diff options
Diffstat (limited to 'arch/mips/include/asm/fixmap.h')
| -rw-r--r-- | arch/mips/include/asm/fixmap.h | 46 |
1 files changed, 4 insertions, 42 deletions
diff --git a/arch/mips/include/asm/fixmap.h b/arch/mips/include/asm/fixmap.h index dfaaf493e9d4..b037718d7e8b 100644 --- a/arch/mips/include/asm/fixmap.h +++ b/arch/mips/include/asm/fixmap.h @@ -17,7 +17,7 @@ #include <spaces.h> #ifdef CONFIG_HIGHMEM #include <linux/threads.h> -#include <asm/kmap_types.h> +#include <asm/kmap_size.h> #endif /* @@ -48,15 +48,11 @@ enum fixed_addresses { #define FIX_N_COLOURS 8 FIX_CMAP_BEGIN, -#ifdef CONFIG_MIPS_MT_SMTC - FIX_CMAP_END = FIX_CMAP_BEGIN + (FIX_N_COLOURS * NR_CPUS * 2), -#else FIX_CMAP_END = FIX_CMAP_BEGIN + (FIX_N_COLOURS * 2), -#endif #ifdef CONFIG_HIGHMEM /* reserved pte's for temporary kernel mappings */ FIX_KMAP_BEGIN = FIX_CMAP_END + 1, - FIX_KMAP_END = FIX_KMAP_BEGIN+(KM_TYPE_NR*NR_CPUS)-1, + FIX_KMAP_END = FIX_KMAP_BEGIN + (KM_MAX_IDX * NR_CPUS) - 1, #endif __end_of_fixed_addresses }; @@ -71,44 +67,10 @@ enum fixed_addresses { #define FIXADDR_SIZE (__end_of_fixed_addresses << PAGE_SHIFT) #define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE) -#define __fix_to_virt(x) (FIXADDR_TOP - ((x) << PAGE_SHIFT)) -#define __virt_to_fix(x) ((FIXADDR_TOP - ((x)&PAGE_MASK)) >> PAGE_SHIFT) - -extern void __this_fixmap_does_not_exist(void); - -/* - * 'index to address' translation. If anyone tries to use the idx - * directly without tranlation, we catch the bug with a NULL-deference - * kernel oops. Illegal ranges of incoming indices are caught too. - */ -static inline unsigned long fix_to_virt(const unsigned int idx) -{ - /* - * this branch gets completely eliminated after inlining, - * except when someone tries to use fixaddr indices in an - * illegal way. (such as mixing up address types or using - * out-of-range indices). - * - * If it doesn't get removed, the linker will complain - * loudly with a reasonably clear error message.. - */ - if (idx >= __end_of_fixed_addresses) - __this_fixmap_does_not_exist(); - - return __fix_to_virt(idx); -} - -static inline unsigned long virt_to_fix(const unsigned long vaddr) -{ - BUG_ON(vaddr >= FIXADDR_TOP || vaddr < FIXADDR_START); - return __virt_to_fix(vaddr); -} - -#define kmap_get_fixmap_pte(vaddr) \ - pte_offset_kernel(pmd_offset(pud_offset(pgd_offset_k(vaddr), (vaddr)), (vaddr)), (vaddr)) +#include <asm-generic/fixmap.h> /* - * Called from pgtable_init() + * Called from pagetable_init() */ extern void fixrange_init(unsigned long start, unsigned long end, pgd_t *pgd_base); |