#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_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 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) { #ifdef CONFIG_M5407 /* * 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_M527x) || defined(CONFIG_M528x) __asm__ __volatile__ ( "movel #0x81400100, %%d0\n\t" "movec %%d0, %%CACR\n\t" "nop\n\t" : : : "d0" ); #endif /* CONFIG_M527x || 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 */