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Merge branch 'stable/ttm.pci-api.v5' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen into drm-next

Browse Source 
* 'stable/ttm.pci-api.v5' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  ttm: Include the 'struct dev' when using the DMA API.
  nouveau/ttm/PCIe: Use dma_addr if TTM has set it.
  radeon/ttm/PCIe: Use dma_addr if TTM has set it.
  ttm: Expand (*populate) to support an array of DMA addresses.
  ttm: Utilize the DMA API for pages that have TTM_PAGE_FLAG_DMA32 set.
  ttm: Introduce a placeholder for DMA (bus) addresses.
This commit is contained in:
Dave Airlie
2011-02-23 12:06:39 +10:00
parent 7811bddb66 5a893fc28f
commit de1e7cd63a
12 changed files with 119 additions and 36 deletions
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7
include/drm/ttm/ttm_bo_driver.h
View File

@@ -50,13 +50,15 @@ struct ttm_backend_func {
* @pages: Array of pointers to ttm pages.
* @dummy_read_page: Page to be used instead of NULL pages in the
* array @pages.
* @dma_addrs: Array of DMA (bus) address of the ttm pages.
*
* Populate the backend with ttm pages. Depending on the backend,
* it may or may not copy the @pages array.
*/
int (*populate) (struct ttm_backend *backend,
unsigned long num_pages, struct page **pages,
struct page *dummy_read_page);
struct page *dummy_read_page,
dma_addr_t *dma_addrs);
/**
* struct ttm_backend_func member clear
*
@@ -149,6 +151,7 @@ enum ttm_caching_state {
* @swap_storage: Pointer to shmem struct file for swap storage.
* @caching_state: The current caching state of the pages.
* @state: The current binding state of the pages.
* @dma_address: The DMA (bus) addresses of the pages (if TTM_PAGE_FLAG_DMA32)
*
* This is a structure holding the pages, caching- and aperture binding
* status for a buffer object that isn't backed by fixed (VRAM / AGP)
@@ -173,6 +176,7 @@ struct ttm_tt {
tt_unbound,
tt_unpopulated,
} state;
dma_addr_t *dma_address;
};
#define TTM_MEMTYPE_FLAG_FIXED (1 << 0) /* Fixed (on-card) PCI memory */
@@ -547,6 +551,7 @@ struct ttm_bo_device {
struct list_head device_list;
struct ttm_bo_global *glob;
struct ttm_bo_driver *driver;
struct device *dev;
rwlock_t vm_lock;
struct ttm_mem_type_manager man[TTM_NUM_MEM_TYPES];
spinlock_t fence_lock;

12
include/drm/ttm/ttm_page_alloc.h
View File

@@ -36,11 +36,15 @@
* @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).
* @dev: struct device for appropiate DMA accounting.
*/
int ttm_get_pages(struct list_head *pages,
int flags,
enum ttm_caching_state cstate,
unsigned count);
unsigned count,
dma_addr_t *dma_address,
struct device *dev);
/**
* Put linked list of pages to pool.
*
@@ -49,11 +53,15 @@ 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).
* @dev: struct device for appropiate DMA accounting.
*/
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,
struct device *dev);
/**
* Initialize pool allocator.
*/