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drm/amdgpu: Enable/disable gfx PG feature in rlc safe mode 

This is required by gfx hw and can fix the rlc hang when
do s3 stree test on Cz/St.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Hang Zhou <hang.zhou@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Rex Zhu 2018-08-24 17:26:23 +08:00 committed by Alex Deucher
parent 43370c4ce5
commit 1f06dee8f7
1 changed files with 10 additions and 1 deletions
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11
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
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@ -5660,6 +5660,11 @@ static int gfx_v8_0_set_powergating_state(void *handle,
if (amdgpu_sriov_vf(adev))
return 0;
if (adev->pg_flags & (AMD_PG_SUPPORT_GFX_SMG |
AMD_PG_SUPPORT_RLC_SMU_HS |
AMD_PG_SUPPORT_CP |
AMD_PG_SUPPORT_GFX_DMG))
adev->gfx.rlc.funcs->enter_safe_mode(adev);
switch (adev->asic_type) {
case CHIP_CARRIZO:
case CHIP_STONEY:
@ -5709,7 +5714,11 @@ static int gfx_v8_0_set_powergating_state(void *handle,
default:
break;
}
if (adev->pg_flags & (AMD_PG_SUPPORT_GFX_SMG |
AMD_PG_SUPPORT_RLC_SMU_HS |
AMD_PG_SUPPORT_CP |
AMD_PG_SUPPORT_GFX_DMG))
adev->gfx.rlc.funcs->exit_safe_mode(adev);
return 0;
}