Add VCE ring test slow workaround for SRIOV.
Signed-off-by: Frank Min <frank....@amd.com>
Signed-off-by: Xiangliang Yu <xiangliang...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
index e43c83f..cdff938 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
@@ -955,7 +955,11 @@ int amdgpu_vce_ring_test_ring(struct amdgpu_ring *ring)
struct amdgpu_device *adev = ring->adev;
uint32_t rptr = amdgpu_ring_get_rptr(ring);
unsigned i;
- int r;
+ int r, timeout = adev->usec_timeout;
+
+ /* workaround VCE ring test slow issue for sriov*/
+ if (amdgpu_sriov_vf(adev))
+ timeout *= 10;
/* TODO: remove it if VCE can work for sriov */
if (amdgpu_sriov_vf(adev))
@@ -970,13 +974,13 @@ int amdgpu_vce_ring_test_ring(struct amdgpu_ring *ring)
amdgpu_ring_write(ring, VCE_CMD_END);
amdgpu_ring_commit(ring);
- for (i = 0; i < adev->usec_timeout; i++) {
+ for (i = 0; i < timeout; i++) {
if (amdgpu_ring_get_rptr(ring) != rptr)
break;
DRM_UDELAY(1);
}
- if (i < adev->usec_timeout) {
+ if (i < timeout) {
DRM_INFO("ring test on %d succeeded in %d usecs\n",
ring->idx, i);
} else {
--
2.7.4
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