table of contents
| 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¶
| June 2024 | Kernel Hackers Manual 3.10 |