drm/radeon/kms: Disable agp only if we are dealing with an AGP GPU

On IGP if you pass option agpmode=-1 you would overwrite the set_page
function callback with improper function which endup in non functioning
hw. This patch will disable agp when giving agpmode=-1 parameter only
if we are dealing with an AGP GPU.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index 41bb76f..db0835d 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -553,7 +553,7 @@ int radeon_device_init(struct radeon_device *rdev,
                return r;
        }
 
-       if (radeon_agpmode == -1) {
+       if (rdev->flags & RADEON_IS_AGP && radeon_agpmode == -1) {
                radeon_agp_disable(rdev);
        }