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| author | Ingo Molnar <mingo@elte.hu> | 2009-02-04 14:54:56 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-02-04 14:54:56 +0100 |
| commit | bb960a1e42042e82447a5bc0941b3ab6d614bac3 (patch) | |
| tree | d2295a923fabb1b01b25bb015c4c2e42ee9df5ca /arch/m68k/include/asm/cacheflush_no.h | |
| parent | 858770619debfb9269add63e4ba8b7c6b5538dd1 (diff) | |
| parent | 06fc732c33a7ff5e4c91bcf4a6ca86b5e335ad9a (diff) | |
Merge branch 'core/xen' into x86/urgent
Diffstat (limited to 'arch/m68k/include/asm/cacheflush_no.h')
| -rw-r--r-- | arch/m68k/include/asm/cacheflush_no.h | 91 |
1 files changed, 91 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..c65f00a94553 --- /dev/null +++ b/arch/m68k/include/asm/cacheflush_no.h @@ -0,0 +1,91 @@ +#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 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_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 */ |