projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 5cd16ee9 ME |
1 | #ifndef _ASM_POWERPC_PAGE_32_H |
| 2 | #define _ASM_POWERPC_PAGE_32_H | |
| 88ced031 | 3 | #ifdef __KERNEL__ |
| 5cd16ee9 ME |
4 | |
| 5 | #define VM_DATA_DEFAULT_FLAGS VM_DATA_DEFAULT_FLAGS32 | |
| 6 | ||
| 493f25ef PM |
7 | #define PPC_MEMSTART 0 |
| 8 | ||
| 5cd16ee9 ME |
9 | #ifndef __ASSEMBLY__ |
| 10 | /* | |
| 11 | * The basic type of a PTE - 64 bits for those CPUs with > 32 bit | |
| 12 | * physical addressing. For now this just the IBM PPC440. | |
| 13 | */ | |
| 14 | #ifdef CONFIG_PTE_64BIT | |
| 15 | typedef unsigned long long pte_basic_t; | |
| 16 | #define PTE_SHIFT (PAGE_SHIFT - 3) /* 512 ptes per page */ | |
| 17 | #define PTE_FMT "%16Lx" | |
| 18 | #else | |
| 19 | typedef unsigned long pte_basic_t; | |
| 20 | #define PTE_SHIFT (PAGE_SHIFT - 2) /* 1024 ptes per page */ | |
| 21 | #define PTE_FMT "%.8lx" | |
| 22 | #endif | |
| 23 | ||
| 24 | struct page; | |
| 25 | extern void clear_pages(void *page, int order); | |
| 26 | static inline void clear_page(void *page) { clear_pages(page, 0); } | |
| 27 | extern void copy_page(void *to, void *from); | |
| 28 | ||
| 29 | /* Pure 2^n version of get_order */ | |
| 30 | extern __inline__ int get_order(unsigned long size) | |
| 31 | { | |
| 32 | int lz; | |
| 33 | ||
| 34 | size = (size-1) >> PAGE_SHIFT; | |
| 35 | asm ("cntlzw %0,%1" : "=r" (lz) : "r" (size)); | |
| 36 | return 32 - lz; | |
| 37 | } | |
| 38 | ||
| 39 | #endif /* __ASSEMBLY__ */ | |
| 40 | ||
| 88ced031 | 41 | #endif /* __KERNEL__ */ |
| 5cd16ee9 | 42 | #endif /* _ASM_POWERPC_PAGE_32_H */ |