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drm/amdgpu: reset psp ring wptr during ring_create

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[Why]
psp ring wptr is not initialized properly in ring_create,
which would lead to psp failure after several gpu reset.

[How]
Set ring_wptr to zero in psp_ring_create.

Signed-off-by: YuBiao Wang <YuBiao.Wang@amd.com>
Reviewed-by: Horace Chen <horace.chen@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
YuBiao Wang 2021-06-09 10:41:34 +08:00 committed by Alex Deucher
parent 076f55a45e
commit 29b4ac0ed9
2 changed files with 2 additions and 0 deletions
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1
drivers/gpu/drm/amd/amdgpu/psp_v11_0.c
View File

@ -461,6 +461,7 @@ static int psp_v11_0_ring_create(struct psp_context *psp,
struct amdgpu_device *adev = psp->adev;
if (amdgpu_sriov_vf(adev)) {
ring->ring_wptr = 0;
ret = psp_v11_0_ring_stop(psp, ring_type);
if (ret) {
DRM_ERROR("psp_v11_0_ring_stop_sriov failed!\n");

1
drivers/gpu/drm/amd/amdgpu/psp_v3_1.c
View File

@ -227,6 +227,7 @@ static int psp_v3_1_ring_create(struct psp_context *psp,
psp_v3_1_reroute_ih(psp);
if (amdgpu_sriov_vf(adev)) {
ring->ring_wptr = 0;
ret = psp_v3_1_ring_stop(psp, ring_type);
if (ret) {
DRM_ERROR("psp_v3_1_ring_stop_sriov failed!\n");