}
EXPORT_SYMBOL(ttm_bo_init);
-static size_t ttm_bo_acc_size(struct ttm_bo_device *bdev,
- unsigned long bo_size,
- unsigned struct_size)
-{
- unsigned npages = (PAGE_ALIGN(bo_size)) >> PAGE_SHIFT;
- size_t size = 0;
-
- size += ttm_round_pot(struct_size);
- size += ttm_round_pot(npages * sizeof(void *));
- size += ttm_round_pot(sizeof(struct ttm_tt));
- return size;
-}
-
size_t ttm_bo_dma_acc_size(struct ttm_bo_device *bdev,
unsigned long bo_size,
unsigned struct_size)
}
EXPORT_SYMBOL(ttm_bo_dma_acc_size);
-int ttm_bo_create(struct ttm_bo_device *bdev,
- unsigned long size,
- enum ttm_bo_type type,
- struct ttm_placement *placement,
- uint32_t page_alignment,
- bool interruptible,
- struct ttm_buffer_object **p_bo)
-{
- struct ttm_buffer_object *bo;
- size_t acc_size;
- int ret;
-
- bo = kzalloc(sizeof(*bo), GFP_KERNEL);
- if (unlikely(bo == NULL))
- return -ENOMEM;
-
- acc_size = ttm_bo_acc_size(bdev, size, sizeof(struct ttm_buffer_object));
- ret = ttm_bo_init(bdev, bo, size, type, placement, page_alignment,
- interruptible, acc_size,
- NULL, NULL, NULL);
- if (likely(ret == 0))
- *p_bo = bo;
-
- return ret;
-}
-EXPORT_SYMBOL(ttm_bo_create);
-
int ttm_bo_evict_mm(struct ttm_bo_device *bdev, unsigned mem_type)
{
struct ttm_resource_manager *man = ttm_manager_type(bdev, mem_type);
void (*destroy) (struct ttm_buffer_object *));
/**
- * ttm_bo_create
- *
- * @bdev: Pointer to a ttm_bo_device struct.
- * @size: Requested size of buffer object.
- * @type: Requested type of buffer object.
- * @placement: Initial placement.
- * @page_alignment: Data alignment in pages.
- * @interruptible: If needing to sleep while waiting for GPU resources,
- * sleep interruptible.
- * @p_bo: On successful completion *p_bo points to the created object.
- *
- * This function allocates a ttm_buffer_object, and then calls ttm_bo_init
- * on that object. The destroy function is set to kfree().
- * Returns
- * -ENOMEM: Out of memory.
- * -EINVAL: Invalid placement flags.
- * -ERESTARTSYS: Interrupted by signal while waiting for resources.
- */
-int ttm_bo_create(struct ttm_bo_device *bdev, unsigned long size,
- enum ttm_bo_type type, struct ttm_placement *placement,
- uint32_t page_alignment, bool interruptible,
- struct ttm_buffer_object **p_bo);
-
-/**
* ttm_bo_evict_mm
*
* @bdev: Pointer to a ttm_bo_device struct.