165 lines
7.6 KiB
C
165 lines
7.6 KiB
C
/* MN10300 Cache flushing
|
|
*
|
|
* Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
|
|
* Written by David Howells (dhowells@redhat.com)
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public Licence
|
|
* as published by the Free Software Foundation; either version
|
|
* 2 of the Licence, or (at your option) any later version.
|
|
*/
|
|
#ifndef _ASM_CACHEFLUSH_H
|
|
#define _ASM_CACHEFLUSH_H
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
/* Keep includes the same across arches. */
|
|
#include <linux/mm.h>
|
|
|
|
/*
|
|
* Primitive routines
|
|
*/
|
|
#ifdef CONFIG_MN10300_CACHE_ENABLED
|
|
extern void mn10300_local_icache_inv(void);
|
|
extern void mn10300_local_icache_inv_page(unsigned long start);
|
|
extern void mn10300_local_icache_inv_range(unsigned long start, unsigned long end);
|
|
extern void mn10300_local_icache_inv_range2(unsigned long start, unsigned long size);
|
|
extern void mn10300_local_dcache_inv(void);
|
|
extern void mn10300_local_dcache_inv_page(unsigned long start);
|
|
extern void mn10300_local_dcache_inv_range(unsigned long start, unsigned long end);
|
|
extern void mn10300_local_dcache_inv_range2(unsigned long start, unsigned long size);
|
|
extern void mn10300_icache_inv(void);
|
|
extern void mn10300_icache_inv_page(unsigned long start);
|
|
extern void mn10300_icache_inv_range(unsigned long start, unsigned long end);
|
|
extern void mn10300_icache_inv_range2(unsigned long start, unsigned long size);
|
|
extern void mn10300_dcache_inv(void);
|
|
extern void mn10300_dcache_inv_page(unsigned long start);
|
|
extern void mn10300_dcache_inv_range(unsigned long start, unsigned long end);
|
|
extern void mn10300_dcache_inv_range2(unsigned long start, unsigned long size);
|
|
#ifdef CONFIG_MN10300_CACHE_WBACK
|
|
extern void mn10300_local_dcache_flush(void);
|
|
extern void mn10300_local_dcache_flush_page(unsigned long start);
|
|
extern void mn10300_local_dcache_flush_range(unsigned long start, unsigned long end);
|
|
extern void mn10300_local_dcache_flush_range2(unsigned long start, unsigned long size);
|
|
extern void mn10300_local_dcache_flush_inv(void);
|
|
extern void mn10300_local_dcache_flush_inv_page(unsigned long start);
|
|
extern void mn10300_local_dcache_flush_inv_range(unsigned long start, unsigned long end);
|
|
extern void mn10300_local_dcache_flush_inv_range2(unsigned long start, unsigned long size);
|
|
extern void mn10300_dcache_flush(void);
|
|
extern void mn10300_dcache_flush_page(unsigned long start);
|
|
extern void mn10300_dcache_flush_range(unsigned long start, unsigned long end);
|
|
extern void mn10300_dcache_flush_range2(unsigned long start, unsigned long size);
|
|
extern void mn10300_dcache_flush_inv(void);
|
|
extern void mn10300_dcache_flush_inv_page(unsigned long start);
|
|
extern void mn10300_dcache_flush_inv_range(unsigned long start, unsigned long end);
|
|
extern void mn10300_dcache_flush_inv_range2(unsigned long start, unsigned long size);
|
|
#else
|
|
#define mn10300_local_dcache_flush() do {} while (0)
|
|
#define mn10300_local_dcache_flush_page(start) do {} while (0)
|
|
#define mn10300_local_dcache_flush_range(start, end) do {} while (0)
|
|
#define mn10300_local_dcache_flush_range2(start, size) do {} while (0)
|
|
#define mn10300_local_dcache_flush_inv() \
|
|
mn10300_local_dcache_inv()
|
|
#define mn10300_local_dcache_flush_inv_page(start) \
|
|
mn10300_local_dcache_inv_page(start)
|
|
#define mn10300_local_dcache_flush_inv_range(start, end) \
|
|
mn10300_local_dcache_inv_range(start, end)
|
|
#define mn10300_local_dcache_flush_inv_range2(start, size) \
|
|
mn10300_local_dcache_inv_range2(start, size)
|
|
#define mn10300_dcache_flush() do {} while (0)
|
|
#define mn10300_dcache_flush_page(start) do {} while (0)
|
|
#define mn10300_dcache_flush_range(start, end) do {} while (0)
|
|
#define mn10300_dcache_flush_range2(start, size) do {} while (0)
|
|
#define mn10300_dcache_flush_inv() mn10300_dcache_inv()
|
|
#define mn10300_dcache_flush_inv_page(start) \
|
|
mn10300_dcache_inv_page((start))
|
|
#define mn10300_dcache_flush_inv_range(start, end) \
|
|
mn10300_dcache_inv_range((start), (end))
|
|
#define mn10300_dcache_flush_inv_range2(start, size) \
|
|
mn10300_dcache_inv_range2((start), (size))
|
|
#endif /* CONFIG_MN10300_CACHE_WBACK */
|
|
#else
|
|
#define mn10300_local_icache_inv() do {} while (0)
|
|
#define mn10300_local_icache_inv_page(start) do {} while (0)
|
|
#define mn10300_local_icache_inv_range(start, end) do {} while (0)
|
|
#define mn10300_local_icache_inv_range2(start, size) do {} while (0)
|
|
#define mn10300_local_dcache_inv() do {} while (0)
|
|
#define mn10300_local_dcache_inv_page(start) do {} while (0)
|
|
#define mn10300_local_dcache_inv_range(start, end) do {} while (0)
|
|
#define mn10300_local_dcache_inv_range2(start, size) do {} while (0)
|
|
#define mn10300_local_dcache_flush() do {} while (0)
|
|
#define mn10300_local_dcache_flush_inv_page(start) do {} while (0)
|
|
#define mn10300_local_dcache_flush_inv() do {} while (0)
|
|
#define mn10300_local_dcache_flush_inv_range(start, end)do {} while (0)
|
|
#define mn10300_local_dcache_flush_inv_range2(start, size) do {} while (0)
|
|
#define mn10300_local_dcache_flush_page(start) do {} while (0)
|
|
#define mn10300_local_dcache_flush_range(start, end) do {} while (0)
|
|
#define mn10300_local_dcache_flush_range2(start, size) do {} while (0)
|
|
#define mn10300_icache_inv() do {} while (0)
|
|
#define mn10300_icache_inv_page(start) do {} while (0)
|
|
#define mn10300_icache_inv_range(start, end) do {} while (0)
|
|
#define mn10300_icache_inv_range2(start, size) do {} while (0)
|
|
#define mn10300_dcache_inv() do {} while (0)
|
|
#define mn10300_dcache_inv_page(start) do {} while (0)
|
|
#define mn10300_dcache_inv_range(start, end) do {} while (0)
|
|
#define mn10300_dcache_inv_range2(start, size) do {} while (0)
|
|
#define mn10300_dcache_flush() do {} while (0)
|
|
#define mn10300_dcache_flush_inv_page(start) do {} while (0)
|
|
#define mn10300_dcache_flush_inv() do {} while (0)
|
|
#define mn10300_dcache_flush_inv_range(start, end) do {} while (0)
|
|
#define mn10300_dcache_flush_inv_range2(start, size) do {} while (0)
|
|
#define mn10300_dcache_flush_page(start) do {} while (0)
|
|
#define mn10300_dcache_flush_range(start, end) do {} while (0)
|
|
#define mn10300_dcache_flush_range2(start, size) do {} while (0)
|
|
#endif /* CONFIG_MN10300_CACHE_ENABLED */
|
|
|
|
/*
|
|
* Virtually-indexed cache management (our cache is physically indexed)
|
|
*/
|
|
#define flush_cache_all() do {} while (0)
|
|
#define flush_cache_mm(mm) do {} while (0)
|
|
#define flush_cache_dup_mm(mm) do {} while (0)
|
|
#define flush_cache_range(mm, start, end) do {} while (0)
|
|
#define flush_cache_page(vma, vmaddr, pfn) do {} while (0)
|
|
#define flush_cache_vmap(start, end) do {} while (0)
|
|
#define flush_cache_vunmap(start, end) do {} while (0)
|
|
#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)
|
|
|
|
/*
|
|
* Physically-indexed cache management
|
|
*/
|
|
#if defined(CONFIG_MN10300_CACHE_FLUSH_ICACHE)
|
|
extern void flush_icache_page(struct vm_area_struct *vma, struct page *page);
|
|
extern void flush_icache_range(unsigned long start, unsigned long end);
|
|
#elif defined(CONFIG_MN10300_CACHE_INV_ICACHE)
|
|
static inline void flush_icache_page(struct vm_area_struct *vma,
|
|
struct page *page)
|
|
{
|
|
mn10300_icache_inv_page(page_to_phys(page));
|
|
}
|
|
extern void flush_icache_range(unsigned long start, unsigned long end);
|
|
#else
|
|
#define flush_icache_range(start, end) do {} while (0)
|
|
#define flush_icache_page(vma, pg) do {} while (0)
|
|
#endif
|
|
|
|
|
|
#define flush_icache_user_range(vma, pg, adr, len) \
|
|
flush_icache_range(adr, adr + len)
|
|
|
|
#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
|
|
do { \
|
|
memcpy(dst, src, len); \
|
|
flush_icache_page(vma, page); \
|
|
} while (0)
|
|
|
|
#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
|
|
memcpy(dst, src, len)
|
|
|
|
#endif /* __ASSEMBLY__ */
|
|
|
|
#endif /* _ASM_CACHEFLUSH_H */
|