drm/qxl: support 64bit surface bar

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qxl devices can have a 64bit surface bar, which is quite handy if
you need a bit more surface memory.  So try to use it if it is
present.  Note that this bar might be mapped above 4g.

QEMU command line to check that out:

    qemu-system-x86_64 -m 4g \
        -vga qxl -global qxl-vga.vram64_size_mb=512 \
        $otheroptions

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

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Gerd Hoffmann 2013-10-11 10:01:10 +02:00 • committed by Dave Airlie

parent 121a6a1743

commit 35541782dc

1 changed files with 25 additions and 7 deletions

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drivers/gpu/drm/qxl/qxl_kms.c

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