block: add helpers to run flush_dcache_page() against a bio and a request's pages
[linux-2.6.git] / arch / sparc / include / asm / cacheflush_32.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
16 BTFIXUPDEF_CALL(void, local_flush_cache_all, void)
17 BTFIXUPDEF_CALL(void, local_flush_cache_mm, struct mm_struct *)
18 BTFIXUPDEF_CALL(void, local_flush_cache_range, struct vm_area_struct *, unsigned long, unsigned long)
19 BTFIXUPDEF_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
26 BTFIXUPDEF_CALL(void, local_flush_page_to_ram, unsigned long)
27 BTFIXUPDEF_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
32 extern void smp_flush_cache_all(void);
33 extern void smp_flush_cache_mm(struct mm_struct *mm);
34 extern void smp_flush_cache_range(struct vm_area_struct *vma,
35                                   unsigned long start,
36                                   unsigned long end);
37 extern void smp_flush_cache_page(struct vm_area_struct *vma, unsigned long page);
38
39 extern void smp_flush_page_to_ram(unsigned long page);
40 extern void smp_flush_sig_insns(struct mm_struct *mm, unsigned long insn_addr);
41
42 #endif /* CONFIG_SMP */
43
44 BTFIXUPDEF_CALL(void, flush_cache_all, void)
45 BTFIXUPDEF_CALL(void, flush_cache_mm, struct mm_struct *)
46 BTFIXUPDEF_CALL(void, flush_cache_range, struct vm_area_struct *, unsigned long, unsigned long)
47 BTFIXUPDEF_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
70 BTFIXUPDEF_CALL(void, __flush_page_to_ram, unsigned long)
71 BTFIXUPDEF_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
76 extern void sparc_flush_page_to_ram(struct page *page);
77
78 #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
79 #define flush_dcache_page(page)                 sparc_flush_page_to_ram(page)
80 #define flush_dcache_mmap_lock(mapping)         do { } while (0)
81 #define flush_dcache_mmap_unlock(mapping)       do { } while (0)
82
83 #define flush_cache_vmap(start, end)            flush_cache_all()
84 #define flush_cache_vunmap(start, end)          flush_cache_all()
85
86 #endif /* _SPARC_CACHEFLUSH_H */