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 <thorpej@zembu.com>