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-rw-r--r--drivers/gpu/drm/i915/i915_drv.c21
1 files changed, 15 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index a378c08..79be879 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -930,10 +930,12 @@ int i915_reset(struct drm_device *dev)
return 0;
}
-
static int __devinit
i915_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
+ struct intel_device_info *intel_info =
+ (struct intel_device_info *) ent->driver_data;
+
/* Only bind to function 0 of the device. Early generations
* used function 1 as a placeholder for multi-head. This causes
* us confusion instead, especially on the systems where both
@@ -942,6 +944,18 @@ i915_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
if (PCI_FUNC(pdev->devfn))
return -ENODEV;
+ /* We've managed to ship a kms-enabled ddx that shipped with an XvMC
+ * implementation for gen3 (and only gen3) that used legacy drm maps
+ * (gasp!) to share buffers between X and the client. Hence we need to
+ * keep around the fake agp stuff for gen3, even when kms is enabled. */
+ if (intel_info->gen != 3) {
+ driver.driver_features &=
+ ~(DRIVER_USE_AGP | DRIVER_REQUIRE_AGP);
+ } else if (!intel_agp_enabled) {
+ DRM_ERROR("drm/i915 can't work without intel_agp module!\n");
+ return -ENODEV;
+ }
+
return drm_get_pci_dev(pdev, ent, &driver);
}
@@ -1102,11 +1116,6 @@ static struct pci_driver i915_pci_driver = {
static int __init i915_init(void)
{
- if (!intel_agp_enabled) {
- DRM_ERROR("drm/i915 can't work without intel_agp module!\n");
- return -ENODEV;
- }
-
driver.num_ioctls = i915_max_ioctl;
/*