/** * amdgpu_ib_get - request an IB (Indirect Buffer) * * @ring: ring index the IB is associated with * @size: requested IB size * @ib: IB object returned * * Request an IB (all asics). IBs are allocated using the * suballocator. * Returns 0 on success, error on failure. */ int amdgpu_ib_get(struct amdgpu_ring *ring, struct amdgpu_vm *vm, unsigned size, struct amdgpu_ib *ib) { struct amdgpu_device *adev = ring->adev; int r; if (size) { r = amdgpu_sa_bo_new(&adev->ring_tmp_bo, &ib->sa_bo, size, 256); if (r) { dev_err(adev->dev, "failed to get a new IB (%d)\n", r); return r; } ib->ptr = amdgpu_sa_bo_cpu_addr(ib->sa_bo); if (!vm) ib->gpu_addr = amdgpu_sa_bo_gpu_addr(ib->sa_bo); } amdgpu_sync_create(&ib->sync); ib->ring = ring; ib->vm = vm; return 0; }
int amdgpu_job_alloc(struct amdgpu_device *adev, unsigned num_ibs, struct amdgpu_job **job, struct amdgpu_vm *vm) { size_t size = sizeof(struct amdgpu_job); if (num_ibs == 0) return -EINVAL; size += sizeof(struct amdgpu_ib) * num_ibs; *job = kzalloc(size, GFP_KERNEL); if (!*job) return -ENOMEM; (*job)->adev = adev; (*job)->vm = vm; (*job)->ibs = (void *)&(*job)[1]; (*job)->num_ibs = num_ibs; amdgpu_sync_create(&(*job)->sync); return 0; }