diff options
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 fcd10dbd121c..cd0e8f192e6a 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); } |