Subject: Re: physically contiguous memory
To: Emmanuel Dreyfus <email@example.com>
From: Jason R Thorpe <firstname.lastname@example.org>
Date: 03/26/2001 13:23:18
On Mon, Mar 26, 2001 at 11:19:27PM +0200, Emmanuel Dreyfus wrote:
> > Note that with bus_dmamem_alloc() you don't have to have the memory
> > mapped in the kernel which saves you kernel page table descriptors.
> So it could work by asking the kernel to leave untouched some part of
> the memory? (it's the way it's done on Linux)
> How do you tell the kernel to not use some part of the memory?
Uh, by allocating it.
-- Jason R. Thorpe <email@example.com>