[PATCH 082/100] drm/amdgpu:bypass RLC init for SRIOV

Alex Deucher alexdeucher at gmail.com
Mon Mar 20 20:30:17 UTC 2017

From: Monk Liu <Monk.Liu at amd.com>

one issue unresolved for RLC:
rlc will go wrong completely if there is a soft_reset
before RLC ucode loading.

to workaround above issue, we can totally ignore RLC
in guest driver side due to there was already full
initialization on RLC side by GIM

Signed-off-by: Monk Liu <Monk.Liu at amd.com>
Signed-off-by: Xiangliang Yu <Xiangliang.Yu at amd.com>
Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
Acked-by: Christian König <christian.koenig at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
 drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index 2241075..8e5367d 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -1459,6 +1459,9 @@ static int gfx_v9_0_rlc_resume(struct amdgpu_device *adev)
 	int r;
+	if (amdgpu_sriov_vf(adev))
+		return 0;
 	/* disable CG */

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