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drm/amd/sriov skip vcn powergating and dec_ring_test

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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@amd.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Jack Zhang 2020-06-29 10:06:49 +08:00 committed by Alex Deucher
parent a330272936
commit c8466cc0d2
2 changed files with 20 additions and 5 deletions
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4
drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
View File

@ -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)

21
drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c
View File

@ -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;