93 lines
2.7 KiB
C
93 lines
2.7 KiB
C
#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 */
|