include/system/dma.h

2  * DMA helper functions
14 #include "system/address-spaces.h"
27  * or less have to treat these as 64-bit always to cover all (or at
49      * This is called before DMA read and write operations  in dma_barrier()
64      * transfer, the DMA context, etc...  in dma_barrier()
69 /* Checks that the given range of addresses is valid for DMA.  This is
111  * dma_memory_rw: Read from or write to an address space from DMA controller.
134  * dma_memory_read: Read from an address space from DMA controller.
155  * dma_memory_write: Write to address space from DMA controller.
176  * dma_memory_set: Fill memory with a constant byte from DMA controller.
197  * Use only for reads OR writes - not for read-modify-write operations.
312  * power of 2 size less or equal than @end - @start + 1, aligned with @start,