diff options
| author | Felix Kuehling <Felix.Kuehling@amd.com> | 2018-04-10 17:33:02 -0400 |
|---|---|---|
| committer | Oded Gabbay <oded.gabbay@gmail.com> | 2018-04-10 17:33:02 -0400 |
| commit | 642a0e80262af8e9d5b8129e2149c670ab3bb4b8 (patch) | |
| tree | a8ce3602019068857bdda90b7c251f9c5fbd7b70 /drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c | |
| parent | d5a114a6c5f7fa41da338e0134fccf3f25723fbd (diff) | |
| download | op-kernel-dev-642a0e80262af8e9d5b8129e2149c670ab3bb4b8.zip op-kernel-dev-642a0e80262af8e9d5b8129e2149c670ab3bb4b8.tar.gz | |
drm/amdgpu: Add doorbell routing info to kgd2kfd_shared_resources
This is needed for Vega10 and later ASICs to let KFD know which
doorbells can be used for SDMA and CP queues respectively.
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c index fcd10db..cd0e8f1 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c @@ -179,6 +179,28 @@ void amdgpu_amdkfd_device_init(struct amdgpu_device *adev) &gpu_resources.doorbell_physical_address, &gpu_resources.doorbell_aperture_size, &gpu_resources.doorbell_start_offset); + if (adev->asic_type >= CHIP_VEGA10) { + /* On SOC15 the BIF is involved in routing + * doorbells using the low 12 bits of the + * address. Communicate the assignments to + * KFD. KFD uses two doorbell pages per + * process in case of 64-bit doorbells so we + * can use each doorbell assignment twice. + */ + gpu_resources.sdma_doorbell[0][0] = + AMDGPU_DOORBELL64_sDMA_ENGINE0; + gpu_resources.sdma_doorbell[0][1] = + AMDGPU_DOORBELL64_sDMA_ENGINE0 + 0x200; + gpu_resources.sdma_doorbell[1][0] = + AMDGPU_DOORBELL64_sDMA_ENGINE1; + gpu_resources.sdma_doorbell[1][1] = + AMDGPU_DOORBELL64_sDMA_ENGINE1 + 0x200; + /* Doorbells 0x0f0-0ff and 0x2f0-2ff are reserved for + * SDMA, IH and VCN. So don't use them for the CP. + */ + gpu_resources.reserved_doorbell_mask = 0x1f0; + gpu_resources.reserved_doorbell_val = 0x0f0; + } kgd2kfd->device_init(adev->kfd, &gpu_resources); } |
