page_32.h 924 B

123456789101112131415161718192021222324252627282930313233343536
  1. #ifndef _ASM_POWERPC_PAGE_32_H
  2. #define _ASM_POWERPC_PAGE_32_H
  3. #ifdef __KERNEL__
  4. #define VM_DATA_DEFAULT_FLAGS VM_DATA_DEFAULT_FLAGS32
  5. #define PPC_MEMSTART 0
  6. #ifdef CONFIG_NOT_COHERENT_CACHE
  7. #define ARCH_KMALLOC_MINALIGN L1_CACHE_BYTES
  8. #endif
  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. #else
  18. typedef unsigned long pte_basic_t;
  19. #define PTE_SHIFT (PAGE_SHIFT - 2) /* 1024 ptes per page */
  20. #endif
  21. struct page;
  22. extern void clear_pages(void *page, int order);
  23. static inline void clear_page(void *page) { clear_pages(page, 0); }
  24. extern void copy_page(void *to, void *from);
  25. #include <asm-generic/page.h>
  26. #endif /* __ASSEMBLY__ */
  27. #endif /* __KERNEL__ */
  28. #endif /* _ASM_POWERPC_PAGE_32_H */