815 struct drm_device {  struct
822 	spinlock_t count_lock;		/**< For inuse, drm_device::open_count, drm_device::buf_use */  argument
823 	struct mutex struct_mutex;	/**< For others */
828 	int open_count;			/**< Outstanding files open */
829 	atomic_t ioctl_count;		/**< Outstanding IOCTLs pending */
830 	atomic_t vma_count;		/**< Outstanding vma areas open */
831 	int buf_use;			/**< Buffers in use -- cannot alloc */
832 	atomic_t buf_alloc;		/**< Buffer allocation in progress */
837 	unsigned long counters;
838 	enum drm_stat_type types[15];
839 	atomic_t counts[15];
842 	struct list_head filelist;
868 	struct drm_device_dma *dma;		/**< Optional pointer for DMA support */  argument
873 	int irq_enabled;		/**< True if irq handler is enabled */
874 	__volatile__ long context_flag;	/**< Context swapping flag */
875 	__volatile__ long interrupt_flag; /**< Interruption handler flag */
876 	__volatile__ long dma_flag;	/**< DMA dispatch flag */
877 	struct timer_list timer;	/**< Timer for delaying ctx switch */
878 	wait_queue_head_t context_wait;	/**< Processes waiting on ctx switch */
879 	int last_checked;		/**< Last context checked for DMA */
880 	int last_context;		/**< Last current context */
881 	unsigned long last_switch;	/**< jiffies at last context switch */
884 	struct work_struct work;
894 	int vblank_disable_allowed;
896 	wait_queue_head_t *vbl_queue;   /**< VBLANK wait queue */
897 …_count;        /**< number of VBLANK interrupts (driver must alloc the right number of counters) */
898 	spinlock_t vbl_lock;
899 	atomic_t *vblank_refcount;      /* number of users of vblank interruptsper crtc */
900 	u32 *last_vblank;               /* protected by dev->vbl_lock, used */
902 	int *vblank_enabled;            /* so we don't call enable more than
904 	int *vblank_inmodeset;          /* Display driver is setting mode */
905 	u32 *last_vblank_wait;		/* Last vblank seqno waited per CRTC */
906 	struct timer_list vblank_disable_timer;
908 	u32 max_vblank_count;           /**< size of vblank counter register */
911 	cycles_t ctx_start;
912 	cycles_t lck_start;
914 	struct fasync_struct *buf_async;/**< Processes waiting for SIGIO */
915 	wait_queue_head_t buf_readers;	/**< Processes waiting to read */
916 	wait_queue_head_t buf_writers;	/**< Processes waiting to ctx switch */
918 	struct drm_agp_head *agp;	/**< AGP data */
920 	struct pci_dev *pdev;		/**< PCI device structure */
921 	int pci_vendor;			/**< PCI vendor id */
922 	int pci_device;			/**< PCI device id */
924 	struct pci_controller *hose;
926 	struct drm_sg_mem *sg;	/**< Scatter gather memory */
927 	int num_crtcs;                  /**< Number of CRTCs on this device */
928 	void *dev_private;		/**< device private data */
929 	void *mm_private;
930 	struct address_space *dev_mapping;
931 	struct drm_sigdata sigdata;	   /**< For block_all_signals */
932 	sigset_t sigmask;
934 	struct drm_driver *driver;
935 	drm_local_map_t *agp_buffer_map;
936 	unsigned int agp_buffer_token;
937 	struct drm_minor *control;		/**< Control node for card */
938 	struct drm_minor *primary;		/**< render type primary screen head */
965 static inline int drm_dev_to_irq(struct drm_device *dev)  in drm_dev_to_irq()  argument