Release 4.14 arch/ia64/include/asm/cacheflush.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_IA64_CACHEFLUSH_H

#define _ASM_IA64_CACHEFLUSH_H

/*
 * Copyright (C) 2002 Hewlett-Packard Co
 *      David Mosberger-Tang <davidm@hpl.hp.com>
 */

#include <linux/page-flags.h>
#include <linux/bitops.h>

#include <asm/page.h>

/*
 * Cache flushing routines.  This is the kind of stuff that can be very expensive, so try
 * to avoid them whenever possible.
 */


#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(vma, start, end)	do { } while (0)

#define flush_cache_page(vma, vmaddr, 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)


#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1

#define flush_dcache_page(page)			\
do {                                            \
        clear_bit(PG_arch_1, &(page)->flags);   \
} while (0)


#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 start, unsigned long end);
extern void clflush_cache_range(void *addr, int size);



#define flush_icache_user_range(vma, page, user_addr, len)					\
do {                                                                                            \
        unsigned long _addr = (unsigned long) page_address(page) + ((user_addr) & ~PAGE_MASK);  \
        flush_icache_range(_addr, _addr + (len));                                               \
} while (0)


#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)

#endif /* _ASM_IA64_CACHEFLUSH_H */
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
David Mosberger-Tang
95
50.00%
3
27.27%
Andrew Morton
68
35.79%
2
18.18%
Fenghua Yu
12
6.32%
1
9.09%
Ralf Bächle
7
3.68%
1
9.09%
Ilya Loginov
4
2.11%
1
9.09%
David S. Miller
2
1.05%
1
9.09%
Greg Kroah-Hartman
1
0.53%
1
9.09%
Jiri Slaby
1
0.53%
1
9.09%
Total
190
100.00%
11
100.00%
Directory: arch/ia64/include/asm

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