Merge tag 'drm-misc-next-2019-08-19' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for 5.4:

UAPI Changes:

Cross-subsystem Changes:

Core Changes:
  - dma-buf: add reservation_object_fences helper, relax
             reservation_object_add_shared_fence, remove
             reservation_object seq number (and then
             restored)
  - dma-fence: Shrinkage of the dma_fence structure,
               Merge dma_fence_signal and dma_fence_signal_locked,
               Store the timestamp in struct dma_fence in a union with
               cb_list

Driver Changes:
  - More dt-bindings YAML conversions
  - More removal of drmP.h includes
  - dw-hdmi: Support get_eld and various i2s improvements
  - gm12u320: Few fixes
  - meson: Global cleanup
  - panfrost: Few refactors, Support for GPU heap allocations
  - sun4i: Support for DDC enable GPIO
  - New panels: TI nspire, NEC NL8048HL11, LG Philips LB035Q02,
                Sharp LS037V7DW01, Sony ACX565AKM, Toppoly TD028TTEC1
                Toppoly TD043MTEA1

Signed-off-by: Dave Airlie <airlied@redhat.com>
[airlied: fixup dma_resv rename fallout]

From: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190819141923.7l2adietcr2pioct@flea

8 files changed, 112 insertions, 128 deletions

diff --git a/include/drm/bridge/dw_hdmi.h b/include/drm/bridge/dw_hdmi.h
index c402364aec0d..cf528c289857 100644
--- a/include/drm/bridge/dw_hdmi.h
+++ b/include/drm/bridge/dw_hdmi.h
@@ -155,6 +155,8 @@ void dw_hdmi_resume(struct dw_hdmi *hdmi);
 void dw_hdmi_setup_rx_sense(struct dw_hdmi *hdmi, bool hpd, bool rx_sense);
 
 void dw_hdmi_set_sample_rate(struct dw_hdmi *hdmi, unsigned int rate);
+void dw_hdmi_set_channel_count(struct dw_hdmi *hdmi, unsigned int cnt);
+void dw_hdmi_set_channel_allocation(struct dw_hdmi *hdmi, unsigned int ca);
 void dw_hdmi_audio_enable(struct dw_hdmi *hdmi);
 void dw_hdmi_audio_disable(struct dw_hdmi *hdmi);
 void dw_hdmi_set_high_tmds_clock_ratio(struct dw_hdmi *hdmi);
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 94aae87b1138..037b1f7a87a5 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -87,7 +87,7 @@ struct module;
 
 struct device_node;
 struct videomode;
-struct reservation_object;
+struct dma_resv;
 struct dma_buf_attachment;
 
 struct pci_dev;
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index 0b9997e27689..681cb590f952 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -543,8 +543,8 @@ struct drm_connector_state {
 	 *
 	 * This is also used in the atomic helpers to map encoders to their
 	 * current and previous connectors, see
-	 * &drm_atomic_get_old_connector_for_encoder() and
-	 * &drm_atomic_get_new_connector_for_encoder().
+	 * drm_atomic_get_old_connector_for_encoder() and
+	 * drm_atomic_get_new_connector_for_encoder().
 	 *
 	 * NOTE: Atomic drivers must fill this out (either themselves or through
 	 * helpers), for otherwise the GETCONNECTOR and GETENCODER IOCTLs will
diff --git a/include/drm/drm_gem.h b/include/drm/drm_gem.h
index ae693c0666cd..6aaba14f5972 100644
--- a/include/drm/drm_gem.h
+++ b/include/drm/drm_gem.h
@@ -35,7 +35,7 @@
  */
 
 #include <linux/kref.h>
-#include <linux/reservation.h>
+#include <linux/dma-resv.h>
 
 #include <drm/drm_vma_manager.h>
 
@@ -276,7 +276,7 @@ struct drm_gem_object {
 	 *
 	 * Normally (@resv == &@_resv) except for imported GEM objects.
 	 */
-	struct reservation_object *resv;
+	struct dma_resv *resv;
 
 	/**
 	 * @_resv:
@@ -285,7 +285,7 @@ struct drm_gem_object {
 	 *
 	 * This is unused for imported GEM objects.
 	 */
-	struct reservation_object _resv;
+	struct dma_resv _resv;
 
 	/**
 	 * @funcs:
@@ -390,7 +390,7 @@ void drm_gem_put_pages(struct drm_gem_object *obj, struct page **pages,
 int drm_gem_objects_lookup(struct drm_file *filp, void __user *bo_handles,
 			   int count, struct drm_gem_object ***objs_out);
 struct drm_gem_object *drm_gem_object_lookup(struct drm_file *filp, u32 handle);
-long drm_gem_reservation_object_wait(struct drm_file *filep, u32 handle,
+long drm_gem_dma_resv_wait(struct drm_file *filep, u32 handle,
 				    bool wait_all, unsigned long timeout);
 int drm_gem_lock_reservations(struct drm_gem_object **objs, int count,
 			      struct ww_acquire_ctx *acquire_ctx);
diff --git a/include/drm/drm_gem_shmem_helper.h b/include/drm/drm_gem_shmem_helper.h
index 038b6d313447..ce1600fdfc3e 100644
--- a/include/drm/drm_gem_shmem_helper.h
+++ b/include/drm/drm_gem_shmem_helper.h
@@ -44,6 +44,9 @@ struct drm_gem_shmem_object {
 	 */
 	unsigned int pages_use_count;
 
+	int madv;
+	struct list_head madv_list;
+
 	/**
 	 * @pages_mark_dirty_on_put:
 	 *
@@ -121,6 +124,18 @@ void drm_gem_shmem_unpin(struct drm_gem_object *obj);
 void *drm_gem_shmem_vmap(struct drm_gem_object *obj);
 void drm_gem_shmem_vunmap(struct drm_gem_object *obj, void *vaddr);
 
+int drm_gem_shmem_madvise(struct drm_gem_object *obj, int madv);
+
+static inline bool drm_gem_shmem_is_purgeable(struct drm_gem_shmem_object *shmem)
+{
+	return (shmem->madv > 0) &&
+		!shmem->vmap_use_count && shmem->sgt &&
+		!shmem->base.dma_buf && !shmem->base.import_attach;
+}
+
+void drm_gem_shmem_purge_locked(struct drm_gem_object *obj);
+void drm_gem_shmem_purge(struct drm_gem_object *obj);
+
 struct drm_gem_shmem_object *
 drm_gem_shmem_create_with_handle(struct drm_file *file_priv,
 				 struct drm_device *dev, size_t size,
diff --git a/include/drm/drm_panel.h b/include/drm/drm_panel.h
index 26377836141c..624bd15ecfab 100644
--- a/include/drm/drm_panel.h
+++ b/include/drm/drm_panel.h
@@ -36,14 +36,6 @@ struct display_timing;
 
 /**
  * struct drm_panel_funcs - perform operations on a given panel
- * @disable: disable panel (turn off back light, etc.)
- * @unprepare: turn off panel
- * @prepare: turn on panel and perform set up
- * @enable: enable panel (turn on back light, etc.)
- * @get_modes: add modes to the connector that the panel is attached to and
- * return the number of modes added
- * @get_timings: copy display timings into the provided array and return
- * the number of display timings available
  *
  * The .prepare() function is typically called before the display controller
  * starts to transmit video data. Panel drivers can use this to turn the panel
@@ -69,132 +61,107 @@ struct display_timing;
  * the panel. This is the job of the .unprepare() function.
  */
 struct drm_panel_funcs {
-	int (*disable)(struct drm_panel *panel);
-	int (*unprepare)(struct drm_panel *panel);
+	/**
+	 * @prepare:
+	 *
+	 * Turn on panel and perform set up.
+	 */
 	int (*prepare)(struct drm_panel *panel);
+
+	/**
+	 * @enable:
+	 *
+	 * Enable panel (turn on back light, etc.).
+	 */
 	int (*enable)(struct drm_panel *panel);
+
+	/**
+	 * @disable:
+	 *
+	 * Disable panel (turn off back light, etc.).
+	 */
+	int (*disable)(struct drm_panel *panel);
+
+	/**
+	 * @unprepare:
+	 *
+	 * Turn off panel.
+	 */
+	int (*unprepare)(struct drm_panel *panel);
+
+	/**
+	 * @get_modes:
+	 *
+	 * Add modes to the connector that the panel is attached to and
+	 * return the number of modes added.
+	 */
 	int (*get_modes)(struct drm_panel *panel);
+
+	/**
+	 * @get_timings:
+	 *
+	 * Copy display timings into the provided array and return
+	 * the number of display timings available.
+	 */
 	int (*get_timings)(struct drm_panel *panel, unsigned int num_timings,
 			   struct display_timing *timings);
 };
 
 /**
  * struct drm_panel - DRM panel object
- * @drm: DRM device owning the panel
- * @connector: DRM connector that the panel is attached to
- * @dev: parent device of the panel
- * @link: link from panel device (supplier) to DRM device (consumer)
- * @funcs: operations that can be performed on the panel
- * @list: panel entry in registry
  */
 struct drm_panel {
+	/**
+	 * @drm:
+	 *
+	 * DRM device owning the panel.
+	 */
 	struct drm_device *drm;
+
+	/**
+	 * @connector:
+	 *
+	 * DRM connector that the panel is attached to.
+	 */
 	struct drm_connector *connector;
+
+	/**
+	 * @dev:
+	 *
+	 * Parent device of the panel.
+	 */
 	struct device *dev;
 
+	/**
+	 * @funcs:
+	 *
+	 * Operations that can be performed on the panel.
+	 */
 	const struct drm_panel_funcs *funcs;
 
+	/**
+	 * @list:
+	 *
+	 * Panel entry in registry.
+	 */
 	struct list_head list;
 };
 
-/**
- * drm_disable_unprepare - power off a panel
- * @panel: DRM panel
- *
- * Calling this function will completely power off a panel (assert the panel's
- * reset, turn off power supplies, ...). After this function has completed, it
- * is usually no longer possible to communicate with the panel until another
- * call to drm_panel_prepare().
- *
- * Return: 0 on success or a negative error code on failure.
- */
-static inline int drm_panel_unprepare(struct drm_panel *panel)
-{
-	if (panel && panel->funcs && panel->funcs->unprepare)
-		return panel->funcs->unprepare(panel);
-
-	return panel ? -ENOSYS : -EINVAL;
-}
-
-/**
- * drm_panel_disable - disable a panel
- * @panel: DRM panel
- *
- * This will typically turn off the panel's backlight or disable the display
- * drivers. For smart panels it should still be possible to communicate with
- * the integrated circuitry via any command bus after this call.
- *
- * Return: 0 on success or a negative error code on failure.
- */
-static inline int drm_panel_disable(struct drm_panel *panel)
-{
-	if (panel && panel->funcs && panel->funcs->disable)
-		return panel->funcs->disable(panel);
-
-	return panel ? -ENOSYS : -EINVAL;
-}
-
-/**
- * drm_panel_prepare - power on a panel
- * @panel: DRM panel
- *
- * Calling this function will enable power and deassert any reset signals to
- * the panel. After this has completed it is possible to communicate with any
- * integrated circuitry via a command bus.
- *
- * Return: 0 on success or a negative error code on failure.
- */
-static inline int drm_panel_prepare(struct drm_panel *panel)
-{
-	if (panel && panel->funcs && panel->funcs->prepare)
-		return panel->funcs->prepare(panel);
-
-	return panel ? -ENOSYS : -EINVAL;
-}
-
-/**
- * drm_panel_enable - enable a panel
- * @panel: DRM panel
- *
- * Calling this function will cause the panel display drivers to be turned on
- * and the backlight to be enabled. Content will be visible on screen after
- * this call completes.
- *
- * Return: 0 on success or a negative error code on failure.
- */
-static inline int drm_panel_enable(struct drm_panel *panel)
-{
-	if (panel && panel->funcs && panel->funcs->enable)
-		return panel->funcs->enable(panel);
-
-	return panel ? -ENOSYS : -EINVAL;
-}
-
-/**
- * drm_panel_get_modes - probe the available display modes of a panel
- * @panel: DRM panel
- *
- * The modes probed from the panel are automatically added to the connector
- * that the panel is attached to.
- *
- * Return: The number of modes available from the panel on success or a
- * negative error code on failure.
- */
-static inline int drm_panel_get_modes(struct drm_panel *panel)
-{
-	if (panel && panel->funcs && panel->funcs->get_modes)
-		return panel->funcs->get_modes(panel);
-
-	return panel ? -ENOSYS : -EINVAL;
-}
-
 void drm_panel_init(struct drm_panel *panel);
 
 int drm_panel_add(struct drm_panel *panel);
 void drm_panel_remove(struct drm_panel *panel);
 
 int drm_panel_attach(struct drm_panel *panel, struct drm_connector *connector);
-int drm_panel_detach(struct drm_panel *panel);
+void drm_panel_detach(struct drm_panel *panel);
+
+int drm_panel_prepare(struct drm_panel *panel);
+int drm_panel_unprepare(struct drm_panel *panel);
+
+int drm_panel_enable(struct drm_panel *panel);
+int drm_panel_disable(struct drm_panel *panel);
+
+int drm_panel_get_modes(struct drm_panel *panel);
 
 #if defined(CONFIG_OF) && defined(CONFIG_DRM_PANEL)
 struct drm_panel *of_drm_find_panel(const struct device_node *np);
diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h
index 65ef5376de59..43c4929a2171 100644
--- a/include/drm/ttm/ttm_bo_api.h
+++ b/include/drm/ttm/ttm_bo_api.h
@@ -40,7 +40,7 @@
 #include <linux/mutex.h>
 #include <linux/mm.h>
 #include <linux/bitmap.h>
-#include <linux/reservation.h>
+#include <linux/dma-resv.h>
 
 struct ttm_bo_global;
 
@@ -273,7 +273,7 @@ struct ttm_bo_kmap_obj {
 struct ttm_operation_ctx {
 	bool interruptible;
 	bool no_wait_gpu;
-	struct reservation_object *resv;
+	struct dma_resv *resv;
 	uint64_t bytes_moved;
 	uint32_t flags;
 };
@@ -493,7 +493,7 @@ size_t ttm_bo_dma_acc_size(struct ttm_bo_device *bdev,
  * @page_alignment: Data alignment in pages.
  * @ctx: TTM operation context for memory allocation.
  * @acc_size: Accounted size for this object.
- * @resv: Pointer to a reservation_object, or NULL to let ttm allocate one.
+ * @resv: Pointer to a dma_resv, or NULL to let ttm allocate one.
  * @destroy: Destroy function. Use NULL for kfree().
  *
  * This function initializes a pre-allocated struct ttm_buffer_object.
@@ -526,7 +526,7 @@ int ttm_bo_init_reserved(struct ttm_bo_device *bdev,
 			 struct ttm_operation_ctx *ctx,
 			 size_t acc_size,
 			 struct sg_table *sg,
-			 struct reservation_object *resv,
+			 struct dma_resv *resv,
 			 void (*destroy) (struct ttm_buffer_object *));
 
 /**
@@ -545,7 +545,7 @@ int ttm_bo_init_reserved(struct ttm_bo_device *bdev,
  * point to the shmem object backing a GEM object if TTM is used to back a
  * GEM user interface.
  * @acc_size: Accounted size for this object.
- * @resv: Pointer to a reservation_object, or NULL to let ttm allocate one.
+ * @resv: Pointer to a dma_resv, or NULL to let ttm allocate one.
  * @destroy: Destroy function. Use NULL for kfree().
  *
  * This function initializes a pre-allocated struct ttm_buffer_object.
@@ -570,7 +570,7 @@ int ttm_bo_init(struct ttm_bo_device *bdev, struct ttm_buffer_object *bo,
 		unsigned long size, enum ttm_bo_type type,
 		struct ttm_placement *placement,
 		uint32_t page_alignment, bool interrubtible, size_t acc_size,
-		struct sg_table *sg, struct reservation_object *resv,
+		struct sg_table *sg, struct dma_resv *resv,
 		void (*destroy) (struct ttm_buffer_object *));
 
 /**
diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h
index 076d7ca0f8b6..6f536caea368 100644
--- a/include/drm/ttm/ttm_bo_driver.h
+++ b/include/drm/ttm/ttm_bo_driver.h
@@ -35,7 +35,7 @@
 #include <linux/workqueue.h>
 #include <linux/fs.h>
 #include <linux/spinlock.h>
-#include <linux/reservation.h>
+#include <linux/dma-resv.h>
 
 #include "ttm_bo_api.h"
 #include "ttm_memory.h"
@@ -664,14 +664,14 @@ static inline int __ttm_bo_reserve(struct ttm_buffer_object *bo,
 		if (WARN_ON(ticket))
 			return -EBUSY;
 
-		success = reservation_object_trylock(bo->base.resv);
+		success = dma_resv_trylock(bo->base.resv);
 		return success ? 0 : -EBUSY;
 	}
 
 	if (interruptible)
-		ret = reservation_object_lock_interruptible(bo->base.resv, ticket);
+		ret = dma_resv_lock_interruptible(bo->base.resv, ticket);
 	else
-		ret = reservation_object_lock(bo->base.resv, ticket);
+		ret = dma_resv_lock(bo->base.resv, ticket);
 	if (ret == -EINTR)
 		return -ERESTARTSYS;
 	return ret;
@@ -755,10 +755,10 @@ static inline int ttm_bo_reserve_slowpath(struct ttm_buffer_object *bo,
 	WARN_ON(!kref_read(&bo->kref));
 
 	if (interruptible)
-		ret = reservation_object_lock_slow_interruptible(bo->base.resv,
+		ret = dma_resv_lock_slow_interruptible(bo->base.resv,
 								 ticket);
 	else
-		reservation_object_lock_slow(bo->base.resv, ticket);
+		dma_resv_lock_slow(bo->base.resv, ticket);
 
 	if (likely(ret == 0))
 		ttm_bo_del_sub_from_lru(bo);
@@ -783,7 +783,7 @@ static inline void ttm_bo_unreserve(struct ttm_buffer_object *bo)
 	else
 		ttm_bo_move_to_lru_tail(bo, NULL);
 	spin_unlock(&bo->bdev->glob->lru_lock);
-	reservation_object_unlock(bo->base.resv);
+	dma_resv_unlock(bo->base.resv);
 }
 
 /*