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-rw-r--r--include/drm/ttm/ttm_page_alloc.h77
1 files changed, 51 insertions, 26 deletions
diff --git a/include/drm/ttm/ttm_page_alloc.h b/include/drm/ttm/ttm_page_alloc.h
index 8062890..5fe2740 100644
--- a/include/drm/ttm/ttm_page_alloc.h
+++ b/include/drm/ttm/ttm_page_alloc.h
@@ -30,45 +30,70 @@
#include "ttm_memory.h"
/**
- * Get count number of pages from pool to pages list.
+ * Initialize pool allocator.
+ */
+int ttm_page_alloc_init(struct ttm_mem_global *glob, unsigned max_pages);
+/**
+ * Free pool allocator.
+ */
+void ttm_page_alloc_fini(void);
+
+/**
+ * ttm_pool_populate:
+ *
+ * @ttm: The struct ttm_tt to contain the backing pages.
*
- * @pages: heado of empty linked list where pages are filled.
- * @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).
+ * Add backing pages to all of @ttm
*/
-int ttm_get_pages(struct list_head *pages,
- int flags,
- enum ttm_caching_state cstate,
- unsigned count,
- dma_addr_t *dma_address);
+extern int ttm_pool_populate(struct ttm_tt *ttm);
+
/**
- * Put linked list of pages to pool.
+ * ttm_pool_unpopulate:
+ *
+ * @ttm: The struct ttm_tt which to free backing pages.
*
- * @pages: list of pages to free.
- * @page_count: number of pages in the list. Zero can be passed for unknown
- * 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).
+ * Free all pages of @ttm
*/
-void ttm_put_pages(struct list_head *pages,
- unsigned page_count,
- int flags,
- enum ttm_caching_state cstate,
- dma_addr_t *dma_address);
+extern void ttm_pool_unpopulate(struct ttm_tt *ttm);
+
+/**
+ * Output the state of pools to debugfs file
+ */
+extern int ttm_page_alloc_debugfs(struct seq_file *m, void *data);
+
+
+#ifdef CONFIG_SWIOTLB
/**
* Initialize pool allocator.
*/
-int ttm_page_alloc_init(struct ttm_mem_global *glob, unsigned max_pages);
+int ttm_dma_page_alloc_init(struct ttm_mem_global *glob, unsigned max_pages);
+
/**
* Free pool allocator.
*/
-void ttm_page_alloc_fini(void);
+void ttm_dma_page_alloc_fini(void);
/**
* Output the state of pools to debugfs file
*/
-extern int ttm_page_alloc_debugfs(struct seq_file *m, void *data);
+extern int ttm_dma_page_alloc_debugfs(struct seq_file *m, void *data);
+
+extern int ttm_dma_populate(struct ttm_dma_tt *ttm_dma, struct device *dev);
+extern void ttm_dma_unpopulate(struct ttm_dma_tt *ttm_dma, struct device *dev);
+
+#else
+static inline int ttm_dma_page_alloc_init(struct ttm_mem_global *glob,
+ unsigned max_pages)
+{
+ return -ENODEV;
+}
+
+static inline void ttm_dma_page_alloc_fini(void) { return; }
+
+static inline int ttm_dma_page_alloc_debugfs(struct seq_file *m, void *data)
+{
+ return 0;
+}
+#endif
+
#endif