/**
* 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;
}
/**
* 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_device *adev, struct amdgpu_vm *vm,
unsigned size, struct amdgpu_ib *ib)
{
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);
}
return 0;
}
int amdgpu_semaphore_create(struct amdgpu_device *adev,
struct amdgpu_semaphore **semaphore)
{
int r;
*semaphore = kmalloc(sizeof(struct amdgpu_semaphore), GFP_KERNEL);
if (*semaphore == NULL) {
return -ENOMEM;
}
r = amdgpu_sa_bo_new(adev, &adev->ring_tmp_bo,
&(*semaphore)->sa_bo, 8, 8);
if (r) {
kfree(*semaphore);
*semaphore = NULL;
return r;
}
(*semaphore)->waiters = 0;
(*semaphore)->gpu_addr = amdgpu_sa_bo_gpu_addr((*semaphore)->sa_bo);
*((uint64_t *)amdgpu_sa_bo_cpu_addr((*semaphore)->sa_bo)) = 0;
return 0;
}
