drm/i915: GEM on PAE has problems - disable it for now.

[linux-2.6-omap-h63xx.git] / drivers / gpu / drm / i915 / i915_dma.c

diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 0d215e38606a32a053a620da3026139860e7fa5a..afa8a12cd00902c1c34ea4f4ba83e55c3b7a74e2 100644 (file)
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -717,7 +717,7 @@ static int i915_getparam(struct drm_device *dev, void *data,
                value = dev->pci_device;
                break;
        case I915_PARAM_HAS_GEM:
-               value = 1;
+               value = dev_priv->has_gem;
                break;
        default:
                DRM_ERROR("Unknown parameter %d\n", param->param);
@@ -830,6 +830,14 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
 
        dev_priv->regs = ioremap(base, size);
 
+#ifdef CONFIG_HIGHMEM64G
+       /* don't enable GEM on PAE - needs agp + set_memory_* interface fixes */
+       dev_priv->has_gem = 0;
+#else
+       /* enable GEM by default */
+       dev_priv->has_gem = 1;
+#endif
+
        i915_gem_load(dev);
 
        /* Init HWS */
@@ -847,15 +855,23 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
         * and the registers being closely associated.
         *
         * According to chipset errata, on the 965GM, MSI interrupts may
-        * be lost or delayed
+        * be lost or delayed, but we use them anyways to avoid
+        * stuck interrupts on some machines.
         */
-       if (!IS_I945G(dev) && !IS_I945GM(dev) && !IS_I965GM(dev))
+       if (!IS_I945G(dev) && !IS_I945GM(dev))
                pci_enable_msi(dev->pdev);
 
        intel_opregion_init(dev);
 
        spin_lock_init(&dev_priv->user_irq_lock);
 
+       ret = drm_vblank_init(dev, I915_NUM_PIPE);
+
+       if (ret) {
+               (void) i915_driver_unload(dev);
+               return ret;
+       }
+
        return ret;
 }