drmp.h

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	drm_device_dma_t  *dma;		/* Optional pointer for DMA support */

				/* Context support */
	int		  irq;		/* Interrupt used by board	   */
	__volatile__ long context_flag;	/* Context swapping flag	   */
	__volatile__ long interrupt_flag; /* Interruption handler flag	   */
	__volatile__ long dma_flag;	/* DMA dispatch flag		   */
	struct timer_list timer;	/* Timer for delaying ctx switch   */
	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 tq_struct  tq;
	cycles_t	  ctx_start;
	cycles_t	  lck_start;
#if __HAVE_DMA_HISTOGRAM
	drm_histogram_t	  histo;
#endif

				/* Callback to X server for context switch
				   and for heavy-handed reset. */
	char		  buf[DRM_BSZ]; /* Output buffer		   */
	char		  *buf_rp;	/* Read pointer			   */
	char		  *buf_wp;	/* Write pointer		   */
	char		  *buf_end;	/* End pointer			   */
	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 */

#if __REALLY_HAVE_AGP
	drm_agp_head_t    *agp;
#endif
	struct pci_dev *pdev;
#ifdef __alpha__
#if LINUX_VERSION_CODE < 0x020403
	struct pci_controler *hose;
#else
	struct pci_controller *hose;
#endif
#endif
	drm_sg_mem_t      *sg;  /* Scatter gather memory */
	unsigned long     *ctx_bitmap;
	void		  *dev_private;
	drm_sigdata_t     sigdata; /* For block_all_signals */
	sigset_t          sigmask;
} drm_device_t;


/* ================================================================
 * Internal function definitions
 */

				/* Misc. support (drm_init.h) */
extern int	     DRM(flags);
extern void	     DRM(parse_options)( char *s );
extern int           DRM(cpu_valid)( void );

				/* Driver support (drm_drv.h) */
extern int           DRM(version)(struct inode *inode, struct file *filp,
				  unsigned int cmd, unsigned long arg);
extern int           DRM(open)(struct inode *inode, struct file *filp);
extern int           DRM(release)(struct inode *inode, struct file *filp);
extern int           DRM(ioctl)(struct inode *inode, struct file *filp,
				unsigned int cmd, unsigned long arg);
extern int           DRM(lock)(struct inode *inode, struct file *filp,
			       unsigned int cmd, unsigned long arg);
extern int           DRM(unlock)(struct inode *inode, struct file *filp,
				 unsigned int cmd, unsigned long arg);

				/* Device support (drm_fops.h) */
extern int	     DRM(open_helper)(struct inode *inode, struct file *filp,
				      drm_device_t *dev);
extern int	     DRM(flush)(struct file *filp);
extern int	     DRM(release_fuck)(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 *buf, size_t count,
			       loff_t *off);
extern int	     DRM(write_string)(drm_device_t *dev, const char *s);
extern unsigned int  DRM(poll)(struct file *filp,
			       struct poll_table_struct *wait);

				/* Mapping support (drm_vm.h) */
#if LINUX_VERSION_CODE < 0x020317
extern unsigned long DRM(vm_nopage)(struct vm_area_struct *vma,
				    unsigned long address,
				    int unused);
extern unsigned long DRM(vm_shm_nopage)(struct vm_area_struct *vma,
					unsigned long address,
					int unused);
extern unsigned long DRM(vm_dma_nopage)(struct vm_area_struct *vma,
					unsigned long address,
					int unused);
extern unsigned long DRM(vm_sg_nopage)(struct vm_area_struct *vma,
				       unsigned long address,
				       int unused);
#else
				/* Return type changed in 2.3.23 */
extern struct page *DRM(vm_nopage)(struct vm_area_struct *vma,
				   unsigned long address,
				   int unused);
extern struct page *DRM(vm_shm_nopage)(struct vm_area_struct *vma,
				       unsigned long address,
				       int unused);
extern struct page *DRM(vm_dma_nopage)(struct vm_area_struct *vma,
				       unsigned long address,
				       int unused);
extern struct page *DRM(vm_sg_nopage)(struct vm_area_struct *vma,
				      unsigned long address,
				      int unused);
#endif
extern void	     DRM(vm_open)(struct vm_area_struct *vma);
extern void	     DRM(vm_close)(struct vm_area_struct *vma);
extern void	     DRM(vm_shm_close)(struct vm_area_struct *vma);
extern int	     DRM(mmap_dma)(struct file *filp,
				   struct vm_area_struct *vma);
extern int	     DRM(mmap)(struct file *filp, struct vm_area_struct *vma);

				/* Memory management support (drm_memory.h) */
extern void	     DRM(mem_init)(void);
extern int	     DRM(mem_info)(char *buf, char **start, off_t offset,
				   int request, int *eof, void *data);
extern void	     *DRM(alloc)(size_t size, int area);
extern void	     *DRM(realloc)(void *oldpt, size_t oldsize, size_t size,
				   int area);
extern char	     *DRM(strdup)(const char *s, int area);
extern void	     DRM(strfree)(const char *s, int area);
extern void	     DRM(free)(void *pt, size_t size, int area);
extern unsigned long DRM(alloc_pages)(int order, int area);
extern void	     DRM(free_pages)(unsigned long address, int order,
				     int area);
extern void	     *DRM(ioremap)(unsigned long offset, unsigned long size);
extern void	     DRM(ioremapfree)(void *pt, unsigned long size);

#if __REALLY_HAVE_AGP
extern agp_memory    *DRM(alloc_agp)(int pages, u32 type);
extern int           DRM(free_agp)(agp_memory *handle, int pages);
extern int           DRM(bind_agp)(agp_memory *handle, unsigned int start);
extern int           DRM(unbind_agp)(agp_memory *handle);
#endif

				/* Misc. IOCTL support (drm_ioctl.h) */
extern int	     DRM(irq_busid)(struct inode *inode, struct file *filp,
				    unsigned int cmd, unsigned long arg);
extern int	     DRM(getunique)(struct inode *inode, struct file *filp,
				    unsigned int cmd, unsigned long arg);
extern int	     DRM(setunique)(struct inode *inode, struct file *filp,
				    unsigned int cmd, unsigned long arg);
extern int	     DRM(getmap)(struct inode *inode, struct file *filp,
				 unsigned int cmd, unsigned long arg);
extern int	     DRM(getclient)(struct inode *inode, struct file *filp,
				    unsigned int cmd, unsigned long arg);
extern int	     DRM(getstats)(struct inode *inode, struct file *filp,
				   unsigned int cmd, unsigned long arg);

				/* Context IOCTL support (drm_context.h) */
extern int	     DRM(resctx)( struct inode *inode, struct file *filp,
				  unsigned int cmd, unsigned long arg );
extern int	     DRM(addctx)( struct inode *inode, struct file *filp,
				  unsigned int cmd, unsigned long arg );
extern int	     DRM(modctx)( struct inode *inode, struct file *filp,
				  unsigned int cmd, unsigned long arg );
extern int	     DRM(getctx)( struct inode *inode, struct file *filp,
				  unsigned int cmd, unsigned long arg );
extern int	     DRM(switchctx)( struct inode *inode, struct file *filp,
				     unsigned int cmd, unsigned long arg );
extern int	     DRM(newctx)( struct inode *inode, struct file *filp,
				  unsigned int cmd, unsigned long arg );
extern int	     DRM(rmctx)( struct inode *inode, struct file *filp,
				 unsigned int cmd, unsigned long arg );

extern int	     DRM(context_switch)(drm_device_t *dev, int old, int new);
extern int	     DRM(context_switch_complete)(drm_device_t *dev, int new);

#if __HAVE_CTX_BITMAP
extern int	     DRM(ctxbitmap_init)( drm_device_t *dev );
extern void	     DRM(ctxbitmap_cleanup)( drm_device_t *dev );
#endif

extern int	     DRM(setsareactx)( struct inode *inode, struct file *filp,
				       unsigned int cmd, unsigned long arg );
extern int	     DRM(getsareactx)( struct inode *inode, struct file *filp,
				       unsigned int cmd, unsigned long arg );

				/* Drawable IOCTL support (drm_drawable.h) */
extern int	     DRM(adddraw)(struct inode *inode, struct file *filp,
				  unsigned int cmd, unsigned long arg);
extern int	     DRM(rmdraw)(struct inode *inode, struct file *filp,
				 unsigned int cmd, unsigned long arg);


				/* Authentication IOCTL support (drm_auth.h) */
extern int	     DRM(add_magic)(drm_device_t *dev, drm_file_t *priv,
				    drm_magic_t magic);
extern int	     DRM(remove_magic)(drm_device_t *dev, drm_magic_t magic);
extern int	     DRM(getmagic)(struct inode *inode, struct file *filp,
				   unsigned int cmd, unsigned long arg);
extern int	     DRM(authmagic)(struct inode *inode, struct file *filp,
				    unsigned int cmd, unsigned long arg);


				/* Locking IOCTL support (drm_lock.h) */
extern int	     DRM(block)(struct inode *inode, struct file *filp,
				unsigned int cmd, unsigned long arg);
extern int	     DRM(unblock)(struct inode *inode, struct file *filp,
				  unsigned int cmd, unsigned long arg);
extern int	     DRM(lock_take)(__volatile__ unsigned int *lock,
				    unsigned int context);
extern int	     DRM(lock_transfer)(drm_device_t *dev,
					__volatile__ unsigned int *lock,
					unsigned int context);
extern int	     DRM(lock_free)(drm_device_t *dev,
				    __volatile__ unsigned int *lock,
				    unsigned int context);
extern int	     DRM(finish)(struct inode *inode, struct file *filp,
				 unsigned int cmd, unsigned long arg);
extern int	     DRM(flush_unblock)(drm_device_t *dev, int context,
					drm_lock_flags_t flags);
extern int	     DRM(flush_block_and_flush)(drm_device_t *dev, int context,
						drm_lock_flags_t flags);
extern int           DRM(notifier)(void *priv);

				/* Buffer management support (drm_bufs.h) */
extern int	     DRM(order)( unsigned long size );
extern int	     DRM(addmap)( struct inode *inode, struct file *filp,
				  unsigned int cmd, unsigned long arg );
extern int	     DRM(rmmap)( struct inode *inode, struct file *filp,
				 unsigned int cmd, unsigned long arg );
#if __HAVE_DMA
extern int	     DRM(addbufs)( struct inode *inode, struct file *filp,
				   unsigned int cmd, unsigned long arg );
extern int	     DRM(infobufs)( struct inode *inode, struct file *filp,
				    unsigned int cmd, unsigned long arg );
extern int	     DRM(markbufs)( struct inode *inode, struct file *filp,
				    unsigned int cmd, unsigned long arg );
extern int	     DRM(freebufs)( struct inode *inode, struct file *filp,
				    unsigned int cmd, unsigned long arg );
extern int	     DRM(mapbufs)( struct inode *inode, struct file *filp,
				   unsigned int cmd, unsigned long arg );

				/* DMA support (drm_dma.h) */
extern int	     DRM(dma_setup)(drm_device_t *dev);
extern void	     DRM(dma_takedown)(drm_device_t *dev);
extern void	     DRM(free_buffer)(drm_device_t *dev, drm_buf_t *buf);
extern void	     DRM(reclaim_buffers)(drm_device_t *dev, pid_t pid);
#if __HAVE_OLD_DMA
/* GH: This is a dirty hack for now...
 */
extern void	     DRM(clear_next_buffer)(drm_device_t *dev);
extern int	     DRM(select_queue)(drm_device_t *dev,
				       void (*wrapper)(unsigned long));
extern int	     DRM(dma_enqueue)(drm_device_t *dev, drm_dma_t *dma);
extern int	     DRM(dma_get_buffers)(drm_device_t *dev, drm_dma_t *dma);
#endif
#if __HAVE_DMA_IRQ
extern int           DRM(control)( struct inode *inode, struct file *filp,
				   unsigned int cmd, unsigned long arg );
extern int           DRM(irq_install)( drm_device_t *dev, int irq );
extern int           DRM(irq_uninstall)( drm_device_t *dev );
extern void          DRM(dma_service)( int irq, void *device,
				       struct pt_regs *regs );
#if __HAVE_DMA_IRQ_BH
extern void          DRM(dma_immediate_bh)( void *dev );
#endif
#endif
#if DRM_DMA_HISTOGRAM
extern int	     DRM(histogram_slot)(unsigned long count);
extern void	     DRM(histogram_compute)(drm_device_t *dev, drm_buf_t *buf);
#endif

				/* Buffer list support (drm_lists.h) */
#if __HAVE_DMA_WAITLIST
extern int	     DRM(waitlist_create)(drm_waitlist_t *bl, int count);
extern int	     DRM(waitlist_destroy)(drm_waitlist_t *bl);
extern int	     DRM(waitlist_put)(drm_waitlist_t *bl, drm_buf_t *buf);
extern drm_buf_t     *DRM(waitlist_get)(drm_waitlist_t *bl);
#endif
#if __HAVE_DMA_FREELIST
extern int	     DRM(freelist_create)(drm_freelist_t *bl, int count);
extern int	     DRM(freelist_destroy)(drm_freelist_t *bl);
extern int	     DRM(freelist_put)(drm_device_t *dev, drm_freelist_t *bl,
				       drm_buf_t *buf);
extern drm_buf_t     *DRM(freelist_get)(drm_freelist_t *bl, int block);
#endif
#endif /* __HAVE_DMA */

#if __REALLY_HAVE_AGP
				/* AGP/GART support (drm_agpsupport.h) */
extern drm_agp_head_t *DRM(agp_init)(void);
extern void           DRM(agp_uninit)(void);
extern int            DRM(agp_acquire)(struct inode *inode, struct file *filp,
				       unsigned int cmd, unsigned long arg);
extern void           DRM(agp_do_release)(void);
extern int            DRM(agp_release)(struct inode *inode, struct file *filp,
				       unsigned int cmd, unsigned long arg);
extern int            DRM(agp_enable)(struct inode *inode, struct file *filp,
				      unsigned int cmd, unsigned long arg);
extern int            DRM(agp_info)(struct inode *inode, struct file *filp,
				    unsigned int cmd, unsigned long arg);
extern int            DRM(agp_alloc)(struct inode *inode, struct file *filp,
				     unsigned int cmd, unsigned long arg);
extern int            DRM(agp_free)(struct inode *inode, struct file *filp,
				    unsigned int cmd, unsigned long arg);
extern int            DRM(agp_unbind)(struct inode *inode, struct file *filp,
				      unsigned int cmd, unsigned long arg);
extern int            DRM(agp_bind)(struct inode *inode, struct file *filp,
				    unsigned int cmd, unsigned long arg);
extern agp_memory     *DRM(agp_allocate_memory)(size_t pages, u32 type);
extern int            DRM(agp_free_memory)(agp_memory *handle);
extern int            DRM(agp_bind_memory)(agp_memory *handle, off_t start);
extern int            DRM(agp_unbind_memory)(agp_memory *handle);
#endif

				/* Stub support (drm_stub.h) */
int                   DRM(stub_register)(const char *name,
					 struct file_operations *fops,
					 drm_device_t *dev);
int                   DRM(stub_unregister)(int minor);

				/* Proc support (drm_proc.h) */
extern struct proc_dir_entry *DRM(proc_init)(drm_device_t *dev,
					     int minor,
					     struct proc_dir_entry *root,
					     struct proc_dir_entry **dev_root);
extern int            DRM(proc_cleanup)(int minor,
					struct proc_dir_entry *root,
					struct proc_dir_entry *dev_root);

#if __HAVE_SG
				/* Scatter Gather Support (drm_scatter.h) */
extern void           DRM(sg_cleanup)(drm_sg_mem_t *entry);
extern int            DRM(sg_alloc)(struct inode *inode, struct file *filp,
				    unsigned int cmd, unsigned long arg);
extern int            DRM(sg_free)(struct inode *inode, struct file *filp,
				   unsigned int cmd, unsigned long arg);
#endif

                               /* ATI PCIGART support (ati_pcigart.h) */
extern int            DRM(ati_pcigart_init)(drm_device_t *dev,
					    unsigned long *addr,
					    dma_addr_t *bus_addr);
extern int            DRM(ati_pcigart_cleanup)(drm_device_t *dev,
					       unsigned long addr,
					       dma_addr_t bus_addr);

#endif /* __KERNEL__ */
#endif