Re: vesafb handover

[Thomas Hellstrom <thomas@shipmail.org>]

Dave Airlie wrote:
> On Mon, Feb 15, 2010 at 8:04 PM, Thomas Hellstrom <thomas@shipmail.org> wrote:
>   
>> Hi, Dave!
>>
>> Could you point me to what's needed in drm fb setup to utilize the
>> vesafb handover mechanism?
>>     
>
> In intel_fb.c
>
>        /* setup aperture base/size for vesafb takeover */
>         info->aperture_base = dev->mode_config.fb_base;
>         if (IS_I9XX(dev))
>                 info->aperture_size = pci_resource_len(dev->pdev, 2);
>         else
>                 info->aperture_size = pci_resource_len(dev->pdev, 0);
>
>
> The fb code then compare the aperture base/size against where
> vesafb has setup its linear frame buffer and removes it on conflict.
>
> Dave.
>   
OK, thanks.
I've posted a patch for the vmwgfx driver that removes stealth operation 
in favor of that mechanism.

/Thomas


------------------------------------------------------------------------------
SOLARIS 10 is the OS for Data Centers - provides features such as DTrace,
Predictive Self Healing and Award Winning ZFS. Get Solaris 10 NOW
http://p.sf.net/sfu/solaris-dev2dev
--