| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.9 90/94] drm/amdgpu: Enable/disable gfx PG feature in rlc safe mode | Date | Tue, 2 Oct 2018 06:25:44 -0700 |
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4.9-stable review patch. If anyone has any objections, please let me know.
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From: Rex Zhu <Rex.Zhu@amd.com>
[ Upstream commit 8ef23364b654d44244400d79988e677e504b21ba ]
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> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c @@ -5551,6 +5551,11 @@ static int gfx_v8_0_set_powergating_stat if (!(adev->pg_flags & AMD_PG_SUPPORT_GFX_PG)) 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: @@ -5586,7 +5591,11 @@ static int gfx_v8_0_set_powergating_stat 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; }
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