#ifndef _ASM_FIXMAP_H #define _ASM_FIXMAP_H /* * Allocate a 8 Mb temporary mapping area for copy_user_page/clear_user_page. * This area needs to be aligned on a 8 Mb boundary. * * FIXME: * * For PA-RISC, this has no meaning. It is starting to be used on x86 * for vsyscalls. PA will probably do this using space registers. */ /* This TMPALIAS_MAP_START reserves some of the memory where the * FIXMAP region is on x86. It's only real use is to constrain * VMALLOC_END (see pktable.h) */ #define TMPALIAS_MAP_START (__PAGE_OFFSET - 0x01000000) #endif