# CONFIG_SBE_2T3E3 is not set
# CONFIG_USB_ENESTORAGE is not set
# CONFIG_BCM_WIMAX is not set
# CONFIG_FT1000 is not set
#
# Speakup console speech
#
# CONFIG_SPEAKUP is not set
# CONFIG_TOUCHSCREEN_CLEARPAD_TM1217 is not set
# CONFIG_TOUCHSCREEN_SYNAPTICS_I2C_RMI4 is not set
# CONFIG_STAGING_MEDIA is not set
#
# Android
#
# CONFIG_ANDROID is not set
# CONFIG_USB_WPAN_HCD is not set
# CONFIG_WIMAX_GDM72XX is not set
# CONFIG_LTE_GDM724X is not set
CONFIG_NET_VENDOR_SILICOM=y
# CONFIG_SBYPASS is not set
# CONFIG_BPCTL is not set
# CONFIG_CED1401 is not set
# CONFIG_DGRP is not set
# CONFIG_FIREWIRE_SERIAL is not set
# CONFIG_LUSTRE_FS is not set
# CONFIG_XILLYBUS is not set
# CONFIG_DGNC is not set
# CONFIG_DGAP is not set
CONFIG_X86_PLATFORM_DEVICES=y
CONFIG_ACER_WMI=m
CONFIG_ACERHDF=m
CONFIG_ASUS_LAPTOP=m
CONFIG_DELL_LAPTOP=m
CONFIG_DELL_WMI=m
# CONFIG_DELL_WMI_AIO is not set
CONFIG_FUJITSU_LAPTOP=m
# CONFIG_FUJITSU_LAPTOP_DEBUG is not set
# CONFIG_FUJITSU_TABLET is not set
# CONFIG_AMILO_RFKILL is not set
# CONFIG_HP_ACCEL is not set
# CONFIG_HP_WIRELESS is not set
CONFIG_HP_WMI=m
CONFIG_MSI_LAPTOP=m
CONFIG_PANASONIC_LAPTOP=m
CONFIG_COMPAL_LAPTOP=m
CONFIG_SONY_LAPTOP=m
CONFIG_SONYPI_COMPAT=y
# CONFIG_IDEAPAD_LAPTOP is not set
CONFIG_THINKPAD_ACPI=m
CONFIG_THINKPAD_ACPI_ALSA_SUPPORT=y
# CONFIG_THINKPAD_ACPI_DEBUGFACILITIES is not set
# CONFIG_THINKPAD_ACPI_DEBUG is not set
# CONFIG_THINKPAD_ACPI_UNSAFE_LEDS is not set
CONFIG_THINKPAD_ACPI_VIDEO=y
CONFIG_THINKPAD_ACPI_HOTKEY_POLL=y
CONFIG_SENSORS_HDAPS=m
# CONFIG_INTEL_MENLOW is not set
# CONFIG_EEEPC_LAPTOP is not set
# CONFIG_ASUS_WMI is not set
CONFIG_ACPI_WMI=m
CONFIG_MSI_WMI=m
# CONFIG_TOPSTAR_LAPTOP is not set
CONFIG_ACPI_TOSHIBA=m
CONFIG_TOSHIBA_BT_RFKILL=m
CONFIG_ACPI_CMPC=m
CONFIG_INTEL_IPS=m
CONFIG_IBM_RTL=m
CONFIG_XO15_EBOOK=m
CONFIG_SAMSUNG_LAPTOP=m
CONFIG_MXM_WMI=m
# CONFIG_INTEL_OAKTRAIL is not set
# CONFIG_SAMSUNG_Q10 is not set
# CONFIG_APPLE_GMUX is not set
# CONFIG_INTEL_RST is not set
# CONFIG_INTEL_SMARTCONNECT is not set
# CONFIG_PVPANIC is not set
# CONFIG_CHROME_PLATFORMS is not set
#
# Hardware Spinlock drivers
#
CONFIG_CLKEVT_I8253=y
CONFIG_I8253_LOCK=y
CONFIG_CLKBLD_I8253=y
# CONFIG_MAILBOX is not set
CONFIG_IOMMU_API=y
CONFIG_IOMMU_SUPPORT=y
CONFIG_AMD_IOMMU=y
CONFIG_AMD_IOMMU_STATS=y
# CONFIG_AMD_IOMMU_V2 is not set
# CONFIG_INTEL_IOMMU is not set
# CONFIG_IRQ_REMAP is not set
#
# Remoteproc drivers
#
# CONFIG_STE_MODEM_RPROC is not set
#
# Rpmsg drivers
#
# CONFIG_PM_DEVFREQ is not set
# CONFIG_EXTCON is not set
# CONFIG_MEMORY is not set
# CONFIG_IIO is not set
# CONFIG_NTB is not set
# CONFIG_VME_BUS is not set
# CONFIG_PWM is not set
# CONFIG_IPACK_BUS is not set
CONFIG_RESET_CONTROLLER=y
# CONFIG_FMC is not set
#
# PHY Subsystem
#
CONFIG_GENERIC_PHY=y
# CONFIG_PHY_EXYNOS_MIPI_VIDEO is not set
# CONFIG_BCM_KONA_USB2_PHY is not set
# CONFIG_POWERCAP is not set
#
# Firmware Drivers
#
CONFIG_EDD=m
# CONFIG_EDD_OFF is not set
CONFIG_FIRMWARE_MEMMAP=y
CONFIG_DELL_RBU=m
CONFIG_DCDBAS=m
CONFIG_DMIID=y
CONFIG_DMI_SYSFS=m
CONFIG_DMI_SCAN_MACHINE_NON_EFI_FALLBACK=y
CONFIG_ISCSI_IBFT_FIND=y
CONFIG_ISCSI_IBFT=m
# CONFIG_GOOGLE_FIRMWARE is not set
#
# EFI (Extensible Firmware Interface) Support
#
CONFIG_EFI_VARS=y
CONFIG_EFI_VARS_PSTORE=y
# CONFIG_EFI_VARS_PSTORE_DEFAULT_DISABLE is not set
CONFIG_EFI_RUNTIME_MAP=y
CONFIG_UEFI_CPER=y
#
# File systems
#
CONFIG_DCACHE_WORD_ACCESS=y
CONFIG_EXT2_FS=m
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y
CONFIG_EXT2_FS_XIP=y
CONFIG_EXT3_FS=m
CONFIG_EXT3_DEFAULTS_TO_ORDERED=y
CONFIG_EXT3_FS_XATTR=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
CONFIG_EXT4_FS=m
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
# CONFIG_EXT4_DEBUG is not set
CONFIG_FS_XIP=y
CONFIG_JBD=m
# CONFIG_JBD_DEBUG is not set
CONFIG_JBD2=m
CONFIG_JBD2_DEBUG=y
CONFIG_FS_MBCACHE=m
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
CONFIG_XFS_FS=m
CONFIG_XFS_QUOTA=y
CONFIG_XFS_POSIX_ACL=y
# CONFIG_XFS_RT is not set
# CONFIG_XFS_WARN is not set
# CONFIG_XFS_DEBUG is not set
CONFIG_GFS2_FS=m
CONFIG_GFS2_FS_LOCKING_DLM=y
CONFIG_OCFS2_FS=m
CONFIG_OCFS2_FS_O2CB=m
CONFIG_OCFS2_FS_USERSPACE_CLUSTER=m
CONFIG_OCFS2_FS_STATS=y
CONFIG_OCFS2_DEBUG_MASKLOG=y
# CONFIG_OCFS2_DEBUG_FS is not set
CONFIG_BTRFS_FS=m
CONFIG_BTRFS_FS_POSIX_ACL=y
# CONFIG_BTRFS_FS_CHECK_INTEGRITY is not set
# CONFIG_BTRFS_FS_RUN_SANITY_TESTS is not set
# CONFIG_BTRFS_DEBUG is not set
# CONFIG_BTRFS_ASSERT is not set
# CONFIG_NILFS2_FS is not set
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=y
CONFIG_FILE_LOCKING=y
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_FANOTIFY=y
CONFIG_FANOTIFY_ACCESS_PERMISSIONS=y
CONFIG_QUOTA=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
CONFIG_PRINT_QUOTA_WARNING=y
# CONFIG_QUOTA_DEBUG is not set
CONFIG_QUOTA_TREE=y
# CONFIG_QFMT_V1 is not set
CONFIG_QFMT_V2=y
CONFIG_QUOTACTL=y
CONFIG_QUOTACTL_COMPAT=y
CONFIG_AUTOFS4_FS=y
CONFIG_FUSE_FS=m
CONFIG_CUSE=m
#
# Caches
#
CONFIG_FSCACHE=m
CONFIG_FSCACHE_STATS=y
# CONFIG_FSCACHE_HISTOGRAM is not set
# CONFIG_FSCACHE_DEBUG is not set
# CONFIG_FSCACHE_OBJECT_LIST is not set
CONFIG_CACHEFILES=m
# CONFIG_CACHEFILES_DEBUG is not set
# CONFIG_CACHEFILES_HISTOGRAM is not set
#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
CONFIG_UDF_FS=m
CONFIG_UDF_NLS=y
#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="ascii"
# CONFIG_NTFS_FS is not set
#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_VMCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_TMPFS_XATTR=y
CONFIG_HUGETLBFS=y
CONFIG_HUGETLB_PAGE=y
CONFIG_CONFIGFS_FS=m
CONFIG_MISC_FILESYSTEMS=y
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
CONFIG_ECRYPT_FS=m
# CONFIG_ECRYPT_FS_MESSAGING is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
CONFIG_JFFS2_FS=m
CONFIG_JFFS2_FS_DEBUG=0
CONFIG_JFFS2_FS_WRITEBUFFER=y
# CONFIG_JFFS2_FS_WBUF_VERIFY is not set
CONFIG_JFFS2_SUMMARY=y
CONFIG_JFFS2_FS_XATTR=y
CONFIG_JFFS2_FS_POSIX_ACL=y
CONFIG_JFFS2_FS_SECURITY=y
# CONFIG_JFFS2_COMPRESSION_OPTIONS is not set
CONFIG_JFFS2_ZLIB=y
# CONFIG_JFFS2_LZO is not set
CONFIG_JFFS2_RTIME=y
# CONFIG_JFFS2_RUBIN is not set
CONFIG_UBIFS_FS=m
# CONFIG_UBIFS_FS_ADVANCED_COMPR is not set
CONFIG_UBIFS_FS_LZO=y
CONFIG_UBIFS_FS_ZLIB=y
# CONFIG_LOGFS is not set
CONFIG_CRAMFS=m
CONFIG_SQUASHFS=m
CONFIG_SQUASHFS_FILE_CACHE=y
# CONFIG_SQUASHFS_FILE_DIRECT is not set
CONFIG_SQUASHFS_DECOMP_SINGLE=y
# CONFIG_SQUASHFS_DECOMP_MULTI is not set
# CONFIG_SQUASHFS_DECOMP_MULTI_PERCPU is not set
# CONFIG_SQUASHFS_XATTR is not set
CONFIG_SQUASHFS_ZLIB=y
# CONFIG_SQUASHFS_LZO is not set
# CONFIG_SQUASHFS_XZ is not set
# CONFIG_SQUASHFS_4K_DEVBLK_SIZE is not set
# CONFIG_SQUASHFS_EMBEDDED is not set
CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE=3
# CONFIG_VXFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX6FS_FS is not set
# CONFIG_ROMFS_FS is not set
CONFIG_PSTORE=y
# CONFIG_PSTORE_CONSOLE is not set
# CONFIG_PSTORE_FTRACE is not set
# CONFIG_PSTORE_RAM is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
# CONFIG_EXOFS_FS is not set
# CONFIG_F2FS_FS is not set
# CONFIG_EFIVAR_FS is not set
CONFIG_ORE=m
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=m
CONFIG_NFS_V2=m
CONFIG_NFS_V3=m
CONFIG_NFS_V3_ACL=y
CONFIG_NFS_V4=m
# CONFIG_NFS_SWAP is not set
CONFIG_NFS_V4_1=y
# CONFIG_NFS_V4_2 is not set
CONFIG_PNFS_FILE_LAYOUT=m
CONFIG_PNFS_BLOCK=m
CONFIG_PNFS_OBJLAYOUT=m
CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN="kernel.org"
# CONFIG_NFS_V4_1_MIGRATION is not set
CONFIG_NFS_FSCACHE=y
CONFIG_NFS_USE_LEGACY_DNS=y
CONFIG_NFSD=m
CONFIG_NFSD_V2_ACL=y
CONFIG_NFSD_V3=y
CONFIG_NFSD_V3_ACL=y
CONFIG_NFSD_V4=y
# CONFIG_NFSD_V4_SECURITY_LABEL is not set
# CONFIG_NFSD_FAULT_INJECTION is not set
CONFIG_LOCKD=m
CONFIG_LOCKD_V4=y
CONFIG_NFS_ACL_SUPPORT=m
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=m
CONFIG_SUNRPC_GSS=m
CONFIG_SUNRPC_BACKCHANNEL=y
CONFIG_SUNRPC_XPRT_RDMA=m
CONFIG_RPCSEC_GSS_KRB5=m
# CONFIG_SUNRPC_DEBUG is not set
# CONFIG_CEPH_FS is not set
CONFIG_CIFS=m
CONFIG_CIFS_STATS=y
# CONFIG_CIFS_STATS2 is not set
CONFIG_CIFS_WEAK_PW_HASH=y
CONFIG_CIFS_UPCALL=y
CONFIG_CIFS_XATTR=y
CONFIG_CIFS_POSIX=y
CONFIG_CIFS_ACL=y
CONFIG_CIFS_DEBUG=y
# CONFIG_CIFS_DEBUG2 is not set
CONFIG_CIFS_DFS_UPCALL=y
# CONFIG_CIFS_SMB2 is not set
# CONFIG_CIFS_FSCACHE is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
# CONFIG_9P_FS is not set
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="utf8"
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_737=m
CONFIG_NLS_CODEPAGE_775=m
CONFIG_NLS_CODEPAGE_850=m
CONFIG_NLS_CODEPAGE_852=m
CONFIG_NLS_CODEPAGE_855=m
CONFIG_NLS_CODEPAGE_857=m
CONFIG_NLS_CODEPAGE_860=m
CONFIG_NLS_CODEPAGE_861=m
CONFIG_NLS_CODEPAGE_862=m
CONFIG_NLS_CODEPAGE_863=m
CONFIG_NLS_CODEPAGE_864=m
CONFIG_NLS_CODEPAGE_865=m
CONFIG_NLS_CODEPAGE_866=m
CONFIG_NLS_CODEPAGE_869=m
CONFIG_NLS_CODEPAGE_936=m
CONFIG_NLS_CODEPAGE_950=m
CONFIG_NLS_CODEPAGE_932=m
CONFIG_NLS_CODEPAGE_949=m
CONFIG_NLS_CODEPAGE_874=m
CONFIG_NLS_ISO8859_8=m
CONFIG_NLS_CODEPAGE_1250=m
CONFIG_NLS_CODEPAGE_1251=m
CONFIG_NLS_ASCII=y
CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_ISO8859_2=m
CONFIG_NLS_ISO8859_3=m
CONFIG_NLS_ISO8859_4=m
CONFIG_NLS_ISO8859_5=m
CONFIG_NLS_ISO8859_6=m
CONFIG_NLS_ISO8859_7=m
CONFIG_NLS_ISO8859_9=m
CONFIG_NLS_ISO8859_13=m
CONFIG_NLS_ISO8859_14=m
CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
# CONFIG_NLS_MAC_ROMAN is not set
# CONFIG_NLS_MAC_CELTIC is not set
# CONFIG_NLS_MAC_CENTEURO is not set
# CONFIG_NLS_MAC_CROATIAN is not set
# CONFIG_NLS_MAC_CYRILLIC is not set
# CONFIG_NLS_MAC_GAELIC is not set
# CONFIG_NLS_MAC_GREEK is not set
# CONFIG_NLS_MAC_ICELAND is not set
# CONFIG_NLS_MAC_INUIT is not set
# CONFIG_NLS_MAC_ROMANIAN is not set
# CONFIG_NLS_MAC_TURKISH is not set
CONFIG_NLS_UTF8=m
CONFIG_DLM=m
CONFIG_DLM_DEBUG=y
#
# Kernel hacking
#
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
#
# printk and dmesg options
#
# CONFIG_PRINTK_TIME is not set
CONFIG_DEFAULT_MESSAGE_LOGLEVEL=4
CONFIG_BOOT_PRINTK_DELAY=y
CONFIG_DYNAMIC_DEBUG=y
#
# Compile-time checks and compiler options
#
CONFIG_DEBUG_INFO=y
# CONFIG_DEBUG_INFO_REDUCED is not set
# CONFIG_ENABLE_WARN_DEPRECATED is not set
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=2048
CONFIG_STRIP_ASM_SYMS=y
# CONFIG_READABLE_ASM is not set
# CONFIG_UNUSED_SYMBOLS is not set
CONFIG_DEBUG_FS=y
CONFIG_HEADERS_CHECK=y
CONFIG_DEBUG_SECTION_MISMATCH=y
CONFIG_ARCH_WANT_FRAME_POINTERS=y
CONFIG_FRAME_POINTER=y
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0x1
CONFIG_DEBUG_KERNEL=y
#
# Memory Debugging
#
# CONFIG_DEBUG_PAGEALLOC is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_DEBUG_SLAB is not set
CONFIG_HAVE_DEBUG_KMEMLEAK=y
# CONFIG_DEBUG_KMEMLEAK is not set
# CONFIG_DEBUG_STACK_USAGE is not set
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_VIRTUAL is not set
CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_DEBUG_PER_CPU_MAPS is not set
CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
# CONFIG_DEBUG_STACKOVERFLOW is not set
CONFIG_HAVE_ARCH_KMEMCHECK=y
CONFIG_DEBUG_SHIRQ=y
#
# Debug Lockups and Hangs
#
CONFIG_LOCKUP_DETECTOR=y
CONFIG_HARDLOCKUP_DETECTOR=y
# CONFIG_BOOTPARAM_HARDLOCKUP_PANIC is not set
CONFIG_BOOTPARAM_HARDLOCKUP_PANIC_VALUE=0
# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0
CONFIG_DETECT_HUNG_TASK=y
CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=120
# CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set
CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=0
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_PANIC_TIMEOUT=0
CONFIG_SCHED_DEBUG=y
CONFIG_SCHEDSTATS=y
CONFIG_TIMER_STATS=y
#
# Lock Debugging (spinlocks, mutexes, etc...)
#
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_RT_MUTEX_TESTER is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
# CONFIG_DEBUG_WW_MUTEX_SLOWPATH is not set
# CONFIG_DEBUG_LOCK_ALLOC is not set
# CONFIG_PROVE_LOCKING is not set
# CONFIG_LOCK_STAT is not set
# CONFIG_DEBUG_ATOMIC_SLEEP is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
CONFIG_STACKTRACE=y
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_WRITECOUNT is not set
CONFIG_DEBUG_LIST=y
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_DEBUG_CREDENTIALS is not set
#
# RCU Debugging
#
# CONFIG_SPARSE_RCU_POINTER is not set
# CONFIG_RCU_TORTURE_TEST is not set
CONFIG_RCU_CPU_STALL_TIMEOUT=60
# CONFIG_RCU_CPU_STALL_INFO is not set
# CONFIG_RCU_TRACE is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_NOTIFIER_ERROR_INJECTION is not set
# CONFIG_FAULT_INJECTION is not set
CONFIG_LATENCYTOP=y
CONFIG_ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS=y
# CONFIG_DEBUG_STRICT_USER_COPY_CHECKS is not set
CONFIG_USER_STACKTRACE_SUPPORT=y
CONFIG_NOP_TRACER=y
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_FP_TEST=y
CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HAVE_FENTRY=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_TRACER_MAX_TRACE=y
CONFIG_TRACE_CLOCK=y
CONFIG_RING_BUFFER=y
CONFIG_EVENT_TRACING=y
CONFIG_CONTEXT_SWITCH_TRACER=y
CONFIG_RING_BUFFER_ALLOW_SWAP=y
CONFIG_TRACING=y
CONFIG_GENERIC_TRACER=y
CONFIG_TRACING_SUPPORT=y
CONFIG_FTRACE=y
CONFIG_FUNCTION_TRACER=y
CONFIG_FUNCTION_GRAPH_TRACER=y
# CONFIG_IRQSOFF_TRACER is not set
CONFIG_SCHED_TRACER=y
CONFIG_FTRACE_SYSCALLS=y
CONFIG_TRACER_SNAPSHOT=y
# CONFIG_TRACER_SNAPSHOT_PER_CPU_SWAP is not set
CONFIG_BRANCH_PROFILE_NONE=y
# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
# CONFIG_PROFILE_ALL_BRANCHES is not set
CONFIG_STACK_TRACER=y
CONFIG_BLK_DEV_IO_TRACE=y
CONFIG_KPROBE_EVENT=y
# CONFIG_UPROBE_EVENT is not set
CONFIG_PROBE_EVENTS=y
CONFIG_DYNAMIC_FTRACE=y
CONFIG_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_FUNCTION_PROFILER=y
CONFIG_FTRACE_MCOUNT_RECORD=y
# CONFIG_FTRACE_STARTUP_TEST is not set
# CONFIG_MMIOTRACE is not set
CONFIG_RING_BUFFER_BENCHMARK=m
# CONFIG_RING_BUFFER_STARTUP_TEST is not set
#
# Runtime Testing
#
# CONFIG_LKDTM is not set
# CONFIG_TEST_LIST_SORT is not set
# CONFIG_KPROBES_SANITY_TEST is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_RBTREE_TEST is not set
# CONFIG_INTERVAL_TREE_TEST is not set
# CONFIG_PERCPU_TEST is not set
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_ASYNC_RAID6_TEST is not set
# CONFIG_TEST_STRING_HELPERS is not set
# CONFIG_TEST_KSTRTOX is not set
CONFIG_PROVIDE_OHCI1394_DMA_INIT=y
CONFIG_BUILD_DOCSRC=y
# CONFIG_DMA_API_DEBUG is not set
# CONFIG_TEST_MODULE is not set
# CONFIG_TEST_USER_COPY is not set
# CONFIG_SAMPLES is not set
CONFIG_HAVE_ARCH_KGDB=y
CONFIG_KGDB=y
CONFIG_KGDB_SERIAL_CONSOLE=y
CONFIG_KGDB_TESTS=y
# CONFIG_KGDB_TESTS_ON_BOOT is not set
# CONFIG_KGDB_LOW_LEVEL_TRAP is not set
# CONFIG_KGDB_KDB is not set
CONFIG_STRICT_DEVMEM=y
# CONFIG_X86_VERBOSE_BOOTUP is not set
CONFIG_EARLY_PRINTK=y
CONFIG_EARLY_PRINTK_DBGP=y
# CONFIG_EARLY_PRINTK_EFI is not set
# CONFIG_X86_PTDUMP is not set
# CONFIG_DEBUG_RODATA is not set
# CONFIG_DEBUG_SET_MODULE_RONX is not set
CONFIG_DEBUG_NX_TEST=m
CONFIG_DOUBLEFAULT=y
# CONFIG_DEBUG_TLBFLUSH is not set
# CONFIG_IOMMU_DEBUG is not set
# CONFIG_IOMMU_STRESS is not set
CONFIG_HAVE_MMIOTRACE_SUPPORT=y
# CONFIG_X86_DECODER_SELFTEST is not set
CONFIG_IO_DELAY_TYPE_0X80=0
CONFIG_IO_DELAY_TYPE_0XED=1
CONFIG_IO_DELAY_TYPE_UDELAY=2
CONFIG_IO_DELAY_TYPE_NONE=3
CONFIG_IO_DELAY_0X80=y
# CONFIG_IO_DELAY_0XED is not set
# CONFIG_IO_DELAY_UDELAY is not set
# CONFIG_IO_DELAY_NONE is not set
CONFIG_DEFAULT_IO_DELAY_TYPE=0
CONFIG_DEBUG_BOOT_PARAMS=y
# CONFIG_CPA_DEBUG is not set
CONFIG_OPTIMIZE_INLINING=y
# CONFIG_DEBUG_NMI_SELFTEST is not set
# CONFIG_X86_DEBUG_STATIC_CPU_HAS is not set
#
# Security options
#
CONFIG_KEYS=y
# CONFIG_PERSISTENT_KEYRINGS is not set
# CONFIG_BIG_KEYS is not set
# CONFIG_TRUSTED_KEYS is not set
# CONFIG_ENCRYPTED_KEYS is not set
CONFIG_KEYS_DEBUG_PROC_KEYS=y
# CONFIG_SECURITY_DMESG_RESTRICT is not set
CONFIG_SECURITY=y
CONFIG_SECURITYFS=y
CONFIG_SECURITY_NETWORK=y
CONFIG_SECURITY_NETWORK_XFRM=y
# CONFIG_SECURITY_PATH is not set
CONFIG_LSM_MMAP_MIN_ADDR=65535
CONFIG_SECURITY_SELINUX=y
CONFIG_SECURITY_SELINUX_BOOTPARAM=y
CONFIG_SECURITY_SELINUX_BOOTPARAM_VALUE=1
CONFIG_SECURITY_SELINUX_DISABLE=y
CONFIG_SECURITY_SELINUX_DEVELOP=y
CONFIG_SECURITY_SELINUX_AVC_STATS=y
CONFIG_SECURITY_SELINUX_CHECKREQPROT_VALUE=1
# CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX is not set
# CONFIG_SECURITY_SMACK is not set
# CONFIG_SECURITY_TOMOYO is not set
# CONFIG_SECURITY_APPARMOR is not set
# CONFIG_SECURITY_YAMA is not set
CONFIG_INTEGRITY=y
# CONFIG_INTEGRITY_SIGNATURE is not set
CONFIG_INTEGRITY_AUDIT=y
CONFIG_IMA=y
CONFIG_IMA_MEASURE_PCR_IDX=10
CONFIG_IMA_LSM_RULES=y
# CONFIG_IMA_TEMPLATE is not set
CONFIG_IMA_NG_TEMPLATE=y
# CONFIG_IMA_SIG_TEMPLATE is not set
CONFIG_IMA_DEFAULT_TEMPLATE="ima-ng"
CONFIG_IMA_DEFAULT_HASH_SHA1=y
# CONFIG_IMA_DEFAULT_HASH_SHA256 is not set
# CONFIG_IMA_DEFAULT_HASH_SHA512 is not set
# CONFIG_IMA_DEFAULT_HASH_WP512 is not set
CONFIG_IMA_DEFAULT_HASH="sha1"
# CONFIG_IMA_APPRAISE is not set
# CONFIG_EVM is not set
CONFIG_DEFAULT_SECURITY_SELINUX=y
# CONFIG_DEFAULT_SECURITY_DAC is not set
CONFIG_DEFAULT_SECURITY="selinux"
CONFIG_XOR_BLOCKS=m
CONFIG_ASYNC_CORE=m
CONFIG_ASYNC_MEMCPY=m
CONFIG_ASYNC_XOR=m
CONFIG_ASYNC_PQ=m
CONFIG_ASYNC_RAID6_RECOV=m
CONFIG_CRYPTO=y
#
# Crypto core or helper
#
CONFIG_CRYPTO_FIPS=y
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=m
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=m
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=m
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_PCOMP=m
CONFIG_CRYPTO_PCOMP2=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
# CONFIG_CRYPTO_USER is not set
# CONFIG_CRYPTO_MANAGER_DISABLE_TESTS is not set
CONFIG_CRYPTO_GF128MUL=m
CONFIG_CRYPTO_NULL=m
# CONFIG_CRYPTO_PCRYPT is not set
CONFIG_CRYPTO_WORKQUEUE=y
CONFIG_CRYPTO_CRYPTD=m
CONFIG_CRYPTO_AUTHENC=m
CONFIG_CRYPTO_TEST=m
CONFIG_CRYPTO_ABLK_HELPER=m
CONFIG_CRYPTO_GLUE_HELPER_X86=m
#
# Authenticated Encryption with Associated Data
#
CONFIG_CRYPTO_CCM=m
CONFIG_CRYPTO_GCM=m
CONFIG_CRYPTO_SEQIV=m
#
# Block modes
#
CONFIG_CRYPTO_CBC=m
CONFIG_CRYPTO_CTR=m
CONFIG_CRYPTO_CTS=m
CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_LRW=m
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_XTS=m
#
# Hash modes
#
CONFIG_CRYPTO_CMAC=m
CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m
#
# Digest
#
CONFIG_CRYPTO_CRC32C=y
CONFIG_CRYPTO_CRC32C_INTEL=m
# CONFIG_CRYPTO_CRC32 is not set
# CONFIG_CRYPTO_CRC32_PCLMUL is not set
CONFIG_CRYPTO_CRCT10DIF=m
# CONFIG_CRYPTO_CRCT10DIF_PCLMUL is not set
CONFIG_CRYPTO_GHASH=m
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD128=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_RMD256=m
CONFIG_CRYPTO_RMD320=m
CONFIG_CRYPTO_SHA1=y
# CONFIG_CRYPTO_SHA1_SSSE3 is not set
# CONFIG_CRYPTO_SHA256_SSSE3 is not set
# CONFIG_CRYPTO_SHA512_SSSE3 is not set
CONFIG_CRYPTO_SHA256=m
CONFIG_CRYPTO_SHA512=m
CONFIG_CRYPTO_TGR192=m
CONFIG_CRYPTO_WP512=m
CONFIG_CRYPTO_GHASH_CLMUL_NI_INTEL=m
#
# Ciphers
#
CONFIG_CRYPTO_AES=y
CONFIG_CRYPTO_AES_X86_64=m
CONFIG_CRYPTO_AES_NI_INTEL=m
CONFIG_CRYPTO_ANUBIS=m
CONFIG_CRYPTO_ARC4=m
CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_BLOWFISH_COMMON=m
# CONFIG_CRYPTO_BLOWFISH_X86_64 is not set
CONFIG_CRYPTO_CAMELLIA=m
# CONFIG_CRYPTO_CAMELLIA_X86_64 is not set
# CONFIG_CRYPTO_CAMELLIA_AESNI_AVX_X86_64 is not set
# CONFIG_CRYPTO_CAMELLIA_AESNI_AVX2_X86_64 is not set
CONFIG_CRYPTO_CAST_COMMON=m
CONFIG_CRYPTO_CAST5=m
# CONFIG_CRYPTO_CAST5_AVX_X86_64 is not set
CONFIG_CRYPTO_CAST6=m
# CONFIG_CRYPTO_CAST6_AVX_X86_64 is not set
CONFIG_CRYPTO_DES=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
# CONFIG_CRYPTO_SALSA20 is not set
CONFIG_CRYPTO_SALSA20_X86_64=m
CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_SERPENT=m
# CONFIG_CRYPTO_SERPENT_SSE2_X86_64 is not set
# CONFIG_CRYPTO_SERPENT_AVX_X86_64 is not set
# CONFIG_CRYPTO_SERPENT_AVX2_X86_64 is not set
CONFIG_CRYPTO_TEA=m
# CONFIG_CRYPTO_TWOFISH is not set
CONFIG_CRYPTO_TWOFISH_COMMON=m
CONFIG_CRYPTO_TWOFISH_X86_64=m
# CONFIG_CRYPTO_TWOFISH_X86_64_3WAY is not set
# CONFIG_CRYPTO_TWOFISH_AVX_X86_64 is not set
#
# Compression
#
CONFIG_CRYPTO_DEFLATE=m
CONFIG_CRYPTO_ZLIB=m
CONFIG_CRYPTO_LZO=y
# CONFIG_CRYPTO_LZ4 is not set
# CONFIG_CRYPTO_LZ4HC is not set
#
# Random Number Generation
#
CONFIG_CRYPTO_ANSI_CPRNG=m
CONFIG_CRYPTO_USER_API=m
CONFIG_CRYPTO_USER_API_HASH=m
CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_HASH_INFO=y
CONFIG_CRYPTO_HW=y
CONFIG_CRYPTO_DEV_PADLOCK=m
CONFIG_CRYPTO_DEV_PADLOCK_AES=m
CONFIG_CRYPTO_DEV_PADLOCK_SHA=m
# CONFIG_CRYPTO_DEV_CCP is not set
CONFIG_ASYMMETRIC_KEY_TYPE=y
CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE=y
CONFIG_PUBLIC_KEY_ALGO_RSA=y
CONFIG_X509_CERTIFICATE_PARSER=y
CONFIG_HAVE_KVM=y
CONFIG_HAVE_KVM_IRQCHIP=y
CONFIG_HAVE_KVM_IRQ_ROUTING=y
CONFIG_HAVE_KVM_EVENTFD=y
CONFIG_KVM_APIC_ARCHITECTURE=y
CONFIG_KVM_MMIO=y
CONFIG_KVM_ASYNC_PF=y
CONFIG_HAVE_KVM_MSI=y
CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT=y
CONFIG_KVM_VFIO=y
CONFIG_VIRTUALIZATION=y
CONFIG_KVM=m
CONFIG_KVM_INTEL=m
CONFIG_KVM_AMD=m
# CONFIG_KVM_MMU_AUDIT is not set
CONFIG_KVM_DEVICE_ASSIGNMENT=y
CONFIG_BINARY_PRINTF=y
#
# Library routines
#
CONFIG_RAID6_PQ=m
CONFIG_BITREVERSE=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
CONFIG_GENERIC_NET_UTILS=y
CONFIG_GENERIC_FIND_FIRST_BIT=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_IOMAP=y
CONFIG_GENERIC_IO=y
CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
CONFIG_CRC_CCITT=m
CONFIG_CRC16=y
CONFIG_CRC_T10DIF=m
CONFIG_CRC_ITU_T=m
CONFIG_CRC32=y
# CONFIG_CRC32_SELFTEST is not set
CONFIG_CRC32_SLICEBY8=y
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
CONFIG_CRC7=m
CONFIG_LIBCRC32C=m
# CONFIG_CRC8 is not set
# CONFIG_RANDOM32_SELFTEST is not set
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=y
CONFIG_LZO_COMPRESS=y
CONFIG_LZO_DECOMPRESS=y
CONFIG_LZ4_DECOMPRESS=y
CONFIG_XZ_DEC=y
CONFIG_XZ_DEC_X86=y
CONFIG_XZ_DEC_POWERPC=y
CONFIG_XZ_DEC_IA64=y
CONFIG_XZ_DEC_ARM=y
CONFIG_XZ_DEC_ARMTHUMB=y
CONFIG_XZ_DEC_SPARC=y
CONFIG_XZ_DEC_BCJ=y
# CONFIG_XZ_DEC_TEST is not set
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_XZ=y
CONFIG_DECOMPRESS_LZO=y
CONFIG_DECOMPRESS_LZ4=y
CONFIG_GENERIC_ALLOCATOR=y
CONFIG_REED_SOLOMON=m
CONFIG_REED_SOLOMON_DEC16=y
CONFIG_BCH=m
CONFIG_TEXTSEARCH=y
CONFIG_TEXTSEARCH_KMP=m
CONFIG_TEXTSEARCH_BM=m
CONFIG_TEXTSEARCH_FSM=m
CONFIG_ASSOCIATIVE_ARRAY=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_CHECK_SIGNATURE=y
CONFIG_CPUMASK_OFFSTACK=y
CONFIG_CPU_RMAP=y
CONFIG_DQL=y
CONFIG_NLATTR=y
CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE=y
CONFIG_LRU_CACHE=m
CONFIG_AVERAGE=y
CONFIG_CLZ_TAB=y
# CONFIG_CORDIC is not set
# CONFIG_DDR is not set
CONFIG_MPILIB=y
CONFIG_OID_REGISTRY=y
CONFIG_UCS2_STRING=y
CONFIG_FONT_SUPPORT=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
2014-04-04 16:55 ` Konrad Rzeszutek Wilk
` (4 preceding siblings ...)
(?)
@ 2014-04-04 18:14 ` Marcos E. Matsunaga
-1 siblings, 0 replies; 109+ messages in thread
From: Marcos E. Matsunaga @ 2014-04-04 18:14 UTC (permalink / raw)
To: Konrad Rzeszutek Wilk, Waiman Long
Cc: x86, Gleb Natapov, Peter Zijlstra, virtualization,
H. Peter Anvin, Thomas Gleixner, linux-arch, kvm,
Raghavendra K T, Ingo Molnar, xen-devel, Paul E. McKenney,
Rik van Riel, Scott J Norton, Paolo Bonzini, Oleg Nesterov,
boris.ostrovsky, Aswin Chandramouleeswaran, Chegu Vinod,
linux-kernel, David Vrabel, Linus Torvalds
[-- Attachment #1: Type: text/plain, Size: 2998 bytes --]
Attached is the .config I used.
On 04/04/2014 12:55 PM, Konrad Rzeszutek Wilk wrote:
> On Thu, Apr 03, 2014 at 10:57:18PM -0400, Waiman Long wrote:
>> On 04/03/2014 01:23 PM, Konrad Rzeszutek Wilk wrote:
>>> On Wed, Apr 02, 2014 at 10:10:17PM -0400, Waiman Long wrote:
>>>> On 04/02/2014 04:35 PM, Waiman Long wrote:
>>>>> On 04/02/2014 10:32 AM, Konrad Rzeszutek Wilk wrote:
>>>>>> On Wed, Apr 02, 2014 at 09:27:29AM -0400, Waiman Long wrote:
>>>>>>> N.B. Sorry for the duplicate. This patch series were resent as the
>>>>>>> original one was rejected by the vger.kernel.org list server
>>>>>>> due to long header. There is no change in content.
>>>>>>>
>>>>>>> v7->v8:
>>>>>>> - Remove one unneeded atomic operation from the slowpath, thus
>>>>>>> improving performance.
>>>>>>> - Simplify some of the codes and add more comments.
>>>>>>> - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
>>>>>>> unfair lock.
>>>>>>> - Reduce unfair lock slowpath lock stealing frequency depending
>>>>>>> on its distance from the queue head.
>>>>>>> - Add performance data for IvyBridge-EX CPU.
>>>>>> FYI, your v7 patch with 32 VCPUs (on a 32 cpu socket machine) on an
>>>>>> HVM guest under Xen after a while stops working. The workload
>>>>>> is doing 'make -j32' on the Linux kernel.
>>>>>>
>>>>>> Completely unresponsive. Thoughts?
>>>>>>
>>>>> Thank for reporting that. I haven't done that much testing on Xen.
>>>>> My focus was in KVM. I will perform more test on Xen to see if I
>>>>> can reproduce the problem.
>>>>>
>>>> BTW, does the halting and sending IPI mechanism work in HVM? I saw
>>> Yes.
>>>> that in RHEL7, PV spinlock was explicitly disabled when in HVM mode.
>>>> However, this piece of code isn't in upstream code. So I wonder if
>>>> there is problem with that.
>>> The PV ticketlock fixed it for HVM. It was disabled before because
>>> the PV guests were using bytelocks while the HVM were using ticketlocks
>>> and you couldnt' swap in PV bytelocks for ticketlocks during startup.
>> The RHEL7 code has used PV ticketlock already. RHEL7 uses a single
>> kernel for all configurations. So PV ticketlock as well as Xen and
>> KVM support was compiled in. I think booting the kernel on bare
>> metal will cause the Xen code to work in HVM mode thus activating
>> the PV spinlock code which has a negative impact on performance.
> Huh? -EPARSE
>
>> That may be why it was disabled so that the bare metal performance
>> will not be impacted.
> I am not following you.
>> BTW, could you send me more information about the configuration of
>> the machine, like the .config file that you used?
> Marcos, could you please send that information to Peter. Thanks!
>> -Longman
--
Regards,
Marcos Eduardo Matsunaga
Oracle USA
Linux Engineering
“The statements and opinions expressed here are my own and do not
necessarily represent those of Oracle Corporation.”
[-- Attachment #2: config-3.14.0-qspinlockV8+ --]
[-- Type: text/plain, Size: 125953 bytes --]
#
# Automatically generated file; DO NOT EDIT.
# Linux/x86 3.14.0 Kernel Configuration
#
CONFIG_64BIT=y
CONFIG_X86_64=y
CONFIG_X86=y
CONFIG_INSTRUCTION_DECODER=y
CONFIG_OUTPUT_FORMAT="elf64-x86-64"
CONFIG_ARCH_DEFCONFIG="arch/x86/configs/x86_64_defconfig"
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_MMU=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_ARCH_HAS_CPU_RELAX=y
CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
CONFIG_ARCH_HAS_CPU_AUTOPROBE=y
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y
CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
CONFIG_ZONE_DMA32=y
CONFIG_AUDIT_ARCH=y
CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING=y
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
CONFIG_X86_64_SMP=y
CONFIG_X86_HT=y
CONFIG_ARCH_HWEIGHT_CFLAGS="-fcall-saved-rdi -fcall-saved-rsi -fcall-saved-rdx -fcall-saved-rcx -fcall-saved-r8 -fcall-saved-r9 -fcall-saved-r10 -fcall-saved-r11"
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_EXTABLE_SORT=y
#
# General setup
#
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_CROSS_COMPILE=""
# CONFIG_COMPILE_TEST is not set
CONFIG_LOCALVERSION="-qspinlockV8"
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_BZIP2=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_HAVE_KERNEL_XZ=y
CONFIG_HAVE_KERNEL_LZO=y
CONFIG_HAVE_KERNEL_LZ4=y
CONFIG_KERNEL_GZIP=y
# CONFIG_KERNEL_BZIP2 is not set
# CONFIG_KERNEL_LZMA is not set
# CONFIG_KERNEL_XZ is not set
# CONFIG_KERNEL_LZO is not set
# CONFIG_KERNEL_LZ4 is not set
CONFIG_DEFAULT_HOSTNAME="(none)"
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
CONFIG_FHANDLE=y
CONFIG_AUDIT=y
CONFIG_AUDITSYSCALL=y
CONFIG_AUDIT_WATCH=y
CONFIG_AUDIT_TREE=y
#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_PENDING_IRQ=y
CONFIG_IRQ_DOMAIN=y
# CONFIG_IRQ_DOMAIN_DEBUG is not set
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_SPARSE_IRQ=y
CONFIG_CLOCKSOURCE_WATCHDOG=y
CONFIG_ARCH_CLOCKSOURCE_DATA=y
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST=y
CONFIG_GENERIC_CMOS_UPDATE=y
#
# Timers subsystem
#
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ_COMMON=y
# CONFIG_HZ_PERIODIC is not set
CONFIG_NO_HZ_IDLE=y
# CONFIG_NO_HZ_FULL is not set
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
#
# CPU/Task time and stats accounting
#
CONFIG_TICK_CPU_ACCOUNTING=y
# CONFIG_VIRT_CPU_ACCOUNTING_GEN is not set
# CONFIG_IRQ_TIME_ACCOUNTING is not set
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_TASKSTATS=y
CONFIG_TASK_DELAY_ACCT=y
CONFIG_TASK_XACCT=y
CONFIG_TASK_IO_ACCOUNTING=y
#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
# CONFIG_PREEMPT_RCU is not set
CONFIG_RCU_STALL_COMMON=y
# CONFIG_RCU_USER_QS is not set
CONFIG_RCU_FANOUT=64
CONFIG_RCU_FANOUT_LEAF=16
# CONFIG_RCU_FANOUT_EXACT is not set
# CONFIG_RCU_FAST_NO_HZ is not set
# CONFIG_TREE_RCU_TRACE is not set
# CONFIG_RCU_NOCB_CPU is not set
# CONFIG_IKCONFIG is not set
CONFIG_LOG_BUF_SHIFT=20
CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y
CONFIG_ARCH_SUPPORTS_NUMA_BALANCING=y
CONFIG_ARCH_SUPPORTS_INT128=y
CONFIG_ARCH_WANTS_PROT_NUMA_PROT_NONE=y
# CONFIG_NUMA_BALANCING is not set
CONFIG_CGROUPS=y
# CONFIG_CGROUP_DEBUG is not set
CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CPUSETS=y
CONFIG_PROC_PID_CPUSET=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_RESOURCE_COUNTERS=y
# CONFIG_MEMCG is not set
# CONFIG_CGROUP_HUGETLB is not set
# CONFIG_CGROUP_PERF is not set
CONFIG_CGROUP_SCHED=y
CONFIG_FAIR_GROUP_SCHED=y
# CONFIG_CFS_BANDWIDTH is not set
CONFIG_RT_GROUP_SCHED=y
CONFIG_BLK_CGROUP=y
# CONFIG_DEBUG_BLK_CGROUP is not set
# CONFIG_CHECKPOINT_RESTORE is not set
CONFIG_NAMESPACES=y
CONFIG_UTS_NS=y
CONFIG_IPC_NS=y
# CONFIG_USER_NS is not set
CONFIG_PID_NS=y
CONFIG_NET_NS=y
# CONFIG_SCHED_AUTOGROUP is not set
# CONFIG_SYSFS_DEPRECATED is not set
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_RD_XZ=y
CONFIG_RD_LZO=y
CONFIG_RD_LZ4=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
CONFIG_HAVE_UID16=y
CONFIG_SYSCTL_EXCEPTION_TRACE=y
CONFIG_HAVE_PCSPKR_PLATFORM=y
# CONFIG_EXPERT is not set
CONFIG_UID16=y
# CONFIG_SYSCTL_SYSCALL is not set
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_PCSPKR_PLATFORM=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_PCI_QUIRKS=y
# CONFIG_EMBEDDED is not set
CONFIG_HAVE_PERF_EVENTS=y
#
# Kernel Performance Events And Counters
#
CONFIG_PERF_EVENTS=y
# CONFIG_DEBUG_PERF_USE_VMALLOC is not set
CONFIG_VM_EVENT_COUNTERS=y
# CONFIG_COMPAT_BRK is not set
CONFIG_SLAB=y
# CONFIG_SLUB is not set
CONFIG_PROFILING=y
CONFIG_TRACEPOINTS=y
CONFIG_OPROFILE=m
# CONFIG_OPROFILE_EVENT_MULTIPLEX is not set
CONFIG_HAVE_OPROFILE=y
CONFIG_OPROFILE_NMI_TIMER=y
CONFIG_KPROBES=y
# CONFIG_JUMP_LABEL is not set
CONFIG_OPTPROBES=y
CONFIG_KPROBES_ON_FTRACE=y
# CONFIG_HAVE_64BIT_ALIGNED_ACCESS is not set
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
CONFIG_ARCH_USE_BUILTIN_BSWAP=y
CONFIG_KRETPROBES=y
CONFIG_USER_RETURN_NOTIFIER=y
CONFIG_HAVE_IOREMAP_PROT=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_OPTPROBES=y
CONFIG_HAVE_KPROBES_ON_FTRACE=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_DMA_ATTRS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_DMA_API_DEBUG=y
CONFIG_HAVE_HW_BREAKPOINT=y
CONFIG_HAVE_MIXED_BREAKPOINTS_REGS=y
CONFIG_HAVE_USER_RETURN_NOTIFIER=y
CONFIG_HAVE_PERF_EVENTS_NMI=y
CONFIG_HAVE_PERF_REGS=y
CONFIG_HAVE_PERF_USER_STACK_DUMP=y
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_HAVE_CMPXCHG_LOCAL=y
CONFIG_HAVE_CMPXCHG_DOUBLE=y
CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION=y
CONFIG_ARCH_WANT_OLD_COMPAT_IPC=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
CONFIG_SECCOMP_FILTER=y
CONFIG_HAVE_CC_STACKPROTECTOR=y
# CONFIG_CC_STACKPROTECTOR is not set
CONFIG_CC_STACKPROTECTOR_NONE=y
# CONFIG_CC_STACKPROTECTOR_REGULAR is not set
# CONFIG_CC_STACKPROTECTOR_STRONG is not set
CONFIG_HAVE_CONTEXT_TRACKING=y
CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
CONFIG_HAVE_ARCH_SOFT_DIRTY=y
CONFIG_MODULES_USE_ELF_RELA=y
CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y
CONFIG_OLD_SIGSUSPEND3=y
CONFIG_COMPAT_OLD_SIGACTION=y
#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_SYSTEM_TRUSTED_KEYRING=y
CONFIG_MODULES=y
CONFIG_MODULE_FORCE_LOAD=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_MODULE_FORCE_UNLOAD is not set
CONFIG_MODVERSIONS=y
CONFIG_MODULE_SRCVERSION_ALL=y
CONFIG_MODULE_SIG=y
# CONFIG_MODULE_SIG_FORCE is not set
CONFIG_MODULE_SIG_ALL=y
CONFIG_MODULE_SIG_SHA1=y
# CONFIG_MODULE_SIG_SHA224 is not set
# CONFIG_MODULE_SIG_SHA256 is not set
# CONFIG_MODULE_SIG_SHA384 is not set
# CONFIG_MODULE_SIG_SHA512 is not set
CONFIG_MODULE_SIG_HASH="sha1"
CONFIG_STOP_MACHINE=y
CONFIG_BLOCK=y
CONFIG_BLK_DEV_BSG=y
CONFIG_BLK_DEV_BSGLIB=y
CONFIG_BLK_DEV_INTEGRITY=y
CONFIG_BLK_DEV_THROTTLING=y
# CONFIG_BLK_CMDLINE_PARSER is not set
#
# Partition Types
#
CONFIG_PARTITION_ADVANCED=y
# CONFIG_ACORN_PARTITION is not set
# CONFIG_AIX_PARTITION is not set
CONFIG_OSF_PARTITION=y
CONFIG_AMIGA_PARTITION=y
# CONFIG_ATARI_PARTITION is not set
CONFIG_MAC_PARTITION=y
CONFIG_MSDOS_PARTITION=y
CONFIG_BSD_DISKLABEL=y
CONFIG_MINIX_SUBPARTITION=y
CONFIG_SOLARIS_X86_PARTITION=y
CONFIG_UNIXWARE_DISKLABEL=y
# CONFIG_LDM_PARTITION is not set
CONFIG_SGI_PARTITION=y
# CONFIG_ULTRIX_PARTITION is not set
CONFIG_SUN_PARTITION=y
CONFIG_KARMA_PARTITION=y
CONFIG_EFI_PARTITION=y
# CONFIG_SYSV68_PARTITION is not set
# CONFIG_CMDLINE_PARTITION is not set
CONFIG_BLOCK_COMPAT=y
#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
CONFIG_CFQ_GROUP_IOSCHED=y
CONFIG_DEFAULT_DEADLINE=y
# CONFIG_DEFAULT_CFQ is not set
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="deadline"
CONFIG_PREEMPT_NOTIFIERS=y
CONFIG_ASN1=y
CONFIG_UNINLINE_SPIN_UNLOCK=y
CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
CONFIG_INLINE_READ_UNLOCK=y
CONFIG_INLINE_READ_UNLOCK_IRQ=y
CONFIG_INLINE_WRITE_UNLOCK=y
CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
CONFIG_MUTEX_SPIN_ON_OWNER=y
CONFIG_ARCH_USE_QUEUE_SPINLOCK=y
CONFIG_QUEUE_SPINLOCK=y
CONFIG_FREEZER=y
#
# Processor type and features
#
CONFIG_ZONE_DMA=y
CONFIG_SMP=y
CONFIG_X86_MPPARSE=y
CONFIG_X86_EXTENDED_PLATFORM=y
# CONFIG_X86_VSMP is not set
# CONFIG_X86_INTEL_LPSS is not set
CONFIG_X86_SUPPORTS_MEMORY_FAILURE=y
CONFIG_SCHED_OMIT_FRAME_POINTER=y
CONFIG_HYPERVISOR_GUEST=y
CONFIG_PARAVIRT=y
# CONFIG_PARAVIRT_DEBUG is not set
CONFIG_PARAVIRT_SPINLOCKS=y
CONFIG_PARAVIRT_UNFAIR_LOCKS=y
CONFIG_XEN=y
CONFIG_XEN_DOM0=y
CONFIG_XEN_PRIVILEGED_GUEST=y
CONFIG_XEN_PVHVM=y
CONFIG_XEN_MAX_DOMAIN_MEMORY=500
CONFIG_XEN_SAVE_RESTORE=y
# CONFIG_XEN_DEBUG_FS is not set
# CONFIG_XEN_PVH is not set
CONFIG_KVM_GUEST=y
# CONFIG_KVM_DEBUG_FS is not set
# CONFIG_PARAVIRT_TIME_ACCOUNTING is not set
CONFIG_PARAVIRT_CLOCK=y
CONFIG_NO_BOOTMEM=y
# CONFIG_MEMTEST is not set
# CONFIG_MK8 is not set
# CONFIG_MPSC is not set
# CONFIG_MCORE2 is not set
# CONFIG_MATOM is not set
CONFIG_GENERIC_CPU=y
CONFIG_X86_INTERNODE_CACHE_SHIFT=6
CONFIG_X86_L1_CACHE_SHIFT=6
CONFIG_X86_TSC=y
CONFIG_X86_CMPXCHG64=y
CONFIG_X86_CMOV=y
CONFIG_X86_MINIMUM_CPU_FAMILY=64
CONFIG_X86_DEBUGCTLMSR=y
CONFIG_CPU_SUP_INTEL=y
CONFIG_CPU_SUP_AMD=y
CONFIG_CPU_SUP_CENTAUR=y
CONFIG_HPET_TIMER=y
CONFIG_HPET_EMULATE_RTC=y
CONFIG_DMI=y
CONFIG_GART_IOMMU=y
CONFIG_CALGARY_IOMMU=y
CONFIG_CALGARY_IOMMU_ENABLED_BY_DEFAULT=y
CONFIG_SWIOTLB=y
CONFIG_IOMMU_HELPER=y
CONFIG_MAXSMP=y
CONFIG_NR_CPUS=8192
CONFIG_SCHED_SMT=y
CONFIG_SCHED_MC=y
# CONFIG_PREEMPT_NONE is not set
CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_PREEMPT is not set
CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y
CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS=y
CONFIG_X86_MCE=y
CONFIG_X86_MCE_INTEL=y
CONFIG_X86_MCE_AMD=y
CONFIG_X86_MCE_THRESHOLD=y
CONFIG_X86_MCE_INJECT=m
CONFIG_X86_THERMAL_VECTOR=y
CONFIG_I8K=m
CONFIG_MICROCODE=m
CONFIG_MICROCODE_INTEL=y
CONFIG_MICROCODE_AMD=y
CONFIG_MICROCODE_OLD_INTERFACE=y
# CONFIG_MICROCODE_INTEL_EARLY is not set
# CONFIG_MICROCODE_AMD_EARLY is not set
CONFIG_X86_MSR=y
CONFIG_X86_CPUID=y
CONFIG_ARCH_PHYS_ADDR_T_64BIT=y
CONFIG_ARCH_DMA_ADDR_T_64BIT=y
CONFIG_DIRECT_GBPAGES=y
CONFIG_NUMA=y
CONFIG_AMD_NUMA=y
CONFIG_X86_64_ACPI_NUMA=y
CONFIG_NODES_SPAN_OTHER_NODES=y
# CONFIG_NUMA_EMU is not set
CONFIG_NODES_SHIFT=10
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_DEFAULT=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_MEMORY_PROBE=y
CONFIG_ARCH_PROC_KCORE_TEXT=y
CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_SPARSEMEM_MANUAL=y
CONFIG_SPARSEMEM=y
CONFIG_NEED_MULTIPLE_NODES=y
CONFIG_HAVE_MEMORY_PRESENT=y
CONFIG_SPARSEMEM_EXTREME=y
CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
CONFIG_SPARSEMEM_ALLOC_MEM_MAP_TOGETHER=y
CONFIG_SPARSEMEM_VMEMMAP=y
CONFIG_HAVE_MEMBLOCK=y
CONFIG_HAVE_MEMBLOCK_NODE_MAP=y
CONFIG_ARCH_DISCARD_MEMBLOCK=y
CONFIG_MEMORY_ISOLATION=y
# CONFIG_MOVABLE_NODE is not set
# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
CONFIG_MEMORY_HOTPLUG=y
CONFIG_MEMORY_HOTPLUG_SPARSE=y
# CONFIG_MEMORY_HOTREMOVE is not set
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK=y
CONFIG_BALLOON_COMPACTION=y
CONFIG_COMPACTION=y
CONFIG_MIGRATION=y
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_ZONE_DMA_FLAG=1
CONFIG_BOUNCE=y
CONFIG_NEED_BOUNCE_POOL=y
CONFIG_VIRT_TO_BUS=y
CONFIG_MMU_NOTIFIER=y
CONFIG_KSM=y
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_ARCH_SUPPORTS_MEMORY_FAILURE=y
CONFIG_MEMORY_FAILURE=y
CONFIG_HWPOISON_INJECT=m
CONFIG_TRANSPARENT_HUGEPAGE=y
CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS=y
# CONFIG_TRANSPARENT_HUGEPAGE_MADVISE is not set
CONFIG_CROSS_MEMORY_ATTACH=y
CONFIG_CLEANCACHE=y
CONFIG_FRONTSWAP=y
# CONFIG_CMA is not set
# CONFIG_ZBUD is not set
# CONFIG_ZSWAP is not set
# CONFIG_ZSMALLOC is not set
# CONFIG_X86_CHECK_BIOS_CORRUPTION is not set
CONFIG_X86_RESERVE_LOW=64
CONFIG_MTRR=y
CONFIG_MTRR_SANITIZER=y
CONFIG_MTRR_SANITIZER_ENABLE_DEFAULT=1
CONFIG_MTRR_SANITIZER_SPARE_REG_NR_DEFAULT=1
CONFIG_X86_PAT=y
CONFIG_ARCH_USES_PG_UNCACHED=y
CONFIG_ARCH_RANDOM=y
CONFIG_X86_SMAP=y
CONFIG_EFI=y
# CONFIG_EFI_STUB is not set
CONFIG_SECCOMP=y
# CONFIG_HZ_100 is not set
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
CONFIG_HZ_1000=y
CONFIG_HZ=1000
CONFIG_SCHED_HRTICK=y
CONFIG_KEXEC=y
CONFIG_CRASH_DUMP=y
CONFIG_KEXEC_JUMP=y
CONFIG_PHYSICAL_START=0x1000000
CONFIG_RELOCATABLE=y
CONFIG_PHYSICAL_ALIGN=0x1000000
CONFIG_HOTPLUG_CPU=y
# CONFIG_BOOTPARAM_HOTPLUG_CPU0 is not set
# CONFIG_DEBUG_HOTPLUG_CPU0 is not set
# CONFIG_COMPAT_VDSO is not set
# CONFIG_CMDLINE_BOOL is not set
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y
CONFIG_USE_PERCPU_NUMA_NODE_ID=y
#
# Power management and ACPI options
#
CONFIG_ARCH_HIBERNATION_HEADER=y
CONFIG_SUSPEND=y
CONFIG_SUSPEND_FREEZER=y
CONFIG_HIBERNATE_CALLBACKS=y
CONFIG_HIBERNATION=y
CONFIG_PM_STD_PARTITION=""
CONFIG_PM_SLEEP=y
CONFIG_PM_SLEEP_SMP=y
# CONFIG_PM_AUTOSLEEP is not set
# CONFIG_PM_WAKELOCKS is not set
CONFIG_PM_RUNTIME=y
CONFIG_PM=y
# CONFIG_PM_DEBUG is not set
# CONFIG_WQ_POWER_EFFICIENT_DEFAULT is not set
CONFIG_ACPI=y
CONFIG_ACPI_SLEEP=y
CONFIG_ACPI_PROCFS=y
# CONFIG_ACPI_EC_DEBUGFS is not set
CONFIG_ACPI_AC=y
CONFIG_ACPI_BATTERY=y
CONFIG_ACPI_BUTTON=y
CONFIG_ACPI_VIDEO=m
CONFIG_ACPI_FAN=y
CONFIG_ACPI_DOCK=y
CONFIG_ACPI_PROCESSOR=y
CONFIG_ACPI_IPMI=m
CONFIG_ACPI_HOTPLUG_CPU=y
CONFIG_ACPI_PROCESSOR_AGGREGATOR=m
CONFIG_ACPI_THERMAL=y
CONFIG_ACPI_NUMA=y
# CONFIG_ACPI_CUSTOM_DSDT is not set
# CONFIG_ACPI_INITRD_TABLE_OVERRIDE is not set
# CONFIG_ACPI_DEBUG is not set
CONFIG_ACPI_PCI_SLOT=y
CONFIG_X86_PM_TIMER=y
CONFIG_ACPI_CONTAINER=y
# CONFIG_ACPI_HOTPLUG_MEMORY is not set
CONFIG_ACPI_SBS=m
CONFIG_ACPI_HED=m
# CONFIG_ACPI_CUSTOM_METHOD is not set
# CONFIG_ACPI_BGRT is not set
CONFIG_ACPI_APEI=y
# CONFIG_ACPI_APEI_GHES is not set
# CONFIG_ACPI_APEI_PCIEAER is not set
# CONFIG_ACPI_APEI_MEMORY_FAILURE is not set
CONFIG_ACPI_APEI_EINJ=m
CONFIG_ACPI_APEI_ERST_DEBUG=m
# CONFIG_ACPI_EXTLOG is not set
CONFIG_SFI=y
#
# CPU Frequency scaling
#
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_GOV_COMMON=y
CONFIG_CPU_FREQ_STAT=m
CONFIG_CPU_FREQ_STAT_DETAILS=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=m
CONFIG_CPU_FREQ_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_ONDEMAND=m
CONFIG_CPU_FREQ_GOV_CONSERVATIVE=m
#
# x86 CPU frequency scaling drivers
#
# CONFIG_X86_INTEL_PSTATE is not set
CONFIG_X86_PCC_CPUFREQ=m
CONFIG_X86_ACPI_CPUFREQ=m
CONFIG_X86_ACPI_CPUFREQ_CPB=y
CONFIG_X86_POWERNOW_K8=m
# CONFIG_X86_AMD_FREQ_SENSITIVITY is not set
# CONFIG_X86_SPEEDSTEP_CENTRINO is not set
CONFIG_X86_P4_CLOCKMOD=m
#
# shared options
#
CONFIG_X86_SPEEDSTEP_LIB=m
#
# CPU Idle
#
CONFIG_CPU_IDLE=y
# CONFIG_CPU_IDLE_MULTIPLE_DRIVERS is not set
CONFIG_CPU_IDLE_GOV_LADDER=y
CONFIG_CPU_IDLE_GOV_MENU=y
# CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED is not set
CONFIG_INTEL_IDLE=y
#
# Memory power savings
#
CONFIG_I7300_IDLE_IOAT_CHANNEL=y
CONFIG_I7300_IDLE=m
#
# Bus options (PCI etc.)
#
CONFIG_PCI=y
CONFIG_PCI_DIRECT=y
CONFIG_PCI_MMCONFIG=y
CONFIG_PCI_XEN=y
CONFIG_PCI_DOMAINS=y
CONFIG_PCIEPORTBUS=y
CONFIG_HOTPLUG_PCI_PCIE=y
CONFIG_PCIEAER=y
CONFIG_PCIE_ECRC=y
CONFIG_PCIEAER_INJECT=m
CONFIG_PCIEASPM=y
# CONFIG_PCIEASPM_DEBUG is not set
CONFIG_PCIEASPM_DEFAULT=y
# CONFIG_PCIEASPM_POWERSAVE is not set
# CONFIG_PCIEASPM_PERFORMANCE is not set
CONFIG_PCIE_PME=y
CONFIG_PCI_MSI=y
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_REALLOC_ENABLE_AUTO is not set
CONFIG_PCI_STUB=y
CONFIG_XEN_PCIDEV_FRONTEND=y
CONFIG_HT_IRQ=y
CONFIG_PCI_ATS=y
CONFIG_PCI_IOV=y
CONFIG_PCI_PRI=y
CONFIG_PCI_PASID=y
CONFIG_PCI_IOAPIC=y
CONFIG_PCI_LABEL=y
#
# PCI host controller drivers
#
CONFIG_ISA_DMA_API=y
CONFIG_AMD_NB=y
CONFIG_PCCARD=y
CONFIG_PCMCIA=y
CONFIG_PCMCIA_LOAD_CIS=y
CONFIG_CARDBUS=y
#
# PC-card bridges
#
CONFIG_YENTA=m
CONFIG_YENTA_O2=y
CONFIG_YENTA_RICOH=y
CONFIG_YENTA_TI=y
CONFIG_YENTA_ENE_TUNE=y
CONFIG_YENTA_TOSHIBA=y
CONFIG_PD6729=m
# CONFIG_I82092 is not set
CONFIG_PCCARD_NONSTATIC=y
CONFIG_HOTPLUG_PCI=y
CONFIG_HOTPLUG_PCI_ACPI=y
CONFIG_HOTPLUG_PCI_ACPI_IBM=m
# CONFIG_HOTPLUG_PCI_CPCI is not set
CONFIG_HOTPLUG_PCI_SHPC=m
CONFIG_RAPIDIO=y
# CONFIG_RAPIDIO_TSI721 is not set
CONFIG_RAPIDIO_DISC_TIMEOUT=30
# CONFIG_RAPIDIO_ENABLE_RX_TX_PORTS is not set
# CONFIG_RAPIDIO_DMA_ENGINE is not set
# CONFIG_RAPIDIO_DEBUG is not set
# CONFIG_RAPIDIO_ENUM_BASIC is not set
#
# RapidIO Switch drivers
#
# CONFIG_RAPIDIO_TSI57X is not set
# CONFIG_RAPIDIO_CPS_XX is not set
# CONFIG_RAPIDIO_TSI568 is not set
# CONFIG_RAPIDIO_CPS_GEN2 is not set
# CONFIG_X86_SYSFB is not set
#
# Executable file formats / Emulations
#
CONFIG_BINFMT_ELF=y
CONFIG_COMPAT_BINFMT_ELF=y
CONFIG_ARCH_BINFMT_ELF_RANDOMIZE_PIE=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_BINFMT_SCRIPT=y
# CONFIG_HAVE_AOUT is not set
CONFIG_BINFMT_MISC=y
CONFIG_COREDUMP=y
CONFIG_IA32_EMULATION=y
# CONFIG_IA32_AOUT is not set
# CONFIG_X86_X32 is not set
CONFIG_COMPAT=y
CONFIG_COMPAT_FOR_U64_ALIGNMENT=y
CONFIG_SYSVIPC_COMPAT=y
CONFIG_KEYS_COMPAT=y
CONFIG_X86_DEV_DMA_OPS=y
CONFIG_NET=y
CONFIG_COMPAT_NETLINK_MESSAGES=y
#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_DIAG is not set
CONFIG_UNIX=y
# CONFIG_UNIX_DIAG is not set
CONFIG_XFRM=y
CONFIG_XFRM_ALGO=y
CONFIG_XFRM_USER=y
CONFIG_XFRM_SUB_POLICY=y
CONFIG_XFRM_MIGRATE=y
CONFIG_XFRM_STATISTICS=y
CONFIG_XFRM_IPCOMP=m
CONFIG_NET_KEY=m
CONFIG_NET_KEY_MIGRATE=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_ADVANCED_ROUTER=y
# CONFIG_IP_FIB_TRIE_STATS is not set
CONFIG_IP_MULTIPLE_TABLES=y
CONFIG_IP_ROUTE_MULTIPATH=y
CONFIG_IP_ROUTE_VERBOSE=y
CONFIG_IP_ROUTE_CLASSID=y
CONFIG_IP_PNP=y
# CONFIG_IP_PNP_DHCP is not set
# CONFIG_IP_PNP_BOOTP is not set
# CONFIG_IP_PNP_RARP is not set
CONFIG_NET_IPIP=m
CONFIG_NET_IPGRE_DEMUX=m
CONFIG_NET_IP_TUNNEL=m
CONFIG_NET_IPGRE=m
CONFIG_NET_IPGRE_BROADCAST=y
CONFIG_IP_MROUTE=y
CONFIG_IP_MROUTE_MULTIPLE_TABLES=y
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
CONFIG_SYN_COOKIES=y
# CONFIG_NET_IPVTI is not set
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_IPCOMP=m
CONFIG_INET_XFRM_TUNNEL=m
CONFIG_INET_TUNNEL=m
CONFIG_INET_XFRM_MODE_TRANSPORT=m
CONFIG_INET_XFRM_MODE_TUNNEL=m
CONFIG_INET_XFRM_MODE_BEET=m
CONFIG_INET_LRO=y
CONFIG_INET_DIAG=m
CONFIG_INET_TCP_DIAG=m
# CONFIG_INET_UDP_DIAG is not set
CONFIG_TCP_CONG_ADVANCED=y
CONFIG_TCP_CONG_BIC=m
CONFIG_TCP_CONG_CUBIC=y
CONFIG_TCP_CONG_WESTWOOD=m
CONFIG_TCP_CONG_HTCP=m
CONFIG_TCP_CONG_HSTCP=m
CONFIG_TCP_CONG_HYBLA=m
CONFIG_TCP_CONG_VEGAS=m
CONFIG_TCP_CONG_SCALABLE=m
CONFIG_TCP_CONG_LP=m
CONFIG_TCP_CONG_VENO=m
CONFIG_TCP_CONG_YEAH=m
CONFIG_TCP_CONG_ILLINOIS=m
CONFIG_DEFAULT_CUBIC=y
# CONFIG_DEFAULT_RENO is not set
CONFIG_DEFAULT_TCP_CONG="cubic"
CONFIG_TCP_MD5SIG=y
CONFIG_IPV6=y
CONFIG_IPV6_ROUTER_PREF=y
CONFIG_IPV6_ROUTE_INFO=y
CONFIG_IPV6_OPTIMISTIC_DAD=y
CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
CONFIG_INET6_IPCOMP=m
CONFIG_IPV6_MIP6=m
CONFIG_INET6_XFRM_TUNNEL=m
CONFIG_INET6_TUNNEL=m
CONFIG_INET6_XFRM_MODE_TRANSPORT=m
CONFIG_INET6_XFRM_MODE_TUNNEL=m
CONFIG_INET6_XFRM_MODE_BEET=m
CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION=m
# CONFIG_IPV6_VTI is not set
CONFIG_IPV6_SIT=m
# CONFIG_IPV6_SIT_6RD is not set
CONFIG_IPV6_NDISC_NODETYPE=y
CONFIG_IPV6_TUNNEL=m
# CONFIG_IPV6_GRE is not set
CONFIG_IPV6_MULTIPLE_TABLES=y
# CONFIG_IPV6_SUBTREES is not set
CONFIG_IPV6_MROUTE=y
CONFIG_IPV6_MROUTE_MULTIPLE_TABLES=y
CONFIG_IPV6_PIMSM_V2=y
CONFIG_NETLABEL=y
CONFIG_NETWORK_SECMARK=y
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set
CONFIG_NETFILTER_ADVANCED=y
CONFIG_BRIDGE_NETFILTER=y
#
# Core Netfilter Configuration
#
CONFIG_NETFILTER_NETLINK=m
# CONFIG_NETFILTER_NETLINK_ACCT is not set
CONFIG_NETFILTER_NETLINK_QUEUE=m
CONFIG_NETFILTER_NETLINK_LOG=m
CONFIG_NF_CONNTRACK=m
CONFIG_NF_CONNTRACK_MARK=y
CONFIG_NF_CONNTRACK_SECMARK=y
# CONFIG_NF_CONNTRACK_ZONES is not set
CONFIG_NF_CONNTRACK_PROCFS=y
CONFIG_NF_CONNTRACK_EVENTS=y
# CONFIG_NF_CONNTRACK_TIMEOUT is not set
# CONFIG_NF_CONNTRACK_TIMESTAMP is not set
CONFIG_NF_CT_PROTO_DCCP=m
CONFIG_NF_CT_PROTO_GRE=m
CONFIG_NF_CT_PROTO_SCTP=m
CONFIG_NF_CT_PROTO_UDPLITE=m
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
CONFIG_NF_CONNTRACK_H323=m
CONFIG_NF_CONNTRACK_IRC=m
CONFIG_NF_CONNTRACK_BROADCAST=m
CONFIG_NF_CONNTRACK_NETBIOS_NS=m
CONFIG_NF_CONNTRACK_SNMP=m
CONFIG_NF_CONNTRACK_PPTP=m
CONFIG_NF_CONNTRACK_SANE=m
CONFIG_NF_CONNTRACK_SIP=m
CONFIG_NF_CONNTRACK_TFTP=m
CONFIG_NF_CT_NETLINK=m
# CONFIG_NF_CT_NETLINK_TIMEOUT is not set
# CONFIG_NETFILTER_NETLINK_QUEUE_CT is not set
# CONFIG_NF_TABLES is not set
CONFIG_NETFILTER_XTABLES=y
#
# Xtables combined modules
#
CONFIG_NETFILTER_XT_MARK=m
CONFIG_NETFILTER_XT_CONNMARK=m
CONFIG_NETFILTER_XT_SET=m
#
# Xtables targets
#
CONFIG_NETFILTER_XT_TARGET_AUDIT=m
CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
CONFIG_NETFILTER_XT_TARGET_CONNMARK=m
CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=m
CONFIG_NETFILTER_XT_TARGET_CT=m
CONFIG_NETFILTER_XT_TARGET_DSCP=m
CONFIG_NETFILTER_XT_TARGET_HL=m
# CONFIG_NETFILTER_XT_TARGET_HMARK is not set
CONFIG_NETFILTER_XT_TARGET_IDLETIMER=m
CONFIG_NETFILTER_XT_TARGET_LED=m
# CONFIG_NETFILTER_XT_TARGET_LOG is not set
CONFIG_NETFILTER_XT_TARGET_MARK=m
CONFIG_NETFILTER_XT_TARGET_NFLOG=m
CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
CONFIG_NETFILTER_XT_TARGET_NOTRACK=m
CONFIG_NETFILTER_XT_TARGET_RATEEST=m
CONFIG_NETFILTER_XT_TARGET_TEE=m
CONFIG_NETFILTER_XT_TARGET_TPROXY=m
CONFIG_NETFILTER_XT_TARGET_TRACE=m
CONFIG_NETFILTER_XT_TARGET_SECMARK=m
CONFIG_NETFILTER_XT_TARGET_TCPMSS=m
CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP=m
#
# Xtables matches
#
CONFIG_NETFILTER_XT_MATCH_ADDRTYPE=m
# CONFIG_NETFILTER_XT_MATCH_BPF is not set
# CONFIG_NETFILTER_XT_MATCH_CGROUP is not set
CONFIG_NETFILTER_XT_MATCH_CLUSTER=m
CONFIG_NETFILTER_XT_MATCH_COMMENT=m
CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m
# CONFIG_NETFILTER_XT_MATCH_CONNLABEL is not set
CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=m
CONFIG_NETFILTER_XT_MATCH_CONNMARK=m
CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
CONFIG_NETFILTER_XT_MATCH_CPU=m
CONFIG_NETFILTER_XT_MATCH_DCCP=m
CONFIG_NETFILTER_XT_MATCH_DEVGROUP=m
CONFIG_NETFILTER_XT_MATCH_DSCP=m
CONFIG_NETFILTER_XT_MATCH_ECN=m
CONFIG_NETFILTER_XT_MATCH_ESP=m
CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m
CONFIG_NETFILTER_XT_MATCH_HELPER=m
CONFIG_NETFILTER_XT_MATCH_HL=m
# CONFIG_NETFILTER_XT_MATCH_IPCOMP is not set
CONFIG_NETFILTER_XT_MATCH_IPRANGE=m
CONFIG_NETFILTER_XT_MATCH_IPVS=m
CONFIG_NETFILTER_XT_MATCH_L2TP=m
CONFIG_NETFILTER_XT_MATCH_LENGTH=m
CONFIG_NETFILTER_XT_MATCH_LIMIT=m
CONFIG_NETFILTER_XT_MATCH_MAC=m
CONFIG_NETFILTER_XT_MATCH_MARK=m
CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m
# CONFIG_NETFILTER_XT_MATCH_NFACCT is not set
CONFIG_NETFILTER_XT_MATCH_OSF=m
CONFIG_NETFILTER_XT_MATCH_OWNER=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
CONFIG_NETFILTER_XT_MATCH_QUOTA=m
CONFIG_NETFILTER_XT_MATCH_RATEEST=m
CONFIG_NETFILTER_XT_MATCH_REALM=m
CONFIG_NETFILTER_XT_MATCH_RECENT=m
CONFIG_NETFILTER_XT_MATCH_SCTP=m
CONFIG_NETFILTER_XT_MATCH_SOCKET=m
CONFIG_NETFILTER_XT_MATCH_STATE=m
CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
CONFIG_NETFILTER_XT_MATCH_STRING=m
CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
CONFIG_NETFILTER_XT_MATCH_TIME=m
CONFIG_NETFILTER_XT_MATCH_U32=m
CONFIG_IP_SET=m
CONFIG_IP_SET_MAX=256
CONFIG_IP_SET_BITMAP_IP=m
CONFIG_IP_SET_BITMAP_IPMAC=m
CONFIG_IP_SET_BITMAP_PORT=m
CONFIG_IP_SET_HASH_IP=m
CONFIG_IP_SET_HASH_IPPORT=m
CONFIG_IP_SET_HASH_IPPORTIP=m
CONFIG_IP_SET_HASH_IPPORTNET=m
# CONFIG_IP_SET_HASH_NETPORTNET is not set
CONFIG_IP_SET_HASH_NET=m
# CONFIG_IP_SET_HASH_NETNET is not set
CONFIG_IP_SET_HASH_NETPORT=m
# CONFIG_IP_SET_HASH_NETIFACE is not set
CONFIG_IP_SET_LIST_SET=m
CONFIG_IP_VS=m
CONFIG_IP_VS_IPV6=y
# CONFIG_IP_VS_DEBUG is not set
CONFIG_IP_VS_TAB_BITS=12
#
# IPVS transport protocol load balancing support
#
CONFIG_IP_VS_PROTO_TCP=y
CONFIG_IP_VS_PROTO_UDP=y
CONFIG_IP_VS_PROTO_AH_ESP=y
CONFIG_IP_VS_PROTO_ESP=y
CONFIG_IP_VS_PROTO_AH=y
CONFIG_IP_VS_PROTO_SCTP=y
#
# IPVS scheduler
#
CONFIG_IP_VS_RR=m
CONFIG_IP_VS_WRR=m
CONFIG_IP_VS_LC=m
CONFIG_IP_VS_WLC=m
CONFIG_IP_VS_LBLC=m
CONFIG_IP_VS_LBLCR=m
CONFIG_IP_VS_DH=m
CONFIG_IP_VS_SH=m
CONFIG_IP_VS_SED=m
CONFIG_IP_VS_NQ=m
#
# IPVS SH scheduler
#
CONFIG_IP_VS_SH_TAB_BITS=8
#
# IPVS application helper
#
CONFIG_IP_VS_NFCT=y
# CONFIG_IP_VS_PE_SIP is not set
#
# IP: Netfilter Configuration
#
CONFIG_NF_DEFRAG_IPV4=m
CONFIG_NF_CONNTRACK_IPV4=m
# CONFIG_NF_CONNTRACK_PROC_COMPAT is not set
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_AH=m
CONFIG_IP_NF_MATCH_ECN=m
# CONFIG_IP_NF_MATCH_RPFILTER is not set
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
# CONFIG_IP_NF_TARGET_SYNPROXY is not set
CONFIG_IP_NF_TARGET_ULOG=m
# CONFIG_NF_NAT_IPV4 is not set
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_TARGET_CLUSTERIP=m
CONFIG_IP_NF_TARGET_ECN=m
CONFIG_IP_NF_TARGET_TTL=m
CONFIG_IP_NF_RAW=m
CONFIG_IP_NF_SECURITY=m
CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m
#
# IPv6: Netfilter Configuration
#
CONFIG_NF_DEFRAG_IPV6=m
CONFIG_NF_CONNTRACK_IPV6=m
CONFIG_IP6_NF_IPTABLES=m
CONFIG_IP6_NF_MATCH_AH=m
CONFIG_IP6_NF_MATCH_EUI64=m
CONFIG_IP6_NF_MATCH_FRAG=m
CONFIG_IP6_NF_MATCH_OPTS=m
CONFIG_IP6_NF_MATCH_HL=m
CONFIG_IP6_NF_MATCH_IPV6HEADER=m
CONFIG_IP6_NF_MATCH_MH=m
# CONFIG_IP6_NF_MATCH_RPFILTER is not set
CONFIG_IP6_NF_MATCH_RT=m
CONFIG_IP6_NF_TARGET_HL=m
CONFIG_IP6_NF_FILTER=m
CONFIG_IP6_NF_TARGET_REJECT=m
# CONFIG_IP6_NF_TARGET_SYNPROXY is not set
CONFIG_IP6_NF_MANGLE=m
CONFIG_IP6_NF_RAW=m
CONFIG_IP6_NF_SECURITY=m
# CONFIG_NF_NAT_IPV6 is not set
CONFIG_BRIDGE_NF_EBTABLES=m
CONFIG_BRIDGE_EBT_BROUTE=m
CONFIG_BRIDGE_EBT_T_FILTER=m
CONFIG_BRIDGE_EBT_T_NAT=m
CONFIG_BRIDGE_EBT_802_3=m
CONFIG_BRIDGE_EBT_AMONG=m
CONFIG_BRIDGE_EBT_ARP=m
CONFIG_BRIDGE_EBT_IP=m
CONFIG_BRIDGE_EBT_IP6=m
CONFIG_BRIDGE_EBT_LIMIT=m
CONFIG_BRIDGE_EBT_MARK=m
CONFIG_BRIDGE_EBT_PKTTYPE=m
CONFIG_BRIDGE_EBT_STP=m
CONFIG_BRIDGE_EBT_VLAN=m
CONFIG_BRIDGE_EBT_ARPREPLY=m
CONFIG_BRIDGE_EBT_DNAT=m
CONFIG_BRIDGE_EBT_MARK_T=m
CONFIG_BRIDGE_EBT_REDIRECT=m
CONFIG_BRIDGE_EBT_SNAT=m
CONFIG_BRIDGE_EBT_LOG=m
CONFIG_BRIDGE_EBT_ULOG=m
CONFIG_BRIDGE_EBT_NFLOG=m
CONFIG_IP_DCCP=m
CONFIG_INET_DCCP_DIAG=m
#
# DCCP CCIDs Configuration
#
# CONFIG_IP_DCCP_CCID2_DEBUG is not set
CONFIG_IP_DCCP_CCID3=y
# CONFIG_IP_DCCP_CCID3_DEBUG is not set
CONFIG_IP_DCCP_TFRC_LIB=y
#
# DCCP Kernel Hacking
#
# CONFIG_IP_DCCP_DEBUG is not set
CONFIG_NET_DCCPPROBE=m
CONFIG_IP_SCTP=m
CONFIG_NET_SCTPPROBE=m
# CONFIG_SCTP_DBG_OBJCNT is not set
CONFIG_SCTP_DEFAULT_COOKIE_HMAC_MD5=y
# CONFIG_SCTP_DEFAULT_COOKIE_HMAC_SHA1 is not set
# CONFIG_SCTP_DEFAULT_COOKIE_HMAC_NONE is not set
CONFIG_SCTP_COOKIE_HMAC_MD5=y
# CONFIG_SCTP_COOKIE_HMAC_SHA1 is not set
CONFIG_RDS=m
CONFIG_RDS_RDMA=m
CONFIG_RDS_TCP=m
# CONFIG_RDS_DEBUG is not set
# CONFIG_TIPC is not set
CONFIG_ATM=m
CONFIG_ATM_CLIP=m
# CONFIG_ATM_CLIP_NO_ICMP is not set
CONFIG_ATM_LANE=m
# CONFIG_ATM_MPOA is not set
CONFIG_ATM_BR2684=m
# CONFIG_ATM_BR2684_IPFILTER is not set
CONFIG_L2TP=m
CONFIG_L2TP_DEBUGFS=m
CONFIG_L2TP_V3=y
CONFIG_L2TP_IP=m
CONFIG_L2TP_ETH=m
CONFIG_STP=m
CONFIG_GARP=m
CONFIG_BRIDGE=m
CONFIG_BRIDGE_IGMP_SNOOPING=y
# CONFIG_BRIDGE_VLAN_FILTERING is not set
CONFIG_HAVE_NET_DSA=y
CONFIG_NET_DSA=y
CONFIG_NET_DSA_TAG_DSA=y
CONFIG_NET_DSA_TAG_EDSA=y
CONFIG_NET_DSA_TAG_TRAILER=y
CONFIG_VLAN_8021Q=m
CONFIG_VLAN_8021Q_GVRP=y
# CONFIG_VLAN_8021Q_MVRP is not set
# CONFIG_DECNET is not set
CONFIG_LLC=m
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
CONFIG_PHONET=m
CONFIG_IEEE802154=m
# CONFIG_IEEE802154_6LOWPAN is not set
CONFIG_6LOWPAN_IPHC=m
# CONFIG_MAC802154 is not set
CONFIG_NET_SCHED=y
#
# Queueing/Scheduling
#
CONFIG_NET_SCH_CBQ=m
CONFIG_NET_SCH_HTB=m
CONFIG_NET_SCH_HFSC=m
CONFIG_NET_SCH_ATM=m
CONFIG_NET_SCH_PRIO=m
CONFIG_NET_SCH_MULTIQ=m
CONFIG_NET_SCH_RED=m
CONFIG_NET_SCH_SFB=m
CONFIG_NET_SCH_SFQ=m
CONFIG_NET_SCH_TEQL=m
CONFIG_NET_SCH_TBF=m
CONFIG_NET_SCH_GRED=m
CONFIG_NET_SCH_DSMARK=m
CONFIG_NET_SCH_NETEM=m
CONFIG_NET_SCH_DRR=m
CONFIG_NET_SCH_MQPRIO=m
CONFIG_NET_SCH_CHOKE=m
# CONFIG_NET_SCH_QFQ is not set
# CONFIG_NET_SCH_CODEL is not set
# CONFIG_NET_SCH_FQ_CODEL is not set
# CONFIG_NET_SCH_FQ is not set
# CONFIG_NET_SCH_HHF is not set
# CONFIG_NET_SCH_PIE is not set
CONFIG_NET_SCH_INGRESS=m
# CONFIG_NET_SCH_PLUG is not set
#
# Classification
#
CONFIG_NET_CLS=y
CONFIG_NET_CLS_BASIC=m
CONFIG_NET_CLS_TCINDEX=m
CONFIG_NET_CLS_ROUTE4=m
CONFIG_NET_CLS_FW=m
CONFIG_NET_CLS_U32=m
CONFIG_CLS_U32_PERF=y
CONFIG_CLS_U32_MARK=y
CONFIG_NET_CLS_RSVP=m
CONFIG_NET_CLS_RSVP6=m
CONFIG_NET_CLS_FLOW=m
CONFIG_NET_CLS_CGROUP=y
# CONFIG_NET_CLS_BPF is not set
CONFIG_NET_EMATCH=y
CONFIG_NET_EMATCH_STACK=32
CONFIG_NET_EMATCH_CMP=m
CONFIG_NET_EMATCH_NBYTE=m
CONFIG_NET_EMATCH_U32=m
CONFIG_NET_EMATCH_META=m
CONFIG_NET_EMATCH_TEXT=m
# CONFIG_NET_EMATCH_CANID is not set
# CONFIG_NET_EMATCH_IPSET is not set
CONFIG_NET_CLS_ACT=y
CONFIG_NET_ACT_POLICE=m
CONFIG_NET_ACT_GACT=m
CONFIG_GACT_PROB=y
CONFIG_NET_ACT_MIRRED=m
CONFIG_NET_ACT_IPT=m
CONFIG_NET_ACT_NAT=m
CONFIG_NET_ACT_PEDIT=m
CONFIG_NET_ACT_SIMP=m
CONFIG_NET_ACT_SKBEDIT=m
CONFIG_NET_ACT_CSUM=m
CONFIG_NET_CLS_IND=y
CONFIG_NET_SCH_FIFO=y
CONFIG_DCB=y
CONFIG_DNS_RESOLVER=y
CONFIG_BATMAN_ADV=m
CONFIG_BATMAN_ADV_BLA=y
# CONFIG_BATMAN_ADV_DAT is not set
# CONFIG_BATMAN_ADV_NC is not set
# CONFIG_BATMAN_ADV_DEBUG is not set
# CONFIG_OPENVSWITCH is not set
# CONFIG_VSOCKETS is not set
# CONFIG_NETLINK_MMAP is not set
# CONFIG_NETLINK_DIAG is not set
# CONFIG_NET_MPLS_GSO is not set
# CONFIG_HSR is not set
CONFIG_RPS=y
CONFIG_RFS_ACCEL=y
CONFIG_XPS=y
# CONFIG_CGROUP_NET_PRIO is not set
CONFIG_CGROUP_NET_CLASSID=y
CONFIG_NET_RX_BUSY_POLL=y
CONFIG_BQL=y
CONFIG_BPF_JIT=y
CONFIG_NET_FLOW_LIMIT=y
#
# Network testing
#
CONFIG_NET_PKTGEN=m
# CONFIG_NET_TCPPROBE is not set
CONFIG_NET_DROP_MONITOR=y
# CONFIG_HAMRADIO is not set
CONFIG_CAN=m
CONFIG_CAN_RAW=m
CONFIG_CAN_BCM=m
CONFIG_CAN_GW=m
#
# CAN Device Drivers
#
CONFIG_CAN_VCAN=m
CONFIG_CAN_SLCAN=m
CONFIG_CAN_DEV=m
CONFIG_CAN_CALC_BITTIMING=y
# CONFIG_CAN_LEDS is not set
CONFIG_PCH_CAN=m
CONFIG_CAN_SJA1000=m
# CONFIG_CAN_SJA1000_ISA is not set
CONFIG_CAN_SJA1000_PLATFORM=m
# CONFIG_CAN_EMS_PCMCIA is not set
CONFIG_CAN_EMS_PCI=m
# CONFIG_CAN_PEAK_PCMCIA is not set
# CONFIG_CAN_PEAK_PCI is not set
CONFIG_CAN_KVASER_PCI=m
CONFIG_CAN_PLX_PCI=m
CONFIG_CAN_C_CAN=m
CONFIG_CAN_C_CAN_PLATFORM=m
# CONFIG_CAN_C_CAN_PCI is not set
# CONFIG_CAN_CC770 is not set
#
# CAN USB interfaces
#
CONFIG_CAN_EMS_USB=m
CONFIG_CAN_ESD_USB2=m
# CONFIG_CAN_KVASER_USB is not set
# CONFIG_CAN_PEAK_USB is not set
# CONFIG_CAN_8DEV_USB is not set
CONFIG_CAN_SOFTING=m
CONFIG_CAN_SOFTING_CS=m
# CONFIG_CAN_DEBUG_DEVICES is not set
# CONFIG_IRDA is not set
CONFIG_BT=m
CONFIG_BT_RFCOMM=m
CONFIG_BT_RFCOMM_TTY=y
CONFIG_BT_BNEP=m
CONFIG_BT_BNEP_MC_FILTER=y
CONFIG_BT_BNEP_PROTO_FILTER=y
CONFIG_BT_CMTP=m
CONFIG_BT_HIDP=m
#
# Bluetooth device drivers
#
CONFIG_BT_HCIBTUSB=m
CONFIG_BT_HCIBTSDIO=m
CONFIG_BT_HCIUART=m
CONFIG_BT_HCIUART_H4=y
CONFIG_BT_HCIUART_BCSP=y
CONFIG_BT_HCIUART_ATH3K=y
CONFIG_BT_HCIUART_LL=y
# CONFIG_BT_HCIUART_3WIRE is not set
CONFIG_BT_HCIBCM203X=m
CONFIG_BT_HCIBPA10X=m
CONFIG_BT_HCIBFUSB=m
CONFIG_BT_HCIDTL1=m
CONFIG_BT_HCIBT3C=m
CONFIG_BT_HCIBLUECARD=m
CONFIG_BT_HCIBTUART=m
CONFIG_BT_HCIVHCI=m
CONFIG_BT_MRVL=m
CONFIG_BT_MRVL_SDIO=m
CONFIG_BT_ATH3K=m
# CONFIG_AF_RXRPC is not set
CONFIG_FIB_RULES=y
CONFIG_WIRELESS=y
CONFIG_WIRELESS_EXT=y
CONFIG_WEXT_CORE=y
CONFIG_WEXT_PROC=y
CONFIG_WEXT_SPY=y
CONFIG_WEXT_PRIV=y
CONFIG_CFG80211=m
# CONFIG_NL80211_TESTMODE is not set
# CONFIG_CFG80211_DEVELOPER_WARNINGS is not set
# CONFIG_CFG80211_REG_DEBUG is not set
CONFIG_CFG80211_DEFAULT_PS=y
# CONFIG_CFG80211_DEBUGFS is not set
# CONFIG_CFG80211_INTERNAL_REGDB is not set
CONFIG_CFG80211_WEXT=y
CONFIG_LIB80211=m
CONFIG_LIB80211_CRYPT_WEP=m
CONFIG_LIB80211_CRYPT_CCMP=m
CONFIG_LIB80211_CRYPT_TKIP=m
# CONFIG_LIB80211_DEBUG is not set
CONFIG_MAC80211=m
CONFIG_MAC80211_HAS_RC=y
CONFIG_MAC80211_RC_MINSTREL=y
CONFIG_MAC80211_RC_MINSTREL_HT=y
CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT="minstrel_ht"
CONFIG_MAC80211_MESH=y
CONFIG_MAC80211_LEDS=y
# CONFIG_MAC80211_DEBUGFS is not set
# CONFIG_MAC80211_MESSAGE_TRACING is not set
# CONFIG_MAC80211_DEBUG_MENU is not set
CONFIG_WIMAX=m
CONFIG_WIMAX_DEBUG_LEVEL=8
CONFIG_RFKILL=m
CONFIG_RFKILL_LEDS=y
CONFIG_RFKILL_INPUT=y
# CONFIG_RFKILL_REGULATOR is not set
# CONFIG_RFKILL_GPIO is not set
CONFIG_NET_9P=m
CONFIG_NET_9P_VIRTIO=m
CONFIG_NET_9P_RDMA=m
# CONFIG_NET_9P_DEBUG is not set
# CONFIG_CAIF is not set
CONFIG_CEPH_LIB=m
# CONFIG_CEPH_LIB_PRETTYDEBUG is not set
# CONFIG_CEPH_LIB_USE_DNS_RESOLVER is not set
# CONFIG_NFC is not set
CONFIG_HAVE_BPF_JIT=y
#
# Device Drivers
#
#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH=""
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
# CONFIG_FIRMWARE_IN_KERNEL is not set
CONFIG_EXTRA_FIRMWARE=""
CONFIG_FW_LOADER_USER_HELPER=y
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
CONFIG_SYS_HYPERVISOR=y
# CONFIG_GENERIC_CPU_DEVICES is not set
CONFIG_REGMAP=y
CONFIG_REGMAP_I2C=m
CONFIG_DMA_SHARED_BUFFER=y
#
# Bus devices
#
CONFIG_CONNECTOR=y
CONFIG_PROC_EVENTS=y
CONFIG_MTD=y
# CONFIG_MTD_TESTS is not set
CONFIG_MTD_REDBOOT_PARTS=m
CONFIG_MTD_REDBOOT_DIRECTORY_BLOCK=-1
# CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED is not set
# CONFIG_MTD_REDBOOT_PARTS_READONLY is not set
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_AR7_PARTS=m
#
# User Modules And Translation Layers
#
CONFIG_MTD_BLKDEVS=m
CONFIG_MTD_BLOCK=m
CONFIG_MTD_BLOCK_RO=m
CONFIG_FTL=m
CONFIG_NFTL=m
CONFIG_NFTL_RW=y
# CONFIG_INFTL is not set
CONFIG_RFD_FTL=m
CONFIG_SSFDC=m
CONFIG_SM_FTL=m
CONFIG_MTD_OOPS=m
CONFIG_MTD_SWAP=m
#
# RAM/ROM/Flash chip drivers
#
CONFIG_MTD_CFI=m
CONFIG_MTD_JEDECPROBE=m
CONFIG_MTD_GEN_PROBE=m
# CONFIG_MTD_CFI_ADV_OPTIONS is not set
CONFIG_MTD_MAP_BANK_WIDTH_1=y
CONFIG_MTD_MAP_BANK_WIDTH_2=y
CONFIG_MTD_MAP_BANK_WIDTH_4=y
# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
CONFIG_MTD_CFI_I1=y
CONFIG_MTD_CFI_I2=y
# CONFIG_MTD_CFI_I4 is not set
# CONFIG_MTD_CFI_I8 is not set
CONFIG_MTD_CFI_INTELEXT=m
CONFIG_MTD_CFI_AMDSTD=m
CONFIG_MTD_CFI_STAA=m
CONFIG_MTD_CFI_UTIL=m
CONFIG_MTD_RAM=m
CONFIG_MTD_ROM=m
CONFIG_MTD_ABSENT=m
#
# Mapping drivers for chip access
#
# CONFIG_MTD_COMPLEX_MAPPINGS is not set
# CONFIG_MTD_PHYSMAP is not set
CONFIG_MTD_SC520CDP=m
CONFIG_MTD_NETSC520=m
CONFIG_MTD_TS5500=m
# CONFIG_MTD_AMD76XROM is not set
# CONFIG_MTD_ICHXROM is not set
CONFIG_MTD_ESB2ROM=m
CONFIG_MTD_CK804XROM=m
CONFIG_MTD_SCB2_FLASH=m
# CONFIG_MTD_NETtel is not set
# CONFIG_MTD_L440GX is not set
# CONFIG_MTD_INTEL_VR_NOR is not set
# CONFIG_MTD_PLATRAM is not set
#
# Self-contained MTD device drivers
#
# CONFIG_MTD_PMC551 is not set
# CONFIG_MTD_SLRAM is not set
# CONFIG_MTD_PHRAM is not set
CONFIG_MTD_MTDRAM=m
CONFIG_MTDRAM_TOTAL_SIZE=4096
CONFIG_MTDRAM_ERASE_SIZE=128
CONFIG_MTD_BLOCK2MTD=m
#
# Disk-On-Chip Device Drivers
#
# CONFIG_MTD_DOCG3 is not set
CONFIG_MTD_NAND_ECC=m
CONFIG_MTD_NAND_ECC_SMC=y
CONFIG_MTD_NAND=m
CONFIG_MTD_NAND_BCH=m
CONFIG_MTD_NAND_ECC_BCH=y
# CONFIG_MTD_SM_COMMON is not set
# CONFIG_MTD_NAND_DENALI is not set
# CONFIG_MTD_NAND_GPIO is not set
CONFIG_MTD_NAND_IDS=m
# CONFIG_MTD_NAND_RICOH is not set
CONFIG_MTD_NAND_DISKONCHIP=m
# CONFIG_MTD_NAND_DISKONCHIP_PROBE_ADVANCED is not set
CONFIG_MTD_NAND_DISKONCHIP_PROBE_ADDRESS=0
# CONFIG_MTD_NAND_DISKONCHIP_BBTWRITE is not set
# CONFIG_MTD_NAND_DOCG4 is not set
# CONFIG_MTD_NAND_CAFE is not set
CONFIG_MTD_NAND_NANDSIM=m
# CONFIG_MTD_NAND_PLATFORM is not set
# CONFIG_MTD_ONENAND is not set
#
# LPDDR flash memory drivers
#
CONFIG_MTD_LPDDR=m
CONFIG_MTD_QINFO_PROBE=m
CONFIG_MTD_UBI=m
CONFIG_MTD_UBI_WL_THRESHOLD=4096
CONFIG_MTD_UBI_BEB_LIMIT=20
# CONFIG_MTD_UBI_FASTMAP is not set
# CONFIG_MTD_UBI_GLUEBI is not set
CONFIG_PARPORT=m
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
CONFIG_PARPORT_PC=m
CONFIG_PARPORT_SERIAL=m
# CONFIG_PARPORT_PC_FIFO is not set
# CONFIG_PARPORT_PC_SUPERIO is not set
CONFIG_PARPORT_PC_PCMCIA=m
# CONFIG_PARPORT_GSC is not set
# CONFIG_PARPORT_AX88796 is not set
CONFIG_PARPORT_1284=y
CONFIG_PARPORT_NOT_PC=y
CONFIG_PNP=y
# CONFIG_PNP_DEBUG_MESSAGES is not set
#
# Protocols
#
CONFIG_PNPACPI=y
CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_NULL_BLK is not set
CONFIG_BLK_DEV_FD=m
# CONFIG_PARIDE is not set
# CONFIG_BLK_DEV_PCIESSD_MTIP32XX is not set
CONFIG_BLK_CPQ_CISS_DA=m
CONFIG_CISS_SCSI_TAPE=y
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_LOOP_MIN_COUNT=8
CONFIG_BLK_DEV_CRYPTOLOOP=m
CONFIG_BLK_DEV_DRBD=m
CONFIG_DRBD_FAULT_INJECTION=y
CONFIG_BLK_DEV_NBD=m
# CONFIG_BLK_DEV_NVME is not set
# CONFIG_BLK_DEV_SKD is not set
CONFIG_BLK_DEV_OSD=m
CONFIG_BLK_DEV_SX8=m
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=16384
# CONFIG_BLK_DEV_XIP is not set
CONFIG_CDROM_PKTCDVD=m
CONFIG_CDROM_PKTCDVD_BUFFERS=8
# CONFIG_CDROM_PKTCDVD_WCACHE is not set
CONFIG_ATA_OVER_ETH=m
CONFIG_XEN_BLKDEV_FRONTEND=m
CONFIG_XEN_BLKDEV_BACKEND=m
CONFIG_VIRTIO_BLK=m
# CONFIG_BLK_DEV_HD is not set
CONFIG_BLK_DEV_RBD=m
# CONFIG_BLK_DEV_RSXX is not set
#
# Misc devices
#
# CONFIG_SENSORS_LIS3LV02D is not set
CONFIG_AD525X_DPOT=m
CONFIG_AD525X_DPOT_I2C=m
# CONFIG_DUMMY_IRQ is not set
# CONFIG_IBM_ASM is not set
# CONFIG_PHANTOM is not set
CONFIG_SGI_IOC4=m
CONFIG_TIFM_CORE=m
CONFIG_TIFM_7XX1=m
CONFIG_ICS932S401=m
# CONFIG_ATMEL_SSC is not set
CONFIG_ENCLOSURE_SERVICES=m
CONFIG_HP_ILO=m
CONFIG_APDS9802ALS=m
CONFIG_ISL29003=m
CONFIG_ISL29020=m
CONFIG_SENSORS_TSL2550=m
CONFIG_SENSORS_BH1780=m
CONFIG_SENSORS_BH1770=m
CONFIG_SENSORS_APDS990X=m
CONFIG_HMC6352=m
# CONFIG_DS1682 is not set
# CONFIG_VMWARE_BALLOON is not set
# CONFIG_BMP085_I2C is not set
# CONFIG_PCH_PHUB is not set
# CONFIG_USB_SWITCH_FSA9480 is not set
# CONFIG_SRAM is not set
# CONFIG_C2PORT is not set
#
# EEPROM support
#
CONFIG_EEPROM_AT24=m
CONFIG_EEPROM_LEGACY=m
CONFIG_EEPROM_MAX6875=m
CONFIG_EEPROM_93CX6=m
CONFIG_CB710_CORE=m
# CONFIG_CB710_DEBUG is not set
CONFIG_CB710_DEBUG_ASSUMPTIONS=y
#
# Texas Instruments shared transport line discipline
#
# CONFIG_TI_ST is not set
# CONFIG_SENSORS_LIS3_I2C is not set
#
# Altera FPGA firmware download module
#
# CONFIG_ALTERA_STAPL is not set
# CONFIG_INTEL_MEI is not set
# CONFIG_INTEL_MEI_ME is not set
# CONFIG_VMWARE_VMCI is not set
#
# Intel MIC Host Driver
#
# CONFIG_INTEL_MIC_HOST is not set
#
# Intel MIC Card Driver
#
# CONFIG_INTEL_MIC_CARD is not set
# CONFIG_GENWQE is not set
CONFIG_HAVE_IDE=y
# CONFIG_IDE is not set
#
# SCSI device support
#
CONFIG_SCSI_MOD=y
CONFIG_RAID_ATTRS=m
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
CONFIG_SCSI_TGT=m
CONFIG_SCSI_NETLINK=y
CONFIG_SCSI_PROC_FS=y
#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=m
CONFIG_CHR_DEV_ST=m
CONFIG_CHR_DEV_OSST=m
CONFIG_BLK_DEV_SR=m
CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_CHR_DEV_SG=m
CONFIG_CHR_DEV_SCH=m
CONFIG_SCSI_ENCLOSURE=m
CONFIG_SCSI_MULTI_LUN=y
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
CONFIG_SCSI_SCAN_ASYNC=y
#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=m
CONFIG_SCSI_FC_ATTRS=m
CONFIG_SCSI_FC_TGT_ATTRS=y
CONFIG_SCSI_ISCSI_ATTRS=m
CONFIG_SCSI_SAS_ATTRS=m
CONFIG_SCSI_SAS_LIBSAS=m
CONFIG_SCSI_SAS_ATA=y
CONFIG_SCSI_SAS_HOST_SMP=y
CONFIG_SCSI_SRP_ATTRS=m
CONFIG_SCSI_SRP_TGT_ATTRS=y
CONFIG_SCSI_LOWLEVEL=y
CONFIG_ISCSI_TCP=m
CONFIG_ISCSI_BOOT_SYSFS=m
CONFIG_SCSI_CXGB3_ISCSI=m
CONFIG_SCSI_CXGB4_ISCSI=m
CONFIG_SCSI_BNX2_ISCSI=m
CONFIG_SCSI_BNX2X_FCOE=m
CONFIG_BE2ISCSI=m
CONFIG_BLK_DEV_3W_XXXX_RAID=m
CONFIG_SCSI_HPSA=m
CONFIG_SCSI_3W_9XXX=m
CONFIG_SCSI_3W_SAS=m
# CONFIG_SCSI_ACARD is not set
CONFIG_SCSI_AACRAID=m
CONFIG_SCSI_AIC7XXX=m
CONFIG_AIC7XXX_CMDS_PER_DEVICE=4
CONFIG_AIC7XXX_RESET_DELAY_MS=15000
# CONFIG_AIC7XXX_DEBUG_ENABLE is not set
CONFIG_AIC7XXX_DEBUG_MASK=0
# CONFIG_AIC7XXX_REG_PRETTY_PRINT is not set
CONFIG_SCSI_AIC79XX=m
CONFIG_AIC79XX_CMDS_PER_DEVICE=4
CONFIG_AIC79XX_RESET_DELAY_MS=15000
# CONFIG_AIC79XX_DEBUG_ENABLE is not set
CONFIG_AIC79XX_DEBUG_MASK=0
# CONFIG_AIC79XX_REG_PRETTY_PRINT is not set
CONFIG_SCSI_AIC94XX=m
# CONFIG_AIC94XX_DEBUG is not set
CONFIG_SCSI_MVSAS=m
# CONFIG_SCSI_MVSAS_DEBUG is not set
# CONFIG_SCSI_MVSAS_TASKLET is not set
# CONFIG_SCSI_MVUMI is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
CONFIG_SCSI_ARCMSR=m
# CONFIG_SCSI_ESAS2R is not set
CONFIG_MEGARAID_NEWGEN=y
CONFIG_MEGARAID_MM=m
CONFIG_MEGARAID_MAILBOX=m
# CONFIG_MEGARAID_LEGACY is not set
CONFIG_MEGARAID_SAS=m
CONFIG_SCSI_MPT2SAS=m
CONFIG_SCSI_MPT2SAS_MAX_SGE=128
CONFIG_SCSI_MPT2SAS_LOGGING=y
# CONFIG_SCSI_MPT3SAS is not set
# CONFIG_SCSI_UFSHCD is not set
CONFIG_SCSI_HPTIOP=m
# CONFIG_SCSI_BUSLOGIC is not set
CONFIG_VMWARE_PVSCSI=m
CONFIG_LIBFC=m
CONFIG_LIBFCOE=m
CONFIG_FCOE=m
CONFIG_FCOE_FNIC=m
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_EATA is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GDTH is not set
CONFIG_SCSI_ISCI=m
CONFIG_SCSI_IPS=m
CONFIG_SCSI_INITIO=m
# CONFIG_SCSI_INIA100 is not set
CONFIG_SCSI_PPA=m
CONFIG_SCSI_IMM=m
# CONFIG_SCSI_IZIP_EPP16 is not set
# CONFIG_SCSI_IZIP_SLOW_CTR is not set
CONFIG_SCSI_STEX=m
CONFIG_SCSI_SYM53C8XX_2=m
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
CONFIG_SCSI_SYM53C8XX_MMIO=y
# CONFIG_SCSI_IPR is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
CONFIG_SCSI_QLA_FC=m
# CONFIG_TCM_QLA2XXX is not set
CONFIG_SCSI_QLA_ISCSI=m
CONFIG_SCSI_LPFC=m
# CONFIG_SCSI_LPFC_DEBUG_FS is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_DC390T is not set
CONFIG_SCSI_DEBUG=m
CONFIG_SCSI_PMCRAID=m
# CONFIG_SCSI_PM8001 is not set
CONFIG_SCSI_SRP=m
CONFIG_SCSI_BFA_FC=m
# CONFIG_SCSI_VIRTIO is not set
# CONFIG_SCSI_CHELSIO_FCOE is not set
CONFIG_SCSI_LOWLEVEL_PCMCIA=y
# CONFIG_PCMCIA_AHA152X is not set
# CONFIG_PCMCIA_FDOMAIN is not set
# CONFIG_PCMCIA_QLOGIC is not set
# CONFIG_PCMCIA_SYM53C500 is not set
CONFIG_SCSI_DH=y
CONFIG_SCSI_DH_RDAC=m
CONFIG_SCSI_DH_HP_SW=m
CONFIG_SCSI_DH_EMC=m
CONFIG_SCSI_DH_ALUA=m
CONFIG_SCSI_OSD_INITIATOR=m
CONFIG_SCSI_OSD_ULD=m
CONFIG_SCSI_OSD_DPRINT_SENSE=1
# CONFIG_SCSI_OSD_DEBUG is not set
CONFIG_ATA=y
# CONFIG_ATA_NONSTANDARD is not set
CONFIG_ATA_VERBOSE_ERROR=y
CONFIG_ATA_ACPI=y
# CONFIG_SATA_ZPODD is not set
CONFIG_SATA_PMP=y
#
# Controllers with non-SFF native interface
#
CONFIG_SATA_AHCI=m
CONFIG_SATA_AHCI_PLATFORM=m
CONFIG_SATA_INIC162X=m
CONFIG_SATA_ACARD_AHCI=m
CONFIG_SATA_SIL24=m
CONFIG_ATA_SFF=y
#
# SFF controllers with custom DMA interface
#
CONFIG_PDC_ADMA=m
CONFIG_SATA_QSTOR=m
CONFIG_SATA_SX4=m
CONFIG_ATA_BMDMA=y
#
# SATA SFF controllers with BMDMA
#
CONFIG_ATA_PIIX=m
# CONFIG_SATA_HIGHBANK is not set
CONFIG_SATA_MV=m
CONFIG_SATA_NV=m
CONFIG_SATA_PROMISE=m
# CONFIG_SATA_RCAR is not set
CONFIG_SATA_SIL=m
CONFIG_SATA_SIS=m
CONFIG_SATA_SVW=m
CONFIG_SATA_ULI=m
CONFIG_SATA_VIA=m
CONFIG_SATA_VITESSE=m
#
# PATA SFF controllers with BMDMA
#
CONFIG_PATA_ALI=m
CONFIG_PATA_AMD=m
CONFIG_PATA_ARASAN_CF=m
CONFIG_PATA_ARTOP=m
CONFIG_PATA_ATIIXP=m
CONFIG_PATA_ATP867X=m
CONFIG_PATA_CMD64X=m
# CONFIG_PATA_CS5520 is not set
# CONFIG_PATA_CS5530 is not set
CONFIG_PATA_CS5536=m
# CONFIG_PATA_CYPRESS is not set
# CONFIG_PATA_EFAR is not set
CONFIG_PATA_HPT366=m
CONFIG_PATA_HPT37X=m
CONFIG_PATA_HPT3X2N=m
CONFIG_PATA_HPT3X3=m
# CONFIG_PATA_HPT3X3_DMA is not set
CONFIG_PATA_IT8213=m
CONFIG_PATA_IT821X=m
CONFIG_PATA_JMICRON=m
CONFIG_PATA_MARVELL=m
CONFIG_PATA_NETCELL=m
CONFIG_PATA_NINJA32=m
# CONFIG_PATA_NS87415 is not set
CONFIG_PATA_OLDPIIX=m
# CONFIG_PATA_OPTIDMA is not set
CONFIG_PATA_PDC2027X=m
CONFIG_PATA_PDC_OLD=m
# CONFIG_PATA_RADISYS is not set
CONFIG_PATA_RDC=m
# CONFIG_PATA_SC1200 is not set
CONFIG_PATA_SCH=m
CONFIG_PATA_SERVERWORKS=m
CONFIG_PATA_SIL680=m
CONFIG_PATA_SIS=m
CONFIG_PATA_TOSHIBA=m
# CONFIG_PATA_TRIFLEX is not set
CONFIG_PATA_VIA=m
# CONFIG_PATA_WINBOND is not set
#
# PIO-only SFF controllers
#
# CONFIG_PATA_CMD640_PCI is not set
# CONFIG_PATA_MPIIX is not set
# CONFIG_PATA_NS87410 is not set
# CONFIG_PATA_OPTI is not set
CONFIG_PATA_PCMCIA=m
# CONFIG_PATA_RZ1000 is not set
#
# Generic fallback / legacy drivers
#
CONFIG_PATA_ACPI=m
CONFIG_ATA_GENERIC=m
# CONFIG_PATA_LEGACY is not set
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
CONFIG_MD_AUTODETECT=y
CONFIG_MD_LINEAR=m
CONFIG_MD_RAID0=m
CONFIG_MD_RAID1=m
CONFIG_MD_RAID10=m
CONFIG_MD_RAID456=m
# CONFIG_MD_MULTIPATH is not set
CONFIG_MD_FAULTY=m
# CONFIG_BCACHE is not set
CONFIG_BLK_DEV_DM_BUILTIN=y
CONFIG_BLK_DEV_DM=m
CONFIG_DM_DEBUG=y
CONFIG_DM_BUFIO=m
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
# CONFIG_DM_THIN_PROVISIONING is not set
# CONFIG_DM_CACHE is not set
CONFIG_DM_MIRROR=m
CONFIG_DM_LOG_USERSPACE=m
CONFIG_DM_RAID=m
CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
CONFIG_DM_MULTIPATH_QL=m
CONFIG_DM_MULTIPATH_ST=m
CONFIG_DM_DELAY=m
CONFIG_DM_UEVENT=y
CONFIG_DM_FLAKEY=m
# CONFIG_DM_VERITY is not set
# CONFIG_DM_SWITCH is not set
CONFIG_TARGET_CORE=m
CONFIG_TCM_IBLOCK=m
CONFIG_TCM_FILEIO=m
CONFIG_TCM_PSCSI=m
CONFIG_LOOPBACK_TARGET=m
# CONFIG_TCM_FC is not set
# CONFIG_ISCSI_TARGET is not set
# CONFIG_SBP_TARGET is not set
CONFIG_FUSION=y
CONFIG_FUSION_SPI=m
CONFIG_FUSION_FC=m
CONFIG_FUSION_SAS=m
CONFIG_FUSION_MAX_SGE=128
CONFIG_FUSION_CTL=m
CONFIG_FUSION_LAN=m
CONFIG_FUSION_LOGGING=y
#
# IEEE 1394 (FireWire) support
#
CONFIG_FIREWIRE=m
CONFIG_FIREWIRE_OHCI=m
CONFIG_FIREWIRE_SBP2=m
CONFIG_FIREWIRE_NET=m
# CONFIG_FIREWIRE_NOSY is not set
# CONFIG_I2O is not set
CONFIG_MACINTOSH_DRIVERS=y
CONFIG_MAC_EMUMOUSEBTN=y
CONFIG_NETDEVICES=y
CONFIG_MII=m
CONFIG_NET_CORE=y
CONFIG_BONDING=m
CONFIG_DUMMY=m
# CONFIG_EQUALIZER is not set
CONFIG_NET_FC=y
CONFIG_IFB=m
# CONFIG_NET_TEAM is not set
CONFIG_MACVLAN=m
CONFIG_MACVTAP=m
# CONFIG_VXLAN is not set
CONFIG_NETCONSOLE=m
CONFIG_NETCONSOLE_DYNAMIC=y
CONFIG_NETPOLL=y
CONFIG_NETPOLL_TRAP=y
CONFIG_NET_POLL_CONTROLLER=y
# CONFIG_RIONET is not set
CONFIG_TUN=m
CONFIG_VETH=m
CONFIG_VIRTIO_NET=m
# CONFIG_NLMON is not set
CONFIG_SUNGEM_PHY=m
# CONFIG_ARCNET is not set
CONFIG_ATM_DRIVERS=y
# CONFIG_ATM_DUMMY is not set
CONFIG_ATM_TCP=m
# CONFIG_ATM_LANAI is not set
# CONFIG_ATM_ENI is not set
# CONFIG_ATM_FIRESTREAM is not set
# CONFIG_ATM_ZATM is not set
# CONFIG_ATM_NICSTAR is not set
# CONFIG_ATM_IDT77252 is not set
# CONFIG_ATM_AMBASSADOR is not set
# CONFIG_ATM_HORIZON is not set
# CONFIG_ATM_IA is not set
# CONFIG_ATM_FORE200E is not set
# CONFIG_ATM_HE is not set
# CONFIG_ATM_SOLOS is not set
#
# CAIF transport drivers
#
CONFIG_VHOST_NET=m
# CONFIG_VHOST_SCSI is not set
CONFIG_VHOST_RING=m
CONFIG_VHOST=m
#
# Distributed Switch Architecture drivers
#
CONFIG_NET_DSA_MV88E6XXX=y
CONFIG_NET_DSA_MV88E6060=y
CONFIG_NET_DSA_MV88E6XXX_NEED_PPU=y
CONFIG_NET_DSA_MV88E6131=y
CONFIG_NET_DSA_MV88E6123_61_65=y
CONFIG_ETHERNET=y
CONFIG_MDIO=m
CONFIG_NET_VENDOR_3COM=y
CONFIG_PCMCIA_3C574=m
CONFIG_PCMCIA_3C589=m
CONFIG_VORTEX=m
CONFIG_TYPHOON=m
CONFIG_NET_VENDOR_ADAPTEC=y
CONFIG_ADAPTEC_STARFIRE=m
CONFIG_NET_VENDOR_ALTEON=y
CONFIG_ACENIC=m
# CONFIG_ACENIC_OMIT_TIGON_I is not set
CONFIG_NET_VENDOR_AMD=y
CONFIG_AMD8111_ETH=m
CONFIG_PCNET32=m
CONFIG_PCMCIA_NMCLAN=m
CONFIG_NET_VENDOR_ARC=y
CONFIG_NET_VENDOR_ATHEROS=y
CONFIG_ATL2=m
CONFIG_ATL1=m
CONFIG_ATL1E=m
CONFIG_ATL1C=m
# CONFIG_ALX is not set
CONFIG_NET_CADENCE=y
# CONFIG_ARM_AT91_ETHER is not set
# CONFIG_MACB is not set
CONFIG_NET_VENDOR_BROADCOM=y
CONFIG_B44=m
CONFIG_B44_PCI_AUTOSELECT=y
CONFIG_B44_PCICORE_AUTOSELECT=y
CONFIG_B44_PCI=y
CONFIG_BNX2=m
CONFIG_CNIC=m
CONFIG_TIGON3=m
CONFIG_BNX2X=m
CONFIG_BNX2X_SRIOV=y
CONFIG_NET_VENDOR_BROCADE=y
CONFIG_BNA=m
# CONFIG_NET_CALXEDA_XGMAC is not set
CONFIG_NET_VENDOR_CHELSIO=y
CONFIG_CHELSIO_T1=m
CONFIG_CHELSIO_T1_1G=y
CONFIG_CHELSIO_T3=m
CONFIG_CHELSIO_T4=m
# CONFIG_CHELSIO_T4VF is not set
CONFIG_NET_VENDOR_CISCO=y
CONFIG_ENIC=m
CONFIG_DNET=m
CONFIG_NET_VENDOR_DEC=y
CONFIG_NET_TULIP=y
CONFIG_DE2104X=m
CONFIG_DE2104X_DSL=0
CONFIG_TULIP=m
# CONFIG_TULIP_MWI is not set
CONFIG_TULIP_MMIO=y
# CONFIG_TULIP_NAPI is not set
CONFIG_DE4X5=m
CONFIG_WINBOND_840=m
CONFIG_DM9102=m
CONFIG_ULI526X=m
CONFIG_PCMCIA_XIRCOM=m
CONFIG_NET_VENDOR_DLINK=y
CONFIG_DL2K=m
# CONFIG_SUNDANCE is not set
CONFIG_NET_VENDOR_EMULEX=y
CONFIG_BE2NET=m
CONFIG_NET_VENDOR_EXAR=y
CONFIG_S2IO=m
CONFIG_VXGE=m
# CONFIG_VXGE_DEBUG_TRACE_ALL is not set
CONFIG_NET_VENDOR_FUJITSU=y
CONFIG_PCMCIA_FMVJ18X=m
CONFIG_NET_VENDOR_HP=y
# CONFIG_HP100 is not set
CONFIG_NET_VENDOR_INTEL=y
CONFIG_E100=m
CONFIG_E1000=m
CONFIG_E1000E=m
CONFIG_IGB=m
CONFIG_IGB_HWMON=y
CONFIG_IGB_DCA=y
CONFIG_IGBVF=m
CONFIG_IXGB=m
CONFIG_IXGBE=m
CONFIG_IXGBE_HWMON=y
CONFIG_IXGBE_DCA=y
CONFIG_IXGBE_DCB=y
CONFIG_IXGBEVF=m
# CONFIG_I40E is not set
# CONFIG_I40EVF is not set
CONFIG_NET_VENDOR_I825XX=y
CONFIG_IP1000=m
CONFIG_JME=m
CONFIG_NET_VENDOR_MARVELL=y
# CONFIG_MVMDIO is not set
CONFIG_SKGE=m
# CONFIG_SKGE_DEBUG is not set
# CONFIG_SKGE_GENESIS is not set
CONFIG_SKY2=m
# CONFIG_SKY2_DEBUG is not set
CONFIG_NET_VENDOR_MELLANOX=y
CONFIG_MLX4_EN=m
CONFIG_MLX4_EN_DCB=y
CONFIG_MLX4_CORE=m
CONFIG_MLX4_DEBUG=y
# CONFIG_MLX5_CORE is not set
CONFIG_NET_VENDOR_MICREL=y
# CONFIG_KS8842 is not set
# CONFIG_KS8851_MLL is not set
# CONFIG_KSZ884X_PCI is not set
CONFIG_NET_VENDOR_MYRI=y
CONFIG_MYRI10GE=m
CONFIG_MYRI10GE_DCA=y
CONFIG_FEALNX=m
CONFIG_NET_VENDOR_NATSEMI=y
CONFIG_NATSEMI=m
CONFIG_NS83820=m
CONFIG_NET_VENDOR_8390=y
CONFIG_PCMCIA_AXNET=m
CONFIG_NE2K_PCI=m
CONFIG_PCMCIA_PCNET=m
CONFIG_NET_VENDOR_NVIDIA=y
CONFIG_FORCEDETH=m
CONFIG_NET_VENDOR_OKI=y
CONFIG_PCH_GBE=m
CONFIG_ETHOC=m
CONFIG_NET_PACKET_ENGINE=y
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
CONFIG_NET_VENDOR_QLOGIC=y
CONFIG_QLA3XXX=m
CONFIG_QLCNIC=m
CONFIG_QLCNIC_SRIOV=y
CONFIG_QLCNIC_DCB=y
CONFIG_QLGE=m
CONFIG_NETXEN_NIC=m
CONFIG_NET_VENDOR_REALTEK=y
# CONFIG_ATP is not set
CONFIG_8139CP=m
CONFIG_8139TOO=m
# CONFIG_8139TOO_PIO is not set
# CONFIG_8139TOO_TUNE_TWISTER is not set
CONFIG_8139TOO_8129=y
# CONFIG_8139_OLD_RX_RESET is not set
CONFIG_R8169=m
# CONFIG_SH_ETH is not set
CONFIG_NET_VENDOR_RDC=y
CONFIG_R6040=m
CONFIG_NET_VENDOR_SEEQ=y
CONFIG_NET_VENDOR_SILAN=y
CONFIG_SC92031=m
CONFIG_NET_VENDOR_SIS=y
CONFIG_SIS900=m
CONFIG_SIS190=m
CONFIG_SFC=m
CONFIG_SFC_MTD=y
CONFIG_SFC_MCDI_MON=y
CONFIG_SFC_SRIOV=y
CONFIG_NET_VENDOR_SMSC=y
CONFIG_PCMCIA_SMC91C92=m
CONFIG_EPIC100=m
# CONFIG_SMSC911X is not set
CONFIG_SMSC9420=m
CONFIG_NET_VENDOR_STMICRO=y
CONFIG_STMMAC_ETH=m
CONFIG_STMMAC_PLATFORM=y
# CONFIG_STMMAC_PCI is not set
# CONFIG_STMMAC_DEBUG_FS is not set
CONFIG_STMMAC_DA=y
CONFIG_NET_VENDOR_SUN=y
CONFIG_HAPPYMEAL=m
CONFIG_SUNGEM=m
CONFIG_CASSINI=m
CONFIG_NIU=m
CONFIG_NET_VENDOR_TEHUTI=y
CONFIG_TEHUTI=m
CONFIG_NET_VENDOR_TI=y
CONFIG_TLAN=m
CONFIG_NET_VENDOR_VIA=y
CONFIG_VIA_RHINE=m
CONFIG_VIA_RHINE_MMIO=y
CONFIG_VIA_VELOCITY=m
CONFIG_NET_VENDOR_WIZNET=y
# CONFIG_WIZNET_W5100 is not set
# CONFIG_WIZNET_W5300 is not set
CONFIG_NET_VENDOR_XIRCOM=y
CONFIG_PCMCIA_XIRC2PS=m
CONFIG_FDDI=y
# CONFIG_DEFXX is not set
# CONFIG_SKFP is not set
# CONFIG_HIPPI is not set
# CONFIG_NET_SB1000 is not set
CONFIG_PHYLIB=y
#
# MII PHY device drivers
#
# CONFIG_AT803X_PHY is not set
# CONFIG_AMD_PHY is not set
CONFIG_MARVELL_PHY=m
CONFIG_DAVICOM_PHY=m
CONFIG_QSEMI_PHY=m
CONFIG_LXT_PHY=m
CONFIG_CICADA_PHY=m
CONFIG_VITESSE_PHY=m
CONFIG_SMSC_PHY=m
CONFIG_BROADCOM_PHY=m
# CONFIG_BCM87XX_PHY is not set
CONFIG_ICPLUS_PHY=m
CONFIG_REALTEK_PHY=m
CONFIG_NATIONAL_PHY=m
CONFIG_STE10XP=m
CONFIG_LSI_ET1011C_PHY=m
CONFIG_MICREL_PHY=m
CONFIG_FIXED_PHY=y
CONFIG_MDIO_BITBANG=m
# CONFIG_MDIO_GPIO is not set
# CONFIG_PLIP is not set
CONFIG_PPP=m
# CONFIG_PPP_BSDCOMP is not set
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_FILTER=y
CONFIG_PPP_MPPE=m
CONFIG_PPP_MULTILINK=y
CONFIG_PPPOATM=m
CONFIG_PPPOE=m
CONFIG_PPTP=m
CONFIG_PPPOL2TP=m
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
CONFIG_SLIP=m
CONFIG_SLHC=m
CONFIG_SLIP_COMPRESSED=y
CONFIG_SLIP_SMART=y
# CONFIG_SLIP_MODE_SLIP6 is not set
#
# USB Network Adapters
#
CONFIG_USB_CATC=m
CONFIG_USB_KAWETH=m
CONFIG_USB_PEGASUS=m
CONFIG_USB_RTL8150=m
# CONFIG_USB_RTL8152 is not set
CONFIG_USB_USBNET=m
CONFIG_USB_NET_AX8817X=m
CONFIG_USB_NET_AX88179_178A=m
CONFIG_USB_NET_CDCETHER=m
CONFIG_USB_NET_CDC_EEM=m
CONFIG_USB_NET_CDC_NCM=m
# CONFIG_USB_NET_HUAWEI_CDC_NCM is not set
# CONFIG_USB_NET_CDC_MBIM is not set
CONFIG_USB_NET_DM9601=m
# CONFIG_USB_NET_SR9700 is not set
# CONFIG_USB_NET_SR9800 is not set
# CONFIG_USB_NET_SMSC75XX is not set
CONFIG_USB_NET_SMSC95XX=m
CONFIG_USB_NET_GL620A=m
CONFIG_USB_NET_NET1080=m
CONFIG_USB_NET_PLUSB=m
CONFIG_USB_NET_MCS7830=m
CONFIG_USB_NET_RNDIS_HOST=m
CONFIG_USB_NET_CDC_SUBSET=m
CONFIG_USB_ALI_M5632=y
CONFIG_USB_AN2720=y
CONFIG_USB_BELKIN=y
CONFIG_USB_ARMLINUX=y
CONFIG_USB_EPSON2888=y
CONFIG_USB_KC2190=y
CONFIG_USB_NET_ZAURUS=m
CONFIG_USB_NET_CX82310_ETH=m
CONFIG_USB_NET_KALMIA=m
# CONFIG_USB_NET_QMI_WWAN is not set
CONFIG_USB_HSO=m
CONFIG_USB_NET_INT51X1=m
CONFIG_USB_CDC_PHONET=m
CONFIG_USB_IPHETH=m
CONFIG_USB_SIERRA_NET=m
# CONFIG_USB_VL600 is not set
CONFIG_WLAN=y
# CONFIG_PCMCIA_RAYCS is not set
CONFIG_LIBERTAS_THINFIRM=m
# CONFIG_LIBERTAS_THINFIRM_DEBUG is not set
CONFIG_LIBERTAS_THINFIRM_USB=m
CONFIG_AIRO=m
CONFIG_ATMEL=m
CONFIG_PCI_ATMEL=m
CONFIG_PCMCIA_ATMEL=m
CONFIG_AT76C50X_USB=m
CONFIG_AIRO_CS=m
CONFIG_PCMCIA_WL3501=m
# CONFIG_PRISM54 is not set
CONFIG_USB_ZD1201=m
CONFIG_USB_NET_RNDIS_WLAN=m
CONFIG_RTL8180=m
CONFIG_RTL8187=m
CONFIG_RTL8187_LEDS=y
CONFIG_ADM8211=m
CONFIG_MAC80211_HWSIM=m
CONFIG_MWL8K=m
# CONFIG_ATH_CARDS is not set
CONFIG_B43=m
CONFIG_B43_SSB=y
CONFIG_B43_PCI_AUTOSELECT=y
CONFIG_B43_PCICORE_AUTOSELECT=y
CONFIG_B43_PCMCIA=y
CONFIG_B43_SDIO=y
CONFIG_B43_PIO=y
# CONFIG_B43_PHY_N is not set
CONFIG_B43_PHY_LP=y
CONFIG_B43_LEDS=y
CONFIG_B43_HWRNG=y
# CONFIG_B43_DEBUG is not set
CONFIG_B43LEGACY=m
CONFIG_B43LEGACY_PCI_AUTOSELECT=y
CONFIG_B43LEGACY_PCICORE_AUTOSELECT=y
CONFIG_B43LEGACY_LEDS=y
CONFIG_B43LEGACY_HWRNG=y
# CONFIG_B43LEGACY_DEBUG is not set
CONFIG_B43LEGACY_DMA=y
CONFIG_B43LEGACY_PIO=y
CONFIG_B43LEGACY_DMA_AND_PIO_MODE=y
# CONFIG_B43LEGACY_DMA_MODE is not set
# CONFIG_B43LEGACY_PIO_MODE is not set
# CONFIG_BRCMSMAC is not set
# CONFIG_BRCMFMAC is not set
CONFIG_HOSTAP=m
CONFIG_HOSTAP_FIRMWARE=y
CONFIG_HOSTAP_FIRMWARE_NVRAM=y
CONFIG_HOSTAP_PLX=m
CONFIG_HOSTAP_PCI=m
CONFIG_HOSTAP_CS=m
CONFIG_IPW2100=m
CONFIG_IPW2100_MONITOR=y
# CONFIG_IPW2100_DEBUG is not set
CONFIG_IPW2200=m
CONFIG_IPW2200_MONITOR=y
CONFIG_IPW2200_RADIOTAP=y
CONFIG_IPW2200_PROMISCUOUS=y
CONFIG_IPW2200_QOS=y
# CONFIG_IPW2200_DEBUG is not set
CONFIG_LIBIPW=m
# CONFIG_LIBIPW_DEBUG is not set
# CONFIG_IWLWIFI is not set
CONFIG_IWLEGACY=m
CONFIG_IWL4965=m
CONFIG_IWL3945=m
#
# iwl3945 / iwl4965 Debugging Options
#
# CONFIG_IWLEGACY_DEBUG is not set
CONFIG_LIBERTAS=m
CONFIG_LIBERTAS_USB=m
CONFIG_LIBERTAS_CS=m
CONFIG_LIBERTAS_SDIO=m
CONFIG_LIBERTAS_DEBUG=y
# CONFIG_LIBERTAS_MESH is not set
CONFIG_HERMES=m
# CONFIG_HERMES_PRISM is not set
CONFIG_HERMES_CACHE_FW_ON_INIT=y
CONFIG_PLX_HERMES=m
CONFIG_TMD_HERMES=m
CONFIG_NORTEL_HERMES=m
CONFIG_PCMCIA_HERMES=m
CONFIG_PCMCIA_SPECTRUM=m
# CONFIG_ORINOCO_USB is not set
CONFIG_P54_COMMON=m
CONFIG_P54_USB=m
CONFIG_P54_PCI=m
CONFIG_P54_LEDS=y
CONFIG_RT2X00=m
CONFIG_RT2400PCI=m
CONFIG_RT2500PCI=m
CONFIG_RT61PCI=m
# CONFIG_RT2800PCI is not set
CONFIG_RT2500USB=m
CONFIG_RT73USB=m
# CONFIG_RT2800USB is not set
CONFIG_RT2X00_LIB_MMIO=m
CONFIG_RT2X00_LIB_PCI=m
CONFIG_RT2X00_LIB_USB=m
CONFIG_RT2X00_LIB=m
CONFIG_RT2X00_LIB_FIRMWARE=y
CONFIG_RT2X00_LIB_CRYPTO=y
CONFIG_RT2X00_LIB_LEDS=y
# CONFIG_RT2X00_DEBUG is not set
CONFIG_RTL_CARDS=m
# CONFIG_RTL8192CE is not set
CONFIG_RTL8192SE=m
# CONFIG_RTL8192DE is not set
# CONFIG_RTL8723AE is not set
# CONFIG_RTL8188EE is not set
CONFIG_RTL8192CU=m
CONFIG_RTLWIFI=m
CONFIG_RTLWIFI_PCI=m
CONFIG_RTLWIFI_USB=m
CONFIG_RTLWIFI_DEBUG=y
CONFIG_RTL8192C_COMMON=m
# CONFIG_WL_TI is not set
CONFIG_ZD1211RW=m
# CONFIG_ZD1211RW_DEBUG is not set
# CONFIG_MWIFIEX is not set
# CONFIG_CW1200 is not set
#
# WiMAX Wireless Broadband devices
#
CONFIG_WIMAX_I2400M=m
CONFIG_WIMAX_I2400M_USB=m
CONFIG_WIMAX_I2400M_DEBUG_LEVEL=8
CONFIG_WAN=y
# CONFIG_LANMEDIA is not set
CONFIG_HDLC=m
CONFIG_HDLC_RAW=m
# CONFIG_HDLC_RAW_ETH is not set
CONFIG_HDLC_CISCO=m
CONFIG_HDLC_FR=m
CONFIG_HDLC_PPP=m
#
# X.25/LAPB support is disabled
#
# CONFIG_PCI200SYN is not set
# CONFIG_WANXL is not set
# CONFIG_PC300TOO is not set
# CONFIG_FARSYNC is not set
# CONFIG_DSCC4 is not set
CONFIG_DLCI=m
CONFIG_DLCI_MAX=8
# CONFIG_SBNI is not set
CONFIG_IEEE802154_DRIVERS=m
CONFIG_IEEE802154_FAKEHARD=m
CONFIG_XEN_NETDEV_FRONTEND=y
CONFIG_XEN_NETDEV_BACKEND=m
CONFIG_VMXNET3=m
CONFIG_ISDN=y
CONFIG_ISDN_I4L=m
CONFIG_ISDN_PPP=y
CONFIG_ISDN_PPP_VJ=y
CONFIG_ISDN_MPP=y
CONFIG_IPPP_FILTER=y
# CONFIG_ISDN_PPP_BSDCOMP is not set
CONFIG_ISDN_AUDIO=y
CONFIG_ISDN_TTY_FAX=y
#
# ISDN feature submodules
#
CONFIG_ISDN_DIVERSION=m
#
# ISDN4Linux hardware drivers
#
#
# Passive cards
#
CONFIG_ISDN_DRV_HISAX=m
#
# D-channel protocol features
#
CONFIG_HISAX_EURO=y
CONFIG_DE_AOC=y
CONFIG_HISAX_NO_SENDCOMPLETE=y
CONFIG_HISAX_NO_LLC=y
CONFIG_HISAX_NO_KEYPAD=y
CONFIG_HISAX_1TR6=y
CONFIG_HISAX_NI1=y
CONFIG_HISAX_MAX_CARDS=8
#
# HiSax supported cards
#
CONFIG_HISAX_16_3=y
CONFIG_HISAX_TELESPCI=y
CONFIG_HISAX_S0BOX=y
CONFIG_HISAX_FRITZPCI=y
CONFIG_HISAX_AVM_A1_PCMCIA=y
CONFIG_HISAX_ELSA=y
CONFIG_HISAX_DIEHLDIVA=y
CONFIG_HISAX_SEDLBAUER=y
CONFIG_HISAX_NETJET=y
CONFIG_HISAX_NETJET_U=y
CONFIG_HISAX_NICCY=y
CONFIG_HISAX_BKM_A4T=y
CONFIG_HISAX_SCT_QUADRO=y
CONFIG_HISAX_GAZEL=y
CONFIG_HISAX_HFC_PCI=y
CONFIG_HISAX_W6692=y
CONFIG_HISAX_HFC_SX=y
CONFIG_HISAX_ENTERNOW_PCI=y
# CONFIG_HISAX_DEBUG is not set
#
# HiSax PCMCIA card service modules
#
CONFIG_HISAX_SEDLBAUER_CS=m
CONFIG_HISAX_ELSA_CS=m
CONFIG_HISAX_AVM_A1_CS=m
CONFIG_HISAX_TELES_CS=m
#
# HiSax sub driver modules
#
CONFIG_HISAX_ST5481=m
# CONFIG_HISAX_HFCUSB is not set
CONFIG_HISAX_HFC4S8S=m
CONFIG_HISAX_FRITZ_PCIPNP=m
#
# Active cards
#
CONFIG_ISDN_CAPI=m
CONFIG_ISDN_DRV_AVMB1_VERBOSE_REASON=y
# CONFIG_CAPI_TRACE is not set
CONFIG_ISDN_CAPI_CAPI20=m
CONFIG_ISDN_CAPI_MIDDLEWARE=y
CONFIG_ISDN_CAPI_CAPIDRV=m
#
# CAPI hardware drivers
#
CONFIG_CAPI_AVM=y
CONFIG_ISDN_DRV_AVMB1_B1PCI=m
CONFIG_ISDN_DRV_AVMB1_B1PCIV4=y
CONFIG_ISDN_DRV_AVMB1_B1PCMCIA=m
CONFIG_ISDN_DRV_AVMB1_AVM_CS=m
CONFIG_ISDN_DRV_AVMB1_T1PCI=m
CONFIG_ISDN_DRV_AVMB1_C4=m
CONFIG_CAPI_EICON=y
# CONFIG_ISDN_DIVAS is not set
CONFIG_ISDN_DRV_GIGASET=m
# CONFIG_GIGASET_CAPI is not set
CONFIG_GIGASET_I4L=y
# CONFIG_GIGASET_DUMMYLL is not set
CONFIG_GIGASET_BASE=m
CONFIG_GIGASET_M105=m
CONFIG_GIGASET_M101=m
# CONFIG_GIGASET_DEBUG is not set
CONFIG_HYSDN=m
CONFIG_HYSDN_CAPI=y
CONFIG_MISDN=m
CONFIG_MISDN_DSP=m
CONFIG_MISDN_L1OIP=m
#
# mISDN hardware drivers
#
CONFIG_MISDN_HFCPCI=m
CONFIG_MISDN_HFCMULTI=m
CONFIG_MISDN_HFCUSB=m
CONFIG_MISDN_AVMFRITZ=m
CONFIG_MISDN_SPEEDFAX=m
CONFIG_MISDN_INFINEON=m
CONFIG_MISDN_W6692=m
CONFIG_MISDN_NETJET=m
CONFIG_MISDN_IPAC=m
CONFIG_MISDN_ISAR=m
CONFIG_ISDN_HDLC=m
#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_FF_MEMLESS=y
CONFIG_INPUT_POLLDEV=m
CONFIG_INPUT_SPARSEKMAP=m
CONFIG_INPUT_MATRIXKMAP=m
#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_EVBUG is not set
#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ADP5588 is not set
# CONFIG_KEYBOARD_ADP5589 is not set
CONFIG_KEYBOARD_ATKBD=y
CONFIG_KEYBOARD_QT1070=m
CONFIG_KEYBOARD_QT2160=m
# CONFIG_KEYBOARD_LKKBD is not set
CONFIG_KEYBOARD_GPIO=m
CONFIG_KEYBOARD_GPIO_POLLED=m
CONFIG_KEYBOARD_TCA6416=m
# CONFIG_KEYBOARD_TCA8418 is not set
CONFIG_KEYBOARD_MATRIX=m
# CONFIG_KEYBOARD_LM8323 is not set
# CONFIG_KEYBOARD_LM8333 is not set
# CONFIG_KEYBOARD_MAX7359 is not set
CONFIG_KEYBOARD_MCS=m
# CONFIG_KEYBOARD_MPR121 is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_CYPRESS=y
CONFIG_MOUSE_PS2_LIFEBOOK=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
CONFIG_MOUSE_PS2_ELANTECH=y
# CONFIG_MOUSE_PS2_SENTELIC is not set
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
CONFIG_MOUSE_SERIAL=m
CONFIG_MOUSE_APPLETOUCH=m
CONFIG_MOUSE_BCM5974=m
# CONFIG_MOUSE_CYAPA is not set
CONFIG_MOUSE_VSXXXAA=m
CONFIG_MOUSE_GPIO=m
CONFIG_MOUSE_SYNAPTICS_I2C=m
# CONFIG_MOUSE_SYNAPTICS_USB is not set
# CONFIG_INPUT_JOYSTICK is not set
CONFIG_INPUT_TABLET=y
CONFIG_TABLET_USB_ACECAD=m
CONFIG_TABLET_USB_AIPTEK=m
CONFIG_TABLET_USB_GTCO=m
CONFIG_TABLET_USB_HANWANG=m
CONFIG_TABLET_USB_KBTAB=m
CONFIG_TABLET_USB_WACOM=m
CONFIG_INPUT_TOUCHSCREEN=y
CONFIG_TOUCHSCREEN_AD7879=m
CONFIG_TOUCHSCREEN_AD7879_I2C=m
CONFIG_TOUCHSCREEN_ATMEL_MXT=m
# CONFIG_TOUCHSCREEN_AUO_PIXCIR is not set
CONFIG_TOUCHSCREEN_BU21013=m
CONFIG_TOUCHSCREEN_CY8CTMG110=m
# CONFIG_TOUCHSCREEN_CYTTSP_CORE is not set
# CONFIG_TOUCHSCREEN_CYTTSP4_CORE is not set
CONFIG_TOUCHSCREEN_DYNAPRO=m
CONFIG_TOUCHSCREEN_HAMPSHIRE=m
CONFIG_TOUCHSCREEN_EETI=m
CONFIG_TOUCHSCREEN_FUJITSU=m
# CONFIG_TOUCHSCREEN_ILI210X is not set
CONFIG_TOUCHSCREEN_GUNZE=m
CONFIG_TOUCHSCREEN_ELO=m
CONFIG_TOUCHSCREEN_WACOM_W8001=m
# CONFIG_TOUCHSCREEN_WACOM_I2C is not set
# CONFIG_TOUCHSCREEN_MAX11801 is not set
# CONFIG_TOUCHSCREEN_MCS5000 is not set
# CONFIG_TOUCHSCREEN_MMS114 is not set
CONFIG_TOUCHSCREEN_MTOUCH=m
CONFIG_TOUCHSCREEN_INEXIO=m
CONFIG_TOUCHSCREEN_MK712=m
CONFIG_TOUCHSCREEN_PENMOUNT=m
# CONFIG_TOUCHSCREEN_EDT_FT5X06 is not set
CONFIG_TOUCHSCREEN_TOUCHRIGHT=m
CONFIG_TOUCHSCREEN_TOUCHWIN=m
# CONFIG_TOUCHSCREEN_PIXCIR is not set
# CONFIG_TOUCHSCREEN_WM97XX is not set
CONFIG_TOUCHSCREEN_USB_COMPOSITE=m
CONFIG_TOUCHSCREEN_USB_EGALAX=y
CONFIG_TOUCHSCREEN_USB_PANJIT=y
CONFIG_TOUCHSCREEN_USB_3M=y
CONFIG_TOUCHSCREEN_USB_ITM=y
CONFIG_TOUCHSCREEN_USB_ETURBO=y
CONFIG_TOUCHSCREEN_USB_GUNZE=y
CONFIG_TOUCHSCREEN_USB_DMC_TSC10=y
CONFIG_TOUCHSCREEN_USB_IRTOUCH=y
CONFIG_TOUCHSCREEN_USB_IDEALTEK=y
CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH=y
CONFIG_TOUCHSCREEN_USB_GOTOP=y
CONFIG_TOUCHSCREEN_USB_JASTEC=y
CONFIG_TOUCHSCREEN_USB_ELO=y
CONFIG_TOUCHSCREEN_USB_E2I=y
CONFIG_TOUCHSCREEN_USB_ZYTRONIC=y
CONFIG_TOUCHSCREEN_USB_ETT_TC45USB=y
CONFIG_TOUCHSCREEN_USB_NEXIO=y
CONFIG_TOUCHSCREEN_USB_EASYTOUCH=y
CONFIG_TOUCHSCREEN_TOUCHIT213=m
# CONFIG_TOUCHSCREEN_TSC_SERIO is not set
CONFIG_TOUCHSCREEN_TSC2007=m
# CONFIG_TOUCHSCREEN_ST1232 is not set
# CONFIG_TOUCHSCREEN_SUR40 is not set
# CONFIG_TOUCHSCREEN_TPS6507X is not set
# CONFIG_TOUCHSCREEN_ZFORCE is not set
CONFIG_INPUT_MISC=y
# CONFIG_INPUT_AD714X is not set
# CONFIG_INPUT_BMA150 is not set
CONFIG_INPUT_PCSPKR=m
# CONFIG_INPUT_MMA8450 is not set
# CONFIG_INPUT_MPU3050 is not set
CONFIG_INPUT_APANEL=m
# CONFIG_INPUT_GP2A is not set
# CONFIG_INPUT_GPIO_TILT_POLLED is not set
CONFIG_INPUT_ATLAS_BTNS=m
CONFIG_INPUT_ATI_REMOTE2=m
CONFIG_INPUT_KEYSPAN_REMOTE=m
# CONFIG_INPUT_KXTJ9 is not set
CONFIG_INPUT_POWERMATE=m
CONFIG_INPUT_YEALINK=m
CONFIG_INPUT_CM109=m
CONFIG_INPUT_UINPUT=m
# CONFIG_INPUT_PCF8574 is not set
# CONFIG_INPUT_GPIO_ROTARY_ENCODER is not set
# CONFIG_INPUT_ADXL34X is not set
# CONFIG_INPUT_IMS_PCU is not set
# CONFIG_INPUT_CMA3000 is not set
CONFIG_INPUT_XEN_KBDDEV_FRONTEND=y
# CONFIG_INPUT_IDEAPAD_SLIDEBAR is not set
#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y
CONFIG_SERIO_I8042=y
CONFIG_SERIO_SERPORT=y
# CONFIG_SERIO_CT82C710 is not set
# CONFIG_SERIO_PARKBD is not set
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
CONFIG_SERIO_RAW=m
# CONFIG_SERIO_ALTERA_PS2 is not set
# CONFIG_SERIO_PS2MULT is not set
# CONFIG_SERIO_ARC_PS2 is not set
# CONFIG_GAMEPORT is not set
#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_VT_CONSOLE_SLEEP=y
CONFIG_HW_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_UNIX98_PTYS=y
CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
# CONFIG_LEGACY_PTYS is not set
CONFIG_SERIAL_NONSTANDARD=y
# CONFIG_ROCKETPORT is not set
CONFIG_CYCLADES=m
# CONFIG_CYZ_INTR is not set
# CONFIG_MOXA_INTELLIO is not set
# CONFIG_MOXA_SMARTIO is not set
CONFIG_SYNCLINK=m
CONFIG_SYNCLINKMP=m
CONFIG_SYNCLINK_GT=m
CONFIG_NOZOMI=m
# CONFIG_ISI is not set
CONFIG_N_HDLC=m
# CONFIG_N_GSM is not set
# CONFIG_TRACE_SINK is not set
# CONFIG_DEVKMEM is not set
#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_DEPRECATED_OPTIONS=y
CONFIG_SERIAL_8250_PNP=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_SERIAL_8250_DMA=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_CS=m
CONFIG_SERIAL_8250_NR_UARTS=32
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
CONFIG_SERIAL_8250_DETECT_IRQ=y
CONFIG_SERIAL_8250_RSA=y
# CONFIG_SERIAL_8250_DW is not set
#
# Non-8250 serial port support
#
# CONFIG_SERIAL_KGDB_NMI is not set
CONFIG_SERIAL_MFD_HSU=m
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_CONSOLE_POLL=y
CONFIG_SERIAL_JSM=m
# CONFIG_SERIAL_SCCNXP is not set
CONFIG_SERIAL_TIMBERDALE=m
CONFIG_SERIAL_ALTERA_JTAGUART=m
CONFIG_SERIAL_ALTERA_UART=m
CONFIG_SERIAL_ALTERA_UART_MAXPORTS=4
CONFIG_SERIAL_ALTERA_UART_BAUDRATE=115200
CONFIG_SERIAL_PCH_UART=m
# CONFIG_SERIAL_ARC is not set
# CONFIG_SERIAL_RP2 is not set
# CONFIG_SERIAL_FSL_LPUART is not set
CONFIG_PRINTER=m
CONFIG_LP_CONSOLE=y
CONFIG_PPDEV=m
CONFIG_HVC_DRIVER=y
CONFIG_HVC_IRQ=y
CONFIG_HVC_XEN=y
CONFIG_HVC_XEN_FRONTEND=y
CONFIG_VIRTIO_CONSOLE=m
CONFIG_IPMI_HANDLER=m
# CONFIG_IPMI_PANIC_EVENT is not set
CONFIG_IPMI_DEVICE_INTERFACE=m
CONFIG_IPMI_SI=m
CONFIG_IPMI_WATCHDOG=m
CONFIG_IPMI_POWEROFF=m
CONFIG_HW_RANDOM=y
CONFIG_HW_RANDOM_TIMERIOMEM=m
CONFIG_HW_RANDOM_INTEL=m
CONFIG_HW_RANDOM_AMD=m
CONFIG_HW_RANDOM_VIA=m
CONFIG_HW_RANDOM_VIRTIO=m
CONFIG_HW_RANDOM_TPM=y
CONFIG_NVRAM=y
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
#
# PCMCIA character devices
#
# CONFIG_SYNCLINK_CS is not set
CONFIG_CARDMAN_4000=m
CONFIG_CARDMAN_4040=m
CONFIG_IPWIRELESS=m
# CONFIG_MWAVE is not set
CONFIG_RAW_DRIVER=y
CONFIG_MAX_RAW_DEVS=8192
CONFIG_HPET=y
# CONFIG_HPET_MMAP is not set
CONFIG_HANGCHECK_TIMER=m
CONFIG_TCG_TPM=y
CONFIG_TCG_TIS=y
# CONFIG_TCG_TIS_I2C_ATMEL is not set
# CONFIG_TCG_TIS_I2C_INFINEON is not set
# CONFIG_TCG_TIS_I2C_NUVOTON is not set
CONFIG_TCG_NSC=m
CONFIG_TCG_ATMEL=m
CONFIG_TCG_INFINEON=m
# CONFIG_TCG_ST33_I2C is not set
# CONFIG_TCG_XEN is not set
CONFIG_TELCLOCK=m
CONFIG_DEVPORT=y
CONFIG_I2C=m
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
CONFIG_I2C_CHARDEV=m
# CONFIG_I2C_MUX is not set
CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_SMBUS=m
CONFIG_I2C_ALGOBIT=m
CONFIG_I2C_ALGOPCA=m
#
# I2C Hardware Bus support
#
#
# PC SMBus host controller drivers
#
# CONFIG_I2C_ALI1535 is not set
# CONFIG_I2C_ALI1563 is not set
# CONFIG_I2C_ALI15X3 is not set
CONFIG_I2C_AMD756=m
CONFIG_I2C_AMD756_S4882=m
CONFIG_I2C_AMD8111=m
CONFIG_I2C_I801=m
CONFIG_I2C_ISCH=m
# CONFIG_I2C_ISMT is not set
CONFIG_I2C_PIIX4=m
CONFIG_I2C_NFORCE2=m
CONFIG_I2C_NFORCE2_S4985=m
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
CONFIG_I2C_SIS96X=m
CONFIG_I2C_VIA=m
CONFIG_I2C_VIAPRO=m
#
# ACPI drivers
#
# CONFIG_I2C_SCMI is not set
#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_CBUS_GPIO is not set
# CONFIG_I2C_DESIGNWARE_PLATFORM is not set
# CONFIG_I2C_DESIGNWARE_PCI is not set
# CONFIG_I2C_EG20T is not set
# CONFIG_I2C_GPIO is not set
# CONFIG_I2C_OCORES is not set
CONFIG_I2C_PCA_PLATFORM=m
# CONFIG_I2C_PXA_PCI is not set
CONFIG_I2C_SIMTEC=m
# CONFIG_I2C_XILINX is not set
#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_DIOLAN_U2C is not set
CONFIG_I2C_PARPORT=m
CONFIG_I2C_PARPORT_LIGHT=m
# CONFIG_I2C_ROBOTFUZZ_OSIF is not set
# CONFIG_I2C_TAOS_EVM is not set
CONFIG_I2C_TINY_USB=m
#
# Other I2C/SMBus bus drivers
#
CONFIG_I2C_STUB=m
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# CONFIG_SPI is not set
# CONFIG_HSI is not set
#
# PPS support
#
CONFIG_PPS=m
# CONFIG_PPS_DEBUG is not set
#
# PPS clients support
#
# CONFIG_PPS_CLIENT_KTIMER is not set
# CONFIG_PPS_CLIENT_LDISC is not set
# CONFIG_PPS_CLIENT_PARPORT is not set
# CONFIG_PPS_CLIENT_GPIO is not set
#
# PPS generators support
#
#
# PTP clock support
#
CONFIG_PTP_1588_CLOCK=m
#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
CONFIG_PTP_1588_CLOCK_PCH=m
CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
CONFIG_GPIOLIB=y
CONFIG_GPIO_DEVRES=y
CONFIG_GPIO_ACPI=y
# CONFIG_DEBUG_GPIO is not set
# CONFIG_GPIO_SYSFS is not set
#
# Memory mapped GPIO drivers:
#
# CONFIG_GPIO_GENERIC_PLATFORM is not set
# CONFIG_GPIO_IT8761E is not set
# CONFIG_GPIO_F7188X is not set
# CONFIG_GPIO_SCH311X is not set
# CONFIG_GPIO_TS5500 is not set
# CONFIG_GPIO_SCH is not set
# CONFIG_GPIO_ICH is not set
# CONFIG_GPIO_VX855 is not set
# CONFIG_GPIO_LYNXPOINT is not set
#
# I2C GPIO expanders:
#
# CONFIG_GPIO_MAX7300 is not set
# CONFIG_GPIO_MAX732X is not set
# CONFIG_GPIO_PCA953X is not set
# CONFIG_GPIO_PCF857X is not set
# CONFIG_GPIO_ADP5588 is not set
#
# PCI GPIO expanders:
#
# CONFIG_GPIO_BT8XX is not set
# CONFIG_GPIO_AMD8111 is not set
# CONFIG_GPIO_INTEL_MID is not set
# CONFIG_GPIO_PCH is not set
# CONFIG_GPIO_ML_IOH is not set
# CONFIG_GPIO_RDC321X is not set
#
# SPI GPIO expanders:
#
#
# AC97 GPIO expanders:
#
#
# LPC GPIO expanders:
#
#
# MODULbus GPIO expanders:
#
#
# USB GPIO expanders:
#
# CONFIG_W1 is not set
CONFIG_POWER_SUPPLY=y
# CONFIG_POWER_SUPPLY_DEBUG is not set
# CONFIG_PDA_POWER is not set
# CONFIG_TEST_POWER is not set
# CONFIG_BATTERY_DS2780 is not set
# CONFIG_BATTERY_DS2781 is not set
# CONFIG_BATTERY_DS2782 is not set
# CONFIG_BATTERY_SBS is not set
CONFIG_BATTERY_BQ27x00=m
CONFIG_BATTERY_BQ27X00_I2C=y
CONFIG_BATTERY_BQ27X00_PLATFORM=y
CONFIG_BATTERY_MAX17040=m
# CONFIG_BATTERY_MAX17042 is not set
# CONFIG_CHARGER_MAX8903 is not set
# CONFIG_CHARGER_LP8727 is not set
# CONFIG_CHARGER_GPIO is not set
# CONFIG_CHARGER_MANAGER is not set
# CONFIG_CHARGER_BQ2415X is not set
# CONFIG_CHARGER_BQ24190 is not set
# CONFIG_CHARGER_BQ24735 is not set
# CONFIG_CHARGER_SMB347 is not set
# CONFIG_POWER_RESET is not set
# CONFIG_POWER_AVS is not set
CONFIG_HWMON=m
CONFIG_HWMON_VID=m
# CONFIG_HWMON_DEBUG_CHIP is not set
#
# Native drivers
#
CONFIG_SENSORS_ABITUGURU=m
CONFIG_SENSORS_ABITUGURU3=m
CONFIG_SENSORS_AD7414=m
CONFIG_SENSORS_AD7418=m
CONFIG_SENSORS_ADM1021=m
CONFIG_SENSORS_ADM1025=m
CONFIG_SENSORS_ADM1026=m
CONFIG_SENSORS_ADM1029=m
CONFIG_SENSORS_ADM1031=m
CONFIG_SENSORS_ADM9240=m
# CONFIG_SENSORS_ADT7410 is not set
CONFIG_SENSORS_ADT7411=m
CONFIG_SENSORS_ADT7462=m
CONFIG_SENSORS_ADT7470=m
CONFIG_SENSORS_ADT7475=m
CONFIG_SENSORS_ASC7621=m
CONFIG_SENSORS_K8TEMP=m
CONFIG_SENSORS_K10TEMP=m
# CONFIG_SENSORS_FAM15H_POWER is not set
CONFIG_SENSORS_ASB100=m
CONFIG_SENSORS_ATXP1=m
CONFIG_SENSORS_DS620=m
CONFIG_SENSORS_DS1621=m
CONFIG_SENSORS_I5K_AMB=m
CONFIG_SENSORS_F71805F=m
CONFIG_SENSORS_F71882FG=m
CONFIG_SENSORS_F75375S=m
CONFIG_SENSORS_FSCHMD=m
CONFIG_SENSORS_G760A=m
# CONFIG_SENSORS_G762 is not set
CONFIG_SENSORS_GL518SM=m
CONFIG_SENSORS_GL520SM=m
CONFIG_SENSORS_GPIO_FAN=m
# CONFIG_SENSORS_HIH6130 is not set
# CONFIG_SENSORS_HTU21 is not set
CONFIG_SENSORS_CORETEMP=m
CONFIG_SENSORS_IBMAEM=m
CONFIG_SENSORS_IBMPEX=m
CONFIG_SENSORS_IT87=m
CONFIG_SENSORS_JC42=m
CONFIG_SENSORS_LINEAGE=m
CONFIG_SENSORS_LM63=m
CONFIG_SENSORS_LM73=m
CONFIG_SENSORS_LM75=m
CONFIG_SENSORS_LM77=m
CONFIG_SENSORS_LM78=m
CONFIG_SENSORS_LM80=m
CONFIG_SENSORS_LM83=m
CONFIG_SENSORS_LM85=m
CONFIG_SENSORS_LM87=m
CONFIG_SENSORS_LM90=m
CONFIG_SENSORS_LM92=m
CONFIG_SENSORS_LM93=m
CONFIG_SENSORS_LTC4151=m
CONFIG_SENSORS_LTC4215=m
CONFIG_SENSORS_LTC4245=m
CONFIG_SENSORS_LTC4261=m
# CONFIG_SENSORS_LM95234 is not set
CONFIG_SENSORS_LM95241=m
# CONFIG_SENSORS_LM95245 is not set
# CONFIG_SENSORS_MAX16065 is not set
CONFIG_SENSORS_MAX1619=m
# CONFIG_SENSORS_MAX1668 is not set
# CONFIG_SENSORS_MAX197 is not set
CONFIG_SENSORS_MAX6639=m
# CONFIG_SENSORS_MAX6642 is not set
CONFIG_SENSORS_MAX6650=m
# CONFIG_SENSORS_MAX6697 is not set
# CONFIG_SENSORS_MCP3021 is not set
# CONFIG_SENSORS_NCT6775 is not set
# CONFIG_SENSORS_NTC_THERMISTOR is not set
CONFIG_SENSORS_PC87360=m
CONFIG_SENSORS_PC87427=m
CONFIG_SENSORS_PCF8591=m
CONFIG_PMBUS=m
CONFIG_SENSORS_PMBUS=m
# CONFIG_SENSORS_ADM1275 is not set
# CONFIG_SENSORS_LM25066 is not set
# CONFIG_SENSORS_LTC2978 is not set
CONFIG_SENSORS_MAX16064=m
CONFIG_SENSORS_MAX34440=m
CONFIG_SENSORS_MAX8688=m
# CONFIG_SENSORS_UCD9000 is not set
# CONFIG_SENSORS_UCD9200 is not set
# CONFIG_SENSORS_ZL6100 is not set
CONFIG_SENSORS_SHT15=m
CONFIG_SENSORS_SHT21=m
CONFIG_SENSORS_SIS5595=m
CONFIG_SENSORS_SMM665=m
CONFIG_SENSORS_DME1737=m
CONFIG_SENSORS_EMC1403=m
CONFIG_SENSORS_EMC2103=m
# CONFIG_SENSORS_EMC6W201 is not set
CONFIG_SENSORS_SMSC47M1=m
CONFIG_SENSORS_SMSC47M192=m
CONFIG_SENSORS_SMSC47B397=m
CONFIG_SENSORS_SCH56XX_COMMON=m
CONFIG_SENSORS_SCH5627=m
# CONFIG_SENSORS_SCH5636 is not set
CONFIG_SENSORS_ADS1015=m
CONFIG_SENSORS_ADS7828=m
CONFIG_SENSORS_AMC6821=m
# CONFIG_SENSORS_INA209 is not set
# CONFIG_SENSORS_INA2XX is not set
CONFIG_SENSORS_THMC50=m
CONFIG_SENSORS_TMP102=m
CONFIG_SENSORS_TMP401=m
# CONFIG_SENSORS_TMP421 is not set
CONFIG_SENSORS_VIA_CPUTEMP=m
CONFIG_SENSORS_VIA686A=m
CONFIG_SENSORS_VT1211=m
CONFIG_SENSORS_VT8231=m
CONFIG_SENSORS_W83781D=m
CONFIG_SENSORS_W83791D=m
CONFIG_SENSORS_W83792D=m
CONFIG_SENSORS_W83793=m
# CONFIG_SENSORS_W83795 is not set
CONFIG_SENSORS_W83L785TS=m
CONFIG_SENSORS_W83L786NG=m
CONFIG_SENSORS_W83627HF=m
CONFIG_SENSORS_W83627EHF=m
CONFIG_SENSORS_APPLESMC=m
#
# ACPI drivers
#
# CONFIG_SENSORS_ACPI_POWER is not set
CONFIG_SENSORS_ATK0110=m
CONFIG_THERMAL=y
CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE=y
# CONFIG_THERMAL_DEFAULT_GOV_FAIR_SHARE is not set
# CONFIG_THERMAL_DEFAULT_GOV_USER_SPACE is not set
# CONFIG_THERMAL_GOV_FAIR_SHARE is not set
CONFIG_THERMAL_GOV_STEP_WISE=y
CONFIG_THERMAL_GOV_USER_SPACE=y
# CONFIG_THERMAL_EMULATION is not set
# CONFIG_INTEL_POWERCLAMP is not set
CONFIG_X86_PKG_TEMP_THERMAL=m
# CONFIG_ACPI_INT3403_THERMAL is not set
#
# Texas Instruments thermal drivers
#
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_CORE=y
# CONFIG_WATCHDOG_NOWAYOUT is not set
#
# Watchdog Device Drivers
#
CONFIG_SOFT_WATCHDOG=m
# CONFIG_DW_WATCHDOG is not set
# CONFIG_ACQUIRE_WDT is not set
# CONFIG_ADVANTECH_WDT is not set
CONFIG_ALIM1535_WDT=m
CONFIG_ALIM7101_WDT=m
# CONFIG_F71808E_WDT is not set
# CONFIG_SP5100_TCO is not set
# CONFIG_SC520_WDT is not set
CONFIG_SBC_FITPC2_WATCHDOG=m
# CONFIG_EUROTECH_WDT is not set
# CONFIG_IB700_WDT is not set
CONFIG_IBMASR=m
# CONFIG_WAFER_WDT is not set
CONFIG_I6300ESB_WDT=m
# CONFIG_IE6XX_WDT is not set
CONFIG_ITCO_WDT=m
CONFIG_ITCO_VENDOR_SUPPORT=y
CONFIG_IT8712F_WDT=m
CONFIG_IT87_WDT=m
CONFIG_HP_WATCHDOG=m
CONFIG_HPWDT_NMI_DECODING=y
# CONFIG_SC1200_WDT is not set
# CONFIG_PC87413_WDT is not set
# CONFIG_NV_TCO is not set
# CONFIG_60XX_WDT is not set
# CONFIG_SBC8360_WDT is not set
# CONFIG_CPU5_WDT is not set
CONFIG_SMSC_SCH311X_WDT=m
# CONFIG_SMSC37B787_WDT is not set
# CONFIG_VIA_WDT is not set
CONFIG_W83627HF_WDT=m
CONFIG_W83697HF_WDT=m
CONFIG_W83697UG_WDT=m
CONFIG_W83877F_WDT=m
CONFIG_W83977F_WDT=m
CONFIG_MACHZ_WDT=m
# CONFIG_SBC_EPX_C3_WATCHDOG is not set
# CONFIG_MEN_A21_WDT is not set
# CONFIG_XEN_WDT is not set
#
# PCI-based Watchdog Cards
#
CONFIG_PCIPCWATCHDOG=m
CONFIG_WDTPCI=m
#
# USB-based Watchdog Cards
#
CONFIG_USBPCWATCHDOG=m
CONFIG_SSB_POSSIBLE=y
#
# Sonics Silicon Backplane
#
CONFIG_SSB=m
CONFIG_SSB_SPROM=y
CONFIG_SSB_BLOCKIO=y
CONFIG_SSB_PCIHOST_POSSIBLE=y
CONFIG_SSB_PCIHOST=y
CONFIG_SSB_B43_PCI_BRIDGE=y
CONFIG_SSB_PCMCIAHOST_POSSIBLE=y
CONFIG_SSB_PCMCIAHOST=y
CONFIG_SSB_SDIOHOST_POSSIBLE=y
CONFIG_SSB_SDIOHOST=y
# CONFIG_SSB_DEBUG is not set
CONFIG_SSB_DRIVER_PCICORE_POSSIBLE=y
CONFIG_SSB_DRIVER_PCICORE=y
# CONFIG_SSB_DRIVER_GPIO is not set
CONFIG_BCMA_POSSIBLE=y
#
# Broadcom specific AMBA
#
# CONFIG_BCMA is not set
#
# Multifunction device drivers
#
CONFIG_MFD_CORE=m
# CONFIG_MFD_CS5535 is not set
# CONFIG_MFD_CROS_EC is not set
# CONFIG_MFD_MC13XXX_I2C is not set
# CONFIG_HTC_PASIC3 is not set
CONFIG_LPC_ICH=m
CONFIG_LPC_SCH=m
# CONFIG_MFD_JANZ_CMODIO is not set
# CONFIG_MFD_KEMPLD is not set
# CONFIG_MFD_VIPERBOARD is not set
# CONFIG_MFD_RETU is not set
# CONFIG_MFD_PCF50633 is not set
# CONFIG_UCB1400_CORE is not set
# CONFIG_MFD_RDC321X is not set
# CONFIG_MFD_RTSX_PCI is not set
# CONFIG_MFD_SI476X_CORE is not set
CONFIG_MFD_SM501=m
# CONFIG_MFD_SM501_GPIO is not set
# CONFIG_ABX500_CORE is not set
# CONFIG_MFD_SYSCON is not set
# CONFIG_MFD_TI_AM335X_TSCADC is not set
# CONFIG_MFD_LP3943 is not set
# CONFIG_TPS6105X is not set
# CONFIG_TPS65010 is not set
# CONFIG_TPS6507X is not set
# CONFIG_MFD_TPS65217 is not set
# CONFIG_MFD_TPS65912 is not set
# CONFIG_MFD_WL1273_CORE is not set
# CONFIG_MFD_LM3533 is not set
# CONFIG_MFD_TIMBERDALE is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_MFD_VX855 is not set
# CONFIG_MFD_ARIZONA_I2C is not set
CONFIG_REGULATOR=y
# CONFIG_REGULATOR_DEBUG is not set
CONFIG_REGULATOR_FIXED_VOLTAGE=m
# CONFIG_REGULATOR_VIRTUAL_CONSUMER is not set
CONFIG_REGULATOR_USERSPACE_CONSUMER=m
# CONFIG_REGULATOR_ACT8865 is not set
# CONFIG_REGULATOR_AD5398 is not set
# CONFIG_REGULATOR_DA9210 is not set
# CONFIG_REGULATOR_FAN53555 is not set
# CONFIG_REGULATOR_GPIO is not set
# CONFIG_REGULATOR_ISL6271A is not set
CONFIG_REGULATOR_LP3971=m
# CONFIG_REGULATOR_LP3972 is not set
# CONFIG_REGULATOR_LP872X is not set
# CONFIG_REGULATOR_LP8755 is not set
CONFIG_REGULATOR_MAX1586=m
# CONFIG_REGULATOR_MAX8649 is not set
# CONFIG_REGULATOR_MAX8660 is not set
# CONFIG_REGULATOR_MAX8952 is not set
# CONFIG_REGULATOR_MAX8973 is not set
# CONFIG_REGULATOR_PFUZE100 is not set
# CONFIG_REGULATOR_TPS51632 is not set
# CONFIG_REGULATOR_TPS62360 is not set
CONFIG_REGULATOR_TPS65023=m
CONFIG_REGULATOR_TPS6507X=m
CONFIG_MEDIA_SUPPORT=m
#
# Multimedia core support
#
# CONFIG_MEDIA_CAMERA_SUPPORT is not set
# CONFIG_MEDIA_ANALOG_TV_SUPPORT is not set
# CONFIG_MEDIA_DIGITAL_TV_SUPPORT is not set
# CONFIG_MEDIA_RADIO_SUPPORT is not set
# CONFIG_MEDIA_RC_SUPPORT is not set
# CONFIG_VIDEO_ADV_DEBUG is not set
# CONFIG_VIDEO_FIXED_MINOR_RANGES is not set
# CONFIG_TTPCI_EEPROM is not set
#
# Media drivers
#
# CONFIG_MEDIA_USB_SUPPORT is not set
# CONFIG_MEDIA_PCI_SUPPORT is not set
#
# Supported MMC/SDIO adapters
#
# CONFIG_CYPRESS_FIRMWARE is not set
#
# Media ancillary drivers (tuners, sensors, i2c, frontends)
#
#
# Customise DVB Frontends
#
CONFIG_DVB_TUNER_DIB0070=m
CONFIG_DVB_TUNER_DIB0090=m
#
# Tools to develop new frontends
#
# CONFIG_DVB_DUMMY_FE is not set
#
# Graphics support
#
CONFIG_AGP=y
CONFIG_AGP_AMD64=y
CONFIG_AGP_INTEL=y
CONFIG_AGP_SIS=y
CONFIG_AGP_VIA=y
CONFIG_INTEL_GTT=y
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=64
# CONFIG_VGA_SWITCHEROO is not set
CONFIG_DRM=m
CONFIG_DRM_KMS_HELPER=m
CONFIG_DRM_KMS_FB_HELPER=y
# CONFIG_DRM_LOAD_EDID_FIRMWARE is not set
CONFIG_DRM_TTM=m
#
# I2C encoder or helper chips
#
CONFIG_DRM_I2C_CH7006=m
CONFIG_DRM_I2C_SIL164=m
# CONFIG_DRM_I2C_NXP_TDA998X is not set
# CONFIG_DRM_TDFX is not set
CONFIG_DRM_R128=m
CONFIG_DRM_RADEON=m
# CONFIG_DRM_RADEON_UMS is not set
CONFIG_DRM_NOUVEAU=m
CONFIG_NOUVEAU_DEBUG=5
CONFIG_NOUVEAU_DEBUG_DEFAULT=3
CONFIG_DRM_NOUVEAU_BACKLIGHT=y
# CONFIG_DRM_I810 is not set
CONFIG_DRM_I915=m
CONFIG_DRM_I915_KMS=y
CONFIG_DRM_I915_FBDEV=y
# CONFIG_DRM_I915_PRELIMINARY_HW_SUPPORT is not set
# CONFIG_DRM_I915_UMS is not set
CONFIG_DRM_MGA=m
# CONFIG_DRM_SIS is not set
CONFIG_DRM_VIA=m
CONFIG_DRM_SAVAGE=m
# CONFIG_DRM_VMWGFX is not set
# CONFIG_DRM_GMA500 is not set
# CONFIG_DRM_UDL is not set
# CONFIG_DRM_AST is not set
# CONFIG_DRM_MGAG200 is not set
# CONFIG_DRM_CIRRUS_QEMU is not set
# CONFIG_DRM_QXL is not set
# CONFIG_DRM_BOCHS is not set
CONFIG_VGASTATE=m
CONFIG_VIDEO_OUTPUT_CONTROL=m
CONFIG_HDMI=y
CONFIG_FB=y
# CONFIG_FIRMWARE_EDID is not set
CONFIG_FB_DDC=m
CONFIG_FB_BOOT_VESA_SUPPORT=y
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
CONFIG_FB_SYS_FILLRECT=y
CONFIG_FB_SYS_COPYAREA=y
CONFIG_FB_SYS_IMAGEBLIT=y
# CONFIG_FB_FOREIGN_ENDIAN is not set
CONFIG_FB_SYS_FOPS=y
CONFIG_FB_DEFERRED_IO=y
# CONFIG_FB_SVGALIB is not set
# CONFIG_FB_MACMODES is not set
CONFIG_FB_BACKLIGHT=y
CONFIG_FB_MODE_HELPERS=y
CONFIG_FB_TILEBLITTING=y
#
# Frame buffer hardware drivers
#
CONFIG_FB_CIRRUS=m
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ARC is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
CONFIG_FB_VGA16=m
# CONFIG_FB_UVESA is not set
CONFIG_FB_VESA=y
CONFIG_FB_EFI=y
# CONFIG_FB_N411 is not set
# CONFIG_FB_HGA is not set
# CONFIG_FB_OPENCORES is not set
# CONFIG_FB_S1D13XXX is not set
CONFIG_FB_NVIDIA=m
CONFIG_FB_NVIDIA_I2C=y
# CONFIG_FB_NVIDIA_DEBUG is not set
CONFIG_FB_NVIDIA_BACKLIGHT=y
CONFIG_FB_RIVA=m
# CONFIG_FB_RIVA_I2C is not set
# CONFIG_FB_RIVA_DEBUG is not set
CONFIG_FB_RIVA_BACKLIGHT=y
# CONFIG_FB_I740 is not set
# CONFIG_FB_LE80578 is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
CONFIG_FB_SAVAGE=m
CONFIG_FB_SAVAGE_I2C=y
CONFIG_FB_SAVAGE_ACCEL=y
# CONFIG_FB_SIS is not set
CONFIG_FB_VIA=m
# CONFIG_FB_VIA_DIRECT_PROCFS is not set
# CONFIG_FB_VIA_X_COMPATIBILITY is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_VT8623 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_CARMINE is not set
# CONFIG_FB_TMIO is not set
CONFIG_FB_SM501=m
# CONFIG_FB_SMSCUFX is not set
# CONFIG_FB_UDL is not set
# CONFIG_FB_GOLDFISH is not set
CONFIG_FB_VIRTUAL=m
CONFIG_XEN_FBDEV_FRONTEND=y
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
# CONFIG_FB_BROADSHEET is not set
# CONFIG_FB_AUO_K190X is not set
# CONFIG_FB_SIMPLE is not set
# CONFIG_EXYNOS_VIDEO is not set
CONFIG_BACKLIGHT_LCD_SUPPORT=y
CONFIG_LCD_CLASS_DEVICE=m
CONFIG_LCD_PLATFORM=m
CONFIG_BACKLIGHT_CLASS_DEVICE=y
# CONFIG_BACKLIGHT_GENERIC is not set
# CONFIG_BACKLIGHT_APPLE is not set
# CONFIG_BACKLIGHT_SAHARA is not set
# CONFIG_BACKLIGHT_ADP8860 is not set
# CONFIG_BACKLIGHT_ADP8870 is not set
# CONFIG_BACKLIGHT_LM3630A is not set
# CONFIG_BACKLIGHT_LM3639 is not set
# CONFIG_BACKLIGHT_LP855X is not set
# CONFIG_BACKLIGHT_GPIO is not set
# CONFIG_BACKLIGHT_LV5207LP is not set
# CONFIG_BACKLIGHT_BD6107 is not set
#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
CONFIG_VGACON_SOFT_SCROLLBACK=y
CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=64
CONFIG_DUMMY_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_MONO is not set
# CONFIG_LOGO_LINUX_VGA16 is not set
CONFIG_LOGO_LINUX_CLUT224=y
CONFIG_SOUND=m
CONFIG_SOUND_OSS_CORE=y
CONFIG_SOUND_OSS_CORE_PRECLAIM=y
CONFIG_SND=m
CONFIG_SND_TIMER=m
CONFIG_SND_PCM=m
CONFIG_SND_HWDEP=m
CONFIG_SND_RAWMIDI=m
CONFIG_SND_JACK=y
CONFIG_SND_SEQUENCER=m
CONFIG_SND_SEQ_DUMMY=m
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
CONFIG_SND_PCM_OSS_PLUGINS=y
CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_HRTIMER=m
CONFIG_SND_SEQ_HRTIMER_DEFAULT=y
CONFIG_SND_DYNAMIC_MINORS=y
CONFIG_SND_MAX_CARDS=32
# CONFIG_SND_SUPPORT_OLD_API is not set
CONFIG_SND_VERBOSE_PROCFS=y
CONFIG_SND_VERBOSE_PRINTK=y
CONFIG_SND_DEBUG=y
# CONFIG_SND_DEBUG_VERBOSE is not set
CONFIG_SND_PCM_XRUN_DEBUG=y
CONFIG_SND_VMASTER=y
CONFIG_SND_KCTL_JACK=y
CONFIG_SND_DMA_SGBUF=y
CONFIG_SND_RAWMIDI_SEQ=m
CONFIG_SND_OPL3_LIB_SEQ=m
# CONFIG_SND_OPL4_LIB_SEQ is not set
# CONFIG_SND_SBAWE_SEQ is not set
CONFIG_SND_EMU10K1_SEQ=m
CONFIG_SND_MPU401_UART=m
CONFIG_SND_OPL3_LIB=m
CONFIG_SND_VX_LIB=m
CONFIG_SND_AC97_CODEC=m
CONFIG_SND_DRIVERS=y
CONFIG_SND_PCSP=m
CONFIG_SND_DUMMY=m
CONFIG_SND_ALOOP=m
CONFIG_SND_VIRMIDI=m
CONFIG_SND_MTPAV=m
# CONFIG_SND_MTS64 is not set
# CONFIG_SND_SERIAL_U16550 is not set
CONFIG_SND_MPU401=m
# CONFIG_SND_PORTMAN2X4 is not set
CONFIG_SND_AC97_POWER_SAVE=y
CONFIG_SND_AC97_POWER_SAVE_DEFAULT=5
CONFIG_SND_SB_COMMON=m
CONFIG_SND_SB16_DSP=m
CONFIG_SND_PCI=y
CONFIG_SND_AD1889=m
# CONFIG_SND_ALS300 is not set
# CONFIG_SND_ALS4000 is not set
CONFIG_SND_ALI5451=m
# CONFIG_SND_ASIHPI is not set
CONFIG_SND_ATIIXP=m
CONFIG_SND_ATIIXP_MODEM=m
CONFIG_SND_AU8810=m
CONFIG_SND_AU8820=m
CONFIG_SND_AU8830=m
# CONFIG_SND_AW2 is not set
# CONFIG_SND_AZT3328 is not set
CONFIG_SND_BT87X=m
# CONFIG_SND_BT87X_OVERCLOCK is not set
CONFIG_SND_CA0106=m
# CONFIG_SND_CMIPCI is not set
CONFIG_SND_OXYGEN_LIB=m
CONFIG_SND_OXYGEN=m
# CONFIG_SND_CS4281 is not set
CONFIG_SND_CS46XX=m
CONFIG_SND_CS46XX_NEW_DSP=y
CONFIG_SND_CS5530=m
CONFIG_SND_CS5535AUDIO=m
CONFIG_SND_CTXFI=m
CONFIG_SND_DARLA20=m
CONFIG_SND_GINA20=m
CONFIG_SND_LAYLA20=m
CONFIG_SND_DARLA24=m
CONFIG_SND_GINA24=m
CONFIG_SND_LAYLA24=m
CONFIG_SND_MONA=m
CONFIG_SND_MIA=m
CONFIG_SND_ECHO3G=m
CONFIG_SND_INDIGO=m
CONFIG_SND_INDIGOIO=m
CONFIG_SND_INDIGODJ=m
CONFIG_SND_INDIGOIOX=m
CONFIG_SND_INDIGODJX=m
CONFIG_SND_EMU10K1=m
CONFIG_SND_EMU10K1X=m
CONFIG_SND_ENS1370=m
CONFIG_SND_ENS1371=m
CONFIG_SND_ES1938=m
CONFIG_SND_ES1968=m
CONFIG_SND_ES1968_INPUT=y
CONFIG_SND_FM801=m
CONFIG_SND_HDA_INTEL=m
CONFIG_SND_HDA_PREALLOC_SIZE=64
CONFIG_SND_HDA_HWDEP=y
CONFIG_SND_HDA_RECONFIG=y
CONFIG_SND_HDA_INPUT_BEEP=y
CONFIG_SND_HDA_INPUT_BEEP_MODE=1
CONFIG_SND_HDA_INPUT_JACK=y
# CONFIG_SND_HDA_PATCH_LOADER is not set
CONFIG_SND_HDA_CODEC_REALTEK=m
CONFIG_SND_HDA_CODEC_ANALOG=m
CONFIG_SND_HDA_CODEC_SIGMATEL=m
CONFIG_SND_HDA_CODEC_VIA=m
CONFIG_SND_HDA_CODEC_HDMI=m
CONFIG_SND_HDA_I915=y
CONFIG_SND_HDA_CODEC_CIRRUS=m
CONFIG_SND_HDA_CODEC_CONEXANT=m
CONFIG_SND_HDA_CODEC_CA0110=m
CONFIG_SND_HDA_CODEC_CA0132=m
# CONFIG_SND_HDA_CODEC_CA0132_DSP is not set
CONFIG_SND_HDA_CODEC_CMEDIA=m
CONFIG_SND_HDA_CODEC_SI3054=m
CONFIG_SND_HDA_GENERIC=m
CONFIG_SND_HDA_POWER_SAVE_DEFAULT=0
CONFIG_SND_HDSP=m
CONFIG_SND_HDSPM=m
CONFIG_SND_ICE1712=m
CONFIG_SND_ICE1724=m
CONFIG_SND_INTEL8X0=m
CONFIG_SND_INTEL8X0M=m
CONFIG_SND_KORG1212=m
# CONFIG_SND_LOLA is not set
CONFIG_SND_LX6464ES=m
CONFIG_SND_MAESTRO3=m
CONFIG_SND_MAESTRO3_INPUT=y
CONFIG_SND_MIXART=m
CONFIG_SND_NM256=m
CONFIG_SND_PCXHR=m
CONFIG_SND_RIPTIDE=m
CONFIG_SND_RME32=m
CONFIG_SND_RME96=m
CONFIG_SND_RME9652=m
CONFIG_SND_SONICVIBES=m
CONFIG_SND_TRIDENT=m
CONFIG_SND_VIA82XX=m
CONFIG_SND_VIA82XX_MODEM=m
CONFIG_SND_VIRTUOSO=m
CONFIG_SND_VX222=m
CONFIG_SND_YMFPCI=m
CONFIG_SND_USB=y
CONFIG_SND_USB_AUDIO=m
CONFIG_SND_USB_UA101=m
CONFIG_SND_USB_USX2Y=m
CONFIG_SND_USB_CAIAQ=m
CONFIG_SND_USB_CAIAQ_INPUT=y
CONFIG_SND_USB_US122L=m
CONFIG_SND_USB_6FIRE=m
# CONFIG_SND_USB_HIFACE is not set
CONFIG_SND_FIREWIRE=y
CONFIG_SND_FIREWIRE_LIB=m
# CONFIG_SND_DICE is not set
CONFIG_SND_FIREWIRE_SPEAKERS=m
# CONFIG_SND_ISIGHT is not set
# CONFIG_SND_SCS1X is not set
CONFIG_SND_PCMCIA=y
CONFIG_SND_VXPOCKET=m
CONFIG_SND_PDAUDIOCF=m
# CONFIG_SND_SOC is not set
# CONFIG_SOUND_PRIME is not set
CONFIG_AC97_BUS=m
#
# HID support
#
CONFIG_HID=y
# CONFIG_HID_BATTERY_STRENGTH is not set
CONFIG_HIDRAW=y
# CONFIG_UHID is not set
CONFIG_HID_GENERIC=y
#
# Special HID drivers
#
CONFIG_HID_A4TECH=y
CONFIG_HID_ACRUX=m
# CONFIG_HID_ACRUX_FF is not set
CONFIG_HID_APPLE=y
# CONFIG_HID_APPLEIR is not set
# CONFIG_HID_AUREAL is not set
CONFIG_HID_BELKIN=y
CONFIG_HID_CHERRY=y
CONFIG_HID_CHICONY=y
CONFIG_HID_PRODIKEYS=m
CONFIG_HID_CYPRESS=y
CONFIG_HID_DRAGONRISE=y
CONFIG_DRAGONRISE_FF=y
CONFIG_HID_EMS_FF=m
CONFIG_HID_ELECOM=m
# CONFIG_HID_ELO is not set
CONFIG_HID_EZKEY=y
# CONFIG_HID_HOLTEK is not set
# CONFIG_HID_HUION is not set
CONFIG_HID_KEYTOUCH=m
CONFIG_HID_KYE=y
CONFIG_HID_UCLOGIC=m
CONFIG_HID_WALTOP=m
CONFIG_HID_GYRATION=y
# CONFIG_HID_ICADE is not set
CONFIG_HID_TWINHAN=y
CONFIG_HID_KENSINGTON=y
CONFIG_HID_LCPOWER=m
# CONFIG_HID_LENOVO_TPKBD is not set
CONFIG_HID_LOGITECH=y
# CONFIG_HID_LOGITECH_DJ is not set
CONFIG_LOGITECH_FF=y
CONFIG_LOGIRUMBLEPAD2_FF=y
CONFIG_LOGIG940_FF=y
CONFIG_LOGIWHEELS_FF=y
CONFIG_HID_MAGICMOUSE=m
CONFIG_HID_MICROSOFT=y
CONFIG_HID_MONTEREY=y
CONFIG_HID_MULTITOUCH=m
CONFIG_HID_NTRIG=y
CONFIG_HID_ORTEK=m
CONFIG_HID_PANTHERLORD=y
CONFIG_PANTHERLORD_FF=y
CONFIG_HID_PETALYNX=y
CONFIG_HID_PICOLCD=m
CONFIG_HID_PICOLCD_FB=y
CONFIG_HID_PICOLCD_BACKLIGHT=y
CONFIG_HID_PICOLCD_LCD=y
CONFIG_HID_PICOLCD_LEDS=y
# CONFIG_HID_PRIMAX is not set
CONFIG_HID_ROCCAT=m
# CONFIG_HID_SAITEK is not set
CONFIG_HID_SAMSUNG=y
CONFIG_HID_SONY=y
# CONFIG_SONY_FF is not set
# CONFIG_HID_SPEEDLINK is not set
# CONFIG_HID_STEELSERIES is not set
CONFIG_HID_SUNPLUS=y
CONFIG_HID_GREENASIA=y
CONFIG_GREENASIA_FF=y
CONFIG_HID_SMARTJOYPLUS=y
CONFIG_SMARTJOYPLUS_FF=y
# CONFIG_HID_TIVO is not set
CONFIG_HID_TOPSEED=y
# CONFIG_HID_THINGM is not set
CONFIG_HID_THRUSTMASTER=y
CONFIG_THRUSTMASTER_FF=y
CONFIG_HID_WACOM=m
# CONFIG_HID_WIIMOTE is not set
# CONFIG_HID_XINMO is not set
CONFIG_HID_ZEROPLUS=y
CONFIG_ZEROPLUS_FF=y
CONFIG_HID_ZYDACRON=m
# CONFIG_HID_SENSOR_HUB is not set
#
# USB HID support
#
CONFIG_USB_HID=y
CONFIG_HID_PID=y
CONFIG_USB_HIDDEV=y
#
# I2C HID support
#
# CONFIG_I2C_HID is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_SUPPORT=y
CONFIG_USB_COMMON=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB=y
# CONFIG_USB_DEBUG is not set
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
#
# Miscellaneous USB options
#
CONFIG_USB_DEFAULT_PERSIST=y
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_OTG is not set
CONFIG_USB_MON=y
CONFIG_USB_WUSB=m
CONFIG_USB_WUSB_CBAF=m
# CONFIG_USB_WUSB_CBAF_DEBUG is not set
#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
CONFIG_USB_XHCI_HCD=m
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_ROOT_HUB_TT=y
CONFIG_USB_EHCI_TT_NEWSCHED=y
CONFIG_USB_EHCI_PCI=y
# CONFIG_USB_EHCI_HCD_PLATFORM is not set
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_ISP1760_HCD is not set
CONFIG_USB_ISP1362_HCD=m
# CONFIG_USB_FUSBH200_HCD is not set
# CONFIG_USB_FOTG210_HCD is not set
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_OHCI_HCD_PCI=y
# CONFIG_USB_OHCI_HCD_PLATFORM is not set
CONFIG_USB_UHCI_HCD=y
CONFIG_USB_U132_HCD=m
CONFIG_USB_SL811_HCD=m
# CONFIG_USB_SL811_HCD_ISO is not set
# CONFIG_USB_SL811_CS is not set
# CONFIG_USB_R8A66597_HCD is not set
CONFIG_USB_WHCI_HCD=m
CONFIG_USB_HWA_HCD=m
# CONFIG_USB_HCD_SSB is not set
# CONFIG_USB_HCD_TEST_MODE is not set
#
# USB Device Class drivers
#
CONFIG_USB_ACM=m
CONFIG_USB_PRINTER=m
CONFIG_USB_WDM=m
CONFIG_USB_TMC=m
#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#
#
# also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=m
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_REALTEK is not set
CONFIG_USB_STORAGE_DATAFAB=m
CONFIG_USB_STORAGE_FREECOM=m
CONFIG_USB_STORAGE_ISD200=m
CONFIG_USB_STORAGE_USBAT=m
CONFIG_USB_STORAGE_SDDR09=m
CONFIG_USB_STORAGE_SDDR55=m
CONFIG_USB_STORAGE_JUMPSHOT=m
CONFIG_USB_STORAGE_ALAUDA=m
CONFIG_USB_STORAGE_ONETOUCH=m
CONFIG_USB_STORAGE_KARMA=m
CONFIG_USB_STORAGE_CYPRESS_ATACB=m
# CONFIG_USB_STORAGE_ENE_UB6250 is not set
#
# USB Imaging devices
#
CONFIG_USB_MDC800=m
CONFIG_USB_MICROTEK=m
# CONFIG_USB_MUSB_HDRC is not set
# CONFIG_USB_DWC3 is not set
# CONFIG_USB_DWC2 is not set
# CONFIG_USB_CHIPIDEA is not set
#
# USB port drivers
#
CONFIG_USB_USS720=m
CONFIG_USB_SERIAL=m
CONFIG_USB_SERIAL_GENERIC=y
# CONFIG_USB_SERIAL_SIMPLE is not set
CONFIG_USB_SERIAL_AIRCABLE=m
CONFIG_USB_SERIAL_ARK3116=m
CONFIG_USB_SERIAL_BELKIN=m
CONFIG_USB_SERIAL_CH341=m
CONFIG_USB_SERIAL_WHITEHEAT=m
CONFIG_USB_SERIAL_DIGI_ACCELEPORT=m
CONFIG_USB_SERIAL_CP210X=m
CONFIG_USB_SERIAL_CYPRESS_M8=m
CONFIG_USB_SERIAL_EMPEG=m
CONFIG_USB_SERIAL_FTDI_SIO=m
CONFIG_USB_SERIAL_VISOR=m
CONFIG_USB_SERIAL_IPAQ=m
CONFIG_USB_SERIAL_IR=m
CONFIG_USB_SERIAL_EDGEPORT=m
CONFIG_USB_SERIAL_EDGEPORT_TI=m
# CONFIG_USB_SERIAL_F81232 is not set
CONFIG_USB_SERIAL_GARMIN=m
CONFIG_USB_SERIAL_IPW=m
CONFIG_USB_SERIAL_IUU=m
CONFIG_USB_SERIAL_KEYSPAN_PDA=m
CONFIG_USB_SERIAL_KEYSPAN=m
CONFIG_USB_SERIAL_KLSI=m
CONFIG_USB_SERIAL_KOBIL_SCT=m
CONFIG_USB_SERIAL_MCT_U232=m
# CONFIG_USB_SERIAL_METRO is not set
CONFIG_USB_SERIAL_MOS7720=m
# CONFIG_USB_SERIAL_MOS7715_PARPORT is not set
CONFIG_USB_SERIAL_MOS7840=m
# CONFIG_USB_SERIAL_MXUPORT is not set
CONFIG_USB_SERIAL_NAVMAN=m
CONFIG_USB_SERIAL_PL2303=m
CONFIG_USB_SERIAL_OTI6858=m
# CONFIG_USB_SERIAL_QCAUX is not set
CONFIG_USB_SERIAL_QUALCOMM=m
CONFIG_USB_SERIAL_SPCP8X5=m
CONFIG_USB_SERIAL_SAFE=m
CONFIG_USB_SERIAL_SAFE_PADDED=y
CONFIG_USB_SERIAL_SIERRAWIRELESS=m
CONFIG_USB_SERIAL_SYMBOL=m
CONFIG_USB_SERIAL_TI=m
CONFIG_USB_SERIAL_CYBERJACK=m
CONFIG_USB_SERIAL_XIRCOM=m
CONFIG_USB_SERIAL_WWAN=m
CONFIG_USB_SERIAL_OPTION=m
CONFIG_USB_SERIAL_OMNINET=m
CONFIG_USB_SERIAL_OPTICON=m
# CONFIG_USB_SERIAL_XSENS_MT is not set
# CONFIG_USB_SERIAL_WISHBONE is not set
# CONFIG_USB_SERIAL_ZTE is not set
# CONFIG_USB_SERIAL_SSU100 is not set
# CONFIG_USB_SERIAL_QT2 is not set
CONFIG_USB_SERIAL_DEBUG=m
#
# USB Miscellaneous drivers
#
CONFIG_USB_EMI62=m
CONFIG_USB_EMI26=m
CONFIG_USB_ADUTUX=m
CONFIG_USB_SEVSEG=m
# CONFIG_USB_RIO500 is not set
CONFIG_USB_LEGOTOWER=m
CONFIG_USB_LCD=m
CONFIG_USB_LED=m
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
CONFIG_USB_IDMOUSE=m
CONFIG_USB_FTDI_ELAN=m
CONFIG_USB_APPLEDISPLAY=m
CONFIG_USB_SISUSBVGA=m
CONFIG_USB_SISUSBVGA_CON=y
CONFIG_USB_LD=m
# CONFIG_USB_TRANCEVIBRATOR is not set
CONFIG_USB_IOWARRIOR=m
# CONFIG_USB_TEST is not set
# CONFIG_USB_EHSET_TEST_FIXTURE is not set
CONFIG_USB_ISIGHTFW=m
# CONFIG_USB_YUREX is not set
CONFIG_USB_EZUSB_FX2=m
# CONFIG_USB_HSIC_USB3503 is not set
CONFIG_USB_ATM=m
CONFIG_USB_SPEEDTOUCH=m
CONFIG_USB_CXACRU=m
CONFIG_USB_UEAGLEATM=m
CONFIG_USB_XUSBATM=m
#
# USB Physical Layer drivers
#
# CONFIG_USB_PHY is not set
# CONFIG_USB_OTG_FSM is not set
# CONFIG_NOP_USB_XCEIV is not set
# CONFIG_SAMSUNG_USB2PHY is not set
# CONFIG_SAMSUNG_USB3PHY is not set
# CONFIG_USB_GPIO_VBUS is not set
# CONFIG_USB_ISP1301 is not set
# CONFIG_USB_RCAR_PHY is not set
# CONFIG_USB_GADGET is not set
CONFIG_UWB=m
CONFIG_UWB_HWA=m
CONFIG_UWB_WHCI=m
CONFIG_UWB_I1480U=m
CONFIG_MMC=m
# CONFIG_MMC_DEBUG is not set
# CONFIG_MMC_UNSAFE_RESUME is not set
# CONFIG_MMC_CLKGATE is not set
#
# MMC/SD/SDIO Card Drivers
#
CONFIG_MMC_BLOCK=m
CONFIG_MMC_BLOCK_MINORS=8
CONFIG_MMC_BLOCK_BOUNCE=y
CONFIG_SDIO_UART=m
# CONFIG_MMC_TEST is not set
#
# MMC/SD/SDIO Host Controller Drivers
#
CONFIG_MMC_SDHCI=m
CONFIG_MMC_SDHCI_PCI=m
# CONFIG_MMC_RICOH_MMC is not set
# CONFIG_MMC_SDHCI_ACPI is not set
CONFIG_MMC_SDHCI_PLTFM=m
CONFIG_MMC_WBSD=m
CONFIG_MMC_TIFM_SD=m
CONFIG_MMC_SDRICOH_CS=m
CONFIG_MMC_CB710=m
CONFIG_MMC_VIA_SDMMC=m
# CONFIG_MMC_VUB300 is not set
CONFIG_MMC_USHC=m
CONFIG_MEMSTICK=m
# CONFIG_MEMSTICK_DEBUG is not set
#
# MemoryStick drivers
#
# CONFIG_MEMSTICK_UNSAFE_RESUME is not set
CONFIG_MSPRO_BLOCK=m
# CONFIG_MS_BLOCK is not set
#
# MemoryStick Host Controller Drivers
#
CONFIG_MEMSTICK_TIFM_MS=m
CONFIG_MEMSTICK_JMICRON_38X=m
# CONFIG_MEMSTICK_R592 is not set
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
#
# LED drivers
#
# CONFIG_LEDS_LM3530 is not set
# CONFIG_LEDS_LM3642 is not set
# CONFIG_LEDS_PCA9532 is not set
# CONFIG_LEDS_GPIO is not set
CONFIG_LEDS_LP3944=m
# CONFIG_LEDS_LP5521 is not set
# CONFIG_LEDS_LP5523 is not set
# CONFIG_LEDS_LP5562 is not set
# CONFIG_LEDS_LP8501 is not set
CONFIG_LEDS_CLEVO_MAIL=m
# CONFIG_LEDS_PCA955X is not set
# CONFIG_LEDS_PCA963X is not set
# CONFIG_LEDS_PCA9685 is not set
# CONFIG_LEDS_REGULATOR is not set
# CONFIG_LEDS_BD2802 is not set
# CONFIG_LEDS_INTEL_SS4200 is not set
# CONFIG_LEDS_LT3593 is not set
# CONFIG_LEDS_DELL_NETBOOKS is not set
# CONFIG_LEDS_TCA6507 is not set
# CONFIG_LEDS_LM355x is not set
# CONFIG_LEDS_OT200 is not set
# CONFIG_LEDS_BLINKM is not set
#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_TIMER=m
# CONFIG_LEDS_TRIGGER_ONESHOT is not set
CONFIG_LEDS_TRIGGER_HEARTBEAT=m
CONFIG_LEDS_TRIGGER_BACKLIGHT=m
# CONFIG_LEDS_TRIGGER_CPU is not set
# CONFIG_LEDS_TRIGGER_GPIO is not set
CONFIG_LEDS_TRIGGER_DEFAULT_ON=m
#
# iptables trigger is under Netfilter config (LED target)
#
# CONFIG_LEDS_TRIGGER_TRANSIENT is not set
# CONFIG_LEDS_TRIGGER_CAMERA is not set
# CONFIG_ACCESSIBILITY is not set
CONFIG_INFINIBAND=m
CONFIG_INFINIBAND_USER_MAD=m
CONFIG_INFINIBAND_USER_ACCESS=m
CONFIG_INFINIBAND_USER_MEM=y
CONFIG_INFINIBAND_ADDR_TRANS=y
CONFIG_INFINIBAND_MTHCA=m
CONFIG_INFINIBAND_MTHCA_DEBUG=y
CONFIG_INFINIBAND_IPATH=m
CONFIG_INFINIBAND_QIB=m
CONFIG_INFINIBAND_QIB_DCA=y
# CONFIG_INFINIBAND_AMSO1100 is not set
CONFIG_INFINIBAND_CXGB3=m
# CONFIG_INFINIBAND_CXGB3_DEBUG is not set
CONFIG_INFINIBAND_CXGB4=m
CONFIG_MLX4_INFINIBAND=m
# CONFIG_MLX5_INFINIBAND is not set
CONFIG_INFINIBAND_NES=m
# CONFIG_INFINIBAND_NES_DEBUG is not set
# CONFIG_INFINIBAND_OCRDMA is not set
CONFIG_INFINIBAND_IPOIB=m
CONFIG_INFINIBAND_IPOIB_CM=y
CONFIG_INFINIBAND_IPOIB_DEBUG=y
# CONFIG_INFINIBAND_IPOIB_DEBUG_DATA is not set
CONFIG_INFINIBAND_SRP=m
# CONFIG_INFINIBAND_SRPT is not set
CONFIG_INFINIBAND_ISER=m
CONFIG_EDAC=y
CONFIG_EDAC_LEGACY_SYSFS=y
# CONFIG_EDAC_DEBUG is not set
CONFIG_EDAC_DECODE_MCE=m
# CONFIG_EDAC_MCE_INJ is not set
CONFIG_EDAC_MM_EDAC=m
CONFIG_EDAC_AMD64=m
# CONFIG_EDAC_AMD64_ERROR_INJECTION is not set
CONFIG_EDAC_E752X=m
CONFIG_EDAC_I82975X=m
CONFIG_EDAC_I3000=m
CONFIG_EDAC_I3200=m
CONFIG_EDAC_X38=m
CONFIG_EDAC_I5400=m
CONFIG_EDAC_I7CORE=m
CONFIG_EDAC_I5000=m
CONFIG_EDAC_I5100=m
CONFIG_EDAC_I7300=m
# CONFIG_EDAC_SBRIDGE is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_SYSTOHC=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set
#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set
#
# I2C RTC drivers
#
CONFIG_RTC_DRV_DS1307=m
CONFIG_RTC_DRV_DS1374=m
CONFIG_RTC_DRV_DS1672=m
# CONFIG_RTC_DRV_DS3232 is not set
CONFIG_RTC_DRV_MAX6900=m
CONFIG_RTC_DRV_RS5C372=m
CONFIG_RTC_DRV_ISL1208=m
# CONFIG_RTC_DRV_ISL12022 is not set
# CONFIG_RTC_DRV_ISL12057 is not set
CONFIG_RTC_DRV_X1205=m
# CONFIG_RTC_DRV_PCF2127 is not set
# CONFIG_RTC_DRV_PCF8523 is not set
CONFIG_RTC_DRV_PCF8563=m
CONFIG_RTC_DRV_PCF8583=m
CONFIG_RTC_DRV_M41T80=m
CONFIG_RTC_DRV_M41T80_WDT=y
# CONFIG_RTC_DRV_BQ32K is not set
# CONFIG_RTC_DRV_S35390A is not set
CONFIG_RTC_DRV_FM3130=m
CONFIG_RTC_DRV_RX8581=m
CONFIG_RTC_DRV_RX8025=m
# CONFIG_RTC_DRV_EM3027 is not set
# CONFIG_RTC_DRV_RV3029C2 is not set
#
# SPI RTC drivers
#
#
# Platform RTC drivers
#
CONFIG_RTC_DRV_CMOS=y
CONFIG_RTC_DRV_DS1286=m
CONFIG_RTC_DRV_DS1511=m
CONFIG_RTC_DRV_DS1553=m
CONFIG_RTC_DRV_DS1742=m
CONFIG_RTC_DRV_STK17TA8=m
# CONFIG_RTC_DRV_M48T86 is not set
CONFIG_RTC_DRV_M48T35=m
CONFIG_RTC_DRV_M48T59=m
# CONFIG_RTC_DRV_MSM6242 is not set
CONFIG_RTC_DRV_BQ4802=m
# CONFIG_RTC_DRV_RP5C01 is not set
CONFIG_RTC_DRV_V3020=m
# CONFIG_RTC_DRV_DS2404 is not set
#
# on-CPU RTC drivers
#
# CONFIG_RTC_DRV_MOXART is not set
#
# HID Sensor RTC drivers
#
# CONFIG_RTC_DRV_HID_SENSOR_TIME is not set
CONFIG_DMADEVICES=y
# CONFIG_DMADEVICES_DEBUG is not set
#
# DMA Devices
#
# CONFIG_INTEL_MID_DMAC is not set
CONFIG_INTEL_IOATDMA=m
# CONFIG_DW_DMAC_CORE is not set
# CONFIG_DW_DMAC is not set
# CONFIG_DW_DMAC_PCI is not set
# CONFIG_TIMB_DMA is not set
# CONFIG_PCH_DMA is not set
CONFIG_DMA_ENGINE=y
CONFIG_DMA_ACPI=y
#
# DMA Clients
#
CONFIG_ASYNC_TX_DMA=y
# CONFIG_DMATEST is not set
CONFIG_DMA_ENGINE_RAID=y
CONFIG_DCA=m
CONFIG_AUXDISPLAY=y
CONFIG_KS0108=m
CONFIG_KS0108_PORT=0x378
CONFIG_KS0108_DELAY=2
CONFIG_CFAG12864B=m
CONFIG_CFAG12864B_RATE=20
CONFIG_UIO=m
CONFIG_UIO_CIF=m
CONFIG_UIO_PDRV_GENIRQ=m
# CONFIG_UIO_DMEM_GENIRQ is not set
CONFIG_UIO_AEC=m
CONFIG_UIO_SERCOS3=m
CONFIG_UIO_PCI_GENERIC=m
# CONFIG_UIO_NETX is not set
# CONFIG_UIO_MF624 is not set
# CONFIG_VFIO is not set
# CONFIG_VIRT_DRIVERS is not set
CONFIG_VIRTIO=m
#
# Virtio drivers
#
CONFIG_VIRTIO_PCI=m
CONFIG_VIRTIO_BALLOON=m
# CONFIG_VIRTIO_MMIO is not set
#
# Microsoft Hyper-V guest support
#
# CONFIG_HYPERV is not set
#
# Xen driver support
#
CONFIG_XEN_BALLOON=y
# CONFIG_XEN_SELFBALLOONING is not set
# CONFIG_XEN_BALLOON_MEMORY_HOTPLUG is not set
CONFIG_XEN_SCRUB_PAGES=y
CONFIG_XEN_DEV_EVTCHN=y
CONFIG_XEN_BACKEND=y
CONFIG_XENFS=y
CONFIG_XEN_COMPAT_XENFS=y
CONFIG_XEN_SYS_HYPERVISOR=y
CONFIG_XEN_XENBUS_FRONTEND=y
CONFIG_XEN_GNTDEV=y
CONFIG_XEN_GRANT_DEV_ALLOC=m
CONFIG_SWIOTLB_XEN=y
CONFIG_XEN_TMEM=m
CONFIG_XEN_PCIDEV_BACKEND=m
CONFIG_XEN_PRIVCMD=y
CONFIG_XEN_ACPI_PROCESSOR=m
# CONFIG_XEN_MCE_LOG is not set
CONFIG_XEN_HAVE_PVMMU=y
CONFIG_STAGING=y
# CONFIG_ET131X is not set
# CONFIG_SLICOSS is not set
# CONFIG_USBIP_CORE is not set
# CONFIG_W35UND is not set
# CONFIG_PRISM2_USB is not set
# CONFIG_ECHO is not set
# CONFIG_COMEDI is not set
# CONFIG_PANEL is not set
# CONFIG_R8187SE is not set
# CONFIG_RTL8192U is not set
# CONFIG_RTLLIB is not set
# CONFIG_R8712U is not set
# CONFIG_R8188EU is not set
# CONFIG_R8821AE is not set
# CONFIG_RTS5139 is not set
# CONFIG_RTS5208 is not set
# CONFIG_TRANZPORT is not set
# CONFIG_IDE_PHISON is not set
# CONFIG_LINE6_USB is not set
# CONFIG_USB_SERIAL_QUATECH2 is not set
# CONFIG_VT6655 is not set
# CONFIG_VT6656 is not set
# CONFIG_DX_SEP is not set
# CONFIG_WLAGS49_H2 is not set
# CONFIG_WLAGS49_H25 is not set
# CONFIG_FB_SM7XX is not set
# CONFIG_CRYSTALHD is not set
# CONFIG_CXT1E1 is not set
# CONFIG_FB_XGI is not set
# CONFIG_ACPI_QUICKSTART is not set
# CONFIG_SBE_2T3E3 is not set
# CONFIG_USB_ENESTORAGE is not set
# CONFIG_BCM_WIMAX is not set
# CONFIG_FT1000 is not set
#
# Speakup console speech
#
# CONFIG_SPEAKUP is not set
# CONFIG_TOUCHSCREEN_CLEARPAD_TM1217 is not set
# CONFIG_TOUCHSCREEN_SYNAPTICS_I2C_RMI4 is not set
# CONFIG_STAGING_MEDIA is not set
#
# Android
#
# CONFIG_ANDROID is not set
# CONFIG_USB_WPAN_HCD is not set
# CONFIG_WIMAX_GDM72XX is not set
# CONFIG_LTE_GDM724X is not set
CONFIG_NET_VENDOR_SILICOM=y
# CONFIG_SBYPASS is not set
# CONFIG_BPCTL is not set
# CONFIG_CED1401 is not set
# CONFIG_DGRP is not set
# CONFIG_FIREWIRE_SERIAL is not set
# CONFIG_LUSTRE_FS is not set
# CONFIG_XILLYBUS is not set
# CONFIG_DGNC is not set
# CONFIG_DGAP is not set
CONFIG_X86_PLATFORM_DEVICES=y
CONFIG_ACER_WMI=m
CONFIG_ACERHDF=m
CONFIG_ASUS_LAPTOP=m
CONFIG_DELL_LAPTOP=m
CONFIG_DELL_WMI=m
# CONFIG_DELL_WMI_AIO is not set
CONFIG_FUJITSU_LAPTOP=m
# CONFIG_FUJITSU_LAPTOP_DEBUG is not set
# CONFIG_FUJITSU_TABLET is not set
# CONFIG_AMILO_RFKILL is not set
# CONFIG_HP_ACCEL is not set
# CONFIG_HP_WIRELESS is not set
CONFIG_HP_WMI=m
CONFIG_MSI_LAPTOP=m
CONFIG_PANASONIC_LAPTOP=m
CONFIG_COMPAL_LAPTOP=m
CONFIG_SONY_LAPTOP=m
CONFIG_SONYPI_COMPAT=y
# CONFIG_IDEAPAD_LAPTOP is not set
CONFIG_THINKPAD_ACPI=m
CONFIG_THINKPAD_ACPI_ALSA_SUPPORT=y
# CONFIG_THINKPAD_ACPI_DEBUGFACILITIES is not set
# CONFIG_THINKPAD_ACPI_DEBUG is not set
# CONFIG_THINKPAD_ACPI_UNSAFE_LEDS is not set
CONFIG_THINKPAD_ACPI_VIDEO=y
CONFIG_THINKPAD_ACPI_HOTKEY_POLL=y
CONFIG_SENSORS_HDAPS=m
# CONFIG_INTEL_MENLOW is not set
# CONFIG_EEEPC_LAPTOP is not set
# CONFIG_ASUS_WMI is not set
CONFIG_ACPI_WMI=m
CONFIG_MSI_WMI=m
# CONFIG_TOPSTAR_LAPTOP is not set
CONFIG_ACPI_TOSHIBA=m
CONFIG_TOSHIBA_BT_RFKILL=m
CONFIG_ACPI_CMPC=m
CONFIG_INTEL_IPS=m
CONFIG_IBM_RTL=m
CONFIG_XO15_EBOOK=m
CONFIG_SAMSUNG_LAPTOP=m
CONFIG_MXM_WMI=m
# CONFIG_INTEL_OAKTRAIL is not set
# CONFIG_SAMSUNG_Q10 is not set
# CONFIG_APPLE_GMUX is not set
# CONFIG_INTEL_RST is not set
# CONFIG_INTEL_SMARTCONNECT is not set
# CONFIG_PVPANIC is not set
# CONFIG_CHROME_PLATFORMS is not set
#
# Hardware Spinlock drivers
#
CONFIG_CLKEVT_I8253=y
CONFIG_I8253_LOCK=y
CONFIG_CLKBLD_I8253=y
# CONFIG_MAILBOX is not set
CONFIG_IOMMU_API=y
CONFIG_IOMMU_SUPPORT=y
CONFIG_AMD_IOMMU=y
CONFIG_AMD_IOMMU_STATS=y
# CONFIG_AMD_IOMMU_V2 is not set
# CONFIG_INTEL_IOMMU is not set
# CONFIG_IRQ_REMAP is not set
#
# Remoteproc drivers
#
# CONFIG_STE_MODEM_RPROC is not set
#
# Rpmsg drivers
#
# CONFIG_PM_DEVFREQ is not set
# CONFIG_EXTCON is not set
# CONFIG_MEMORY is not set
# CONFIG_IIO is not set
# CONFIG_NTB is not set
# CONFIG_VME_BUS is not set
# CONFIG_PWM is not set
# CONFIG_IPACK_BUS is not set
CONFIG_RESET_CONTROLLER=y
# CONFIG_FMC is not set
#
# PHY Subsystem
#
CONFIG_GENERIC_PHY=y
# CONFIG_PHY_EXYNOS_MIPI_VIDEO is not set
# CONFIG_BCM_KONA_USB2_PHY is not set
# CONFIG_POWERCAP is not set
#
# Firmware Drivers
#
CONFIG_EDD=m
# CONFIG_EDD_OFF is not set
CONFIG_FIRMWARE_MEMMAP=y
CONFIG_DELL_RBU=m
CONFIG_DCDBAS=m
CONFIG_DMIID=y
CONFIG_DMI_SYSFS=m
CONFIG_DMI_SCAN_MACHINE_NON_EFI_FALLBACK=y
CONFIG_ISCSI_IBFT_FIND=y
CONFIG_ISCSI_IBFT=m
# CONFIG_GOOGLE_FIRMWARE is not set
#
# EFI (Extensible Firmware Interface) Support
#
CONFIG_EFI_VARS=y
CONFIG_EFI_VARS_PSTORE=y
# CONFIG_EFI_VARS_PSTORE_DEFAULT_DISABLE is not set
CONFIG_EFI_RUNTIME_MAP=y
CONFIG_UEFI_CPER=y
#
# File systems
#
CONFIG_DCACHE_WORD_ACCESS=y
CONFIG_EXT2_FS=m
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y
CONFIG_EXT2_FS_XIP=y
CONFIG_EXT3_FS=m
CONFIG_EXT3_DEFAULTS_TO_ORDERED=y
CONFIG_EXT3_FS_XATTR=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
CONFIG_EXT4_FS=m
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
# CONFIG_EXT4_DEBUG is not set
CONFIG_FS_XIP=y
CONFIG_JBD=m
# CONFIG_JBD_DEBUG is not set
CONFIG_JBD2=m
CONFIG_JBD2_DEBUG=y
CONFIG_FS_MBCACHE=m
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
CONFIG_XFS_FS=m
CONFIG_XFS_QUOTA=y
CONFIG_XFS_POSIX_ACL=y
# CONFIG_XFS_RT is not set
# CONFIG_XFS_WARN is not set
# CONFIG_XFS_DEBUG is not set
CONFIG_GFS2_FS=m
CONFIG_GFS2_FS_LOCKING_DLM=y
CONFIG_OCFS2_FS=m
CONFIG_OCFS2_FS_O2CB=m
CONFIG_OCFS2_FS_USERSPACE_CLUSTER=m
CONFIG_OCFS2_FS_STATS=y
CONFIG_OCFS2_DEBUG_MASKLOG=y
# CONFIG_OCFS2_DEBUG_FS is not set
CONFIG_BTRFS_FS=m
CONFIG_BTRFS_FS_POSIX_ACL=y
# CONFIG_BTRFS_FS_CHECK_INTEGRITY is not set
# CONFIG_BTRFS_FS_RUN_SANITY_TESTS is not set
# CONFIG_BTRFS_DEBUG is not set
# CONFIG_BTRFS_ASSERT is not set
# CONFIG_NILFS2_FS is not set
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=y
CONFIG_FILE_LOCKING=y
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_FANOTIFY=y
CONFIG_FANOTIFY_ACCESS_PERMISSIONS=y
CONFIG_QUOTA=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
CONFIG_PRINT_QUOTA_WARNING=y
# CONFIG_QUOTA_DEBUG is not set
CONFIG_QUOTA_TREE=y
# CONFIG_QFMT_V1 is not set
CONFIG_QFMT_V2=y
CONFIG_QUOTACTL=y
CONFIG_QUOTACTL_COMPAT=y
CONFIG_AUTOFS4_FS=y
CONFIG_FUSE_FS=m
CONFIG_CUSE=m
#
# Caches
#
CONFIG_FSCACHE=m
CONFIG_FSCACHE_STATS=y
# CONFIG_FSCACHE_HISTOGRAM is not set
# CONFIG_FSCACHE_DEBUG is not set
# CONFIG_FSCACHE_OBJECT_LIST is not set
CONFIG_CACHEFILES=m
# CONFIG_CACHEFILES_DEBUG is not set
# CONFIG_CACHEFILES_HISTOGRAM is not set
#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
CONFIG_UDF_FS=m
CONFIG_UDF_NLS=y
#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="ascii"
# CONFIG_NTFS_FS is not set
#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_VMCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_TMPFS_XATTR=y
CONFIG_HUGETLBFS=y
CONFIG_HUGETLB_PAGE=y
CONFIG_CONFIGFS_FS=m
CONFIG_MISC_FILESYSTEMS=y
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
CONFIG_ECRYPT_FS=m
# CONFIG_ECRYPT_FS_MESSAGING is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
CONFIG_JFFS2_FS=m
CONFIG_JFFS2_FS_DEBUG=0
CONFIG_JFFS2_FS_WRITEBUFFER=y
# CONFIG_JFFS2_FS_WBUF_VERIFY is not set
CONFIG_JFFS2_SUMMARY=y
CONFIG_JFFS2_FS_XATTR=y
CONFIG_JFFS2_FS_POSIX_ACL=y
CONFIG_JFFS2_FS_SECURITY=y
# CONFIG_JFFS2_COMPRESSION_OPTIONS is not set
CONFIG_JFFS2_ZLIB=y
# CONFIG_JFFS2_LZO is not set
CONFIG_JFFS2_RTIME=y
# CONFIG_JFFS2_RUBIN is not set
CONFIG_UBIFS_FS=m
# CONFIG_UBIFS_FS_ADVANCED_COMPR is not set
CONFIG_UBIFS_FS_LZO=y
CONFIG_UBIFS_FS_ZLIB=y
# CONFIG_LOGFS is not set
CONFIG_CRAMFS=m
CONFIG_SQUASHFS=m
CONFIG_SQUASHFS_FILE_CACHE=y
# CONFIG_SQUASHFS_FILE_DIRECT is not set
CONFIG_SQUASHFS_DECOMP_SINGLE=y
# CONFIG_SQUASHFS_DECOMP_MULTI is not set
# CONFIG_SQUASHFS_DECOMP_MULTI_PERCPU is not set
# CONFIG_SQUASHFS_XATTR is not set
CONFIG_SQUASHFS_ZLIB=y
# CONFIG_SQUASHFS_LZO is not set
# CONFIG_SQUASHFS_XZ is not set
# CONFIG_SQUASHFS_4K_DEVBLK_SIZE is not set
# CONFIG_SQUASHFS_EMBEDDED is not set
CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE=3
# CONFIG_VXFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX6FS_FS is not set
# CONFIG_ROMFS_FS is not set
CONFIG_PSTORE=y
# CONFIG_PSTORE_CONSOLE is not set
# CONFIG_PSTORE_FTRACE is not set
# CONFIG_PSTORE_RAM is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
# CONFIG_EXOFS_FS is not set
# CONFIG_F2FS_FS is not set
# CONFIG_EFIVAR_FS is not set
CONFIG_ORE=m
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=m
CONFIG_NFS_V2=m
CONFIG_NFS_V3=m
CONFIG_NFS_V3_ACL=y
CONFIG_NFS_V4=m
# CONFIG_NFS_SWAP is not set
CONFIG_NFS_V4_1=y
# CONFIG_NFS_V4_2 is not set
CONFIG_PNFS_FILE_LAYOUT=m
CONFIG_PNFS_BLOCK=m
CONFIG_PNFS_OBJLAYOUT=m
CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN="kernel.org"
# CONFIG_NFS_V4_1_MIGRATION is not set
CONFIG_NFS_FSCACHE=y
CONFIG_NFS_USE_LEGACY_DNS=y
CONFIG_NFSD=m
CONFIG_NFSD_V2_ACL=y
CONFIG_NFSD_V3=y
CONFIG_NFSD_V3_ACL=y
CONFIG_NFSD_V4=y
# CONFIG_NFSD_V4_SECURITY_LABEL is not set
# CONFIG_NFSD_FAULT_INJECTION is not set
CONFIG_LOCKD=m
CONFIG_LOCKD_V4=y
CONFIG_NFS_ACL_SUPPORT=m
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=m
CONFIG_SUNRPC_GSS=m
CONFIG_SUNRPC_BACKCHANNEL=y
CONFIG_SUNRPC_XPRT_RDMA=m
CONFIG_RPCSEC_GSS_KRB5=m
# CONFIG_SUNRPC_DEBUG is not set
# CONFIG_CEPH_FS is not set
CONFIG_CIFS=m
CONFIG_CIFS_STATS=y
# CONFIG_CIFS_STATS2 is not set
CONFIG_CIFS_WEAK_PW_HASH=y
CONFIG_CIFS_UPCALL=y
CONFIG_CIFS_XATTR=y
CONFIG_CIFS_POSIX=y
CONFIG_CIFS_ACL=y
CONFIG_CIFS_DEBUG=y
# CONFIG_CIFS_DEBUG2 is not set
CONFIG_CIFS_DFS_UPCALL=y
# CONFIG_CIFS_SMB2 is not set
# CONFIG_CIFS_FSCACHE is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
# CONFIG_9P_FS is not set
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="utf8"
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_737=m
CONFIG_NLS_CODEPAGE_775=m
CONFIG_NLS_CODEPAGE_850=m
CONFIG_NLS_CODEPAGE_852=m
CONFIG_NLS_CODEPAGE_855=m
CONFIG_NLS_CODEPAGE_857=m
CONFIG_NLS_CODEPAGE_860=m
CONFIG_NLS_CODEPAGE_861=m
CONFIG_NLS_CODEPAGE_862=m
CONFIG_NLS_CODEPAGE_863=m
CONFIG_NLS_CODEPAGE_864=m
CONFIG_NLS_CODEPAGE_865=m
CONFIG_NLS_CODEPAGE_866=m
CONFIG_NLS_CODEPAGE_869=m
CONFIG_NLS_CODEPAGE_936=m
CONFIG_NLS_CODEPAGE_950=m
CONFIG_NLS_CODEPAGE_932=m
CONFIG_NLS_CODEPAGE_949=m
CONFIG_NLS_CODEPAGE_874=m
CONFIG_NLS_ISO8859_8=m
CONFIG_NLS_CODEPAGE_1250=m
CONFIG_NLS_CODEPAGE_1251=m
CONFIG_NLS_ASCII=y
CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_ISO8859_2=m
CONFIG_NLS_ISO8859_3=m
CONFIG_NLS_ISO8859_4=m
CONFIG_NLS_ISO8859_5=m
CONFIG_NLS_ISO8859_6=m
CONFIG_NLS_ISO8859_7=m
CONFIG_NLS_ISO8859_9=m
CONFIG_NLS_ISO8859_13=m
CONFIG_NLS_ISO8859_14=m
CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
# CONFIG_NLS_MAC_ROMAN is not set
# CONFIG_NLS_MAC_CELTIC is not set
# CONFIG_NLS_MAC_CENTEURO is not set
# CONFIG_NLS_MAC_CROATIAN is not set
# CONFIG_NLS_MAC_CYRILLIC is not set
# CONFIG_NLS_MAC_GAELIC is not set
# CONFIG_NLS_MAC_GREEK is not set
# CONFIG_NLS_MAC_ICELAND is not set
# CONFIG_NLS_MAC_INUIT is not set
# CONFIG_NLS_MAC_ROMANIAN is not set
# CONFIG_NLS_MAC_TURKISH is not set
CONFIG_NLS_UTF8=m
CONFIG_DLM=m
CONFIG_DLM_DEBUG=y
#
# Kernel hacking
#
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
#
# printk and dmesg options
#
# CONFIG_PRINTK_TIME is not set
CONFIG_DEFAULT_MESSAGE_LOGLEVEL=4
CONFIG_BOOT_PRINTK_DELAY=y
CONFIG_DYNAMIC_DEBUG=y
#
# Compile-time checks and compiler options
#
CONFIG_DEBUG_INFO=y
# CONFIG_DEBUG_INFO_REDUCED is not set
# CONFIG_ENABLE_WARN_DEPRECATED is not set
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=2048
CONFIG_STRIP_ASM_SYMS=y
# CONFIG_READABLE_ASM is not set
# CONFIG_UNUSED_SYMBOLS is not set
CONFIG_DEBUG_FS=y
CONFIG_HEADERS_CHECK=y
CONFIG_DEBUG_SECTION_MISMATCH=y
CONFIG_ARCH_WANT_FRAME_POINTERS=y
CONFIG_FRAME_POINTER=y
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0x1
CONFIG_DEBUG_KERNEL=y
#
# Memory Debugging
#
# CONFIG_DEBUG_PAGEALLOC is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_DEBUG_SLAB is not set
CONFIG_HAVE_DEBUG_KMEMLEAK=y
# CONFIG_DEBUG_KMEMLEAK is not set
# CONFIG_DEBUG_STACK_USAGE is not set
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_VIRTUAL is not set
CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_DEBUG_PER_CPU_MAPS is not set
CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
# CONFIG_DEBUG_STACKOVERFLOW is not set
CONFIG_HAVE_ARCH_KMEMCHECK=y
CONFIG_DEBUG_SHIRQ=y
#
# Debug Lockups and Hangs
#
CONFIG_LOCKUP_DETECTOR=y
CONFIG_HARDLOCKUP_DETECTOR=y
# CONFIG_BOOTPARAM_HARDLOCKUP_PANIC is not set
CONFIG_BOOTPARAM_HARDLOCKUP_PANIC_VALUE=0
# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0
CONFIG_DETECT_HUNG_TASK=y
CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=120
# CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set
CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=0
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_PANIC_TIMEOUT=0
CONFIG_SCHED_DEBUG=y
CONFIG_SCHEDSTATS=y
CONFIG_TIMER_STATS=y
#
# Lock Debugging (spinlocks, mutexes, etc...)
#
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_RT_MUTEX_TESTER is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
# CONFIG_DEBUG_WW_MUTEX_SLOWPATH is not set
# CONFIG_DEBUG_LOCK_ALLOC is not set
# CONFIG_PROVE_LOCKING is not set
# CONFIG_LOCK_STAT is not set
# CONFIG_DEBUG_ATOMIC_SLEEP is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
CONFIG_STACKTRACE=y
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_WRITECOUNT is not set
CONFIG_DEBUG_LIST=y
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_DEBUG_CREDENTIALS is not set
#
# RCU Debugging
#
# CONFIG_SPARSE_RCU_POINTER is not set
# CONFIG_RCU_TORTURE_TEST is not set
CONFIG_RCU_CPU_STALL_TIMEOUT=60
# CONFIG_RCU_CPU_STALL_INFO is not set
# CONFIG_RCU_TRACE is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_NOTIFIER_ERROR_INJECTION is not set
# CONFIG_FAULT_INJECTION is not set
CONFIG_LATENCYTOP=y
CONFIG_ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS=y
# CONFIG_DEBUG_STRICT_USER_COPY_CHECKS is not set
CONFIG_USER_STACKTRACE_SUPPORT=y
CONFIG_NOP_TRACER=y
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_FP_TEST=y
CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HAVE_FENTRY=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_TRACER_MAX_TRACE=y
CONFIG_TRACE_CLOCK=y
CONFIG_RING_BUFFER=y
CONFIG_EVENT_TRACING=y
CONFIG_CONTEXT_SWITCH_TRACER=y
CONFIG_RING_BUFFER_ALLOW_SWAP=y
CONFIG_TRACING=y
CONFIG_GENERIC_TRACER=y
CONFIG_TRACING_SUPPORT=y
CONFIG_FTRACE=y
CONFIG_FUNCTION_TRACER=y
CONFIG_FUNCTION_GRAPH_TRACER=y
# CONFIG_IRQSOFF_TRACER is not set
CONFIG_SCHED_TRACER=y
CONFIG_FTRACE_SYSCALLS=y
CONFIG_TRACER_SNAPSHOT=y
# CONFIG_TRACER_SNAPSHOT_PER_CPU_SWAP is not set
CONFIG_BRANCH_PROFILE_NONE=y
# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
# CONFIG_PROFILE_ALL_BRANCHES is not set
CONFIG_STACK_TRACER=y
CONFIG_BLK_DEV_IO_TRACE=y
CONFIG_KPROBE_EVENT=y
# CONFIG_UPROBE_EVENT is not set
CONFIG_PROBE_EVENTS=y
CONFIG_DYNAMIC_FTRACE=y
CONFIG_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_FUNCTION_PROFILER=y
CONFIG_FTRACE_MCOUNT_RECORD=y
# CONFIG_FTRACE_STARTUP_TEST is not set
# CONFIG_MMIOTRACE is not set
CONFIG_RING_BUFFER_BENCHMARK=m
# CONFIG_RING_BUFFER_STARTUP_TEST is not set
#
# Runtime Testing
#
# CONFIG_LKDTM is not set
# CONFIG_TEST_LIST_SORT is not set
# CONFIG_KPROBES_SANITY_TEST is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_RBTREE_TEST is not set
# CONFIG_INTERVAL_TREE_TEST is not set
# CONFIG_PERCPU_TEST is not set
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_ASYNC_RAID6_TEST is not set
# CONFIG_TEST_STRING_HELPERS is not set
# CONFIG_TEST_KSTRTOX is not set
CONFIG_PROVIDE_OHCI1394_DMA_INIT=y
CONFIG_BUILD_DOCSRC=y
# CONFIG_DMA_API_DEBUG is not set
# CONFIG_TEST_MODULE is not set
# CONFIG_TEST_USER_COPY is not set
# CONFIG_SAMPLES is not set
CONFIG_HAVE_ARCH_KGDB=y
CONFIG_KGDB=y
CONFIG_KGDB_SERIAL_CONSOLE=y
CONFIG_KGDB_TESTS=y
# CONFIG_KGDB_TESTS_ON_BOOT is not set
# CONFIG_KGDB_LOW_LEVEL_TRAP is not set
# CONFIG_KGDB_KDB is not set
CONFIG_STRICT_DEVMEM=y
# CONFIG_X86_VERBOSE_BOOTUP is not set
CONFIG_EARLY_PRINTK=y
CONFIG_EARLY_PRINTK_DBGP=y
# CONFIG_EARLY_PRINTK_EFI is not set
# CONFIG_X86_PTDUMP is not set
# CONFIG_DEBUG_RODATA is not set
# CONFIG_DEBUG_SET_MODULE_RONX is not set
CONFIG_DEBUG_NX_TEST=m
CONFIG_DOUBLEFAULT=y
# CONFIG_DEBUG_TLBFLUSH is not set
# CONFIG_IOMMU_DEBUG is not set
# CONFIG_IOMMU_STRESS is not set
CONFIG_HAVE_MMIOTRACE_SUPPORT=y
# CONFIG_X86_DECODER_SELFTEST is not set
CONFIG_IO_DELAY_TYPE_0X80=0
CONFIG_IO_DELAY_TYPE_0XED=1
CONFIG_IO_DELAY_TYPE_UDELAY=2
CONFIG_IO_DELAY_TYPE_NONE=3
CONFIG_IO_DELAY_0X80=y
# CONFIG_IO_DELAY_0XED is not set
# CONFIG_IO_DELAY_UDELAY is not set
# CONFIG_IO_DELAY_NONE is not set
CONFIG_DEFAULT_IO_DELAY_TYPE=0
CONFIG_DEBUG_BOOT_PARAMS=y
# CONFIG_CPA_DEBUG is not set
CONFIG_OPTIMIZE_INLINING=y
# CONFIG_DEBUG_NMI_SELFTEST is not set
# CONFIG_X86_DEBUG_STATIC_CPU_HAS is not set
#
# Security options
#
CONFIG_KEYS=y
# CONFIG_PERSISTENT_KEYRINGS is not set
# CONFIG_BIG_KEYS is not set
# CONFIG_TRUSTED_KEYS is not set
# CONFIG_ENCRYPTED_KEYS is not set
CONFIG_KEYS_DEBUG_PROC_KEYS=y
# CONFIG_SECURITY_DMESG_RESTRICT is not set
CONFIG_SECURITY=y
CONFIG_SECURITYFS=y
CONFIG_SECURITY_NETWORK=y
CONFIG_SECURITY_NETWORK_XFRM=y
# CONFIG_SECURITY_PATH is not set
CONFIG_LSM_MMAP_MIN_ADDR=65535
CONFIG_SECURITY_SELINUX=y
CONFIG_SECURITY_SELINUX_BOOTPARAM=y
CONFIG_SECURITY_SELINUX_BOOTPARAM_VALUE=1
CONFIG_SECURITY_SELINUX_DISABLE=y
CONFIG_SECURITY_SELINUX_DEVELOP=y
CONFIG_SECURITY_SELINUX_AVC_STATS=y
CONFIG_SECURITY_SELINUX_CHECKREQPROT_VALUE=1
# CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX is not set
# CONFIG_SECURITY_SMACK is not set
# CONFIG_SECURITY_TOMOYO is not set
# CONFIG_SECURITY_APPARMOR is not set
# CONFIG_SECURITY_YAMA is not set
CONFIG_INTEGRITY=y
# CONFIG_INTEGRITY_SIGNATURE is not set
CONFIG_INTEGRITY_AUDIT=y
CONFIG_IMA=y
CONFIG_IMA_MEASURE_PCR_IDX=10
CONFIG_IMA_LSM_RULES=y
# CONFIG_IMA_TEMPLATE is not set
CONFIG_IMA_NG_TEMPLATE=y
# CONFIG_IMA_SIG_TEMPLATE is not set
CONFIG_IMA_DEFAULT_TEMPLATE="ima-ng"
CONFIG_IMA_DEFAULT_HASH_SHA1=y
# CONFIG_IMA_DEFAULT_HASH_SHA256 is not set
# CONFIG_IMA_DEFAULT_HASH_SHA512 is not set
# CONFIG_IMA_DEFAULT_HASH_WP512 is not set
CONFIG_IMA_DEFAULT_HASH="sha1"
# CONFIG_IMA_APPRAISE is not set
# CONFIG_EVM is not set
CONFIG_DEFAULT_SECURITY_SELINUX=y
# CONFIG_DEFAULT_SECURITY_DAC is not set
CONFIG_DEFAULT_SECURITY="selinux"
CONFIG_XOR_BLOCKS=m
CONFIG_ASYNC_CORE=m
CONFIG_ASYNC_MEMCPY=m
CONFIG_ASYNC_XOR=m
CONFIG_ASYNC_PQ=m
CONFIG_ASYNC_RAID6_RECOV=m
CONFIG_CRYPTO=y
#
# Crypto core or helper
#
CONFIG_CRYPTO_FIPS=y
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=m
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=m
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=m
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_PCOMP=m
CONFIG_CRYPTO_PCOMP2=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
# CONFIG_CRYPTO_USER is not set
# CONFIG_CRYPTO_MANAGER_DISABLE_TESTS is not set
CONFIG_CRYPTO_GF128MUL=m
CONFIG_CRYPTO_NULL=m
# CONFIG_CRYPTO_PCRYPT is not set
CONFIG_CRYPTO_WORKQUEUE=y
CONFIG_CRYPTO_CRYPTD=m
CONFIG_CRYPTO_AUTHENC=m
CONFIG_CRYPTO_TEST=m
CONFIG_CRYPTO_ABLK_HELPER=m
CONFIG_CRYPTO_GLUE_HELPER_X86=m
#
# Authenticated Encryption with Associated Data
#
CONFIG_CRYPTO_CCM=m
CONFIG_CRYPTO_GCM=m
CONFIG_CRYPTO_SEQIV=m
#
# Block modes
#
CONFIG_CRYPTO_CBC=m
CONFIG_CRYPTO_CTR=m
CONFIG_CRYPTO_CTS=m
CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_LRW=m
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_XTS=m
#
# Hash modes
#
CONFIG_CRYPTO_CMAC=m
CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m
#
# Digest
#
CONFIG_CRYPTO_CRC32C=y
CONFIG_CRYPTO_CRC32C_INTEL=m
# CONFIG_CRYPTO_CRC32 is not set
# CONFIG_CRYPTO_CRC32_PCLMUL is not set
CONFIG_CRYPTO_CRCT10DIF=m
# CONFIG_CRYPTO_CRCT10DIF_PCLMUL is not set
CONFIG_CRYPTO_GHASH=m
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD128=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_RMD256=m
CONFIG_CRYPTO_RMD320=m
CONFIG_CRYPTO_SHA1=y
# CONFIG_CRYPTO_SHA1_SSSE3 is not set
# CONFIG_CRYPTO_SHA256_SSSE3 is not set
# CONFIG_CRYPTO_SHA512_SSSE3 is not set
CONFIG_CRYPTO_SHA256=m
CONFIG_CRYPTO_SHA512=m
CONFIG_CRYPTO_TGR192=m
CONFIG_CRYPTO_WP512=m
CONFIG_CRYPTO_GHASH_CLMUL_NI_INTEL=m
#
# Ciphers
#
CONFIG_CRYPTO_AES=y
CONFIG_CRYPTO_AES_X86_64=m
CONFIG_CRYPTO_AES_NI_INTEL=m
CONFIG_CRYPTO_ANUBIS=m
CONFIG_CRYPTO_ARC4=m
CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_BLOWFISH_COMMON=m
# CONFIG_CRYPTO_BLOWFISH_X86_64 is not set
CONFIG_CRYPTO_CAMELLIA=m
# CONFIG_CRYPTO_CAMELLIA_X86_64 is not set
# CONFIG_CRYPTO_CAMELLIA_AESNI_AVX_X86_64 is not set
# CONFIG_CRYPTO_CAMELLIA_AESNI_AVX2_X86_64 is not set
CONFIG_CRYPTO_CAST_COMMON=m
CONFIG_CRYPTO_CAST5=m
# CONFIG_CRYPTO_CAST5_AVX_X86_64 is not set
CONFIG_CRYPTO_CAST6=m
# CONFIG_CRYPTO_CAST6_AVX_X86_64 is not set
CONFIG_CRYPTO_DES=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
# CONFIG_CRYPTO_SALSA20 is not set
CONFIG_CRYPTO_SALSA20_X86_64=m
CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_SERPENT=m
# CONFIG_CRYPTO_SERPENT_SSE2_X86_64 is not set
# CONFIG_CRYPTO_SERPENT_AVX_X86_64 is not set
# CONFIG_CRYPTO_SERPENT_AVX2_X86_64 is not set
CONFIG_CRYPTO_TEA=m
# CONFIG_CRYPTO_TWOFISH is not set
CONFIG_CRYPTO_TWOFISH_COMMON=m
CONFIG_CRYPTO_TWOFISH_X86_64=m
# CONFIG_CRYPTO_TWOFISH_X86_64_3WAY is not set
# CONFIG_CRYPTO_TWOFISH_AVX_X86_64 is not set
#
# Compression
#
CONFIG_CRYPTO_DEFLATE=m
CONFIG_CRYPTO_ZLIB=m
CONFIG_CRYPTO_LZO=y
# CONFIG_CRYPTO_LZ4 is not set
# CONFIG_CRYPTO_LZ4HC is not set
#
# Random Number Generation
#
CONFIG_CRYPTO_ANSI_CPRNG=m
CONFIG_CRYPTO_USER_API=m
CONFIG_CRYPTO_USER_API_HASH=m
CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_HASH_INFO=y
CONFIG_CRYPTO_HW=y
CONFIG_CRYPTO_DEV_PADLOCK=m
CONFIG_CRYPTO_DEV_PADLOCK_AES=m
CONFIG_CRYPTO_DEV_PADLOCK_SHA=m
# CONFIG_CRYPTO_DEV_CCP is not set
CONFIG_ASYMMETRIC_KEY_TYPE=y
CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE=y
CONFIG_PUBLIC_KEY_ALGO_RSA=y
CONFIG_X509_CERTIFICATE_PARSER=y
CONFIG_HAVE_KVM=y
CONFIG_HAVE_KVM_IRQCHIP=y
CONFIG_HAVE_KVM_IRQ_ROUTING=y
CONFIG_HAVE_KVM_EVENTFD=y
CONFIG_KVM_APIC_ARCHITECTURE=y
CONFIG_KVM_MMIO=y
CONFIG_KVM_ASYNC_PF=y
CONFIG_HAVE_KVM_MSI=y
CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT=y
CONFIG_KVM_VFIO=y
CONFIG_VIRTUALIZATION=y
CONFIG_KVM=m
CONFIG_KVM_INTEL=m
CONFIG_KVM_AMD=m
# CONFIG_KVM_MMU_AUDIT is not set
CONFIG_KVM_DEVICE_ASSIGNMENT=y
CONFIG_BINARY_PRINTF=y
#
# Library routines
#
CONFIG_RAID6_PQ=m
CONFIG_BITREVERSE=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
CONFIG_GENERIC_NET_UTILS=y
CONFIG_GENERIC_FIND_FIRST_BIT=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_IOMAP=y
CONFIG_GENERIC_IO=y
CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
CONFIG_CRC_CCITT=m
CONFIG_CRC16=y
CONFIG_CRC_T10DIF=m
CONFIG_CRC_ITU_T=m
CONFIG_CRC32=y
# CONFIG_CRC32_SELFTEST is not set
CONFIG_CRC32_SLICEBY8=y
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
CONFIG_CRC7=m
CONFIG_LIBCRC32C=m
# CONFIG_CRC8 is not set
# CONFIG_RANDOM32_SELFTEST is not set
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=y
CONFIG_LZO_COMPRESS=y
CONFIG_LZO_DECOMPRESS=y
CONFIG_LZ4_DECOMPRESS=y
CONFIG_XZ_DEC=y
CONFIG_XZ_DEC_X86=y
CONFIG_XZ_DEC_POWERPC=y
CONFIG_XZ_DEC_IA64=y
CONFIG_XZ_DEC_ARM=y
CONFIG_XZ_DEC_ARMTHUMB=y
CONFIG_XZ_DEC_SPARC=y
CONFIG_XZ_DEC_BCJ=y
# CONFIG_XZ_DEC_TEST is not set
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_XZ=y
CONFIG_DECOMPRESS_LZO=y
CONFIG_DECOMPRESS_LZ4=y
CONFIG_GENERIC_ALLOCATOR=y
CONFIG_REED_SOLOMON=m
CONFIG_REED_SOLOMON_DEC16=y
CONFIG_BCH=m
CONFIG_TEXTSEARCH=y
CONFIG_TEXTSEARCH_KMP=m
CONFIG_TEXTSEARCH_BM=m
CONFIG_TEXTSEARCH_FSM=m
CONFIG_ASSOCIATIVE_ARRAY=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_CHECK_SIGNATURE=y
CONFIG_CPUMASK_OFFSTACK=y
CONFIG_CPU_RMAP=y
CONFIG_DQL=y
CONFIG_NLATTR=y
CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE=y
CONFIG_LRU_CACHE=m
CONFIG_AVERAGE=y
CONFIG_CLZ_TAB=y
# CONFIG_CORDIC is not set
# CONFIG_DDR is not set
CONFIG_MPILIB=y
CONFIG_OID_REGISTRY=y
CONFIG_UCS2_STRING=y
CONFIG_FONT_SUPPORT=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
[-- Attachment #3: Type: text/plain, Size: 183 bytes --]
_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
2014-04-04 16:55 ` Konrad Rzeszutek Wilk
` (5 preceding siblings ...)
(?)
@ 2014-04-04 18:14 ` Marcos E. Matsunaga
-1 siblings, 0 replies; 109+ messages in thread
From: Marcos E. Matsunaga @ 2014-04-04 18:14 UTC (permalink / raw)
To: Konrad Rzeszutek Wilk, Waiman Long
Cc: x86, Gleb Natapov, Peter Zijlstra, virtualization,
H. Peter Anvin, Thomas Gleixner, linux-arch, kvm,
Raghavendra K T, Ingo Molnar, xen-devel, Paul E. McKenney,
Scott J Norton, Paolo Bonzini, Oleg Nesterov, boris.ostrovsky,
Aswin Chandramouleeswaran, Chegu Vinod, linux-kernel,
David Vrabel, Linus Torvalds
[-- Attachment #1: Type: text/plain, Size: 2931 bytes --]
Attached is the .config I used.
On 04/04/2014 12:55 PM, Konrad Rzeszutek Wilk wrote:
> On Thu, Apr 03, 2014 at 10:57:18PM -0400, Waiman Long wrote:
>> On 04/03/2014 01:23 PM, Konrad Rzeszutek Wilk wrote:
>>> On Wed, Apr 02, 2014 at 10:10:17PM -0400, Waiman Long wrote:
>>>> On 04/02/2014 04:35 PM, Waiman Long wrote:
>>>>> On 04/02/2014 10:32 AM, Konrad Rzeszutek Wilk wrote:
>>>>>> On Wed, Apr 02, 2014 at 09:27:29AM -0400, Waiman Long wrote:
>>>>>>> N.B. Sorry for the duplicate. This patch series were resent as the
>>>>>>> original one was rejected by the vger.kernel.org list server
>>>>>>> due to long header. There is no change in content.
>>>>>>>
>>>>>>> v7->v8:
>>>>>>> - Remove one unneeded atomic operation from the slowpath, thus
>>>>>>> improving performance.
>>>>>>> - Simplify some of the codes and add more comments.
>>>>>>> - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
>>>>>>> unfair lock.
>>>>>>> - Reduce unfair lock slowpath lock stealing frequency depending
>>>>>>> on its distance from the queue head.
>>>>>>> - Add performance data for IvyBridge-EX CPU.
>>>>>> FYI, your v7 patch with 32 VCPUs (on a 32 cpu socket machine) on an
>>>>>> HVM guest under Xen after a while stops working. The workload
>>>>>> is doing 'make -j32' on the Linux kernel.
>>>>>>
>>>>>> Completely unresponsive. Thoughts?
>>>>>>
>>>>> Thank for reporting that. I haven't done that much testing on Xen.
>>>>> My focus was in KVM. I will perform more test on Xen to see if I
>>>>> can reproduce the problem.
>>>>>
>>>> BTW, does the halting and sending IPI mechanism work in HVM? I saw
>>> Yes.
>>>> that in RHEL7, PV spinlock was explicitly disabled when in HVM mode.
>>>> However, this piece of code isn't in upstream code. So I wonder if
>>>> there is problem with that.
>>> The PV ticketlock fixed it for HVM. It was disabled before because
>>> the PV guests were using bytelocks while the HVM were using ticketlocks
>>> and you couldnt' swap in PV bytelocks for ticketlocks during startup.
>> The RHEL7 code has used PV ticketlock already. RHEL7 uses a single
>> kernel for all configurations. So PV ticketlock as well as Xen and
>> KVM support was compiled in. I think booting the kernel on bare
>> metal will cause the Xen code to work in HVM mode thus activating
>> the PV spinlock code which has a negative impact on performance.
> Huh? -EPARSE
>
>> That may be why it was disabled so that the bare metal performance
>> will not be impacted.
> I am not following you.
>> BTW, could you send me more information about the configuration of
>> the machine, like the .config file that you used?
> Marcos, could you please send that information to Peter. Thanks!
>> -Longman
--
Regards,
Marcos Eduardo Matsunaga
Oracle USA
Linux Engineering
“The statements and opinions expressed here are my own and do not
necessarily represent those of Oracle Corporation.”
[-- Attachment #2: config-3.14.0-qspinlockV8+ --]
[-- Type: text/plain, Size: 125953 bytes --]
#
# Automatically generated file; DO NOT EDIT.
# Linux/x86 3.14.0 Kernel Configuration
#
CONFIG_64BIT=y
CONFIG_X86_64=y
CONFIG_X86=y
CONFIG_INSTRUCTION_DECODER=y
CONFIG_OUTPUT_FORMAT="elf64-x86-64"
CONFIG_ARCH_DEFCONFIG="arch/x86/configs/x86_64_defconfig"
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_MMU=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_ARCH_HAS_CPU_RELAX=y
CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
CONFIG_ARCH_HAS_CPU_AUTOPROBE=y
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y
CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
CONFIG_ZONE_DMA32=y
CONFIG_AUDIT_ARCH=y
CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING=y
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
CONFIG_X86_64_SMP=y
CONFIG_X86_HT=y
CONFIG_ARCH_HWEIGHT_CFLAGS="-fcall-saved-rdi -fcall-saved-rsi -fcall-saved-rdx -fcall-saved-rcx -fcall-saved-r8 -fcall-saved-r9 -fcall-saved-r10 -fcall-saved-r11"
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_EXTABLE_SORT=y
#
# General setup
#
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_CROSS_COMPILE=""
# CONFIG_COMPILE_TEST is not set
CONFIG_LOCALVERSION="-qspinlockV8"
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_BZIP2=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_HAVE_KERNEL_XZ=y
CONFIG_HAVE_KERNEL_LZO=y
CONFIG_HAVE_KERNEL_LZ4=y
CONFIG_KERNEL_GZIP=y
# CONFIG_KERNEL_BZIP2 is not set
# CONFIG_KERNEL_LZMA is not set
# CONFIG_KERNEL_XZ is not set
# CONFIG_KERNEL_LZO is not set
# CONFIG_KERNEL_LZ4 is not set
CONFIG_DEFAULT_HOSTNAME="(none)"
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
CONFIG_FHANDLE=y
CONFIG_AUDIT=y
CONFIG_AUDITSYSCALL=y
CONFIG_AUDIT_WATCH=y
CONFIG_AUDIT_TREE=y
#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_PENDING_IRQ=y
CONFIG_IRQ_DOMAIN=y
# CONFIG_IRQ_DOMAIN_DEBUG is not set
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_SPARSE_IRQ=y
CONFIG_CLOCKSOURCE_WATCHDOG=y
CONFIG_ARCH_CLOCKSOURCE_DATA=y
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST=y
CONFIG_GENERIC_CMOS_UPDATE=y
#
# Timers subsystem
#
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ_COMMON=y
# CONFIG_HZ_PERIODIC is not set
CONFIG_NO_HZ_IDLE=y
# CONFIG_NO_HZ_FULL is not set
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
#
# CPU/Task time and stats accounting
#
CONFIG_TICK_CPU_ACCOUNTING=y
# CONFIG_VIRT_CPU_ACCOUNTING_GEN is not set
# CONFIG_IRQ_TIME_ACCOUNTING is not set
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_TASKSTATS=y
CONFIG_TASK_DELAY_ACCT=y
CONFIG_TASK_XACCT=y
CONFIG_TASK_IO_ACCOUNTING=y
#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
# CONFIG_PREEMPT_RCU is not set
CONFIG_RCU_STALL_COMMON=y
# CONFIG_RCU_USER_QS is not set
CONFIG_RCU_FANOUT=64
CONFIG_RCU_FANOUT_LEAF=16
# CONFIG_RCU_FANOUT_EXACT is not set
# CONFIG_RCU_FAST_NO_HZ is not set
# CONFIG_TREE_RCU_TRACE is not set
# CONFIG_RCU_NOCB_CPU is not set
# CONFIG_IKCONFIG is not set
CONFIG_LOG_BUF_SHIFT=20
CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y
CONFIG_ARCH_SUPPORTS_NUMA_BALANCING=y
CONFIG_ARCH_SUPPORTS_INT128=y
CONFIG_ARCH_WANTS_PROT_NUMA_PROT_NONE=y
# CONFIG_NUMA_BALANCING is not set
CONFIG_CGROUPS=y
# CONFIG_CGROUP_DEBUG is not set
CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CPUSETS=y
CONFIG_PROC_PID_CPUSET=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_RESOURCE_COUNTERS=y
# CONFIG_MEMCG is not set
# CONFIG_CGROUP_HUGETLB is not set
# CONFIG_CGROUP_PERF is not set
CONFIG_CGROUP_SCHED=y
CONFIG_FAIR_GROUP_SCHED=y
# CONFIG_CFS_BANDWIDTH is not set
CONFIG_RT_GROUP_SCHED=y
CONFIG_BLK_CGROUP=y
# CONFIG_DEBUG_BLK_CGROUP is not set
# CONFIG_CHECKPOINT_RESTORE is not set
CONFIG_NAMESPACES=y
CONFIG_UTS_NS=y
CONFIG_IPC_NS=y
# CONFIG_USER_NS is not set
CONFIG_PID_NS=y
CONFIG_NET_NS=y
# CONFIG_SCHED_AUTOGROUP is not set
# CONFIG_SYSFS_DEPRECATED is not set
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_RD_XZ=y
CONFIG_RD_LZO=y
CONFIG_RD_LZ4=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
CONFIG_HAVE_UID16=y
CONFIG_SYSCTL_EXCEPTION_TRACE=y
CONFIG_HAVE_PCSPKR_PLATFORM=y
# CONFIG_EXPERT is not set
CONFIG_UID16=y
# CONFIG_SYSCTL_SYSCALL is not set
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_PCSPKR_PLATFORM=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_PCI_QUIRKS=y
# CONFIG_EMBEDDED is not set
CONFIG_HAVE_PERF_EVENTS=y
#
# Kernel Performance Events And Counters
#
CONFIG_PERF_EVENTS=y
# CONFIG_DEBUG_PERF_USE_VMALLOC is not set
CONFIG_VM_EVENT_COUNTERS=y
# CONFIG_COMPAT_BRK is not set
CONFIG_SLAB=y
# CONFIG_SLUB is not set
CONFIG_PROFILING=y
CONFIG_TRACEPOINTS=y
CONFIG_OPROFILE=m
# CONFIG_OPROFILE_EVENT_MULTIPLEX is not set
CONFIG_HAVE_OPROFILE=y
CONFIG_OPROFILE_NMI_TIMER=y
CONFIG_KPROBES=y
# CONFIG_JUMP_LABEL is not set
CONFIG_OPTPROBES=y
CONFIG_KPROBES_ON_FTRACE=y
# CONFIG_HAVE_64BIT_ALIGNED_ACCESS is not set
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
CONFIG_ARCH_USE_BUILTIN_BSWAP=y
CONFIG_KRETPROBES=y
CONFIG_USER_RETURN_NOTIFIER=y
CONFIG_HAVE_IOREMAP_PROT=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_OPTPROBES=y
CONFIG_HAVE_KPROBES_ON_FTRACE=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_DMA_ATTRS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_DMA_API_DEBUG=y
CONFIG_HAVE_HW_BREAKPOINT=y
CONFIG_HAVE_MIXED_BREAKPOINTS_REGS=y
CONFIG_HAVE_USER_RETURN_NOTIFIER=y
CONFIG_HAVE_PERF_EVENTS_NMI=y
CONFIG_HAVE_PERF_REGS=y
CONFIG_HAVE_PERF_USER_STACK_DUMP=y
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_HAVE_CMPXCHG_LOCAL=y
CONFIG_HAVE_CMPXCHG_DOUBLE=y
CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION=y
CONFIG_ARCH_WANT_OLD_COMPAT_IPC=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
CONFIG_SECCOMP_FILTER=y
CONFIG_HAVE_CC_STACKPROTECTOR=y
# CONFIG_CC_STACKPROTECTOR is not set
CONFIG_CC_STACKPROTECTOR_NONE=y
# CONFIG_CC_STACKPROTECTOR_REGULAR is not set
# CONFIG_CC_STACKPROTECTOR_STRONG is not set
CONFIG_HAVE_CONTEXT_TRACKING=y
CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
CONFIG_HAVE_ARCH_SOFT_DIRTY=y
CONFIG_MODULES_USE_ELF_RELA=y
CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y
CONFIG_OLD_SIGSUSPEND3=y
CONFIG_COMPAT_OLD_SIGACTION=y
#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_SYSTEM_TRUSTED_KEYRING=y
CONFIG_MODULES=y
CONFIG_MODULE_FORCE_LOAD=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_MODULE_FORCE_UNLOAD is not set
CONFIG_MODVERSIONS=y
CONFIG_MODULE_SRCVERSION_ALL=y
CONFIG_MODULE_SIG=y
# CONFIG_MODULE_SIG_FORCE is not set
CONFIG_MODULE_SIG_ALL=y
CONFIG_MODULE_SIG_SHA1=y
# CONFIG_MODULE_SIG_SHA224 is not set
# CONFIG_MODULE_SIG_SHA256 is not set
# CONFIG_MODULE_SIG_SHA384 is not set
# CONFIG_MODULE_SIG_SHA512 is not set
CONFIG_MODULE_SIG_HASH="sha1"
CONFIG_STOP_MACHINE=y
CONFIG_BLOCK=y
CONFIG_BLK_DEV_BSG=y
CONFIG_BLK_DEV_BSGLIB=y
CONFIG_BLK_DEV_INTEGRITY=y
CONFIG_BLK_DEV_THROTTLING=y
# CONFIG_BLK_CMDLINE_PARSER is not set
#
# Partition Types
#
CONFIG_PARTITION_ADVANCED=y
# CONFIG_ACORN_PARTITION is not set
# CONFIG_AIX_PARTITION is not set
CONFIG_OSF_PARTITION=y
CONFIG_AMIGA_PARTITION=y
# CONFIG_ATARI_PARTITION is not set
CONFIG_MAC_PARTITION=y
CONFIG_MSDOS_PARTITION=y
CONFIG_BSD_DISKLABEL=y
CONFIG_MINIX_SUBPARTITION=y
CONFIG_SOLARIS_X86_PARTITION=y
CONFIG_UNIXWARE_DISKLABEL=y
# CONFIG_LDM_PARTITION is not set
CONFIG_SGI_PARTITION=y
# CONFIG_ULTRIX_PARTITION is not set
CONFIG_SUN_PARTITION=y
CONFIG_KARMA_PARTITION=y
CONFIG_EFI_PARTITION=y
# CONFIG_SYSV68_PARTITION is not set
# CONFIG_CMDLINE_PARTITION is not set
CONFIG_BLOCK_COMPAT=y
#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
CONFIG_CFQ_GROUP_IOSCHED=y
CONFIG_DEFAULT_DEADLINE=y
# CONFIG_DEFAULT_CFQ is not set
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="deadline"
CONFIG_PREEMPT_NOTIFIERS=y
CONFIG_ASN1=y
CONFIG_UNINLINE_SPIN_UNLOCK=y
CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
CONFIG_INLINE_READ_UNLOCK=y
CONFIG_INLINE_READ_UNLOCK_IRQ=y
CONFIG_INLINE_WRITE_UNLOCK=y
CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
CONFIG_MUTEX_SPIN_ON_OWNER=y
CONFIG_ARCH_USE_QUEUE_SPINLOCK=y
CONFIG_QUEUE_SPINLOCK=y
CONFIG_FREEZER=y
#
# Processor type and features
#
CONFIG_ZONE_DMA=y
CONFIG_SMP=y
CONFIG_X86_MPPARSE=y
CONFIG_X86_EXTENDED_PLATFORM=y
# CONFIG_X86_VSMP is not set
# CONFIG_X86_INTEL_LPSS is not set
CONFIG_X86_SUPPORTS_MEMORY_FAILURE=y
CONFIG_SCHED_OMIT_FRAME_POINTER=y
CONFIG_HYPERVISOR_GUEST=y
CONFIG_PARAVIRT=y
# CONFIG_PARAVIRT_DEBUG is not set
CONFIG_PARAVIRT_SPINLOCKS=y
CONFIG_PARAVIRT_UNFAIR_LOCKS=y
CONFIG_XEN=y
CONFIG_XEN_DOM0=y
CONFIG_XEN_PRIVILEGED_GUEST=y
CONFIG_XEN_PVHVM=y
CONFIG_XEN_MAX_DOMAIN_MEMORY=500
CONFIG_XEN_SAVE_RESTORE=y
# CONFIG_XEN_DEBUG_FS is not set
# CONFIG_XEN_PVH is not set
CONFIG_KVM_GUEST=y
# CONFIG_KVM_DEBUG_FS is not set
# CONFIG_PARAVIRT_TIME_ACCOUNTING is not set
CONFIG_PARAVIRT_CLOCK=y
CONFIG_NO_BOOTMEM=y
# CONFIG_MEMTEST is not set
# CONFIG_MK8 is not set
# CONFIG_MPSC is not set
# CONFIG_MCORE2 is not set
# CONFIG_MATOM is not set
CONFIG_GENERIC_CPU=y
CONFIG_X86_INTERNODE_CACHE_SHIFT=6
CONFIG_X86_L1_CACHE_SHIFT=6
CONFIG_X86_TSC=y
CONFIG_X86_CMPXCHG64=y
CONFIG_X86_CMOV=y
CONFIG_X86_MINIMUM_CPU_FAMILY=64
CONFIG_X86_DEBUGCTLMSR=y
CONFIG_CPU_SUP_INTEL=y
CONFIG_CPU_SUP_AMD=y
CONFIG_CPU_SUP_CENTAUR=y
CONFIG_HPET_TIMER=y
CONFIG_HPET_EMULATE_RTC=y
CONFIG_DMI=y
CONFIG_GART_IOMMU=y
CONFIG_CALGARY_IOMMU=y
CONFIG_CALGARY_IOMMU_ENABLED_BY_DEFAULT=y
CONFIG_SWIOTLB=y
CONFIG_IOMMU_HELPER=y
CONFIG_MAXSMP=y
CONFIG_NR_CPUS=8192
CONFIG_SCHED_SMT=y
CONFIG_SCHED_MC=y
# CONFIG_PREEMPT_NONE is not set
CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_PREEMPT is not set
CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y
CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS=y
CONFIG_X86_MCE=y
CONFIG_X86_MCE_INTEL=y
CONFIG_X86_MCE_AMD=y
CONFIG_X86_MCE_THRESHOLD=y
CONFIG_X86_MCE_INJECT=m
CONFIG_X86_THERMAL_VECTOR=y
CONFIG_I8K=m
CONFIG_MICROCODE=m
CONFIG_MICROCODE_INTEL=y
CONFIG_MICROCODE_AMD=y
CONFIG_MICROCODE_OLD_INTERFACE=y
# CONFIG_MICROCODE_INTEL_EARLY is not set
# CONFIG_MICROCODE_AMD_EARLY is not set
CONFIG_X86_MSR=y
CONFIG_X86_CPUID=y
CONFIG_ARCH_PHYS_ADDR_T_64BIT=y
CONFIG_ARCH_DMA_ADDR_T_64BIT=y
CONFIG_DIRECT_GBPAGES=y
CONFIG_NUMA=y
CONFIG_AMD_NUMA=y
CONFIG_X86_64_ACPI_NUMA=y
CONFIG_NODES_SPAN_OTHER_NODES=y
# CONFIG_NUMA_EMU is not set
CONFIG_NODES_SHIFT=10
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_DEFAULT=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_MEMORY_PROBE=y
CONFIG_ARCH_PROC_KCORE_TEXT=y
CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_SPARSEMEM_MANUAL=y
CONFIG_SPARSEMEM=y
CONFIG_NEED_MULTIPLE_NODES=y
CONFIG_HAVE_MEMORY_PRESENT=y
CONFIG_SPARSEMEM_EXTREME=y
CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
CONFIG_SPARSEMEM_ALLOC_MEM_MAP_TOGETHER=y
CONFIG_SPARSEMEM_VMEMMAP=y
CONFIG_HAVE_MEMBLOCK=y
CONFIG_HAVE_MEMBLOCK_NODE_MAP=y
CONFIG_ARCH_DISCARD_MEMBLOCK=y
CONFIG_MEMORY_ISOLATION=y
# CONFIG_MOVABLE_NODE is not set
# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
CONFIG_MEMORY_HOTPLUG=y
CONFIG_MEMORY_HOTPLUG_SPARSE=y
# CONFIG_MEMORY_HOTREMOVE is not set
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK=y
CONFIG_BALLOON_COMPACTION=y
CONFIG_COMPACTION=y
CONFIG_MIGRATION=y
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_ZONE_DMA_FLAG=1
CONFIG_BOUNCE=y
CONFIG_NEED_BOUNCE_POOL=y
CONFIG_VIRT_TO_BUS=y
CONFIG_MMU_NOTIFIER=y
CONFIG_KSM=y
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_ARCH_SUPPORTS_MEMORY_FAILURE=y
CONFIG_MEMORY_FAILURE=y
CONFIG_HWPOISON_INJECT=m
CONFIG_TRANSPARENT_HUGEPAGE=y
CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS=y
# CONFIG_TRANSPARENT_HUGEPAGE_MADVISE is not set
CONFIG_CROSS_MEMORY_ATTACH=y
CONFIG_CLEANCACHE=y
CONFIG_FRONTSWAP=y
# CONFIG_CMA is not set
# CONFIG_ZBUD is not set
# CONFIG_ZSWAP is not set
# CONFIG_ZSMALLOC is not set
# CONFIG_X86_CHECK_BIOS_CORRUPTION is not set
CONFIG_X86_RESERVE_LOW=64
CONFIG_MTRR=y
CONFIG_MTRR_SANITIZER=y
CONFIG_MTRR_SANITIZER_ENABLE_DEFAULT=1
CONFIG_MTRR_SANITIZER_SPARE_REG_NR_DEFAULT=1
CONFIG_X86_PAT=y
CONFIG_ARCH_USES_PG_UNCACHED=y
CONFIG_ARCH_RANDOM=y
CONFIG_X86_SMAP=y
CONFIG_EFI=y
# CONFIG_EFI_STUB is not set
CONFIG_SECCOMP=y
# CONFIG_HZ_100 is not set
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
CONFIG_HZ_1000=y
CONFIG_HZ=1000
CONFIG_SCHED_HRTICK=y
CONFIG_KEXEC=y
CONFIG_CRASH_DUMP=y
CONFIG_KEXEC_JUMP=y
CONFIG_PHYSICAL_START=0x1000000
CONFIG_RELOCATABLE=y
CONFIG_PHYSICAL_ALIGN=0x1000000
CONFIG_HOTPLUG_CPU=y
# CONFIG_BOOTPARAM_HOTPLUG_CPU0 is not set
# CONFIG_DEBUG_HOTPLUG_CPU0 is not set
# CONFIG_COMPAT_VDSO is not set
# CONFIG_CMDLINE_BOOL is not set
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y
CONFIG_USE_PERCPU_NUMA_NODE_ID=y
#
# Power management and ACPI options
#
CONFIG_ARCH_HIBERNATION_HEADER=y
CONFIG_SUSPEND=y
CONFIG_SUSPEND_FREEZER=y
CONFIG_HIBERNATE_CALLBACKS=y
CONFIG_HIBERNATION=y
CONFIG_PM_STD_PARTITION=""
CONFIG_PM_SLEEP=y
CONFIG_PM_SLEEP_SMP=y
# CONFIG_PM_AUTOSLEEP is not set
# CONFIG_PM_WAKELOCKS is not set
CONFIG_PM_RUNTIME=y
CONFIG_PM=y
# CONFIG_PM_DEBUG is not set
# CONFIG_WQ_POWER_EFFICIENT_DEFAULT is not set
CONFIG_ACPI=y
CONFIG_ACPI_SLEEP=y
CONFIG_ACPI_PROCFS=y
# CONFIG_ACPI_EC_DEBUGFS is not set
CONFIG_ACPI_AC=y
CONFIG_ACPI_BATTERY=y
CONFIG_ACPI_BUTTON=y
CONFIG_ACPI_VIDEO=m
CONFIG_ACPI_FAN=y
CONFIG_ACPI_DOCK=y
CONFIG_ACPI_PROCESSOR=y
CONFIG_ACPI_IPMI=m
CONFIG_ACPI_HOTPLUG_CPU=y
CONFIG_ACPI_PROCESSOR_AGGREGATOR=m
CONFIG_ACPI_THERMAL=y
CONFIG_ACPI_NUMA=y
# CONFIG_ACPI_CUSTOM_DSDT is not set
# CONFIG_ACPI_INITRD_TABLE_OVERRIDE is not set
# CONFIG_ACPI_DEBUG is not set
CONFIG_ACPI_PCI_SLOT=y
CONFIG_X86_PM_TIMER=y
CONFIG_ACPI_CONTAINER=y
# CONFIG_ACPI_HOTPLUG_MEMORY is not set
CONFIG_ACPI_SBS=m
CONFIG_ACPI_HED=m
# CONFIG_ACPI_CUSTOM_METHOD is not set
# CONFIG_ACPI_BGRT is not set
CONFIG_ACPI_APEI=y
# CONFIG_ACPI_APEI_GHES is not set
# CONFIG_ACPI_APEI_PCIEAER is not set
# CONFIG_ACPI_APEI_MEMORY_FAILURE is not set
CONFIG_ACPI_APEI_EINJ=m
CONFIG_ACPI_APEI_ERST_DEBUG=m
# CONFIG_ACPI_EXTLOG is not set
CONFIG_SFI=y
#
# CPU Frequency scaling
#
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_GOV_COMMON=y
CONFIG_CPU_FREQ_STAT=m
CONFIG_CPU_FREQ_STAT_DETAILS=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=m
CONFIG_CPU_FREQ_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_ONDEMAND=m
CONFIG_CPU_FREQ_GOV_CONSERVATIVE=m
#
# x86 CPU frequency scaling drivers
#
# CONFIG_X86_INTEL_PSTATE is not set
CONFIG_X86_PCC_CPUFREQ=m
CONFIG_X86_ACPI_CPUFREQ=m
CONFIG_X86_ACPI_CPUFREQ_CPB=y
CONFIG_X86_POWERNOW_K8=m
# CONFIG_X86_AMD_FREQ_SENSITIVITY is not set
# CONFIG_X86_SPEEDSTEP_CENTRINO is not set
CONFIG_X86_P4_CLOCKMOD=m
#
# shared options
#
CONFIG_X86_SPEEDSTEP_LIB=m
#
# CPU Idle
#
CONFIG_CPU_IDLE=y
# CONFIG_CPU_IDLE_MULTIPLE_DRIVERS is not set
CONFIG_CPU_IDLE_GOV_LADDER=y
CONFIG_CPU_IDLE_GOV_MENU=y
# CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED is not set
CONFIG_INTEL_IDLE=y
#
# Memory power savings
#
CONFIG_I7300_IDLE_IOAT_CHANNEL=y
CONFIG_I7300_IDLE=m
#
# Bus options (PCI etc.)
#
CONFIG_PCI=y
CONFIG_PCI_DIRECT=y
CONFIG_PCI_MMCONFIG=y
CONFIG_PCI_XEN=y
CONFIG_PCI_DOMAINS=y
CONFIG_PCIEPORTBUS=y
CONFIG_HOTPLUG_PCI_PCIE=y
CONFIG_PCIEAER=y
CONFIG_PCIE_ECRC=y
CONFIG_PCIEAER_INJECT=m
CONFIG_PCIEASPM=y
# CONFIG_PCIEASPM_DEBUG is not set
CONFIG_PCIEASPM_DEFAULT=y
# CONFIG_PCIEASPM_POWERSAVE is not set
# CONFIG_PCIEASPM_PERFORMANCE is not set
CONFIG_PCIE_PME=y
CONFIG_PCI_MSI=y
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_REALLOC_ENABLE_AUTO is not set
CONFIG_PCI_STUB=y
CONFIG_XEN_PCIDEV_FRONTEND=y
CONFIG_HT_IRQ=y
CONFIG_PCI_ATS=y
CONFIG_PCI_IOV=y
CONFIG_PCI_PRI=y
CONFIG_PCI_PASID=y
CONFIG_PCI_IOAPIC=y
CONFIG_PCI_LABEL=y
#
# PCI host controller drivers
#
CONFIG_ISA_DMA_API=y
CONFIG_AMD_NB=y
CONFIG_PCCARD=y
CONFIG_PCMCIA=y
CONFIG_PCMCIA_LOAD_CIS=y
CONFIG_CARDBUS=y
#
# PC-card bridges
#
CONFIG_YENTA=m
CONFIG_YENTA_O2=y
CONFIG_YENTA_RICOH=y
CONFIG_YENTA_TI=y
CONFIG_YENTA_ENE_TUNE=y
CONFIG_YENTA_TOSHIBA=y
CONFIG_PD6729=m
# CONFIG_I82092 is not set
CONFIG_PCCARD_NONSTATIC=y
CONFIG_HOTPLUG_PCI=y
CONFIG_HOTPLUG_PCI_ACPI=y
CONFIG_HOTPLUG_PCI_ACPI_IBM=m
# CONFIG_HOTPLUG_PCI_CPCI is not set
CONFIG_HOTPLUG_PCI_SHPC=m
CONFIG_RAPIDIO=y
# CONFIG_RAPIDIO_TSI721 is not set
CONFIG_RAPIDIO_DISC_TIMEOUT=30
# CONFIG_RAPIDIO_ENABLE_RX_TX_PORTS is not set
# CONFIG_RAPIDIO_DMA_ENGINE is not set
# CONFIG_RAPIDIO_DEBUG is not set
# CONFIG_RAPIDIO_ENUM_BASIC is not set
#
# RapidIO Switch drivers
#
# CONFIG_RAPIDIO_TSI57X is not set
# CONFIG_RAPIDIO_CPS_XX is not set
# CONFIG_RAPIDIO_TSI568 is not set
# CONFIG_RAPIDIO_CPS_GEN2 is not set
# CONFIG_X86_SYSFB is not set
#
# Executable file formats / Emulations
#
CONFIG_BINFMT_ELF=y
CONFIG_COMPAT_BINFMT_ELF=y
CONFIG_ARCH_BINFMT_ELF_RANDOMIZE_PIE=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_BINFMT_SCRIPT=y
# CONFIG_HAVE_AOUT is not set
CONFIG_BINFMT_MISC=y
CONFIG_COREDUMP=y
CONFIG_IA32_EMULATION=y
# CONFIG_IA32_AOUT is not set
# CONFIG_X86_X32 is not set
CONFIG_COMPAT=y
CONFIG_COMPAT_FOR_U64_ALIGNMENT=y
CONFIG_SYSVIPC_COMPAT=y
CONFIG_KEYS_COMPAT=y
CONFIG_X86_DEV_DMA_OPS=y
CONFIG_NET=y
CONFIG_COMPAT_NETLINK_MESSAGES=y
#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_DIAG is not set
CONFIG_UNIX=y
# CONFIG_UNIX_DIAG is not set
CONFIG_XFRM=y
CONFIG_XFRM_ALGO=y
CONFIG_XFRM_USER=y
CONFIG_XFRM_SUB_POLICY=y
CONFIG_XFRM_MIGRATE=y
CONFIG_XFRM_STATISTICS=y
CONFIG_XFRM_IPCOMP=m
CONFIG_NET_KEY=m
CONFIG_NET_KEY_MIGRATE=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_ADVANCED_ROUTER=y
# CONFIG_IP_FIB_TRIE_STATS is not set
CONFIG_IP_MULTIPLE_TABLES=y
CONFIG_IP_ROUTE_MULTIPATH=y
CONFIG_IP_ROUTE_VERBOSE=y
CONFIG_IP_ROUTE_CLASSID=y
CONFIG_IP_PNP=y
# CONFIG_IP_PNP_DHCP is not set
# CONFIG_IP_PNP_BOOTP is not set
# CONFIG_IP_PNP_RARP is not set
CONFIG_NET_IPIP=m
CONFIG_NET_IPGRE_DEMUX=m
CONFIG_NET_IP_TUNNEL=m
CONFIG_NET_IPGRE=m
CONFIG_NET_IPGRE_BROADCAST=y
CONFIG_IP_MROUTE=y
CONFIG_IP_MROUTE_MULTIPLE_TABLES=y
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
CONFIG_SYN_COOKIES=y
# CONFIG_NET_IPVTI is not set
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_IPCOMP=m
CONFIG_INET_XFRM_TUNNEL=m
CONFIG_INET_TUNNEL=m
CONFIG_INET_XFRM_MODE_TRANSPORT=m
CONFIG_INET_XFRM_MODE_TUNNEL=m
CONFIG_INET_XFRM_MODE_BEET=m
CONFIG_INET_LRO=y
CONFIG_INET_DIAG=m
CONFIG_INET_TCP_DIAG=m
# CONFIG_INET_UDP_DIAG is not set
CONFIG_TCP_CONG_ADVANCED=y
CONFIG_TCP_CONG_BIC=m
CONFIG_TCP_CONG_CUBIC=y
CONFIG_TCP_CONG_WESTWOOD=m
CONFIG_TCP_CONG_HTCP=m
CONFIG_TCP_CONG_HSTCP=m
CONFIG_TCP_CONG_HYBLA=m
CONFIG_TCP_CONG_VEGAS=m
CONFIG_TCP_CONG_SCALABLE=m
CONFIG_TCP_CONG_LP=m
CONFIG_TCP_CONG_VENO=m
CONFIG_TCP_CONG_YEAH=m
CONFIG_TCP_CONG_ILLINOIS=m
CONFIG_DEFAULT_CUBIC=y
# CONFIG_DEFAULT_RENO is not set
CONFIG_DEFAULT_TCP_CONG="cubic"
CONFIG_TCP_MD5SIG=y
CONFIG_IPV6=y
CONFIG_IPV6_ROUTER_PREF=y
CONFIG_IPV6_ROUTE_INFO=y
CONFIG_IPV6_OPTIMISTIC_DAD=y
CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
CONFIG_INET6_IPCOMP=m
CONFIG_IPV6_MIP6=m
CONFIG_INET6_XFRM_TUNNEL=m
CONFIG_INET6_TUNNEL=m
CONFIG_INET6_XFRM_MODE_TRANSPORT=m
CONFIG_INET6_XFRM_MODE_TUNNEL=m
CONFIG_INET6_XFRM_MODE_BEET=m
CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION=m
# CONFIG_IPV6_VTI is not set
CONFIG_IPV6_SIT=m
# CONFIG_IPV6_SIT_6RD is not set
CONFIG_IPV6_NDISC_NODETYPE=y
CONFIG_IPV6_TUNNEL=m
# CONFIG_IPV6_GRE is not set
CONFIG_IPV6_MULTIPLE_TABLES=y
# CONFIG_IPV6_SUBTREES is not set
CONFIG_IPV6_MROUTE=y
CONFIG_IPV6_MROUTE_MULTIPLE_TABLES=y
CONFIG_IPV6_PIMSM_V2=y
CONFIG_NETLABEL=y
CONFIG_NETWORK_SECMARK=y
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set
CONFIG_NETFILTER_ADVANCED=y
CONFIG_BRIDGE_NETFILTER=y
#
# Core Netfilter Configuration
#
CONFIG_NETFILTER_NETLINK=m
# CONFIG_NETFILTER_NETLINK_ACCT is not set
CONFIG_NETFILTER_NETLINK_QUEUE=m
CONFIG_NETFILTER_NETLINK_LOG=m
CONFIG_NF_CONNTRACK=m
CONFIG_NF_CONNTRACK_MARK=y
CONFIG_NF_CONNTRACK_SECMARK=y
# CONFIG_NF_CONNTRACK_ZONES is not set
CONFIG_NF_CONNTRACK_PROCFS=y
CONFIG_NF_CONNTRACK_EVENTS=y
# CONFIG_NF_CONNTRACK_TIMEOUT is not set
# CONFIG_NF_CONNTRACK_TIMESTAMP is not set
CONFIG_NF_CT_PROTO_DCCP=m
CONFIG_NF_CT_PROTO_GRE=m
CONFIG_NF_CT_PROTO_SCTP=m
CONFIG_NF_CT_PROTO_UDPLITE=m
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
CONFIG_NF_CONNTRACK_H323=m
CONFIG_NF_CONNTRACK_IRC=m
CONFIG_NF_CONNTRACK_BROADCAST=m
CONFIG_NF_CONNTRACK_NETBIOS_NS=m
CONFIG_NF_CONNTRACK_SNMP=m
CONFIG_NF_CONNTRACK_PPTP=m
CONFIG_NF_CONNTRACK_SANE=m
CONFIG_NF_CONNTRACK_SIP=m
CONFIG_NF_CONNTRACK_TFTP=m
CONFIG_NF_CT_NETLINK=m
# CONFIG_NF_CT_NETLINK_TIMEOUT is not set
# CONFIG_NETFILTER_NETLINK_QUEUE_CT is not set
# CONFIG_NF_TABLES is not set
CONFIG_NETFILTER_XTABLES=y
#
# Xtables combined modules
#
CONFIG_NETFILTER_XT_MARK=m
CONFIG_NETFILTER_XT_CONNMARK=m
CONFIG_NETFILTER_XT_SET=m
#
# Xtables targets
#
CONFIG_NETFILTER_XT_TARGET_AUDIT=m
CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
CONFIG_NETFILTER_XT_TARGET_CONNMARK=m
CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=m
CONFIG_NETFILTER_XT_TARGET_CT=m
CONFIG_NETFILTER_XT_TARGET_DSCP=m
CONFIG_NETFILTER_XT_TARGET_HL=m
# CONFIG_NETFILTER_XT_TARGET_HMARK is not set
CONFIG_NETFILTER_XT_TARGET_IDLETIMER=m
CONFIG_NETFILTER_XT_TARGET_LED=m
# CONFIG_NETFILTER_XT_TARGET_LOG is not set
CONFIG_NETFILTER_XT_TARGET_MARK=m
CONFIG_NETFILTER_XT_TARGET_NFLOG=m
CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
CONFIG_NETFILTER_XT_TARGET_NOTRACK=m
CONFIG_NETFILTER_XT_TARGET_RATEEST=m
CONFIG_NETFILTER_XT_TARGET_TEE=m
CONFIG_NETFILTER_XT_TARGET_TPROXY=m
CONFIG_NETFILTER_XT_TARGET_TRACE=m
CONFIG_NETFILTER_XT_TARGET_SECMARK=m
CONFIG_NETFILTER_XT_TARGET_TCPMSS=m
CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP=m
#
# Xtables matches
#
CONFIG_NETFILTER_XT_MATCH_ADDRTYPE=m
# CONFIG_NETFILTER_XT_MATCH_BPF is not set
# CONFIG_NETFILTER_XT_MATCH_CGROUP is not set
CONFIG_NETFILTER_XT_MATCH_CLUSTER=m
CONFIG_NETFILTER_XT_MATCH_COMMENT=m
CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m
# CONFIG_NETFILTER_XT_MATCH_CONNLABEL is not set
CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=m
CONFIG_NETFILTER_XT_MATCH_CONNMARK=m
CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
CONFIG_NETFILTER_XT_MATCH_CPU=m
CONFIG_NETFILTER_XT_MATCH_DCCP=m
CONFIG_NETFILTER_XT_MATCH_DEVGROUP=m
CONFIG_NETFILTER_XT_MATCH_DSCP=m
CONFIG_NETFILTER_XT_MATCH_ECN=m
CONFIG_NETFILTER_XT_MATCH_ESP=m
CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m
CONFIG_NETFILTER_XT_MATCH_HELPER=m
CONFIG_NETFILTER_XT_MATCH_HL=m
# CONFIG_NETFILTER_XT_MATCH_IPCOMP is not set
CONFIG_NETFILTER_XT_MATCH_IPRANGE=m
CONFIG_NETFILTER_XT_MATCH_IPVS=m
CONFIG_NETFILTER_XT_MATCH_L2TP=m
CONFIG_NETFILTER_XT_MATCH_LENGTH=m
CONFIG_NETFILTER_XT_MATCH_LIMIT=m
CONFIG_NETFILTER_XT_MATCH_MAC=m
CONFIG_NETFILTER_XT_MATCH_MARK=m
CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m
# CONFIG_NETFILTER_XT_MATCH_NFACCT is not set
CONFIG_NETFILTER_XT_MATCH_OSF=m
CONFIG_NETFILTER_XT_MATCH_OWNER=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
CONFIG_NETFILTER_XT_MATCH_QUOTA=m
CONFIG_NETFILTER_XT_MATCH_RATEEST=m
CONFIG_NETFILTER_XT_MATCH_REALM=m
CONFIG_NETFILTER_XT_MATCH_RECENT=m
CONFIG_NETFILTER_XT_MATCH_SCTP=m
CONFIG_NETFILTER_XT_MATCH_SOCKET=m
CONFIG_NETFILTER_XT_MATCH_STATE=m
CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
CONFIG_NETFILTER_XT_MATCH_STRING=m
CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
CONFIG_NETFILTER_XT_MATCH_TIME=m
CONFIG_NETFILTER_XT_MATCH_U32=m
CONFIG_IP_SET=m
CONFIG_IP_SET_MAX=256
CONFIG_IP_SET_BITMAP_IP=m
CONFIG_IP_SET_BITMAP_IPMAC=m
CONFIG_IP_SET_BITMAP_PORT=m
CONFIG_IP_SET_HASH_IP=m
CONFIG_IP_SET_HASH_IPPORT=m
CONFIG_IP_SET_HASH_IPPORTIP=m
CONFIG_IP_SET_HASH_IPPORTNET=m
# CONFIG_IP_SET_HASH_NETPORTNET is not set
CONFIG_IP_SET_HASH_NET=m
# CONFIG_IP_SET_HASH_NETNET is not set
CONFIG_IP_SET_HASH_NETPORT=m
# CONFIG_IP_SET_HASH_NETIFACE is not set
CONFIG_IP_SET_LIST_SET=m
CONFIG_IP_VS=m
CONFIG_IP_VS_IPV6=y
# CONFIG_IP_VS_DEBUG is not set
CONFIG_IP_VS_TAB_BITS=12
#
# IPVS transport protocol load balancing support
#
CONFIG_IP_VS_PROTO_TCP=y
CONFIG_IP_VS_PROTO_UDP=y
CONFIG_IP_VS_PROTO_AH_ESP=y
CONFIG_IP_VS_PROTO_ESP=y
CONFIG_IP_VS_PROTO_AH=y
CONFIG_IP_VS_PROTO_SCTP=y
#
# IPVS scheduler
#
CONFIG_IP_VS_RR=m
CONFIG_IP_VS_WRR=m
CONFIG_IP_VS_LC=m
CONFIG_IP_VS_WLC=m
CONFIG_IP_VS_LBLC=m
CONFIG_IP_VS_LBLCR=m
CONFIG_IP_VS_DH=m
CONFIG_IP_VS_SH=m
CONFIG_IP_VS_SED=m
CONFIG_IP_VS_NQ=m
#
# IPVS SH scheduler
#
CONFIG_IP_VS_SH_TAB_BITS=8
#
# IPVS application helper
#
CONFIG_IP_VS_NFCT=y
# CONFIG_IP_VS_PE_SIP is not set
#
# IP: Netfilter Configuration
#
CONFIG_NF_DEFRAG_IPV4=m
CONFIG_NF_CONNTRACK_IPV4=m
# CONFIG_NF_CONNTRACK_PROC_COMPAT is not set
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_AH=m
CONFIG_IP_NF_MATCH_ECN=m
# CONFIG_IP_NF_MATCH_RPFILTER is not set
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
# CONFIG_IP_NF_TARGET_SYNPROXY is not set
CONFIG_IP_NF_TARGET_ULOG=m
# CONFIG_NF_NAT_IPV4 is not set
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_TARGET_CLUSTERIP=m
CONFIG_IP_NF_TARGET_ECN=m
CONFIG_IP_NF_TARGET_TTL=m
CONFIG_IP_NF_RAW=m
CONFIG_IP_NF_SECURITY=m
CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m
#
# IPv6: Netfilter Configuration
#
CONFIG_NF_DEFRAG_IPV6=m
CONFIG_NF_CONNTRACK_IPV6=m
CONFIG_IP6_NF_IPTABLES=m
CONFIG_IP6_NF_MATCH_AH=m
CONFIG_IP6_NF_MATCH_EUI64=m
CONFIG_IP6_NF_MATCH_FRAG=m
CONFIG_IP6_NF_MATCH_OPTS=m
CONFIG_IP6_NF_MATCH_HL=m
CONFIG_IP6_NF_MATCH_IPV6HEADER=m
CONFIG_IP6_NF_MATCH_MH=m
# CONFIG_IP6_NF_MATCH_RPFILTER is not set
CONFIG_IP6_NF_MATCH_RT=m
CONFIG_IP6_NF_TARGET_HL=m
CONFIG_IP6_NF_FILTER=m
CONFIG_IP6_NF_TARGET_REJECT=m
# CONFIG_IP6_NF_TARGET_SYNPROXY is not set
CONFIG_IP6_NF_MANGLE=m
CONFIG_IP6_NF_RAW=m
CONFIG_IP6_NF_SECURITY=m
# CONFIG_NF_NAT_IPV6 is not set
CONFIG_BRIDGE_NF_EBTABLES=m
CONFIG_BRIDGE_EBT_BROUTE=m
CONFIG_BRIDGE_EBT_T_FILTER=m
CONFIG_BRIDGE_EBT_T_NAT=m
CONFIG_BRIDGE_EBT_802_3=m
CONFIG_BRIDGE_EBT_AMONG=m
CONFIG_BRIDGE_EBT_ARP=m
CONFIG_BRIDGE_EBT_IP=m
CONFIG_BRIDGE_EBT_IP6=m
CONFIG_BRIDGE_EBT_LIMIT=m
CONFIG_BRIDGE_EBT_MARK=m
CONFIG_BRIDGE_EBT_PKTTYPE=m
CONFIG_BRIDGE_EBT_STP=m
CONFIG_BRIDGE_EBT_VLAN=m
CONFIG_BRIDGE_EBT_ARPREPLY=m
CONFIG_BRIDGE_EBT_DNAT=m
CONFIG_BRIDGE_EBT_MARK_T=m
CONFIG_BRIDGE_EBT_REDIRECT=m
CONFIG_BRIDGE_EBT_SNAT=m
CONFIG_BRIDGE_EBT_LOG=m
CONFIG_BRIDGE_EBT_ULOG=m
CONFIG_BRIDGE_EBT_NFLOG=m
CONFIG_IP_DCCP=m
CONFIG_INET_DCCP_DIAG=m
#
# DCCP CCIDs Configuration
#
# CONFIG_IP_DCCP_CCID2_DEBUG is not set
CONFIG_IP_DCCP_CCID3=y
# CONFIG_IP_DCCP_CCID3_DEBUG is not set
CONFIG_IP_DCCP_TFRC_LIB=y
#
# DCCP Kernel Hacking
#
# CONFIG_IP_DCCP_DEBUG is not set
CONFIG_NET_DCCPPROBE=m
CONFIG_IP_SCTP=m
CONFIG_NET_SCTPPROBE=m
# CONFIG_SCTP_DBG_OBJCNT is not set
CONFIG_SCTP_DEFAULT_COOKIE_HMAC_MD5=y
# CONFIG_SCTP_DEFAULT_COOKIE_HMAC_SHA1 is not set
# CONFIG_SCTP_DEFAULT_COOKIE_HMAC_NONE is not set
CONFIG_SCTP_COOKIE_HMAC_MD5=y
# CONFIG_SCTP_COOKIE_HMAC_SHA1 is not set
CONFIG_RDS=m
CONFIG_RDS_RDMA=m
CONFIG_RDS_TCP=m
# CONFIG_RDS_DEBUG is not set
# CONFIG_TIPC is not set
CONFIG_ATM=m
CONFIG_ATM_CLIP=m
# CONFIG_ATM_CLIP_NO_ICMP is not set
CONFIG_ATM_LANE=m
# CONFIG_ATM_MPOA is not set
CONFIG_ATM_BR2684=m
# CONFIG_ATM_BR2684_IPFILTER is not set
CONFIG_L2TP=m
CONFIG_L2TP_DEBUGFS=m
CONFIG_L2TP_V3=y
CONFIG_L2TP_IP=m
CONFIG_L2TP_ETH=m
CONFIG_STP=m
CONFIG_GARP=m
CONFIG_BRIDGE=m
CONFIG_BRIDGE_IGMP_SNOOPING=y
# CONFIG_BRIDGE_VLAN_FILTERING is not set
CONFIG_HAVE_NET_DSA=y
CONFIG_NET_DSA=y
CONFIG_NET_DSA_TAG_DSA=y
CONFIG_NET_DSA_TAG_EDSA=y
CONFIG_NET_DSA_TAG_TRAILER=y
CONFIG_VLAN_8021Q=m
CONFIG_VLAN_8021Q_GVRP=y
# CONFIG_VLAN_8021Q_MVRP is not set
# CONFIG_DECNET is not set
CONFIG_LLC=m
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
CONFIG_PHONET=m
CONFIG_IEEE802154=m
# CONFIG_IEEE802154_6LOWPAN is not set
CONFIG_6LOWPAN_IPHC=m
# CONFIG_MAC802154 is not set
CONFIG_NET_SCHED=y
#
# Queueing/Scheduling
#
CONFIG_NET_SCH_CBQ=m
CONFIG_NET_SCH_HTB=m
CONFIG_NET_SCH_HFSC=m
CONFIG_NET_SCH_ATM=m
CONFIG_NET_SCH_PRIO=m
CONFIG_NET_SCH_MULTIQ=m
CONFIG_NET_SCH_RED=m
CONFIG_NET_SCH_SFB=m
CONFIG_NET_SCH_SFQ=m
CONFIG_NET_SCH_TEQL=m
CONFIG_NET_SCH_TBF=m
CONFIG_NET_SCH_GRED=m
CONFIG_NET_SCH_DSMARK=m
CONFIG_NET_SCH_NETEM=m
CONFIG_NET_SCH_DRR=m
CONFIG_NET_SCH_MQPRIO=m
CONFIG_NET_SCH_CHOKE=m
# CONFIG_NET_SCH_QFQ is not set
# CONFIG_NET_SCH_CODEL is not set
# CONFIG_NET_SCH_FQ_CODEL is not set
# CONFIG_NET_SCH_FQ is not set
# CONFIG_NET_SCH_HHF is not set
# CONFIG_NET_SCH_PIE is not set
CONFIG_NET_SCH_INGRESS=m
# CONFIG_NET_SCH_PLUG is not set
#
# Classification
#
CONFIG_NET_CLS=y
CONFIG_NET_CLS_BASIC=m
CONFIG_NET_CLS_TCINDEX=m
CONFIG_NET_CLS_ROUTE4=m
CONFIG_NET_CLS_FW=m
CONFIG_NET_CLS_U32=m
CONFIG_CLS_U32_PERF=y
CONFIG_CLS_U32_MARK=y
CONFIG_NET_CLS_RSVP=m
CONFIG_NET_CLS_RSVP6=m
CONFIG_NET_CLS_FLOW=m
CONFIG_NET_CLS_CGROUP=y
# CONFIG_NET_CLS_BPF is not set
CONFIG_NET_EMATCH=y
CONFIG_NET_EMATCH_STACK=32
CONFIG_NET_EMATCH_CMP=m
CONFIG_NET_EMATCH_NBYTE=m
CONFIG_NET_EMATCH_U32=m
CONFIG_NET_EMATCH_META=m
CONFIG_NET_EMATCH_TEXT=m
# CONFIG_NET_EMATCH_CANID is not set
# CONFIG_NET_EMATCH_IPSET is not set
CONFIG_NET_CLS_ACT=y
CONFIG_NET_ACT_POLICE=m
CONFIG_NET_ACT_GACT=m
CONFIG_GACT_PROB=y
CONFIG_NET_ACT_MIRRED=m
CONFIG_NET_ACT_IPT=m
CONFIG_NET_ACT_NAT=m
CONFIG_NET_ACT_PEDIT=m
CONFIG_NET_ACT_SIMP=m
CONFIG_NET_ACT_SKBEDIT=m
CONFIG_NET_ACT_CSUM=m
CONFIG_NET_CLS_IND=y
CONFIG_NET_SCH_FIFO=y
CONFIG_DCB=y
CONFIG_DNS_RESOLVER=y
CONFIG_BATMAN_ADV=m
CONFIG_BATMAN_ADV_BLA=y
# CONFIG_BATMAN_ADV_DAT is not set
# CONFIG_BATMAN_ADV_NC is not set
# CONFIG_BATMAN_ADV_DEBUG is not set
# CONFIG_OPENVSWITCH is not set
# CONFIG_VSOCKETS is not set
# CONFIG_NETLINK_MMAP is not set
# CONFIG_NETLINK_DIAG is not set
# CONFIG_NET_MPLS_GSO is not set
# CONFIG_HSR is not set
CONFIG_RPS=y
CONFIG_RFS_ACCEL=y
CONFIG_XPS=y
# CONFIG_CGROUP_NET_PRIO is not set
CONFIG_CGROUP_NET_CLASSID=y
CONFIG_NET_RX_BUSY_POLL=y
CONFIG_BQL=y
CONFIG_BPF_JIT=y
CONFIG_NET_FLOW_LIMIT=y
#
# Network testing
#
CONFIG_NET_PKTGEN=m
# CONFIG_NET_TCPPROBE is not set
CONFIG_NET_DROP_MONITOR=y
# CONFIG_HAMRADIO is not set
CONFIG_CAN=m
CONFIG_CAN_RAW=m
CONFIG_CAN_BCM=m
CONFIG_CAN_GW=m
#
# CAN Device Drivers
#
CONFIG_CAN_VCAN=m
CONFIG_CAN_SLCAN=m
CONFIG_CAN_DEV=m
CONFIG_CAN_CALC_BITTIMING=y
# CONFIG_CAN_LEDS is not set
CONFIG_PCH_CAN=m
CONFIG_CAN_SJA1000=m
# CONFIG_CAN_SJA1000_ISA is not set
CONFIG_CAN_SJA1000_PLATFORM=m
# CONFIG_CAN_EMS_PCMCIA is not set
CONFIG_CAN_EMS_PCI=m
# CONFIG_CAN_PEAK_PCMCIA is not set
# CONFIG_CAN_PEAK_PCI is not set
CONFIG_CAN_KVASER_PCI=m
CONFIG_CAN_PLX_PCI=m
CONFIG_CAN_C_CAN=m
CONFIG_CAN_C_CAN_PLATFORM=m
# CONFIG_CAN_C_CAN_PCI is not set
# CONFIG_CAN_CC770 is not set
#
# CAN USB interfaces
#
CONFIG_CAN_EMS_USB=m
CONFIG_CAN_ESD_USB2=m
# CONFIG_CAN_KVASER_USB is not set
# CONFIG_CAN_PEAK_USB is not set
# CONFIG_CAN_8DEV_USB is not set
CONFIG_CAN_SOFTING=m
CONFIG_CAN_SOFTING_CS=m
# CONFIG_CAN_DEBUG_DEVICES is not set
# CONFIG_IRDA is not set
CONFIG_BT=m
CONFIG_BT_RFCOMM=m
CONFIG_BT_RFCOMM_TTY=y
CONFIG_BT_BNEP=m
CONFIG_BT_BNEP_MC_FILTER=y
CONFIG_BT_BNEP_PROTO_FILTER=y
CONFIG_BT_CMTP=m
CONFIG_BT_HIDP=m
#
# Bluetooth device drivers
#
CONFIG_BT_HCIBTUSB=m
CONFIG_BT_HCIBTSDIO=m
CONFIG_BT_HCIUART=m
CONFIG_BT_HCIUART_H4=y
CONFIG_BT_HCIUART_BCSP=y
CONFIG_BT_HCIUART_ATH3K=y
CONFIG_BT_HCIUART_LL=y
# CONFIG_BT_HCIUART_3WIRE is not set
CONFIG_BT_HCIBCM203X=m
CONFIG_BT_HCIBPA10X=m
CONFIG_BT_HCIBFUSB=m
CONFIG_BT_HCIDTL1=m
CONFIG_BT_HCIBT3C=m
CONFIG_BT_HCIBLUECARD=m
CONFIG_BT_HCIBTUART=m
CONFIG_BT_HCIVHCI=m
CONFIG_BT_MRVL=m
CONFIG_BT_MRVL_SDIO=m
CONFIG_BT_ATH3K=m
# CONFIG_AF_RXRPC is not set
CONFIG_FIB_RULES=y
CONFIG_WIRELESS=y
CONFIG_WIRELESS_EXT=y
CONFIG_WEXT_CORE=y
CONFIG_WEXT_PROC=y
CONFIG_WEXT_SPY=y
CONFIG_WEXT_PRIV=y
CONFIG_CFG80211=m
# CONFIG_NL80211_TESTMODE is not set
# CONFIG_CFG80211_DEVELOPER_WARNINGS is not set
# CONFIG_CFG80211_REG_DEBUG is not set
CONFIG_CFG80211_DEFAULT_PS=y
# CONFIG_CFG80211_DEBUGFS is not set
# CONFIG_CFG80211_INTERNAL_REGDB is not set
CONFIG_CFG80211_WEXT=y
CONFIG_LIB80211=m
CONFIG_LIB80211_CRYPT_WEP=m
CONFIG_LIB80211_CRYPT_CCMP=m
CONFIG_LIB80211_CRYPT_TKIP=m
# CONFIG_LIB80211_DEBUG is not set
CONFIG_MAC80211=m
CONFIG_MAC80211_HAS_RC=y
CONFIG_MAC80211_RC_MINSTREL=y
CONFIG_MAC80211_RC_MINSTREL_HT=y
CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT="minstrel_ht"
CONFIG_MAC80211_MESH=y
CONFIG_MAC80211_LEDS=y
# CONFIG_MAC80211_DEBUGFS is not set
# CONFIG_MAC80211_MESSAGE_TRACING is not set
# CONFIG_MAC80211_DEBUG_MENU is not set
CONFIG_WIMAX=m
CONFIG_WIMAX_DEBUG_LEVEL=8
CONFIG_RFKILL=m
CONFIG_RFKILL_LEDS=y
CONFIG_RFKILL_INPUT=y
# CONFIG_RFKILL_REGULATOR is not set
# CONFIG_RFKILL_GPIO is not set
CONFIG_NET_9P=m
CONFIG_NET_9P_VIRTIO=m
CONFIG_NET_9P_RDMA=m
# CONFIG_NET_9P_DEBUG is not set
# CONFIG_CAIF is not set
CONFIG_CEPH_LIB=m
# CONFIG_CEPH_LIB_PRETTYDEBUG is not set
# CONFIG_CEPH_LIB_USE_DNS_RESOLVER is not set
# CONFIG_NFC is not set
CONFIG_HAVE_BPF_JIT=y
#
# Device Drivers
#
#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH=""
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
# CONFIG_FIRMWARE_IN_KERNEL is not set
CONFIG_EXTRA_FIRMWARE=""
CONFIG_FW_LOADER_USER_HELPER=y
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
CONFIG_SYS_HYPERVISOR=y
# CONFIG_GENERIC_CPU_DEVICES is not set
CONFIG_REGMAP=y
CONFIG_REGMAP_I2C=m
CONFIG_DMA_SHARED_BUFFER=y
#
# Bus devices
#
CONFIG_CONNECTOR=y
CONFIG_PROC_EVENTS=y
CONFIG_MTD=y
# CONFIG_MTD_TESTS is not set
CONFIG_MTD_REDBOOT_PARTS=m
CONFIG_MTD_REDBOOT_DIRECTORY_BLOCK=-1
# CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED is not set
# CONFIG_MTD_REDBOOT_PARTS_READONLY is not set
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_AR7_PARTS=m
#
# User Modules And Translation Layers
#
CONFIG_MTD_BLKDEVS=m
CONFIG_MTD_BLOCK=m
CONFIG_MTD_BLOCK_RO=m
CONFIG_FTL=m
CONFIG_NFTL=m
CONFIG_NFTL_RW=y
# CONFIG_INFTL is not set
CONFIG_RFD_FTL=m
CONFIG_SSFDC=m
CONFIG_SM_FTL=m
CONFIG_MTD_OOPS=m
CONFIG_MTD_SWAP=m
#
# RAM/ROM/Flash chip drivers
#
CONFIG_MTD_CFI=m
CONFIG_MTD_JEDECPROBE=m
CONFIG_MTD_GEN_PROBE=m
# CONFIG_MTD_CFI_ADV_OPTIONS is not set
CONFIG_MTD_MAP_BANK_WIDTH_1=y
CONFIG_MTD_MAP_BANK_WIDTH_2=y
CONFIG_MTD_MAP_BANK_WIDTH_4=y
# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
CONFIG_MTD_CFI_I1=y
CONFIG_MTD_CFI_I2=y
# CONFIG_MTD_CFI_I4 is not set
# CONFIG_MTD_CFI_I8 is not set
CONFIG_MTD_CFI_INTELEXT=m
CONFIG_MTD_CFI_AMDSTD=m
CONFIG_MTD_CFI_STAA=m
CONFIG_MTD_CFI_UTIL=m
CONFIG_MTD_RAM=m
CONFIG_MTD_ROM=m
CONFIG_MTD_ABSENT=m
#
# Mapping drivers for chip access
#
# CONFIG_MTD_COMPLEX_MAPPINGS is not set
# CONFIG_MTD_PHYSMAP is not set
CONFIG_MTD_SC520CDP=m
CONFIG_MTD_NETSC520=m
CONFIG_MTD_TS5500=m
# CONFIG_MTD_AMD76XROM is not set
# CONFIG_MTD_ICHXROM is not set
CONFIG_MTD_ESB2ROM=m
CONFIG_MTD_CK804XROM=m
CONFIG_MTD_SCB2_FLASH=m
# CONFIG_MTD_NETtel is not set
# CONFIG_MTD_L440GX is not set
# CONFIG_MTD_INTEL_VR_NOR is not set
# CONFIG_MTD_PLATRAM is not set
#
# Self-contained MTD device drivers
#
# CONFIG_MTD_PMC551 is not set
# CONFIG_MTD_SLRAM is not set
# CONFIG_MTD_PHRAM is not set
CONFIG_MTD_MTDRAM=m
CONFIG_MTDRAM_TOTAL_SIZE=4096
CONFIG_MTDRAM_ERASE_SIZE=128
CONFIG_MTD_BLOCK2MTD=m
#
# Disk-On-Chip Device Drivers
#
# CONFIG_MTD_DOCG3 is not set
CONFIG_MTD_NAND_ECC=m
CONFIG_MTD_NAND_ECC_SMC=y
CONFIG_MTD_NAND=m
CONFIG_MTD_NAND_BCH=m
CONFIG_MTD_NAND_ECC_BCH=y
# CONFIG_MTD_SM_COMMON is not set
# CONFIG_MTD_NAND_DENALI is not set
# CONFIG_MTD_NAND_GPIO is not set
CONFIG_MTD_NAND_IDS=m
# CONFIG_MTD_NAND_RICOH is not set
CONFIG_MTD_NAND_DISKONCHIP=m
# CONFIG_MTD_NAND_DISKONCHIP_PROBE_ADVANCED is not set
CONFIG_MTD_NAND_DISKONCHIP_PROBE_ADDRESS=0
# CONFIG_MTD_NAND_DISKONCHIP_BBTWRITE is not set
# CONFIG_MTD_NAND_DOCG4 is not set
# CONFIG_MTD_NAND_CAFE is not set
CONFIG_MTD_NAND_NANDSIM=m
# CONFIG_MTD_NAND_PLATFORM is not set
# CONFIG_MTD_ONENAND is not set
#
# LPDDR flash memory drivers
#
CONFIG_MTD_LPDDR=m
CONFIG_MTD_QINFO_PROBE=m
CONFIG_MTD_UBI=m
CONFIG_MTD_UBI_WL_THRESHOLD=4096
CONFIG_MTD_UBI_BEB_LIMIT=20
# CONFIG_MTD_UBI_FASTMAP is not set
# CONFIG_MTD_UBI_GLUEBI is not set
CONFIG_PARPORT=m
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
CONFIG_PARPORT_PC=m
CONFIG_PARPORT_SERIAL=m
# CONFIG_PARPORT_PC_FIFO is not set
# CONFIG_PARPORT_PC_SUPERIO is not set
CONFIG_PARPORT_PC_PCMCIA=m
# CONFIG_PARPORT_GSC is not set
# CONFIG_PARPORT_AX88796 is not set
CONFIG_PARPORT_1284=y
CONFIG_PARPORT_NOT_PC=y
CONFIG_PNP=y
# CONFIG_PNP_DEBUG_MESSAGES is not set
#
# Protocols
#
CONFIG_PNPACPI=y
CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_NULL_BLK is not set
CONFIG_BLK_DEV_FD=m
# CONFIG_PARIDE is not set
# CONFIG_BLK_DEV_PCIESSD_MTIP32XX is not set
CONFIG_BLK_CPQ_CISS_DA=m
CONFIG_CISS_SCSI_TAPE=y
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_LOOP_MIN_COUNT=8
CONFIG_BLK_DEV_CRYPTOLOOP=m
CONFIG_BLK_DEV_DRBD=m
CONFIG_DRBD_FAULT_INJECTION=y
CONFIG_BLK_DEV_NBD=m
# CONFIG_BLK_DEV_NVME is not set
# CONFIG_BLK_DEV_SKD is not set
CONFIG_BLK_DEV_OSD=m
CONFIG_BLK_DEV_SX8=m
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=16384
# CONFIG_BLK_DEV_XIP is not set
CONFIG_CDROM_PKTCDVD=m
CONFIG_CDROM_PKTCDVD_BUFFERS=8
# CONFIG_CDROM_PKTCDVD_WCACHE is not set
CONFIG_ATA_OVER_ETH=m
CONFIG_XEN_BLKDEV_FRONTEND=m
CONFIG_XEN_BLKDEV_BACKEND=m
CONFIG_VIRTIO_BLK=m
# CONFIG_BLK_DEV_HD is not set
CONFIG_BLK_DEV_RBD=m
# CONFIG_BLK_DEV_RSXX is not set
#
# Misc devices
#
# CONFIG_SENSORS_LIS3LV02D is not set
CONFIG_AD525X_DPOT=m
CONFIG_AD525X_DPOT_I2C=m
# CONFIG_DUMMY_IRQ is not set
# CONFIG_IBM_ASM is not set
# CONFIG_PHANTOM is not set
CONFIG_SGI_IOC4=m
CONFIG_TIFM_CORE=m
CONFIG_TIFM_7XX1=m
CONFIG_ICS932S401=m
# CONFIG_ATMEL_SSC is not set
CONFIG_ENCLOSURE_SERVICES=m
CONFIG_HP_ILO=m
CONFIG_APDS9802ALS=m
CONFIG_ISL29003=m
CONFIG_ISL29020=m
CONFIG_SENSORS_TSL2550=m
CONFIG_SENSORS_BH1780=m
CONFIG_SENSORS_BH1770=m
CONFIG_SENSORS_APDS990X=m
CONFIG_HMC6352=m
# CONFIG_DS1682 is not set
# CONFIG_VMWARE_BALLOON is not set
# CONFIG_BMP085_I2C is not set
# CONFIG_PCH_PHUB is not set
# CONFIG_USB_SWITCH_FSA9480 is not set
# CONFIG_SRAM is not set
# CONFIG_C2PORT is not set
#
# EEPROM support
#
CONFIG_EEPROM_AT24=m
CONFIG_EEPROM_LEGACY=m
CONFIG_EEPROM_MAX6875=m
CONFIG_EEPROM_93CX6=m
CONFIG_CB710_CORE=m
# CONFIG_CB710_DEBUG is not set
CONFIG_CB710_DEBUG_ASSUMPTIONS=y
#
# Texas Instruments shared transport line discipline
#
# CONFIG_TI_ST is not set
# CONFIG_SENSORS_LIS3_I2C is not set
#
# Altera FPGA firmware download module
#
# CONFIG_ALTERA_STAPL is not set
# CONFIG_INTEL_MEI is not set
# CONFIG_INTEL_MEI_ME is not set
# CONFIG_VMWARE_VMCI is not set
#
# Intel MIC Host Driver
#
# CONFIG_INTEL_MIC_HOST is not set
#
# Intel MIC Card Driver
#
# CONFIG_INTEL_MIC_CARD is not set
# CONFIG_GENWQE is not set
CONFIG_HAVE_IDE=y
# CONFIG_IDE is not set
#
# SCSI device support
#
CONFIG_SCSI_MOD=y
CONFIG_RAID_ATTRS=m
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
CONFIG_SCSI_TGT=m
CONFIG_SCSI_NETLINK=y
CONFIG_SCSI_PROC_FS=y
#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=m
CONFIG_CHR_DEV_ST=m
CONFIG_CHR_DEV_OSST=m
CONFIG_BLK_DEV_SR=m
CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_CHR_DEV_SG=m
CONFIG_CHR_DEV_SCH=m
CONFIG_SCSI_ENCLOSURE=m
CONFIG_SCSI_MULTI_LUN=y
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
CONFIG_SCSI_SCAN_ASYNC=y
#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=m
CONFIG_SCSI_FC_ATTRS=m
CONFIG_SCSI_FC_TGT_ATTRS=y
CONFIG_SCSI_ISCSI_ATTRS=m
CONFIG_SCSI_SAS_ATTRS=m
CONFIG_SCSI_SAS_LIBSAS=m
CONFIG_SCSI_SAS_ATA=y
CONFIG_SCSI_SAS_HOST_SMP=y
CONFIG_SCSI_SRP_ATTRS=m
CONFIG_SCSI_SRP_TGT_ATTRS=y
CONFIG_SCSI_LOWLEVEL=y
CONFIG_ISCSI_TCP=m
CONFIG_ISCSI_BOOT_SYSFS=m
CONFIG_SCSI_CXGB3_ISCSI=m
CONFIG_SCSI_CXGB4_ISCSI=m
CONFIG_SCSI_BNX2_ISCSI=m
CONFIG_SCSI_BNX2X_FCOE=m
CONFIG_BE2ISCSI=m
CONFIG_BLK_DEV_3W_XXXX_RAID=m
CONFIG_SCSI_HPSA=m
CONFIG_SCSI_3W_9XXX=m
CONFIG_SCSI_3W_SAS=m
# CONFIG_SCSI_ACARD is not set
CONFIG_SCSI_AACRAID=m
CONFIG_SCSI_AIC7XXX=m
CONFIG_AIC7XXX_CMDS_PER_DEVICE=4
CONFIG_AIC7XXX_RESET_DELAY_MS=15000
# CONFIG_AIC7XXX_DEBUG_ENABLE is not set
CONFIG_AIC7XXX_DEBUG_MASK=0
# CONFIG_AIC7XXX_REG_PRETTY_PRINT is not set
CONFIG_SCSI_AIC79XX=m
CONFIG_AIC79XX_CMDS_PER_DEVICE=4
CONFIG_AIC79XX_RESET_DELAY_MS=15000
# CONFIG_AIC79XX_DEBUG_ENABLE is not set
CONFIG_AIC79XX_DEBUG_MASK=0
# CONFIG_AIC79XX_REG_PRETTY_PRINT is not set
CONFIG_SCSI_AIC94XX=m
# CONFIG_AIC94XX_DEBUG is not set
CONFIG_SCSI_MVSAS=m
# CONFIG_SCSI_MVSAS_DEBUG is not set
# CONFIG_SCSI_MVSAS_TASKLET is not set
# CONFIG_SCSI_MVUMI is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
CONFIG_SCSI_ARCMSR=m
# CONFIG_SCSI_ESAS2R is not set
CONFIG_MEGARAID_NEWGEN=y
CONFIG_MEGARAID_MM=m
CONFIG_MEGARAID_MAILBOX=m
# CONFIG_MEGARAID_LEGACY is not set
CONFIG_MEGARAID_SAS=m
CONFIG_SCSI_MPT2SAS=m
CONFIG_SCSI_MPT2SAS_MAX_SGE=128
CONFIG_SCSI_MPT2SAS_LOGGING=y
# CONFIG_SCSI_MPT3SAS is not set
# CONFIG_SCSI_UFSHCD is not set
CONFIG_SCSI_HPTIOP=m
# CONFIG_SCSI_BUSLOGIC is not set
CONFIG_VMWARE_PVSCSI=m
CONFIG_LIBFC=m
CONFIG_LIBFCOE=m
CONFIG_FCOE=m
CONFIG_FCOE_FNIC=m
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_EATA is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GDTH is not set
CONFIG_SCSI_ISCI=m
CONFIG_SCSI_IPS=m
CONFIG_SCSI_INITIO=m
# CONFIG_SCSI_INIA100 is not set
CONFIG_SCSI_PPA=m
CONFIG_SCSI_IMM=m
# CONFIG_SCSI_IZIP_EPP16 is not set
# CONFIG_SCSI_IZIP_SLOW_CTR is not set
CONFIG_SCSI_STEX=m
CONFIG_SCSI_SYM53C8XX_2=m
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
CONFIG_SCSI_SYM53C8XX_MMIO=y
# CONFIG_SCSI_IPR is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
CONFIG_SCSI_QLA_FC=m
# CONFIG_TCM_QLA2XXX is not set
CONFIG_SCSI_QLA_ISCSI=m
CONFIG_SCSI_LPFC=m
# CONFIG_SCSI_LPFC_DEBUG_FS is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_DC390T is not set
CONFIG_SCSI_DEBUG=m
CONFIG_SCSI_PMCRAID=m
# CONFIG_SCSI_PM8001 is not set
CONFIG_SCSI_SRP=m
CONFIG_SCSI_BFA_FC=m
# CONFIG_SCSI_VIRTIO is not set
# CONFIG_SCSI_CHELSIO_FCOE is not set
CONFIG_SCSI_LOWLEVEL_PCMCIA=y
# CONFIG_PCMCIA_AHA152X is not set
# CONFIG_PCMCIA_FDOMAIN is not set
# CONFIG_PCMCIA_QLOGIC is not set
# CONFIG_PCMCIA_SYM53C500 is not set
CONFIG_SCSI_DH=y
CONFIG_SCSI_DH_RDAC=m
CONFIG_SCSI_DH_HP_SW=m
CONFIG_SCSI_DH_EMC=m
CONFIG_SCSI_DH_ALUA=m
CONFIG_SCSI_OSD_INITIATOR=m
CONFIG_SCSI_OSD_ULD=m
CONFIG_SCSI_OSD_DPRINT_SENSE=1
# CONFIG_SCSI_OSD_DEBUG is not set
CONFIG_ATA=y
# CONFIG_ATA_NONSTANDARD is not set
CONFIG_ATA_VERBOSE_ERROR=y
CONFIG_ATA_ACPI=y
# CONFIG_SATA_ZPODD is not set
CONFIG_SATA_PMP=y
#
# Controllers with non-SFF native interface
#
CONFIG_SATA_AHCI=m
CONFIG_SATA_AHCI_PLATFORM=m
CONFIG_SATA_INIC162X=m
CONFIG_SATA_ACARD_AHCI=m
CONFIG_SATA_SIL24=m
CONFIG_ATA_SFF=y
#
# SFF controllers with custom DMA interface
#
CONFIG_PDC_ADMA=m
CONFIG_SATA_QSTOR=m
CONFIG_SATA_SX4=m
CONFIG_ATA_BMDMA=y
#
# SATA SFF controllers with BMDMA
#
CONFIG_ATA_PIIX=m
# CONFIG_SATA_HIGHBANK is not set
CONFIG_SATA_MV=m
CONFIG_SATA_NV=m
CONFIG_SATA_PROMISE=m
# CONFIG_SATA_RCAR is not set
CONFIG_SATA_SIL=m
CONFIG_SATA_SIS=m
CONFIG_SATA_SVW=m
CONFIG_SATA_ULI=m
CONFIG_SATA_VIA=m
CONFIG_SATA_VITESSE=m
#
# PATA SFF controllers with BMDMA
#
CONFIG_PATA_ALI=m
CONFIG_PATA_AMD=m
CONFIG_PATA_ARASAN_CF=m
CONFIG_PATA_ARTOP=m
CONFIG_PATA_ATIIXP=m
CONFIG_PATA_ATP867X=m
CONFIG_PATA_CMD64X=m
# CONFIG_PATA_CS5520 is not set
# CONFIG_PATA_CS5530 is not set
CONFIG_PATA_CS5536=m
# CONFIG_PATA_CYPRESS is not set
# CONFIG_PATA_EFAR is not set
CONFIG_PATA_HPT366=m
CONFIG_PATA_HPT37X=m
CONFIG_PATA_HPT3X2N=m
CONFIG_PATA_HPT3X3=m
# CONFIG_PATA_HPT3X3_DMA is not set
CONFIG_PATA_IT8213=m
CONFIG_PATA_IT821X=m
CONFIG_PATA_JMICRON=m
CONFIG_PATA_MARVELL=m
CONFIG_PATA_NETCELL=m
CONFIG_PATA_NINJA32=m
# CONFIG_PATA_NS87415 is not set
CONFIG_PATA_OLDPIIX=m
# CONFIG_PATA_OPTIDMA is not set
CONFIG_PATA_PDC2027X=m
CONFIG_PATA_PDC_OLD=m
# CONFIG_PATA_RADISYS is not set
CONFIG_PATA_RDC=m
# CONFIG_PATA_SC1200 is not set
CONFIG_PATA_SCH=m
CONFIG_PATA_SERVERWORKS=m
CONFIG_PATA_SIL680=m
CONFIG_PATA_SIS=m
CONFIG_PATA_TOSHIBA=m
# CONFIG_PATA_TRIFLEX is not set
CONFIG_PATA_VIA=m
# CONFIG_PATA_WINBOND is not set
#
# PIO-only SFF controllers
#
# CONFIG_PATA_CMD640_PCI is not set
# CONFIG_PATA_MPIIX is not set
# CONFIG_PATA_NS87410 is not set
# CONFIG_PATA_OPTI is not set
CONFIG_PATA_PCMCIA=m
# CONFIG_PATA_RZ1000 is not set
#
# Generic fallback / legacy drivers
#
CONFIG_PATA_ACPI=m
CONFIG_ATA_GENERIC=m
# CONFIG_PATA_LEGACY is not set
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
CONFIG_MD_AUTODETECT=y
CONFIG_MD_LINEAR=m
CONFIG_MD_RAID0=m
CONFIG_MD_RAID1=m
CONFIG_MD_RAID10=m
CONFIG_MD_RAID456=m
# CONFIG_MD_MULTIPATH is not set
CONFIG_MD_FAULTY=m
# CONFIG_BCACHE is not set
CONFIG_BLK_DEV_DM_BUILTIN=y
CONFIG_BLK_DEV_DM=m
CONFIG_DM_DEBUG=y
CONFIG_DM_BUFIO=m
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
# CONFIG_DM_THIN_PROVISIONING is not set
# CONFIG_DM_CACHE is not set
CONFIG_DM_MIRROR=m
CONFIG_DM_LOG_USERSPACE=m
CONFIG_DM_RAID=m
CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
CONFIG_DM_MULTIPATH_QL=m
CONFIG_DM_MULTIPATH_ST=m
CONFIG_DM_DELAY=m
CONFIG_DM_UEVENT=y
CONFIG_DM_FLAKEY=m
# CONFIG_DM_VERITY is not set
# CONFIG_DM_SWITCH is not set
CONFIG_TARGET_CORE=m
CONFIG_TCM_IBLOCK=m
CONFIG_TCM_FILEIO=m
CONFIG_TCM_PSCSI=m
CONFIG_LOOPBACK_TARGET=m
# CONFIG_TCM_FC is not set
# CONFIG_ISCSI_TARGET is not set
# CONFIG_SBP_TARGET is not set
CONFIG_FUSION=y
CONFIG_FUSION_SPI=m
CONFIG_FUSION_FC=m
CONFIG_FUSION_SAS=m
CONFIG_FUSION_MAX_SGE=128
CONFIG_FUSION_CTL=m
CONFIG_FUSION_LAN=m
CONFIG_FUSION_LOGGING=y
#
# IEEE 1394 (FireWire) support
#
CONFIG_FIREWIRE=m
CONFIG_FIREWIRE_OHCI=m
CONFIG_FIREWIRE_SBP2=m
CONFIG_FIREWIRE_NET=m
# CONFIG_FIREWIRE_NOSY is not set
# CONFIG_I2O is not set
CONFIG_MACINTOSH_DRIVERS=y
CONFIG_MAC_EMUMOUSEBTN=y
CONFIG_NETDEVICES=y
CONFIG_MII=m
CONFIG_NET_CORE=y
CONFIG_BONDING=m
CONFIG_DUMMY=m
# CONFIG_EQUALIZER is not set
CONFIG_NET_FC=y
CONFIG_IFB=m
# CONFIG_NET_TEAM is not set
CONFIG_MACVLAN=m
CONFIG_MACVTAP=m
# CONFIG_VXLAN is not set
CONFIG_NETCONSOLE=m
CONFIG_NETCONSOLE_DYNAMIC=y
CONFIG_NETPOLL=y
CONFIG_NETPOLL_TRAP=y
CONFIG_NET_POLL_CONTROLLER=y
# CONFIG_RIONET is not set
CONFIG_TUN=m
CONFIG_VETH=m
CONFIG_VIRTIO_NET=m
# CONFIG_NLMON is not set
CONFIG_SUNGEM_PHY=m
# CONFIG_ARCNET is not set
CONFIG_ATM_DRIVERS=y
# CONFIG_ATM_DUMMY is not set
CONFIG_ATM_TCP=m
# CONFIG_ATM_LANAI is not set
# CONFIG_ATM_ENI is not set
# CONFIG_ATM_FIRESTREAM is not set
# CONFIG_ATM_ZATM is not set
# CONFIG_ATM_NICSTAR is not set
# CONFIG_ATM_IDT77252 is not set
# CONFIG_ATM_AMBASSADOR is not set
# CONFIG_ATM_HORIZON is not set
# CONFIG_ATM_IA is not set
# CONFIG_ATM_FORE200E is not set
# CONFIG_ATM_HE is not set
# CONFIG_ATM_SOLOS is not set
#
# CAIF transport drivers
#
CONFIG_VHOST_NET=m
# CONFIG_VHOST_SCSI is not set
CONFIG_VHOST_RING=m
CONFIG_VHOST=m
#
# Distributed Switch Architecture drivers
#
CONFIG_NET_DSA_MV88E6XXX=y
CONFIG_NET_DSA_MV88E6060=y
CONFIG_NET_DSA_MV88E6XXX_NEED_PPU=y
CONFIG_NET_DSA_MV88E6131=y
CONFIG_NET_DSA_MV88E6123_61_65=y
CONFIG_ETHERNET=y
CONFIG_MDIO=m
CONFIG_NET_VENDOR_3COM=y
CONFIG_PCMCIA_3C574=m
CONFIG_PCMCIA_3C589=m
CONFIG_VORTEX=m
CONFIG_TYPHOON=m
CONFIG_NET_VENDOR_ADAPTEC=y
CONFIG_ADAPTEC_STARFIRE=m
CONFIG_NET_VENDOR_ALTEON=y
CONFIG_ACENIC=m
# CONFIG_ACENIC_OMIT_TIGON_I is not set
CONFIG_NET_VENDOR_AMD=y
CONFIG_AMD8111_ETH=m
CONFIG_PCNET32=m
CONFIG_PCMCIA_NMCLAN=m
CONFIG_NET_VENDOR_ARC=y
CONFIG_NET_VENDOR_ATHEROS=y
CONFIG_ATL2=m
CONFIG_ATL1=m
CONFIG_ATL1E=m
CONFIG_ATL1C=m
# CONFIG_ALX is not set
CONFIG_NET_CADENCE=y
# CONFIG_ARM_AT91_ETHER is not set
# CONFIG_MACB is not set
CONFIG_NET_VENDOR_BROADCOM=y
CONFIG_B44=m
CONFIG_B44_PCI_AUTOSELECT=y
CONFIG_B44_PCICORE_AUTOSELECT=y
CONFIG_B44_PCI=y
CONFIG_BNX2=m
CONFIG_CNIC=m
CONFIG_TIGON3=m
CONFIG_BNX2X=m
CONFIG_BNX2X_SRIOV=y
CONFIG_NET_VENDOR_BROCADE=y
CONFIG_BNA=m
# CONFIG_NET_CALXEDA_XGMAC is not set
CONFIG_NET_VENDOR_CHELSIO=y
CONFIG_CHELSIO_T1=m
CONFIG_CHELSIO_T1_1G=y
CONFIG_CHELSIO_T3=m
CONFIG_CHELSIO_T4=m
# CONFIG_CHELSIO_T4VF is not set
CONFIG_NET_VENDOR_CISCO=y
CONFIG_ENIC=m
CONFIG_DNET=m
CONFIG_NET_VENDOR_DEC=y
CONFIG_NET_TULIP=y
CONFIG_DE2104X=m
CONFIG_DE2104X_DSL=0
CONFIG_TULIP=m
# CONFIG_TULIP_MWI is not set
CONFIG_TULIP_MMIO=y
# CONFIG_TULIP_NAPI is not set
CONFIG_DE4X5=m
CONFIG_WINBOND_840=m
CONFIG_DM9102=m
CONFIG_ULI526X=m
CONFIG_PCMCIA_XIRCOM=m
CONFIG_NET_VENDOR_DLINK=y
CONFIG_DL2K=m
# CONFIG_SUNDANCE is not set
CONFIG_NET_VENDOR_EMULEX=y
CONFIG_BE2NET=m
CONFIG_NET_VENDOR_EXAR=y
CONFIG_S2IO=m
CONFIG_VXGE=m
# CONFIG_VXGE_DEBUG_TRACE_ALL is not set
CONFIG_NET_VENDOR_FUJITSU=y
CONFIG_PCMCIA_FMVJ18X=m
CONFIG_NET_VENDOR_HP=y
# CONFIG_HP100 is not set
CONFIG_NET_VENDOR_INTEL=y
CONFIG_E100=m
CONFIG_E1000=m
CONFIG_E1000E=m
CONFIG_IGB=m
CONFIG_IGB_HWMON=y
CONFIG_IGB_DCA=y
CONFIG_IGBVF=m
CONFIG_IXGB=m
CONFIG_IXGBE=m
CONFIG_IXGBE_HWMON=y
CONFIG_IXGBE_DCA=y
CONFIG_IXGBE_DCB=y
CONFIG_IXGBEVF=m
# CONFIG_I40E is not set
# CONFIG_I40EVF is not set
CONFIG_NET_VENDOR_I825XX=y
CONFIG_IP1000=m
CONFIG_JME=m
CONFIG_NET_VENDOR_MARVELL=y
# CONFIG_MVMDIO is not set
CONFIG_SKGE=m
# CONFIG_SKGE_DEBUG is not set
# CONFIG_SKGE_GENESIS is not set
CONFIG_SKY2=m
# CONFIG_SKY2_DEBUG is not set
CONFIG_NET_VENDOR_MELLANOX=y
CONFIG_MLX4_EN=m
CONFIG_MLX4_EN_DCB=y
CONFIG_MLX4_CORE=m
CONFIG_MLX4_DEBUG=y
# CONFIG_MLX5_CORE is not set
CONFIG_NET_VENDOR_MICREL=y
# CONFIG_KS8842 is not set
# CONFIG_KS8851_MLL is not set
# CONFIG_KSZ884X_PCI is not set
CONFIG_NET_VENDOR_MYRI=y
CONFIG_MYRI10GE=m
CONFIG_MYRI10GE_DCA=y
CONFIG_FEALNX=m
CONFIG_NET_VENDOR_NATSEMI=y
CONFIG_NATSEMI=m
CONFIG_NS83820=m
CONFIG_NET_VENDOR_8390=y
CONFIG_PCMCIA_AXNET=m
CONFIG_NE2K_PCI=m
CONFIG_PCMCIA_PCNET=m
CONFIG_NET_VENDOR_NVIDIA=y
CONFIG_FORCEDETH=m
CONFIG_NET_VENDOR_OKI=y
CONFIG_PCH_GBE=m
CONFIG_ETHOC=m
CONFIG_NET_PACKET_ENGINE=y
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
CONFIG_NET_VENDOR_QLOGIC=y
CONFIG_QLA3XXX=m
CONFIG_QLCNIC=m
CONFIG_QLCNIC_SRIOV=y
CONFIG_QLCNIC_DCB=y
CONFIG_QLGE=m
CONFIG_NETXEN_NIC=m
CONFIG_NET_VENDOR_REALTEK=y
# CONFIG_ATP is not set
CONFIG_8139CP=m
CONFIG_8139TOO=m
# CONFIG_8139TOO_PIO is not set
# CONFIG_8139TOO_TUNE_TWISTER is not set
CONFIG_8139TOO_8129=y
# CONFIG_8139_OLD_RX_RESET is not set
CONFIG_R8169=m
# CONFIG_SH_ETH is not set
CONFIG_NET_VENDOR_RDC=y
CONFIG_R6040=m
CONFIG_NET_VENDOR_SEEQ=y
CONFIG_NET_VENDOR_SILAN=y
CONFIG_SC92031=m
CONFIG_NET_VENDOR_SIS=y
CONFIG_SIS900=m
CONFIG_SIS190=m
CONFIG_SFC=m
CONFIG_SFC_MTD=y
CONFIG_SFC_MCDI_MON=y
CONFIG_SFC_SRIOV=y
CONFIG_NET_VENDOR_SMSC=y
CONFIG_PCMCIA_SMC91C92=m
CONFIG_EPIC100=m
# CONFIG_SMSC911X is not set
CONFIG_SMSC9420=m
CONFIG_NET_VENDOR_STMICRO=y
CONFIG_STMMAC_ETH=m
CONFIG_STMMAC_PLATFORM=y
# CONFIG_STMMAC_PCI is not set
# CONFIG_STMMAC_DEBUG_FS is not set
CONFIG_STMMAC_DA=y
CONFIG_NET_VENDOR_SUN=y
CONFIG_HAPPYMEAL=m
CONFIG_SUNGEM=m
CONFIG_CASSINI=m
CONFIG_NIU=m
CONFIG_NET_VENDOR_TEHUTI=y
CONFIG_TEHUTI=m
CONFIG_NET_VENDOR_TI=y
CONFIG_TLAN=m
CONFIG_NET_VENDOR_VIA=y
CONFIG_VIA_RHINE=m
CONFIG_VIA_RHINE_MMIO=y
CONFIG_VIA_VELOCITY=m
CONFIG_NET_VENDOR_WIZNET=y
# CONFIG_WIZNET_W5100 is not set
# CONFIG_WIZNET_W5300 is not set
CONFIG_NET_VENDOR_XIRCOM=y
CONFIG_PCMCIA_XIRC2PS=m
CONFIG_FDDI=y
# CONFIG_DEFXX is not set
# CONFIG_SKFP is not set
# CONFIG_HIPPI is not set
# CONFIG_NET_SB1000 is not set
CONFIG_PHYLIB=y
#
# MII PHY device drivers
#
# CONFIG_AT803X_PHY is not set
# CONFIG_AMD_PHY is not set
CONFIG_MARVELL_PHY=m
CONFIG_DAVICOM_PHY=m
CONFIG_QSEMI_PHY=m
CONFIG_LXT_PHY=m
CONFIG_CICADA_PHY=m
CONFIG_VITESSE_PHY=m
CONFIG_SMSC_PHY=m
CONFIG_BROADCOM_PHY=m
# CONFIG_BCM87XX_PHY is not set
CONFIG_ICPLUS_PHY=m
CONFIG_REALTEK_PHY=m
CONFIG_NATIONAL_PHY=m
CONFIG_STE10XP=m
CONFIG_LSI_ET1011C_PHY=m
CONFIG_MICREL_PHY=m
CONFIG_FIXED_PHY=y
CONFIG_MDIO_BITBANG=m
# CONFIG_MDIO_GPIO is not set
# CONFIG_PLIP is not set
CONFIG_PPP=m
# CONFIG_PPP_BSDCOMP is not set
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_FILTER=y
CONFIG_PPP_MPPE=m
CONFIG_PPP_MULTILINK=y
CONFIG_PPPOATM=m
CONFIG_PPPOE=m
CONFIG_PPTP=m
CONFIG_PPPOL2TP=m
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
CONFIG_SLIP=m
CONFIG_SLHC=m
CONFIG_SLIP_COMPRESSED=y
CONFIG_SLIP_SMART=y
# CONFIG_SLIP_MODE_SLIP6 is not set
#
# USB Network Adapters
#
CONFIG_USB_CATC=m
CONFIG_USB_KAWETH=m
CONFIG_USB_PEGASUS=m
CONFIG_USB_RTL8150=m
# CONFIG_USB_RTL8152 is not set
CONFIG_USB_USBNET=m
CONFIG_USB_NET_AX8817X=m
CONFIG_USB_NET_AX88179_178A=m
CONFIG_USB_NET_CDCETHER=m
CONFIG_USB_NET_CDC_EEM=m
CONFIG_USB_NET_CDC_NCM=m
# CONFIG_USB_NET_HUAWEI_CDC_NCM is not set
# CONFIG_USB_NET_CDC_MBIM is not set
CONFIG_USB_NET_DM9601=m
# CONFIG_USB_NET_SR9700 is not set
# CONFIG_USB_NET_SR9800 is not set
# CONFIG_USB_NET_SMSC75XX is not set
CONFIG_USB_NET_SMSC95XX=m
CONFIG_USB_NET_GL620A=m
CONFIG_USB_NET_NET1080=m
CONFIG_USB_NET_PLUSB=m
CONFIG_USB_NET_MCS7830=m
CONFIG_USB_NET_RNDIS_HOST=m
CONFIG_USB_NET_CDC_SUBSET=m
CONFIG_USB_ALI_M5632=y
CONFIG_USB_AN2720=y
CONFIG_USB_BELKIN=y
CONFIG_USB_ARMLINUX=y
CONFIG_USB_EPSON2888=y
CONFIG_USB_KC2190=y
CONFIG_USB_NET_ZAURUS=m
CONFIG_USB_NET_CX82310_ETH=m
CONFIG_USB_NET_KALMIA=m
# CONFIG_USB_NET_QMI_WWAN is not set
CONFIG_USB_HSO=m
CONFIG_USB_NET_INT51X1=m
CONFIG_USB_CDC_PHONET=m
CONFIG_USB_IPHETH=m
CONFIG_USB_SIERRA_NET=m
# CONFIG_USB_VL600 is not set
CONFIG_WLAN=y
# CONFIG_PCMCIA_RAYCS is not set
CONFIG_LIBERTAS_THINFIRM=m
# CONFIG_LIBERTAS_THINFIRM_DEBUG is not set
CONFIG_LIBERTAS_THINFIRM_USB=m
CONFIG_AIRO=m
CONFIG_ATMEL=m
CONFIG_PCI_ATMEL=m
CONFIG_PCMCIA_ATMEL=m
CONFIG_AT76C50X_USB=m
CONFIG_AIRO_CS=m
CONFIG_PCMCIA_WL3501=m
# CONFIG_PRISM54 is not set
CONFIG_USB_ZD1201=m
CONFIG_USB_NET_RNDIS_WLAN=m
CONFIG_RTL8180=m
CONFIG_RTL8187=m
CONFIG_RTL8187_LEDS=y
CONFIG_ADM8211=m
CONFIG_MAC80211_HWSIM=m
CONFIG_MWL8K=m
# CONFIG_ATH_CARDS is not set
CONFIG_B43=m
CONFIG_B43_SSB=y
CONFIG_B43_PCI_AUTOSELECT=y
CONFIG_B43_PCICORE_AUTOSELECT=y
CONFIG_B43_PCMCIA=y
CONFIG_B43_SDIO=y
CONFIG_B43_PIO=y
# CONFIG_B43_PHY_N is not set
CONFIG_B43_PHY_LP=y
CONFIG_B43_LEDS=y
CONFIG_B43_HWRNG=y
# CONFIG_B43_DEBUG is not set
CONFIG_B43LEGACY=m
CONFIG_B43LEGACY_PCI_AUTOSELECT=y
CONFIG_B43LEGACY_PCICORE_AUTOSELECT=y
CONFIG_B43LEGACY_LEDS=y
CONFIG_B43LEGACY_HWRNG=y
# CONFIG_B43LEGACY_DEBUG is not set
CONFIG_B43LEGACY_DMA=y
CONFIG_B43LEGACY_PIO=y
CONFIG_B43LEGACY_DMA_AND_PIO_MODE=y
# CONFIG_B43LEGACY_DMA_MODE is not set
# CONFIG_B43LEGACY_PIO_MODE is not set
# CONFIG_BRCMSMAC is not set
# CONFIG_BRCMFMAC is not set
CONFIG_HOSTAP=m
CONFIG_HOSTAP_FIRMWARE=y
CONFIG_HOSTAP_FIRMWARE_NVRAM=y
CONFIG_HOSTAP_PLX=m
CONFIG_HOSTAP_PCI=m
CONFIG_HOSTAP_CS=m
CONFIG_IPW2100=m
CONFIG_IPW2100_MONITOR=y
# CONFIG_IPW2100_DEBUG is not set
CONFIG_IPW2200=m
CONFIG_IPW2200_MONITOR=y
CONFIG_IPW2200_RADIOTAP=y
CONFIG_IPW2200_PROMISCUOUS=y
CONFIG_IPW2200_QOS=y
# CONFIG_IPW2200_DEBUG is not set
CONFIG_LIBIPW=m
# CONFIG_LIBIPW_DEBUG is not set
# CONFIG_IWLWIFI is not set
CONFIG_IWLEGACY=m
CONFIG_IWL4965=m
CONFIG_IWL3945=m
#
# iwl3945 / iwl4965 Debugging Options
#
# CONFIG_IWLEGACY_DEBUG is not set
CONFIG_LIBERTAS=m
CONFIG_LIBERTAS_USB=m
CONFIG_LIBERTAS_CS=m
CONFIG_LIBERTAS_SDIO=m
CONFIG_LIBERTAS_DEBUG=y
# CONFIG_LIBERTAS_MESH is not set
CONFIG_HERMES=m
# CONFIG_HERMES_PRISM is not set
CONFIG_HERMES_CACHE_FW_ON_INIT=y
CONFIG_PLX_HERMES=m
CONFIG_TMD_HERMES=m
CONFIG_NORTEL_HERMES=m
CONFIG_PCMCIA_HERMES=m
CONFIG_PCMCIA_SPECTRUM=m
# CONFIG_ORINOCO_USB is not set
CONFIG_P54_COMMON=m
CONFIG_P54_USB=m
CONFIG_P54_PCI=m
CONFIG_P54_LEDS=y
CONFIG_RT2X00=m
CONFIG_RT2400PCI=m
CONFIG_RT2500PCI=m
CONFIG_RT61PCI=m
# CONFIG_RT2800PCI is not set
CONFIG_RT2500USB=m
CONFIG_RT73USB=m
# CONFIG_RT2800USB is not set
CONFIG_RT2X00_LIB_MMIO=m
CONFIG_RT2X00_LIB_PCI=m
CONFIG_RT2X00_LIB_USB=m
CONFIG_RT2X00_LIB=m
CONFIG_RT2X00_LIB_FIRMWARE=y
CONFIG_RT2X00_LIB_CRYPTO=y
CONFIG_RT2X00_LIB_LEDS=y
# CONFIG_RT2X00_DEBUG is not set
CONFIG_RTL_CARDS=m
# CONFIG_RTL8192CE is not set
CONFIG_RTL8192SE=m
# CONFIG_RTL8192DE is not set
# CONFIG_RTL8723AE is not set
# CONFIG_RTL8188EE is not set
CONFIG_RTL8192CU=m
CONFIG_RTLWIFI=m
CONFIG_RTLWIFI_PCI=m
CONFIG_RTLWIFI_USB=m
CONFIG_RTLWIFI_DEBUG=y
CONFIG_RTL8192C_COMMON=m
# CONFIG_WL_TI is not set
CONFIG_ZD1211RW=m
# CONFIG_ZD1211RW_DEBUG is not set
# CONFIG_MWIFIEX is not set
# CONFIG_CW1200 is not set
#
# WiMAX Wireless Broadband devices
#
CONFIG_WIMAX_I2400M=m
CONFIG_WIMAX_I2400M_USB=m
CONFIG_WIMAX_I2400M_DEBUG_LEVEL=8
CONFIG_WAN=y
# CONFIG_LANMEDIA is not set
CONFIG_HDLC=m
CONFIG_HDLC_RAW=m
# CONFIG_HDLC_RAW_ETH is not set
CONFIG_HDLC_CISCO=m
CONFIG_HDLC_FR=m
CONFIG_HDLC_PPP=m
#
# X.25/LAPB support is disabled
#
# CONFIG_PCI200SYN is not set
# CONFIG_WANXL is not set
# CONFIG_PC300TOO is not set
# CONFIG_FARSYNC is not set
# CONFIG_DSCC4 is not set
CONFIG_DLCI=m
CONFIG_DLCI_MAX=8
# CONFIG_SBNI is not set
CONFIG_IEEE802154_DRIVERS=m
CONFIG_IEEE802154_FAKEHARD=m
CONFIG_XEN_NETDEV_FRONTEND=y
CONFIG_XEN_NETDEV_BACKEND=m
CONFIG_VMXNET3=m
CONFIG_ISDN=y
CONFIG_ISDN_I4L=m
CONFIG_ISDN_PPP=y
CONFIG_ISDN_PPP_VJ=y
CONFIG_ISDN_MPP=y
CONFIG_IPPP_FILTER=y
# CONFIG_ISDN_PPP_BSDCOMP is not set
CONFIG_ISDN_AUDIO=y
CONFIG_ISDN_TTY_FAX=y
#
# ISDN feature submodules
#
CONFIG_ISDN_DIVERSION=m
#
# ISDN4Linux hardware drivers
#
#
# Passive cards
#
CONFIG_ISDN_DRV_HISAX=m
#
# D-channel protocol features
#
CONFIG_HISAX_EURO=y
CONFIG_DE_AOC=y
CONFIG_HISAX_NO_SENDCOMPLETE=y
CONFIG_HISAX_NO_LLC=y
CONFIG_HISAX_NO_KEYPAD=y
CONFIG_HISAX_1TR6=y
CONFIG_HISAX_NI1=y
CONFIG_HISAX_MAX_CARDS=8
#
# HiSax supported cards
#
CONFIG_HISAX_16_3=y
CONFIG_HISAX_TELESPCI=y
CONFIG_HISAX_S0BOX=y
CONFIG_HISAX_FRITZPCI=y
CONFIG_HISAX_AVM_A1_PCMCIA=y
CONFIG_HISAX_ELSA=y
CONFIG_HISAX_DIEHLDIVA=y
CONFIG_HISAX_SEDLBAUER=y
CONFIG_HISAX_NETJET=y
CONFIG_HISAX_NETJET_U=y
CONFIG_HISAX_NICCY=y
CONFIG_HISAX_BKM_A4T=y
CONFIG_HISAX_SCT_QUADRO=y
CONFIG_HISAX_GAZEL=y
CONFIG_HISAX_HFC_PCI=y
CONFIG_HISAX_W6692=y
CONFIG_HISAX_HFC_SX=y
CONFIG_HISAX_ENTERNOW_PCI=y
# CONFIG_HISAX_DEBUG is not set
#
# HiSax PCMCIA card service modules
#
CONFIG_HISAX_SEDLBAUER_CS=m
CONFIG_HISAX_ELSA_CS=m
CONFIG_HISAX_AVM_A1_CS=m
CONFIG_HISAX_TELES_CS=m
#
# HiSax sub driver modules
#
CONFIG_HISAX_ST5481=m
# CONFIG_HISAX_HFCUSB is not set
CONFIG_HISAX_HFC4S8S=m
CONFIG_HISAX_FRITZ_PCIPNP=m
#
# Active cards
#
CONFIG_ISDN_CAPI=m
CONFIG_ISDN_DRV_AVMB1_VERBOSE_REASON=y
# CONFIG_CAPI_TRACE is not set
CONFIG_ISDN_CAPI_CAPI20=m
CONFIG_ISDN_CAPI_MIDDLEWARE=y
CONFIG_ISDN_CAPI_CAPIDRV=m
#
# CAPI hardware drivers
#
CONFIG_CAPI_AVM=y
CONFIG_ISDN_DRV_AVMB1_B1PCI=m
CONFIG_ISDN_DRV_AVMB1_B1PCIV4=y
CONFIG_ISDN_DRV_AVMB1_B1PCMCIA=m
CONFIG_ISDN_DRV_AVMB1_AVM_CS=m
CONFIG_ISDN_DRV_AVMB1_T1PCI=m
CONFIG_ISDN_DRV_AVMB1_C4=m
CONFIG_CAPI_EICON=y
# CONFIG_ISDN_DIVAS is not set
CONFIG_ISDN_DRV_GIGASET=m
# CONFIG_GIGASET_CAPI is not set
CONFIG_GIGASET_I4L=y
# CONFIG_GIGASET_DUMMYLL is not set
CONFIG_GIGASET_BASE=m
CONFIG_GIGASET_M105=m
CONFIG_GIGASET_M101=m
# CONFIG_GIGASET_DEBUG is not set
CONFIG_HYSDN=m
CONFIG_HYSDN_CAPI=y
CONFIG_MISDN=m
CONFIG_MISDN_DSP=m
CONFIG_MISDN_L1OIP=m
#
# mISDN hardware drivers
#
CONFIG_MISDN_HFCPCI=m
CONFIG_MISDN_HFCMULTI=m
CONFIG_MISDN_HFCUSB=m
CONFIG_MISDN_AVMFRITZ=m
CONFIG_MISDN_SPEEDFAX=m
CONFIG_MISDN_INFINEON=m
CONFIG_MISDN_W6692=m
CONFIG_MISDN_NETJET=m
CONFIG_MISDN_IPAC=m
CONFIG_MISDN_ISAR=m
CONFIG_ISDN_HDLC=m
#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_FF_MEMLESS=y
CONFIG_INPUT_POLLDEV=m
CONFIG_INPUT_SPARSEKMAP=m
CONFIG_INPUT_MATRIXKMAP=m
#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_EVBUG is not set
#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ADP5588 is not set
# CONFIG_KEYBOARD_ADP5589 is not set
CONFIG_KEYBOARD_ATKBD=y
CONFIG_KEYBOARD_QT1070=m
CONFIG_KEYBOARD_QT2160=m
# CONFIG_KEYBOARD_LKKBD is not set
CONFIG_KEYBOARD_GPIO=m
CONFIG_KEYBOARD_GPIO_POLLED=m
CONFIG_KEYBOARD_TCA6416=m
# CONFIG_KEYBOARD_TCA8418 is not set
CONFIG_KEYBOARD_MATRIX=m
# CONFIG_KEYBOARD_LM8323 is not set
# CONFIG_KEYBOARD_LM8333 is not set
# CONFIG_KEYBOARD_MAX7359 is not set
CONFIG_KEYBOARD_MCS=m
# CONFIG_KEYBOARD_MPR121 is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_CYPRESS=y
CONFIG_MOUSE_PS2_LIFEBOOK=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
CONFIG_MOUSE_PS2_ELANTECH=y
# CONFIG_MOUSE_PS2_SENTELIC is not set
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
CONFIG_MOUSE_SERIAL=m
CONFIG_MOUSE_APPLETOUCH=m
CONFIG_MOUSE_BCM5974=m
# CONFIG_MOUSE_CYAPA is not set
CONFIG_MOUSE_VSXXXAA=m
CONFIG_MOUSE_GPIO=m
CONFIG_MOUSE_SYNAPTICS_I2C=m
# CONFIG_MOUSE_SYNAPTICS_USB is not set
# CONFIG_INPUT_JOYSTICK is not set
CONFIG_INPUT_TABLET=y
CONFIG_TABLET_USB_ACECAD=m
CONFIG_TABLET_USB_AIPTEK=m
CONFIG_TABLET_USB_GTCO=m
CONFIG_TABLET_USB_HANWANG=m
CONFIG_TABLET_USB_KBTAB=m
CONFIG_TABLET_USB_WACOM=m
CONFIG_INPUT_TOUCHSCREEN=y
CONFIG_TOUCHSCREEN_AD7879=m
CONFIG_TOUCHSCREEN_AD7879_I2C=m
CONFIG_TOUCHSCREEN_ATMEL_MXT=m
# CONFIG_TOUCHSCREEN_AUO_PIXCIR is not set
CONFIG_TOUCHSCREEN_BU21013=m
CONFIG_TOUCHSCREEN_CY8CTMG110=m
# CONFIG_TOUCHSCREEN_CYTTSP_CORE is not set
# CONFIG_TOUCHSCREEN_CYTTSP4_CORE is not set
CONFIG_TOUCHSCREEN_DYNAPRO=m
CONFIG_TOUCHSCREEN_HAMPSHIRE=m
CONFIG_TOUCHSCREEN_EETI=m
CONFIG_TOUCHSCREEN_FUJITSU=m
# CONFIG_TOUCHSCREEN_ILI210X is not set
CONFIG_TOUCHSCREEN_GUNZE=m
CONFIG_TOUCHSCREEN_ELO=m
CONFIG_TOUCHSCREEN_WACOM_W8001=m
# CONFIG_TOUCHSCREEN_WACOM_I2C is not set
# CONFIG_TOUCHSCREEN_MAX11801 is not set
# CONFIG_TOUCHSCREEN_MCS5000 is not set
# CONFIG_TOUCHSCREEN_MMS114 is not set
CONFIG_TOUCHSCREEN_MTOUCH=m
CONFIG_TOUCHSCREEN_INEXIO=m
CONFIG_TOUCHSCREEN_MK712=m
CONFIG_TOUCHSCREEN_PENMOUNT=m
# CONFIG_TOUCHSCREEN_EDT_FT5X06 is not set
CONFIG_TOUCHSCREEN_TOUCHRIGHT=m
CONFIG_TOUCHSCREEN_TOUCHWIN=m
# CONFIG_TOUCHSCREEN_PIXCIR is not set
# CONFIG_TOUCHSCREEN_WM97XX is not set
CONFIG_TOUCHSCREEN_USB_COMPOSITE=m
CONFIG_TOUCHSCREEN_USB_EGALAX=y
CONFIG_TOUCHSCREEN_USB_PANJIT=y
CONFIG_TOUCHSCREEN_USB_3M=y
CONFIG_TOUCHSCREEN_USB_ITM=y
CONFIG_TOUCHSCREEN_USB_ETURBO=y
CONFIG_TOUCHSCREEN_USB_GUNZE=y
CONFIG_TOUCHSCREEN_USB_DMC_TSC10=y
CONFIG_TOUCHSCREEN_USB_IRTOUCH=y
CONFIG_TOUCHSCREEN_USB_IDEALTEK=y
CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH=y
CONFIG_TOUCHSCREEN_USB_GOTOP=y
CONFIG_TOUCHSCREEN_USB_JASTEC=y
CONFIG_TOUCHSCREEN_USB_ELO=y
CONFIG_TOUCHSCREEN_USB_E2I=y
CONFIG_TOUCHSCREEN_USB_ZYTRONIC=y
CONFIG_TOUCHSCREEN_USB_ETT_TC45USB=y
CONFIG_TOUCHSCREEN_USB_NEXIO=y
CONFIG_TOUCHSCREEN_USB_EASYTOUCH=y
CONFIG_TOUCHSCREEN_TOUCHIT213=m
# CONFIG_TOUCHSCREEN_TSC_SERIO is not set
CONFIG_TOUCHSCREEN_TSC2007=m
# CONFIG_TOUCHSCREEN_ST1232 is not set
# CONFIG_TOUCHSCREEN_SUR40 is not set
# CONFIG_TOUCHSCREEN_TPS6507X is not set
# CONFIG_TOUCHSCREEN_ZFORCE is not set
CONFIG_INPUT_MISC=y
# CONFIG_INPUT_AD714X is not set
# CONFIG_INPUT_BMA150 is not set
CONFIG_INPUT_PCSPKR=m
# CONFIG_INPUT_MMA8450 is not set
# CONFIG_INPUT_MPU3050 is not set
CONFIG_INPUT_APANEL=m
# CONFIG_INPUT_GP2A is not set
# CONFIG_INPUT_GPIO_TILT_POLLED is not set
CONFIG_INPUT_ATLAS_BTNS=m
CONFIG_INPUT_ATI_REMOTE2=m
CONFIG_INPUT_KEYSPAN_REMOTE=m
# CONFIG_INPUT_KXTJ9 is not set
CONFIG_INPUT_POWERMATE=m
CONFIG_INPUT_YEALINK=m
CONFIG_INPUT_CM109=m
CONFIG_INPUT_UINPUT=m
# CONFIG_INPUT_PCF8574 is not set
# CONFIG_INPUT_GPIO_ROTARY_ENCODER is not set
# CONFIG_INPUT_ADXL34X is not set
# CONFIG_INPUT_IMS_PCU is not set
# CONFIG_INPUT_CMA3000 is not set
CONFIG_INPUT_XEN_KBDDEV_FRONTEND=y
# CONFIG_INPUT_IDEAPAD_SLIDEBAR is not set
#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y
CONFIG_SERIO_I8042=y
CONFIG_SERIO_SERPORT=y
# CONFIG_SERIO_CT82C710 is not set
# CONFIG_SERIO_PARKBD is not set
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
CONFIG_SERIO_RAW=m
# CONFIG_SERIO_ALTERA_PS2 is not set
# CONFIG_SERIO_PS2MULT is not set
# CONFIG_SERIO_ARC_PS2 is not set
# CONFIG_GAMEPORT is not set
#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_VT_CONSOLE_SLEEP=y
CONFIG_HW_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_UNIX98_PTYS=y
CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
# CONFIG_LEGACY_PTYS is not set
CONFIG_SERIAL_NONSTANDARD=y
# CONFIG_ROCKETPORT is not set
CONFIG_CYCLADES=m
# CONFIG_CYZ_INTR is not set
# CONFIG_MOXA_INTELLIO is not set
# CONFIG_MOXA_SMARTIO is not set
CONFIG_SYNCLINK=m
CONFIG_SYNCLINKMP=m
CONFIG_SYNCLINK_GT=m
CONFIG_NOZOMI=m
# CONFIG_ISI is not set
CONFIG_N_HDLC=m
# CONFIG_N_GSM is not set
# CONFIG_TRACE_SINK is not set
# CONFIG_DEVKMEM is not set
#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_DEPRECATED_OPTIONS=y
CONFIG_SERIAL_8250_PNP=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_SERIAL_8250_DMA=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_CS=m
CONFIG_SERIAL_8250_NR_UARTS=32
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
CONFIG_SERIAL_8250_DETECT_IRQ=y
CONFIG_SERIAL_8250_RSA=y
# CONFIG_SERIAL_8250_DW is not set
#
# Non-8250 serial port support
#
# CONFIG_SERIAL_KGDB_NMI is not set
CONFIG_SERIAL_MFD_HSU=m
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_CONSOLE_POLL=y
CONFIG_SERIAL_JSM=m
# CONFIG_SERIAL_SCCNXP is not set
CONFIG_SERIAL_TIMBERDALE=m
CONFIG_SERIAL_ALTERA_JTAGUART=m
CONFIG_SERIAL_ALTERA_UART=m
CONFIG_SERIAL_ALTERA_UART_MAXPORTS=4
CONFIG_SERIAL_ALTERA_UART_BAUDRATE=115200
CONFIG_SERIAL_PCH_UART=m
# CONFIG_SERIAL_ARC is not set
# CONFIG_SERIAL_RP2 is not set
# CONFIG_SERIAL_FSL_LPUART is not set
CONFIG_PRINTER=m
CONFIG_LP_CONSOLE=y
CONFIG_PPDEV=m
CONFIG_HVC_DRIVER=y
CONFIG_HVC_IRQ=y
CONFIG_HVC_XEN=y
CONFIG_HVC_XEN_FRONTEND=y
CONFIG_VIRTIO_CONSOLE=m
CONFIG_IPMI_HANDLER=m
# CONFIG_IPMI_PANIC_EVENT is not set
CONFIG_IPMI_DEVICE_INTERFACE=m
CONFIG_IPMI_SI=m
CONFIG_IPMI_WATCHDOG=m
CONFIG_IPMI_POWEROFF=m
CONFIG_HW_RANDOM=y
CONFIG_HW_RANDOM_TIMERIOMEM=m
CONFIG_HW_RANDOM_INTEL=m
CONFIG_HW_RANDOM_AMD=m
CONFIG_HW_RANDOM_VIA=m
CONFIG_HW_RANDOM_VIRTIO=m
CONFIG_HW_RANDOM_TPM=y
CONFIG_NVRAM=y
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
#
# PCMCIA character devices
#
# CONFIG_SYNCLINK_CS is not set
CONFIG_CARDMAN_4000=m
CONFIG_CARDMAN_4040=m
CONFIG_IPWIRELESS=m
# CONFIG_MWAVE is not set
CONFIG_RAW_DRIVER=y
CONFIG_MAX_RAW_DEVS=8192
CONFIG_HPET=y
# CONFIG_HPET_MMAP is not set
CONFIG_HANGCHECK_TIMER=m
CONFIG_TCG_TPM=y
CONFIG_TCG_TIS=y
# CONFIG_TCG_TIS_I2C_ATMEL is not set
# CONFIG_TCG_TIS_I2C_INFINEON is not set
# CONFIG_TCG_TIS_I2C_NUVOTON is not set
CONFIG_TCG_NSC=m
CONFIG_TCG_ATMEL=m
CONFIG_TCG_INFINEON=m
# CONFIG_TCG_ST33_I2C is not set
# CONFIG_TCG_XEN is not set
CONFIG_TELCLOCK=m
CONFIG_DEVPORT=y
CONFIG_I2C=m
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
CONFIG_I2C_CHARDEV=m
# CONFIG_I2C_MUX is not set
CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_SMBUS=m
CONFIG_I2C_ALGOBIT=m
CONFIG_I2C_ALGOPCA=m
#
# I2C Hardware Bus support
#
#
# PC SMBus host controller drivers
#
# CONFIG_I2C_ALI1535 is not set
# CONFIG_I2C_ALI1563 is not set
# CONFIG_I2C_ALI15X3 is not set
CONFIG_I2C_AMD756=m
CONFIG_I2C_AMD756_S4882=m
CONFIG_I2C_AMD8111=m
CONFIG_I2C_I801=m
CONFIG_I2C_ISCH=m
# CONFIG_I2C_ISMT is not set
CONFIG_I2C_PIIX4=m
CONFIG_I2C_NFORCE2=m
CONFIG_I2C_NFORCE2_S4985=m
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
CONFIG_I2C_SIS96X=m
CONFIG_I2C_VIA=m
CONFIG_I2C_VIAPRO=m
#
# ACPI drivers
#
# CONFIG_I2C_SCMI is not set
#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_CBUS_GPIO is not set
# CONFIG_I2C_DESIGNWARE_PLATFORM is not set
# CONFIG_I2C_DESIGNWARE_PCI is not set
# CONFIG_I2C_EG20T is not set
# CONFIG_I2C_GPIO is not set
# CONFIG_I2C_OCORES is not set
CONFIG_I2C_PCA_PLATFORM=m
# CONFIG_I2C_PXA_PCI is not set
CONFIG_I2C_SIMTEC=m
# CONFIG_I2C_XILINX is not set
#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_DIOLAN_U2C is not set
CONFIG_I2C_PARPORT=m
CONFIG_I2C_PARPORT_LIGHT=m
# CONFIG_I2C_ROBOTFUZZ_OSIF is not set
# CONFIG_I2C_TAOS_EVM is not set
CONFIG_I2C_TINY_USB=m
#
# Other I2C/SMBus bus drivers
#
CONFIG_I2C_STUB=m
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# CONFIG_SPI is not set
# CONFIG_HSI is not set
#
# PPS support
#
CONFIG_PPS=m
# CONFIG_PPS_DEBUG is not set
#
# PPS clients support
#
# CONFIG_PPS_CLIENT_KTIMER is not set
# CONFIG_PPS_CLIENT_LDISC is not set
# CONFIG_PPS_CLIENT_PARPORT is not set
# CONFIG_PPS_CLIENT_GPIO is not set
#
# PPS generators support
#
#
# PTP clock support
#
CONFIG_PTP_1588_CLOCK=m
#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
CONFIG_PTP_1588_CLOCK_PCH=m
CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
CONFIG_GPIOLIB=y
CONFIG_GPIO_DEVRES=y
CONFIG_GPIO_ACPI=y
# CONFIG_DEBUG_GPIO is not set
# CONFIG_GPIO_SYSFS is not set
#
# Memory mapped GPIO drivers:
#
# CONFIG_GPIO_GENERIC_PLATFORM is not set
# CONFIG_GPIO_IT8761E is not set
# CONFIG_GPIO_F7188X is not set
# CONFIG_GPIO_SCH311X is not set
# CONFIG_GPIO_TS5500 is not set
# CONFIG_GPIO_SCH is not set
# CONFIG_GPIO_ICH is not set
# CONFIG_GPIO_VX855 is not set
# CONFIG_GPIO_LYNXPOINT is not set
#
# I2C GPIO expanders:
#
# CONFIG_GPIO_MAX7300 is not set
# CONFIG_GPIO_MAX732X is not set
# CONFIG_GPIO_PCA953X is not set
# CONFIG_GPIO_PCF857X is not set
# CONFIG_GPIO_ADP5588 is not set
#
# PCI GPIO expanders:
#
# CONFIG_GPIO_BT8XX is not set
# CONFIG_GPIO_AMD8111 is not set
# CONFIG_GPIO_INTEL_MID is not set
# CONFIG_GPIO_PCH is not set
# CONFIG_GPIO_ML_IOH is not set
# CONFIG_GPIO_RDC321X is not set
#
# SPI GPIO expanders:
#
#
# AC97 GPIO expanders:
#
#
# LPC GPIO expanders:
#
#
# MODULbus GPIO expanders:
#
#
# USB GPIO expanders:
#
# CONFIG_W1 is not set
CONFIG_POWER_SUPPLY=y
# CONFIG_POWER_SUPPLY_DEBUG is not set
# CONFIG_PDA_POWER is not set
# CONFIG_TEST_POWER is not set
# CONFIG_BATTERY_DS2780 is not set
# CONFIG_BATTERY_DS2781 is not set
# CONFIG_BATTERY_DS2782 is not set
# CONFIG_BATTERY_SBS is not set
CONFIG_BATTERY_BQ27x00=m
CONFIG_BATTERY_BQ27X00_I2C=y
CONFIG_BATTERY_BQ27X00_PLATFORM=y
CONFIG_BATTERY_MAX17040=m
# CONFIG_BATTERY_MAX17042 is not set
# CONFIG_CHARGER_MAX8903 is not set
# CONFIG_CHARGER_LP8727 is not set
# CONFIG_CHARGER_GPIO is not set
# CONFIG_CHARGER_MANAGER is not set
# CONFIG_CHARGER_BQ2415X is not set
# CONFIG_CHARGER_BQ24190 is not set
# CONFIG_CHARGER_BQ24735 is not set
# CONFIG_CHARGER_SMB347 is not set
# CONFIG_POWER_RESET is not set
# CONFIG_POWER_AVS is not set
CONFIG_HWMON=m
CONFIG_HWMON_VID=m
# CONFIG_HWMON_DEBUG_CHIP is not set
#
# Native drivers
#
CONFIG_SENSORS_ABITUGURU=m
CONFIG_SENSORS_ABITUGURU3=m
CONFIG_SENSORS_AD7414=m
CONFIG_SENSORS_AD7418=m
CONFIG_SENSORS_ADM1021=m
CONFIG_SENSORS_ADM1025=m
CONFIG_SENSORS_ADM1026=m
CONFIG_SENSORS_ADM1029=m
CONFIG_SENSORS_ADM1031=m
CONFIG_SENSORS_ADM9240=m
# CONFIG_SENSORS_ADT7410 is not set
CONFIG_SENSORS_ADT7411=m
CONFIG_SENSORS_ADT7462=m
CONFIG_SENSORS_ADT7470=m
CONFIG_SENSORS_ADT7475=m
CONFIG_SENSORS_ASC7621=m
CONFIG_SENSORS_K8TEMP=m
CONFIG_SENSORS_K10TEMP=m
# CONFIG_SENSORS_FAM15H_POWER is not set
CONFIG_SENSORS_ASB100=m
CONFIG_SENSORS_ATXP1=m
CONFIG_SENSORS_DS620=m
CONFIG_SENSORS_DS1621=m
CONFIG_SENSORS_I5K_AMB=m
CONFIG_SENSORS_F71805F=m
CONFIG_SENSORS_F71882FG=m
CONFIG_SENSORS_F75375S=m
CONFIG_SENSORS_FSCHMD=m
CONFIG_SENSORS_G760A=m
# CONFIG_SENSORS_G762 is not set
CONFIG_SENSORS_GL518SM=m
CONFIG_SENSORS_GL520SM=m
CONFIG_SENSORS_GPIO_FAN=m
# CONFIG_SENSORS_HIH6130 is not set
# CONFIG_SENSORS_HTU21 is not set
CONFIG_SENSORS_CORETEMP=m
CONFIG_SENSORS_IBMAEM=m
CONFIG_SENSORS_IBMPEX=m
CONFIG_SENSORS_IT87=m
CONFIG_SENSORS_JC42=m
CONFIG_SENSORS_LINEAGE=m
CONFIG_SENSORS_LM63=m
CONFIG_SENSORS_LM73=m
CONFIG_SENSORS_LM75=m
CONFIG_SENSORS_LM77=m
CONFIG_SENSORS_LM78=m
CONFIG_SENSORS_LM80=m
CONFIG_SENSORS_LM83=m
CONFIG_SENSORS_LM85=m
CONFIG_SENSORS_LM87=m
CONFIG_SENSORS_LM90=m
CONFIG_SENSORS_LM92=m
CONFIG_SENSORS_LM93=m
CONFIG_SENSORS_LTC4151=m
CONFIG_SENSORS_LTC4215=m
CONFIG_SENSORS_LTC4245=m
CONFIG_SENSORS_LTC4261=m
# CONFIG_SENSORS_LM95234 is not set
CONFIG_SENSORS_LM95241=m
# CONFIG_SENSORS_LM95245 is not set
# CONFIG_SENSORS_MAX16065 is not set
CONFIG_SENSORS_MAX1619=m
# CONFIG_SENSORS_MAX1668 is not set
# CONFIG_SENSORS_MAX197 is not set
CONFIG_SENSORS_MAX6639=m
# CONFIG_SENSORS_MAX6642 is not set
CONFIG_SENSORS_MAX6650=m
# CONFIG_SENSORS_MAX6697 is not set
# CONFIG_SENSORS_MCP3021 is not set
# CONFIG_SENSORS_NCT6775 is not set
# CONFIG_SENSORS_NTC_THERMISTOR is not set
CONFIG_SENSORS_PC87360=m
CONFIG_SENSORS_PC87427=m
CONFIG_SENSORS_PCF8591=m
CONFIG_PMBUS=m
CONFIG_SENSORS_PMBUS=m
# CONFIG_SENSORS_ADM1275 is not set
# CONFIG_SENSORS_LM25066 is not set
# CONFIG_SENSORS_LTC2978 is not set
CONFIG_SENSORS_MAX16064=m
CONFIG_SENSORS_MAX34440=m
CONFIG_SENSORS_MAX8688=m
# CONFIG_SENSORS_UCD9000 is not set
# CONFIG_SENSORS_UCD9200 is not set
# CONFIG_SENSORS_ZL6100 is not set
CONFIG_SENSORS_SHT15=m
CONFIG_SENSORS_SHT21=m
CONFIG_SENSORS_SIS5595=m
CONFIG_SENSORS_SMM665=m
CONFIG_SENSORS_DME1737=m
CONFIG_SENSORS_EMC1403=m
CONFIG_SENSORS_EMC2103=m
# CONFIG_SENSORS_EMC6W201 is not set
CONFIG_SENSORS_SMSC47M1=m
CONFIG_SENSORS_SMSC47M192=m
CONFIG_SENSORS_SMSC47B397=m
CONFIG_SENSORS_SCH56XX_COMMON=m
CONFIG_SENSORS_SCH5627=m
# CONFIG_SENSORS_SCH5636 is not set
CONFIG_SENSORS_ADS1015=m
CONFIG_SENSORS_ADS7828=m
CONFIG_SENSORS_AMC6821=m
# CONFIG_SENSORS_INA209 is not set
# CONFIG_SENSORS_INA2XX is not set
CONFIG_SENSORS_THMC50=m
CONFIG_SENSORS_TMP102=m
CONFIG_SENSORS_TMP401=m
# CONFIG_SENSORS_TMP421 is not set
CONFIG_SENSORS_VIA_CPUTEMP=m
CONFIG_SENSORS_VIA686A=m
CONFIG_SENSORS_VT1211=m
CONFIG_SENSORS_VT8231=m
CONFIG_SENSORS_W83781D=m
CONFIG_SENSORS_W83791D=m
CONFIG_SENSORS_W83792D=m
CONFIG_SENSORS_W83793=m
# CONFIG_SENSORS_W83795 is not set
CONFIG_SENSORS_W83L785TS=m
CONFIG_SENSORS_W83L786NG=m
CONFIG_SENSORS_W83627HF=m
CONFIG_SENSORS_W83627EHF=m
CONFIG_SENSORS_APPLESMC=m
#
# ACPI drivers
#
# CONFIG_SENSORS_ACPI_POWER is not set
CONFIG_SENSORS_ATK0110=m
CONFIG_THERMAL=y
CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE=y
# CONFIG_THERMAL_DEFAULT_GOV_FAIR_SHARE is not set
# CONFIG_THERMAL_DEFAULT_GOV_USER_SPACE is not set
# CONFIG_THERMAL_GOV_FAIR_SHARE is not set
CONFIG_THERMAL_GOV_STEP_WISE=y
CONFIG_THERMAL_GOV_USER_SPACE=y
# CONFIG_THERMAL_EMULATION is not set
# CONFIG_INTEL_POWERCLAMP is not set
CONFIG_X86_PKG_TEMP_THERMAL=m
# CONFIG_ACPI_INT3403_THERMAL is not set
#
# Texas Instruments thermal drivers
#
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_CORE=y
# CONFIG_WATCHDOG_NOWAYOUT is not set
#
# Watchdog Device Drivers
#
CONFIG_SOFT_WATCHDOG=m
# CONFIG_DW_WATCHDOG is not set
# CONFIG_ACQUIRE_WDT is not set
# CONFIG_ADVANTECH_WDT is not set
CONFIG_ALIM1535_WDT=m
CONFIG_ALIM7101_WDT=m
# CONFIG_F71808E_WDT is not set
# CONFIG_SP5100_TCO is not set
# CONFIG_SC520_WDT is not set
CONFIG_SBC_FITPC2_WATCHDOG=m
# CONFIG_EUROTECH_WDT is not set
# CONFIG_IB700_WDT is not set
CONFIG_IBMASR=m
# CONFIG_WAFER_WDT is not set
CONFIG_I6300ESB_WDT=m
# CONFIG_IE6XX_WDT is not set
CONFIG_ITCO_WDT=m
CONFIG_ITCO_VENDOR_SUPPORT=y
CONFIG_IT8712F_WDT=m
CONFIG_IT87_WDT=m
CONFIG_HP_WATCHDOG=m
CONFIG_HPWDT_NMI_DECODING=y
# CONFIG_SC1200_WDT is not set
# CONFIG_PC87413_WDT is not set
# CONFIG_NV_TCO is not set
# CONFIG_60XX_WDT is not set
# CONFIG_SBC8360_WDT is not set
# CONFIG_CPU5_WDT is not set
CONFIG_SMSC_SCH311X_WDT=m
# CONFIG_SMSC37B787_WDT is not set
# CONFIG_VIA_WDT is not set
CONFIG_W83627HF_WDT=m
CONFIG_W83697HF_WDT=m
CONFIG_W83697UG_WDT=m
CONFIG_W83877F_WDT=m
CONFIG_W83977F_WDT=m
CONFIG_MACHZ_WDT=m
# CONFIG_SBC_EPX_C3_WATCHDOG is not set
# CONFIG_MEN_A21_WDT is not set
# CONFIG_XEN_WDT is not set
#
# PCI-based Watchdog Cards
#
CONFIG_PCIPCWATCHDOG=m
CONFIG_WDTPCI=m
#
# USB-based Watchdog Cards
#
CONFIG_USBPCWATCHDOG=m
CONFIG_SSB_POSSIBLE=y
#
# Sonics Silicon Backplane
#
CONFIG_SSB=m
CONFIG_SSB_SPROM=y
CONFIG_SSB_BLOCKIO=y
CONFIG_SSB_PCIHOST_POSSIBLE=y
CONFIG_SSB_PCIHOST=y
CONFIG_SSB_B43_PCI_BRIDGE=y
CONFIG_SSB_PCMCIAHOST_POSSIBLE=y
CONFIG_SSB_PCMCIAHOST=y
CONFIG_SSB_SDIOHOST_POSSIBLE=y
CONFIG_SSB_SDIOHOST=y
# CONFIG_SSB_DEBUG is not set
CONFIG_SSB_DRIVER_PCICORE_POSSIBLE=y
CONFIG_SSB_DRIVER_PCICORE=y
# CONFIG_SSB_DRIVER_GPIO is not set
CONFIG_BCMA_POSSIBLE=y
#
# Broadcom specific AMBA
#
# CONFIG_BCMA is not set
#
# Multifunction device drivers
#
CONFIG_MFD_CORE=m
# CONFIG_MFD_CS5535 is not set
# CONFIG_MFD_CROS_EC is not set
# CONFIG_MFD_MC13XXX_I2C is not set
# CONFIG_HTC_PASIC3 is not set
CONFIG_LPC_ICH=m
CONFIG_LPC_SCH=m
# CONFIG_MFD_JANZ_CMODIO is not set
# CONFIG_MFD_KEMPLD is not set
# CONFIG_MFD_VIPERBOARD is not set
# CONFIG_MFD_RETU is not set
# CONFIG_MFD_PCF50633 is not set
# CONFIG_UCB1400_CORE is not set
# CONFIG_MFD_RDC321X is not set
# CONFIG_MFD_RTSX_PCI is not set
# CONFIG_MFD_SI476X_CORE is not set
CONFIG_MFD_SM501=m
# CONFIG_MFD_SM501_GPIO is not set
# CONFIG_ABX500_CORE is not set
# CONFIG_MFD_SYSCON is not set
# CONFIG_MFD_TI_AM335X_TSCADC is not set
# CONFIG_MFD_LP3943 is not set
# CONFIG_TPS6105X is not set
# CONFIG_TPS65010 is not set
# CONFIG_TPS6507X is not set
# CONFIG_MFD_TPS65217 is not set
# CONFIG_MFD_TPS65912 is not set
# CONFIG_MFD_WL1273_CORE is not set
# CONFIG_MFD_LM3533 is not set
# CONFIG_MFD_TIMBERDALE is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_MFD_VX855 is not set
# CONFIG_MFD_ARIZONA_I2C is not set
CONFIG_REGULATOR=y
# CONFIG_REGULATOR_DEBUG is not set
CONFIG_REGULATOR_FIXED_VOLTAGE=m
# CONFIG_REGULATOR_VIRTUAL_CONSUMER is not set
CONFIG_REGULATOR_USERSPACE_CONSUMER=m
# CONFIG_REGULATOR_ACT8865 is not set
# CONFIG_REGULATOR_AD5398 is not set
# CONFIG_REGULATOR_DA9210 is not set
# CONFIG_REGULATOR_FAN53555 is not set
# CONFIG_REGULATOR_GPIO is not set
# CONFIG_REGULATOR_ISL6271A is not set
CONFIG_REGULATOR_LP3971=m
# CONFIG_REGULATOR_LP3972 is not set
# CONFIG_REGULATOR_LP872X is not set
# CONFIG_REGULATOR_LP8755 is not set
CONFIG_REGULATOR_MAX1586=m
# CONFIG_REGULATOR_MAX8649 is not set
# CONFIG_REGULATOR_MAX8660 is not set
# CONFIG_REGULATOR_MAX8952 is not set
# CONFIG_REGULATOR_MAX8973 is not set
# CONFIG_REGULATOR_PFUZE100 is not set
# CONFIG_REGULATOR_TPS51632 is not set
# CONFIG_REGULATOR_TPS62360 is not set
CONFIG_REGULATOR_TPS65023=m
CONFIG_REGULATOR_TPS6507X=m
CONFIG_MEDIA_SUPPORT=m
#
# Multimedia core support
#
# CONFIG_MEDIA_CAMERA_SUPPORT is not set
# CONFIG_MEDIA_ANALOG_TV_SUPPORT is not set
# CONFIG_MEDIA_DIGITAL_TV_SUPPORT is not set
# CONFIG_MEDIA_RADIO_SUPPORT is not set
# CONFIG_MEDIA_RC_SUPPORT is not set
# CONFIG_VIDEO_ADV_DEBUG is not set
# CONFIG_VIDEO_FIXED_MINOR_RANGES is not set
# CONFIG_TTPCI_EEPROM is not set
#
# Media drivers
#
# CONFIG_MEDIA_USB_SUPPORT is not set
# CONFIG_MEDIA_PCI_SUPPORT is not set
#
# Supported MMC/SDIO adapters
#
# CONFIG_CYPRESS_FIRMWARE is not set
#
# Media ancillary drivers (tuners, sensors, i2c, frontends)
#
#
# Customise DVB Frontends
#
CONFIG_DVB_TUNER_DIB0070=m
CONFIG_DVB_TUNER_DIB0090=m
#
# Tools to develop new frontends
#
# CONFIG_DVB_DUMMY_FE is not set
#
# Graphics support
#
CONFIG_AGP=y
CONFIG_AGP_AMD64=y
CONFIG_AGP_INTEL=y
CONFIG_AGP_SIS=y
CONFIG_AGP_VIA=y
CONFIG_INTEL_GTT=y
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=64
# CONFIG_VGA_SWITCHEROO is not set
CONFIG_DRM=m
CONFIG_DRM_KMS_HELPER=m
CONFIG_DRM_KMS_FB_HELPER=y
# CONFIG_DRM_LOAD_EDID_FIRMWARE is not set
CONFIG_DRM_TTM=m
#
# I2C encoder or helper chips
#
CONFIG_DRM_I2C_CH7006=m
CONFIG_DRM_I2C_SIL164=m
# CONFIG_DRM_I2C_NXP_TDA998X is not set
# CONFIG_DRM_TDFX is not set
CONFIG_DRM_R128=m
CONFIG_DRM_RADEON=m
# CONFIG_DRM_RADEON_UMS is not set
CONFIG_DRM_NOUVEAU=m
CONFIG_NOUVEAU_DEBUG=5
CONFIG_NOUVEAU_DEBUG_DEFAULT=3
CONFIG_DRM_NOUVEAU_BACKLIGHT=y
# CONFIG_DRM_I810 is not set
CONFIG_DRM_I915=m
CONFIG_DRM_I915_KMS=y
CONFIG_DRM_I915_FBDEV=y
# CONFIG_DRM_I915_PRELIMINARY_HW_SUPPORT is not set
# CONFIG_DRM_I915_UMS is not set
CONFIG_DRM_MGA=m
# CONFIG_DRM_SIS is not set
CONFIG_DRM_VIA=m
CONFIG_DRM_SAVAGE=m
# CONFIG_DRM_VMWGFX is not set
# CONFIG_DRM_GMA500 is not set
# CONFIG_DRM_UDL is not set
# CONFIG_DRM_AST is not set
# CONFIG_DRM_MGAG200 is not set
# CONFIG_DRM_CIRRUS_QEMU is not set
# CONFIG_DRM_QXL is not set
# CONFIG_DRM_BOCHS is not set
CONFIG_VGASTATE=m
CONFIG_VIDEO_OUTPUT_CONTROL=m
CONFIG_HDMI=y
CONFIG_FB=y
# CONFIG_FIRMWARE_EDID is not set
CONFIG_FB_DDC=m
CONFIG_FB_BOOT_VESA_SUPPORT=y
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
CONFIG_FB_SYS_FILLRECT=y
CONFIG_FB_SYS_COPYAREA=y
CONFIG_FB_SYS_IMAGEBLIT=y
# CONFIG_FB_FOREIGN_ENDIAN is not set
CONFIG_FB_SYS_FOPS=y
CONFIG_FB_DEFERRED_IO=y
# CONFIG_FB_SVGALIB is not set
# CONFIG_FB_MACMODES is not set
CONFIG_FB_BACKLIGHT=y
CONFIG_FB_MODE_HELPERS=y
CONFIG_FB_TILEBLITTING=y
#
# Frame buffer hardware drivers
#
CONFIG_FB_CIRRUS=m
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ARC is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
CONFIG_FB_VGA16=m
# CONFIG_FB_UVESA is not set
CONFIG_FB_VESA=y
CONFIG_FB_EFI=y
# CONFIG_FB_N411 is not set
# CONFIG_FB_HGA is not set
# CONFIG_FB_OPENCORES is not set
# CONFIG_FB_S1D13XXX is not set
CONFIG_FB_NVIDIA=m
CONFIG_FB_NVIDIA_I2C=y
# CONFIG_FB_NVIDIA_DEBUG is not set
CONFIG_FB_NVIDIA_BACKLIGHT=y
CONFIG_FB_RIVA=m
# CONFIG_FB_RIVA_I2C is not set
# CONFIG_FB_RIVA_DEBUG is not set
CONFIG_FB_RIVA_BACKLIGHT=y
# CONFIG_FB_I740 is not set
# CONFIG_FB_LE80578 is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
CONFIG_FB_SAVAGE=m
CONFIG_FB_SAVAGE_I2C=y
CONFIG_FB_SAVAGE_ACCEL=y
# CONFIG_FB_SIS is not set
CONFIG_FB_VIA=m
# CONFIG_FB_VIA_DIRECT_PROCFS is not set
# CONFIG_FB_VIA_X_COMPATIBILITY is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_VT8623 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_CARMINE is not set
# CONFIG_FB_TMIO is not set
CONFIG_FB_SM501=m
# CONFIG_FB_SMSCUFX is not set
# CONFIG_FB_UDL is not set
# CONFIG_FB_GOLDFISH is not set
CONFIG_FB_VIRTUAL=m
CONFIG_XEN_FBDEV_FRONTEND=y
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
# CONFIG_FB_BROADSHEET is not set
# CONFIG_FB_AUO_K190X is not set
# CONFIG_FB_SIMPLE is not set
# CONFIG_EXYNOS_VIDEO is not set
CONFIG_BACKLIGHT_LCD_SUPPORT=y
CONFIG_LCD_CLASS_DEVICE=m
CONFIG_LCD_PLATFORM=m
CONFIG_BACKLIGHT_CLASS_DEVICE=y
# CONFIG_BACKLIGHT_GENERIC is not set
# CONFIG_BACKLIGHT_APPLE is not set
# CONFIG_BACKLIGHT_SAHARA is not set
# CONFIG_BACKLIGHT_ADP8860 is not set
# CONFIG_BACKLIGHT_ADP8870 is not set
# CONFIG_BACKLIGHT_LM3630A is not set
# CONFIG_BACKLIGHT_LM3639 is not set
# CONFIG_BACKLIGHT_LP855X is not set
# CONFIG_BACKLIGHT_GPIO is not set
# CONFIG_BACKLIGHT_LV5207LP is not set
# CONFIG_BACKLIGHT_BD6107 is not set
#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
CONFIG_VGACON_SOFT_SCROLLBACK=y
CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=64
CONFIG_DUMMY_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_MONO is not set
# CONFIG_LOGO_LINUX_VGA16 is not set
CONFIG_LOGO_LINUX_CLUT224=y
CONFIG_SOUND=m
CONFIG_SOUND_OSS_CORE=y
CONFIG_SOUND_OSS_CORE_PRECLAIM=y
CONFIG_SND=m
CONFIG_SND_TIMER=m
CONFIG_SND_PCM=m
CONFIG_SND_HWDEP=m
CONFIG_SND_RAWMIDI=m
CONFIG_SND_JACK=y
CONFIG_SND_SEQUENCER=m
CONFIG_SND_SEQ_DUMMY=m
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
CONFIG_SND_PCM_OSS_PLUGINS=y
CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_HRTIMER=m
CONFIG_SND_SEQ_HRTIMER_DEFAULT=y
CONFIG_SND_DYNAMIC_MINORS=y
CONFIG_SND_MAX_CARDS=32
# CONFIG_SND_SUPPORT_OLD_API is not set
CONFIG_SND_VERBOSE_PROCFS=y
CONFIG_SND_VERBOSE_PRINTK=y
CONFIG_SND_DEBUG=y
# CONFIG_SND_DEBUG_VERBOSE is not set
CONFIG_SND_PCM_XRUN_DEBUG=y
CONFIG_SND_VMASTER=y
CONFIG_SND_KCTL_JACK=y
CONFIG_SND_DMA_SGBUF=y
CONFIG_SND_RAWMIDI_SEQ=m
CONFIG_SND_OPL3_LIB_SEQ=m
# CONFIG_SND_OPL4_LIB_SEQ is not set
# CONFIG_SND_SBAWE_SEQ is not set
CONFIG_SND_EMU10K1_SEQ=m
CONFIG_SND_MPU401_UART=m
CONFIG_SND_OPL3_LIB=m
CONFIG_SND_VX_LIB=m
CONFIG_SND_AC97_CODEC=m
CONFIG_SND_DRIVERS=y
CONFIG_SND_PCSP=m
CONFIG_SND_DUMMY=m
CONFIG_SND_ALOOP=m
CONFIG_SND_VIRMIDI=m
CONFIG_SND_MTPAV=m
# CONFIG_SND_MTS64 is not set
# CONFIG_SND_SERIAL_U16550 is not set
CONFIG_SND_MPU401=m
# CONFIG_SND_PORTMAN2X4 is not set
CONFIG_SND_AC97_POWER_SAVE=y
CONFIG_SND_AC97_POWER_SAVE_DEFAULT=5
CONFIG_SND_SB_COMMON=m
CONFIG_SND_SB16_DSP=m
CONFIG_SND_PCI=y
CONFIG_SND_AD1889=m
# CONFIG_SND_ALS300 is not set
# CONFIG_SND_ALS4000 is not set
CONFIG_SND_ALI5451=m
# CONFIG_SND_ASIHPI is not set
CONFIG_SND_ATIIXP=m
CONFIG_SND_ATIIXP_MODEM=m
CONFIG_SND_AU8810=m
CONFIG_SND_AU8820=m
CONFIG_SND_AU8830=m
# CONFIG_SND_AW2 is not set
# CONFIG_SND_AZT3328 is not set
CONFIG_SND_BT87X=m
# CONFIG_SND_BT87X_OVERCLOCK is not set
CONFIG_SND_CA0106=m
# CONFIG_SND_CMIPCI is not set
CONFIG_SND_OXYGEN_LIB=m
CONFIG_SND_OXYGEN=m
# CONFIG_SND_CS4281 is not set
CONFIG_SND_CS46XX=m
CONFIG_SND_CS46XX_NEW_DSP=y
CONFIG_SND_CS5530=m
CONFIG_SND_CS5535AUDIO=m
CONFIG_SND_CTXFI=m
CONFIG_SND_DARLA20=m
CONFIG_SND_GINA20=m
CONFIG_SND_LAYLA20=m
CONFIG_SND_DARLA24=m
CONFIG_SND_GINA24=m
CONFIG_SND_LAYLA24=m
CONFIG_SND_MONA=m
CONFIG_SND_MIA=m
CONFIG_SND_ECHO3G=m
CONFIG_SND_INDIGO=m
CONFIG_SND_INDIGOIO=m
CONFIG_SND_INDIGODJ=m
CONFIG_SND_INDIGOIOX=m
CONFIG_SND_INDIGODJX=m
CONFIG_SND_EMU10K1=m
CONFIG_SND_EMU10K1X=m
CONFIG_SND_ENS1370=m
CONFIG_SND_ENS1371=m
CONFIG_SND_ES1938=m
CONFIG_SND_ES1968=m
CONFIG_SND_ES1968_INPUT=y
CONFIG_SND_FM801=m
CONFIG_SND_HDA_INTEL=m
CONFIG_SND_HDA_PREALLOC_SIZE=64
CONFIG_SND_HDA_HWDEP=y
CONFIG_SND_HDA_RECONFIG=y
CONFIG_SND_HDA_INPUT_BEEP=y
CONFIG_SND_HDA_INPUT_BEEP_MODE=1
CONFIG_SND_HDA_INPUT_JACK=y
# CONFIG_SND_HDA_PATCH_LOADER is not set
CONFIG_SND_HDA_CODEC_REALTEK=m
CONFIG_SND_HDA_CODEC_ANALOG=m
CONFIG_SND_HDA_CODEC_SIGMATEL=m
CONFIG_SND_HDA_CODEC_VIA=m
CONFIG_SND_HDA_CODEC_HDMI=m
CONFIG_SND_HDA_I915=y
CONFIG_SND_HDA_CODEC_CIRRUS=m
CONFIG_SND_HDA_CODEC_CONEXANT=m
CONFIG_SND_HDA_CODEC_CA0110=m
CONFIG_SND_HDA_CODEC_CA0132=m
# CONFIG_SND_HDA_CODEC_CA0132_DSP is not set
CONFIG_SND_HDA_CODEC_CMEDIA=m
CONFIG_SND_HDA_CODEC_SI3054=m
CONFIG_SND_HDA_GENERIC=m
CONFIG_SND_HDA_POWER_SAVE_DEFAULT=0
CONFIG_SND_HDSP=m
CONFIG_SND_HDSPM=m
CONFIG_SND_ICE1712=m
CONFIG_SND_ICE1724=m
CONFIG_SND_INTEL8X0=m
CONFIG_SND_INTEL8X0M=m
CONFIG_SND_KORG1212=m
# CONFIG_SND_LOLA is not set
CONFIG_SND_LX6464ES=m
CONFIG_SND_MAESTRO3=m
CONFIG_SND_MAESTRO3_INPUT=y
CONFIG_SND_MIXART=m
CONFIG_SND_NM256=m
CONFIG_SND_PCXHR=m
CONFIG_SND_RIPTIDE=m
CONFIG_SND_RME32=m
CONFIG_SND_RME96=m
CONFIG_SND_RME9652=m
CONFIG_SND_SONICVIBES=m
CONFIG_SND_TRIDENT=m
CONFIG_SND_VIA82XX=m
CONFIG_SND_VIA82XX_MODEM=m
CONFIG_SND_VIRTUOSO=m
CONFIG_SND_VX222=m
CONFIG_SND_YMFPCI=m
CONFIG_SND_USB=y
CONFIG_SND_USB_AUDIO=m
CONFIG_SND_USB_UA101=m
CONFIG_SND_USB_USX2Y=m
CONFIG_SND_USB_CAIAQ=m
CONFIG_SND_USB_CAIAQ_INPUT=y
CONFIG_SND_USB_US122L=m
CONFIG_SND_USB_6FIRE=m
# CONFIG_SND_USB_HIFACE is not set
CONFIG_SND_FIREWIRE=y
CONFIG_SND_FIREWIRE_LIB=m
# CONFIG_SND_DICE is not set
CONFIG_SND_FIREWIRE_SPEAKERS=m
# CONFIG_SND_ISIGHT is not set
# CONFIG_SND_SCS1X is not set
CONFIG_SND_PCMCIA=y
CONFIG_SND_VXPOCKET=m
CONFIG_SND_PDAUDIOCF=m
# CONFIG_SND_SOC is not set
# CONFIG_SOUND_PRIME is not set
CONFIG_AC97_BUS=m
#
# HID support
#
CONFIG_HID=y
# CONFIG_HID_BATTERY_STRENGTH is not set
CONFIG_HIDRAW=y
# CONFIG_UHID is not set
CONFIG_HID_GENERIC=y
#
# Special HID drivers
#
CONFIG_HID_A4TECH=y
CONFIG_HID_ACRUX=m
# CONFIG_HID_ACRUX_FF is not set
CONFIG_HID_APPLE=y
# CONFIG_HID_APPLEIR is not set
# CONFIG_HID_AUREAL is not set
CONFIG_HID_BELKIN=y
CONFIG_HID_CHERRY=y
CONFIG_HID_CHICONY=y
CONFIG_HID_PRODIKEYS=m
CONFIG_HID_CYPRESS=y
CONFIG_HID_DRAGONRISE=y
CONFIG_DRAGONRISE_FF=y
CONFIG_HID_EMS_FF=m
CONFIG_HID_ELECOM=m
# CONFIG_HID_ELO is not set
CONFIG_HID_EZKEY=y
# CONFIG_HID_HOLTEK is not set
# CONFIG_HID_HUION is not set
CONFIG_HID_KEYTOUCH=m
CONFIG_HID_KYE=y
CONFIG_HID_UCLOGIC=m
CONFIG_HID_WALTOP=m
CONFIG_HID_GYRATION=y
# CONFIG_HID_ICADE is not set
CONFIG_HID_TWINHAN=y
CONFIG_HID_KENSINGTON=y
CONFIG_HID_LCPOWER=m
# CONFIG_HID_LENOVO_TPKBD is not set
CONFIG_HID_LOGITECH=y
# CONFIG_HID_LOGITECH_DJ is not set
CONFIG_LOGITECH_FF=y
CONFIG_LOGIRUMBLEPAD2_FF=y
CONFIG_LOGIG940_FF=y
CONFIG_LOGIWHEELS_FF=y
CONFIG_HID_MAGICMOUSE=m
CONFIG_HID_MICROSOFT=y
CONFIG_HID_MONTEREY=y
CONFIG_HID_MULTITOUCH=m
CONFIG_HID_NTRIG=y
CONFIG_HID_ORTEK=m
CONFIG_HID_PANTHERLORD=y
CONFIG_PANTHERLORD_FF=y
CONFIG_HID_PETALYNX=y
CONFIG_HID_PICOLCD=m
CONFIG_HID_PICOLCD_FB=y
CONFIG_HID_PICOLCD_BACKLIGHT=y
CONFIG_HID_PICOLCD_LCD=y
CONFIG_HID_PICOLCD_LEDS=y
# CONFIG_HID_PRIMAX is not set
CONFIG_HID_ROCCAT=m
# CONFIG_HID_SAITEK is not set
CONFIG_HID_SAMSUNG=y
CONFIG_HID_SONY=y
# CONFIG_SONY_FF is not set
# CONFIG_HID_SPEEDLINK is not set
# CONFIG_HID_STEELSERIES is not set
CONFIG_HID_SUNPLUS=y
CONFIG_HID_GREENASIA=y
CONFIG_GREENASIA_FF=y
CONFIG_HID_SMARTJOYPLUS=y
CONFIG_SMARTJOYPLUS_FF=y
# CONFIG_HID_TIVO is not set
CONFIG_HID_TOPSEED=y
# CONFIG_HID_THINGM is not set
CONFIG_HID_THRUSTMASTER=y
CONFIG_THRUSTMASTER_FF=y
CONFIG_HID_WACOM=m
# CONFIG_HID_WIIMOTE is not set
# CONFIG_HID_XINMO is not set
CONFIG_HID_ZEROPLUS=y
CONFIG_ZEROPLUS_FF=y
CONFIG_HID_ZYDACRON=m
# CONFIG_HID_SENSOR_HUB is not set
#
# USB HID support
#
CONFIG_USB_HID=y
CONFIG_HID_PID=y
CONFIG_USB_HIDDEV=y
#
# I2C HID support
#
# CONFIG_I2C_HID is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_SUPPORT=y
CONFIG_USB_COMMON=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB=y
# CONFIG_USB_DEBUG is not set
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
#
# Miscellaneous USB options
#
CONFIG_USB_DEFAULT_PERSIST=y
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_OTG is not set
CONFIG_USB_MON=y
CONFIG_USB_WUSB=m
CONFIG_USB_WUSB_CBAF=m
# CONFIG_USB_WUSB_CBAF_DEBUG is not set
#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
CONFIG_USB_XHCI_HCD=m
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_ROOT_HUB_TT=y
CONFIG_USB_EHCI_TT_NEWSCHED=y
CONFIG_USB_EHCI_PCI=y
# CONFIG_USB_EHCI_HCD_PLATFORM is not set
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_ISP1760_HCD is not set
CONFIG_USB_ISP1362_HCD=m
# CONFIG_USB_FUSBH200_HCD is not set
# CONFIG_USB_FOTG210_HCD is not set
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_OHCI_HCD_PCI=y
# CONFIG_USB_OHCI_HCD_PLATFORM is not set
CONFIG_USB_UHCI_HCD=y
CONFIG_USB_U132_HCD=m
CONFIG_USB_SL811_HCD=m
# CONFIG_USB_SL811_HCD_ISO is not set
# CONFIG_USB_SL811_CS is not set
# CONFIG_USB_R8A66597_HCD is not set
CONFIG_USB_WHCI_HCD=m
CONFIG_USB_HWA_HCD=m
# CONFIG_USB_HCD_SSB is not set
# CONFIG_USB_HCD_TEST_MODE is not set
#
# USB Device Class drivers
#
CONFIG_USB_ACM=m
CONFIG_USB_PRINTER=m
CONFIG_USB_WDM=m
CONFIG_USB_TMC=m
#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#
#
# also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=m
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_REALTEK is not set
CONFIG_USB_STORAGE_DATAFAB=m
CONFIG_USB_STORAGE_FREECOM=m
CONFIG_USB_STORAGE_ISD200=m
CONFIG_USB_STORAGE_USBAT=m
CONFIG_USB_STORAGE_SDDR09=m
CONFIG_USB_STORAGE_SDDR55=m
CONFIG_USB_STORAGE_JUMPSHOT=m
CONFIG_USB_STORAGE_ALAUDA=m
CONFIG_USB_STORAGE_ONETOUCH=m
CONFIG_USB_STORAGE_KARMA=m
CONFIG_USB_STORAGE_CYPRESS_ATACB=m
# CONFIG_USB_STORAGE_ENE_UB6250 is not set
#
# USB Imaging devices
#
CONFIG_USB_MDC800=m
CONFIG_USB_MICROTEK=m
# CONFIG_USB_MUSB_HDRC is not set
# CONFIG_USB_DWC3 is not set
# CONFIG_USB_DWC2 is not set
# CONFIG_USB_CHIPIDEA is not set
#
# USB port drivers
#
CONFIG_USB_USS720=m
CONFIG_USB_SERIAL=m
CONFIG_USB_SERIAL_GENERIC=y
# CONFIG_USB_SERIAL_SIMPLE is not set
CONFIG_USB_SERIAL_AIRCABLE=m
CONFIG_USB_SERIAL_ARK3116=m
CONFIG_USB_SERIAL_BELKIN=m
CONFIG_USB_SERIAL_CH341=m
CONFIG_USB_SERIAL_WHITEHEAT=m
CONFIG_USB_SERIAL_DIGI_ACCELEPORT=m
CONFIG_USB_SERIAL_CP210X=m
CONFIG_USB_SERIAL_CYPRESS_M8=m
CONFIG_USB_SERIAL_EMPEG=m
CONFIG_USB_SERIAL_FTDI_SIO=m
CONFIG_USB_SERIAL_VISOR=m
CONFIG_USB_SERIAL_IPAQ=m
CONFIG_USB_SERIAL_IR=m
CONFIG_USB_SERIAL_EDGEPORT=m
CONFIG_USB_SERIAL_EDGEPORT_TI=m
# CONFIG_USB_SERIAL_F81232 is not set
CONFIG_USB_SERIAL_GARMIN=m
CONFIG_USB_SERIAL_IPW=m
CONFIG_USB_SERIAL_IUU=m
CONFIG_USB_SERIAL_KEYSPAN_PDA=m
CONFIG_USB_SERIAL_KEYSPAN=m
CONFIG_USB_SERIAL_KLSI=m
CONFIG_USB_SERIAL_KOBIL_SCT=m
CONFIG_USB_SERIAL_MCT_U232=m
# CONFIG_USB_SERIAL_METRO is not set
CONFIG_USB_SERIAL_MOS7720=m
# CONFIG_USB_SERIAL_MOS7715_PARPORT is not set
CONFIG_USB_SERIAL_MOS7840=m
# CONFIG_USB_SERIAL_MXUPORT is not set
CONFIG_USB_SERIAL_NAVMAN=m
CONFIG_USB_SERIAL_PL2303=m
CONFIG_USB_SERIAL_OTI6858=m
# CONFIG_USB_SERIAL_QCAUX is not set
CONFIG_USB_SERIAL_QUALCOMM=m
CONFIG_USB_SERIAL_SPCP8X5=m
CONFIG_USB_SERIAL_SAFE=m
CONFIG_USB_SERIAL_SAFE_PADDED=y
CONFIG_USB_SERIAL_SIERRAWIRELESS=m
CONFIG_USB_SERIAL_SYMBOL=m
CONFIG_USB_SERIAL_TI=m
CONFIG_USB_SERIAL_CYBERJACK=m
CONFIG_USB_SERIAL_XIRCOM=m
CONFIG_USB_SERIAL_WWAN=m
CONFIG_USB_SERIAL_OPTION=m
CONFIG_USB_SERIAL_OMNINET=m
CONFIG_USB_SERIAL_OPTICON=m
# CONFIG_USB_SERIAL_XSENS_MT is not set
# CONFIG_USB_SERIAL_WISHBONE is not set
# CONFIG_USB_SERIAL_ZTE is not set
# CONFIG_USB_SERIAL_SSU100 is not set
# CONFIG_USB_SERIAL_QT2 is not set
CONFIG_USB_SERIAL_DEBUG=m
#
# USB Miscellaneous drivers
#
CONFIG_USB_EMI62=m
CONFIG_USB_EMI26=m
CONFIG_USB_ADUTUX=m
CONFIG_USB_SEVSEG=m
# CONFIG_USB_RIO500 is not set
CONFIG_USB_LEGOTOWER=m
CONFIG_USB_LCD=m
CONFIG_USB_LED=m
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
CONFIG_USB_IDMOUSE=m
CONFIG_USB_FTDI_ELAN=m
CONFIG_USB_APPLEDISPLAY=m
CONFIG_USB_SISUSBVGA=m
CONFIG_USB_SISUSBVGA_CON=y
CONFIG_USB_LD=m
# CONFIG_USB_TRANCEVIBRATOR is not set
CONFIG_USB_IOWARRIOR=m
# CONFIG_USB_TEST is not set
# CONFIG_USB_EHSET_TEST_FIXTURE is not set
CONFIG_USB_ISIGHTFW=m
# CONFIG_USB_YUREX is not set
CONFIG_USB_EZUSB_FX2=m
# CONFIG_USB_HSIC_USB3503 is not set
CONFIG_USB_ATM=m
CONFIG_USB_SPEEDTOUCH=m
CONFIG_USB_CXACRU=m
CONFIG_USB_UEAGLEATM=m
CONFIG_USB_XUSBATM=m
#
# USB Physical Layer drivers
#
# CONFIG_USB_PHY is not set
# CONFIG_USB_OTG_FSM is not set
# CONFIG_NOP_USB_XCEIV is not set
# CONFIG_SAMSUNG_USB2PHY is not set
# CONFIG_SAMSUNG_USB3PHY is not set
# CONFIG_USB_GPIO_VBUS is not set
# CONFIG_USB_ISP1301 is not set
# CONFIG_USB_RCAR_PHY is not set
# CONFIG_USB_GADGET is not set
CONFIG_UWB=m
CONFIG_UWB_HWA=m
CONFIG_UWB_WHCI=m
CONFIG_UWB_I1480U=m
CONFIG_MMC=m
# CONFIG_MMC_DEBUG is not set
# CONFIG_MMC_UNSAFE_RESUME is not set
# CONFIG_MMC_CLKGATE is not set
#
# MMC/SD/SDIO Card Drivers
#
CONFIG_MMC_BLOCK=m
CONFIG_MMC_BLOCK_MINORS=8
CONFIG_MMC_BLOCK_BOUNCE=y
CONFIG_SDIO_UART=m
# CONFIG_MMC_TEST is not set
#
# MMC/SD/SDIO Host Controller Drivers
#
CONFIG_MMC_SDHCI=m
CONFIG_MMC_SDHCI_PCI=m
# CONFIG_MMC_RICOH_MMC is not set
# CONFIG_MMC_SDHCI_ACPI is not set
CONFIG_MMC_SDHCI_PLTFM=m
CONFIG_MMC_WBSD=m
CONFIG_MMC_TIFM_SD=m
CONFIG_MMC_SDRICOH_CS=m
CONFIG_MMC_CB710=m
CONFIG_MMC_VIA_SDMMC=m
# CONFIG_MMC_VUB300 is not set
CONFIG_MMC_USHC=m
CONFIG_MEMSTICK=m
# CONFIG_MEMSTICK_DEBUG is not set
#
# MemoryStick drivers
#
# CONFIG_MEMSTICK_UNSAFE_RESUME is not set
CONFIG_MSPRO_BLOCK=m
# CONFIG_MS_BLOCK is not set
#
# MemoryStick Host Controller Drivers
#
CONFIG_MEMSTICK_TIFM_MS=m
CONFIG_MEMSTICK_JMICRON_38X=m
# CONFIG_MEMSTICK_R592 is not set
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
#
# LED drivers
#
# CONFIG_LEDS_LM3530 is not set
# CONFIG_LEDS_LM3642 is not set
# CONFIG_LEDS_PCA9532 is not set
# CONFIG_LEDS_GPIO is not set
CONFIG_LEDS_LP3944=m
# CONFIG_LEDS_LP5521 is not set
# CONFIG_LEDS_LP5523 is not set
# CONFIG_LEDS_LP5562 is not set
# CONFIG_LEDS_LP8501 is not set
CONFIG_LEDS_CLEVO_MAIL=m
# CONFIG_LEDS_PCA955X is not set
# CONFIG_LEDS_PCA963X is not set
# CONFIG_LEDS_PCA9685 is not set
# CONFIG_LEDS_REGULATOR is not set
# CONFIG_LEDS_BD2802 is not set
# CONFIG_LEDS_INTEL_SS4200 is not set
# CONFIG_LEDS_LT3593 is not set
# CONFIG_LEDS_DELL_NETBOOKS is not set
# CONFIG_LEDS_TCA6507 is not set
# CONFIG_LEDS_LM355x is not set
# CONFIG_LEDS_OT200 is not set
# CONFIG_LEDS_BLINKM is not set
#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_TIMER=m
# CONFIG_LEDS_TRIGGER_ONESHOT is not set
CONFIG_LEDS_TRIGGER_HEARTBEAT=m
CONFIG_LEDS_TRIGGER_BACKLIGHT=m
# CONFIG_LEDS_TRIGGER_CPU is not set
# CONFIG_LEDS_TRIGGER_GPIO is not set
CONFIG_LEDS_TRIGGER_DEFAULT_ON=m
#
# iptables trigger is under Netfilter config (LED target)
#
# CONFIG_LEDS_TRIGGER_TRANSIENT is not set
# CONFIG_LEDS_TRIGGER_CAMERA is not set
# CONFIG_ACCESSIBILITY is not set
CONFIG_INFINIBAND=m
CONFIG_INFINIBAND_USER_MAD=m
CONFIG_INFINIBAND_USER_ACCESS=m
CONFIG_INFINIBAND_USER_MEM=y
CONFIG_INFINIBAND_ADDR_TRANS=y
CONFIG_INFINIBAND_MTHCA=m
CONFIG_INFINIBAND_MTHCA_DEBUG=y
CONFIG_INFINIBAND_IPATH=m
CONFIG_INFINIBAND_QIB=m
CONFIG_INFINIBAND_QIB_DCA=y
# CONFIG_INFINIBAND_AMSO1100 is not set
CONFIG_INFINIBAND_CXGB3=m
# CONFIG_INFINIBAND_CXGB3_DEBUG is not set
CONFIG_INFINIBAND_CXGB4=m
CONFIG_MLX4_INFINIBAND=m
# CONFIG_MLX5_INFINIBAND is not set
CONFIG_INFINIBAND_NES=m
# CONFIG_INFINIBAND_NES_DEBUG is not set
# CONFIG_INFINIBAND_OCRDMA is not set
CONFIG_INFINIBAND_IPOIB=m
CONFIG_INFINIBAND_IPOIB_CM=y
CONFIG_INFINIBAND_IPOIB_DEBUG=y
# CONFIG_INFINIBAND_IPOIB_DEBUG_DATA is not set
CONFIG_INFINIBAND_SRP=m
# CONFIG_INFINIBAND_SRPT is not set
CONFIG_INFINIBAND_ISER=m
CONFIG_EDAC=y
CONFIG_EDAC_LEGACY_SYSFS=y
# CONFIG_EDAC_DEBUG is not set
CONFIG_EDAC_DECODE_MCE=m
# CONFIG_EDAC_MCE_INJ is not set
CONFIG_EDAC_MM_EDAC=m
CONFIG_EDAC_AMD64=m
# CONFIG_EDAC_AMD64_ERROR_INJECTION is not set
CONFIG_EDAC_E752X=m
CONFIG_EDAC_I82975X=m
CONFIG_EDAC_I3000=m
CONFIG_EDAC_I3200=m
CONFIG_EDAC_X38=m
CONFIG_EDAC_I5400=m
CONFIG_EDAC_I7CORE=m
CONFIG_EDAC_I5000=m
CONFIG_EDAC_I5100=m
CONFIG_EDAC_I7300=m
# CONFIG_EDAC_SBRIDGE is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_SYSTOHC=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set
#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set
#
# I2C RTC drivers
#
CONFIG_RTC_DRV_DS1307=m
CONFIG_RTC_DRV_DS1374=m
CONFIG_RTC_DRV_DS1672=m
# CONFIG_RTC_DRV_DS3232 is not set
CONFIG_RTC_DRV_MAX6900=m
CONFIG_RTC_DRV_RS5C372=m
CONFIG_RTC_DRV_ISL1208=m
# CONFIG_RTC_DRV_ISL12022 is not set
# CONFIG_RTC_DRV_ISL12057 is not set
CONFIG_RTC_DRV_X1205=m
# CONFIG_RTC_DRV_PCF2127 is not set
# CONFIG_RTC_DRV_PCF8523 is not set
CONFIG_RTC_DRV_PCF8563=m
CONFIG_RTC_DRV_PCF8583=m
CONFIG_RTC_DRV_M41T80=m
CONFIG_RTC_DRV_M41T80_WDT=y
# CONFIG_RTC_DRV_BQ32K is not set
# CONFIG_RTC_DRV_S35390A is not set
CONFIG_RTC_DRV_FM3130=m
CONFIG_RTC_DRV_RX8581=m
CONFIG_RTC_DRV_RX8025=m
# CONFIG_RTC_DRV_EM3027 is not set
# CONFIG_RTC_DRV_RV3029C2 is not set
#
# SPI RTC drivers
#
#
# Platform RTC drivers
#
CONFIG_RTC_DRV_CMOS=y
CONFIG_RTC_DRV_DS1286=m
CONFIG_RTC_DRV_DS1511=m
CONFIG_RTC_DRV_DS1553=m
CONFIG_RTC_DRV_DS1742=m
CONFIG_RTC_DRV_STK17TA8=m
# CONFIG_RTC_DRV_M48T86 is not set
CONFIG_RTC_DRV_M48T35=m
CONFIG_RTC_DRV_M48T59=m
# CONFIG_RTC_DRV_MSM6242 is not set
CONFIG_RTC_DRV_BQ4802=m
# CONFIG_RTC_DRV_RP5C01 is not set
CONFIG_RTC_DRV_V3020=m
# CONFIG_RTC_DRV_DS2404 is not set
#
# on-CPU RTC drivers
#
# CONFIG_RTC_DRV_MOXART is not set
#
# HID Sensor RTC drivers
#
# CONFIG_RTC_DRV_HID_SENSOR_TIME is not set
CONFIG_DMADEVICES=y
# CONFIG_DMADEVICES_DEBUG is not set
#
# DMA Devices
#
# CONFIG_INTEL_MID_DMAC is not set
CONFIG_INTEL_IOATDMA=m
# CONFIG_DW_DMAC_CORE is not set
# CONFIG_DW_DMAC is not set
# CONFIG_DW_DMAC_PCI is not set
# CONFIG_TIMB_DMA is not set
# CONFIG_PCH_DMA is not set
CONFIG_DMA_ENGINE=y
CONFIG_DMA_ACPI=y
#
# DMA Clients
#
CONFIG_ASYNC_TX_DMA=y
# CONFIG_DMATEST is not set
CONFIG_DMA_ENGINE_RAID=y
CONFIG_DCA=m
CONFIG_AUXDISPLAY=y
CONFIG_KS0108=m
CONFIG_KS0108_PORT=0x378
CONFIG_KS0108_DELAY=2
CONFIG_CFAG12864B=m
CONFIG_CFAG12864B_RATE=20
CONFIG_UIO=m
CONFIG_UIO_CIF=m
CONFIG_UIO_PDRV_GENIRQ=m
# CONFIG_UIO_DMEM_GENIRQ is not set
CONFIG_UIO_AEC=m
CONFIG_UIO_SERCOS3=m
CONFIG_UIO_PCI_GENERIC=m
# CONFIG_UIO_NETX is not set
# CONFIG_UIO_MF624 is not set
# CONFIG_VFIO is not set
# CONFIG_VIRT_DRIVERS is not set
CONFIG_VIRTIO=m
#
# Virtio drivers
#
CONFIG_VIRTIO_PCI=m
CONFIG_VIRTIO_BALLOON=m
# CONFIG_VIRTIO_MMIO is not set
#
# Microsoft Hyper-V guest support
#
# CONFIG_HYPERV is not set
#
# Xen driver support
#
CONFIG_XEN_BALLOON=y
# CONFIG_XEN_SELFBALLOONING is not set
# CONFIG_XEN_BALLOON_MEMORY_HOTPLUG is not set
CONFIG_XEN_SCRUB_PAGES=y
CONFIG_XEN_DEV_EVTCHN=y
CONFIG_XEN_BACKEND=y
CONFIG_XENFS=y
CONFIG_XEN_COMPAT_XENFS=y
CONFIG_XEN_SYS_HYPERVISOR=y
CONFIG_XEN_XENBUS_FRONTEND=y
CONFIG_XEN_GNTDEV=y
CONFIG_XEN_GRANT_DEV_ALLOC=m
CONFIG_SWIOTLB_XEN=y
CONFIG_XEN_TMEM=m
CONFIG_XEN_PCIDEV_BACKEND=m
CONFIG_XEN_PRIVCMD=y
CONFIG_XEN_ACPI_PROCESSOR=m
# CONFIG_XEN_MCE_LOG is not set
CONFIG_XEN_HAVE_PVMMU=y
CONFIG_STAGING=y
# CONFIG_ET131X is not set
# CONFIG_SLICOSS is not set
# CONFIG_USBIP_CORE is not set
# CONFIG_W35UND is not set
# CONFIG_PRISM2_USB is not set
# CONFIG_ECHO is not set
# CONFIG_COMEDI is not set
# CONFIG_PANEL is not set
# CONFIG_R8187SE is not set
# CONFIG_RTL8192U is not set
# CONFIG_RTLLIB is not set
# CONFIG_R8712U is not set
# CONFIG_R8188EU is not set
# CONFIG_R8821AE is not set
# CONFIG_RTS5139 is not set
# CONFIG_RTS5208 is not set
# CONFIG_TRANZPORT is not set
# CONFIG_IDE_PHISON is not set
# CONFIG_LINE6_USB is not set
# CONFIG_USB_SERIAL_QUATECH2 is not set
# CONFIG_VT6655 is not set
# CONFIG_VT6656 is not set
# CONFIG_DX_SEP is not set
# CONFIG_WLAGS49_H2 is not set
# CONFIG_WLAGS49_H25 is not set
# CONFIG_FB_SM7XX is not set
# CONFIG_CRYSTALHD is not set
# CONFIG_CXT1E1 is not set
# CONFIG_FB_XGI is not set
# CONFIG_ACPI_QUICKSTART is not set
# CONFIG_SBE_2T3E3 is not set
# CONFIG_USB_ENESTORAGE is not set
# CONFIG_BCM_WIMAX is not set
# CONFIG_FT1000 is not set
#
# Speakup console speech
#
# CONFIG_SPEAKUP is not set
# CONFIG_TOUCHSCREEN_CLEARPAD_TM1217 is not set
# CONFIG_TOUCHSCREEN_SYNAPTICS_I2C_RMI4 is not set
# CONFIG_STAGING_MEDIA is not set
#
# Android
#
# CONFIG_ANDROID is not set
# CONFIG_USB_WPAN_HCD is not set
# CONFIG_WIMAX_GDM72XX is not set
# CONFIG_LTE_GDM724X is not set
CONFIG_NET_VENDOR_SILICOM=y
# CONFIG_SBYPASS is not set
# CONFIG_BPCTL is not set
# CONFIG_CED1401 is not set
# CONFIG_DGRP is not set
# CONFIG_FIREWIRE_SERIAL is not set
# CONFIG_LUSTRE_FS is not set
# CONFIG_XILLYBUS is not set
# CONFIG_DGNC is not set
# CONFIG_DGAP is not set
CONFIG_X86_PLATFORM_DEVICES=y
CONFIG_ACER_WMI=m
CONFIG_ACERHDF=m
CONFIG_ASUS_LAPTOP=m
CONFIG_DELL_LAPTOP=m
CONFIG_DELL_WMI=m
# CONFIG_DELL_WMI_AIO is not set
CONFIG_FUJITSU_LAPTOP=m
# CONFIG_FUJITSU_LAPTOP_DEBUG is not set
# CONFIG_FUJITSU_TABLET is not set
# CONFIG_AMILO_RFKILL is not set
# CONFIG_HP_ACCEL is not set
# CONFIG_HP_WIRELESS is not set
CONFIG_HP_WMI=m
CONFIG_MSI_LAPTOP=m
CONFIG_PANASONIC_LAPTOP=m
CONFIG_COMPAL_LAPTOP=m
CONFIG_SONY_LAPTOP=m
CONFIG_SONYPI_COMPAT=y
# CONFIG_IDEAPAD_LAPTOP is not set
CONFIG_THINKPAD_ACPI=m
CONFIG_THINKPAD_ACPI_ALSA_SUPPORT=y
# CONFIG_THINKPAD_ACPI_DEBUGFACILITIES is not set
# CONFIG_THINKPAD_ACPI_DEBUG is not set
# CONFIG_THINKPAD_ACPI_UNSAFE_LEDS is not set
CONFIG_THINKPAD_ACPI_VIDEO=y
CONFIG_THINKPAD_ACPI_HOTKEY_POLL=y
CONFIG_SENSORS_HDAPS=m
# CONFIG_INTEL_MENLOW is not set
# CONFIG_EEEPC_LAPTOP is not set
# CONFIG_ASUS_WMI is not set
CONFIG_ACPI_WMI=m
CONFIG_MSI_WMI=m
# CONFIG_TOPSTAR_LAPTOP is not set
CONFIG_ACPI_TOSHIBA=m
CONFIG_TOSHIBA_BT_RFKILL=m
CONFIG_ACPI_CMPC=m
CONFIG_INTEL_IPS=m
CONFIG_IBM_RTL=m
CONFIG_XO15_EBOOK=m
CONFIG_SAMSUNG_LAPTOP=m
CONFIG_MXM_WMI=m
# CONFIG_INTEL_OAKTRAIL is not set
# CONFIG_SAMSUNG_Q10 is not set
# CONFIG_APPLE_GMUX is not set
# CONFIG_INTEL_RST is not set
# CONFIG_INTEL_SMARTCONNECT is not set
# CONFIG_PVPANIC is not set
# CONFIG_CHROME_PLATFORMS is not set
#
# Hardware Spinlock drivers
#
CONFIG_CLKEVT_I8253=y
CONFIG_I8253_LOCK=y
CONFIG_CLKBLD_I8253=y
# CONFIG_MAILBOX is not set
CONFIG_IOMMU_API=y
CONFIG_IOMMU_SUPPORT=y
CONFIG_AMD_IOMMU=y
CONFIG_AMD_IOMMU_STATS=y
# CONFIG_AMD_IOMMU_V2 is not set
# CONFIG_INTEL_IOMMU is not set
# CONFIG_IRQ_REMAP is not set
#
# Remoteproc drivers
#
# CONFIG_STE_MODEM_RPROC is not set
#
# Rpmsg drivers
#
# CONFIG_PM_DEVFREQ is not set
# CONFIG_EXTCON is not set
# CONFIG_MEMORY is not set
# CONFIG_IIO is not set
# CONFIG_NTB is not set
# CONFIG_VME_BUS is not set
# CONFIG_PWM is not set
# CONFIG_IPACK_BUS is not set
CONFIG_RESET_CONTROLLER=y
# CONFIG_FMC is not set
#
# PHY Subsystem
#
CONFIG_GENERIC_PHY=y
# CONFIG_PHY_EXYNOS_MIPI_VIDEO is not set
# CONFIG_BCM_KONA_USB2_PHY is not set
# CONFIG_POWERCAP is not set
#
# Firmware Drivers
#
CONFIG_EDD=m
# CONFIG_EDD_OFF is not set
CONFIG_FIRMWARE_MEMMAP=y
CONFIG_DELL_RBU=m
CONFIG_DCDBAS=m
CONFIG_DMIID=y
CONFIG_DMI_SYSFS=m
CONFIG_DMI_SCAN_MACHINE_NON_EFI_FALLBACK=y
CONFIG_ISCSI_IBFT_FIND=y
CONFIG_ISCSI_IBFT=m
# CONFIG_GOOGLE_FIRMWARE is not set
#
# EFI (Extensible Firmware Interface) Support
#
CONFIG_EFI_VARS=y
CONFIG_EFI_VARS_PSTORE=y
# CONFIG_EFI_VARS_PSTORE_DEFAULT_DISABLE is not set
CONFIG_EFI_RUNTIME_MAP=y
CONFIG_UEFI_CPER=y
#
# File systems
#
CONFIG_DCACHE_WORD_ACCESS=y
CONFIG_EXT2_FS=m
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y
CONFIG_EXT2_FS_XIP=y
CONFIG_EXT3_FS=m
CONFIG_EXT3_DEFAULTS_TO_ORDERED=y
CONFIG_EXT3_FS_XATTR=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
CONFIG_EXT4_FS=m
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
# CONFIG_EXT4_DEBUG is not set
CONFIG_FS_XIP=y
CONFIG_JBD=m
# CONFIG_JBD_DEBUG is not set
CONFIG_JBD2=m
CONFIG_JBD2_DEBUG=y
CONFIG_FS_MBCACHE=m
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
CONFIG_XFS_FS=m
CONFIG_XFS_QUOTA=y
CONFIG_XFS_POSIX_ACL=y
# CONFIG_XFS_RT is not set
# CONFIG_XFS_WARN is not set
# CONFIG_XFS_DEBUG is not set
CONFIG_GFS2_FS=m
CONFIG_GFS2_FS_LOCKING_DLM=y
CONFIG_OCFS2_FS=m
CONFIG_OCFS2_FS_O2CB=m
CONFIG_OCFS2_FS_USERSPACE_CLUSTER=m
CONFIG_OCFS2_FS_STATS=y
CONFIG_OCFS2_DEBUG_MASKLOG=y
# CONFIG_OCFS2_DEBUG_FS is not set
CONFIG_BTRFS_FS=m
CONFIG_BTRFS_FS_POSIX_ACL=y
# CONFIG_BTRFS_FS_CHECK_INTEGRITY is not set
# CONFIG_BTRFS_FS_RUN_SANITY_TESTS is not set
# CONFIG_BTRFS_DEBUG is not set
# CONFIG_BTRFS_ASSERT is not set
# CONFIG_NILFS2_FS is not set
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=y
CONFIG_FILE_LOCKING=y
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_FANOTIFY=y
CONFIG_FANOTIFY_ACCESS_PERMISSIONS=y
CONFIG_QUOTA=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
CONFIG_PRINT_QUOTA_WARNING=y
# CONFIG_QUOTA_DEBUG is not set
CONFIG_QUOTA_TREE=y
# CONFIG_QFMT_V1 is not set
CONFIG_QFMT_V2=y
CONFIG_QUOTACTL=y
CONFIG_QUOTACTL_COMPAT=y
CONFIG_AUTOFS4_FS=y
CONFIG_FUSE_FS=m
CONFIG_CUSE=m
#
# Caches
#
CONFIG_FSCACHE=m
CONFIG_FSCACHE_STATS=y
# CONFIG_FSCACHE_HISTOGRAM is not set
# CONFIG_FSCACHE_DEBUG is not set
# CONFIG_FSCACHE_OBJECT_LIST is not set
CONFIG_CACHEFILES=m
# CONFIG_CACHEFILES_DEBUG is not set
# CONFIG_CACHEFILES_HISTOGRAM is not set
#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
CONFIG_UDF_FS=m
CONFIG_UDF_NLS=y
#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="ascii"
# CONFIG_NTFS_FS is not set
#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_VMCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_TMPFS_XATTR=y
CONFIG_HUGETLBFS=y
CONFIG_HUGETLB_PAGE=y
CONFIG_CONFIGFS_FS=m
CONFIG_MISC_FILESYSTEMS=y
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
CONFIG_ECRYPT_FS=m
# CONFIG_ECRYPT_FS_MESSAGING is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
CONFIG_JFFS2_FS=m
CONFIG_JFFS2_FS_DEBUG=0
CONFIG_JFFS2_FS_WRITEBUFFER=y
# CONFIG_JFFS2_FS_WBUF_VERIFY is not set
CONFIG_JFFS2_SUMMARY=y
CONFIG_JFFS2_FS_XATTR=y
CONFIG_JFFS2_FS_POSIX_ACL=y
CONFIG_JFFS2_FS_SECURITY=y
# CONFIG_JFFS2_COMPRESSION_OPTIONS is not set
CONFIG_JFFS2_ZLIB=y
# CONFIG_JFFS2_LZO is not set
CONFIG_JFFS2_RTIME=y
# CONFIG_JFFS2_RUBIN is not set
CONFIG_UBIFS_FS=m
# CONFIG_UBIFS_FS_ADVANCED_COMPR is not set
CONFIG_UBIFS_FS_LZO=y
CONFIG_UBIFS_FS_ZLIB=y
# CONFIG_LOGFS is not set
CONFIG_CRAMFS=m
CONFIG_SQUASHFS=m
CONFIG_SQUASHFS_FILE_CACHE=y
# CONFIG_SQUASHFS_FILE_DIRECT is not set
CONFIG_SQUASHFS_DECOMP_SINGLE=y
# CONFIG_SQUASHFS_DECOMP_MULTI is not set
# CONFIG_SQUASHFS_DECOMP_MULTI_PERCPU is not set
# CONFIG_SQUASHFS_XATTR is not set
CONFIG_SQUASHFS_ZLIB=y
# CONFIG_SQUASHFS_LZO is not set
# CONFIG_SQUASHFS_XZ is not set
# CONFIG_SQUASHFS_4K_DEVBLK_SIZE is not set
# CONFIG_SQUASHFS_EMBEDDED is not set
CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE=3
# CONFIG_VXFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX6FS_FS is not set
# CONFIG_ROMFS_FS is not set
CONFIG_PSTORE=y
# CONFIG_PSTORE_CONSOLE is not set
# CONFIG_PSTORE_FTRACE is not set
# CONFIG_PSTORE_RAM is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
# CONFIG_EXOFS_FS is not set
# CONFIG_F2FS_FS is not set
# CONFIG_EFIVAR_FS is not set
CONFIG_ORE=m
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=m
CONFIG_NFS_V2=m
CONFIG_NFS_V3=m
CONFIG_NFS_V3_ACL=y
CONFIG_NFS_V4=m
# CONFIG_NFS_SWAP is not set
CONFIG_NFS_V4_1=y
# CONFIG_NFS_V4_2 is not set
CONFIG_PNFS_FILE_LAYOUT=m
CONFIG_PNFS_BLOCK=m
CONFIG_PNFS_OBJLAYOUT=m
CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN="kernel.org"
# CONFIG_NFS_V4_1_MIGRATION is not set
CONFIG_NFS_FSCACHE=y
CONFIG_NFS_USE_LEGACY_DNS=y
CONFIG_NFSD=m
CONFIG_NFSD_V2_ACL=y
CONFIG_NFSD_V3=y
CONFIG_NFSD_V3_ACL=y
CONFIG_NFSD_V4=y
# CONFIG_NFSD_V4_SECURITY_LABEL is not set
# CONFIG_NFSD_FAULT_INJECTION is not set
CONFIG_LOCKD=m
CONFIG_LOCKD_V4=y
CONFIG_NFS_ACL_SUPPORT=m
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=m
CONFIG_SUNRPC_GSS=m
CONFIG_SUNRPC_BACKCHANNEL=y
CONFIG_SUNRPC_XPRT_RDMA=m
CONFIG_RPCSEC_GSS_KRB5=m
# CONFIG_SUNRPC_DEBUG is not set
# CONFIG_CEPH_FS is not set
CONFIG_CIFS=m
CONFIG_CIFS_STATS=y
# CONFIG_CIFS_STATS2 is not set
CONFIG_CIFS_WEAK_PW_HASH=y
CONFIG_CIFS_UPCALL=y
CONFIG_CIFS_XATTR=y
CONFIG_CIFS_POSIX=y
CONFIG_CIFS_ACL=y
CONFIG_CIFS_DEBUG=y
# CONFIG_CIFS_DEBUG2 is not set
CONFIG_CIFS_DFS_UPCALL=y
# CONFIG_CIFS_SMB2 is not set
# CONFIG_CIFS_FSCACHE is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
# CONFIG_9P_FS is not set
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="utf8"
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_737=m
CONFIG_NLS_CODEPAGE_775=m
CONFIG_NLS_CODEPAGE_850=m
CONFIG_NLS_CODEPAGE_852=m
CONFIG_NLS_CODEPAGE_855=m
CONFIG_NLS_CODEPAGE_857=m
CONFIG_NLS_CODEPAGE_860=m
CONFIG_NLS_CODEPAGE_861=m
CONFIG_NLS_CODEPAGE_862=m
CONFIG_NLS_CODEPAGE_863=m
CONFIG_NLS_CODEPAGE_864=m
CONFIG_NLS_CODEPAGE_865=m
CONFIG_NLS_CODEPAGE_866=m
CONFIG_NLS_CODEPAGE_869=m
CONFIG_NLS_CODEPAGE_936=m
CONFIG_NLS_CODEPAGE_950=m
CONFIG_NLS_CODEPAGE_932=m
CONFIG_NLS_CODEPAGE_949=m
CONFIG_NLS_CODEPAGE_874=m
CONFIG_NLS_ISO8859_8=m
CONFIG_NLS_CODEPAGE_1250=m
CONFIG_NLS_CODEPAGE_1251=m
CONFIG_NLS_ASCII=y
CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_ISO8859_2=m
CONFIG_NLS_ISO8859_3=m
CONFIG_NLS_ISO8859_4=m
CONFIG_NLS_ISO8859_5=m
CONFIG_NLS_ISO8859_6=m
CONFIG_NLS_ISO8859_7=m
CONFIG_NLS_ISO8859_9=m
CONFIG_NLS_ISO8859_13=m
CONFIG_NLS_ISO8859_14=m
CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
# CONFIG_NLS_MAC_ROMAN is not set
# CONFIG_NLS_MAC_CELTIC is not set
# CONFIG_NLS_MAC_CENTEURO is not set
# CONFIG_NLS_MAC_CROATIAN is not set
# CONFIG_NLS_MAC_CYRILLIC is not set
# CONFIG_NLS_MAC_GAELIC is not set
# CONFIG_NLS_MAC_GREEK is not set
# CONFIG_NLS_MAC_ICELAND is not set
# CONFIG_NLS_MAC_INUIT is not set
# CONFIG_NLS_MAC_ROMANIAN is not set
# CONFIG_NLS_MAC_TURKISH is not set
CONFIG_NLS_UTF8=m
CONFIG_DLM=m
CONFIG_DLM_DEBUG=y
#
# Kernel hacking
#
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
#
# printk and dmesg options
#
# CONFIG_PRINTK_TIME is not set
CONFIG_DEFAULT_MESSAGE_LOGLEVEL=4
CONFIG_BOOT_PRINTK_DELAY=y
CONFIG_DYNAMIC_DEBUG=y
#
# Compile-time checks and compiler options
#
CONFIG_DEBUG_INFO=y
# CONFIG_DEBUG_INFO_REDUCED is not set
# CONFIG_ENABLE_WARN_DEPRECATED is not set
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=2048
CONFIG_STRIP_ASM_SYMS=y
# CONFIG_READABLE_ASM is not set
# CONFIG_UNUSED_SYMBOLS is not set
CONFIG_DEBUG_FS=y
CONFIG_HEADERS_CHECK=y
CONFIG_DEBUG_SECTION_MISMATCH=y
CONFIG_ARCH_WANT_FRAME_POINTERS=y
CONFIG_FRAME_POINTER=y
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0x1
CONFIG_DEBUG_KERNEL=y
#
# Memory Debugging
#
# CONFIG_DEBUG_PAGEALLOC is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_DEBUG_SLAB is not set
CONFIG_HAVE_DEBUG_KMEMLEAK=y
# CONFIG_DEBUG_KMEMLEAK is not set
# CONFIG_DEBUG_STACK_USAGE is not set
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_VIRTUAL is not set
CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_DEBUG_PER_CPU_MAPS is not set
CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
# CONFIG_DEBUG_STACKOVERFLOW is not set
CONFIG_HAVE_ARCH_KMEMCHECK=y
CONFIG_DEBUG_SHIRQ=y
#
# Debug Lockups and Hangs
#
CONFIG_LOCKUP_DETECTOR=y
CONFIG_HARDLOCKUP_DETECTOR=y
# CONFIG_BOOTPARAM_HARDLOCKUP_PANIC is not set
CONFIG_BOOTPARAM_HARDLOCKUP_PANIC_VALUE=0
# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0
CONFIG_DETECT_HUNG_TASK=y
CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=120
# CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set
CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=0
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_PANIC_TIMEOUT=0
CONFIG_SCHED_DEBUG=y
CONFIG_SCHEDSTATS=y
CONFIG_TIMER_STATS=y
#
# Lock Debugging (spinlocks, mutexes, etc...)
#
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_RT_MUTEX_TESTER is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
# CONFIG_DEBUG_WW_MUTEX_SLOWPATH is not set
# CONFIG_DEBUG_LOCK_ALLOC is not set
# CONFIG_PROVE_LOCKING is not set
# CONFIG_LOCK_STAT is not set
# CONFIG_DEBUG_ATOMIC_SLEEP is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
CONFIG_STACKTRACE=y
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_WRITECOUNT is not set
CONFIG_DEBUG_LIST=y
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_DEBUG_CREDENTIALS is not set
#
# RCU Debugging
#
# CONFIG_SPARSE_RCU_POINTER is not set
# CONFIG_RCU_TORTURE_TEST is not set
CONFIG_RCU_CPU_STALL_TIMEOUT=60
# CONFIG_RCU_CPU_STALL_INFO is not set
# CONFIG_RCU_TRACE is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_NOTIFIER_ERROR_INJECTION is not set
# CONFIG_FAULT_INJECTION is not set
CONFIG_LATENCYTOP=y
CONFIG_ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS=y
# CONFIG_DEBUG_STRICT_USER_COPY_CHECKS is not set
CONFIG_USER_STACKTRACE_SUPPORT=y
CONFIG_NOP_TRACER=y
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_FP_TEST=y
CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HAVE_FENTRY=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_TRACER_MAX_TRACE=y
CONFIG_TRACE_CLOCK=y
CONFIG_RING_BUFFER=y
CONFIG_EVENT_TRACING=y
CONFIG_CONTEXT_SWITCH_TRACER=y
CONFIG_RING_BUFFER_ALLOW_SWAP=y
CONFIG_TRACING=y
CONFIG_GENERIC_TRACER=y
CONFIG_TRACING_SUPPORT=y
CONFIG_FTRACE=y
CONFIG_FUNCTION_TRACER=y
CONFIG_FUNCTION_GRAPH_TRACER=y
# CONFIG_IRQSOFF_TRACER is not set
CONFIG_SCHED_TRACER=y
CONFIG_FTRACE_SYSCALLS=y
CONFIG_TRACER_SNAPSHOT=y
# CONFIG_TRACER_SNAPSHOT_PER_CPU_SWAP is not set
CONFIG_BRANCH_PROFILE_NONE=y
# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
# CONFIG_PROFILE_ALL_BRANCHES is not set
CONFIG_STACK_TRACER=y
CONFIG_BLK_DEV_IO_TRACE=y
CONFIG_KPROBE_EVENT=y
# CONFIG_UPROBE_EVENT is not set
CONFIG_PROBE_EVENTS=y
CONFIG_DYNAMIC_FTRACE=y
CONFIG_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_FUNCTION_PROFILER=y
CONFIG_FTRACE_MCOUNT_RECORD=y
# CONFIG_FTRACE_STARTUP_TEST is not set
# CONFIG_MMIOTRACE is not set
CONFIG_RING_BUFFER_BENCHMARK=m
# CONFIG_RING_BUFFER_STARTUP_TEST is not set
#
# Runtime Testing
#
# CONFIG_LKDTM is not set
# CONFIG_TEST_LIST_SORT is not set
# CONFIG_KPROBES_SANITY_TEST is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_RBTREE_TEST is not set
# CONFIG_INTERVAL_TREE_TEST is not set
# CONFIG_PERCPU_TEST is not set
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_ASYNC_RAID6_TEST is not set
# CONFIG_TEST_STRING_HELPERS is not set
# CONFIG_TEST_KSTRTOX is not set
CONFIG_PROVIDE_OHCI1394_DMA_INIT=y
CONFIG_BUILD_DOCSRC=y
# CONFIG_DMA_API_DEBUG is not set
# CONFIG_TEST_MODULE is not set
# CONFIG_TEST_USER_COPY is not set
# CONFIG_SAMPLES is not set
CONFIG_HAVE_ARCH_KGDB=y
CONFIG_KGDB=y
CONFIG_KGDB_SERIAL_CONSOLE=y
CONFIG_KGDB_TESTS=y
# CONFIG_KGDB_TESTS_ON_BOOT is not set
# CONFIG_KGDB_LOW_LEVEL_TRAP is not set
# CONFIG_KGDB_KDB is not set
CONFIG_STRICT_DEVMEM=y
# CONFIG_X86_VERBOSE_BOOTUP is not set
CONFIG_EARLY_PRINTK=y
CONFIG_EARLY_PRINTK_DBGP=y
# CONFIG_EARLY_PRINTK_EFI is not set
# CONFIG_X86_PTDUMP is not set
# CONFIG_DEBUG_RODATA is not set
# CONFIG_DEBUG_SET_MODULE_RONX is not set
CONFIG_DEBUG_NX_TEST=m
CONFIG_DOUBLEFAULT=y
# CONFIG_DEBUG_TLBFLUSH is not set
# CONFIG_IOMMU_DEBUG is not set
# CONFIG_IOMMU_STRESS is not set
CONFIG_HAVE_MMIOTRACE_SUPPORT=y
# CONFIG_X86_DECODER_SELFTEST is not set
CONFIG_IO_DELAY_TYPE_0X80=0
CONFIG_IO_DELAY_TYPE_0XED=1
CONFIG_IO_DELAY_TYPE_UDELAY=2
CONFIG_IO_DELAY_TYPE_NONE=3
CONFIG_IO_DELAY_0X80=y
# CONFIG_IO_DELAY_0XED is not set
# CONFIG_IO_DELAY_UDELAY is not set
# CONFIG_IO_DELAY_NONE is not set
CONFIG_DEFAULT_IO_DELAY_TYPE=0
CONFIG_DEBUG_BOOT_PARAMS=y
# CONFIG_CPA_DEBUG is not set
CONFIG_OPTIMIZE_INLINING=y
# CONFIG_DEBUG_NMI_SELFTEST is not set
# CONFIG_X86_DEBUG_STATIC_CPU_HAS is not set
#
# Security options
#
CONFIG_KEYS=y
# CONFIG_PERSISTENT_KEYRINGS is not set
# CONFIG_BIG_KEYS is not set
# CONFIG_TRUSTED_KEYS is not set
# CONFIG_ENCRYPTED_KEYS is not set
CONFIG_KEYS_DEBUG_PROC_KEYS=y
# CONFIG_SECURITY_DMESG_RESTRICT is not set
CONFIG_SECURITY=y
CONFIG_SECURITYFS=y
CONFIG_SECURITY_NETWORK=y
CONFIG_SECURITY_NETWORK_XFRM=y
# CONFIG_SECURITY_PATH is not set
CONFIG_LSM_MMAP_MIN_ADDR=65535
CONFIG_SECURITY_SELINUX=y
CONFIG_SECURITY_SELINUX_BOOTPARAM=y
CONFIG_SECURITY_SELINUX_BOOTPARAM_VALUE=1
CONFIG_SECURITY_SELINUX_DISABLE=y
CONFIG_SECURITY_SELINUX_DEVELOP=y
CONFIG_SECURITY_SELINUX_AVC_STATS=y
CONFIG_SECURITY_SELINUX_CHECKREQPROT_VALUE=1
# CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX is not set
# CONFIG_SECURITY_SMACK is not set
# CONFIG_SECURITY_TOMOYO is not set
# CONFIG_SECURITY_APPARMOR is not set
# CONFIG_SECURITY_YAMA is not set
CONFIG_INTEGRITY=y
# CONFIG_INTEGRITY_SIGNATURE is not set
CONFIG_INTEGRITY_AUDIT=y
CONFIG_IMA=y
CONFIG_IMA_MEASURE_PCR_IDX=10
CONFIG_IMA_LSM_RULES=y
# CONFIG_IMA_TEMPLATE is not set
CONFIG_IMA_NG_TEMPLATE=y
# CONFIG_IMA_SIG_TEMPLATE is not set
CONFIG_IMA_DEFAULT_TEMPLATE="ima-ng"
CONFIG_IMA_DEFAULT_HASH_SHA1=y
# CONFIG_IMA_DEFAULT_HASH_SHA256 is not set
# CONFIG_IMA_DEFAULT_HASH_SHA512 is not set
# CONFIG_IMA_DEFAULT_HASH_WP512 is not set
CONFIG_IMA_DEFAULT_HASH="sha1"
# CONFIG_IMA_APPRAISE is not set
# CONFIG_EVM is not set
CONFIG_DEFAULT_SECURITY_SELINUX=y
# CONFIG_DEFAULT_SECURITY_DAC is not set
CONFIG_DEFAULT_SECURITY="selinux"
CONFIG_XOR_BLOCKS=m
CONFIG_ASYNC_CORE=m
CONFIG_ASYNC_MEMCPY=m
CONFIG_ASYNC_XOR=m
CONFIG_ASYNC_PQ=m
CONFIG_ASYNC_RAID6_RECOV=m
CONFIG_CRYPTO=y
#
# Crypto core or helper
#
CONFIG_CRYPTO_FIPS=y
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=m
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=m
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=m
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_PCOMP=m
CONFIG_CRYPTO_PCOMP2=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
# CONFIG_CRYPTO_USER is not set
# CONFIG_CRYPTO_MANAGER_DISABLE_TESTS is not set
CONFIG_CRYPTO_GF128MUL=m
CONFIG_CRYPTO_NULL=m
# CONFIG_CRYPTO_PCRYPT is not set
CONFIG_CRYPTO_WORKQUEUE=y
CONFIG_CRYPTO_CRYPTD=m
CONFIG_CRYPTO_AUTHENC=m
CONFIG_CRYPTO_TEST=m
CONFIG_CRYPTO_ABLK_HELPER=m
CONFIG_CRYPTO_GLUE_HELPER_X86=m
#
# Authenticated Encryption with Associated Data
#
CONFIG_CRYPTO_CCM=m
CONFIG_CRYPTO_GCM=m
CONFIG_CRYPTO_SEQIV=m
#
# Block modes
#
CONFIG_CRYPTO_CBC=m
CONFIG_CRYPTO_CTR=m
CONFIG_CRYPTO_CTS=m
CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_LRW=m
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_XTS=m
#
# Hash modes
#
CONFIG_CRYPTO_CMAC=m
CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m
#
# Digest
#
CONFIG_CRYPTO_CRC32C=y
CONFIG_CRYPTO_CRC32C_INTEL=m
# CONFIG_CRYPTO_CRC32 is not set
# CONFIG_CRYPTO_CRC32_PCLMUL is not set
CONFIG_CRYPTO_CRCT10DIF=m
# CONFIG_CRYPTO_CRCT10DIF_PCLMUL is not set
CONFIG_CRYPTO_GHASH=m
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD128=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_RMD256=m
CONFIG_CRYPTO_RMD320=m
CONFIG_CRYPTO_SHA1=y
# CONFIG_CRYPTO_SHA1_SSSE3 is not set
# CONFIG_CRYPTO_SHA256_SSSE3 is not set
# CONFIG_CRYPTO_SHA512_SSSE3 is not set
CONFIG_CRYPTO_SHA256=m
CONFIG_CRYPTO_SHA512=m
CONFIG_CRYPTO_TGR192=m
CONFIG_CRYPTO_WP512=m
CONFIG_CRYPTO_GHASH_CLMUL_NI_INTEL=m
#
# Ciphers
#
CONFIG_CRYPTO_AES=y
CONFIG_CRYPTO_AES_X86_64=m
CONFIG_CRYPTO_AES_NI_INTEL=m
CONFIG_CRYPTO_ANUBIS=m
CONFIG_CRYPTO_ARC4=m
CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_BLOWFISH_COMMON=m
# CONFIG_CRYPTO_BLOWFISH_X86_64 is not set
CONFIG_CRYPTO_CAMELLIA=m
# CONFIG_CRYPTO_CAMELLIA_X86_64 is not set
# CONFIG_CRYPTO_CAMELLIA_AESNI_AVX_X86_64 is not set
# CONFIG_CRYPTO_CAMELLIA_AESNI_AVX2_X86_64 is not set
CONFIG_CRYPTO_CAST_COMMON=m
CONFIG_CRYPTO_CAST5=m
# CONFIG_CRYPTO_CAST5_AVX_X86_64 is not set
CONFIG_CRYPTO_CAST6=m
# CONFIG_CRYPTO_CAST6_AVX_X86_64 is not set
CONFIG_CRYPTO_DES=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
# CONFIG_CRYPTO_SALSA20 is not set
CONFIG_CRYPTO_SALSA20_X86_64=m
CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_SERPENT=m
# CONFIG_CRYPTO_SERPENT_SSE2_X86_64 is not set
# CONFIG_CRYPTO_SERPENT_AVX_X86_64 is not set
# CONFIG_CRYPTO_SERPENT_AVX2_X86_64 is not set
CONFIG_CRYPTO_TEA=m
# CONFIG_CRYPTO_TWOFISH is not set
CONFIG_CRYPTO_TWOFISH_COMMON=m
CONFIG_CRYPTO_TWOFISH_X86_64=m
# CONFIG_CRYPTO_TWOFISH_X86_64_3WAY is not set
# CONFIG_CRYPTO_TWOFISH_AVX_X86_64 is not set
#
# Compression
#
CONFIG_CRYPTO_DEFLATE=m
CONFIG_CRYPTO_ZLIB=m
CONFIG_CRYPTO_LZO=y
# CONFIG_CRYPTO_LZ4 is not set
# CONFIG_CRYPTO_LZ4HC is not set
#
# Random Number Generation
#
CONFIG_CRYPTO_ANSI_CPRNG=m
CONFIG_CRYPTO_USER_API=m
CONFIG_CRYPTO_USER_API_HASH=m
CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_HASH_INFO=y
CONFIG_CRYPTO_HW=y
CONFIG_CRYPTO_DEV_PADLOCK=m
CONFIG_CRYPTO_DEV_PADLOCK_AES=m
CONFIG_CRYPTO_DEV_PADLOCK_SHA=m
# CONFIG_CRYPTO_DEV_CCP is not set
CONFIG_ASYMMETRIC_KEY_TYPE=y
CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE=y
CONFIG_PUBLIC_KEY_ALGO_RSA=y
CONFIG_X509_CERTIFICATE_PARSER=y
CONFIG_HAVE_KVM=y
CONFIG_HAVE_KVM_IRQCHIP=y
CONFIG_HAVE_KVM_IRQ_ROUTING=y
CONFIG_HAVE_KVM_EVENTFD=y
CONFIG_KVM_APIC_ARCHITECTURE=y
CONFIG_KVM_MMIO=y
CONFIG_KVM_ASYNC_PF=y
CONFIG_HAVE_KVM_MSI=y
CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT=y
CONFIG_KVM_VFIO=y
CONFIG_VIRTUALIZATION=y
CONFIG_KVM=m
CONFIG_KVM_INTEL=m
CONFIG_KVM_AMD=m
# CONFIG_KVM_MMU_AUDIT is not set
CONFIG_KVM_DEVICE_ASSIGNMENT=y
CONFIG_BINARY_PRINTF=y
#
# Library routines
#
CONFIG_RAID6_PQ=m
CONFIG_BITREVERSE=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
CONFIG_GENERIC_NET_UTILS=y
CONFIG_GENERIC_FIND_FIRST_BIT=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_IOMAP=y
CONFIG_GENERIC_IO=y
CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
CONFIG_CRC_CCITT=m
CONFIG_CRC16=y
CONFIG_CRC_T10DIF=m
CONFIG_CRC_ITU_T=m
CONFIG_CRC32=y
# CONFIG_CRC32_SELFTEST is not set
CONFIG_CRC32_SLICEBY8=y
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
CONFIG_CRC7=m
CONFIG_LIBCRC32C=m
# CONFIG_CRC8 is not set
# CONFIG_RANDOM32_SELFTEST is not set
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=y
CONFIG_LZO_COMPRESS=y
CONFIG_LZO_DECOMPRESS=y
CONFIG_LZ4_DECOMPRESS=y
CONFIG_XZ_DEC=y
CONFIG_XZ_DEC_X86=y
CONFIG_XZ_DEC_POWERPC=y
CONFIG_XZ_DEC_IA64=y
CONFIG_XZ_DEC_ARM=y
CONFIG_XZ_DEC_ARMTHUMB=y
CONFIG_XZ_DEC_SPARC=y
CONFIG_XZ_DEC_BCJ=y
# CONFIG_XZ_DEC_TEST is not set
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_XZ=y
CONFIG_DECOMPRESS_LZO=y
CONFIG_DECOMPRESS_LZ4=y
CONFIG_GENERIC_ALLOCATOR=y
CONFIG_REED_SOLOMON=m
CONFIG_REED_SOLOMON_DEC16=y
CONFIG_BCH=m
CONFIG_TEXTSEARCH=y
CONFIG_TEXTSEARCH_KMP=m
CONFIG_TEXTSEARCH_BM=m
CONFIG_TEXTSEARCH_FSM=m
CONFIG_ASSOCIATIVE_ARRAY=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_CHECK_SIGNATURE=y
CONFIG_CPUMASK_OFFSTACK=y
CONFIG_CPU_RMAP=y
CONFIG_DQL=y
CONFIG_NLATTR=y
CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE=y
CONFIG_LRU_CACHE=m
CONFIG_AVERAGE=y
CONFIG_CLZ_TAB=y
# CONFIG_CORDIC is not set
# CONFIG_DDR is not set
CONFIG_MPILIB=y
CONFIG_OID_REGISTRY=y
CONFIG_UCS2_STRING=y
CONFIG_FONT_SUPPORT=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
[-- Attachment #3: Type: text/plain, Size: 126 bytes --]
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xen.org
http://lists.xen.org/xen-devel
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
2014-04-04 17:58 ` Konrad Rzeszutek Wilk
@ 2014-04-04 18:33 ` Konrad Rzeszutek Wilk
-1 siblings, 0 replies; 109+ messages in thread
From: Konrad Rzeszutek Wilk @ 2014-04-04 18:33 UTC (permalink / raw)
To: Waiman Long
Cc: Marcos Matsunaga, Thomas Gleixner, Ingo Molnar, H. Peter Anvin,
Peter Zijlstra, linux-arch, x86, linux-kernel, virtualization,
xen-devel, kvm, Paolo Bonzini, Paul E. McKenney, Rik van Riel,
Linus Torvalds, Raghavendra K T, David Vrabel, Oleg Nesterov,
Gleb Natapov, Aswin Chandramouleeswaran, Scott J Norton,
Chegu Vinod, boris.ostrovsky
On Fri, Apr 04, 2014 at 01:58:15PM -0400, Konrad Rzeszutek Wilk wrote:
> On Fri, Apr 04, 2014 at 01:13:17PM -0400, Waiman Long wrote:
> > On 04/04/2014 12:55 PM, Konrad Rzeszutek Wilk wrote:
> > >On Thu, Apr 03, 2014 at 10:57:18PM -0400, Waiman Long wrote:
> > >>On 04/03/2014 01:23 PM, Konrad Rzeszutek Wilk wrote:
> > >>>On Wed, Apr 02, 2014 at 10:10:17PM -0400, Waiman Long wrote:
> > >>>>On 04/02/2014 04:35 PM, Waiman Long wrote:
> > >>>>>On 04/02/2014 10:32 AM, Konrad Rzeszutek Wilk wrote:
> > >>>>>>On Wed, Apr 02, 2014 at 09:27:29AM -0400, Waiman Long wrote:
> > >>>>>>>N.B. Sorry for the duplicate. This patch series were resent as the
> > >>>>>>> original one was rejected by the vger.kernel.org list server
> > >>>>>>> due to long header. There is no change in content.
> > >>>>>>>
> > >>>>>>>v7->v8:
> > >>>>>>> - Remove one unneeded atomic operation from the slowpath, thus
> > >>>>>>> improving performance.
> > >>>>>>> - Simplify some of the codes and add more comments.
> > >>>>>>> - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
> > >>>>>>> unfair lock.
> > >>>>>>> - Reduce unfair lock slowpath lock stealing frequency depending
> > >>>>>>> on its distance from the queue head.
> > >>>>>>> - Add performance data for IvyBridge-EX CPU.
> > >>>>>>FYI, your v7 patch with 32 VCPUs (on a 32 cpu socket machine) on an
> > >>>>>>HVM guest under Xen after a while stops working. The workload
> > >>>>>>is doing 'make -j32' on the Linux kernel.
> > >>>>>>
> > >>>>>>Completely unresponsive. Thoughts?
> > >>>>>>
> > >>>>>Thank for reporting that. I haven't done that much testing on Xen.
> > >>>>>My focus was in KVM. I will perform more test on Xen to see if I
> > >>>>>can reproduce the problem.
> > >>>>>
> > >>>>BTW, does the halting and sending IPI mechanism work in HVM? I saw
> > >>>Yes.
> > >>>>that in RHEL7, PV spinlock was explicitly disabled when in HVM mode.
> > >>>>However, this piece of code isn't in upstream code. So I wonder if
> > >>>>there is problem with that.
> > >>>The PV ticketlock fixed it for HVM. It was disabled before because
> > >>>the PV guests were using bytelocks while the HVM were using ticketlocks
> > >>>and you couldnt' swap in PV bytelocks for ticketlocks during startup.
> > >>The RHEL7 code has used PV ticketlock already. RHEL7 uses a single
> > >>kernel for all configurations. So PV ticketlock as well as Xen and
> > >>KVM support was compiled in. I think booting the kernel on bare
> > >>metal will cause the Xen code to work in HVM mode thus activating
> > >>the PV spinlock code which has a negative impact on performance.
> > >Huh? -EPARSE
> > >
> > >>That may be why it was disabled so that the bare metal performance
> > >>will not be impacted.
> > >I am not following you.
> >
> > What I am saying is that when XEN and PV spinlock is compiled into
> > the current upstream kernel, the PV spinlock jump label is turned on
> > when booted on bare metal. In other words, the PV spinlock code is
>
> How does it turn it on? I see that the jump lables are only turned
> on when the jump label is enable when it detects that it is running
> under Xen or KVM. It won't turn it on under baremetal.
Well, it seems that it does turn it on baremetal which is an stupid mistake.
Sending a patch shortly.
>
> > active even when they are not needed and actually slow thing down in
> > that situation. This is a problem and we need to find way to make
> > sure that the PV spinlock code won't be activated on bare metal.
>
> Could you explain to me which piece of code enables the jump labels
> on baremetal please?
> >
> > -Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
@ 2014-04-04 18:33 ` Konrad Rzeszutek Wilk
0 siblings, 0 replies; 109+ messages in thread
From: Konrad Rzeszutek Wilk @ 2014-04-04 18:33 UTC (permalink / raw)
To: Waiman Long
Cc: x86, Gleb Natapov, Peter Zijlstra, virtualization,
Marcos Matsunaga, H. Peter Anvin, boris.ostrovsky, linux-arch,
kvm, Raghavendra K T, Ingo Molnar, xen-devel, Paul E. McKenney,
Rik van Riel, Scott J Norton, Paolo Bonzini, Oleg Nesterov,
Thomas Gleixner, Aswin Chandramouleeswaran, Chegu Vinod,
linux-kernel, David Vrabel, Linus Torvalds
On Fri, Apr 04, 2014 at 01:58:15PM -0400, Konrad Rzeszutek Wilk wrote:
> On Fri, Apr 04, 2014 at 01:13:17PM -0400, Waiman Long wrote:
> > On 04/04/2014 12:55 PM, Konrad Rzeszutek Wilk wrote:
> > >On Thu, Apr 03, 2014 at 10:57:18PM -0400, Waiman Long wrote:
> > >>On 04/03/2014 01:23 PM, Konrad Rzeszutek Wilk wrote:
> > >>>On Wed, Apr 02, 2014 at 10:10:17PM -0400, Waiman Long wrote:
> > >>>>On 04/02/2014 04:35 PM, Waiman Long wrote:
> > >>>>>On 04/02/2014 10:32 AM, Konrad Rzeszutek Wilk wrote:
> > >>>>>>On Wed, Apr 02, 2014 at 09:27:29AM -0400, Waiman Long wrote:
> > >>>>>>>N.B. Sorry for the duplicate. This patch series were resent as the
> > >>>>>>> original one was rejected by the vger.kernel.org list server
> > >>>>>>> due to long header. There is no change in content.
> > >>>>>>>
> > >>>>>>>v7->v8:
> > >>>>>>> - Remove one unneeded atomic operation from the slowpath, thus
> > >>>>>>> improving performance.
> > >>>>>>> - Simplify some of the codes and add more comments.
> > >>>>>>> - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
> > >>>>>>> unfair lock.
> > >>>>>>> - Reduce unfair lock slowpath lock stealing frequency depending
> > >>>>>>> on its distance from the queue head.
> > >>>>>>> - Add performance data for IvyBridge-EX CPU.
> > >>>>>>FYI, your v7 patch with 32 VCPUs (on a 32 cpu socket machine) on an
> > >>>>>>HVM guest under Xen after a while stops working. The workload
> > >>>>>>is doing 'make -j32' on the Linux kernel.
> > >>>>>>
> > >>>>>>Completely unresponsive. Thoughts?
> > >>>>>>
> > >>>>>Thank for reporting that. I haven't done that much testing on Xen.
> > >>>>>My focus was in KVM. I will perform more test on Xen to see if I
> > >>>>>can reproduce the problem.
> > >>>>>
> > >>>>BTW, does the halting and sending IPI mechanism work in HVM? I saw
> > >>>Yes.
> > >>>>that in RHEL7, PV spinlock was explicitly disabled when in HVM mode.
> > >>>>However, this piece of code isn't in upstream code. So I wonder if
> > >>>>there is problem with that.
> > >>>The PV ticketlock fixed it for HVM. It was disabled before because
> > >>>the PV guests were using bytelocks while the HVM were using ticketlocks
> > >>>and you couldnt' swap in PV bytelocks for ticketlocks during startup.
> > >>The RHEL7 code has used PV ticketlock already. RHEL7 uses a single
> > >>kernel for all configurations. So PV ticketlock as well as Xen and
> > >>KVM support was compiled in. I think booting the kernel on bare
> > >>metal will cause the Xen code to work in HVM mode thus activating
> > >>the PV spinlock code which has a negative impact on performance.
> > >Huh? -EPARSE
> > >
> > >>That may be why it was disabled so that the bare metal performance
> > >>will not be impacted.
> > >I am not following you.
> >
> > What I am saying is that when XEN and PV spinlock is compiled into
> > the current upstream kernel, the PV spinlock jump label is turned on
> > when booted on bare metal. In other words, the PV spinlock code is
>
> How does it turn it on? I see that the jump lables are only turned
> on when the jump label is enable when it detects that it is running
> under Xen or KVM. It won't turn it on under baremetal.
Well, it seems that it does turn it on baremetal which is an stupid mistake.
Sending a patch shortly.
>
> > active even when they are not needed and actually slow thing down in
> > that situation. This is a problem and we need to find way to make
> > sure that the PV spinlock code won't be activated on bare metal.
>
> Could you explain to me which piece of code enables the jump labels
> on baremetal please?
> >
> > -Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
2014-04-04 17:58 ` Konrad Rzeszutek Wilk
(?)
(?)
@ 2014-04-04 18:33 ` Konrad Rzeszutek Wilk
-1 siblings, 0 replies; 109+ messages in thread
From: Konrad Rzeszutek Wilk @ 2014-04-04 18:33 UTC (permalink / raw)
To: Waiman Long
Cc: x86, Gleb Natapov, Peter Zijlstra, virtualization,
Marcos Matsunaga, H. Peter Anvin, boris.ostrovsky, linux-arch,
kvm, Raghavendra K T, Ingo Molnar, xen-devel, Paul E. McKenney,
Scott J Norton, Paolo Bonzini, Oleg Nesterov, Thomas Gleixner,
Aswin Chandramouleeswaran, Chegu Vinod, linux-kernel,
David Vrabel, Linus Torvalds
On Fri, Apr 04, 2014 at 01:58:15PM -0400, Konrad Rzeszutek Wilk wrote:
> On Fri, Apr 04, 2014 at 01:13:17PM -0400, Waiman Long wrote:
> > On 04/04/2014 12:55 PM, Konrad Rzeszutek Wilk wrote:
> > >On Thu, Apr 03, 2014 at 10:57:18PM -0400, Waiman Long wrote:
> > >>On 04/03/2014 01:23 PM, Konrad Rzeszutek Wilk wrote:
> > >>>On Wed, Apr 02, 2014 at 10:10:17PM -0400, Waiman Long wrote:
> > >>>>On 04/02/2014 04:35 PM, Waiman Long wrote:
> > >>>>>On 04/02/2014 10:32 AM, Konrad Rzeszutek Wilk wrote:
> > >>>>>>On Wed, Apr 02, 2014 at 09:27:29AM -0400, Waiman Long wrote:
> > >>>>>>>N.B. Sorry for the duplicate. This patch series were resent as the
> > >>>>>>> original one was rejected by the vger.kernel.org list server
> > >>>>>>> due to long header. There is no change in content.
> > >>>>>>>
> > >>>>>>>v7->v8:
> > >>>>>>> - Remove one unneeded atomic operation from the slowpath, thus
> > >>>>>>> improving performance.
> > >>>>>>> - Simplify some of the codes and add more comments.
> > >>>>>>> - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
> > >>>>>>> unfair lock.
> > >>>>>>> - Reduce unfair lock slowpath lock stealing frequency depending
> > >>>>>>> on its distance from the queue head.
> > >>>>>>> - Add performance data for IvyBridge-EX CPU.
> > >>>>>>FYI, your v7 patch with 32 VCPUs (on a 32 cpu socket machine) on an
> > >>>>>>HVM guest under Xen after a while stops working. The workload
> > >>>>>>is doing 'make -j32' on the Linux kernel.
> > >>>>>>
> > >>>>>>Completely unresponsive. Thoughts?
> > >>>>>>
> > >>>>>Thank for reporting that. I haven't done that much testing on Xen.
> > >>>>>My focus was in KVM. I will perform more test on Xen to see if I
> > >>>>>can reproduce the problem.
> > >>>>>
> > >>>>BTW, does the halting and sending IPI mechanism work in HVM? I saw
> > >>>Yes.
> > >>>>that in RHEL7, PV spinlock was explicitly disabled when in HVM mode.
> > >>>>However, this piece of code isn't in upstream code. So I wonder if
> > >>>>there is problem with that.
> > >>>The PV ticketlock fixed it for HVM. It was disabled before because
> > >>>the PV guests were using bytelocks while the HVM were using ticketlocks
> > >>>and you couldnt' swap in PV bytelocks for ticketlocks during startup.
> > >>The RHEL7 code has used PV ticketlock already. RHEL7 uses a single
> > >>kernel for all configurations. So PV ticketlock as well as Xen and
> > >>KVM support was compiled in. I think booting the kernel on bare
> > >>metal will cause the Xen code to work in HVM mode thus activating
> > >>the PV spinlock code which has a negative impact on performance.
> > >Huh? -EPARSE
> > >
> > >>That may be why it was disabled so that the bare metal performance
> > >>will not be impacted.
> > >I am not following you.
> >
> > What I am saying is that when XEN and PV spinlock is compiled into
> > the current upstream kernel, the PV spinlock jump label is turned on
> > when booted on bare metal. In other words, the PV spinlock code is
>
> How does it turn it on? I see that the jump lables are only turned
> on when the jump label is enable when it detects that it is running
> under Xen or KVM. It won't turn it on under baremetal.
Well, it seems that it does turn it on baremetal which is an stupid mistake.
Sending a patch shortly.
>
> > active even when they are not needed and actually slow thing down in
> > that situation. This is a problem and we need to find way to make
> > sure that the PV spinlock code won't be activated on bare metal.
>
> Could you explain to me which piece of code enables the jump labels
> on baremetal please?
> >
> > -Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
2014-04-02 13:27 [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support Waiman Long
` (20 preceding siblings ...)
2014-04-07 6:14 ` Raghavendra K T
@ 2014-04-07 6:14 ` Raghavendra K T
2014-04-07 16:38 ` Waiman Long
2014-04-07 16:38 ` Waiman Long
2014-04-07 6:14 ` Raghavendra K T
22 siblings, 2 replies; 109+ messages in thread
From: Raghavendra K T @ 2014-04-07 6:14 UTC (permalink / raw)
To: Waiman Long
Cc: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, Peter Zijlstra,
linux-arch, x86, linux-kernel, virtualization, xen-devel, kvm,
Paolo Bonzini, Konrad Rzeszutek Wilk, Paul E. McKenney,
Rik van Riel, Linus Torvalds, David Vrabel, Oleg Nesterov,
Gleb Natapov, Aswin Chandramouleeswaran, Scott J Norton,
Chegu Vinod
On 04/02/2014 06:57 PM, Waiman Long wrote:
> N.B. Sorry for the duplicate. This patch series were resent as the
> original one was rejected by the vger.kernel.org list server
> due to long header. There is no change in content.
>
> v7->v8:
> - Remove one unneeded atomic operation from the slowpath, thus
> improving performance.
> - Simplify some of the codes and add more comments.
> - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
> unfair lock.
> - Reduce unfair lock slowpath lock stealing frequency depending
> on its distance from the queue head.
> - Add performance data for IvyBridge-EX CPU.
>
> v6->v7:
> - Remove an atomic operation from the 2-task contending code
> - Shorten the names of some macros
> - Make the queue waiter to attempt to steal lock when unfair lock is
> enabled.
> - Remove lock holder kick from the PV code and fix a race condition
> - Run the unfair lock & PV code on overcommitted KVM guests to collect
> performance data.
>
> v5->v6:
> - Change the optimized 2-task contending code to make it fairer at the
> expense of a bit of performance.
> - Add a patch to support unfair queue spinlock for Xen.
> - Modify the PV qspinlock code to follow what was done in the PV
> ticketlock.
> - Add performance data for the unfair lock as well as the PV
> support code.
>
> v4->v5:
> - Move the optimized 2-task contending code to the generic file to
> enable more architectures to use it without code duplication.
> - Address some of the style-related comments by PeterZ.
> - Allow the use of unfair queue spinlock in a real para-virtualized
> execution environment.
> - Add para-virtualization support to the qspinlock code by ensuring
> that the lock holder and queue head stay alive as much as possible.
>
> v3->v4:
> - Remove debugging code and fix a configuration error
> - Simplify the qspinlock structure and streamline the code to make it
> perform a bit better
> - Add an x86 version of asm/qspinlock.h for holding x86 specific
> optimization.
> - Add an optimized x86 code path for 2 contending tasks to improve
> low contention performance.
>
> v2->v3:
> - Simplify the code by using numerous mode only without an unfair option.
> - Use the latest smp_load_acquire()/smp_store_release() barriers.
> - Move the queue spinlock code to kernel/locking.
> - Make the use of queue spinlock the default for x86-64 without user
> configuration.
> - Additional performance tuning.
>
> v1->v2:
> - Add some more comments to document what the code does.
> - Add a numerous CPU mode to support >= 16K CPUs
> - Add a configuration option to allow lock stealing which can further
> improve performance in many cases.
> - Enable wakeup of queue head CPU at unlock time for non-numerous
> CPU mode.
>
> This patch set has 3 different sections:
> 1) Patches 1-4: Introduces a queue-based spinlock implementation that
> can replace the default ticket spinlock without increasing the
> size of the spinlock data structure. As a result, critical kernel
> data structures that embed spinlock won't increase in size and
> break data alignments.
> 2) Patches 5-6: Enables the use of unfair queue spinlock in a
> para-virtualized execution environment. This can resolve some
> of the locking related performance issues due to the fact that
> the next CPU to get the lock may have been scheduled out for a
> period of time.
> 3) Patches 7-10: Enable qspinlock para-virtualization support
> by halting the waiting CPUs after spinning for a certain amount of
> time. The unlock code will detect the a sleeping waiter and wake it
> up. This is essentially the same logic as the PV ticketlock code.
>
> The queue spinlock has slightly better performance than the ticket
> spinlock in uncontended case. Its performance can be much better
> with moderate to heavy contention. This patch has the potential of
> improving the performance of all the workloads that have moderate to
> heavy spinlock contention.
>
> The queue spinlock is especially suitable for NUMA machines with at
> least 2 sockets, though noticeable performance benefit probably won't
> show up in machines with less than 4 sockets.
>
> The purpose of this patch set is not to solve any particular spinlock
> contention problems. Those need to be solved by refactoring the code
> to make more efficient use of the lock or finer granularity ones. The
> main purpose is to make the lock contention problems more tolerable
> until someone can spend the time and effort to fix them.
>
> To illustrate the performance benefit of the queue spinlock, the
> ebizzy benchmark was run with the -m option in two different computers:
>
> Test machine ticket-lock queue-lock
> ------------ ----------- ----------
> 4-socket 40-core 2316 rec/s 2899 rec/s
> Westmere-EX (HT off)
> 2-socket 12-core 2130 rec/s 2176 rec/s
> Westmere-EP (HT on)
>
I tested the v7,v8 of qspinlock with unfair config on kvm guest.
I was curious about unfair locks performance in undercommit cases.
(overcommit case is expected to perform well)
But I am seeing hang in overcommit cases. Gdb showed that many vcpus
are halted and there was no progress. Suspecting the problem /race with
halting, I removed the halt() part of kvm_hibernate(). I am yet to take
a closer look at the code on halt() related changes.
Patch series with that change gave around 20% improvement for dbench 2x
and 30% improvement for ebizzy 2x cases. (1x has no significant loss/gain).
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
2014-04-02 13:27 [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support Waiman Long
` (19 preceding siblings ...)
2014-04-02 14:32 ` Konrad Rzeszutek Wilk
@ 2014-04-07 6:14 ` Raghavendra K T
2014-04-07 6:14 ` Raghavendra K T
2014-04-07 6:14 ` Raghavendra K T
22 siblings, 0 replies; 109+ messages in thread
From: Raghavendra K T @ 2014-04-07 6:14 UTC (permalink / raw)
To: Waiman Long
Cc: linux-arch, Rik van Riel, Gleb Natapov, kvm,
Konrad Rzeszutek Wilk, Peter Zijlstra, Scott J Norton, x86,
Paolo Bonzini, linux-kernel, virtualization, Ingo Molnar,
Chegu Vinod, David Vrabel, H. Peter Anvin, xen-devel,
Thomas Gleixner, Paul E. McKenney, Linus Torvalds, Oleg Nesterov,
Aswin Chandramouleeswaran
On 04/02/2014 06:57 PM, Waiman Long wrote:
> N.B. Sorry for the duplicate. This patch series were resent as the
> original one was rejected by the vger.kernel.org list server
> due to long header. There is no change in content.
>
> v7->v8:
> - Remove one unneeded atomic operation from the slowpath, thus
> improving performance.
> - Simplify some of the codes and add more comments.
> - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
> unfair lock.
> - Reduce unfair lock slowpath lock stealing frequency depending
> on its distance from the queue head.
> - Add performance data for IvyBridge-EX CPU.
>
> v6->v7:
> - Remove an atomic operation from the 2-task contending code
> - Shorten the names of some macros
> - Make the queue waiter to attempt to steal lock when unfair lock is
> enabled.
> - Remove lock holder kick from the PV code and fix a race condition
> - Run the unfair lock & PV code on overcommitted KVM guests to collect
> performance data.
>
> v5->v6:
> - Change the optimized 2-task contending code to make it fairer at the
> expense of a bit of performance.
> - Add a patch to support unfair queue spinlock for Xen.
> - Modify the PV qspinlock code to follow what was done in the PV
> ticketlock.
> - Add performance data for the unfair lock as well as the PV
> support code.
>
> v4->v5:
> - Move the optimized 2-task contending code to the generic file to
> enable more architectures to use it without code duplication.
> - Address some of the style-related comments by PeterZ.
> - Allow the use of unfair queue spinlock in a real para-virtualized
> execution environment.
> - Add para-virtualization support to the qspinlock code by ensuring
> that the lock holder and queue head stay alive as much as possible.
>
> v3->v4:
> - Remove debugging code and fix a configuration error
> - Simplify the qspinlock structure and streamline the code to make it
> perform a bit better
> - Add an x86 version of asm/qspinlock.h for holding x86 specific
> optimization.
> - Add an optimized x86 code path for 2 contending tasks to improve
> low contention performance.
>
> v2->v3:
> - Simplify the code by using numerous mode only without an unfair option.
> - Use the latest smp_load_acquire()/smp_store_release() barriers.
> - Move the queue spinlock code to kernel/locking.
> - Make the use of queue spinlock the default for x86-64 without user
> configuration.
> - Additional performance tuning.
>
> v1->v2:
> - Add some more comments to document what the code does.
> - Add a numerous CPU mode to support >= 16K CPUs
> - Add a configuration option to allow lock stealing which can further
> improve performance in many cases.
> - Enable wakeup of queue head CPU at unlock time for non-numerous
> CPU mode.
>
> This patch set has 3 different sections:
> 1) Patches 1-4: Introduces a queue-based spinlock implementation that
> can replace the default ticket spinlock without increasing the
> size of the spinlock data structure. As a result, critical kernel
> data structures that embed spinlock won't increase in size and
> break data alignments.
> 2) Patches 5-6: Enables the use of unfair queue spinlock in a
> para-virtualized execution environment. This can resolve some
> of the locking related performance issues due to the fact that
> the next CPU to get the lock may have been scheduled out for a
> period of time.
> 3) Patches 7-10: Enable qspinlock para-virtualization support
> by halting the waiting CPUs after spinning for a certain amount of
> time. The unlock code will detect the a sleeping waiter and wake it
> up. This is essentially the same logic as the PV ticketlock code.
>
> The queue spinlock has slightly better performance than the ticket
> spinlock in uncontended case. Its performance can be much better
> with moderate to heavy contention. This patch has the potential of
> improving the performance of all the workloads that have moderate to
> heavy spinlock contention.
>
> The queue spinlock is especially suitable for NUMA machines with at
> least 2 sockets, though noticeable performance benefit probably won't
> show up in machines with less than 4 sockets.
>
> The purpose of this patch set is not to solve any particular spinlock
> contention problems. Those need to be solved by refactoring the code
> to make more efficient use of the lock or finer granularity ones. The
> main purpose is to make the lock contention problems more tolerable
> until someone can spend the time and effort to fix them.
>
> To illustrate the performance benefit of the queue spinlock, the
> ebizzy benchmark was run with the -m option in two different computers:
>
> Test machine ticket-lock queue-lock
> ------------ ----------- ----------
> 4-socket 40-core 2316 rec/s 2899 rec/s
> Westmere-EX (HT off)
> 2-socket 12-core 2130 rec/s 2176 rec/s
> Westmere-EP (HT on)
>
I tested the v7,v8 of qspinlock with unfair config on kvm guest.
I was curious about unfair locks performance in undercommit cases.
(overcommit case is expected to perform well)
But I am seeing hang in overcommit cases. Gdb showed that many vcpus
are halted and there was no progress. Suspecting the problem /race with
halting, I removed the halt() part of kvm_hibernate(). I am yet to take
a closer look at the code on halt() related changes.
Patch series with that change gave around 20% improvement for dbench 2x
and 30% improvement for ebizzy 2x cases. (1x has no significant loss/gain).
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
2014-04-02 13:27 [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support Waiman Long
` (21 preceding siblings ...)
2014-04-07 6:14 ` Raghavendra K T
@ 2014-04-07 6:14 ` Raghavendra K T
22 siblings, 0 replies; 109+ messages in thread
From: Raghavendra K T @ 2014-04-07 6:14 UTC (permalink / raw)
To: Waiman Long
Cc: linux-arch, Gleb Natapov, kvm, Peter Zijlstra, Scott J Norton,
x86, Paolo Bonzini, linux-kernel, virtualization, Ingo Molnar,
Chegu Vinod, David Vrabel, H. Peter Anvin, xen-devel,
Thomas Gleixner, Paul E. McKenney, Linus Torvalds, Oleg Nesterov,
Aswin Chandramouleeswaran
On 04/02/2014 06:57 PM, Waiman Long wrote:
> N.B. Sorry for the duplicate. This patch series were resent as the
> original one was rejected by the vger.kernel.org list server
> due to long header. There is no change in content.
>
> v7->v8:
> - Remove one unneeded atomic operation from the slowpath, thus
> improving performance.
> - Simplify some of the codes and add more comments.
> - Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
> unfair lock.
> - Reduce unfair lock slowpath lock stealing frequency depending
> on its distance from the queue head.
> - Add performance data for IvyBridge-EX CPU.
>
> v6->v7:
> - Remove an atomic operation from the 2-task contending code
> - Shorten the names of some macros
> - Make the queue waiter to attempt to steal lock when unfair lock is
> enabled.
> - Remove lock holder kick from the PV code and fix a race condition
> - Run the unfair lock & PV code on overcommitted KVM guests to collect
> performance data.
>
> v5->v6:
> - Change the optimized 2-task contending code to make it fairer at the
> expense of a bit of performance.
> - Add a patch to support unfair queue spinlock for Xen.
> - Modify the PV qspinlock code to follow what was done in the PV
> ticketlock.
> - Add performance data for the unfair lock as well as the PV
> support code.
>
> v4->v5:
> - Move the optimized 2-task contending code to the generic file to
> enable more architectures to use it without code duplication.
> - Address some of the style-related comments by PeterZ.
> - Allow the use of unfair queue spinlock in a real para-virtualized
> execution environment.
> - Add para-virtualization support to the qspinlock code by ensuring
> that the lock holder and queue head stay alive as much as possible.
>
> v3->v4:
> - Remove debugging code and fix a configuration error
> - Simplify the qspinlock structure and streamline the code to make it
> perform a bit better
> - Add an x86 version of asm/qspinlock.h for holding x86 specific
> optimization.
> - Add an optimized x86 code path for 2 contending tasks to improve
> low contention performance.
>
> v2->v3:
> - Simplify the code by using numerous mode only without an unfair option.
> - Use the latest smp_load_acquire()/smp_store_release() barriers.
> - Move the queue spinlock code to kernel/locking.
> - Make the use of queue spinlock the default for x86-64 without user
> configuration.
> - Additional performance tuning.
>
> v1->v2:
> - Add some more comments to document what the code does.
> - Add a numerous CPU mode to support >= 16K CPUs
> - Add a configuration option to allow lock stealing which can further
> improve performance in many cases.
> - Enable wakeup of queue head CPU at unlock time for non-numerous
> CPU mode.
>
> This patch set has 3 different sections:
> 1) Patches 1-4: Introduces a queue-based spinlock implementation that
> can replace the default ticket spinlock without increasing the
> size of the spinlock data structure. As a result, critical kernel
> data structures that embed spinlock won't increase in size and
> break data alignments.
> 2) Patches 5-6: Enables the use of unfair queue spinlock in a
> para-virtualized execution environment. This can resolve some
> of the locking related performance issues due to the fact that
> the next CPU to get the lock may have been scheduled out for a
> period of time.
> 3) Patches 7-10: Enable qspinlock para-virtualization support
> by halting the waiting CPUs after spinning for a certain amount of
> time. The unlock code will detect the a sleeping waiter and wake it
> up. This is essentially the same logic as the PV ticketlock code.
>
> The queue spinlock has slightly better performance than the ticket
> spinlock in uncontended case. Its performance can be much better
> with moderate to heavy contention. This patch has the potential of
> improving the performance of all the workloads that have moderate to
> heavy spinlock contention.
>
> The queue spinlock is especially suitable for NUMA machines with at
> least 2 sockets, though noticeable performance benefit probably won't
> show up in machines with less than 4 sockets.
>
> The purpose of this patch set is not to solve any particular spinlock
> contention problems. Those need to be solved by refactoring the code
> to make more efficient use of the lock or finer granularity ones. The
> main purpose is to make the lock contention problems more tolerable
> until someone can spend the time and effort to fix them.
>
> To illustrate the performance benefit of the queue spinlock, the
> ebizzy benchmark was run with the -m option in two different computers:
>
> Test machine ticket-lock queue-lock
> ------------ ----------- ----------
> 4-socket 40-core 2316 rec/s 2899 rec/s
> Westmere-EX (HT off)
> 2-socket 12-core 2130 rec/s 2176 rec/s
> Westmere-EP (HT on)
>
I tested the v7,v8 of qspinlock with unfair config on kvm guest.
I was curious about unfair locks performance in undercommit cases.
(overcommit case is expected to perform well)
But I am seeing hang in overcommit cases. Gdb showed that many vcpus
are halted and there was no progress. Suspecting the problem /race with
halting, I removed the halt() part of kvm_hibernate(). I am yet to take
a closer look at the code on halt() related changes.
Patch series with that change gave around 20% improvement for dbench 2x
and 30% improvement for ebizzy 2x cases. (1x has no significant loss/gain).
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation
2014-04-04 17:08 ` Waiman Long
@ 2014-04-07 14:09 ` Peter Zijlstra
-1 siblings, 0 replies; 109+ messages in thread
From: Peter Zijlstra @ 2014-04-07 14:09 UTC (permalink / raw)
To: Waiman Long
Cc: Konrad Rzeszutek Wilk, Thomas Gleixner, Ingo Molnar,
H. Peter Anvin, linux-arch, x86, linux-kernel, virtualization,
xen-devel, kvm, Paolo Bonzini, Paul E. McKenney, Rik van Riel,
Linus Torvalds, Raghavendra K T, David Vrabel, Oleg Nesterov,
Gleb Natapov, Aswin Chandramouleeswaran, Scott J Norton,
Chegu Vinod, Marcos Matsunaga
On Fri, Apr 04, 2014 at 01:08:16PM -0400, Waiman Long wrote:
> Peter's patch is a rewrite of my patches 1-4, there is no PV or unfair lock
> support in there.
Yes, because your patches were unreadable and entirely non obvious.
And while I appreciate that its not entirely your fault; the subject is
hard, you didn't even try to make it better and explain things in a
normal gradual fashion.
So what I did was start with a 'simple' correct implementation (although
I could have started simpler still I suppose and added 3-4 more patches)
and then added each optimization on top and explained the what and why
for them.
The result is similar code, but the path is ever so much easier to
understand and review.
And no, it doesn't have PV support; I spend the whole week trying to
reverse engineer your patch 1; whereas if you'd presented it in the form
I posted I might have agreed in a day or so.
I still have to look at the PV bits; but seeing how you have shown no
interest in writing coherent and understandable patch sets I'm less
inclined to go stare at them for another few weeks and rewrite that code
too.
Also; theres a few subtle but important differences between the patch
sets. Your series only makes x86_64 use the qspinlocks; the very last we
want is i386 and x86_64 to use different spinlock implementations; we
want less differences between them, not more.
You stuff a whole lot of code into arch/x86 for no reason what so ever.
Prior to that; I also rewrote your benchmark thing; using jiffies for
timing is just vile. Not to mention you require a full kernel build and
reboot (which is just stupid slow on big machines) to test anything.
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation
@ 2014-04-07 14:09 ` Peter Zijlstra
0 siblings, 0 replies; 109+ messages in thread
From: Peter Zijlstra @ 2014-04-07 14:09 UTC (permalink / raw)
To: Waiman Long
Cc: x86, Gleb Natapov, Aswin Chandramouleeswaran, Marcos Matsunaga,
H. Peter Anvin, linux-arch, kvm, Raghavendra K T, Ingo Molnar,
xen-devel, Paul E. McKenney, Rik van Riel, Konrad Rzeszutek Wilk,
Scott J Norton, Paolo Bonzini, Oleg Nesterov, Thomas Gleixner,
virtualization, Chegu Vinod, linux-kernel, David Vrabel,
Linus Torvalds
On Fri, Apr 04, 2014 at 01:08:16PM -0400, Waiman Long wrote:
> Peter's patch is a rewrite of my patches 1-4, there is no PV or unfair lock
> support in there.
Yes, because your patches were unreadable and entirely non obvious.
And while I appreciate that its not entirely your fault; the subject is
hard, you didn't even try to make it better and explain things in a
normal gradual fashion.
So what I did was start with a 'simple' correct implementation (although
I could have started simpler still I suppose and added 3-4 more patches)
and then added each optimization on top and explained the what and why
for them.
The result is similar code, but the path is ever so much easier to
understand and review.
And no, it doesn't have PV support; I spend the whole week trying to
reverse engineer your patch 1; whereas if you'd presented it in the form
I posted I might have agreed in a day or so.
I still have to look at the PV bits; but seeing how you have shown no
interest in writing coherent and understandable patch sets I'm less
inclined to go stare at them for another few weeks and rewrite that code
too.
Also; theres a few subtle but important differences between the patch
sets. Your series only makes x86_64 use the qspinlocks; the very last we
want is i386 and x86_64 to use different spinlock implementations; we
want less differences between them, not more.
You stuff a whole lot of code into arch/x86 for no reason what so ever.
Prior to that; I also rewrote your benchmark thing; using jiffies for
timing is just vile. Not to mention you require a full kernel build and
reboot (which is just stupid slow on big machines) to test anything.
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation
2014-04-04 17:08 ` Waiman Long
` (3 preceding siblings ...)
(?)
@ 2014-04-07 14:09 ` Peter Zijlstra
-1 siblings, 0 replies; 109+ messages in thread
From: Peter Zijlstra @ 2014-04-07 14:09 UTC (permalink / raw)
To: Waiman Long
Cc: x86, Gleb Natapov, Aswin Chandramouleeswaran, Marcos Matsunaga,
H. Peter Anvin, linux-arch, kvm, Raghavendra K T, Ingo Molnar,
xen-devel, Paul E. McKenney, Scott J Norton, Paolo Bonzini,
Oleg Nesterov, Thomas Gleixner, virtualization, Chegu Vinod,
linux-kernel, David Vrabel, Linus Torvalds
On Fri, Apr 04, 2014 at 01:08:16PM -0400, Waiman Long wrote:
> Peter's patch is a rewrite of my patches 1-4, there is no PV or unfair lock
> support in there.
Yes, because your patches were unreadable and entirely non obvious.
And while I appreciate that its not entirely your fault; the subject is
hard, you didn't even try to make it better and explain things in a
normal gradual fashion.
So what I did was start with a 'simple' correct implementation (although
I could have started simpler still I suppose and added 3-4 more patches)
and then added each optimization on top and explained the what and why
for them.
The result is similar code, but the path is ever so much easier to
understand and review.
And no, it doesn't have PV support; I spend the whole week trying to
reverse engineer your patch 1; whereas if you'd presented it in the form
I posted I might have agreed in a day or so.
I still have to look at the PV bits; but seeing how you have shown no
interest in writing coherent and understandable patch sets I'm less
inclined to go stare at them for another few weeks and rewrite that code
too.
Also; theres a few subtle but important differences between the patch
sets. Your series only makes x86_64 use the qspinlocks; the very last we
want is i386 and x86_64 to use different spinlock implementations; we
want less differences between them, not more.
You stuff a whole lot of code into arch/x86 for no reason what so ever.
Prior to that; I also rewrote your benchmark thing; using jiffies for
timing is just vile. Not to mention you require a full kernel build and
reboot (which is just stupid slow on big machines) to test anything.
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation
2014-04-04 16:57 ` Konrad Rzeszutek Wilk
@ 2014-04-07 14:12 ` Peter Zijlstra
-1 siblings, 0 replies; 109+ messages in thread
From: Peter Zijlstra @ 2014-04-07 14:12 UTC (permalink / raw)
To: Konrad Rzeszutek Wilk
Cc: Waiman Long, Thomas Gleixner, Ingo Molnar, H. Peter Anvin,
linux-arch, x86, linux-kernel, virtualization, xen-devel, kvm,
Paolo Bonzini, Paul E. McKenney, Rik van Riel, Linus Torvalds,
Raghavendra K T, David Vrabel, Oleg Nesterov, Gleb Natapov,
Aswin Chandramouleeswaran, Scott J Norton, Chegu Vinod,
Marcos Matsunaga
On Fri, Apr 04, 2014 at 12:57:27PM -0400, Konrad Rzeszutek Wilk wrote:
> On Fri, Apr 04, 2014 at 03:00:12PM +0200, Peter Zijlstra wrote:
> >
> > So I'm just not ever going to pick up this patch; I spend a week trying
> > to reverse engineer this; I posted a 7 patch series creating the
> > equivalent, but in a gradual and readable fashion:
> >
> > http://lkml.kernel.org/r/20140310154236.038181843@infradead.org
> >
> > You keep on ignoring that; I'll keep on ignoring your patches.
> >
> > I might at some point rewrite some of your pv stuff on top to get this
> > moving again, but I'm not really motivated to work with you atm.
>
> Uh? Did you CC also xen-devel@lists.xenproject.org on your patches Peter?
> I hadn't had a chance to see or comment on them :-(
No of course not :-)
Also as noted elsewhere, I didn't actually do any PV muck yet. I spend
the time trying to get my head around patch 1; all the while Waiman kept
piling more and more on top.
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation
@ 2014-04-07 14:12 ` Peter Zijlstra
0 siblings, 0 replies; 109+ messages in thread
From: Peter Zijlstra @ 2014-04-07 14:12 UTC (permalink / raw)
To: Konrad Rzeszutek Wilk
Cc: x86, Gleb Natapov, Aswin Chandramouleeswaran, Marcos Matsunaga,
H. Peter Anvin, linux-arch, kvm, Raghavendra K T, Ingo Molnar,
xen-devel, Paul E. McKenney, Rik van Riel, Scott J Norton,
Paolo Bonzini, Oleg Nesterov, Thomas Gleixner, virtualization,
Chegu Vinod, Waiman Long, linux-kernel, David Vrabel,
Linus Torvalds
On Fri, Apr 04, 2014 at 12:57:27PM -0400, Konrad Rzeszutek Wilk wrote:
> On Fri, Apr 04, 2014 at 03:00:12PM +0200, Peter Zijlstra wrote:
> >
> > So I'm just not ever going to pick up this patch; I spend a week trying
> > to reverse engineer this; I posted a 7 patch series creating the
> > equivalent, but in a gradual and readable fashion:
> >
> > http://lkml.kernel.org/r/20140310154236.038181843@infradead.org
> >
> > You keep on ignoring that; I'll keep on ignoring your patches.
> >
> > I might at some point rewrite some of your pv stuff on top to get this
> > moving again, but I'm not really motivated to work with you atm.
>
> Uh? Did you CC also xen-devel@lists.xenproject.org on your patches Peter?
> I hadn't had a chance to see or comment on them :-(
No of course not :-)
Also as noted elsewhere, I didn't actually do any PV muck yet. I spend
the time trying to get my head around patch 1; all the while Waiman kept
piling more and more on top.
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation
2014-04-04 16:57 ` Konrad Rzeszutek Wilk
` (3 preceding siblings ...)
(?)
@ 2014-04-07 14:12 ` Peter Zijlstra
-1 siblings, 0 replies; 109+ messages in thread
From: Peter Zijlstra @ 2014-04-07 14:12 UTC (permalink / raw)
To: Konrad Rzeszutek Wilk
Cc: x86, Gleb Natapov, Aswin Chandramouleeswaran, Marcos Matsunaga,
H. Peter Anvin, linux-arch, kvm, Raghavendra K T, Ingo Molnar,
xen-devel, Paul E. McKenney, Scott J Norton, Paolo Bonzini,
Oleg Nesterov, Thomas Gleixner, virtualization, Chegu Vinod,
Waiman Long, linux-kernel, David Vrabel, Linus Torvalds
On Fri, Apr 04, 2014 at 12:57:27PM -0400, Konrad Rzeszutek Wilk wrote:
> On Fri, Apr 04, 2014 at 03:00:12PM +0200, Peter Zijlstra wrote:
> >
> > So I'm just not ever going to pick up this patch; I spend a week trying
> > to reverse engineer this; I posted a 7 patch series creating the
> > equivalent, but in a gradual and readable fashion:
> >
> > http://lkml.kernel.org/r/20140310154236.038181843@infradead.org
> >
> > You keep on ignoring that; I'll keep on ignoring your patches.
> >
> > I might at some point rewrite some of your pv stuff on top to get this
> > moving again, but I'm not really motivated to work with you atm.
>
> Uh? Did you CC also xen-devel@lists.xenproject.org on your patches Peter?
> I hadn't had a chance to see or comment on them :-(
No of course not :-)
Also as noted elsewhere, I didn't actually do any PV muck yet. I spend
the time trying to get my head around patch 1; all the while Waiman kept
piling more and more on top.
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation
2014-04-04 14:59 ` Waiman Long
@ 2014-04-07 14:16 ` Peter Zijlstra
-1 siblings, 0 replies; 109+ messages in thread
From: Peter Zijlstra @ 2014-04-07 14:16 UTC (permalink / raw)
To: Waiman Long
Cc: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, linux-arch, x86,
linux-kernel, virtualization, xen-devel, kvm, Paolo Bonzini,
Konrad Rzeszutek Wilk, Paul E. McKenney, Rik van Riel,
Linus Torvalds, Raghavendra K T, David Vrabel, Oleg Nesterov,
Gleb Natapov, Aswin Chandramouleeswaran, Scott J Norton,
Chegu Vinod
On Fri, Apr 04, 2014 at 10:59:09AM -0400, Waiman Long wrote:
> I am really sorry if you have bad feeling about it. I do not mean to
> discredit you on your effort to make the qspinlock patch better. I really
> appreciate your input and would like to work with you on this patch as well
> as other future patches.
OK.. that'd be great. Sorry if I sound somewhat cranky (well I am, of
course) partly this is because jet-lag and partly because I just get
grumpy from the Inbox after travel.
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation
@ 2014-04-07 14:16 ` Peter Zijlstra
0 siblings, 0 replies; 109+ messages in thread
From: Peter Zijlstra @ 2014-04-07 14:16 UTC (permalink / raw)
To: Waiman Long
Cc: linux-arch, Rik van Riel, Raghavendra K T, Gleb Natapov, kvm,
Konrad Rzeszutek Wilk, Aswin Chandramouleeswaran, Scott J Norton,
x86, Paolo Bonzini, linux-kernel, virtualization, Ingo Molnar,
Chegu Vinod, David Vrabel, H. Peter Anvin, xen-devel,
Thomas Gleixner, Paul E. McKenney, Linus Torvalds, Oleg Nesterov
On Fri, Apr 04, 2014 at 10:59:09AM -0400, Waiman Long wrote:
> I am really sorry if you have bad feeling about it. I do not mean to
> discredit you on your effort to make the qspinlock patch better. I really
> appreciate your input and would like to work with you on this patch as well
> as other future patches.
OK.. that'd be great. Sorry if I sound somewhat cranky (well I am, of
course) partly this is because jet-lag and partly because I just get
grumpy from the Inbox after travel.
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation
2014-04-04 14:59 ` Waiman Long
` (2 preceding siblings ...)
(?)
@ 2014-04-07 14:16 ` Peter Zijlstra
-1 siblings, 0 replies; 109+ messages in thread
From: Peter Zijlstra @ 2014-04-07 14:16 UTC (permalink / raw)
To: Waiman Long
Cc: linux-arch, Raghavendra K T, Gleb Natapov, kvm,
Aswin Chandramouleeswaran, Scott J Norton, x86, Paolo Bonzini,
linux-kernel, virtualization, Ingo Molnar, Chegu Vinod,
David Vrabel, H. Peter Anvin, xen-devel, Thomas Gleixner,
Paul E. McKenney, Linus Torvalds, Oleg Nesterov
On Fri, Apr 04, 2014 at 10:59:09AM -0400, Waiman Long wrote:
> I am really sorry if you have bad feeling about it. I do not mean to
> discredit you on your effort to make the qspinlock patch better. I really
> appreciate your input and would like to work with you on this patch as well
> as other future patches.
OK.. that'd be great. Sorry if I sound somewhat cranky (well I am, of
course) partly this is because jet-lag and partly because I just get
grumpy from the Inbox after travel.
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation
2014-04-07 14:12 ` Peter Zijlstra
@ 2014-04-07 14:33 ` Konrad Rzeszutek Wilk
-1 siblings, 0 replies; 109+ messages in thread
From: Konrad Rzeszutek Wilk @ 2014-04-07 14:33 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Waiman Long, Thomas Gleixner, Ingo Molnar, H. Peter Anvin,
linux-arch, x86, linux-kernel, virtualization, xen-devel, kvm,
Paolo Bonzini, Paul E. McKenney, Rik van Riel, Linus Torvalds,
Raghavendra K T, David Vrabel, Oleg Nesterov, Gleb Natapov,
Aswin Chandramouleeswaran, Scott J Norton, Chegu Vinod,
Marcos Matsunaga
On Mon, Apr 07, 2014 at 04:12:58PM +0200, Peter Zijlstra wrote:
> On Fri, Apr 04, 2014 at 12:57:27PM -0400, Konrad Rzeszutek Wilk wrote:
> > On Fri, Apr 04, 2014 at 03:00:12PM +0200, Peter Zijlstra wrote:
> > >
> > > So I'm just not ever going to pick up this patch; I spend a week trying
> > > to reverse engineer this; I posted a 7 patch series creating the
> > > equivalent, but in a gradual and readable fashion:
> > >
> > > http://lkml.kernel.org/r/20140310154236.038181843@infradead.org
> > >
> > > You keep on ignoring that; I'll keep on ignoring your patches.
> > >
> > > I might at some point rewrite some of your pv stuff on top to get this
> > > moving again, but I'm not really motivated to work with you atm.
> >
> > Uh? Did you CC also xen-devel@lists.xenproject.org on your patches Peter?
> > I hadn't had a chance to see or comment on them :-(
>
> No of course not :-)
>
> Also as noted elsewhere, I didn't actually do any PV muck yet. I spend
> the time trying to get my head around patch 1; all the while Waiman kept
> piling more and more on top.
Ah, I see. Looking forward to seeing your 'muck' code then :-)
Thanks!
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation
@ 2014-04-07 14:33 ` Konrad Rzeszutek Wilk
0 siblings, 0 replies; 109+ messages in thread
From: Konrad Rzeszutek Wilk @ 2014-04-07 14:33 UTC (permalink / raw)
To: Peter Zijlstra
Cc: x86, Gleb Natapov, Aswin Chandramouleeswaran, Marcos Matsunaga,
H. Peter Anvin, linux-arch, kvm, Raghavendra K T, Ingo Molnar,
xen-devel, Paul E. McKenney, Rik van Riel, Scott J Norton,
Paolo Bonzini, Oleg Nesterov, Thomas Gleixner, virtualization,
Chegu Vinod, Waiman Long, linux-kernel, David Vrabel,
Linus Torvalds
On Mon, Apr 07, 2014 at 04:12:58PM +0200, Peter Zijlstra wrote:
> On Fri, Apr 04, 2014 at 12:57:27PM -0400, Konrad Rzeszutek Wilk wrote:
> > On Fri, Apr 04, 2014 at 03:00:12PM +0200, Peter Zijlstra wrote:
> > >
> > > So I'm just not ever going to pick up this patch; I spend a week trying
> > > to reverse engineer this; I posted a 7 patch series creating the
> > > equivalent, but in a gradual and readable fashion:
> > >
> > > http://lkml.kernel.org/r/20140310154236.038181843@infradead.org
> > >
> > > You keep on ignoring that; I'll keep on ignoring your patches.
> > >
> > > I might at some point rewrite some of your pv stuff on top to get this
> > > moving again, but I'm not really motivated to work with you atm.
> >
> > Uh? Did you CC also xen-devel@lists.xenproject.org on your patches Peter?
> > I hadn't had a chance to see or comment on them :-(
>
> No of course not :-)
>
> Also as noted elsewhere, I didn't actually do any PV muck yet. I spend
> the time trying to get my head around patch 1; all the while Waiman kept
> piling more and more on top.
Ah, I see. Looking forward to seeing your 'muck' code then :-)
Thanks!
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation
2014-04-07 14:12 ` Peter Zijlstra
(?)
@ 2014-04-07 14:33 ` Konrad Rzeszutek Wilk
-1 siblings, 0 replies; 109+ messages in thread
From: Konrad Rzeszutek Wilk @ 2014-04-07 14:33 UTC (permalink / raw)
To: Peter Zijlstra
Cc: x86, Gleb Natapov, Aswin Chandramouleeswaran, Marcos Matsunaga,
H. Peter Anvin, linux-arch, kvm, Raghavendra K T, Ingo Molnar,
xen-devel, Paul E. McKenney, Scott J Norton, Paolo Bonzini,
Oleg Nesterov, Thomas Gleixner, virtualization, Chegu Vinod,
Waiman Long, linux-kernel, David Vrabel, Linus Torvalds
On Mon, Apr 07, 2014 at 04:12:58PM +0200, Peter Zijlstra wrote:
> On Fri, Apr 04, 2014 at 12:57:27PM -0400, Konrad Rzeszutek Wilk wrote:
> > On Fri, Apr 04, 2014 at 03:00:12PM +0200, Peter Zijlstra wrote:
> > >
> > > So I'm just not ever going to pick up this patch; I spend a week trying
> > > to reverse engineer this; I posted a 7 patch series creating the
> > > equivalent, but in a gradual and readable fashion:
> > >
> > > http://lkml.kernel.org/r/20140310154236.038181843@infradead.org
> > >
> > > You keep on ignoring that; I'll keep on ignoring your patches.
> > >
> > > I might at some point rewrite some of your pv stuff on top to get this
> > > moving again, but I'm not really motivated to work with you atm.
> >
> > Uh? Did you CC also xen-devel@lists.xenproject.org on your patches Peter?
> > I hadn't had a chance to see or comment on them :-(
>
> No of course not :-)
>
> Also as noted elsewhere, I didn't actually do any PV muck yet. I spend
> the time trying to get my head around patch 1; all the while Waiman kept
> piling more and more on top.
Ah, I see. Looking forward to seeing your 'muck' code then :-)
Thanks!
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
2014-04-07 6:14 ` Raghavendra K T
@ 2014-04-07 16:38 ` Waiman Long
2014-04-07 16:38 ` Waiman Long
1 sibling, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-07 16:38 UTC (permalink / raw)
To: Raghavendra K T
Cc: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, Peter Zijlstra,
linux-arch, x86, linux-kernel, virtualization, xen-devel, kvm,
Paolo Bonzini, Konrad Rzeszutek Wilk, Paul E. McKenney,
Rik van Riel, Linus Torvalds, David Vrabel, Oleg Nesterov,
Gleb Natapov, Aswin Chandramouleeswaran, Scott J Norton,
Chegu Vinod
On 04/07/2014 02:14 AM, Raghavendra K T wrote:
>
>
> I tested the v7,v8 of qspinlock with unfair config on kvm guest.
> I was curious about unfair locks performance in undercommit cases.
> (overcommit case is expected to perform well)
>
> But I am seeing hang in overcommit cases. Gdb showed that many vcpus
> are halted and there was no progress. Suspecting the problem /race with
> halting, I removed the halt() part of kvm_hibernate(). I am yet to
> take a closer look at the code on halt() related changes.
It seems like there may still be race conditions where the current code
is not handling correctly. I will look into that to see where the
problem is. BTW, what test do you use to produce the hang condition?
>
> Patch series with that change gave around 20% improvement for dbench
> 2x and 30% improvement for ebizzy 2x cases. (1x has no significant
> loss/gain).
>
>
What is the baseline for the performance improvement? Is it without the
unfair lock and PV qspinlock?
-Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
@ 2014-04-07 16:38 ` Waiman Long
0 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-07 16:38 UTC (permalink / raw)
To: Raghavendra K T
Cc: linux-arch, Rik van Riel, Gleb Natapov, kvm,
Konrad Rzeszutek Wilk, Peter Zijlstra, Scott J Norton, x86,
Paolo Bonzini, linux-kernel, virtualization, Ingo Molnar,
Chegu Vinod, David Vrabel, H. Peter Anvin, xen-devel,
Thomas Gleixner, Paul E. McKenney, Linus Torvalds, Oleg Nesterov,
Aswin Chandramouleeswaran
On 04/07/2014 02:14 AM, Raghavendra K T wrote:
>
>
> I tested the v7,v8 of qspinlock with unfair config on kvm guest.
> I was curious about unfair locks performance in undercommit cases.
> (overcommit case is expected to perform well)
>
> But I am seeing hang in overcommit cases. Gdb showed that many vcpus
> are halted and there was no progress. Suspecting the problem /race with
> halting, I removed the halt() part of kvm_hibernate(). I am yet to
> take a closer look at the code on halt() related changes.
It seems like there may still be race conditions where the current code
is not handling correctly. I will look into that to see where the
problem is. BTW, what test do you use to produce the hang condition?
>
> Patch series with that change gave around 20% improvement for dbench
> 2x and 30% improvement for ebizzy 2x cases. (1x has no significant
> loss/gain).
>
>
What is the baseline for the performance improvement? Is it without the
unfair lock and PV qspinlock?
-Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
2014-04-07 6:14 ` Raghavendra K T
@ 2014-04-07 16:38 ` Waiman Long
2014-04-07 16:38 ` Waiman Long
1 sibling, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-07 16:38 UTC (permalink / raw)
To: Raghavendra K T
Cc: linux-arch, Gleb Natapov, kvm, Peter Zijlstra, Scott J Norton,
x86, Paolo Bonzini, linux-kernel, virtualization, Ingo Molnar,
Chegu Vinod, David Vrabel, H. Peter Anvin, xen-devel,
Thomas Gleixner, Paul E. McKenney, Linus Torvalds, Oleg Nesterov,
Aswin Chandramouleeswaran
On 04/07/2014 02:14 AM, Raghavendra K T wrote:
>
>
> I tested the v7,v8 of qspinlock with unfair config on kvm guest.
> I was curious about unfair locks performance in undercommit cases.
> (overcommit case is expected to perform well)
>
> But I am seeing hang in overcommit cases. Gdb showed that many vcpus
> are halted and there was no progress. Suspecting the problem /race with
> halting, I removed the halt() part of kvm_hibernate(). I am yet to
> take a closer look at the code on halt() related changes.
It seems like there may still be race conditions where the current code
is not handling correctly. I will look into that to see where the
problem is. BTW, what test do you use to produce the hang condition?
>
> Patch series with that change gave around 20% improvement for dbench
> 2x and 30% improvement for ebizzy 2x cases. (1x has no significant
> loss/gain).
>
>
What is the baseline for the performance improvement? Is it without the
unfair lock and PV qspinlock?
-Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation
2014-04-07 14:09 ` Peter Zijlstra
@ 2014-04-07 16:59 ` Waiman Long
-1 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-07 16:59 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Konrad Rzeszutek Wilk, Thomas Gleixner, Ingo Molnar,
H. Peter Anvin, linux-arch, x86, linux-kernel, virtualization,
xen-devel, kvm, Paolo Bonzini, Paul E. McKenney, Rik van Riel,
Linus Torvalds, Raghavendra K T, David Vrabel, Oleg Nesterov,
Gleb Natapov, Aswin Chandramouleeswaran, Scott J Norton,
Chegu Vinod, Marcos Matsunaga
On 04/07/2014 10:09 AM, Peter Zijlstra wrote:
> On Fri, Apr 04, 2014 at 01:08:16PM -0400, Waiman Long wrote:
>> Peter's patch is a rewrite of my patches 1-4, there is no PV or unfair lock
>> support in there.
> Yes, because your patches were unreadable and entirely non obvious.
>
> And while I appreciate that its not entirely your fault; the subject is
> hard, you didn't even try to make it better and explain things in a
> normal gradual fashion.
>
> So what I did was start with a 'simple' correct implementation (although
> I could have started simpler still I suppose and added 3-4 more patches)
> and then added each optimization on top and explained the what and why
> for them.
>
> The result is similar code, but the path is ever so much easier to
> understand and review.
I appreciate your time in rewriting the code to make it easier to
review. I will based my next patch on your rewrite. However, I am going
to make the following minor changes:
1. I would like to series to be compilable with tip/master and v3.15-rc.
Your patches seem to use some constants like __BYTE_ORDER__ that are not
defined there. I will make change that to make them compilable on top of
the latest upstream code.
2. Your patch uses atomic_test_and_set_bit to set the pending bit. I
would prefer to use atomic_cmpxchg() which will ensure that the pending
bit won't be set when some other tasks are already on the queue. This
will also enable me to allow the simple setting of the lock bit without
using atomic instruction. This change doesn't change performance that
much when I tested it on Westmere. But on IvyBridge, it had a pretty big
performance impact.
3. I doubt it is a good idea for the queue head to use atomic_cmpxchg()
to pound on the lock cacheline repeatedly in the waiting loop. It will
make it much harder for the lock holder to access the lock cacheline. I
will use a simple atomic_read to query the status of the lock before
doing any write on it.
>
> And no, it doesn't have PV support; I spend the whole week trying to
> reverse engineer your patch 1; whereas if you'd presented it in the form
> I posted I might have agreed in a day or so.
>
> I still have to look at the PV bits; but seeing how you have shown no
> interest in writing coherent and understandable patch sets I'm less
> inclined to go stare at them for another few weeks and rewrite that code
> too.
>
> Also; theres a few subtle but important differences between the patch
> sets. Your series only makes x86_64 use the qspinlocks; the very last we
> want is i386 and x86_64 to use different spinlock implementations; we
> want less differences between them, not more.
I have no problem of making qspinlock the default for all x86 code.
>
> You stuff a whole lot of code into arch/x86 for no reason what so ever.
>
> Prior to that; I also rewrote your benchmark thing; using jiffies for
> timing is just vile. Not to mention you require a full kernel build and
> reboot (which is just stupid slow on big machines) to test anything.
Yes, using jiffies isn't the best idea, it is just an easier way. BTW, I
don't need to reboot the machine to run my test, I only need to build
the .ko file and use insmod to insert into the running kernel. When it
is done, rmmod can be used to remove it. I do need to rebuild the kernel
when I make changes to the qspinlock patch.
-Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation
@ 2014-04-07 16:59 ` Waiman Long
0 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-07 16:59 UTC (permalink / raw)
To: Peter Zijlstra
Cc: x86, Gleb Natapov, Aswin Chandramouleeswaran, Marcos Matsunaga,
H. Peter Anvin, linux-arch, kvm, Raghavendra K T, Ingo Molnar,
xen-devel, Paul E. McKenney, Rik van Riel, Konrad Rzeszutek Wilk,
Scott J Norton, Paolo Bonzini, Oleg Nesterov, Thomas Gleixner,
virtualization, Chegu Vinod, linux-kernel, David Vrabel,
Linus Torvalds
On 04/07/2014 10:09 AM, Peter Zijlstra wrote:
> On Fri, Apr 04, 2014 at 01:08:16PM -0400, Waiman Long wrote:
>> Peter's patch is a rewrite of my patches 1-4, there is no PV or unfair lock
>> support in there.
> Yes, because your patches were unreadable and entirely non obvious.
>
> And while I appreciate that its not entirely your fault; the subject is
> hard, you didn't even try to make it better and explain things in a
> normal gradual fashion.
>
> So what I did was start with a 'simple' correct implementation (although
> I could have started simpler still I suppose and added 3-4 more patches)
> and then added each optimization on top and explained the what and why
> for them.
>
> The result is similar code, but the path is ever so much easier to
> understand and review.
I appreciate your time in rewriting the code to make it easier to
review. I will based my next patch on your rewrite. However, I am going
to make the following minor changes:
1. I would like to series to be compilable with tip/master and v3.15-rc.
Your patches seem to use some constants like __BYTE_ORDER__ that are not
defined there. I will make change that to make them compilable on top of
the latest upstream code.
2. Your patch uses atomic_test_and_set_bit to set the pending bit. I
would prefer to use atomic_cmpxchg() which will ensure that the pending
bit won't be set when some other tasks are already on the queue. This
will also enable me to allow the simple setting of the lock bit without
using atomic instruction. This change doesn't change performance that
much when I tested it on Westmere. But on IvyBridge, it had a pretty big
performance impact.
3. I doubt it is a good idea for the queue head to use atomic_cmpxchg()
to pound on the lock cacheline repeatedly in the waiting loop. It will
make it much harder for the lock holder to access the lock cacheline. I
will use a simple atomic_read to query the status of the lock before
doing any write on it.
>
> And no, it doesn't have PV support; I spend the whole week trying to
> reverse engineer your patch 1; whereas if you'd presented it in the form
> I posted I might have agreed in a day or so.
>
> I still have to look at the PV bits; but seeing how you have shown no
> interest in writing coherent and understandable patch sets I'm less
> inclined to go stare at them for another few weeks and rewrite that code
> too.
>
> Also; theres a few subtle but important differences between the patch
> sets. Your series only makes x86_64 use the qspinlocks; the very last we
> want is i386 and x86_64 to use different spinlock implementations; we
> want less differences between them, not more.
I have no problem of making qspinlock the default for all x86 code.
>
> You stuff a whole lot of code into arch/x86 for no reason what so ever.
>
> Prior to that; I also rewrote your benchmark thing; using jiffies for
> timing is just vile. Not to mention you require a full kernel build and
> reboot (which is just stupid slow on big machines) to test anything.
Yes, using jiffies isn't the best idea, it is just an easier way. BTW, I
don't need to reboot the machine to run my test, I only need to build
the .ko file and use insmod to insert into the running kernel. When it
is done, rmmod can be used to remove it. I do need to rebuild the kernel
when I make changes to the qspinlock patch.
-Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation
2014-04-07 14:09 ` Peter Zijlstra
(?)
(?)
@ 2014-04-07 16:59 ` Waiman Long
-1 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-07 16:59 UTC (permalink / raw)
To: Peter Zijlstra
Cc: x86, Gleb Natapov, Aswin Chandramouleeswaran, Marcos Matsunaga,
H. Peter Anvin, linux-arch, kvm, Raghavendra K T, Ingo Molnar,
xen-devel, Paul E. McKenney, Scott J Norton, Paolo Bonzini,
Oleg Nesterov, Thomas Gleixner, virtualization, Chegu Vinod,
linux-kernel, David Vrabel, Linus Torvalds
On 04/07/2014 10:09 AM, Peter Zijlstra wrote:
> On Fri, Apr 04, 2014 at 01:08:16PM -0400, Waiman Long wrote:
>> Peter's patch is a rewrite of my patches 1-4, there is no PV or unfair lock
>> support in there.
> Yes, because your patches were unreadable and entirely non obvious.
>
> And while I appreciate that its not entirely your fault; the subject is
> hard, you didn't even try to make it better and explain things in a
> normal gradual fashion.
>
> So what I did was start with a 'simple' correct implementation (although
> I could have started simpler still I suppose and added 3-4 more patches)
> and then added each optimization on top and explained the what and why
> for them.
>
> The result is similar code, but the path is ever so much easier to
> understand and review.
I appreciate your time in rewriting the code to make it easier to
review. I will based my next patch on your rewrite. However, I am going
to make the following minor changes:
1. I would like to series to be compilable with tip/master and v3.15-rc.
Your patches seem to use some constants like __BYTE_ORDER__ that are not
defined there. I will make change that to make them compilable on top of
the latest upstream code.
2. Your patch uses atomic_test_and_set_bit to set the pending bit. I
would prefer to use atomic_cmpxchg() which will ensure that the pending
bit won't be set when some other tasks are already on the queue. This
will also enable me to allow the simple setting of the lock bit without
using atomic instruction. This change doesn't change performance that
much when I tested it on Westmere. But on IvyBridge, it had a pretty big
performance impact.
3. I doubt it is a good idea for the queue head to use atomic_cmpxchg()
to pound on the lock cacheline repeatedly in the waiting loop. It will
make it much harder for the lock holder to access the lock cacheline. I
will use a simple atomic_read to query the status of the lock before
doing any write on it.
>
> And no, it doesn't have PV support; I spend the whole week trying to
> reverse engineer your patch 1; whereas if you'd presented it in the form
> I posted I might have agreed in a day or so.
>
> I still have to look at the PV bits; but seeing how you have shown no
> interest in writing coherent and understandable patch sets I'm less
> inclined to go stare at them for another few weeks and rewrite that code
> too.
>
> Also; theres a few subtle but important differences between the patch
> sets. Your series only makes x86_64 use the qspinlocks; the very last we
> want is i386 and x86_64 to use different spinlock implementations; we
> want less differences between them, not more.
I have no problem of making qspinlock the default for all x86 code.
>
> You stuff a whole lot of code into arch/x86 for no reason what so ever.
>
> Prior to that; I also rewrote your benchmark thing; using jiffies for
> timing is just vile. Not to mention you require a full kernel build and
> reboot (which is just stupid slow on big machines) to test anything.
Yes, using jiffies isn't the best idea, it is just an easier way. BTW, I
don't need to reboot the machine to run my test, I only need to build
the .ko file and use insmod to insert into the running kernel. When it
is done, rmmod can be used to remove it. I do need to rebuild the kernel
when I make changes to the qspinlock patch.
-Longman
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
2014-04-07 16:38 ` Waiman Long
@ 2014-04-07 17:51 ` Raghavendra K T
-1 siblings, 0 replies; 109+ messages in thread
From: Raghavendra K T @ 2014-04-07 17:51 UTC (permalink / raw)
To: Waiman Long
Cc: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, Peter Zijlstra,
linux-arch, x86, linux-kernel, virtualization, xen-devel, kvm,
Paolo Bonzini, Konrad Rzeszutek Wilk, Paul E. McKenney,
Rik van Riel, Linus Torvalds, David Vrabel, Oleg Nesterov,
Gleb Natapov, Aswin Chandramouleeswaran, Scott J Norton,
Chegu Vinod
On 04/07/2014 10:08 PM, Waiman Long wrote:
> On 04/07/2014 02:14 AM, Raghavendra K T wrote:
[...]
>> But I am seeing hang in overcommit cases. Gdb showed that many vcpus
>> are halted and there was no progress. Suspecting the problem /race with
>> halting, I removed the halt() part of kvm_hibernate(). I am yet to
>> take a closer look at the code on halt() related changes.
>
> It seems like there may still be race conditions where the current code
> is not handling correctly. I will look into that to see where the
> problem is. BTW, what test do you use to produce the hang condition?
Running ebizzy on 2 of the vms simultaneously (for sometime in repeated
loop) could reproduce it.
>> Patch series with that change gave around 20% improvement for dbench
>> 2x and 30% improvement for ebizzy 2x cases. (1x has no significant
>> loss/gain).
>>
While at it, Just a correction it was 30% for ebizzy1.5x and around
80% for ebizzy 2x.
> What is the baseline for the performance improvement? Is it without the
> unfair lock and PV qspinlock?
Baseline was 3.14-rc8 without any of the qspin patch series.
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
@ 2014-04-07 17:51 ` Raghavendra K T
0 siblings, 0 replies; 109+ messages in thread
From: Raghavendra K T @ 2014-04-07 17:51 UTC (permalink / raw)
To: Waiman Long
Cc: linux-arch, Rik van Riel, Gleb Natapov, kvm,
Konrad Rzeszutek Wilk, Peter Zijlstra, Scott J Norton, x86,
Paolo Bonzini, linux-kernel, virtualization, Ingo Molnar,
Chegu Vinod, David Vrabel, H. Peter Anvin, xen-devel,
Thomas Gleixner, Paul E. McKenney, Linus Torvalds, Oleg Nesterov,
Aswin Chandramouleeswaran
On 04/07/2014 10:08 PM, Waiman Long wrote:
> On 04/07/2014 02:14 AM, Raghavendra K T wrote:
[...]
>> But I am seeing hang in overcommit cases. Gdb showed that many vcpus
>> are halted and there was no progress. Suspecting the problem /race with
>> halting, I removed the halt() part of kvm_hibernate(). I am yet to
>> take a closer look at the code on halt() related changes.
>
> It seems like there may still be race conditions where the current code
> is not handling correctly. I will look into that to see where the
> problem is. BTW, what test do you use to produce the hang condition?
Running ebizzy on 2 of the vms simultaneously (for sometime in repeated
loop) could reproduce it.
>> Patch series with that change gave around 20% improvement for dbench
>> 2x and 30% improvement for ebizzy 2x cases. (1x has no significant
>> loss/gain).
>>
While at it, Just a correction it was 30% for ebizzy1.5x and around
80% for ebizzy 2x.
> What is the baseline for the performance improvement? Is it without the
> unfair lock and PV qspinlock?
Baseline was 3.14-rc8 without any of the qspin patch series.
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
2014-04-07 16:38 ` Waiman Long
(?)
(?)
@ 2014-04-07 17:51 ` Raghavendra K T
-1 siblings, 0 replies; 109+ messages in thread
From: Raghavendra K T @ 2014-04-07 17:51 UTC (permalink / raw)
To: Waiman Long
Cc: linux-arch, Gleb Natapov, kvm, Peter Zijlstra, Scott J Norton,
x86, Paolo Bonzini, linux-kernel, virtualization, Ingo Molnar,
Chegu Vinod, David Vrabel, H. Peter Anvin, xen-devel,
Thomas Gleixner, Paul E. McKenney, Linus Torvalds, Oleg Nesterov,
Aswin Chandramouleeswaran
On 04/07/2014 10:08 PM, Waiman Long wrote:
> On 04/07/2014 02:14 AM, Raghavendra K T wrote:
[...]
>> But I am seeing hang in overcommit cases. Gdb showed that many vcpus
>> are halted and there was no progress. Suspecting the problem /race with
>> halting, I removed the halt() part of kvm_hibernate(). I am yet to
>> take a closer look at the code on halt() related changes.
>
> It seems like there may still be race conditions where the current code
> is not handling correctly. I will look into that to see where the
> problem is. BTW, what test do you use to produce the hang condition?
Running ebizzy on 2 of the vms simultaneously (for sometime in repeated
loop) could reproduce it.
>> Patch series with that change gave around 20% improvement for dbench
>> 2x and 30% improvement for ebizzy 2x cases. (1x has no significant
>> loss/gain).
>>
While at it, Just a correction it was 30% for ebizzy1.5x and around
80% for ebizzy 2x.
> What is the baseline for the performance improvement? Is it without the
> unfair lock and PV qspinlock?
Baseline was 3.14-rc8 without any of the qspin patch series.
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
2014-04-07 17:51 ` Raghavendra K T
@ 2014-04-08 19:15 ` Waiman Long
-1 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-08 19:15 UTC (permalink / raw)
To: Raghavendra K T
Cc: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, Peter Zijlstra,
linux-arch, x86, linux-kernel, virtualization, xen-devel, kvm,
Paolo Bonzini, Konrad Rzeszutek Wilk, Paul E. McKenney,
Rik van Riel, Linus Torvalds, David Vrabel, Oleg Nesterov,
Gleb Natapov, Aswin Chandramouleeswaran, Scott J Norton,
Chegu Vinod
[-- Attachment #1: Type: text/plain, Size: 1194 bytes --]
On 04/07/2014 01:51 PM, Raghavendra K T wrote:
> On 04/07/2014 10:08 PM, Waiman Long wrote:
>> On 04/07/2014 02:14 AM, Raghavendra K T wrote:
> [...]
>>> But I am seeing hang in overcommit cases. Gdb showed that many vcpus
>>> are halted and there was no progress. Suspecting the problem /race with
>>> halting, I removed the halt() part of kvm_hibernate(). I am yet to
>>> take a closer look at the code on halt() related changes.
>>
>> It seems like there may still be race conditions where the current code
>> is not handling correctly. I will look into that to see where the
>> problem is. BTW, what test do you use to produce the hang condition?
>
> Running ebizzy on 2 of the vms simultaneously (for sometime in
> repeated loop) could reproduce it.
>
Yes, I am able to reproduce the hang problem with ebizzy. BTW, could you
try to apply the attached patch file on top of the v8 patch series to
see if it can fix the hang problem?
>
>> What is the baseline for the performance improvement? Is it without the
>> unfair lock and PV qspinlock?
>
> Baseline was 3.14-rc8 without any of the qspin patch series.
>
Does the baseline have PV ticketlock or without any PV support?
-Longman
[-- Attachment #2: 0011 --]
[-- Type: text/plain, Size: 4725 bytes --]
diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index a35cd02..825c535 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -717,9 +717,10 @@ static __always_inline void __queue_kick_cpu(int cpu)
PVOP_VCALL1(pv_lock_ops.kick_cpu, cpu);
}
-static __always_inline void __queue_hibernate(enum pv_lock_stats type)
+static __always_inline void
+__queue_hibernate(enum pv_lock_stats type, s8 *state, s8 sval)
{
- PVOP_VCALL1(pv_lock_ops.hibernate, type);
+ PVOP_VCALL3(pv_lock_ops.hibernate, type, state, sval);
}
static __always_inline void __queue_lockstat(enum pv_lock_stats type)
diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
index a8564b9..0e204dd 100644
--- a/arch/x86/include/asm/paravirt_types.h
+++ b/arch/x86/include/asm/paravirt_types.h
@@ -346,7 +346,7 @@ enum pv_lock_stats {
struct pv_lock_ops {
#ifdef CONFIG_QUEUE_SPINLOCK
void (*kick_cpu)(int cpu);
- void (*hibernate)(enum pv_lock_stats type);
+ void (*hibernate)(enum pv_lock_stats type, s8 *state, s8 sval);
void (*lockstat)(enum pv_lock_stats type);
#else
struct paravirt_callee_save lock_spinning;
diff --git a/arch/x86/include/asm/pvqspinlock.h b/arch/x86/include/asm/pvqspinlock.h
index a632dcb..4b33769 100644
--- a/arch/x86/include/asm/pvqspinlock.h
+++ b/arch/x86/include/asm/pvqspinlock.h
@@ -134,7 +134,7 @@ static __always_inline void pv_head_spin_check(struct pv_qvars *pv, int *count,
*count = 0;
return;
}
- __queue_hibernate(PV_HALT_QHEAD);
+ __queue_hibernate(PV_HALT_QHEAD, &pv->cpustate, PV_CPU_HALTED);
__queue_lockstat((pv->cpustate == PV_CPU_KICKED)
? PV_WAKE_KICKED : PV_WAKE_SPURIOUS);
ACCESS_ONCE(pv->cpustate) = PV_CPU_ACTIVE;
@@ -169,7 +169,7 @@ static __always_inline void pv_queue_spin_check(struct pv_qvars *pv, int *count)
* pv_next_node_check pv_queue_spin_check
* ------------------ -------------------
* [1] qhead = true [3] cpustate = PV_CPU_HALTED
- * barrier() barrier()
+ * smp_mb() smp_mb()
* [2] if (cpustate [4] if (qhead)
* == PV_CPU_HALTED)
*
@@ -178,9 +178,10 @@ static __always_inline void pv_queue_spin_check(struct pv_qvars *pv, int *count)
* _QLOCK_LOCKED_SLOWPATH may or may not be set
* 3,4,1,2 - the CPU is halt and _QLOCK_LOCKED_SLOWPATH is set
*/
- barrier();
+ smp_mb();
if (!ACCESS_ONCE(pv->qhead)) {
- __queue_hibernate(PV_HALT_QNODE);
+ __queue_hibernate(PV_HALT_QNODE, &pv->cpustate,
+ PV_CPU_HALTED);
__queue_lockstat((pv->cpustate == PV_CPU_KICKED)
? PV_WAKE_KICKED : PV_WAKE_SPURIOUS);
} else {
@@ -208,7 +209,7 @@ pv_next_node_check(struct pv_qvars *pv, struct qspinlock *lock)
/*
* Make sure qhead flag is visible before checking the cpustate flag
*/
- barrier();
+ smp_mb();
if (ACCESS_ONCE(pv->cpustate) == PV_CPU_HALTED)
ACCESS_ONCE(((union arch_qspinlock *)lock)->lock)
= _QLOCK_LOCKED_SLOWPATH;
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index 7d97e58..ce4b74b 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -880,23 +880,29 @@ static void kvm_kick_cpu_stats(int cpu)
/*
* Halt the current CPU & release it back to the host
*/
-static void kvm_hibernate(enum pv_lock_stats type)
+static void kvm_hibernate(enum pv_lock_stats type, s8 *state, s8 sval)
{
unsigned long flags;
if (in_nmi())
return;
- kvm_halt_stats(type);
/*
* Make sure an interrupt handler can't upset things in a
* partially setup state.
*/
local_irq_save(flags);
+ /*
+ * Don't halt if the CPU state has been changed.
+ */
+ if (ACCESS_ONCE(*state) != sval)
+ goto out;
+ kvm_halt_stats(type);
if (arch_irqs_disabled_flags(flags))
halt();
else
safe_halt();
+out:
local_irq_restore(flags);
}
#endif /* !CONFIG_QUEUE_SPINLOCK */
diff --git a/arch/x86/xen/spinlock.c b/arch/x86/xen/spinlock.c
index 6bbe798..c597bbd 100644
--- a/arch/x86/xen/spinlock.c
+++ b/arch/x86/xen/spinlock.c
@@ -271,7 +271,7 @@ static void xen_kick_cpu(int cpu)
/*
* Halt the current CPU & release it back to the host
*/
-static void xen_hibernate(enum pv_lock_stats type)
+static void xen_hibernate(enum pv_lock_stats type, s8 *state, s8 sval)
{
int irq = __this_cpu_read(lock_kicker_irq);
unsigned long flags;
@@ -292,7 +292,11 @@ static void xen_hibernate(enum pv_lock_stats type)
/* Allow interrupts while blocked */
local_irq_restore(flags);
-
+ /*
+ * Don't halt if the CPU state has been changed.
+ */
+ if (ACCESS_ONCE(*state) != sval)
+ return;
/*
* If an interrupt happens here, it will leave the wakeup irq
* pending, which will cause xen_poll_irq() to return
^ permalink raw reply related [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
@ 2014-04-08 19:15 ` Waiman Long
0 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-08 19:15 UTC (permalink / raw)
To: Raghavendra K T
Cc: linux-arch, Rik van Riel, Gleb Natapov, kvm,
Konrad Rzeszutek Wilk, Peter Zijlstra, Scott J Norton, x86,
Paolo Bonzini, linux-kernel, virtualization, Ingo Molnar,
Chegu Vinod, David Vrabel, H. Peter Anvin, xen-devel,
Thomas Gleixner, Paul E. McKenney, Linus Torvalds, Oleg Nesterov,
Aswin Chandramouleeswaran
[-- Attachment #1: Type: text/plain, Size: 1194 bytes --]
On 04/07/2014 01:51 PM, Raghavendra K T wrote:
> On 04/07/2014 10:08 PM, Waiman Long wrote:
>> On 04/07/2014 02:14 AM, Raghavendra K T wrote:
> [...]
>>> But I am seeing hang in overcommit cases. Gdb showed that many vcpus
>>> are halted and there was no progress. Suspecting the problem /race with
>>> halting, I removed the halt() part of kvm_hibernate(). I am yet to
>>> take a closer look at the code on halt() related changes.
>>
>> It seems like there may still be race conditions where the current code
>> is not handling correctly. I will look into that to see where the
>> problem is. BTW, what test do you use to produce the hang condition?
>
> Running ebizzy on 2 of the vms simultaneously (for sometime in
> repeated loop) could reproduce it.
>
Yes, I am able to reproduce the hang problem with ebizzy. BTW, could you
try to apply the attached patch file on top of the v8 patch series to
see if it can fix the hang problem?
>
>> What is the baseline for the performance improvement? Is it without the
>> unfair lock and PV qspinlock?
>
> Baseline was 3.14-rc8 without any of the qspin patch series.
>
Does the baseline have PV ticketlock or without any PV support?
-Longman
[-- Attachment #2: 0011 --]
[-- Type: text/plain, Size: 4725 bytes --]
diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index a35cd02..825c535 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -717,9 +717,10 @@ static __always_inline void __queue_kick_cpu(int cpu)
PVOP_VCALL1(pv_lock_ops.kick_cpu, cpu);
}
-static __always_inline void __queue_hibernate(enum pv_lock_stats type)
+static __always_inline void
+__queue_hibernate(enum pv_lock_stats type, s8 *state, s8 sval)
{
- PVOP_VCALL1(pv_lock_ops.hibernate, type);
+ PVOP_VCALL3(pv_lock_ops.hibernate, type, state, sval);
}
static __always_inline void __queue_lockstat(enum pv_lock_stats type)
diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
index a8564b9..0e204dd 100644
--- a/arch/x86/include/asm/paravirt_types.h
+++ b/arch/x86/include/asm/paravirt_types.h
@@ -346,7 +346,7 @@ enum pv_lock_stats {
struct pv_lock_ops {
#ifdef CONFIG_QUEUE_SPINLOCK
void (*kick_cpu)(int cpu);
- void (*hibernate)(enum pv_lock_stats type);
+ void (*hibernate)(enum pv_lock_stats type, s8 *state, s8 sval);
void (*lockstat)(enum pv_lock_stats type);
#else
struct paravirt_callee_save lock_spinning;
diff --git a/arch/x86/include/asm/pvqspinlock.h b/arch/x86/include/asm/pvqspinlock.h
index a632dcb..4b33769 100644
--- a/arch/x86/include/asm/pvqspinlock.h
+++ b/arch/x86/include/asm/pvqspinlock.h
@@ -134,7 +134,7 @@ static __always_inline void pv_head_spin_check(struct pv_qvars *pv, int *count,
*count = 0;
return;
}
- __queue_hibernate(PV_HALT_QHEAD);
+ __queue_hibernate(PV_HALT_QHEAD, &pv->cpustate, PV_CPU_HALTED);
__queue_lockstat((pv->cpustate == PV_CPU_KICKED)
? PV_WAKE_KICKED : PV_WAKE_SPURIOUS);
ACCESS_ONCE(pv->cpustate) = PV_CPU_ACTIVE;
@@ -169,7 +169,7 @@ static __always_inline void pv_queue_spin_check(struct pv_qvars *pv, int *count)
* pv_next_node_check pv_queue_spin_check
* ------------------ -------------------
* [1] qhead = true [3] cpustate = PV_CPU_HALTED
- * barrier() barrier()
+ * smp_mb() smp_mb()
* [2] if (cpustate [4] if (qhead)
* == PV_CPU_HALTED)
*
@@ -178,9 +178,10 @@ static __always_inline void pv_queue_spin_check(struct pv_qvars *pv, int *count)
* _QLOCK_LOCKED_SLOWPATH may or may not be set
* 3,4,1,2 - the CPU is halt and _QLOCK_LOCKED_SLOWPATH is set
*/
- barrier();
+ smp_mb();
if (!ACCESS_ONCE(pv->qhead)) {
- __queue_hibernate(PV_HALT_QNODE);
+ __queue_hibernate(PV_HALT_QNODE, &pv->cpustate,
+ PV_CPU_HALTED);
__queue_lockstat((pv->cpustate == PV_CPU_KICKED)
? PV_WAKE_KICKED : PV_WAKE_SPURIOUS);
} else {
@@ -208,7 +209,7 @@ pv_next_node_check(struct pv_qvars *pv, struct qspinlock *lock)
/*
* Make sure qhead flag is visible before checking the cpustate flag
*/
- barrier();
+ smp_mb();
if (ACCESS_ONCE(pv->cpustate) == PV_CPU_HALTED)
ACCESS_ONCE(((union arch_qspinlock *)lock)->lock)
= _QLOCK_LOCKED_SLOWPATH;
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index 7d97e58..ce4b74b 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -880,23 +880,29 @@ static void kvm_kick_cpu_stats(int cpu)
/*
* Halt the current CPU & release it back to the host
*/
-static void kvm_hibernate(enum pv_lock_stats type)
+static void kvm_hibernate(enum pv_lock_stats type, s8 *state, s8 sval)
{
unsigned long flags;
if (in_nmi())
return;
- kvm_halt_stats(type);
/*
* Make sure an interrupt handler can't upset things in a
* partially setup state.
*/
local_irq_save(flags);
+ /*
+ * Don't halt if the CPU state has been changed.
+ */
+ if (ACCESS_ONCE(*state) != sval)
+ goto out;
+ kvm_halt_stats(type);
if (arch_irqs_disabled_flags(flags))
halt();
else
safe_halt();
+out:
local_irq_restore(flags);
}
#endif /* !CONFIG_QUEUE_SPINLOCK */
diff --git a/arch/x86/xen/spinlock.c b/arch/x86/xen/spinlock.c
index 6bbe798..c597bbd 100644
--- a/arch/x86/xen/spinlock.c
+++ b/arch/x86/xen/spinlock.c
@@ -271,7 +271,7 @@ static void xen_kick_cpu(int cpu)
/*
* Halt the current CPU & release it back to the host
*/
-static void xen_hibernate(enum pv_lock_stats type)
+static void xen_hibernate(enum pv_lock_stats type, s8 *state, s8 sval)
{
int irq = __this_cpu_read(lock_kicker_irq);
unsigned long flags;
@@ -292,7 +292,11 @@ static void xen_hibernate(enum pv_lock_stats type)
/* Allow interrupts while blocked */
local_irq_restore(flags);
-
+ /*
+ * Don't halt if the CPU state has been changed.
+ */
+ if (ACCESS_ONCE(*state) != sval)
+ return;
/*
* If an interrupt happens here, it will leave the wakeup irq
* pending, which will cause xen_poll_irq() to return
[-- Attachment #3: Type: text/plain, Size: 183 bytes --]
_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization
^ permalink raw reply related [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
2014-04-07 17:51 ` Raghavendra K T
(?)
@ 2014-04-08 19:15 ` Waiman Long
-1 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-08 19:15 UTC (permalink / raw)
To: Raghavendra K T
Cc: linux-arch, Gleb Natapov, kvm, Peter Zijlstra, Scott J Norton,
x86, Paolo Bonzini, linux-kernel, virtualization, Ingo Molnar,
Chegu Vinod, David Vrabel, H. Peter Anvin, xen-devel,
Thomas Gleixner, Paul E. McKenney, Linus Torvalds, Oleg Nesterov,
Aswin Chandramouleeswaran
[-- Attachment #1: Type: text/plain, Size: 1194 bytes --]
On 04/07/2014 01:51 PM, Raghavendra K T wrote:
> On 04/07/2014 10:08 PM, Waiman Long wrote:
>> On 04/07/2014 02:14 AM, Raghavendra K T wrote:
> [...]
>>> But I am seeing hang in overcommit cases. Gdb showed that many vcpus
>>> are halted and there was no progress. Suspecting the problem /race with
>>> halting, I removed the halt() part of kvm_hibernate(). I am yet to
>>> take a closer look at the code on halt() related changes.
>>
>> It seems like there may still be race conditions where the current code
>> is not handling correctly. I will look into that to see where the
>> problem is. BTW, what test do you use to produce the hang condition?
>
> Running ebizzy on 2 of the vms simultaneously (for sometime in
> repeated loop) could reproduce it.
>
Yes, I am able to reproduce the hang problem with ebizzy. BTW, could you
try to apply the attached patch file on top of the v8 patch series to
see if it can fix the hang problem?
>
>> What is the baseline for the performance improvement? Is it without the
>> unfair lock and PV qspinlock?
>
> Baseline was 3.14-rc8 without any of the qspin patch series.
>
Does the baseline have PV ticketlock or without any PV support?
-Longman
[-- Attachment #2: 0011 --]
[-- Type: text/plain, Size: 4725 bytes --]
diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index a35cd02..825c535 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -717,9 +717,10 @@ static __always_inline void __queue_kick_cpu(int cpu)
PVOP_VCALL1(pv_lock_ops.kick_cpu, cpu);
}
-static __always_inline void __queue_hibernate(enum pv_lock_stats type)
+static __always_inline void
+__queue_hibernate(enum pv_lock_stats type, s8 *state, s8 sval)
{
- PVOP_VCALL1(pv_lock_ops.hibernate, type);
+ PVOP_VCALL3(pv_lock_ops.hibernate, type, state, sval);
}
static __always_inline void __queue_lockstat(enum pv_lock_stats type)
diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
index a8564b9..0e204dd 100644
--- a/arch/x86/include/asm/paravirt_types.h
+++ b/arch/x86/include/asm/paravirt_types.h
@@ -346,7 +346,7 @@ enum pv_lock_stats {
struct pv_lock_ops {
#ifdef CONFIG_QUEUE_SPINLOCK
void (*kick_cpu)(int cpu);
- void (*hibernate)(enum pv_lock_stats type);
+ void (*hibernate)(enum pv_lock_stats type, s8 *state, s8 sval);
void (*lockstat)(enum pv_lock_stats type);
#else
struct paravirt_callee_save lock_spinning;
diff --git a/arch/x86/include/asm/pvqspinlock.h b/arch/x86/include/asm/pvqspinlock.h
index a632dcb..4b33769 100644
--- a/arch/x86/include/asm/pvqspinlock.h
+++ b/arch/x86/include/asm/pvqspinlock.h
@@ -134,7 +134,7 @@ static __always_inline void pv_head_spin_check(struct pv_qvars *pv, int *count,
*count = 0;
return;
}
- __queue_hibernate(PV_HALT_QHEAD);
+ __queue_hibernate(PV_HALT_QHEAD, &pv->cpustate, PV_CPU_HALTED);
__queue_lockstat((pv->cpustate == PV_CPU_KICKED)
? PV_WAKE_KICKED : PV_WAKE_SPURIOUS);
ACCESS_ONCE(pv->cpustate) = PV_CPU_ACTIVE;
@@ -169,7 +169,7 @@ static __always_inline void pv_queue_spin_check(struct pv_qvars *pv, int *count)
* pv_next_node_check pv_queue_spin_check
* ------------------ -------------------
* [1] qhead = true [3] cpustate = PV_CPU_HALTED
- * barrier() barrier()
+ * smp_mb() smp_mb()
* [2] if (cpustate [4] if (qhead)
* == PV_CPU_HALTED)
*
@@ -178,9 +178,10 @@ static __always_inline void pv_queue_spin_check(struct pv_qvars *pv, int *count)
* _QLOCK_LOCKED_SLOWPATH may or may not be set
* 3,4,1,2 - the CPU is halt and _QLOCK_LOCKED_SLOWPATH is set
*/
- barrier();
+ smp_mb();
if (!ACCESS_ONCE(pv->qhead)) {
- __queue_hibernate(PV_HALT_QNODE);
+ __queue_hibernate(PV_HALT_QNODE, &pv->cpustate,
+ PV_CPU_HALTED);
__queue_lockstat((pv->cpustate == PV_CPU_KICKED)
? PV_WAKE_KICKED : PV_WAKE_SPURIOUS);
} else {
@@ -208,7 +209,7 @@ pv_next_node_check(struct pv_qvars *pv, struct qspinlock *lock)
/*
* Make sure qhead flag is visible before checking the cpustate flag
*/
- barrier();
+ smp_mb();
if (ACCESS_ONCE(pv->cpustate) == PV_CPU_HALTED)
ACCESS_ONCE(((union arch_qspinlock *)lock)->lock)
= _QLOCK_LOCKED_SLOWPATH;
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index 7d97e58..ce4b74b 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -880,23 +880,29 @@ static void kvm_kick_cpu_stats(int cpu)
/*
* Halt the current CPU & release it back to the host
*/
-static void kvm_hibernate(enum pv_lock_stats type)
+static void kvm_hibernate(enum pv_lock_stats type, s8 *state, s8 sval)
{
unsigned long flags;
if (in_nmi())
return;
- kvm_halt_stats(type);
/*
* Make sure an interrupt handler can't upset things in a
* partially setup state.
*/
local_irq_save(flags);
+ /*
+ * Don't halt if the CPU state has been changed.
+ */
+ if (ACCESS_ONCE(*state) != sval)
+ goto out;
+ kvm_halt_stats(type);
if (arch_irqs_disabled_flags(flags))
halt();
else
safe_halt();
+out:
local_irq_restore(flags);
}
#endif /* !CONFIG_QUEUE_SPINLOCK */
diff --git a/arch/x86/xen/spinlock.c b/arch/x86/xen/spinlock.c
index 6bbe798..c597bbd 100644
--- a/arch/x86/xen/spinlock.c
+++ b/arch/x86/xen/spinlock.c
@@ -271,7 +271,7 @@ static void xen_kick_cpu(int cpu)
/*
* Halt the current CPU & release it back to the host
*/
-static void xen_hibernate(enum pv_lock_stats type)
+static void xen_hibernate(enum pv_lock_stats type, s8 *state, s8 sval)
{
int irq = __this_cpu_read(lock_kicker_irq);
unsigned long flags;
@@ -292,7 +292,11 @@ static void xen_hibernate(enum pv_lock_stats type)
/* Allow interrupts while blocked */
local_irq_restore(flags);
-
+ /*
+ * Don't halt if the CPU state has been changed.
+ */
+ if (ACCESS_ONCE(*state) != sval)
+ return;
/*
* If an interrupt happens here, it will leave the wakeup irq
* pending, which will cause xen_poll_irq() to return
[-- Attachment #3: Type: text/plain, Size: 126 bytes --]
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xen.org
http://lists.xen.org/xen-devel
^ permalink raw reply related [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
2014-04-08 19:15 ` Waiman Long
` (2 preceding siblings ...)
(?)
@ 2014-04-09 12:08 ` Raghavendra K T
-1 siblings, 0 replies; 109+ messages in thread
From: Raghavendra K T @ 2014-04-09 12:08 UTC (permalink / raw)
To: Waiman Long
Cc: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, Peter Zijlstra,
linux-arch, x86, linux-kernel, virtualization, xen-devel, kvm,
Paolo Bonzini, Konrad Rzeszutek Wilk, Paul E. McKenney,
Rik van Riel, Linus Torvalds, David Vrabel, Oleg Nesterov,
Gleb Natapov, Aswin Chandramouleeswaran, Scott J Norton,
Chegu Vinod
On 04/09/2014 12:45 AM, Waiman Long wrote:
> Yes, I am able to reproduce the hang problem with ebizzy. BTW, could you
> try to apply the attached patch file on top of the v8 patch series to
> see if it can fix the hang problem?
Ran the benchmarks with the fix and I am not seeing hang so far.
ebizzy improvements.
0.5x 2.7345
1x -10.6593
1.5x 35.6962
2x 88.0461
dbench improvements
0.5x 3.2428
1x 1.1514
1.5x 5.5071
2x 23.8700
( I will have to restest on ebizzy 1x reression but overall performance
numbers look good).
>> Baseline was 3.14-rc8 without any of the qspin patch series.
>>
>
> Does the baseline have PV ticketlock or without any PV support?
baseline had PV ticketlock enabled.
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
2014-04-08 19:15 ` Waiman Long
(?)
(?)
@ 2014-04-09 12:08 ` Raghavendra K T
-1 siblings, 0 replies; 109+ messages in thread
From: Raghavendra K T @ 2014-04-09 12:08 UTC (permalink / raw)
To: Waiman Long
Cc: linux-arch, Rik van Riel, Gleb Natapov, kvm,
Konrad Rzeszutek Wilk, Peter Zijlstra, Scott J Norton, x86,
Paolo Bonzini, linux-kernel, virtualization, Ingo Molnar,
Chegu Vinod, David Vrabel, H. Peter Anvin, xen-devel,
Thomas Gleixner, Paul E. McKenney, Linus Torvalds, Oleg Nesterov,
Aswin Chandramouleeswaran
On 04/09/2014 12:45 AM, Waiman Long wrote:
> Yes, I am able to reproduce the hang problem with ebizzy. BTW, could you
> try to apply the attached patch file on top of the v8 patch series to
> see if it can fix the hang problem?
Ran the benchmarks with the fix and I am not seeing hang so far.
ebizzy improvements.
0.5x 2.7345
1x -10.6593
1.5x 35.6962
2x 88.0461
dbench improvements
0.5x 3.2428
1x 1.1514
1.5x 5.5071
2x 23.8700
( I will have to restest on ebizzy 1x reression but overall performance
numbers look good).
>> Baseline was 3.14-rc8 without any of the qspin patch series.
>>
>
> Does the baseline have PV ticketlock or without any PV support?
baseline had PV ticketlock enabled.
^ permalink raw reply [flat|nested] 109+ messages in thread
* Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
2014-04-08 19:15 ` Waiman Long
(?)
@ 2014-04-09 12:08 ` Raghavendra K T
-1 siblings, 0 replies; 109+ messages in thread
From: Raghavendra K T @ 2014-04-09 12:08 UTC (permalink / raw)
To: Waiman Long
Cc: linux-arch, Gleb Natapov, kvm, Peter Zijlstra, Scott J Norton,
x86, Paolo Bonzini, linux-kernel, virtualization, Ingo Molnar,
Chegu Vinod, David Vrabel, H. Peter Anvin, xen-devel,
Thomas Gleixner, Paul E. McKenney, Linus Torvalds, Oleg Nesterov,
Aswin Chandramouleeswaran
On 04/09/2014 12:45 AM, Waiman Long wrote:
> Yes, I am able to reproduce the hang problem with ebizzy. BTW, could you
> try to apply the attached patch file on top of the v8 patch series to
> see if it can fix the hang problem?
Ran the benchmarks with the fix and I am not seeing hang so far.
ebizzy improvements.
0.5x 2.7345
1x -10.6593
1.5x 35.6962
2x 88.0461
dbench improvements
0.5x 3.2428
1x 1.1514
1.5x 5.5071
2x 23.8700
( I will have to restest on ebizzy 1x reression but overall performance
numbers look good).
>> Baseline was 3.14-rc8 without any of the qspin patch series.
>>
>
> Does the baseline have PV ticketlock or without any PV support?
baseline had PV ticketlock enabled.
^ permalink raw reply [flat|nested] 109+ messages in thread
* [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
@ 2014-04-02 13:27 Waiman Long
0 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-02 13:27 UTC (permalink / raw)
To: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, Peter Zijlstra
Cc: linux-arch, Waiman Long, Raghavendra K T, Gleb Natapov, kvm,
Aswin Chandramouleeswaran, Scott J Norton, x86, Paolo Bonzini,
linux-kernel, virtualization, Chegu Vinod, David Vrabel,
Oleg Nesterov, xen-devel, Paul E. McKenney, Linus Torvalds
N.B. Sorry for the duplicate. This patch series were resent as the
original one was rejected by the vger.kernel.org list server
due to long header. There is no change in content.
v7->v8:
- Remove one unneeded atomic operation from the slowpath, thus
improving performance.
- Simplify some of the codes and add more comments.
- Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
unfair lock.
- Reduce unfair lock slowpath lock stealing frequency depending
on its distance from the queue head.
- Add performance data for IvyBridge-EX CPU.
v6->v7:
- Remove an atomic operation from the 2-task contending code
- Shorten the names of some macros
- Make the queue waiter to attempt to steal lock when unfair lock is
enabled.
- Remove lock holder kick from the PV code and fix a race condition
- Run the unfair lock & PV code on overcommitted KVM guests to collect
performance data.
v5->v6:
- Change the optimized 2-task contending code to make it fairer at the
expense of a bit of performance.
- Add a patch to support unfair queue spinlock for Xen.
- Modify the PV qspinlock code to follow what was done in the PV
ticketlock.
- Add performance data for the unfair lock as well as the PV
support code.
v4->v5:
- Move the optimized 2-task contending code to the generic file to
enable more architectures to use it without code duplication.
- Address some of the style-related comments by PeterZ.
- Allow the use of unfair queue spinlock in a real para-virtualized
execution environment.
- Add para-virtualization support to the qspinlock code by ensuring
that the lock holder and queue head stay alive as much as possible.
v3->v4:
- Remove debugging code and fix a configuration error
- Simplify the qspinlock structure and streamline the code to make it
perform a bit better
- Add an x86 version of asm/qspinlock.h for holding x86 specific
optimization.
- Add an optimized x86 code path for 2 contending tasks to improve
low contention performance.
v2->v3:
- Simplify the code by using numerous mode only without an unfair option.
- Use the latest smp_load_acquire()/smp_store_release() barriers.
- Move the queue spinlock code to kernel/locking.
- Make the use of queue spinlock the default for x86-64 without user
configuration.
- Additional performance tuning.
v1->v2:
- Add some more comments to document what the code does.
- Add a numerous CPU mode to support >= 16K CPUs
- Add a configuration option to allow lock stealing which can further
improve performance in many cases.
- Enable wakeup of queue head CPU at unlock time for non-numerous
CPU mode.
This patch set has 3 different sections:
1) Patches 1-4: Introduces a queue-based spinlock implementation that
can replace the default ticket spinlock without increasing the
size of the spinlock data structure. As a result, critical kernel
data structures that embed spinlock won't increase in size and
break data alignments.
2) Patches 5-6: Enables the use of unfair queue spinlock in a
para-virtualized execution environment. This can resolve some
of the locking related performance issues due to the fact that
the next CPU to get the lock may have been scheduled out for a
period of time.
3) Patches 7-10: Enable qspinlock para-virtualization support
by halting the waiting CPUs after spinning for a certain amount of
time. The unlock code will detect the a sleeping waiter and wake it
up. This is essentially the same logic as the PV ticketlock code.
The queue spinlock has slightly better performance than the ticket
spinlock in uncontended case. Its performance can be much better
with moderate to heavy contention. This patch has the potential of
improving the performance of all the workloads that have moderate to
heavy spinlock contention.
The queue spinlock is especially suitable for NUMA machines with at
least 2 sockets, though noticeable performance benefit probably won't
show up in machines with less than 4 sockets.
The purpose of this patch set is not to solve any particular spinlock
contention problems. Those need to be solved by refactoring the code
to make more efficient use of the lock or finer granularity ones. The
main purpose is to make the lock contention problems more tolerable
until someone can spend the time and effort to fix them.
To illustrate the performance benefit of the queue spinlock, the
ebizzy benchmark was run with the -m option in two different computers:
Test machine ticket-lock queue-lock
------------ ----------- ----------
4-socket 40-core 2316 rec/s 2899 rec/s
Westmere-EX (HT off)
2-socket 12-core 2130 rec/s 2176 rec/s
Westmere-EP (HT on)
Waiman Long (10):
qspinlock: A generic 4-byte queue spinlock implementation
qspinlock, x86: Enable x86-64 to use queue spinlock
qspinlock: More optimized code for smaller NR_CPUS
qspinlock: Optimized code path for 2 contending tasks
pvqspinlock, x86: Allow unfair spinlock in a PV guest
pvqspinlock: Enable lock stealing in queue lock waiters
pvqspinlock, x86: Rename paravirt_ticketlocks_enabled
pvqspinlock, x86: Add qspinlock para-virtualization support
pvqspinlock, x86: Enable qspinlock PV support for KVM
pvqspinlock, x86: Enable qspinlock PV support for XEN
arch/x86/Kconfig | 12 +
arch/x86/include/asm/paravirt.h | 17 +-
arch/x86/include/asm/paravirt_types.h | 16 +
arch/x86/include/asm/pvqspinlock.h | 260 +++++++++
arch/x86/include/asm/qspinlock.h | 191 +++++++
arch/x86/include/asm/spinlock.h | 9 +-
arch/x86/include/asm/spinlock_types.h | 4 +
arch/x86/kernel/Makefile | 1 +
arch/x86/kernel/kvm.c | 113 ++++-
arch/x86/kernel/paravirt-spinlocks.c | 36 ++-
arch/x86/xen/spinlock.c | 121 ++++-
include/asm-generic/qspinlock.h | 126 ++++
include/asm-generic/qspinlock_types.h | 63 ++
kernel/Kconfig.locks | 7 +
kernel/locking/Makefile | 1 +
kernel/locking/qspinlock.c | 1010 +++++++++++++++++++++++++++++++++
16 files changed, 1975 insertions(+), 12 deletions(-)
create mode 100644 arch/x86/include/asm/pvqspinlock.h
create mode 100644 arch/x86/include/asm/qspinlock.h
create mode 100644 include/asm-generic/qspinlock.h
create mode 100644 include/asm-generic/qspinlock_types.h
create mode 100644 kernel/locking/qspinlock.c
^ permalink raw reply [flat|nested] 109+ messages in thread
* [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
@ 2014-04-01 20:47 Waiman Long
0 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-01 20:47 UTC (permalink / raw)
To: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, Arnd Bergmann,
Peter Zijlstra
Cc: Jeremy Fitzhardinge, Raghavendra K T, kvm, virtualization,
Andi Kleen, Michel Lespinasse, Alok Kataria, linux-arch,
Gleb Natapov, x86, xen-devel, Paul E. McKenney, Rik van Riel,
Konrad Rzeszutek Wilk, Scott J Norton, Steven Rostedt,
Chris Wright, Oleg Nesterov, Boris Ostrovsky,
Aswin Chandramouleeswaran, Chegu Vinod, Waiman Long,
linux-kernel, David Vrabel, Andrew
v7->v8:
- Remove one unneeded atomic operation from the slowpath, thus
improving performance.
- Simplify some of the codes and add more comments.
- Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
unfair lock.
- Reduce unfair lock slowpath lock stealing frequency depending
on its distance from the queue head.
- Add performance data for IvyBridge-EX CPU.
v6->v7:
- Remove an atomic operation from the 2-task contending code
- Shorten the names of some macros
- Make the queue waiter to attempt to steal lock when unfair lock is
enabled.
- Remove lock holder kick from the PV code and fix a race condition
- Run the unfair lock & PV code on overcommitted KVM guests to collect
performance data.
v5->v6:
- Change the optimized 2-task contending code to make it fairer at the
expense of a bit of performance.
- Add a patch to support unfair queue spinlock for Xen.
- Modify the PV qspinlock code to follow what was done in the PV
ticketlock.
- Add performance data for the unfair lock as well as the PV
support code.
v4->v5:
- Move the optimized 2-task contending code to the generic file to
enable more architectures to use it without code duplication.
- Address some of the style-related comments by PeterZ.
- Allow the use of unfair queue spinlock in a real para-virtualized
execution environment.
- Add para-virtualization support to the qspinlock code by ensuring
that the lock holder and queue head stay alive as much as possible.
v3->v4:
- Remove debugging code and fix a configuration error
- Simplify the qspinlock structure and streamline the code to make it
perform a bit better
- Add an x86 version of asm/qspinlock.h for holding x86 specific
optimization.
- Add an optimized x86 code path for 2 contending tasks to improve
low contention performance.
v2->v3:
- Simplify the code by using numerous mode only without an unfair option.
- Use the latest smp_load_acquire()/smp_store_release() barriers.
- Move the queue spinlock code to kernel/locking.
- Make the use of queue spinlock the default for x86-64 without user
configuration.
- Additional performance tuning.
v1->v2:
- Add some more comments to document what the code does.
- Add a numerous CPU mode to support >= 16K CPUs
- Add a configuration option to allow lock stealing which can further
improve performance in many cases.
- Enable wakeup of queue head CPU at unlock time for non-numerous
CPU mode.
This patch set has 3 different sections:
1) Patches 1-4: Introduces a queue-based spinlock implementation that
can replace the default ticket spinlock without increasing the
size of the spinlock data structure. As a result, critical kernel
data structures that embed spinlock won't increase in size and
break data alignments.
2) Patches 5-6: Enables the use of unfair queue spinlock in a
para-virtualized execution environment. This can resolve some
of the locking related performance issues due to the fact that
the next CPU to get the lock may have been scheduled out for a
period of time.
3) Patches 7-10: Enable qspinlock para-virtualization support
by halting the waiting CPUs after spinning for a certain amount of
time. The unlock code will detect the a sleeping waiter and wake it
up. This is essentially the same logic as the PV ticketlock code.
The queue spinlock has slightly better performance than the ticket
spinlock in uncontended case. Its performance can be much better
with moderate to heavy contention. This patch has the potential of
improving the performance of all the workloads that have moderate to
heavy spinlock contention.
The queue spinlock is especially suitable for NUMA machines with at
least 2 sockets, though noticeable performance benefit probably won't
show up in machines with less than 4 sockets.
The purpose of this patch set is not to solve any particular spinlock
contention problems. Those need to be solved by refactoring the code
to make more efficient use of the lock or finer granularity ones. The
main purpose is to make the lock contention problems more tolerable
until someone can spend the time and effort to fix them.
To illustrate the performance benefit of the queue spinlock, the
ebizzy benchmark was run with the -m option in two different computers:
Test machine ticket-lock queue-lock
------------ ----------- ----------
4-socket 40-core 2316 rec/s 2899 rec/s
Westmere-EX (HT off)
2-socket 12-core 2130 rec/s 2176 rec/s
Westmere-EP (HT on)
Waiman Long (10):
qspinlock: A generic 4-byte queue spinlock implementation
qspinlock, x86: Enable x86-64 to use queue spinlock
qspinlock: More optimized code for smaller NR_CPUS
qspinlock: Optimized code path for 2 contending tasks
pvqspinlock, x86: Allow unfair spinlock in a PV guest
pvqspinlock: Enable lock stealing in queue lock waiters
pvqspinlock, x86: Rename paravirt_ticketlocks_enabled
pvqspinlock, x86: Add qspinlock para-virtualization support
pvqspinlock, x86: Enable qspinlock PV support for KVM
pvqspinlock, x86: Enable qspinlock PV support for XEN
arch/x86/Kconfig | 12 +
arch/x86/include/asm/paravirt.h | 17 +-
arch/x86/include/asm/paravirt_types.h | 16 +
arch/x86/include/asm/pvqspinlock.h | 260 +++++++++
arch/x86/include/asm/qspinlock.h | 191 +++++++
arch/x86/include/asm/spinlock.h | 9 +-
arch/x86/include/asm/spinlock_types.h | 4 +
arch/x86/kernel/Makefile | 1 +
arch/x86/kernel/kvm.c | 113 ++++-
arch/x86/kernel/paravirt-spinlocks.c | 36 ++-
arch/x86/xen/spinlock.c | 121 ++++-
include/asm-generic/qspinlock.h | 126 ++++
include/asm-generic/qspinlock_types.h | 63 ++
kernel/Kconfig.locks | 7 +
kernel/locking/Makefile | 1 +
kernel/locking/qspinlock.c | 1010 +++++++++++++++++++++++++++++++++
16 files changed, 1975 insertions(+), 12 deletions(-)
create mode 100644 arch/x86/include/asm/pvqspinlock.h
create mode 100644 arch/x86/include/asm/qspinlock.h
create mode 100644 include/asm-generic/qspinlock.h
create mode 100644 include/asm-generic/qspinlock_types.h
create mode 100644 kernel/locking/qspinlock.c
^ permalink raw reply [flat|nested] 109+ messages in thread
* [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support
@ 2014-04-01 20:47 Waiman Long
0 siblings, 0 replies; 109+ messages in thread
From: Waiman Long @ 2014-04-01 20:47 UTC (permalink / raw)
To: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, Arnd Bergmann,
Peter Zijlstra
Cc: Jeremy Fitzhardinge, Raghavendra K T, kvm, virtualization,
Andi Kleen, Michel Lespinasse, Alok Kataria, linux-arch,
Gleb Natapov, x86, xen-devel, Paul E. McKenney, Scott J Norton,
Rusty Russell, Steven Rostedt, Chris Wright, Oleg Nesterov,
Boris Ostrovsky, Aswin Chandramouleeswaran, Chegu Vinod,
Waiman Long, linux-kernel, David Vrabel, Andrew Morton, Linu
v7->v8:
- Remove one unneeded atomic operation from the slowpath, thus
improving performance.
- Simplify some of the codes and add more comments.
- Test for X86_FEATURE_HYPERVISOR CPU feature bit to enable/disable
unfair lock.
- Reduce unfair lock slowpath lock stealing frequency depending
on its distance from the queue head.
- Add performance data for IvyBridge-EX CPU.
v6->v7:
- Remove an atomic operation from the 2-task contending code
- Shorten the names of some macros
- Make the queue waiter to attempt to steal lock when unfair lock is
enabled.
- Remove lock holder kick from the PV code and fix a race condition
- Run the unfair lock & PV code on overcommitted KVM guests to collect
performance data.
v5->v6:
- Change the optimized 2-task contending code to make it fairer at the
expense of a bit of performance.
- Add a patch to support unfair queue spinlock for Xen.
- Modify the PV qspinlock code to follow what was done in the PV
ticketlock.
- Add performance data for the unfair lock as well as the PV
support code.
v4->v5:
- Move the optimized 2-task contending code to the generic file to
enable more architectures to use it without code duplication.
- Address some of the style-related comments by PeterZ.
- Allow the use of unfair queue spinlock in a real para-virtualized
execution environment.
- Add para-virtualization support to the qspinlock code by ensuring
that the lock holder and queue head stay alive as much as possible.
v3->v4:
- Remove debugging code and fix a configuration error
- Simplify the qspinlock structure and streamline the code to make it
perform a bit better
- Add an x86 version of asm/qspinlock.h for holding x86 specific
optimization.
- Add an optimized x86 code path for 2 contending tasks to improve
low contention performance.
v2->v3:
- Simplify the code by using numerous mode only without an unfair option.
- Use the latest smp_load_acquire()/smp_store_release() barriers.
- Move the queue spinlock code to kernel/locking.
- Make the use of queue spinlock the default for x86-64 without user
configuration.
- Additional performance tuning.
v1->v2:
- Add some more comments to document what the code does.
- Add a numerous CPU mode to support >= 16K CPUs
- Add a configuration option to allow lock stealing which can further
improve performance in many cases.
- Enable wakeup of queue head CPU at unlock time for non-numerous
CPU mode.
This patch set has 3 different sections:
1) Patches 1-4: Introduces a queue-based spinlock implementation that
can replace the default ticket spinlock without increasing the
size of the spinlock data structure. As a result, critical kernel
data structures that embed spinlock won't increase in size and
break data alignments.
2) Patches 5-6: Enables the use of unfair queue spinlock in a
para-virtualized execution environment. This can resolve some
of the locking related performance issues due to the fact that
the next CPU to get the lock may have been scheduled out for a
period of time.
3) Patches 7-10: Enable qspinlock para-virtualization support
by halting the waiting CPUs after spinning for a certain amount of
time. The unlock code will detect the a sleeping waiter and wake it
up. This is essentially the same logic as the PV ticketlock code.
The queue spinlock has slightly better performance than the ticket
spinlock in uncontended case. Its performance can be much better
with moderate to heavy contention. This patch has the potential of
improving the performance of all the workloads that have moderate to
heavy spinlock contention.
The queue spinlock is especially suitable for NUMA machines with at
least 2 sockets, though noticeable performance benefit probably won't
show up in machines with less than 4 sockets.
The purpose of this patch set is not to solve any particular spinlock
contention problems. Those need to be solved by refactoring the code
to make more efficient use of the lock or finer granularity ones. The
main purpose is to make the lock contention problems more tolerable
until someone can spend the time and effort to fix them.
To illustrate the performance benefit of the queue spinlock, the
ebizzy benchmark was run with the -m option in two different computers:
Test machine ticket-lock queue-lock
------------ ----------- ----------
4-socket 40-core 2316 rec/s 2899 rec/s
Westmere-EX (HT off)
2-socket 12-core 2130 rec/s 2176 rec/s
Westmere-EP (HT on)
Waiman Long (10):
qspinlock: A generic 4-byte queue spinlock implementation
qspinlock, x86: Enable x86-64 to use queue spinlock
qspinlock: More optimized code for smaller NR_CPUS
qspinlock: Optimized code path for 2 contending tasks
pvqspinlock, x86: Allow unfair spinlock in a PV guest
pvqspinlock: Enable lock stealing in queue lock waiters
pvqspinlock, x86: Rename paravirt_ticketlocks_enabled
pvqspinlock, x86: Add qspinlock para-virtualization support
pvqspinlock, x86: Enable qspinlock PV support for KVM
pvqspinlock, x86: Enable qspinlock PV support for XEN
arch/x86/Kconfig | 12 +
arch/x86/include/asm/paravirt.h | 17 +-
arch/x86/include/asm/paravirt_types.h | 16 +
arch/x86/include/asm/pvqspinlock.h | 260 +++++++++
arch/x86/include/asm/qspinlock.h | 191 +++++++
arch/x86/include/asm/spinlock.h | 9 +-
arch/x86/include/asm/spinlock_types.h | 4 +
arch/x86/kernel/Makefile | 1 +
arch/x86/kernel/kvm.c | 113 ++++-
arch/x86/kernel/paravirt-spinlocks.c | 36 ++-
arch/x86/xen/spinlock.c | 121 ++++-
include/asm-generic/qspinlock.h | 126 ++++
include/asm-generic/qspinlock_types.h | 63 ++
kernel/Kconfig.locks | 7 +
kernel/locking/Makefile | 1 +
kernel/locking/qspinlock.c | 1010 +++++++++++++++++++++++++++++++++
16 files changed, 1975 insertions(+), 12 deletions(-)
create mode 100644 arch/x86/include/asm/pvqspinlock.h
create mode 100644 arch/x86/include/asm/qspinlock.h
create mode 100644 include/asm-generic/qspinlock.h
create mode 100644 include/asm-generic/qspinlock_types.h
create mode 100644 kernel/locking/qspinlock.c
^ permalink raw reply [flat|nested] 109+ messages in thread
end of thread, other threads:[~2014-04-09 12:08 UTC | newest]
Thread overview: 109+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2014-04-02 13:27 [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support Waiman Long
2014-04-02 13:27 ` [PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation Waiman Long
2014-04-02 13:27 ` Waiman Long
2014-04-04 13:00 ` Peter Zijlstra
2014-04-04 13:00 ` Peter Zijlstra
2014-04-04 13:00 ` Peter Zijlstra
2014-04-04 14:59 ` Waiman Long
2014-04-04 14:59 ` Waiman Long
2014-04-04 14:59 ` Waiman Long
2014-04-04 17:53 ` Ingo Molnar
2014-04-04 17:53 ` Ingo Molnar
2014-04-04 17:53 ` Ingo Molnar
2014-04-07 14:16 ` Peter Zijlstra
2014-04-07 14:16 ` Peter Zijlstra
2014-04-07 14:16 ` Peter Zijlstra
2014-04-04 16:57 ` Konrad Rzeszutek Wilk
2014-04-04 16:57 ` Konrad Rzeszutek Wilk
2014-04-04 16:57 ` Konrad Rzeszutek Wilk
2014-04-04 17:08 ` Waiman Long
2014-04-04 17:08 ` Waiman Long
2014-04-04 17:08 ` Waiman Long
2014-04-04 17:54 ` Ingo Molnar
2014-04-04 17:54 ` Ingo Molnar
2014-04-04 17:54 ` Ingo Molnar
2014-04-07 14:09 ` Peter Zijlstra
2014-04-07 14:09 ` Peter Zijlstra
2014-04-07 16:59 ` Waiman Long
2014-04-07 16:59 ` Waiman Long
2014-04-07 16:59 ` Waiman Long
2014-04-07 14:09 ` Peter Zijlstra
2014-04-07 14:12 ` Peter Zijlstra
2014-04-07 14:12 ` Peter Zijlstra
2014-04-07 14:33 ` Konrad Rzeszutek Wilk
2014-04-07 14:33 ` Konrad Rzeszutek Wilk
2014-04-07 14:33 ` Konrad Rzeszutek Wilk
2014-04-07 14:12 ` Peter Zijlstra
2014-04-02 13:27 ` [PATCH v8 02/10] qspinlock, x86: Enable x86-64 to use queue spinlock Waiman Long
2014-04-02 13:27 ` Waiman Long
2014-04-02 13:27 ` [PATCH v8 03/10] qspinlock: More optimized code for smaller NR_CPUS Waiman Long
2014-04-02 13:27 ` Waiman Long
2014-04-02 13:27 ` [PATCH v8 04/10] qspinlock: Optimized code path for 2 contending tasks Waiman Long
2014-04-02 13:27 ` Waiman Long
2014-04-02 13:27 ` [PATCH v8 05/10] pvqspinlock, x86: Allow unfair spinlock in a PV guest Waiman Long
2014-04-02 13:27 ` Waiman Long
2014-04-02 13:27 ` [PATCH v8 06/10] pvqspinlock: Enable lock stealing in queue lock waiters Waiman Long
2014-04-02 13:27 ` Waiman Long
2014-04-02 13:27 ` [PATCH v8 07/10] pvqspinlock, x86: Rename paravirt_ticketlocks_enabled Waiman Long
2014-04-02 13:27 ` Waiman Long
2014-04-02 13:27 ` [PATCH v8 08/10] pvqspinlock, x86: Add qspinlock para-virtualization support Waiman Long
2014-04-02 13:27 ` Waiman Long
2014-04-02 13:27 ` [PATCH v8 09/10] pvqspinlock, x86: Enable qspinlock PV support for KVM Waiman Long
2014-04-02 13:27 ` Waiman Long
2014-04-02 13:27 ` [PATCH v8 10/10] pvqspinlock, x86: Enable qspinlock PV support for XEN Waiman Long
2014-04-02 13:27 ` Waiman Long
2014-04-02 14:39 ` Konrad Rzeszutek Wilk
2014-04-02 14:39 ` Konrad Rzeszutek Wilk
2014-04-02 20:38 ` Waiman Long
2014-04-02 20:38 ` Waiman Long
2014-04-02 14:32 ` [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support Konrad Rzeszutek Wilk
2014-04-02 14:32 ` Konrad Rzeszutek Wilk
2014-04-02 20:35 ` Waiman Long
2014-04-03 2:10 ` Waiman Long
2014-04-03 2:10 ` Waiman Long
2014-04-03 2:10 ` Waiman Long
2014-04-03 17:23 ` Konrad Rzeszutek Wilk
2014-04-03 17:23 ` Konrad Rzeszutek Wilk
2014-04-04 2:57 ` Waiman Long
2014-04-04 2:57 ` Waiman Long
2014-04-04 2:57 ` Waiman Long
2014-04-04 16:55 ` Konrad Rzeszutek Wilk
2014-04-04 16:55 ` Konrad Rzeszutek Wilk
2014-04-04 16:55 ` Konrad Rzeszutek Wilk
2014-04-04 16:55 ` Konrad Rzeszutek Wilk
2014-04-04 16:55 ` Konrad Rzeszutek Wilk
2014-04-04 17:13 ` Waiman Long
2014-04-04 17:13 ` Waiman Long
2014-04-04 17:13 ` Waiman Long
2014-04-04 17:58 ` Konrad Rzeszutek Wilk
2014-04-04 17:58 ` Konrad Rzeszutek Wilk
2014-04-04 17:58 ` Konrad Rzeszutek Wilk
2014-04-04 18:33 ` Konrad Rzeszutek Wilk
2014-04-04 18:33 ` Konrad Rzeszutek Wilk
2014-04-04 18:33 ` Konrad Rzeszutek Wilk
2014-04-04 18:14 ` Marcos E. Matsunaga
2014-04-04 18:14 ` Marcos E. Matsunaga
2014-04-04 18:14 ` Marcos E. Matsunaga
2014-04-03 17:23 ` Konrad Rzeszutek Wilk
2014-04-02 20:35 ` Waiman Long
2014-04-04 15:25 ` Konrad Rzeszutek Wilk
2014-04-04 15:25 ` Konrad Rzeszutek Wilk
2014-04-04 15:25 ` Konrad Rzeszutek Wilk
2014-04-07 6:14 ` Raghavendra K T
2014-04-07 6:14 ` Raghavendra K T
2014-04-07 16:38 ` Waiman Long
2014-04-07 16:38 ` Waiman Long
2014-04-07 16:38 ` Waiman Long
2014-04-07 17:51 ` Raghavendra K T
2014-04-07 17:51 ` Raghavendra K T
2014-04-08 19:15 ` Waiman Long
2014-04-08 19:15 ` Waiman Long
2014-04-08 19:15 ` Waiman Long
2014-04-09 12:08 ` Raghavendra K T
2014-04-09 12:08 ` Raghavendra K T
2014-04-09 12:08 ` Raghavendra K T
2014-04-07 17:51 ` Raghavendra K T
2014-04-07 6:14 ` Raghavendra K T
-- strict thread matches above, loose matches on Subject: below --
2014-04-02 13:27 Waiman Long
2014-04-01 20:47 Waiman Long
2014-04-01 20:47 Waiman Long
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