1 #ifndef _M68KNOMMU_CACHEFLUSH_H 2 #define _M68KNOMMU_CACHEFLUSH_H 3 4 /* 5 * (C) Copyright 2000-2004, Greg Ungerer <gerg@snapgear.com> 6 */ 7 #include <linux/mm.h> 8 9 #define flush_cache_all() __flush_cache_all() 10 #define flush_cache_mm(mm) do { } while (0) 11 #define flush_cache_dup_mm(mm) do { } while (0) 12 #define flush_cache_range(vma, start, end) __flush_cache_all() 13 #define flush_cache_page(vma, vmaddr) do { } while (0) 14 #define flush_dcache_range(start,len) __flush_cache_all() 15 #define flush_dcache_page(page) do { } while (0) 16 #define flush_dcache_mmap_lock(mapping) do { } while (0) 17 #define flush_dcache_mmap_unlock(mapping) do { } while (0) 18 #define flush_icache_range(start,len) __flush_cache_all() 19 #define flush_icache_page(vma,pg) do { } while (0) 20 #define flush_icache_user_range(vma,pg,adr,len) do { } while (0) 21 #define flush_cache_vmap(start, end) do { } while (0) 22 #define flush_cache_vunmap(start, end) do { } while (0) 23 24 #define copy_to_user_page(vma, page, vaddr, dst, src, len) \ 25 memcpy(dst, src, len) 26 #define copy_from_user_page(vma, page, vaddr, dst, src, len) \ 27 memcpy(dst, src, len) 28 29 static inline void __flush_cache_all(void) 30 { 31 #ifdef CONFIG_M5407 32 /* 33 * Use cpushl to push and invalidate all cache lines. 34 * Gas doesn't seem to know how to generate the ColdFire 35 * cpushl instruction... Oh well, bit stuff it for now. 36 */ 37 __asm__ __volatile__ ( 38 "nop\n\t" 39 "clrl %%d0\n\t" 40 "1:\n\t" 41 "movel %%d0,%%a0\n\t" 42 "2:\n\t" 43 ".word 0xf468\n\t" 44 "addl #0x10,%%a0\n\t" 45 "cmpl #0x00000800,%%a0\n\t" 46 "blt 2b\n\t" 47 "addql #1,%%d0\n\t" 48 "cmpil #4,%%d0\n\t" 49 "bne 1b\n\t" 50 "movel #0xb6088500,%%d0\n\t" 51 "movec %%d0,%%CACR\n\t" 52 : : : "d0", "a0" ); 53 #endif /* CONFIG_M5407 */ 54 #if defined(CONFIG_M523x) || defined(CONFIG_M527x) 55 __asm__ __volatile__ ( 56 "movel #0x81400100, %%d0\n\t" 57 "movec %%d0, %%CACR\n\t" 58 "nop\n\t" 59 : : : "d0" ); 60 #endif /* CONFIG_M523x || CONFIG_M527x */ 61 #if defined(CONFIG_M528x) 62 __asm__ __volatile__ ( 63 "movel #0x81000200, %%d0\n\t" 64 "movec %%d0, %%CACR\n\t" 65 "nop\n\t" 66 : : : "d0" ); 67 #endif /* CONFIG_M528x */ 68 #if defined(CONFIG_M5206) || defined(CONFIG_M5206e) || defined(CONFIG_M5272) 69 __asm__ __volatile__ ( 70 "movel #0x81000100, %%d0\n\t" 71 "movec %%d0, %%CACR\n\t" 72 "nop\n\t" 73 : : : "d0" ); 74 #endif /* CONFIG_M5206 || CONFIG_M5206e || CONFIG_M5272 */ 75 #ifdef CONFIG_M5249 76 __asm__ __volatile__ ( 77 "movel #0xa1000200, %%d0\n\t" 78 "movec %%d0, %%CACR\n\t" 79 "nop\n\t" 80 : : : "d0" ); 81 #endif /* CONFIG_M5249 */ 82 #ifdef CONFIG_M532x 83 __asm__ __volatile__ ( 84 "movel #0x81000200, %%d0\n\t" 85 "movec %%d0, %%CACR\n\t" 86 "nop\n\t" 87 : : : "d0" ); 88 #endif /* CONFIG_M532x */ 89 } 90 91 #endif /* _M68KNOMMU_CACHEFLUSH_H */ 92