diff options
author | Felix Kuehling <Felix.Kuehling@amd.com> | 2018-02-06 20:32:39 -0500 |
---|---|---|
committer | Oded Gabbay <oded.gabbay@gmail.com> | 2018-02-06 20:32:39 -0500 |
commit | 4c660c8fbbf7b0d65a402f51e5f30a246cf3c44c (patch) | |
tree | 441252c68edab2ecff5ee27bceae0e2440edae1a /drivers/gpu/drm/amd | |
parent | a46a2cd103a863724d668c86dca86bd0d93a19e4 (diff) |
drm/amdgpu: Add submit IB function for KFD
This can be used for flushing caches when not using the HWS.
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')
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c | 55 | ||||
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h | 4 | ||||
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c | 1 | ||||
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c | 1 | ||||
-rw-r--r-- | drivers/gpu/drm/amd/include/kgd_kfd_interface.h | 8 |
5 files changed, 69 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c index 5a881107a15a..8a23aa8f9c73 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c @@ -367,6 +367,61 @@ uint64_t amdgpu_amdkfd_get_vram_usage(struct kgd_dev *kgd) return amdgpu_vram_mgr_usage(&adev->mman.bdev.man[TTM_PL_VRAM]); } +int amdgpu_amdkfd_submit_ib(struct kgd_dev *kgd, enum kgd_engine_type engine, + uint32_t vmid, uint64_t gpu_addr, + uint32_t *ib_cmd, uint32_t ib_len) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)kgd; + struct amdgpu_job *job; + struct amdgpu_ib *ib; + struct amdgpu_ring *ring; + struct dma_fence *f = NULL; + int ret; + + switch (engine) { + case KGD_ENGINE_MEC1: + ring = &adev->gfx.compute_ring[0]; + break; + case KGD_ENGINE_SDMA1: + ring = &adev->sdma.instance[0].ring; + break; + case KGD_ENGINE_SDMA2: + ring = &adev->sdma.instance[1].ring; + break; + default: + pr_err("Invalid engine in IB submission: %d\n", engine); + ret = -EINVAL; + goto err; + } + + ret = amdgpu_job_alloc(adev, 1, &job, NULL); + if (ret) + goto err; + + ib = &job->ibs[0]; + memset(ib, 0, sizeof(struct amdgpu_ib)); + + ib->gpu_addr = gpu_addr; + ib->ptr = ib_cmd; + ib->length_dw = ib_len; + /* This works for NO_HWS. TODO: need to handle without knowing VMID */ + job->vmid = vmid; + + ret = amdgpu_ib_schedule(ring, 1, ib, job, &f); + if (ret) { + DRM_ERROR("amdgpu: failed to schedule IB.\n"); + goto err_ib_sched; + } + + ret = dma_fence_wait(f, false); + +err_ib_sched: + dma_fence_put(f); + amdgpu_job_free(job); +err: + return ret; +} + bool amdgpu_amdkfd_is_kfd_vmid(struct amdgpu_device *adev, u32 vmid) { if (adev->kfd) { diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h index 05a228d60241..d7509b706b26 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h @@ -124,6 +124,10 @@ void amdgpu_amdkfd_device_probe(struct amdgpu_device *adev); void amdgpu_amdkfd_device_init(struct amdgpu_device *adev); void amdgpu_amdkfd_device_fini(struct amdgpu_device *adev); +int amdgpu_amdkfd_submit_ib(struct kgd_dev *kgd, enum kgd_engine_type engine, + uint32_t vmid, uint64_t gpu_addr, + uint32_t *ib_cmd, uint32_t ib_len); + struct kfd2kgd_calls *amdgpu_amdkfd_gfx_7_get_functions(void); struct kfd2kgd_calls *amdgpu_amdkfd_gfx_8_0_get_functions(void); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c index 65783d1eddca..7485c376b90e 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c @@ -217,6 +217,7 @@ static const struct kfd2kgd_calls kfd2kgd = { .restore_process_bos = amdgpu_amdkfd_gpuvm_restore_process_bos, .invalidate_tlbs = invalidate_tlbs, .invalidate_tlbs_vmid = invalidate_tlbs_vmid, + .submit_ib = amdgpu_amdkfd_submit_ib, }; struct kfd2kgd_calls *amdgpu_amdkfd_gfx_7_get_functions(void) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c index 1b5bf1353f0c..7be453494423 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c @@ -177,6 +177,7 @@ static const struct kfd2kgd_calls kfd2kgd = { .restore_process_bos = amdgpu_amdkfd_gpuvm_restore_process_bos, .invalidate_tlbs = invalidate_tlbs, .invalidate_tlbs_vmid = invalidate_tlbs_vmid, + .submit_ib = amdgpu_amdkfd_submit_ib, }; struct kfd2kgd_calls *amdgpu_amdkfd_gfx_8_0_get_functions(void) diff --git a/drivers/gpu/drm/amd/include/kgd_kfd_interface.h b/drivers/gpu/drm/amd/include/kgd_kfd_interface.h index 5984fec78be4..1e5c22ceb256 100644 --- a/drivers/gpu/drm/amd/include/kgd_kfd_interface.h +++ b/drivers/gpu/drm/amd/include/kgd_kfd_interface.h @@ -240,6 +240,10 @@ struct tile_config { * * @invalidate_tlbs_vmid: Invalidate TLBs for a specific VMID * + * @submit_ib: Submits an IB to the engine specified by inserting the + * IB to the corresponding ring (ring type). The IB is executed with the + * specified VMID in a user mode context. + * * This structure contains function pointers to services that the kgd driver * provides to amdkfd driver. * @@ -352,6 +356,10 @@ struct kfd2kgd_calls { int (*invalidate_tlbs)(struct kgd_dev *kgd, uint16_t pasid); int (*invalidate_tlbs_vmid)(struct kgd_dev *kgd, uint16_t vmid); + + int (*submit_ib)(struct kgd_dev *kgd, enum kgd_engine_type engine, + uint32_t vmid, uint64_t gpu_addr, + uint32_t *ib_cmd, uint32_t ib_len); }; /** |