1DMA_POOL_ALLOC(9)         Memory Management in Linux         DMA_POOL_ALLOC(9)
2
3
4

NAME

6       dma_pool_alloc - get a block of consistent memory
7

SYNOPSIS

9       void * dma_pool_alloc(struct dma_pool * pool, gfp_t mem_flags,
10                             dma_addr_t * handle);
11

ARGUMENTS

13       pool
14           dma pool that will produce the block
15
16       mem_flags
17           GFP_* bitmask
18
19       handle
20           pointer to dma address of block
21

DESCRIPTION

23       This returns the kernel virtual address of a currently unused block,
24       and reports its dma address through the handle. If such a memory block
25       can't be allocated, NULL is returned.
26

28Kernel Hackers Manual 3.10         June 2019                 DMA_POOL_ALLOC(9)
Impressum