diff options
Diffstat (limited to 'sys/i386/include/bus.h')
| -rw-r--r-- | sys/i386/include/bus.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/sys/i386/include/bus.h b/sys/i386/include/bus.h index f1af2cf6168c..6d6d36fd4031 100644 --- a/sys/i386/include/bus.h +++ b/sys/i386/include/bus.h @@ -3,4 +3,26 @@ */ /* $FreeBSD$ */ +#ifndef _MACHINE_BUS_H_ +#define _MACHINE_BUS_H_ + #include <x86/bus.h> + +/* + * The functions: + * bus_space_read_8 + * bus_space_read_region_8 + * bus_space_write_8 + * bus_space_write_multi_8 + * bus_space_write_region_8 + * bus_space_set_multi_8 + * bus_space_set_region_8 + * bus_space_copy_region_8 + * bus_space_read_multi_8 + * are unimplemented for i386 because there is no way to do a 64-bit move in + * this architecture. It is possible to do two 32-bit moves, but this is + * not atomic and may have hardware dependencies that should be fully + * understood. + */ + +#endif /*_MACHINE_BUS_H_*/ |