1 .\" Written by Ralf Baechle (ralf@waldorf-gmbh.de),
2 .\" Copyright (c) 1994, 1995 Waldorf GMBH
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25 .TH CACHEFLUSH 2 2007-05-26 "Linux" "Linux Programmer's Manual"
27 cacheflush \- flush contents of instruction and/or data cache
30 .B #include <asm/cachectl.h>
32 .BI "int cacheflush(char *" addr ", int "nbytes ", int "cache );
36 flushes the contents of the indicated cache(s) for the
37 user addresses in the range
45 Flush the instruction cache.
48 Write back to memory and invalidate the affected valid cache lines.
55 returns 0 on success or \-1 on error.
56 If errors are detected,
58 will indicate the error.
62 Some or all of the address range
76 This Linux-specific system call is available only on MIPS-based systems.
77 .\" FIXME This system call was only on MIPS back in 1.2 days, but
78 .\" by now it is on a number of other architectures (but not i386).
79 .\" Investigate the details and update this page.
80 It should not be used in programs intended to be portable.
81 .\" Irix 6.5 appears to have a cacheflush() syscall -- mtk
83 The current implementation ignores the
88 Therefore, the whole cache is always flushed.
90 This page is part of release 3.68 of the Linux
93 A description of the project,
94 information about reporting bugs,
95 and the latest version of this page,
97 \%http://www.kernel.org/doc/man\-pages/.