diff options
| author | Andrey Grodzovsky <andrey.grodzovsky@amd.com> | 2020-07-29 13:10:29 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-09-15 17:24:39 -0400 |
| commit | bf36b52e781d7412c3fce826f74ba6a73b9be4d0 (patch) | |
| tree | 6885f6ea592c9dc01a37bead6ed43ea8021c63fd /drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | |
| parent | c9a6b82f45e261d247b980a7949aaa6a9bfffe01 (diff) | |
drm/amdgpu: Avoid accessing HW when suspending SW state
At this point the ASIC is already post reset by the HW/PSP
so the HW not in proper state to be configured for suspension,
some blocks might be even gated and so best is to avoid touching it.
v2: Rename in_dpc to more meaningful name
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c index d6c38e24f130..a7771aaa1c51 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c @@ -219,6 +219,9 @@ int psp_wait_for(struct psp_context *psp, uint32_t reg_index, int i; struct amdgpu_device *adev = psp->adev; + if (psp->adev->in_pci_err_recovery) + return 0; + for (i = 0; i < adev->usec_timeout; i++) { val = RREG32(reg_index); if (check_changed) { @@ -245,6 +248,9 @@ psp_cmd_submit_buf(struct psp_context *psp, bool ras_intr = false; bool skip_unsupport = false; + if (psp->adev->in_pci_err_recovery) + return 0; + mutex_lock(&psp->mutex); memset(psp->cmd_buf_mem, 0, PSP_CMD_BUFFER_SIZE); |