* [PATCH v2 00/12] locking/qspinlock: simplify code generation
@ 2022-07-13 7:06 Nicholas Piggin
2022-07-13 7:06 ` [PATCH v2 01/12] locking/qspinlock: remove pv_node abstraction Nicholas Piggin
` (11 more replies)
0 siblings, 12 replies; 20+ messages in thread
From: Nicholas Piggin @ 2022-07-13 7:06 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Nicholas Piggin, Ingo Molnar, Will Deacon, Waiman Long,
Boqun Feng, linux-kernel @ vger . kernel . org
This accounts for comments from last post. Thanks for the feedback.
Thanks,
Nick
v2:
- Remove BUILD_BUG_ON contradiction
- Add Longman's for pending bit for !paravirt case
- Make queued_spin_lock_mcs_queue __always_inline
- Drop cmpxchg_acquire->trylock patch that changed generated
code slightly (and had wild indenting).
- Fix dropped acquire memory ordering in pv_wait_node cleanup
(and renamed it to pv_wait_node_acquire).
Nicholas Piggin (12):
locking/qspinlock: remove pv_node abstraction
locking/qspinlock: inline mcs_spinlock functions into qspinlock
locking/qspinlock: split common mcs queueing code into its own
function
locking/qspinlock: move pv lock word helpers into qspinlock.c
locking/qspinlock: be less clever with the preprocessor
locking/qspinlock: merge qspinlock_paravirt.h into qspinlock.c
locking/qspinlock: remove arch qspinlock_paravirt.h includes
locking/qspinlock: stop renaming queued_spin_lock_slowpath to
native_queued_spin_lock_slowpath
locking/qspinlock: rename __pv_init_lock_hash to pv_spinlocks_init
locking/qspinlock: paravirt use simple trylock in case idx overflows
locking/qspinlock: separate pv_wait_node from the non-paravirt path
locking/qspinlock: simplify pv_wait_head_or_lock calling scheme
arch/alpha/include/asm/Kbuild | 1 -
arch/arc/include/asm/Kbuild | 1 -
arch/arm/include/asm/mcs_spinlock.h | 24 -
arch/arm64/include/asm/Kbuild | 1 -
arch/hexagon/include/asm/Kbuild | 1 -
arch/ia64/include/asm/Kbuild | 1 -
arch/m68k/include/asm/Kbuild | 1 -
arch/microblaze/include/asm/Kbuild | 1 -
arch/mips/include/asm/Kbuild | 1 -
arch/nios2/include/asm/Kbuild | 1 -
arch/parisc/include/asm/Kbuild | 1 -
arch/powerpc/include/asm/Kbuild | 1 -
arch/powerpc/include/asm/qspinlock.h | 45 +-
arch/powerpc/include/asm/qspinlock_paravirt.h | 7 -
arch/powerpc/include/asm/spinlock.h | 2 +-
arch/s390/include/asm/Kbuild | 1 -
arch/sh/include/asm/Kbuild | 1 -
arch/sparc/include/asm/Kbuild | 1 -
arch/um/include/asm/Kbuild | 1 -
arch/x86/hyperv/hv_spinlock.c | 2 +-
arch/x86/include/asm/Kbuild | 1 -
arch/x86/include/asm/qspinlock.h | 19 +-
arch/x86/include/asm/qspinlock_paravirt.h | 72 --
arch/x86/kernel/kvm.c | 2 +-
arch/x86/kernel/paravirt-spinlocks.c | 71 ++
arch/x86/kernel/paravirt.c | 2 +-
arch/x86/xen/spinlock.c | 2 +-
arch/xtensa/include/asm/Kbuild | 1 -
include/asm-generic/mcs_spinlock.h | 13 -
include/asm-generic/qspinlock.h | 6 +
kernel/locking/mcs_spinlock.h | 121 ---
kernel/locking/qspinlock.c | 835 ++++++++++++++----
kernel/locking/qspinlock_paravirt.h | 562 ------------
33 files changed, 764 insertions(+), 1038 deletions(-)
delete mode 100644 arch/arm/include/asm/mcs_spinlock.h
delete mode 100644 arch/powerpc/include/asm/qspinlock_paravirt.h
delete mode 100644 arch/x86/include/asm/qspinlock_paravirt.h
delete mode 100644 include/asm-generic/mcs_spinlock.h
delete mode 100644 kernel/locking/mcs_spinlock.h
delete mode 100644 kernel/locking/qspinlock_paravirt.h
--
2.35.1
^ permalink raw reply [flat|nested] 20+ messages in thread
* [PATCH v2 01/12] locking/qspinlock: remove pv_node abstraction
2022-07-13 7:06 [PATCH v2 00/12] locking/qspinlock: simplify code generation Nicholas Piggin
@ 2022-07-13 7:06 ` Nicholas Piggin
2022-07-13 7:06 ` [PATCH v2 02/12] locking/qspinlock: inline mcs_spinlock functions into qspinlock Nicholas Piggin
` (10 subsequent siblings)
11 siblings, 0 replies; 20+ messages in thread
From: Nicholas Piggin @ 2022-07-13 7:06 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Nicholas Piggin, Ingo Molnar, Will Deacon, Waiman Long,
Boqun Feng, linux-kernel @ vger . kernel . org
There isn't much point trying to separate struct qnode from struct pv_node
when struct qnode has to know about pv_node anyway.
Acked-by: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
kernel/locking/qspinlock.c | 3 ++-
kernel/locking/qspinlock_paravirt.h | 34 +++++++++++------------------
2 files changed, 15 insertions(+), 22 deletions(-)
diff --git a/kernel/locking/qspinlock.c b/kernel/locking/qspinlock.c
index 65a9a10caa6f..a0fc21d99199 100644
--- a/kernel/locking/qspinlock.c
+++ b/kernel/locking/qspinlock.c
@@ -82,7 +82,8 @@
struct qnode {
struct mcs_spinlock mcs;
#ifdef CONFIG_PARAVIRT_SPINLOCKS
- long reserved[2];
+ int cpu;
+ u8 state;
#endif
};
diff --git a/kernel/locking/qspinlock_paravirt.h b/kernel/locking/qspinlock_paravirt.h
index e84d21aa0722..4efe00e6b441 100644
--- a/kernel/locking/qspinlock_paravirt.h
+++ b/kernel/locking/qspinlock_paravirt.h
@@ -47,12 +47,6 @@ enum vcpu_state {
vcpu_hashed, /* = pv_hash'ed + vcpu_halted */
};
-struct pv_node {
- struct mcs_spinlock mcs;
- int cpu;
- u8 state;
-};
-
/*
* Hybrid PV queued/unfair lock
*
@@ -170,7 +164,7 @@ static __always_inline int trylock_clear_pending(struct qspinlock *lock)
*/
struct pv_hash_entry {
struct qspinlock *lock;
- struct pv_node *node;
+ struct qnode *node;
};
#define PV_HE_PER_LINE (SMP_CACHE_BYTES / sizeof(struct pv_hash_entry))
@@ -209,7 +203,7 @@ void __init __pv_init_lock_hash(void)
offset < (1 << pv_lock_hash_bits); \
offset++, he = &pv_lock_hash[(hash + offset) & ((1 << pv_lock_hash_bits) - 1)])
-static struct qspinlock **pv_hash(struct qspinlock *lock, struct pv_node *node)
+static struct qspinlock **pv_hash(struct qspinlock *lock, struct qnode *node)
{
unsigned long offset, hash = hash_ptr(lock, pv_lock_hash_bits);
struct pv_hash_entry *he;
@@ -236,11 +230,11 @@ static struct qspinlock **pv_hash(struct qspinlock *lock, struct pv_node *node)
BUG();
}
-static struct pv_node *pv_unhash(struct qspinlock *lock)
+static struct qnode *pv_unhash(struct qspinlock *lock)
{
unsigned long offset, hash = hash_ptr(lock, pv_lock_hash_bits);
struct pv_hash_entry *he;
- struct pv_node *node;
+ struct qnode *node;
for_each_hash_entry(he, offset, hash) {
if (READ_ONCE(he->lock) == lock) {
@@ -264,7 +258,7 @@ static struct pv_node *pv_unhash(struct qspinlock *lock)
* in a running state.
*/
static inline bool
-pv_wait_early(struct pv_node *prev, int loop)
+pv_wait_early(struct qnode *prev, int loop)
{
if ((loop & PV_PREV_CHECK_MASK) != 0)
return false;
@@ -277,9 +271,7 @@ pv_wait_early(struct pv_node *prev, int loop)
*/
static void pv_init_node(struct mcs_spinlock *node)
{
- struct pv_node *pn = (struct pv_node *)node;
-
- BUILD_BUG_ON(sizeof(struct pv_node) > sizeof(struct qnode));
+ struct qnode *pn = (struct qnode *)node;
pn->cpu = smp_processor_id();
pn->state = vcpu_running;
@@ -292,8 +284,8 @@ static void pv_init_node(struct mcs_spinlock *node)
*/
static void pv_wait_node(struct mcs_spinlock *node, struct mcs_spinlock *prev)
{
- struct pv_node *pn = (struct pv_node *)node;
- struct pv_node *pp = (struct pv_node *)prev;
+ struct qnode *pn = (struct qnode *)node;
+ struct qnode *pp = (struct qnode *)prev;
int loop;
bool wait_early;
@@ -359,7 +351,7 @@ static void pv_wait_node(struct mcs_spinlock *node, struct mcs_spinlock *prev)
*/
static void pv_kick_node(struct qspinlock *lock, struct mcs_spinlock *node)
{
- struct pv_node *pn = (struct pv_node *)node;
+ struct qnode *pn = (struct qnode *)node;
/*
* If the vCPU is indeed halted, advance its state to match that of
@@ -402,7 +394,7 @@ static void pv_kick_node(struct qspinlock *lock, struct mcs_spinlock *node)
static u32
pv_wait_head_or_lock(struct qspinlock *lock, struct mcs_spinlock *node)
{
- struct pv_node *pn = (struct pv_node *)node;
+ struct qnode *pn = (struct qnode *)node;
struct qspinlock **lp = NULL;
int waitcnt = 0;
int loop;
@@ -492,7 +484,7 @@ pv_wait_head_or_lock(struct qspinlock *lock, struct mcs_spinlock *node)
__visible void
__pv_queued_spin_unlock_slowpath(struct qspinlock *lock, u8 locked)
{
- struct pv_node *node;
+ struct qnode *node;
if (unlikely(locked != _Q_SLOW_VAL)) {
WARN(!debug_locks_silent,
@@ -517,14 +509,14 @@ __pv_queued_spin_unlock_slowpath(struct qspinlock *lock, u8 locked)
node = pv_unhash(lock);
/*
- * Now that we have a reference to the (likely) blocked pv_node,
+ * Now that we have a reference to the (likely) blocked qnode,
* release the lock.
*/
smp_store_release(&lock->locked, 0);
/*
* At this point the memory pointed at by lock can be freed/reused,
- * however we can still use the pv_node to kick the CPU.
+ * however we can still use the qnode to kick the CPU.
* The other vCPU may not really be halted, but kicking an active
* vCPU is harmless other than the additional latency in completing
* the unlock.
--
2.35.1
^ permalink raw reply related [flat|nested] 20+ messages in thread
* [PATCH v2 02/12] locking/qspinlock: inline mcs_spinlock functions into qspinlock
2022-07-13 7:06 [PATCH v2 00/12] locking/qspinlock: simplify code generation Nicholas Piggin
2022-07-13 7:06 ` [PATCH v2 01/12] locking/qspinlock: remove pv_node abstraction Nicholas Piggin
@ 2022-07-13 7:06 ` Nicholas Piggin
2022-07-13 7:06 ` [PATCH v2 03/12] locking/qspinlock: split common mcs queueing code into its own function Nicholas Piggin
` (9 subsequent siblings)
11 siblings, 0 replies; 20+ messages in thread
From: Nicholas Piggin @ 2022-07-13 7:06 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Nicholas Piggin, Ingo Molnar, Will Deacon, Waiman Long,
Boqun Feng, linux-kernel @ vger . kernel . org
qspinlock uses mcs_spinlock for the struct type (.next, .locked, and the
misplaced .count), and arch_mcs_spin_{un}lock_contended(). These can be
trivially inlined into qspinlock, the only arch that overrides them is
arm, and it does not implement qspinlock.
The now-unused mcs_spinlock code is removed.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
arch/alpha/include/asm/Kbuild | 1 -
arch/arc/include/asm/Kbuild | 1 -
arch/arm/include/asm/mcs_spinlock.h | 24 ------
arch/arm64/include/asm/Kbuild | 1 -
arch/hexagon/include/asm/Kbuild | 1 -
arch/ia64/include/asm/Kbuild | 1 -
arch/m68k/include/asm/Kbuild | 1 -
arch/microblaze/include/asm/Kbuild | 1 -
arch/mips/include/asm/Kbuild | 1 -
arch/nios2/include/asm/Kbuild | 1 -
arch/parisc/include/asm/Kbuild | 1 -
arch/powerpc/include/asm/Kbuild | 1 -
arch/s390/include/asm/Kbuild | 1 -
arch/sh/include/asm/Kbuild | 1 -
arch/sparc/include/asm/Kbuild | 1 -
arch/um/include/asm/Kbuild | 1 -
arch/x86/include/asm/Kbuild | 1 -
arch/xtensa/include/asm/Kbuild | 1 -
include/asm-generic/mcs_spinlock.h | 13 ---
kernel/locking/mcs_spinlock.h | 121 ----------------------------
kernel/locking/qspinlock.c | 38 ++++-----
kernel/locking/qspinlock_paravirt.h | 53 ++++++------
22 files changed, 43 insertions(+), 223 deletions(-)
delete mode 100644 arch/arm/include/asm/mcs_spinlock.h
delete mode 100644 include/asm-generic/mcs_spinlock.h
delete mode 100644 kernel/locking/mcs_spinlock.h
diff --git a/arch/alpha/include/asm/Kbuild b/arch/alpha/include/asm/Kbuild
index 42911c8340c7..d21cf7b3173a 100644
--- a/arch/alpha/include/asm/Kbuild
+++ b/arch/alpha/include/asm/Kbuild
@@ -3,4 +3,3 @@
generated-y += syscall_table.h
generic-y += export.h
generic-y += kvm_para.h
-generic-y += mcs_spinlock.h
diff --git a/arch/arc/include/asm/Kbuild b/arch/arc/include/asm/Kbuild
index 3c1afa524b9c..5ae4337a9301 100644
--- a/arch/arc/include/asm/Kbuild
+++ b/arch/arc/include/asm/Kbuild
@@ -1,6 +1,5 @@
# SPDX-License-Identifier: GPL-2.0
generic-y += extable.h
generic-y += kvm_para.h
-generic-y += mcs_spinlock.h
generic-y += parport.h
generic-y += user.h
diff --git a/arch/arm/include/asm/mcs_spinlock.h b/arch/arm/include/asm/mcs_spinlock.h
deleted file mode 100644
index 529d2cf4d06f..000000000000
--- a/arch/arm/include/asm/mcs_spinlock.h
+++ /dev/null
@@ -1,24 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __ASM_MCS_LOCK_H
-#define __ASM_MCS_LOCK_H
-
-#ifdef CONFIG_SMP
-#include <asm/spinlock.h>
-
-/* MCS spin-locking. */
-#define arch_mcs_spin_lock_contended(lock) \
-do { \
- /* Ensure prior stores are observed before we enter wfe. */ \
- smp_mb(); \
- while (!(smp_load_acquire(lock))) \
- wfe(); \
-} while (0) \
-
-#define arch_mcs_spin_unlock_contended(lock) \
-do { \
- smp_store_release(lock, 1); \
- dsb_sev(); \
-} while (0)
-
-#endif /* CONFIG_SMP */
-#endif /* __ASM_MCS_LOCK_H */
diff --git a/arch/arm64/include/asm/Kbuild b/arch/arm64/include/asm/Kbuild
index 5c8ee5a541d2..57e9ad366d25 100644
--- a/arch/arm64/include/asm/Kbuild
+++ b/arch/arm64/include/asm/Kbuild
@@ -1,6 +1,5 @@
# SPDX-License-Identifier: GPL-2.0
generic-y += early_ioremap.h
-generic-y += mcs_spinlock.h
generic-y += qrwlock.h
generic-y += qspinlock.h
generic-y += parport.h
diff --git a/arch/hexagon/include/asm/Kbuild b/arch/hexagon/include/asm/Kbuild
index 3ece3c93fe08..37bbf99f66d4 100644
--- a/arch/hexagon/include/asm/Kbuild
+++ b/arch/hexagon/include/asm/Kbuild
@@ -2,4 +2,3 @@
generic-y += extable.h
generic-y += iomap.h
generic-y += kvm_para.h
-generic-y += mcs_spinlock.h
diff --git a/arch/ia64/include/asm/Kbuild b/arch/ia64/include/asm/Kbuild
index f994c1daf9d4..a0198c12e339 100644
--- a/arch/ia64/include/asm/Kbuild
+++ b/arch/ia64/include/asm/Kbuild
@@ -1,5 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
generated-y += syscall_table.h
generic-y += kvm_para.h
-generic-y += mcs_spinlock.h
generic-y += vtime.h
diff --git a/arch/m68k/include/asm/Kbuild b/arch/m68k/include/asm/Kbuild
index 1b720299deb1..8dbef73ce01d 100644
--- a/arch/m68k/include/asm/Kbuild
+++ b/arch/m68k/include/asm/Kbuild
@@ -3,5 +3,4 @@ generated-y += syscall_table.h
generic-y += export.h
generic-y += extable.h
generic-y += kvm_para.h
-generic-y += mcs_spinlock.h
generic-y += spinlock.h
diff --git a/arch/microblaze/include/asm/Kbuild b/arch/microblaze/include/asm/Kbuild
index a055f5dbe00a..7615a27e0851 100644
--- a/arch/microblaze/include/asm/Kbuild
+++ b/arch/microblaze/include/asm/Kbuild
@@ -3,7 +3,6 @@ generated-y += syscall_table.h
generic-y += cmpxchg.h
generic-y += extable.h
generic-y += kvm_para.h
-generic-y += mcs_spinlock.h
generic-y += parport.h
generic-y += syscalls.h
generic-y += tlb.h
diff --git a/arch/mips/include/asm/Kbuild b/arch/mips/include/asm/Kbuild
index dee172716581..65cedca08771 100644
--- a/arch/mips/include/asm/Kbuild
+++ b/arch/mips/include/asm/Kbuild
@@ -9,7 +9,6 @@ generated-y += unistd_nr_o32.h
generic-y += export.h
generic-y += kvm_para.h
-generic-y += mcs_spinlock.h
generic-y += parport.h
generic-y += qrwlock.h
generic-y += qspinlock.h
diff --git a/arch/nios2/include/asm/Kbuild b/arch/nios2/include/asm/Kbuild
index 7fe7437555fb..5718eee9665c 100644
--- a/arch/nios2/include/asm/Kbuild
+++ b/arch/nios2/include/asm/Kbuild
@@ -2,6 +2,5 @@
generic-y += cmpxchg.h
generic-y += extable.h
generic-y += kvm_para.h
-generic-y += mcs_spinlock.h
generic-y += spinlock.h
generic-y += user.h
diff --git a/arch/parisc/include/asm/Kbuild b/arch/parisc/include/asm/Kbuild
index e6e7f74c8ac9..1f0c28d74c88 100644
--- a/arch/parisc/include/asm/Kbuild
+++ b/arch/parisc/include/asm/Kbuild
@@ -2,5 +2,4 @@
generated-y += syscall_table_32.h
generated-y += syscall_table_64.h
generic-y += kvm_para.h
-generic-y += mcs_spinlock.h
generic-y += user.h
diff --git a/arch/powerpc/include/asm/Kbuild b/arch/powerpc/include/asm/Kbuild
index bcf95ce0964f..813a8c3405ad 100644
--- a/arch/powerpc/include/asm/Kbuild
+++ b/arch/powerpc/include/asm/Kbuild
@@ -4,7 +4,6 @@ generated-y += syscall_table_64.h
generated-y += syscall_table_spu.h
generic-y += export.h
generic-y += kvm_types.h
-generic-y += mcs_spinlock.h
generic-y += qrwlock.h
generic-y += vtime.h
generic-y += early_ioremap.h
diff --git a/arch/s390/include/asm/Kbuild b/arch/s390/include/asm/Kbuild
index 1a18d7b82f86..8b036a4ee2ca 100644
--- a/arch/s390/include/asm/Kbuild
+++ b/arch/s390/include/asm/Kbuild
@@ -7,4 +7,3 @@ generated-y += unistd_nr.h
generic-y += asm-offsets.h
generic-y += export.h
generic-y += kvm_types.h
-generic-y += mcs_spinlock.h
diff --git a/arch/sh/include/asm/Kbuild b/arch/sh/include/asm/Kbuild
index fc44d9c88b41..3192f19bcf85 100644
--- a/arch/sh/include/asm/Kbuild
+++ b/arch/sh/include/asm/Kbuild
@@ -1,5 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
generated-y += syscall_table.h
generic-y += kvm_para.h
-generic-y += mcs_spinlock.h
generic-y += parport.h
diff --git a/arch/sparc/include/asm/Kbuild b/arch/sparc/include/asm/Kbuild
index 0b9d98ced34a..f0b913f7ba05 100644
--- a/arch/sparc/include/asm/Kbuild
+++ b/arch/sparc/include/asm/Kbuild
@@ -3,4 +3,3 @@ generated-y += syscall_table_32.h
generated-y += syscall_table_64.h
generic-y += export.h
generic-y += kvm_para.h
-generic-y += mcs_spinlock.h
diff --git a/arch/um/include/asm/Kbuild b/arch/um/include/asm/Kbuild
index b2d834a29f3a..04080c0c1aec 100644
--- a/arch/um/include/asm/Kbuild
+++ b/arch/um/include/asm/Kbuild
@@ -14,7 +14,6 @@ generic-y += hw_irq.h
generic-y += irq_regs.h
generic-y += irq_work.h
generic-y += kdebug.h
-generic-y += mcs_spinlock.h
generic-y += mmiowb.h
generic-y += module.lds.h
generic-y += param.h
diff --git a/arch/x86/include/asm/Kbuild b/arch/x86/include/asm/Kbuild
index 1e51650b79d7..beb7683f7b8f 100644
--- a/arch/x86/include/asm/Kbuild
+++ b/arch/x86/include/asm/Kbuild
@@ -10,4 +10,3 @@ generated-y += xen-hypercalls.h
generic-y += early_ioremap.h
generic-y += export.h
-generic-y += mcs_spinlock.h
diff --git a/arch/xtensa/include/asm/Kbuild b/arch/xtensa/include/asm/Kbuild
index fa07c686cbcc..29ae65cb68c2 100644
--- a/arch/xtensa/include/asm/Kbuild
+++ b/arch/xtensa/include/asm/Kbuild
@@ -2,7 +2,6 @@
generated-y += syscall_table.h
generic-y += extable.h
generic-y += kvm_para.h
-generic-y += mcs_spinlock.h
generic-y += param.h
generic-y += parport.h
generic-y += qrwlock.h
diff --git a/include/asm-generic/mcs_spinlock.h b/include/asm-generic/mcs_spinlock.h
deleted file mode 100644
index 10cd4ffc6ba2..000000000000
--- a/include/asm-generic/mcs_spinlock.h
+++ /dev/null
@@ -1,13 +0,0 @@
-#ifndef __ASM_MCS_SPINLOCK_H
-#define __ASM_MCS_SPINLOCK_H
-
-/*
- * Architectures can define their own:
- *
- * arch_mcs_spin_lock_contended(l)
- * arch_mcs_spin_unlock_contended(l)
- *
- * See kernel/locking/mcs_spinlock.c.
- */
-
-#endif /* __ASM_MCS_SPINLOCK_H */
diff --git a/kernel/locking/mcs_spinlock.h b/kernel/locking/mcs_spinlock.h
deleted file mode 100644
index 85251d8771d9..000000000000
--- a/kernel/locking/mcs_spinlock.h
+++ /dev/null
@@ -1,121 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * MCS lock defines
- *
- * This file contains the main data structure and API definitions of MCS lock.
- *
- * The MCS lock (proposed by Mellor-Crummey and Scott) is a simple spin-lock
- * with the desirable properties of being fair, and with each cpu trying
- * to acquire the lock spinning on a local variable.
- * It avoids expensive cache bounces that common test-and-set spin-lock
- * implementations incur.
- */
-#ifndef __LINUX_MCS_SPINLOCK_H
-#define __LINUX_MCS_SPINLOCK_H
-
-#include <asm/mcs_spinlock.h>
-
-struct mcs_spinlock {
- struct mcs_spinlock *next;
- int locked; /* 1 if lock acquired */
- int count; /* nesting count, see qspinlock.c */
-};
-
-#ifndef arch_mcs_spin_lock_contended
-/*
- * Using smp_cond_load_acquire() provides the acquire semantics
- * required so that subsequent operations happen after the
- * lock is acquired. Additionally, some architectures such as
- * ARM64 would like to do spin-waiting instead of purely
- * spinning, and smp_cond_load_acquire() provides that behavior.
- */
-#define arch_mcs_spin_lock_contended(l) \
-do { \
- smp_cond_load_acquire(l, VAL); \
-} while (0)
-#endif
-
-#ifndef arch_mcs_spin_unlock_contended
-/*
- * smp_store_release() provides a memory barrier to ensure all
- * operations in the critical section has been completed before
- * unlocking.
- */
-#define arch_mcs_spin_unlock_contended(l) \
- smp_store_release((l), 1)
-#endif
-
-/*
- * Note: the smp_load_acquire/smp_store_release pair is not
- * sufficient to form a full memory barrier across
- * cpus for many architectures (except x86) for mcs_unlock and mcs_lock.
- * For applications that need a full barrier across multiple cpus
- * with mcs_unlock and mcs_lock pair, smp_mb__after_unlock_lock() should be
- * used after mcs_lock.
- */
-
-/*
- * In order to acquire the lock, the caller should declare a local node and
- * pass a reference of the node to this function in addition to the lock.
- * If the lock has already been acquired, then this will proceed to spin
- * on this node->locked until the previous lock holder sets the node->locked
- * in mcs_spin_unlock().
- */
-static inline
-void mcs_spin_lock(struct mcs_spinlock **lock, struct mcs_spinlock *node)
-{
- struct mcs_spinlock *prev;
-
- /* Init node */
- node->locked = 0;
- node->next = NULL;
-
- /*
- * We rely on the full barrier with global transitivity implied by the
- * below xchg() to order the initialization stores above against any
- * observation of @node. And to provide the ACQUIRE ordering associated
- * with a LOCK primitive.
- */
- prev = xchg(lock, node);
- if (likely(prev == NULL)) {
- /*
- * Lock acquired, don't need to set node->locked to 1. Threads
- * only spin on its own node->locked value for lock acquisition.
- * However, since this thread can immediately acquire the lock
- * and does not proceed to spin on its own node->locked, this
- * value won't be used. If a debug mode is needed to
- * audit lock status, then set node->locked value here.
- */
- return;
- }
- WRITE_ONCE(prev->next, node);
-
- /* Wait until the lock holder passes the lock down. */
- arch_mcs_spin_lock_contended(&node->locked);
-}
-
-/*
- * Releases the lock. The caller should pass in the corresponding node that
- * was used to acquire the lock.
- */
-static inline
-void mcs_spin_unlock(struct mcs_spinlock **lock, struct mcs_spinlock *node)
-{
- struct mcs_spinlock *next = READ_ONCE(node->next);
-
- if (likely(!next)) {
- /*
- * Release the lock by setting it to NULL
- */
- if (likely(cmpxchg_release(lock, node, NULL) == node))
- return;
- /* Wait until the next pointer is set */
- while (!(next = READ_ONCE(node->next)))
- cpu_relax();
- }
-
- /* Pass lock to next waiter. */
- arch_mcs_spin_unlock_contended(&next->locked);
-}
-
-#endif /* __LINUX_MCS_SPINLOCK_H */
diff --git a/kernel/locking/qspinlock.c b/kernel/locking/qspinlock.c
index a0fc21d99199..32f401e966ab 100644
--- a/kernel/locking/qspinlock.c
+++ b/kernel/locking/qspinlock.c
@@ -66,11 +66,10 @@
*
*/
-#include "mcs_spinlock.h"
#define MAX_NODES 4
/*
- * On 64-bit architectures, the mcs_spinlock structure will be 16 bytes in
+ * On 64-bit architectures, the qnode structure will be 16 bytes in
* size and four of them will fit nicely in one 64-byte cacheline. For
* pvqspinlock, however, we need more space for extra data. To accommodate
* that, we insert two more long words to pad it up to 32 bytes. IOW, only
@@ -80,7 +79,9 @@
* qspinlocks.
*/
struct qnode {
- struct mcs_spinlock mcs;
+ struct qnode *next;
+ int locked; /* 1 if lock acquired */
+ int count; /* nesting count */
#ifdef CONFIG_PARAVIRT_SPINLOCKS
int cpu;
u8 state;
@@ -124,18 +125,18 @@ static inline __pure u32 encode_tail(int cpu, int idx)
return tail;
}
-static inline __pure struct mcs_spinlock *decode_tail(u32 tail)
+static inline __pure struct qnode *decode_tail(u32 tail)
{
int cpu = (tail >> _Q_TAIL_CPU_OFFSET) - 1;
int idx = (tail & _Q_TAIL_IDX_MASK) >> _Q_TAIL_IDX_OFFSET;
- return per_cpu_ptr(&qnodes[idx].mcs, cpu);
+ return per_cpu_ptr(&qnodes[idx], cpu);
}
static inline __pure
-struct mcs_spinlock *grab_mcs_node(struct mcs_spinlock *base, int idx)
+struct qnode *grab_qnode(struct qnode *base, int idx)
{
- return &((struct qnode *)base + idx)->mcs;
+ return &base[idx];
}
#define _Q_LOCKED_PENDING_MASK (_Q_LOCKED_MASK | _Q_PENDING_MASK)
@@ -271,13 +272,13 @@ static __always_inline void set_locked(struct qspinlock *lock)
* all the PV callbacks.
*/
-static __always_inline void __pv_init_node(struct mcs_spinlock *node) { }
-static __always_inline void __pv_wait_node(struct mcs_spinlock *node,
- struct mcs_spinlock *prev) { }
+static __always_inline void __pv_init_node(struct qnode *node) { }
+static __always_inline void __pv_wait_node(struct qnode *node,
+ struct qnode *prev) { }
static __always_inline void __pv_kick_node(struct qspinlock *lock,
- struct mcs_spinlock *node) { }
+ struct qnode *node) { }
static __always_inline u32 __pv_wait_head_or_lock(struct qspinlock *lock,
- struct mcs_spinlock *node)
+ struct qnode *node)
{ return 0; }
#define pv_enabled() false
@@ -316,7 +317,7 @@ static __always_inline u32 __pv_wait_head_or_lock(struct qspinlock *lock,
*/
void queued_spin_lock_slowpath(struct qspinlock *lock, u32 val)
{
- struct mcs_spinlock *prev, *next, *node;
+ struct qnode *prev, *next, *node;
u32 old, tail;
int idx;
@@ -399,7 +400,7 @@ void queued_spin_lock_slowpath(struct qspinlock *lock, u32 val)
queue:
lockevent_inc(lock_slowpath);
pv_queue:
- node = this_cpu_ptr(&qnodes[0].mcs);
+ node = this_cpu_ptr(&qnodes[0]);
idx = node->count++;
tail = encode_tail(smp_processor_id(), idx);
@@ -421,7 +422,7 @@ void queued_spin_lock_slowpath(struct qspinlock *lock, u32 val)
goto release;
}
- node = grab_mcs_node(node, idx);
+ node = grab_qnode(node, idx);
/*
* Keep counts of non-zero index values:
@@ -475,7 +476,8 @@ void queued_spin_lock_slowpath(struct qspinlock *lock, u32 val)
WRITE_ONCE(prev->next, node);
pv_wait_node(node, prev);
- arch_mcs_spin_lock_contended(&node->locked);
+ /* Wait for mcs node lock to be released */
+ smp_cond_load_acquire(&node->locked, VAL);
/*
* While waiting for the MCS lock, the next pointer may have
@@ -554,7 +556,7 @@ void queued_spin_lock_slowpath(struct qspinlock *lock, u32 val)
if (!next)
next = smp_cond_load_relaxed(&node->next, (VAL));
- arch_mcs_spin_unlock_contended(&next->locked);
+ smp_store_release(&next->locked, 1); /* unlock the mcs node lock */
pv_kick_node(lock, next);
release:
@@ -563,7 +565,7 @@ void queued_spin_lock_slowpath(struct qspinlock *lock, u32 val)
/*
* release the node
*/
- __this_cpu_dec(qnodes[0].mcs.count);
+ __this_cpu_dec(qnodes[0].count);
}
EXPORT_SYMBOL(queued_spin_lock_slowpath);
diff --git a/kernel/locking/qspinlock_paravirt.h b/kernel/locking/qspinlock_paravirt.h
index 4efe00e6b441..cce3d3dde216 100644
--- a/kernel/locking/qspinlock_paravirt.h
+++ b/kernel/locking/qspinlock_paravirt.h
@@ -267,14 +267,12 @@ pv_wait_early(struct qnode *prev, int loop)
}
/*
- * Initialize the PV part of the mcs_spinlock node.
+ * Initialize the PV part of the qnode.
*/
-static void pv_init_node(struct mcs_spinlock *node)
+static void pv_init_node(struct qnode *node)
{
- struct qnode *pn = (struct qnode *)node;
-
- pn->cpu = smp_processor_id();
- pn->state = vcpu_running;
+ node->cpu = smp_processor_id();
+ node->state = vcpu_running;
}
/*
@@ -282,10 +280,8 @@ static void pv_init_node(struct mcs_spinlock *node)
* pv_kick_node() is used to set _Q_SLOW_VAL and fill in hash table on its
* behalf.
*/
-static void pv_wait_node(struct mcs_spinlock *node, struct mcs_spinlock *prev)
+static void pv_wait_node(struct qnode *node, struct qnode *prev)
{
- struct qnode *pn = (struct qnode *)node;
- struct qnode *pp = (struct qnode *)prev;
int loop;
bool wait_early;
@@ -293,7 +289,7 @@ static void pv_wait_node(struct mcs_spinlock *node, struct mcs_spinlock *prev)
for (wait_early = false, loop = SPIN_THRESHOLD; loop; loop--) {
if (READ_ONCE(node->locked))
return;
- if (pv_wait_early(pp, loop)) {
+ if (pv_wait_early(prev, loop)) {
wait_early = true;
break;
}
@@ -301,20 +297,20 @@ static void pv_wait_node(struct mcs_spinlock *node, struct mcs_spinlock *prev)
}
/*
- * Order pn->state vs pn->locked thusly:
+ * Order node->state vs node->locked thusly:
*
- * [S] pn->state = vcpu_halted [S] next->locked = 1
- * MB MB
- * [L] pn->locked [RmW] pn->state = vcpu_hashed
+ * [S] node->state = vcpu_halted [S] next->locked = 1
+ * MB MB
+ * [L] node->locked [RmW] node->state = vcpu_hashed
*
* Matches the cmpxchg() from pv_kick_node().
*/
- smp_store_mb(pn->state, vcpu_halted);
+ smp_store_mb(node->state, vcpu_halted);
if (!READ_ONCE(node->locked)) {
lockevent_inc(pv_wait_node);
lockevent_cond_inc(pv_wait_early, wait_early);
- pv_wait(&pn->state, vcpu_halted);
+ pv_wait(&node->state, vcpu_halted);
}
/*
@@ -322,7 +318,7 @@ static void pv_wait_node(struct mcs_spinlock *node, struct mcs_spinlock *prev)
* value so that pv_wait_head_or_lock() knows to not also try
* to hash this lock.
*/
- cmpxchg(&pn->state, vcpu_halted, vcpu_running);
+ cmpxchg(&node->state, vcpu_halted, vcpu_running);
/*
* If the locked flag is still not set after wakeup, it is a
@@ -349,10 +345,8 @@ static void pv_wait_node(struct mcs_spinlock *node, struct mcs_spinlock *prev)
* such that they're waiting in pv_wait_head_or_lock(), this avoids a
* wake/sleep cycle.
*/
-static void pv_kick_node(struct qspinlock *lock, struct mcs_spinlock *node)
+static void pv_kick_node(struct qspinlock *lock, struct qnode *node)
{
- struct qnode *pn = (struct qnode *)node;
-
/*
* If the vCPU is indeed halted, advance its state to match that of
* pv_wait_node(). If OTOH this fails, the vCPU was running and will
@@ -361,15 +355,15 @@ static void pv_kick_node(struct qspinlock *lock, struct mcs_spinlock *node)
* Matches with smp_store_mb() and cmpxchg() in pv_wait_node()
*
* The write to next->locked in arch_mcs_spin_unlock_contended()
- * must be ordered before the read of pn->state in the cmpxchg()
+ * must be ordered before the read of node->state in the cmpxchg()
* below for the code to work correctly. To guarantee full ordering
* irrespective of the success or failure of the cmpxchg(),
* a relaxed version with explicit barrier is used. The control
- * dependency will order the reading of pn->state before any
+ * dependency will order the reading of node->state before any
* subsequent writes.
*/
smp_mb__before_atomic();
- if (cmpxchg_relaxed(&pn->state, vcpu_halted, vcpu_hashed)
+ if (cmpxchg_relaxed(&node->state, vcpu_halted, vcpu_hashed)
!= vcpu_halted)
return;
@@ -381,7 +375,7 @@ static void pv_kick_node(struct qspinlock *lock, struct mcs_spinlock *node)
* needed.
*/
WRITE_ONCE(lock->locked, _Q_SLOW_VAL);
- (void)pv_hash(lock, pn);
+ (void)pv_hash(lock, node);
}
/*
@@ -392,9 +386,8 @@ static void pv_kick_node(struct qspinlock *lock, struct mcs_spinlock *node)
* The current value of the lock will be returned for additional processing.
*/
static u32
-pv_wait_head_or_lock(struct qspinlock *lock, struct mcs_spinlock *node)
+pv_wait_head_or_lock(struct qspinlock *lock, struct qnode *node)
{
- struct qnode *pn = (struct qnode *)node;
struct qspinlock **lp = NULL;
int waitcnt = 0;
int loop;
@@ -403,7 +396,7 @@ pv_wait_head_or_lock(struct qspinlock *lock, struct mcs_spinlock *node)
* If pv_kick_node() already advanced our state, we don't need to
* insert ourselves into the hash table anymore.
*/
- if (READ_ONCE(pn->state) == vcpu_hashed)
+ if (READ_ONCE(node->state) == vcpu_hashed)
lp = (struct qspinlock **)1;
/*
@@ -416,7 +409,7 @@ pv_wait_head_or_lock(struct qspinlock *lock, struct mcs_spinlock *node)
* Set correct vCPU state to be used by queue node wait-early
* mechanism.
*/
- WRITE_ONCE(pn->state, vcpu_running);
+ WRITE_ONCE(node->state, vcpu_running);
/*
* Set the pending bit in the active lock spinning loop to
@@ -432,7 +425,7 @@ pv_wait_head_or_lock(struct qspinlock *lock, struct mcs_spinlock *node)
if (!lp) { /* ONCE */
- lp = pv_hash(lock, pn);
+ lp = pv_hash(lock, node);
/*
* We must hash before setting _Q_SLOW_VAL, such that
@@ -456,7 +449,7 @@ pv_wait_head_or_lock(struct qspinlock *lock, struct mcs_spinlock *node)
goto gotlock;
}
}
- WRITE_ONCE(pn->state, vcpu_hashed);
+ WRITE_ONCE(node->state, vcpu_hashed);
lockevent_inc(pv_wait_head);
lockevent_cond_inc(pv_wait_again, waitcnt);
pv_wait(&lock->locked, _Q_SLOW_VAL);
--
2.35.1
^ permalink raw reply related [flat|nested] 20+ messages in thread
* [PATCH v2 03/12] locking/qspinlock: split common mcs queueing code into its own function
2022-07-13 7:06 [PATCH v2 00/12] locking/qspinlock: simplify code generation Nicholas Piggin
2022-07-13 7:06 ` [PATCH v2 01/12] locking/qspinlock: remove pv_node abstraction Nicholas Piggin
2022-07-13 7:06 ` [PATCH v2 02/12] locking/qspinlock: inline mcs_spinlock functions into qspinlock Nicholas Piggin
@ 2022-07-13 7:06 ` Nicholas Piggin
2022-07-13 7:06 ` [PATCH v2 04/12] locking/qspinlock: move pv lock word helpers into qspinlock.c Nicholas Piggin
` (8 subsequent siblings)
11 siblings, 0 replies; 20+ messages in thread
From: Nicholas Piggin @ 2022-07-13 7:06 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Nicholas Piggin, Ingo Molnar, Will Deacon, Waiman Long,
Boqun Feng, linux-kernel @ vger . kernel . org
pv qspinlocks jumps over a bunch of slowpath code directly to the
queueing part. Split the queueing code into its own function and call it
explicitly in each pv and !pv cases. This will help to untangle the two
cases with subsequent changes.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
kernel/locking/qspinlock.c | 208 +++++++++++++++++++------------------
1 file changed, 108 insertions(+), 100 deletions(-)
diff --git a/kernel/locking/qspinlock.c b/kernel/locking/qspinlock.c
index 32f401e966ab..7360d643de29 100644
--- a/kernel/locking/qspinlock.c
+++ b/kernel/locking/qspinlock.c
@@ -294,112 +294,14 @@ static __always_inline u32 __pv_wait_head_or_lock(struct qspinlock *lock,
#endif /* _GEN_PV_LOCK_SLOWPATH */
-/**
- * queued_spin_lock_slowpath - acquire the queued spinlock
- * @lock: Pointer to queued spinlock structure
- * @val: Current value of the queued spinlock 32-bit word
- *
- * (queue tail, pending bit, lock value)
- *
- * fast : slow : unlock
- * : :
- * uncontended (0,0,0) -:--> (0,0,1) ------------------------------:--> (*,*,0)
- * : | ^--------.------. / :
- * : v \ \ | :
- * pending : (0,1,1) +--> (0,1,0) \ | :
- * : | ^--' | | :
- * : v | | :
- * uncontended : (n,x,y) +--> (n,0,0) --' | :
- * queue : | ^--' | :
- * : v | :
- * contended : (*,x,y) +--> (*,0,0) ---> (*,0,1) -' :
- * queue : ^--' :
- */
-void queued_spin_lock_slowpath(struct qspinlock *lock, u32 val)
+static inline void queued_spin_lock_mcs_queue(struct qspinlock *lock)
{
struct qnode *prev, *next, *node;
- u32 old, tail;
+ u32 val, old, tail;
int idx;
BUILD_BUG_ON(CONFIG_NR_CPUS >= (1U << _Q_TAIL_CPU_BITS));
- if (pv_enabled())
- goto pv_queue;
-
- if (virt_spin_lock(lock))
- return;
-
- /*
- * Wait for in-progress pending->locked hand-overs with a bounded
- * number of spins so that we guarantee forward progress.
- *
- * 0,1,0 -> 0,0,1
- */
- if (val == _Q_PENDING_VAL) {
- int cnt = _Q_PENDING_LOOPS;
- val = atomic_cond_read_relaxed(&lock->val,
- (VAL != _Q_PENDING_VAL) || !cnt--);
- }
-
- /*
- * If we observe any contention; queue.
- */
- if (val & ~_Q_LOCKED_MASK)
- goto queue;
-
- /*
- * trylock || pending
- *
- * 0,0,* -> 0,1,* -> 0,0,1 pending, trylock
- */
- val = queued_fetch_set_pending_acquire(lock);
-
- /*
- * If we observe contention, there is a concurrent locker.
- *
- * Undo and queue; our setting of PENDING might have made the
- * n,0,0 -> 0,0,0 transition fail and it will now be waiting
- * on @next to become !NULL.
- */
- if (unlikely(val & ~_Q_LOCKED_MASK)) {
-
- /* Undo PENDING if we set it. */
- if (!(val & _Q_PENDING_MASK))
- clear_pending(lock);
-
- goto queue;
- }
-
- /*
- * We're pending, wait for the owner to go away.
- *
- * 0,1,1 -> 0,1,0
- *
- * this wait loop must be a load-acquire such that we match the
- * store-release that clears the locked bit and create lock
- * sequentiality; this is because not all
- * clear_pending_set_locked() implementations imply full
- * barriers.
- */
- if (val & _Q_LOCKED_MASK)
- atomic_cond_read_acquire(&lock->val, !(VAL & _Q_LOCKED_MASK));
-
- /*
- * take ownership and clear the pending bit.
- *
- * 0,1,0 -> 0,0,1
- */
- clear_pending_set_locked(lock);
- lockevent_inc(lock_pending);
- return;
-
- /*
- * End of pending bit optimistic spinning and beginning of MCS
- * queuing.
- */
-queue:
- lockevent_inc(lock_slowpath);
-pv_queue:
node = this_cpu_ptr(&qnodes[0]);
idx = node->count++;
tail = encode_tail(smp_processor_id(), idx);
@@ -567,6 +469,110 @@ void queued_spin_lock_slowpath(struct qspinlock *lock, u32 val)
*/
__this_cpu_dec(qnodes[0].count);
}
+
+/**
+ * queued_spin_lock_slowpath - acquire the queued spinlock
+ * @lock: Pointer to queued spinlock structure
+ * @val: Current value of the queued spinlock 32-bit word
+ *
+ * (queue tail, pending bit, lock value)
+ *
+ * fast : slow : unlock
+ * : :
+ * uncontended (0,0,0) -:--> (0,0,1) ------------------------------:--> (*,*,0)
+ * : | ^--------.------. / :
+ * : v \ \ | :
+ * pending : (0,1,1) +--> (0,1,0) \ | :
+ * : | ^--' | | :
+ * : v | | :
+ * uncontended : (n,x,y) +--> (n,0,0) --' | :
+ * queue : | ^--' | :
+ * : v | :
+ * contended : (*,x,y) +--> (*,0,0) ---> (*,0,1) -' :
+ * queue : ^--' :
+ */
+void queued_spin_lock_slowpath(struct qspinlock *lock, u32 val)
+{
+ if (pv_enabled()) {
+ queued_spin_lock_mcs_queue(lock);
+ return;
+ }
+
+ if (virt_spin_lock(lock))
+ return;
+
+ /*
+ * Wait for in-progress pending->locked hand-overs with a bounded
+ * number of spins so that we guarantee forward progress.
+ *
+ * 0,1,0 -> 0,0,1
+ */
+ if (val == _Q_PENDING_VAL) {
+ int cnt = _Q_PENDING_LOOPS;
+ val = atomic_cond_read_relaxed(&lock->val,
+ (VAL != _Q_PENDING_VAL) || !cnt--);
+ }
+
+ /*
+ * If we observe any contention; queue.
+ */
+ if (val & ~_Q_LOCKED_MASK)
+ goto queue;
+
+ /*
+ * trylock || pending
+ *
+ * 0,0,* -> 0,1,* -> 0,0,1 pending, trylock
+ */
+ val = queued_fetch_set_pending_acquire(lock);
+
+ /*
+ * If we observe contention, there is a concurrent locker.
+ *
+ * Undo and queue; our setting of PENDING might have made the
+ * n,0,0 -> 0,0,0 transition fail and it will now be waiting
+ * on @next to become !NULL.
+ */
+ if (unlikely(val & ~_Q_LOCKED_MASK)) {
+
+ /* Undo PENDING if we set it. */
+ if (!(val & _Q_PENDING_MASK))
+ clear_pending(lock);
+
+ goto queue;
+ }
+
+ /*
+ * We're pending, wait for the owner to go away.
+ *
+ * 0,1,1 -> 0,1,0
+ *
+ * this wait loop must be a load-acquire such that we match the
+ * store-release that clears the locked bit and create lock
+ * sequentiality; this is because not all
+ * clear_pending_set_locked() implementations imply full
+ * barriers.
+ */
+ if (val & _Q_LOCKED_MASK)
+ atomic_cond_read_acquire(&lock->val, !(VAL & _Q_LOCKED_MASK));
+
+ /*
+ * take ownership and clear the pending bit.
+ *
+ * 0,1,0 -> 0,0,1
+ */
+ clear_pending_set_locked(lock);
+ lockevent_inc(lock_pending);
+ return;
+
+ /*
+ * End of pending bit optimistic spinning and beginning of MCS
+ * queuing.
+ */
+queue:
+ lockevent_inc(lock_slowpath);
+ queued_spin_lock_mcs_queue(lock);
+}
EXPORT_SYMBOL(queued_spin_lock_slowpath);
/*
@@ -583,6 +589,8 @@ EXPORT_SYMBOL(queued_spin_lock_slowpath);
#undef pv_kick_node
#undef pv_wait_head_or_lock
+#define queued_spin_lock_mcs_queue __pv_queued_spin_lock_mcs_queue
+
#undef queued_spin_lock_slowpath
#define queued_spin_lock_slowpath __pv_queued_spin_lock_slowpath
--
2.35.1
^ permalink raw reply related [flat|nested] 20+ messages in thread
* [PATCH v2 04/12] locking/qspinlock: move pv lock word helpers into qspinlock.c
2022-07-13 7:06 [PATCH v2 00/12] locking/qspinlock: simplify code generation Nicholas Piggin
` (2 preceding siblings ...)
2022-07-13 7:06 ` [PATCH v2 03/12] locking/qspinlock: split common mcs queueing code into its own function Nicholas Piggin
@ 2022-07-13 7:06 ` Nicholas Piggin
2022-07-13 7:06 ` [PATCH v2 05/12] locking/qspinlock: be less clever with the preprocessor Nicholas Piggin
` (7 subsequent siblings)
11 siblings, 0 replies; 20+ messages in thread
From: Nicholas Piggin @ 2022-07-13 7:06 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Nicholas Piggin, Ingo Molnar, Will Deacon, Waiman Long,
Boqun Feng, linux-kernel @ vger . kernel . org
There is no real reason not to keep all the bit manipulation together.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
kernel/locking/qspinlock.c | 109 +++++++++++++++++-----------
kernel/locking/qspinlock_paravirt.h | 51 -------------
2 files changed, 65 insertions(+), 95 deletions(-)
diff --git a/kernel/locking/qspinlock.c b/kernel/locking/qspinlock.c
index 7360d643de29..95bf24d276c3 100644
--- a/kernel/locking/qspinlock.c
+++ b/kernel/locking/qspinlock.c
@@ -141,7 +141,26 @@ struct qnode *grab_qnode(struct qnode *base, int idx)
#define _Q_LOCKED_PENDING_MASK (_Q_LOCKED_MASK | _Q_PENDING_MASK)
+/**
+ * set_pending - set the pending bit.
+ * @lock: Pointer to queued spinlock structure
+ *
+ * *,0,* -> *,1,*
+ *
+ * For paravirt, the pending bit is used by the queue head vCPU to indicate
+ * that it is actively spinning on the lock and no lock stealing is allowed.
+ * Non-paravirt, the pending bit is used to avoid loading the extra node
+ * cacheline in the likely contended case.
+ */
+static __always_inline void set_pending(struct qspinlock *lock)
+{
#if _Q_PENDING_BITS == 8
+ WRITE_ONCE(lock->pending, 1);
+#else
+ atomic_or(_Q_PENDING_VAL, &lock->val);
+#endif
+}
+
/**
* clear_pending - clear the pending bit.
* @lock: Pointer to queued spinlock structure
@@ -150,7 +169,11 @@ struct qnode *grab_qnode(struct qnode *base, int idx)
*/
static __always_inline void clear_pending(struct qspinlock *lock)
{
+#if _Q_PENDING_BITS == 8
WRITE_ONCE(lock->pending, 0);
+#else
+ atomic_andnot(_Q_PENDING_VAL, &lock->val);
+#endif
}
/**
@@ -163,74 +186,72 @@ static __always_inline void clear_pending(struct qspinlock *lock)
*/
static __always_inline void clear_pending_set_locked(struct qspinlock *lock)
{
+#if _Q_PENDING_BITS == 8
WRITE_ONCE(lock->locked_pending, _Q_LOCKED_VAL);
+#else
+ atomic_add(-_Q_PENDING_VAL + _Q_LOCKED_VAL, &lock->val);
+#endif
}
-/*
- * xchg_tail - Put in the new queue tail code word & retrieve previous one
- * @lock : Pointer to queued spinlock structure
- * @tail : The new queue tail code word
- * Return: The previous queue tail code word
- *
- * xchg(lock, tail), which heads an address dependency
- *
- * p,*,* -> n,*,* ; prev = xchg(lock, node)
- */
-static __always_inline u32 xchg_tail(struct qspinlock *lock, u32 tail)
-{
- /*
- * We can use relaxed semantics since the caller ensures that the
- * MCS node is properly initialized before updating the tail.
- */
- return (u32)xchg_relaxed(&lock->tail,
- tail >> _Q_TAIL_OFFSET) << _Q_TAIL_OFFSET;
-}
-
-#else /* _Q_PENDING_BITS == 8 */
-
/**
- * clear_pending - clear the pending bit.
+ * trylock_clear_pending - try to take ownership and clear the pending bit
* @lock: Pointer to queued spinlock structure
*
- * *,1,* -> *,0,*
+ * 0,1,0 -> 0,0,1
*/
-static __always_inline void clear_pending(struct qspinlock *lock)
+static __always_inline int trylock_clear_pending(struct qspinlock *lock)
{
- atomic_andnot(_Q_PENDING_VAL, &lock->val);
-}
+#if _Q_PENDING_BITS == 8
+ return !READ_ONCE(lock->locked) &&
+ (cmpxchg_acquire(&lock->locked_pending, _Q_PENDING_VAL,
+ _Q_LOCKED_VAL) == _Q_PENDING_VAL);
+#else
+ int val = atomic_read(&lock->val);
-/**
- * clear_pending_set_locked - take ownership and clear the pending bit.
- * @lock: Pointer to queued spinlock structure
- *
- * *,1,0 -> *,0,1
- */
-static __always_inline void clear_pending_set_locked(struct qspinlock *lock)
-{
- atomic_add(-_Q_PENDING_VAL + _Q_LOCKED_VAL, &lock->val);
+ for (;;) {
+ int old, new;
+
+ if (val & _Q_LOCKED_MASK)
+ break;
+
+ /*
+ * Try to clear pending bit & set locked bit
+ */
+ old = val;
+ new = (val & ~_Q_PENDING_MASK) | _Q_LOCKED_VAL;
+ val = atomic_cmpxchg_acquire(&lock->val, old, new);
+
+ if (val == old)
+ return 1;
+ }
+ return 0;
+#endif
}
-/**
+/*
* xchg_tail - Put in the new queue tail code word & retrieve previous one
* @lock : Pointer to queued spinlock structure
* @tail : The new queue tail code word
* Return: The previous queue tail code word
*
- * xchg(lock, tail)
+ * xchg(lock, tail), which heads an address dependency
*
* p,*,* -> n,*,* ; prev = xchg(lock, node)
*/
static __always_inline u32 xchg_tail(struct qspinlock *lock, u32 tail)
{
+ /*
+ * We can use relaxed semantics since the caller ensures that the
+ * MCS node is properly initialized before updating the tail.
+ */
+#if _Q_PENDING_BITS == 8
+ return (u32)xchg_relaxed(&lock->tail,
+ tail >> _Q_TAIL_OFFSET) << _Q_TAIL_OFFSET;
+#else
u32 old, new, val = atomic_read(&lock->val);
for (;;) {
new = (val & _Q_LOCKED_PENDING_MASK) | tail;
- /*
- * We can use relaxed semantics since the caller ensures that
- * the MCS node is properly initialized before updating the
- * tail.
- */
old = atomic_cmpxchg_relaxed(&lock->val, val, new);
if (old == val)
break;
@@ -238,8 +259,8 @@ static __always_inline u32 xchg_tail(struct qspinlock *lock, u32 tail)
val = old;
}
return old;
+#endif
}
-#endif /* _Q_PENDING_BITS == 8 */
/**
* queued_fetch_set_pending_acquire - fetch the whole lock value and set pending
diff --git a/kernel/locking/qspinlock_paravirt.h b/kernel/locking/qspinlock_paravirt.h
index cce3d3dde216..97385861adc2 100644
--- a/kernel/locking/qspinlock_paravirt.h
+++ b/kernel/locking/qspinlock_paravirt.h
@@ -95,57 +95,6 @@ static inline bool pv_hybrid_queued_unfair_trylock(struct qspinlock *lock)
return false;
}
-/*
- * The pending bit is used by the queue head vCPU to indicate that it
- * is actively spinning on the lock and no lock stealing is allowed.
- */
-#if _Q_PENDING_BITS == 8
-static __always_inline void set_pending(struct qspinlock *lock)
-{
- WRITE_ONCE(lock->pending, 1);
-}
-
-/*
- * The pending bit check in pv_queued_spin_steal_lock() isn't a memory
- * barrier. Therefore, an atomic cmpxchg_acquire() is used to acquire the
- * lock just to be sure that it will get it.
- */
-static __always_inline int trylock_clear_pending(struct qspinlock *lock)
-{
- return !READ_ONCE(lock->locked) &&
- (cmpxchg_acquire(&lock->locked_pending, _Q_PENDING_VAL,
- _Q_LOCKED_VAL) == _Q_PENDING_VAL);
-}
-#else /* _Q_PENDING_BITS == 8 */
-static __always_inline void set_pending(struct qspinlock *lock)
-{
- atomic_or(_Q_PENDING_VAL, &lock->val);
-}
-
-static __always_inline int trylock_clear_pending(struct qspinlock *lock)
-{
- int val = atomic_read(&lock->val);
-
- for (;;) {
- int old, new;
-
- if (val & _Q_LOCKED_MASK)
- break;
-
- /*
- * Try to clear pending bit & set locked bit
- */
- old = val;
- new = (val & ~_Q_PENDING_MASK) | _Q_LOCKED_VAL;
- val = atomic_cmpxchg_acquire(&lock->val, old, new);
-
- if (val == old)
- return 1;
- }
- return 0;
-}
-#endif /* _Q_PENDING_BITS == 8 */
-
/*
* Lock and MCS node addresses hash table for fast lookup
*
--
2.35.1
^ permalink raw reply related [flat|nested] 20+ messages in thread
* [PATCH v2 05/12] locking/qspinlock: be less clever with the preprocessor
2022-07-13 7:06 [PATCH v2 00/12] locking/qspinlock: simplify code generation Nicholas Piggin
` (3 preceding siblings ...)
2022-07-13 7:06 ` [PATCH v2 04/12] locking/qspinlock: move pv lock word helpers into qspinlock.c Nicholas Piggin
@ 2022-07-13 7:06 ` Nicholas Piggin
2022-07-13 7:06 ` [PATCH v2 06/12] locking/qspinlock: merge qspinlock_paravirt.h into qspinlock.c Nicholas Piggin
` (6 subsequent siblings)
11 siblings, 0 replies; 20+ messages in thread
From: Nicholas Piggin @ 2022-07-13 7:06 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Nicholas Piggin, Ingo Molnar, Will Deacon, Waiman Long,
Boqun Feng, linux-kernel @ vger . kernel . org
Stop qspinlock.c including itself and avoid most of the function
renaming with the preprocessor.
This is mostly done by having the common slowpath code take a 'bool
paravirt' argument and adjusting code based on that. __always_inline
ensures the paravirt and non-paravirt cases are kept separate and
the compiler can constant-fold the 'paravirt' tests.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
kernel/locking/qspinlock.c | 116 ++++++++++++----------------
kernel/locking/qspinlock_paravirt.h | 10 +--
2 files changed, 52 insertions(+), 74 deletions(-)
diff --git a/kernel/locking/qspinlock.c b/kernel/locking/qspinlock.c
index 95bf24d276c3..037bd5440cfd 100644
--- a/kernel/locking/qspinlock.c
+++ b/kernel/locking/qspinlock.c
@@ -11,8 +11,6 @@
* Peter Zijlstra <peterz@infradead.org>
*/
-#ifndef _GEN_PV_LOCK_SLOWPATH
-
#include <linux/smp.h>
#include <linux/bug.h>
#include <linux/cpumask.h>
@@ -287,35 +285,21 @@ static __always_inline void set_locked(struct qspinlock *lock)
WRITE_ONCE(lock->locked, _Q_LOCKED_VAL);
}
-
-/*
- * Generate the native code for queued_spin_unlock_slowpath(); provide NOPs for
- * all the PV callbacks.
- */
-
-static __always_inline void __pv_init_node(struct qnode *node) { }
-static __always_inline void __pv_wait_node(struct qnode *node,
- struct qnode *prev) { }
-static __always_inline void __pv_kick_node(struct qspinlock *lock,
- struct qnode *node) { }
-static __always_inline u32 __pv_wait_head_or_lock(struct qspinlock *lock,
- struct qnode *node)
- { return 0; }
-
-#define pv_enabled() false
-
-#define pv_init_node __pv_init_node
-#define pv_wait_node __pv_wait_node
-#define pv_kick_node __pv_kick_node
-#define pv_wait_head_or_lock __pv_wait_head_or_lock
-
#ifdef CONFIG_PARAVIRT_SPINLOCKS
-#define queued_spin_lock_slowpath native_queued_spin_lock_slowpath
-#endif
-
-#endif /* _GEN_PV_LOCK_SLOWPATH */
+#include "qspinlock_paravirt.h"
+#else /* CONFIG_PARAVIRT_SPINLOCKS */
+static __always_inline void pv_init_node(struct qnode *node) { }
+static __always_inline void pv_wait_node(struct qnode *node,
+ struct qnode *prev) { }
+static __always_inline void pv_kick_node(struct qspinlock *lock,
+ struct qnode *node) { }
+static __always_inline u32 pv_wait_head_or_lock(struct qspinlock *lock,
+ struct qnode *node)
+ { return 0; }
+static __always_inline bool pv_hybrid_queued_unfair_trylock(struct qspinlock *lock) { BUILD_BUG(); }
+#endif /* CONFIG_PARAVIRT_SPINLOCKS */
-static inline void queued_spin_lock_mcs_queue(struct qspinlock *lock)
+static __always_inline void queued_spin_lock_mcs_queue(struct qspinlock *lock, bool paravirt)
{
struct qnode *prev, *next, *node;
u32 val, old, tail;
@@ -340,8 +324,13 @@ static inline void queued_spin_lock_mcs_queue(struct qspinlock *lock)
*/
if (unlikely(idx >= MAX_NODES)) {
lockevent_inc(lock_no_node);
- while (!queued_spin_trylock(lock))
- cpu_relax();
+ if (paravirt) {
+ while (!pv_hybrid_queued_unfair_trylock(lock))
+ cpu_relax();
+ } else {
+ while (!queued_spin_trylock(lock))
+ cpu_relax();
+ }
goto release;
}
@@ -361,15 +350,21 @@ static inline void queued_spin_lock_mcs_queue(struct qspinlock *lock)
node->locked = 0;
node->next = NULL;
- pv_init_node(node);
+ if (paravirt)
+ pv_init_node(node);
/*
* We touched a (possibly) cold cacheline in the per-cpu queue node;
* attempt the trylock once more in the hope someone let go while we
* weren't watching.
*/
- if (queued_spin_trylock(lock))
- goto release;
+ if (paravirt) {
+ if (pv_hybrid_queued_unfair_trylock(lock))
+ goto release;
+ } else {
+ if (queued_spin_trylock(lock))
+ goto release;
+ }
/*
* Ensure that the initialisation of @node is complete before we
@@ -398,7 +393,8 @@ static inline void queued_spin_lock_mcs_queue(struct qspinlock *lock)
/* Link @node into the waitqueue. */
WRITE_ONCE(prev->next, node);
- pv_wait_node(node, prev);
+ if (paravirt)
+ pv_wait_node(node, prev);
/* Wait for mcs node lock to be released */
smp_cond_load_acquire(&node->locked, VAL);
@@ -434,8 +430,10 @@ static inline void queued_spin_lock_mcs_queue(struct qspinlock *lock)
* If PV isn't active, 0 will be returned instead.
*
*/
- if ((val = pv_wait_head_or_lock(lock, node)))
- goto locked;
+ if (paravirt) {
+ if ((val = pv_wait_head_or_lock(lock, node)))
+ goto locked;
+ }
val = atomic_cond_read_acquire(&lock->val, !(VAL & _Q_LOCKED_PENDING_MASK));
@@ -480,7 +478,8 @@ static inline void queued_spin_lock_mcs_queue(struct qspinlock *lock)
next = smp_cond_load_relaxed(&node->next, (VAL));
smp_store_release(&next->locked, 1); /* unlock the mcs node lock */
- pv_kick_node(lock, next);
+ if (paravirt)
+ pv_kick_node(lock, next);
release:
trace_contention_end(lock, 0);
@@ -512,13 +511,12 @@ static inline void queued_spin_lock_mcs_queue(struct qspinlock *lock)
* contended : (*,x,y) +--> (*,0,0) ---> (*,0,1) -' :
* queue : ^--' :
*/
+#ifdef CONFIG_PARAVIRT_SPINLOCKS
+#define queued_spin_lock_slowpath native_queued_spin_lock_slowpath
+#endif
+
void queued_spin_lock_slowpath(struct qspinlock *lock, u32 val)
{
- if (pv_enabled()) {
- queued_spin_lock_mcs_queue(lock);
- return;
- }
-
if (virt_spin_lock(lock))
return;
@@ -592,31 +590,17 @@ void queued_spin_lock_slowpath(struct qspinlock *lock, u32 val)
*/
queue:
lockevent_inc(lock_slowpath);
- queued_spin_lock_mcs_queue(lock);
+ queued_spin_lock_mcs_queue(lock, false);
}
EXPORT_SYMBOL(queued_spin_lock_slowpath);
-/*
- * Generate the paravirt code for queued_spin_unlock_slowpath().
- */
-#if !defined(_GEN_PV_LOCK_SLOWPATH) && defined(CONFIG_PARAVIRT_SPINLOCKS)
-#define _GEN_PV_LOCK_SLOWPATH
-
-#undef pv_enabled
-#define pv_enabled() true
-
-#undef pv_init_node
-#undef pv_wait_node
-#undef pv_kick_node
-#undef pv_wait_head_or_lock
-
-#define queued_spin_lock_mcs_queue __pv_queued_spin_lock_mcs_queue
-
-#undef queued_spin_lock_slowpath
-#define queued_spin_lock_slowpath __pv_queued_spin_lock_slowpath
-
-#include "qspinlock_paravirt.h"
-#include "qspinlock.c"
+#ifdef CONFIG_PARAVIRT_SPINLOCKS
+#undef queued_spin_lock_slowpath
+void __pv_queued_spin_lock_slowpath(struct qspinlock *lock, u32 val)
+{
+ queued_spin_lock_mcs_queue(lock, true);
+}
+EXPORT_SYMBOL(__pv_queued_spin_lock_slowpath);
bool nopvspin __initdata;
static __init int parse_nopvspin(char *arg)
@@ -625,4 +609,4 @@ static __init int parse_nopvspin(char *arg)
return 0;
}
early_param("nopvspin", parse_nopvspin);
-#endif
+#endif /* CONFIG_PARAVIRT_SPINLOCKS */
diff --git a/kernel/locking/qspinlock_paravirt.h b/kernel/locking/qspinlock_paravirt.h
index 97385861adc2..f1922e3a0f7d 100644
--- a/kernel/locking/qspinlock_paravirt.h
+++ b/kernel/locking/qspinlock_paravirt.h
@@ -1,8 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _GEN_PV_LOCK_SLOWPATH
-#error "do not include this file"
-#endif
-
#include <linux/hash.h>
#include <linux/memblock.h>
#include <linux/debug_locks.h>
@@ -50,9 +46,8 @@ enum vcpu_state {
/*
* Hybrid PV queued/unfair lock
*
- * By replacing the regular queued_spin_trylock() with the function below,
- * it will be called once when a lock waiter enter the PV slowpath before
- * being queued.
+ * This function is called once when a lock waiter enters the PV slowpath
+ * before being queued.
*
* The pending bit is set by the queue head vCPU of the MCS wait queue in
* pv_wait_head_or_lock() to signal that it is ready to spin on the lock.
@@ -71,7 +66,6 @@ enum vcpu_state {
* queued lock (no lock starvation) and an unfair lock (good performance
* on not heavily contended locks).
*/
-#define queued_spin_trylock(l) pv_hybrid_queued_unfair_trylock(l)
static inline bool pv_hybrid_queued_unfair_trylock(struct qspinlock *lock)
{
/*
--
2.35.1
^ permalink raw reply related [flat|nested] 20+ messages in thread
* [PATCH v2 06/12] locking/qspinlock: merge qspinlock_paravirt.h into qspinlock.c
2022-07-13 7:06 [PATCH v2 00/12] locking/qspinlock: simplify code generation Nicholas Piggin
` (4 preceding siblings ...)
2022-07-13 7:06 ` [PATCH v2 05/12] locking/qspinlock: be less clever with the preprocessor Nicholas Piggin
@ 2022-07-13 7:06 ` Nicholas Piggin
2022-07-14 14:16 ` kernel test robot
` (2 more replies)
2022-07-13 7:06 ` [PATCH v2 07/12] locking/qspinlock: remove arch qspinlock_paravirt.h includes Nicholas Piggin
` (5 subsequent siblings)
11 siblings, 3 replies; 20+ messages in thread
From: Nicholas Piggin @ 2022-07-13 7:06 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Nicholas Piggin, Ingo Molnar, Will Deacon, Waiman Long,
Boqun Feng, linux-kernel @ vger . kernel . org
There isn't much reason to keep these separate.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
kernel/locking/qspinlock.c | 488 ++++++++++++++++++++++++++-
kernel/locking/qspinlock_paravirt.h | 490 ----------------------------
2 files changed, 487 insertions(+), 491 deletions(-)
delete mode 100644 kernel/locking/qspinlock_paravirt.h
diff --git a/kernel/locking/qspinlock.c b/kernel/locking/qspinlock.c
index 037bd5440cfd..3b3663d15402 100644
--- a/kernel/locking/qspinlock.c
+++ b/kernel/locking/qspinlock.c
@@ -16,6 +16,7 @@
#include <linux/cpumask.h>
#include <linux/percpu.h>
#include <linux/hardirq.h>
+#include <linux/memblock.h>
#include <linux/mutex.h>
#include <linux/prefetch.h>
#include <asm/byteorder.h>
@@ -286,7 +287,492 @@ static __always_inline void set_locked(struct qspinlock *lock)
}
#ifdef CONFIG_PARAVIRT_SPINLOCKS
-#include "qspinlock_paravirt.h"
+/*
+ * Implement paravirt qspinlocks; the general idea is to halt the vcpus instead
+ * of spinning them.
+ *
+ * This relies on the architecture to provide two paravirt hypercalls:
+ *
+ * pv_wait(u8 *ptr, u8 val) -- suspends the vcpu if *ptr == val
+ * pv_kick(cpu) -- wakes a suspended vcpu
+ *
+ * Using these we implement __pv_queued_spin_lock_slowpath() and
+ * __pv_queued_spin_unlock() to replace native_queued_spin_lock_slowpath() and
+ * native_queued_spin_unlock().
+ */
+
+#define _Q_SLOW_VAL (3U << _Q_LOCKED_OFFSET)
+
+/*
+ * Queue Node Adaptive Spinning
+ *
+ * A queue node vCPU will stop spinning if the vCPU in the previous node is
+ * not running. The one lock stealing attempt allowed at slowpath entry
+ * mitigates the slight slowdown for non-overcommitted guest with this
+ * aggressive wait-early mechanism.
+ *
+ * The status of the previous node will be checked at fixed interval
+ * controlled by PV_PREV_CHECK_MASK. This is to ensure that we won't
+ * pound on the cacheline of the previous node too heavily.
+ */
+#define PV_PREV_CHECK_MASK 0xff
+
+/*
+ * Queue node uses: vcpu_running & vcpu_halted.
+ * Queue head uses: vcpu_running & vcpu_hashed.
+ */
+enum vcpu_state {
+ vcpu_running = 0,
+ vcpu_halted, /* Used only in pv_wait_node */
+ vcpu_hashed, /* = pv_hash'ed + vcpu_halted */
+};
+
+/*
+ * Hybrid PV queued/unfair lock
+ *
+ * This function is called once when a lock waiter enters the PV slowpath
+ * before being queued.
+ *
+ * The pending bit is set by the queue head vCPU of the MCS wait queue in
+ * pv_wait_head_or_lock() to signal that it is ready to spin on the lock.
+ * When that bit becomes visible to the incoming waiters, no lock stealing
+ * is allowed. The function will return immediately to make the waiters
+ * enter the MCS wait queue. So lock starvation shouldn't happen as long
+ * as the queued mode vCPUs are actively running to set the pending bit
+ * and hence disabling lock stealing.
+ *
+ * When the pending bit isn't set, the lock waiters will stay in the unfair
+ * mode spinning on the lock unless the MCS wait queue is empty. In this
+ * case, the lock waiters will enter the queued mode slowpath trying to
+ * become the queue head and set the pending bit.
+ *
+ * This hybrid PV queued/unfair lock combines the best attributes of a
+ * queued lock (no lock starvation) and an unfair lock (good performance
+ * on not heavily contended locks).
+ */
+static inline bool pv_hybrid_queued_unfair_trylock(struct qspinlock *lock)
+{
+ /*
+ * Stay in unfair lock mode as long as queued mode waiters are
+ * present in the MCS wait queue but the pending bit isn't set.
+ */
+ for (;;) {
+ int val = atomic_read(&lock->val);
+
+ if (!(val & _Q_LOCKED_PENDING_MASK) &&
+ (cmpxchg_acquire(&lock->locked, 0, _Q_LOCKED_VAL) == 0)) {
+ lockevent_inc(pv_lock_stealing);
+ return true;
+ }
+ if (!(val & _Q_TAIL_MASK) || (val & _Q_PENDING_MASK))
+ break;
+
+ cpu_relax();
+ }
+
+ return false;
+}
+
+/*
+ * Lock and MCS node addresses hash table for fast lookup
+ *
+ * Hashing is done on a per-cacheline basis to minimize the need to access
+ * more than one cacheline.
+ *
+ * Dynamically allocate a hash table big enough to hold at least 4X the
+ * number of possible cpus in the system. Allocation is done on page
+ * granularity. So the minimum number of hash buckets should be at least
+ * 256 (64-bit) or 512 (32-bit) to fully utilize a 4k page.
+ *
+ * Since we should not be holding locks from NMI context (very rare indeed) the
+ * max load factor is 0.75, which is around the point where open addressing
+ * breaks down.
+ *
+ */
+struct pv_hash_entry {
+ struct qspinlock *lock;
+ struct qnode *node;
+};
+
+#define PV_HE_PER_LINE (SMP_CACHE_BYTES / sizeof(struct pv_hash_entry))
+#define PV_HE_MIN (PAGE_SIZE / sizeof(struct pv_hash_entry))
+
+static struct pv_hash_entry *pv_lock_hash;
+static unsigned int pv_lock_hash_bits __read_mostly;
+
+/*
+ * Allocate memory for the PV qspinlock hash buckets
+ *
+ * This function should be called from the paravirt spinlock initialization
+ * routine.
+ */
+void __init __pv_init_lock_hash(void)
+{
+ int pv_hash_size = ALIGN(4 * num_possible_cpus(), PV_HE_PER_LINE);
+
+ if (pv_hash_size < PV_HE_MIN)
+ pv_hash_size = PV_HE_MIN;
+
+ /*
+ * Allocate space from bootmem which should be page-size aligned
+ * and hence cacheline aligned.
+ */
+ pv_lock_hash = alloc_large_system_hash("PV qspinlock",
+ sizeof(struct pv_hash_entry),
+ pv_hash_size, 0,
+ HASH_EARLY | HASH_ZERO,
+ &pv_lock_hash_bits, NULL,
+ pv_hash_size, pv_hash_size);
+}
+
+#define for_each_hash_entry(he, offset, hash) \
+ for (hash &= ~(PV_HE_PER_LINE - 1), he = &pv_lock_hash[hash], offset = 0; \
+ offset < (1 << pv_lock_hash_bits); \
+ offset++, he = &pv_lock_hash[(hash + offset) & ((1 << pv_lock_hash_bits) - 1)])
+
+static struct qspinlock **pv_hash(struct qspinlock *lock, struct qnode *node)
+{
+ unsigned long offset, hash = hash_ptr(lock, pv_lock_hash_bits);
+ struct pv_hash_entry *he;
+ int hopcnt = 0;
+
+ for_each_hash_entry(he, offset, hash) {
+ hopcnt++;
+ if (!cmpxchg(&he->lock, NULL, lock)) {
+ WRITE_ONCE(he->node, node);
+ lockevent_pv_hop(hopcnt);
+ return &he->lock;
+ }
+ }
+ /*
+ * Hard assume there is a free entry for us.
+ *
+ * This is guaranteed by ensuring every blocked lock only ever consumes
+ * a single entry, and since we only have 4 nesting levels per CPU
+ * and allocated 4*nr_possible_cpus(), this must be so.
+ *
+ * The single entry is guaranteed by having the lock owner unhash
+ * before it releases.
+ */
+ BUG();
+}
+
+static struct qnode *pv_unhash(struct qspinlock *lock)
+{
+ unsigned long offset, hash = hash_ptr(lock, pv_lock_hash_bits);
+ struct pv_hash_entry *he;
+ struct qnode *node;
+
+ for_each_hash_entry(he, offset, hash) {
+ if (READ_ONCE(he->lock) == lock) {
+ node = READ_ONCE(he->node);
+ WRITE_ONCE(he->lock, NULL);
+ return node;
+ }
+ }
+ /*
+ * Hard assume we'll find an entry.
+ *
+ * This guarantees a limited lookup time and is itself guaranteed by
+ * having the lock owner do the unhash -- IFF the unlock sees the
+ * SLOW flag, there MUST be a hash entry.
+ */
+ BUG();
+}
+
+/*
+ * Return true if when it is time to check the previous node which is not
+ * in a running state.
+ */
+static inline bool
+pv_wait_early(struct qnode *prev, int loop)
+{
+ if ((loop & PV_PREV_CHECK_MASK) != 0)
+ return false;
+
+ return READ_ONCE(prev->state) != vcpu_running;
+}
+
+/*
+ * Initialize the PV part of the qnode.
+ */
+static void pv_init_node(struct qnode *node)
+{
+ node->cpu = smp_processor_id();
+ node->state = vcpu_running;
+}
+
+/*
+ * Wait for node->locked to become true, halt the vcpu after a short spin.
+ * pv_kick_node() is used to set _Q_SLOW_VAL and fill in hash table on its
+ * behalf.
+ */
+static void pv_wait_node(struct qnode *node, struct qnode *prev)
+{
+ int loop;
+ bool wait_early;
+
+ for (;;) {
+ for (wait_early = false, loop = SPIN_THRESHOLD; loop; loop--) {
+ if (READ_ONCE(node->locked))
+ return;
+ if (pv_wait_early(prev, loop)) {
+ wait_early = true;
+ break;
+ }
+ cpu_relax();
+ }
+
+ /*
+ * Order node->state vs node->locked thusly:
+ *
+ * [S] node->state = vcpu_halted [S] next->locked = 1
+ * MB MB
+ * [L] node->locked [RmW] node->state = vcpu_hashed
+ *
+ * Matches the cmpxchg() from pv_kick_node().
+ */
+ smp_store_mb(node->state, vcpu_halted);
+
+ if (!READ_ONCE(node->locked)) {
+ lockevent_inc(pv_wait_node);
+ lockevent_cond_inc(pv_wait_early, wait_early);
+ pv_wait(&node->state, vcpu_halted);
+ }
+
+ /*
+ * If pv_kick_node() changed us to vcpu_hashed, retain that
+ * value so that pv_wait_head_or_lock() knows to not also try
+ * to hash this lock.
+ */
+ cmpxchg(&node->state, vcpu_halted, vcpu_running);
+
+ /*
+ * If the locked flag is still not set after wakeup, it is a
+ * spurious wakeup and the vCPU should wait again. However,
+ * there is a pretty high overhead for CPU halting and kicking.
+ * So it is better to spin for a while in the hope that the
+ * MCS lock will be released soon.
+ */
+ lockevent_cond_inc(pv_spurious_wakeup,
+ !READ_ONCE(node->locked));
+ }
+
+ /*
+ * By now our node->locked should be 1 and our caller will not actually
+ * spin-wait for it. We do however rely on our caller to do a
+ * load-acquire for us.
+ */
+}
+
+/*
+ * Called after setting next->locked = 1 when we're the lock owner.
+ *
+ * Instead of waking the waiters stuck in pv_wait_node() advance their state
+ * such that they're waiting in pv_wait_head_or_lock(), this avoids a
+ * wake/sleep cycle.
+ */
+static void pv_kick_node(struct qspinlock *lock, struct qnode *node)
+{
+ /*
+ * If the vCPU is indeed halted, advance its state to match that of
+ * pv_wait_node(). If OTOH this fails, the vCPU was running and will
+ * observe its next->locked value and advance itself.
+ *
+ * Matches with smp_store_mb() and cmpxchg() in pv_wait_node()
+ *
+ * The write to next->locked in arch_mcs_spin_unlock_contended()
+ * must be ordered before the read of node->state in the cmpxchg()
+ * below for the code to work correctly. To guarantee full ordering
+ * irrespective of the success or failure of the cmpxchg(),
+ * a relaxed version with explicit barrier is used. The control
+ * dependency will order the reading of node->state before any
+ * subsequent writes.
+ */
+ smp_mb__before_atomic();
+ if (cmpxchg_relaxed(&node->state, vcpu_halted, vcpu_hashed)
+ != vcpu_halted)
+ return;
+
+ /*
+ * Put the lock into the hash table and set the _Q_SLOW_VAL.
+ *
+ * As this is the same vCPU that will check the _Q_SLOW_VAL value and
+ * the hash table later on at unlock time, no atomic instruction is
+ * needed.
+ */
+ WRITE_ONCE(lock->locked, _Q_SLOW_VAL);
+ (void)pv_hash(lock, node);
+}
+
+/*
+ * Wait for l->locked to become clear and acquire the lock;
+ * halt the vcpu after a short spin.
+ * __pv_queued_spin_unlock() will wake us.
+ *
+ * The current value of the lock will be returned for additional processing.
+ */
+static u32
+pv_wait_head_or_lock(struct qspinlock *lock, struct qnode *node)
+{
+ struct qspinlock **lp = NULL;
+ int waitcnt = 0;
+ int loop;
+
+ /*
+ * If pv_kick_node() already advanced our state, we don't need to
+ * insert ourselves into the hash table anymore.
+ */
+ if (READ_ONCE(node->state) == vcpu_hashed)
+ lp = (struct qspinlock **)1;
+
+ /*
+ * Tracking # of slowpath locking operations
+ */
+ lockevent_inc(lock_slowpath);
+
+ for (;; waitcnt++) {
+ /*
+ * Set correct vCPU state to be used by queue node wait-early
+ * mechanism.
+ */
+ WRITE_ONCE(node->state, vcpu_running);
+
+ /*
+ * Set the pending bit in the active lock spinning loop to
+ * disable lock stealing before attempting to acquire the lock.
+ */
+ set_pending(lock);
+ for (loop = SPIN_THRESHOLD; loop; loop--) {
+ if (trylock_clear_pending(lock))
+ goto gotlock;
+ cpu_relax();
+ }
+ clear_pending(lock);
+
+
+ if (!lp) { /* ONCE */
+ lp = pv_hash(lock, node);
+
+ /*
+ * We must hash before setting _Q_SLOW_VAL, such that
+ * when we observe _Q_SLOW_VAL in __pv_queued_spin_unlock()
+ * we'll be sure to be able to observe our hash entry.
+ *
+ * [S] <hash> [Rmw] l->locked == _Q_SLOW_VAL
+ * MB RMB
+ * [RmW] l->locked = _Q_SLOW_VAL [L] <unhash>
+ *
+ * Matches the smp_rmb() in __pv_queued_spin_unlock().
+ */
+ if (xchg(&lock->locked, _Q_SLOW_VAL) == 0) {
+ /*
+ * The lock was free and now we own the lock.
+ * Change the lock value back to _Q_LOCKED_VAL
+ * and unhash the table.
+ */
+ WRITE_ONCE(lock->locked, _Q_LOCKED_VAL);
+ WRITE_ONCE(*lp, NULL);
+ goto gotlock;
+ }
+ }
+ WRITE_ONCE(node->state, vcpu_hashed);
+ lockevent_inc(pv_wait_head);
+ lockevent_cond_inc(pv_wait_again, waitcnt);
+ pv_wait(&lock->locked, _Q_SLOW_VAL);
+
+ /*
+ * Because of lock stealing, the queue head vCPU may not be
+ * able to acquire the lock before it has to wait again.
+ */
+ }
+
+ /*
+ * The cmpxchg() or xchg() call before coming here provides the
+ * acquire semantics for locking. The dummy ORing of _Q_LOCKED_VAL
+ * here is to indicate to the compiler that the value will always
+ * be nozero to enable better code optimization.
+ */
+gotlock:
+ return (u32)(atomic_read(&lock->val) | _Q_LOCKED_VAL);
+}
+
+/*
+ * PV versions of the unlock fastpath and slowpath functions to be used
+ * instead of queued_spin_unlock().
+ */
+__visible void
+__pv_queued_spin_unlock_slowpath(struct qspinlock *lock, u8 locked)
+{
+ struct qnode *node;
+
+ if (unlikely(locked != _Q_SLOW_VAL)) {
+ WARN(!debug_locks_silent,
+ "pvqspinlock: lock 0x%lx has corrupted value 0x%x!\n",
+ (unsigned long)lock, atomic_read(&lock->val));
+ return;
+ }
+
+ /*
+ * A failed cmpxchg doesn't provide any memory-ordering guarantees,
+ * so we need a barrier to order the read of the node data in
+ * pv_unhash *after* we've read the lock being _Q_SLOW_VAL.
+ *
+ * Matches the cmpxchg() in pv_wait_head_or_lock() setting _Q_SLOW_VAL.
+ */
+ smp_rmb();
+
+ /*
+ * Since the above failed to release, this must be the SLOW path.
+ * Therefore start by looking up the blocked node and unhashing it.
+ */
+ node = pv_unhash(lock);
+
+ /*
+ * Now that we have a reference to the (likely) blocked qnode,
+ * release the lock.
+ */
+ smp_store_release(&lock->locked, 0);
+
+ /*
+ * At this point the memory pointed at by lock can be freed/reused,
+ * however we can still use the qnode to kick the CPU.
+ * The other vCPU may not really be halted, but kicking an active
+ * vCPU is harmless other than the additional latency in completing
+ * the unlock.
+ */
+ lockevent_inc(pv_kick_unlock);
+ pv_kick(node->cpu);
+}
+
+/*
+ * Include the architecture specific callee-save thunk of the
+ * __pv_queued_spin_unlock(). This thunk is put together with
+ * __pv_queued_spin_unlock() to make the callee-save thunk and the real unlock
+ * function close to each other sharing consecutive instruction cachelines.
+ * Alternatively, architecture specific version of __pv_queued_spin_unlock()
+ * can be defined.
+ */
+#include <asm/qspinlock_paravirt.h>
+
+#ifndef __pv_queued_spin_unlock
+__visible void __pv_queued_spin_unlock(struct qspinlock *lock)
+{
+ u8 locked;
+
+ /*
+ * We must not unlock if SLOW, because in that case we must first
+ * unhash. Otherwise it would be possible to have multiple @lock
+ * entries, which would be BAD.
+ */
+ locked = cmpxchg_release(&lock->locked, _Q_LOCKED_VAL, 0);
+ if (likely(locked == _Q_LOCKED_VAL))
+ return;
+
+ __pv_queued_spin_unlock_slowpath(lock, locked);
+}
+#endif
+
#else /* CONFIG_PARAVIRT_SPINLOCKS */
static __always_inline void pv_init_node(struct qnode *node) { }
static __always_inline void pv_wait_node(struct qnode *node,
diff --git a/kernel/locking/qspinlock_paravirt.h b/kernel/locking/qspinlock_paravirt.h
deleted file mode 100644
index f1922e3a0f7d..000000000000
--- a/kernel/locking/qspinlock_paravirt.h
+++ /dev/null
@@ -1,490 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#include <linux/hash.h>
-#include <linux/memblock.h>
-#include <linux/debug_locks.h>
-
-/*
- * Implement paravirt qspinlocks; the general idea is to halt the vcpus instead
- * of spinning them.
- *
- * This relies on the architecture to provide two paravirt hypercalls:
- *
- * pv_wait(u8 *ptr, u8 val) -- suspends the vcpu if *ptr == val
- * pv_kick(cpu) -- wakes a suspended vcpu
- *
- * Using these we implement __pv_queued_spin_lock_slowpath() and
- * __pv_queued_spin_unlock() to replace native_queued_spin_lock_slowpath() and
- * native_queued_spin_unlock().
- */
-
-#define _Q_SLOW_VAL (3U << _Q_LOCKED_OFFSET)
-
-/*
- * Queue Node Adaptive Spinning
- *
- * A queue node vCPU will stop spinning if the vCPU in the previous node is
- * not running. The one lock stealing attempt allowed at slowpath entry
- * mitigates the slight slowdown for non-overcommitted guest with this
- * aggressive wait-early mechanism.
- *
- * The status of the previous node will be checked at fixed interval
- * controlled by PV_PREV_CHECK_MASK. This is to ensure that we won't
- * pound on the cacheline of the previous node too heavily.
- */
-#define PV_PREV_CHECK_MASK 0xff
-
-/*
- * Queue node uses: vcpu_running & vcpu_halted.
- * Queue head uses: vcpu_running & vcpu_hashed.
- */
-enum vcpu_state {
- vcpu_running = 0,
- vcpu_halted, /* Used only in pv_wait_node */
- vcpu_hashed, /* = pv_hash'ed + vcpu_halted */
-};
-
-/*
- * Hybrid PV queued/unfair lock
- *
- * This function is called once when a lock waiter enters the PV slowpath
- * before being queued.
- *
- * The pending bit is set by the queue head vCPU of the MCS wait queue in
- * pv_wait_head_or_lock() to signal that it is ready to spin on the lock.
- * When that bit becomes visible to the incoming waiters, no lock stealing
- * is allowed. The function will return immediately to make the waiters
- * enter the MCS wait queue. So lock starvation shouldn't happen as long
- * as the queued mode vCPUs are actively running to set the pending bit
- * and hence disabling lock stealing.
- *
- * When the pending bit isn't set, the lock waiters will stay in the unfair
- * mode spinning on the lock unless the MCS wait queue is empty. In this
- * case, the lock waiters will enter the queued mode slowpath trying to
- * become the queue head and set the pending bit.
- *
- * This hybrid PV queued/unfair lock combines the best attributes of a
- * queued lock (no lock starvation) and an unfair lock (good performance
- * on not heavily contended locks).
- */
-static inline bool pv_hybrid_queued_unfair_trylock(struct qspinlock *lock)
-{
- /*
- * Stay in unfair lock mode as long as queued mode waiters are
- * present in the MCS wait queue but the pending bit isn't set.
- */
- for (;;) {
- int val = atomic_read(&lock->val);
-
- if (!(val & _Q_LOCKED_PENDING_MASK) &&
- (cmpxchg_acquire(&lock->locked, 0, _Q_LOCKED_VAL) == 0)) {
- lockevent_inc(pv_lock_stealing);
- return true;
- }
- if (!(val & _Q_TAIL_MASK) || (val & _Q_PENDING_MASK))
- break;
-
- cpu_relax();
- }
-
- return false;
-}
-
-/*
- * Lock and MCS node addresses hash table for fast lookup
- *
- * Hashing is done on a per-cacheline basis to minimize the need to access
- * more than one cacheline.
- *
- * Dynamically allocate a hash table big enough to hold at least 4X the
- * number of possible cpus in the system. Allocation is done on page
- * granularity. So the minimum number of hash buckets should be at least
- * 256 (64-bit) or 512 (32-bit) to fully utilize a 4k page.
- *
- * Since we should not be holding locks from NMI context (very rare indeed) the
- * max load factor is 0.75, which is around the point where open addressing
- * breaks down.
- *
- */
-struct pv_hash_entry {
- struct qspinlock *lock;
- struct qnode *node;
-};
-
-#define PV_HE_PER_LINE (SMP_CACHE_BYTES / sizeof(struct pv_hash_entry))
-#define PV_HE_MIN (PAGE_SIZE / sizeof(struct pv_hash_entry))
-
-static struct pv_hash_entry *pv_lock_hash;
-static unsigned int pv_lock_hash_bits __read_mostly;
-
-/*
- * Allocate memory for the PV qspinlock hash buckets
- *
- * This function should be called from the paravirt spinlock initialization
- * routine.
- */
-void __init __pv_init_lock_hash(void)
-{
- int pv_hash_size = ALIGN(4 * num_possible_cpus(), PV_HE_PER_LINE);
-
- if (pv_hash_size < PV_HE_MIN)
- pv_hash_size = PV_HE_MIN;
-
- /*
- * Allocate space from bootmem which should be page-size aligned
- * and hence cacheline aligned.
- */
- pv_lock_hash = alloc_large_system_hash("PV qspinlock",
- sizeof(struct pv_hash_entry),
- pv_hash_size, 0,
- HASH_EARLY | HASH_ZERO,
- &pv_lock_hash_bits, NULL,
- pv_hash_size, pv_hash_size);
-}
-
-#define for_each_hash_entry(he, offset, hash) \
- for (hash &= ~(PV_HE_PER_LINE - 1), he = &pv_lock_hash[hash], offset = 0; \
- offset < (1 << pv_lock_hash_bits); \
- offset++, he = &pv_lock_hash[(hash + offset) & ((1 << pv_lock_hash_bits) - 1)])
-
-static struct qspinlock **pv_hash(struct qspinlock *lock, struct qnode *node)
-{
- unsigned long offset, hash = hash_ptr(lock, pv_lock_hash_bits);
- struct pv_hash_entry *he;
- int hopcnt = 0;
-
- for_each_hash_entry(he, offset, hash) {
- hopcnt++;
- if (!cmpxchg(&he->lock, NULL, lock)) {
- WRITE_ONCE(he->node, node);
- lockevent_pv_hop(hopcnt);
- return &he->lock;
- }
- }
- /*
- * Hard assume there is a free entry for us.
- *
- * This is guaranteed by ensuring every blocked lock only ever consumes
- * a single entry, and since we only have 4 nesting levels per CPU
- * and allocated 4*nr_possible_cpus(), this must be so.
- *
- * The single entry is guaranteed by having the lock owner unhash
- * before it releases.
- */
- BUG();
-}
-
-static struct qnode *pv_unhash(struct qspinlock *lock)
-{
- unsigned long offset, hash = hash_ptr(lock, pv_lock_hash_bits);
- struct pv_hash_entry *he;
- struct qnode *node;
-
- for_each_hash_entry(he, offset, hash) {
- if (READ_ONCE(he->lock) == lock) {
- node = READ_ONCE(he->node);
- WRITE_ONCE(he->lock, NULL);
- return node;
- }
- }
- /*
- * Hard assume we'll find an entry.
- *
- * This guarantees a limited lookup time and is itself guaranteed by
- * having the lock owner do the unhash -- IFF the unlock sees the
- * SLOW flag, there MUST be a hash entry.
- */
- BUG();
-}
-
-/*
- * Return true if when it is time to check the previous node which is not
- * in a running state.
- */
-static inline bool
-pv_wait_early(struct qnode *prev, int loop)
-{
- if ((loop & PV_PREV_CHECK_MASK) != 0)
- return false;
-
- return READ_ONCE(prev->state) != vcpu_running;
-}
-
-/*
- * Initialize the PV part of the qnode.
- */
-static void pv_init_node(struct qnode *node)
-{
- node->cpu = smp_processor_id();
- node->state = vcpu_running;
-}
-
-/*
- * Wait for node->locked to become true, halt the vcpu after a short spin.
- * pv_kick_node() is used to set _Q_SLOW_VAL and fill in hash table on its
- * behalf.
- */
-static void pv_wait_node(struct qnode *node, struct qnode *prev)
-{
- int loop;
- bool wait_early;
-
- for (;;) {
- for (wait_early = false, loop = SPIN_THRESHOLD; loop; loop--) {
- if (READ_ONCE(node->locked))
- return;
- if (pv_wait_early(prev, loop)) {
- wait_early = true;
- break;
- }
- cpu_relax();
- }
-
- /*
- * Order node->state vs node->locked thusly:
- *
- * [S] node->state = vcpu_halted [S] next->locked = 1
- * MB MB
- * [L] node->locked [RmW] node->state = vcpu_hashed
- *
- * Matches the cmpxchg() from pv_kick_node().
- */
- smp_store_mb(node->state, vcpu_halted);
-
- if (!READ_ONCE(node->locked)) {
- lockevent_inc(pv_wait_node);
- lockevent_cond_inc(pv_wait_early, wait_early);
- pv_wait(&node->state, vcpu_halted);
- }
-
- /*
- * If pv_kick_node() changed us to vcpu_hashed, retain that
- * value so that pv_wait_head_or_lock() knows to not also try
- * to hash this lock.
- */
- cmpxchg(&node->state, vcpu_halted, vcpu_running);
-
- /*
- * If the locked flag is still not set after wakeup, it is a
- * spurious wakeup and the vCPU should wait again. However,
- * there is a pretty high overhead for CPU halting and kicking.
- * So it is better to spin for a while in the hope that the
- * MCS lock will be released soon.
- */
- lockevent_cond_inc(pv_spurious_wakeup,
- !READ_ONCE(node->locked));
- }
-
- /*
- * By now our node->locked should be 1 and our caller will not actually
- * spin-wait for it. We do however rely on our caller to do a
- * load-acquire for us.
- */
-}
-
-/*
- * Called after setting next->locked = 1 when we're the lock owner.
- *
- * Instead of waking the waiters stuck in pv_wait_node() advance their state
- * such that they're waiting in pv_wait_head_or_lock(), this avoids a
- * wake/sleep cycle.
- */
-static void pv_kick_node(struct qspinlock *lock, struct qnode *node)
-{
- /*
- * If the vCPU is indeed halted, advance its state to match that of
- * pv_wait_node(). If OTOH this fails, the vCPU was running and will
- * observe its next->locked value and advance itself.
- *
- * Matches with smp_store_mb() and cmpxchg() in pv_wait_node()
- *
- * The write to next->locked in arch_mcs_spin_unlock_contended()
- * must be ordered before the read of node->state in the cmpxchg()
- * below for the code to work correctly. To guarantee full ordering
- * irrespective of the success or failure of the cmpxchg(),
- * a relaxed version with explicit barrier is used. The control
- * dependency will order the reading of node->state before any
- * subsequent writes.
- */
- smp_mb__before_atomic();
- if (cmpxchg_relaxed(&node->state, vcpu_halted, vcpu_hashed)
- != vcpu_halted)
- return;
-
- /*
- * Put the lock into the hash table and set the _Q_SLOW_VAL.
- *
- * As this is the same vCPU that will check the _Q_SLOW_VAL value and
- * the hash table later on at unlock time, no atomic instruction is
- * needed.
- */
- WRITE_ONCE(lock->locked, _Q_SLOW_VAL);
- (void)pv_hash(lock, node);
-}
-
-/*
- * Wait for l->locked to become clear and acquire the lock;
- * halt the vcpu after a short spin.
- * __pv_queued_spin_unlock() will wake us.
- *
- * The current value of the lock will be returned for additional processing.
- */
-static u32
-pv_wait_head_or_lock(struct qspinlock *lock, struct qnode *node)
-{
- struct qspinlock **lp = NULL;
- int waitcnt = 0;
- int loop;
-
- /*
- * If pv_kick_node() already advanced our state, we don't need to
- * insert ourselves into the hash table anymore.
- */
- if (READ_ONCE(node->state) == vcpu_hashed)
- lp = (struct qspinlock **)1;
-
- /*
- * Tracking # of slowpath locking operations
- */
- lockevent_inc(lock_slowpath);
-
- for (;; waitcnt++) {
- /*
- * Set correct vCPU state to be used by queue node wait-early
- * mechanism.
- */
- WRITE_ONCE(node->state, vcpu_running);
-
- /*
- * Set the pending bit in the active lock spinning loop to
- * disable lock stealing before attempting to acquire the lock.
- */
- set_pending(lock);
- for (loop = SPIN_THRESHOLD; loop; loop--) {
- if (trylock_clear_pending(lock))
- goto gotlock;
- cpu_relax();
- }
- clear_pending(lock);
-
-
- if (!lp) { /* ONCE */
- lp = pv_hash(lock, node);
-
- /*
- * We must hash before setting _Q_SLOW_VAL, such that
- * when we observe _Q_SLOW_VAL in __pv_queued_spin_unlock()
- * we'll be sure to be able to observe our hash entry.
- *
- * [S] <hash> [Rmw] l->locked == _Q_SLOW_VAL
- * MB RMB
- * [RmW] l->locked = _Q_SLOW_VAL [L] <unhash>
- *
- * Matches the smp_rmb() in __pv_queued_spin_unlock().
- */
- if (xchg(&lock->locked, _Q_SLOW_VAL) == 0) {
- /*
- * The lock was free and now we own the lock.
- * Change the lock value back to _Q_LOCKED_VAL
- * and unhash the table.
- */
- WRITE_ONCE(lock->locked, _Q_LOCKED_VAL);
- WRITE_ONCE(*lp, NULL);
- goto gotlock;
- }
- }
- WRITE_ONCE(node->state, vcpu_hashed);
- lockevent_inc(pv_wait_head);
- lockevent_cond_inc(pv_wait_again, waitcnt);
- pv_wait(&lock->locked, _Q_SLOW_VAL);
-
- /*
- * Because of lock stealing, the queue head vCPU may not be
- * able to acquire the lock before it has to wait again.
- */
- }
-
- /*
- * The cmpxchg() or xchg() call before coming here provides the
- * acquire semantics for locking. The dummy ORing of _Q_LOCKED_VAL
- * here is to indicate to the compiler that the value will always
- * be nozero to enable better code optimization.
- */
-gotlock:
- return (u32)(atomic_read(&lock->val) | _Q_LOCKED_VAL);
-}
-
-/*
- * PV versions of the unlock fastpath and slowpath functions to be used
- * instead of queued_spin_unlock().
- */
-__visible void
-__pv_queued_spin_unlock_slowpath(struct qspinlock *lock, u8 locked)
-{
- struct qnode *node;
-
- if (unlikely(locked != _Q_SLOW_VAL)) {
- WARN(!debug_locks_silent,
- "pvqspinlock: lock 0x%lx has corrupted value 0x%x!\n",
- (unsigned long)lock, atomic_read(&lock->val));
- return;
- }
-
- /*
- * A failed cmpxchg doesn't provide any memory-ordering guarantees,
- * so we need a barrier to order the read of the node data in
- * pv_unhash *after* we've read the lock being _Q_SLOW_VAL.
- *
- * Matches the cmpxchg() in pv_wait_head_or_lock() setting _Q_SLOW_VAL.
- */
- smp_rmb();
-
- /*
- * Since the above failed to release, this must be the SLOW path.
- * Therefore start by looking up the blocked node and unhashing it.
- */
- node = pv_unhash(lock);
-
- /*
- * Now that we have a reference to the (likely) blocked qnode,
- * release the lock.
- */
- smp_store_release(&lock->locked, 0);
-
- /*
- * At this point the memory pointed at by lock can be freed/reused,
- * however we can still use the qnode to kick the CPU.
- * The other vCPU may not really be halted, but kicking an active
- * vCPU is harmless other than the additional latency in completing
- * the unlock.
- */
- lockevent_inc(pv_kick_unlock);
- pv_kick(node->cpu);
-}
-
-/*
- * Include the architecture specific callee-save thunk of the
- * __pv_queued_spin_unlock(). This thunk is put together with
- * __pv_queued_spin_unlock() to make the callee-save thunk and the real unlock
- * function close to each other sharing consecutive instruction cachelines.
- * Alternatively, architecture specific version of __pv_queued_spin_unlock()
- * can be defined.
- */
-#include <asm/qspinlock_paravirt.h>
-
-#ifndef __pv_queued_spin_unlock
-__visible void __pv_queued_spin_unlock(struct qspinlock *lock)
-{
- u8 locked;
-
- /*
- * We must not unlock if SLOW, because in that case we must first
- * unhash. Otherwise it would be possible to have multiple @lock
- * entries, which would be BAD.
- */
- locked = cmpxchg_release(&lock->locked, _Q_LOCKED_VAL, 0);
- if (likely(locked == _Q_LOCKED_VAL))
- return;
-
- __pv_queued_spin_unlock_slowpath(lock, locked);
-}
-#endif /* __pv_queued_spin_unlock */
--
2.35.1
^ permalink raw reply related [flat|nested] 20+ messages in thread
* [PATCH v2 07/12] locking/qspinlock: remove arch qspinlock_paravirt.h includes
2022-07-13 7:06 [PATCH v2 00/12] locking/qspinlock: simplify code generation Nicholas Piggin
` (5 preceding siblings ...)
2022-07-13 7:06 ` [PATCH v2 06/12] locking/qspinlock: merge qspinlock_paravirt.h into qspinlock.c Nicholas Piggin
@ 2022-07-13 7:06 ` Nicholas Piggin
2022-07-14 13:14 ` kernel test robot
2022-07-14 16:21 ` kernel test robot
2022-07-13 7:07 ` [PATCH v2 08/12] locking/qspinlock: stop renaming queued_spin_lock_slowpath to native_queued_spin_lock_slowpath Nicholas Piggin
` (4 subsequent siblings)
11 siblings, 2 replies; 20+ messages in thread
From: Nicholas Piggin @ 2022-07-13 7:06 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Nicholas Piggin, Ingo Molnar, Will Deacon, Waiman Long,
Boqun Feng, linux-kernel @ vger . kernel . org
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
arch/powerpc/include/asm/qspinlock_paravirt.h | 7 --
arch/x86/include/asm/qspinlock.h | 4 ++
arch/x86/include/asm/qspinlock_paravirt.h | 72 -------------------
arch/x86/kernel/paravirt-spinlocks.c | 71 ++++++++++++++++++
kernel/locking/qspinlock.c | 11 +--
5 files changed, 76 insertions(+), 89 deletions(-)
delete mode 100644 arch/powerpc/include/asm/qspinlock_paravirt.h
delete mode 100644 arch/x86/include/asm/qspinlock_paravirt.h
diff --git a/arch/powerpc/include/asm/qspinlock_paravirt.h b/arch/powerpc/include/asm/qspinlock_paravirt.h
deleted file mode 100644
index 6b60e7736a47..000000000000
--- a/arch/powerpc/include/asm/qspinlock_paravirt.h
+++ /dev/null
@@ -1,7 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-#ifndef _ASM_POWERPC_QSPINLOCK_PARAVIRT_H
-#define _ASM_POWERPC_QSPINLOCK_PARAVIRT_H
-
-EXPORT_SYMBOL(__pv_queued_spin_unlock);
-
-#endif /* _ASM_POWERPC_QSPINLOCK_PARAVIRT_H */
diff --git a/arch/x86/include/asm/qspinlock.h b/arch/x86/include/asm/qspinlock.h
index d87451df480b..7f914fe7bc30 100644
--- a/arch/x86/include/asm/qspinlock.h
+++ b/arch/x86/include/asm/qspinlock.h
@@ -34,6 +34,10 @@ extern void __pv_queued_spin_lock_slowpath(struct qspinlock *lock, u32 val);
extern void __raw_callee_save___pv_queued_spin_unlock(struct qspinlock *lock);
extern bool nopvspin;
+#ifdef CONFIG_64BIT
+#define __pv_queued_spin_unlock __pv_queued_spin_unlock
+#endif
+
#define queued_spin_unlock queued_spin_unlock
/**
* queued_spin_unlock - release a queued spinlock
diff --git a/arch/x86/include/asm/qspinlock_paravirt.h b/arch/x86/include/asm/qspinlock_paravirt.h
deleted file mode 100644
index 892fd8c3a6f7..000000000000
--- a/arch/x86/include/asm/qspinlock_paravirt.h
+++ /dev/null
@@ -1,72 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __ASM_QSPINLOCK_PARAVIRT_H
-#define __ASM_QSPINLOCK_PARAVIRT_H
-
-#include <asm/ibt.h>
-
-/*
- * For x86-64, PV_CALLEE_SAVE_REGS_THUNK() saves and restores 8 64-bit
- * registers. For i386, however, only 1 32-bit register needs to be saved
- * and restored. So an optimized version of __pv_queued_spin_unlock() is
- * hand-coded for 64-bit, but it isn't worthwhile to do it for 32-bit.
- */
-#ifdef CONFIG_64BIT
-
-PV_CALLEE_SAVE_REGS_THUNK(__pv_queued_spin_unlock_slowpath);
-#define __pv_queued_spin_unlock __pv_queued_spin_unlock
-#define PV_UNLOCK "__raw_callee_save___pv_queued_spin_unlock"
-#define PV_UNLOCK_SLOWPATH "__raw_callee_save___pv_queued_spin_unlock_slowpath"
-
-/*
- * Optimized assembly version of __raw_callee_save___pv_queued_spin_unlock
- * which combines the registers saving trunk and the body of the following
- * C code:
- *
- * void __pv_queued_spin_unlock(struct qspinlock *lock)
- * {
- * u8 lockval = cmpxchg(&lock->locked, _Q_LOCKED_VAL, 0);
- *
- * if (likely(lockval == _Q_LOCKED_VAL))
- * return;
- * pv_queued_spin_unlock_slowpath(lock, lockval);
- * }
- *
- * For x86-64,
- * rdi = lock (first argument)
- * rsi = lockval (second argument)
- * rdx = internal variable (set to 0)
- */
-asm (".pushsection .text;"
- ".globl " PV_UNLOCK ";"
- ".type " PV_UNLOCK ", @function;"
- ".align 4,0x90;"
- PV_UNLOCK ": "
- ASM_ENDBR
- FRAME_BEGIN
- "push %rdx;"
- "mov $0x1,%eax;"
- "xor %edx,%edx;"
- LOCK_PREFIX "cmpxchg %dl,(%rdi);"
- "cmp $0x1,%al;"
- "jne .slowpath;"
- "pop %rdx;"
- FRAME_END
- ASM_RET
- ".slowpath: "
- "push %rsi;"
- "movzbl %al,%esi;"
- "call " PV_UNLOCK_SLOWPATH ";"
- "pop %rsi;"
- "pop %rdx;"
- FRAME_END
- ASM_RET
- ".size " PV_UNLOCK ", .-" PV_UNLOCK ";"
- ".popsection");
-
-#else /* CONFIG_64BIT */
-
-extern void __pv_queued_spin_unlock(struct qspinlock *lock);
-PV_CALLEE_SAVE_REGS_THUNK(__pv_queued_spin_unlock);
-
-#endif /* CONFIG_64BIT */
-#endif
diff --git a/arch/x86/kernel/paravirt-spinlocks.c b/arch/x86/kernel/paravirt-spinlocks.c
index 9e1ea99ad9df..c6a107dfe20d 100644
--- a/arch/x86/kernel/paravirt-spinlocks.c
+++ b/arch/x86/kernel/paravirt-spinlocks.c
@@ -7,6 +7,7 @@
#include <linux/export.h>
#include <linux/jump_label.h>
+#include <asm/ibt.h>
#include <asm/paravirt.h>
__visible void __native_queued_spin_unlock(struct qspinlock *lock)
@@ -15,6 +16,76 @@ __visible void __native_queued_spin_unlock(struct qspinlock *lock)
}
PV_CALLEE_SAVE_REGS_THUNK(__native_queued_spin_unlock);
+#ifdef CONFIG_PARAVIRT_SPINLOCKS
+/*
+ * For x86-64, PV_CALLEE_SAVE_REGS_THUNK() saves and restores 8 64-bit
+ * registers. For i386, however, only 1 32-bit register needs to be saved
+ * and restored. So an optimized version of __pv_queued_spin_unlock() is
+ * hand-coded for 64-bit, but it isn't worthwhile to do it for 32-bit.
+ */
+#ifdef CONFIG_64BIT
+
+__visible void
+__pv_queued_spin_unlock_slowpath(struct qspinlock *lock, u8 locked);
+
+PV_CALLEE_SAVE_REGS_THUNK(__pv_queued_spin_unlock_slowpath);
+#define PV_UNLOCK "__raw_callee_save___pv_queued_spin_unlock"
+#define PV_UNLOCK_SLOWPATH "__raw_callee_save___pv_queued_spin_unlock_slowpath"
+
+/*
+ * Optimized assembly version of __raw_callee_save___pv_queued_spin_unlock
+ * which combines the registers saving trunk and the body of the following
+ * C code:
+ *
+ * void __pv_queued_spin_unlock(struct qspinlock *lock)
+ * {
+ * u8 lockval = cmpxchg(&lock->locked, _Q_LOCKED_VAL, 0);
+ *
+ * if (likely(lockval == _Q_LOCKED_VAL))
+ * return;
+ * pv_queued_spin_unlock_slowpath(lock, lockval);
+ * }
+ *
+ * For x86-64,
+ * rdi = lock (first argument)
+ * rsi = lockval (second argument)
+ * rdx = internal variable (set to 0)
+ */
+asm (".pushsection .text;"
+ ".globl " PV_UNLOCK ";"
+ ".type " PV_UNLOCK ", @function;"
+ ".align 4,0x90;"
+ PV_UNLOCK ": "
+ ASM_ENDBR
+ FRAME_BEGIN
+ "push %rdx;"
+ "mov $0x1,%eax;"
+ "xor %edx,%edx;"
+ LOCK_PREFIX "cmpxchg %dl,(%rdi);"
+ "cmp $0x1,%al;"
+ "jne .slowpath;"
+ "pop %rdx;"
+ FRAME_END
+ ASM_RET
+ ".slowpath: "
+ "push %rsi;"
+ "movzbl %al,%esi;"
+ "call " PV_UNLOCK_SLOWPATH ";"
+ "pop %rsi;"
+ "pop %rdx;"
+ FRAME_END
+ ASM_RET
+ ".size " PV_UNLOCK ", .-" PV_UNLOCK ";"
+ ".popsection");
+
+#else /* CONFIG_64BIT */
+
+extern void __pv_queued_spin_unlock(struct qspinlock *lock);
+PV_CALLEE_SAVE_REGS_THUNK(__pv_queued_spin_unlock);
+
+#endif /* CONFIG_64BIT */
+#endif /* CONFIG_PARAVIRT_SPINLOCKS */
+
bool pv_is_native_spin_unlock(void)
{
return pv_ops.lock.queued_spin_unlock.func ==
diff --git a/kernel/locking/qspinlock.c b/kernel/locking/qspinlock.c
index 3b3663d15402..c4f223a03345 100644
--- a/kernel/locking/qspinlock.c
+++ b/kernel/locking/qspinlock.c
@@ -745,16 +745,6 @@ __pv_queued_spin_unlock_slowpath(struct qspinlock *lock, u8 locked)
pv_kick(node->cpu);
}
-/*
- * Include the architecture specific callee-save thunk of the
- * __pv_queued_spin_unlock(). This thunk is put together with
- * __pv_queued_spin_unlock() to make the callee-save thunk and the real unlock
- * function close to each other sharing consecutive instruction cachelines.
- * Alternatively, architecture specific version of __pv_queued_spin_unlock()
- * can be defined.
- */
-#include <asm/qspinlock_paravirt.h>
-
#ifndef __pv_queued_spin_unlock
__visible void __pv_queued_spin_unlock(struct qspinlock *lock)
{
@@ -771,6 +761,7 @@ __visible void __pv_queued_spin_unlock(struct qspinlock *lock)
__pv_queued_spin_unlock_slowpath(lock, locked);
}
+EXPORT_SYMBOL(__pv_queued_spin_unlock);
#endif
#else /* CONFIG_PARAVIRT_SPINLOCKS */
--
2.35.1
^ permalink raw reply related [flat|nested] 20+ messages in thread
* [PATCH v2 08/12] locking/qspinlock: stop renaming queued_spin_lock_slowpath to native_queued_spin_lock_slowpath
2022-07-13 7:06 [PATCH v2 00/12] locking/qspinlock: simplify code generation Nicholas Piggin
` (6 preceding siblings ...)
2022-07-13 7:06 ` [PATCH v2 07/12] locking/qspinlock: remove arch qspinlock_paravirt.h includes Nicholas Piggin
@ 2022-07-13 7:07 ` Nicholas Piggin
2022-07-13 7:07 ` [PATCH v2 09/12] locking/qspinlock: rename __pv_init_lock_hash to pv_spinlocks_init Nicholas Piggin
` (3 subsequent siblings)
11 siblings, 0 replies; 20+ messages in thread
From: Nicholas Piggin @ 2022-07-13 7:07 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Nicholas Piggin, Ingo Molnar, Will Deacon, Waiman Long,
Boqun Feng, linux-kernel @ vger . kernel . org
The native version can simply be queued_spin_lock_slowpath, and the
paravirt version __pv_queued_spin_lock_slowpath, which is as they are
named in the C code.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
arch/powerpc/include/asm/qspinlock.h | 38 ++++++++++------------------
arch/x86/include/asm/qspinlock.h | 14 +++++++---
arch/x86/kernel/paravirt.c | 2 +-
kernel/locking/qspinlock.c | 8 +-----
4 files changed, 26 insertions(+), 36 deletions(-)
diff --git a/arch/powerpc/include/asm/qspinlock.h b/arch/powerpc/include/asm/qspinlock.h
index b676c4fb90fd..dd231c756233 100644
--- a/arch/powerpc/include/asm/qspinlock.h
+++ b/arch/powerpc/include/asm/qspinlock.h
@@ -7,42 +7,32 @@
#define _Q_PENDING_LOOPS (1 << 9) /* not tuned */
-#ifdef CONFIG_PARAVIRT_SPINLOCKS
-extern void native_queued_spin_lock_slowpath(struct qspinlock *lock, u32 val);
-extern void __pv_queued_spin_lock_slowpath(struct qspinlock *lock, u32 val);
-extern void __pv_queued_spin_unlock(struct qspinlock *lock);
+void queued_spin_lock_slowpath(struct qspinlock *lock, u32 val);
+void __pv_queued_spin_lock_slowpath(struct qspinlock *lock, u32 val);
+void __pv_queued_spin_unlock(struct qspinlock *lock);
-static __always_inline void queued_spin_lock_slowpath(struct qspinlock *lock, u32 val)
+static __always_inline void queued_spin_lock(struct qspinlock *lock)
{
- if (!is_shared_processor())
- native_queued_spin_lock_slowpath(lock, val);
+ u32 val = 0;
+
+ if (likely(arch_atomic_try_cmpxchg_lock(&lock->val, &val, _Q_LOCKED_VAL)))
+ return;
+
+ if (!IS_ENABLED(CONFIG_PARAVIRT_SPINLOCKS) || !is_shared_processor())
+ queued_spin_lock_slowpath(lock, val);
else
__pv_queued_spin_lock_slowpath(lock, val);
}
+#define queued_spin_lock queued_spin_lock
-#define queued_spin_unlock queued_spin_unlock
static inline void queued_spin_unlock(struct qspinlock *lock)
{
- if (!is_shared_processor())
+ if (!IS_ENABLED(CONFIG_PARAVIRT_SPINLOCKS) || !is_shared_processor())
smp_store_release(&lock->locked, 0);
else
__pv_queued_spin_unlock(lock);
}
-
-#else
-extern void queued_spin_lock_slowpath(struct qspinlock *lock, u32 val);
-#endif
-
-static __always_inline void queued_spin_lock(struct qspinlock *lock)
-{
- u32 val = 0;
-
- if (likely(arch_atomic_try_cmpxchg_lock(&lock->val, &val, _Q_LOCKED_VAL)))
- return;
-
- queued_spin_lock_slowpath(lock, val);
-}
-#define queued_spin_lock queued_spin_lock
+#define queued_spin_unlock queued_spin_unlock
#ifdef CONFIG_PARAVIRT_SPINLOCKS
#define SPIN_THRESHOLD (1<<15) /* not tuned */
diff --git a/arch/x86/include/asm/qspinlock.h b/arch/x86/include/asm/qspinlock.h
index 7f914fe7bc30..603ad61e9dfe 100644
--- a/arch/x86/include/asm/qspinlock.h
+++ b/arch/x86/include/asm/qspinlock.h
@@ -28,7 +28,7 @@ static __always_inline u32 queued_fetch_set_pending_acquire(struct qspinlock *lo
}
#ifdef CONFIG_PARAVIRT_SPINLOCKS
-extern void native_queued_spin_lock_slowpath(struct qspinlock *lock, u32 val);
+extern void queued_spin_lock_slowpath(struct qspinlock *lock, u32 val);
extern void __pv_init_lock_hash(void);
extern void __pv_queued_spin_lock_slowpath(struct qspinlock *lock, u32 val);
extern void __raw_callee_save___pv_queued_spin_unlock(struct qspinlock *lock);
@@ -38,7 +38,6 @@ extern bool nopvspin;
#define __pv_queued_spin_unlock __pv_queued_spin_unlock
#endif
-#define queued_spin_unlock queued_spin_unlock
/**
* queued_spin_unlock - release a queued spinlock
* @lock : Pointer to queued spinlock structure
@@ -50,22 +49,29 @@ static inline void native_queued_spin_unlock(struct qspinlock *lock)
smp_store_release(&lock->locked, 0);
}
-static inline void queued_spin_lock_slowpath(struct qspinlock *lock, u32 val)
+static inline void queued_spin_lock(struct qspinlock *lock)
{
+ int val = 0;
+
+ if (likely(atomic_try_cmpxchg_acquire(&lock->val, &val, _Q_LOCKED_VAL)))
+ return;
+
pv_queued_spin_lock_slowpath(lock, val);
}
+#define queued_spin_lock queued_spin_lock
static inline void queued_spin_unlock(struct qspinlock *lock)
{
kcsan_release();
pv_queued_spin_unlock(lock);
}
+#define queued_spin_unlock queued_spin_unlock
-#define vcpu_is_preempted vcpu_is_preempted
static inline bool vcpu_is_preempted(long cpu)
{
return pv_vcpu_is_preempted(cpu);
}
+#define vcpu_is_preempted vcpu_is_preempted
#endif
#ifdef CONFIG_PARAVIRT
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index 7ca2d46c08cc..f03e2962afa8 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -384,7 +384,7 @@ struct paravirt_patch_template pv_ops = {
#if defined(CONFIG_PARAVIRT_SPINLOCKS)
/* Lock ops. */
#ifdef CONFIG_SMP
- .lock.queued_spin_lock_slowpath = native_queued_spin_lock_slowpath,
+ .lock.queued_spin_lock_slowpath = queued_spin_lock_slowpath,
.lock.queued_spin_unlock =
PV_CALLEE_SAVE(__native_queued_spin_unlock),
.lock.wait = paravirt_nop,
diff --git a/kernel/locking/qspinlock.c b/kernel/locking/qspinlock.c
index c4f223a03345..4785a32a6fd2 100644
--- a/kernel/locking/qspinlock.c
+++ b/kernel/locking/qspinlock.c
@@ -297,8 +297,7 @@ static __always_inline void set_locked(struct qspinlock *lock)
* pv_kick(cpu) -- wakes a suspended vcpu
*
* Using these we implement __pv_queued_spin_lock_slowpath() and
- * __pv_queued_spin_unlock() to replace native_queued_spin_lock_slowpath() and
- * native_queued_spin_unlock().
+ * __pv_queued_spin_unlock().
*/
#define _Q_SLOW_VAL (3U << _Q_LOCKED_OFFSET)
@@ -988,10 +987,6 @@ static __always_inline void queued_spin_lock_mcs_queue(struct qspinlock *lock, b
* contended : (*,x,y) +--> (*,0,0) ---> (*,0,1) -' :
* queue : ^--' :
*/
-#ifdef CONFIG_PARAVIRT_SPINLOCKS
-#define queued_spin_lock_slowpath native_queued_spin_lock_slowpath
-#endif
-
void queued_spin_lock_slowpath(struct qspinlock *lock, u32 val)
{
if (virt_spin_lock(lock))
@@ -1072,7 +1067,6 @@ void queued_spin_lock_slowpath(struct qspinlock *lock, u32 val)
EXPORT_SYMBOL(queued_spin_lock_slowpath);
#ifdef CONFIG_PARAVIRT_SPINLOCKS
-#undef queued_spin_lock_slowpath
void __pv_queued_spin_lock_slowpath(struct qspinlock *lock, u32 val)
{
queued_spin_lock_mcs_queue(lock, true);
--
2.35.1
^ permalink raw reply related [flat|nested] 20+ messages in thread
* [PATCH v2 09/12] locking/qspinlock: rename __pv_init_lock_hash to pv_spinlocks_init
2022-07-13 7:06 [PATCH v2 00/12] locking/qspinlock: simplify code generation Nicholas Piggin
` (7 preceding siblings ...)
2022-07-13 7:07 ` [PATCH v2 08/12] locking/qspinlock: stop renaming queued_spin_lock_slowpath to native_queued_spin_lock_slowpath Nicholas Piggin
@ 2022-07-13 7:07 ` Nicholas Piggin
2022-07-13 7:07 ` [PATCH v2 10/12] locking/qspinlock: paravirt use simple trylock in case idx overflows Nicholas Piggin
` (2 subsequent siblings)
11 siblings, 0 replies; 20+ messages in thread
From: Nicholas Piggin @ 2022-07-13 7:07 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Nicholas Piggin, Ingo Molnar, Will Deacon, Waiman Long,
Boqun Feng, linux-kernel @ vger . kernel . org
The caller should not have to be aware what the implementation
initialisation does.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
arch/powerpc/include/asm/qspinlock.h | 7 -------
arch/powerpc/include/asm/spinlock.h | 2 +-
arch/x86/hyperv/hv_spinlock.c | 2 +-
arch/x86/include/asm/qspinlock.h | 1 -
arch/x86/kernel/kvm.c | 2 +-
arch/x86/xen/spinlock.c | 2 +-
include/asm-generic/qspinlock.h | 6 ++++++
kernel/locking/qspinlock.c | 2 +-
8 files changed, 11 insertions(+), 13 deletions(-)
diff --git a/arch/powerpc/include/asm/qspinlock.h b/arch/powerpc/include/asm/qspinlock.h
index dd231c756233..39c1c7f80579 100644
--- a/arch/powerpc/include/asm/qspinlock.h
+++ b/arch/powerpc/include/asm/qspinlock.h
@@ -53,13 +53,6 @@ static __always_inline void pv_kick(int cpu)
prod_cpu(cpu);
}
-extern void __pv_init_lock_hash(void);
-
-static inline void pv_spinlocks_init(void)
-{
- __pv_init_lock_hash();
-}
-
#endif
/*
diff --git a/arch/powerpc/include/asm/spinlock.h b/arch/powerpc/include/asm/spinlock.h
index bd75872a6334..7dafca8e3f02 100644
--- a/arch/powerpc/include/asm/spinlock.h
+++ b/arch/powerpc/include/asm/spinlock.h
@@ -13,7 +13,7 @@
/* See include/linux/spinlock.h */
#define smp_mb__after_spinlock() smp_mb()
-#ifndef CONFIG_PARAVIRT_SPINLOCKS
+#ifndef CONFIG_PPC_QUEUED_SPINLOCKS
static inline void pv_spinlocks_init(void) { }
#endif
diff --git a/arch/x86/hyperv/hv_spinlock.c b/arch/x86/hyperv/hv_spinlock.c
index 91cfe698bde0..c7b5c3211c79 100644
--- a/arch/x86/hyperv/hv_spinlock.c
+++ b/arch/x86/hyperv/hv_spinlock.c
@@ -76,7 +76,7 @@ void __init hv_init_spinlocks(void)
}
pr_info("PV spinlocks enabled\n");
- __pv_init_lock_hash();
+ pv_spinlocks_init();
pv_ops.lock.queued_spin_lock_slowpath = __pv_queued_spin_lock_slowpath;
pv_ops.lock.queued_spin_unlock = PV_CALLEE_SAVE(__pv_queued_spin_unlock);
pv_ops.lock.wait = hv_qlock_wait;
diff --git a/arch/x86/include/asm/qspinlock.h b/arch/x86/include/asm/qspinlock.h
index 603ad61e9dfe..9a03fcc1b2b7 100644
--- a/arch/x86/include/asm/qspinlock.h
+++ b/arch/x86/include/asm/qspinlock.h
@@ -29,7 +29,6 @@ static __always_inline u32 queued_fetch_set_pending_acquire(struct qspinlock *lo
#ifdef CONFIG_PARAVIRT_SPINLOCKS
extern void queued_spin_lock_slowpath(struct qspinlock *lock, u32 val);
-extern void __pv_init_lock_hash(void);
extern void __pv_queued_spin_lock_slowpath(struct qspinlock *lock, u32 val);
extern void __raw_callee_save___pv_queued_spin_unlock(struct qspinlock *lock);
extern bool nopvspin;
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index 1a3658f7e6d9..98a2c4d3e91d 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -1106,7 +1106,7 @@ void __init kvm_spinlock_init(void)
pr_info("PV spinlocks enabled\n");
- __pv_init_lock_hash();
+ pv_spinlocks_init();
pv_ops.lock.queued_spin_lock_slowpath = __pv_queued_spin_lock_slowpath;
pv_ops.lock.queued_spin_unlock =
PV_CALLEE_SAVE(__pv_queued_spin_unlock);
diff --git a/arch/x86/xen/spinlock.c b/arch/x86/xen/spinlock.c
index 043c73dfd2c9..5145c4aec4ea 100644
--- a/arch/x86/xen/spinlock.c
+++ b/arch/x86/xen/spinlock.c
@@ -135,7 +135,7 @@ void __init xen_init_spinlocks(void)
}
printk(KERN_DEBUG "xen: PV spinlocks enabled\n");
- __pv_init_lock_hash();
+ pv_spinlocks_init();
pv_ops.lock.queued_spin_lock_slowpath = __pv_queued_spin_lock_slowpath;
pv_ops.lock.queued_spin_unlock =
PV_CALLEE_SAVE(__pv_queued_spin_unlock);
diff --git a/include/asm-generic/qspinlock.h b/include/asm-generic/qspinlock.h
index 995513fa2690..e0fb29ee1adc 100644
--- a/include/asm-generic/qspinlock.h
+++ b/include/asm-generic/qspinlock.h
@@ -147,4 +147,10 @@ static __always_inline bool virt_spin_lock(struct qspinlock *lock)
#define arch_spin_trylock(l) queued_spin_trylock(l)
#define arch_spin_unlock(l) queued_spin_unlock(l)
+#ifdef CONFIG_PARAVIRT_SPINLOCKS
+void pv_spinlocks_init(void);
+#else
+static inline void pv_spinlocks_init(void) { }
+#endif
+
#endif /* __ASM_GENERIC_QSPINLOCK_H */
diff --git a/kernel/locking/qspinlock.c b/kernel/locking/qspinlock.c
index 4785a32a6fd2..df6d8af8f2a9 100644
--- a/kernel/locking/qspinlock.c
+++ b/kernel/locking/qspinlock.c
@@ -405,7 +405,7 @@ static unsigned int pv_lock_hash_bits __read_mostly;
* This function should be called from the paravirt spinlock initialization
* routine.
*/
-void __init __pv_init_lock_hash(void)
+void __init pv_spinlocks_init(void)
{
int pv_hash_size = ALIGN(4 * num_possible_cpus(), PV_HE_PER_LINE);
--
2.35.1
^ permalink raw reply related [flat|nested] 20+ messages in thread
* [PATCH v2 10/12] locking/qspinlock: paravirt use simple trylock in case idx overflows
2022-07-13 7:06 [PATCH v2 00/12] locking/qspinlock: simplify code generation Nicholas Piggin
` (8 preceding siblings ...)
2022-07-13 7:07 ` [PATCH v2 09/12] locking/qspinlock: rename __pv_init_lock_hash to pv_spinlocks_init Nicholas Piggin
@ 2022-07-13 7:07 ` Nicholas Piggin
2022-07-13 7:07 ` [PATCH v2 11/12] locking/qspinlock: separate pv_wait_node from the non-paravirt path Nicholas Piggin
2022-07-13 7:07 ` [PATCH v2 12/12] locking/qspinlock: simplify pv_wait_head_or_lock calling scheme Nicholas Piggin
11 siblings, 0 replies; 20+ messages in thread
From: Nicholas Piggin @ 2022-07-13 7:07 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Nicholas Piggin, Ingo Molnar, Will Deacon, Waiman Long,
Boqun Feng, linux-kernel @ vger . kernel . org
The mcs node overflow fallback locking case does not have to use
pv_hybrid_queued_unfair_trylock as the trylock, which reduces the
differences between pv and !pv cases.
This was likely an artifact of function renaming making it use the pv
trylock, which is not a bug but it is unexpected.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
kernel/locking/qspinlock.c | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)
diff --git a/kernel/locking/qspinlock.c b/kernel/locking/qspinlock.c
index df6d8af8f2a9..2ebb946a6b80 100644
--- a/kernel/locking/qspinlock.c
+++ b/kernel/locking/qspinlock.c
@@ -800,13 +800,8 @@ static __always_inline void queued_spin_lock_mcs_queue(struct qspinlock *lock, b
*/
if (unlikely(idx >= MAX_NODES)) {
lockevent_inc(lock_no_node);
- if (paravirt) {
- while (!pv_hybrid_queued_unfair_trylock(lock))
- cpu_relax();
- } else {
- while (!queued_spin_trylock(lock))
- cpu_relax();
- }
+ while (!queued_spin_trylock(lock))
+ cpu_relax();
goto release;
}
--
2.35.1
^ permalink raw reply related [flat|nested] 20+ messages in thread
* [PATCH v2 11/12] locking/qspinlock: separate pv_wait_node from the non-paravirt path
2022-07-13 7:06 [PATCH v2 00/12] locking/qspinlock: simplify code generation Nicholas Piggin
` (9 preceding siblings ...)
2022-07-13 7:07 ` [PATCH v2 10/12] locking/qspinlock: paravirt use simple trylock in case idx overflows Nicholas Piggin
@ 2022-07-13 7:07 ` Nicholas Piggin
2022-07-13 7:07 ` [PATCH v2 12/12] locking/qspinlock: simplify pv_wait_head_or_lock calling scheme Nicholas Piggin
11 siblings, 0 replies; 20+ messages in thread
From: Nicholas Piggin @ 2022-07-13 7:07 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Nicholas Piggin, Ingo Molnar, Will Deacon, Waiman Long,
Boqun Feng, linux-kernel @ vger . kernel . org
pv_wait_node waits until node->locked is non-zero, no need for the
pv case to wait again by also executing the !pv code path.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
kernel/locking/qspinlock.c | 34 ++++++++++++++++------------------
1 file changed, 16 insertions(+), 18 deletions(-)
diff --git a/kernel/locking/qspinlock.c b/kernel/locking/qspinlock.c
index 2ebb946a6b80..3255e7804842 100644
--- a/kernel/locking/qspinlock.c
+++ b/kernel/locking/qspinlock.c
@@ -506,15 +506,18 @@ static void pv_init_node(struct qnode *node)
* pv_kick_node() is used to set _Q_SLOW_VAL and fill in hash table on its
* behalf.
*/
-static void pv_wait_node(struct qnode *node, struct qnode *prev)
+static void pv_wait_node_acquire(struct qnode *node, struct qnode *prev)
{
int loop;
bool wait_early;
for (;;) {
for (wait_early = false, loop = SPIN_THRESHOLD; loop; loop--) {
- if (READ_ONCE(node->locked))
+ if (READ_ONCE(node->locked)) {
+ /* Provide the acquire ordering. */
+ smp_load_acquire(&node->locked);
return;
+ }
if (pv_wait_early(prev, loop)) {
wait_early = true;
break;
@@ -556,29 +559,23 @@ static void pv_wait_node(struct qnode *node, struct qnode *prev)
lockevent_cond_inc(pv_spurious_wakeup,
!READ_ONCE(node->locked));
}
-
- /*
- * By now our node->locked should be 1 and our caller will not actually
- * spin-wait for it. We do however rely on our caller to do a
- * load-acquire for us.
- */
}
/*
* Called after setting next->locked = 1 when we're the lock owner.
*
- * Instead of waking the waiters stuck in pv_wait_node() advance their state
- * such that they're waiting in pv_wait_head_or_lock(), this avoids a
+ * Instead of waking the waiters stuck in pv_wait_node_acquire() advance their
+ * state such that they're waiting in pv_wait_head_or_lock(), this avoids a
* wake/sleep cycle.
*/
static void pv_kick_node(struct qspinlock *lock, struct qnode *node)
{
/*
* If the vCPU is indeed halted, advance its state to match that of
- * pv_wait_node(). If OTOH this fails, the vCPU was running and will
- * observe its next->locked value and advance itself.
+ * pv_wait_node_acquire(). If OTOH this fails, the vCPU was running and
+ * will observe its next->locked value and advance itself.
*
- * Matches with smp_store_mb() and cmpxchg() in pv_wait_node()
+ * Matches with smp_store_mb() and cmpxchg() in pv_wait_node_acquire()
*
* The write to next->locked in arch_mcs_spin_unlock_contended()
* must be ordered before the read of node->state in the cmpxchg()
@@ -765,8 +762,8 @@ EXPORT_SYMBOL(__pv_queued_spin_unlock);
#else /* CONFIG_PARAVIRT_SPINLOCKS */
static __always_inline void pv_init_node(struct qnode *node) { }
-static __always_inline void pv_wait_node(struct qnode *node,
- struct qnode *prev) { }
+static __always_inline void pv_wait_node_acquire(struct qnode *node,
+ struct qnode *prev) { }
static __always_inline void pv_kick_node(struct qspinlock *lock,
struct qnode *node) { }
static __always_inline u32 pv_wait_head_or_lock(struct qspinlock *lock,
@@ -864,10 +861,11 @@ static __always_inline void queued_spin_lock_mcs_queue(struct qspinlock *lock, b
/* Link @node into the waitqueue. */
WRITE_ONCE(prev->next, node);
- if (paravirt)
- pv_wait_node(node, prev);
/* Wait for mcs node lock to be released */
- smp_cond_load_acquire(&node->locked, VAL);
+ if (paravirt)
+ pv_wait_node_acquire(node, prev);
+ else
+ smp_cond_load_acquire(&node->locked, VAL);
/*
* While waiting for the MCS lock, the next pointer may have
--
2.35.1
^ permalink raw reply related [flat|nested] 20+ messages in thread
* [PATCH v2 12/12] locking/qspinlock: simplify pv_wait_head_or_lock calling scheme
2022-07-13 7:06 [PATCH v2 00/12] locking/qspinlock: simplify code generation Nicholas Piggin
` (10 preceding siblings ...)
2022-07-13 7:07 ` [PATCH v2 11/12] locking/qspinlock: separate pv_wait_node from the non-paravirt path Nicholas Piggin
@ 2022-07-13 7:07 ` Nicholas Piggin
11 siblings, 0 replies; 20+ messages in thread
From: Nicholas Piggin @ 2022-07-13 7:07 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Nicholas Piggin, Ingo Molnar, Will Deacon, Waiman Long,
Boqun Feng, linux-kernel @ vger . kernel . org
pv_wait_head_or_lock returns the lock word value ORed with a constant,
which was done to achieve a constant folding compiler optimisation
when the code was generated for both pv and !pv cases. This is no
longer necessary with the explicit paravirt test, so make the calling
convention simpler.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
kernel/locking/qspinlock.c | 37 +++++++++++++++----------------------
1 file changed, 15 insertions(+), 22 deletions(-)
diff --git a/kernel/locking/qspinlock.c b/kernel/locking/qspinlock.c
index 3255e7804842..251980783079 100644
--- a/kernel/locking/qspinlock.c
+++ b/kernel/locking/qspinlock.c
@@ -608,8 +608,7 @@ static void pv_kick_node(struct qspinlock *lock, struct qnode *node)
*
* The current value of the lock will be returned for additional processing.
*/
-static u32
-pv_wait_head_or_lock(struct qspinlock *lock, struct qnode *node)
+static void pv_wait_head_or_lock(struct qspinlock *lock, struct qnode *node)
{
struct qspinlock **lp = NULL;
int waitcnt = 0;
@@ -641,7 +640,7 @@ pv_wait_head_or_lock(struct qspinlock *lock, struct qnode *node)
set_pending(lock);
for (loop = SPIN_THRESHOLD; loop; loop--) {
if (trylock_clear_pending(lock))
- goto gotlock;
+ return; /* got lock */
cpu_relax();
}
clear_pending(lock);
@@ -669,7 +668,7 @@ pv_wait_head_or_lock(struct qspinlock *lock, struct qnode *node)
*/
WRITE_ONCE(lock->locked, _Q_LOCKED_VAL);
WRITE_ONCE(*lp, NULL);
- goto gotlock;
+ return; /* got lock */
}
}
WRITE_ONCE(node->state, vcpu_hashed);
@@ -685,12 +684,8 @@ pv_wait_head_or_lock(struct qspinlock *lock, struct qnode *node)
/*
* The cmpxchg() or xchg() call before coming here provides the
- * acquire semantics for locking. The dummy ORing of _Q_LOCKED_VAL
- * here is to indicate to the compiler that the value will always
- * be nozero to enable better code optimization.
+ * acquire semantics for locking.
*/
-gotlock:
- return (u32)(atomic_read(&lock->val) | _Q_LOCKED_VAL);
}
/*
@@ -766,9 +761,8 @@ static __always_inline void pv_wait_node_acquire(struct qnode *node,
struct qnode *prev) { }
static __always_inline void pv_kick_node(struct qspinlock *lock,
struct qnode *node) { }
-static __always_inline u32 pv_wait_head_or_lock(struct qspinlock *lock,
- struct qnode *node)
- { return 0; }
+static __always_inline void pv_wait_head_or_lock(struct qspinlock *lock,
+ struct qnode *node) { }
static __always_inline bool pv_hybrid_queued_unfair_trylock(struct qspinlock *lock) { BUILD_BUG(); }
#endif /* CONFIG_PARAVIRT_SPINLOCKS */
@@ -889,24 +883,23 @@ static __always_inline void queued_spin_lock_mcs_queue(struct qspinlock *lock, b
* sequentiality; this is because the set_locked() function below
* does not imply a full barrier.
*
- * The PV pv_wait_head_or_lock function, if active, will acquire
- * the lock and return a non-zero value. So we have to skip the
- * atomic_cond_read_acquire() call. As the next PV queue head hasn't
- * been designated yet, there is no way for the locked value to become
- * _Q_SLOW_VAL. So both the set_locked() and the
+ * The PV pv_wait_head_or_lock function will acquire the lock, so
+ * skip the atomic_cond_read_acquire() call. As the next PV queue head
+ * hasn't been designated yet, there is no way for the locked value to
+ * become _Q_SLOW_VAL. So both the set_locked() and the
* atomic_cmpxchg_relaxed() calls will be safe.
*
* If PV isn't active, 0 will be returned instead.
*
*/
if (paravirt) {
- if ((val = pv_wait_head_or_lock(lock, node)))
- goto locked;
+ pv_wait_head_or_lock(lock, node);
+ val = atomic_read(&lock->val);
+ } else {
+ val = atomic_cond_read_acquire(&lock->val,
+ !(VAL & _Q_LOCKED_PENDING_MASK));
}
- val = atomic_cond_read_acquire(&lock->val, !(VAL & _Q_LOCKED_PENDING_MASK));
-
-locked:
/*
* claim the lock:
*
--
2.35.1
^ permalink raw reply related [flat|nested] 20+ messages in thread
* Re: [PATCH v2 07/12] locking/qspinlock: remove arch qspinlock_paravirt.h includes
2022-07-13 7:06 ` [PATCH v2 07/12] locking/qspinlock: remove arch qspinlock_paravirt.h includes Nicholas Piggin
@ 2022-07-14 13:14 ` kernel test robot
2022-07-14 16:21 ` kernel test robot
1 sibling, 0 replies; 20+ messages in thread
From: kernel test robot @ 2022-07-14 13:14 UTC (permalink / raw)
To: Nicholas Piggin
Cc: kbuild-all, Nicholas Piggin, Ingo Molnar, Will Deacon,
Waiman Long, Boqun Feng, linux-kernel @ vger . kernel . org
Hi Nicholas,
I love your patch! Perhaps something to improve:
[auto build test WARNING on tip/locking/core]
[also build test WARNING on tip/x86/core powerpc/next linus/master v5.19-rc6 next-20220714]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Nicholas-Piggin/locking-qspinlock-simplify-code-generation/20220713-151009
base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git eae6d58d67d9739be5f7ae2dbead1d0ef6528243
config: i386-allyesconfig (https://download.01.org/0day-ci/archive/20220714/202207142142.cpBOsrfO-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-3) 11.3.0
reproduce (this is a W=1 build):
# https://github.com/intel-lab-lkp/linux/commit/87679eeea9f1939c252d16df3ac6a01bf9daaa60
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Nicholas-Piggin/locking-qspinlock-simplify-code-generation/20220713-151009
git checkout 87679eeea9f1939c252d16df3ac6a01bf9daaa60
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash kernel/locking/
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
In file included from kernel/locking/qspinlock.c:29:
kernel/locking/qspinlock_stat.h:36:9: warning: no previous prototype for 'lockevent_read' [-Wmissing-prototypes]
36 | ssize_t lockevent_read(struct file *file, char __user *user_buf,
| ^~~~~~~~~~~~~~
kernel/locking/qspinlock.c:705:1: warning: no previous prototype for '__pv_queued_spin_unlock_slowpath' [-Wmissing-prototypes]
705 | __pv_queued_spin_unlock_slowpath(struct qspinlock *lock, u8 locked)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> kernel/locking/qspinlock.c:749:16: warning: no previous prototype for '__pv_queued_spin_unlock' [-Wmissing-prototypes]
749 | __visible void __pv_queued_spin_unlock(struct qspinlock *lock)
| ^~~~~~~~~~~~~~~~~~~~~~~
vim +/__pv_queued_spin_unlock +749 kernel/locking/qspinlock.c
91668ee1ed703d Nicholas Piggin 2022-07-13 747
91668ee1ed703d Nicholas Piggin 2022-07-13 748 #ifndef __pv_queued_spin_unlock
91668ee1ed703d Nicholas Piggin 2022-07-13 @749 __visible void __pv_queued_spin_unlock(struct qspinlock *lock)
91668ee1ed703d Nicholas Piggin 2022-07-13 750 {
91668ee1ed703d Nicholas Piggin 2022-07-13 751 u8 locked;
91668ee1ed703d Nicholas Piggin 2022-07-13 752
91668ee1ed703d Nicholas Piggin 2022-07-13 753 /*
91668ee1ed703d Nicholas Piggin 2022-07-13 754 * We must not unlock if SLOW, because in that case we must first
91668ee1ed703d Nicholas Piggin 2022-07-13 755 * unhash. Otherwise it would be possible to have multiple @lock
91668ee1ed703d Nicholas Piggin 2022-07-13 756 * entries, which would be BAD.
91668ee1ed703d Nicholas Piggin 2022-07-13 757 */
91668ee1ed703d Nicholas Piggin 2022-07-13 758 locked = cmpxchg_release(&lock->locked, _Q_LOCKED_VAL, 0);
91668ee1ed703d Nicholas Piggin 2022-07-13 759 if (likely(locked == _Q_LOCKED_VAL))
91668ee1ed703d Nicholas Piggin 2022-07-13 760 return;
91668ee1ed703d Nicholas Piggin 2022-07-13 761
91668ee1ed703d Nicholas Piggin 2022-07-13 762 __pv_queued_spin_unlock_slowpath(lock, locked);
91668ee1ed703d Nicholas Piggin 2022-07-13 763 }
87679eeea9f193 Nicholas Piggin 2022-07-13 764 EXPORT_SYMBOL(__pv_queued_spin_unlock);
91668ee1ed703d Nicholas Piggin 2022-07-13 765 #endif
91668ee1ed703d Nicholas Piggin 2022-07-13 766
--
0-DAY CI Kernel Test Service
https://01.org/lkp
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: [PATCH v2 06/12] locking/qspinlock: merge qspinlock_paravirt.h into qspinlock.c
2022-07-13 7:06 ` [PATCH v2 06/12] locking/qspinlock: merge qspinlock_paravirt.h into qspinlock.c Nicholas Piggin
@ 2022-07-14 14:16 ` kernel test robot
2022-07-29 3:49 ` Nicholas Piggin
2022-07-14 16:42 ` kernel test robot
2022-07-14 20:28 ` kernel test robot
2 siblings, 1 reply; 20+ messages in thread
From: kernel test robot @ 2022-07-14 14:16 UTC (permalink / raw)
To: Nicholas Piggin
Cc: llvm, kbuild-all, Nicholas Piggin, Ingo Molnar, Will Deacon,
Waiman Long, Boqun Feng, linux-kernel @ vger . kernel . org
[-- Attachment #1: Type: text/plain, Size: 4426 bytes --]
Hi Nicholas,
I love your patch! Perhaps something to improve:
[auto build test WARNING on tip/locking/core]
[also build test WARNING on tip/x86/core powerpc/next linus/master v5.19-rc6 next-20220714]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Nicholas-Piggin/locking-qspinlock-simplify-code-generation/20220713-151009
base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git eae6d58d67d9739be5f7ae2dbead1d0ef6528243
config: i386-randconfig-a004
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 5e61b9c556267086ef9b743a0b57df302eef831b)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/intel-lab-lkp/linux/commit/91668ee1ed703d7ea84e314136dc732da05ec9e7
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Nicholas-Piggin/locking-qspinlock-simplify-code-generation/20220713-151009
git checkout 91668ee1ed703d7ea84e314136dc732da05ec9e7
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash kernel/locking/
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
In file included from kernel/locking/qspinlock.c:29:
kernel/locking/qspinlock_stat.h:36:9: warning: no previous prototype for function 'lockevent_read' [-Wmissing-prototypes]
ssize_t lockevent_read(struct file *file, char __user *user_buf,
^
kernel/locking/qspinlock_stat.h:36:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
ssize_t lockevent_read(struct file *file, char __user *user_buf,
^
static
>> kernel/locking/qspinlock.c:705:1: warning: no previous prototype for function '__pv_queued_spin_unlock_slowpath' [-Wmissing-prototypes]
__pv_queued_spin_unlock_slowpath(struct qspinlock *lock, u8 locked)
^
kernel/locking/qspinlock.c:704:11: note: declare 'static' if the function is not intended to be used outside of this translation unit
__visible void
^
static
2 warnings generated.
vim +/__pv_queued_spin_unlock_slowpath +705 kernel/locking/qspinlock.c
699
700 /*
701 * PV versions of the unlock fastpath and slowpath functions to be used
702 * instead of queued_spin_unlock().
703 */
704 __visible void
> 705 __pv_queued_spin_unlock_slowpath(struct qspinlock *lock, u8 locked)
706 {
707 struct qnode *node;
708
709 if (unlikely(locked != _Q_SLOW_VAL)) {
710 WARN(!debug_locks_silent,
711 "pvqspinlock: lock 0x%lx has corrupted value 0x%x!\n",
712 (unsigned long)lock, atomic_read(&lock->val));
713 return;
714 }
715
716 /*
717 * A failed cmpxchg doesn't provide any memory-ordering guarantees,
718 * so we need a barrier to order the read of the node data in
719 * pv_unhash *after* we've read the lock being _Q_SLOW_VAL.
720 *
721 * Matches the cmpxchg() in pv_wait_head_or_lock() setting _Q_SLOW_VAL.
722 */
723 smp_rmb();
724
725 /*
726 * Since the above failed to release, this must be the SLOW path.
727 * Therefore start by looking up the blocked node and unhashing it.
728 */
729 node = pv_unhash(lock);
730
731 /*
732 * Now that we have a reference to the (likely) blocked qnode,
733 * release the lock.
734 */
735 smp_store_release(&lock->locked, 0);
736
737 /*
738 * At this point the memory pointed at by lock can be freed/reused,
739 * however we can still use the qnode to kick the CPU.
740 * The other vCPU may not really be halted, but kicking an active
741 * vCPU is harmless other than the additional latency in completing
742 * the unlock.
743 */
744 lockevent_inc(pv_kick_unlock);
745 pv_kick(node->cpu);
746 }
747
--
0-DAY CI Kernel Test Service
https://01.org/lkp
[-- Attachment #2: config --]
[-- Type: text/plain, Size: 127079 bytes --]
#
# Automatically generated file; DO NOT EDIT.
# Linux/i386 5.19.0-rc3 Kernel Configuration
#
CONFIG_CC_VERSION_TEXT="clang version 15.0.0 (git://gitmirror/llvm_project 5e61b9c556267086ef9b743a0b57df302eef831b)"
CONFIG_GCC_VERSION=0
CONFIG_CC_IS_CLANG=y
CONFIG_CLANG_VERSION=150000
CONFIG_AS_IS_LLVM=y
CONFIG_AS_VERSION=150000
CONFIG_LD_VERSION=0
CONFIG_LD_IS_LLD=y
CONFIG_LLD_VERSION=150000
CONFIG_CC_CAN_LINK=y
CONFIG_CC_CAN_LINK_STATIC=y
CONFIG_CC_HAS_ASM_GOTO=y
CONFIG_CC_HAS_ASM_GOTO_OUTPUT=y
CONFIG_TOOLS_SUPPORT_RELR=y
CONFIG_CC_HAS_ASM_INLINE=y
CONFIG_CC_HAS_NO_PROFILE_FN_ATTR=y
CONFIG_PAHOLE_VERSION=123
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_TABLE_SORT=y
CONFIG_THREAD_INFO_IN_TASK=y
#
# General setup
#
CONFIG_INIT_ENV_ARG_LIMIT=32
# CONFIG_COMPILE_TEST is not set
# CONFIG_WERROR is not set
CONFIG_UAPI_HEADER_TEST=y
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_BUILD_SALT=""
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_HAVE_KERNEL_ZSTD=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_KERNEL_ZSTD is not set
CONFIG_DEFAULT_INIT=""
CONFIG_DEFAULT_HOSTNAME="(none)"
# CONFIG_SYSVIPC is not set
# CONFIG_POSIX_MQUEUE is not set
CONFIG_WATCH_QUEUE=y
# CONFIG_CROSS_MEMORY_ATTACH is not set
CONFIG_USELIB=y
# CONFIG_AUDIT is not set
CONFIG_HAVE_ARCH_AUDITSYSCALL=y
#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y
CONFIG_GENERIC_PENDING_IRQ=y
CONFIG_GENERIC_IRQ_MIGRATION=y
CONFIG_GENERIC_IRQ_INJECTION=y
CONFIG_HARDIRQS_SW_RESEND=y
CONFIG_GENERIC_IRQ_CHIP=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_DOMAIN_HIERARCHY=y
CONFIG_GENERIC_MSI_IRQ=y
CONFIG_GENERIC_MSI_IRQ_DOMAIN=y
CONFIG_IRQ_MSI_IOMMU=y
CONFIG_GENERIC_IRQ_MATRIX_ALLOCATOR=y
CONFIG_GENERIC_IRQ_RESERVATION_MODE=y
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_SPARSE_IRQ=y
CONFIG_GENERIC_IRQ_DEBUGFS=y
# end of IRQ subsystem
CONFIG_CLOCKSOURCE_WATCHDOG=y
CONFIG_ARCH_CLOCKSOURCE_INIT=y
CONFIG_CLOCKSOURCE_VALIDATE_LAST_CYCLE=y
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST=y
CONFIG_GENERIC_CMOS_UPDATE=y
CONFIG_HAVE_POSIX_CPU_TIMERS_TASK_WORK=y
CONFIG_POSIX_CPU_TIMERS_TASK_WORK=y
#
# Timers subsystem
#
CONFIG_HZ_PERIODIC=y
# CONFIG_NO_HZ_IDLE is not set
CONFIG_NO_HZ=y
# CONFIG_HIGH_RES_TIMERS is not set
CONFIG_CLOCKSOURCE_WATCHDOG_MAX_SKEW_US=100
# end of Timers subsystem
CONFIG_BPF=y
CONFIG_HAVE_EBPF_JIT=y
#
# BPF subsystem
#
CONFIG_BPF_SYSCALL=y
# CONFIG_BPF_JIT is not set
# CONFIG_BPF_UNPRIV_DEFAULT_OFF is not set
# CONFIG_BPF_PRELOAD is not set
# end of BPF subsystem
CONFIG_PREEMPT_VOLUNTARY_BUILD=y
# CONFIG_PREEMPT_NONE is not set
CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_PREEMPT is not set
CONFIG_PREEMPT_COUNT=y
# CONFIG_PREEMPT_DYNAMIC is not set
CONFIG_SCHED_CORE=y
#
# CPU/Task time and stats accounting
#
CONFIG_TICK_CPU_ACCOUNTING=y
# CONFIG_IRQ_TIME_ACCOUNTING is not set
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set
CONFIG_PSI=y
CONFIG_PSI_DEFAULT_DISABLED=y
# end of CPU/Task time and stats accounting
CONFIG_CPU_ISOLATION=y
#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
CONFIG_RCU_EXPERT=y
CONFIG_SRCU=y
CONFIG_TREE_SRCU=y
CONFIG_TASKS_RCU_GENERIC=y
CONFIG_FORCE_TASKS_RCU=y
CONFIG_TASKS_RCU=y
CONFIG_FORCE_TASKS_RUDE_RCU=y
CONFIG_TASKS_RUDE_RCU=y
CONFIG_FORCE_TASKS_TRACE_RCU=y
CONFIG_TASKS_TRACE_RCU=y
CONFIG_RCU_STALL_COMMON=y
CONFIG_RCU_NEED_SEGCBLIST=y
CONFIG_RCU_FANOUT=32
CONFIG_RCU_FANOUT_LEAF=16
# CONFIG_RCU_NOCB_CPU is not set
# CONFIG_TASKS_TRACE_RCU_READ_MB is not set
# end of RCU Subsystem
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_IKHEADERS=y
CONFIG_LOG_BUF_SHIFT=20
CONFIG_LOG_CPU_MAX_BUF_SHIFT=12
CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT=13
CONFIG_PRINTK_INDEX=y
CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y
#
# Scheduler features
#
# end of Scheduler features
CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH=y
CONFIG_CC_IMPLICIT_FALLTHROUGH="-Wimplicit-fallthrough"
CONFIG_GCC12_NO_ARRAY_BOUNDS=y
CONFIG_CGROUPS=y
# CONFIG_MEMCG is not set
# CONFIG_BLK_CGROUP is not set
CONFIG_CGROUP_SCHED=y
CONFIG_FAIR_GROUP_SCHED=y
# CONFIG_CFS_BANDWIDTH is not set
# CONFIG_RT_GROUP_SCHED is not set
CONFIG_CGROUP_PIDS=y
# CONFIG_CGROUP_RDMA is not set
# CONFIG_CGROUP_FREEZER is not set
# CONFIG_CGROUP_HUGETLB is not set
CONFIG_CPUSETS=y
CONFIG_PROC_PID_CPUSET=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CGROUP_CPUACCT=y
# CONFIG_CGROUP_PERF is not set
CONFIG_CGROUP_BPF=y
# CONFIG_CGROUP_MISC is not set
# CONFIG_CGROUP_DEBUG is not set
CONFIG_SOCK_CGROUP_DATA=y
CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
# CONFIG_TIME_NS is not set
CONFIG_USER_NS=y
# CONFIG_PID_NS is not set
CONFIG_NET_NS=y
# CONFIG_CHECKPOINT_RESTORE is not set
CONFIG_SCHED_AUTOGROUP=y
# 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 is not set
# CONFIG_RD_LZO is not set
# CONFIG_RD_LZ4 is not set
CONFIG_RD_ZSTD=y
CONFIG_BOOT_CONFIG=y
# CONFIG_BOOT_CONFIG_EMBED is not set
CONFIG_INITRAMFS_PRESERVE_MTIME=y
# CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE is not set
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_LD_ORPHAN_WARN=y
CONFIG_SYSCTL=y
CONFIG_HAVE_UID16=y
CONFIG_SYSCTL_EXCEPTION_TRACE=y
CONFIG_HAVE_PCSPKR_PLATFORM=y
# CONFIG_EXPERT is not set
CONFIG_UID16=y
CONFIG_MULTIUSER=y
CONFIG_SGETMASK_SYSCALL=y
CONFIG_SYSFS_SYSCALL=y
CONFIG_FHANDLE=y
CONFIG_POSIX_TIMERS=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_PCSPKR_PLATFORM=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_FUTEX_PI=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_IO_URING=y
CONFIG_ADVISE_SYSCALLS=y
CONFIG_MEMBARRIER=y
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
CONFIG_KALLSYMS_BASE_RELATIVE=y
CONFIG_ARCH_HAS_MEMBARRIER_SYNC_CORE=y
CONFIG_KCMP=y
CONFIG_RSEQ=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
# end of Kernel Performance Events And Counters
# CONFIG_PROFILING is not set
CONFIG_TRACEPOINTS=y
# end of General setup
CONFIG_X86_32=y
CONFIG_X86=y
CONFIG_INSTRUCTION_DECODER=y
CONFIG_OUTPUT_FORMAT="elf32-i386"
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_MMU=y
CONFIG_ARCH_MMAP_RND_BITS_MIN=8
CONFIG_ARCH_MMAP_RND_BITS_MAX=16
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=8
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=16
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_BUG=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_ARCH_HAS_CPU_RELAX=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_ARCH_NR_GPIO=512
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_X86_32_SMP=y
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_PGTABLE_LEVELS=2
CONFIG_CC_HAS_SANE_STACKPROTECTOR=y
#
# Processor type and features
#
CONFIG_SMP=y
CONFIG_X86_FEATURE_NAMES=y
CONFIG_X86_MPPARSE=y
# CONFIG_GOLDFISH is not set
# CONFIG_RETPOLINE is not set
CONFIG_CC_HAS_SLS=y
# CONFIG_X86_CPU_RESCTRL is not set
# CONFIG_X86_BIGSMP is not set
# CONFIG_X86_EXTENDED_PLATFORM is not set
# CONFIG_X86_INTEL_LPSS is not set
# CONFIG_X86_AMD_PLATFORM_DEVICE is not set
CONFIG_IOSF_MBI=y
CONFIG_IOSF_MBI_DEBUG=y
CONFIG_X86_32_IRIS=y
# CONFIG_SCHED_OMIT_FRAME_POINTER is not set
CONFIG_HYPERVISOR_GUEST=y
CONFIG_PARAVIRT=y
# CONFIG_PARAVIRT_DEBUG is not set
CONFIG_PARAVIRT_SPINLOCKS=y
CONFIG_X86_HV_CALLBACK_VECTOR=y
CONFIG_KVM_GUEST=y
CONFIG_ARCH_CPUIDLE_HALTPOLL=y
# CONFIG_PVH is not set
# CONFIG_PARAVIRT_TIME_ACCOUNTING is not set
CONFIG_PARAVIRT_CLOCK=y
CONFIG_M486SX=y
# CONFIG_M486 is not set
# CONFIG_M586 is not set
# CONFIG_M586TSC is not set
# CONFIG_M586MMX is not set
# CONFIG_M686 is not set
# CONFIG_MPENTIUMII is not set
# CONFIG_MPENTIUMIII is not set
# CONFIG_MPENTIUMM is not set
# CONFIG_MPENTIUM4 is not set
# CONFIG_MK6 is not set
# CONFIG_MK7 is not set
# CONFIG_MK8 is not set
# CONFIG_MCRUSOE is not set
# CONFIG_MEFFICEON is not set
# CONFIG_MWINCHIPC6 is not set
# CONFIG_MWINCHIP3D is not set
# CONFIG_MELAN is not set
# CONFIG_MGEODEGX1 is not set
# CONFIG_MGEODE_LX is not set
# CONFIG_MCYRIXIII is not set
# CONFIG_MVIAC3_2 is not set
# CONFIG_MVIAC7 is not set
# CONFIG_MCORE2 is not set
# CONFIG_MATOM is not set
CONFIG_X86_GENERIC=y
CONFIG_X86_INTERNODE_CACHE_SHIFT=6
CONFIG_X86_L1_CACHE_SHIFT=6
CONFIG_X86_F00F_BUG=y
CONFIG_X86_INVD_BUG=y
CONFIG_X86_ALIGNMENT_16=y
CONFIG_X86_INTEL_USERCOPY=y
CONFIG_X86_MINIMUM_CPU_FAMILY=4
CONFIG_IA32_FEAT_CTL=y
CONFIG_X86_VMX_FEATURE_NAMES=y
CONFIG_CPU_SUP_INTEL=y
CONFIG_CPU_SUP_CYRIX_32=y
CONFIG_CPU_SUP_AMD=y
CONFIG_CPU_SUP_HYGON=y
CONFIG_CPU_SUP_CENTAUR=y
CONFIG_CPU_SUP_TRANSMETA_32=y
CONFIG_CPU_SUP_UMC_32=y
CONFIG_CPU_SUP_ZHAOXIN=y
CONFIG_CPU_SUP_VORTEX_32=y
CONFIG_HPET_TIMER=y
CONFIG_DMI=y
CONFIG_BOOT_VESA_SUPPORT=y
CONFIG_NR_CPUS_RANGE_BEGIN=2
CONFIG_NR_CPUS_RANGE_END=8
CONFIG_NR_CPUS_DEFAULT=8
CONFIG_NR_CPUS=8
CONFIG_SCHED_CLUSTER=y
CONFIG_SCHED_SMT=y
# CONFIG_SCHED_MC is not set
CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y
# CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS is not set
# CONFIG_X86_MCE is not set
#
# Performance monitoring
#
CONFIG_PERF_EVENTS_INTEL_UNCORE=y
CONFIG_PERF_EVENTS_INTEL_RAPL=y
# CONFIG_PERF_EVENTS_INTEL_CSTATE is not set
# CONFIG_PERF_EVENTS_AMD_POWER is not set
# CONFIG_PERF_EVENTS_AMD_UNCORE is not set
# CONFIG_PERF_EVENTS_AMD_BRS is not set
# end of Performance monitoring
CONFIG_X86_LEGACY_VM86=y
CONFIG_VM86=y
CONFIG_X86_16BIT=y
CONFIG_X86_ESPFIX32=y
CONFIG_X86_IOPL_IOPERM=y
CONFIG_TOSHIBA=y
CONFIG_X86_REBOOTFIXUPS=y
CONFIG_MICROCODE=y
CONFIG_MICROCODE_INTEL=y
# CONFIG_MICROCODE_AMD is not set
# CONFIG_MICROCODE_LATE_LOADING is not set
CONFIG_X86_MSR=y
CONFIG_X86_CPUID=y
# CONFIG_NOHIGHMEM is not set
CONFIG_HIGHMEM4G=y
CONFIG_PAGE_OFFSET=0xC0000000
CONFIG_HIGHMEM=y
CONFIG_X86_CPA_STATISTICS=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ILLEGAL_POINTER_VALUE=0
CONFIG_HIGHPTE=y
CONFIG_X86_CHECK_BIOS_CORRUPTION=y
# CONFIG_X86_BOOTPARAM_MEMORY_CORRUPTION_CHECK is not set
# CONFIG_MATH_EMULATION is not set
CONFIG_MTRR=y
CONFIG_MTRR_SANITIZER=y
CONFIG_MTRR_SANITIZER_ENABLE_DEFAULT=0
CONFIG_MTRR_SANITIZER_SPARE_REG_NR_DEFAULT=1
CONFIG_X86_PAT=y
CONFIG_ARCH_USES_PG_UNCACHED=y
CONFIG_ARCH_RANDOM=y
CONFIG_X86_UMIP=y
CONFIG_CC_HAS_IBT=y
# CONFIG_X86_INTEL_TSX_MODE_OFF is not set
# CONFIG_X86_INTEL_TSX_MODE_ON is not set
CONFIG_X86_INTEL_TSX_MODE_AUTO=y
# CONFIG_EFI is not set
# 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_KEXEC is not set
# CONFIG_CRASH_DUMP is not set
CONFIG_PHYSICAL_START=0x1000000
CONFIG_RELOCATABLE=y
# CONFIG_RANDOMIZE_BASE is not set
CONFIG_X86_NEED_RELOCS=y
CONFIG_PHYSICAL_ALIGN=0x200000
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_MODIFY_LDT_SYSCALL=y
# CONFIG_STRICT_SIGALTSTACK_SIZE is not set
# end of Processor type and features
CONFIG_ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE=y
#
# Power management and ACPI options
#
CONFIG_ARCH_HIBERNATION_HEADER=y
# CONFIG_SUSPEND is not set
CONFIG_HIBERNATE_CALLBACKS=y
CONFIG_HIBERNATION=y
# CONFIG_HIBERNATION_SNAPSHOT_DEV is not set
CONFIG_PM_STD_PARTITION=""
CONFIG_PM_SLEEP=y
CONFIG_PM_SLEEP_SMP=y
# CONFIG_PM_AUTOSLEEP is not set
CONFIG_PM_WAKELOCKS=y
CONFIG_PM_WAKELOCKS_LIMIT=100
# CONFIG_PM_WAKELOCKS_GC is not set
CONFIG_PM=y
CONFIG_PM_DEBUG=y
CONFIG_PM_ADVANCED_DEBUG=y
CONFIG_PM_SLEEP_DEBUG=y
CONFIG_PM_TRACE=y
CONFIG_PM_TRACE_RTC=y
CONFIG_PM_CLK=y
# CONFIG_WQ_POWER_EFFICIENT_DEFAULT is not set
CONFIG_ARCH_SUPPORTS_ACPI=y
CONFIG_ACPI=y
CONFIG_ACPI_LEGACY_TABLES_LOOKUP=y
CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC=y
CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT=y
CONFIG_ACPI_TABLE_LIB=y
# CONFIG_ACPI_DEBUGGER is not set
CONFIG_ACPI_SPCR_TABLE=y
CONFIG_ACPI_SLEEP=y
CONFIG_ACPI_REV_OVERRIDE_POSSIBLE=y
# CONFIG_ACPI_EC_DEBUGFS is not set
CONFIG_ACPI_AC=y
CONFIG_ACPI_BATTERY=y
CONFIG_ACPI_BUTTON=y
CONFIG_ACPI_VIDEO=y
CONFIG_ACPI_FAN=y
# CONFIG_ACPI_TAD is not set
# CONFIG_ACPI_DOCK is not set
CONFIG_ACPI_CPU_FREQ_PSS=y
CONFIG_ACPI_PROCESSOR_CSTATE=y
CONFIG_ACPI_PROCESSOR_IDLE=y
CONFIG_ACPI_PROCESSOR=y
# CONFIG_ACPI_IPMI is not set
CONFIG_ACPI_HOTPLUG_CPU=y
# CONFIG_ACPI_PROCESSOR_AGGREGATOR is not set
CONFIG_ACPI_THERMAL=y
CONFIG_ACPI_CUSTOM_DSDT_FILE=""
CONFIG_ARCH_HAS_ACPI_TABLE_UPGRADE=y
CONFIG_ACPI_TABLE_UPGRADE=y
# CONFIG_ACPI_DEBUG is not set
# CONFIG_ACPI_PCI_SLOT is not set
CONFIG_ACPI_CONTAINER=y
CONFIG_ACPI_HOTPLUG_IOAPIC=y
# CONFIG_ACPI_SBS is not set
# CONFIG_ACPI_HED is not set
# CONFIG_ACPI_CUSTOM_METHOD is not set
CONFIG_HAVE_ACPI_APEI=y
CONFIG_HAVE_ACPI_APEI_NMI=y
# CONFIG_ACPI_APEI is not set
# CONFIG_ACPI_DPTF is not set
# CONFIG_ACPI_CONFIGFS is not set
# CONFIG_PMIC_OPREGION is not set
CONFIG_ACPI_VIOT=y
CONFIG_X86_PM_TIMER=y
CONFIG_X86_APM_BOOT=y
CONFIG_APM=y
# CONFIG_APM_IGNORE_USER_SUSPEND is not set
CONFIG_APM_DO_ENABLE=y
# CONFIG_APM_CPU_IDLE is not set
# CONFIG_APM_DISPLAY_BLANK is not set
# CONFIG_APM_ALLOW_INTS is not set
#
# CPU Frequency scaling
#
# CONFIG_CPU_FREQ is not set
# end of CPU Frequency scaling
#
# CPU Idle
#
CONFIG_CPU_IDLE=y
# CONFIG_CPU_IDLE_GOV_LADDER is not set
# CONFIG_CPU_IDLE_GOV_MENU is not set
CONFIG_CPU_IDLE_GOV_TEO=y
CONFIG_CPU_IDLE_GOV_HALTPOLL=y
CONFIG_HALTPOLL_CPUIDLE=y
# end of CPU Idle
CONFIG_INTEL_IDLE=y
# end of Power management and ACPI options
#
# Bus options (PCI etc.)
#
# CONFIG_PCI_GOBIOS is not set
# CONFIG_PCI_GOMMCONFIG is not set
# CONFIG_PCI_GODIRECT is not set
CONFIG_PCI_GOANY=y
CONFIG_PCI_BIOS=y
CONFIG_PCI_DIRECT=y
CONFIG_PCI_MMCONFIG=y
CONFIG_ISA_DMA_API=y
# CONFIG_ISA is not set
CONFIG_SCx200=y
# CONFIG_SCx200HR_TIMER is not set
# CONFIG_OLPC is not set
CONFIG_ALIX=y
# CONFIG_NET5501 is not set
CONFIG_GEOS=y
CONFIG_AMD_NB=y
# end of Bus options (PCI etc.)
#
# Binary Emulations
#
CONFIG_COMPAT_32=y
# end of Binary Emulations
CONFIG_HAVE_ATOMIC_IOMAP=y
CONFIG_HAVE_KVM=y
CONFIG_VIRTUALIZATION=y
CONFIG_AS_AVX512=y
CONFIG_AS_SHA1_NI=y
CONFIG_AS_SHA256_NI=y
CONFIG_AS_TPAUSE=y
#
# General architecture-dependent options
#
CONFIG_CRASH_CORE=y
CONFIG_HOTPLUG_SMT=y
CONFIG_GENERIC_ENTRY=y
# CONFIG_KPROBES is not set
CONFIG_JUMP_LABEL=y
# CONFIG_STATIC_KEYS_SELFTEST is not set
# CONFIG_STATIC_CALL_SELFTEST is not set
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
CONFIG_ARCH_USE_BUILTIN_BSWAP=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_ARCH_CORRECT_STACKTRACE_ON_KRETPROBE=y
CONFIG_HAVE_FUNCTION_ERROR_INJECTION=y
CONFIG_HAVE_NMI=y
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_DMA_CONTIGUOUS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_ARCH_HAS_FORTIFY_SOURCE=y
CONFIG_ARCH_HAS_SET_MEMORY=y
CONFIG_ARCH_HAS_SET_DIRECT_MAP=y
CONFIG_HAVE_ARCH_THREAD_STRUCT_WHITELIST=y
CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT=y
CONFIG_ARCH_WANTS_NO_INSTR=y
CONFIG_ARCH_32BIT_OFF_T=y
CONFIG_HAVE_ASM_MODVERSIONS=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_RSEQ=y
CONFIG_HAVE_FUNCTION_ARG_ACCESS_API=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_HARDLOCKUP_DETECTOR_PERF=y
CONFIG_HAVE_PERF_REGS=y
CONFIG_HAVE_PERF_USER_STACK_DUMP=y
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_HAVE_ARCH_JUMP_LABEL_RELATIVE=y
CONFIG_MMU_GATHER_TABLE_FREE=y
CONFIG_MMU_GATHER_RCU_TABLE_FREE=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_HAVE_ALIGNED_STRUCT_PAGE=y
CONFIG_HAVE_CMPXCHG_LOCAL=y
CONFIG_HAVE_CMPXCHG_DOUBLE=y
CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
CONFIG_HAVE_ARCH_SECCOMP=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
CONFIG_SECCOMP=y
CONFIG_SECCOMP_FILTER=y
# CONFIG_SECCOMP_CACHE_DEBUG is not set
CONFIG_HAVE_ARCH_STACKLEAK=y
CONFIG_HAVE_STACKPROTECTOR=y
CONFIG_STACKPROTECTOR=y
CONFIG_STACKPROTECTOR_STRONG=y
CONFIG_ARCH_SUPPORTS_LTO_CLANG=y
CONFIG_ARCH_SUPPORTS_LTO_CLANG_THIN=y
CONFIG_HAS_LTO_CLANG=y
CONFIG_LTO_NONE=y
# CONFIG_LTO_CLANG_FULL is not set
# CONFIG_LTO_CLANG_THIN is not set
CONFIG_HAVE_ARCH_WITHIN_STACK_FRAMES=y
CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
CONFIG_HAVE_MOVE_PUD=y
CONFIG_HAVE_MOVE_PMD=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y
CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
CONFIG_MODULES_USE_ELF_REL=y
CONFIG_HAVE_SOFTIRQ_ON_OWN_STACK=y
CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
CONFIG_HAVE_ARCH_MMAP_RND_BITS=y
CONFIG_HAVE_EXIT_THREAD=y
CONFIG_ARCH_MMAP_RND_BITS=8
CONFIG_PAGE_SIZE_LESS_THAN_64KB=y
CONFIG_PAGE_SIZE_LESS_THAN_256KB=y
CONFIG_ISA_BUS_API=y
CONFIG_CLONE_BACKWARDS=y
CONFIG_OLD_SIGSUSPEND3=y
CONFIG_OLD_SIGACTION=y
CONFIG_COMPAT_32BIT_TIME=y
CONFIG_HAVE_ARCH_RANDOMIZE_KSTACK_OFFSET=y
CONFIG_RANDOMIZE_KSTACK_OFFSET=y
# CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT is not set
CONFIG_ARCH_HAS_STRICT_KERNEL_RWX=y
CONFIG_STRICT_KERNEL_RWX=y
CONFIG_ARCH_HAS_STRICT_MODULE_RWX=y
CONFIG_STRICT_MODULE_RWX=y
CONFIG_HAVE_ARCH_PREL32_RELOCATIONS=y
CONFIG_LOCK_EVENT_COUNTS=y
CONFIG_ARCH_HAS_MEM_ENCRYPT=y
CONFIG_HAVE_STATIC_CALL=y
CONFIG_HAVE_PREEMPT_DYNAMIC=y
CONFIG_HAVE_PREEMPT_DYNAMIC_CALL=y
CONFIG_ARCH_WANT_LD_ORPHAN_WARN=y
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
CONFIG_ARCH_SPLIT_ARG64=y
CONFIG_ARCH_HAS_PARANOID_L1D_FLUSH=y
CONFIG_DYNAMIC_SIGFRAME=y
#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
# end of GCOV-based kernel profiling
CONFIG_HAVE_GCC_PLUGINS=y
# end of General architecture-dependent options
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
# CONFIG_MODULE_FORCE_UNLOAD is not set
# CONFIG_MODULE_UNLOAD_TAINT_TRACKING is not set
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
# CONFIG_MODULE_SIG is not set
CONFIG_MODULE_COMPRESS_NONE=y
# CONFIG_MODULE_COMPRESS_GZIP is not set
# CONFIG_MODULE_COMPRESS_XZ is not set
# CONFIG_MODULE_COMPRESS_ZSTD is not set
# CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS is not set
CONFIG_MODPROBE_PATH="/sbin/modprobe"
CONFIG_MODULES_TREE_LOOKUP=y
CONFIG_BLOCK=y
CONFIG_BLOCK_LEGACY_AUTOLOAD=y
CONFIG_BLK_DEV_BSG_COMMON=y
CONFIG_BLK_DEV_BSGLIB=y
CONFIG_BLK_DEV_INTEGRITY=y
CONFIG_BLK_DEV_INTEGRITY_T10=y
CONFIG_BLK_DEV_ZONED=y
CONFIG_BLK_WBT=y
# CONFIG_BLK_WBT_MQ is not set
CONFIG_BLK_DEBUG_FS=y
CONFIG_BLK_DEBUG_FS_ZONED=y
# CONFIG_BLK_SED_OPAL is not set
CONFIG_BLK_INLINE_ENCRYPTION=y
# CONFIG_BLK_INLINE_ENCRYPTION_FALLBACK is not set
#
# Partition Types
#
CONFIG_PARTITION_ADVANCED=y
CONFIG_ACORN_PARTITION=y
# CONFIG_ACORN_PARTITION_CUMANA is not set
CONFIG_ACORN_PARTITION_EESOX=y
CONFIG_ACORN_PARTITION_ICS=y
CONFIG_ACORN_PARTITION_ADFS=y
CONFIG_ACORN_PARTITION_POWERTEC=y
# CONFIG_ACORN_PARTITION_RISCIX is not set
CONFIG_AIX_PARTITION=y
# CONFIG_OSF_PARTITION is not set
# CONFIG_AMIGA_PARTITION is not set
CONFIG_ATARI_PARTITION=y
# CONFIG_MAC_PARTITION is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_BSD_DISKLABEL=y
CONFIG_MINIX_SUBPARTITION=y
# CONFIG_SOLARIS_X86_PARTITION is not set
# CONFIG_UNIXWARE_DISKLABEL is not set
# CONFIG_LDM_PARTITION is not set
CONFIG_SGI_PARTITION=y
# CONFIG_ULTRIX_PARTITION is not set
# CONFIG_SUN_PARTITION is not set
CONFIG_KARMA_PARTITION=y
# CONFIG_EFI_PARTITION is not set
# CONFIG_SYSV68_PARTITION is not set
CONFIG_CMDLINE_PARTITION=y
# end of Partition Types
CONFIG_BLK_MQ_PCI=y
CONFIG_BLK_MQ_VIRTIO=y
CONFIG_BLK_PM=y
CONFIG_BLOCK_HOLDER_DEPRECATED=y
CONFIG_BLK_MQ_STACKING=y
#
# IO Schedulers
#
CONFIG_MQ_IOSCHED_DEADLINE=y
CONFIG_MQ_IOSCHED_KYBER=y
# CONFIG_IOSCHED_BFQ is not set
# end of IO Schedulers
CONFIG_ASN1=y
CONFIG_UNINLINE_SPIN_UNLOCK=y
CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
CONFIG_MUTEX_SPIN_ON_OWNER=y
CONFIG_RWSEM_SPIN_ON_OWNER=y
CONFIG_LOCK_SPIN_ON_OWNER=y
CONFIG_ARCH_USE_QUEUED_SPINLOCKS=y
CONFIG_QUEUED_SPINLOCKS=y
CONFIG_ARCH_USE_QUEUED_RWLOCKS=y
CONFIG_QUEUED_RWLOCKS=y
CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE=y
CONFIG_ARCH_HAS_SYNC_CORE_BEFORE_USERMODE=y
CONFIG_ARCH_HAS_SYSCALL_WRAPPER=y
CONFIG_FREEZER=y
#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
CONFIG_ELFCORE=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_BINFMT_SCRIPT=y
CONFIG_BINFMT_MISC=y
CONFIG_COREDUMP=y
# end of Executable file formats
#
# Memory Management options
#
CONFIG_SWAP=y
# CONFIG_ZSWAP is not set
#
# SLAB allocator options
#
# CONFIG_SLAB is not set
CONFIG_SLUB=y
CONFIG_SLAB_MERGE_DEFAULT=y
# CONFIG_SLAB_FREELIST_RANDOM is not set
# CONFIG_SLAB_FREELIST_HARDENED is not set
# CONFIG_SLUB_STATS is not set
CONFIG_SLUB_CPU_PARTIAL=y
# end of SLAB allocator options
CONFIG_SHUFFLE_PAGE_ALLOCATOR=y
# CONFIG_COMPAT_BRK is not set
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_FLATMEM_MANUAL=y
# CONFIG_SPARSEMEM_MANUAL is not set
CONFIG_FLATMEM=y
CONFIG_SPARSEMEM_STATIC=y
CONFIG_HAVE_FAST_GUP=y
CONFIG_EXCLUSIVE_SYSTEM_RAM=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_MEMORY_BALLOON=y
# CONFIG_BALLOON_COMPACTION is not set
CONFIG_COMPACTION=y
CONFIG_PAGE_REPORTING=y
CONFIG_MIGRATION=y
# CONFIG_BOUNCE is not set
CONFIG_VIRT_TO_BUS=y
CONFIG_MMU_NOTIFIER=y
CONFIG_KSM=y
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
# CONFIG_TRANSPARENT_HUGEPAGE is not set
CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
# CONFIG_CMA is not set
CONFIG_GENERIC_EARLY_IOREMAP=y
CONFIG_PAGE_IDLE_FLAG=y
CONFIG_IDLE_PAGE_TRACKING=y
CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
CONFIG_ARCH_HAS_CURRENT_STACK_POINTER=y
CONFIG_ARCH_HAS_VM_GET_PAGE_PROT=y
CONFIG_ZONE_DMA=y
CONFIG_VMAP_PFN=y
CONFIG_VM_EVENT_COUNTERS=y
# CONFIG_PERCPU_STATS is not set
# CONFIG_GUP_TEST is not set
CONFIG_ARCH_HAS_PTE_SPECIAL=y
CONFIG_MAPPING_DIRTY_HELPERS=y
CONFIG_KMAP_LOCAL=y
CONFIG_SECRETMEM=y
# CONFIG_ANON_VMA_NAME is not set
CONFIG_USERFAULTFD=y
#
# Data Access Monitoring
#
CONFIG_DAMON=y
CONFIG_DAMON_VADDR=y
CONFIG_DAMON_PADDR=y
# CONFIG_DAMON_SYSFS is not set
# CONFIG_DAMON_DBGFS is not set
# CONFIG_DAMON_RECLAIM is not set
# end of Data Access Monitoring
# end of Memory Management options
CONFIG_NET=y
CONFIG_SKB_EXTENSIONS=y
#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_DIAG is not set
CONFIG_UNIX=y
CONFIG_UNIX_SCM=y
CONFIG_AF_UNIX_OOB=y
# CONFIG_UNIX_DIAG is not set
# CONFIG_TLS is not set
# CONFIG_XFRM_USER is not set
# CONFIG_NET_KEY is not set
CONFIG_XDP_SOCKETS=y
CONFIG_XDP_SOCKETS_DIAG=y
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
# CONFIG_IP_PNP_BOOTP is not set
# CONFIG_IP_PNP_RARP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE_DEMUX is not set
CONFIG_NET_IP_TUNNEL=y
# CONFIG_SYN_COOKIES is not set
# CONFIG_NET_IPVTI is not set
# CONFIG_NET_FOU is not set
# CONFIG_NET_FOU_IP_TUNNELS is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
CONFIG_INET_TUNNEL=y
CONFIG_INET_DIAG=y
CONFIG_INET_TCP_DIAG=y
# CONFIG_INET_UDP_DIAG is not set
# CONFIG_INET_RAW_DIAG is not set
# CONFIG_INET_DIAG_DESTROY is not set
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
CONFIG_IPV6=y
# CONFIG_IPV6_ROUTER_PREF is not set
# CONFIG_IPV6_OPTIMISTIC_DAD is not set
# CONFIG_INET6_AH is not set
# CONFIG_INET6_ESP is not set
# CONFIG_INET6_IPCOMP is not set
# CONFIG_IPV6_MIP6 is not set
# CONFIG_IPV6_VTI is not set
CONFIG_IPV6_SIT=y
# CONFIG_IPV6_SIT_6RD is not set
CONFIG_IPV6_NDISC_NODETYPE=y
# CONFIG_IPV6_TUNNEL is not set
# CONFIG_IPV6_MULTIPLE_TABLES is not set
# CONFIG_IPV6_MROUTE is not set
# CONFIG_IPV6_SEG6_LWTUNNEL is not set
# CONFIG_IPV6_SEG6_HMAC is not set
# CONFIG_IPV6_RPL_LWTUNNEL is not set
# CONFIG_IPV6_IOAM6_LWTUNNEL is not set
# CONFIG_NETLABEL is not set
CONFIG_MPTCP=y
CONFIG_INET_MPTCP_DIAG=y
CONFIG_MPTCP_IPV6=y
# CONFIG_NETWORK_SECMARK is not set
CONFIG_NET_PTP_CLASSIFY=y
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
# CONFIG_NETFILTER is not set
# CONFIG_BPFILTER is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
CONFIG_ATM=y
# CONFIG_ATM_CLIP is not set
# CONFIG_ATM_LANE is not set
# CONFIG_ATM_BR2684 is not set
# CONFIG_L2TP is not set
# CONFIG_BRIDGE is not set
# CONFIG_NET_DSA is not set
# CONFIG_VLAN_8021Q is not set
CONFIG_DECNET=y
# CONFIG_DECNET_ROUTER is not set
CONFIG_LLC=y
# CONFIG_LLC2 is not set
CONFIG_ATALK=y
CONFIG_DEV_APPLETALK=y
CONFIG_IPDDP=y
CONFIG_IPDDP_ENCAP=y
# CONFIG_X25 is not set
CONFIG_LAPB=y
CONFIG_PHONET=y
# CONFIG_6LOWPAN is not set
CONFIG_IEEE802154=y
CONFIG_IEEE802154_NL802154_EXPERIMENTAL=y
CONFIG_IEEE802154_SOCKET=y
CONFIG_MAC802154=y
# CONFIG_NET_SCHED is not set
CONFIG_DCB=y
CONFIG_DNS_RESOLVER=y
CONFIG_BATMAN_ADV=y
CONFIG_BATMAN_ADV_BATMAN_V=y
CONFIG_BATMAN_ADV_BLA=y
CONFIG_BATMAN_ADV_DAT=y
# CONFIG_BATMAN_ADV_NC is not set
CONFIG_BATMAN_ADV_MCAST=y
# CONFIG_BATMAN_ADV_DEBUG is not set
# CONFIG_BATMAN_ADV_TRACING is not set
# CONFIG_OPENVSWITCH is not set
CONFIG_VSOCKETS=y
CONFIG_VSOCKETS_DIAG=y
CONFIG_VSOCKETS_LOOPBACK=y
# CONFIG_VIRTIO_VSOCKETS is not set
CONFIG_VIRTIO_VSOCKETS_COMMON=y
# CONFIG_NETLINK_DIAG is not set
# CONFIG_MPLS is not set
CONFIG_NET_NSH=y
CONFIG_HSR=y
# CONFIG_NET_SWITCHDEV is not set
# CONFIG_NET_L3_MASTER_DEV is not set
CONFIG_QRTR=y
CONFIG_QRTR_SMD=y
CONFIG_QRTR_TUN=y
# CONFIG_NET_NCSI is not set
CONFIG_PCPU_DEV_REFCNT=y
CONFIG_RPS=y
CONFIG_RFS_ACCEL=y
CONFIG_SOCK_RX_QUEUE_MAPPING=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_STREAM_PARSER is not set
CONFIG_NET_FLOW_LIMIT=y
#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_NET_DROP_MONITOR is not set
# end of Network testing
# end of Networking options
# CONFIG_HAMRADIO is not set
CONFIG_CAN=y
# CONFIG_CAN_RAW is not set
CONFIG_CAN_BCM=y
# CONFIG_CAN_GW is not set
# CONFIG_CAN_J1939 is not set
# CONFIG_CAN_ISOTP is not set
#
# CAN Device Drivers
#
# CONFIG_CAN_VCAN is not set
# CONFIG_CAN_VXCAN is not set
# CONFIG_CAN_SLCAN is not set
# CONFIG_CAN_DEV is not set
# CONFIG_CAN_DEBUG_DEVICES is not set
# end of CAN Device Drivers
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
# CONFIG_AF_KCM is not set
CONFIG_MCTP=y
# CONFIG_WIRELESS is not set
CONFIG_RFKILL=y
CONFIG_RFKILL_LEDS=y
CONFIG_RFKILL_INPUT=y
# CONFIG_RFKILL_GPIO is not set
CONFIG_NET_9P=y
CONFIG_NET_9P_FD=y
CONFIG_NET_9P_VIRTIO=y
CONFIG_NET_9P_DEBUG=y
# CONFIG_CAIF is not set
# CONFIG_CEPH_LIB is not set
CONFIG_NFC=y
# CONFIG_NFC_DIGITAL is not set
CONFIG_NFC_NCI=y
# CONFIG_NFC_NCI_UART is not set
CONFIG_NFC_HCI=y
# CONFIG_NFC_SHDLC is not set
#
# Near Field Communication (NFC) devices
#
CONFIG_NFC_MEI_PHY=y
CONFIG_NFC_VIRTUAL_NCI=y
CONFIG_NFC_FDP=y
# CONFIG_NFC_FDP_I2C is not set
CONFIG_NFC_PN544=y
CONFIG_NFC_PN544_MEI=y
CONFIG_NFC_PN533=y
CONFIG_NFC_PN533_I2C=y
CONFIG_NFC_PN532_UART=y
CONFIG_NFC_MICROREAD=y
CONFIG_NFC_MICROREAD_MEI=y
CONFIG_NFC_ST_NCI=y
CONFIG_NFC_ST_NCI_I2C=y
CONFIG_NFC_NXP_NCI=y
CONFIG_NFC_NXP_NCI_I2C=y
CONFIG_NFC_S3FWRN5=y
# CONFIG_NFC_S3FWRN5_I2C is not set
CONFIG_NFC_S3FWRN82_UART=y
# end of Near Field Communication (NFC) devices
CONFIG_PSAMPLE=y
CONFIG_NET_IFE=y
# CONFIG_LWTUNNEL is not set
CONFIG_DST_CACHE=y
CONFIG_GRO_CELLS=y
CONFIG_NET_SELFTESTS=y
CONFIG_NET_SOCK_MSG=y
CONFIG_NET_DEVLINK=y
CONFIG_PAGE_POOL=y
# CONFIG_PAGE_POOL_STATS is not set
CONFIG_FAILOVER=y
# CONFIG_ETHTOOL_NETLINK is not set
#
# Device Drivers
#
CONFIG_HAVE_EISA=y
CONFIG_EISA=y
# CONFIG_EISA_VLB_PRIMING is not set
# CONFIG_EISA_PCI_EISA is not set
# CONFIG_EISA_VIRTUAL_ROOT is not set
# CONFIG_EISA_NAMES is not set
CONFIG_HAVE_PCI=y
CONFIG_PCI=y
CONFIG_PCI_DOMAINS=y
# CONFIG_PCIEPORTBUS is not set
CONFIG_PCIEASPM=y
# CONFIG_PCIEASPM_DEFAULT is not set
# CONFIG_PCIEASPM_POWERSAVE is not set
CONFIG_PCIEASPM_POWER_SUPERSAVE=y
# CONFIG_PCIEASPM_PERFORMANCE is not set
CONFIG_PCIE_PTM=y
CONFIG_PCI_MSI=y
CONFIG_PCI_MSI_IRQ_DOMAIN=y
CONFIG_PCI_QUIRKS=y
# CONFIG_PCI_DEBUG is not set
CONFIG_PCI_STUB=y
CONFIG_PCI_ATS=y
CONFIG_PCI_LOCKLESS_CONFIG=y
# CONFIG_PCI_IOV is not set
# CONFIG_PCI_PRI is not set
CONFIG_PCI_PASID=y
CONFIG_PCI_LABEL=y
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=16
# CONFIG_HOTPLUG_PCI is not set
#
# PCI controller drivers
#
#
# DesignWare PCI Core Support
#
CONFIG_PCIE_DW=y
CONFIG_PCIE_DW_HOST=y
CONFIG_PCIE_DW_EP=y
CONFIG_PCIE_DW_PLAT=y
# CONFIG_PCIE_DW_PLAT_HOST is not set
CONFIG_PCIE_DW_PLAT_EP=y
CONFIG_PCI_MESON=y
# end of DesignWare PCI Core Support
#
# Mobiveil PCIe Core Support
#
# end of Mobiveil PCIe Core Support
#
# Cadence PCIe controllers support
#
# end of Cadence PCIe controllers support
# end of PCI controller drivers
#
# PCI Endpoint
#
CONFIG_PCI_ENDPOINT=y
CONFIG_PCI_ENDPOINT_CONFIGFS=y
# CONFIG_PCI_EPF_TEST is not set
CONFIG_PCI_EPF_NTB=y
# end of PCI Endpoint
#
# PCI switch controller drivers
#
CONFIG_PCI_SW_SWITCHTEC=y
# end of PCI switch controller drivers
CONFIG_CXL_BUS=y
CONFIG_CXL_PCI=y
CONFIG_CXL_MEM_RAW_COMMANDS=y
CONFIG_CXL_ACPI=y
CONFIG_CXL_MEM=y
CONFIG_CXL_PORT=y
# CONFIG_PCCARD is not set
# CONFIG_RAPIDIO is not set
#
# Generic Driver Options
#
CONFIG_AUXILIARY_BUS=y
# CONFIG_UEVENT_HELPER is not set
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
# CONFIG_DEVTMPFS_SAFE is not set
# CONFIG_STANDALONE is not set
CONFIG_PREVENT_FIRMWARE_BUILD=y
#
# Firmware loader
#
CONFIG_FW_LOADER=y
CONFIG_FW_LOADER_PAGED_BUF=y
CONFIG_FW_LOADER_SYSFS=y
CONFIG_EXTRA_FIRMWARE=""
CONFIG_FW_LOADER_USER_HELPER=y
# CONFIG_FW_LOADER_USER_HELPER_FALLBACK is not set
CONFIG_FW_LOADER_COMPRESS=y
CONFIG_FW_LOADER_COMPRESS_XZ=y
# CONFIG_FW_LOADER_COMPRESS_ZSTD is not set
# CONFIG_FW_CACHE is not set
# CONFIG_FW_UPLOAD is not set
# end of Firmware loader
CONFIG_ALLOW_DEV_COREDUMP=y
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_DEBUG_TEST_DRIVER_REMOVE is not set
# CONFIG_TEST_ASYNC_DRIVER_PROBE is not set
CONFIG_GENERIC_CPU_AUTOPROBE=y
CONFIG_GENERIC_CPU_VULNERABILITIES=y
CONFIG_REGMAP=y
CONFIG_REGMAP_I2C=y
CONFIG_REGMAP_MMIO=y
CONFIG_REGMAP_IRQ=y
CONFIG_DMA_SHARED_BUFFER=y
# CONFIG_DMA_FENCE_TRACE is not set
# end of Generic Driver Options
#
# Bus devices
#
# CONFIG_MHI_BUS is not set
# CONFIG_MHI_BUS_EP is not set
# end of Bus devices
CONFIG_CONNECTOR=y
CONFIG_PROC_EVENTS=y
#
# Firmware Drivers
#
#
# ARM System Control and Management Interface Protocol
#
# end of ARM System Control and Management Interface Protocol
CONFIG_EDD=y
CONFIG_EDD_OFF=y
CONFIG_FIRMWARE_MEMMAP=y
CONFIG_DMIID=y
# CONFIG_DMI_SYSFS is not set
CONFIG_DMI_SCAN_MACHINE_NON_EFI_FALLBACK=y
# CONFIG_FW_CFG_SYSFS is not set
CONFIG_SYSFB=y
# CONFIG_SYSFB_SIMPLEFB is not set
# CONFIG_GOOGLE_FIRMWARE is not set
#
# Tegra firmware driver
#
# end of Tegra firmware driver
# end of Firmware Drivers
CONFIG_GNSS=y
CONFIG_GNSS_SERIAL=y
# CONFIG_GNSS_MTK_SERIAL is not set
CONFIG_GNSS_SIRF_SERIAL=y
CONFIG_GNSS_UBX_SERIAL=y
CONFIG_MTD=y
# CONFIG_MTD_TESTS is not set
#
# Partition parsers
#
CONFIG_MTD_AR7_PARTS=y
# CONFIG_MTD_CMDLINE_PARTS is not set
CONFIG_MTD_REDBOOT_PARTS=y
CONFIG_MTD_REDBOOT_DIRECTORY_BLOCK=-1
CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED=y
# CONFIG_MTD_REDBOOT_PARTS_READONLY is not set
# end of Partition parsers
#
# User Modules And Translation Layers
#
CONFIG_MTD_BLKDEVS=y
CONFIG_MTD_BLOCK=y
#
# Note that in some cases UBI block is preferred. See MTD_UBI_BLOCK.
#
CONFIG_FTL=y
CONFIG_NFTL=y
# CONFIG_NFTL_RW is not set
CONFIG_INFTL=y
CONFIG_RFD_FTL=y
CONFIG_SSFDC=y
# CONFIG_SM_FTL is not set
CONFIG_MTD_OOPS=y
CONFIG_MTD_SWAP=y
# CONFIG_MTD_PARTITIONED_MASTER is not set
#
# RAM/ROM/Flash chip drivers
#
CONFIG_MTD_CFI=y
# CONFIG_MTD_JEDECPROBE is not set
CONFIG_MTD_GEN_PROBE=y
# 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_CFI_I1=y
CONFIG_MTD_CFI_I2=y
# CONFIG_MTD_CFI_INTELEXT is not set
CONFIG_MTD_CFI_AMDSTD=y
CONFIG_MTD_CFI_STAA=y
CONFIG_MTD_CFI_UTIL=y
CONFIG_MTD_RAM=y
CONFIG_MTD_ROM=y
CONFIG_MTD_ABSENT=y
# end of RAM/ROM/Flash chip drivers
#
# Mapping drivers for chip access
#
CONFIG_MTD_COMPLEX_MAPPINGS=y
# CONFIG_MTD_PHYSMAP is not set
# CONFIG_MTD_SCx200_DOCFLASH is not set
# CONFIG_MTD_PCI is not set
# CONFIG_MTD_INTEL_VR_NOR is not set
CONFIG_MTD_PLATRAM=y
# end of Mapping drivers for chip access
#
# Self-contained MTD device drivers
#
CONFIG_MTD_PMC551=y
# CONFIG_MTD_PMC551_BUGFIX is not set
# CONFIG_MTD_PMC551_DEBUG is not set
# CONFIG_MTD_SLRAM is not set
CONFIG_MTD_PHRAM=y
CONFIG_MTD_MTDRAM=y
CONFIG_MTDRAM_TOTAL_SIZE=4096
CONFIG_MTDRAM_ERASE_SIZE=128
CONFIG_MTD_BLOCK2MTD=y
#
# Disk-On-Chip Device Drivers
#
# CONFIG_MTD_DOCG3 is not set
# end of Self-contained MTD device drivers
#
# NAND
#
CONFIG_MTD_NAND_CORE=y
CONFIG_MTD_ONENAND=y
CONFIG_MTD_ONENAND_VERIFY_WRITE=y
CONFIG_MTD_ONENAND_GENERIC=y
# CONFIG_MTD_ONENAND_OTP is not set
CONFIG_MTD_ONENAND_2X_PROGRAM=y
CONFIG_MTD_RAW_NAND=y
#
# Raw/parallel NAND flash controllers
#
# CONFIG_MTD_NAND_DENALI_PCI is not set
CONFIG_MTD_NAND_CAFE=y
CONFIG_MTD_NAND_CS553X=y
CONFIG_MTD_NAND_MXIC=y
# CONFIG_MTD_NAND_GPIO is not set
# CONFIG_MTD_NAND_PLATFORM is not set
CONFIG_MTD_NAND_ARASAN=y
#
# Misc
#
# CONFIG_MTD_NAND_NANDSIM is not set
# CONFIG_MTD_NAND_RICOH is not set
CONFIG_MTD_NAND_DISKONCHIP=y
# CONFIG_MTD_NAND_DISKONCHIP_PROBE_ADVANCED is not set
CONFIG_MTD_NAND_DISKONCHIP_PROBE_ADDRESS=0
# CONFIG_MTD_NAND_DISKONCHIP_BBTWRITE is not set
#
# ECC engine support
#
CONFIG_MTD_NAND_ECC=y
# CONFIG_MTD_NAND_ECC_SW_HAMMING is not set
CONFIG_MTD_NAND_ECC_SW_BCH=y
# CONFIG_MTD_NAND_ECC_MXIC is not set
# end of ECC engine support
# end of NAND
#
# LPDDR & LPDDR2 PCM memory drivers
#
# CONFIG_MTD_LPDDR is not set
# end of LPDDR & LPDDR2 PCM memory drivers
CONFIG_MTD_UBI=y
CONFIG_MTD_UBI_WL_THRESHOLD=4096
CONFIG_MTD_UBI_BEB_LIMIT=20
CONFIG_MTD_UBI_FASTMAP=y
# CONFIG_MTD_UBI_GLUEBI is not set
# CONFIG_MTD_UBI_BLOCK is not set
CONFIG_MTD_HYPERBUS=y
# CONFIG_OF is not set
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
CONFIG_PARPORT=y
CONFIG_PARPORT_PC=y
# CONFIG_PARPORT_SERIAL is not set
CONFIG_PARPORT_PC_FIFO=y
# CONFIG_PARPORT_PC_SUPERIO is not set
CONFIG_PARPORT_AX88796=y
# CONFIG_PARPORT_1284 is not set
CONFIG_PARPORT_NOT_PC=y
CONFIG_PNP=y
CONFIG_PNP_DEBUG_MESSAGES=y
#
# Protocols
#
CONFIG_PNPACPI=y
CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_NULL_BLK is not set
# CONFIG_BLK_DEV_FD is not set
# CONFIG_PARIDE is not set
# CONFIG_BLK_DEV_PCIESSD_MTIP32XX is not set
# CONFIG_ZRAM is not set
# CONFIG_BLK_DEV_LOOP is not set
# CONFIG_BLK_DEV_DRBD is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
# CONFIG_VIRTIO_BLK is not set
# CONFIG_BLK_DEV_RBD is not set
#
# NVME Support
#
CONFIG_NVME_CORE=y
CONFIG_BLK_DEV_NVME=y
# CONFIG_NVME_MULTIPATH is not set
# CONFIG_NVME_VERBOSE_ERRORS is not set
# CONFIG_NVME_HWMON is not set
CONFIG_NVME_FABRICS=y
CONFIG_NVME_FC=y
# CONFIG_NVME_TCP is not set
CONFIG_NVME_TARGET=y
# CONFIG_NVME_TARGET_PASSTHRU is not set
# CONFIG_NVME_TARGET_LOOP is not set
CONFIG_NVME_TARGET_FC=y
CONFIG_NVME_TARGET_FCLOOP=y
# CONFIG_NVME_TARGET_TCP is not set
# end of NVME Support
#
# Misc devices
#
CONFIG_SENSORS_LIS3LV02D=y
CONFIG_AD525X_DPOT=y
# CONFIG_AD525X_DPOT_I2C is not set
# CONFIG_DUMMY_IRQ is not set
# CONFIG_IBM_ASM is not set
# CONFIG_PHANTOM is not set
CONFIG_TIFM_CORE=y
# CONFIG_TIFM_7XX1 is not set
CONFIG_ICS932S401=y
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_CS5535_MFGPT is not set
CONFIG_HP_ILO=y
# CONFIG_APDS9802ALS is not set
CONFIG_ISL29003=y
CONFIG_ISL29020=y
CONFIG_SENSORS_TSL2550=y
CONFIG_SENSORS_BH1770=y
CONFIG_SENSORS_APDS990X=y
CONFIG_HMC6352=y
CONFIG_DS1682=y
CONFIG_PCH_PHUB=y
# CONFIG_SRAM is not set
CONFIG_DW_XDATA_PCIE=y
# CONFIG_PCI_ENDPOINT_TEST is not set
CONFIG_XILINX_SDFEC=y
CONFIG_C2PORT=y
CONFIG_C2PORT_DURAMAR_2150=y
#
# EEPROM support
#
CONFIG_EEPROM_AT24=y
CONFIG_EEPROM_LEGACY=y
CONFIG_EEPROM_MAX6875=y
CONFIG_EEPROM_93CX6=y
CONFIG_EEPROM_IDT_89HPESX=y
CONFIG_EEPROM_EE1004=y
# end of EEPROM support
CONFIG_CB710_CORE=y
CONFIG_CB710_DEBUG=y
CONFIG_CB710_DEBUG_ASSUMPTIONS=y
#
# Texas Instruments shared transport line discipline
#
CONFIG_TI_ST=y
# end of Texas Instruments shared transport line discipline
CONFIG_SENSORS_LIS3_I2C=y
CONFIG_ALTERA_STAPL=y
CONFIG_INTEL_MEI=y
CONFIG_INTEL_MEI_ME=y
# CONFIG_INTEL_MEI_TXE is not set
# CONFIG_INTEL_MEI_GSC is not set
CONFIG_INTEL_MEI_HDCP=y
CONFIG_INTEL_MEI_PXP=y
# CONFIG_VMWARE_VMCI is not set
# CONFIG_ECHO is not set
CONFIG_BCM_VK=y
CONFIG_BCM_VK_TTY=y
CONFIG_MISC_ALCOR_PCI=y
# CONFIG_MISC_RTSX_PCI is not set
CONFIG_HABANA_AI=y
CONFIG_UACCE=y
# CONFIG_PVPANIC is not set
# end of Misc devices
#
# SCSI device support
#
CONFIG_SCSI_MOD=y
CONFIG_RAID_ATTRS=y
CONFIG_SCSI_COMMON=y
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
# CONFIG_SCSI_PROC_FS is not set
#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
# CONFIG_BLK_DEV_SR is not set
CONFIG_CHR_DEV_SG=y
CONFIG_BLK_DEV_BSG=y
# CONFIG_CHR_DEV_SCH is not set
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
# CONFIG_SCSI_SCAN_ASYNC is not set
#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=y
# CONFIG_SCSI_FC_ATTRS is not set
CONFIG_SCSI_ISCSI_ATTRS=y
CONFIG_SCSI_SAS_ATTRS=y
# CONFIG_SCSI_SAS_LIBSAS is not set
CONFIG_SCSI_SRP_ATTRS=y
# end of SCSI Transports
# CONFIG_SCSI_LOWLEVEL is not set
# CONFIG_SCSI_DH is not set
# end of SCSI device support
CONFIG_ATA=y
CONFIG_SATA_HOST=y
CONFIG_PATA_TIMINGS=y
CONFIG_ATA_VERBOSE_ERROR=y
CONFIG_ATA_FORCE=y
CONFIG_ATA_ACPI=y
# CONFIG_SATA_ZPODD is not set
# CONFIG_SATA_PMP is not set
#
# Controllers with non-SFF native interface
#
# CONFIG_SATA_AHCI is not set
# CONFIG_SATA_AHCI_PLATFORM is not set
# CONFIG_SATA_INIC162X is not set
CONFIG_SATA_ACARD_AHCI=y
# CONFIG_SATA_SIL24 is not set
CONFIG_ATA_SFF=y
#
# SFF controllers with custom DMA interface
#
CONFIG_PDC_ADMA=y
CONFIG_SATA_QSTOR=y
CONFIG_SATA_SX4=y
# CONFIG_ATA_BMDMA is not set
#
# PIO-only SFF controllers
#
# CONFIG_PATA_CMD640_PCI is not set
CONFIG_PATA_MPIIX=y
CONFIG_PATA_NS87410=y
# CONFIG_PATA_OPTI is not set
# CONFIG_PATA_RZ1000 is not set
#
# Generic fallback / legacy drivers
#
CONFIG_PATA_LEGACY=y
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
# CONFIG_MD_AUTODETECT is not set
CONFIG_MD_LINEAR=y
CONFIG_MD_RAID0=y
# CONFIG_MD_RAID1 is not set
# CONFIG_MD_RAID10 is not set
# CONFIG_MD_RAID456 is not set
# CONFIG_MD_MULTIPATH is not set
# CONFIG_MD_FAULTY is not set
CONFIG_BCACHE=y
# CONFIG_BCACHE_DEBUG is not set
CONFIG_BCACHE_CLOSURES_DEBUG=y
# CONFIG_BCACHE_ASYNC_REGISTRATION is not set
CONFIG_BLK_DEV_DM_BUILTIN=y
CONFIG_BLK_DEV_DM=y
# CONFIG_DM_DEBUG is not set
CONFIG_DM_BUFIO=y
CONFIG_DM_DEBUG_BLOCK_MANAGER_LOCKING=y
CONFIG_DM_DEBUG_BLOCK_STACK_TRACING=y
CONFIG_DM_BIO_PRISON=y
CONFIG_DM_PERSISTENT_DATA=y
CONFIG_DM_UNSTRIPED=y
CONFIG_DM_CRYPT=y
CONFIG_DM_SNAPSHOT=y
# CONFIG_DM_THIN_PROVISIONING is not set
CONFIG_DM_CACHE=y
CONFIG_DM_CACHE_SMQ=y
# CONFIG_DM_WRITECACHE is not set
# CONFIG_DM_ERA is not set
CONFIG_DM_CLONE=y
CONFIG_DM_MIRROR=y
# CONFIG_DM_LOG_USERSPACE is not set
# CONFIG_DM_RAID is not set
CONFIG_DM_ZERO=y
CONFIG_DM_MULTIPATH=y
CONFIG_DM_MULTIPATH_QL=y
CONFIG_DM_MULTIPATH_ST=y
# CONFIG_DM_MULTIPATH_HST is not set
# CONFIG_DM_MULTIPATH_IOA is not set
# CONFIG_DM_DELAY is not set
CONFIG_DM_DUST=y
CONFIG_DM_INIT=y
CONFIG_DM_UEVENT=y
# CONFIG_DM_FLAKEY is not set
CONFIG_DM_VERITY=y
# CONFIG_DM_VERITY_VERIFY_ROOTHASH_SIG is not set
CONFIG_DM_VERITY_FEC=y
CONFIG_DM_SWITCH=y
CONFIG_DM_LOG_WRITES=y
CONFIG_DM_INTEGRITY=y
# CONFIG_DM_ZONED is not set
# CONFIG_TARGET_CORE is not set
# CONFIG_FUSION is not set
#
# IEEE 1394 (FireWire) support
#
CONFIG_FIREWIRE=y
CONFIG_FIREWIRE_OHCI=y
CONFIG_FIREWIRE_SBP2=y
# CONFIG_FIREWIRE_NET is not set
CONFIG_FIREWIRE_NOSY=y
# end of IEEE 1394 (FireWire) support
# CONFIG_MACINTOSH_DRIVERS is not set
CONFIG_NETDEVICES=y
CONFIG_MII=y
CONFIG_NET_CORE=y
# CONFIG_BONDING is not set
CONFIG_DUMMY=y
# CONFIG_WIREGUARD is not set
# CONFIG_EQUALIZER is not set
# CONFIG_NET_FC is not set
# CONFIG_NET_TEAM is not set
# CONFIG_MACVLAN is not set
# CONFIG_IPVLAN is not set
# CONFIG_VXLAN is not set
# CONFIG_GENEVE is not set
# CONFIG_BAREUDP is not set
# CONFIG_GTP is not set
CONFIG_MACSEC=y
CONFIG_NETCONSOLE=y
# CONFIG_NETCONSOLE_DYNAMIC is not set
CONFIG_NETPOLL=y
CONFIG_NET_POLL_CONTROLLER=y
CONFIG_NTB_NETDEV=y
# CONFIG_TUN is not set
# CONFIG_TUN_VNET_CROSS_LE is not set
CONFIG_VETH=y
CONFIG_VIRTIO_NET=y
CONFIG_NLMON=y
CONFIG_VSOCKMON=y
CONFIG_ARCNET=y
# CONFIG_ARCNET_1201 is not set
CONFIG_ARCNET_1051=y
CONFIG_ARCNET_RAW=y
CONFIG_ARCNET_CAP=y
CONFIG_ARCNET_COM90xx=y
# CONFIG_ARCNET_COM90xxIO is not set
# CONFIG_ARCNET_RIM_I is not set
CONFIG_ARCNET_COM20020=y
CONFIG_ARCNET_COM20020_PCI=y
CONFIG_ATM_DRIVERS=y
# CONFIG_ATM_DUMMY is not set
# CONFIG_ATM_TCP is not set
# CONFIG_ATM_LANAI is not set
CONFIG_ATM_ENI=y
# CONFIG_ATM_ENI_DEBUG is not set
# CONFIG_ATM_ENI_TUNE_BURST is not set
# CONFIG_ATM_NICSTAR is not set
CONFIG_ATM_IDT77252=y
# CONFIG_ATM_IDT77252_DEBUG is not set
CONFIG_ATM_IDT77252_RCV_ALL=y
CONFIG_ATM_IDT77252_USE_SUNI=y
# CONFIG_ATM_IA is not set
CONFIG_ATM_FORE200E=y
# CONFIG_ATM_FORE200E_USE_TASKLET is not set
CONFIG_ATM_FORE200E_TX_RETRY=16
CONFIG_ATM_FORE200E_DEBUG=0
CONFIG_ATM_HE=y
CONFIG_ATM_HE_USE_SUNI=y
CONFIG_ATM_SOLOS=y
CONFIG_ETHERNET=y
CONFIG_MDIO=y
CONFIG_NET_VENDOR_3COM=y
# CONFIG_EL3 is not set
# CONFIG_VORTEX is not set
CONFIG_TYPHOON=y
CONFIG_NET_VENDOR_ADAPTEC=y
CONFIG_ADAPTEC_STARFIRE=y
# CONFIG_NET_VENDOR_AGERE is not set
CONFIG_NET_VENDOR_ALACRITECH=y
CONFIG_SLICOSS=y
# CONFIG_NET_VENDOR_ALTEON is not set
CONFIG_ALTERA_TSE=y
CONFIG_NET_VENDOR_AMAZON=y
CONFIG_ENA_ETHERNET=y
# CONFIG_NET_VENDOR_AMD is not set
# CONFIG_NET_VENDOR_AQUANTIA is not set
# CONFIG_NET_VENDOR_ARC is not set
# CONFIG_NET_VENDOR_ASIX is not set
CONFIG_NET_VENDOR_ATHEROS=y
CONFIG_ATL2=y
# CONFIG_ATL1 is not set
CONFIG_ATL1E=y
CONFIG_ATL1C=y
CONFIG_ALX=y
CONFIG_CX_ECAT=y
CONFIG_NET_VENDOR_BROADCOM=y
CONFIG_B44=y
CONFIG_B44_PCI_AUTOSELECT=y
CONFIG_B44_PCICORE_AUTOSELECT=y
CONFIG_B44_PCI=y
# CONFIG_BCMGENET is not set
CONFIG_BNX2=y
CONFIG_CNIC=y
CONFIG_TIGON3=y
CONFIG_TIGON3_HWMON=y
CONFIG_BNX2X=y
CONFIG_SYSTEMPORT=y
CONFIG_BNXT=y
CONFIG_BNXT_FLOWER_OFFLOAD=y
# CONFIG_BNXT_DCB is not set
CONFIG_BNXT_HWMON=y
# CONFIG_NET_VENDOR_CADENCE is not set
CONFIG_NET_VENDOR_CAVIUM=y
CONFIG_NET_VENDOR_CHELSIO=y
CONFIG_CHELSIO_T1=y
# CONFIG_CHELSIO_T1_1G is not set
# CONFIG_CHELSIO_T3 is not set
# CONFIG_CHELSIO_T4 is not set
CONFIG_CHELSIO_T4VF=y
# CONFIG_NET_VENDOR_CIRRUS is not set
# CONFIG_NET_VENDOR_CISCO is not set
# CONFIG_NET_VENDOR_CORTINA is not set
CONFIG_NET_VENDOR_DAVICOM=y
CONFIG_DNET=y
CONFIG_NET_VENDOR_DEC=y
CONFIG_NET_TULIP=y
CONFIG_DE2104X=y
CONFIG_DE2104X_DSL=0
CONFIG_TULIP=y
CONFIG_TULIP_MWI=y
# CONFIG_TULIP_MMIO is not set
# CONFIG_TULIP_NAPI is not set
CONFIG_WINBOND_840=y
CONFIG_DM9102=y
CONFIG_ULI526X=y
CONFIG_NET_VENDOR_DLINK=y
CONFIG_DL2K=y
CONFIG_SUNDANCE=y
CONFIG_SUNDANCE_MMIO=y
# CONFIG_NET_VENDOR_EMULEX is not set
# CONFIG_NET_VENDOR_ENGLEDER is not set
CONFIG_NET_VENDOR_EZCHIP=y
CONFIG_NET_VENDOR_FUNGIBLE=y
# CONFIG_FUN_ETH is not set
CONFIG_NET_VENDOR_GOOGLE=y
CONFIG_GVE=y
# CONFIG_NET_VENDOR_HUAWEI is not set
CONFIG_NET_VENDOR_I825XX=y
CONFIG_NET_VENDOR_INTEL=y
# CONFIG_E100 is not set
CONFIG_E1000=y
# CONFIG_E1000E is not set
# CONFIG_IGB is not set
# CONFIG_IGBVF is not set
# CONFIG_IXGB is not set
# CONFIG_IXGBE is not set
# CONFIG_IXGBEVF is not set
# CONFIG_I40E is not set
# CONFIG_I40EVF is not set
# CONFIG_ICE is not set
# CONFIG_FM10K is not set
# CONFIG_IGC is not set
CONFIG_JME=y
# CONFIG_NET_VENDOR_LITEX is not set
# CONFIG_NET_VENDOR_MARVELL is not set
# CONFIG_NET_VENDOR_MELLANOX is not set
CONFIG_NET_VENDOR_MICREL=y
CONFIG_KS8851_MLL=y
CONFIG_KSZ884X_PCI=y
# CONFIG_NET_VENDOR_MICROCHIP is not set
# CONFIG_NET_VENDOR_MICROSEMI is not set
CONFIG_NET_VENDOR_MICROSOFT=y
CONFIG_NET_VENDOR_MYRI=y
# CONFIG_MYRI10GE is not set
CONFIG_FEALNX=y
CONFIG_NET_VENDOR_NI=y
CONFIG_NI_XGE_MANAGEMENT_ENET=y
CONFIG_NET_VENDOR_NATSEMI=y
CONFIG_NATSEMI=y
CONFIG_NS83820=y
# CONFIG_NET_VENDOR_NETERION is not set
CONFIG_NET_VENDOR_NETRONOME=y
# CONFIG_NFP is not set
CONFIG_NET_VENDOR_8390=y
# CONFIG_NE2K_PCI is not set
CONFIG_NET_VENDOR_NVIDIA=y
# CONFIG_FORCEDETH is not set
CONFIG_NET_VENDOR_OKI=y
# CONFIG_PCH_GBE is not set
CONFIG_ETHOC=y
CONFIG_NET_VENDOR_PACKET_ENGINES=y
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
# CONFIG_NET_VENDOR_PENSANDO is not set
# CONFIG_NET_VENDOR_QLOGIC is not set
CONFIG_NET_VENDOR_BROCADE=y
# CONFIG_BNA is not set
# CONFIG_NET_VENDOR_QUALCOMM is not set
# CONFIG_NET_VENDOR_RDC is not set
CONFIG_NET_VENDOR_REALTEK=y
CONFIG_ATP=y
CONFIG_8139CP=y
CONFIG_8139TOO=y
# CONFIG_8139TOO_PIO is not set
CONFIG_8139TOO_TUNE_TWISTER=y
# CONFIG_8139TOO_8129 is not set
# CONFIG_8139_OLD_RX_RESET is not set
CONFIG_R8169=y
CONFIG_NET_VENDOR_RENESAS=y
# CONFIG_NET_VENDOR_ROCKER is not set
# CONFIG_NET_VENDOR_SAMSUNG is not set
# CONFIG_NET_VENDOR_SEEQ is not set
CONFIG_NET_VENDOR_SILAN=y
CONFIG_SC92031=y
# CONFIG_NET_VENDOR_SIS is not set
# CONFIG_NET_VENDOR_SOLARFLARE is not set
# CONFIG_NET_VENDOR_SMSC is not set
CONFIG_NET_VENDOR_SOCIONEXT=y
# CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_NET_VENDOR_SUN is not set
CONFIG_NET_VENDOR_SYNOPSYS=y
# CONFIG_DWC_XLGMAC is not set
# CONFIG_NET_VENDOR_TEHUTI is not set
# CONFIG_NET_VENDOR_TI is not set
CONFIG_NET_VENDOR_VERTEXCOM=y
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
# CONFIG_NET_VENDOR_XILINX is not set
CONFIG_FDDI=y
CONFIG_DEFXX=y
# CONFIG_SKFP is not set
# CONFIG_HIPPI is not set
# CONFIG_NET_SB1000 is not set
CONFIG_PHYLIB=y
CONFIG_SWPHY=y
CONFIG_LED_TRIGGER_PHY=y
CONFIG_FIXED_PHY=y
#
# MII PHY device drivers
#
# CONFIG_AMD_PHY is not set
CONFIG_ADIN_PHY=y
# CONFIG_ADIN1100_PHY is not set
CONFIG_AQUANTIA_PHY=y
CONFIG_AX88796B_PHY=y
# CONFIG_BROADCOM_PHY is not set
CONFIG_BCM54140_PHY=y
CONFIG_BCM7XXX_PHY=y
CONFIG_BCM84881_PHY=y
# CONFIG_BCM87XX_PHY is not set
CONFIG_BCM_NET_PHYLIB=y
CONFIG_CICADA_PHY=y
# CONFIG_CORTINA_PHY is not set
CONFIG_DAVICOM_PHY=y
# CONFIG_ICPLUS_PHY is not set
# CONFIG_LXT_PHY is not set
# CONFIG_INTEL_XWAY_PHY is not set
CONFIG_LSI_ET1011C_PHY=y
# CONFIG_MARVELL_PHY is not set
# CONFIG_MARVELL_10G_PHY is not set
CONFIG_MARVELL_88X2222_PHY=y
CONFIG_MAXLINEAR_GPHY=y
CONFIG_MEDIATEK_GE_PHY=y
CONFIG_MICREL_PHY=y
CONFIG_MICROCHIP_PHY=y
CONFIG_MICROCHIP_T1_PHY=y
CONFIG_MICROSEMI_PHY=y
CONFIG_MOTORCOMM_PHY=y
# CONFIG_NATIONAL_PHY is not set
CONFIG_NXP_C45_TJA11XX_PHY=y
CONFIG_NXP_TJA11XX_PHY=y
CONFIG_AT803X_PHY=y
# CONFIG_QSEMI_PHY is not set
CONFIG_REALTEK_PHY=y
# CONFIG_RENESAS_PHY is not set
# CONFIG_ROCKCHIP_PHY is not set
CONFIG_SMSC_PHY=y
# CONFIG_STE10XP is not set
CONFIG_TERANETICS_PHY=y
# CONFIG_DP83822_PHY is not set
CONFIG_DP83TC811_PHY=y
CONFIG_DP83848_PHY=y
# CONFIG_DP83867_PHY is not set
CONFIG_DP83869_PHY=y
# CONFIG_DP83TD510_PHY is not set
CONFIG_VITESSE_PHY=y
# CONFIG_XILINX_GMII2RGMII is not set
#
# MCTP Device Drivers
#
CONFIG_MCTP_SERIAL=y
# CONFIG_MCTP_TRANSPORT_I2C is not set
# end of MCTP Device Drivers
CONFIG_MDIO_DEVICE=y
CONFIG_MDIO_BUS=y
CONFIG_FWNODE_MDIO=y
CONFIG_ACPI_MDIO=y
CONFIG_MDIO_DEVRES=y
CONFIG_MDIO_BITBANG=y
CONFIG_MDIO_BCM_UNIMAC=y
CONFIG_MDIO_GPIO=y
# CONFIG_MDIO_MSCC_MIIM is not set
#
# MDIO Multiplexers
#
#
# PCS device drivers
#
# CONFIG_PCS_XPCS is not set
# end of PCS device drivers
CONFIG_PLIP=y
# CONFIG_PPP is not set
CONFIG_SLIP=y
# CONFIG_SLIP_COMPRESSED is not set
CONFIG_SLIP_SMART=y
CONFIG_SLIP_MODE_SLIP6=y
#
# Host-side USB support is needed for USB Network Adapter support
#
# CONFIG_WLAN is not set
CONFIG_WAN=y
# CONFIG_HDLC is not set
# CONFIG_IEEE802154_DRIVERS is not set
#
# Wireless WAN
#
# CONFIG_WWAN is not set
# end of Wireless WAN
# CONFIG_VMXNET3 is not set
# CONFIG_FUJITSU_ES is not set
# CONFIG_USB4_NET is not set
# CONFIG_NETDEVSIM is not set
CONFIG_NET_FAILOVER=y
CONFIG_ISDN=y
CONFIG_MISDN=y
# CONFIG_MISDN_DSP is not set
CONFIG_MISDN_L1OIP=y
#
# mISDN hardware drivers
#
CONFIG_MISDN_HFCPCI=y
CONFIG_MISDN_HFCMULTI=y
CONFIG_MISDN_AVMFRITZ=y
CONFIG_MISDN_SPEEDFAX=y
# CONFIG_MISDN_INFINEON is not set
# CONFIG_MISDN_W6692 is not set
# CONFIG_MISDN_NETJET is not set
CONFIG_MISDN_IPAC=y
CONFIG_MISDN_ISAR=y
#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_LEDS=y
CONFIG_INPUT_FF_MEMLESS=y
CONFIG_INPUT_SPARSEKMAP=y
CONFIG_INPUT_MATRIXKMAP=y
CONFIG_INPUT_VIVALDIFMAP=y
#
# Userland interfaces
#
# CONFIG_INPUT_MOUSEDEV is not set
CONFIG_INPUT_JOYDEV=y
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_EVBUG is not set
#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ADP5588=y
# CONFIG_KEYBOARD_ADP5589 is not set
CONFIG_KEYBOARD_ATKBD=y
CONFIG_KEYBOARD_QT1050=y
CONFIG_KEYBOARD_QT1070=y
CONFIG_KEYBOARD_QT2160=y
# CONFIG_KEYBOARD_DLINK_DIR685 is not set
# CONFIG_KEYBOARD_LKKBD is not set
CONFIG_KEYBOARD_GPIO=y
CONFIG_KEYBOARD_GPIO_POLLED=y
CONFIG_KEYBOARD_TCA6416=y
CONFIG_KEYBOARD_TCA8418=y
# CONFIG_KEYBOARD_MATRIX is not set
# CONFIG_KEYBOARD_LM8323 is not set
CONFIG_KEYBOARD_LM8333=y
# CONFIG_KEYBOARD_MAX7359 is not set
# CONFIG_KEYBOARD_MCS is not set
CONFIG_KEYBOARD_MPR121=y
CONFIG_KEYBOARD_NEWTON=y
CONFIG_KEYBOARD_OPENCORES=y
# CONFIG_KEYBOARD_SAMSUNG is not set
CONFIG_KEYBOARD_STOWAWAY=y
# CONFIG_KEYBOARD_SUNKBD is not set
CONFIG_KEYBOARD_TM2_TOUCHKEY=y
CONFIG_KEYBOARD_XTKBD=y
# CONFIG_KEYBOARD_CROS_EC is not set
CONFIG_KEYBOARD_MTK_PMIC=y
CONFIG_KEYBOARD_CYPRESS_SF=y
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_BYD=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_SYNAPTICS_SMBUS=y
CONFIG_MOUSE_PS2_CYPRESS=y
CONFIG_MOUSE_PS2_LIFEBOOK=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
# CONFIG_MOUSE_PS2_ELANTECH is not set
# CONFIG_MOUSE_PS2_SENTELIC is not set
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
CONFIG_MOUSE_PS2_FOCALTECH=y
CONFIG_MOUSE_PS2_VMMOUSE=y
CONFIG_MOUSE_PS2_SMBUS=y
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_APPLETOUCH is not set
# CONFIG_MOUSE_BCM5974 is not set
# CONFIG_MOUSE_CYAPA is not set
CONFIG_MOUSE_ELAN_I2C=y
CONFIG_MOUSE_ELAN_I2C_I2C=y
CONFIG_MOUSE_ELAN_I2C_SMBUS=y
CONFIG_MOUSE_VSXXXAA=y
CONFIG_MOUSE_GPIO=y
CONFIG_MOUSE_SYNAPTICS_I2C=y
# CONFIG_MOUSE_SYNAPTICS_USB is not set
# CONFIG_INPUT_JOYSTICK is not set
CONFIG_INPUT_TABLET=y
# CONFIG_TABLET_USB_ACECAD is not set
# CONFIG_TABLET_USB_AIPTEK is not set
# CONFIG_TABLET_USB_HANWANG is not set
# CONFIG_TABLET_USB_KBTAB is not set
# CONFIG_TABLET_USB_PEGASUS is not set
# CONFIG_TABLET_SERIAL_WACOM4 is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
CONFIG_INPUT_MISC=y
# CONFIG_INPUT_AD714X is not set
# CONFIG_INPUT_BMA150 is not set
CONFIG_INPUT_E3X0_BUTTON=y
CONFIG_INPUT_PCSPKR=y
# CONFIG_INPUT_MAX77693_HAPTIC is not set
CONFIG_INPUT_MAX8925_ONKEY=y
# CONFIG_INPUT_MMA8450 is not set
CONFIG_INPUT_APANEL=y
# CONFIG_INPUT_GPIO_BEEPER is not set
CONFIG_INPUT_GPIO_DECODER=y
CONFIG_INPUT_GPIO_VIBRA=y
CONFIG_INPUT_WISTRON_BTNS=y
# CONFIG_INPUT_ATLAS_BTNS is not set
# CONFIG_INPUT_ATI_REMOTE2 is not set
# CONFIG_INPUT_KEYSPAN_REMOTE is not set
CONFIG_INPUT_KXTJ9=y
# CONFIG_INPUT_POWERMATE is not set
# CONFIG_INPUT_YEALINK is not set
# CONFIG_INPUT_CM109 is not set
# CONFIG_INPUT_REGULATOR_HAPTIC is not set
CONFIG_INPUT_AXP20X_PEK=y
# CONFIG_INPUT_UINPUT is not set
CONFIG_INPUT_PCF50633_PMU=y
CONFIG_INPUT_PCF8574=y
CONFIG_INPUT_PWM_BEEPER=y
CONFIG_INPUT_PWM_VIBRA=y
CONFIG_INPUT_GPIO_ROTARY_ENCODER=y
# CONFIG_INPUT_DA7280_HAPTICS is not set
# CONFIG_INPUT_DA9063_ONKEY is not set
CONFIG_INPUT_ADXL34X=y
CONFIG_INPUT_ADXL34X_I2C=y
CONFIG_INPUT_IQS269A=y
# CONFIG_INPUT_IQS626A is not set
# CONFIG_INPUT_IQS7222 is not set
# CONFIG_INPUT_CMA3000 is not set
CONFIG_INPUT_IDEAPAD_SLIDEBAR=y
# CONFIG_INPUT_SOC_BUTTON_ARRAY is not set
CONFIG_INPUT_DRV260X_HAPTICS=y
CONFIG_INPUT_DRV2665_HAPTICS=y
CONFIG_INPUT_DRV2667_HAPTICS=y
# CONFIG_INPUT_RAVE_SP_PWRBUTTON is not set
CONFIG_RMI4_CORE=y
# CONFIG_RMI4_I2C is not set
# CONFIG_RMI4_SMB is not set
# CONFIG_RMI4_F03 is not set
CONFIG_RMI4_2D_SENSOR=y
CONFIG_RMI4_F11=y
CONFIG_RMI4_F12=y
# CONFIG_RMI4_F30 is not set
# CONFIG_RMI4_F34 is not set
# CONFIG_RMI4_F3A is not set
# CONFIG_RMI4_F54 is not set
# CONFIG_RMI4_F55 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=y
CONFIG_SERIO_ALTERA_PS2=y
CONFIG_SERIO_PS2MULT=y
CONFIG_SERIO_ARC_PS2=y
CONFIG_SERIO_GPIO_PS2=y
# CONFIG_USERIO is not set
CONFIG_GAMEPORT=y
# CONFIG_GAMEPORT_NS558 is not set
CONFIG_GAMEPORT_L4=y
# CONFIG_GAMEPORT_EMU10K1 is not set
CONFIG_GAMEPORT_FM801=y
# end of Hardware I/O ports
# end of Input device support
#
# 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_LEGACY_PTYS is not set
CONFIG_LDISC_AUTOLOAD=y
#
# Serial drivers
#
CONFIG_SERIAL_EARLYCON=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_DEPRECATED_OPTIONS=y
CONFIG_SERIAL_8250_PNP=y
# CONFIG_SERIAL_8250_16550A_VARIANTS is not set
# CONFIG_SERIAL_8250_FINTEK is not set
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_EXAR=y
# CONFIG_SERIAL_8250_MEN_MCB is not set
CONFIG_SERIAL_8250_NR_UARTS=4
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
# CONFIG_SERIAL_8250_EXTENDED is not set
CONFIG_SERIAL_8250_DWLIB=y
# CONFIG_SERIAL_8250_DW is not set
# CONFIG_SERIAL_8250_RT288X is not set
CONFIG_SERIAL_8250_LPSS=y
CONFIG_SERIAL_8250_MID=y
CONFIG_SERIAL_8250_PERICOM=y
#
# Non-8250 serial port support
#
CONFIG_SERIAL_UARTLITE=y
# CONFIG_SERIAL_UARTLITE_CONSOLE is not set
CONFIG_SERIAL_UARTLITE_NR_UARTS=1
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_SERIAL_JSM=y
# CONFIG_SERIAL_LANTIQ is not set
CONFIG_SERIAL_SCCNXP=y
CONFIG_SERIAL_SCCNXP_CONSOLE=y
# CONFIG_SERIAL_SC16IS7XX is not set
CONFIG_SERIAL_TIMBERDALE=y
CONFIG_SERIAL_ALTERA_JTAGUART=y
# CONFIG_SERIAL_ALTERA_JTAGUART_CONSOLE is not set
CONFIG_SERIAL_ALTERA_UART=y
CONFIG_SERIAL_ALTERA_UART_MAXPORTS=4
CONFIG_SERIAL_ALTERA_UART_BAUDRATE=115200
# CONFIG_SERIAL_ALTERA_UART_CONSOLE is not set
CONFIG_SERIAL_PCH_UART=y
# CONFIG_SERIAL_PCH_UART_CONSOLE is not set
CONFIG_SERIAL_ARC=y
# CONFIG_SERIAL_ARC_CONSOLE is not set
CONFIG_SERIAL_ARC_NR_PORTS=1
CONFIG_SERIAL_RP2=y
CONFIG_SERIAL_RP2_NR_UARTS=32
CONFIG_SERIAL_FSL_LPUART=y
CONFIG_SERIAL_FSL_LPUART_CONSOLE=y
CONFIG_SERIAL_FSL_LINFLEXUART=y
CONFIG_SERIAL_FSL_LINFLEXUART_CONSOLE=y
# CONFIG_SERIAL_MEN_Z135 is not set
# CONFIG_SERIAL_SPRD is not set
# end of Serial drivers
CONFIG_SERIAL_MCTRL_GPIO=y
# CONFIG_SERIAL_NONSTANDARD is not set
CONFIG_N_GSM=y
CONFIG_NOZOMI=y
# CONFIG_NULL_TTY is not set
CONFIG_RPMSG_TTY=y
CONFIG_SERIAL_DEV_BUS=y
CONFIG_SERIAL_DEV_CTRL_TTYPORT=y
CONFIG_PRINTER=y
CONFIG_LP_CONSOLE=y
CONFIG_PPDEV=y
# CONFIG_VIRTIO_CONSOLE is not set
CONFIG_IPMI_HANDLER=y
CONFIG_IPMI_DMI_DECODE=y
CONFIG_IPMI_PLAT_DATA=y
# CONFIG_IPMI_PANIC_EVENT is not set
CONFIG_IPMI_DEVICE_INTERFACE=y
CONFIG_IPMI_SI=y
CONFIG_IPMI_SSIF=y
# CONFIG_IPMI_IPMB is not set
CONFIG_IPMI_WATCHDOG=y
CONFIG_IPMI_POWEROFF=y
CONFIG_IPMB_DEVICE_INTERFACE=y
# CONFIG_HW_RANDOM is not set
CONFIG_APPLICOM=y
CONFIG_SONYPI=y
# CONFIG_MWAVE is not set
# CONFIG_SCx200_GPIO is not set
CONFIG_PC8736x_GPIO=y
CONFIG_NSC_GPIO=y
# CONFIG_DEVMEM is not set
CONFIG_NVRAM=y
CONFIG_DEVPORT=y
# CONFIG_HPET is not set
# CONFIG_HANGCHECK_TIMER is not set
CONFIG_TCG_TPM=y
CONFIG_TCG_TIS_CORE=y
CONFIG_TCG_TIS=y
# CONFIG_TCG_TIS_I2C_CR50 is not set
# CONFIG_TCG_TIS_I2C_ATMEL is not set
CONFIG_TCG_TIS_I2C_INFINEON=y
# CONFIG_TCG_TIS_I2C_NUVOTON is not set
# CONFIG_TCG_NSC is not set
CONFIG_TCG_ATMEL=y
# CONFIG_TCG_INFINEON is not set
CONFIG_TCG_CRB=y
# CONFIG_TCG_VTPM_PROXY is not set
# CONFIG_TCG_TIS_ST33ZP24_I2C is not set
CONFIG_TELCLOCK=y
CONFIG_XILLYBUS_CLASS=y
CONFIG_XILLYBUS=y
# CONFIG_XILLYBUS_PCIE is not set
CONFIG_RANDOM_TRUST_CPU=y
CONFIG_RANDOM_TRUST_BOOTLOADER=y
# end of Character devices
#
# I2C support
#
CONFIG_I2C=y
CONFIG_ACPI_I2C_OPREGION=y
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
# CONFIG_I2C_CHARDEV is not set
CONFIG_I2C_MUX=y
#
# Multiplexer I2C Chip support
#
CONFIG_I2C_MUX_GPIO=y
CONFIG_I2C_MUX_LTC4306=y
CONFIG_I2C_MUX_PCA9541=y
# CONFIG_I2C_MUX_PCA954x is not set
# CONFIG_I2C_MUX_REG is not set
CONFIG_I2C_MUX_MLXCPLD=y
# end of Multiplexer I2C Chip support
CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_SMBUS=y
CONFIG_I2C_ALGOBIT=y
CONFIG_I2C_ALGOPCA=y
#
# I2C Hardware Bus support
#
#
# PC SMBus host controller drivers
#
CONFIG_I2C_CCGX_UCSI=y
CONFIG_I2C_ALI1535=y
CONFIG_I2C_ALI1563=y
# CONFIG_I2C_ALI15X3 is not set
# CONFIG_I2C_AMD756 is not set
# CONFIG_I2C_AMD8111 is not set
# CONFIG_I2C_AMD_MP2 is not set
CONFIG_I2C_I801=y
CONFIG_I2C_ISCH=y
CONFIG_I2C_ISMT=y
# CONFIG_I2C_PIIX4 is not set
# CONFIG_I2C_NFORCE2 is not set
# CONFIG_I2C_NVIDIA_GPU is not set
CONFIG_I2C_SIS5595=y
CONFIG_I2C_SIS630=y
# CONFIG_I2C_SIS96X is not set
# CONFIG_I2C_VIA is not set
CONFIG_I2C_VIAPRO=y
#
# ACPI drivers
#
# CONFIG_I2C_SCMI is not set
#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
CONFIG_I2C_CBUS_GPIO=y
CONFIG_I2C_DESIGNWARE_CORE=y
# CONFIG_I2C_DESIGNWARE_SLAVE is not set
CONFIG_I2C_DESIGNWARE_PLATFORM=y
# CONFIG_I2C_DESIGNWARE_AMDPSP is not set
# CONFIG_I2C_DESIGNWARE_BAYTRAIL is not set
CONFIG_I2C_DESIGNWARE_PCI=y
CONFIG_I2C_EG20T=y
CONFIG_I2C_EMEV2=y
CONFIG_I2C_GPIO=y
# CONFIG_I2C_GPIO_FAULT_INJECTOR is not set
CONFIG_I2C_KEMPLD=y
# CONFIG_I2C_OCORES is not set
CONFIG_I2C_PCA_PLATFORM=y
# CONFIG_I2C_SIMTEC is not set
CONFIG_I2C_XILINX=y
#
# External I2C/SMBus adapter drivers
#
CONFIG_I2C_PARPORT=y
CONFIG_I2C_TAOS_EVM=y
#
# Other I2C/SMBus bus drivers
#
CONFIG_I2C_CROS_EC_TUNNEL=y
CONFIG_SCx200_ACB=y
CONFIG_I2C_VIRTIO=y
# end of I2C Hardware Bus support
# CONFIG_I2C_STUB is not set
CONFIG_I2C_SLAVE=y
CONFIG_I2C_SLAVE_EEPROM=y
CONFIG_I2C_SLAVE_TESTUNIT=y
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# end of I2C support
CONFIG_I3C=y
CONFIG_CDNS_I3C_MASTER=y
CONFIG_DW_I3C_MASTER=y
# CONFIG_SVC_I3C_MASTER is not set
# CONFIG_MIPI_I3C_HCI is not set
# CONFIG_SPI is not set
# CONFIG_SPMI is not set
CONFIG_HSI=y
CONFIG_HSI_BOARDINFO=y
#
# HSI controllers
#
#
# HSI clients
#
# CONFIG_HSI_CHAR is not set
CONFIG_PPS=y
# CONFIG_PPS_DEBUG is not set
# CONFIG_NTP_PPS is not set
#
# PPS clients support
#
CONFIG_PPS_CLIENT_KTIMER=y
CONFIG_PPS_CLIENT_LDISC=y
CONFIG_PPS_CLIENT_PARPORT=y
CONFIG_PPS_CLIENT_GPIO=y
#
# PPS generators support
#
#
# PTP clock support
#
CONFIG_PTP_1588_CLOCK=y
CONFIG_PTP_1588_CLOCK_OPTIONAL=y
#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
CONFIG_PTP_1588_CLOCK_PCH=y
CONFIG_PTP_1588_CLOCK_KVM=y
CONFIG_PTP_1588_CLOCK_IDT82P33=y
CONFIG_PTP_1588_CLOCK_IDTCM=y
# CONFIG_PTP_1588_CLOCK_VMW is not set
# CONFIG_PTP_1588_CLOCK_OCP is not set
# end of PTP clock support
CONFIG_PINCTRL=y
CONFIG_PINMUX=y
CONFIG_PINCONF=y
CONFIG_GENERIC_PINCONF=y
# CONFIG_DEBUG_PINCTRL is not set
# CONFIG_PINCTRL_AMD is not set
# CONFIG_PINCTRL_DA9062 is not set
# CONFIG_PINCTRL_MCP23S08 is not set
CONFIG_PINCTRL_SX150X=y
#
# Intel pinctrl drivers
#
# CONFIG_PINCTRL_BAYTRAIL is not set
# CONFIG_PINCTRL_CHERRYVIEW is not set
# CONFIG_PINCTRL_LYNXPOINT is not set
# CONFIG_PINCTRL_ALDERLAKE is not set
# CONFIG_PINCTRL_BROXTON is not set
# CONFIG_PINCTRL_CANNONLAKE is not set
# CONFIG_PINCTRL_CEDARFORK is not set
# CONFIG_PINCTRL_DENVERTON is not set
# CONFIG_PINCTRL_ELKHARTLAKE is not set
# CONFIG_PINCTRL_EMMITSBURG is not set
# CONFIG_PINCTRL_GEMINILAKE is not set
# CONFIG_PINCTRL_ICELAKE is not set
# CONFIG_PINCTRL_JASPERLAKE is not set
# CONFIG_PINCTRL_LAKEFIELD is not set
# CONFIG_PINCTRL_LEWISBURG is not set
# CONFIG_PINCTRL_SUNRISEPOINT is not set
# CONFIG_PINCTRL_TIGERLAKE is not set
# end of Intel pinctrl drivers
#
# Renesas pinctrl drivers
#
# end of Renesas pinctrl drivers
CONFIG_GPIOLIB=y
CONFIG_GPIOLIB_FASTPATH_LIMIT=512
CONFIG_GPIO_ACPI=y
CONFIG_GPIOLIB_IRQCHIP=y
# CONFIG_DEBUG_GPIO is not set
CONFIG_GPIO_CDEV=y
CONFIG_GPIO_CDEV_V1=y
CONFIG_GPIO_GENERIC=y
#
# Memory mapped GPIO drivers
#
# CONFIG_GPIO_AMDPT is not set
CONFIG_GPIO_DWAPB=y
# CONFIG_GPIO_EXAR is not set
CONFIG_GPIO_GENERIC_PLATFORM=y
# CONFIG_GPIO_ICH is not set
# CONFIG_GPIO_MB86S7X is not set
CONFIG_GPIO_MENZ127=y
# CONFIG_GPIO_SIOX is not set
CONFIG_GPIO_VX855=y
# CONFIG_GPIO_AMD_FCH is not set
# end of Memory mapped GPIO drivers
#
# Port-mapped I/O GPIO drivers
#
# CONFIG_GPIO_F7188X is not set
# CONFIG_GPIO_IT87 is not set
# CONFIG_GPIO_SCH is not set
# CONFIG_GPIO_SCH311X is not set
CONFIG_GPIO_WINBOND=y
# CONFIG_GPIO_WS16C48 is not set
# end of Port-mapped I/O GPIO drivers
#
# I2C GPIO expanders
#
CONFIG_GPIO_ADP5588=y
# CONFIG_GPIO_ADP5588_IRQ is not set
# CONFIG_GPIO_MAX7300 is not set
CONFIG_GPIO_MAX732X=y
# CONFIG_GPIO_MAX732X_IRQ is not set
CONFIG_GPIO_PCA953X=y
CONFIG_GPIO_PCA953X_IRQ=y
CONFIG_GPIO_PCA9570=y
# CONFIG_GPIO_PCF857X is not set
CONFIG_GPIO_TPIC2810=y
# end of I2C GPIO expanders
#
# MFD GPIO expanders
#
# CONFIG_GPIO_ARIZONA is not set
CONFIG_GPIO_BD9571MWV=y
CONFIG_GPIO_CS5535=y
# CONFIG_GPIO_KEMPLD is not set
# CONFIG_GPIO_LP873X is not set
# CONFIG_GPIO_RC5T583 is not set
CONFIG_GPIO_TPS65086=y
# CONFIG_GPIO_TPS6586X is not set
CONFIG_GPIO_TQMX86=y
CONFIG_GPIO_WM8994=y
# end of MFD GPIO expanders
#
# PCI GPIO expanders
#
# CONFIG_GPIO_AMD8111 is not set
# CONFIG_GPIO_BT8XX is not set
CONFIG_GPIO_ML_IOH=y
# CONFIG_GPIO_PCH is not set
CONFIG_GPIO_PCI_IDIO_16=y
# CONFIG_GPIO_PCIE_IDIO_24 is not set
CONFIG_GPIO_RDC321X=y
# end of PCI GPIO expanders
#
# Virtual GPIO drivers
#
CONFIG_GPIO_AGGREGATOR=y
# CONFIG_GPIO_MOCKUP is not set
CONFIG_GPIO_VIRTIO=y
# CONFIG_GPIO_SIM is not set
# end of Virtual GPIO drivers
# CONFIG_W1 is not set
# CONFIG_POWER_RESET is not set
CONFIG_POWER_SUPPLY=y
# CONFIG_POWER_SUPPLY_DEBUG is not set
# CONFIG_POWER_SUPPLY_HWMON is not set
CONFIG_PDA_POWER=y
# CONFIG_IP5XXX_POWER is not set
# CONFIG_MAX8925_POWER is not set
# CONFIG_TEST_POWER is not set
# CONFIG_CHARGER_ADP5061 is not set
# CONFIG_BATTERY_CW2015 is not set
# CONFIG_BATTERY_DS2780 is not set
# CONFIG_BATTERY_DS2781 is not set
CONFIG_BATTERY_DS2782=y
# CONFIG_BATTERY_SAMSUNG_SDI is not set
# CONFIG_BATTERY_SBS is not set
# CONFIG_CHARGER_SBS is not set
CONFIG_MANAGER_SBS=y
# CONFIG_BATTERY_BQ27XXX is not set
# CONFIG_BATTERY_DA9030 is not set
# CONFIG_BATTERY_MAX17040 is not set
CONFIG_BATTERY_MAX17042=y
# CONFIG_CHARGER_PCF50633 is not set
CONFIG_CHARGER_MAX8903=y
CONFIG_CHARGER_LP8727=y
# CONFIG_CHARGER_GPIO is not set
# CONFIG_CHARGER_MANAGER is not set
CONFIG_CHARGER_LT3651=y
CONFIG_CHARGER_LTC4162L=y
# CONFIG_CHARGER_MAX77693 is not set
# CONFIG_CHARGER_MAX77976 is not set
# CONFIG_CHARGER_MT6360 is not set
CONFIG_CHARGER_BQ2415X=y
# CONFIG_CHARGER_BQ24190 is not set
CONFIG_CHARGER_BQ24257=y
CONFIG_CHARGER_BQ24735=y
CONFIG_CHARGER_BQ2515X=y
CONFIG_CHARGER_BQ25890=y
# CONFIG_CHARGER_BQ25980 is not set
CONFIG_CHARGER_BQ256XX=y
CONFIG_CHARGER_SMB347=y
CONFIG_CHARGER_TPS65090=y
CONFIG_BATTERY_GAUGE_LTC2941=y
CONFIG_BATTERY_GOLDFISH=y
CONFIG_BATTERY_RT5033=y
CONFIG_CHARGER_RT9455=y
CONFIG_CHARGER_CROS_PCHG=y
# CONFIG_CHARGER_BD99954 is not set
# CONFIG_BATTERY_UG3105 is not set
CONFIG_HWMON=y
CONFIG_HWMON_VID=y
# CONFIG_HWMON_DEBUG_CHIP is not set
#
# Native drivers
#
CONFIG_SENSORS_ABITUGURU=y
# CONFIG_SENSORS_ABITUGURU3 is not set
# CONFIG_SENSORS_AD7414 is not set
# CONFIG_SENSORS_AD7418 is not set
# CONFIG_SENSORS_ADM1021 is not set
CONFIG_SENSORS_ADM1025=y
CONFIG_SENSORS_ADM1026=y
CONFIG_SENSORS_ADM1029=y
CONFIG_SENSORS_ADM1031=y
CONFIG_SENSORS_ADM1177=y
# CONFIG_SENSORS_ADM9240 is not set
# CONFIG_SENSORS_ADT7410 is not set
CONFIG_SENSORS_ADT7411=y
CONFIG_SENSORS_ADT7462=y
# CONFIG_SENSORS_ADT7470 is not set
CONFIG_SENSORS_ADT7475=y
CONFIG_SENSORS_AHT10=y
CONFIG_SENSORS_AS370=y
CONFIG_SENSORS_ASC7621=y
CONFIG_SENSORS_AXI_FAN_CONTROL=y
CONFIG_SENSORS_K8TEMP=y
# CONFIG_SENSORS_K10TEMP is not set
CONFIG_SENSORS_FAM15H_POWER=y
CONFIG_SENSORS_APPLESMC=y
# CONFIG_SENSORS_ASB100 is not set
CONFIG_SENSORS_ASPEED=y
CONFIG_SENSORS_ATXP1=y
CONFIG_SENSORS_CORSAIR_CPRO=y
CONFIG_SENSORS_CORSAIR_PSU=y
CONFIG_SENSORS_DRIVETEMP=y
CONFIG_SENSORS_DS620=y
# CONFIG_SENSORS_DS1621 is not set
CONFIG_SENSORS_DELL_SMM=y
CONFIG_I8K=y
CONFIG_SENSORS_I5K_AMB=y
CONFIG_SENSORS_F71805F=y
# CONFIG_SENSORS_F71882FG is not set
CONFIG_SENSORS_F75375S=y
# CONFIG_SENSORS_FSCHMD is not set
CONFIG_SENSORS_FTSTEUTATES=y
# CONFIG_SENSORS_GL518SM is not set
CONFIG_SENSORS_GL520SM=y
CONFIG_SENSORS_G760A=y
CONFIG_SENSORS_G762=y
CONFIG_SENSORS_HIH6130=y
CONFIG_SENSORS_IBMAEM=y
# CONFIG_SENSORS_IBMPEX is not set
CONFIG_SENSORS_I5500=y
CONFIG_SENSORS_CORETEMP=y
CONFIG_SENSORS_IT87=y
CONFIG_SENSORS_JC42=y
CONFIG_SENSORS_POWR1220=y
# CONFIG_SENSORS_LINEAGE is not set
# CONFIG_SENSORS_LTC2945 is not set
# CONFIG_SENSORS_LTC2947_I2C is not set
CONFIG_SENSORS_LTC2990=y
CONFIG_SENSORS_LTC2992=y
CONFIG_SENSORS_LTC4151=y
CONFIG_SENSORS_LTC4215=y
# CONFIG_SENSORS_LTC4222 is not set
CONFIG_SENSORS_LTC4245=y
# CONFIG_SENSORS_LTC4260 is not set
# CONFIG_SENSORS_LTC4261 is not set
CONFIG_SENSORS_MAX127=y
CONFIG_SENSORS_MAX16065=y
CONFIG_SENSORS_MAX1619=y
CONFIG_SENSORS_MAX1668=y
CONFIG_SENSORS_MAX197=y
CONFIG_SENSORS_MAX31730=y
CONFIG_SENSORS_MAX6620=y
CONFIG_SENSORS_MAX6621=y
CONFIG_SENSORS_MAX6639=y
# CONFIG_SENSORS_MAX6642 is not set
CONFIG_SENSORS_MAX6650=y
# CONFIG_SENSORS_MAX6697 is not set
CONFIG_SENSORS_MAX31790=y
CONFIG_SENSORS_MCP3021=y
CONFIG_SENSORS_TC654=y
CONFIG_SENSORS_TPS23861=y
CONFIG_SENSORS_MR75203=y
# CONFIG_SENSORS_LM63 is not set
# CONFIG_SENSORS_LM73 is not set
# CONFIG_SENSORS_LM75 is not set
CONFIG_SENSORS_LM77=y
CONFIG_SENSORS_LM78=y
CONFIG_SENSORS_LM80=y
CONFIG_SENSORS_LM83=y
# CONFIG_SENSORS_LM85 is not set
CONFIG_SENSORS_LM87=y
CONFIG_SENSORS_LM90=y
CONFIG_SENSORS_LM92=y
CONFIG_SENSORS_LM93=y
# CONFIG_SENSORS_LM95234 is not set
CONFIG_SENSORS_LM95241=y
CONFIG_SENSORS_LM95245=y
# CONFIG_SENSORS_PC87360 is not set
CONFIG_SENSORS_PC87427=y
# CONFIG_SENSORS_NCT6683 is not set
CONFIG_SENSORS_NCT6775_CORE=y
CONFIG_SENSORS_NCT6775=y
# CONFIG_SENSORS_NCT6775_I2C is not set
CONFIG_SENSORS_NCT7802=y
CONFIG_SENSORS_NCT7904=y
# CONFIG_SENSORS_NPCM7XX is not set
CONFIG_SENSORS_PCF8591=y
CONFIG_PMBUS=y
CONFIG_SENSORS_PMBUS=y
CONFIG_SENSORS_ADM1266=y
CONFIG_SENSORS_ADM1275=y
CONFIG_SENSORS_BEL_PFE=y
CONFIG_SENSORS_BPA_RS600=y
# CONFIG_SENSORS_DELTA_AHE50DC_FAN is not set
CONFIG_SENSORS_FSP_3Y=y
# CONFIG_SENSORS_IBM_CFFPS is not set
# CONFIG_SENSORS_DPS920AB is not set
CONFIG_SENSORS_INSPUR_IPSPS=y
CONFIG_SENSORS_IR35221=y
CONFIG_SENSORS_IR36021=y
CONFIG_SENSORS_IR38064=y
# CONFIG_SENSORS_IR38064_REGULATOR is not set
# CONFIG_SENSORS_IRPS5401 is not set
CONFIG_SENSORS_ISL68137=y
CONFIG_SENSORS_LM25066=y
# CONFIG_SENSORS_LM25066_REGULATOR is not set
CONFIG_SENSORS_LTC2978=y
# CONFIG_SENSORS_LTC2978_REGULATOR is not set
CONFIG_SENSORS_LTC3815=y
# CONFIG_SENSORS_MAX15301 is not set
CONFIG_SENSORS_MAX16064=y
CONFIG_SENSORS_MAX16601=y
# CONFIG_SENSORS_MAX20730 is not set
# CONFIG_SENSORS_MAX20751 is not set
CONFIG_SENSORS_MAX31785=y
CONFIG_SENSORS_MAX34440=y
CONFIG_SENSORS_MAX8688=y
CONFIG_SENSORS_MP2888=y
CONFIG_SENSORS_MP2975=y
# CONFIG_SENSORS_MP5023 is not set
CONFIG_SENSORS_PIM4328=y
# CONFIG_SENSORS_PLI1209BC is not set
CONFIG_SENSORS_PM6764TR=y
CONFIG_SENSORS_PXE1610=y
CONFIG_SENSORS_Q54SJ108A2=y
CONFIG_SENSORS_STPDDC60=y
# CONFIG_SENSORS_TPS40422 is not set
# CONFIG_SENSORS_TPS53679 is not set
CONFIG_SENSORS_UCD9000=y
CONFIG_SENSORS_UCD9200=y
# CONFIG_SENSORS_XDPE152 is not set
CONFIG_SENSORS_XDPE122=y
# CONFIG_SENSORS_XDPE122_REGULATOR is not set
# CONFIG_SENSORS_ZL6100 is not set
CONFIG_SENSORS_SBTSI=y
# CONFIG_SENSORS_SBRMI is not set
CONFIG_SENSORS_SHT15=y
CONFIG_SENSORS_SHT21=y
CONFIG_SENSORS_SHT3x=y
CONFIG_SENSORS_SHT4x=y
CONFIG_SENSORS_SHTC1=y
CONFIG_SENSORS_SIS5595=y
# CONFIG_SENSORS_SY7636A is not set
# CONFIG_SENSORS_DME1737 is not set
# CONFIG_SENSORS_EMC1403 is not set
# CONFIG_SENSORS_EMC2103 is not set
CONFIG_SENSORS_EMC6W201=y
# CONFIG_SENSORS_SMSC47M1 is not set
CONFIG_SENSORS_SMSC47M192=y
CONFIG_SENSORS_SMSC47B397=y
CONFIG_SENSORS_SCH56XX_COMMON=y
CONFIG_SENSORS_SCH5627=y
CONFIG_SENSORS_SCH5636=y
CONFIG_SENSORS_STTS751=y
CONFIG_SENSORS_SMM665=y
CONFIG_SENSORS_ADC128D818=y
# CONFIG_SENSORS_ADS7828 is not set
CONFIG_SENSORS_AMC6821=y
CONFIG_SENSORS_INA209=y
CONFIG_SENSORS_INA2XX=y
# CONFIG_SENSORS_INA238 is not set
CONFIG_SENSORS_INA3221=y
CONFIG_SENSORS_TC74=y
CONFIG_SENSORS_THMC50=y
CONFIG_SENSORS_TMP102=y
# CONFIG_SENSORS_TMP103 is not set
CONFIG_SENSORS_TMP108=y
CONFIG_SENSORS_TMP401=y
CONFIG_SENSORS_TMP421=y
# CONFIG_SENSORS_TMP464 is not set
CONFIG_SENSORS_TMP513=y
# CONFIG_SENSORS_VIA_CPUTEMP is not set
CONFIG_SENSORS_VIA686A=y
# CONFIG_SENSORS_VT1211 is not set
# CONFIG_SENSORS_VT8231 is not set
CONFIG_SENSORS_W83773G=y
# CONFIG_SENSORS_W83781D is not set
CONFIG_SENSORS_W83791D=y
# CONFIG_SENSORS_W83792D is not set
# CONFIG_SENSORS_W83793 is not set
# CONFIG_SENSORS_W83795 is not set
CONFIG_SENSORS_W83L785TS=y
CONFIG_SENSORS_W83L786NG=y
CONFIG_SENSORS_W83627HF=y
# CONFIG_SENSORS_W83627EHF is not set
#
# ACPI drivers
#
# CONFIG_SENSORS_ACPI_POWER is not set
# CONFIG_SENSORS_ATK0110 is not set
# CONFIG_SENSORS_ASUS_EC is not set
CONFIG_THERMAL=y
# CONFIG_THERMAL_NETLINK is not set
# CONFIG_THERMAL_STATISTICS is not set
CONFIG_THERMAL_EMERGENCY_POWEROFF_DELAY_MS=0
CONFIG_THERMAL_HWMON=y
CONFIG_THERMAL_WRITABLE_TRIPS=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_BANG_BANG is not set
CONFIG_THERMAL_GOV_USER_SPACE=y
# CONFIG_DEVFREQ_THERMAL is not set
# CONFIG_THERMAL_EMULATION is not set
#
# Intel thermal drivers
#
# CONFIG_INTEL_POWERCLAMP is not set
CONFIG_X86_THERMAL_VECTOR=y
CONFIG_X86_PKG_TEMP_THERMAL=m
# CONFIG_INTEL_SOC_DTS_THERMAL is not set
#
# ACPI INT340X thermal drivers
#
# end of ACPI INT340X thermal drivers
# CONFIG_INTEL_PCH_THERMAL is not set
# CONFIG_INTEL_TCC_COOLING is not set
# CONFIG_INTEL_MENLOW is not set
# CONFIG_INTEL_HFI_THERMAL is not set
# end of Intel thermal drivers
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_CORE=y
# CONFIG_WATCHDOG_NOWAYOUT is not set
CONFIG_WATCHDOG_HANDLE_BOOT_ENABLED=y
CONFIG_WATCHDOG_OPEN_TIMEOUT=0
CONFIG_WATCHDOG_SYSFS=y
# CONFIG_WATCHDOG_HRTIMER_PRETIMEOUT is not set
#
# Watchdog Pretimeout Governors
#
CONFIG_WATCHDOG_PRETIMEOUT_GOV=y
CONFIG_WATCHDOG_PRETIMEOUT_GOV_SEL=m
CONFIG_WATCHDOG_PRETIMEOUT_GOV_NOOP=y
CONFIG_WATCHDOG_PRETIMEOUT_GOV_PANIC=y
# CONFIG_WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP is not set
CONFIG_WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC=y
#
# Watchdog Device Drivers
#
CONFIG_SOFT_WATCHDOG=y
CONFIG_SOFT_WATCHDOG_PRETIMEOUT=y
CONFIG_DA9062_WATCHDOG=y
# CONFIG_MENZ069_WATCHDOG is not set
# CONFIG_WDAT_WDT is not set
# CONFIG_XILINX_WATCHDOG is not set
# CONFIG_ZIIRAVE_WATCHDOG is not set
# CONFIG_RAVE_SP_WATCHDOG is not set
CONFIG_CADENCE_WATCHDOG=y
# CONFIG_DW_WATCHDOG is not set
# CONFIG_MAX63XX_WATCHDOG is not set
CONFIG_ACQUIRE_WDT=y
# CONFIG_ADVANTECH_WDT is not set
CONFIG_ALIM1535_WDT=y
CONFIG_ALIM7101_WDT=y
CONFIG_EBC_C384_WDT=y
# CONFIG_F71808E_WDT is not set
# CONFIG_SP5100_TCO is not set
CONFIG_SBC_FITPC2_WATCHDOG=y
# CONFIG_EUROTECH_WDT is not set
CONFIG_IB700_WDT=y
# CONFIG_IBMASR is not set
CONFIG_WAFER_WDT=y
# CONFIG_I6300ESB_WDT is not set
# CONFIG_IE6XX_WDT is not set
# CONFIG_ITCO_WDT is not set
# CONFIG_IT8712F_WDT is not set
# CONFIG_IT87_WDT is not set
CONFIG_HP_WATCHDOG=y
# CONFIG_HPWDT_NMI_DECODING is not set
# CONFIG_KEMPLD_WDT is not set
CONFIG_SC1200_WDT=y
CONFIG_SCx200_WDT=y
CONFIG_PC87413_WDT=y
# CONFIG_NV_TCO is not set
CONFIG_60XX_WDT=y
CONFIG_SBC8360_WDT=y
# CONFIG_SBC7240_WDT is not set
# CONFIG_CPU5_WDT is not set
CONFIG_SMSC_SCH311X_WDT=y
# CONFIG_SMSC37B787_WDT is not set
CONFIG_TQMX86_WDT=y
# CONFIG_VIA_WDT is not set
# CONFIG_W83627HF_WDT is not set
# CONFIG_W83877F_WDT is not set
CONFIG_W83977F_WDT=y
CONFIG_MACHZ_WDT=y
CONFIG_SBC_EPX_C3_WATCHDOG=y
CONFIG_INTEL_MEI_WDT=y
# CONFIG_NI903X_WDT is not set
# CONFIG_NIC7018_WDT is not set
CONFIG_MEN_A21_WDT=y
#
# PCI-based Watchdog Cards
#
# CONFIG_PCIPCWATCHDOG is not set
# CONFIG_WDTPCI is not set
CONFIG_SSB_POSSIBLE=y
CONFIG_SSB=y
CONFIG_SSB_SPROM=y
CONFIG_SSB_PCIHOST_POSSIBLE=y
CONFIG_SSB_PCIHOST=y
CONFIG_SSB_SDIOHOST_POSSIBLE=y
CONFIG_SSB_SDIOHOST=y
CONFIG_SSB_DRIVER_PCICORE_POSSIBLE=y
CONFIG_SSB_DRIVER_PCICORE=y
CONFIG_SSB_DRIVER_GPIO=y
CONFIG_BCMA_POSSIBLE=y
# CONFIG_BCMA is not set
#
# Multifunction device drivers
#
CONFIG_MFD_CORE=y
CONFIG_MFD_CS5535=y
CONFIG_MFD_AS3711=y
# CONFIG_PMIC_ADP5520 is not set
CONFIG_MFD_AAT2870_CORE=y
# CONFIG_MFD_BCM590XX is not set
CONFIG_MFD_BD9571MWV=y
CONFIG_MFD_AXP20X=y
CONFIG_MFD_AXP20X_I2C=y
CONFIG_MFD_CROS_EC_DEV=y
# CONFIG_MFD_MADERA is not set
CONFIG_PMIC_DA903X=y
# CONFIG_MFD_DA9052_I2C is not set
# CONFIG_MFD_DA9055 is not set
CONFIG_MFD_DA9062=y
# CONFIG_MFD_DA9063 is not set
# CONFIG_MFD_DA9150 is not set
# CONFIG_MFD_MC13XXX_I2C is not set
# CONFIG_MFD_MP2629 is not set
CONFIG_HTC_PASIC3=y
CONFIG_HTC_I2CPLD=y
CONFIG_MFD_INTEL_QUARK_I2C_GPIO=y
CONFIG_LPC_ICH=y
CONFIG_LPC_SCH=y
# CONFIG_INTEL_SOC_PMIC is not set
# CONFIG_INTEL_SOC_PMIC_CHTWC is not set
# CONFIG_INTEL_SOC_PMIC_CHTDC_TI is not set
CONFIG_MFD_INTEL_LPSS=y
# CONFIG_MFD_INTEL_LPSS_ACPI is not set
CONFIG_MFD_INTEL_LPSS_PCI=y
# CONFIG_MFD_INTEL_PMC_BXT is not set
# CONFIG_MFD_IQS62X is not set
# CONFIG_MFD_JANZ_CMODIO is not set
CONFIG_MFD_KEMPLD=y
# CONFIG_MFD_88PM800 is not set
CONFIG_MFD_88PM805=y
# CONFIG_MFD_88PM860X is not set
# CONFIG_MFD_MAX14577 is not set
CONFIG_MFD_MAX77693=y
# CONFIG_MFD_MAX77843 is not set
# CONFIG_MFD_MAX8907 is not set
CONFIG_MFD_MAX8925=y
# CONFIG_MFD_MAX8997 is not set
# CONFIG_MFD_MAX8998 is not set
CONFIG_MFD_MT6360=y
CONFIG_MFD_MT6397=y
# CONFIG_MFD_MENF21BMC is not set
# CONFIG_MFD_RETU is not set
CONFIG_MFD_PCF50633=y
CONFIG_PCF50633_ADC=y
CONFIG_PCF50633_GPIO=y
CONFIG_MFD_RDC321X=y
CONFIG_MFD_RT4831=y
# CONFIG_MFD_RT5033 is not set
CONFIG_MFD_RC5T583=y
CONFIG_MFD_SI476X_CORE=y
# CONFIG_MFD_SIMPLE_MFD_I2C is not set
CONFIG_MFD_SM501=y
# CONFIG_MFD_SM501_GPIO is not set
CONFIG_MFD_SKY81452=y
CONFIG_MFD_SYSCON=y
# CONFIG_MFD_TI_AM335X_TSCADC is not set
# CONFIG_MFD_LP3943 is not set
CONFIG_MFD_LP8788=y
# CONFIG_MFD_TI_LMU is not set
# CONFIG_MFD_PALMAS is not set
# CONFIG_TPS6105X is not set
# CONFIG_TPS65010 is not set
CONFIG_TPS6507X=y
CONFIG_MFD_TPS65086=y
CONFIG_MFD_TPS65090=y
CONFIG_MFD_TI_LP873X=y
CONFIG_MFD_TPS6586X=y
# CONFIG_MFD_TPS65910 is not set
# CONFIG_MFD_TPS65912_I2C is not set
# CONFIG_TWL4030_CORE is not set
# CONFIG_TWL6040_CORE is not set
# CONFIG_MFD_WL1273_CORE is not set
# CONFIG_MFD_LM3533 is not set
# CONFIG_MFD_TIMBERDALE is not set
CONFIG_MFD_TQMX86=y
CONFIG_MFD_VX855=y
CONFIG_MFD_ARIZONA=y
CONFIG_MFD_ARIZONA_I2C=y
CONFIG_MFD_CS47L24=y
# CONFIG_MFD_WM5102 is not set
# CONFIG_MFD_WM5110 is not set
# CONFIG_MFD_WM8997 is not set
# CONFIG_MFD_WM8998 is not set
# CONFIG_MFD_WM8400 is not set
# CONFIG_MFD_WM831X_I2C is not set
# CONFIG_MFD_WM8350_I2C is not set
CONFIG_MFD_WM8994=y
# CONFIG_MFD_WCD934X is not set
# CONFIG_MFD_ATC260X_I2C is not set
CONFIG_RAVE_SP_CORE=y
# end of Multifunction device drivers
CONFIG_REGULATOR=y
CONFIG_REGULATOR_DEBUG=y
CONFIG_REGULATOR_FIXED_VOLTAGE=y
# CONFIG_REGULATOR_VIRTUAL_CONSUMER is not set
CONFIG_REGULATOR_USERSPACE_CONSUMER=y
CONFIG_REGULATOR_88PG86X=y
CONFIG_REGULATOR_ACT8865=y
CONFIG_REGULATOR_AD5398=y
CONFIG_REGULATOR_AAT2870=y
CONFIG_REGULATOR_AS3711=y
# CONFIG_REGULATOR_AXP20X is not set
# CONFIG_REGULATOR_BD9571MWV is not set
CONFIG_REGULATOR_DA9062=y
CONFIG_REGULATOR_DA9210=y
CONFIG_REGULATOR_DA9211=y
CONFIG_REGULATOR_FAN53555=y
CONFIG_REGULATOR_GPIO=y
# CONFIG_REGULATOR_ISL9305 is not set
# CONFIG_REGULATOR_ISL6271A is not set
CONFIG_REGULATOR_LP3971=y
CONFIG_REGULATOR_LP3972=y
CONFIG_REGULATOR_LP872X=y
CONFIG_REGULATOR_LP8755=y
CONFIG_REGULATOR_LP8788=y
# CONFIG_REGULATOR_LTC3589 is not set
CONFIG_REGULATOR_LTC3676=y
CONFIG_REGULATOR_MAX1586=y
CONFIG_REGULATOR_MAX8649=y
CONFIG_REGULATOR_MAX8660=y
# CONFIG_REGULATOR_MAX8893 is not set
CONFIG_REGULATOR_MAX8925=y
# CONFIG_REGULATOR_MAX8952 is not set
# CONFIG_REGULATOR_MAX20086 is not set
CONFIG_REGULATOR_MAX77693=y
# CONFIG_REGULATOR_MAX77826 is not set
CONFIG_REGULATOR_MP8859=y
# CONFIG_REGULATOR_MT6311 is not set
# CONFIG_REGULATOR_MT6323 is not set
# CONFIG_REGULATOR_MT6358 is not set
CONFIG_REGULATOR_MT6359=y
CONFIG_REGULATOR_MT6360=y
# CONFIG_REGULATOR_MT6397 is not set
# CONFIG_REGULATOR_PCA9450 is not set
CONFIG_REGULATOR_PCF50633=y
# CONFIG_REGULATOR_PV88060 is not set
# CONFIG_REGULATOR_PV88080 is not set
CONFIG_REGULATOR_PV88090=y
# CONFIG_REGULATOR_PWM is not set
CONFIG_REGULATOR_RC5T583=y
CONFIG_REGULATOR_RT4801=y
CONFIG_REGULATOR_RT4831=y
# CONFIG_REGULATOR_RT5190A is not set
# CONFIG_REGULATOR_RT5759 is not set
CONFIG_REGULATOR_RT6160=y
CONFIG_REGULATOR_RT6245=y
CONFIG_REGULATOR_RTQ2134=y
CONFIG_REGULATOR_RTMV20=y
CONFIG_REGULATOR_RTQ6752=y
# CONFIG_REGULATOR_SKY81452 is not set
CONFIG_REGULATOR_SLG51000=y
# CONFIG_REGULATOR_SY7636A is not set
CONFIG_REGULATOR_TPS51632=y
# CONFIG_REGULATOR_TPS62360 is not set
CONFIG_REGULATOR_TPS65023=y
CONFIG_REGULATOR_TPS6507X=y
CONFIG_REGULATOR_TPS65086=y
CONFIG_REGULATOR_TPS65090=y
CONFIG_REGULATOR_TPS65132=y
CONFIG_REGULATOR_TPS6586X=y
CONFIG_REGULATOR_WM8994=y
# CONFIG_RC_CORE is not set
CONFIG_CEC_CORE=y
CONFIG_CEC_NOTIFIER=y
#
# CEC support
#
# CONFIG_MEDIA_CEC_SUPPORT is not set
# end of CEC support
CONFIG_MEDIA_SUPPORT=y
CONFIG_MEDIA_SUPPORT_FILTER=y
CONFIG_MEDIA_SUBDRV_AUTOSELECT=y
#
# Media device types
#
# CONFIG_MEDIA_CAMERA_SUPPORT is not set
# CONFIG_MEDIA_ANALOG_TV_SUPPORT is not set
CONFIG_MEDIA_DIGITAL_TV_SUPPORT=y
CONFIG_MEDIA_RADIO_SUPPORT=y
CONFIG_MEDIA_SDR_SUPPORT=y
CONFIG_MEDIA_PLATFORM_SUPPORT=y
# CONFIG_MEDIA_TEST_SUPPORT is not set
# end of Media device types
CONFIG_VIDEO_DEV=y
CONFIG_MEDIA_CONTROLLER=y
CONFIG_DVB_CORE=y
#
# Video4Linux options
#
CONFIG_VIDEO_V4L2_I2C=y
# CONFIG_VIDEO_V4L2_SUBDEV_API is not set
# CONFIG_VIDEO_ADV_DEBUG is not set
CONFIG_VIDEO_FIXED_MINOR_RANGES=y
# end of Video4Linux options
#
# Media controller options
#
CONFIG_MEDIA_CONTROLLER_DVB=y
# end of Media controller options
#
# Digital TV options
#
CONFIG_DVB_MMAP=y
CONFIG_DVB_NET=y
CONFIG_DVB_MAX_ADAPTERS=16
# CONFIG_DVB_DYNAMIC_MINORS is not set
CONFIG_DVB_DEMUX_SECTION_LOSS_LOG=y
CONFIG_DVB_ULE_DEBUG=y
# end of Digital TV options
#
# Media drivers
#
#
# Drivers filtered as selected at 'Filter media drivers'
#
#
# Media drivers
#
# CONFIG_MEDIA_PCI_SUPPORT is not set
# CONFIG_RADIO_ADAPTERS is not set
CONFIG_MEDIA_PLATFORM_DRIVERS=y
# CONFIG_V4L_PLATFORM_DRIVERS is not set
# CONFIG_SDR_PLATFORM_DRIVERS is not set
# CONFIG_DVB_PLATFORM_DRIVERS is not set
# CONFIG_V4L_MEM2MEM_DRIVERS is not set
#
# Allegro DVT media platform drivers
#
#
# Amlogic media platform drivers
#
#
# Amphion drivers
#
#
# Aspeed media platform drivers
#
#
# Atmel media platform drivers
#
#
# Cadence media platform drivers
#
# CONFIG_VIDEO_CADENCE_CSI2RX is not set
# CONFIG_VIDEO_CADENCE_CSI2TX is not set
#
# Chips&Media media platform drivers
#
#
# Intel media platform drivers
#
#
# Marvell media platform drivers
#
#
# Mediatek media platform drivers
#
#
# NVidia media platform drivers
#
#
# NXP media platform drivers
#
#
# Qualcomm media platform drivers
#
#
# Renesas media platform drivers
#
#
# Rockchip media platform drivers
#
#
# Samsung media platform drivers
#
#
# STMicroelectronics media platform drivers
#
#
# Sunxi media platform drivers
#
#
# Texas Instruments drivers
#
#
# VIA media platform drivers
#
#
# Xilinx media platform drivers
#
#
# MMC/SDIO DVB adapters
#
# CONFIG_SMS_SDIO_DRV is not set
#
# FireWire (IEEE 1394) Adapters
#
CONFIG_DVB_FIREDTV=y
CONFIG_DVB_FIREDTV_INPUT=y
CONFIG_VIDEOBUF2_CORE=y
CONFIG_VIDEOBUF2_V4L2=y
CONFIG_VIDEOBUF2_MEMOPS=y
CONFIG_VIDEOBUF2_VMALLOC=y
# end of Media drivers
CONFIG_MEDIA_HIDE_ANCILLARY_SUBDRV=y
#
# Media ancillary drivers
#
CONFIG_MEDIA_ATTACH=y
#
# audio, video and radio I2C drivers auto-selected by 'Autoselect ancillary drivers'
#
#
# Video and audio decoders
#
CONFIG_MEDIA_TUNER=y
#
# Tuner drivers auto-selected by 'Autoselect ancillary drivers'
#
CONFIG_MEDIA_TUNER_MC44S803=y
CONFIG_MEDIA_TUNER_MT20XX=y
CONFIG_MEDIA_TUNER_SIMPLE=y
CONFIG_MEDIA_TUNER_TDA18271=y
CONFIG_MEDIA_TUNER_TDA827X=y
CONFIG_MEDIA_TUNER_TDA8290=y
CONFIG_MEDIA_TUNER_TDA9887=y
CONFIG_MEDIA_TUNER_TEA5761=y
CONFIG_MEDIA_TUNER_TEA5767=y
CONFIG_MEDIA_TUNER_XC2028=y
CONFIG_MEDIA_TUNER_XC4000=y
CONFIG_MEDIA_TUNER_XC5000=y
#
# DVB Frontend drivers auto-selected by 'Autoselect ancillary drivers'
#
#
# Multistandard (satellite) frontends
#
#
# Multistandard (cable + terrestrial) frontends
#
#
# DVB-S (satellite) frontends
#
#
# DVB-T (terrestrial) frontends
#
#
# DVB-C (cable) frontends
#
#
# ATSC (North American/Korean Terrestrial/Cable DTV) frontends
#
#
# ISDB-T (terrestrial) frontends
#
#
# ISDB-S (satellite) & ISDB-T (terrestrial) frontends
#
#
# Digital terrestrial only tuners/PLL
#
#
# SEC control devices for DVB-S
#
#
# Common Interface (EN50221) controller drivers
#
# end of Media ancillary drivers
#
# Graphics support
#
# CONFIG_AGP is not set
CONFIG_INTEL_GTT=y
# CONFIG_VGA_SWITCHEROO is not set
CONFIG_DRM=y
CONFIG_DRM_MIPI_DSI=y
CONFIG_DRM_DEBUG_MM=y
# CONFIG_DRM_DEBUG_SELFTEST is not set
CONFIG_DRM_KMS_HELPER=y
# CONFIG_DRM_FBDEV_EMULATION is not set
CONFIG_DRM_LOAD_EDID_FIRMWARE=y
CONFIG_DRM_DISPLAY_HELPER=y
CONFIG_DRM_DISPLAY_DP_HELPER=y
CONFIG_DRM_DISPLAY_HDCP_HELPER=y
CONFIG_DRM_DISPLAY_HDMI_HELPER=y
CONFIG_DRM_DP_AUX_CHARDEV=y
CONFIG_DRM_DP_CEC=y
CONFIG_DRM_TTM=y
CONFIG_DRM_BUDDY=y
CONFIG_DRM_VRAM_HELPER=y
CONFIG_DRM_TTM_HELPER=y
CONFIG_DRM_GEM_SHMEM_HELPER=y
#
# I2C encoder or helper chips
#
CONFIG_DRM_I2C_CH7006=y
# CONFIG_DRM_I2C_SIL164 is not set
CONFIG_DRM_I2C_NXP_TDA998X=y
CONFIG_DRM_I2C_NXP_TDA9950=y
# end of I2C encoder or helper chips
#
# ARM devices
#
# end of ARM devices
# CONFIG_DRM_RADEON is not set
# CONFIG_DRM_AMDGPU is not set
# CONFIG_DRM_NOUVEAU is not set
CONFIG_DRM_I915=y
CONFIG_DRM_I915_FORCE_PROBE=""
# CONFIG_DRM_I915_CAPTURE_ERROR is not set
CONFIG_DRM_I915_USERPTR=y
# CONFIG_DRM_I915_PXP is not set
CONFIG_DRM_I915_REQUEST_TIMEOUT=20000
CONFIG_DRM_I915_FENCE_TIMEOUT=10000
CONFIG_DRM_I915_USERFAULT_AUTOSUSPEND=250
CONFIG_DRM_I915_HEARTBEAT_INTERVAL=2500
CONFIG_DRM_I915_PREEMPT_TIMEOUT=640
CONFIG_DRM_I915_MAX_REQUEST_BUSYWAIT=8000
CONFIG_DRM_I915_STOP_TIMEOUT=100
CONFIG_DRM_I915_TIMESLICE_DURATION=1
CONFIG_DRM_VGEM=y
# CONFIG_DRM_VKMS is not set
CONFIG_DRM_VMWGFX=y
# CONFIG_DRM_VMWGFX_MKSSTATS is not set
CONFIG_DRM_GMA500=y
CONFIG_DRM_AST=y
# CONFIG_DRM_MGAG200 is not set
CONFIG_DRM_QXL=y
CONFIG_DRM_VIRTIO_GPU=y
CONFIG_DRM_PANEL=y
#
# Display Panels
#
CONFIG_DRM_PANEL_RASPBERRYPI_TOUCHSCREEN=y
# end of Display Panels
CONFIG_DRM_BRIDGE=y
CONFIG_DRM_PANEL_BRIDGE=y
#
# Display Interface Bridges
#
# CONFIG_DRM_ANALOGIX_ANX78XX is not set
# end of Display Interface Bridges
# CONFIG_DRM_ETNAVIV is not set
CONFIG_DRM_BOCHS=y
# CONFIG_DRM_CIRRUS_QEMU is not set
CONFIG_DRM_SIMPLEDRM=y
CONFIG_DRM_VBOXVIDEO=y
# CONFIG_DRM_SSD130X is not set
CONFIG_DRM_LEGACY=y
CONFIG_DRM_TDFX=y
# CONFIG_DRM_R128 is not set
CONFIG_DRM_MGA=y
CONFIG_DRM_VIA=y
CONFIG_DRM_SAVAGE=y
CONFIG_DRM_PANEL_ORIENTATION_QUIRKS=y
CONFIG_DRM_NOMODESET=y
#
# Frame buffer Devices
#
CONFIG_FB_CMDLINE=y
CONFIG_FB_NOTIFY=y
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
CONFIG_FB_DDC=y
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
CONFIG_FB_SYS_FILLRECT=y
CONFIG_FB_SYS_COPYAREA=y
CONFIG_FB_SYS_IMAGEBLIT=y
CONFIG_FB_FOREIGN_ENDIAN=y
CONFIG_FB_BOTH_ENDIAN=y
# CONFIG_FB_BIG_ENDIAN is not set
# CONFIG_FB_LITTLE_ENDIAN is not set
CONFIG_FB_SYS_FOPS=y
CONFIG_FB_DEFERRED_IO=y
CONFIG_FB_HECUBA=y
CONFIG_FB_SVGALIB=y
CONFIG_FB_BACKLIGHT=y
CONFIG_FB_MODE_HELPERS=y
CONFIG_FB_TILEBLITTING=y
#
# Frame buffer hardware drivers
#
CONFIG_FB_CIRRUS=y
CONFIG_FB_PM2=y
# CONFIG_FB_PM2_FIFO_DISCONNECT is not set
CONFIG_FB_CYBER2000=y
# CONFIG_FB_CYBER2000_DDC is not set
# CONFIG_FB_ARC is not set
# CONFIG_FB_ASILIANT is not set
CONFIG_FB_IMSTT=y
# CONFIG_FB_VGA16 is not set
CONFIG_FB_UVESA=y
CONFIG_FB_VESA=y
CONFIG_FB_N411=y
CONFIG_FB_HGA=y
# CONFIG_FB_OPENCORES is not set
CONFIG_FB_S1D13XXX=y
CONFIG_FB_NVIDIA=y
CONFIG_FB_NVIDIA_I2C=y
# CONFIG_FB_NVIDIA_DEBUG is not set
CONFIG_FB_NVIDIA_BACKLIGHT=y
CONFIG_FB_RIVA=y
CONFIG_FB_RIVA_I2C=y
# CONFIG_FB_RIVA_DEBUG is not set
CONFIG_FB_RIVA_BACKLIGHT=y
CONFIG_FB_I740=y
# CONFIG_FB_LE80578 is not set
CONFIG_FB_MATROX=y
CONFIG_FB_MATROX_MILLENIUM=y
CONFIG_FB_MATROX_MYSTIQUE=y
# CONFIG_FB_MATROX_G is not set
CONFIG_FB_MATROX_I2C=y
# CONFIG_FB_RADEON is not set
CONFIG_FB_ATY128=y
CONFIG_FB_ATY128_BACKLIGHT=y
CONFIG_FB_ATY=y
# CONFIG_FB_ATY_CT is not set
CONFIG_FB_ATY_GX=y
CONFIG_FB_ATY_BACKLIGHT=y
CONFIG_FB_S3=y
# CONFIG_FB_S3_DDC is not set
CONFIG_FB_SAVAGE=y
CONFIG_FB_SAVAGE_I2C=y
CONFIG_FB_SAVAGE_ACCEL=y
CONFIG_FB_SIS=y
CONFIG_FB_SIS_300=y
# CONFIG_FB_SIS_315 is not set
CONFIG_FB_VIA=y
CONFIG_FB_VIA_DIRECT_PROCFS=y
CONFIG_FB_VIA_X_COMPATIBILITY=y
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
CONFIG_FB_3DFX=y
# CONFIG_FB_3DFX_ACCEL is not set
# CONFIG_FB_3DFX_I2C is not set
# CONFIG_FB_VOODOO1 is not set
CONFIG_FB_VT8623=y
CONFIG_FB_TRIDENT=y
# CONFIG_FB_ARK is not set
CONFIG_FB_PM3=y
CONFIG_FB_CARMINE=y
# CONFIG_FB_CARMINE_DRAM_EVAL is not set
CONFIG_CARMINE_DRAM_CUSTOM=y
CONFIG_FB_GEODE=y
CONFIG_FB_GEODE_LX=y
CONFIG_FB_GEODE_GX=y
# CONFIG_FB_GEODE_GX1 is not set
CONFIG_FB_SM501=y
CONFIG_FB_IBM_GXT4500=y
# CONFIG_FB_VIRTUAL is not set
CONFIG_FB_METRONOME=y
# CONFIG_FB_MB862XX is not set
CONFIG_FB_SSD1307=y
# CONFIG_FB_SM712 is not set
# end of Frame buffer Devices
#
# Backlight & LCD device support
#
CONFIG_LCD_CLASS_DEVICE=y
CONFIG_LCD_PLATFORM=y
CONFIG_BACKLIGHT_CLASS_DEVICE=y
CONFIG_BACKLIGHT_KTD253=y
CONFIG_BACKLIGHT_PWM=y
# CONFIG_BACKLIGHT_DA903X is not set
# CONFIG_BACKLIGHT_MAX8925 is not set
# CONFIG_BACKLIGHT_APPLE is not set
CONFIG_BACKLIGHT_QCOM_WLED=y
CONFIG_BACKLIGHT_RT4831=y
CONFIG_BACKLIGHT_SAHARA=y
CONFIG_BACKLIGHT_ADP8860=y
CONFIG_BACKLIGHT_ADP8870=y
# CONFIG_BACKLIGHT_PCF50633 is not set
# CONFIG_BACKLIGHT_AAT2870 is not set
CONFIG_BACKLIGHT_LM3630A=y
# CONFIG_BACKLIGHT_LM3639 is not set
# CONFIG_BACKLIGHT_LP855X is not set
CONFIG_BACKLIGHT_LP8788=y
# CONFIG_BACKLIGHT_SKY81452 is not set
CONFIG_BACKLIGHT_AS3711=y
CONFIG_BACKLIGHT_GPIO=y
CONFIG_BACKLIGHT_LV5207LP=y
# CONFIG_BACKLIGHT_BD6107 is not set
# CONFIG_BACKLIGHT_ARCXCNN is not set
# CONFIG_BACKLIGHT_RAVE_SP is not set
# end of Backlight & LCD device support
CONFIG_VGASTATE=y
CONFIG_HDMI=y
#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=80
CONFIG_DUMMY_CONSOLE_ROWS=25
CONFIG_FRAMEBUFFER_CONSOLE=y
# CONFIG_FRAMEBUFFER_CONSOLE_LEGACY_ACCELERATION is not set
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
CONFIG_FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER=y
# end of Console display driver support
CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_MONO is not set
CONFIG_LOGO_LINUX_VGA16=y
# CONFIG_LOGO_LINUX_CLUT224 is not set
# end of Graphics support
CONFIG_SOUND=y
# CONFIG_SND is not set
#
# HID support
#
CONFIG_HID=y
# CONFIG_HID_BATTERY_STRENGTH is not set
CONFIG_HIDRAW=y
CONFIG_UHID=y
CONFIG_HID_GENERIC=y
#
# Special HID drivers
#
CONFIG_HID_A4TECH=y
# CONFIG_HID_ACRUX is not set
CONFIG_HID_APPLE=y
CONFIG_HID_AUREAL=y
CONFIG_HID_BELKIN=y
# CONFIG_HID_CHERRY is not set
CONFIG_HID_COUGAR=y
CONFIG_HID_MACALLY=y
# CONFIG_HID_CMEDIA is not set
# CONFIG_HID_CYPRESS is not set
CONFIG_HID_DRAGONRISE=y
# CONFIG_DRAGONRISE_FF is not set
CONFIG_HID_EMS_FF=y
# CONFIG_HID_ELECOM is not set
CONFIG_HID_EZKEY=y
CONFIG_HID_GEMBIRD=y
# CONFIG_HID_GFRM is not set
CONFIG_HID_GLORIOUS=y
CONFIG_HID_VIVALDI_COMMON=y
CONFIG_HID_VIVALDI=y
# CONFIG_HID_KEYTOUCH is not set
CONFIG_HID_KYE=y
CONFIG_HID_WALTOP=y
# CONFIG_HID_VIEWSONIC is not set
# CONFIG_HID_XIAOMI is not set
# CONFIG_HID_GYRATION is not set
CONFIG_HID_ICADE=y
CONFIG_HID_ITE=y
# CONFIG_HID_JABRA is not set
CONFIG_HID_TWINHAN=y
CONFIG_HID_KENSINGTON=y
CONFIG_HID_LCPOWER=y
CONFIG_HID_LED=y
CONFIG_HID_LENOVO=y
CONFIG_HID_MAGICMOUSE=y
# CONFIG_HID_MALTRON is not set
CONFIG_HID_MAYFLASH=y
CONFIG_HID_REDRAGON=y
CONFIG_HID_MICROSOFT=y
# CONFIG_HID_MONTEREY is not set
CONFIG_HID_MULTITOUCH=y
# CONFIG_HID_NINTENDO is not set
CONFIG_HID_NTI=y
CONFIG_HID_ORTEK=y
# CONFIG_HID_PANTHERLORD is not set
CONFIG_HID_PETALYNX=y
CONFIG_HID_PICOLCD=y
CONFIG_HID_PICOLCD_FB=y
CONFIG_HID_PICOLCD_BACKLIGHT=y
CONFIG_HID_PICOLCD_LCD=y
CONFIG_HID_PICOLCD_LEDS=y
# CONFIG_HID_PLANTRONICS is not set
CONFIG_HID_PLAYSTATION=y
CONFIG_PLAYSTATION_FF=y
# CONFIG_HID_RAZER is not set
CONFIG_HID_PRIMAX=y
CONFIG_HID_SAITEK=y
CONFIG_HID_SEMITEK=y
CONFIG_HID_SPEEDLINK=y
# CONFIG_HID_STEAM is not set
CONFIG_HID_STEELSERIES=y
CONFIG_HID_SUNPLUS=y
# CONFIG_HID_RMI is not set
CONFIG_HID_GREENASIA=y
# CONFIG_GREENASIA_FF is not set
CONFIG_HID_SMARTJOYPLUS=y
# CONFIG_SMARTJOYPLUS_FF is not set
CONFIG_HID_TIVO=y
# CONFIG_HID_TOPSEED is not set
# CONFIG_HID_THINGM is not set
# CONFIG_HID_UDRAW_PS3 is not set
# CONFIG_HID_WIIMOTE is not set
CONFIG_HID_XINMO=y
CONFIG_HID_ZEROPLUS=y
# CONFIG_ZEROPLUS_FF is not set
CONFIG_HID_ZYDACRON=y
CONFIG_HID_SENSOR_HUB=y
CONFIG_HID_SENSOR_CUSTOM_SENSOR=y
CONFIG_HID_ALPS=y
# end of Special HID drivers
#
# I2C HID support
#
# CONFIG_I2C_HID_ACPI is not set
# end of I2C HID support
# end of HID support
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_SUPPORT=y
# CONFIG_USB_ULPI_BUS is not set
# CONFIG_USB_CONN_GPIO is not set
CONFIG_USB_ARCH_HAS_HCD=y
# CONFIG_USB is not set
CONFIG_USB_PCI=y
#
# USB port drivers
#
#
# USB Physical Layer drivers
#
# CONFIG_NOP_USB_XCEIV is not set
# CONFIG_USB_GPIO_VBUS is not set
# end of USB Physical Layer drivers
# CONFIG_USB_GADGET is not set
# CONFIG_TYPEC is not set
# CONFIG_USB_ROLE_SWITCH is not set
CONFIG_MMC=y
CONFIG_MMC_BLOCK=y
CONFIG_MMC_BLOCK_MINORS=8
CONFIG_SDIO_UART=y
# CONFIG_MMC_TEST is not set
CONFIG_MMC_CRYPTO=y
#
# MMC/SD/SDIO Host Controller Drivers
#
CONFIG_MMC_DEBUG=y
CONFIG_MMC_SDHCI=y
CONFIG_MMC_SDHCI_IO_ACCESSORS=y
CONFIG_MMC_SDHCI_PCI=y
CONFIG_MMC_RICOH_MMC=y
# CONFIG_MMC_SDHCI_ACPI is not set
CONFIG_MMC_SDHCI_PLTFM=y
# CONFIG_MMC_SDHCI_F_SDH30 is not set
CONFIG_MMC_WBSD=y
CONFIG_MMC_ALCOR=y
CONFIG_MMC_TIFM_SD=y
CONFIG_MMC_CB710=y
CONFIG_MMC_VIA_SDMMC=y
CONFIG_MMC_USDHI6ROL0=y
CONFIG_MMC_CQHCI=y
CONFIG_MMC_HSQ=y
CONFIG_MMC_TOSHIBA_PCI=y
CONFIG_MMC_MTK=y
CONFIG_MMC_SDHCI_XENON=y
# CONFIG_SCSI_UFSHCD is not set
CONFIG_MEMSTICK=y
# CONFIG_MEMSTICK_DEBUG is not set
#
# MemoryStick drivers
#
# CONFIG_MEMSTICK_UNSAFE_RESUME is not set
CONFIG_MSPRO_BLOCK=y
CONFIG_MS_BLOCK=y
#
# MemoryStick Host Controller Drivers
#
CONFIG_MEMSTICK_TIFM_MS=y
CONFIG_MEMSTICK_JMICRON_38X=y
CONFIG_MEMSTICK_R592=y
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
CONFIG_LEDS_CLASS_FLASH=y
CONFIG_LEDS_CLASS_MULTICOLOR=y
# CONFIG_LEDS_BRIGHTNESS_HW_CHANGED is not set
#
# LED drivers
#
# CONFIG_LEDS_APU is not set
CONFIG_LEDS_LM3530=y
CONFIG_LEDS_LM3532=y
CONFIG_LEDS_LM3642=y
CONFIG_LEDS_MT6323=y
CONFIG_LEDS_PCA9532=y
# CONFIG_LEDS_PCA9532_GPIO is not set
# CONFIG_LEDS_GPIO is not set
CONFIG_LEDS_LP3944=y
# CONFIG_LEDS_LP3952 is not set
CONFIG_LEDS_LP50XX=y
# CONFIG_LEDS_LP8788 is not set
CONFIG_LEDS_CLEVO_MAIL=y
CONFIG_LEDS_PCA955X=y
CONFIG_LEDS_PCA955X_GPIO=y
CONFIG_LEDS_PCA963X=y
# CONFIG_LEDS_DA903X is not set
# CONFIG_LEDS_PWM is not set
# CONFIG_LEDS_REGULATOR is not set
CONFIG_LEDS_BD2802=y
CONFIG_LEDS_INTEL_SS4200=y
CONFIG_LEDS_LT3593=y
CONFIG_LEDS_TCA6507=y
# CONFIG_LEDS_TLC591XX is not set
CONFIG_LEDS_LM355x=y
CONFIG_LEDS_OT200=y
#
# LED driver for blink(1) USB RGB LED is under Special HID drivers (HID_THINGM)
#
# CONFIG_LEDS_BLINKM is not set
CONFIG_LEDS_MLXCPLD=y
CONFIG_LEDS_MLXREG=y
CONFIG_LEDS_USER=y
# CONFIG_LEDS_NIC78BX is not set
# CONFIG_LEDS_TI_LMU_COMMON is not set
#
# Flash and Torch LED drivers
#
CONFIG_LEDS_AS3645A=y
CONFIG_LEDS_LM3601X=y
CONFIG_LEDS_RT8515=y
CONFIG_LEDS_SGM3140=y
#
# RGB LED drivers
#
# CONFIG_LEDS_PWM_MULTICOLOR is not set
#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_TIMER=y
# CONFIG_LEDS_TRIGGER_ONESHOT is not set
CONFIG_LEDS_TRIGGER_DISK=y
# CONFIG_LEDS_TRIGGER_MTD is not set
CONFIG_LEDS_TRIGGER_HEARTBEAT=y
# CONFIG_LEDS_TRIGGER_BACKLIGHT is not set
# CONFIG_LEDS_TRIGGER_CPU is not set
# CONFIG_LEDS_TRIGGER_ACTIVITY is not set
CONFIG_LEDS_TRIGGER_GPIO=y
# CONFIG_LEDS_TRIGGER_DEFAULT_ON is not set
#
# iptables trigger is under Netfilter config (LED target)
#
CONFIG_LEDS_TRIGGER_TRANSIENT=y
# CONFIG_LEDS_TRIGGER_CAMERA is not set
CONFIG_LEDS_TRIGGER_PANIC=y
CONFIG_LEDS_TRIGGER_NETDEV=y
# CONFIG_LEDS_TRIGGER_PATTERN is not set
CONFIG_LEDS_TRIGGER_AUDIO=y
CONFIG_LEDS_TRIGGER_TTY=y
#
# Simple LED drivers
#
CONFIG_ACCESSIBILITY=y
CONFIG_A11Y_BRAILLE_CONSOLE=y
#
# Speakup console speech
#
CONFIG_SPEAKUP=y
CONFIG_SPEAKUP_SYNTH_ACNTSA=y
# CONFIG_SPEAKUP_SYNTH_APOLLO is not set
# CONFIG_SPEAKUP_SYNTH_AUDPTR is not set
CONFIG_SPEAKUP_SYNTH_BNS=y
# CONFIG_SPEAKUP_SYNTH_DECTLK is not set
# CONFIG_SPEAKUP_SYNTH_DECEXT is not set
CONFIG_SPEAKUP_SYNTH_LTLK=y
# CONFIG_SPEAKUP_SYNTH_SOFT is not set
CONFIG_SPEAKUP_SYNTH_SPKOUT=y
# CONFIG_SPEAKUP_SYNTH_TXPRT is not set
# CONFIG_SPEAKUP_SYNTH_DUMMY is not set
# end of Speakup console speech
# CONFIG_INFINIBAND is not set
CONFIG_EDAC_ATOMIC_SCRUB=y
CONFIG_EDAC_SUPPORT=y
CONFIG_RTC_LIB=y
CONFIG_RTC_MC146818_LIB=y
# CONFIG_RTC_CLASS is not set
# CONFIG_DMADEVICES is not set
#
# DMABUF options
#
CONFIG_SYNC_FILE=y
CONFIG_SW_SYNC=y
CONFIG_UDMABUF=y
# CONFIG_DMABUF_MOVE_NOTIFY is not set
CONFIG_DMABUF_DEBUG=y
# CONFIG_DMABUF_SELFTESTS is not set
# CONFIG_DMABUF_HEAPS is not set
# CONFIG_DMABUF_SYSFS_STATS is not set
# end of DMABUF options
CONFIG_AUXDISPLAY=y
CONFIG_CHARLCD=y
CONFIG_LINEDISP=y
CONFIG_HD44780_COMMON=y
CONFIG_HD44780=y
CONFIG_KS0108=y
CONFIG_KS0108_PORT=0x378
CONFIG_KS0108_DELAY=2
CONFIG_CFAG12864B=y
CONFIG_CFAG12864B_RATE=20
CONFIG_IMG_ASCII_LCD=y
CONFIG_HT16K33=y
CONFIG_LCD2S=y
CONFIG_PARPORT_PANEL=y
CONFIG_PANEL_PARPORT=0
CONFIG_PANEL_PROFILE=5
# CONFIG_PANEL_CHANGE_MESSAGE is not set
# CONFIG_CHARLCD_BL_OFF is not set
# CONFIG_CHARLCD_BL_ON is not set
CONFIG_CHARLCD_BL_FLASH=y
CONFIG_PANEL=y
CONFIG_UIO=y
CONFIG_UIO_CIF=y
# CONFIG_UIO_PDRV_GENIRQ is not set
CONFIG_UIO_DMEM_GENIRQ=y
CONFIG_UIO_AEC=y
CONFIG_UIO_SERCOS3=y
# CONFIG_UIO_PCI_GENERIC is not set
# CONFIG_UIO_NETX is not set
CONFIG_UIO_PRUSS=y
CONFIG_UIO_MF624=y
# CONFIG_VFIO is not set
CONFIG_IRQ_BYPASS_MANAGER=y
# CONFIG_VIRT_DRIVERS is not set
CONFIG_VIRTIO=y
CONFIG_VIRTIO_PCI_LIB=y
CONFIG_VIRTIO_PCI_LIB_LEGACY=y
CONFIG_VIRTIO_MENU=y
CONFIG_VIRTIO_PCI=y
CONFIG_VIRTIO_PCI_LEGACY=y
CONFIG_VIRTIO_VDPA=y
CONFIG_VIRTIO_BALLOON=y
CONFIG_VIRTIO_INPUT=y
CONFIG_VIRTIO_MMIO=y
# CONFIG_VIRTIO_MMIO_CMDLINE_DEVICES is not set
CONFIG_VIRTIO_DMA_SHARED_BUFFER=y
CONFIG_VDPA=y
# CONFIG_VDPA_SIM is not set
# CONFIG_VDPA_USER is not set
CONFIG_IFCVF=y
CONFIG_VP_VDPA=y
CONFIG_ALIBABA_ENI_VDPA=y
CONFIG_VHOST_IOTLB=y
CONFIG_VHOST=y
CONFIG_VHOST_MENU=y
CONFIG_VHOST_NET=y
CONFIG_VHOST_VSOCK=y
CONFIG_VHOST_VDPA=y
# CONFIG_VHOST_CROSS_ENDIAN_LEGACY is not set
#
# Microsoft Hyper-V guest support
#
# CONFIG_HYPERV is not set
# end of Microsoft Hyper-V guest support
# CONFIG_GREYBUS is not set
# CONFIG_COMEDI is not set
# CONFIG_STAGING is not set
CONFIG_X86_PLATFORM_DEVICES=y
# CONFIG_ACPI_WMI is not set
# CONFIG_ACERHDF is not set
# CONFIG_ACER_WIRELESS is not set
# CONFIG_ADV_SWBUTTON is not set
# CONFIG_APPLE_GMUX is not set
# CONFIG_ASUS_LAPTOP is not set
# CONFIG_ASUS_WIRELESS is not set
# CONFIG_ASUS_TF103C_DOCK is not set
# CONFIG_X86_PLATFORM_DRIVERS_DELL is not set
CONFIG_AMILO_RFKILL=y
# CONFIG_FUJITSU_LAPTOP is not set
# CONFIG_FUJITSU_TABLET is not set
# CONFIG_GPD_POCKET_FAN is not set
# CONFIG_HP_ACCEL is not set
# CONFIG_WIRELESS_HOTKEY is not set
# CONFIG_IBM_RTL is not set
# CONFIG_IDEAPAD_LAPTOP is not set
CONFIG_SENSORS_HDAPS=y
# CONFIG_THINKPAD_ACPI is not set
CONFIG_INTEL_ATOMISP2_PDX86=y
CONFIG_INTEL_ATOMISP2_PM=y
# CONFIG_INTEL_SAR_INT1092 is not set
# CONFIG_INTEL_SKL_INT3472 is not set
# CONFIG_INTEL_PMC_CORE is not set
# CONFIG_INTEL_HID_EVENT is not set
# CONFIG_INTEL_VBTN is not set
# CONFIG_INTEL_INT0002_VGPIO is not set
# CONFIG_INTEL_OAKTRAIL is not set
# CONFIG_INTEL_PUNIT_IPC is not set
# CONFIG_INTEL_RST is not set
# CONFIG_INTEL_SMARTCONNECT is not set
# CONFIG_INTEL_VSEC is not set
# CONFIG_MSI_LAPTOP is not set
# CONFIG_PCENGINES_APU2 is not set
CONFIG_BARCO_P50_GPIO=y
CONFIG_SAMSUNG_LAPTOP=y
# CONFIG_SAMSUNG_Q10 is not set
# CONFIG_TOSHIBA_BT_RFKILL is not set
# CONFIG_TOSHIBA_HAPS is not set
# CONFIG_ACPI_CMPC is not set
# CONFIG_COMPAL_LAPTOP is not set
# CONFIG_PANASONIC_LAPTOP is not set
# CONFIG_SONY_LAPTOP is not set
# CONFIG_SYSTEM76_ACPI is not set
# CONFIG_TOPSTAR_LAPTOP is not set
# CONFIG_MLX_PLATFORM is not set
# CONFIG_INTEL_IPS is not set
# CONFIG_INTEL_SCU_PCI is not set
# CONFIG_INTEL_SCU_PLATFORM is not set
# CONFIG_SIEMENS_SIMATIC_IPC is not set
# CONFIG_WINMATE_FM07_KEYS is not set
CONFIG_PMC_ATOM=y
CONFIG_CHROME_PLATFORMS=y
# CONFIG_CHROMEOS_ACPI is not set
CONFIG_CHROMEOS_LAPTOP=y
CONFIG_CHROMEOS_PSTORE=y
# CONFIG_CHROMEOS_TBMC is not set
CONFIG_CROS_EC=y
# CONFIG_CROS_EC_I2C is not set
# CONFIG_CROS_EC_LPC is not set
CONFIG_CROS_EC_PROTO=y
# CONFIG_CROS_KBD_LED_BACKLIGHT is not set
CONFIG_CROS_EC_CHARDEV=y
CONFIG_CROS_EC_LIGHTBAR=y
CONFIG_CROS_EC_DEBUGFS=y
# CONFIG_CROS_EC_SENSORHUB is not set
CONFIG_CROS_EC_SYSFS=y
# CONFIG_CROS_USBPD_NOTIFY is not set
# CONFIG_CHROMEOS_PRIVACY_SCREEN is not set
# CONFIG_MELLANOX_PLATFORM is not set
CONFIG_SURFACE_PLATFORMS=y
# CONFIG_SURFACE_3_POWER_OPREGION is not set
# CONFIG_SURFACE_GPE is not set
# CONFIG_SURFACE_HOTPLUG is not set
# CONFIG_SURFACE_PRO3_BUTTON is not set
# CONFIG_SURFACE_AGGREGATOR is not set
CONFIG_HAVE_CLK=y
CONFIG_HAVE_CLK_PREPARE=y
CONFIG_COMMON_CLK=y
# CONFIG_COMMON_CLK_MAX9485 is not set
# CONFIG_COMMON_CLK_SI5341 is not set
# CONFIG_COMMON_CLK_SI5351 is not set
CONFIG_COMMON_CLK_SI544=y
CONFIG_COMMON_CLK_CDCE706=y
CONFIG_COMMON_CLK_CS2000_CP=y
CONFIG_COMMON_CLK_PWM=y
CONFIG_XILINX_VCU=y
CONFIG_HWSPINLOCK=y
#
# Clock Source drivers
#
CONFIG_CLKSRC_I8253=y
CONFIG_CLKEVT_I8253=y
CONFIG_I8253_LOCK=y
CONFIG_CLKBLD_I8253=y
# end of Clock Source drivers
CONFIG_MAILBOX=y
# CONFIG_PCC is not set
CONFIG_ALTERA_MBOX=y
CONFIG_IOMMU_IOVA=y
CONFIG_IOMMU_API=y
CONFIG_IOMMU_SUPPORT=y
#
# Generic IOMMU Pagetable Support
#
# end of Generic IOMMU Pagetable Support
# CONFIG_IOMMU_DEBUGFS is not set
# CONFIG_IOMMU_DEFAULT_DMA_STRICT is not set
# CONFIG_IOMMU_DEFAULT_DMA_LAZY is not set
CONFIG_IOMMU_DEFAULT_PASSTHROUGH=y
CONFIG_IOMMU_DMA=y
# CONFIG_INTEL_IOMMU is not set
CONFIG_VIRTIO_IOMMU=y
#
# Remoteproc drivers
#
# CONFIG_REMOTEPROC is not set
# end of Remoteproc drivers
#
# Rpmsg drivers
#
CONFIG_RPMSG=y
CONFIG_RPMSG_CHAR=y
# CONFIG_RPMSG_CTRL is not set
CONFIG_RPMSG_NS=y
# CONFIG_RPMSG_QCOM_GLINK_RPM is not set
CONFIG_RPMSG_VIRTIO=y
# end of Rpmsg drivers
# CONFIG_SOUNDWIRE is not set
#
# SOC (System On Chip) specific Drivers
#
#
# Amlogic SoC drivers
#
# end of Amlogic SoC drivers
#
# Broadcom SoC drivers
#
# end of Broadcom SoC drivers
#
# NXP/Freescale QorIQ SoC drivers
#
# end of NXP/Freescale QorIQ SoC drivers
#
# i.MX SoC drivers
#
# end of i.MX SoC drivers
#
# Enable LiteX SoC Builder specific drivers
#
# end of Enable LiteX SoC Builder specific drivers
#
# Qualcomm SoC drivers
#
# end of Qualcomm SoC drivers
# CONFIG_SOC_TI is not set
#
# Xilinx SoC drivers
#
# end of Xilinx SoC drivers
# end of SOC (System On Chip) specific Drivers
CONFIG_PM_DEVFREQ=y
#
# DEVFREQ Governors
#
CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND=y
# CONFIG_DEVFREQ_GOV_PERFORMANCE is not set
# CONFIG_DEVFREQ_GOV_POWERSAVE is not set
CONFIG_DEVFREQ_GOV_USERSPACE=y
CONFIG_DEVFREQ_GOV_PASSIVE=y
#
# DEVFREQ Drivers
#
CONFIG_PM_DEVFREQ_EVENT=y
CONFIG_EXTCON=y
#
# Extcon Device Drivers
#
# CONFIG_EXTCON_AXP288 is not set
CONFIG_EXTCON_FSA9480=y
CONFIG_EXTCON_GPIO=y
# CONFIG_EXTCON_INTEL_INT3496 is not set
CONFIG_EXTCON_MAX3355=y
# CONFIG_EXTCON_MAX77693 is not set
CONFIG_EXTCON_PTN5150=y
CONFIG_EXTCON_RT8973A=y
CONFIG_EXTCON_SM5502=y
CONFIG_EXTCON_USB_GPIO=y
CONFIG_EXTCON_USBC_CROS_EC=y
CONFIG_EXTCON_USBC_TUSB320=y
CONFIG_MEMORY=y
# CONFIG_IIO is not set
CONFIG_NTB=y
# CONFIG_NTB_MSI is not set
CONFIG_NTB_IDT=y
# CONFIG_NTB_EPF is not set
CONFIG_NTB_SWITCHTEC=y
CONFIG_NTB_PINGPONG=y
# CONFIG_NTB_TOOL is not set
CONFIG_NTB_PERF=y
CONFIG_NTB_TRANSPORT=y
CONFIG_VME_BUS=y
#
# VME Bridge Drivers
#
# CONFIG_VME_CA91CX42 is not set
CONFIG_VME_TSI148=y
CONFIG_VME_FAKE=y
#
# VME Board Drivers
#
# CONFIG_VMIVME_7805 is not set
CONFIG_PWM=y
CONFIG_PWM_SYSFS=y
# CONFIG_PWM_DEBUG is not set
CONFIG_PWM_CROS_EC=y
CONFIG_PWM_DWC=y
CONFIG_PWM_LPSS=y
CONFIG_PWM_LPSS_PCI=y
CONFIG_PWM_LPSS_PLATFORM=y
# CONFIG_PWM_PCA9685 is not set
#
# IRQ chip support
#
# end of IRQ chip support
CONFIG_IPACK_BUS=y
CONFIG_BOARD_TPCI200=y
# CONFIG_SERIAL_IPOCTAL is not set
CONFIG_RESET_CONTROLLER=y
CONFIG_RESET_TI_SYSCON=y
#
# PHY Subsystem
#
CONFIG_GENERIC_PHY=y
# CONFIG_USB_LGM_PHY is not set
CONFIG_PHY_CAN_TRANSCEIVER=y
#
# PHY drivers for Broadcom platforms
#
CONFIG_BCM_KONA_USB2_PHY=y
# end of PHY drivers for Broadcom platforms
# CONFIG_PHY_PXA_28NM_HSIC is not set
CONFIG_PHY_PXA_28NM_USB2=y
# CONFIG_PHY_INTEL_LGM_EMMC is not set
# end of PHY Subsystem
# CONFIG_POWERCAP is not set
CONFIG_MCB=y
CONFIG_MCB_PCI=y
# CONFIG_MCB_LPC is not set
#
# Performance monitor support
#
# end of Performance monitor support
# CONFIG_RAS is not set
CONFIG_USB4=y
# CONFIG_USB4_DEBUGFS_WRITE is not set
# CONFIG_USB4_DMA_TEST is not set
#
# Android
#
# CONFIG_ANDROID is not set
# end of Android
CONFIG_DAX=y
CONFIG_NVMEM=y
CONFIG_NVMEM_SYSFS=y
CONFIG_RAVE_SP_EEPROM=y
CONFIG_NVMEM_RMEM=y
#
# HW tracing support
#
# CONFIG_STM is not set
CONFIG_INTEL_TH=y
# CONFIG_INTEL_TH_PCI is not set
# CONFIG_INTEL_TH_ACPI is not set
CONFIG_INTEL_TH_GTH=y
CONFIG_INTEL_TH_MSU=y
CONFIG_INTEL_TH_PTI=y
CONFIG_INTEL_TH_DEBUG=y
# end of HW tracing support
CONFIG_FPGA=y
CONFIG_ALTERA_PR_IP_CORE=y
CONFIG_FPGA_MGR_ALTERA_CVP=y
# CONFIG_FPGA_BRIDGE is not set
# CONFIG_FPGA_DFL is not set
CONFIG_TEE=y
CONFIG_MULTIPLEXER=y
#
# Multiplexer drivers
#
CONFIG_MUX_ADG792A=y
CONFIG_MUX_GPIO=y
# end of Multiplexer drivers
CONFIG_PM_OPP=y
CONFIG_SIOX=y
CONFIG_SIOX_BUS_GPIO=y
CONFIG_SLIMBUS=y
# CONFIG_SLIM_QCOM_CTRL is not set
CONFIG_INTERCONNECT=y
CONFIG_COUNTER=y
CONFIG_INTERRUPT_CNT=y
CONFIG_INTEL_QEP=y
CONFIG_MOST=y
CONFIG_MOST_CDEV=y
# CONFIG_PECI is not set
# CONFIG_HTE is not set
# end of Device Drivers
#
# File systems
#
CONFIG_DCACHE_WORD_ACCESS=y
# CONFIG_VALIDATE_FS_PARSER is not set
CONFIG_FS_IOMAP=y
CONFIG_EXT2_FS=y
# CONFIG_EXT2_FS_XATTR is not set
# CONFIG_EXT3_FS is not set
CONFIG_EXT4_FS=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
CONFIG_EXT4_DEBUG=y
CONFIG_JBD2=y
# CONFIG_JBD2_DEBUG is not set
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
CONFIG_JFS_FS=y
# CONFIG_JFS_POSIX_ACL is not set
CONFIG_JFS_SECURITY=y
# CONFIG_JFS_DEBUG is not set
# CONFIG_JFS_STATISTICS is not set
CONFIG_XFS_FS=y
CONFIG_XFS_SUPPORT_V4=y
# CONFIG_XFS_QUOTA is not set
CONFIG_XFS_POSIX_ACL=y
CONFIG_XFS_RT=y
CONFIG_XFS_ONLINE_SCRUB=y
# CONFIG_XFS_ONLINE_REPAIR is not set
CONFIG_XFS_DEBUG=y
CONFIG_XFS_ASSERT_FATAL=y
CONFIG_GFS2_FS=y
# CONFIG_OCFS2_FS is not set
# CONFIG_BTRFS_FS is not set
CONFIG_NILFS2_FS=y
# CONFIG_F2FS_FS is not set
CONFIG_ZONEFS_FS=y
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=y
CONFIG_EXPORTFS_BLOCK_OPS=y
CONFIG_FILE_LOCKING=y
# CONFIG_FS_ENCRYPTION is not set
# CONFIG_FS_VERITY is not set
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_FANOTIFY=y
# CONFIG_FANOTIFY_ACCESS_PERMISSIONS is not set
CONFIG_QUOTA=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
# CONFIG_PRINT_QUOTA_WARNING is not set
CONFIG_QUOTA_DEBUG=y
CONFIG_QUOTA_TREE=y
# CONFIG_QFMT_V1 is not set
CONFIG_QFMT_V2=y
CONFIG_QUOTACTL=y
# CONFIG_AUTOFS4_FS is not set
CONFIG_AUTOFS_FS=y
CONFIG_FUSE_FS=y
CONFIG_CUSE=y
CONFIG_VIRTIO_FS=y
CONFIG_OVERLAY_FS=y
CONFIG_OVERLAY_FS_REDIRECT_DIR=y
# CONFIG_OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW is not set
CONFIG_OVERLAY_FS_INDEX=y
CONFIG_OVERLAY_FS_METACOPY=y
#
# Caches
#
# CONFIG_FSCACHE is not set
# end of Caches
#
# CD-ROM/DVD Filesystems
#
# CONFIG_ISO9660_FS is not set
# CONFIG_UDF_FS is not set
# end of CD-ROM/DVD Filesystems
#
# DOS/FAT/EXFAT/NT Filesystems
#
CONFIG_FAT_FS=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
CONFIG_FAT_DEFAULT_UTF8=y
CONFIG_EXFAT_FS=y
CONFIG_EXFAT_DEFAULT_IOCHARSET="utf8"
CONFIG_NTFS_FS=y
CONFIG_NTFS_DEBUG=y
CONFIG_NTFS_RW=y
CONFIG_NTFS3_FS=y
# CONFIG_NTFS3_LZX_XPRESS is not set
CONFIG_NTFS3_FS_POSIX_ACL=y
# end of DOS/FAT/EXFAT/NT Filesystems
#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
# CONFIG_PROC_CHILDREN is not set
CONFIG_PROC_PID_ARCH_STATUS=y
CONFIG_KERNFS=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
# CONFIG_TMPFS_XATTR is not set
CONFIG_HUGETLBFS=y
CONFIG_HUGETLB_PAGE=y
CONFIG_MEMFD_CREATE=y
CONFIG_CONFIGFS_FS=y
# end of Pseudo filesystems
# CONFIG_MISC_FILESYSTEMS is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V2=y
CONFIG_NFS_V3=y
# CONFIG_NFS_V3_ACL is not set
CONFIG_NFS_V4=m
# CONFIG_NFS_SWAP is not set
# CONFIG_NFS_V4_1 is not set
# CONFIG_ROOT_NFS is not set
# CONFIG_NFS_USE_LEGACY_DNS is not set
CONFIG_NFS_USE_KERNEL_DNS=y
CONFIG_NFS_DISABLE_UDP_SUPPORT=y
# CONFIG_NFSD is not set
CONFIG_GRACE_PERIOD=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=y
CONFIG_SUNRPC_GSS=m
# CONFIG_SUNRPC_DEBUG is not set
# CONFIG_CEPH_FS is not set
CONFIG_CIFS=m
CONFIG_CIFS_STATS2=y
CONFIG_CIFS_ALLOW_INSECURE_LEGACY=y
# CONFIG_CIFS_UPCALL is not set
# CONFIG_CIFS_XATTR is not set
CONFIG_CIFS_DEBUG=y
# CONFIG_CIFS_DEBUG2 is not set
# CONFIG_CIFS_DEBUG_DUMP_KEYS is not set
# CONFIG_CIFS_DFS_UPCALL is not set
# CONFIG_CIFS_SWN_UPCALL is not set
# CONFIG_SMB_SERVER is not set
CONFIG_SMBFS_COMMON=m
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
# CONFIG_9P_FS is not set
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_737=y
CONFIG_NLS_CODEPAGE_775=y
CONFIG_NLS_CODEPAGE_850=y
CONFIG_NLS_CODEPAGE_852=y
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
CONFIG_NLS_CODEPAGE_861=y
CONFIG_NLS_CODEPAGE_862=y
CONFIG_NLS_CODEPAGE_863=y
CONFIG_NLS_CODEPAGE_864=y
CONFIG_NLS_CODEPAGE_865=y
# CONFIG_NLS_CODEPAGE_866 is not set
CONFIG_NLS_CODEPAGE_869=y
CONFIG_NLS_CODEPAGE_936=y
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
CONFIG_NLS_CODEPAGE_874=y
CONFIG_NLS_ISO8859_8=y
CONFIG_NLS_CODEPAGE_1250=y
CONFIG_NLS_CODEPAGE_1251=y
# CONFIG_NLS_ASCII is not set
CONFIG_NLS_ISO8859_1=y
# CONFIG_NLS_ISO8859_2 is not set
CONFIG_NLS_ISO8859_3=y
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
CONFIG_NLS_ISO8859_15=y
# CONFIG_NLS_KOI8_R is not set
CONFIG_NLS_KOI8_U=y
CONFIG_NLS_MAC_ROMAN=y
CONFIG_NLS_MAC_CELTIC=y
CONFIG_NLS_MAC_CENTEURO=y
CONFIG_NLS_MAC_CROATIAN=y
# 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=y
CONFIG_NLS_MAC_INUIT=y
# CONFIG_NLS_MAC_ROMANIAN is not set
# CONFIG_NLS_MAC_TURKISH is not set
CONFIG_NLS_UTF8=y
# CONFIG_DLM is not set
CONFIG_UNICODE=y
# CONFIG_UNICODE_NORMALIZATION_SELFTEST is not set
CONFIG_IO_WQ=y
# end of File systems
#
# Security options
#
CONFIG_KEYS=y
# CONFIG_KEYS_REQUEST_CACHE is not set
# CONFIG_PERSISTENT_KEYRINGS is not set
# CONFIG_BIG_KEYS is not set
CONFIG_TRUSTED_KEYS=y
CONFIG_TRUSTED_KEYS_TPM=y
CONFIG_TRUSTED_KEYS_TEE=y
CONFIG_ENCRYPTED_KEYS=y
# CONFIG_USER_DECRYPTED_DATA is not set
# CONFIG_KEY_DH_OPERATIONS is not set
CONFIG_KEY_NOTIFICATIONS=y
# CONFIG_SECURITY_DMESG_RESTRICT is not set
CONFIG_SECURITY=y
CONFIG_SECURITYFS=y
CONFIG_SECURITY_NETWORK=y
CONFIG_SECURITY_PATH=y
CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y
# CONFIG_HARDENED_USERCOPY is not set
CONFIG_STATIC_USERMODEHELPER=y
CONFIG_STATIC_USERMODEHELPER_PATH="/sbin/usermode-helper"
# CONFIG_SECURITY_SMACK is not set
# CONFIG_SECURITY_TOMOYO is not set
# CONFIG_SECURITY_APPARMOR is not set
CONFIG_SECURITY_LOADPIN=y
# CONFIG_SECURITY_LOADPIN_ENFORCE is not set
# CONFIG_SECURITY_YAMA is not set
CONFIG_SECURITY_SAFESETID=y
# CONFIG_SECURITY_LOCKDOWN_LSM is not set
# CONFIG_SECURITY_LANDLOCK is not set
CONFIG_INTEGRITY=y
# CONFIG_INTEGRITY_SIGNATURE is not set
CONFIG_IMA=y
CONFIG_IMA_MEASURE_PCR_IDX=10
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_WRITE_POLICY is not set
CONFIG_IMA_READ_POLICY=y
CONFIG_IMA_APPRAISE=y
# CONFIG_IMA_APPRAISE_BOOTPARAM is not set
# CONFIG_IMA_DISABLE_HTABLE is not set
CONFIG_EVM=y
# CONFIG_EVM_ATTR_FSUUID is not set
CONFIG_EVM_ADD_XATTRS=y
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_LSM="landlock,lockdown,yama,loadpin,safesetid,integrity,tomoyo,bpf"
#
# Kernel hardening options
#
#
# Memory initialization
#
CONFIG_CC_HAS_AUTO_VAR_INIT_PATTERN=y
CONFIG_CC_HAS_AUTO_VAR_INIT_ZERO=y
# CONFIG_INIT_STACK_NONE is not set
CONFIG_INIT_STACK_ALL_PATTERN=y
# CONFIG_INIT_STACK_ALL_ZERO is not set
# CONFIG_INIT_ON_ALLOC_DEFAULT_ON is not set
CONFIG_INIT_ON_FREE_DEFAULT_ON=y
CONFIG_CC_HAS_ZERO_CALL_USED_REGS=y
# CONFIG_ZERO_CALL_USED_REGS is not set
# end of Memory initialization
CONFIG_CC_HAS_RANDSTRUCT=y
CONFIG_RANDSTRUCT_NONE=y
# CONFIG_RANDSTRUCT_FULL is not set
# end of Kernel hardening options
# end of Security options
CONFIG_XOR_BLOCKS=y
CONFIG_ASYNC_CORE=y
CONFIG_ASYNC_XOR=y
CONFIG_CRYPTO=y
#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_SKCIPHER=y
CONFIG_CRYPTO_SKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_RNG_DEFAULT=y
CONFIG_CRYPTO_AKCIPHER2=y
CONFIG_CRYPTO_KPP2=y
CONFIG_CRYPTO_KPP=y
CONFIG_CRYPTO_ACOMP2=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
CONFIG_CRYPTO_USER=y
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
CONFIG_CRYPTO_GF128MUL=y
CONFIG_CRYPTO_NULL=y
CONFIG_CRYPTO_NULL2=y
# CONFIG_CRYPTO_PCRYPT is not set
CONFIG_CRYPTO_CRYPTD=y
CONFIG_CRYPTO_AUTHENC=y
# CONFIG_CRYPTO_TEST is not set
CONFIG_CRYPTO_SIMD=y
#
# Public-key cryptography
#
# CONFIG_CRYPTO_RSA is not set
CONFIG_CRYPTO_DH=y
# CONFIG_CRYPTO_DH_RFC7919_GROUPS is not set
CONFIG_CRYPTO_ECC=y
CONFIG_CRYPTO_ECDH=y
# CONFIG_CRYPTO_ECDSA is not set
# CONFIG_CRYPTO_ECRDSA is not set
# CONFIG_CRYPTO_SM2 is not set
CONFIG_CRYPTO_CURVE25519=y
#
# Authenticated Encryption with Associated Data
#
CONFIG_CRYPTO_CCM=y
CONFIG_CRYPTO_GCM=y
CONFIG_CRYPTO_CHACHA20POLY1305=y
CONFIG_CRYPTO_AEGIS128=y
CONFIG_CRYPTO_SEQIV=y
CONFIG_CRYPTO_ECHAINIV=y
#
# Block modes
#
CONFIG_CRYPTO_CBC=y
# CONFIG_CRYPTO_CFB is not set
CONFIG_CRYPTO_CTR=y
# CONFIG_CRYPTO_CTS is not set
CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_LRW=y
CONFIG_CRYPTO_OFB=y
CONFIG_CRYPTO_PCBC=y
# CONFIG_CRYPTO_XTS is not set
CONFIG_CRYPTO_KEYWRAP=y
# CONFIG_CRYPTO_ADIANTUM is not set
CONFIG_CRYPTO_ESSIV=y
#
# Hash modes
#
CONFIG_CRYPTO_CMAC=m
CONFIG_CRYPTO_HMAC=y
# CONFIG_CRYPTO_XCBC is not set
CONFIG_CRYPTO_VMAC=y
#
# Digest
#
CONFIG_CRYPTO_CRC32C=y
CONFIG_CRYPTO_CRC32C_INTEL=y
CONFIG_CRYPTO_CRC32=y
CONFIG_CRYPTO_CRC32_PCLMUL=y
CONFIG_CRYPTO_XXHASH=y
# CONFIG_CRYPTO_BLAKE2B is not set
CONFIG_CRYPTO_BLAKE2S=y
CONFIG_CRYPTO_CRCT10DIF=y
CONFIG_CRYPTO_CRC64_ROCKSOFT=y
CONFIG_CRYPTO_GHASH=y
CONFIG_CRYPTO_POLY1305=y
CONFIG_CRYPTO_MD4=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=y
CONFIG_CRYPTO_RMD160=y
CONFIG_CRYPTO_SHA1=y
CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_SHA512=y
# CONFIG_CRYPTO_SHA3 is not set
# CONFIG_CRYPTO_SM3_GENERIC is not set
CONFIG_CRYPTO_STREEBOG=y
CONFIG_CRYPTO_WP512=y
#
# Ciphers
#
CONFIG_CRYPTO_AES=y
CONFIG_CRYPTO_AES_TI=y
CONFIG_CRYPTO_AES_NI_INTEL=y
CONFIG_CRYPTO_BLOWFISH=y
CONFIG_CRYPTO_BLOWFISH_COMMON=y
CONFIG_CRYPTO_CAMELLIA=y
CONFIG_CRYPTO_CAST_COMMON=y
# CONFIG_CRYPTO_CAST5 is not set
CONFIG_CRYPTO_CAST6=y
CONFIG_CRYPTO_DES=y
CONFIG_CRYPTO_FCRYPT=y
CONFIG_CRYPTO_CHACHA20=y
CONFIG_CRYPTO_SERPENT=y
CONFIG_CRYPTO_SERPENT_SSE2_586=y
# CONFIG_CRYPTO_SM4_GENERIC is not set
CONFIG_CRYPTO_TWOFISH=y
CONFIG_CRYPTO_TWOFISH_COMMON=y
CONFIG_CRYPTO_TWOFISH_586=y
#
# Compression
#
# CONFIG_CRYPTO_DEFLATE is not set
# CONFIG_CRYPTO_LZO is not set
CONFIG_CRYPTO_842=y
# CONFIG_CRYPTO_LZ4 is not set
CONFIG_CRYPTO_LZ4HC=y
CONFIG_CRYPTO_ZSTD=y
#
# Random Number Generation
#
CONFIG_CRYPTO_ANSI_CPRNG=y
CONFIG_CRYPTO_DRBG_MENU=y
CONFIG_CRYPTO_DRBG_HMAC=y
# CONFIG_CRYPTO_DRBG_HASH is not set
CONFIG_CRYPTO_DRBG_CTR=y
CONFIG_CRYPTO_DRBG=y
CONFIG_CRYPTO_JITTERENTROPY=y
CONFIG_CRYPTO_USER_API=y
# CONFIG_CRYPTO_USER_API_HASH is not set
# CONFIG_CRYPTO_USER_API_SKCIPHER is not set
CONFIG_CRYPTO_USER_API_RNG=y
# CONFIG_CRYPTO_USER_API_RNG_CAVP is not set
CONFIG_CRYPTO_USER_API_AEAD=y
# CONFIG_CRYPTO_USER_API_ENABLE_OBSOLETE is not set
# CONFIG_CRYPTO_STATS is not set
CONFIG_CRYPTO_HASH_INFO=y
# CONFIG_CRYPTO_HW is not set
# CONFIG_ASYMMETRIC_KEY_TYPE is not set
#
# Certificates for signature checking
#
# CONFIG_SYSTEM_BLACKLIST_KEYRING is not set
# end of Certificates for signature checking
CONFIG_BINARY_PRINTF=y
#
# Library routines
#
CONFIG_LINEAR_RANGES=y
CONFIG_PACKING=y
CONFIG_BITREVERSE=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
CONFIG_GENERIC_NET_UTILS=y
CONFIG_CORDIC=y
CONFIG_PRIME_NUMBERS=y
CONFIG_RATIONAL=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_IOMAP=y
CONFIG_ARCH_HAS_FAST_MULTIPLIER=y
CONFIG_ARCH_USE_SYM_ANNOTATIONS=y
#
# Crypto library routines
#
CONFIG_CRYPTO_LIB_AES=y
CONFIG_CRYPTO_LIB_BLAKE2S_GENERIC=y
CONFIG_CRYPTO_LIB_CHACHA_GENERIC=y
CONFIG_CRYPTO_LIB_CHACHA=y
CONFIG_CRYPTO_LIB_CURVE25519_GENERIC=y
CONFIG_CRYPTO_LIB_CURVE25519=y
CONFIG_CRYPTO_LIB_DES=y
CONFIG_CRYPTO_LIB_POLY1305_RSIZE=1
CONFIG_CRYPTO_LIB_POLY1305_GENERIC=y
CONFIG_CRYPTO_LIB_POLY1305=y
CONFIG_CRYPTO_LIB_CHACHA20POLY1305=y
CONFIG_CRYPTO_LIB_SHA256=y
# end of Crypto library routines
CONFIG_LIB_MEMNEQ=y
CONFIG_CRC_CCITT=y
CONFIG_CRC16=y
CONFIG_CRC_T10DIF=y
CONFIG_CRC64_ROCKSOFT=y
CONFIG_CRC_ITU_T=y
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_CRC64=y
CONFIG_CRC4=y
CONFIG_CRC7=y
CONFIG_LIBCRC32C=y
CONFIG_CRC8=y
CONFIG_XXHASH=y
# CONFIG_RANDOM32_SELFTEST is not set
CONFIG_842_COMPRESS=y
CONFIG_842_DECOMPRESS=y
CONFIG_ZLIB_INFLATE=y
CONFIG_LZO_COMPRESS=y
CONFIG_LZO_DECOMPRESS=y
CONFIG_LZ4HC_COMPRESS=y
CONFIG_LZ4_DECOMPRESS=y
CONFIG_ZSTD_COMPRESS=y
CONFIG_ZSTD_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_MICROLZMA=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_ZSTD=y
CONFIG_GENERIC_ALLOCATOR=y
CONFIG_REED_SOLOMON=y
CONFIG_REED_SOLOMON_DEC8=y
CONFIG_REED_SOLOMON_DEC16=y
CONFIG_BCH=y
CONFIG_INTERVAL_TREE=y
CONFIG_ASSOCIATIVE_ARRAY=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT_MAP=y
CONFIG_HAS_DMA=y
CONFIG_DMA_OPS=y
CONFIG_NEED_SG_DMA_LENGTH=y
# CONFIG_DMA_API_DEBUG is not set
CONFIG_DMA_MAP_BENCHMARK=y
CONFIG_SGL_ALLOC=y
CONFIG_CHECK_SIGNATURE=y
CONFIG_CPU_RMAP=y
CONFIG_DQL=y
CONFIG_GLOB=y
# CONFIG_GLOB_SELFTEST is not set
CONFIG_NLATTR=y
CONFIG_CLZ_TAB=y
# CONFIG_IRQ_POLL is not set
CONFIG_MPILIB=y
CONFIG_DIMLIB=y
CONFIG_OID_REGISTRY=y
CONFIG_HAVE_GENERIC_VDSO=y
CONFIG_GENERIC_GETTIMEOFDAY=y
CONFIG_GENERIC_VDSO_32=y
CONFIG_GENERIC_VDSO_TIME_NS=y
CONFIG_FONT_SUPPORT=y
CONFIG_FONTS=y
# CONFIG_FONT_8x8 is not set
CONFIG_FONT_8x16=y
# CONFIG_FONT_6x11 is not set
# CONFIG_FONT_7x14 is not set
CONFIG_FONT_PEARL_8x8=y
# CONFIG_FONT_ACORN_8x8 is not set
CONFIG_FONT_MINI_4x6=y
CONFIG_FONT_6x10=y
# CONFIG_FONT_10x18 is not set
CONFIG_FONT_SUN8x16=y
# CONFIG_FONT_SUN12x22 is not set
CONFIG_FONT_TER16x32=y
# CONFIG_FONT_6x8 is not set
CONFIG_SG_POOL=y
CONFIG_ARCH_STACKWALK=y
CONFIG_STACKDEPOT=y
CONFIG_STACKDEPOT_ALWAYS_INIT=y
CONFIG_STACK_HASH_ORDER=20
CONFIG_SBITMAP=y
# end of Library routines
CONFIG_ASN1_ENCODER=y
#
# Kernel hacking
#
#
# printk and dmesg options
#
CONFIG_PRINTK_TIME=y
CONFIG_PRINTK_CALLER=y
CONFIG_STACKTRACE_BUILD_ID=y
CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7
CONFIG_CONSOLE_LOGLEVEL_QUIET=4
CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_DYNAMIC_DEBUG is not set
CONFIG_DYNAMIC_DEBUG_CORE=y
# CONFIG_SYMBOLIC_ERRNAME is not set
CONFIG_DEBUG_BUGVERBOSE=y
# end of printk and dmesg options
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_MISC=y
#
# Compile-time checks and compiler options
#
CONFIG_DEBUG_INFO_NONE=y
# CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT is not set
# CONFIG_DEBUG_INFO_DWARF4 is not set
# CONFIG_DEBUG_INFO_DWARF5 is not set
CONFIG_FRAME_WARN=8192
# CONFIG_STRIP_ASM_SYMS is not set
CONFIG_HEADERS_INSTALL=y
CONFIG_SECTION_MISMATCH_WARN_ONLY=y
CONFIG_FRAME_POINTER=y
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
# end of Compile-time checks and compiler options
#
# Generic Kernel Debugging Instruments
#
CONFIG_MAGIC_SYSRQ=y
CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0x1
CONFIG_MAGIC_SYSRQ_SERIAL=y
CONFIG_MAGIC_SYSRQ_SERIAL_SEQUENCE=""
CONFIG_DEBUG_FS=y
# CONFIG_DEBUG_FS_ALLOW_ALL is not set
# CONFIG_DEBUG_FS_DISALLOW_MOUNT is not set
CONFIG_DEBUG_FS_ALLOW_NONE=y
CONFIG_HAVE_ARCH_KGDB=y
# CONFIG_KGDB is not set
CONFIG_ARCH_HAS_UBSAN_SANITIZE_ALL=y
CONFIG_UBSAN=y
# CONFIG_UBSAN_TRAP is not set
CONFIG_CC_HAS_UBSAN_BOUNDS=y
CONFIG_CC_HAS_UBSAN_ARRAY_BOUNDS=y
CONFIG_UBSAN_BOUNDS=y
CONFIG_UBSAN_ARRAY_BOUNDS=y
CONFIG_UBSAN_SHIFT=y
# CONFIG_UBSAN_DIV_ZERO is not set
CONFIG_UBSAN_UNREACHABLE=y
# CONFIG_UBSAN_BOOL is not set
# CONFIG_UBSAN_ENUM is not set
# CONFIG_UBSAN_ALIGNMENT is not set
CONFIG_UBSAN_SANITIZE_ALL=y
# CONFIG_TEST_UBSAN is not set
CONFIG_HAVE_KCSAN_COMPILER=y
# end of Generic Kernel Debugging Instruments
#
# Networking Debugging
#
# CONFIG_NET_DEV_REFCNT_TRACKER is not set
# CONFIG_NET_NS_REFCNT_TRACKER is not set
# CONFIG_DEBUG_NET is not set
# end of Networking Debugging
#
# Memory Debugging
#
CONFIG_PAGE_EXTENSION=y
# CONFIG_DEBUG_PAGEALLOC is not set
CONFIG_SLUB_DEBUG=y
CONFIG_SLUB_DEBUG_ON=y
CONFIG_PAGE_OWNER=y
# CONFIG_PAGE_POISONING is not set
# CONFIG_DEBUG_PAGE_REF is not set
# CONFIG_DEBUG_RODATA_TEST is not set
CONFIG_ARCH_HAS_DEBUG_WX=y
CONFIG_DEBUG_WX=y
CONFIG_GENERIC_PTDUMP=y
CONFIG_PTDUMP_CORE=y
# CONFIG_PTDUMP_DEBUGFS is not set
# CONFIG_DEBUG_OBJECTS is not set
CONFIG_HAVE_DEBUG_KMEMLEAK=y
# CONFIG_DEBUG_KMEMLEAK is not set
# CONFIG_DEBUG_STACK_USAGE is not set
# CONFIG_SCHED_STACK_END_CHECK is not set
CONFIG_ARCH_HAS_DEBUG_VM_PGTABLE=y
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_VM_PGTABLE is not set
CONFIG_ARCH_HAS_DEBUG_VIRTUAL=y
# CONFIG_DEBUG_VIRTUAL is not set
CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_DEBUG_PER_CPU_MAPS is not set
# CONFIG_DEBUG_KMAP_LOCAL is not set
CONFIG_ARCH_SUPPORTS_KMAP_LOCAL_FORCE_MAP=y
# CONFIG_DEBUG_KMAP_LOCAL_FORCE_MAP is not set
# CONFIG_DEBUG_HIGHMEM is not set
CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
# CONFIG_DEBUG_STACKOVERFLOW is not set
CONFIG_CC_HAS_KASAN_GENERIC=y
CONFIG_CC_HAS_KASAN_SW_TAGS=y
CONFIG_CC_HAS_WORKING_NOSANITIZE_ADDRESS=y
CONFIG_HAVE_ARCH_KFENCE=y
# CONFIG_KFENCE is not set
# end of Memory Debugging
# CONFIG_DEBUG_SHIRQ is not set
#
# Debug Oops, Lockups and Hangs
#
CONFIG_PANIC_ON_OOPS=y
CONFIG_PANIC_ON_OOPS_VALUE=1
CONFIG_PANIC_TIMEOUT=0
CONFIG_LOCKUP_DETECTOR=y
CONFIG_SOFTLOCKUP_DETECTOR=y
# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
# CONFIG_HARDLOCKUP_DETECTOR is not set
CONFIG_DETECT_HUNG_TASK=y
CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=480
# CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set
CONFIG_WQ_WATCHDOG=y
# CONFIG_TEST_LOCKUP is not set
# end of Debug Oops, Lockups and Hangs
#
# Scheduler Debugging
#
CONFIG_SCHED_DEBUG=y
CONFIG_SCHED_INFO=y
CONFIG_SCHEDSTATS=y
# end of Scheduler Debugging
CONFIG_DEBUG_TIMEKEEPING=y
#
# Lock Debugging (spinlocks, mutexes, etc...)
#
CONFIG_LOCK_DEBUGGING_SUPPORT=y
CONFIG_PROVE_LOCKING=y
# CONFIG_PROVE_RAW_LOCK_NESTING is not set
# CONFIG_LOCK_STAT is not set
CONFIG_DEBUG_RT_MUTEXES=y
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_DEBUG_WW_MUTEX_SLOWPATH=y
CONFIG_DEBUG_RWSEMS=y
CONFIG_DEBUG_LOCK_ALLOC=y
CONFIG_LOCKDEP=y
CONFIG_LOCKDEP_BITS=15
CONFIG_LOCKDEP_CHAINS_BITS=16
CONFIG_LOCKDEP_STACK_TRACE_BITS=19
CONFIG_LOCKDEP_STACK_TRACE_HASH_BITS=14
CONFIG_LOCKDEP_CIRCULAR_QUEUE_BITS=12
# CONFIG_DEBUG_LOCKDEP is not set
CONFIG_DEBUG_ATOMIC_SLEEP=y
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
CONFIG_LOCK_TORTURE_TEST=m
# CONFIG_WW_MUTEX_SELFTEST is not set
# CONFIG_SCF_TORTURE_TEST is not set
# end of Lock Debugging (spinlocks, mutexes, etc...)
CONFIG_TRACE_IRQFLAGS=y
CONFIG_TRACE_IRQFLAGS_NMI=y
CONFIG_DEBUG_IRQFLAGS=y
CONFIG_STACKTRACE=y
# CONFIG_WARN_ALL_UNSEEDED_RANDOM is not set
# CONFIG_DEBUG_KOBJECT is not set
#
# Debug kernel data structures
#
CONFIG_DEBUG_LIST=y
# CONFIG_DEBUG_PLIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
CONFIG_BUG_ON_DATA_CORRUPTION=y
# end of Debug kernel data structures
# CONFIG_DEBUG_CREDENTIALS is not set
#
# RCU Debugging
#
CONFIG_PROVE_RCU=y
# CONFIG_PROVE_RCU_LIST is not set
CONFIG_TORTURE_TEST=m
CONFIG_RCU_SCALE_TEST=m
CONFIG_RCU_TORTURE_TEST=m
# CONFIG_RCU_REF_SCALE_TEST is not set
CONFIG_RCU_CPU_STALL_TIMEOUT=21
CONFIG_RCU_EXP_CPU_STALL_TIMEOUT=0
CONFIG_RCU_TRACE=y
# CONFIG_RCU_EQS_DEBUG is not set
# end of RCU Debugging
# CONFIG_DEBUG_WQ_FORCE_RR_CPU is not set
# CONFIG_CPU_HOTPLUG_STATE_CONTROL is not set
CONFIG_LATENCYTOP=y
CONFIG_USER_STACKTRACE_SUPPORT=y
CONFIG_NOP_TRACER=y
CONFIG_HAVE_RETHOOK=y
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALLS=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_HAVE_BUILDTIME_MCOUNT_SORT=y
CONFIG_TRACE_CLOCK=y
CONFIG_RING_BUFFER=y
CONFIG_EVENT_TRACING=y
CONFIG_CONTEXT_SWITCH_TRACER=y
CONFIG_PREEMPTIRQ_TRACEPOINTS=y
CONFIG_TRACING=y
CONFIG_TRACING_SUPPORT=y
# CONFIG_FTRACE is not set
CONFIG_PROVIDE_OHCI1394_DMA_INIT=y
CONFIG_SAMPLES=y
# CONFIG_SAMPLE_AUXDISPLAY is not set
# CONFIG_SAMPLE_TRACE_EVENTS is not set
# CONFIG_SAMPLE_TRACE_CUSTOM_EVENTS is not set
# CONFIG_SAMPLE_TRACE_PRINTK is not set
# CONFIG_SAMPLE_TRACE_ARRAY is not set
CONFIG_SAMPLE_KOBJECT=y
# CONFIG_SAMPLE_HW_BREAKPOINT is not set
# CONFIG_SAMPLE_KFIFO is not set
# CONFIG_SAMPLE_RPMSG_CLIENT is not set
# CONFIG_SAMPLE_CONFIGFS is not set
# CONFIG_SAMPLE_CONNECTOR is not set
# CONFIG_SAMPLE_FANOTIFY_ERROR is not set
CONFIG_SAMPLE_HIDRAW=y
CONFIG_SAMPLE_LANDLOCK=y
CONFIG_SAMPLE_PIDFD=y
# CONFIG_SAMPLE_SECCOMP is not set
CONFIG_SAMPLE_TIMER=y
CONFIG_SAMPLE_UHID=y
# CONFIG_SAMPLE_VFIO_MDEV_MDPY_FB is not set
# CONFIG_SAMPLE_ANDROID_BINDERFS is not set
CONFIG_SAMPLE_VFS=y
CONFIG_SAMPLE_INTEL_MEI=y
CONFIG_SAMPLE_WATCHDOG=y
# CONFIG_SAMPLE_WATCH_QUEUE is not set
CONFIG_ARCH_HAS_DEVMEM_IS_ALLOWED=y
#
# x86 Debugging
#
CONFIG_TRACE_IRQFLAGS_NMI_SUPPORT=y
CONFIG_EARLY_PRINTK_USB=y
CONFIG_X86_VERBOSE_BOOTUP=y
CONFIG_EARLY_PRINTK=y
CONFIG_EARLY_PRINTK_DBGP=y
CONFIG_EARLY_PRINTK_USB_XDBC=y
# CONFIG_DEBUG_TLBFLUSH is not set
CONFIG_HAVE_MMIOTRACE_SUPPORT=y
# CONFIG_X86_DECODER_SELFTEST is not set
# CONFIG_IO_DELAY_0X80 is not set
CONFIG_IO_DELAY_0XED=y
# CONFIG_IO_DELAY_UDELAY is not set
# CONFIG_IO_DELAY_NONE is not set
# CONFIG_DEBUG_BOOT_PARAMS is not set
# CONFIG_CPA_DEBUG is not set
# CONFIG_DEBUG_ENTRY is not set
# CONFIG_DEBUG_NMI_SELFTEST is not set
CONFIG_X86_DEBUG_FPU=y
CONFIG_PUNIT_ATOM_DEBUG=y
CONFIG_UNWINDER_FRAME_POINTER=y
# end of x86 Debugging
#
# Kernel Testing and Coverage
#
# CONFIG_KUNIT is not set
# CONFIG_NOTIFIER_ERROR_INJECTION is not set
# CONFIG_FAULT_INJECTION is not set
CONFIG_CC_HAS_SANCOV_TRACE_PC=y
CONFIG_RUNTIME_TESTING_MENU=y
# CONFIG_LKDTM is not set
# CONFIG_TEST_MIN_HEAP is not set
# CONFIG_TEST_DIV64 is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_TEST_REF_TRACKER is not set
# CONFIG_RBTREE_TEST is not set
# CONFIG_REED_SOLOMON_TEST is not set
# CONFIG_INTERVAL_TREE_TEST is not set
# CONFIG_PERCPU_TEST is not set
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_TEST_HEXDUMP is not set
# CONFIG_STRING_SELFTEST is not set
# CONFIG_TEST_STRING_HELPERS is not set
# CONFIG_TEST_STRSCPY is not set
# CONFIG_TEST_KSTRTOX is not set
# CONFIG_TEST_PRINTF is not set
# CONFIG_TEST_SCANF is not set
# CONFIG_TEST_BITMAP is not set
# CONFIG_TEST_UUID is not set
# CONFIG_TEST_XARRAY is not set
# CONFIG_TEST_RHASHTABLE is not set
# CONFIG_TEST_SIPHASH is not set
# CONFIG_TEST_IDA is not set
# CONFIG_TEST_LKM is not set
# CONFIG_TEST_BITOPS is not set
# CONFIG_TEST_VMALLOC is not set
# CONFIG_TEST_USER_COPY is not set
# CONFIG_TEST_BPF is not set
# CONFIG_TEST_BLACKHOLE_DEV is not set
# CONFIG_FIND_BIT_BENCHMARK is not set
# CONFIG_TEST_FIRMWARE is not set
# CONFIG_TEST_SYSCTL is not set
# CONFIG_TEST_UDELAY is not set
# CONFIG_TEST_STATIC_KEYS is not set
# CONFIG_TEST_KMOD is not set
# CONFIG_TEST_MEMCAT_P is not set
# CONFIG_TEST_MEMINIT is not set
# CONFIG_TEST_FREE_PAGES is not set
# CONFIG_TEST_FPU is not set
# CONFIG_TEST_CLOCKSOURCE_WATCHDOG is not set
CONFIG_ARCH_USE_MEMTEST=y
# CONFIG_MEMTEST is not set
# end of Kernel Testing and Coverage
# end of Kernel hacking
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: [PATCH v2 07/12] locking/qspinlock: remove arch qspinlock_paravirt.h includes
2022-07-13 7:06 ` [PATCH v2 07/12] locking/qspinlock: remove arch qspinlock_paravirt.h includes Nicholas Piggin
2022-07-14 13:14 ` kernel test robot
@ 2022-07-14 16:21 ` kernel test robot
1 sibling, 0 replies; 20+ messages in thread
From: kernel test robot @ 2022-07-14 16:21 UTC (permalink / raw)
To: Nicholas Piggin
Cc: llvm, kbuild-all, Nicholas Piggin, Ingo Molnar, Will Deacon,
Waiman Long, Boqun Feng, linux-kernel @ vger . kernel . org
Hi Nicholas,
I love your patch! Perhaps something to improve:
[auto build test WARNING on tip/locking/core]
[also build test WARNING on tip/x86/core powerpc/next linus/master v5.19-rc6 next-20220714]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Nicholas-Piggin/locking-qspinlock-simplify-code-generation/20220713-151009
base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git eae6d58d67d9739be5f7ae2dbead1d0ef6528243
config: i386-randconfig-a004 (https://download.01.org/0day-ci/archive/20220715/202207150003.29YhgBtE-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 5e61b9c556267086ef9b743a0b57df302eef831b)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/intel-lab-lkp/linux/commit/87679eeea9f1939c252d16df3ac6a01bf9daaa60
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Nicholas-Piggin/locking-qspinlock-simplify-code-generation/20220713-151009
git checkout 87679eeea9f1939c252d16df3ac6a01bf9daaa60
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash kernel/locking/
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
In file included from kernel/locking/qspinlock.c:29:
kernel/locking/qspinlock_stat.h:36:9: warning: no previous prototype for function 'lockevent_read' [-Wmissing-prototypes]
ssize_t lockevent_read(struct file *file, char __user *user_buf,
^
kernel/locking/qspinlock_stat.h:36:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
ssize_t lockevent_read(struct file *file, char __user *user_buf,
^
static
kernel/locking/qspinlock.c:705:1: warning: no previous prototype for function '__pv_queued_spin_unlock_slowpath' [-Wmissing-prototypes]
__pv_queued_spin_unlock_slowpath(struct qspinlock *lock, u8 locked)
^
kernel/locking/qspinlock.c:704:11: note: declare 'static' if the function is not intended to be used outside of this translation unit
__visible void
^
static
>> kernel/locking/qspinlock.c:749:16: warning: no previous prototype for function '__pv_queued_spin_unlock' [-Wmissing-prototypes]
__visible void __pv_queued_spin_unlock(struct qspinlock *lock)
^
kernel/locking/qspinlock.c:749:11: note: declare 'static' if the function is not intended to be used outside of this translation unit
__visible void __pv_queued_spin_unlock(struct qspinlock *lock)
^
static
3 warnings generated.
vim +/__pv_queued_spin_unlock +749 kernel/locking/qspinlock.c
91668ee1ed703d7 Nicholas Piggin 2022-07-13 699
91668ee1ed703d7 Nicholas Piggin 2022-07-13 700 /*
91668ee1ed703d7 Nicholas Piggin 2022-07-13 701 * PV versions of the unlock fastpath and slowpath functions to be used
91668ee1ed703d7 Nicholas Piggin 2022-07-13 702 * instead of queued_spin_unlock().
91668ee1ed703d7 Nicholas Piggin 2022-07-13 703 */
91668ee1ed703d7 Nicholas Piggin 2022-07-13 704 __visible void
91668ee1ed703d7 Nicholas Piggin 2022-07-13 @705 __pv_queued_spin_unlock_slowpath(struct qspinlock *lock, u8 locked)
91668ee1ed703d7 Nicholas Piggin 2022-07-13 706 {
91668ee1ed703d7 Nicholas Piggin 2022-07-13 707 struct qnode *node;
91668ee1ed703d7 Nicholas Piggin 2022-07-13 708
91668ee1ed703d7 Nicholas Piggin 2022-07-13 709 if (unlikely(locked != _Q_SLOW_VAL)) {
91668ee1ed703d7 Nicholas Piggin 2022-07-13 710 WARN(!debug_locks_silent,
91668ee1ed703d7 Nicholas Piggin 2022-07-13 711 "pvqspinlock: lock 0x%lx has corrupted value 0x%x!\n",
91668ee1ed703d7 Nicholas Piggin 2022-07-13 712 (unsigned long)lock, atomic_read(&lock->val));
91668ee1ed703d7 Nicholas Piggin 2022-07-13 713 return;
91668ee1ed703d7 Nicholas Piggin 2022-07-13 714 }
91668ee1ed703d7 Nicholas Piggin 2022-07-13 715
91668ee1ed703d7 Nicholas Piggin 2022-07-13 716 /*
91668ee1ed703d7 Nicholas Piggin 2022-07-13 717 * A failed cmpxchg doesn't provide any memory-ordering guarantees,
91668ee1ed703d7 Nicholas Piggin 2022-07-13 718 * so we need a barrier to order the read of the node data in
91668ee1ed703d7 Nicholas Piggin 2022-07-13 719 * pv_unhash *after* we've read the lock being _Q_SLOW_VAL.
91668ee1ed703d7 Nicholas Piggin 2022-07-13 720 *
91668ee1ed703d7 Nicholas Piggin 2022-07-13 721 * Matches the cmpxchg() in pv_wait_head_or_lock() setting _Q_SLOW_VAL.
91668ee1ed703d7 Nicholas Piggin 2022-07-13 722 */
91668ee1ed703d7 Nicholas Piggin 2022-07-13 723 smp_rmb();
91668ee1ed703d7 Nicholas Piggin 2022-07-13 724
91668ee1ed703d7 Nicholas Piggin 2022-07-13 725 /*
91668ee1ed703d7 Nicholas Piggin 2022-07-13 726 * Since the above failed to release, this must be the SLOW path.
91668ee1ed703d7 Nicholas Piggin 2022-07-13 727 * Therefore start by looking up the blocked node and unhashing it.
91668ee1ed703d7 Nicholas Piggin 2022-07-13 728 */
91668ee1ed703d7 Nicholas Piggin 2022-07-13 729 node = pv_unhash(lock);
91668ee1ed703d7 Nicholas Piggin 2022-07-13 730
91668ee1ed703d7 Nicholas Piggin 2022-07-13 731 /*
91668ee1ed703d7 Nicholas Piggin 2022-07-13 732 * Now that we have a reference to the (likely) blocked qnode,
91668ee1ed703d7 Nicholas Piggin 2022-07-13 733 * release the lock.
91668ee1ed703d7 Nicholas Piggin 2022-07-13 734 */
91668ee1ed703d7 Nicholas Piggin 2022-07-13 735 smp_store_release(&lock->locked, 0);
91668ee1ed703d7 Nicholas Piggin 2022-07-13 736
91668ee1ed703d7 Nicholas Piggin 2022-07-13 737 /*
91668ee1ed703d7 Nicholas Piggin 2022-07-13 738 * At this point the memory pointed at by lock can be freed/reused,
91668ee1ed703d7 Nicholas Piggin 2022-07-13 739 * however we can still use the qnode to kick the CPU.
91668ee1ed703d7 Nicholas Piggin 2022-07-13 740 * The other vCPU may not really be halted, but kicking an active
91668ee1ed703d7 Nicholas Piggin 2022-07-13 741 * vCPU is harmless other than the additional latency in completing
91668ee1ed703d7 Nicholas Piggin 2022-07-13 742 * the unlock.
91668ee1ed703d7 Nicholas Piggin 2022-07-13 743 */
91668ee1ed703d7 Nicholas Piggin 2022-07-13 744 lockevent_inc(pv_kick_unlock);
91668ee1ed703d7 Nicholas Piggin 2022-07-13 745 pv_kick(node->cpu);
91668ee1ed703d7 Nicholas Piggin 2022-07-13 746 }
91668ee1ed703d7 Nicholas Piggin 2022-07-13 747
91668ee1ed703d7 Nicholas Piggin 2022-07-13 748 #ifndef __pv_queued_spin_unlock
91668ee1ed703d7 Nicholas Piggin 2022-07-13 @749 __visible void __pv_queued_spin_unlock(struct qspinlock *lock)
91668ee1ed703d7 Nicholas Piggin 2022-07-13 750 {
91668ee1ed703d7 Nicholas Piggin 2022-07-13 751 u8 locked;
91668ee1ed703d7 Nicholas Piggin 2022-07-13 752
91668ee1ed703d7 Nicholas Piggin 2022-07-13 753 /*
91668ee1ed703d7 Nicholas Piggin 2022-07-13 754 * We must not unlock if SLOW, because in that case we must first
91668ee1ed703d7 Nicholas Piggin 2022-07-13 755 * unhash. Otherwise it would be possible to have multiple @lock
91668ee1ed703d7 Nicholas Piggin 2022-07-13 756 * entries, which would be BAD.
91668ee1ed703d7 Nicholas Piggin 2022-07-13 757 */
91668ee1ed703d7 Nicholas Piggin 2022-07-13 758 locked = cmpxchg_release(&lock->locked, _Q_LOCKED_VAL, 0);
91668ee1ed703d7 Nicholas Piggin 2022-07-13 759 if (likely(locked == _Q_LOCKED_VAL))
91668ee1ed703d7 Nicholas Piggin 2022-07-13 760 return;
91668ee1ed703d7 Nicholas Piggin 2022-07-13 761
91668ee1ed703d7 Nicholas Piggin 2022-07-13 762 __pv_queued_spin_unlock_slowpath(lock, locked);
91668ee1ed703d7 Nicholas Piggin 2022-07-13 763 }
87679eeea9f1939 Nicholas Piggin 2022-07-13 764 EXPORT_SYMBOL(__pv_queued_spin_unlock);
91668ee1ed703d7 Nicholas Piggin 2022-07-13 765 #endif
91668ee1ed703d7 Nicholas Piggin 2022-07-13 766
--
0-DAY CI Kernel Test Service
https://01.org/lkp
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: [PATCH v2 06/12] locking/qspinlock: merge qspinlock_paravirt.h into qspinlock.c
2022-07-13 7:06 ` [PATCH v2 06/12] locking/qspinlock: merge qspinlock_paravirt.h into qspinlock.c Nicholas Piggin
2022-07-14 14:16 ` kernel test robot
@ 2022-07-14 16:42 ` kernel test robot
2022-07-14 20:28 ` kernel test robot
2 siblings, 0 replies; 20+ messages in thread
From: kernel test robot @ 2022-07-14 16:42 UTC (permalink / raw)
To: Nicholas Piggin
Cc: kbuild-all, Nicholas Piggin, Ingo Molnar, Will Deacon,
Waiman Long, Boqun Feng, linux-kernel @ vger . kernel . org
Hi Nicholas,
I love your patch! Perhaps something to improve:
[auto build test WARNING on tip/locking/core]
[also build test WARNING on tip/x86/core powerpc/next linus/master v5.19-rc6 next-20220714]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Nicholas-Piggin/locking-qspinlock-simplify-code-generation/20220713-151009
base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git eae6d58d67d9739be5f7ae2dbead1d0ef6528243
config: x86_64-rhel-8.3-func (https://download.01.org/0day-ci/archive/20220715/202207150022.DkhjTAWE-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-3) 11.3.0
reproduce (this is a W=1 build):
# https://github.com/intel-lab-lkp/linux/commit/91668ee1ed703d7ea84e314136dc732da05ec9e7
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Nicholas-Piggin/locking-qspinlock-simplify-code-generation/20220713-151009
git checkout 91668ee1ed703d7ea84e314136dc732da05ec9e7
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/nvme/target/ fs/xfs/ kernel/locking/
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
kernel/locking/qspinlock.c: In function 'pv_wait_node':
>> kernel/locking/qspinlock.c:513:14: warning: variable 'wait_early' set but not used [-Wunused-but-set-variable]
513 | bool wait_early;
| ^~~~~~~~~~
kernel/locking/qspinlock.c: At top level:
>> kernel/locking/qspinlock.c:705:1: warning: no previous prototype for '__pv_queued_spin_unlock_slowpath' [-Wmissing-prototypes]
705 | __pv_queued_spin_unlock_slowpath(struct qspinlock *lock, u8 locked)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
vim +/wait_early +513 kernel/locking/qspinlock.c
504
505 /*
506 * Wait for node->locked to become true, halt the vcpu after a short spin.
507 * pv_kick_node() is used to set _Q_SLOW_VAL and fill in hash table on its
508 * behalf.
509 */
510 static void pv_wait_node(struct qnode *node, struct qnode *prev)
511 {
512 int loop;
> 513 bool wait_early;
514
515 for (;;) {
516 for (wait_early = false, loop = SPIN_THRESHOLD; loop; loop--) {
517 if (READ_ONCE(node->locked))
518 return;
519 if (pv_wait_early(prev, loop)) {
520 wait_early = true;
521 break;
522 }
523 cpu_relax();
524 }
525
526 /*
527 * Order node->state vs node->locked thusly:
528 *
529 * [S] node->state = vcpu_halted [S] next->locked = 1
530 * MB MB
531 * [L] node->locked [RmW] node->state = vcpu_hashed
532 *
533 * Matches the cmpxchg() from pv_kick_node().
534 */
535 smp_store_mb(node->state, vcpu_halted);
536
537 if (!READ_ONCE(node->locked)) {
538 lockevent_inc(pv_wait_node);
539 lockevent_cond_inc(pv_wait_early, wait_early);
540 pv_wait(&node->state, vcpu_halted);
541 }
542
543 /*
544 * If pv_kick_node() changed us to vcpu_hashed, retain that
545 * value so that pv_wait_head_or_lock() knows to not also try
546 * to hash this lock.
547 */
548 cmpxchg(&node->state, vcpu_halted, vcpu_running);
549
550 /*
551 * If the locked flag is still not set after wakeup, it is a
552 * spurious wakeup and the vCPU should wait again. However,
553 * there is a pretty high overhead for CPU halting and kicking.
554 * So it is better to spin for a while in the hope that the
555 * MCS lock will be released soon.
556 */
557 lockevent_cond_inc(pv_spurious_wakeup,
558 !READ_ONCE(node->locked));
559 }
560
561 /*
562 * By now our node->locked should be 1 and our caller will not actually
563 * spin-wait for it. We do however rely on our caller to do a
564 * load-acquire for us.
565 */
566 }
567
568 /*
569 * Called after setting next->locked = 1 when we're the lock owner.
570 *
571 * Instead of waking the waiters stuck in pv_wait_node() advance their state
572 * such that they're waiting in pv_wait_head_or_lock(), this avoids a
573 * wake/sleep cycle.
574 */
575 static void pv_kick_node(struct qspinlock *lock, struct qnode *node)
576 {
577 /*
578 * If the vCPU is indeed halted, advance its state to match that of
579 * pv_wait_node(). If OTOH this fails, the vCPU was running and will
580 * observe its next->locked value and advance itself.
581 *
582 * Matches with smp_store_mb() and cmpxchg() in pv_wait_node()
583 *
584 * The write to next->locked in arch_mcs_spin_unlock_contended()
585 * must be ordered before the read of node->state in the cmpxchg()
586 * below for the code to work correctly. To guarantee full ordering
587 * irrespective of the success or failure of the cmpxchg(),
588 * a relaxed version with explicit barrier is used. The control
589 * dependency will order the reading of node->state before any
590 * subsequent writes.
591 */
592 smp_mb__before_atomic();
593 if (cmpxchg_relaxed(&node->state, vcpu_halted, vcpu_hashed)
594 != vcpu_halted)
595 return;
596
597 /*
598 * Put the lock into the hash table and set the _Q_SLOW_VAL.
599 *
600 * As this is the same vCPU that will check the _Q_SLOW_VAL value and
601 * the hash table later on at unlock time, no atomic instruction is
602 * needed.
603 */
604 WRITE_ONCE(lock->locked, _Q_SLOW_VAL);
605 (void)pv_hash(lock, node);
606 }
607
608 /*
609 * Wait for l->locked to become clear and acquire the lock;
610 * halt the vcpu after a short spin.
611 * __pv_queued_spin_unlock() will wake us.
612 *
613 * The current value of the lock will be returned for additional processing.
614 */
615 static u32
616 pv_wait_head_or_lock(struct qspinlock *lock, struct qnode *node)
617 {
618 struct qspinlock **lp = NULL;
619 int waitcnt = 0;
620 int loop;
621
622 /*
623 * If pv_kick_node() already advanced our state, we don't need to
624 * insert ourselves into the hash table anymore.
625 */
626 if (READ_ONCE(node->state) == vcpu_hashed)
627 lp = (struct qspinlock **)1;
628
629 /*
630 * Tracking # of slowpath locking operations
631 */
632 lockevent_inc(lock_slowpath);
633
634 for (;; waitcnt++) {
635 /*
636 * Set correct vCPU state to be used by queue node wait-early
637 * mechanism.
638 */
639 WRITE_ONCE(node->state, vcpu_running);
640
641 /*
642 * Set the pending bit in the active lock spinning loop to
643 * disable lock stealing before attempting to acquire the lock.
644 */
645 set_pending(lock);
646 for (loop = SPIN_THRESHOLD; loop; loop--) {
647 if (trylock_clear_pending(lock))
648 goto gotlock;
649 cpu_relax();
650 }
651 clear_pending(lock);
652
653
654 if (!lp) { /* ONCE */
655 lp = pv_hash(lock, node);
656
657 /*
658 * We must hash before setting _Q_SLOW_VAL, such that
659 * when we observe _Q_SLOW_VAL in __pv_queued_spin_unlock()
660 * we'll be sure to be able to observe our hash entry.
661 *
662 * [S] <hash> [Rmw] l->locked == _Q_SLOW_VAL
663 * MB RMB
664 * [RmW] l->locked = _Q_SLOW_VAL [L] <unhash>
665 *
666 * Matches the smp_rmb() in __pv_queued_spin_unlock().
667 */
668 if (xchg(&lock->locked, _Q_SLOW_VAL) == 0) {
669 /*
670 * The lock was free and now we own the lock.
671 * Change the lock value back to _Q_LOCKED_VAL
672 * and unhash the table.
673 */
674 WRITE_ONCE(lock->locked, _Q_LOCKED_VAL);
675 WRITE_ONCE(*lp, NULL);
676 goto gotlock;
677 }
678 }
679 WRITE_ONCE(node->state, vcpu_hashed);
680 lockevent_inc(pv_wait_head);
681 lockevent_cond_inc(pv_wait_again, waitcnt);
682 pv_wait(&lock->locked, _Q_SLOW_VAL);
683
684 /*
685 * Because of lock stealing, the queue head vCPU may not be
686 * able to acquire the lock before it has to wait again.
687 */
688 }
689
690 /*
691 * The cmpxchg() or xchg() call before coming here provides the
692 * acquire semantics for locking. The dummy ORing of _Q_LOCKED_VAL
693 * here is to indicate to the compiler that the value will always
694 * be nozero to enable better code optimization.
695 */
696 gotlock:
697 return (u32)(atomic_read(&lock->val) | _Q_LOCKED_VAL);
698 }
699
700 /*
701 * PV versions of the unlock fastpath and slowpath functions to be used
702 * instead of queued_spin_unlock().
703 */
704 __visible void
> 705 __pv_queued_spin_unlock_slowpath(struct qspinlock *lock, u8 locked)
706 {
707 struct qnode *node;
708
709 if (unlikely(locked != _Q_SLOW_VAL)) {
710 WARN(!debug_locks_silent,
711 "pvqspinlock: lock 0x%lx has corrupted value 0x%x!\n",
712 (unsigned long)lock, atomic_read(&lock->val));
713 return;
714 }
715
716 /*
717 * A failed cmpxchg doesn't provide any memory-ordering guarantees,
718 * so we need a barrier to order the read of the node data in
719 * pv_unhash *after* we've read the lock being _Q_SLOW_VAL.
720 *
721 * Matches the cmpxchg() in pv_wait_head_or_lock() setting _Q_SLOW_VAL.
722 */
723 smp_rmb();
724
725 /*
726 * Since the above failed to release, this must be the SLOW path.
727 * Therefore start by looking up the blocked node and unhashing it.
728 */
729 node = pv_unhash(lock);
730
731 /*
732 * Now that we have a reference to the (likely) blocked qnode,
733 * release the lock.
734 */
735 smp_store_release(&lock->locked, 0);
736
737 /*
738 * At this point the memory pointed at by lock can be freed/reused,
739 * however we can still use the qnode to kick the CPU.
740 * The other vCPU may not really be halted, but kicking an active
741 * vCPU is harmless other than the additional latency in completing
742 * the unlock.
743 */
744 lockevent_inc(pv_kick_unlock);
745 pv_kick(node->cpu);
746 }
747
--
0-DAY CI Kernel Test Service
https://01.org/lkp
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: [PATCH v2 06/12] locking/qspinlock: merge qspinlock_paravirt.h into qspinlock.c
2022-07-13 7:06 ` [PATCH v2 06/12] locking/qspinlock: merge qspinlock_paravirt.h into qspinlock.c Nicholas Piggin
2022-07-14 14:16 ` kernel test robot
2022-07-14 16:42 ` kernel test robot
@ 2022-07-14 20:28 ` kernel test robot
2 siblings, 0 replies; 20+ messages in thread
From: kernel test robot @ 2022-07-14 20:28 UTC (permalink / raw)
To: Nicholas Piggin
Cc: llvm, kbuild-all, Nicholas Piggin, Ingo Molnar, Will Deacon,
Waiman Long, Boqun Feng, linux-kernel @ vger . kernel . org
Hi Nicholas,
I love your patch! Perhaps something to improve:
[auto build test WARNING on tip/locking/core]
[also build test WARNING on tip/x86/core powerpc/next linus/master v5.19-rc6 next-20220714]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Nicholas-Piggin/locking-qspinlock-simplify-code-generation/20220713-151009
base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git eae6d58d67d9739be5f7ae2dbead1d0ef6528243
config: x86_64-randconfig-a003 (https://download.01.org/0day-ci/archive/20220715/202207150452.zk1w58X4-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 5e61b9c556267086ef9b743a0b57df302eef831b)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/intel-lab-lkp/linux/commit/91668ee1ed703d7ea84e314136dc732da05ec9e7
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Nicholas-Piggin/locking-qspinlock-simplify-code-generation/20220713-151009
git checkout 91668ee1ed703d7ea84e314136dc732da05ec9e7
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash kernel/locking/
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
kernel/locking/qspinlock.c:513:7: warning: variable 'wait_early' set but not used [-Wunused-but-set-variable]
bool wait_early;
^
>> kernel/locking/qspinlock.c:619:6: warning: variable 'waitcnt' set but not used [-Wunused-but-set-variable]
int waitcnt = 0;
^
>> kernel/locking/qspinlock.c:705:1: warning: no previous prototype for function '__pv_queued_spin_unlock_slowpath' [-Wmissing-prototypes]
__pv_queued_spin_unlock_slowpath(struct qspinlock *lock, u8 locked)
^
kernel/locking/qspinlock.c:704:11: note: declare 'static' if the function is not intended to be used outside of this translation unit
__visible void
^
static
3 warnings generated.
vim +/waitcnt +619 kernel/locking/qspinlock.c
607
608 /*
609 * Wait for l->locked to become clear and acquire the lock;
610 * halt the vcpu after a short spin.
611 * __pv_queued_spin_unlock() will wake us.
612 *
613 * The current value of the lock will be returned for additional processing.
614 */
615 static u32
616 pv_wait_head_or_lock(struct qspinlock *lock, struct qnode *node)
617 {
618 struct qspinlock **lp = NULL;
> 619 int waitcnt = 0;
620 int loop;
621
622 /*
623 * If pv_kick_node() already advanced our state, we don't need to
624 * insert ourselves into the hash table anymore.
625 */
626 if (READ_ONCE(node->state) == vcpu_hashed)
627 lp = (struct qspinlock **)1;
628
629 /*
630 * Tracking # of slowpath locking operations
631 */
632 lockevent_inc(lock_slowpath);
633
634 for (;; waitcnt++) {
635 /*
636 * Set correct vCPU state to be used by queue node wait-early
637 * mechanism.
638 */
639 WRITE_ONCE(node->state, vcpu_running);
640
641 /*
642 * Set the pending bit in the active lock spinning loop to
643 * disable lock stealing before attempting to acquire the lock.
644 */
645 set_pending(lock);
646 for (loop = SPIN_THRESHOLD; loop; loop--) {
647 if (trylock_clear_pending(lock))
648 goto gotlock;
649 cpu_relax();
650 }
651 clear_pending(lock);
652
653
654 if (!lp) { /* ONCE */
655 lp = pv_hash(lock, node);
656
657 /*
658 * We must hash before setting _Q_SLOW_VAL, such that
659 * when we observe _Q_SLOW_VAL in __pv_queued_spin_unlock()
660 * we'll be sure to be able to observe our hash entry.
661 *
662 * [S] <hash> [Rmw] l->locked == _Q_SLOW_VAL
663 * MB RMB
664 * [RmW] l->locked = _Q_SLOW_VAL [L] <unhash>
665 *
666 * Matches the smp_rmb() in __pv_queued_spin_unlock().
667 */
668 if (xchg(&lock->locked, _Q_SLOW_VAL) == 0) {
669 /*
670 * The lock was free and now we own the lock.
671 * Change the lock value back to _Q_LOCKED_VAL
672 * and unhash the table.
673 */
674 WRITE_ONCE(lock->locked, _Q_LOCKED_VAL);
675 WRITE_ONCE(*lp, NULL);
676 goto gotlock;
677 }
678 }
679 WRITE_ONCE(node->state, vcpu_hashed);
680 lockevent_inc(pv_wait_head);
681 lockevent_cond_inc(pv_wait_again, waitcnt);
682 pv_wait(&lock->locked, _Q_SLOW_VAL);
683
684 /*
685 * Because of lock stealing, the queue head vCPU may not be
686 * able to acquire the lock before it has to wait again.
687 */
688 }
689
690 /*
691 * The cmpxchg() or xchg() call before coming here provides the
692 * acquire semantics for locking. The dummy ORing of _Q_LOCKED_VAL
693 * here is to indicate to the compiler that the value will always
694 * be nozero to enable better code optimization.
695 */
696 gotlock:
697 return (u32)(atomic_read(&lock->val) | _Q_LOCKED_VAL);
698 }
699
700 /*
701 * PV versions of the unlock fastpath and slowpath functions to be used
702 * instead of queued_spin_unlock().
703 */
704 __visible void
> 705 __pv_queued_spin_unlock_slowpath(struct qspinlock *lock, u8 locked)
706 {
707 struct qnode *node;
708
709 if (unlikely(locked != _Q_SLOW_VAL)) {
710 WARN(!debug_locks_silent,
711 "pvqspinlock: lock 0x%lx has corrupted value 0x%x!\n",
712 (unsigned long)lock, atomic_read(&lock->val));
713 return;
714 }
715
716 /*
717 * A failed cmpxchg doesn't provide any memory-ordering guarantees,
718 * so we need a barrier to order the read of the node data in
719 * pv_unhash *after* we've read the lock being _Q_SLOW_VAL.
720 *
721 * Matches the cmpxchg() in pv_wait_head_or_lock() setting _Q_SLOW_VAL.
722 */
723 smp_rmb();
724
725 /*
726 * Since the above failed to release, this must be the SLOW path.
727 * Therefore start by looking up the blocked node and unhashing it.
728 */
729 node = pv_unhash(lock);
730
731 /*
732 * Now that we have a reference to the (likely) blocked qnode,
733 * release the lock.
734 */
735 smp_store_release(&lock->locked, 0);
736
737 /*
738 * At this point the memory pointed at by lock can be freed/reused,
739 * however we can still use the qnode to kick the CPU.
740 * The other vCPU may not really be halted, but kicking an active
741 * vCPU is harmless other than the additional latency in completing
742 * the unlock.
743 */
744 lockevent_inc(pv_kick_unlock);
745 pv_kick(node->cpu);
746 }
747
--
0-DAY CI Kernel Test Service
https://01.org/lkp
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: [PATCH v2 06/12] locking/qspinlock: merge qspinlock_paravirt.h into qspinlock.c
2022-07-14 14:16 ` kernel test robot
@ 2022-07-29 3:49 ` Nicholas Piggin
0 siblings, 0 replies; 20+ messages in thread
From: Nicholas Piggin @ 2022-07-29 3:49 UTC (permalink / raw)
To: kernel test robot
Cc: Boqun Feng, kbuild-all, linux-kernel @ vger . kernel . org, llvm,
Waiman Long, Ingo Molnar, Will Deacon
Excerpts from kernel test robot's message of July 15, 2022 12:16 am:
> Hi Nicholas,
>
> I love your patch! Perhaps something to improve:
>
> [auto build test WARNING on tip/locking/core]
> [also build test WARNING on tip/x86/core powerpc/next linus/master v5.19-rc6 next-20220714]
> [If your patch is applied to the wrong git tree, kindly drop us a note.
> And when submitting patch, we suggest to use '--base' as documented in
> https://git-scm.com/docs/git-format-patch#_base_tree_information]
>
> url: https://github.com/intel-lab-lkp/linux/commits/Nicholas-Piggin/locking-qspinlock-simplify-code-generation/20220713-151009
> base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git eae6d58d67d9739be5f7ae2dbead1d0ef6528243
> config: i386-randconfig-a004
> compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 5e61b9c556267086ef9b743a0b57df302eef831b)
> reproduce (this is a W=1 build):
> wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
> chmod +x ~/bin/make.cross
> # https://github.com/intel-lab-lkp/linux/commit/91668ee1ed703d7ea84e314136dc732da05ec9e7
> git remote add linux-review https://github.com/intel-lab-lkp/linux
> git fetch --no-tags linux-review Nicholas-Piggin/locking-qspinlock-simplify-code-generation/20220713-151009
> git checkout 91668ee1ed703d7ea84e314136dc732da05ec9e7
> # save the config file
> mkdir build_dir && cp config build_dir/.config
> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash kernel/locking/
>
> If you fix the issue, kindly add following tag where applicable
> Reported-by: kernel test robot <lkp@intel.com>
>
> All warnings (new ones prefixed by >>):
>
> In file included from kernel/locking/qspinlock.c:29:
> kernel/locking/qspinlock_stat.h:36:9: warning: no previous prototype for function 'lockevent_read' [-Wmissing-prototypes]
> ssize_t lockevent_read(struct file *file, char __user *user_buf,
> ^
> kernel/locking/qspinlock_stat.h:36:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
> ssize_t lockevent_read(struct file *file, char __user *user_buf,
> ^
> static
>>> kernel/locking/qspinlock.c:705:1: warning: no previous prototype for function '__pv_queued_spin_unlock_slowpath' [-Wmissing-prototypes]
> __pv_queued_spin_unlock_slowpath(struct qspinlock *lock, u8 locked)
> ^
> kernel/locking/qspinlock.c:704:11: note: declare 'static' if the function is not intended to be used outside of this translation unit
> __visible void
> ^
> static
> 2 warnings generated.
These aren't new warnings btw, just existing W=1 warnings in code that
moved.
Thanks,
Nick
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: [PATCH v2 06/12] locking/qspinlock: merge qspinlock_paravirt.h into qspinlock.c
@ 2022-07-29 3:49 ` Nicholas Piggin
0 siblings, 0 replies; 20+ messages in thread
From: Nicholas Piggin @ 2022-07-29 3:49 UTC (permalink / raw)
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 2901 bytes --]
Excerpts from kernel test robot's message of July 15, 2022 12:16 am:
> Hi Nicholas,
>
> I love your patch! Perhaps something to improve:
>
> [auto build test WARNING on tip/locking/core]
> [also build test WARNING on tip/x86/core powerpc/next linus/master v5.19-rc6 next-20220714]
> [If your patch is applied to the wrong git tree, kindly drop us a note.
> And when submitting patch, we suggest to use '--base' as documented in
> https://git-scm.com/docs/git-format-patch#_base_tree_information]
>
> url: https://github.com/intel-lab-lkp/linux/commits/Nicholas-Piggin/locking-qspinlock-simplify-code-generation/20220713-151009
> base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git eae6d58d67d9739be5f7ae2dbead1d0ef6528243
> config: i386-randconfig-a004
> compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 5e61b9c556267086ef9b743a0b57df302eef831b)
> reproduce (this is a W=1 build):
> wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
> chmod +x ~/bin/make.cross
> # https://github.com/intel-lab-lkp/linux/commit/91668ee1ed703d7ea84e314136dc732da05ec9e7
> git remote add linux-review https://github.com/intel-lab-lkp/linux
> git fetch --no-tags linux-review Nicholas-Piggin/locking-qspinlock-simplify-code-generation/20220713-151009
> git checkout 91668ee1ed703d7ea84e314136dc732da05ec9e7
> # save the config file
> mkdir build_dir && cp config build_dir/.config
> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash kernel/locking/
>
> If you fix the issue, kindly add following tag where applicable
> Reported-by: kernel test robot <lkp@intel.com>
>
> All warnings (new ones prefixed by >>):
>
> In file included from kernel/locking/qspinlock.c:29:
> kernel/locking/qspinlock_stat.h:36:9: warning: no previous prototype for function 'lockevent_read' [-Wmissing-prototypes]
> ssize_t lockevent_read(struct file *file, char __user *user_buf,
> ^
> kernel/locking/qspinlock_stat.h:36:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
> ssize_t lockevent_read(struct file *file, char __user *user_buf,
> ^
> static
>>> kernel/locking/qspinlock.c:705:1: warning: no previous prototype for function '__pv_queued_spin_unlock_slowpath' [-Wmissing-prototypes]
> __pv_queued_spin_unlock_slowpath(struct qspinlock *lock, u8 locked)
> ^
> kernel/locking/qspinlock.c:704:11: note: declare 'static' if the function is not intended to be used outside of this translation unit
> __visible void
> ^
> static
> 2 warnings generated.
These aren't new warnings btw, just existing W=1 warnings in code that
moved.
Thanks,
Nick
^ permalink raw reply [flat|nested] 20+ messages in thread
end of thread, other threads:[~2022-07-29 3:49 UTC | newest]
Thread overview: 20+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-07-13 7:06 [PATCH v2 00/12] locking/qspinlock: simplify code generation Nicholas Piggin
2022-07-13 7:06 ` [PATCH v2 01/12] locking/qspinlock: remove pv_node abstraction Nicholas Piggin
2022-07-13 7:06 ` [PATCH v2 02/12] locking/qspinlock: inline mcs_spinlock functions into qspinlock Nicholas Piggin
2022-07-13 7:06 ` [PATCH v2 03/12] locking/qspinlock: split common mcs queueing code into its own function Nicholas Piggin
2022-07-13 7:06 ` [PATCH v2 04/12] locking/qspinlock: move pv lock word helpers into qspinlock.c Nicholas Piggin
2022-07-13 7:06 ` [PATCH v2 05/12] locking/qspinlock: be less clever with the preprocessor Nicholas Piggin
2022-07-13 7:06 ` [PATCH v2 06/12] locking/qspinlock: merge qspinlock_paravirt.h into qspinlock.c Nicholas Piggin
2022-07-14 14:16 ` kernel test robot
2022-07-29 3:49 ` Nicholas Piggin
2022-07-29 3:49 ` Nicholas Piggin
2022-07-14 16:42 ` kernel test robot
2022-07-14 20:28 ` kernel test robot
2022-07-13 7:06 ` [PATCH v2 07/12] locking/qspinlock: remove arch qspinlock_paravirt.h includes Nicholas Piggin
2022-07-14 13:14 ` kernel test robot
2022-07-14 16:21 ` kernel test robot
2022-07-13 7:07 ` [PATCH v2 08/12] locking/qspinlock: stop renaming queued_spin_lock_slowpath to native_queued_spin_lock_slowpath Nicholas Piggin
2022-07-13 7:07 ` [PATCH v2 09/12] locking/qspinlock: rename __pv_init_lock_hash to pv_spinlocks_init Nicholas Piggin
2022-07-13 7:07 ` [PATCH v2 10/12] locking/qspinlock: paravirt use simple trylock in case idx overflows Nicholas Piggin
2022-07-13 7:07 ` [PATCH v2 11/12] locking/qspinlock: separate pv_wait_node from the non-paravirt path Nicholas Piggin
2022-07-13 7:07 ` [PATCH v2 12/12] locking/qspinlock: simplify pv_wait_head_or_lock calling scheme Nicholas Piggin
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