drm/amd/pm: invalidate hdp before CPU access the memory written by GPU

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To eliminate the possible influence by outdated HDP read cache.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Evan Quan 2020-11-27 10:57:22 +08:00 • committed by Alex Deucher

parent b7a1f38256

commit 0339258bd9

5 changed files with 6 additions and 11 deletions

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3

drivers/gpu/drm/amd/pm/powerplay/smumgr/smu10_smumgr.c

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3

drivers/gpu/drm/amd/pm/powerplay/smumgr/vega10_smumgr.c

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drivers/gpu/drm/amd/pm/powerplay/smumgr/vega12_smumgr.c

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drivers/gpu/drm/amd/pm/powerplay/smumgr/vega20_smumgr.c

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2

drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c

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