static int
nouveau_bo_move_flips(struct ttm_buffer_object *bo, bool evict, bool intr,
bool no_wait_reserve, bool no_wait_gpu,
struct ttm_mem_reg *new_mem)
{
u32 placement_memtype = TTM_PL_FLAG_TT | TTM_PL_MASK_CACHING;
struct ttm_placement placement;
struct ttm_mem_reg tmp_mem;
int ret;
placement.fpfn = placement.lpfn = 0;
placement.num_placement = placement.num_busy_placement = 1;
placement.placement = placement.busy_placement = &placement_memtype;
tmp_mem = *new_mem;
tmp_mem.mm_node = NULL;
ret = ttm_bo_mem_space(bo, &placement, &tmp_mem, intr, no_wait_reserve, no_wait_gpu);
if (ret)
return ret;
ret = ttm_bo_move_ttm(bo, true, no_wait_reserve, no_wait_gpu, &tmp_mem);
if (ret)
goto out;
ret = nouveau_bo_move_m2mf(bo, true, intr, no_wait_reserve, no_wait_gpu, new_mem);
if (ret)
goto out;
out:
ttm_bo_mem_put(bo, &tmp_mem);
return ret;
}
static int ttm_bo_evict(struct ttm_buffer_object *bo, bool interruptible,
bool no_wait_reserve, bool no_wait_gpu)
{
struct ttm_bo_device *bdev = bo->bdev;
struct ttm_mem_reg evict_mem;
struct ttm_placement placement;
int ret = 0;
spin_lock(&bdev->fence_lock);
ret = ttm_bo_wait(bo, false, interruptible, no_wait_gpu);
spin_unlock(&bdev->fence_lock);
if (unlikely(ret != 0)) {
if (ret != -ERESTARTSYS) {
printk(KERN_ERR TTM_PFX
"Failed to expire sync object before "
"buffer eviction.\n");
}
goto out;
}
BUG_ON(!atomic_read(&bo->reserved));
evict_mem = bo->mem;
evict_mem.mm_node = NULL;
evict_mem.bus.io_reserved_vm = false;
evict_mem.bus.io_reserved_count = 0;
placement.fpfn = 0;
placement.lpfn = 0;
placement.num_placement = 0;
placement.num_busy_placement = 0;
bdev->driver->evict_flags(bo, &placement);
ret = ttm_bo_mem_space(bo, &placement, &evict_mem, interruptible,
no_wait_reserve, no_wait_gpu);
if (ret) {
if (ret != -ERESTARTSYS) {
printk(KERN_ERR TTM_PFX
"Failed to find memory space for "
"buffer 0x%p eviction.\n", bo);
ttm_bo_mem_space_debug(bo, &placement);
}
goto out;
}
ret = ttm_bo_handle_move_mem(bo, &evict_mem, true, interruptible,
no_wait_reserve, no_wait_gpu);
if (ret) {
if (ret != -ERESTARTSYS)
printk(KERN_ERR TTM_PFX "Buffer eviction failed\n");
ttm_bo_mem_put(bo, &evict_mem);
goto out;
}
bo->evicted = true;
out:
return ret;
}
static int radeon_move_vram_ram(struct ttm_buffer_object *bo,
bool evict, bool interruptible,
bool no_wait_reserve, bool no_wait_gpu,
struct ttm_mem_reg *new_mem)
{
struct radeon_device *rdev;
struct ttm_mem_reg *old_mem = &bo->mem;
struct ttm_mem_reg tmp_mem;
u32 placements;
struct ttm_placement placement;
int r;
rdev = radeon_get_rdev(bo->bdev);
tmp_mem = *new_mem;
tmp_mem.mm_node = NULL;
placement.fpfn = 0;
placement.lpfn = 0;
placement.num_placement = 1;
placement.placement = &placements;
placement.num_busy_placement = 1;
placement.busy_placement = &placements;
placements = TTM_PL_MASK_CACHING | TTM_PL_FLAG_TT;
r = ttm_bo_mem_space(bo, &placement, &tmp_mem,
interruptible, no_wait_reserve, no_wait_gpu);
if (unlikely(r)) {
return r;
}
r = ttm_tt_set_placement_caching(bo->ttm, tmp_mem.placement);
if (unlikely(r)) {
goto out_cleanup;
}
r = ttm_tt_bind(bo->ttm, &tmp_mem);
if (unlikely(r)) {
goto out_cleanup;
}
r = radeon_move_blit(bo, true, no_wait_reserve, no_wait_gpu, &tmp_mem, old_mem);
if (unlikely(r)) {
goto out_cleanup;
}
r = ttm_bo_move_ttm(bo, true, no_wait_reserve, no_wait_gpu, new_mem);
out_cleanup:
ttm_bo_mem_put(bo, &tmp_mem);
return r;
}
static void ttm_bo_cleanup_memtype_use(struct ttm_buffer_object *bo)
{
if (bo->ttm) {
ttm_tt_unbind(bo->ttm);
ttm_tt_destroy(bo->ttm);
bo->ttm = NULL;
}
ttm_bo_mem_put(bo, &bo->mem);
atomic_set(&bo->reserved, 0);
/*
* Make processes trying to reserve really pick it up.
*/
smp_mb__after_atomic_dec();
wake_up_all(&bo->event_queue);
}
int ttm_bo_move_buffer(struct ttm_buffer_object *bo,
struct ttm_placement *placement,
bool interruptible, bool no_wait_reserve,
bool no_wait_gpu)
{
int ret = 0;
struct ttm_mem_reg mem;
struct ttm_bo_device *bdev = bo->bdev;
BUG_ON(!atomic_read(&bo->reserved));
/*
* FIXME: It's possible to pipeline buffer moves.
* Have the driver move function wait for idle when necessary,
* instead of doing it here.
*/
spin_lock(&bdev->fence_lock);
ret = ttm_bo_wait(bo, false, interruptible, no_wait_gpu);
spin_unlock(&bdev->fence_lock);
if (ret)
return ret;
mem.num_pages = bo->num_pages;
mem.size = mem.num_pages << PAGE_SHIFT;
mem.page_alignment = bo->mem.page_alignment;
mem.bus.io_reserved_vm = false;
mem.bus.io_reserved_count = 0;
/*
* Determine where to move the buffer.
*/
ret = ttm_bo_mem_space(bo, placement, &mem, interruptible, no_wait_reserve, no_wait_gpu);
if (ret)
goto out_unlock;
ret = ttm_bo_handle_move_mem(bo, &mem, false, interruptible, no_wait_reserve, no_wait_gpu);
out_unlock:
if (ret && mem.mm_node)
ttm_bo_mem_put(bo, &mem);
return ret;
}
void ttm_bo_free_old_node(struct ttm_buffer_object *bo)
{
ttm_bo_mem_put(bo, &bo->mem);
}
