Merge tag 'drm-intel-next-fixes-2015-04-15' of git://anongit.freedesktop.org/drm-intel into drm-next

Misc i915 fixes.

* tag 'drm-intel-next-fixes-2015-04-15' of git://anongit.freedesktop.org/drm-intel:
  drm/i915: Dont enable CS_PARSER_ERROR interrupts at all
  drm/i915: Move drm_framebuffer_unreference out of struct_mutex for takeover
  drm/i915: Allocate connector state together with the connectors
  drm/i915/chv: Remove DPIO force latency causing interpair skew issue
  drm/i915: Don't cancel DRRS worker synchronously for flush/invalidate
  drm/i915: Fix locking in DRRS flush/invalidate hooks

13 files changed, 91 insertions, 77 deletions

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 14ecb4d13a1a..6d494432b19f 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -3598,14 +3598,12 @@ static int i8xx_irq_postinstall(struct drm_device *dev)
                 ~(I915_DISPLAY_PIPE_A_EVENT_INTERRUPT |
                   I915_DISPLAY_PIPE_B_EVENT_INTERRUPT |
                   I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT |
-                  I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT |
-                  I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT);
+                  I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT);
         I915_WRITE16(IMR, dev_priv->irq_mask);
 
         I915_WRITE16(IER,
                      I915_DISPLAY_PIPE_A_EVENT_INTERRUPT |
                      I915_DISPLAY_PIPE_B_EVENT_INTERRUPT |
-                     I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT |
                      I915_USER_INTERRUPT);
         POSTING_READ16(IER);
 
@@ -3767,14 +3765,12 @@ static int i915_irq_postinstall(struct drm_device *dev)
                   I915_DISPLAY_PIPE_A_EVENT_INTERRUPT |
                   I915_DISPLAY_PIPE_B_EVENT_INTERRUPT |
                   I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT |
-                  I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT |
-                  I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT);
+                  I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT);
 
         enable_mask =
                 I915_ASLE_INTERRUPT |
                 I915_DISPLAY_PIPE_A_EVENT_INTERRUPT |
                 I915_DISPLAY_PIPE_B_EVENT_INTERRUPT |
-                I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT |
                 I915_USER_INTERRUPT;
 
         if (I915_HAS_HOTPLUG(dev)) {
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index 6095a998bdac..515d7123785d 100644
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -851,7 +851,7 @@ void intel_crt_init(struct drm_device *dev)
         if (!crt)
                 return;
 
-        intel_connector = kzalloc(sizeof(*intel_connector), GFP_KERNEL);
+        intel_connector = intel_connector_alloc();
         if (!intel_connector) {
                 kfree(crt);
                 return;
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 47b9307da24b..3eb0efc2dd0d 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -2200,7 +2200,7 @@ intel_ddi_init_dp_connector(struct intel_digital_port *intel_dig_port)
         struct intel_connector *connector;
         enum port port = intel_dig_port->port;
 
-        connector = kzalloc(sizeof(*connector), GFP_KERNEL);
+        connector = intel_connector_alloc();
         if (!connector)
                 return NULL;
 
@@ -2219,7 +2219,7 @@ intel_ddi_init_hdmi_connector(struct intel_digital_port *intel_dig_port)
         struct intel_connector *connector;
         enum port port = intel_dig_port->port;
 
-        connector = kzalloc(sizeof(*connector), GFP_KERNEL);
+        connector = intel_connector_alloc();
         if (!connector)
                 return NULL;
 
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 75955fee6d24..d547d9c8dda2 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -5636,6 +5636,34 @@ static void intel_connector_check_state(struct intel_connector *connector)
         }
 }
 
+int intel_connector_init(struct intel_connector *connector)
+{
+        struct drm_connector_state *connector_state;
+
+        connector_state = kzalloc(sizeof *connector_state, GFP_KERNEL);
+        if (!connector_state)
+                return -ENOMEM;
+
+        connector->base.state = connector_state;
+        return 0;
+}
+
+struct intel_connector *intel_connector_alloc(void)
+{
+        struct intel_connector *connector;
+
+        connector = kzalloc(sizeof *connector, GFP_KERNEL);
+        if (!connector)
+                return NULL;
+
+        if (intel_connector_init(connector) < 0) {
+                kfree(connector);
+                return NULL;
+        }
+
+        return connector;
+}
+
 /* Even simpler default implementation, if there's really no special case to
  * consider. */
 void intel_connector_dpms(struct drm_connector *connector, int mode)
@@ -13003,7 +13031,6 @@ static void intel_setup_outputs(struct drm_device *dev)
 {
         struct drm_i915_private *dev_priv = dev->dev_private;
         struct intel_encoder *encoder;
-        struct drm_connector *connector;
         bool dpd_is_edp = false;
 
         intel_lvds_init(dev);
@@ -13139,39 +13166,6 @@ static void intel_setup_outputs(struct drm_device *dev)
         if (SUPPORTS_TV(dev))
                 intel_tv_init(dev);
 
-        /*
-         * FIXME:  We don't have full atomic support yet, but we want to be
-         * able to enable/test plane updates via the atomic interface in the
-         * meantime.  However as soon as we flip DRIVER_ATOMIC on, the DRM core
-         * will take some atomic codepaths to lookup properties during
-         * drmModeGetConnector() that unconditionally dereference
-         * connector->state.
-         *
-         * We create a dummy connector state here for each connector to ensure
-         * the DRM core doesn't try to dereference a NULL connector->state.
-         * The actual connector properties will never be updated or contain
-         * useful information, but since we're doing this specifically for
-         * testing/debug of the plane operations (and only when a specific
-         * kernel module option is given), that shouldn't really matter.
-         *
-         * We are also relying on these states to convert the legacy mode set
-         * to use a drm_atomic_state struct. The states are kept consistent
-         * with actual state, so that it is safe to rely on that instead of
-         * the staged config.
-         *
-         * Once atomic support for crtc's + connectors lands, this loop should
-         * be removed since we'll be setting up real connector state, which
-         * will contain Intel-specific properties.
-         */
-        list_for_each_entry(connector,
-                            &dev->mode_config.connector_list,
-                            head) {
-                if (!WARN_ON(connector->state)) {
-                        connector->state = kzalloc(sizeof(*connector->state),
-                                                   GFP_KERNEL);
-                }
-        }
-
         intel_psr_init(dev);
 
         for_each_intel_encoder(dev, encoder) {
@@ -14265,6 +14259,7 @@ void intel_modeset_gem_init(struct drm_device *dev)
         struct drm_i915_private *dev_priv = dev->dev_private;
         struct drm_crtc *c;
         struct drm_i915_gem_object *obj;
+        int ret;
 
         mutex_lock(&dev->struct_mutex);
         intel_init_gt_powersave(dev);
@@ -14289,16 +14284,18 @@ void intel_modeset_gem_init(struct drm_device *dev)
          * pinned & fenced.  When we do the allocation it's too early
          * for this.
          */
-        mutex_lock(&dev->struct_mutex);
         for_each_crtc(dev, c) {
                 obj = intel_fb_obj(c->primary->fb);
                 if (obj == NULL)
                         continue;
 
-                if (intel_pin_and_fence_fb_obj(c->primary,
-                                               c->primary->fb,
-                                               c->primary->state,
-                                               NULL)) {
+                mutex_lock(&dev->struct_mutex);
+                ret = intel_pin_and_fence_fb_obj(c->primary,
+                                                 c->primary->fb,
+                                                 c->primary->state,
+                                                 NULL);
+                mutex_unlock(&dev->struct_mutex);
+                if (ret) {
                         DRM_ERROR("failed to pin boot fb on pipe %d\n",
                                   to_intel_crtc(c)->pipe);
                         drm_framebuffer_unreference(c->primary->fb);
@@ -14306,7 +14303,6 @@ void intel_modeset_gem_init(struct drm_device *dev)
                         update_state_fb(c->primary);
                 }
         }
-        mutex_unlock(&dev->struct_mutex);
 
         intel_backlight_register(dev);
 }
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index b70e635ccaf4..d0237102c27e 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -2742,11 +2742,6 @@ static void chv_pre_enable_dp(struct intel_encoder *encoder)
 
         /* Program Tx lane latency optimal setting*/
         for (i = 0; i < 4; i++) {
-                /* Set the latency optimal bit */
-                data = (i == 1) ? 0x0 : 0x6;
-                vlv_dpio_write(dev_priv, pipe, CHV_TX_DW11(ch, i),
-                                data << DPIO_FRC_LATENCY_SHFIT);
-
                 /* Set the upar bit */
                 data = (i == 1) ? 0x0 : 0x1;
                 vlv_dpio_write(dev_priv, pipe, CHV_TX_DW14(ch, i),
@@ -5157,7 +5152,6 @@ static void intel_edp_drrs_downclock_work(struct work_struct *work)
                         downclock_mode->vrefresh);
 
 unlock:
-
         mutex_unlock(&dev_priv->drrs.mutex);
 }
 
@@ -5179,12 +5173,17 @@ void intel_edp_drrs_invalidate(struct drm_device *dev,
         struct drm_crtc *crtc;
         enum pipe pipe;
 
-        if (!dev_priv->drrs.dp)
+        if (dev_priv->drrs.type == DRRS_NOT_SUPPORTED)
                 return;
 
-        cancel_delayed_work_sync(&dev_priv->drrs.work);
+        cancel_delayed_work(&dev_priv->drrs.work);
 
         mutex_lock(&dev_priv->drrs.mutex);
+        if (!dev_priv->drrs.dp) {
+                mutex_unlock(&dev_priv->drrs.mutex);
+                return;
+        }
+
         crtc = dp_to_dig_port(dev_priv->drrs.dp)->base.base.crtc;
         pipe = to_intel_crtc(crtc)->pipe;
 
@@ -5218,12 +5217,17 @@ void intel_edp_drrs_flush(struct drm_device *dev,
         struct drm_crtc *crtc;
         enum pipe pipe;
 
-        if (!dev_priv->drrs.dp)
+        if (dev_priv->drrs.type == DRRS_NOT_SUPPORTED)
                 return;
 
-        cancel_delayed_work_sync(&dev_priv->drrs.work);
+        cancel_delayed_work(&dev_priv->drrs.work);
 
         mutex_lock(&dev_priv->drrs.mutex);
+        if (!dev_priv->drrs.dp) {
+                mutex_unlock(&dev_priv->drrs.mutex);
+                return;
+        }
+
         crtc = dp_to_dig_port(dev_priv->drrs.dp)->base.base.crtc;
         pipe = to_intel_crtc(crtc)->pipe;
         dev_priv->drrs.busy_frontbuffer_bits &= ~frontbuffer_bits;
@@ -5294,6 +5298,9 @@ intel_dp_drrs_init(struct intel_connector *intel_connector,
         struct drm_i915_private *dev_priv = dev->dev_private;
         struct drm_display_mode *downclock_mode = NULL;
 
+        INIT_DELAYED_WORK(&dev_priv->drrs.work, intel_edp_drrs_downclock_work);
+        mutex_init(&dev_priv->drrs.mutex);
+
         if (INTEL_INFO(dev)->gen <= 6) {
                 DRM_DEBUG_KMS("DRRS supported for Gen7 and above\n");
                 return NULL;
@@ -5312,10 +5319,6 @@ intel_dp_drrs_init(struct intel_connector *intel_connector,
                 return NULL;
         }
 
-        INIT_DELAYED_WORK(&dev_priv->drrs.work, intel_edp_drrs_downclock_work);
-
-        mutex_init(&dev_priv->drrs.mutex);
-
         dev_priv->drrs.type = dev_priv->vbt.drrs_type;
 
         dev_priv->drrs.refresh_rate_type = DRRS_HIGH_RR;
@@ -5587,7 +5590,7 @@ intel_dp_init(struct drm_device *dev, int output_reg, enum port port)
         if (!intel_dig_port)
                 return;
 
-        intel_connector = kzalloc(sizeof(*intel_connector), GFP_KERNEL);
+        intel_connector = intel_connector_alloc();
         if (!intel_connector) {
                 kfree(intel_dig_port);
                 return;
diff --git a/drivers/gpu/drm/i915/intel_dp_mst.c b/drivers/gpu/drm/i915/intel_dp_mst.c
index 5329c855acce..5cb47482d29f 100644
--- a/drivers/gpu/drm/i915/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/intel_dp_mst.c
@@ -415,7 +415,7 @@ static struct drm_connector *intel_dp_add_mst_connector(struct drm_dp_mst_topolo
         struct drm_connector *connector;
         int i;
 
-        intel_connector = kzalloc(sizeof(*intel_connector), GFP_KERNEL);
+        intel_connector = intel_connector_alloc();
         if (!intel_connector)
                 return NULL;
 
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 6036e3b73b7b..744db4d0c68f 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -930,6 +930,8 @@ void intel_crtc_restore_mode(struct drm_crtc *crtc);
 void intel_crtc_control(struct drm_crtc *crtc, bool enable);
 void intel_crtc_update_dpms(struct drm_crtc *crtc);
 void intel_encoder_destroy(struct drm_encoder *encoder);
+int intel_connector_init(struct intel_connector *);
+struct intel_connector *intel_connector_alloc(void);
 void intel_connector_dpms(struct drm_connector *, int mode);
 bool intel_connector_get_hw_state(struct intel_connector *connector);
 void intel_modeset_check_state(struct drm_device *dev);
diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c
index 572251e9810b..51966426addf 100644
--- a/drivers/gpu/drm/i915/intel_dsi.c
+++ b/drivers/gpu/drm/i915/intel_dsi.c
@@ -1007,7 +1007,7 @@ void intel_dsi_init(struct drm_device *dev)
         if (!intel_dsi)
                 return;
 
-        intel_connector = kzalloc(sizeof(*intel_connector), GFP_KERNEL);
+        intel_connector = intel_connector_alloc();
         if (!intel_connector) {
                 kfree(intel_dsi);
                 return;
diff --git a/drivers/gpu/drm/i915/intel_dvo.c b/drivers/gpu/drm/i915/intel_dvo.c
index 4ccd6c3f133d..770040ff486e 100644
--- a/drivers/gpu/drm/i915/intel_dvo.c
+++ b/drivers/gpu/drm/i915/intel_dvo.c
@@ -469,7 +469,7 @@ void intel_dvo_init(struct drm_device *dev)
         if (!intel_dvo)
                 return;
 
-        intel_connector = kzalloc(sizeof(*intel_connector), GFP_KERNEL);
+        intel_connector = intel_connector_alloc();
         if (!intel_connector) {
                 kfree(intel_dvo);
                 return;
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index cacbafdad3ab..bfbe07b6ddce 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -1515,11 +1515,6 @@ static void chv_hdmi_pre_enable(struct intel_encoder *encoder)
 
         /* Program Tx latency optimal setting */
         for (i = 0; i < 4; i++) {
-                /* Set the latency optimal bit */
-                data = (i == 1) ? 0x0 : 0x6;
-                vlv_dpio_write(dev_priv, pipe, CHV_TX_DW11(ch, i),
-                                data << DPIO_FRC_LATENCY_SHFIT);
-
                 /* Set the upar bit */
                 data = (i == 1) ? 0x0 : 0x1;
                 vlv_dpio_write(dev_priv, pipe, CHV_TX_DW14(ch, i),
@@ -1755,7 +1750,7 @@ void intel_hdmi_init(struct drm_device *dev, int hdmi_reg, enum port port)
         if (!intel_dig_port)
                 return;
 
-        intel_connector = kzalloc(sizeof(*intel_connector), GFP_KERNEL);
+        intel_connector = intel_connector_alloc();
         if (!intel_connector) {
                 kfree(intel_dig_port);
                 return;
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index 06d2da336f7c..5abda1d2c018 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -946,6 +946,12 @@ void intel_lvds_init(struct drm_device *dev)
                 return;
         }
 
+        if (intel_connector_init(&lvds_connector->base) < 0) {
+                kfree(lvds_connector);
+                kfree(lvds_encoder);
+                return;
+        }
+
         lvds_encoder->attached_connector = lvds_connector;
 
         intel_encoder = &lvds_encoder->base;
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index f5b7e1e7c5e0..e87d2f418de4 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -2426,6 +2426,22 @@ intel_sdvo_add_hdmi_properties(struct intel_sdvo *intel_sdvo,
         }
 }
 
+static struct intel_sdvo_connector *intel_sdvo_connector_alloc(void)
+{
+        struct intel_sdvo_connector *sdvo_connector;
+
+        sdvo_connector = kzalloc(sizeof(*sdvo_connector), GFP_KERNEL);
+        if (!sdvo_connector)
+                return NULL;
+
+        if (intel_connector_init(&sdvo_connector->base) < 0) {
+                kfree(sdvo_connector);
+                return NULL;
+        }
+
+        return sdvo_connector;
+}
+
 static bool
 intel_sdvo_dvi_init(struct intel_sdvo *intel_sdvo, int device)
 {
@@ -2437,7 +2453,7 @@ intel_sdvo_dvi_init(struct intel_sdvo *intel_sdvo, int device)
 
         DRM_DEBUG_KMS("initialising DVI device %d\n", device);
 
-        intel_sdvo_connector = kzalloc(sizeof(*intel_sdvo_connector), GFP_KERNEL);
+        intel_sdvo_connector = intel_sdvo_connector_alloc();
         if (!intel_sdvo_connector)
                 return false;
 
@@ -2491,7 +2507,7 @@ intel_sdvo_tv_init(struct intel_sdvo *intel_sdvo, int type)
 
         DRM_DEBUG_KMS("initialising TV type %d\n", type);
 
-        intel_sdvo_connector = kzalloc(sizeof(*intel_sdvo_connector), GFP_KERNEL);
+        intel_sdvo_connector = intel_sdvo_connector_alloc();
         if (!intel_sdvo_connector)
                 return false;
 
@@ -2570,7 +2586,7 @@ intel_sdvo_lvds_init(struct intel_sdvo *intel_sdvo, int device)
 
         DRM_DEBUG_KMS("initialising LVDS device %d\n", device);
 
-        intel_sdvo_connector = kzalloc(sizeof(*intel_sdvo_connector), GFP_KERNEL);
+        intel_sdvo_connector = intel_sdvo_connector_alloc();
         if (!intel_sdvo_connector)
                 return false;
 
diff --git a/drivers/gpu/drm/i915/intel_tv.c b/drivers/gpu/drm/i915/intel_tv.c
index bc1d9d740904..8b9d325bda3c 100644
--- a/drivers/gpu/drm/i915/intel_tv.c
+++ b/drivers/gpu/drm/i915/intel_tv.c
@@ -1621,7 +1621,7 @@ intel_tv_init(struct drm_device *dev)
                 return;
         }
 
-        intel_connector = kzalloc(sizeof(*intel_connector), GFP_KERNEL);
+        intel_connector = intel_connector_alloc();
         if (!intel_connector) {
                 kfree(intel_tv);
                 return;