Provided by: manpages-dev_2.17-1_all
cacheflush - flush contents of instruction and/or data cache
int cacheflush(char *addr, int nbytes, int cache);
cacheflush() flushes contents of indicated cache(s) for user addresses
in the range addr to (addr+nbytes-1). Cache may be one of:
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 parameter is not one of ICACHE, DCACHE, or BCACHE.
The current implementation ignores the addr and nbytes parameters.
Therefore always the whole cache is flushed.
This system call is only available on MIPS based systems. It should
not be used in programs intended to be portable.