diff options
Diffstat (limited to 'arch/m68k/include/asm/cacheflush_no.h')
| -rw-r--r-- | arch/m68k/include/asm/cacheflush_no.h | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/arch/m68k/include/asm/cacheflush_no.h b/arch/m68k/include/asm/cacheflush_no.h new file mode 100644 index 000000000000..87e5dc0413b4 --- /dev/null +++ b/arch/m68k/include/asm/cacheflush_no.h | |||
| @@ -0,0 +1,84 @@ | |||
| 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_M527x) || defined(CONFIG_M528x) | ||
| 55 | __asm__ __volatile__ ( | ||
| 56 | "movel #0x81000200, %%d0\n\t" | ||
| 57 | "movec %%d0, %%CACR\n\t" | ||
| 58 | "nop\n\t" | ||
| 59 | : : : "d0" ); | ||
| 60 | #endif /* CONFIG_M527x || CONFIG_M528x */ | ||
| 61 | #if defined(CONFIG_M5206) || defined(CONFIG_M5206e) || defined(CONFIG_M5272) | ||
| 62 | __asm__ __volatile__ ( | ||
| 63 | "movel #0x81000100, %%d0\n\t" | ||
| 64 | "movec %%d0, %%CACR\n\t" | ||
| 65 | "nop\n\t" | ||
| 66 | : : : "d0" ); | ||
| 67 | #endif /* CONFIG_M5206 || CONFIG_M5206e || CONFIG_M5272 */ | ||
| 68 | #ifdef CONFIG_M5249 | ||
| 69 | __asm__ __volatile__ ( | ||
| 70 | "movel #0xa1000200, %%d0\n\t" | ||
| 71 | "movec %%d0, %%CACR\n\t" | ||
| 72 | "nop\n\t" | ||
| 73 | : : : "d0" ); | ||
| 74 | #endif /* CONFIG_M5249 */ | ||
| 75 | #ifdef CONFIG_M532x | ||
| 76 | __asm__ __volatile__ ( | ||
| 77 | "movel #0x81000200, %%d0\n\t" | ||
| 78 | "movec %%d0, %%CACR\n\t" | ||
| 79 | "nop\n\t" | ||
| 80 | : : : "d0" ); | ||
| 81 | #endif /* CONFIG_M532x */ | ||
| 82 | } | ||
| 83 | |||
| 84 | #endif /* _M68KNOMMU_CACHEFLUSH_H */ | ||