Linux 4.4 PCIe DMA進入用戶空間頁面不起作用 - highmem不能用於DMA? [英]Linux 4.4 PCIe DMA into userspace pages not working - highmem not usable for DMA?
Linux:如何確定與ioremap返回的內容相對應的DMA地址 [英]Linux: how to determine the DMA address corresponding to what's returned from ioremap
如何在Linux內核模塊中分配由1GB HugePages支持的DMA緩沖區? [英]How do I allocate a DMA buffer backed by 1GB HugePages in a linux kernel module?