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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 0/7] ocxl: Implement Power9 as_notify/wait for OpenCAPI
Date: Tue, 17 Apr 2018 12:09:43 +1000	[thread overview]
Message-ID: <20180417020950.21446-1-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.

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 p9
  ocxl: Add an IOCTL so userspace knows which platform the kernel
    requires
  ocxl: Document new OCXL IOCTLs

 Documentation/accelerators/ocxl.rst   | 10 ++++
 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         | 99 +----------------------------------
 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, 161 insertions(+), 104 deletions(-)

-- 
2.14.3

             reply	other threads:[~2018-04-17  2:09 UTC|newest]

Thread overview: 59+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-17  2:09 Alastair D'Silva [this message]
2018-04-17  2:09 ` [PATCH 1/7] powerpc: Add TIDR CPU feature for Power9 Alastair D'Silva
2018-04-17  4:09   ` Andrew Donnellan
2018-04-17  2:09 ` [PATCH 2/7] powerpc: Use TIDR CPU feature to control TIDR allocation Alastair D'Silva
2018-04-17  4:21   ` Andrew Donnellan
2018-04-17  5:31     ` Alastair D'Silva
2018-04-17  2:09 ` [PATCH 3/7] powerpc: use task_pid_nr() for TID allocation Alastair D'Silva
2018-04-17  2:09 ` [PATCH 4/7] ocxl: Rename pnv_ocxl_spa_remove_pe to clarify it's action Alastair D'Silva
2018-04-17  5:37   ` Andrew Donnellan
2018-04-17  2:09 ` [PATCH 5/7] ocxl: Expose the thread_id needed for wait on p9 Alastair D'Silva
2018-04-17  2:09 ` [PATCH 6/7] ocxl: Add an IOCTL so userspace knows which platform the kernel requires Alastair D'Silva
2018-04-17  2:09 ` [PATCH 7/7] ocxl: Document new OCXL IOCTLs Alastair D'Silva
2018-04-17  3:45   ` Andrew Donnellan
2018-04-18  1:08 ` [PATCH v2 0/7] ocxl: Implement Power9 as_notify/wait for OpenCAPI Alastair D'Silva
2018-04-18  1:08   ` [PATCH v2 1/7] powerpc: Add TIDR CPU feature for Power9 Alastair D'Silva
2018-04-18  7:03     ` Andrew Donnellan
2018-05-07 17:17     ` Frederic Barrat
2018-05-08  3:13       ` Alastair D'Silva
2018-04-18  1:08   ` [PATCH v2 2/7] powerpc: Use TIDR CPU feature to control TIDR allocation Alastair D'Silva
2018-04-18  7:13     ` Andrew Donnellan
2018-05-07 17:19     ` Frederic Barrat
2018-04-18  1:08   ` [PATCH v2 3/7] powerpc: use task_pid_nr() for TID allocation Alastair D'Silva
2018-04-20  8:43     ` Andrew Donnellan
2018-04-24 21:12       ` Sukadev Bhattiprolu
2018-04-26  9:25         ` Andrew Donnellan
2018-05-07 17:37     ` Frederic Barrat
2018-05-08  0:40       ` Alastair D'Silva
2018-04-18  1:08   ` [PATCH v2 4/7] ocxl: Rename pnv_ocxl_spa_remove_pe to clarify it's action Alastair D'Silva
2018-05-07 17:38     ` Frederic Barrat
2018-04-18  1:08   ` [PATCH v2 5/7] ocxl: Expose the thread_id needed for wait on p9 Alastair D'Silva
2018-04-23  7:16     ` Andrew Donnellan
2018-05-07 18:08     ` Frederic Barrat
2018-04-18  1:08   ` [PATCH v2 6/7] ocxl: Add an IOCTL so userspace knows what CPU features are available Alastair D'Silva
2018-04-20  7:25     ` Andrew Donnellan
2018-05-07 18:14     ` Frederic Barrat
2018-05-08  0:41       ` Alastair D'Silva
2018-05-08  3:50         ` Nicholas Piggin
2018-05-08  3:54           ` Alastair D'Silva
2018-04-18  1:08   ` [PATCH v2 7/7] ocxl: Document new OCXL IOCTLs Alastair D'Silva
2018-04-18  7:29     ` Andrew Donnellan
2018-05-07 18:15     ` Frederic Barrat
2018-05-09  0:42 ` [PATCH v3 0/7] ocxl: Implement Power9 as_notify/wait for OpenCAPI Alastair D'Silva
2018-05-09  0:42   ` [PATCH v3 1/7] powerpc: Add TIDR CPU feature for POWER9 Alastair D'Silva
2018-05-09  0:42   ` [PATCH v3 2/7] powerpc: Use TIDR CPU feature to control TIDR allocation Alastair D'Silva
2018-05-09  0:42   ` [PATCH v3 3/7] powerpc: use task_pid_nr() for TID allocation Alastair D'Silva
2018-05-09  0:42   ` [PATCH v3 4/7] ocxl: Rename pnv_ocxl_spa_remove_pe to clarify it's action Alastair D'Silva
2018-05-09  0:42   ` [PATCH v3 5/7] ocxl: Expose the thread_id needed for wait on POWER9 Alastair D'Silva
2018-05-11  5:01     ` Michael Ellerman
2018-05-09  0:42   ` [PATCH v3 6/7] ocxl: Add an IOCTL so userspace knows what OCXL features are available Alastair D'Silva
2018-05-09  0:42   ` [PATCH v3 7/7] ocxl: Document new OCXL IOCTLs Alastair D'Silva
2018-05-09  5:34   ` [PATCH v4 0/7] ocxl: Implement Power9 as_notify/wait for OpenCAPI Alastair D'Silva
2018-05-09  5:35     ` [PATCH v4 1/7] powerpc: Add TIDR CPU feature for POWER9 Alastair D'Silva
2018-05-09  5:35     ` [PATCH v4 2/7] powerpc: Use TIDR CPU feature to control TIDR allocation Alastair D'Silva
2018-05-09  5:35     ` [PATCH v4 3/7] powerpc: use task_pid_nr() for TID allocation Alastair D'Silva
2018-05-09  5:35     ` [PATCH v4 4/7] ocxl: Rename pnv_ocxl_spa_remove_pe to clarify it's action Alastair D'Silva
2018-05-09  5:35     ` [PATCH v4 5/7] ocxl: Expose the thread_id needed for wait on POWER9 Alastair D'Silva
2018-05-09  5:35     ` [PATCH v4 6/7] ocxl: Add an IOCTL so userspace knows what OCXL features are available Alastair D'Silva
2018-05-11  5:20       ` Michael Ellerman
2018-05-09  5:35     ` [PATCH v4 7/7] ocxl: Document new OCXL IOCTLs Alastair D'Silva

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