/**
* radeon_ib_get - request an IB (Indirect Buffer)
*
* @rdev: radeon_device pointer
* @ring: ring index the IB is associated with
* @ib: IB object returned
* @size: requested IB size
*
* Request an IB (all asics). IBs are allocated using the
* suballocator.
* Returns 0 on success, error on failure.
*/
int radeon_ib_get(struct radeon_device *rdev, int ring,
struct radeon_ib *ib, struct radeon_vm *vm,
unsigned size)
{
int i, r;
r = radeon_sa_bo_new(rdev, &rdev->ring_tmp_bo, &ib->sa_bo, size, 256, true);
if (r) {
dev_err(rdev->dev, "failed to get a new IB (%d)\n", r);
return r;
}
r = radeon_semaphore_create(rdev, &ib->semaphore);
if (r) {
return r;
}
ib->ring = ring;
ib->fence = NULL;
ib->ptr = radeon_sa_bo_cpu_addr(ib->sa_bo);
ib->vm = vm;
if (vm) {
/* ib pool is bound at RADEON_VA_IB_OFFSET in virtual address
* space and soffset is the offset inside the pool bo
*/
ib->gpu_addr = ib->sa_bo->soffset + RADEON_VA_IB_OFFSET;
} else {
ib->gpu_addr = radeon_sa_bo_gpu_addr(ib->sa_bo);
}
ib->is_const_ib = false;
for (i = 0; i < RADEON_NUM_RINGS; ++i)
ib->sync_to[i] = NULL;
return 0;
}
/**
* radeon_ib_get - request an IB (Indirect Buffer)
*
* @rdev: radeon_device pointer
* @ring: ring index the IB is associated with
* @ib: IB object returned
* @size: requested IB size
*
* Request an IB (all asics). IBs are allocated using the
* suballocator.
* Returns 0 on success, error on failure.
*/
int radeon_ib_get(struct radeon_device *rdev, int ring,
struct radeon_ib *ib, unsigned size)
{
int i, r;
r = radeon_sa_bo_new(rdev, &rdev->ring_tmp_bo, &ib->sa_bo, size, 256, true);
if (r) {
dev_err(rdev->dev, "failed to get a new IB (%d)\n", r);
return r;
}
r = radeon_semaphore_create(rdev, &ib->semaphore);
if (r) {
return r;
}
ib->ring = ring;
ib->fence = NULL;
ib->ptr = radeon_sa_bo_cpu_addr(ib->sa_bo);
ib->gpu_addr = radeon_sa_bo_gpu_addr(ib->sa_bo);
ib->vm_id = 0;
ib->is_const_ib = false;
for (i = 0; i < RADEON_NUM_RINGS; ++i)
ib->sync_to[i] = NULL;
return 0;
}
int radeon_semaphore_create(struct radeon_device *rdev,
struct radeon_semaphore **semaphore)
{
uint64_t *cpu_addr;
int i, r;
*semaphore = kmalloc(sizeof(struct radeon_semaphore), GFP_KERNEL);
if (*semaphore == NULL) {
return -ENOMEM;
}
r = radeon_sa_bo_new(rdev, &rdev->ring_tmp_bo, &(*semaphore)->sa_bo,
8 * RADEON_NUM_SYNCS, 8);
if (r) {
kfree(*semaphore);
*semaphore = NULL;
return r;
}
(*semaphore)->waiters = 0;
(*semaphore)->gpu_addr = radeon_sa_bo_gpu_addr((*semaphore)->sa_bo);
cpu_addr = radeon_sa_bo_cpu_addr((*semaphore)->sa_bo);
for (i = 0; i < RADEON_NUM_SYNCS; ++i)
cpu_addr[i] = 0;
for (i = 0; i < RADEON_NUM_RINGS; ++i)
(*semaphore)->sync_to[i] = NULL;
return 0;
}
int radeon_ib_get(struct radeon_device *rdev, int ring,
struct radeon_ib *ib, unsigned size)
{
int r;
r = radeon_sa_bo_new(rdev, &rdev->ring_tmp_bo, &ib->sa_bo, size, 256, true);
if (r) {
dev_err(rdev->dev, "failed to get a new IB (%d)\n", r);
return r;
}
r = radeon_fence_create(rdev, &ib->fence, ring);
if (r) {
dev_err(rdev->dev, "failed to create fence for new IB (%d)\n", r);
radeon_sa_bo_free(rdev, &ib->sa_bo, NULL);
return r;
}
ib->ptr = radeon_sa_bo_cpu_addr(ib->sa_bo);
ib->gpu_addr = radeon_sa_bo_gpu_addr(ib->sa_bo);
ib->vm_id = 0;
ib->is_const_ib = false;
ib->semaphore = NULL;
return 0;
}
int radeon_semaphore_create(struct radeon_device *rdev,
struct radeon_semaphore **semaphore)
{
int r;
*semaphore = kmalloc(sizeof(struct radeon_semaphore), GFP_KERNEL);
if (*semaphore == NULL) {
return -ENOMEM;
}
r = radeon_sa_bo_new(rdev, &rdev->ring_tmp_bo,
&(*semaphore)->sa_bo, 8, 8, true);
if (r) {
kfree(*semaphore);
*semaphore = NULL;
return r;
}
(*semaphore)->waiters = 0;
(*semaphore)->gpu_addr = radeon_sa_bo_gpu_addr((*semaphore)->sa_bo);
*((uint64_t*)radeon_sa_bo_cpu_addr((*semaphore)->sa_bo)) = 0;
return 0;
}
