Provided by: manpages-dev_3.35-0.1ubuntu1_all
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.
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