diff options
| author |   Shaoyun Liu <Shaoyun.Liu@amd.com> | 2018-03-23 16:20:41 -0500 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2018-09-26 21:09:16 -0500 |
| commit | c5892230d98b043b3948aec7ce60e636d19c8e50 (patch) | |
| tree | b3824ff44ea77d759204e4dd1d67b7e6c809870b /drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c | |
| parent | drm/amdgpu: remove unnecessary forward declaration (diff) | |
| download | wireguard-linux-c5892230d98b043b3948aec7ce60e636d19c8e50.tar.xz wireguard-linux-c5892230d98b043b3948aec7ce60e636d19c8e50.zip | |
drm/amdgpu: Doorbell assignment for 8 sdma user queue per engine
Change doorbell assignments to allow routing doorbells for 8 user
mode SDMA queues per engine.
Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-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 | 38 |
1 files changed, 23 insertions, 15 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c index 0f9947edb12a..079e32b650d4 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c @@ -123,7 +123,7 @@ static void amdgpu_doorbell_get_kfd_info(struct amdgpu_device *adev, void amdgpu_amdkfd_device_init(struct amdgpu_device *adev) { - int i; + int i, n; int last_valid_bit; if (adev->kfd) { struct kgd2kfd_shared_resources gpu_resources = { @@ -162,7 +162,15 @@ 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) { + + if (adev->asic_type < CHIP_VEGA10) { + kgd2kfd->device_init(adev->kfd, &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 @@ -170,20 +178,20 @@ void amdgpu_amdkfd_device_init(struct amdgpu_device *adev) * 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; + gpu_resources.sdma_doorbell[0][i] = + AMDGPU_DOORBELL64_sDMA_ENGINE0 + (i >> 1); + gpu_resources.sdma_doorbell[0][i+1] = + AMDGPU_DOORBELL64_sDMA_ENGINE0 + 0x200 + (i >> 1); + gpu_resources.sdma_doorbell[1][i] = + AMDGPU_DOORBELL64_sDMA_ENGINE1 + (i >> 1); + gpu_resources.sdma_doorbell[1][i+1] = + AMDGPU_DOORBELL64_sDMA_ENGINE1 + 0x200 + (i >> 1); } + /* Doorbells 0x0e0-0ff and 0x2e0-2ff are reserved for + * SDMA, IH and VCN. So don't use them for the CP. + */ + gpu_resources.reserved_doorbell_mask = 0x1e0; + gpu_resources.reserved_doorbell_val = 0x0e0; kgd2kfd->device_init(adev->kfd, &gpu_resources); } |