diff options
Diffstat (limited to 'arch/arm/include/asm/fixmap.h')
| -rw-r--r-- | arch/arm/include/asm/fixmap.h | 21 |
1 files changed, 4 insertions, 17 deletions
diff --git a/arch/arm/include/asm/fixmap.h b/arch/arm/include/asm/fixmap.h index bbae919..74124b0 100644 --- a/arch/arm/include/asm/fixmap.h +++ b/arch/arm/include/asm/fixmap.h @@ -1,24 +1,11 @@ #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_START 0xffc00000UL +#define FIXADDR_TOP 0xffe00000UL #define FIXADDR_SIZE (FIXADDR_TOP - FIXADDR_START) -#define FIX_KMAP_BEGIN 0 -#define FIX_KMAP_END (FIXADDR_SIZE >> PAGE_SHIFT) +#define FIX_KMAP_NR_PTES (FIXADDR_SIZE >> PAGE_SHIFT) #define __fix_to_virt(x) (FIXADDR_START + ((x) << PAGE_SHIFT)) #define __virt_to_fix(x) (((x) - FIXADDR_START) >> PAGE_SHIFT) @@ -27,7 +14,7 @@ extern void __this_fixmap_does_not_exist(void); static inline unsigned long fix_to_virt(const unsigned int idx) { - if (idx >= FIX_KMAP_END) + if (idx >= FIX_KMAP_NR_PTES) __this_fixmap_does_not_exist(); return __fix_to_virt(idx); } |