DMA_POOL_ALLOC(9)                   Memory Management in Linux                  DMA_POOL_ALLOC(9)



NAME
       dma_pool_alloc - get a block of consistent memory

SYNOPSIS
       void * dma_pool_alloc(struct dma_pool * pool, gfp_t mem_flags, dma_addr_t * handle);

ARGUMENTS
       pool
           dma pool that will produce the block

       mem_flags
           GFP_* bitmask

       handle
           pointer to dma address of block

DESCRIPTION
       This returns the kernel virtual address of a currently unused block, and reports its dma
       address through the handle. If such a memory block can't be allocated, NULL is returned.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                         DMA_POOL_ALLOC(9)