in mm/cache.c [60:78]
void hexagon_clean_dcache_range(unsigned long start, unsigned long end)
{
unsigned long lines = spanlines(start, end-1);
unsigned long i, flags;
start &= ~(LINESIZE - 1);
local_irq_save(flags);
for (i = 0; i < lines; i++) {
__asm__ __volatile__ (
" dccleana(%0); "
:
: "r" (start)
);
start += LINESIZE;
}
local_irq_restore(flags);
}