RE: a question about dma_set_mask function

done by iommu). dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gfp) Any help will be really appreciated. Thanks! Chan Kim From: c...@etri.re.kr Sent: Thursday, July 22, 2021 4:33 PM To: kernelnewbies@kernelnewbies.org Subject: a question about dma_set_mask

a question about dma_set_mask function

Hello, I have a question about DNA (I was reading DMA-API-HOWTO.txt ). You know regarding DMA, there is cpu virtual address, cpu physical address and bus address for the device. Bus address is converted to cpu physical address