* vesafb handover
@ 2010-02-15 10:04 Thomas Hellstrom
2010-02-15 11:01 ` Dave Airlie
0 siblings, 1 reply; 3+ messages in thread
From: Thomas Hellstrom @ 2010-02-15 10:04 UTC (permalink / raw)
To: Dave Airlie; +Cc: dri-devel@lists.sourceforge.net
Hi, Dave!
Could you point me to what's needed in drm fb setup to utilize the
vesafb handover mechanism?
Thanks,
Thomas
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: vesafb handover
2010-02-15 10:04 vesafb handover Thomas Hellstrom
@ 2010-02-15 11:01 ` Dave Airlie
2010-02-15 14:52 ` Thomas Hellstrom
0 siblings, 1 reply; 3+ messages in thread
From: Dave Airlie @ 2010-02-15 11:01 UTC (permalink / raw)
To: Thomas Hellstrom; +Cc: Dave Airlie, dri-devel@lists.sourceforge.net
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.
------------------------------------------------------------------------------
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
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: vesafb handover
2010-02-15 11:01 ` Dave Airlie
@ 2010-02-15 14:52 ` Thomas Hellstrom
0 siblings, 0 replies; 3+ messages in thread
From: Thomas Hellstrom @ 2010-02-15 14:52 UTC (permalink / raw)
To: Dave Airlie; +Cc: Dave Airlie, dri-devel@lists.sourceforge.net
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
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2010-02-15 10:04 vesafb handover Thomas Hellstrom
2010-02-15 11:01 ` Dave Airlie
2010-02-15 14:52 ` Thomas Hellstrom
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