From: Alastair D'Silva <alast...@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
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