Merge tag 'drm-intel-next-2015-10-10' of git://anongit.freedesktop.org/drm-intel into drm-next

- dmc fixes from Animesh (not yet all) for deeper sleep states
- piles of prep patches from Ville to make mmio functions type-safe
- more fbc work from Paulo all over
- w/a shuffling from Arun Siluvery
- first part of atomic watermark updates from Matt and Ville (later parts had to
  be dropped again unfortunately)
- lots of patches to prepare bxt dsi support ( Shashank Sharma)
- userptr fixes from Chris
- audio rate interface between i915/snd_hda plus kerneldoc (Libin Yang)
- shrinker improvements and fixes (Chris Wilson)
- lots and lots of small patches all over

* tag 'drm-intel-next-2015-10-10' of git://anongit.freedesktop.org/drm-intel: (134 commits)
  drm/i915: Update DRIVER_DATE to 20151010
  drm/i915: Partial revert of atomic watermark series
  drm/i915: Early exit from semaphore_waits_for for execlist mode.
  drm/i915: Remove wrong warning from i915_gem_context_clean
  drm/i915: Determine the stolen memory base address on gen2
  drm/i915: fix FBC buffer size checks
  drm/i915: fix CFB size calculation
  drm/i915: remove pre-atomic check from SKL update_primary_plane
  drm/i915: don't allocate fbcon from stolen memory if it's too big
  Revert "drm/i915: Call encoder hotplug for init and resume cases"
  Revert "drm/i915: Add hot_plug hook for hdmi encoder"
  drm/i915: use error path
  drm/i915/irq: Fix misspelled word register in kernel-doc
  drm/i915/irq: Fix kernel-doc warnings
  drm/i915: Hook up ring workaround writes at context creation time on Gen6-7.
  drm/i915: Don't warn if the workaround list is empty.
  drm/i915: Resurrect golden context on gen6/7
  drm/i915/chv: remove pre-production hardware workarounds
  drm/i915/snb: remove pre-production hardware workaround
  drm/i915/bxt: Set time interval unit to 0.833us
  ...

drivers/gpu/drm/i915/i915_debugfs.c

@@ -253,7 +253,11 @@ static int obj_rank_by_stolen(void *priv,
 	struct drm_i915_gem_object *b =
 		container_of(B, struct drm_i915_gem_object, obj_exec_link);
 
-	return a->stolen->start - b->stolen->start;
+	if (a->stolen->start < b->stolen->start)
+		return -1;
+	if (a->stolen->start > b->stolen->start)
+		return 1;
+	return 0;
 }
 
 static int i915_gem_stolen_list_info(struct seq_file *m, void *data)
@@ -1308,6 +1312,10 @@ static int i915_frequency_info(struct seq_file *m, void *unused)
 		seq_puts(m, "no P-state info available\n");
 	}
 
+	seq_printf(m, "Current CD clock frequency: %d kHz\n", dev_priv->cdclk_freq);
+	seq_printf(m, "Max CD clock frequency: %d kHz\n", dev_priv->max_cdclk_freq);
+	seq_printf(m, "Max pixel clock frequency: %d kHz\n", dev_priv->max_dotclk_freq);
+
 out:
 	intel_runtime_pm_put(dev_priv);
 	return ret;
@@ -2230,10 +2238,9 @@ static void gen8_ppgtt_info(struct seq_file *m, struct drm_device *dev)
 	for_each_ring(ring, dev_priv, unused) {
 		seq_printf(m, "%s\n", ring->name);
 		for (i = 0; i < 4; i++) {
-			u32 offset = 0x270 + i * 8;
-			u64 pdp = I915_READ(ring->mmio_base + offset + 4);
+			u64 pdp = I915_READ(GEN8_RING_PDP_UDW(ring, i));
 			pdp <<= 32;
-			pdp |= I915_READ(ring->mmio_base + offset);
+			pdp |= I915_READ(GEN8_RING_PDP_LDW(ring, i));
 			seq_printf(m, "\tPDP%d 0x%016llx\n", i, pdp);
 		}
 	}
@@ -2290,18 +2297,21 @@ static int i915_ppgtt_info(struct seq_file *m, void *data)
 		struct task_struct *task;
 
 		task = get_pid_task(file->pid, PIDTYPE_PID);
-		if (!task)
-			return -ESRCH;
+		if (!task) {
+			ret = -ESRCH;
+			goto out_put;
+		}
 		seq_printf(m, "\nproc: %s\n", task->comm);
 		put_task_struct(task);
 		idr_for_each(&file_priv->context_idr, per_file_ctx,
 			     (void *)(unsigned long)m);
 	}
 
+out_put:
 	intel_runtime_pm_put(dev_priv);
 	mutex_unlock(&dev->struct_mutex);
 
-	return 0;
+	return ret;
 }
 
 static int count_irq_waiters(struct drm_i915_private *i915)
@@ -2909,7 +2919,7 @@ static bool cursor_active(struct drm_device *dev, int pipe)
 	u32 state;
 
 	if (IS_845G(dev) || IS_I865G(dev))
-		state = I915_READ(_CURACNTR) & CURSOR_ENABLE;
+		state = I915_READ(CURCNTR(PIPE_A)) & CURSOR_ENABLE;
 	else
 		state = I915_READ(CURCNTR(pipe)) & CURSOR_MODE;
 
@@ -3147,7 +3157,7 @@ static int i915_ddb_info(struct seq_file *m, void *unused)
 				   skl_ddb_entry_size(entry));
 		}
 
-		entry = &ddb->cursor[pipe];
+		entry = &ddb->plane[pipe][PLANE_CURSOR];
 		seq_printf(m, "  %-13s%8u%8u%8u\n", "Cursor", entry->start,
 			   entry->end, skl_ddb_entry_size(entry));
 	}
@@ -5040,13 +5050,38 @@ static void gen9_sseu_device_status(struct drm_device *dev,
 	}
 }
 
+static void broadwell_sseu_device_status(struct drm_device *dev,
+					 struct sseu_dev_status *stat)
+{
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	int s;
+	u32 slice_info = I915_READ(GEN8_GT_SLICE_INFO);
+
+	stat->slice_total = hweight32(slice_info & GEN8_LSLICESTAT_MASK);
+
+	if (stat->slice_total) {
+		stat->subslice_per_slice = INTEL_INFO(dev)->subslice_per_slice;
+		stat->subslice_total = stat->slice_total *
+				       stat->subslice_per_slice;
+		stat->eu_per_subslice = INTEL_INFO(dev)->eu_per_subslice;
+		stat->eu_total = stat->eu_per_subslice * stat->subslice_total;
+
+		/* subtract fused off EU(s) from enabled slice(s) */
+		for (s = 0; s < stat->slice_total; s++) {
+			u8 subslice_7eu = INTEL_INFO(dev)->subslice_7eu[s];
+
+			stat->eu_total -= hweight8(subslice_7eu);
+		}
+	}
+}
+
 static int i915_sseu_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;
 	struct sseu_dev_status stat;
 
-	if ((INTEL_INFO(dev)->gen < 8) || IS_BROADWELL(dev))
+	if (INTEL_INFO(dev)->gen < 8)
 		return -ENODEV;
 
 	seq_puts(m, "SSEU Device Info\n");
@@ -5071,6 +5106,8 @@ static int i915_sseu_status(struct seq_file *m, void *unused)
 	memset(&stat, 0, sizeof(stat));
 	if (IS_CHERRYVIEW(dev)) {
 		cherryview_sseu_device_status(dev, &stat);
+	} else if (IS_BROADWELL(dev)) {
+		broadwell_sseu_device_status(dev, &stat);
 	} else if (INTEL_INFO(dev)->gen >= 9) {
 		gen9_sseu_device_status(dev, &stat);
 	}