Merge tag 'v4.4-rc2' into drm-intel-next-queued

Linux 4.4-rc2

Backmerge to get at

commit 1b0e3a049efe471c399674fd954500ce97438d30
Author: Imre Deak <imre.deak@intel.com>
Date:   Thu Nov 5 23:04:11 2015 +0200

    drm/i915/skl: disable display side power well support for now

so that we can proplery re-eanble skl power wells in -next.

Conflicts are just adjacent lines changed, except for intel_fbdev.c
where we need to interleave the changs. Nothing nefarious.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>

10 files changed, 65 insertions, 93 deletions

diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index d0251ac44a50..0b921ae06cd8 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -107,6 +107,9 @@ struct dma_buf_attachment;
  * ATOMIC: used in the atomic code.
  *	  This is the category used by the DRM_DEBUG_ATOMIC() macro.
  *
+ * VBL: used for verbose debug message in the vblank code
+ *	  This is the category used by the DRM_DEBUG_VBL() macro.
+ *
  * Enabling verbose debug messages is done through the drm.debug parameter,
  * each category being enabled by a bit.
  *
@@ -114,7 +117,7 @@ struct dma_buf_attachment;
  * drm.debug=0x2 will enable DRIVER messages
  * drm.debug=0x3 will enable CORE and DRIVER messages
  * ...
- * drm.debug=0xf will enable all messages
+ * drm.debug=0x3f will enable all messages
  *
  * An interesting feature is that it's possible to enable verbose logging at
  * run-time by echoing the debug value in its sysfs node:
@@ -125,6 +128,7 @@ struct dma_buf_attachment;
 #define DRM_UT_KMS		0x04
 #define DRM_UT_PRIME		0x08
 #define DRM_UT_ATOMIC		0x10
+#define DRM_UT_VBL		0x20
 
 extern __printf(2, 3)
 void drm_ut_debug_printk(const char *function_name,
@@ -217,6 +221,11 @@ void drm_err(const char *format, ...);
 		if (unlikely(drm_debug & DRM_UT_ATOMIC))		\
 			drm_ut_debug_printk(__func__, fmt, ##args);	\
 	} while (0)
+#define DRM_DEBUG_VBL(fmt, args...)					\
+	do {								\
+		if (unlikely(drm_debug & DRM_UT_VBL))			\
+			drm_ut_debug_printk(__func__, fmt, ##args);	\
+	} while (0)
 
 /*@}*/
 
@@ -412,7 +421,7 @@ struct drm_driver {
 	/**
 	 * get_vblank_counter - get raw hardware vblank counter
 	 * @dev: DRM device
-	 * @crtc: counter to fetch
+	 * @pipe: counter to fetch
 	 *
 	 * Driver callback for fetching a raw hardware vblank counter for @crtc.
 	 * If a device doesn't have a hardware counter, the driver can simply
@@ -426,12 +435,12 @@ struct drm_driver {
 	 * RETURNS
 	 * Raw vblank counter value.
 	 */
-	u32 (*get_vblank_counter) (struct drm_device *dev, int crtc);
+	u32 (*get_vblank_counter) (struct drm_device *dev, unsigned int pipe);
 
 	/**
 	 * enable_vblank - enable vblank interrupt events
 	 * @dev: DRM device
-	 * @crtc: which irq to enable
+	 * @pipe: which irq to enable
 	 *
 	 * Enable vblank interrupts for @crtc.  If the device doesn't have
 	 * a hardware vblank counter, this routine should be a no-op, since
@@ -441,18 +450,18 @@ struct drm_driver {
 	 * Zero on success, appropriate errno if the given @crtc's vblank
 	 * interrupt cannot be enabled.
 	 */
-	int (*enable_vblank) (struct drm_device *dev, int crtc);
+	int (*enable_vblank) (struct drm_device *dev, unsigned int pipe);
 
 	/**
 	 * disable_vblank - disable vblank interrupt events
 	 * @dev: DRM device
-	 * @crtc: which irq to enable
+	 * @pipe: which irq to enable
 	 *
 	 * Disable vblank interrupts for @crtc.  If the device doesn't have
 	 * a hardware vblank counter, this routine should be a no-op, since
 	 * interrupts will have to stay on to keep the count accurate.
 	 */
-	void (*disable_vblank) (struct drm_device *dev, int crtc);
+	void (*disable_vblank) (struct drm_device *dev, unsigned int pipe);
 
 	/**
 	 * Called by \c drm_device_is_agp.  Typically used to determine if a
@@ -474,7 +483,7 @@ struct drm_driver {
 	 * optional accurate ktime_get timestamp of when position was measured.
 	 *
 	 * \param dev  DRM device.
-	 * \param crtc Id of the crtc to query.
+	 * \param pipe Id of the crtc to query.
 	 * \param flags Flags from the caller (DRM_CALLED_FROM_VBLIRQ or 0).
 	 * \param *vpos Target location for current vertical scanout position.
 	 * \param *hpos Target location for current horizontal scanout position.
@@ -498,9 +507,8 @@ struct drm_driver {
 	 * but unknown small number of scanlines wrt. real scanout position.
 	 *
 	 */
-	int (*get_scanout_position) (struct drm_device *dev, int crtc,
-				     unsigned int flags,
-				     int *vpos, int *hpos,
+	int (*get_scanout_position) (struct drm_device *dev, unsigned int pipe,
+				     unsigned int flags, int *vpos, int *hpos,
 				     ktime_t *stime, ktime_t *etime,
 				     const struct drm_display_mode *mode);
 
@@ -518,7 +526,7 @@ struct drm_driver {
 	 * to the OpenML OML_sync_control extension specification.
 	 *
 	 * \param dev dev DRM device handle.
-	 * \param crtc crtc for which timestamp should be returned.
+	 * \param pipe crtc for which timestamp should be returned.
 	 * \param *max_error Maximum allowable timestamp error in nanoseconds.
 	 *                   Implementation should strive to provide timestamp
 	 *                   with an error of at most *max_error nanoseconds.
@@ -534,7 +542,7 @@ struct drm_driver {
 	 * negative number on failure. A positive status code on success,
 	 * which describes how the vblank_time timestamp was computed.
 	 */
-	int (*get_vblank_timestamp) (struct drm_device *dev, int crtc,
+	int (*get_vblank_timestamp) (struct drm_device *dev, unsigned int pipe,
 				     int *max_error,
 				     struct timeval *vblank_time,
 				     unsigned flags);
@@ -826,7 +834,6 @@ struct drm_device {
 
 	struct drm_sg_mem *sg;	/**< Scatter gather memory */
 	unsigned int num_crtcs;                  /**< Number of CRTCs on this device */
-	sigset_t sigmask;
 
 	struct {
 		int context;
@@ -910,6 +917,8 @@ extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
 /* Misc. IOCTL support (drm_ioctl.c) */
 int drm_noop(struct drm_device *dev, void *data,
 	     struct drm_file *file_priv);
+int drm_invalid_op(struct drm_device *dev, void *data,
+		   struct drm_file *file_priv);
 
 /* Cache management (drm_cache.c) */
 void drm_clflush_pages(struct page *pages[], unsigned long num_pages);
@@ -928,7 +937,7 @@ extern int drm_irq_uninstall(struct drm_device *dev);
 extern int drm_vblank_init(struct drm_device *dev, unsigned int num_crtcs);
 extern int drm_wait_vblank(struct drm_device *dev, void *data,
 			   struct drm_file *filp);
-extern u32 drm_vblank_count(struct drm_device *dev, int pipe);
+extern u32 drm_vblank_count(struct drm_device *dev, unsigned int pipe);
 extern u32 drm_crtc_vblank_count(struct drm_crtc *crtc);
 extern u32 drm_vblank_count_and_time(struct drm_device *dev, unsigned int pipe,
 				     struct timeval *vblanktime);
@@ -952,6 +961,7 @@ extern void drm_crtc_vblank_off(struct drm_crtc *crtc);
 extern void drm_crtc_vblank_reset(struct drm_crtc *crtc);
 extern void drm_crtc_vblank_on(struct drm_crtc *crtc);
 extern void drm_vblank_cleanup(struct drm_device *dev);
+extern u32 drm_vblank_no_hw_counter(struct drm_device *dev, unsigned int pipe);
 
 extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev,
 						 unsigned int pipe, int *max_error,
diff --git a/include/drm/drm_agpsupport.h b/include/drm/drm_agpsupport.h
index 055dc058d147..193ef19dfc5c 100644
--- a/include/drm/drm_agpsupport.h
+++ b/include/drm/drm_agpsupport.h
@@ -12,9 +12,6 @@
 struct drm_device;
 struct drm_file;
 
-#define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && \
-					      defined(MODULE)))
-
 struct drm_agp_head {
 	struct agp_kern_info agp_info;
 	struct list_head memory;
@@ -28,7 +25,7 @@ struct drm_agp_head {
 	unsigned long page_mask;
 };
 
-#if __OS_HAS_AGP
+#if IS_ENABLED(CONFIG_AGP)
 
 void drm_free_agp(struct agp_memory * handle, int pages);
 int drm_bind_agp(struct agp_memory * handle, unsigned int start);
@@ -66,7 +63,7 @@ int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
 int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
 		       struct drm_file *file_priv);
 
-#else /* __OS_HAS_AGP */
+#else /* CONFIG_AGP */
 
 static inline void drm_free_agp(struct agp_memory * handle, int pages)
 {
@@ -105,95 +102,47 @@ static inline int drm_agp_acquire(struct drm_device *dev)
 	return -ENODEV;
 }
 
-static inline int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
-					struct drm_file *file_priv)
-{
-	return -ENODEV;
-}
-
 static inline int drm_agp_release(struct drm_device *dev)
 {
 	return -ENODEV;
 }
 
-static inline int drm_agp_release_ioctl(struct drm_device *dev, void *data,
-					struct drm_file *file_priv)
-{
-	return -ENODEV;
-}
-
 static inline int drm_agp_enable(struct drm_device *dev,
 				 struct drm_agp_mode mode)
 {
 	return -ENODEV;
 }
 
-static inline int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
-				       struct drm_file *file_priv)
-{
-	return -ENODEV;
-}
-
 static inline int drm_agp_info(struct drm_device *dev,
 			       struct drm_agp_info *info)
 {
 	return -ENODEV;
 }
 
-static inline int drm_agp_info_ioctl(struct drm_device *dev, void *data,
-				     struct drm_file *file_priv)
-{
-	return -ENODEV;
-}
-
 static inline int drm_agp_alloc(struct drm_device *dev,
 				struct drm_agp_buffer *request)
 {
 	return -ENODEV;
 }
 
-static inline int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
-				      struct drm_file *file_priv)
-{
-	return -ENODEV;
-}
-
 static inline int drm_agp_free(struct drm_device *dev,
 			       struct drm_agp_buffer *request)
 {
 	return -ENODEV;
 }
 
-static inline int drm_agp_free_ioctl(struct drm_device *dev, void *data,
-				     struct drm_file *file_priv)
-{
-	return -ENODEV;
-}
-
 static inline int drm_agp_unbind(struct drm_device *dev,
 				 struct drm_agp_binding *request)
 {
 	return -ENODEV;
 }
 
-static inline int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
-				       struct drm_file *file_priv)
-{
-	return -ENODEV;
-}
-
 static inline int drm_agp_bind(struct drm_device *dev,
 			       struct drm_agp_binding *request)
 {
 	return -ENODEV;
 }
 
-static inline int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
-				     struct drm_file *file_priv)
-{
-	return -ENODEV;
-}
-
-#endif /* __OS_HAS_AGP */
+#endif /* CONFIG_AGP */
 
 #endif /* _DRM_AGPSUPPORT_H_ */
diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h
index e67aeac2aee0..4b74c97d297a 100644
--- a/include/drm/drm_atomic.h
+++ b/include/drm/drm_atomic.h
@@ -136,6 +136,9 @@ drm_atomic_connectors_for_crtc(struct drm_atomic_state *state,
 
 void drm_atomic_legacy_backoff(struct drm_atomic_state *state);
 
+void
+drm_atomic_clean_old_fb(struct drm_device *dev, unsigned plane_mask, int ret);
+
 int __must_check drm_atomic_check_only(struct drm_atomic_state *state);
 int __must_check drm_atomic_commit(struct drm_atomic_state *state);
 int __must_check drm_atomic_async_commit(struct drm_atomic_state *state);
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 683f1421a825..3f0c6909dda1 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -86,10 +86,12 @@ static inline uint64_t I642U64(int64_t val)
 }
 
 /* rotation property bits */
+#define DRM_ROTATE_MASK 0x0f
 #define DRM_ROTATE_0	0
 #define DRM_ROTATE_90	1
 #define DRM_ROTATE_180	2
 #define DRM_ROTATE_270	3
+#define DRM_REFLECT_MASK (~DRM_ROTATE_MASK)
 #define DRM_REFLECT_X	4
 #define DRM_REFLECT_Y	5
 
@@ -405,9 +407,6 @@ struct drm_crtc_funcs {
  * @enabled: is this CRTC enabled?
  * @mode: current mode timings
  * @hwmode: mode timings as programmed to hw regs
- * @invert_dimensions: for purposes of error checking crtc vs fb sizes,
- *    invert the width/height of the crtc.  This is used if the driver
- *    is performing 90 or 270 degree rotated scanout
  * @x: x position on screen
  * @y: y position on screen
  * @funcs: CRTC control functions
@@ -456,8 +455,6 @@ struct drm_crtc {
 	 */
 	struct drm_display_mode hwmode;
 
-	bool invert_dimensions;
-
 	int x, y;
 	const struct drm_crtc_funcs *funcs;
 
diff --git a/include/drm/drm_crtc_helper.h b/include/drm/drm_crtc_helper.h
index 2a747a91fded..3febb4b9fce9 100644
--- a/include/drm/drm_crtc_helper.h
+++ b/include/drm/drm_crtc_helper.h
@@ -240,5 +240,6 @@ extern void drm_kms_helper_hotplug_event(struct drm_device *dev);
 
 extern void drm_kms_helper_poll_disable(struct drm_device *dev);
 extern void drm_kms_helper_poll_enable(struct drm_device *dev);
+extern void drm_kms_helper_poll_enable_locked(struct drm_device *dev);
 
 #endif
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index 9ec4716df7b5..bb9d0deca07c 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -568,6 +568,10 @@
 #define MODE_I2C_READ	4
 #define MODE_I2C_STOP	8
 
+/* DP 1.2 MST PORTs - Section 2.5.1 v1.2a spec */
+#define DP_MST_PHYSICAL_PORT_0 0
+#define DP_MST_LOGICAL_PORT_0 8
+
 #define DP_LINK_STATUS_SIZE	   6
 bool drm_dp_channel_eq_ok(const u8 link_status[DP_LINK_STATUS_SIZE],
 			  int lane_count);
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
index 86d0b25ed054..5340099741ae 100644
--- a/include/drm/drm_dp_mst_helper.h
+++ b/include/drm/drm_dp_mst_helper.h
@@ -253,6 +253,7 @@ struct drm_dp_remote_dpcd_write {
 	u8 *bytes;
 };
 
+#define DP_REMOTE_I2C_READ_MAX_TRANSACTIONS 4
 struct drm_dp_remote_i2c_read {
 	u8 num_transactions;
 	u8 port_number;
@@ -262,7 +263,7 @@ struct drm_dp_remote_i2c_read {
 		u8 *bytes;
 		u8 no_stop_bit;
 		u8 i2c_transaction_delay;
-	} transactions[4];
+	} transactions[DP_REMOTE_I2C_READ_MAX_TRANSACTIONS];
 	u8 read_i2c_device_id;
 	u8 num_bytes_read;
 };
@@ -374,6 +375,7 @@ struct drm_dp_mst_topology_mgr;
 struct drm_dp_mst_topology_cbs {
 	/* create a connector for a port */
 	struct drm_connector *(*add_connector)(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port, const char *path);
+	void (*register_connector)(struct drm_connector *connector);
 	void (*destroy_connector)(struct drm_dp_mst_topology_mgr *mgr,
 				  struct drm_connector *connector);
 	void (*hotplug)(struct drm_dp_mst_topology_mgr *mgr);
diff --git a/include/drm/drm_gem.h b/include/drm/drm_gem.h
index 7a592d7e398b..15e7f007380f 100644
--- a/include/drm/drm_gem.h
+++ b/include/drm/drm_gem.h
@@ -142,8 +142,11 @@ drm_gem_object_reference(struct drm_gem_object *obj)
 static inline void
 drm_gem_object_unreference(struct drm_gem_object *obj)
 {
-	if (obj != NULL)
+	if (obj != NULL) {
+		WARN_ON(!mutex_is_locked(&obj->dev->struct_mutex));
+
 		kref_put(&obj->refcount, drm_gem_object_free);
+	}
 }
 
 static inline void
diff --git a/include/drm/drm_of.h b/include/drm/drm_of.h
index 2441f7112074..8544665ee4f4 100644
--- a/include/drm/drm_of.h
+++ b/include/drm/drm_of.h
@@ -1,18 +1,31 @@
 #ifndef __DRM_OF_H__
 #define __DRM_OF_H__
 
+struct component_master_ops;
+struct device;
 struct drm_device;
 struct device_node;
 
 #ifdef CONFIG_OF
 extern uint32_t drm_of_find_possible_crtcs(struct drm_device *dev,
 					   struct device_node *port);
+extern int drm_of_component_probe(struct device *dev,
+				  int (*compare_of)(struct device *, void *),
+				  const struct component_master_ops *m_ops);
 #else
 static inline uint32_t drm_of_find_possible_crtcs(struct drm_device *dev,
 						  struct device_node *port)
 {
 	return 0;
 }
+
+static inline int
+drm_of_component_probe(struct device *dev,
+		       int (*compare_of)(struct device *, void *),
+		       const struct component_master_ops *m_ops)
+{
+	return -EINVAL;
+}
 #endif
 
 #endif /* __DRM_OF_H__ */
diff --git a/include/drm/drm_vma_manager.h b/include/drm/drm_vma_manager.h
index 8cd402c73a5f..2f63dd5e05eb 100644
--- a/include/drm/drm_vma_manager.h
+++ b/include/drm/drm_vma_manager.h
@@ -54,9 +54,6 @@ void drm_vma_offset_manager_init(struct drm_vma_offset_manager *mgr,
 				 unsigned long page_offset, unsigned long size);
 void drm_vma_offset_manager_destroy(struct drm_vma_offset_manager *mgr);
 
-struct drm_vma_offset_node *drm_vma_offset_lookup(struct drm_vma_offset_manager *mgr,
-						  unsigned long start,
-						  unsigned long pages);
 struct drm_vma_offset_node *drm_vma_offset_lookup_locked(struct drm_vma_offset_manager *mgr,
 							   unsigned long start,
 							   unsigned long pages);
@@ -71,25 +68,25 @@ bool drm_vma_node_is_allowed(struct drm_vma_offset_node *node,
 			     struct file *filp);
 
 /**
- * drm_vma_offset_exact_lookup() - Look up node by exact address
+ * drm_vma_offset_exact_lookup_locked() - Look up node by exact address
  * @mgr: Manager object
  * @start: Start address (page-based, not byte-based)
  * @pages: Size of object (page-based)
  *
- * Same as drm_vma_offset_lookup() but does not allow any offset into the node.
+ * Same as drm_vma_offset_lookup_locked() but does not allow any offset into the node.
  * It only returns the exact object with the given start address.
  *
  * RETURNS:
  * Node at exact start address @start.
  */
 static inline struct drm_vma_offset_node *
-drm_vma_offset_exact_lookup(struct drm_vma_offset_manager *mgr,
-			    unsigned long start,
-			    unsigned long pages)
+drm_vma_offset_exact_lookup_locked(struct drm_vma_offset_manager *mgr,
+				   unsigned long start,
+				   unsigned long pages)
 {
 	struct drm_vma_offset_node *node;
 
-	node = drm_vma_offset_lookup(mgr, start, pages);
+	node = drm_vma_offset_lookup_locked(mgr, start, pages);
 	return (node && node->vm_node.start == start) ? node : NULL;
 }
 
@@ -97,7 +94,7 @@ drm_vma_offset_exact_lookup(struct drm_vma_offset_manager *mgr,
  * drm_vma_offset_lock_lookup() - Lock lookup for extended private use
  * @mgr: Manager object
  *
- * Lock VMA manager for extended lookups. Only *_locked() VMA function calls
+ * Lock VMA manager for extended lookups. Only locked VMA function calls
  * are allowed while holding this lock. All other contexts are blocked from VMA
  * until the lock is released via drm_vma_offset_unlock_lookup().
  *
@@ -108,13 +105,6 @@ drm_vma_offset_exact_lookup(struct drm_vma_offset_manager *mgr,
  * not call any other VMA helpers while holding this lock.
  *
  * Note: You're in atomic-context while holding this lock!
- *
- * Example:
- *   drm_vma_offset_lock_lookup(mgr);
- *   node = drm_vma_offset_lookup_locked(mgr);
- *   if (node)
- *       kref_get_unless_zero(container_of(node, sth, entr));
- *   drm_vma_offset_unlock_lookup(mgr);
  */
 static inline void drm_vma_offset_lock_lookup(struct drm_vma_offset_manager *mgr)
 {