diff options
| author | pding <Pixel.Ding@amd.com> | 2017-10-24 03:51:04 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-12-04 22:33:13 +0100 |
| commit | b636176efdf0e365a69613f03f6ecbf6fd0408cb (patch) | |
| tree | c8aa6361e2719540a7b2c3d060388c084334266f /drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | |
| parent | drm/amdgpu/virt: add function to check MMIO (v2) (diff) | |
| download | linux-b636176efdf0e365a69613f03f6ecbf6fd0408cb.tar.xz linux-b636176efdf0e365a69613f03f6ecbf6fd0408cb.zip | |
drm/amdgpu/virt: add wait_reset virt ops
Driver can use this interface to check if there's a function level
reset done in hypervisor. It's helpful when IRQ handler for reset
is not ready, or special handling is required.
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Monk Liu <monk.liu@amd.com>
Signed-off-by: pding <Pixel.Ding@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c index 0f227cf7a67c..b7510bf6bc0f 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c @@ -236,6 +236,22 @@ int amdgpu_virt_reset_gpu(struct amdgpu_device *adev) } /** + * amdgpu_virt_wait_reset() - wait for reset gpu completed + * @amdgpu: amdgpu device. + * Wait for GPU reset completed. + * Return: Zero if reset success, otherwise will return error. + */ +int amdgpu_virt_wait_reset(struct amdgpu_device *adev) +{ + struct amdgpu_virt *virt = &adev->virt; + + if (!virt->ops || !virt->ops->wait_reset) + return -EINVAL; + + return virt->ops->wait_reset(adev); +} + +/** * amdgpu_virt_alloc_mm_table() - alloc memory for mm table * @amdgpu: amdgpu device. * MM table is used by UVD and VCE for its initialization |