projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | #ifndef _M68KNOMMU_CACHEFLUSH_H |
| 2 | #define _M68KNOMMU_CACHEFLUSH_H | |
| 3 | ||
| 4 | /* | |
| 5 | * (C) Copyright 2000-2002, 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_range(vma, start, end) do { } while (0) | |
| 12 | #define flush_cache_page(vma, vmaddr, pfn) do { } while (0) | |
| 13 | #define flush_dcache_range(start,len) do { } while (0) | |
| 14 | #define flush_dcache_page(page) do { } while (0) | |
| 15 | #define flush_dcache_mmap_lock(mapping) do { } while (0) | |
| 16 | #define flush_dcache_mmap_unlock(mapping) do { } while (0) | |
| 17 | #define flush_icache_range(start,len) __flush_cache_all() | |
| 18 | #define flush_icache_page(vma,pg) do { } while (0) | |
| 19 | #define flush_icache_user_range(vma,pg,adr,len) do { } while (0) | |
| 20 | #define flush_cache_vmap(start, end) flush_cache_all() | |
| 21 | #define flush_cache_vunmap(start, end) flush_cache_all() | |
| 22 | ||
| 23 | #define copy_to_user_page(vma, page, vaddr, dst, src, len) \ | |
| 24 | memcpy(dst, src, len) | |
| 25 | #define copy_from_user_page(vma, page, vaddr, dst, src, len) \ | |
| 26 | memcpy(dst, src, len) | |
| 27 | ||
| 28 | extern inline void __flush_cache_all(void) | |
| 29 | { | |
| 30 | #ifdef CONFIG_M5407 | |
| 31 | /* | |
| 32 | * Use cpushl to push and invalidate all cache lines. | |
| 33 | * Gas doesn't seem to know how to generate the ColdFire | |
| 34 | * cpushl instruction... Oh well, bit stuff it for now. | |
| 35 | */ | |
| 36 | __asm__ __volatile__ ( | |
| 37 | "nop\n\t" | |
| 38 | "clrl %%d0\n\t" | |
| 39 | "1:\n\t" | |
| 40 | "movel %%d0,%%a0\n\t" | |
| 41 | "2:\n\t" | |
| 42 | ".word 0xf468\n\t" | |
| 43 | "addl #0x10,%%a0\n\t" | |
| 44 | "cmpl #0x00000800,%%a0\n\t" | |
| 45 | "blt 2b\n\t" | |
| 46 | "addql #1,%%d0\n\t" | |
| 47 | "cmpil #4,%%d0\n\t" | |
| 48 | "bne 1b\n\t" | |
| 49 | "movel #0xb6088500,%%d0\n\t" | |
| 50 | "movec %%d0,%%CACR\n\t" | |
| 51 | : : : "d0", "a0" ); | |
| 52 | #endif /* CONFIG_M5407 */ | |
| 53 | #ifdef CONFIG_M5272 | |
| 54 | __asm__ __volatile__ ( | |
| 55 | "movel #0x01000000, %%d0\n\t" | |
| 56 | "movec %%d0, %%CACR\n\t" | |
| 57 | "nop\n\t" | |
| 58 | "movel #0x80000100, %%d0\n\t" | |
| 59 | "movec %%d0, %%CACR\n\t" | |
| 60 | "nop\n\t" | |
| 61 | : : : "d0" ); | |
| 62 | #endif /* CONFIG_M5272 */ | |
| 63 | #if 0 /* CONFIG_M5249 */ | |
| 64 | __asm__ __volatile__ ( | |
| 65 | "movel #0x01000000, %%d0\n\t" | |
| 66 | "movec %%d0, %%CACR\n\t" | |
| 67 | "nop\n\t" | |
| 68 | "movel #0xa0000200, %%d0\n\t" | |
| 69 | "movec %%d0, %%CACR\n\t" | |
| 70 | "nop\n\t" | |
| 71 | : : : "d0" ); | |
| 72 | #endif /* CONFIG_M5249 */ | |
| 73 | } | |
| 74 | ||
| 75 | #endif /* _M68KNOMMU_CACHEFLUSH_H */ |