diff options
| author | Xiangliang Yu <Xiangliang.Yu@amd.com> | 2017-01-12 15:14:36 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-01-27 11:13:25 -0500 |
| commit | 3149d9da12263b696d6123f90e44968ebde2115d (patch) | |
| tree | d72701f0fec1914431e9a10adff0aaddefd533e7 /drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | |
| parent | ab71ac56f6d832443fcd9f884460263b2dc3ff6b (diff) | |
| download | linux-3149d9da12263b696d6123f90e44968ebde2115d.tar.bz2 | |
drm/amdgpu: request/release full gpu access if device is vf
For gpu vf device, first need to request full gpu access before
accessing gpu registers, and release full gpu access after the
access is done.
Signed-off-by: Xiangliang Yu <Xiangliang.Yu@amd.com>
Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_device.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 6eabeaaa3c30..e0fcfea99328 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -1345,6 +1345,12 @@ static int amdgpu_early_init(struct amdgpu_device *adev) return -EINVAL; } + if (amdgpu_sriov_vf(adev)) { + r = amdgpu_virt_request_full_gpu(adev, true); + if (r) + return r; + } + for (i = 0; i < adev->num_ip_blocks; i++) { if ((amdgpu_ip_block_mask & (1 << i)) == 0) { DRM_ERROR("disabled ip block: %d\n", i); @@ -1547,8 +1553,10 @@ static int amdgpu_fini(struct amdgpu_device *adev) adev->ip_blocks[i].status.late_initialized = false; } - if (amdgpu_sriov_vf(adev)) + if (amdgpu_sriov_vf(adev)) { amdgpu_bo_free_kernel(&adev->virt.csa_obj, &adev->virt.csa_vmid0_addr, NULL); + amdgpu_virt_release_full_gpu(adev, false); + } return 0; } |