Merge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6

* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (26 commits)
  drm/radeon: update sarea copies of last_ variables on resume.
  drm/i915: Keep refs on the object over the lifetime of vmas for GTT mmap.
  drm/i915: take struct mutex around fb unref
  drm: Use spread spectrum when the bios tells us it's ok.
  drm: Collapse identical i8xx_clock() and i9xx_clock().
  drm: Bring PLL limits in sync with DDX values.
  drm: Add locking around cursor gem operations.
  drm: Propagate failure from setting crtc base.
  drm: Check for a NULL encoder when reverting on error path
  drm/i915: Cleanup the hws on ringbuffer constrution failure.
  drm/i915: Don't add panel_fixed_mode to the probed modes list at LVDS init.
  drm: Release user fbs in drm_release
  drm/i915: Unpin the fb on error during construction.
  drm/i915: Unpin the hws if we fail to kmap.
  drm/i915: Unpin the ringbuffer if we fail to ioremap it.
  drm/i915: unpin for an invalid memory domain.
  drm/i915: Release and unlock on mmap_gtt error path.
  drm/i915: Set framebuffer alignment based upon the fence constraints.
  drm: Do not leak a new reference for flink() on an existing name
  drm/i915: Fix potential AB-BA deadlock in i915_gem_execbuffer()
  ...

15 files changed, 271 insertions, 167 deletions

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index bfce0992fefb..94a768871734 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -1741,9 +1741,8 @@ out:
  * RETURNS:
  * Zero on success, errno on failure.
  */
-void drm_fb_release(struct file *filp)
+void drm_fb_release(struct drm_file *priv)
 {
-        struct drm_file *priv = filp->private_data;
         struct drm_device *dev = priv->minor->dev;
         struct drm_framebuffer *fb, *tfb;
 
diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c
index 964c5eb1fada..733028b4d45e 100644
--- a/drivers/gpu/drm/drm_crtc_helper.c
+++ b/drivers/gpu/drm/drm_crtc_helper.c
@@ -512,8 +512,8 @@ bool drm_crtc_helper_set_mode(struct drm_crtc *crtc,
         if (drm_mode_equal(&saved_mode, &crtc->mode)) {
                 if (saved_x != crtc->x || saved_y != crtc->y ||
                     depth_changed || bpp_changed) {
-                        crtc_funcs->mode_set_base(crtc, crtc->x, crtc->y,
-                                                  old_fb);
+                        ret = !crtc_funcs->mode_set_base(crtc, crtc->x, crtc->y,
+                                                         old_fb);
                         goto done;
                 }
         }
@@ -552,7 +552,9 @@ bool drm_crtc_helper_set_mode(struct drm_crtc *crtc,
         /* Set up the DPLL and any encoders state that needs to adjust or depend
          * on the DPLL.
          */
-        crtc_funcs->mode_set(crtc, mode, adjusted_mode, x, y, old_fb);
+        ret = !crtc_funcs->mode_set(crtc, mode, adjusted_mode, x, y, old_fb);
+        if (!ret)
+            goto done;
 
         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
 
@@ -752,6 +754,8 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
                         if (!drm_crtc_helper_set_mode(set->crtc, set->mode,
                                                       set->x, set->y,
                                                       old_fb)) {
+                                DRM_ERROR("failed to set mode on crtc %p\n",
+                                          set->crtc);
                                 ret = -EINVAL;
                                 goto fail_set_mode;
                         }
@@ -765,7 +769,10 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
                 old_fb = set->crtc->fb;
                 if (set->crtc->fb != set->fb)
                         set->crtc->fb = set->fb;
-                crtc_funcs->mode_set_base(set->crtc, set->x, set->y, old_fb);
+                ret = crtc_funcs->mode_set_base(set->crtc,
+                                                set->x, set->y, old_fb);
+                if (ret != 0)
+                    goto fail_set_mode;
         }
 
         kfree(save_encoders);
@@ -775,8 +782,12 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
 fail_set_mode:
         set->crtc->enabled = save_enabled;
         count = 0;
-        list_for_each_entry(connector, &dev->mode_config.connector_list, head)
+        list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+                if (!connector->encoder)
+                        continue;
+
                 connector->encoder->crtc = save_crtcs[count++];
+        }
 fail_no_encoder:
         kfree(save_crtcs);
         count = 0;
diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
index b06a53715853..6c020fe5431c 100644
--- a/drivers/gpu/drm/drm_fops.c
+++ b/drivers/gpu/drm/drm_fops.c
@@ -457,6 +457,9 @@ int drm_release(struct inode *inode, struct file *filp)
         if (dev->driver->driver_features & DRIVER_GEM)
                 drm_gem_release(dev, file_priv);
 
+        if (dev->driver->driver_features & DRIVER_MODESET)
+                drm_fb_release(file_priv);
+
         mutex_lock(&dev->ctxlist_mutex);
         if (!list_empty(&dev->ctxlist)) {
                 struct drm_ctx_list *pos, *n;
diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
index 6915fb82d0b0..88d3368ffddd 100644
--- a/drivers/gpu/drm/drm_gem.c
+++ b/drivers/gpu/drm/drm_gem.c
@@ -104,8 +104,8 @@ drm_gem_init(struct drm_device *dev)
 
         if (drm_mm_init(&mm->offset_manager, DRM_FILE_PAGE_OFFSET_START,
                         DRM_FILE_PAGE_OFFSET_SIZE)) {
-                drm_free(mm, sizeof(struct drm_gem_mm), DRM_MEM_MM);
                 drm_ht_remove(&mm->offset_hash);
+                drm_free(mm, sizeof(struct drm_gem_mm), DRM_MEM_MM);
                 return -ENOMEM;
         }
 
@@ -295,35 +295,37 @@ drm_gem_flink_ioctl(struct drm_device *dev, void *data,
                 return -EBADF;
 
 again:
-        if (idr_pre_get(&dev->object_name_idr, GFP_KERNEL) == 0)
-                return -ENOMEM;
+        if (idr_pre_get(&dev->object_name_idr, GFP_KERNEL) == 0) {
+                ret = -ENOMEM;
+                goto err;
+        }
 
         spin_lock(&dev->object_name_lock);
-        if (obj->name) {
-                args->name = obj->name;
+        if (!obj->name) {
+                ret = idr_get_new_above(&dev->object_name_idr, obj, 1,
+                                        &obj->name);
+                args->name = (uint64_t) obj->name;
                 spin_unlock(&dev->object_name_lock);
-                return 0;
-        }
-        ret = idr_get_new_above(&dev->object_name_idr, obj, 1,
-                                 &obj->name);
-        spin_unlock(&dev->object_name_lock);
-        if (ret == -EAGAIN)
-                goto again;
 
-        if (ret != 0) {
-                mutex_lock(&dev->struct_mutex);
-                drm_gem_object_unreference(obj);
-                mutex_unlock(&dev->struct_mutex);
-                return ret;
-        }
+                if (ret == -EAGAIN)
+                        goto again;
 
-        /*
-         * Leave the reference from the lookup around as the
-         * name table now holds one
-         */
-        args->name = (uint64_t) obj->name;
+                if (ret != 0)
+                        goto err;
 
-        return 0;
+                /* Allocate a reference for the name table.  */
+                drm_gem_object_reference(obj);
+        } else {
+                args->name = (uint64_t) obj->name;
+                spin_unlock(&dev->object_name_lock);
+                ret = 0;
+        }
+
+err:
+        mutex_lock(&dev->struct_mutex);
+        drm_gem_object_unreference(obj);
+        mutex_unlock(&dev->struct_mutex);
+        return ret;
 }
 
 /**
@@ -448,6 +450,7 @@ drm_gem_object_handle_free(struct kref *kref)
         spin_lock(&dev->object_name_lock);
         if (obj->name) {
                 idr_remove(&dev->object_name_idr, obj->name);
+                obj->name = 0;
                 spin_unlock(&dev->object_name_lock);
                 /*
                  * The object name held a reference to this object, drop
@@ -460,6 +463,26 @@ drm_gem_object_handle_free(struct kref *kref)
 }
 EXPORT_SYMBOL(drm_gem_object_handle_free);
 
+void drm_gem_vm_open(struct vm_area_struct *vma)
+{
+        struct drm_gem_object *obj = vma->vm_private_data;
+
+        drm_gem_object_reference(obj);
+}
+EXPORT_SYMBOL(drm_gem_vm_open);
+
+void drm_gem_vm_close(struct vm_area_struct *vma)
+{
+        struct drm_gem_object *obj = vma->vm_private_data;
+        struct drm_device *dev = obj->dev;
+
+        mutex_lock(&dev->struct_mutex);
+        drm_gem_object_unreference(obj);
+        mutex_unlock(&dev->struct_mutex);
+}
+EXPORT_SYMBOL(drm_gem_vm_close);
+
+
 /**
  * drm_gem_mmap - memory map routine for GEM objects
  * @filp: DRM file pointer
@@ -521,6 +544,14 @@ int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma)
 #endif
         vma->vm_page_prot = __pgprot(prot);
 
+        /* Take a ref for this mapping of the object, so that the fault
+         * handler can dereference the mmap offset's pointer to the object.
+         * This reference is cleaned up by the corresponding vm_close
+         * (which should happen whether the vma was created by this call, or
+         * by a vm_open due to mremap or partial unmap or whatever).
+         */
+        drm_gem_object_reference(obj);
+
         vma->vm_file = filp;    /* Needed for drm_vm_open() */
         drm_vm_open_locked(vma);
 
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index aac12ee31a46..a31cbdbc3c54 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -94,6 +94,8 @@ static int i915_resume(struct drm_device *dev)
 
 static struct vm_operations_struct i915_gem_vm_ops = {
         .fault = i915_gem_fault,
+        .open = drm_gem_vm_open,
+        .close = drm_gem_vm_close,
 };
 
 static struct drm_driver driver = {
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 7325363164f8..135a08f615cd 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -184,6 +184,8 @@ typedef struct drm_i915_private {
         unsigned int lvds_dither:1;
         unsigned int lvds_vbt:1;
         unsigned int int_crt_support:1;
+        unsigned int lvds_use_ssc:1;
+        int lvds_ssc_freq;
 
         struct drm_i915_fence_reg fence_regs[16]; /* assume 965 */
         int fence_reg_start; /* 4 if userland hasn't ioctl'd us yet */
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 818576654092..ac534c9a2f81 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -607,8 +607,6 @@ int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
         case -EAGAIN:
                 return VM_FAULT_OOM;
         case -EFAULT:
-        case -EBUSY:
-                DRM_ERROR("can't insert pfn??  fault or busy...\n");
                 return VM_FAULT_SIGBUS;
         default:
                 return VM_FAULT_NOPAGE;
@@ -684,6 +682,30 @@ out_free_list:
         return ret;
 }
 
+static void
+i915_gem_free_mmap_offset(struct drm_gem_object *obj)
+{
+        struct drm_device *dev = obj->dev;
+        struct drm_i915_gem_object *obj_priv = obj->driver_private;
+        struct drm_gem_mm *mm = dev->mm_private;
+        struct drm_map_list *list;
+
+        list = &obj->map_list;
+        drm_ht_remove_item(&mm->offset_hash, &list->hash);
+
+        if (list->file_offset_node) {
+                drm_mm_put_block(list->file_offset_node);
+                list->file_offset_node = NULL;
+        }
+
+        if (list->map) {
+                drm_free(list->map, sizeof(struct drm_map), DRM_MEM_DRIVER);
+                list->map = NULL;
+        }
+
+        obj_priv->mmap_offset = 0;
+}
+
 /**
  * i915_gem_get_gtt_alignment - return required GTT alignment for an object
  * @obj: object to check
@@ -758,8 +780,11 @@ i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data,
 
         if (!obj_priv->mmap_offset) {
                 ret = i915_gem_create_mmap_offset(obj);
-                if (ret)
+                if (ret) {
+                        drm_gem_object_unreference(obj);
+                        mutex_unlock(&dev->struct_mutex);
                         return ret;
+                }
         }
 
         args->offset = obj_priv->mmap_offset;
@@ -2251,6 +2276,8 @@ i915_gem_object_pin_and_relocate(struct drm_gem_object *obj,
                                   (int) reloc.offset,
                                   reloc.read_domains,
                                   reloc.write_domain);
+                        drm_gem_object_unreference(target_obj);
+                        i915_gem_object_unpin(obj);
                         return -EINVAL;
                 }
 
@@ -2480,13 +2507,15 @@ i915_gem_execbuffer(struct drm_device *dev, void *data,
         if (dev_priv->mm.wedged) {
                 DRM_ERROR("Execbuf while wedged\n");
                 mutex_unlock(&dev->struct_mutex);
-                return -EIO;
+                ret = -EIO;
+                goto pre_mutex_err;
         }
 
         if (dev_priv->mm.suspended) {
                 DRM_ERROR("Execbuf while VT-switched.\n");
                 mutex_unlock(&dev->struct_mutex);
-                return -EBUSY;
+                ret = -EBUSY;
+                goto pre_mutex_err;
         }
 
         /* Look up object handles */
@@ -2632,15 +2661,6 @@ i915_gem_execbuffer(struct drm_device *dev, void *data,
 
         i915_verify_inactive(dev, __FILE__, __LINE__);
 
-        /* Copy the new buffer offsets back to the user's exec list. */
-        ret = copy_to_user((struct drm_i915_relocation_entry __user *)
-                           (uintptr_t) args->buffers_ptr,
-                           exec_list,
-                           sizeof(*exec_list) * args->buffer_count);
-        if (ret)
-                DRM_ERROR("failed to copy %d exec entries "
-                          "back to user (%d)\n",
-                           args->buffer_count, ret);
 err:
         for (i = 0; i < pinned; i++)
                 i915_gem_object_unpin(object_list[i]);
@@ -2650,6 +2670,18 @@ err:
 
         mutex_unlock(&dev->struct_mutex);
 
+        if (!ret) {
+                /* Copy the new buffer offsets back to the user's exec list. */
+                ret = copy_to_user((struct drm_i915_relocation_entry __user *)
+                                   (uintptr_t) args->buffers_ptr,
+                                   exec_list,
+                                   sizeof(*exec_list) * args->buffer_count);
+                if (ret)
+                        DRM_ERROR("failed to copy %d exec entries "
+                                  "back to user (%d)\n",
+                                  args->buffer_count, ret);
+        }
+
 pre_mutex_err:
         drm_free(object_list, sizeof(*object_list) * args->buffer_count,
                  DRM_MEM_DRIVER);
@@ -2753,6 +2785,7 @@ i915_gem_pin_ioctl(struct drm_device *dev, void *data,
         if (obj_priv->pin_filp != NULL && obj_priv->pin_filp != file_priv) {
                 DRM_ERROR("Already pinned in i915_gem_pin_ioctl(): %d\n",
                           args->handle);
+                drm_gem_object_unreference(obj);
                 mutex_unlock(&dev->struct_mutex);
                 return -EINVAL;
         }
@@ -2885,9 +2918,6 @@ int i915_gem_init_object(struct drm_gem_object *obj)
 void i915_gem_free_object(struct drm_gem_object *obj)
 {
         struct drm_device *dev = obj->dev;
-        struct drm_gem_mm *mm = dev->mm_private;
-        struct drm_map_list *list;
-        struct drm_map *map;
         struct drm_i915_gem_object *obj_priv = obj->driver_private;
 
         while (obj_priv->pin_count > 0)
@@ -2898,19 +2928,7 @@ void i915_gem_free_object(struct drm_gem_object *obj)
 
         i915_gem_object_unbind(obj);
 
-        list = &obj->map_list;
-        drm_ht_remove_item(&mm->offset_hash, &list->hash);
-
-        if (list->file_offset_node) {
-                drm_mm_put_block(list->file_offset_node);
-                list->file_offset_node = NULL;
-        }
-
-        map = list->map;
-        if (map) {
-                drm_free(map, sizeof(*map), DRM_MEM_DRIVER);
-                list->map = NULL;
-        }
+        i915_gem_free_mmap_offset(obj);
 
         drm_free(obj_priv->page_cpu_valid, 1, DRM_MEM_DRIVER);
         drm_free(obj->driver_private, 1, DRM_MEM_DRIVER);
@@ -3095,6 +3113,7 @@ i915_gem_init_hws(struct drm_device *dev)
         if (dev_priv->hw_status_page == NULL) {
                 DRM_ERROR("Failed to map status page.\n");
                 memset(&dev_priv->hws_map, 0, sizeof(dev_priv->hws_map));
+                i915_gem_object_unpin(obj);
                 drm_gem_object_unreference(obj);
                 return -EINVAL;
         }
@@ -3107,6 +3126,27 @@ i915_gem_init_hws(struct drm_device *dev)
         return 0;
 }
 
+static void
+i915_gem_cleanup_hws(struct drm_device *dev)
+{
+        drm_i915_private_t *dev_priv = dev->dev_private;
+        struct drm_gem_object *obj = dev_priv->hws_obj;
+        struct drm_i915_gem_object *obj_priv = obj->driver_private;
+
+        if (dev_priv->hws_obj == NULL)
+                return;
+
+        kunmap(obj_priv->page_list[0]);
+        i915_gem_object_unpin(obj);
+        drm_gem_object_unreference(obj);
+        dev_priv->hws_obj = NULL;
+        memset(&dev_priv->hws_map, 0, sizeof(dev_priv->hws_map));
+        dev_priv->hw_status_page = NULL;
+
+        /* Write high address into HWS_PGA when disabling. */
+        I915_WRITE(HWS_PGA, 0x1ffff000);
+}
+
 int
 i915_gem_init_ringbuffer(struct drm_device *dev)
 {
@@ -3124,6 +3164,7 @@ i915_gem_init_ringbuffer(struct drm_device *dev)
         obj = drm_gem_object_alloc(dev, 128 * 1024);
         if (obj == NULL) {
                 DRM_ERROR("Failed to allocate ringbuffer\n");
+                i915_gem_cleanup_hws(dev);
                 return -ENOMEM;
         }
         obj_priv = obj->driver_private;
@@ -3131,6 +3172,7 @@ i915_gem_init_ringbuffer(struct drm_device *dev)
         ret = i915_gem_object_pin(obj, 4096);
         if (ret != 0) {
                 drm_gem_object_unreference(obj);
+                i915_gem_cleanup_hws(dev);
                 return ret;
         }
 
@@ -3148,7 +3190,9 @@ i915_gem_init_ringbuffer(struct drm_device *dev)
         if (ring->map.handle == NULL) {
                 DRM_ERROR("Failed to map ringbuffer.\n");
                 memset(&dev_priv->ring, 0, sizeof(dev_priv->ring));
+                i915_gem_object_unpin(obj);
                 drm_gem_object_unreference(obj);
+                i915_gem_cleanup_hws(dev);
                 return -EINVAL;
         }
         ring->ring_obj = obj;
@@ -3228,20 +3272,7 @@ i915_gem_cleanup_ringbuffer(struct drm_device *dev)
         dev_priv->ring.ring_obj = NULL;
         memset(&dev_priv->ring, 0, sizeof(dev_priv->ring));
 
-        if (dev_priv->hws_obj != NULL) {
-                struct drm_gem_object *obj = dev_priv->hws_obj;
-                struct drm_i915_gem_object *obj_priv = obj->driver_private;
-
-                kunmap(obj_priv->page_list[0]);
-                i915_gem_object_unpin(obj);
-                drm_gem_object_unreference(obj);
-                dev_priv->hws_obj = NULL;
-                memset(&dev_priv->hws_map, 0, sizeof(dev_priv->hws_map));
-                dev_priv->hw_status_page = NULL;
-
-                /* Write high address into HWS_PGA when disabling. */
-                I915_WRITE(HWS_PGA, 0x1ffff000);
-        }
+        i915_gem_cleanup_hws(dev);
 }
 
 int
diff --git a/drivers/gpu/drm/i915/i915_gem_tiling.c b/drivers/gpu/drm/i915/i915_gem_tiling.c
index fa1685cba840..7fb4191ef934 100644
--- a/drivers/gpu/drm/i915/i915_gem_tiling.c
+++ b/drivers/gpu/drm/i915/i915_gem_tiling.c
@@ -299,9 +299,8 @@ i915_gem_set_tiling(struct drm_device *dev, void *data,
         }
         obj_priv->stride = args->stride;
 
-        mutex_unlock(&dev->struct_mutex);
-
         drm_gem_object_unreference(obj);
+        mutex_unlock(&dev->struct_mutex);
 
         return 0;
 }
@@ -340,9 +339,8 @@ i915_gem_get_tiling(struct drm_device *dev, void *data,
                 DRM_ERROR("unknown tiling mode\n");
         }
 
-        mutex_unlock(&dev->struct_mutex);
-
         drm_gem_object_unreference(obj);
+        mutex_unlock(&dev->struct_mutex);
 
         return 0;
 }
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index 4ca82a025525..65be30dccc77 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -135,6 +135,14 @@ parse_general_features(struct drm_i915_private *dev_priv,
         if (general) {
                 dev_priv->int_tv_support = general->int_tv_support;
                 dev_priv->int_crt_support = general->int_crt_support;
+                dev_priv->lvds_use_ssc = general->enable_ssc;
+
+                if (dev_priv->lvds_use_ssc) {
+                  if (IS_I855(dev_priv->dev))
+                    dev_priv->lvds_ssc_freq = general->ssc_freq ? 66 : 48;
+                  else
+                    dev_priv->lvds_ssc_freq = general->ssc_freq ? 100 : 96;
+                }
         }
 }
 
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index bbdd72909a11..4d2baf7b00be 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -90,12 +90,12 @@ typedef struct {
 #define I9XX_DOT_MAX             400000
 #define I9XX_VCO_MIN            1400000
 #define I9XX_VCO_MAX            2800000
-#define I9XX_N_MIN                    3
-#define I9XX_N_MAX                    8
+#define I9XX_N_MIN                    1
+#define I9XX_N_MAX                    6
 #define I9XX_M_MIN                   70
 #define I9XX_M_MAX                  120
 #define I9XX_M1_MIN                  10
-#define I9XX_M1_MAX                  20
+#define I9XX_M1_MAX                  22
 #define I9XX_M2_MIN                   5
 #define I9XX_M2_MAX                   9
 #define I9XX_P_SDVO_DAC_MIN           5
@@ -189,9 +189,7 @@ static const intel_limit_t *intel_limit(struct drm_crtc *crtc)
         return limit;
 }
 
-/** Derive the pixel clock for the given refclk and divisors for 8xx chips. */
-
-static void i8xx_clock(int refclk, intel_clock_t *clock)
+static void intel_clock(int refclk, intel_clock_t *clock)
 {
         clock->m = 5 * (clock->m1 + 2) + (clock->m2 + 2);
         clock->p = clock->p1 * clock->p2;
@@ -199,25 +197,6 @@ static void i8xx_clock(int refclk, intel_clock_t *clock)
         clock->dot = clock->vco / clock->p;
 }
 
-/** Derive the pixel clock for the given refclk and divisors for 9xx chips. */
-
-static void i9xx_clock(int refclk, intel_clock_t *clock)
-{
-        clock->m = 5 * (clock->m1 + 2) + (clock->m2 + 2);
-        clock->p = clock->p1 * clock->p2;
-        clock->vco = refclk * clock->m / (clock->n + 2);
-        clock->dot = clock->vco / clock->p;
-}
-
-static void intel_clock(struct drm_device *dev, int refclk,
-                        intel_clock_t *clock)
-{
-        if (IS_I9XX(dev))
-                i9xx_clock (refclk, clock);
-        else
-                i8xx_clock (refclk, clock);
-}
-
 /**
  * Returns whether any output on the specified pipe is of the specified type
  */
@@ -238,7 +217,7 @@ bool intel_pipe_has_type (struct drm_crtc *crtc, int type)
     return false;
 }
 
-#define INTELPllInvalid(s)   { /* ErrorF (s) */; return false; }
+#define INTELPllInvalid(s)   do { DRM_DEBUG(s); return false; } while (0)
 /**
  * Returns whether the given set of divisors are valid for a given refclk with
  * the given connectors.
@@ -318,7 +297,7 @@ static bool intel_find_best_PLL(struct drm_crtc *crtc, int target,
                                      clock.p1 <= limit->p1.max; clock.p1++) {
                                         int this_err;
 
-                                        intel_clock(dev, refclk, &clock);
+                                        intel_clock(refclk, &clock);
 
                                         if (!intel_PLL_is_valid(crtc, &clock))
                                                 continue;
@@ -343,7 +322,7 @@ intel_wait_for_vblank(struct drm_device *dev)
         udelay(20000);
 }
 
-static void
+static int
 intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
                     struct drm_framebuffer *old_fb)
 {
@@ -361,11 +340,21 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
         int dspstride = (pipe == 0) ? DSPASTRIDE : DSPBSTRIDE;
         int dspcntr_reg = (pipe == 0) ? DSPACNTR : DSPBCNTR;
         u32 dspcntr, alignment;
+        int ret;
 
         /* no fb bound */
         if (!crtc->fb) {
                 DRM_DEBUG("No FB bound\n");
-                return;
+                return 0;
+        }
+
+        switch (pipe) {
+        case 0:
+        case 1:
+                break;
+        default:
+                DRM_ERROR("Can't update pipe %d in SAREA\n", pipe);
+                return -EINVAL;
         }
 
         intel_fb = to_intel_framebuffer(crtc->fb);
@@ -377,28 +366,30 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
                 alignment = 64 * 1024;
                 break;
         case I915_TILING_X:
-                if (IS_I9XX(dev))
-                        alignment = 1024 * 1024;
-                else
-                        alignment = 512 * 1024;
+                /* pin() will align the object as required by fence */
+                alignment = 0;
                 break;
         case I915_TILING_Y:
                 /* FIXME: Is this true? */
                 DRM_ERROR("Y tiled not allowed for scan out buffers\n");
-                return;
+                return -EINVAL;
         default:
                 BUG();
         }
 
-        if (i915_gem_object_pin(intel_fb->obj, alignment))
-                return;
-
-        i915_gem_object_set_to_gtt_domain(intel_fb->obj, 1);
-
-        Start = obj_priv->gtt_offset;
-        Offset = y * crtc->fb->pitch + x * (crtc->fb->bits_per_pixel / 8);
+        mutex_lock(&dev->struct_mutex);
+        ret = i915_gem_object_pin(intel_fb->obj, alignment);
+        if (ret != 0) {
+                mutex_unlock(&dev->struct_mutex);
+                return ret;
+        }
 
-        I915_WRITE(dspstride, crtc->fb->pitch);
+        ret = i915_gem_object_set_to_gtt_domain(intel_fb->obj, 1);
+        if (ret != 0) {
+                i915_gem_object_unpin(intel_fb->obj);
+                mutex_unlock(&dev->struct_mutex);
+                return ret;
+        }
 
         dspcntr = I915_READ(dspcntr_reg);
         /* Mask out pixel format bits in case we change it */
@@ -419,11 +410,17 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
                 break;
         default:
                 DRM_ERROR("Unknown color depth\n");
-                return;
+                i915_gem_object_unpin(intel_fb->obj);
+                mutex_unlock(&dev->struct_mutex);
+                return -EINVAL;
         }
         I915_WRITE(dspcntr_reg, dspcntr);
 
+        Start = obj_priv->gtt_offset;
+        Offset = y * crtc->fb->pitch + x * (crtc->fb->bits_per_pixel / 8);
+
         DRM_DEBUG("Writing base %08lX %08lX %d %d\n", Start, Offset, x, y);
+        I915_WRITE(dspstride, crtc->fb->pitch);
         if (IS_I965G(dev)) {
                 I915_WRITE(dspbase, Offset);
                 I915_READ(dspbase);
@@ -440,27 +437,24 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
                 intel_fb = to_intel_framebuffer(old_fb);
                 i915_gem_object_unpin(intel_fb->obj);
         }
+        mutex_unlock(&dev->struct_mutex);
 
         if (!dev->primary->master)
-                return;
+                return 0;
 
         master_priv = dev->primary->master->driver_priv;
         if (!master_priv->sarea_priv)
-                return;
+                return 0;
 
-        switch (pipe) {
-        case 0:
-                master_priv->sarea_priv->pipeA_x = x;
-                master_priv->sarea_priv->pipeA_y = y;
-                break;
-        case 1:
+        if (pipe) {
                 master_priv->sarea_priv->pipeB_x = x;
                 master_priv->sarea_priv->pipeB_y = y;
-                break;
-        default:
-                DRM_ERROR("Can't update pipe %d in SAREA\n", pipe);
-                break;
+        } else {
+                master_priv->sarea_priv->pipeA_x = x;
+                master_priv->sarea_priv->pipeA_y = y;
         }
+
+        return 0;
 }
 
 
@@ -708,11 +702,11 @@ static int intel_panel_fitter_pipe (struct drm_device *dev)
         return 1;
 }
 
-static void intel_crtc_mode_set(struct drm_crtc *crtc,
-                                struct drm_display_mode *mode,
-                                struct drm_display_mode *adjusted_mode,
-                                int x, int y,
-                                struct drm_framebuffer *old_fb)
+static int intel_crtc_mode_set(struct drm_crtc *crtc,
+                               struct drm_display_mode *mode,
+                               struct drm_display_mode *adjusted_mode,
+                               int x, int y,
+                               struct drm_framebuffer *old_fb)
 {
         struct drm_device *dev = crtc->dev;
         struct drm_i915_private *dev_priv = dev->dev_private;
@@ -732,13 +726,14 @@ static void intel_crtc_mode_set(struct drm_crtc *crtc,
         int dspsize_reg = (pipe == 0) ? DSPASIZE : DSPBSIZE;
         int dsppos_reg = (pipe == 0) ? DSPAPOS : DSPBPOS;
         int pipesrc_reg = (pipe == 0) ? PIPEASRC : PIPEBSRC;
-        int refclk;
+        int refclk, num_outputs = 0;
         intel_clock_t clock;
         u32 dpll = 0, fp = 0, dspcntr, pipeconf;
         bool ok, is_sdvo = false, is_dvo = false;
         bool is_crt = false, is_lvds = false, is_tv = false;
         struct drm_mode_config *mode_config = &dev->mode_config;
         struct drm_connector *connector;
+        int ret;
 
         drm_vblank_pre_modeset(dev, pipe);
 
@@ -768,9 +763,14 @@ static void intel_crtc_mode_set(struct drm_crtc *crtc,
                         is_crt = true;
                         break;
                 }
+
+                num_outputs++;
         }
 
-        if (IS_I9XX(dev)) {
+        if (is_lvds && dev_priv->lvds_use_ssc && num_outputs < 2) {
+                refclk = dev_priv->lvds_ssc_freq * 1000;
+                DRM_DEBUG("using SSC reference clock of %d MHz\n", refclk / 1000);
+        } else if (IS_I9XX(dev)) {
                 refclk = 96000;
         } else {
                 refclk = 48000;
@@ -779,7 +779,7 @@ static void intel_crtc_mode_set(struct drm_crtc *crtc,
         ok = intel_find_best_PLL(crtc, adjusted_mode->clock, refclk, &clock);
         if (!ok) {
                 DRM_ERROR("Couldn't find PLL settings for mode!\n");
-                return;
+                return -EINVAL;
         }
 
         fp = clock.n << 16 | clock.m1 << 8 | clock.m2;
@@ -829,11 +829,14 @@ static void intel_crtc_mode_set(struct drm_crtc *crtc,
                 }
         }
 
-        if (is_tv) {
+        if (is_sdvo && is_tv)
+                dpll |= PLL_REF_INPUT_TVCLKINBC;
+        else if (is_tv)
                 /* XXX: just matching BIOS for now */
-/*      dpll |= PLL_REF_INPUT_TVCLKINBC; */
+                /*      dpll |= PLL_REF_INPUT_TVCLKINBC; */
                 dpll |= 3;
-        }
+        else if (is_lvds && dev_priv->lvds_use_ssc && num_outputs < 2)
+                dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
         else
                 dpll |= PLL_REF_INPUT_DREFCLK;
 
@@ -950,9 +953,13 @@ static void intel_crtc_mode_set(struct drm_crtc *crtc,
         I915_WRITE(dspcntr_reg, dspcntr);
 
         /* Flush the plane changes */
-        intel_pipe_set_base(crtc, x, y, old_fb);
+        ret = intel_pipe_set_base(crtc, x, y, old_fb);
+        if (ret != 0)
+            return ret;
 
         drm_vblank_post_modeset(dev, pipe);
+
+        return 0;
 }
 
 /** Loads the palette/gamma unit for the CRTC with the prepared values */
@@ -1023,18 +1030,19 @@ static int intel_crtc_cursor_set(struct drm_crtc *crtc,
         }
 
         /* we only need to pin inside GTT if cursor is non-phy */
+        mutex_lock(&dev->struct_mutex);
         if (!dev_priv->cursor_needs_physical) {
                 ret = i915_gem_object_pin(bo, PAGE_SIZE);
                 if (ret) {
                         DRM_ERROR("failed to pin cursor bo\n");
-                        goto fail;
+                        goto fail_locked;
                 }
                 addr = obj_priv->gtt_offset;
         } else {
                 ret = i915_gem_attach_phys_object(dev, bo, (pipe == 0) ? I915_GEM_PHYS_CURSOR_0 : I915_GEM_PHYS_CURSOR_1);
                 if (ret) {
                         DRM_ERROR("failed to attach phys object\n");
-                        goto fail;
+                        goto fail_locked;
                 }
                 addr = obj_priv->phys_obj->handle->busaddr;
         }
@@ -1054,10 +1062,9 @@ static int intel_crtc_cursor_set(struct drm_crtc *crtc,
                                 i915_gem_detach_phys_object(dev, intel_crtc->cursor_bo);
                 } else
                         i915_gem_object_unpin(intel_crtc->cursor_bo);
-                mutex_lock(&dev->struct_mutex);
                 drm_gem_object_unreference(intel_crtc->cursor_bo);
-                mutex_unlock(&dev->struct_mutex);
         }
+        mutex_unlock(&dev->struct_mutex);
 
         intel_crtc->cursor_addr = addr;
         intel_crtc->cursor_bo = bo;
@@ -1065,6 +1072,7 @@ static int intel_crtc_cursor_set(struct drm_crtc *crtc,
         return 0;
 fail:
         mutex_lock(&dev->struct_mutex);
+fail_locked:
         drm_gem_object_unreference(bo);
         mutex_unlock(&dev->struct_mutex);
         return ret;
@@ -1292,7 +1300,7 @@ static int intel_crtc_clock_get(struct drm_device *dev, struct drm_crtc *crtc)
                 }
 
                 /* XXX: Handle the 100Mhz refclk */
-                i9xx_clock(96000, &clock);
+                intel_clock(96000, &clock);
         } else {
                 bool is_lvds = (pipe == 1) && (I915_READ(LVDS) & LVDS_PORT_EN);
 
@@ -1304,9 +1312,9 @@ static int intel_crtc_clock_get(struct drm_device *dev, struct drm_crtc *crtc)
                         if ((dpll & PLL_REF_INPUT_MASK) ==
                             PLLB_REF_INPUT_SPREADSPECTRUMIN) {
                                 /* XXX: might not be 66MHz */
-                                i8xx_clock(66000, &clock);
+                                intel_clock(66000, &clock);
                         } else
-                                i8xx_clock(48000, &clock);
+                                intel_clock(48000, &clock);
                 } else {
                         if (dpll & PLL_P1_DIVIDE_BY_TWO)
                                 clock.p1 = 2;
@@ -1319,7 +1327,7 @@ static int intel_crtc_clock_get(struct drm_device *dev, struct drm_crtc *crtc)
                         else
                                 clock.p2 = 2;
 
-                        i8xx_clock(48000, &clock);
+                        intel_clock(48000, &clock);
                 }
         }
 
@@ -1598,7 +1606,9 @@ intel_user_framebuffer_create(struct drm_device *dev,
 
         ret = intel_framebuffer_create(dev, mode_cmd, &fb, obj);
         if (ret) {
+                mutex_lock(&dev->struct_mutex);
                 drm_gem_object_unreference(obj);
+                mutex_unlock(&dev->struct_mutex);
                 return NULL;
         }
 
diff --git a/drivers/gpu/drm/i915/intel_fb.c b/drivers/gpu/drm/i915/intel_fb.c
index afd1217b8a02..b7f0ebe9f810 100644
--- a/drivers/gpu/drm/i915/intel_fb.c
+++ b/drivers/gpu/drm/i915/intel_fb.c
@@ -473,7 +473,7 @@ static int intelfb_create(struct drm_device *dev, uint32_t fb_width,
         ret = intel_framebuffer_create(dev, &mode_cmd, &fb, fbo);
         if (ret) {
                 DRM_ERROR("failed to allocate fb.\n");
-                goto out_unref;
+                goto out_unpin;
         }
 
         list_add(&fb->filp_head, &dev->mode_config.fb_kernel_list);
@@ -484,7 +484,7 @@ static int intelfb_create(struct drm_device *dev, uint32_t fb_width,
         info = framebuffer_alloc(sizeof(struct intelfb_par), device);
         if (!info) {
                 ret = -ENOMEM;
-                goto out_unref;
+                goto out_unpin;
         }
 
         par = info->par;
@@ -513,7 +513,7 @@ static int intelfb_create(struct drm_device *dev, uint32_t fb_width,
                                        size);
         if (!info->screen_base) {
                 ret = -ENOSPC;
-                goto out_unref;
+                goto out_unpin;
         }
         info->screen_size = size;
 
@@ -608,6 +608,8 @@ static int intelfb_create(struct drm_device *dev, uint32_t fb_width,
         mutex_unlock(&dev->struct_mutex);
         return 0;
 
+out_unpin:
+        i915_gem_object_unpin(fbo);
 out_unref:
         drm_gem_object_unreference(fbo);
         mutex_unlock(&dev->struct_mutex);
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index 6d4f91265354..0d211af98854 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -481,8 +481,6 @@ void intel_lvds_init(struct drm_device *dev)
                 if (dev_priv->panel_fixed_mode) {
                         dev_priv->panel_fixed_mode->type |=
                                 DRM_MODE_TYPE_PREFERRED;
-                        drm_mode_probed_add(connector,
-                                            dev_priv->panel_fixed_mode);
                         goto out;
                 }
         }
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index a30508b639ba..fbe6f3931b1b 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -193,7 +193,7 @@ static bool intel_sdvo_write_byte(struct intel_output *intel_output, int addr,
 
 #define SDVO_CMD_NAME_ENTRY(cmd) {cmd, #cmd}
 /** Mapping of command numbers to names, for debug output */
-const static struct _sdvo_cmd_name {
+static const struct _sdvo_cmd_name {
         u8 cmd;
         char *name;
 } sdvo_cmd_names[] = {
diff --git a/drivers/gpu/drm/i915/intel_tv.c b/drivers/gpu/drm/i915/intel_tv.c
index fbb35dc56f5c..56485d67369b 100644
--- a/drivers/gpu/drm/i915/intel_tv.c
+++ b/drivers/gpu/drm/i915/intel_tv.c
@@ -411,7 +411,7 @@ struct tv_mode {
  * These values account for -1s required.
  */
 
-const static struct tv_mode tv_modes[] = {
+static const struct tv_mode tv_modes[] = {
         {
                 .name           = "NTSC-M",
                 .clock          = 107520,
diff --git a/drivers/gpu/drm/radeon/radeon_cp.c b/drivers/gpu/drm/radeon/radeon_cp.c
index df4cf97e5d97..92965dbb3c14 100644
--- a/drivers/gpu/drm/radeon/radeon_cp.c
+++ b/drivers/gpu/drm/radeon/radeon_cp.c
@@ -557,8 +557,10 @@ static int radeon_do_engine_reset(struct drm_device * dev)
 }
 
 static void radeon_cp_init_ring_buffer(struct drm_device * dev,
-                                       drm_radeon_private_t * dev_priv)
+                                       drm_radeon_private_t *dev_priv,
+                                       struct drm_file *file_priv)
 {
+        struct drm_radeon_master_private *master_priv;
         u32 ring_start, cur_read_ptr;
         u32 tmp;
 
@@ -677,6 +679,14 @@ static void radeon_cp_init_ring_buffer(struct drm_device * dev,
         dev_priv->scratch[2] = 0;
         RADEON_WRITE(RADEON_LAST_CLEAR_REG, 0);
 
+        /* reset sarea copies of these */
+        master_priv = file_priv->master->driver_priv;
+        if (master_priv->sarea_priv) {
+                master_priv->sarea_priv->last_frame = 0;
+                master_priv->sarea_priv->last_dispatch = 0;
+                master_priv->sarea_priv->last_clear = 0;
+        }
+
         radeon_do_wait_for_idle(dev_priv);
 
         /* Sync everything up */
@@ -1215,7 +1225,7 @@ static int radeon_do_init_cp(struct drm_device *dev, drm_radeon_init_t *init,
         }
 
         radeon_cp_load_microcode(dev_priv);
-        radeon_cp_init_ring_buffer(dev, dev_priv);
+        radeon_cp_init_ring_buffer(dev, dev_priv, file_priv);
 
         dev_priv->last_buf = 0;
 
@@ -1281,7 +1291,7 @@ static int radeon_do_cleanup_cp(struct drm_device * dev)
  *
  * Charl P. Botha <http://cpbotha.net>
  */
-static int radeon_do_resume_cp(struct drm_device * dev)
+static int radeon_do_resume_cp(struct drm_device *dev, struct drm_file *file_priv)
 {
         drm_radeon_private_t *dev_priv = dev->dev_private;
 
@@ -1304,7 +1314,7 @@ static int radeon_do_resume_cp(struct drm_device * dev)
         }
 
         radeon_cp_load_microcode(dev_priv);
-        radeon_cp_init_ring_buffer(dev, dev_priv);
+        radeon_cp_init_ring_buffer(dev, dev_priv, file_priv);
 
         radeon_do_engine_reset(dev);
         radeon_irq_set_state(dev, RADEON_SW_INT_ENABLE, 1);
@@ -1479,8 +1489,7 @@ int radeon_cp_idle(struct drm_device *dev, void *data, struct drm_file *file_pri
  */
 int radeon_cp_resume(struct drm_device *dev, void *data, struct drm_file *file_priv)
 {
-
-        return radeon_do_resume_cp(dev);
+        return radeon_do_resume_cp(dev, file_priv);
 }
 
 int radeon_engine_reset(struct drm_device *dev, void *data, struct drm_file *file_priv)