diff options
Diffstat (limited to 'arch/powerpc/include/asm/page_32.h')
| -rw-r--r-- | arch/powerpc/include/asm/page_32.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/powerpc/include/asm/page_32.h b/arch/powerpc/include/asm/page_32.h index d77072a32cc..1458d950038 100644 --- a/arch/powerpc/include/asm/page_32.h +++ b/arch/powerpc/include/asm/page_32.h @@ -19,6 +19,8 @@ #define PTE_FLAGS_OFFSET 0 #endif +#define PTE_SHIFT (PAGE_SHIFT - PTE_T_LOG2) /* full page */ + #ifndef __ASSEMBLY__ /* * The basic type of a PTE - 64 bits for those CPUs with > 32 bit @@ -26,10 +28,8 @@ */ #ifdef CONFIG_PTE_64BIT typedef unsigned long long pte_basic_t; -#define PTE_SHIFT (PAGE_SHIFT - 3) /* 512 ptes per page */ #else typedef unsigned long pte_basic_t; -#define PTE_SHIFT (PAGE_SHIFT - 2) /* 1024 ptes per page */ #endif struct page; @@ -39,6 +39,9 @@ extern void copy_page(void *to, void *from); #include <asm-generic/page.h> +#define PGD_T_LOG2 (__builtin_ffs(sizeof(pgd_t)) - 1) +#define PTE_T_LOG2 (__builtin_ffs(sizeof(pte_t)) - 1) + #endif /* __ASSEMBLY__ */ #endif /* _ASM_POWERPC_PAGE_32_H */ |