diff options
Diffstat (limited to 'include/blk.h')
| -rw-r--r-- | include/blk.h | 27 |
1 files changed, 19 insertions, 8 deletions
diff --git a/include/blk.h b/include/blk.h index 2c9c7985a88..95e86e2d5d1 100644 --- a/include/blk.h +++ b/include/blk.h @@ -7,6 +7,7 @@ #ifndef BLK_H #define BLK_H +#include <bouncebuf.h> #include <dm/uclass-id.h> #include <efi.h> @@ -104,12 +105,6 @@ struct blk_desc { (PAD_SIZE(size, blk_desc->blksz)) #if CONFIG_IS_ENABLED(BLOCK_CACHE) - -/** - * blkcache_init() - initialize the block cache list pointers - */ -int blkcache_init(void); - /** * blkcache_read() - attempt to read a set of blocks from cache * @@ -260,9 +255,25 @@ struct blk_ops { * @return 0 if OK, -ve on error */ int (*select_hwpart)(struct udevice *dev, int hwpart); -}; -#define blk_get_ops(dev) ((struct blk_ops *)(dev)->driver->ops) +#if IS_ENABLED(CONFIG_BOUNCE_BUFFER) + /** + * buffer_aligned() - test memory alignment of block operation buffer + * + * Some devices have limited DMA capabilities and require that the + * buffers passed to them fit specific properties. This optional + * callback can be used to indicate whether a buffer alignment is + * suitable for the device DMA or not, and trigger use of generic + * bounce buffer implementation to help use of unsuitable buffers + * at the expense of performance degradation. + * + * @dev: Block device associated with the request + * @state: Bounce buffer state + * @return 1 if OK, 0 if unaligned + */ + int (*buffer_aligned)(struct udevice *dev, struct bounce_buffer *state); +#endif /* CONFIG_BOUNCE_BUFFER */ +}; /* * These functions should take struct udevice instead of struct blk_desc, |