iomap__pages_8h_source.html

#ifndef _IPXE_IOMAP_PAGES_H

#define _IPXE_IOMAP_PAGES_H


/** @file

 *

 * I/O mapping API using page tables

 *

 */


FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );

FILE_SECBOOT ( PERMITTED );


#ifdef IOMAP_PAGES

#define IOMAP_PREFIX_pages

#else

#define IOMAP_PREFIX_pages __pages_

#endif


static inline __always_inline unsigned long


IOMAP_INLINE ( pages, io_to_bus ) ( volatile const void *io_addr ) {

        /* Not easy to do; just return the CPU address for debugging purposes */

        return ( ( intptr_t ) io_addr );

}


#endif /* _IPXE_IOMAP_PAGES_H */

intptr_t
unsigned long intptr_t
Definition stdint.h:21

__always_inline
#define __always_inline
Declare a function to be always inline.
Definition compiler.h:611

FILE_LICENCE
#define FILE_LICENCE(_licence)
Declare a particular licence as applying to a file.
Definition compiler.h:896

FILE_SECBOOT
#define FILE_SECBOOT(_status)
Declare a file's UEFI Secure Boot permission status.
Definition compiler.h:926

IOMAP_INLINE
#define IOMAP_INLINE(_subsys, _api_func)
Calculate static inline I/O mapping API function name.
Definition iomap.h:26

io_to_bus
unsigned long io_to_bus(volatile const void *io_addr)
Convert I/O address to bus address (for debug only)