[PATCH] drm/amdgpu: skip ring soft reset on SR-IOV VF

[Trigger Huang]

When TDR happened on SR-IOV VF, the host Hypervisor may has already
done the VF FLR, then, the re-initialization flow in KMD is a must.
The same logic is in amdgpu_device_ip_check_soft_reset, too

Signed-off-by: Trigger Huang <Trigger.Huang at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
index 5b75bdc..14bd67a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
@@ -397,6 +397,9 @@ bool amdgpu_ring_soft_recovery(struct amdgpu_ring *ring, unsigned int vmid,
 {
 	ktime_t deadline = ktime_add_us(ktime_get(), 10000);
 
+	if (amdgpu_sriov_vf(ring->adev))
+		return false;
+
 	if (!ring->funcs->soft_recovery)
 		return false;
 
-- 
2.7.4