Avivo crash in xf86MapPciMem (X1950Pro 512M) and CRT blanking

Daniel Stone daniel at fooishbar.org
Sun Jul 29 14:34:19 PDT 2007


On Sun, Jul 29, 2007 at 10:45:41AM -0400, Alex Deucher wrote:
> On 7/28/07, Robert Tate <wrtate at users.sourceforge.net> wrote:
> > The gzipped radeondumps are attached.  Also with respect to the crashing problem, I forgot to mention that the line "avivo->fb_size = INREG(RADEON_CONFIG_MEMSIZE);" set fb_size to 536870912 (512M), but fglrx only reports 256M.
> 
> I think the max pci BAR size is 256 MB, so you'd need to clip the
> videoram to 256 MB.  the additional vram is GPU only.  Try adding a
> check to the driver to clip vram to 256 MB.

Well, it should really be keying off the size of the BAR, not off
RADEON_CONFIG_MEMSIZE.  Sorry.

Cheers,
Daniel
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