update kernel to 5.10.198

hc

2024-01-03 2f7c68cb55ecb7331f2381deb497c27155f32faf

 kernel/include/drm/drm_device.h
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@@ -17,6 +17,7 @@
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 struct drm_sg_mem;
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 struct drm_local_map;
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 struct drm_vma_offset_manager;
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+struct drm_vram_mm;
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 struct drm_fb_helper;
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 struct inode;
..
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@@ -24,26 +25,108 @@
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 struct pci_dev;
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 struct pci_controller;
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+
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 /**
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- * DRM device structure. This structure represent a complete card that
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+ * enum drm_switch_power - power state of drm device
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+ */
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+
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+enum switch_power_state {
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+	/** @DRM_SWITCH_POWER_ON: Power state is ON */
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+	DRM_SWITCH_POWER_ON = 0,
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+
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+	/** @DRM_SWITCH_POWER_OFF: Power state is OFF */
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+	DRM_SWITCH_POWER_OFF = 1,
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+
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+	/** @DRM_SWITCH_POWER_CHANGING: Power state is changing */
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+	DRM_SWITCH_POWER_CHANGING = 2,
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+
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+	/** @DRM_SWITCH_POWER_DYNAMIC_OFF: Suspended */
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+	DRM_SWITCH_POWER_DYNAMIC_OFF = 3,
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+};
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+
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+/**
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+ * struct drm_device - DRM device structure
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+ *
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+ * This structure represent a complete card that
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  * may contain multiple heads.
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  */
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 struct drm_device {
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-	struct list_head legacy_dev_list;/**< list of devices per driver for stealth attach cleanup */
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-	int if_version;			/**< Highest interface version set */
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+	/**
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+	 * @legacy_dev_list:
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+	 *
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+	 * List of devices per driver for stealth attach cleanup
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+	 */
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+	struct list_head legacy_dev_list;
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-	/** \name Lifetime Management */
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-	/*@{ */
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-	struct kref ref;		/**< Object ref-count */
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-	struct device *dev;		/**< Device structure of bus-device */
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-	struct drm_driver *driver;	/**< DRM driver managing the device */
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-	void *dev_private;		/**< DRM driver private data */
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-	struct drm_minor *primary;		/**< Primary node */
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-	struct drm_minor *render;		/**< Render node */
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+	/** @if_version: Highest interface version set */
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+	int if_version;
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+
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+	/** @ref: Object ref-count */
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+	struct kref ref;
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+
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+	/** @dev: Device structure of bus-device */
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+	struct device *dev;
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+
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+	/**
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+	 * @managed:
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+	 *
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+	 * Managed resources linked to the lifetime of this &drm_device as
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+	 * tracked by @ref.
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+	 */
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+	struct {
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+		/** @managed.resources: managed resources list */
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+		struct list_head resources;
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+		/** @managed.final_kfree: pointer for final kfree() call */
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+		void *final_kfree;
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+		/** @managed.lock: protects @managed.resources */
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+		spinlock_t lock;
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+	} managed;
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+
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+	/** @driver: DRM driver managing the device */
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+	struct drm_driver *driver;
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+
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+	/**
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+	 * @dev_private:
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+	 *
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+	 * DRM driver private data. This is deprecated and should be left set to
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+	 * NULL.
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+	 *
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+	 * Instead of using this pointer it is recommended that drivers use
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+	 * devm_drm_dev_alloc() and embed struct &drm_device in their larger
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+	 * per-device structure.
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+	 */
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+	void *dev_private;
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+
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+	/** @primary: Primary node */
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+	struct drm_minor *primary;
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+
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+	/** @render: Render node */
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+	struct drm_minor *render;
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+
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+	/**
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+	 * @registered:
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+	 *
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+	 * Internally used by drm_dev_register() and drm_connector_register().
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+	 */
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 	bool registered;
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-	/* currently active master for this device. Protected by master_mutex */
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+	/**
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+	 * @master:
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+	 *
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+	 * Currently active master for this device.
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+	 * Protected by &master_mutex
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+	 */
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 	struct drm_master *master;
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+
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+	/**
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+	 * @driver_features: per-device driver features
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+	 *
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+	 * Drivers can clear specific flags here to disallow
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+	 * certain features on a per-device basis while still
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+	 * sharing a single &struct drm_driver instance across
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+	 * all devices.
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+	 */
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+	u32 driver_features;
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 	/**
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 	 * @unplugged:
..
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@@ -53,75 +136,67 @@
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 	 */
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 	bool unplugged;
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-	struct inode *anon_inode;		/**< inode for private address-space */
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-	char *unique;				/**< unique name of the device */
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-	/*@} */
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+	/** @anon_inode: inode for private address-space */
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+	struct inode *anon_inode;
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-	/** \name Locks */
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-	/*@{ */
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-	struct mutex struct_mutex;	/**< For others */
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-	struct mutex master_mutex;      /**< For drm_minor::master and drm_file::is_master */
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-	/*@} */
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+	/** @unique: Unique name of the device */
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+	char *unique;
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-	/** \name Usage Counters */
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-	/*@{ */
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-	int open_count;			/**< Outstanding files open, protected by drm_global_mutex. */
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-	spinlock_t buf_lock;		/**< For drm_device::buf_use and a few other things. */
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-	int buf_use;			/**< Buffers in use -- cannot alloc */
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-	atomic_t buf_alloc;		/**< Buffer allocation in progress */
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-	/*@} */
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+	/**
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+	 * @struct_mutex:
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+	 *
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+	 * Lock for others (not &drm_minor.master and &drm_file.is_master)
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+	 *
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+	 * WARNING:
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+	 * Only drivers annotated with DRIVER_LEGACY should be using this.
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+	 */
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+	struct mutex struct_mutex;
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+	/**
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+	 * @master_mutex:
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+	 *
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+	 * Lock for &drm_minor.master and &drm_file.is_master
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+	 */
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+	struct mutex master_mutex;
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+
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+	/**
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+	 * @open_count:
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+	 *
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+	 * Usage counter for outstanding files open,
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+	 * protected by drm_global_mutex
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+	 */
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+	atomic_t open_count;
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+
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+	/** @filelist_mutex: Protects @filelist. */
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 	struct mutex filelist_mutex;
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+	/**
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+	 * @filelist:
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+	 *
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+	 * List of userspace clients, linked through &drm_file.lhead.
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+	 */
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 	struct list_head filelist;
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 	/**
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 	 * @filelist_internal:
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 	 *
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-	 * List of open DRM files for in-kernel clients. Protected by @filelist_mutex.
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+	 * List of open DRM files for in-kernel clients.
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+	 * Protected by &filelist_mutex.
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 	 */
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 	struct list_head filelist_internal;
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 	/**
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 	 * @clientlist_mutex:
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 	 *
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-	 * Protects @clientlist access.
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+	 * Protects &clientlist access.
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 	 */
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 	struct mutex clientlist_mutex;
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 	/**
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 	 * @clientlist:
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 	 *
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-	 * List of in-kernel clients. Protected by @clientlist_mutex.
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+	 * List of in-kernel clients. Protected by &clientlist_mutex.
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 	 */
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 	struct list_head clientlist;
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-
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-	/** \name Memory management */
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-	/*@{ */
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-	struct list_head maplist;	/**< Linked list of regions */
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-	struct drm_open_hash map_hash;	/**< User token hash table for maps */
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-
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-	/** \name Context handle management */
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-	/*@{ */
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-	struct list_head ctxlist;	/**< Linked list of context handles */
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-	struct mutex ctxlist_mutex;	/**< For ctxlist */
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-
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-	struct idr ctx_idr;
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-
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-	struct list_head vmalist;	/**< List of vmas (for debugging) */
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-
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-	/*@} */
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-
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-	/** \name DMA support */
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-	/*@{ */
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-	struct drm_device_dma *dma;		/**< Optional pointer for DMA support */
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-	/*@} */
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-
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-	/** \name Context support */
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-	/*@{ */
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-
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-	__volatile__ long context_flag;	/**< Context swapping flag */
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-	int last_context;		/**< Last current context */
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-	/*@} */
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 	/**
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 	 * @irq_enabled:
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@@ -131,6 +206,10 @@
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 	 * to true manually.
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 	 */
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 	bool irq_enabled;
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+
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+	/**
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+	 * @irq: Used by the drm_irq_install() and drm_irq_unistall() helpers.
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+	 */
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 	int irq;
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 	/**
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@@ -158,7 +237,16 @@
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 	 */
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 	struct drm_vblank_crtc *vblank;
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-	spinlock_t vblank_time_lock;    /**< Protects vblank count and time updates during vblank enable/disable */
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+	/**
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+	 * @vblank_time_lock:
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+	 *
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+	 *  Protects vblank count and time updates during vblank enable/disable
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+	 */
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+	spinlock_t vblank_time_lock;
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+	/**
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+	 * @vbl_lock: Top-level vblank references lock, wraps the low-level
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+	 * @vblank_time_lock.
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+	 */
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 	spinlock_t vbl_lock;
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 	/**
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@@ -182,25 +270,103 @@
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 	 *
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 	 * If non-zero, &drm_crtc_funcs.get_vblank_counter must be set.
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 	 */
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-	u32 max_vblank_count;           /**< size of vblank counter register */
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+	u32 max_vblank_count;
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+
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+	/** @vblank_event_list: List of vblank events */
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+	struct list_head vblank_event_list;
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 	/**
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-	 * List of events
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+	 * @event_lock:
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+	 *
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+	 * Protects @vblank_event_list and event delivery in
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+	 * general. See drm_send_event() and drm_send_event_locked().
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 	 */
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-	struct list_head vblank_event_list;
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 	spinlock_t event_lock;
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-	/*@} */
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+	/** @agp: AGP data */
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+	struct drm_agp_head *agp;
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-	struct drm_agp_head *agp;	/**< AGP data */
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+	/** @pdev: PCI device structure */
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+	struct pci_dev *pdev;
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-	struct pci_dev *pdev;		/**< PCI device structure */
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 #ifdef __alpha__
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+	/** @hose: PCI hose, only used on ALPHA platforms. */
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 	struct pci_controller *hose;
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 #endif
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+	/** @num_crtcs: Number of CRTCs on this device */
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+	unsigned int num_crtcs;
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-	struct drm_sg_mem *sg;	/**< Scatter gather memory */
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-	unsigned int num_crtcs;                  /**< Number of CRTCs on this device */
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+	/** @mode_config: Current mode config */
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+	struct drm_mode_config mode_config;
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+
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+	/** @object_name_lock: GEM information */
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+	struct mutex object_name_lock;
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+
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+	/** @object_name_idr: GEM information */
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+	struct idr object_name_idr;
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+
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+	/** @vma_offset_manager: GEM information */
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+	struct drm_vma_offset_manager *vma_offset_manager;
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+
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+	/** @vram_mm: VRAM MM memory manager */
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+	struct drm_vram_mm *vram_mm;
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+
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+	/**
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+	 * @switch_power_state:
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+	 *
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+	 * Power state of the client.
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+	 * Used by drivers supporting the switcheroo driver.
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+	 * The state is maintained in the
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+	 * &vga_switcheroo_client_ops.set_gpu_state callback
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+	 */
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+	enum switch_power_state switch_power_state;
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+
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+	/**
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+	 * @fb_helper:
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+	 *
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+	 * Pointer to the fbdev emulation structure.
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+	 * Set by drm_fb_helper_init() and cleared by drm_fb_helper_fini().
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+	 */
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+	struct drm_fb_helper *fb_helper;
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+
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+	/* Everything below here is for legacy driver, never use! */
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+	/* private: */
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+#if IS_ENABLED(CONFIG_DRM_LEGACY)
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+	/* Context handle management - linked list of context handles */
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+	struct list_head ctxlist;
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+
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+	/* Context handle management - mutex for &ctxlist */
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+	struct mutex ctxlist_mutex;
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+
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+	/* Context handle management */
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+	struct idr ctx_idr;
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+
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+	/* Memory management - linked list of regions */
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+	struct list_head maplist;
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+
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+	/* Memory management - user token hash table for maps */
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+	struct drm_open_hash map_hash;
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+
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+	/* Context handle management - list of vmas (for debugging) */
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+	struct list_head vmalist;
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+
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+	/* Optional pointer for DMA support */
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+	struct drm_device_dma *dma;
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+
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+	/* Context swapping flag */
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+	__volatile__ long context_flag;
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+
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+	/* Last current context */
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+	int last_context;
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+
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+	/* Lock for &buf_use and a few other things. */
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+	spinlock_t buf_lock;
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+
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+	/* Usage counter for buffers in use -- cannot alloc */
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+	int buf_use;
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+
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+	/* Buffer allocation in progress */
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+	atomic_t buf_alloc;
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 	struct {
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 		int context;
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@@ -210,23 +376,9 @@
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 	struct drm_local_map *agp_buffer_map;
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 	unsigned int agp_buffer_token;
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-	struct drm_mode_config mode_config;	/**< Current mode config */
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-
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-	/** \name GEM information */
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-	/*@{ */
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-	struct mutex object_name_lock;
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-	struct idr object_name_idr;
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-	struct drm_vma_offset_manager *vma_offset_manager;
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-	/*@} */
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-	int switch_power_state;
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-
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-	/**
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-	 * @fb_helper:
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-	 *
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-	 * Pointer to the fbdev emulation structure.
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-	 * Set by drm_fb_helper_init() and cleared by drm_fb_helper_fini().
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-	 */
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-	struct drm_fb_helper *fb_helper;
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+	/* Scatter gather memory */
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+	struct drm_sg_mem *sg;
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+#endif
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 };
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 #endif