[PATCH] drm/amdgpu: Direct ret in ras_reset_err_cnt on VF

[Ellen Pan]

With adding sriov_vf check, we directly return EOPNOTSUPP in
ras_reset_error_count as we should not do anything on VF to reset RAS error
count.

This also fixes the issue that loading guest driver causes register
violations.

Signed-off-by: Ellen Pan <yunru.pan at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
index ebf1f63d0442..f8cf9621097f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
@@ -1498,6 +1498,9 @@ int amdgpu_ras_reset_error_count(struct amdgpu_device *adev,
 	    !amdgpu_ras_get_aca_debug_mode(adev))
 		return -EOPNOTSUPP;
 
+	if (amdgpu_sriov_vf(adev))
+		return -EOPNOTSUPP;
+
 	/* skip ras error reset in gpu reset */
 	if ((amdgpu_in_reset(adev) || amdgpu_ras_in_recovery(adev)) &&
 	    ((smu_funcs && smu_funcs->set_debug_mode) ||
-- 
2.34.1