Commit 116d902f authored by Thomas Zimmermann's avatar Thomas Zimmermann
Browse files

iosys-map: Add IOSYS_MAP_INIT_VADDR_IOMEM() 



Add IOSYS_MAP_INIT_VADDR_IOMEM() for static init of variables of type
struct iosys_map.

Signed-off-by: default avatarThomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: default avatarLucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: default avatarSam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220808125406.20752-2-tzimmermann@suse.de
parent 730c2bf4

include/linux/iosys-map.h

+14 −1
Original line number Diff line number Diff line
@@ -46,10 +46,13 @@ 
 *

 *	iosys_map_set_vaddr(&map, 0xdeadbeaf);

 *

 * To set an address in I/O memory, use iosys_map_set_vaddr_iomem().

 * To set an address in I/O memory, use IOSYS_MAP_INIT_VADDR_IOMEM() or

 * iosys_map_set_vaddr_iomem().

 *

 * .. code-block:: c

 *

 *	struct iosys_map map = IOSYS_MAP_INIT_VADDR_IOMEM(0xdeadbeaf);

 *

 *	iosys_map_set_vaddr_iomem(&map, 0xdeadbeaf);

 *

 * Instances of struct iosys_map do not have to be cleaned up, but
@@ -121,6 +124,16 @@ struct iosys_map { 
		.is_iomem = false,	\

	}



/**

 * IOSYS_MAP_INIT_VADDR_IOMEM - Initializes struct iosys_map to an address in I/O memory

 * @vaddr_iomem_:	An I/O-memory address

 */

#define IOSYS_MAP_INIT_VADDR_IOMEM(vaddr_iomem_)	\

	{						\

		.vaddr_iomem = (vaddr_iomem_),		\

		.is_iomem = true,			\

	}



/**

 * IOSYS_MAP_INIT_OFFSET - Initializes struct iosys_map from another iosys_map

 * @map_:	The dma-buf mapping structure to copy from