1 files changed, 54 insertions, 10 deletions

diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 62a4bf7b49df..81f1cff56fd5 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -177,6 +177,14 @@ static int i915_initialize(struct drm_device * dev, drm_i915_init_t * init)
         drm_i915_private_t *dev_priv = dev->dev_private;
         struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
 
+        master_priv->sarea = drm_getsarea(dev);
+        if (master_priv->sarea) {
+                master_priv->sarea_priv = (drm_i915_sarea_t *)
+                        ((u8 *)master_priv->sarea->handle + init->sarea_priv_offset);
+        } else {
+                DRM_DEBUG("sarea not found assuming DRI2 userspace\n");
+        }
+
         if (init->ring_size != 0) {
                 if (dev_priv->ring.ring_obj != NULL) {
                         i915_dma_cleanup(dev);
@@ -723,8 +731,11 @@ static int i915_getparam(struct drm_device *dev, void *data,
         case I915_PARAM_HAS_GEM:
                 value = dev_priv->has_gem;
                 break;
+        case I915_PARAM_NUM_FENCES_AVAIL:
+                value = dev_priv->num_fence_regs - dev_priv->fence_reg_start;
+                break;
         default:
-                DRM_ERROR("Unknown parameter %d\n", param->param);
+                DRM_DEBUG("Unknown parameter %d\n", param->param);
                 return -EINVAL;
         }
 
@@ -756,8 +767,15 @@ static int i915_setparam(struct drm_device *dev, void *data,
         case I915_SETPARAM_ALLOW_BATCHBUFFER:
                 dev_priv->allow_batchbuffer = param->value;
                 break;
+        case I915_SETPARAM_NUM_USED_FENCES:
+                if (param->value > dev_priv->num_fence_regs ||
+                    param->value < 0)
+                        return -EINVAL;
+                /* Userspace can use first N regs */
+                dev_priv->fence_reg_start = param->value;
+                break;
         default:
-                DRM_ERROR("unknown parameter %d\n", param->param);
+                DRM_DEBUG("unknown parameter %d\n", param->param);
                 return -EINVAL;
         }
 
@@ -936,13 +954,14 @@ static int i915_load_modeset_init(struct drm_device *dev)
         dev->mode_config.fb_base = drm_get_resource_start(dev, fb_bar) &
                 0xff000000;
 
-        DRM_DEBUG("*** fb base 0x%08lx\n", dev->mode_config.fb_base);
-
-        if (IS_MOBILE(dev) || (IS_I9XX(dev) && !IS_I965G(dev) && !IS_G33(dev)))
+        if (IS_MOBILE(dev) || IS_I9XX(dev))
                 dev_priv->cursor_needs_physical = true;
         else
                 dev_priv->cursor_needs_physical = false;
 
+        if (IS_I965G(dev) || IS_G33(dev))
+                dev_priv->cursor_needs_physical = false;
+
         ret = i915_probe_agp(dev, &agp_size, &prealloc_size);
         if (ret)
                 goto kfree_devname;
@@ -957,10 +976,6 @@ static int i915_load_modeset_init(struct drm_device *dev)
         if (ret)
                 goto kfree_devname;
 
-        dev_priv->mm.gtt_mapping =
-                io_mapping_create_wc(dev->agp->base,
-                                     dev->agp->agp_info.aper_size * 1024*1024);
-
         /* Allow hardware batchbuffers unless told otherwise.
          */
         dev_priv->allow_batchbuffer = 1;
@@ -1072,6 +1087,23 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
                 goto free_priv;
         }
 
+        dev_priv->mm.gtt_mapping =
+                io_mapping_create_wc(dev->agp->base,
+                                     dev->agp->agp_info.aper_size * 1024*1024);
+        /* Set up a WC MTRR for non-PAT systems.  This is more common than
+         * one would think, because the kernel disables PAT on first
+         * generation Core chips because WC PAT gets overridden by a UC
+         * MTRR if present.  Even if a UC MTRR isn't present.
+         */
+        dev_priv->mm.gtt_mtrr = mtrr_add(dev->agp->base,
+                                         dev->agp->agp_info.aper_size *
+                                         1024 * 1024,
+                                         MTRR_TYPE_WRCOMB, 1);
+        if (dev_priv->mm.gtt_mtrr < 0) {
+                DRM_INFO("MTRR allocation failed\n.  Graphics "
+                         "performance may suffer.\n");
+        }
+
 #ifdef CONFIG_HIGHMEM64G
         /* don't enable GEM on PAE - needs agp + set_memory_* interface fixes */
         dev_priv->has_gem = 0;
@@ -1080,6 +1112,10 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
         dev_priv->has_gem = 1;
 #endif
 
+        dev->driver->get_vblank_counter = i915_get_vblank_counter;
+        if (IS_GM45(dev))
+                dev->driver->get_vblank_counter = gm45_get_vblank_counter;
+
         i915_gem_load(dev);
 
         /* Init HWS */
@@ -1136,8 +1172,14 @@ int i915_driver_unload(struct drm_device *dev)
 {
         struct drm_i915_private *dev_priv = dev->dev_private;
 
+        io_mapping_free(dev_priv->mm.gtt_mapping);
+        if (dev_priv->mm.gtt_mtrr >= 0) {
+                mtrr_del(dev_priv->mm.gtt_mtrr, dev->agp->base,
+                         dev->agp->agp_info.aper_size * 1024 * 1024);
+                dev_priv->mm.gtt_mtrr = -1;
+        }
+
         if (drm_core_check_feature(dev, DRIVER_MODESET)) {
-                io_mapping_free(dev_priv->mm.gtt_mapping);
                 drm_irq_uninstall(dev);
         }
 
@@ -1152,6 +1194,8 @@ int i915_driver_unload(struct drm_device *dev)
         if (drm_core_check_feature(dev, DRIVER_MODESET)) {
                 intel_modeset_cleanup(dev);
 
+                i915_gem_free_all_phys_object(dev);
+
                 mutex_lock(&dev->struct_mutex);
                 i915_gem_cleanup_ringbuffer(dev);
                 mutex_unlock(&dev->struct_mutex);