diff options
Diffstat (limited to 'arch/powerpc/include/asm/page_32.h')
| -rw-r--r-- | arch/powerpc/include/asm/page_32.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/page_32.h b/arch/powerpc/include/asm/page_32.h new file mode 100644 index 00000000000..d77072a32cc --- /dev/null +++ b/arch/powerpc/include/asm/page_32.h @@ -0,0 +1,44 @@ +#ifndef _ASM_POWERPC_PAGE_32_H +#define _ASM_POWERPC_PAGE_32_H + +#if defined(CONFIG_PHYSICAL_ALIGN) && (CONFIG_PHYSICAL_START != 0) +#if (CONFIG_PHYSICAL_START % CONFIG_PHYSICAL_ALIGN) != 0 +#error "CONFIG_PHYSICAL_START must be a multiple of CONFIG_PHYSICAL_ALIGN" +#endif +#endif + +#define VM_DATA_DEFAULT_FLAGS VM_DATA_DEFAULT_FLAGS32 + +#ifdef CONFIG_NOT_COHERENT_CACHE +#define ARCH_KMALLOC_MINALIGN L1_CACHE_BYTES +#endif + +#ifdef CONFIG_PTE_64BIT +#define PTE_FLAGS_OFFSET 4 /* offset of PTE flags, in bytes */ +#else +#define PTE_FLAGS_OFFSET 0 +#endif + +#ifndef __ASSEMBLY__ +/* + * The basic type of a PTE - 64 bits for those CPUs with > 32 bit + * physical addressing. + */ +#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; +extern void clear_pages(void *page, int order); +static inline void clear_page(void *page) { clear_pages(page, 0); } +extern void copy_page(void *to, void *from); + +#include <asm-generic/page.h> + +#endif /* __ASSEMBLY__ */ + +#endif /* _ASM_POWERPC_PAGE_32_H */ |