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ttm: Introduce a placeholder for DMA (bus) addresses.

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This is right now limited to only non-pool constructs.

[v2: Fixed indentation issues, add review-by tag]

Reviewed-by: Thomas Hellstrom <thomas@shipmail.org>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Tested-by: Ian Campbell <ian.campbell@citrix.com>
This commit is contained in:
Konrad Rzeszutek Wilk
2010-11-29 13:52:18 -05:00
parent e53beacd23
commit f9820a46dd
4 changed files with 21 additions and 7 deletions
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8
include/drm/ttm/ttm_page_alloc.h
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@@ -36,11 +36,13 @@
* @flags: ttm flags for page allocation.
* @cstate: ttm caching state for the page.
* @count: number of pages to allocate.
* @dma_address: The DMA (bus) address of pages (if TTM_PAGE_FLAG_DMA32 set).
*/
int ttm_get_pages(struct list_head *pages,
int flags,
enum ttm_caching_state cstate,
unsigned count);
unsigned count,
dma_addr_t *dma_address);
/**
* Put linked list of pages to pool.
*
@@ -49,11 +51,13 @@ int ttm_get_pages(struct list_head *pages,
* count.
* @flags: ttm flags for page allocation.
* @cstate: ttm caching state.
* @dma_address: The DMA (bus) address of pages (if TTM_PAGE_FLAG_DMA32 set).
*/
void ttm_put_pages(struct list_head *pages,
unsigned page_count,
int flags,
enum ttm_caching_state cstate);
enum ttm_caching_state cstate,
dma_addr_t *dma_address);
/**
* Initialize pool allocator.
*/