Merge tag 'drm-misc-next-2023-07-13' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for v6.6:

UAPI Changes:

 * fbdev:
   * Make fbdev userspace interfaces optional; only leaves the
     framebuffer console active

 * prime:
   * Support dma-buf self-import for all drivers automatically: improves
     support for many userspace compositors

Cross-subsystem Changes:

 * backlight:
   * Fix interaction with fbdev in several drivers

 * base: Convert struct platform.remove to return void; part of a larger,
   tree-wide effort

 * dma-buf: Acquire reservation lock for mmap() in exporters; part
   of an on-going effort to simplify locking around dma-bufs

 * fbdev:
   * Use Linux device instead of fbdev device in many places
   * Use deferred-I/O helper macros in various drivers

 * i2c: Convert struct i2c from .probe_new to .probe; part of a larger,
   tree-wide effort

 * video:
   * Avoid including <linux/screen_info.h>

Core Changes:

 * atomic:
   * Improve logging

 * prime:
   * Remove struct drm_driver.gem_prime_mmap plus driver updates: all
     drivers now implement this callback with drm_gem_prime_mmap()

 * gem:
   * Support execution contexts: provides locking over multiple GEM
     objects

 * ttm:
   * Support init_on_free
   * Swapout fixes

Driver Changes:

 * accel:
   * ivpu: MMU updates; Support debugfs

 * ast:
   * Improve device-model detection
   * Cleanups

 * bridge:
   * dw-hdmi: Improve support for YUV420 bus format
   * dw-mipi-dsi: Fix enable/disable of DSI controller
   * lt9611uxc: Use MODULE_FIRMWARE()
   * ps8640: Remove broken EDID code
   * samsung-dsim: Fix command transfer
   * tc358764: Handle HS/VS polarity; Use BIT() macro; Various cleanups
   * Cleanups

 * ingenic:
   * Kconfig REGMAP fixes

 * loongson:
   * Support display controller

 * mgag200:
   * Minor fixes

 * mxsfb:
   * Support disabling overlay planes

 * nouveau:
   * Improve VRAM detection
   * Various fixes and cleanups

 * panel:
   * panel-edp: Support AUO B116XAB01.4
   * Support Visionox R66451 plus DT bindings
   * Cleanups

 * ssd130x:
   * Support per-controller default resolution plus DT bindings
   * Reduce memory-allocation overhead
   * Cleanups

 * tidss:
   * Support TI AM625 plus DT bindings
   * Implement new connector model plus driver updates

 * vkms
   * Improve write-back support
   * Documentation fixes

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230713090830.GA23281@linux-uq9g

8 files changed, 138 insertions, 66 deletions

diff --git a/include/drm/bridge/dw_hdmi.h b/include/drm/bridge/dw_hdmi.h
index f668e75fbabe..6a46baa0737c 100644
--- a/include/drm/bridge/dw_hdmi.h
+++ b/include/drm/bridge/dw_hdmi.h
@@ -206,4 +206,6 @@ void dw_hdmi_phy_update_hpd(struct dw_hdmi *hdmi, void *data,
 			    bool force, bool disabled, bool rxsense);
 void dw_hdmi_phy_setup_hpd(struct dw_hdmi *hdmi, void *data);
 
+bool dw_hdmi_bus_fmt_is_420(struct dw_hdmi *hdmi);
+
 #endif /* __IMX_HDMI_H__ */
diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h
index 89e2706cac56..b77f2c7275b7 100644
--- a/include/drm/drm_drv.h
+++ b/include/drm/drm_drv.h
@@ -304,22 +304,14 @@ struct drm_driver {
 	/**
 	 * @prime_handle_to_fd:
 	 *
-	 * Main PRIME export function. Should be implemented with
-	 * drm_gem_prime_handle_to_fd() for GEM based drivers.
-	 *
-	 * For an in-depth discussion see :ref:`PRIME buffer sharing
-	 * documentation <prime_buffer_sharing>`.
+	 * PRIME export function. Only used by vmwgfx.
 	 */
 	int (*prime_handle_to_fd)(struct drm_device *dev, struct drm_file *file_priv,
 				uint32_t handle, uint32_t flags, int *prime_fd);
 	/**
 	 * @prime_fd_to_handle:
 	 *
-	 * Main PRIME import function. Should be implemented with
-	 * drm_gem_prime_fd_to_handle() for GEM based drivers.
-	 *
-	 * For an in-depth discussion see :ref:`PRIME buffer sharing
-	 * documentation <prime_buffer_sharing>`.
+	 * PRIME import function. Only used by vmwgfx.
 	 */
 	int (*prime_fd_to_handle)(struct drm_device *dev, struct drm_file *file_priv,
 				int prime_fd, uint32_t *handle);
@@ -343,20 +335,6 @@ struct drm_driver {
 				struct drm_device *dev,
 				struct dma_buf_attachment *attach,
 				struct sg_table *sgt);
-	/**
-	 * @gem_prime_mmap:
-	 *
-	 * mmap hook for GEM drivers, used to implement dma-buf mmap in the
-	 * PRIME helpers.
-	 *
-	 * This hook only exists for historical reasons. Drivers must use
-	 * drm_gem_prime_mmap() to implement it.
-	 *
-	 * FIXME: Convert all drivers to implement mmap in struct
-	 * &drm_gem_object_funcs and inline drm_gem_prime_mmap() into
-	 * its callers. This hook should be removed afterwards.
-	 */
-	int (*gem_prime_mmap)(struct drm_gem_object *obj, struct vm_area_struct *vma);
 
 	/**
 	 * @dumb_create:
diff --git a/include/drm/drm_exec.h b/include/drm/drm_exec.h
new file mode 100644
index 000000000000..73205afec162
--- /dev/null
+++ b/include/drm/drm_exec.h
@@ -0,0 +1,123 @@
+/* SPDX-License-Identifier: GPL-2.0 OR MIT */
+
+#ifndef __DRM_EXEC_H__
+#define __DRM_EXEC_H__
+
+#include <linux/ww_mutex.h>
+
+#define DRM_EXEC_INTERRUPTIBLE_WAIT	BIT(0)
+#define DRM_EXEC_IGNORE_DUPLICATES	BIT(1)
+
+struct drm_gem_object;
+
+/**
+ * struct drm_exec - Execution context
+ */
+struct drm_exec {
+	/**
+	 * @flags: Flags to control locking behavior
+	 */
+	uint32_t		flags;
+
+	/**
+	 * @ticket: WW ticket used for acquiring locks
+	 */
+	struct ww_acquire_ctx	ticket;
+
+	/**
+	 * @num_objects: number of objects locked
+	 */
+	unsigned int		num_objects;
+
+	/**
+	 * @max_objects: maximum objects in array
+	 */
+	unsigned int		max_objects;
+
+	/**
+	 * @objects: array of the locked objects
+	 */
+	struct drm_gem_object	**objects;
+
+	/**
+	 * @contended: contended GEM object we backed off for
+	 */
+	struct drm_gem_object	*contended;
+
+	/**
+	 * @prelocked: already locked GEM object due to contention
+	 */
+	struct drm_gem_object *prelocked;
+};
+
+/**
+ * drm_exec_for_each_locked_object - iterate over all the locked objects
+ * @exec: drm_exec object
+ * @index: unsigned long index for the iteration
+ * @obj: the current GEM object
+ *
+ * Iterate over all the locked GEM objects inside the drm_exec object.
+ */
+#define drm_exec_for_each_locked_object(exec, index, obj)	\
+	for (index = 0, obj = (exec)->objects[0];		\
+	     index < (exec)->num_objects;			\
+	     ++index, obj = (exec)->objects[index])
+
+/**
+ * drm_exec_until_all_locked - loop until all GEM objects are locked
+ * @exec: drm_exec object
+ *
+ * Core functionality of the drm_exec object. Loops until all GEM objects are
+ * locked and no more contention exists. At the beginning of the loop it is
+ * guaranteed that no GEM object is locked.
+ *
+ * Since labels can't be defined local to the loops body we use a jump pointer
+ * to make sure that the retry is only used from within the loops body.
+ */
+#define drm_exec_until_all_locked(exec)				\
+	for (void *__drm_exec_retry_ptr; ({			\
+		__label__ __drm_exec_retry;			\
+__drm_exec_retry:						\
+		__drm_exec_retry_ptr = &&__drm_exec_retry;	\
+		(void)__drm_exec_retry_ptr;			\
+		drm_exec_cleanup(exec);				\
+	});)
+
+/**
+ * drm_exec_retry_on_contention - restart the loop to grap all locks
+ * @exec: drm_exec object
+ *
+ * Control flow helper to continue when a contention was detected and we need to
+ * clean up and re-start the loop to prepare all GEM objects.
+ */
+#define drm_exec_retry_on_contention(exec)			\
+	do {							\
+		if (unlikely(drm_exec_is_contended(exec)))	\
+			goto *__drm_exec_retry_ptr;		\
+	} while (0)
+
+/**
+ * drm_exec_is_contended - check for contention
+ * @exec: drm_exec object
+ *
+ * Returns true if the drm_exec object has run into some contention while
+ * locking a GEM object and needs to clean up.
+ */
+static inline bool drm_exec_is_contended(struct drm_exec *exec)
+{
+	return !!exec->contended;
+}
+
+void drm_exec_init(struct drm_exec *exec, uint32_t flags);
+void drm_exec_fini(struct drm_exec *exec);
+bool drm_exec_cleanup(struct drm_exec *exec);
+int drm_exec_lock_obj(struct drm_exec *exec, struct drm_gem_object *obj);
+void drm_exec_unlock_obj(struct drm_exec *exec, struct drm_gem_object *obj);
+int drm_exec_prepare_obj(struct drm_exec *exec, struct drm_gem_object *obj,
+			 unsigned int num_fences);
+int drm_exec_prepare_array(struct drm_exec *exec,
+			   struct drm_gem_object **objects,
+			   unsigned int num_objects,
+			   unsigned int num_fences);
+
+#endif
diff --git a/include/drm/drm_gem_dma_helper.h b/include/drm/drm_gem_dma_helper.h
index 8a043235dad8..a827bde494f6 100644
--- a/include/drm/drm_gem_dma_helper.h
+++ b/include/drm/drm_gem_dma_helper.h
@@ -166,11 +166,8 @@ drm_gem_dma_prime_import_sg_table(struct drm_device *dev,
  * DRM_GEM_DMA_DRIVER_OPS_VMAP_WITH_DUMB_CREATE() instead.
  */
 #define DRM_GEM_DMA_DRIVER_OPS_WITH_DUMB_CREATE(dumb_create_func) \
-	.dumb_create		= (dumb_create_func), \
-	.prime_handle_to_fd	= drm_gem_prime_handle_to_fd, \
-	.prime_fd_to_handle	= drm_gem_prime_fd_to_handle, \
-	.gem_prime_import_sg_table = drm_gem_dma_prime_import_sg_table, \
-	.gem_prime_mmap		= drm_gem_prime_mmap
+	.dumb_create		   = (dumb_create_func), \
+	.gem_prime_import_sg_table = drm_gem_dma_prime_import_sg_table
 
 /**
  * DRM_GEM_DMA_DRIVER_OPS - DMA GEM driver operations
@@ -204,11 +201,8 @@ drm_gem_dma_prime_import_sg_table(struct drm_device *dev,
  * DRM_GEM_DMA_DRIVER_OPS_WITH_DUMB_CREATE() instead.
  */
 #define DRM_GEM_DMA_DRIVER_OPS_VMAP_WITH_DUMB_CREATE(dumb_create_func) \
-	.dumb_create		= dumb_create_func, \
-	.prime_handle_to_fd	= drm_gem_prime_handle_to_fd, \
-	.prime_fd_to_handle	= drm_gem_prime_fd_to_handle, \
-	.gem_prime_import_sg_table = drm_gem_dma_prime_import_sg_table_vmap, \
-	.gem_prime_mmap		= drm_gem_prime_mmap
+	.dumb_create		   = (dumb_create_func), \
+	.gem_prime_import_sg_table = drm_gem_dma_prime_import_sg_table_vmap
 
 /**
  * DRM_GEM_DMA_DRIVER_OPS_VMAP - DMA GEM driver operations ensuring a virtual
diff --git a/include/drm/drm_gem_shmem_helper.h b/include/drm/drm_gem_shmem_helper.h
index 5994fed5e327..bf0c31aa8fbe 100644
--- a/include/drm/drm_gem_shmem_helper.h
+++ b/include/drm/drm_gem_shmem_helper.h
@@ -27,11 +27,6 @@ struct drm_gem_shmem_object {
 	struct drm_gem_object base;
 
 	/**
-	 * @pages_lock: Protects the page table and use count
-	 */
-	struct mutex pages_lock;
-
-	/**
 	 * @pages: Page table
 	 */
 	struct page **pages;
@@ -66,11 +61,6 @@ struct drm_gem_shmem_object {
 	struct sg_table *sgt;
 
 	/**
-	 * @vmap_lock: Protects the vmap address and use count
-	 */
-	struct mutex vmap_lock;
-
-	/**
 	 * @vaddr: Kernel virtual address of the backing memory
 	 */
 	void *vaddr;
@@ -109,7 +99,6 @@ struct drm_gem_shmem_object {
 struct drm_gem_shmem_object *drm_gem_shmem_create(struct drm_device *dev, size_t size);
 void drm_gem_shmem_free(struct drm_gem_shmem_object *shmem);
 
-int drm_gem_shmem_get_pages(struct drm_gem_shmem_object *shmem);
 void drm_gem_shmem_put_pages(struct drm_gem_shmem_object *shmem);
 int drm_gem_shmem_pin(struct drm_gem_shmem_object *shmem);
 void drm_gem_shmem_unpin(struct drm_gem_shmem_object *shmem);
@@ -128,8 +117,7 @@ static inline bool drm_gem_shmem_is_purgeable(struct drm_gem_shmem_object *shmem
 		!shmem->base.dma_buf && !shmem->base.import_attach;
 }
 
-void drm_gem_shmem_purge_locked(struct drm_gem_shmem_object *shmem);
-bool drm_gem_shmem_purge(struct drm_gem_shmem_object *shmem);
+void drm_gem_shmem_purge(struct drm_gem_shmem_object *shmem);
 
 struct sg_table *drm_gem_shmem_get_sg_table(struct drm_gem_shmem_object *shmem);
 struct sg_table *drm_gem_shmem_get_pages_sgt(struct drm_gem_shmem_object *shmem);
@@ -290,10 +278,7 @@ int drm_gem_shmem_dumb_create(struct drm_file *file, struct drm_device *dev,
  * the &drm_driver structure.
  */
 #define DRM_GEM_SHMEM_DRIVER_OPS \
-	.prime_handle_to_fd	= drm_gem_prime_handle_to_fd, \
-	.prime_fd_to_handle	= drm_gem_prime_fd_to_handle, \
 	.gem_prime_import_sg_table = drm_gem_shmem_prime_import_sg_table, \
-	.gem_prime_mmap		= drm_gem_prime_mmap, \
-	.dumb_create		= drm_gem_shmem_dumb_create
+	.dumb_create		   = drm_gem_shmem_dumb_create
 
 #endif /* __DRM_GEM_SHMEM_HELPER_H__ */
diff --git a/include/drm/drm_gem_vram_helper.h b/include/drm/drm_gem_vram_helper.h
index f4aab64411d8..e18429f09e53 100644
--- a/include/drm/drm_gem_vram_helper.h
+++ b/include/drm/drm_gem_vram_helper.h
@@ -157,12 +157,9 @@ void drm_gem_vram_simple_display_pipe_cleanup_fb(
  * &struct drm_driver with default functions.
  */
 #define DRM_GEM_VRAM_DRIVER \
-	.debugfs_init             = drm_vram_mm_debugfs_init, \
-	.dumb_create		  = drm_gem_vram_driver_dumb_create, \
-	.dumb_map_offset	  = drm_gem_ttm_dumb_map_offset, \
-	.gem_prime_mmap		  = drm_gem_prime_mmap, \
-	.prime_handle_to_fd	  = drm_gem_prime_handle_to_fd, \
-	.prime_fd_to_handle	  = drm_gem_prime_fd_to_handle
+	.debugfs_init	 = drm_vram_mm_debugfs_init, \
+	.dumb_create	 = drm_gem_vram_driver_dumb_create, \
+	.dumb_map_offset = drm_gem_ttm_dumb_map_offset
 
 /*
  *  VRAM memory manager
diff --git a/include/drm/drm_prime.h b/include/drm/drm_prime.h
index 2a1d01e5b56b..a7abf9f3e697 100644
--- a/include/drm/drm_prime.h
+++ b/include/drm/drm_prime.h
@@ -60,19 +60,12 @@ enum dma_data_direction;
 
 struct drm_device;
 struct drm_gem_object;
-struct drm_file;
 
 /* core prime functions */
 struct dma_buf *drm_gem_dmabuf_export(struct drm_device *dev,
 				      struct dma_buf_export_info *exp_info);
 void drm_gem_dmabuf_release(struct dma_buf *dma_buf);
 
-int drm_gem_prime_fd_to_handle(struct drm_device *dev,
-			       struct drm_file *file_priv, int prime_fd, uint32_t *handle);
-int drm_gem_prime_handle_to_fd(struct drm_device *dev,
-			       struct drm_file *file_priv, uint32_t handle, uint32_t flags,
-			       int *prime_fd);
-
 /* helper functions for exporting */
 int drm_gem_map_attach(struct dma_buf *dma_buf,
 		       struct dma_buf_attachment *attach);
diff --git a/include/drm/drm_sysfs.h b/include/drm/drm_sysfs.h
index 6273cac44e47..96a5d858404b 100644
--- a/include/drm/drm_sysfs.h
+++ b/include/drm/drm_sysfs.h
@@ -12,6 +12,6 @@ void drm_class_device_unregister(struct device *dev);
 
 void drm_sysfs_hotplug_event(struct drm_device *dev);
 void drm_sysfs_connector_hotplug_event(struct drm_connector *connector);
-void drm_sysfs_connector_status_event(struct drm_connector *connector,
-				      struct drm_property *property);
+void drm_sysfs_connector_property_event(struct drm_connector *connector,
+					struct drm_property *property);
 #endif