WebSVN – Kolibri OS – Diff – /drivers/include/drm/drmP.h


/**
 * \file drmP.h
 * Private header for Direct Rendering Manager
 *
 * \author Rickard E. (Rik) Faith 
 * \author Gareth Hughes 
 */
 
/*
 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
 * Copyright (c) 2009-2010, Code Aurora Forum.
 * All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */
 
#ifndef _DRM_P_H_
#define _DRM_P_H_
 
#define iowrite32(v, addr)      writel((v), (addr))
 
#ifdef __KERNEL__
#ifdef __alpha__
/* add include of current.h so that "current" is defined
 * before static inline funcs in wait.h. Doing this so we
 * can build the DRM (part of PI DRI). 4/21/2000 S + B */
#include 
#endif				/* __alpha__ */
 
#include 
 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
 
#include 
#include 
 
//#include 
//#include 
//#include 
//#include 
#include 
#include 
#include 
//#include     /* For (un)lock_kernel */
//#include 
//#include 
//#include 
#include 
//#include 
//#include 
//#include 
//#include 
//#include 
//#include 
 
#include 
 
 
#include "drm.h"
 
#include 
 
#define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE)))
#define __OS_HAS_MTRR (defined(CONFIG_MTRR))
 
struct module;
 
struct drm_file;
struct drm_device;
 
struct device_node;
struct videomode;
//#include 
#include 
#include 
 
#define KHZ2PICOS(a) (1000000000UL/(a))
 
/* get_scanout_position() return flags */
#define DRM_SCANOUTPOS_VALID        (1 << 0)
#define DRM_SCANOUTPOS_INVBL        (1 << 1)
#define DRM_SCANOUTPOS_ACCURATE     (1 << 2)
 
 
 
#define DRM_UT_CORE 		0x01
#define DRM_UT_DRIVER		0x02
#define DRM_UT_KMS          0x04
#define DRM_UT_PRIME		0x08
/*
 * Three debug levels are defined.
 * drm_core, drm_driver, drm_kms
 * drm_core level can be used in the generic drm code. For example:
 * 	drm_ioctl, drm_mm, drm_memory
 * The macro definition of DRM_DEBUG is used.
 * 	DRM_DEBUG(fmt, args...)
 * 	The debug info by using the DRM_DEBUG can be obtained by adding
 * 	the boot option of "drm.debug=1".
 *
 * drm_driver level can be used in the specific drm driver. It is used
 * to add the debug info related with the drm driver. For example:
 * i915_drv, i915_dma, i915_gem, radeon_drv,
 * 	The macro definition of DRM_DEBUG_DRIVER can be used.
 * 	DRM_DEBUG_DRIVER(fmt, args...)
 * 	The debug info by using the DRM_DEBUG_DRIVER can be obtained by
 * 	adding the boot option of "drm.debug=0x02"
 *
 * drm_kms level can be used in the KMS code related with specific drm driver.
 * It is used to add the debug info related with KMS mode. For example:
 * the connector/crtc ,
 * 	The macro definition of DRM_DEBUG_KMS can be used.
 * 	DRM_DEBUG_KMS(fmt, args...)
 * 	The debug info by using the DRM_DEBUG_KMS can be obtained by
 * 	adding the boot option of "drm.debug=0x04"
 *
 * If we add the boot option of "drm.debug=0x06", we can get the debug info by
 * using the DRM_DEBUG_KMS and DRM_DEBUG_DRIVER.
 * If we add the boot option of "drm.debug=0x05", we can get the debug info by
 * using the DRM_DEBUG_KMS and DRM_DEBUG.
 */
 
extern __printf(4, 5)
void drm_ut_debug_printk(unsigned int request_level,
				const char *prefix,
				const char *function_name,
				const char *format, ...);
extern __printf(2, 3)
int drm_err(const char *func, const char *format, ...);
 
/***********************************************************************/
/** \name DRM template customization defaults */
/*@{*/
 
/* driver capabilities and requirements mask */
#define DRIVER_USE_AGP     0x1
#define DRIVER_REQUIRE_AGP 0x2
#define DRIVER_USE_MTRR    0x4
#define DRIVER_PCI_DMA     0x8
#define DRIVER_SG          0x10
#define DRIVER_HAVE_DMA    0x20
#define DRIVER_HAVE_IRQ    0x40
#define DRIVER_IRQ_SHARED  0x80
#define DRIVER_IRQ_VBL     0x100
#define DRIVER_DMA_QUEUE   0x200
#define DRIVER_FB_DMA      0x400
#define DRIVER_IRQ_VBL2    0x800
#define DRIVER_GEM         0x1000
#define DRIVER_MODESET     0x2000
#define DRIVER_PRIME       0x4000
 
#define DRIVER_BUS_PCI 0x1
#define DRIVER_BUS_PLATFORM 0x2
#define DRIVER_BUS_USB 0x3
 
/***********************************************************************/
/** \name Begin the DRM... */
/*@{*/
 
#define DRM_DEBUG_CODE 2	  /**< Include debugging code if > 1, then
				     also include looping detection. */
 
#define DRM_MAGIC_HASH_ORDER  4  /**< Size of key hash table. Must be power of 2. */
#define DRM_KERNEL_CONTEXT    0	 /**< Change drm_resctx if changed */
#define DRM_RESERVED_CONTEXTS 1	 /**< Change drm_resctx if changed */
#define DRM_LOOPING_LIMIT     5000000
#define DRM_TIME_SLICE	      (HZ/20)  /**< Time slice for GLXContexts */
#define DRM_LOCK_SLICE	      1	/**< Time slice for lock, in jiffies */
 
#define DRM_FLAG_DEBUG	  0x01
 
#define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
#define DRM_MAP_HASH_OFFSET 0x10000000
 
/*@}*/
 
/***********************************************************************/
/** \name Macros to make printk easier */
/*@{*/
 
/**
 * Error output.
 *
 * \param fmt printf() like format string.
 * \param arg arguments
 */
#define DRM_ERROR(fmt, ...)				\
	drm_err(__func__, fmt, ##__VA_ARGS__)
 
#define DRM_INFO(fmt, ...)				\
	printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__)
 
/**
 * Debug output.
 *
 * \param fmt printf() like format string.
 * \param arg arguments
 */
#if DRM_DEBUG_CODE
#define DRM_DEBUG(fmt, ...)                                 \
    do {                                                    \
    printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__);  \
	} while (0)
 
#define DRM_DEBUG_DRIVER(fmt, ...)                          \
    do {                                                    \
    printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__);  \
	} while (0)
#define DRM_DEBUG_KMS(fmt, ...)              \
	do {								\
    printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__);  \
	} while (0)
#define DRM_DEBUG_PRIME(fmt, ...)                    \
	do {								\
    printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__);  \
	} while (0)
#define DRM_LOG(fmt, ...)                        \
	do {								\
    printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__);  \
	} while (0)
#define DRM_LOG_KMS(fmt, ...)                    \
	do {								\
    printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__);  \
	} while (0)
#define DRM_LOG_MODE(fmt, ...)                   \
	do {								\
    printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__);  \
	} while (0)
#define DRM_LOG_DRIVER(fmt, ...)                 \
	do {								\
    printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__);  \
	} while (0)
#else
#define DRM_DEBUG_DRIVER(fmt, args...) do { } while (0)
#define DRM_DEBUG_KMS(fmt, args...)	do { } while (0)
#define DRM_DEBUG_PRIME(fmt, args...)	do { } while (0)
#define DRM_DEBUG(fmt, arg...)		 do { } while (0)
#define DRM_LOG(fmt, arg...)		do { } while (0)
#define DRM_LOG_KMS(fmt, args...) do { } while (0)
#define DRM_LOG_MODE(fmt, arg...) do { } while (0)
#define DRM_LOG_DRIVER(fmt, arg...) do { } while (0)
 
#endif
 
/*@}*/
 
/***********************************************************************/
/** \name Internal types and structures */
/*@{*/
 
#define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x)
 
#define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
#define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
 
#define DRM_IF_VERSION(maj, min) (maj << 16 | min)
 
/**
 * Test that the hardware lock is held by the caller, returning otherwise.
 *
 * \param dev DRM device.
 * \param filp file pointer of the caller.
 */
#define LOCK_TEST_WITH_RETURN( dev, _file_priv )				\
do {										\
	if (!_DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock) ||	\
	    _file_priv->master->lock.file_priv != _file_priv)	{		\
		DRM_ERROR( "%s called without lock held, held  %d owner %p %p\n",\
			   __func__, _DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock),\
			   _file_priv->master->lock.file_priv, _file_priv);	\
		return -EINVAL;							\
	}									\
} while (0)
 
#if 0
/**
 * Ioctl function type.
 *
 * \param inode device inode.
 * \param file_priv DRM file private pointer.
 * \param cmd command.
 * \param arg argument.
 */
typedef int drm_ioctl_t(struct drm_device *dev, void *data,
			struct drm_file *file_priv);
 
typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
			       unsigned long arg);
 
#define DRM_IOCTL_NR(n)                _IOC_NR(n)
#define DRM_MAJOR       226
 
#define DRM_AUTH	0x1
#define	DRM_MASTER	0x2
#define DRM_ROOT_ONLY	0x4
#define DRM_CONTROL_ALLOW 0x8
#define DRM_UNLOCKED	0x10
 
struct drm_ioctl_desc {
	unsigned int cmd;
	int flags;
	drm_ioctl_t *func;
	unsigned int cmd_drv;
	const char *name;
};
 
/**
 * Creates a driver or general drm_ioctl_desc array entry for the given
 * ioctl, for use by drm_ioctl().
 */
 
#define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags)			\
	[DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl, .name = #ioctl}
 
struct drm_magic_entry {
	struct list_head head;
	struct drm_hash_item hash_item;
	struct drm_file *priv;
};
 
struct drm_vma_entry {
	struct list_head head;
	struct vm_area_struct *vma;
	pid_t pid;
};
 
/**
 * DMA buffer.
 */
struct drm_buf {
	int idx;		       /**< Index into master buflist */
	int total;		       /**< Buffer size */
	int order;		       /**< log-base-2(total) */
	int used;		       /**< Amount of buffer in use (for DMA) */
	unsigned long offset;	       /**< Byte offset (used internally) */
	void *address;		       /**< Address of buffer */
	unsigned long bus_address;     /**< Bus address of buffer */
	struct drm_buf *next;	       /**< Kernel-only: used for free list */
	__volatile__ int waiting;      /**< On kernel DMA queue */
	__volatile__ int pending;      /**< On hardware DMA queue */
	struct drm_file *file_priv;    /**< Private of holding file descr */
	int context;		       /**< Kernel queue for this buffer */
	int while_locked;	       /**< Dispatch this buffer while locked */
	enum {
		DRM_LIST_NONE = 0,
		DRM_LIST_FREE = 1,
		DRM_LIST_WAIT = 2,
		DRM_LIST_PEND = 3,
		DRM_LIST_PRIO = 4,
		DRM_LIST_RECLAIM = 5
	} list;			       /**< Which list we're on */
 
	int dev_priv_size;		 /**< Size of buffer private storage */
	void *dev_private;		 /**< Per-buffer private storage */
};
 
/** bufs is one longer than it has to be */
struct drm_waitlist {
	int count;			/**< Number of possible buffers */
	struct drm_buf **bufs;		/**< List of pointers to buffers */
	struct drm_buf **rp;			/**< Read pointer */
	struct drm_buf **wp;			/**< Write pointer */
	struct drm_buf **end;		/**< End pointer */
	spinlock_t read_lock;
	spinlock_t write_lock;
};
 
struct drm_freelist {
	int initialized;	       /**< Freelist in use */
	atomic_t count;		       /**< Number of free buffers */
	struct drm_buf *next;	       /**< End pointer */
 
	wait_queue_head_t waiting;     /**< Processes waiting on free bufs */
	int low_mark;		       /**< Low water mark */
	int high_mark;		       /**< High water mark */
	atomic_t wfh;		       /**< If waiting for high mark */
	spinlock_t lock;
};
#endif
 
typedef struct drm_dma_handle {
	dma_addr_t busaddr;
	void *vaddr;
	size_t size;
} drm_dma_handle_t;
 
#if 0
/**
 * Buffer entry.  There is one of this for each buffer size order.
 */
struct drm_buf_entry {
	int buf_size;			/**< size */
	int buf_count;			/**< number of buffers */
	struct drm_buf *buflist;		/**< buffer list */
	int seg_count;
	int page_order;
	struct drm_dma_handle **seglist;
 
	struct drm_freelist freelist;
};
 
/* Event queued up for userspace to read */
struct drm_pending_event {
	struct drm_event *event;
	struct list_head link;
	struct drm_file *file_priv;
	pid_t pid; /* pid of requester, no guarantee it's valid by the time
		      we deliver the event, for tracing only */
	void (*destroy)(struct drm_pending_event *event);
};
 
/* initial implementaton using a linked list - todo hashtab */
struct drm_prime_file_private {
	struct list_head head;
	struct mutex lock;
};
#endif
 
/** File private data */
struct drm_file {
	struct list_head lhead;
	unsigned long lock_count;
 
	/** Mapping of mm object handles to object pointers. */
	struct idr object_idr;
	/** Lock for synchronization of access to object_idr. */
	spinlock_t table_lock;
 
	void *driver_priv;
 
	struct list_head fbs;
 
	wait_queue_head_t event_wait;
	struct list_head event_list;
	int event_space;
};
 
#if 0
/** Wait queue */
struct drm_queue {
	atomic_t use_count;		/**< Outstanding uses (+1) */
	atomic_t finalization;		/**< Finalization in progress */
	atomic_t block_count;		/**< Count of processes waiting */
	atomic_t block_read;		/**< Queue blocked for reads */
	wait_queue_head_t read_queue;	/**< Processes waiting on block_read */
	atomic_t block_write;		/**< Queue blocked for writes */
	wait_queue_head_t write_queue;	/**< Processes waiting on block_write */
	atomic_t total_queued;		/**< Total queued statistic */
	atomic_t total_flushed;		/**< Total flushes statistic */
	atomic_t total_locks;		/**< Total locks statistics */
	enum drm_ctx_flags flags;	/**< Context preserving and 2D-only */
	struct drm_waitlist waitlist;	/**< Pending buffers */
	wait_queue_head_t flush_queue;	/**< Processes waiting until flush */
};
 
/**
 * Lock data.
 */
struct drm_lock_data {
	struct drm_hw_lock *hw_lock;	/**< Hardware lock */
	/** Private of lock holder's file (NULL=kernel) */
	struct drm_file *file_priv;
	wait_queue_head_t lock_queue;	/**< Queue of blocked processes */
	unsigned long lock_time;	/**< Time of last lock in jiffies */
	spinlock_t spinlock;
	uint32_t kernel_waiters;
	uint32_t user_waiters;
	int idle_has_lock;
};
 
/**
 * DMA data.
 */
struct drm_device_dma {
 
	struct drm_buf_entry bufs[DRM_MAX_ORDER + 1];	/**< buffers, grouped by their size order */
	int buf_count;			/**< total number of buffers */
	struct drm_buf **buflist;		/**< Vector of pointers into drm_device_dma::bufs */
	int seg_count;
	int page_count;			/**< number of pages */
	unsigned long *pagelist;	/**< page list */
	unsigned long byte_count;
	enum {
		_DRM_DMA_USE_AGP = 0x01,
		_DRM_DMA_USE_SG = 0x02,
		_DRM_DMA_USE_FB = 0x04,
		_DRM_DMA_USE_PCI_RO = 0x08
	} flags;
 
};
 
/**
 * AGP memory entry.  Stored as a doubly linked list.
 */
struct drm_agp_mem {
	unsigned long handle;		/**< handle */
	DRM_AGP_MEM *memory;
	unsigned long bound;		/**< address */
	int pages;
	struct list_head head;
};
 
/**
 * AGP data.
 *
 * \sa drm_agp_init() and drm_device::agp.
 */
struct drm_agp_head {
	DRM_AGP_KERN agp_info;		/**< AGP device information */
	struct list_head memory;
	unsigned long mode;		/**< AGP mode */
	struct agp_bridge_data *bridge;
	int enabled;			/**< whether the AGP bus as been enabled */
	int acquired;			/**< whether the AGP device has been acquired */
	unsigned long base;
	int agp_mtrr;
	int cant_use_aperture;
	unsigned long page_mask;
};
 
/**
 * Scatter-gather memory.
 */
struct drm_sg_mem {
	unsigned long handle;
	void *virtual;
	int pages;
	struct page **pagelist;
	dma_addr_t *busaddr;
};
 
struct drm_sigdata {
	int context;
	struct drm_hw_lock *lock;
};
 
#endif
 
 
/**
 * Kernel side of a mapping
 */
struct drm_local_map {
	resource_size_t offset;	 /**< Requested physical address (0 for SAREA)*/
	unsigned long size;	 /**< Requested physical size (bytes) */
	enum drm_map_type type;	 /**< Type of memory to map */
	enum drm_map_flags flags;	 /**< Flags */
	void *handle;		 /**< User-space: "Handle" to pass to mmap() */
				 /**< Kernel-space: kernel-virtual address */
	int mtrr;		 /**< MTRR slot used */
};
 
typedef struct drm_local_map drm_local_map_t;
 
#if 0
/**
 * Mappings list
 */
struct drm_map_list {
	struct list_head head;		/**< list head */
	struct drm_hash_item hash;
	struct drm_local_map *map;	/**< mapping */
	uint64_t user_token;
	struct drm_master *master;
	struct drm_mm_node *file_offset_node;	/**< fake offset */
};
 
/**
 * Context handle list
 */
struct drm_ctx_list {
	struct list_head head;		/**< list head */
	drm_context_t handle;		/**< context handle */
	struct drm_file *tag;		/**< associated fd private data */
};
 
/* location of GART table */
#define DRM_ATI_GART_MAIN 1
#define DRM_ATI_GART_FB   2
 
#define DRM_ATI_GART_PCI 1
#define DRM_ATI_GART_PCIE 2
#define DRM_ATI_GART_IGP 3
 
struct drm_ati_pcigart_info {
	int gart_table_location;
	int gart_reg_if;
	void *addr;
	dma_addr_t bus_addr;
	dma_addr_t table_mask;
	struct drm_dma_handle *table_handle;
	struct drm_local_map mapping;
	int table_size;
};
 
/**
 * GEM specific mm private for tracking GEM objects
 */
struct drm_gem_mm {
	struct drm_mm offset_manager;	/**< Offset mgmt for buffer objects */
	struct drm_open_hash offset_hash; /**< User token hash table for maps */
};
 
#endif
 
/**
 * This structure defines the drm_mm memory object, which will be used by the
 * DRM for its buffer objects.
 */
struct drm_gem_object {
	/** Reference count of this object */
	struct kref refcount;
 
	/** Handle count of this object. Each handle also holds a reference */
	atomic_t handle_count; /* number of handles on this object */
 
	/** Related drm device */
	struct drm_device *dev;
 
	/** File representing the shmem storage */
	struct file *filp;
 
	/* Mapping info for this object */
 
	/**
	 * Size of the object, in bytes.  Immutable over the object's
	 * lifetime.
	 */
	size_t size;
 
	/**
	 * Global name for this object, starts at 1. 0 means unnamed.
	 * Access is covered by the object_name_lock in the related drm_device
	 */
	int name;
 
	/**
	 * Memory domains. These monitor which caches contain read/write data
	 * related to the object. When transitioning from one set of domains
	 * to another, the driver is called to ensure that caches are suitably
	 * flushed and invalidated
	 */
	uint32_t read_domains;
	uint32_t write_domain;
 
	/**
	 * While validating an exec operation, the
	 * new read/write domain values are computed here.
	 * They will be transferred to the above values
	 * at the point that any cache flushing occurs
	 */
	uint32_t pending_read_domains;
	uint32_t pending_write_domain;
 
	void *driver_private;
};
 
#include 
 
/* per-master structure */
struct drm_master {
 
	struct kref refcount; /* refcount for this master */
 
	struct list_head head; /**< each minor contains a list of masters */
	struct drm_minor *minor; /**< link back to minor we are a master for */
 
	char *unique;			/**< Unique identifier: e.g., busid */
	int unique_len;			/**< Length of unique field */
	int unique_size;		/**< amount allocated */
 
	int blocked;			/**< Blocked due to VC switch? */
 
	/** \name Authentication */
	/*@{ */
//   struct drm_open_hash magiclist;
//   struct list_head magicfree;
	/*@} */
 
//   struct drm_lock_data lock;  /**< Information on hardware lock */
 
	void *driver_priv; /**< Private structure for driver to use */
};
 
#if 0
 
/* Size of ringbuffer for vblank timestamps. Just double-buffer
 * in initial implementation.
 */
#define DRM_VBLANKTIME_RBSIZE 2
 
/* Flags and return codes for get_vblank_timestamp() driver function. */
#define DRM_CALLED_FROM_VBLIRQ 1
#define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0)
#define DRM_VBLANKTIME_INVBL             (1 << 1)
 
/* get_scanout_position() return flags */
#define DRM_SCANOUTPOS_VALID        (1 << 0)
#define DRM_SCANOUTPOS_INVBL        (1 << 1)
#define DRM_SCANOUTPOS_ACCURATE     (1 << 2)
 
struct drm_bus {
	int bus_type;
	int (*get_irq)(struct drm_device *dev);
	const char *(*get_name)(struct drm_device *dev);
	int (*set_busid)(struct drm_device *dev, struct drm_master *master);
	int (*set_unique)(struct drm_device *dev, struct drm_master *master,
			  struct drm_unique *unique);
	int (*irq_by_busid)(struct drm_device *dev, struct drm_irq_busid *p);
	/* hooks that are for PCI */
	int (*agp_init)(struct drm_device *dev);
 
};
 
/**
 * DRM driver structure. This structure represent the common code for
 * a family of cards. There will one drm_device for each card present
 * in this family
 */
struct drm_driver {
	int (*load) (struct drm_device *, unsigned long flags);
	int (*firstopen) (struct drm_device *);
	int (*open) (struct drm_device *, struct drm_file *);
	void (*preclose) (struct drm_device *, struct drm_file *file_priv);
	void (*postclose) (struct drm_device *, struct drm_file *);
	void (*lastclose) (struct drm_device *);
	int (*unload) (struct drm_device *);
	int (*suspend) (struct drm_device *, pm_message_t state);
	int (*resume) (struct drm_device *);
	int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv);
	int (*dma_quiescent) (struct drm_device *);
	int (*context_dtor) (struct drm_device *dev, int context);
 
	/**
	 * get_vblank_counter - get raw hardware vblank counter
	 * @dev: DRM device
	 * @crtc: 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
	 * return the value of drm_vblank_count. The DRM core will account for
	 * missed vblank events while interrupts where disabled based on system
	 * timestamps.
	 *
	 * Wraparound handling and loss of events due to modesetting is dealt
	 * with in the DRM core code.
	 *
	 * RETURNS
	 * Raw vblank counter value.
	 */
	u32 (*get_vblank_counter) (struct drm_device *dev, int crtc);
 
	/**
	 * enable_vblank - enable vblank interrupt events
	 * @dev: DRM device
	 * @crtc: 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
	 * interrupts will have to stay on to keep the count accurate.
	 *
	 * RETURNS
	 * Zero on success, appropriate errno if the given @crtc's vblank
	 * interrupt cannot be enabled.
	 */
	int (*enable_vblank) (struct drm_device *dev, int crtc);
 
	/**
	 * disable_vblank - disable vblank interrupt events
	 * @dev: DRM device
	 * @crtc: 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);
 
	/**
	 * Called by \c drm_device_is_agp.  Typically used to determine if a
	 * card is really attached to AGP or not.
	 *
	 * \param dev  DRM device handle
	 *
	 * \returns
	 * One of three values is returned depending on whether or not the
	 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
	 * (return of 1), or may or may not be AGP (return of 2).
	 */
	int (*device_is_agp) (struct drm_device *dev);
 
	/**
	 * Called by vblank timestamping code.
	 *
	 * Return the current display scanout position from a crtc.
	 *
	 * \param dev  DRM device.
	 * \param crtc Id of the crtc to query.
	 * \param *vpos Target location for current vertical scanout position.
	 * \param *hpos Target location for current horizontal scanout position.
	 *
	 * Returns vpos as a positive number while in active scanout area.
	 * Returns vpos as a negative number inside vblank, counting the number
	 * of scanlines to go until end of vblank, e.g., -1 means "one scanline
	 * until start of active scanout / end of vblank."
	 *
	 * \return Flags, or'ed together as follows:
	 *
	 * DRM_SCANOUTPOS_VALID = Query successful.
	 * DRM_SCANOUTPOS_INVBL = Inside vblank.
	 * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of
	 * this flag means that returned position may be offset by a constant
	 * but unknown small number of scanlines wrt. real scanout position.
	 *
	 */
	int (*get_scanout_position) (struct drm_device *dev, int crtc,
				     int *vpos, int *hpos);
 
	/**
	 * Called by \c drm_get_last_vbltimestamp. Should return a precise
	 * timestamp when the most recent VBLANK interval ended or will end.
	 *
	 * Specifically, the timestamp in @vblank_time should correspond as
	 * closely as possible to the time when the first video scanline of
	 * the video frame after the end of VBLANK will start scanning out,
	 * the time immediately after end of the VBLANK interval. If the
	 * @crtc is currently inside VBLANK, this will be a time in the future.
	 * If the @crtc is currently scanning out a frame, this will be the
	 * past start time of the current scanout. This is meant to adhere
	 * to the OpenML OML_sync_control extension specification.
	 *
	 * \param dev dev DRM device handle.
	 * \param crtc 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.
	 *                   Returns true upper bound on error for timestamp.
	 * \param *vblank_time Target location for returned vblank timestamp.
	 * \param flags 0 = Defaults, no special treatment needed.
	 * \param       DRM_CALLED_FROM_VBLIRQ = Function is called from vblank
	 *	        irq handler. Some drivers need to apply some workarounds
	 *              for gpu-specific vblank irq quirks if flag is set.
	 *
	 * \returns
	 * Zero if timestamping isn't supported in current display mode or a
	 * 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 *max_error,
				     struct timeval *vblank_time,
				     unsigned flags);
 
	/* these have to be filled in */
 
	irqreturn_t(*irq_handler) (DRM_IRQ_ARGS);
	void (*irq_preinstall) (struct drm_device *dev);
	int (*irq_postinstall) (struct drm_device *dev);
	void (*irq_uninstall) (struct drm_device *dev);
	void (*set_version) (struct drm_device *dev,
			     struct drm_set_version *sv);
 
	/* Master routines */
	int (*master_create)(struct drm_device *dev, struct drm_master *master);
	void (*master_destroy)(struct drm_device *dev, struct drm_master *master);
	/**
	 * master_set is called whenever the minor master is set.
	 * master_drop is called whenever the minor master is dropped.
	 */
 
	int (*master_set)(struct drm_device *dev, struct drm_file *file_priv,
			  bool from_open);
	void (*master_drop)(struct drm_device *dev, struct drm_file *file_priv,
			    bool from_release);
 
	int (*debugfs_init)(struct drm_minor *minor);
	void (*debugfs_cleanup)(struct drm_minor *minor);
 
	/**
	 * Driver-specific constructor for drm_gem_objects, to set up
	 * obj->driver_private.
	 *
	 * Returns 0 on success.
	 */
	int (*gem_init_object) (struct drm_gem_object *obj);
	void (*gem_free_object) (struct drm_gem_object *obj);
	int (*gem_open_object) (struct drm_gem_object *, struct drm_file *);
	void (*gem_close_object) (struct drm_gem_object *, struct drm_file *);
 
	/* prime: */
	/* export handle -> fd (see drm_gem_prime_handle_to_fd() helper) */
	int (*prime_handle_to_fd)(struct drm_device *dev, struct drm_file *file_priv,
				uint32_t handle, uint32_t flags, int *prime_fd);
	/* import fd -> handle (see drm_gem_prime_fd_to_handle() helper) */
	int (*prime_fd_to_handle)(struct drm_device *dev, struct drm_file *file_priv,
				int prime_fd, uint32_t *handle);
	/* export GEM -> dmabuf */
	struct dma_buf * (*gem_prime_export)(struct drm_device *dev,
				struct drm_gem_object *obj, int flags);
	/* import dmabuf -> GEM */
	struct drm_gem_object * (*gem_prime_import)(struct drm_device *dev,
				struct dma_buf *dma_buf);
 
	/* vga arb irq handler */
	void (*vgaarb_irq)(struct drm_device *dev, bool state);
 
	/* dumb alloc support */
	int (*dumb_create)(struct drm_file *file_priv,
			   struct drm_device *dev,
			   struct drm_mode_create_dumb *args);
	int (*dumb_map_offset)(struct drm_file *file_priv,
			       struct drm_device *dev, uint32_t handle,
			       uint64_t *offset);
	int (*dumb_destroy)(struct drm_file *file_priv,
			    struct drm_device *dev,
			    uint32_t handle);
 
	/* Driver private ops for this object */
	const struct vm_operations_struct *gem_vm_ops;
 
	int major;
	int minor;
	int patchlevel;
	char *name;
	char *desc;
	char *date;
 
	u32 driver_features;
	int dev_priv_size;
	struct drm_ioctl_desc *ioctls;
	int num_ioctls;
	const struct file_operations *fops;
	union {
		struct pci_driver *pci;
		struct platform_device *platform_device;
		struct usb_driver *usb;
	} kdriver;
	struct drm_bus *bus;
 
	/* List of devices hanging off this driver */
	struct list_head device_list;
};
 
#endif
 
#define DRM_IRQ_ARGS            int irq, void *arg 
 
struct drm_driver {
	int (*open) (struct drm_device *, struct drm_file *);
 
    irqreturn_t (*irq_handler) (DRM_IRQ_ARGS);
    void (*irq_preinstall) (struct drm_device *dev);
    int (*irq_postinstall) (struct drm_device *dev);
 
	int (*gem_init_object) (struct drm_gem_object *obj);
	void (*gem_free_object) (struct drm_gem_object *obj);
	int (*gem_open_object) (struct drm_gem_object *, struct drm_file *);
	void (*gem_close_object) (struct drm_gem_object *, struct drm_file *);
	u32 driver_features;
}; 
 
 
#define DRM_MINOR_UNASSIGNED 0
#define DRM_MINOR_LEGACY 1
#define DRM_MINOR_CONTROL 2
#define DRM_MINOR_RENDER 3
 
 
/**
 * debugfs node list. This structure represents a debugfs file to
 * be created by the drm core
 */
struct drm_debugfs_list {
	const char *name; /** file name */
//   int (*show)(struct seq_file*, void*); /** show callback */
	u32 driver_features; /**< Required driver features for this entry */
};
 
/**
 * debugfs node structure. This structure represents a debugfs file.
 */
struct drm_debugfs_node {
	struct list_head list;
	struct drm_minor *minor;
	struct drm_debugfs_list *debugfs_ent;
	struct dentry *dent;
};
 
/**
 * Info file list entry. This structure represents a debugfs or proc file to
 * be created by the drm core
 */
struct drm_info_list {
	const char *name; /** file name */
//   int (*show)(struct seq_file*, void*); /** show callback */
	u32 driver_features; /**< Required driver features for this entry */
	void *data;
};
 
/**
 * debugfs node structure. This structure represents a debugfs file.
 */
struct drm_info_node {
	struct list_head list;
	struct drm_minor *minor;
	struct drm_info_list *info_ent;
	struct dentry *dent;
};
 
/**
 * DRM minor structure. This structure represents a drm minor number.
 */
struct drm_minor {
	int index;			/**< Minor device number */
	int type;                       /**< Control or render */
//   dev_t device;           /**< Device number for mknod */
//   struct device kdev;     /**< Linux device */
	struct drm_device *dev;
 
//   struct proc_dir_entry *proc_root;  /**< proc directory entry */
//   struct drm_info_node proc_nodes;
//   struct dentry *debugfs_root;
//   struct drm_info_node debugfs_nodes;
 
    struct drm_master *master; /* currently active master for this node */
//   struct list_head master_list;
//   struct drm_mode_group mode_group;
};
 
/* mode specified on the command line */
struct drm_cmdline_mode {
	bool specified;
	bool refresh_specified;
	bool bpp_specified;
	int xres, yres;
	int bpp;
	int refresh;
	bool rb;
	bool interlace;
	bool cvt;
	bool margins;
	enum drm_connector_force force;
};
 
 
 
/**
 * DRM device structure. This structure represent a complete card that
 * may contain multiple heads.
 */
struct drm_device {
	struct list_head driver_item;	/**< list of devices per driver */
	char *devname;			/**< For /proc/interrupts */
	int if_version;			/**< Highest interface version set */
 
	/** \name Locks */
	/*@{ */
    spinlock_t count_lock;      /**< For inuse, drm_device::open_count, drm_device::buf_use */
	struct mutex struct_mutex;	/**< For others */
	/*@} */
 
	/** \name Usage Counters */
	/*@{ */
	int open_count;			/**< Outstanding files open */
   atomic_t ioctl_count;       /**< Outstanding IOCTLs pending */
   atomic_t vma_count;     /**< Outstanding vma areas open */
	int buf_use;			/**< Buffers in use -- cannot alloc */
   atomic_t buf_alloc;     /**< Buffer allocation in progress */
	/*@} */
 
	/** \name Performance counters */
	/*@{ */
	unsigned long counters;
//   enum drm_stat_type types[15];
   atomic_t counts[15];
	/*@} */
 
	struct list_head filelist;
 
	/** \name Memory management */
	/*@{ */
	struct list_head maplist;	/**< Linked list of regions */
	int map_count;			/**< Number of mappable regions */
//   struct drm_open_hash map_hash;  /**< User token hash table for maps */
 
	/** \name Context handle management */
	/*@{ */
	struct list_head ctxlist;	/**< Linked list of context handles */
	int ctx_count;			/**< Number of context handles */
	struct mutex ctxlist_mutex;	/**< For ctxlist */
 
	struct idr ctx_idr;
 
	struct list_head vmalist;	/**< List of vmas (for debugging) */
 
	/*@} */
 
	/** \name DMA support */
	/*@{ */
//   struct drm_device_dma *dma;     /**< Optional pointer for DMA support */
	/*@} */
 
	/** \name Context support */
	/*@{ */
	int irq_enabled;		/**< True if irq handler is enabled */
	__volatile__ long context_flag;	/**< Context swapping flag */
	__volatile__ long interrupt_flag; /**< Interruption handler flag */
	__volatile__ long dma_flag;	/**< DMA dispatch flag */
//   wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */
	int last_checked;		/**< Last context checked for DMA */
	int last_context;		/**< Last current context */
	unsigned long last_switch;	/**< jiffies at last context switch */
	/*@} */
 
//   struct work_struct work;
	/** \name VBLANK IRQ support */
	/*@{ */
 
	/*
	 * At load time, disabling the vblank interrupt won't be allowed since
	 * old clients may not call the modeset ioctl and therefore misbehave.
	 * Once the modeset ioctl *has* been called though, we can safely
	 * disable them when unused.
	 */
	int vblank_disable_allowed;
 
//   wait_queue_head_t *vbl_queue;   /**< VBLANK wait queue */
   atomic_t *_vblank_count;        /**< number of VBLANK interrupts (driver must alloc the right number of counters) */
	struct timeval *_vblank_time;   /**< timestamp of current vblank_count (drivers must alloc right number of fields) */
	spinlock_t vblank_time_lock;    /**< Protects vblank count and time updates during vblank enable/disable */
   spinlock_t vbl_lock;
   atomic_t *vblank_refcount;      /* number of users of vblank interruptsper crtc */
	u32 *last_vblank;               /* protected by dev->vbl_lock, used */
					/* for wraparound handling */
	int *vblank_enabled;            /* so we don't call enable more than
					   once per disable */
	int *vblank_inmodeset;          /* Display driver is setting mode */
	u32 *last_vblank_wait;		/* Last vblank seqno waited per CRTC */
//   struct timer_list vblank_disable_timer;
 
	u32 max_vblank_count;           /**< size of vblank counter register */
 
	/**
	 * List of events
	 */
	struct list_head vblank_event_list;
	spinlock_t event_lock;
 
	/*@} */
//   cycles_t ctx_start;
//   cycles_t lck_start;
 
//   struct fasync_struct *buf_async;/**< Processes waiting for SIGIO */
//   wait_queue_head_t buf_readers;  /**< Processes waiting to read */
//   wait_queue_head_t buf_writers;  /**< Processes waiting to ctx switch */
 
//   struct drm_agp_head *agp;   /**< AGP data */
 
	struct device *dev;             /**< Device structure */
	struct pci_dev *pdev;		/**< PCI device structure */
	int pci_vendor;			/**< PCI vendor id */
	int pci_device;			/**< PCI device id */
	unsigned int num_crtcs;                  /**< Number of CRTCs on this device */
	void *dev_private;		/**< device private data */
	void *mm_private;
    struct address_space *dev_mapping;
//   struct drm_sigdata sigdata;    /**< For block_all_signals */
//   sigset_t sigmask;
 
	struct drm_driver *driver;
//   struct drm_local_map *agp_buffer_map;
//   unsigned int agp_buffer_token;
//   struct drm_minor *control;      /**< Control node for card */
   struct drm_minor *primary;      /**< render type primary screen head */
 
        struct drm_mode_config mode_config;	/**< Current mode config */
 
	/** \name GEM information */
	/*@{ */
   spinlock_t object_name_lock;
	struct idr object_name_idr;
	/*@} */
	int switch_power_state;
 
	atomic_t unplugged; /* device has been unplugged or gone away */
};
 
#define DRM_SWITCH_POWER_ON 0
#define DRM_SWITCH_POWER_OFF 1
#define DRM_SWITCH_POWER_CHANGING 2
 
static __inline__ int drm_core_check_feature(struct drm_device *dev,
					     int feature)
{
	return ((dev->driver->driver_features & feature) ? 1 : 0);
}
 
static inline int drm_dev_to_irq(struct drm_device *dev)
{
	return dev->pdev->irq;
}
 
#if 0
 
#ifdef __alpha__
#define drm_get_pci_domain(dev) dev->hose->index
#else
#define drm_get_pci_domain(dev) 0
#endif
 
#if __OS_HAS_AGP
static inline int drm_core_has_AGP(struct drm_device *dev)
{
	return drm_core_check_feature(dev, DRIVER_USE_AGP);
}
#else
#define drm_core_has_AGP(dev) (0)
#endif
 
#if __OS_HAS_MTRR
static inline int drm_core_has_MTRR(struct drm_device *dev)
{
	return drm_core_check_feature(dev, DRIVER_USE_MTRR);
}
 
#define DRM_MTRR_WC		MTRR_TYPE_WRCOMB
 
static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
			       unsigned int flags)
{
	return mtrr_add(offset, size, flags, 1);
}
 
static inline int drm_mtrr_del(int handle, unsigned long offset,
			       unsigned long size, unsigned int flags)
{
	return mtrr_del(handle, offset, size);
}
 
#else
#define drm_core_has_MTRR(dev) (0)
 
#define DRM_MTRR_WC		0
 
static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
			       unsigned int flags)
{
	return 0;
}
 
static inline int drm_mtrr_del(int handle, unsigned long offset,
			       unsigned long size, unsigned int flags)
{
	return 0;
}
#endif
 
/******************************************************************/
/** \name Internal function definitions */
/*@{*/
 
				/* Driver support (drm_drv.h) */
extern long drm_ioctl(struct file *filp,
		     unsigned int cmd, unsigned long arg);
extern long drm_compat_ioctl(struct file *filp,
			     unsigned int cmd, unsigned long arg);
extern int drm_lastclose(struct drm_device *dev);
 
				/* Device support (drm_fops.h) */
extern struct mutex drm_global_mutex;
extern int drm_open(struct inode *inode, struct file *filp);
extern int drm_stub_open(struct inode *inode, struct file *filp);
extern int drm_fasync(int fd, struct file *filp, int on);
extern ssize_t drm_read(struct file *filp, char __user *buffer,
			size_t count, loff_t *offset);
extern int drm_release(struct inode *inode, struct file *filp);
 
				/* Mapping support (drm_vm.h) */
extern int drm_mmap(struct file *filp, struct vm_area_struct *vma);
extern int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma);
extern void drm_vm_open_locked(struct drm_device *dev, struct vm_area_struct *vma);
extern void drm_vm_close_locked(struct drm_device *dev, struct vm_area_struct *vma);
extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
 
				/* Memory management support (drm_memory.h) */
#include 
extern void drm_free_agp(DRM_AGP_MEM * handle, int pages);
extern int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start);
extern DRM_AGP_MEM *drm_agp_bind_pages(struct drm_device *dev,
				       struct page **pages,
				       unsigned long num_pages,
				       uint32_t gtt_offset,
				       uint32_t type);
extern int drm_unbind_agp(DRM_AGP_MEM * handle);
 
				/* Misc. IOCTL support (drm_ioctl.h) */
extern int drm_irq_by_busid(struct drm_device *dev, void *data,
			    struct drm_file *file_priv);
extern int drm_getunique(struct drm_device *dev, void *data,
			 struct drm_file *file_priv);
extern int drm_setunique(struct drm_device *dev, void *data,
			 struct drm_file *file_priv);
extern int drm_getmap(struct drm_device *dev, void *data,
		      struct drm_file *file_priv);
extern int drm_getclient(struct drm_device *dev, void *data,
			 struct drm_file *file_priv);
extern int drm_getstats(struct drm_device *dev, void *data,
			struct drm_file *file_priv);
extern int drm_getcap(struct drm_device *dev, void *data,
		      struct drm_file *file_priv);
extern int drm_setversion(struct drm_device *dev, void *data,
			  struct drm_file *file_priv);
extern int drm_noop(struct drm_device *dev, void *data,
		    struct drm_file *file_priv);
 
				/* Context IOCTL support (drm_context.h) */
extern int drm_resctx(struct drm_device *dev, void *data,
		      struct drm_file *file_priv);
extern int drm_addctx(struct drm_device *dev, void *data,
		      struct drm_file *file_priv);
extern int drm_modctx(struct drm_device *dev, void *data,
		      struct drm_file *file_priv);
extern int drm_getctx(struct drm_device *dev, void *data,
		      struct drm_file *file_priv);
extern int drm_switchctx(struct drm_device *dev, void *data,
			 struct drm_file *file_priv);
extern int drm_newctx(struct drm_device *dev, void *data,
		      struct drm_file *file_priv);
extern int drm_rmctx(struct drm_device *dev, void *data,
		     struct drm_file *file_priv);
 
extern int drm_ctxbitmap_init(struct drm_device *dev);
extern void drm_ctxbitmap_cleanup(struct drm_device *dev);
extern void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
 
extern int drm_setsareactx(struct drm_device *dev, void *data,
			   struct drm_file *file_priv);
extern int drm_getsareactx(struct drm_device *dev, void *data,
			   struct drm_file *file_priv);
 
				/* Authentication IOCTL support (drm_auth.h) */
extern int drm_getmagic(struct drm_device *dev, void *data,
			struct drm_file *file_priv);
extern int drm_authmagic(struct drm_device *dev, void *data,
			 struct drm_file *file_priv);
extern int drm_remove_magic(struct drm_master *master, drm_magic_t magic);
 
/* Cache management (drm_cache.c) */
void drm_clflush_pages(struct page *pages[], unsigned long num_pages);
void drm_clflush_sg(struct sg_table *st);
void drm_clflush_virt_range(char *addr, unsigned long length);
 
				/* Locking IOCTL support (drm_lock.h) */
extern int drm_lock(struct drm_device *dev, void *data,
		    struct drm_file *file_priv);
extern int drm_unlock(struct drm_device *dev, void *data,
		      struct drm_file *file_priv);
extern int drm_lock_free(struct drm_lock_data *lock_data, unsigned int context);
extern void drm_idlelock_take(struct drm_lock_data *lock_data);
extern void drm_idlelock_release(struct drm_lock_data *lock_data);
 
/*
 * These are exported to drivers so that they can implement fencing using
 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
 */
 
extern int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv);
 
				/* Buffer management support (drm_bufs.h) */
extern int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc * request);
extern int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc * request);
extern int drm_addmap(struct drm_device *dev, resource_size_t offset,
		      unsigned int size, enum drm_map_type type,
		      enum drm_map_flags flags, struct drm_local_map **map_ptr);
extern int drm_addmap_ioctl(struct drm_device *dev, void *data,
			    struct drm_file *file_priv);
extern int drm_rmmap(struct drm_device *dev, struct drm_local_map *map);
extern int drm_rmmap_locked(struct drm_device *dev, struct drm_local_map *map);
extern int drm_rmmap_ioctl(struct drm_device *dev, void *data,
			   struct drm_file *file_priv);
extern int drm_addbufs(struct drm_device *dev, void *data,
		       struct drm_file *file_priv);
extern int drm_infobufs(struct drm_device *dev, void *data,
			struct drm_file *file_priv);
extern int drm_markbufs(struct drm_device *dev, void *data,
			struct drm_file *file_priv);
extern int drm_freebufs(struct drm_device *dev, void *data,
			struct drm_file *file_priv);
extern int drm_mapbufs(struct drm_device *dev, void *data,
		       struct drm_file *file_priv);
extern int drm_order(unsigned long size);
 
				/* DMA support (drm_dma.h) */
extern int drm_dma_setup(struct drm_device *dev);
extern void drm_dma_takedown(struct drm_device *dev);
extern void drm_free_buffer(struct drm_device *dev, struct drm_buf * buf);
extern void drm_core_reclaim_buffers(struct drm_device *dev,
				     struct drm_file *filp);
 
				/* IRQ support (drm_irq.h) */
extern int drm_control(struct drm_device *dev, void *data,
		       struct drm_file *file_priv);
extern int drm_irq_install(struct drm_device *dev);
extern int drm_irq_uninstall(struct drm_device *dev);
 
extern int drm_vblank_init(struct drm_device *dev, int num_crtcs);
extern int drm_wait_vblank(struct drm_device *dev, void *data,
			   struct drm_file *filp);
extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq);
extern u32 drm_vblank_count(struct drm_device *dev, int crtc);
extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc,
				     struct timeval *vblanktime);
extern void drm_send_vblank_event(struct drm_device *dev, int crtc,
				     struct drm_pending_vblank_event *e);
extern bool drm_handle_vblank(struct drm_device *dev, int crtc);
extern int drm_vblank_get(struct drm_device *dev, int crtc);
extern void drm_vblank_put(struct drm_device *dev, int crtc);
extern void drm_vblank_off(struct drm_device *dev, int crtc);
extern void drm_vblank_cleanup(struct drm_device *dev);
extern u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc,
				     struct timeval *tvblank, unsigned flags);
extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev,
						 int crtc, int *max_error,
						 struct timeval *vblank_time,
						 unsigned flags,
						 struct drm_crtc *refcrtc);
extern void drm_calc_timestamping_constants(struct drm_crtc *crtc);
 
extern bool
drm_mode_parse_command_line_for_connector(const char *mode_option,
					  struct drm_connector *connector,
					  struct drm_cmdline_mode *mode);
 
extern struct drm_display_mode *
drm_mode_create_from_cmdline_mode(struct drm_device *dev,
				  struct drm_cmdline_mode *cmd);
 
extern int drm_display_mode_from_videomode(const struct videomode *vm,
					   struct drm_display_mode *dmode);
extern int of_get_drm_display_mode(struct device_node *np,
				   struct drm_display_mode *dmode,
				   int index);
 
/* Modesetting support */
extern void drm_vblank_pre_modeset(struct drm_device *dev, int crtc);
extern void drm_vblank_post_modeset(struct drm_device *dev, int crtc);
extern int drm_modeset_ctl(struct drm_device *dev, void *data,
			   struct drm_file *file_priv);
 
				/* AGP/GART support (drm_agpsupport.h) */
extern struct drm_agp_head *drm_agp_init(struct drm_device *dev);
extern int drm_agp_acquire(struct drm_device *dev);
extern int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
				 struct drm_file *file_priv);
extern int drm_agp_release(struct drm_device *dev);
extern int drm_agp_release_ioctl(struct drm_device *dev, void *data,
				 struct drm_file *file_priv);
extern int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
extern int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
				struct drm_file *file_priv);
extern int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info);
extern int drm_agp_info_ioctl(struct drm_device *dev, void *data,
			struct drm_file *file_priv);
extern int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
extern int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
			 struct drm_file *file_priv);
extern int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
extern int drm_agp_free_ioctl(struct drm_device *dev, void *data,
			struct drm_file *file_priv);
extern int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
extern int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
			  struct drm_file *file_priv);
extern int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
extern int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
			struct drm_file *file_priv);
 
				/* Stub support (drm_stub.h) */
extern int drm_setmaster_ioctl(struct drm_device *dev, void *data,
			       struct drm_file *file_priv);
extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
				struct drm_file *file_priv);
struct drm_master *drm_master_create(struct drm_minor *minor);
extern struct drm_master *drm_master_get(struct drm_master *master);
extern void drm_master_put(struct drm_master **master);
 
extern void drm_put_dev(struct drm_device *dev);
extern int drm_put_minor(struct drm_minor **minor);
extern void drm_unplug_dev(struct drm_device *dev);
#endif
 
extern unsigned int drm_debug;
 
#if 0
extern unsigned int drm_vblank_offdelay;
extern unsigned int drm_timestamp_precision;
extern unsigned int drm_timestamp_monotonic;
 
extern struct class *drm_class;
extern struct proc_dir_entry *drm_proc_root;
extern struct dentry *drm_debugfs_root;
 
extern struct idr drm_minors_idr;
 
extern struct drm_local_map *drm_getsarea(struct drm_device *dev);
 
				/* Proc support (drm_proc.h) */
extern int drm_proc_init(struct drm_minor *minor, int minor_id,
			 struct proc_dir_entry *root);
extern int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root);
 
				/* Debugfs support */
#if defined(CONFIG_DEBUG_FS)
extern int drm_debugfs_init(struct drm_minor *minor, int minor_id,
			    struct dentry *root);
extern int drm_debugfs_create_files(struct drm_info_list *files, int count,
				    struct dentry *root, struct drm_minor *minor);
extern int drm_debugfs_remove_files(struct drm_info_list *files, int count,
                                    struct drm_minor *minor);
extern int drm_debugfs_cleanup(struct drm_minor *minor);
#endif
 
				/* Info file support */
extern int drm_name_info(struct seq_file *m, void *data);
extern int drm_vm_info(struct seq_file *m, void *data);
extern int drm_bufs_info(struct seq_file *m, void *data);
extern int drm_vblank_info(struct seq_file *m, void *data);
extern int drm_clients_info(struct seq_file *m, void* data);
extern int drm_gem_name_info(struct seq_file *m, void *data);
 
#if DRM_DEBUG_CODE
extern int drm_vma_info(struct seq_file *m, void *data);
#endif
 
				/* Scatter Gather Support (drm_scatter.h) */
extern void drm_sg_cleanup(struct drm_sg_mem * entry);
extern int drm_sg_alloc_ioctl(struct drm_device *dev, void *data,
			struct drm_file *file_priv);
extern int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request);
extern int drm_sg_free(struct drm_device *dev, void *data,
		       struct drm_file *file_priv);
 
			       /* ATI PCIGART support (ati_pcigart.h) */
extern int drm_ati_pcigart_init(struct drm_device *dev,
				struct drm_ati_pcigart_info * gart_info);
extern int drm_ati_pcigart_cleanup(struct drm_device *dev,
				   struct drm_ati_pcigart_info * gart_info);
#endif
 
extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
				       size_t align);
extern void __drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
extern void drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
 
#if 0
			       /* sysfs support (drm_sysfs.c) */
struct drm_sysfs_class;
extern struct class *drm_sysfs_create(struct module *owner, char *name);
extern void drm_sysfs_destroy(void);
extern int drm_sysfs_device_add(struct drm_minor *minor);
extern void drm_sysfs_hotplug_event(struct drm_device *dev);
extern void drm_sysfs_device_remove(struct drm_minor *minor);
extern char *drm_get_connector_status_name(enum drm_connector_status status);
 
static inline int drm_sysfs_connector_add(struct drm_connector *connector)
{ return 0; };
 
static inline void drm_sysfs_connector_remove(struct drm_connector *connector)
{ };
 
#endif
 
/* Graphics Execution Manager library functions (drm_gem.c) */
int drm_gem_init(struct drm_device *dev);
void drm_gem_destroy(struct drm_device *dev);
void drm_gem_object_release(struct drm_gem_object *obj);
void drm_gem_object_free(struct kref *kref);
struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev,
					    size_t size);
int drm_gem_object_init(struct drm_device *dev,
			struct drm_gem_object *obj, size_t size);
int drm_gem_private_object_init(struct drm_device *dev,
			struct drm_gem_object *obj, size_t size);
void drm_gem_object_handle_free(struct drm_gem_object *obj);
void drm_gem_vm_open(struct vm_area_struct *vma);
void drm_gem_vm_close(struct vm_area_struct *vma);
int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
 
 
static inline void
drm_gem_object_reference(struct drm_gem_object *obj)
{
	kref_get(&obj->refcount);
}
 
static inline void
drm_gem_object_unreference(struct drm_gem_object *obj)
{
	if (obj != NULL)
		kref_put(&obj->refcount, drm_gem_object_free);
}
 
static inline void
drm_gem_object_unreference_unlocked(struct drm_gem_object *obj)
{
	if (obj != NULL) {
		struct drm_device *dev = obj->dev;
		mutex_lock(&dev->struct_mutex);
	kref_put(&obj->refcount, drm_gem_object_free);
		mutex_unlock(&dev->struct_mutex);
	}
}
 
int drm_gem_handle_create(struct drm_file *file_priv,
			  struct drm_gem_object *obj,
			  u32 *handlep);
int drm_gem_handle_delete(struct drm_file *filp, u32 handle);
 
static inline void
drm_gem_object_handle_reference(struct drm_gem_object *obj)
{
	drm_gem_object_reference(obj);
	atomic_inc(&obj->handle_count);
}
 
static inline void
drm_gem_object_handle_unreference(struct drm_gem_object *obj)
{
	if (obj == NULL)
		return;
 
	if (atomic_read(&obj->handle_count) == 0)
		return;
	/*
	 * Must bump handle count first as this may be the last
	 * ref, in which case the object would disappear before we
	 * checked for a name
	 */
	if (atomic_dec_and_test(&obj->handle_count))
		drm_gem_object_handle_free(obj);
	drm_gem_object_unreference(obj);
}
 
static inline void
drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj)
{
	if (obj == NULL)
		return;
 
	if (atomic_read(&obj->handle_count) == 0)
		return;
 
	/*
	* Must bump handle count first as this may be the last
	* ref, in which case the object would disappear before we
	* checked for a name
	*/
 
	if (atomic_dec_and_test(&obj->handle_count))
		drm_gem_object_handle_free(obj);
	drm_gem_object_unreference_unlocked(obj);
}
 
void drm_gem_free_mmap_offset(struct drm_gem_object *obj);
int drm_gem_create_mmap_offset(struct drm_gem_object *obj);
 
struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev,
					     struct drm_file *filp,
					     u32 handle);
int drm_gem_close_ioctl(struct drm_device *dev, void *data,
			struct drm_file *file_priv);
int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
			struct drm_file *file_priv);
int drm_gem_open_ioctl(struct drm_device *dev, void *data,
		       struct drm_file *file_priv);
void drm_gem_open(struct drm_device *dev, struct drm_file *file_private);
void drm_gem_release(struct drm_device *dev, struct drm_file *file_private);
 
extern void drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev);
extern void drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev);
extern void drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev);
 
#if 0
 
static __inline__ struct drm_local_map *drm_core_findmap(struct drm_device *dev,
							 unsigned int token)
{
	struct drm_map_list *_entry;
	list_for_each_entry(_entry, &dev->maplist, head)
	    if (_entry->user_token == token)
		return _entry->map;
	return NULL;
}
 
static __inline__ void drm_core_dropmap(struct drm_local_map *map)
{
}
 
 
 
static __inline__ void *drm_calloc_large(size_t nmemb, size_t size)
{
	if (size * nmemb <= PAGE_SIZE)
	    return kcalloc(nmemb, size, GFP_KERNEL);
 
	if (size != 0 && nmemb > ULONG_MAX / size)
		return NULL;
 
	return __vmalloc(size * nmemb,
			 GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO, PAGE_KERNEL);
}
 
static __inline void drm_free_large(void *ptr)
{
	if (!is_vmalloc_addr(ptr))
		return kfree(ptr);
 
	vfree(ptr);
}
 
#endif
 
#define DRM_PCIE_SPEED_25 1
#define DRM_PCIE_SPEED_50 2
#define DRM_PCIE_SPEED_80 4
 
extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask);
 
static __inline__ int drm_device_is_agp(struct drm_device *dev)
{
    return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP);
}
 
static __inline__ int drm_device_is_pcie(struct drm_device *dev)
{
    return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP);
}
#endif				/* __KERNEL__ */
 
#define drm_sysfs_connector_add(connector)
#define drm_sysfs_connector_remove(connector)
 
#define LFB_SIZE 0xC00000
 
#endif

Rev 3747	Rev 3763
1	/**	1	/**
2	* \file drmP.h	2	* \file drmP.h
3	* Private header for Direct Rendering Manager	3	* Private header for Direct Rendering Manager
4	*	4	*
5	* \author Rickard E. (Rik) Faith	5	* \author Rickard E. (Rik) Faith
6	* \author Gareth Hughes	6	* \author Gareth Hughes
7	*/	7	*/
8		8
9	/*	9	/*
10	* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.	10	* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
11	* Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.	11	* Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
12	* Copyright (c) 2009-2010, Code Aurora Forum.	12	* Copyright (c) 2009-2010, Code Aurora Forum.
13	* All rights reserved.	13	* All rights reserved.
14	*	14	*
15	* Permission is hereby granted, free of charge, to any person obtaining a	15	* Permission is hereby granted, free of charge, to any person obtaining a
16	* copy of this software and associated documentation files (the "Software"),	16	* copy of this software and associated documentation files (the "Software"),
17	* to deal in the Software without restriction, including without limitation	17	* to deal in the Software without restriction, including without limitation
18	* the rights to use, copy, modify, merge, publish, distribute, sublicense,	18	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
19	* and/or sell copies of the Software, and to permit persons to whom the	19	* and/or sell copies of the Software, and to permit persons to whom the
20	* Software is furnished to do so, subject to the following conditions:	20	* Software is furnished to do so, subject to the following conditions:
21	*	21	*
22	* The above copyright notice and this permission notice (including the next	22	* The above copyright notice and this permission notice (including the next
23	* paragraph) shall be included in all copies or substantial portions of the	23	* paragraph) shall be included in all copies or substantial portions of the
24	* Software.	24	* Software.
25	*	25	*
26	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR	26	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
27	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,	27	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
28	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL	28	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
29	* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR	29	* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
30	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,	30	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
31	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR	31	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
32	* OTHER DEALINGS IN THE SOFTWARE.	32	* OTHER DEALINGS IN THE SOFTWARE.
33	*/	33	*/
34		34
35	#ifndef _DRM_P_H_	35	#ifndef _DRM_P_H_
36	#define _DRM_P_H_	36	#define _DRM_P_H_
37		37
38	#define iowrite32(v, addr) writel((v), (addr))	38	#define iowrite32(v, addr) writel((v), (addr))
39		39
40	#ifdef __KERNEL__	40	#ifdef __KERNEL__
41	#ifdef __alpha__	41	#ifdef __alpha__
42	/* add include of current.h so that "current" is defined	42	/* add include of current.h so that "current" is defined
43	* before static inline funcs in wait.h. Doing this so we	43	* before static inline funcs in wait.h. Doing this so we
44	* can build the DRM (part of PI DRI). 4/21/2000 S + B */	44	* can build the DRM (part of PI DRI). 4/21/2000 S + B */
45	#include	45	#include
46	#endif /* __alpha__ */	46	#endif /* __alpha__ */
47		47
48	#include	48	#include
49		49
50	#include	50	#include
51	#include	51	#include
52	#include	52	#include
53	#include	53	#include
54	#include	54	#include
55	#include	55	#include
56	#include	56	#include
57	#include	57	#include
58		58
-		59	#include
-		60	#include
59	//#include	61
60	//#include	62	//#include
61	//#include	63	//#include
62	//#include	64	//#include
63	//#include	65	//#include
64	#include	66	#include
65	#include	67	#include
66	#include	68	#include
67	//#include /* For (un)lock_kernel */	69	//#include /* For (un)lock_kernel */
68	//#include	70	//#include
69	//#include	71	//#include
70	//#include	72	//#include
71	#include	73	#include
72	//#include	74	//#include
73	//#include	75	//#include
74	//#include	76	//#include
75	//#include	77	//#include
76	//#include	78	//#include
77	//#include	79	//#include
78		80
79	#include	81	#include
80		82
81		83
82	#include "drm.h"	84	#include "drm.h"
83		85
84	#include	86	#include
85		87
86	#define __OS_HAS_AGP (defined(CONFIG_AGP) \|\| (defined(CONFIG_AGP_MODULE) && defined(MODULE)))	88	#define __OS_HAS_AGP (defined(CONFIG_AGP) \|\| (defined(CONFIG_AGP_MODULE) && defined(MODULE)))
87	#define __OS_HAS_MTRR (defined(CONFIG_MTRR))	89	#define __OS_HAS_MTRR (defined(CONFIG_MTRR))
88		90
89	struct module;	91	struct module;
90		92
91	struct drm_file;	93	struct drm_file;
92	struct drm_device;	94	struct drm_device;
93		95
94	struct device_node;	96	struct device_node;
95	struct videomode;	97	struct videomode;
96	//#include	98	//#include
97	#include	99	#include
98	#include	100	#include
99		101
100	#define KHZ2PICOS(a) (1000000000UL/(a))	102	#define KHZ2PICOS(a) (1000000000UL/(a))
101		103
102	/* get_scanout_position() return flags */	104	/* get_scanout_position() return flags */
103	#define DRM_SCANOUTPOS_VALID (1 << 0)	105	#define DRM_SCANOUTPOS_VALID (1 << 0)
104	#define DRM_SCANOUTPOS_INVBL (1 << 1)	106	#define DRM_SCANOUTPOS_INVBL (1 << 1)
105	#define DRM_SCANOUTPOS_ACCURATE (1 << 2)	107	#define DRM_SCANOUTPOS_ACCURATE (1 << 2)
106		108
107		109
108		110
109	#define DRM_UT_CORE 0x01	111	#define DRM_UT_CORE 0x01
110	#define DRM_UT_DRIVER 0x02	112	#define DRM_UT_DRIVER 0x02
111	#define DRM_UT_KMS 0x04	113	#define DRM_UT_KMS 0x04
112	#define DRM_UT_PRIME 0x08	114	#define DRM_UT_PRIME 0x08
113	/*	115	/*
114	* Three debug levels are defined.	116	* Three debug levels are defined.
115	* drm_core, drm_driver, drm_kms	117	* drm_core, drm_driver, drm_kms
116	* drm_core level can be used in the generic drm code. For example:	118	* drm_core level can be used in the generic drm code. For example:
117	* drm_ioctl, drm_mm, drm_memory	119	* drm_ioctl, drm_mm, drm_memory
118	* The macro definition of DRM_DEBUG is used.	120	* The macro definition of DRM_DEBUG is used.
119	* DRM_DEBUG(fmt, args...)	121	* DRM_DEBUG(fmt, args...)
120	* The debug info by using the DRM_DEBUG can be obtained by adding	122	* The debug info by using the DRM_DEBUG can be obtained by adding
121	* the boot option of "drm.debug=1".	123	* the boot option of "drm.debug=1".
122	*	124	*
123	* drm_driver level can be used in the specific drm driver. It is used	125	* drm_driver level can be used in the specific drm driver. It is used
124	* to add the debug info related with the drm driver. For example:	126	* to add the debug info related with the drm driver. For example:
125	* i915_drv, i915_dma, i915_gem, radeon_drv,	127	* i915_drv, i915_dma, i915_gem, radeon_drv,
126	* The macro definition of DRM_DEBUG_DRIVER can be used.	128	* The macro definition of DRM_DEBUG_DRIVER can be used.
127	* DRM_DEBUG_DRIVER(fmt, args...)	129	* DRM_DEBUG_DRIVER(fmt, args...)
128	* The debug info by using the DRM_DEBUG_DRIVER can be obtained by	130	* The debug info by using the DRM_DEBUG_DRIVER can be obtained by
129	* adding the boot option of "drm.debug=0x02"	131	* adding the boot option of "drm.debug=0x02"
130	*	132	*
131	* drm_kms level can be used in the KMS code related with specific drm driver.	133	* drm_kms level can be used in the KMS code related with specific drm driver.
132	* It is used to add the debug info related with KMS mode. For example:	134	* It is used to add the debug info related with KMS mode. For example:
133	* the connector/crtc ,	135	* the connector/crtc ,
134	* The macro definition of DRM_DEBUG_KMS can be used.	136	* The macro definition of DRM_DEBUG_KMS can be used.
135	* DRM_DEBUG_KMS(fmt, args...)	137	* DRM_DEBUG_KMS(fmt, args...)
136	* The debug info by using the DRM_DEBUG_KMS can be obtained by	138	* The debug info by using the DRM_DEBUG_KMS can be obtained by
137	* adding the boot option of "drm.debug=0x04"	139	* adding the boot option of "drm.debug=0x04"
138	*	140	*
139	* If we add the boot option of "drm.debug=0x06", we can get the debug info by	141	* If we add the boot option of "drm.debug=0x06", we can get the debug info by
140	* using the DRM_DEBUG_KMS and DRM_DEBUG_DRIVER.	142	* using the DRM_DEBUG_KMS and DRM_DEBUG_DRIVER.
141	* If we add the boot option of "drm.debug=0x05", we can get the debug info by	143	* If we add the boot option of "drm.debug=0x05", we can get the debug info by
142	* using the DRM_DEBUG_KMS and DRM_DEBUG.	144	* using the DRM_DEBUG_KMS and DRM_DEBUG.
143	*/	145	*/
144		146
145	extern __printf(4, 5)	147	extern __printf(4, 5)
146	void drm_ut_debug_printk(unsigned int request_level,	148	void drm_ut_debug_printk(unsigned int request_level,
147	const char *prefix,	149	const char *prefix,
148	const char *function_name,	150	const char *function_name,
149	const char *format, ...);	151	const char *format, ...);
150	extern __printf(2, 3)	152	extern __printf(2, 3)
151	int drm_err(const char func, const char format, ...);	153	int drm_err(const char func, const char format, ...);
152		154
153	/***********************************************************************/	155	/***********************************************************************/
154	/** \name DRM template customization defaults */	156	/** \name DRM template customization defaults */
155	/@{/	157	/@{/
156		158
157	/* driver capabilities and requirements mask */	159	/* driver capabilities and requirements mask */
158	#define DRIVER_USE_AGP 0x1	160	#define DRIVER_USE_AGP 0x1
159	#define DRIVER_REQUIRE_AGP 0x2	161	#define DRIVER_REQUIRE_AGP 0x2
160	#define DRIVER_USE_MTRR 0x4	162	#define DRIVER_USE_MTRR 0x4
161	#define DRIVER_PCI_DMA 0x8	163	#define DRIVER_PCI_DMA 0x8
162	#define DRIVER_SG 0x10	164	#define DRIVER_SG 0x10
163	#define DRIVER_HAVE_DMA 0x20	165	#define DRIVER_HAVE_DMA 0x20
164	#define DRIVER_HAVE_IRQ 0x40	166	#define DRIVER_HAVE_IRQ 0x40
165	#define DRIVER_IRQ_SHARED 0x80	167	#define DRIVER_IRQ_SHARED 0x80
166	#define DRIVER_IRQ_VBL 0x100	168	#define DRIVER_IRQ_VBL 0x100
167	#define DRIVER_DMA_QUEUE 0x200	169	#define DRIVER_DMA_QUEUE 0x200
168	#define DRIVER_FB_DMA 0x400	170	#define DRIVER_FB_DMA 0x400
169	#define DRIVER_IRQ_VBL2 0x800	171	#define DRIVER_IRQ_VBL2 0x800
170	#define DRIVER_GEM 0x1000	172	#define DRIVER_GEM 0x1000
171	#define DRIVER_MODESET 0x2000	173	#define DRIVER_MODESET 0x2000
172	#define DRIVER_PRIME 0x4000	174	#define DRIVER_PRIME 0x4000
173		175
174	#define DRIVER_BUS_PCI 0x1	176	#define DRIVER_BUS_PCI 0x1
175	#define DRIVER_BUS_PLATFORM 0x2	177	#define DRIVER_BUS_PLATFORM 0x2
176	#define DRIVER_BUS_USB 0x3	178	#define DRIVER_BUS_USB 0x3
177		179
178	/***********************************************************************/	180	/***********************************************************************/
179	/** \name Begin the DRM... */	181	/** \name Begin the DRM... */
180	/@{/	182	/@{/
181		183
182	#define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then	184	#define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then
183	also include looping detection. */	185	also include looping detection. */
184		186
185	#define DRM_MAGIC_HASH_ORDER 4 /*< Size of key hash table. Must be power of 2. /	187	#define DRM_MAGIC_HASH_ORDER 4 /*< Size of key hash table. Must be power of 2. /
186	#define DRM_KERNEL_CONTEXT 0 /*< Change drm_resctx if changed /	188	#define DRM_KERNEL_CONTEXT 0 /*< Change drm_resctx if changed /
187	#define DRM_RESERVED_CONTEXTS 1 /*< Change drm_resctx if changed /	189	#define DRM_RESERVED_CONTEXTS 1 /*< Change drm_resctx if changed /
188	#define DRM_LOOPING_LIMIT 5000000	190	#define DRM_LOOPING_LIMIT 5000000
189	#define DRM_TIME_SLICE (HZ/20) /*< Time slice for GLXContexts /	191	#define DRM_TIME_SLICE (HZ/20) /*< Time slice for GLXContexts /
190	#define DRM_LOCK_SLICE 1 /*< Time slice for lock, in jiffies /	192	#define DRM_LOCK_SLICE 1 /*< Time slice for lock, in jiffies /
191		193
192	#define DRM_FLAG_DEBUG 0x01	194	#define DRM_FLAG_DEBUG 0x01
193		195
194	#define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)	196	#define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
195	#define DRM_MAP_HASH_OFFSET 0x10000000	197	#define DRM_MAP_HASH_OFFSET 0x10000000
196		198
197	/@}/	199	/@}/
198		200
199	/***********************************************************************/	201	/***********************************************************************/
200	/** \name Macros to make printk easier */	202	/** \name Macros to make printk easier */
201	/@{/	203	/@{/
202		204
203	/**	205	/**
204	* Error output.	206	* Error output.
205	*	207	*
206	* \param fmt printf() like format string.	208	* \param fmt printf() like format string.
207	* \param arg arguments	209	* \param arg arguments
208	*/	210	*/
209	#define DRM_ERROR(fmt, ...) \	211	#define DRM_ERROR(fmt, ...) \
210	drm_err(__func__, fmt, ##__VA_ARGS__)	212	drm_err(__func__, fmt, ##__VA_ARGS__)
211		213
212	#define DRM_INFO(fmt, ...) \	214	#define DRM_INFO(fmt, ...) \
213	printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__)	215	printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__)
214		216
215	/**	217	/**
216	* Debug output.	218	* Debug output.
217	*	219	*
218	* \param fmt printf() like format string.	220	* \param fmt printf() like format string.
219	* \param arg arguments	221	* \param arg arguments
220	*/	222	*/
221	#if DRM_DEBUG_CODE	223	#if DRM_DEBUG_CODE
222	#define DRM_DEBUG(fmt, ...) \	224	#define DRM_DEBUG(fmt, ...) \
223	do { \	225	do { \
224	printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__); \	226	printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__); \
225	} while (0)	227	} while (0)
226		228
227	#define DRM_DEBUG_DRIVER(fmt, ...) \	229	#define DRM_DEBUG_DRIVER(fmt, ...) \
228	do { \	230	do { \
229	printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__); \	231	printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__); \
230	} while (0)	232	} while (0)
231	#define DRM_DEBUG_KMS(fmt, ...) \	233	#define DRM_DEBUG_KMS(fmt, ...) \
232	do { \	234	do { \
233	printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__); \	235	printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__); \
234	} while (0)	236	} while (0)
235	#define DRM_DEBUG_PRIME(fmt, ...) \	237	#define DRM_DEBUG_PRIME(fmt, ...) \
236	do { \	238	do { \
237	printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__); \	239	printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__); \
238	} while (0)	240	} while (0)
239	#define DRM_LOG(fmt, ...) \	241	#define DRM_LOG(fmt, ...) \
240	do { \	242	do { \
241	printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__); \	243	printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__); \
242	} while (0)	244	} while (0)
243	#define DRM_LOG_KMS(fmt, ...) \	245	#define DRM_LOG_KMS(fmt, ...) \
244	do { \	246	do { \
245	printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__); \	247	printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__); \
246	} while (0)	248	} while (0)
247	#define DRM_LOG_MODE(fmt, ...) \	249	#define DRM_LOG_MODE(fmt, ...) \
248	do { \	250	do { \
249	printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__); \	251	printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__); \
250	} while (0)	252	} while (0)
251	#define DRM_LOG_DRIVER(fmt, ...) \	253	#define DRM_LOG_DRIVER(fmt, ...) \
252	do { \	254	do { \
253	printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__); \	255	printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__); \
254	} while (0)	256	} while (0)
255	#else	257	#else
256	#define DRM_DEBUG_DRIVER(fmt, args...) do { } while (0)	258	#define DRM_DEBUG_DRIVER(fmt, args...) do { } while (0)
257	#define DRM_DEBUG_KMS(fmt, args...) do { } while (0)	259	#define DRM_DEBUG_KMS(fmt, args...) do { } while (0)
258	#define DRM_DEBUG_PRIME(fmt, args...) do { } while (0)	260	#define DRM_DEBUG_PRIME(fmt, args...) do { } while (0)
259	#define DRM_DEBUG(fmt, arg...) do { } while (0)	261	#define DRM_DEBUG(fmt, arg...) do { } while (0)
260	#define DRM_LOG(fmt, arg...) do { } while (0)	262	#define DRM_LOG(fmt, arg...) do { } while (0)
261	#define DRM_LOG_KMS(fmt, args...) do { } while (0)	263	#define DRM_LOG_KMS(fmt, args...) do { } while (0)
262	#define DRM_LOG_MODE(fmt, arg...) do { } while (0)	264	#define DRM_LOG_MODE(fmt, arg...) do { } while (0)
263	#define DRM_LOG_DRIVER(fmt, arg...) do { } while (0)	265	#define DRM_LOG_DRIVER(fmt, arg...) do { } while (0)
264		266
265	#endif	267	#endif
266		268
267	/@}/	269	/@}/
268		270
269	/***********************************************************************/	271	/***********************************************************************/
270	/** \name Internal types and structures */	272	/** \name Internal types and structures */
271	/@{/	273	/@{/
272		274
273	#define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x)	275	#define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x)
274		276
275	#define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))	277	#define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
276	#define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))	278	#define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
277		279
278	#define DRM_IF_VERSION(maj, min) (maj << 16 \| min)	280	#define DRM_IF_VERSION(maj, min) (maj << 16 \| min)
279		281
280	/**	282	/**
281	* Test that the hardware lock is held by the caller, returning otherwise.	283	* Test that the hardware lock is held by the caller, returning otherwise.
282	*	284	*
283	* \param dev DRM device.	285	* \param dev DRM device.
284	* \param filp file pointer of the caller.	286	* \param filp file pointer of the caller.
285	*/	287	*/
286	#define LOCK_TEST_WITH_RETURN( dev, _file_priv ) \	288	#define LOCK_TEST_WITH_RETURN( dev, _file_priv ) \
287	do { \	289	do { \
288	if (!_DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock) \|\| \	290	if (!_DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock) \|\| \
289	_file_priv->master->lock.file_priv != _file_priv) { \	291	_file_priv->master->lock.file_priv != _file_priv) { \
290	DRM_ERROR( "%s called without lock held, held %d owner %p %p\n",\	292	DRM_ERROR( "%s called without lock held, held %d owner %p %p\n",\
291	__func__, _DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock),\	293	__func__, _DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock),\
292	_file_priv->master->lock.file_priv, _file_priv); \	294	_file_priv->master->lock.file_priv, _file_priv); \
293	return -EINVAL; \	295	return -EINVAL; \
294	} \	296	} \
295	} while (0)	297	} while (0)
296		298
297	#if 0	299	#if 0
298	/**	300	/**
299	* Ioctl function type.	301	* Ioctl function type.
300	*	302	*
301	* \param inode device inode.	303	* \param inode device inode.
302	* \param file_priv DRM file private pointer.	304	* \param file_priv DRM file private pointer.
303	* \param cmd command.	305	* \param cmd command.
304	* \param arg argument.	306	* \param arg argument.
305	*/	307	*/
306	typedef int drm_ioctl_t(struct drm_device dev, void data,	308	typedef int drm_ioctl_t(struct drm_device dev, void data,
307	struct drm_file *file_priv);	309	struct drm_file *file_priv);
308		310
309	typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,	311	typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
310	unsigned long arg);	312	unsigned long arg);
311		313
312	#define DRM_IOCTL_NR(n) _IOC_NR(n)	314	#define DRM_IOCTL_NR(n) _IOC_NR(n)
313	#define DRM_MAJOR 226	315	#define DRM_MAJOR 226
314		316
315	#define DRM_AUTH 0x1	317	#define DRM_AUTH 0x1
316	#define DRM_MASTER 0x2	318	#define DRM_MASTER 0x2
317	#define DRM_ROOT_ONLY 0x4	319	#define DRM_ROOT_ONLY 0x4
318	#define DRM_CONTROL_ALLOW 0x8	320	#define DRM_CONTROL_ALLOW 0x8
319	#define DRM_UNLOCKED 0x10	321	#define DRM_UNLOCKED 0x10
320		322
321	struct drm_ioctl_desc {	323	struct drm_ioctl_desc {
322	unsigned int cmd;	324	unsigned int cmd;
323	int flags;	325	int flags;
324	drm_ioctl_t *func;	326	drm_ioctl_t *func;
325	unsigned int cmd_drv;	327	unsigned int cmd_drv;
326	const char *name;	328	const char *name;
327	};	329	};
328		330
329	/**	331	/**
330	* Creates a driver or general drm_ioctl_desc array entry for the given	332	* Creates a driver or general drm_ioctl_desc array entry for the given
331	* ioctl, for use by drm_ioctl().	333	* ioctl, for use by drm_ioctl().
332	*/	334	*/
333		335
334	#define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \	336	#define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \
335	[DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl, .name = #ioctl}	337	[DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl, .name = #ioctl}
336		338
337	struct drm_magic_entry {	339	struct drm_magic_entry {
338	struct list_head head;	340	struct list_head head;
339	struct drm_hash_item hash_item;	341	struct drm_hash_item hash_item;
340	struct drm_file *priv;	342	struct drm_file *priv;
341	};	343	};
342		344
343	struct drm_vma_entry {	345	struct drm_vma_entry {
344	struct list_head head;	346	struct list_head head;
345	struct vm_area_struct *vma;	347	struct vm_area_struct *vma;
346	pid_t pid;	348	pid_t pid;
347	};	349	};
348		350
349	/**	351	/**
350	* DMA buffer.	352	* DMA buffer.
351	*/	353	*/
352	struct drm_buf {	354	struct drm_buf {
353	int idx; /*< Index into master buflist /	355	int idx; /*< Index into master buflist /
354	int total; /*< Buffer size /	356	int total; /*< Buffer size /
355	int order; /*< log-base-2(total) /	357	int order; /*< log-base-2(total) /
356	int used; /*< Amount of buffer in use (for DMA) /	358	int used; /*< Amount of buffer in use (for DMA) /
357	unsigned long offset; /*< Byte offset (used internally) /	359	unsigned long offset; /*< Byte offset (used internally) /
358	void address; /< Address of buffer /	360	void address; /< Address of buffer /
359	unsigned long bus_address; /*< Bus address of buffer /	361	unsigned long bus_address; /*< Bus address of buffer /
360	struct drm_buf next; /< Kernel-only: used for free list /	362	struct drm_buf next; /< Kernel-only: used for free list /
361	__volatile__ int waiting; /*< On kernel DMA queue /	363	__volatile__ int waiting; /*< On kernel DMA queue /
362	__volatile__ int pending; /*< On hardware DMA queue /	364	__volatile__ int pending; /*< On hardware DMA queue /
363	struct drm_file file_priv; /< Private of holding file descr /	365	struct drm_file file_priv; /< Private of holding file descr /
364	int context; /*< Kernel queue for this buffer /	366	int context; /*< Kernel queue for this buffer /
365	int while_locked; /*< Dispatch this buffer while locked /	367	int while_locked; /*< Dispatch this buffer while locked /
366	enum {	368	enum {
367	DRM_LIST_NONE = 0,	369	DRM_LIST_NONE = 0,
368	DRM_LIST_FREE = 1,	370	DRM_LIST_FREE = 1,
369	DRM_LIST_WAIT = 2,	371	DRM_LIST_WAIT = 2,
370	DRM_LIST_PEND = 3,	372	DRM_LIST_PEND = 3,
371	DRM_LIST_PRIO = 4,	373	DRM_LIST_PRIO = 4,
372	DRM_LIST_RECLAIM = 5	374	DRM_LIST_RECLAIM = 5
373	} list; /*< Which list we're on /	375	} list; /*< Which list we're on /
374		376
375	int dev_priv_size; /*< Size of buffer private storage /	377	int dev_priv_size; /*< Size of buffer private storage /
376	void dev_private; /< Per-buffer private storage /	378	void dev_private; /< Per-buffer private storage /
377	};	379	};
378		380
379	/** bufs is one longer than it has to be */	381	/** bufs is one longer than it has to be */
380	struct drm_waitlist {	382	struct drm_waitlist {
381	int count; /*< Number of possible buffers /	383	int count; /*< Number of possible buffers /
382	struct drm_buf bufs; /< List of pointers to buffers */	384	struct drm_buf bufs; /< List of pointers to buffers */
383	struct drm_buf rp; /< Read pointer */	385	struct drm_buf rp; /< Read pointer */
384	struct drm_buf wp; /< Write pointer */	386	struct drm_buf wp; /< Write pointer */
385	struct drm_buf end; /< End pointer */	387	struct drm_buf end; /< End pointer */
386	spinlock_t read_lock;	388	spinlock_t read_lock;
387	spinlock_t write_lock;	389	spinlock_t write_lock;
388	};	390	};
389		391
390	struct drm_freelist {	392	struct drm_freelist {
391	int initialized; /*< Freelist in use /	393	int initialized; /*< Freelist in use /
392	atomic_t count; /*< Number of free buffers /	394	atomic_t count; /*< Number of free buffers /
393	struct drm_buf next; /< End pointer /	395	struct drm_buf next; /< End pointer /
394		396
395	wait_queue_head_t waiting; /*< Processes waiting on free bufs /	397	wait_queue_head_t waiting; /*< Processes waiting on free bufs /
396	int low_mark; /*< Low water mark /	398	int low_mark; /*< Low water mark /
397	int high_mark; /*< High water mark /	399	int high_mark; /*< High water mark /
398	atomic_t wfh; /*< If waiting for high mark /	400	atomic_t wfh; /*< If waiting for high mark /
399	spinlock_t lock;	401	spinlock_t lock;
400	};	402	};
401	#endif	403	#endif
402		404
403	typedef struct drm_dma_handle {	405	typedef struct drm_dma_handle {
404	dma_addr_t busaddr;	406	dma_addr_t busaddr;
405	void *vaddr;	407	void *vaddr;
406	size_t size;	408	size_t size;
407	} drm_dma_handle_t;	409	} drm_dma_handle_t;
408		410
409	#if 0	411	#if 0
410	/**	412	/**
411	* Buffer entry. There is one of this for each buffer size order.	413	* Buffer entry. There is one of this for each buffer size order.
412	*/	414	*/
413	struct drm_buf_entry {	415	struct drm_buf_entry {
414	int buf_size; /*< size /	416	int buf_size; /*< size /
415	int buf_count; /*< number of buffers /	417	int buf_count; /*< number of buffers /
416	struct drm_buf buflist; /< buffer list /	418	struct drm_buf buflist; /< buffer list /
417	int seg_count;	419	int seg_count;
418	int page_order;	420	int page_order;
419	struct drm_dma_handle **seglist;	421	struct drm_dma_handle **seglist;
420		422
421	struct drm_freelist freelist;	423	struct drm_freelist freelist;
422	};	424	};
423		425
424	/* Event queued up for userspace to read */	426	/* Event queued up for userspace to read */
425	struct drm_pending_event {	427	struct drm_pending_event {
426	struct drm_event *event;	428	struct drm_event *event;
427	struct list_head link;	429	struct list_head link;
428	struct drm_file *file_priv;	430	struct drm_file *file_priv;
429	pid_t pid; /* pid of requester, no guarantee it's valid by the time	431	pid_t pid; /* pid of requester, no guarantee it's valid by the time
430	we deliver the event, for tracing only */	432	we deliver the event, for tracing only */
431	void (destroy)(struct drm_pending_event event);	433	void (destroy)(struct drm_pending_event event);
432	};	434	};
433		435
434	/* initial implementaton using a linked list - todo hashtab */	436	/* initial implementaton using a linked list - todo hashtab */
435	struct drm_prime_file_private {	437	struct drm_prime_file_private {
436	struct list_head head;	438	struct list_head head;
437	struct mutex lock;	439	struct mutex lock;
438	};	440	};
439	#endif	441	#endif
440		442
441	/** File private data */	443	/** File private data */
442	struct drm_file {	444	struct drm_file {
443	struct list_head lhead;	445	struct list_head lhead;
444	unsigned long lock_count;	446	unsigned long lock_count;
445		447
446	/** Mapping of mm object handles to object pointers. */	448	/** Mapping of mm object handles to object pointers. */
447	struct idr object_idr;	449	struct idr object_idr;
448	/** Lock for synchronization of access to object_idr. */	450	/** Lock for synchronization of access to object_idr. */
449	spinlock_t table_lock;	451	spinlock_t table_lock;
450		452
451	void *driver_priv;	453	void *driver_priv;
452		454
453	struct list_head fbs;	455	struct list_head fbs;
454		456
455	wait_queue_head_t event_wait;	457	wait_queue_head_t event_wait;
456	struct list_head event_list;	458	struct list_head event_list;
457	int event_space;	459	int event_space;
458	};	460	};
459		461
460	#if 0	462	#if 0
461	/** Wait queue */	463	/** Wait queue */
462	struct drm_queue {	464	struct drm_queue {
463	atomic_t use_count; /*< Outstanding uses (+1) /	465	atomic_t use_count; /*< Outstanding uses (+1) /
464	atomic_t finalization; /*< Finalization in progress /	466	atomic_t finalization; /*< Finalization in progress /
465	atomic_t block_count; /*< Count of processes waiting /	467	atomic_t block_count; /*< Count of processes waiting /
466	atomic_t block_read; /*< Queue blocked for reads /	468	atomic_t block_read; /*< Queue blocked for reads /
467	wait_queue_head_t read_queue; /*< Processes waiting on block_read /	469	wait_queue_head_t read_queue; /*< Processes waiting on block_read /
468	atomic_t block_write; /*< Queue blocked for writes /	470	atomic_t block_write; /*< Queue blocked for writes /
469	wait_queue_head_t write_queue; /*< Processes waiting on block_write /	471	wait_queue_head_t write_queue; /*< Processes waiting on block_write /
470	atomic_t total_queued; /*< Total queued statistic /	472	atomic_t total_queued; /*< Total queued statistic /
471	atomic_t total_flushed; /*< Total flushes statistic /	473	atomic_t total_flushed; /*< Total flushes statistic /
472	atomic_t total_locks; /*< Total locks statistics /	474	atomic_t total_locks; /*< Total locks statistics /
473	enum drm_ctx_flags flags; /*< Context preserving and 2D-only /	475	enum drm_ctx_flags flags; /*< Context preserving and 2D-only /
474	struct drm_waitlist waitlist; /*< Pending buffers /	476	struct drm_waitlist waitlist; /*< Pending buffers /
475	wait_queue_head_t flush_queue; /*< Processes waiting until flush /	477	wait_queue_head_t flush_queue; /*< Processes waiting until flush /
476	};	478	};
477		479
478	/**	480	/**
479	* Lock data.	481	* Lock data.
480	*/	482	*/
481	struct drm_lock_data {	483	struct drm_lock_data {
482	struct drm_hw_lock hw_lock; /< Hardware lock /	484	struct drm_hw_lock hw_lock; /< Hardware lock /
483	/** Private of lock holder's file (NULL=kernel) */	485	/** Private of lock holder's file (NULL=kernel) */
484	struct drm_file *file_priv;	486	struct drm_file *file_priv;
485	wait_queue_head_t lock_queue; /*< Queue of blocked processes /	487	wait_queue_head_t lock_queue; /*< Queue of blocked processes /
486	unsigned long lock_time; /*< Time of last lock in jiffies /	488	unsigned long lock_time; /*< Time of last lock in jiffies /
487	spinlock_t spinlock;	489	spinlock_t spinlock;
488	uint32_t kernel_waiters;	490	uint32_t kernel_waiters;
489	uint32_t user_waiters;	491	uint32_t user_waiters;
490	int idle_has_lock;	492	int idle_has_lock;
491	};	493	};
492		494
493	/**	495	/**
494	* DMA data.	496	* DMA data.
495	*/	497	*/
496	struct drm_device_dma {	498	struct drm_device_dma {
497		499
498	struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /*< buffers, grouped by their size order /	500	struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /*< buffers, grouped by their size order /

Subversion Repositories Kolibri OS

(root)/drivers/include/drm/drmP.h – Rev 3747 → 3763