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drm/i915: Fail to load driver if KMS request without GEM

Message ID 1274084634-11981-1-git-send-email-chris@chris-wilson.co.uk (mailing list archive)
State Deferred, archived
Headers show

Commit Message

Chris Wilson May 17, 2010, 8:23 a.m. UTC 
None
diff mbox

Patch

diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 851a2f8..39a685e 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -1672,6 +1672,13 @@  int i915_driver_load(struct drm_device *dev, unsigned long flags)
 		dev_priv->has_gem = 0;
 	}
 
+	if (dev_priv->has_gem == 0 &&
+	    drm_core_check_feature(dev, DRIVER_MODESET)) {
+		DRM_ERROR("kernel modesetting requires GEM, disabling driver.\n");
+		ret = -ENODEV;
+		goto out_iomapfree;
+	}
+
 	dev->driver->get_vblank_counter = i915_get_vblank_counter;
 	dev->max_vblank_count = 0xffffff; /* only 24 bits of frame count */
 	if (IS_G4X(dev) || IS_IRONLAKE(dev) || IS_GEN6(dev)) {