x1950 only 256mb ram accessible

[Alex Deucher]

On Fri, Dec 18, 2009 at 3:42 AM, Andrew Lyon <andrew.lyon at gmail.com> wrote:
> Hi,
>
> Running X server 1.6.3.901 with Radeon x1950 and xf86-video-ati-6.12.4
> on kernel 2.6.31 the driver is reporting that only 256mb ram is
> accessible because that is the pci bar setting:
>
> (II) RADEON(0): Generation 2 PCI interface, using max accessible memory
> (II) RADEON(0): Detected total video RAM=524288K, accessible=262144K
> (PCI BAR=262144K)
> (--) RADEON(0): Mapped VideoRAM: 262144 kByte (256 bit DDR SDRAM)
>
>
> How can I use all 512mb?

It will eventually be available via the kernel memory manager in the
radeon drm with KMS.

Alex