Re: reg memory allocated by kmalloc

From: Alan Cox (alan@lxorguk.ukuu.org.uk)
Date: Mon Dec 18 2000 - 07:09:09 EST


> I would like to know.. is memory allocated by kmalloc always double word
> aligned????.. and is this suitable for dma only if i use GFP_DMA priority...
> i mean dma for a pci device... or can i just specify GFP_KERNEL and use
> it.... is it safe to proceed in this way???

The alignment should be fine yes. GFP_DMA is for ISA bus 24bit DMA,
GFP_KERNEL is 32bit so if your PCI card has true 32bit DMA it will do. 2.4
has the pci_alloc_* interface

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