diff options
Diffstat (limited to 'drivers/gpu/ion/ion_priv.h')
| -rw-r--r-- | drivers/gpu/ion/ion_priv.h | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/drivers/gpu/ion/ion_priv.h b/drivers/gpu/ion/ion_priv.h index 44db865d1e1..1155994fc8e 100644 --- a/drivers/gpu/ion/ion_priv.h +++ b/drivers/gpu/ion/ion_priv.h @@ -45,9 +45,8 @@ struct ion_buffer *ion_handle_buffer(struct ion_handle *handle); * @vaddr: the kenrel mapping if kmap_cnt is not zero * @dmap_cnt: number of times the buffer is mapped for dma * @sg_table: the sg table for the buffer if dmap_cnt is not zero - * @dirty: bitmask representing which pages of this buffer have - * been dirtied by the cpu and need cache maintenance - * before dma + * @pages: flat array of pages in the buffer -- used by fault + * handler and only valid for buffers that are faulted in * @vmas: list of vma's mapping this buffer * @handle_count: count of handles referencing this buffer * @task_comm: taskcomm of last client to reference this buffer in a @@ -74,7 +73,7 @@ struct ion_buffer { void *vaddr; int dmap_cnt; struct sg_table *sg_table; - unsigned long *dirty; + struct page **pages; struct list_head vmas; /* used to track orphaned buffers */ int handle_count; @@ -213,6 +212,19 @@ int ion_heap_map_user(struct ion_heap *, struct ion_buffer *, int ion_heap_buffer_zero(struct ion_buffer *buffer); /** + * ion_heap_alloc_pages - allocate pages from alloc_pages + * @buffer: the buffer to allocate for, used to extract the flags + * @gfp_flags: the gfp_t for the allocation + * @order: the order of the allocatoin + * + * This funciton allocations from alloc pages and also does any other + * necessary operations based on the buffer->flags. For buffers which + * will be faulted in the pages are split using split_page + */ +struct page *ion_heap_alloc_pages(struct ion_buffer *buffer, gfp_t gfp_flags, + unsigned int order); + +/** * ion_heap_init_deferred_free -- initialize deferred free functionality * @heap: the heap * |