diff options
| author | Yong Zhao <Yong.Zhao@amd.com> | 2019-01-09 23:31:14 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-02-18 18:00:50 -0500 |
| commit | 234441dd49bcd917d0acd23290d1c49f332a816b (patch) | |
| tree | 1db39283533efb180baa2013baccc7cc2a10690f /drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c | |
| parent | 1f86805adc3432e92e7d87e1ff5da9826ef56eab (diff) | |
drm/amdkfd: Optimize out sdma doorbell array in kgd2kfd_shared_resources
We can directly calculate sdma doorbell indexes in the process doorbell
pages through the doorbell_index structure in amdgpu_device, so no need
to cache them in kgd2kfd_shared_resources any more. This alleviates the
adaptation needs when new SDMA configurations are introduced.
Signed-off-by: Yong Zhao <Yong.Zhao@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@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 | 41 |
1 files changed, 10 insertions, 31 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c index 30e2b371578e..fe1d7368c1e6 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c @@ -131,7 +131,7 @@ static void amdgpu_doorbell_get_kfd_info(struct amdgpu_device *adev, void amdgpu_amdkfd_device_init(struct amdgpu_device *adev) { - int i, n; + int i; int last_valid_bit; if (adev->kfd.dev) { @@ -142,7 +142,9 @@ void amdgpu_amdkfd_device_init(struct amdgpu_device *adev) .gpuvm_size = min(adev->vm_manager.max_pfn << AMDGPU_GPU_PAGE_SHIFT, AMDGPU_GMC_HOLE_START), - .drm_render_minor = adev->ddev->render->index + .drm_render_minor = adev->ddev->render->index, + .sdma_doorbell_idx = adev->doorbell_index.sdma_engine, + }; /* this is going to have a few of the MSBs set that we need to @@ -172,31 +174,6 @@ void amdgpu_amdkfd_device_init(struct amdgpu_device *adev) &gpu_resources.doorbell_aperture_size, &gpu_resources.doorbell_start_offset); - if (adev->asic_type < CHIP_VEGA10) { - kgd2kfd_device_init(adev->kfd.dev, &gpu_resources); - return; - } - - n = (adev->asic_type < CHIP_VEGA20) ? 2 : 8; - - for (i = 0; i < n; i += 2) { - /* 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][i] = - adev->doorbell_index.sdma_engine[0] + (i >> 1); - gpu_resources.sdma_doorbell[0][i+1] = - adev->doorbell_index.sdma_engine[0] + 0x200 + (i >> 1); - gpu_resources.sdma_doorbell[1][i] = - adev->doorbell_index.sdma_engine[1] + (i >> 1); - gpu_resources.sdma_doorbell[1][i+1] = - adev->doorbell_index.sdma_engine[1] + 0x200 + (i >> 1); - } - /* Since SOC15, BIF starts to statically use the * lower 12 bits of doorbell addresses for routing * based on settings in registers like @@ -205,10 +182,12 @@ void amdgpu_amdkfd_device_init(struct amdgpu_device *adev) * 12 bits of its address has to be outside the range * set for SDMA, VCN, and IH blocks. */ - gpu_resources.non_cp_doorbells_start = - adev->doorbell_index.first_non_cp; - gpu_resources.non_cp_doorbells_end = - adev->doorbell_index.last_non_cp; + if (adev->asic_type >= CHIP_VEGA10) { + gpu_resources.non_cp_doorbells_start = + adev->doorbell_index.first_non_cp; + gpu_resources.non_cp_doorbells_end = + adev->doorbell_index.last_non_cp; + } kgd2kfd_device_init(adev->kfd.dev, &gpu_resources); } |