include/drm/ttm/ttm_pool.h

Source file repositories/reference/linux-study-clean/include/drm/ttm/ttm_pool.h

File Facts

System
Linux kernel
Corpus path
include/drm/ttm/ttm_pool.h
Extension
.h
Size
3151 bytes
Lines
101
Domain
Repository Root And Misc
Bucket
include
Inferred role
Repository Root And Misc: implementation source
Status
source implementation candidate

Why This File Exists

Top-level or miscellaneous repository surface. Use this as map coverage unless a later manual pass promotes the file into a deeper subsystem dossier.

Dependency Surface

Detected Declarations

Annotated Snippet

struct ttm_pool_type {
	struct ttm_pool *pool;
	unsigned int order;
	enum ttm_caching caching;

	struct list_head shrinker_list;

	struct list_lru pages;
};

/**
 * struct ttm_pool - Pool for all caching and orders
 *
 * @dev: the device we allocate pages for
 * @nid: which numa node to use
 * @alloc_flags: TTM_ALLOCATION_POOL_* flags
 * @caching: pools for each caching/order
 */
struct ttm_pool {
	struct device *dev;
	int nid;

	unsigned int alloc_flags;

	struct {
		struct ttm_pool_type orders[NR_PAGE_ORDERS];
	} caching[TTM_NUM_CACHING_TYPES];
};

int ttm_pool_alloc(struct ttm_pool *pool, struct ttm_tt *tt,
		   struct ttm_operation_ctx *ctx);
void ttm_pool_free(struct ttm_pool *pool, struct ttm_tt *tt);

void ttm_pool_init(struct ttm_pool *pool, struct device *dev,
		   int nid, unsigned int alloc_flags);
void ttm_pool_fini(struct ttm_pool *pool);

int ttm_pool_debugfs(struct ttm_pool *pool, struct seq_file *m);

void ttm_pool_drop_backed_up(struct ttm_tt *tt);

long ttm_pool_backup(struct ttm_pool *pool, struct ttm_tt *ttm,
		     const struct ttm_backup_flags *flags);
int ttm_pool_restore_and_alloc(struct ttm_pool *pool, struct ttm_tt *tt,
			       const struct ttm_operation_ctx *ctx);

int ttm_pool_mgr_init(unsigned long num_pages);
void ttm_pool_mgr_fini(void);

#endif

Annotation

Implementation Notes