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cacheflush_32.h
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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 
39 extern 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  */
54 extern void flush_user_windows(void);
55 extern void kill_user_windows(void);
56 extern void flushw_all(void);
57 
58 #endif /* _SPARC_CACHEFLUSH_H */