[PATCH v3 0/5] GPU workload hints for better performance

[Shashank Sharma]

AMDGPU SOCs supports dynamic workload based power profiles, which can
provide fine-tuned performance for a particular type of workload.
This patch series adds an interface to set/reset these power profiles
based on the workload type hints. A user can set a hint of workload
type being submistted to GPU, and the driver can dynamically switch
the power profiles which is best suited to this kind of workload. 

Currently supported workload profiles are:
"None", "3D", "Video", "VR", "Compute"

V2: This version addresses the review comment from Christian about
chaning the design to set workload mode in a more dynamic method
than during the context creation.

V3: Addressed review comment from Christian, Removed the get_workload()
    calls from UAPI, keeping only the set_workload() call.

Shashank Sharma (5):
  drm/amdgpu: add UAPI for workload hints to ctx ioctl
  drm/amdgpu: add new functions to set GPU power profile
  drm/amdgpu: set GPU workload via ctx IOCTL
  drm/amdgpu: switch GPU workload profile
  drm/amdgpu: switch workload context to/from compute

 drivers/gpu/drm/amd/amdgpu/Makefile           |  2 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c    | 14 ++-
 drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c        |  2 +
 drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c       | 42 ++++++++-
 drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.h       |  1 +
 .../gpu/drm/amd/amdgpu/amdgpu_ctx_workload.c  | 93 +++++++++++++++++++
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c    |  1 +
 drivers/gpu/drm/amd/amdgpu/amdgpu_job.c       | 15 +++
 drivers/gpu/drm/amd/amdgpu/amdgpu_job.h       |  3 +
 .../gpu/drm/amd/include/amdgpu_ctx_workload.h | 54 +++++++++++
 drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h       |  5 +
 include/uapi/drm/amdgpu_drm.h                 | 17 ++++
 12 files changed, 243 insertions(+), 6 deletions(-)
 create mode 100644 drivers/gpu/drm/amd/amdgpu/amdgpu_ctx_workload.c
 create mode 100644 drivers/gpu/drm/amd/include/amdgpu_ctx_workload.h

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2.34.1