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

* 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (169 commits)
  drivers/gpu/drm/radeon/atom.c: fix warning
  drm/radeon/kms: bump kms version number
  drm/radeon/kms: properly set num banks for fusion asics
  drm/radeon/kms/atom: move dig phy init out of modesetting
  drm/radeon/kms/cayman: fix typo in register mask
  drm/radeon/kms: fix typo in spread spectrum code
  drm/radeon/kms: fix tile_config value reported to userspace on cayman.
  drm/radeon/kms: fix incorrect comparison in cayman setup code.
  drm/radeon/kms: add wait idle ioctl for eg->cayman
  drm/radeon/cayman: setup hdp to invalidate and flush when asked
  drm/radeon/evergreen/btc/fusion: setup hdp to invalidate and flush when asked
  agp/uninorth: Fix lockups with radeon KMS and >1x.
  drm/radeon/kms: the SS_Id field in the LCD table if for LVDS only
  drm/radeon/kms: properly set the CLK_REF bit for DCE3 devices
  drm/radeon/kms: fixup eDP connector handling
  drm/radeon/kms: bail early for eDP in hotplug callback
  drm/radeon/kms: simplify hotplug handler logic
  drm/radeon/kms: rewrite DP handling
  drm/radeon/kms/atom: add support for setting DP panel mode
  drm/radeon/kms: atombios.h updates for DP panel mode
  ...

1 files changed, 123 insertions, 8 deletions

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 87c8e29465e..51c2257b11e 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -106,11 +106,12 @@ static const char *get_tiling_flag(struct drm_i915_gem_object *obj)
     }
 }
 
-static const char *agp_type_str(int type)
+static const char *cache_level_str(int type)
 {
 	switch (type) {
-	case 0: return " uncached";
-	case 1: return " snooped";
+	case I915_CACHE_NONE: return " uncached";
+	case I915_CACHE_LLC: return " snooped (LLC)";
+	case I915_CACHE_LLC_MLC: return " snooped (LLC+MLC)";
 	default: return "";
 	}
 }
@@ -127,7 +128,7 @@ describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
 		   obj->base.write_domain,
 		   obj->last_rendering_seqno,
 		   obj->last_fenced_seqno,
-		   agp_type_str(obj->agp_type == AGP_USER_CACHED_MEMORY),
+		   cache_level_str(obj->cache_level),
 		   obj->dirty ? " dirty" : "",
 		   obj->madv == I915_MADV_DONTNEED ? " purgeable" : "");
 	if (obj->base.name)
@@ -714,7 +715,7 @@ static void print_error_buffers(struct seq_file *m,
 			   dirty_flag(err->dirty),
 			   purgeable_flag(err->purgeable),
 			   ring_str(err->ring),
-			   agp_type_str(err->agp_type));
+			   cache_level_str(err->cache_level));
 
 		if (err->name)
 			seq_printf(m, " (name: %d)", err->name);
@@ -852,6 +853,7 @@ static int i915_cur_delayinfo(struct seq_file *m, void *unused)
 	struct drm_info_node *node = (struct drm_info_node *) m->private;
 	struct drm_device *dev = node->minor->dev;
 	drm_i915_private_t *dev_priv = dev->dev_private;
+	int ret;
 
 	if (IS_GEN5(dev)) {
 		u16 rgvswctl = I915_READ16(MEMSWCTL);
@@ -873,7 +875,11 @@ static int i915_cur_delayinfo(struct seq_file *m, void *unused)
 		int max_freq;
 
 		/* RPSTAT1 is in the GT power well */
-		__gen6_gt_force_wake_get(dev_priv);
+		ret = mutex_lock_interruptible(&dev->struct_mutex);
+		if (ret)
+			return ret;
+
+		gen6_gt_force_wake_get(dev_priv);
 
 		rpstat = I915_READ(GEN6_RPSTAT1);
 		rpupei = I915_READ(GEN6_RP_CUR_UP_EI);
@@ -883,6 +889,9 @@ static int i915_cur_delayinfo(struct seq_file *m, void *unused)
 		rpcurdown = I915_READ(GEN6_RP_CUR_DOWN);
 		rpprevdown = I915_READ(GEN6_RP_PREV_DOWN);
 
+		gen6_gt_force_wake_put(dev_priv);
+		mutex_unlock(&dev->struct_mutex);
+
 		seq_printf(m, "GT_PERF_STATUS: 0x%08x\n", gt_perf_status);
 		seq_printf(m, "RPSTAT1: 0x%08x\n", rpstat);
 		seq_printf(m, "Render p-state ratio: %d\n",
@@ -917,8 +926,6 @@ static int i915_cur_delayinfo(struct seq_file *m, void *unused)
 		max_freq = rp_state_cap & 0xff;
 		seq_printf(m, "Max non-overclocked (RP0) frequency: %dMHz\n",
 			   max_freq * 50);
-
-		__gen6_gt_force_wake_put(dev_priv);
 	} else {
 		seq_printf(m, "no P-state info available\n");
 	}
@@ -1058,6 +1065,9 @@ static int i915_fbc_status(struct seq_file *m, void *unused)
 		case FBC_MULTIPLE_PIPES:
 			seq_printf(m, "multiple pipes are enabled");
 			break;
+		case FBC_MODULE_PARAM:
+			seq_printf(m, "disabled per module param (default off)");
+			break;
 		default:
 			seq_printf(m, "unknown reason");
 		}
@@ -1186,6 +1196,42 @@ static int i915_gem_framebuffer_info(struct seq_file *m, void *data)
 	return 0;
 }
 
+static int i915_context_status(struct seq_file *m, void *unused)
+{
+	struct drm_info_node *node = (struct drm_info_node *) m->private;
+	struct drm_device *dev = node->minor->dev;
+	drm_i915_private_t *dev_priv = dev->dev_private;
+	int ret;
+
+	ret = mutex_lock_interruptible(&dev->mode_config.mutex);
+	if (ret)
+		return ret;
+
+	seq_printf(m, "power context ");
+	describe_obj(m, dev_priv->pwrctx);
+	seq_printf(m, "\n");
+
+	seq_printf(m, "render context ");
+	describe_obj(m, dev_priv->renderctx);
+	seq_printf(m, "\n");
+
+	mutex_unlock(&dev->mode_config.mutex);
+
+	return 0;
+}
+
+static int i915_gen6_forcewake_count_info(struct seq_file *m, void *data)
+{
+	struct drm_info_node *node = (struct drm_info_node *) m->private;
+	struct drm_device *dev = node->minor->dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+
+	seq_printf(m, "forcewake count = %d\n",
+		   atomic_read(&dev_priv->forcewake_count));
+
+	return 0;
+}
+
 static int
 i915_wedged_open(struct inode *inode,
 		 struct file *filp)
@@ -1288,6 +1334,67 @@ static int i915_wedged_create(struct dentry *root, struct drm_minor *minor)
 	return drm_add_fake_info_node(minor, ent, &i915_wedged_fops);
 }
 
+static int i915_forcewake_open(struct inode *inode, struct file *file)
+{
+	struct drm_device *dev = inode->i_private;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	int ret;
+
+	if (!IS_GEN6(dev))
+		return 0;
+
+	ret = mutex_lock_interruptible(&dev->struct_mutex);
+	if (ret)
+		return ret;
+	gen6_gt_force_wake_get(dev_priv);
+	mutex_unlock(&dev->struct_mutex);
+
+	return 0;
+}
+
+int i915_forcewake_release(struct inode *inode, struct file *file)
+{
+	struct drm_device *dev = inode->i_private;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+
+	if (!IS_GEN6(dev))
+		return 0;
+
+	/*
+	 * It's bad that we can potentially hang userspace if struct_mutex gets
+	 * forever stuck.  However, if we cannot acquire this lock it means that
+	 * almost certainly the driver has hung, is not unload-able. Therefore
+	 * hanging here is probably a minor inconvenience not to be seen my
+	 * almost every user.
+	 */
+	mutex_lock(&dev->struct_mutex);
+	gen6_gt_force_wake_put(dev_priv);
+	mutex_unlock(&dev->struct_mutex);
+
+	return 0;
+}
+
+static const struct file_operations i915_forcewake_fops = {
+	.owner = THIS_MODULE,
+	.open = i915_forcewake_open,
+	.release = i915_forcewake_release,
+};
+
+static int i915_forcewake_create(struct dentry *root, struct drm_minor *minor)
+{
+	struct drm_device *dev = minor->dev;
+	struct dentry *ent;
+
+	ent = debugfs_create_file("i915_forcewake_user",
+				  S_IRUSR,
+				  root, dev,
+				  &i915_forcewake_fops);
+	if (IS_ERR(ent))
+		return PTR_ERR(ent);
+
+	return drm_add_fake_info_node(minor, ent, &i915_forcewake_fops);
+}
+
 static struct drm_info_list i915_debugfs_list[] = {
 	{"i915_capabilities", i915_capabilities, 0},
 	{"i915_gem_objects", i915_gem_object_info, 0},
@@ -1324,6 +1431,8 @@ static struct drm_info_list i915_debugfs_list[] = {
 	{"i915_sr_status", i915_sr_status, 0},
 	{"i915_opregion", i915_opregion, 0},
 	{"i915_gem_framebuffer", i915_gem_framebuffer_info, 0},
+	{"i915_context_status", i915_context_status, 0},
+	{"i915_gen6_forcewake_count", i915_gen6_forcewake_count_info, 0},
 };
 #define I915_DEBUGFS_ENTRIES ARRAY_SIZE(i915_debugfs_list)
 
@@ -1335,6 +1444,10 @@ int i915_debugfs_init(struct drm_minor *minor)
 	if (ret)
 		return ret;
 
+	ret = i915_forcewake_create(minor->debugfs_root, minor);
+	if (ret)
+		return ret;
+
 	return drm_debugfs_create_files(i915_debugfs_list,
 					I915_DEBUGFS_ENTRIES,
 					minor->debugfs_root, minor);
@@ -1344,6 +1457,8 @@ void i915_debugfs_cleanup(struct drm_minor *minor)
 {
 	drm_debugfs_remove_files(i915_debugfs_list,
 				 I915_DEBUGFS_ENTRIES, minor);
+	drm_debugfs_remove_files((struct drm_info_list *) &i915_forcewake_fops,
+				 1, minor);
 	drm_debugfs_remove_files((struct drm_info_list *) &i915_wedged_fops,
 				 1, minor);
 }