[deliverable/linux.git] / include / asm-m68knommu / cacheflush.h

#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 */
Commit	Line	Data
1da177e4 LT	1	#ifndef _M68KNOMMU_CACHEFLUSH_H
	2	#define _M68KNOMMU_CACHEFLUSH_H
	3
	4	/*
962d69ed	5	* (C) Copyright 2000-2004, Greg Ungerer <gerg@snapgear.com>
1da177e4 LT	6	*/
	7	#include <linux/mm.h>
	8
	9	#define flush_cache_all() __flush_cache_all()
	10	#define flush_cache_mm(mm) do { } while (0)
962d69ed GU	11	#define flush_cache_range(vma, start, end) __flush_cache_all()
	12	#define flush_cache_page(vma, vmaddr) do { } while (0)
	13	#define flush_dcache_range(start,len) __flush_cache_all()
1da177e4 LT	14	#define flush_dcache_page(page) do { } while (0)
	15	#define flush_dcache_mmap_lock(mapping) do { } while (0)
	16	#define flush_dcache_mmap_unlock(mapping) do { } while (0)
	17	#define flush_icache_range(start,len) __flush_cache_all()
	18	#define flush_icache_page(vma,pg) do { } while (0)
	19	#define flush_icache_user_range(vma,pg,adr,len) do { } while (0)
962d69ed GU	20	#define flush_cache_vmap(start, end) do { } while (0)
962d69ed GU	21	#define flush_cache_vunmap(start, end) do { } while (0)
1da177e4 LT	22
	23	#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
	24	memcpy(dst, src, len)
	25	#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
	26	memcpy(dst, src, len)
	27
3dead1a3	28	static inline void __flush_cache_all(void)
1da177e4 LT	29	{
	30	#ifdef CONFIG_M5407
	31	/*
	32	* Use cpushl to push and invalidate all cache lines.
	33	* Gas doesn't seem to know how to generate the ColdFire
	34	* cpushl instruction... Oh well, bit stuff it for now.
	35	*/
	36	__asm__ __volatile__ (
	37	"nop\n\t"
	38	"clrl %%d0\n\t"
	39	"1:\n\t"
	40	"movel %%d0,%%a0\n\t"
	41	"2:\n\t"
	42	".word 0xf468\n\t"
	43	"addl #0x10,%%a0\n\t"
	44	"cmpl #0x00000800,%%a0\n\t"
	45	"blt 2b\n\t"
	46	"addql #1,%%d0\n\t"
	47	"cmpil #4,%%d0\n\t"
	48	"bne 1b\n\t"
	49	"movel #0xb6088500,%%d0\n\t"
	50	"movec %%d0,%%CACR\n\t"
	51	: : : "d0", "a0" );
	52	#endif /* CONFIG_M5407 */
962d69ed	53	#if defined(CONFIG_M527x) \|\| defined(CONFIG_M528x)
1da177e4	54	__asm__ __volatile__ (
962d69ed	55	"movel #0x81400100, %%d0\n\t"
1da177e4 LT	56	"movec %%d0, %%CACR\n\t"
	57	"nop\n\t"
	58	: : : "d0" );
962d69ed	59	#endif /* CONFIG_M527x \|\| CONFIG_M528x */
1b1a9bd2	60	#if defined(CONFIG_M5206) \|\| defined(CONFIG_M5206e) \|\| defined(CONFIG_M5272)
1da177e4	61	__asm__ __volatile__ (
1b1a9bd2	62	"movel #0x81000100, %%d0\n\t"
1da177e4 LT	63	"movec %%d0, %%CACR\n\t"
1da177e4 LT	64	"nop\n\t"
962d69ed	65	: : : "d0" );
1b1a9bd2	66	#endif /* CONFIG_M5206 \|\| CONFIG_M5206e \|\| CONFIG_M5272 */
3dead1a3	67	#ifdef CONFIG_M5249
962d69ed GU	68	__asm__ __volatile__ (
962d69ed GU	69	"movel #0xa1000200, %%d0\n\t"
1da177e4 LT	70	"movec %%d0, %%CACR\n\t"
	71	"nop\n\t"
	72	: : : "d0" );
	73	#endif /* CONFIG_M5249 */
1b1a9bd2 GU	74	#ifdef CONFIG_M532x
	75	__asm__ __volatile__ (
	76	"movel #0x81000200, %%d0\n\t"
	77	"movec %%d0, %%CACR\n\t"
	78	"nop\n\t"
	79	: : : "d0" );
	80	#endif /* CONFIG_M532x */
1da177e4 LT	81	}
	82
	83	#endif /* _M68KNOMMU_CACHEFLUSH_H */