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 /* When a context switch happens we must flush all user windows so that 87 * the windows of the current process are flushed onto its stack. This 88 * way the windows are all clean for the next process and the stack 89 * frames are up to date. 90 */ 91 extern void flush_user_windows(void); 92 extern void kill_user_windows(void); 93 extern void flushw_all(void); 94 95 #endif /* _SPARC_CACHEFLUSH_H */ 96