From: Matthew Garrett <mjg59@srcf.ucam.org>
To: Olivier Galibert <galibert@pobox.com>
Cc: Indan Zupancic <indan@nul.nu>, Dave Airlie <airlied@linux.ie>,
intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org,
dri-devel@lists.freedesktop.org, Len Brown <lenb@kernel.org>,
Alan Cox <alan@linux.intel.com>
Subject: Re: [Intel-gfx] [PATCH] ACPI/Intel: Rework Opregion support
Date: Tue, 15 Mar 2011 13:32:40 +0000 [thread overview]
Message-ID: <20110315133240.GA5471@srcf.ucam.org> (raw)
In-Reply-To: <20110315133055.GA33193@dspnet.fr>
On Tue, Mar 15, 2011 at 02:30:55PM +0100, Olivier Galibert wrote:
> On Tue, Mar 15, 2011 at 01:52:26AM +0000, Matthew Garrett wrote:
> > Now that we've got multiple consumers it's probably not helpful to move
> > the (potentially chip-specific) VBT handling to general code. We've got
> > zero documentation on how GMA500 handles VBT, and not a great deal more
> > for i915.
>
> I'm not sure what you mean by "handles". If you mean find it, the
> gma500 driver code reads a 32-bit pointer to the opregion at offset
> 0xfc in the pci configuration space. If you mean parse it, I haven't
> seen anything that looked different to what the current kernel code
> parses.
Opregion is one mechanism to provide VBT - it doesn't define it.
--
Matthew Garrett | mjg59@srcf.ucam.org
next prev parent reply other threads:[~2011-03-15 13:32 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-22 20:03 [PATCH 1/2] ACPI/Intel: Rework Opregion support Matthew Garrett
2011-02-22 20:03 ` [PATCH 2/2] staging: Use generic IGD opregion code for gma500 Matthew Garrett
2011-02-22 21:15 ` Alan Cox
2011-03-03 2:14 ` Len Brown
2011-03-03 2:16 ` Len Brown
2011-03-03 11:43 ` Alan Cox
2011-03-03 11:43 ` Alan Cox
2011-03-03 13:07 ` Matthew Garrett
2011-03-03 12:52 ` Alan Cox
2011-02-22 20:18 ` [Intel-gfx] [PATCH 1/2] ACPI/Intel: Rework Opregion support Jesse Barnes
2011-03-03 2:14 ` Len Brown
2011-03-14 17:59 ` [PATCH] " Chris Wilson
2011-03-15 1:18 ` Indan Zupancic
2011-03-15 1:52 ` Matthew Garrett
2011-03-15 13:30 ` [Intel-gfx] " Olivier Galibert
2011-03-15 13:32 ` Matthew Garrett [this message]
2011-03-15 13:40 ` Olivier Galibert
2011-03-15 13:43 ` Matthew Garrett
2011-03-15 8:37 ` Chris Wilson
2011-03-15 11:13 ` Indan Zupancic
2011-03-15 11:27 ` Peter Stuge
2011-03-15 11:46 ` Indan Zupancic
2011-03-15 16:06 ` Alex Deucher
2011-03-16 0:02 ` Indan Zupancic
2011-03-16 2:17 ` Alex Deucher
2011-03-16 6:26 ` Indan Zupancic
2011-03-16 14:11 ` Jerome Glisse
2011-03-16 3:46 ` Dave Airlie
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