diff options
Diffstat (limited to 'include/asm-mips/page.h')
| -rw-r--r-- | include/asm-mips/page.h | 31 |
1 files changed, 14 insertions, 17 deletions
diff --git a/include/asm-mips/page.h b/include/asm-mips/page.h index 6b97744f00cd..85b258ee7090 100644 --- a/include/asm-mips/page.h +++ b/include/asm-mips/page.h @@ -14,8 +14,6 @@ #include <spaces.h> -#endif - /* * PAGE_SHIFT determines the page size */ @@ -34,10 +32,10 @@ #define PAGE_SIZE (1UL << PAGE_SHIFT) #define PAGE_MASK (~((1 << PAGE_SHIFT) - 1)) - -#ifdef __KERNEL__ #ifndef __ASSEMBLY__ +#include <asm/cpu-features.h> + extern void clear_page(void * page); extern void copy_page(void * to, void * from); @@ -57,7 +55,7 @@ static inline void clear_user_page(void *addr, unsigned long vaddr, extern void (*flush_data_cache_page)(unsigned long addr); clear_page(addr); - if (pages_do_alias((unsigned long) addr, vaddr)) + if (pages_do_alias((unsigned long) addr, vaddr & PAGE_MASK)) flush_data_cache_page((unsigned long)addr); } @@ -67,7 +65,8 @@ static inline void copy_user_page(void *vto, void *vfrom, unsigned long vaddr, extern void (*flush_data_cache_page)(unsigned long addr); copy_page(vto, vfrom); - if (pages_do_alias((unsigned long)vto, vaddr)) + if (!cpu_has_ic_fills_f_dc || + pages_do_alias((unsigned long)vto, vaddr & PAGE_MASK)) flush_data_cache_page((unsigned long)vto); } @@ -78,15 +77,17 @@ static inline void copy_user_page(void *vto, void *vfrom, unsigned long vaddr, #ifdef CONFIG_CPU_MIPS32 typedef struct { unsigned long pte_low, pte_high; } pte_t; #define pte_val(x) ((x).pte_low | ((unsigned long long)(x).pte_high << 32)) + #define __pte(x) ({ pte_t __pte = {(x), ((unsigned long long)(x)) >> 32}; __pte; }) #else typedef struct { unsigned long long pte; } pte_t; #define pte_val(x) ((x).pte) + #define __pte(x) ((pte_t) { (x) } ) #endif #else typedef struct { unsigned long pte; } pte_t; #define pte_val(x) ((x).pte) -#endif #define __pte(x) ((pte_t) { (x) } ) +#endif /* * For 3-level pagetables we defines these ourselves, for 2-level the @@ -138,16 +139,14 @@ typedef struct { unsigned long pgprot; } pgprot_t; #define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT) -#ifndef CONFIG_SPARSEMEM -#ifndef CONFIG_NEED_MULTIPLE_NODES -#define pfn_valid(pfn) ((pfn) < max_mapnr) -#endif -#endif - #ifdef CONFIG_FLATMEM #define pfn_valid(pfn) ((pfn) < max_mapnr) +#elif defined(CONFIG_SPARSEMEM) + +/* pfn_valid is defined in linux/mmzone.h */ + #elif defined(CONFIG_NEED_MULTIPLE_NODES) #define pfn_valid(pfn) \ @@ -159,8 +158,6 @@ typedef struct { unsigned long pgprot; } pgprot_t; : 0); \ }) -#else -#error Provide a definition of pfn_valid #endif #define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT) @@ -172,8 +169,6 @@ typedef struct { unsigned long pgprot; } pgprot_t; #define UNCAC_ADDR(addr) ((addr) - PAGE_OFFSET + UNCAC_BASE) #define CAC_ADDR(addr) ((addr) - UNCAC_BASE + PAGE_OFFSET) -#endif /* defined (__KERNEL__) */ - #ifdef CONFIG_LIMITED_DMA #define WANT_PAGE_VIRTUAL #endif @@ -181,4 +176,6 @@ typedef struct { unsigned long pgprot; } pgprot_t; #include <asm-generic/memory_model.h> #include <asm-generic/page.h> +#endif /* defined (__KERNEL__) */ + #endif /* _ASM_PAGE_H */ |