#ifndef _ASM_FIXMAP_H#define _ASM_FIXMAP_H /* * Nothing too fancy for now. * * On ARM we already have well known fixed virtual addresses imposed by * the architecture such as the vector page which is located at 0xffff0000, * therefore a second level page table is already allocated covering * 0xfff00000 upwards. * * The cache flushing code in proc-xscale.S uses the virtual area between * 0xfffe0000 and 0xfffeffff. */ #define FIXADDR_START		0xfff00000UL#define FIXADDR_TOP		0xfffe0000UL#define FIXADDR_SIZE		(FIXADDR_TOP - FIXADDR_START) #define FIX_KMAP_BEGIN		0#define FIX_KMAP_END		(FIXADDR_SIZE >> PAGE_SHIFT) #define __fix_to_virt(x)	(FIXADDR_START + ((x) << PAGE_SHIFT))#define __virt_to_fix(x)	(((x) - FIXADDR_START) >> PAGE_SHIFT) extern void __this_fixmap_does_not_exist(void); static inline unsigned long fix_to_virt(const unsigned int idx){	if (idx >= FIX_KMAP_END)		__this_fixmap_does_not_exist();	return __fix_to_virt(idx);} static inline unsigned int virt_to_fix(const unsigned long vaddr){	BUG_ON(vaddr >= FIXADDR_TOP || vaddr < FIXADDR_START);	return __virt_to_fix(vaddr);} #endif