page_32.h 1.1 KB

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  1. #ifndef _ASM_POWERPC_PAGE_32_H
  2. #define _ASM_POWERPC_PAGE_32_H
  3. #if defined(CONFIG_PHYSICAL_ALIGN) && (CONFIG_PHYSICAL_START != 0)
  4. #if (CONFIG_PHYSICAL_START % CONFIG_PHYSICAL_ALIGN) != 0
  5. #error "CONFIG_PHYSICAL_START must be a multiple of CONFIG_PHYSICAL_ALIGN"
  6. #endif
  7. #endif
  8. #define VM_DATA_DEFAULT_FLAGS VM_DATA_DEFAULT_FLAGS32
  9. #ifdef CONFIG_NOT_COHERENT_CACHE
  10. #define ARCH_KMALLOC_MINALIGN L1_CACHE_BYTES
  11. #endif
  12. #ifdef CONFIG_PTE_64BIT
  13. #define PTE_FLAGS_OFFSET 4 /* offset of PTE flags, in bytes */
  14. #else
  15. #define PTE_FLAGS_OFFSET 0
  16. #endif
  17. #ifndef __ASSEMBLY__
  18. /*
  19. * The basic type of a PTE - 64 bits for those CPUs with > 32 bit
  20. * physical addressing.
  21. */
  22. #ifdef CONFIG_PTE_64BIT
  23. typedef unsigned long long pte_basic_t;
  24. #define PTE_SHIFT (PAGE_SHIFT - 3) /* 512 ptes per page */
  25. #else
  26. typedef unsigned long pte_basic_t;
  27. #define PTE_SHIFT (PAGE_SHIFT - 2) /* 1024 ptes per page */
  28. #endif
  29. struct page;
  30. extern void clear_pages(void *page, int order);
  31. static inline void clear_page(void *page) { clear_pages(page, 0); }
  32. extern void copy_page(void *to, void *from);
  33. #include <asm-generic/page.h>
  34. #endif /* __ASSEMBLY__ */
  35. #endif /* _ASM_POWERPC_PAGE_32_H */