From: "Alastair D'Silva" <alastair@au1.ibm.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org,
mikey@neuling.org, vaibhav@linux.vnet.ibm.com,
aneesh.kumar@linux.vnet.ibm.com, malat@debian.org,
felix@linux.vnet.ibm.com, pombredanne@nexb.com,
sukadev@linux.vnet.ibm.com, npiggin@gmail.com,
gregkh@linuxfoundation.org, arnd@arndb.de,
andrew.donnellan@au1.ibm.com, fbarrat@linux.vnet.ibm.com,
corbet@lwn.net, "Alastair D'Silva" <alastair@d-silva.org>
Subject: [PATCH v5 0/7] ocxl: Implement Power9 as_notify/wait for OpenCAPI
Date: Fri, 11 May 2018 16:12:56 +1000 [thread overview]
Message-ID: <20180511061303.10728-1-alastair@au1.ibm.com> (raw)
From: Alastair D'Silva <alastair@d-silva.org>
The Power 9 as_notify/wait feature provides a lower latency way to
signal a thread that work is complete. This series enables the use of
this feature from OpenCAPI adapters, as well as addressing a potential
starvation issue when allocating thread IDs.
Changelog:
v5:
Remove stray brace
Fix bad rename of ocxl_ioctl_platform to ocxl_ioctl_features
v4:
Remove the "unique" statement from the set_thread_tidr function and
move the text explaining why it is safe from the commit message
to the function description
v3:
Fix references to POWER9
Remove stray whitespace edit from docs
Add more details to commit message for "use task_pid_nr()"
Retitle patch 6 to indicate OCXL rather than CPU features
v2:
Rename get_platform IOCTL to get_features
Move stray edit from patch 1 to patch 3
Alastair D'Silva (7):
powerpc: Add TIDR CPU feature for POWER9
powerpc: Use TIDR CPU feature to control TIDR allocation
powerpc: use task_pid_nr() for TID allocation
ocxl: Rename pnv_ocxl_spa_remove_pe to clarify it's action
ocxl: Expose the thread_id needed for wait on POWER9
ocxl: Add an IOCTL so userspace knows what OCXL features are available
ocxl: Document new OCXL IOCTLs
Documentation/accelerators/ocxl.rst | 11 ++++
arch/powerpc/include/asm/cputable.h | 3 +-
arch/powerpc/include/asm/pnv-ocxl.h | 2 +-
arch/powerpc/include/asm/switch_to.h | 1 -
arch/powerpc/kernel/dt_cpu_ftrs.c | 1 +
arch/powerpc/kernel/process.c | 101 +---------------------------------
arch/powerpc/platforms/powernv/ocxl.c | 4 +-
drivers/misc/ocxl/context.c | 5 +-
drivers/misc/ocxl/file.c | 78 ++++++++++++++++++++++++++
drivers/misc/ocxl/link.c | 38 ++++++++++++-
drivers/misc/ocxl/ocxl_internal.h | 1 +
include/misc/ocxl.h | 9 +++
include/uapi/misc/ocxl.h | 14 +++++
13 files changed, 163 insertions(+), 105 deletions(-)
--
2.14.3
next reply other threads:[~2018-05-11 6:15 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-11 6:12 Alastair D'Silva [this message]
2018-05-11 6:12 ` [PATCH v5 1/7] powerpc: Add TIDR CPU feature for POWER9 Alastair D'Silva
2018-05-11 8:38 ` Frederic Barrat
2018-05-31 4:19 ` Andrew Donnellan
2018-06-04 14:10 ` [v5,1/7] " Michael Ellerman
2018-05-11 6:12 ` [PATCH v5 2/7] powerpc: Use TIDR CPU feature to control TIDR allocation Alastair D'Silva
2018-05-11 8:46 ` Frederic Barrat
2018-05-31 4:20 ` Andrew Donnellan
2018-05-11 6:12 ` [PATCH v5 3/7] powerpc: use task_pid_nr() for TID allocation Alastair D'Silva
2018-05-11 8:48 ` Frederic Barrat
2018-05-31 4:29 ` Andrew Donnellan
2018-05-11 6:13 ` [PATCH v5 4/7] ocxl: Rename pnv_ocxl_spa_remove_pe to clarify it's action Alastair D'Silva
2018-05-11 8:49 ` Frederic Barrat
2018-05-31 4:32 ` Andrew Donnellan
2018-05-11 6:13 ` [PATCH v5 5/7] ocxl: Expose the thread_id needed for wait on POWER9 Alastair D'Silva
2018-05-11 9:25 ` Frederic Barrat
2018-05-11 10:06 ` Alastair D'Silva
2018-05-11 11:03 ` Frederic Barrat
2018-05-31 4:42 ` Andrew Donnellan
2018-05-11 6:13 ` [PATCH v5 6/7] ocxl: Add an IOCTL so userspace knows what OCXL features are available Alastair D'Silva
2018-05-11 9:27 ` Frederic Barrat
2018-05-31 4:46 ` Andrew Donnellan
2018-05-11 6:13 ` [PATCH v5 7/7] ocxl: Document new OCXL IOCTLs Alastair D'Silva
2018-05-11 9:28 ` Frederic Barrat
2018-05-31 4:48 ` Andrew Donnellan
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