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(parent: 48b0dc9) | patch
drm/amd/pm: invalidate hdp before CPU access the memory written by GPU
authorEvan Quan <evan.quan@amd.com>
Fri, 27 Nov 2020 02:57:22 +0000 (10:57 +0800)
committerAlex Deucher <alexander.deucher@amd.com>
Wed, 9 Dec 2020 04:01:24 +0000 (23:01 -0500)
commit7582db3798684c3f2de0c6687c8e9f9219c5c668
tree2a0e7cd65643aa757a327d90378bf3df1502f762tree | snapshot
parent48b0dc9b893ac1c34405bd3533903e738820581ecommit | diff
drm/amd/pm: invalidate hdp before CPU access the memory written by GPU

To eliminate the possible influence by outdated HDP read cache.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>
drivers/gpu/drm/amd/pm/powerplay/smumgr/smu10_smumgr.c diff | blob | history
drivers/gpu/drm/amd/pm/powerplay/smumgr/vega10_smumgr.c diff | blob | history
drivers/gpu/drm/amd/pm/powerplay/smumgr/vega12_smumgr.c diff | blob | history
drivers/gpu/drm/amd/pm/powerplay/smumgr/vega20_smumgr.c diff | blob | history
drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c diff | blob | history
Linux Kernel Source Tree.