The Linux Kernel API
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pci_pool_alloc

Name

pci_pool_alloc -- get a block of consistent memory

Synopsis

void * pci_pool_alloc (struct pci_pool * pool, int mem_flags, dma_addr_t * handle);

Arguments

pool: pci pool that will produce the block
mem_flags: SLAB_KERNEL or SLAB_ATOMIC
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.

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