drm/amd/pm: implement processor fine grain feature for vangogh (v3)

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This patch is to implement the processor fine grain feature for vangogh.
It's similar with gfx clock, the only difference is below:

echo "p core_id level value" > pp_od_clk_voltage

1. "p" - set the cclk (processor) frequency
2. "core_id" - 0/1/2/3, represents which cpu core you want to select
2. "level" - 0 or 1, "0" represents the min value,  "1" represents the
   max value
3. "value" - the target value of cclk frequency, it should be limited in
   the safe range

v2: fix some missing changes as Evan's suggestion.
v3: add version check and fix the restore.

Signed-off-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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This commit is contained in:

Huang Rui 2021-01-08 15:31:38 +08:00 • committed by Alex Deucher

parent 517cb957c4

commit 0d90d0ddd1

5 changed files with 105 additions and 1 deletions

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1

drivers/gpu/drm/amd/include/kgd_pp_interface.h

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3

drivers/gpu/drm/amd/pm/amdgpu_pm.c

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6

drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h

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1

drivers/gpu/drm/amd/pm/inc/smu_types.h

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95

drivers/gpu/drm/amd/pm/swsmu/smu11/vangogh_ppt.c

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