void arch_sync_dma_for_device()

in kernel/dma.c [12:33]

• 21 lines of code
• 4 McCabe index (conditional complexity)

void arch_sync_dma_for_device(phys_addr_t paddr, size_t size,
		enum dma_data_direction dir)
{
	void *addr = phys_to_virt(paddr);

	switch (dir) {
	case DMA_TO_DEVICE:
		hexagon_clean_dcache_range((unsigned long) addr,
		(unsigned long) addr + size);
		break;
	case DMA_FROM_DEVICE:
		hexagon_inv_dcache_range((unsigned long) addr,
		(unsigned long) addr + size);
		break;
	case DMA_BIDIRECTIONAL:
		flush_dcache_range((unsigned long) addr,
		(unsigned long) addr + size);
		break;
	default:
		BUG();
	}
}