cacheflush.h 1.5 KB

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  1. #ifndef __ASM_CPU_SH2A_CACHEFLUSH_H
  2. #define __ASM_CPU_SH2A_CACHEFLUSH_H
  3. /*
  4. * Cache flushing:
  5. *
  6. * - flush_cache_all() flushes entire cache
  7. * - flush_cache_mm(mm) flushes the specified mm context's cache lines
  8. * - flush_cache_dup mm(mm) handles cache flushing when forking
  9. * - flush_cache_page(mm, vmaddr, pfn) flushes a single page
  10. * - flush_cache_range(vma, start, end) flushes a range of pages
  11. *
  12. * - flush_dcache_page(pg) flushes(wback&invalidates) a page for dcache
  13. * - flush_icache_range(start, end) flushes(invalidates) a range for icache
  14. * - flush_icache_page(vma, pg) flushes(invalidates) a page for icache
  15. *
  16. * Caches are indexed (effectively) by physical address on SH-2, so
  17. * we don't need them.
  18. */
  19. #define flush_cache_all() do { } while (0)
  20. #define flush_cache_mm(mm) do { } while (0)
  21. #define flush_cache_dup_mm(mm) do { } while (0)
  22. #define flush_cache_range(vma, start, end) do { } while (0)
  23. #define flush_cache_page(vma, vmaddr, pfn) do { } while (0)
  24. #define flush_dcache_page(page) do { } while (0)
  25. #define flush_dcache_mmap_lock(mapping) do { } while (0)
  26. #define flush_dcache_mmap_unlock(mapping) do { } while (0)
  27. void flush_icache_range(unsigned long start, unsigned long end);
  28. #define flush_icache_page(vma,pg) do { } while (0)
  29. #define flush_icache_user_range(vma,pg,adr,len) do { } while (0)
  30. #define flush_cache_sigtramp(vaddr) do { } while (0)
  31. #define p3_cache_init() do { } while (0)
  32. #endif /* __ASM_CPU_SH2A_CACHEFLUSH_H */