Re: discontig physical memory

David S. Miller
2001-10-08T23:06:08Z

From: Petko Manolov <pmanolov@Lnxw.COM>
Date: Mon, 08 Oct 2001 15:54:30 -0700

Any ideas how to make lowest 4MB allocatable throu
kmalloc(size, GFP_DMA) without breaking the kernel?

Setup ZONE_DMA correctly at boot time.

See the code around the free_area_init() call in
arch/i386/mm/init.c for an example of how to do this.
Intel does it for the low 16MB, you would just do it
for the low 4MB.

Franks a lot,
David S. Miller
davem@redhat.com