void flush_icache_range()

in mm/cache.c [35:57]

• 20 lines of code
• 2 McCabe index (conditional complexity)

void flush_icache_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); "
			"	icinva(%0);	"
			:
			: "r" (start)
		);
		start += LINESIZE;
	}
	__asm__ __volatile__ (
		"isync"
	);
	local_irq_restore(flags);
}