| #ifndef _M68KNOMMU_CACHEFLUSH_H |
| #define _M68KNOMMU_CACHEFLUSH_H |
| |
| /* |
| * (C) Copyright 2000-2004, Greg Ungerer <gerg@snapgear.com> |
| */ |
| #include <linux/mm.h> |
| |
| #define flush_cache_all() __flush_cache_all() |
| #define flush_cache_mm(mm) do { } while (0) |
| #define flush_cache_dup_mm(mm) do { } while (0) |
| #define flush_cache_range(vma, start, end) __flush_cache_all() |
| #define flush_cache_page(vma, vmaddr) do { } while (0) |
| #define flush_dcache_range(start,len) __flush_cache_all() |
| #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0 |
| #define flush_dcache_page(page) do { } while (0) |
| #define flush_dcache_mmap_lock(mapping) do { } while (0) |
| #define flush_dcache_mmap_unlock(mapping) do { } while (0) |
| #define flush_icache_range(start,len) __flush_cache_all() |
| #define flush_icache_page(vma,pg) do { } while (0) |
| #define flush_icache_user_range(vma,pg,adr,len) do { } while (0) |
| #define flush_cache_vmap(start, end) do { } while (0) |
| #define flush_cache_vunmap(start, end) do { } while (0) |
| |
| #define copy_to_user_page(vma, page, vaddr, dst, src, len) \ |
| memcpy(dst, src, len) |
| #define copy_from_user_page(vma, page, vaddr, dst, src, len) \ |
| memcpy(dst, src, len) |
| |
| static inline void __flush_cache_all(void) |
| { |
| #if defined(CONFIG_M5407) || defined(CONFIG_M548x) |
| /* |
| * Use cpushl to push and invalidate all cache lines. |
| * Gas doesn't seem to know how to generate the ColdFire |
| * cpushl instruction... Oh well, bit stuff it for now. |
| */ |
| __asm__ __volatile__ ( |
| "nop\n\t" |
| "clrl %%d0\n\t" |
| "1:\n\t" |
| "movel %%d0,%%a0\n\t" |
| "2:\n\t" |
| ".word 0xf468\n\t" |
| "addl #0x10,%%a0\n\t" |
| "cmpl #0x00000800,%%a0\n\t" |
| "blt 2b\n\t" |
| "addql #1,%%d0\n\t" |
| "cmpil #4,%%d0\n\t" |
| "bne 1b\n\t" |
| "movel #0xb6088500,%%d0\n\t" |
| "movec %%d0,%%CACR\n\t" |
| : : : "d0", "a0" ); |
| #endif /* CONFIG_M5407 */ |
| #if defined(CONFIG_M523x) || defined(CONFIG_M527x) |
| __asm__ __volatile__ ( |
| "movel #0x81400100, %%d0\n\t" |
| "movec %%d0, %%CACR\n\t" |
| "nop\n\t" |
| : : : "d0" ); |
| #endif /* CONFIG_M523x || CONFIG_M527x */ |
| #if defined(CONFIG_M528x) |
| __asm__ __volatile__ ( |
| "movel #0x81000200, %%d0\n\t" |
| "movec %%d0, %%CACR\n\t" |
| "nop\n\t" |
| : : : "d0" ); |
| #endif /* CONFIG_M528x */ |
| #if defined(CONFIG_M5206) || defined(CONFIG_M5206e) || defined(CONFIG_M5272) |
| __asm__ __volatile__ ( |
| "movel #0x81000100, %%d0\n\t" |
| "movec %%d0, %%CACR\n\t" |
| "nop\n\t" |
| : : : "d0" ); |
| #endif /* CONFIG_M5206 || CONFIG_M5206e || CONFIG_M5272 */ |
| #ifdef CONFIG_M5249 |
| __asm__ __volatile__ ( |
| "movel #0xa1000200, %%d0\n\t" |
| "movec %%d0, %%CACR\n\t" |
| "nop\n\t" |
| : : : "d0" ); |
| #endif /* CONFIG_M5249 */ |
| #ifdef CONFIG_M532x |
| __asm__ __volatile__ ( |
| "movel #0x81000200, %%d0\n\t" |
| "movec %%d0, %%CACR\n\t" |
| "nop\n\t" |
| : : : "d0" ); |
| #endif /* CONFIG_M532x */ |
| } |
| |
| #endif /* _M68KNOMMU_CACHEFLUSH_H */ |
