diff options
Diffstat (limited to 'arch/m68k')
| -rw-r--r-- | arch/m68k/include/asm/pgtable_mm.h | 30 |
1 files changed, 24 insertions, 6 deletions
diff --git a/arch/m68k/include/asm/pgtable_mm.h b/arch/m68k/include/asm/pgtable_mm.h index 87174c904d2b..dc35e0e106e4 100644 --- a/arch/m68k/include/asm/pgtable_mm.h +++ b/arch/m68k/include/asm/pgtable_mm.h @@ -40,6 +40,8 @@ /* PGDIR_SHIFT determines what a third-level page table entry can map */ #ifdef CONFIG_SUN3 #define PGDIR_SHIFT 17 +#elif defined(CONFIG_COLDFIRE) +#define PGDIR_SHIFT 22 #else #define PGDIR_SHIFT 25 #endif @@ -54,6 +56,10 @@ #define PTRS_PER_PTE 16 #define PTRS_PER_PMD 1 #define PTRS_PER_PGD 2048 +#elif defined(CONFIG_COLDFIRE) +#define PTRS_PER_PTE 512 +#define PTRS_PER_PMD 1 +#define PTRS_PER_PGD 1024 #else #define PTRS_PER_PTE 1024 #define PTRS_PER_PMD 8 @@ -66,12 +72,22 @@ #ifdef CONFIG_SUN3 #define KMAP_START 0x0DC00000 #define KMAP_END 0x0E000000 +#elif defined(CONFIG_COLDFIRE) +#define KMAP_START 0xe0000000 +#define KMAP_END 0xf0000000 #else #define KMAP_START 0xd0000000 #define KMAP_END 0xf0000000 #endif -#ifndef CONFIG_SUN3 +#ifdef CONFIG_SUN3 +extern unsigned long m68k_vmalloc_end; +#define VMALLOC_START 0x0f800000 +#define VMALLOC_END m68k_vmalloc_end +#elif defined(CONFIG_COLDFIRE) +#define VMALLOC_START 0xd0000000 +#define VMALLOC_END 0xe0000000 +#else /* Just any arbitrary offset to the start of the vmalloc VM area: the * current 8MB value just means that there will be a 8MB "hole" after the * physical memory until the kernel virtual memory starts. That means that @@ -82,11 +98,7 @@ #define VMALLOC_OFFSET (8*1024*1024) #define VMALLOC_START (((unsigned long) high_memory + VMALLOC_OFFSET) & ~(VMALLOC_OFFSET-1)) #define VMALLOC_END KMAP_START -#else -extern unsigned long m68k_vmalloc_end; -#define VMALLOC_START 0x0f800000 -#define VMALLOC_END m68k_vmalloc_end -#endif /* CONFIG_SUN3 */ +#endif /* zero page used for uninitialized stuff */ extern void *empty_zero_page; @@ -130,6 +142,8 @@ static inline void update_mmu_cache(struct vm_area_struct *vma, #ifdef CONFIG_SUN3 #include <asm/sun3_pgtable.h> +#elif defined(CONFIG_COLDFIRE) +#include <asm/mcf_pgtable.h> #else #include <asm/motorola_pgtable.h> #endif @@ -138,6 +152,9 @@ static inline void update_mmu_cache(struct vm_area_struct *vma, /* * Macro to mark a page protection value as "uncacheable". */ +#ifdef CONFIG_COLDFIRE +# define pgprot_noncached(prot) (__pgprot(pgprot_val(prot) | CF_PAGE_NOCACHE)) +#else #ifdef SUN3_PAGE_NOCACHE # define __SUN3_PAGE_NOCACHE SUN3_PAGE_NOCACHE #else @@ -152,6 +169,7 @@ static inline void update_mmu_cache(struct vm_area_struct *vma, ? (__pgprot((pgprot_val(prot) & _CACHEMASK040) | _PAGE_NOCACHE_S)) \ : (prot))) +#endif /* CONFIG_COLDFIRE */ #include <asm-generic/pgtable.h> #endif /* !__ASSEMBLY__ */ |