diff options
author | Felix Kuehling <Felix.Kuehling@amd.com> | 2023-08-24 14:41:30 -0400 |
---|---|---|
committer | Alex Deucher <alexander.deucher@amd.com> | 2023-12-13 15:09:55 -0500 |
commit | 1819200166ce511ac298dc96b9b17eb655a9edc4 (patch) | |
tree | 2aaf5ecdd6c81701a6f68253e4227c26afbc9c2d /drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c | |
parent | 4e95669ecb03d797355bc23871c5c43b9475d3dc (diff) |
drm/amdkfd: Export DMABufs from KFD using GEM handles
Create GEM handles for exporting DMABufs using GEM-Prime APIs. The GEM
handles are created in a drm_client_dev context to avoid exposing them
in user mode contexts through a DMABuf import.
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Ramesh Errabolu <Ramesh.Errabolu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c')
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c index 2d22f7d45512..067690ba7bff 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c @@ -142,6 +142,7 @@ void amdgpu_amdkfd_device_init(struct amdgpu_device *adev) { int i; int last_valid_bit; + int ret; amdgpu_amdkfd_gpuvm_init_mem_limits(); @@ -160,6 +161,12 @@ void amdgpu_amdkfd_device_init(struct amdgpu_device *adev) .enable_mes = adev->enable_mes, }; + ret = drm_client_init(&adev->ddev, &adev->kfd.client, "kfd", NULL); + if (ret) { + dev_err(adev->dev, "Failed to init DRM client: %d\n", ret); + return; + } + /* this is going to have a few of the MSBs set that we need to * clear */ @@ -198,6 +205,10 @@ void amdgpu_amdkfd_device_init(struct amdgpu_device *adev) adev->kfd.init_complete = kgd2kfd_device_init(adev->kfd.dev, &gpu_resources); + if (adev->kfd.init_complete) + drm_client_register(&adev->kfd.client); + else + drm_client_release(&adev->kfd.client); amdgpu_amdkfd_total_mem_size += adev->gmc.real_vram_size; |