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| author | xinhui pan <xinhui.pan@amd.com> | 2019-05-09 09:00:14 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-05-24 12:20:51 -0500 |
| commit | 777ac3ba3d85e87c0739ccedad0effd1e6e0ac41 (patch) | |
| tree | 590403ebe86f57778f3582fc90fb8998f337741d /drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c | |
| parent | 2c2fc0cd0bd162dde2a30eafb851ff11b1ecd655 (diff) | |
| download | linux-stable-777ac3ba3d85e87c0739ccedad0effd1e6e0ac41.tar.gz linux-stable-777ac3ba3d85e87c0739ccedad0effd1e6e0ac41.tar.bz2 linux-stable-777ac3ba3d85e87c0739ccedad0effd1e6e0ac41.zip | |
drm/amdgpu: sdma handle ras resume
During S3/S4 bootloader will re-init ras state behind us.
Resume might fail or raise a gpu reset.
Signed-off-by: xinhui pan <xinhui.pan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: James Zhu <James.Zhu@amd.com>
Tested-by: James Zhu <James.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c index d227215a85bb..7a259c5b6c62 100644 --- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c @@ -1523,8 +1523,25 @@ static int sdma_v4_0_late_init(void *handle) } /* handle resume path. */ - if (*ras_if) + if (*ras_if) { + /* resend ras TA enable cmd during resume. + * prepare to handle failure. + */ + ih_info.head = **ras_if; + r = amdgpu_ras_feature_enable_on_boot(adev, *ras_if, 1); + if (r) { + if (r == -EAGAIN) { + /* request a gpu reset. will run again. */ + amdgpu_ras_request_reset_on_boot(adev, + AMDGPU_RAS_BLOCK__SDMA); + return 0; + } + /* fail to enable ras, cleanup all. */ + goto irq; + } + /* enable successfully. continue. */ goto resume; + } *ras_if = kmalloc(sizeof(**ras_if), GFP_KERNEL); if (!*ras_if) |