LXR linux/arch/sparc/include/asm/cacheflush

   1#ifndef _SPARC_CACHEFLUSH_H
   2#define _SPARC_CACHEFLUSH_H
   3
   4#include <asm/cachetlb_32.h>
   5
   6#define flush_cache_all() \
   7        sparc32_cachetlb_ops->cache_all()
   8#define flush_cache_mm(mm) \
   9        sparc32_cachetlb_ops->cache_mm(mm)
  10#define flush_cache_dup_mm(mm) \
  11        sparc32_cachetlb_ops->cache_mm(mm)
  12#define flush_cache_range(vma,start,end) \
  13        sparc32_cachetlb_ops->cache_range(vma, start, end)
  14#define flush_cache_page(vma,addr,pfn) \
  15        sparc32_cachetlb_ops->cache_page(vma, addr)
  16#define flush_icache_range(start, end)          do { } while (0)
  17#define flush_icache_page(vma, pg)              do { } while (0)
  18
  19#define flush_icache_user_range(vma,pg,adr,len) do { } while (0)
  20
  21#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
  22        do {                                                    \
  23                flush_cache_page(vma, vaddr, page_to_pfn(page));\
  24                memcpy(dst, src, len);                          \
  25        } while (0)
  26#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
  27        do {                                                    \
  28                flush_cache_page(vma, vaddr, page_to_pfn(page));\
  29                memcpy(dst, src, len);                          \
  30        } while (0)
  31
  32#define __flush_page_to_ram(addr) \
  33        sparc32_cachetlb_ops->page_to_ram(addr)
  34#define flush_sig_insns(mm,insn_addr) \
  35        sparc32_cachetlb_ops->sig_insns(mm, insn_addr)
  36#define flush_page_for_dma(addr) \
  37        sparc32_cachetlb_ops->page_for_dma(addr)
  38
  39extern void sparc_flush_page_to_ram(struct page *page);
  40
  41#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
  42#define flush_dcache_page(page)                 sparc_flush_page_to_ram(page)
  43#define flush_dcache_mmap_lock(mapping)         do { } while (0)
  44#define flush_dcache_mmap_unlock(mapping)       do { } while (0)
  45
  46#define flush_cache_vmap(start, end)            flush_cache_all()
  47#define flush_cache_vunmap(start, end)          flush_cache_all()
  48
  49/* When a context switch happens we must flush all user windows so that
  50 * the windows of the current process are flushed onto its stack. This
  51 * way the windows are all clean for the next process and the stack
  52 * frames are up to date.
  53 */
  54extern void flush_user_windows(void);
  55extern void kill_user_windows(void);
  56extern void flushw_all(void);
  57
  58#endif /* _SPARC_CACHEFLUSH_H */
  59