From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- include/asm-m68knommu/cacheflush.h | 75 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 75 insertions(+) create mode 100644 include/asm-m68knommu/cacheflush.h (limited to 'include/asm-m68knommu/cacheflush.h') diff --git a/include/asm-m68knommu/cacheflush.h b/include/asm-m68knommu/cacheflush.h new file mode 100644 index 00000000000..aa7a2ffa41a --- /dev/null +++ b/include/asm-m68knommu/cacheflush.h @@ -0,0 +1,75 @@ +#ifndef _M68KNOMMU_CACHEFLUSH_H +#define _M68KNOMMU_CACHEFLUSH_H + +/* + * (C) Copyright 2000-2002, Greg Ungerer + */ +#include + +#define flush_cache_all() __flush_cache_all() +#define flush_cache_mm(mm) do { } while (0) +#define flush_cache_range(vma, start, end) do { } while (0) +#define flush_cache_page(vma, vmaddr, pfn) do { } while (0) +#define flush_dcache_range(start,len) do { } while (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) flush_cache_all() +#define flush_cache_vunmap(start, end) flush_cache_all() + +#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) + +extern 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 */ +#ifdef CONFIG_M5272 + __asm__ __volatile__ ( + "movel #0x01000000, %%d0\n\t" + "movec %%d0, %%CACR\n\t" + "nop\n\t" + "movel #0x80000100, %%d0\n\t" + "movec %%d0, %%CACR\n\t" + "nop\n\t" + : : : "d0" ); +#endif /* CONFIG_M5272 */ +#if 0 /* CONFIG_M5249 */ + __asm__ __volatile__ ( + "movel #0x01000000, %%d0\n\t" + "movec %%d0, %%CACR\n\t" + "nop\n\t" + "movel #0xa0000200, %%d0\n\t" + "movec %%d0, %%CACR\n\t" + "nop\n\t" + : : : "d0" ); +#endif /* CONFIG_M5249 */ +} + +#endif /* _M68KNOMMU_CACHEFLUSH_H */ -- cgit v1.2.3