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include/asm-sparc/cacheflush.h 3.46 KB
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1da177e4c   Linus Torvalds   Linux-2.6.12-rc2 
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  #ifndef _SPARC_CACHEFLUSH_H
  #define _SPARC_CACHEFLUSH_H
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2 
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  #include <linux/mm.h>		/* Common for other includes */
  // #include <linux/kernel.h> from pgalloc.h
  // #include <linux/sched.h>  from pgalloc.h
  
  // #include <asm/page.h>
  #include <asm/btfixup.h>
  
  /*
   * Fine grained cache flushing.
   */
  #ifdef CONFIG_SMP
  
  BTFIXUPDEF_CALL(void, local_flush_cache_all, void)
  BTFIXUPDEF_CALL(void, local_flush_cache_mm, struct mm_struct *)
  BTFIXUPDEF_CALL(void, local_flush_cache_range, struct vm_area_struct *, unsigned long, unsigned long)
  BTFIXUPDEF_CALL(void, local_flush_cache_page, struct vm_area_struct *, unsigned long)
  
  #define local_flush_cache_all() BTFIXUP_CALL(local_flush_cache_all)()
  #define local_flush_cache_mm(mm) BTFIXUP_CALL(local_flush_cache_mm)(mm)
  #define local_flush_cache_range(vma,start,end) BTFIXUP_CALL(local_flush_cache_range)(vma,start,end)
  #define local_flush_cache_page(vma,addr) BTFIXUP_CALL(local_flush_cache_page)(vma,addr)
  
  BTFIXUPDEF_CALL(void, local_flush_page_to_ram, unsigned long)
  BTFIXUPDEF_CALL(void, local_flush_sig_insns, struct mm_struct *, unsigned long)
  
  #define local_flush_page_to_ram(addr) BTFIXUP_CALL(local_flush_page_to_ram)(addr)
  #define local_flush_sig_insns(mm,insn_addr) BTFIXUP_CALL(local_flush_sig_insns)(mm,insn_addr)
  
  extern void smp_flush_cache_all(void);
  extern void smp_flush_cache_mm(struct mm_struct *mm);
  extern void smp_flush_cache_range(struct vm_area_struct *vma,
  				  unsigned long start,
  				  unsigned long end);
  extern void smp_flush_cache_page(struct vm_area_struct *vma, unsigned long page);
  
  extern void smp_flush_page_to_ram(unsigned long page);
  extern void smp_flush_sig_insns(struct mm_struct *mm, unsigned long insn_addr);
  
  #endif /* CONFIG_SMP */
  
  BTFIXUPDEF_CALL(void, flush_cache_all, void)
  BTFIXUPDEF_CALL(void, flush_cache_mm, struct mm_struct *)
  BTFIXUPDEF_CALL(void, flush_cache_range, struct vm_area_struct *, unsigned long, unsigned long)
  BTFIXUPDEF_CALL(void, flush_cache_page, struct vm_area_struct *, unsigned long)
  
  #define flush_cache_all() BTFIXUP_CALL(flush_cache_all)()
  #define flush_cache_mm(mm) BTFIXUP_CALL(flush_cache_mm)(mm)
ec8c0446b   Ralf Baechle   [PATCH] Optimize ... 
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  #define flush_cache_dup_mm(mm) BTFIXUP_CALL(flush_cache_mm)(mm)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2 
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  #define flush_cache_range(vma,start,end) BTFIXUP_CALL(flush_cache_range)(vma,start,end)
  #define flush_cache_page(vma,addr,pfn) BTFIXUP_CALL(flush_cache_page)(vma,addr)
  #define flush_icache_range(start, end)		do { } while (0)
  #define flush_icache_page(vma, pg)		do { } while (0)
  
  #define flush_icache_user_range(vma,pg,adr,len)	do { } while (0)
  
  #define copy_to_user_page(vma, page, vaddr, dst, src, len) \
  	do {							\
  		flush_cache_page(vma, vaddr, page_to_pfn(page));\
  		memcpy(dst, src, len);				\
  	} while (0)
  #define copy_from_user_page(vma, page, vaddr, dst, src, len) \
  	do {							\
  		flush_cache_page(vma, vaddr, page_to_pfn(page));\
  		memcpy(dst, src, len);				\
  	} while (0)
  
  BTFIXUPDEF_CALL(void, __flush_page_to_ram, unsigned long)
  BTFIXUPDEF_CALL(void, flush_sig_insns, struct mm_struct *, unsigned long)
  
  #define __flush_page_to_ram(addr) BTFIXUP_CALL(__flush_page_to_ram)(addr)
  #define flush_sig_insns(mm,insn_addr) BTFIXUP_CALL(flush_sig_insns)(mm,insn_addr)
  
  extern void sparc_flush_page_to_ram(struct page *page);
  
  #define flush_dcache_page(page)			sparc_flush_page_to_ram(page)
  #define flush_dcache_mmap_lock(mapping)		do { } while (0)
  #define flush_dcache_mmap_unlock(mapping)	do { } while (0)
  
  #define flush_cache_vmap(start, end)		flush_cache_all()
  #define flush_cache_vunmap(start, end)		flush_cache_all()
  
  #endif /* _SPARC_CACHEFLUSH_H */