[PATCH] drm/amdgpu: Ignore stop rlc on SRIOV environment.

Gavin Wan Gavin.Wan at amd.com
Wed Nov 9 18:24:22 UTC 2022


For SRIOV, the guest driver should not do stop rlc. The host
handles programing RLC.

On SRIOV, the stop rlc will be hang (RLC related registers are
blocked by policy) when the RLCG interface is not enabled.

Signed-off-by: Gavin Wan <Gavin.Wan at amd.com>
Change-Id: Iac31332e2c958aae9506759de1d3a311b5c84942
---
 drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
index 4fe75dd2b329..0e9529b95d35 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
@@ -1517,7 +1517,7 @@ static int smu_disable_dpms(struct smu_context *smu)
 	}
 
 	if (adev->ip_versions[GC_HWIP][0] >= IP_VERSION(9, 4, 2) &&
-	    adev->gfx.rlc.funcs->stop)
+	    !amdgpu_sriov_vf(adev) && adev->gfx.rlc.funcs->stop)
 		adev->gfx.rlc.funcs->stop(adev);
 
 	return ret;
-- 
2.34.1



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