1.Skip decode_ring test in VF, because VCN in SRIOV does not
support direct register read/write.
2.Skip powergating configuration in hw fini because
VCN3.0 SRIOV doesn't support powergating.
V2: delete unneccessary white lines and refine implementation.
Signed-off-by: Jack Zhang <Jack.Zhang1@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c | 4 ++++
drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c | 21 ++++++++++++++++-----
2 files changed, 20 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
index 15ff30c53e24..92a55e40bc48 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
@@ -421,6 +421,10 @@ int amdgpu_vcn_dec_ring_test_ring(struct amdgpu_ring *ring)
unsigned i;
int r;
+ /* VCN in SRIOV does not support direct register read/write */
+ if (amdgpu_sriov_vf(adev))
+ return 0;
+
WREG32(adev->vcn.inst[ring->me].external.scratch9, 0xCAFEDEAD);
r = amdgpu_ring_alloc(ring, 3);
if (r)
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c
index 0a0ca10bf55b..910a4a32ff78 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c
@@ -354,11 +354,13 @@ static int vcn_v3_0_hw_fini(void *handle)
ring = &adev->vcn.inst[i].ring_dec;
- if ((adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) ||
- (adev->vcn.cur_state != AMD_PG_STATE_GATE &&
- RREG32_SOC15(VCN, i, mmUVD_STATUS)))
- vcn_v3_0_set_powergating_state(adev, AMD_PG_STATE_GATE);
-
+ if (!amdgpu_sriov_vf(adev)) {
+ if ((adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) ||
+ (adev->vcn.cur_state != AMD_PG_STATE_GATE &&
+ RREG32_SOC15(VCN, i, mmUVD_STATUS))) {
+ vcn_v3_0_set_powergating_state(adev, AMD_PG_STATE_GATE);
+ }
+ }
ring->sched.ready = false;
for (j = 0; j < adev->vcn.num_enc_rings; ++j) {
@@ -1861,6 +1863,15 @@ static int vcn_v3_0_set_powergating_state(void *handle,
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
int ret;
+ /* for SRIOV, guest should not control VCN Power-gating
+ * MMSCH FW should control Power-gating and clock-gating
+ * guest should avoid touching CGC and PG
+ */
+ if (amdgpu_sriov_vf(adev)) {
+ adev->vcn.cur_state = AMD_PG_STATE_UNGATE;
+ return 0;
+ }
+
if(state == adev->vcn.cur_state)
return 0;
--
2.17.1
_______________________________________________
amd-gfx mailing list
amd-gfx@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
