drm/amdgpu: enable smart shift on dGPU (v5)

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enable smart shift on dGPU if it is part of HG system and
the platform supports ATCS method to handle power shift.

V2: avoid psc updates in baco enter and exit (Lijo)
    fix alignment (Shashank)
V3: rebased on unified ATCS handling. (Alex)
V4: check for return value and warn on failed update (Shashank)
    return 0 if device does not support smart shift.  (Lizo)
V5: rebased on ATPX/ATCS structures global (Alex)

Signed-off-by: Sathishkumar S <sathishkumar.sundararaju@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Shashank Sharma <shashank.sharma@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Sathishkumar S 2021-05-26 16:06:19 +05:30 • committed by Alex Deucher

parent 19a1d9350b

commit 3fa8f89d72

4 changed files with 97 additions and 0 deletions

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18

drivers/gpu/drm/amd/amdgpu/amdgpu.h

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49

drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c

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24

drivers/gpu/drm/amd/amdgpu/amdgpu_device.c

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6

drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c

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