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/*
* include/asm-ppc/cacheflush.h
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#ifdef __KERNEL__
#ifndef _PPC_CACHEFLUSH_H
#define _PPC_CACHEFLUSH_H
#include <linux/mm.h>
/*
* No cache flushing is required when address mappings are
* changed, because the caches on PowerPCs are physically
* addressed. -- paulus
* Also, when SMP we use the coherency (M) bit of the
* BATs and PTEs. -- Cort
*/
#define flush_cache_all() do { } while (0)
#define flush_cache_mm(mm) do { } while (0)
#define flush_cache_range(vma, a, b) do { } while (0)
#define flush_cache_page(vma, p, pfn) do { } while (0)
#define flush_icache_page(vma, page) do { } while (0)
#define flush_cache_vmap(start, end) do { } while (0)
#define flush_cache_vunmap(start, end) do { } while (0)
extern void flush_dcache_page(struct page *page);
#define flush_dcache_mmap_lock(mapping) do { } while (0)
#define flush_dcache_mmap_unlock(mapping) do { } while (0)
extern void flush_icache_range(unsigned long, unsigned long);
extern void flush_icache_user_range(struct vm_area_struct *vma,
struct page *page, unsigned long addr, int len);
#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
do { memcpy(dst, src, len); \
flush_icache_user_range(vma, page, vaddr, len); \
} while (0)
#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
memcpy(dst, src, len)
extern void __flush_dcache_icache(void *page_va);
extern void __flush_dcache_icache_phys(unsigned long physaddr);
extern void flush_dcache_icache_page(struct page *page);
#endif /* _PPC_CACHEFLUSH_H */
#endif /* __KERNEL__ */
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