cacheflush - flush contents of instruction and/or data cache
int cacheflush(char *addr, int nbytes, int cache);
cacheflush() flushes the contents of the indicated cache(s) for the
user addresses in the range addr to (addr+nbytes-1). cache may be one
ICACHE Flush the instruction cache.
DCACHE Write back to memory and invalidate the affected valid cache
BCACHE Same as (ICACHE|DCACHE).
cacheflush() returns 0 on success or -1 on error. If errors are
detected, errno will indicate the error.
EFAULT Some or all of the address range addr to (addr+nbytes-1) is not
EINVAL cache is not one of ICACHE, DCACHE, or BCACHE.
This Linux-specific system call is only available on MIPS based
systems. It should not be used in programs intended to be portable.
The current implementation ignores the addr and nbytes arguments.
Therefore, the whole cache is always flushed.
This page is part of release 3.24 of the Linux man-pages project. A
description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.