[Xen-bugs] [Bug 1156] Xorg failed to start on Intel Corporation 82G33/G31 Express Integrated Graphics Controller (Couldn't allocate video memory)

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http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1156





------- Comment #1 from nscheibl@xxxxxxxxx  2008-01-30 14:22 -------
I think this has been fixed in vanilla kernel-2.6.22 or 2.6.23, here are
interesting commits about G33 and GTT/AGPGART:

########################################################################
ChangeLog-2.6.22:
commit 874808c6dd429f7431b906a32c7f78a68e7636af
Author: Wang Zhenyu <zhenyu.z.wang@xxxxxxxxx>
Date:   Wed Jun 6 11:16:25 2007 +0800

    [AGPGART] intel_agp: Add support for G33, Q33 and Q35 chipsets

    This patch adds pci ids for G33, Q33 and Q35 chips, and update with new
    GTT size and stolen mem size detect method on these chips.

    Signed-off-by: Wang Zhenyu <zhenyu.z.wang@xxxxxxxxx>
    Signed-off-by: Dave Jones <davej@xxxxxxxxxx>

commit dc7a93190c21edbf3ed23e678ad04f852b9cff28
Author: Wang Zhenyu <zhenyu.z.wang@xxxxxxxxx>
Date:   Sun Jun 10 15:58:19 2007 +1000

    drm/i915:  Add support for the G33, Q33, and Q35 chipsets.

    These require that the status page be referenced by a pointer in GTT,
rather
    than phsyical memory.  So, we have the X Server allocate that memory and
tell
    us the address, instead.

    Signed-off-by: Dave Airlie <airlied@xxxxxxxx>

##########################################################################
Changelog-2.6.23

commit f443675affe3f16dd428e46f0f7fd3f4d703eeab
Author: Zhenyu Wang <zhenyu.z.wang@xxxxxxxxx>
Date:   Tue Sep 11 15:23:57 2007 -0700

    intel_agp: fix stolen mem range on G33

    G33 GTT stolen memory is below graphics data stolen memory and be seperate,
    so don't subtract it in stolen mem counting.

    Signed-off-by: Zhenyu Wang <zhenyu.z.wang@xxxxxxxxx>
    Acked-by: Dave Airlie <airlied@xxxxxxxx>
    Cc: Dave Jones <davej@xxxxxxxxxxxxxxxxx>
    Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
    Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>

commit 3a4986955c0d9806e96a9d738ef7c40cb0cdaba3
Author: Kyle McMartin <kyle@xxxxxxxxxxx>
Date:   Sat Oct 6 01:42:34 2007 -0400

    Revert "intel_agp: fix stolen mem range on G33"

    This reverts commit f443675affe3f16dd428e46f0f7fd3f4d703eeab, which
    breaks horribly if you aren't running an unreleased xf86-video-intel
    driver out of git.

    Signed-off-by: Kyle McMartin <kyle@xxxxxxxxxxx>
    Cc: Dave Airlie <airlied@xxxxxxxx>commit
e67aa27a6179c287983c6c525beb5320f5cd1672
Author: Dave Airlie <airlied@xxxxxxxx>
Date:   Tue Sep 18 22:46:35 2007 -0700

    intel-agp: Fix i830 mask variable that changed with G33 support

    The mask on i830 should be 0x70 always, later chips 0xF0 should be okay.

    Signed-off-by: Dave Airlie <airlied@xxxxxxxx>
    Acked-by: Zhenyu Wang <zhenyu.z.wang@xxxxxxxxx>
    Cc: Michael Haas <laga@xxxxxxxxxxx>
    Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>

commit 4740622c5c805d88c63a50747a2d05537dd233cf
Author: Zhenyu Wang <zhenyu.z.wang@xxxxxxxxx>
Date:   Tue Sep 11 15:23:58 2007 -0700

    intel_agp: fix GTT map size on G33

    G33 has 1MB GTT table range.  Fix GTT mapping in case like 512MB aperture
    size.

    Signed-off-by: Zhenyu Wang <zhenyu.z.wang@xxxxxxxxx>
    Acked-by: Dave Airlie <airlied@xxxxxxxx>
    Cc: Dave Jones <davej@xxxxxxxxxxxxxxxxx>
    Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
    Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>


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