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drm/radeon/kms: never treat rs4xx as AGP

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RS4xx+ IGP chips use an internal gart, however,
some of them have the agp cap bits set in their pci
configs.  Make sure to clear the AGP flag as AGP will
not work with them.

Should fix fdo bug 27225

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher 2010-03-21 14:02:25 -04:00 committed by Dave Airlie
parent f47299c55a
commit f95df9ca68
1 changed files with 8 additions and 0 deletions
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8
drivers/gpu/drm/radeon/radeon_device.c
View file

@ -562,6 +562,14 @@ int radeon_device_init(struct radeon_device *rdev,
return r;
radeon_check_arguments(rdev);
/* all of the newer IGP chips have an internal gart
* However some rs4xx report as AGP, so remove that here.
*/
if ((rdev->family >= CHIP_RS400) &&
(rdev->flags & RADEON_IS_IGP)) {
rdev->flags &= ~RADEON_IS_AGP;
}
if (rdev->flags & RADEON_IS_AGP && radeon_agpmode == -1) {
radeon_agp_disable(rdev);
}