1 files changed, 25 insertions, 31 deletions

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 3849ded354e3..05b41045b8f9 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -49,6 +49,7 @@ static int i915_capabilities(struct seq_file *m, void *data)
 
 	intel_device_info_dump_flags(info, &p);
 	intel_device_info_dump_runtime(info, &p);
+	intel_driver_caps_print(&dev_priv->caps, &p);
 
 	kernel_param_lock(THIS_MODULE);
 	i915_params_dump(&i915_modparams, &p);
@@ -149,8 +150,8 @@ describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
 		   get_global_flag(obj),
 		   get_pin_mapped_flag(obj),
 		   obj->base.size / 1024,
-		   obj->base.read_domains,
-		   obj->base.write_domain,
+		   obj->read_domains,
+		   obj->write_domain,
 		   i915_cache_level_str(dev_priv, obj->cache_level),
 		   obj->mm.dirty ? " dirty" : "",
 		   obj->mm.madv == I915_MADV_DONTNEED ? " purgeable" : "");
@@ -1460,19 +1461,6 @@ static int gen6_drpc_info(struct seq_file *m)
 	struct drm_i915_private *dev_priv = node_to_i915(m->private);
 	u32 gt_core_status, rcctl1, rc6vids = 0;
 	u32 gen9_powergate_enable = 0, gen9_powergate_status = 0;
-	unsigned forcewake_count;
-	int count = 0;
-
-	forcewake_count = READ_ONCE(dev_priv->uncore.fw_domain[FW_DOMAIN_ID_RENDER].wake_count);
-	if (forcewake_count) {
-		seq_puts(m, "RC information inaccurate because somebody "
-			    "holds a forcewake reference \n");
-	} else {
-		/* NB: we cannot use forcewake, else we read the wrong values */
-		while (count++ < 50 && (I915_READ_NOTRACE(FORCEWAKE_ACK) & 1))
-			udelay(10);
-		seq_printf(m, "RC information accurate: %s\n", yesno(count < 51));
-	}
 
 	gt_core_status = I915_READ_FW(GEN6_GT_CORE_STATUS);
 	trace_i915_reg_rw(false, GEN6_GT_CORE_STATUS, gt_core_status, 4, true);
@@ -1483,9 +1471,12 @@ static int gen6_drpc_info(struct seq_file *m)
 		gen9_powergate_status = I915_READ(GEN9_PWRGT_DOMAIN_STATUS);
 	}
 
-	mutex_lock(&dev_priv->pcu_lock);
-	sandybridge_pcode_read(dev_priv, GEN6_PCODE_READ_RC6VIDS, &rc6vids);
-	mutex_unlock(&dev_priv->pcu_lock);
+	if (INTEL_GEN(dev_priv) <= 7) {
+		mutex_lock(&dev_priv->pcu_lock);
+		sandybridge_pcode_read(dev_priv, GEN6_PCODE_READ_RC6VIDS,
+				       &rc6vids);
+		mutex_unlock(&dev_priv->pcu_lock);
+	}
 
 	seq_printf(m, "RC1e Enabled: %s\n",
 		   yesno(rcctl1 & GEN6_RC_CTL_RC1e_ENABLE));
@@ -1541,12 +1532,15 @@ static int gen6_drpc_info(struct seq_file *m)
 	print_rc6_res(m, "RC6+ residency since boot:", GEN6_GT_GFX_RC6p);
 	print_rc6_res(m, "RC6++ residency since boot:", GEN6_GT_GFX_RC6pp);
 
-	seq_printf(m, "RC6   voltage: %dmV\n",
-		   GEN6_DECODE_RC6_VID(((rc6vids >> 0) & 0xff)));
-	seq_printf(m, "RC6+  voltage: %dmV\n",
-		   GEN6_DECODE_RC6_VID(((rc6vids >> 8) & 0xff)));
-	seq_printf(m, "RC6++ voltage: %dmV\n",
-		   GEN6_DECODE_RC6_VID(((rc6vids >> 16) & 0xff)));
+	if (INTEL_GEN(dev_priv) <= 7) {
+		seq_printf(m, "RC6   voltage: %dmV\n",
+			   GEN6_DECODE_RC6_VID(((rc6vids >> 0) & 0xff)));
+		seq_printf(m, "RC6+  voltage: %dmV\n",
+			   GEN6_DECODE_RC6_VID(((rc6vids >> 8) & 0xff)));
+		seq_printf(m, "RC6++ voltage: %dmV\n",
+			   GEN6_DECODE_RC6_VID(((rc6vids >> 16) & 0xff)));
+	}
+
 	return i915_forcewake_domains(m, NULL);
 }
 
@@ -1599,7 +1593,7 @@ static int i915_fbc_status(struct seq_file *m, void *unused)
 		seq_printf(m, "FBC disabled: %s\n", fbc->no_fbc_reason);
 
 	if (fbc->work.scheduled)
-		seq_printf(m, "FBC worker scheduled on vblank %u, now %llu\n",
+		seq_printf(m, "FBC worker scheduled on vblank %llu, now %llu\n",
 			   fbc->work.scheduled_vblank,
 			   drm_crtc_vblank_count(&fbc->crtc->base));
 
@@ -2338,7 +2332,6 @@ static int i915_guc_info(struct seq_file *m, void *data)
 		return -ENODEV;
 
 	GEM_BUG_ON(!guc->execbuf_client);
-	GEM_BUG_ON(!guc->preempt_client);
 
 	seq_printf(m, "Doorbell map:\n");
 	seq_printf(m, "\t%*pb\n", GUC_NUM_DOORBELLS, guc->doorbell_bitmap);
@@ -2346,8 +2339,11 @@ static int i915_guc_info(struct seq_file *m, void *data)
 
 	seq_printf(m, "\nGuC execbuf client @ %p:\n", guc->execbuf_client);
 	i915_guc_client_info(m, dev_priv, guc->execbuf_client);
-	seq_printf(m, "\nGuC preempt client @ %p:\n", guc->preempt_client);
-	i915_guc_client_info(m, dev_priv, guc->preempt_client);
+	if (guc->preempt_client) {
+		seq_printf(m, "\nGuC preempt client @ %p:\n",
+			   guc->preempt_client);
+		i915_guc_client_info(m, dev_priv, guc->preempt_client);
+	}
 
 	i915_guc_log_info(m, dev_priv);
 
@@ -4083,10 +4079,8 @@ i915_drop_caches_set(void *data, u64 val)
 	if (val & DROP_IDLE)
 		drain_delayed_work(&dev_priv->gt.idle_work);
 
-	if (val & DROP_FREED) {
-		synchronize_rcu();
+	if (val & DROP_FREED)
 		i915_gem_drain_freed_objects(dev_priv);
-	}
 
 	return ret;
 }