root/arch/sparc/include/asm/cacheflush_32.h

INCLUDED FROM

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _SPARC_CACHEFLUSH_H
   3 #define _SPARC_CACHEFLUSH_H
   4 
   5 #include <asm/cachetlb_32.h>
   6 
   7 #define flush_cache_all() \
   8         sparc32_cachetlb_ops->cache_all()
   9 #define flush_cache_mm(mm) \
  10         sparc32_cachetlb_ops->cache_mm(mm)
  11 #define flush_cache_dup_mm(mm) \
  12         sparc32_cachetlb_ops->cache_mm(mm)
  13 #define flush_cache_range(vma,start,end) \
  14         sparc32_cachetlb_ops->cache_range(vma, start, end)
  15 #define flush_cache_page(vma,addr,pfn) \
  16         sparc32_cachetlb_ops->cache_page(vma, addr)
  17 #define flush_icache_range(start, end)          do { } while (0)
  18 #define flush_icache_page(vma, pg)              do { } while (0)
  19 
  20 #define flush_icache_user_range(vma,pg,adr,len) do { } while (0)
  21 
  22 #define copy_to_user_page(vma, page, vaddr, dst, src, len) \
  23         do {                                                    \
  24                 flush_cache_page(vma, vaddr, page_to_pfn(page));\
  25                 memcpy(dst, src, len);                          \
  26         } while (0)
  27 #define copy_from_user_page(vma, page, vaddr, dst, src, len) \
  28         do {                                                    \
  29                 flush_cache_page(vma, vaddr, page_to_pfn(page));\
  30                 memcpy(dst, src, len);                          \
  31         } while (0)
  32 
  33 #define __flush_page_to_ram(addr) \
  34         sparc32_cachetlb_ops->page_to_ram(addr)
  35 #define flush_sig_insns(mm,insn_addr) \
  36         sparc32_cachetlb_ops->sig_insns(mm, insn_addr)
  37 #define flush_page_for_dma(addr) \
  38         sparc32_cachetlb_ops->page_for_dma(addr)
  39 
  40 void sparc_flush_page_to_ram(struct page *page);
  41 
  42 #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
  43 #define flush_dcache_page(page)                 sparc_flush_page_to_ram(page)
  44 #define flush_dcache_mmap_lock(mapping)         do { } while (0)
  45 #define flush_dcache_mmap_unlock(mapping)       do { } while (0)
  46 
  47 #define flush_cache_vmap(start, end)            flush_cache_all()
  48 #define flush_cache_vunmap(start, end)          flush_cache_all()
  49 
  50 /* When a context switch happens we must flush all user windows so that
  51  * the windows of the current process are flushed onto its stack. This
  52  * way the windows are all clean for the next process and the stack
  53  * frames are up to date.
  54  */
  55 void flush_user_windows(void);
  56 void kill_user_windows(void);
  57 void flushw_all(void);
  58 
  59 #endif /* _SPARC_CACHEFLUSH_H */