cacheflush.h 1.6 KB

123456789101112131415161718192021222324252627282930313233343536373839404142
  1. /*
  2. * include/asm-sh/cpu-sh2/cacheflush.h
  3. *
  4. * Copyright (C) 2003 Paul Mundt
  5. *
  6. * This file is subject to the terms and conditions of the GNU General Public
  7. * License. See the file "COPYING" in the main directory of this archive
  8. * for more details.
  9. */
  10. #ifndef __ASM_CPU_SH2_CACHEFLUSH_H
  11. #define __ASM_CPU_SH2_CACHEFLUSH_H
  12. /*
  13. * Cache flushing:
  14. *
  15. * - flush_cache_all() flushes entire cache
  16. * - flush_cache_mm(mm) flushes the specified mm context's cache lines
  17. * - flush_cache_page(mm, vmaddr, pfn) flushes a single page
  18. * - flush_cache_range(vma, start, end) flushes a range of pages
  19. *
  20. * - flush_dcache_page(pg) flushes(wback&invalidates) a page for dcache
  21. * - flush_icache_range(start, end) flushes(invalidates) a range for icache
  22. * - flush_icache_page(vma, pg) flushes(invalidates) a page for icache
  23. *
  24. * Caches are indexed (effectively) by physical address on SH-2, so
  25. * we don't need them.
  26. */
  27. #define flush_cache_all() do { } while (0)
  28. #define flush_cache_mm(mm) do { } while (0)
  29. #define flush_cache_range(vma, start, end) do { } while (0)
  30. #define flush_cache_page(vma, vmaddr, pfn) do { } while (0)
  31. #define flush_dcache_page(page) do { } while (0)
  32. #define flush_dcache_mmap_lock(mapping) do { } while (0)
  33. #define flush_dcache_mmap_unlock(mapping) do { } while (0)
  34. #define flush_icache_range(start, end) do { } while (0)
  35. #define flush_icache_page(vma,pg) do { } while (0)
  36. #define flush_icache_user_range(vma,pg,adr,len) do { } while (0)
  37. #define flush_cache_sigtramp(vaddr) do { } while (0)
  38. #define p3_cache_init() do { } while (0)
  39. #endif /* __ASM_CPU_SH2_CACHEFLUSH_H */