LXR linux/include/asm-sparc/cacheflush.h

   1#ifndef _SPARC_CACHEFLUSH_H
   2#define _SPARC_CACHEFLUSH_H
   3
   4#include <linux/mm.h>           /* Common for other includes */
   5// #include <linux/kernel.h> from pgalloc.h
   6// #include <linux/sched.h>  from pgalloc.h
   7
   8// #include <asm/page.h>
   9#include <asm/btfixup.h>
  10
  11/*
  12 * Fine grained cache flushing.
  13 */
  14#ifdef CONFIG_SMP
  15
  16BTFIXUPDEF_CALL(void, local_flush_cache_all, void)
  17BTFIXUPDEF_CALL(void, local_flush_cache_mm, struct mm_struct *)
  18BTFIXUPDEF_CALL(void, local_flush_cache_range, struct vm_area_struct *, unsigned long, unsigned long)
  19BTFIXUPDEF_CALL(void, local_flush_cache_page, struct vm_area_struct *, unsigned long)
  20
  21#define local_flush_cache_all() BTFIXUP_CALL(local_flush_cache_all)()
  22#define local_flush_cache_mm(mm) BTFIXUP_CALL(local_flush_cache_mm)(mm)
  23#define local_flush_cache_range(vma,start,end) BTFIXUP_CALL(local_flush_cache_range)(vma,start,end)
  24#define local_flush_cache_page(vma,addr) BTFIXUP_CALL(local_flush_cache_page)(vma,addr)
  25
  26BTFIXUPDEF_CALL(void, local_flush_page_to_ram, unsigned long)
  27BTFIXUPDEF_CALL(void, local_flush_sig_insns, struct mm_struct *, unsigned long)
  28
  29#define local_flush_page_to_ram(addr) BTFIXUP_CALL(local_flush_page_to_ram)(addr)
  30#define local_flush_sig_insns(mm,insn_addr) BTFIXUP_CALL(local_flush_sig_insns)(mm,insn_addr)
  31
  32extern void smp_flush_cache_all(void);
  33extern void smp_flush_cache_mm(struct mm_struct *mm);
  34extern void smp_flush_cache_range(struct vm_area_struct *vma,
  35                                  unsigned long start,
  36                                  unsigned long end);
  37extern void smp_flush_cache_page(struct vm_area_struct *vma, unsigned long page);
  38
  39extern void smp_flush_page_to_ram(unsigned long page);
  40extern void smp_flush_sig_insns(struct mm_struct *mm, unsigned long insn_addr);
  41
  42#endif /* CONFIG_SMP */
  43
  44BTFIXUPDEF_CALL(void, flush_cache_all, void)
  45BTFIXUPDEF_CALL(void, flush_cache_mm, struct mm_struct *)
  46BTFIXUPDEF_CALL(void, flush_cache_range, struct vm_area_struct *, unsigned long, unsigned long)
  47BTFIXUPDEF_CALL(void, flush_cache_page, struct vm_area_struct *, unsigned long)
  48
  49#define flush_cache_all() BTFIXUP_CALL(flush_cache_all)()
  50#define flush_cache_mm(mm) BTFIXUP_CALL(flush_cache_mm)(mm)
  51#define flush_cache_dup_mm(mm) BTFIXUP_CALL(flush_cache_mm)(mm)
  52#define flush_cache_range(vma,start,end) BTFIXUP_CALL(flush_cache_range)(vma,start,end)
  53#define flush_cache_page(vma,addr,pfn) BTFIXUP_CALL(flush_cache_page)(vma,addr)
  54#define flush_icache_range(start, end)          do { } while (0)
  55#define flush_icache_page(vma, pg)              do { } while (0)
  56
  57#define flush_icache_user_range(vma,pg,adr,len) do { } while (0)
  58
  59#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
  60        do {                                                    \
  61                flush_cache_page(vma, vaddr, page_to_pfn(page));\
  62                memcpy(dst, src, len);                          \
  63        } while (0)
  64#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
  65        do {                                                    \
  66                flush_cache_page(vma, vaddr, page_to_pfn(page));\
  67                memcpy(dst, src, len);                          \
  68        } while (0)
  69
  70BTFIXUPDEF_CALL(void, __flush_page_to_ram, unsigned long)
  71BTFIXUPDEF_CALL(void, flush_sig_insns, struct mm_struct *, unsigned long)
  72
  73#define __flush_page_to_ram(addr) BTFIXUP_CALL(__flush_page_to_ram)(addr)
  74#define flush_sig_insns(mm,insn_addr) BTFIXUP_CALL(flush_sig_insns)(mm,insn_addr)
  75
  76extern void sparc_flush_page_to_ram(struct page *page);
  77
  78#define flush_dcache_page(page)                 sparc_flush_page_to_ram(page)
  79#define flush_dcache_mmap_lock(mapping)         do { } while (0)
  80#define flush_dcache_mmap_unlock(mapping)       do { } while (0)
  81
  82#define flush_cache_vmap(start, end)            flush_cache_all()
  83#define flush_cache_vunmap(start, end)          flush_cache_all()
  84
  85#endif /* _SPARC_CACHEFLUSH_H */
  86