RE: Address spaces on a i386 - Getting Confused

Stephen C. Tweedie (sct@redhat.com)
Thu, 1 Apr 1999 18:12:44 +0100 (BST)


Hi,

On Thu, 1 Apr 1999 09:11:55 -0500 , Eric Lowe <ELowe@SYSTRAN.com> said:

> How about a dmamalloc() function?

In the kernel, use GFP_DMA for dma-capable, physically contiguous memory
(only for ISA dma right now, as that is limited to 16MB; PCI can always
dma all of physical memory right now, as we don't support more than 4G
physical ram on Intel). In user space, use valloc() to get page-aligned
memory.

--Stephen

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/