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* [PATCH v5 0/7] ocxl: Implement Power9 as_notify/wait for OpenCAPI
@ 2018-05-11  6:12 Alastair D'Silva
  2018-05-11  6:12 ` [PATCH v5 1/7] powerpc: Add TIDR CPU feature for POWER9 Alastair D'Silva
                   ` (6 more replies)
  0 siblings, 7 replies; 25+ messages in thread
From: Alastair D'Silva @ 2018-05-11  6:12 UTC (permalink / raw)
  To: linuxppc-dev
  Cc: linux-kernel, linux-doc, mikey, vaibhav, aneesh.kumar, malat,
	felix, pombredanne, sukadev, npiggin, gregkh, arnd,
	andrew.donnellan, fbarrat, corbet, Alastair D'Silva

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

^ permalink raw reply	[flat|nested] 25+ messages in thread

end of thread, other threads:[~2018-06-04 14:10 UTC | newest]

Thread overview: 25+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-05-11  6:12 [PATCH v5 0/7] ocxl: Implement Power9 as_notify/wait for OpenCAPI Alastair D'Silva
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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