First pass merge of XFree86 4.2.0 import.X_4_2_0-20020128-merge

1 files changed, 310 insertions, 413 deletions

diff --git a/bsd/drmP.h b/bsd/drmP.h
index 7a1159c7..ead40f86 100644
--- a/bsd/drmP.h
+++ b/bsd/drmP.h
@@ -1,8 +1,8 @@
-/* drmP.h -- Private header for Direct Rendering Manager -*- c -*-
+/* drmP.h -- Private header for Direct Rendering Manager -*- linux-c -*-
  * Created: Mon Jan  4 10:05:05 1999 by faith@precisioninsight.com
- * Revised: Tue Oct 12 08:51:07 1999 by faith@precisioninsight.com
  *
  * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
  * All rights reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
@@ -11,225 +11,119 @@
  * 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
- * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * 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.
- * 
- * $PI: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/drmP.h,v 1.58 1999/08/30 13:05:00 faith Exp $
- * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/bsd/drm/kernel/drmP.h,v 1.3 2001/03/06 16:45:26 dawes Exp $
- * 
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Rickard E. (Rik) Faith <faith@valinux.com>
+ *    Gareth Hughes <gareth@valinux.com>
  */
 
 #ifndef _DRM_P_H_
 #define _DRM_P_H_
 
-#ifdef _KERNEL
-#include <sys/param.h>
-#include <sys/queue.h>
-#include <sys/malloc.h>
-#include <sys/kernel.h>
-#include <sys/module.h>
-#include <sys/systm.h>
-#include <sys/conf.h>
-#include <sys/stat.h>
-#include <sys/proc.h>
-#include <sys/lock.h>
-#include <sys/fcntl.h>
-#include <sys/uio.h>
-#include <sys/filio.h>
-#include <sys/sysctl.h>
-#include <sys/select.h>
-#include <sys/bus.h>
-#if __FreeBSD_version >= 400005
-#include <sys/taskqueue.h>
-#endif
+#if defined(_KERNEL) || defined(__KERNEL__)
 
-#if __FreeBSD_version >= 400006
-#define DRM_AGP
+/* DRM template customization defaults
+ */
+#ifndef __HAVE_AGP
+#define __HAVE_AGP		0
 #endif
-
-#ifdef DRM_AGP
-#include <pci/agpvar.h>
+#ifndef __HAVE_MTRR
+#define __HAVE_MTRR		0
+#endif
+#ifndef __HAVE_CTX_BITMAP
+#define __HAVE_CTX_BITMAP	0
+#endif
+#ifndef __HAVE_DMA
+#define __HAVE_DMA		0
+#endif
+#ifndef __HAVE_DMA_IRQ
+#define __HAVE_DMA_IRQ		0
+#endif
+#ifndef __HAVE_DMA_WAITLIST
+#define __HAVE_DMA_WAITLIST	0
+#endif
+#ifndef __HAVE_DMA_FREELIST
+#define __HAVE_DMA_FREELIST	0
+#endif
+#ifndef __HAVE_DMA_HISTOGRAM
+#define __HAVE_DMA_HISTOGRAM	0
 #endif
 
-#include "drm.h"
+#define DRM_DEBUG_CODE 0	  /* Include debugging code (if > 1, then
+				     also include looping detection. */
 
-typedef u_int32_t atomic_t;
-typedef u_int32_t cycles_t;
-typedef u_int32_t spinlock_t;
-#define atomic_set(p, v)	(*(p) = (v))
-#define atomic_read(p)		(*(p))
-#define atomic_inc(p)		atomic_add_int(p, 1)
-#define atomic_dec(p)		atomic_subtract_int(p, 1)
-#define atomic_add(n, p)	atomic_add_int(p, n)
-#define atomic_sub(n, p)	atomic_subtract_int(p, n)
-
-/* The version number here is a guess */
-#if __FreeBSD_version >= 500010
-#define callout_init(a)		callout_init(a, 0)
-#endif
+typedef struct drm_device drm_device_t;
+typedef struct drm_file drm_file_t;
 
-/* Fake this */
-static __inline u_int32_t
-test_and_set_bit(int b, volatile u_int32_t *p)
-{
-	int s = splhigh();
-	u_int32_t m = 1<<b;
-	u_int32_t r = *p & m;
-	*p |= m;
-	splx(s);
-	return r;
-}
-
-static __inline void
-clear_bit(int b, volatile u_int32_t *p)
-{
-    atomic_clear_int(p + (b >> 5), 1 << (b & 0x1f));
-}
-
-static __inline void
-set_bit(int b, volatile u_int32_t *p)
-{
-    atomic_set_int(p + (b >> 5), 1 << (b & 0x1f));
-}
-
-static __inline int
-test_bit(int b, volatile u_int32_t *p)
-{
-    return p[b >> 5] & (1 << (b & 0x1f));
-}
-
-static __inline int
-find_first_zero_bit(volatile u_int32_t *p, int max)
-{
-    int b;
-
-    for (b = 0; b < max; b += 32) {
-	if (p[b >> 5] != ~0) {
-	    for (;;) {
-		if ((p[b >> 5] & (1 << (b & 0x1f))) == 0)
-		    return b;
-		b++;
-	    }
-	}
-    }
-    return max;
-}
-
-#define spldrm()		spltty()
-
-#define memset(p, v, s)		bzero(p, s)
-
-/*
- * Fake out the module macros for versions of FreeBSD where they don't
- * exist.
- */
-#if __FreeBSD_version < 400002
+/* There's undoubtably more of this file to go into these OS dependent ones. */
 
-#define MODULE_VERSION(a,b)		struct __hack
-#define MODULE_DEPEND(a,b,c,d,e)	struct __hack
+#include "drm_os_freebsd.h"
 
-#endif
+#include "drm.h"
 
-#define DRM_DEBUG_CODE 0	  /* Include debugging code (if > 1, then
-				     also include looping detection. */
-#define DRM_DMA_HISTOGRAM 1	  /* Make histogram of DMA latency. */
+/* Begin the DRM... */
 
 #define DRM_HASH_SIZE	      16 /* Size of key hash table		  */
 #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_BSZ		      1024 /* Buffer size for /dev/drm? output	  */
-#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_FLAG_NOCTX	  0x02
 
-#define DRM_MEM_DMA	  0
-#define DRM_MEM_SAREA	  1
-#define DRM_MEM_DRIVER	  2
-#define DRM_MEM_MAGIC	  3
-#define DRM_MEM_IOCTLS	  4
-#define DRM_MEM_MAPS	  5
-#define DRM_MEM_VMAS	  6
-#define DRM_MEM_BUFS	  7
-#define DRM_MEM_SEGS	  8
-#define DRM_MEM_PAGES	  9
-#define DRM_MEM_FILES	 10
-#define DRM_MEM_QUEUES	 11
-#define DRM_MEM_CMDS	 12
-#define DRM_MEM_MAPPINGS 13
-#define DRM_MEM_BUFLISTS 14
+#define DRM_MEM_DMA	   0
+#define DRM_MEM_SAREA	   1
+#define DRM_MEM_DRIVER	   2
+#define DRM_MEM_MAGIC	   3
+#define DRM_MEM_IOCTLS	   4
+#define DRM_MEM_MAPS	   5
+#define DRM_MEM_VMAS	   6
+#define DRM_MEM_BUFS	   7
+#define DRM_MEM_SEGS	   8
+#define DRM_MEM_PAGES	   9
+#define DRM_MEM_FILES	  10
+#define DRM_MEM_QUEUES	  11
+#define DRM_MEM_CMDS	  12
+#define DRM_MEM_MAPPINGS  13
+#define DRM_MEM_BUFLISTS  14
 #define DRM_MEM_AGPLISTS  15
 #define DRM_MEM_TOTALAGP  16
 #define DRM_MEM_BOUNDAGP  17
 #define DRM_MEM_CTXBITMAP 18
+#define DRM_MEM_STUB      19
+#define DRM_MEM_SGLISTS   20
 
 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
 
 				/* Backward compatibility section */
+				/* _PAGE_WT changed to _PAGE_PWT in 2.2.6 */
 #ifndef _PAGE_PWT
-				/* The name of _PAGE_WT was changed to
-				   _PAGE_PWT in Linux 2.2.6 */
 #define _PAGE_PWT _PAGE_WT
 #endif
 
-#define __drm_dummy_lock(lock) (*(__volatile__ unsigned int *)lock)
-#define _DRM_CAS(lock,old,new,__ret)				       \
-	do {							       \
-		int __dummy;	/* Can't mark eax as clobbered */      \
-		__asm__ __volatile__(				       \
-			"lock ; cmpxchg %4,%1\n\t"		       \
-			"setnz %0"				       \
-			: "=d" (__ret),				       \
-			  "=m" (__drm_dummy_lock(lock)),	       \
-			  "=a" (__dummy)			       \
-			: "2" (old),				       \
-			  "r" (new));				       \
-	} while (0)
-
+				/* Mapping helper macros */
+#define DRM_IOREMAP(map)						\
+	(map)->handle = DRM(ioremap)( (map)->offset, (map)->size )
 
-
-				/* Macros to make printk easier */
-#define DRM_ERROR(fmt, arg...) \
-	printf("error: " "[" DRM_NAME ":" __FUNCTION__ "] *ERROR* " fmt , ##arg)
-#define DRM_MEM_ERROR(area, fmt, arg...) \
-	printf("error: " "[" DRM_NAME ":" __FUNCTION__ ":%s] *ERROR* " fmt , \
-	       drm_mem_stats[area].name , ##arg)
-#define DRM_INFO(fmt, arg...)  printf("info: " "[" DRM_NAME "] " fmt , ##arg)
-
-#if DRM_DEBUG_CODE
-#define DRM_DEBUG(fmt, arg...)						  \
-	do {								  \
-		if (drm_flags&DRM_FLAG_DEBUG)				  \
-			printf("[" DRM_NAME ":" __FUNCTION__ "] " fmt ,	  \
-			       ##arg);					  \
+#define DRM_IOREMAPFREE(map)						\
+	do {								\
+		if ( (map)->handle && (map)->size )			\
+			DRM(ioremapfree)( (map)->handle, (map)->size );	\
 	} while (0)
-#else
-#define DRM_DEBUG(fmt, arg...)		 do { } while (0)
-#endif
-
-#define DRM_PROC_LIMIT (PAGE_SIZE-80)
-
-#define DRM_SYSCTL_PRINT(fmt, arg...)		\
-  snprintf(buf, sizeof(buf), fmt, ##arg);	\
-  error = SYSCTL_OUT(req, buf, strlen(buf));	\
-  if (error) return error;
-
-#define DRM_SYSCTL_PRINT_RET(ret, fmt, arg...)	\
-  snprintf(buf, sizeof(buf), fmt, ##arg);	\
-  error = SYSCTL_OUT(req, buf, strlen(buf));	\
-  if (error) { ret; return error; }
 
 				/* Internal types and structures */
 #define DRM_ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
@@ -240,15 +134,25 @@ find_first_zero_bit(volatile u_int32_t *p, int max)
 #define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
 #define DRM_WAITCOUNT(dev,idx) DRM_BUFCOUNT(&dev->queuelist[idx]->waitlist)
 
+#define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do {	\
+	(_map) = (_dev)->context_sareas[_ctx];		\
+} while(0)
+
+
+typedef struct drm_pci_list {
+	u16 vendor;
+	u16 device;
+} drm_pci_list_t;
+
 typedef struct drm_ioctl_desc {
-	d_ioctl_t	     *func;
+	d_ioctl_t            *func;
 	int		     auth_needed;
 	int		     root_only;
 } drm_ioctl_desc_t;
 
 typedef struct drm_devstate {
 	pid_t		  owner;	/* X server pid holding x_lock */
-	
+
 } drm_devstate_t;
 
 typedef struct drm_magic_entry {
@@ -258,8 +162,8 @@ typedef struct drm_magic_entry {
 } drm_magic_entry_t;
 
 typedef struct drm_magic_head {
-       struct drm_magic_entry *head;
-       struct drm_magic_entry *tail;
+	struct drm_magic_entry *head;
+	struct drm_magic_entry *tail;
 } drm_magic_head_t;
 
 typedef struct drm_vma_entry {
@@ -279,7 +183,7 @@ typedef struct drm_buf {
 	struct drm_buf	  *next;       /* Kernel-only: used for free list    */
 	__volatile__ int  waiting;     /* On kernel DMA queue		     */
 	__volatile__ int  pending;     /* On hardware DMA queue		     */
-	int		  dma_wait;    /* Processes waiting		     */
+	wait_queue_head_t dma_wait;    /* Processes waiting		     */
 	pid_t		  pid;	       /* PID of holding process	     */
 	int		  context;     /* Kernel queue for this buffer	     */
 	int		  while_locked;/* Dispatch this buffer while locked  */
@@ -292,15 +196,15 @@ typedef struct drm_buf {
 		DRM_LIST_RECLAIM = 5
 	}		  list;	       /* Which list we're on		     */
 
-	void *dev_private;
-	int dev_priv_size;
-
 #if DRM_DMA_HISTOGRAM
-	struct timespec	  time_queued;	   /* Queued to kernel DMA queue     */
-	struct timespec	  time_dispatched; /* Dispatched to hardware	     */
-	struct timespec	  time_completed;  /* Completed by hardware	     */
-	struct timespec	  time_freed;	   /* Back on freelist		     */
+	cycles_t	  time_queued;	   /* Queued to kernel DMA queue     */
+	cycles_t	  time_dispatched; /* Dispatched to hardware	     */
+	cycles_t	  time_completed;  /* Completed by hardware	     */
+	cycles_t	  time_freed;	   /* Back on freelist		     */
 #endif
+
+	int		  dev_priv_size; /* Size of buffer private stoarge   */
+	void		  *dev_private;  /* Per-buffer private storage       */
 } drm_buf_t;
 
 #if DRM_DMA_HISTOGRAM
@@ -309,14 +213,14 @@ typedef struct drm_buf {
 #define DRM_DMA_HISTOGRAM_NEXT(current)	 ((current)*10)
 typedef struct drm_histogram {
 	atomic_t	  total;
-	
+
 	atomic_t	  queued_to_dispatched[DRM_DMA_HISTOGRAM_SLOTS];
 	atomic_t	  dispatched_to_completed[DRM_DMA_HISTOGRAM_SLOTS];
 	atomic_t	  completed_to_freed[DRM_DMA_HISTOGRAM_SLOTS];
-	
+
 	atomic_t	  queued_to_completed[DRM_DMA_HISTOGRAM_SLOTS];
 	atomic_t	  queued_to_freed[DRM_DMA_HISTOGRAM_SLOTS];
-	
+
 	atomic_t	  dma[DRM_DMA_HISTOGRAM_SLOTS];
 	atomic_t	  schedule[DRM_DMA_HISTOGRAM_SLOTS];
 	atomic_t	  ctx[DRM_DMA_HISTOGRAM_SLOTS];
@@ -332,20 +236,20 @@ typedef struct drm_waitlist {
 	drm_buf_t	  **rp;		/* Read pointer			   */
 	drm_buf_t	  **wp;		/* Write pointer		   */
 	drm_buf_t	  **end;	/* End pointer			   */
-	spinlock_t	  read_lock;
-	spinlock_t	  write_lock;
+	DRM_OS_SPINTYPE	  read_lock;
+	DRM_OS_SPINTYPE	  write_lock;
 } drm_waitlist_t;
 
 typedef struct drm_freelist {
 	int		  initialized; /* Freelist in use		   */
 	atomic_t	  count;       /* Number of free buffers	   */
 	drm_buf_t	  *next;       /* End pointer			   */
-	
-	int		  waiting;     /* Processes waiting on free bufs   */
+
+	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	   */
-	struct simplelock	  lock;	       /* hope this doesn't need to be linux compatible */
+	DRM_OS_SPINTYPE   lock;
 } drm_freelist_t;
 
 typedef struct drm_buf_entry {
@@ -365,7 +269,7 @@ typedef struct drm_hw_lock {
 } drm_hw_lock_t;
 
 typedef TAILQ_HEAD(drm_file_list, drm_file) drm_file_list_t;
-typedef struct drm_file {
+struct drm_file {
 	TAILQ_ENTRY(drm_file) link;
 	int		  authenticated;
 	int		  minor;
@@ -375,38 +279,40 @@ typedef struct drm_file {
 	drm_magic_t	  magic;
 	unsigned long	  ioctl_count;
 	struct drm_device *devXX;
-} drm_file_t;
-
+};
 
 typedef 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	    */
-	int		  read_queue;	/* Processes waiting on block_read  */
+	wait_queue_head_t read_queue;	/* Processes waiting on block_read  */
 	atomic_t	  block_write;	/* Queue blocked for writes	    */
-	int		  write_queue;	/* Processes waiting on block_write */
+	wait_queue_head_t write_queue;	/* Processes waiting on block_write */
+#if 1
 	atomic_t	  total_queued;	/* Total queued statistic	    */
 	atomic_t	  total_flushed;/* Total flushes statistic	    */
 	atomic_t	  total_locks;	/* Total locks statistics	    */
+#endif
 	drm_ctx_flags_t	  flags;	/* Context preserving and 2D-only   */
 	drm_waitlist_t	  waitlist;	/* Pending buffers		    */
-	int		  flush_queue;	/* Processes waiting until flush    */
+	wait_queue_head_t flush_queue;	/* Processes waiting until flush    */
 } drm_queue_t;
 
 typedef struct drm_lock_data {
 	drm_hw_lock_t	  *hw_lock;	/* Hardware lock		   */
 	pid_t		  pid;		/* PID of lock holder (0=kernel)   */
-	int		  lock_queue;	/* Queue of blocked processes	   */
+	wait_queue_head_t lock_queue;	/* Queue of blocked processes	   */
 	unsigned long	  lock_time;	/* Time of last lock in jiffies	   */
 } drm_lock_data_t;
 
 typedef struct drm_device_dma {
+#if 0
 				/* Performance Counters */
 	atomic_t	  total_prio;	/* Total DRM_DMA_PRIORITY	   */
 	atomic_t	  total_bytes;	/* Total bytes DMA'd		   */
 	atomic_t	  total_dmas;	/* Total DMA buffers dispatched	   */
-	
+
 	atomic_t	  total_missed_dma;  /* Missed drm_do_dma	    */
 	atomic_t	  total_missed_lock; /* Missed lock in drm_do_dma   */
 	atomic_t	  total_missed_free; /* Missed drm_free_this_buffer */
@@ -415,27 +321,28 @@ typedef struct drm_device_dma {
 	atomic_t	  total_tried;	/* Tried next_buffer		    */
 	atomic_t	  total_hit;	/* Sent next_buffer		    */
 	atomic_t	  total_lost;	/* Lost interrupt		    */
+#endif
 
 	drm_buf_entry_t	  bufs[DRM_MAX_ORDER+1];
 	int		  buf_count;
 	drm_buf_t	  **buflist;	/* Vector of pointers info bufs	   */
-	int		  seg_count; 
+	int		  seg_count;
 	int		  page_count;
-	vm_offset_t	  *pagelist;
+	unsigned long	  *pagelist;
 	unsigned long	  byte_count;
 	enum {
-	   _DRM_DMA_USE_AGP = 0x01
+		_DRM_DMA_USE_AGP = 0x01,
+		_DRM_DMA_USE_SG  = 0x02
 	} flags;
 
 				/* DMA support */
 	drm_buf_t	  *this_buffer;	/* Buffer being sent		   */
 	drm_buf_t	  *next_buffer; /* Selected buffer to send	   */
 	drm_queue_t	  *next_queue;	/* Queue from which buffer selected*/
-	int		   waiting;	/* Processes waiting on free bufs  */
+	wait_queue_head_t waiting;	/* Processes waiting on free bufs  */
 } drm_device_dma_t;
 
-#ifdef DRM_AGP
-
+#if __REALLY_HAVE_AGP
 typedef struct drm_agp_mem {
 	void               *handle;
 	unsigned long      bound; /* address */
@@ -454,27 +361,45 @@ typedef struct drm_agp_head {
 	int                acquired;
 	unsigned long      base;
    	int 		   agp_mtrr;
+	int		   cant_use_aperture;
+	unsigned long	   page_mask;
 } drm_agp_head_t;
-
 #endif
 
-typedef struct drm_device {
+typedef struct drm_sg_mem {
+	unsigned long   handle;
+	void            *virtual;
+	int             pages;
+	struct page     **pagelist;
+} drm_sg_mem_t;
+
+typedef struct drm_sigdata {
+	int           context;
+	drm_hw_lock_t *lock;
+} drm_sigdata_t;
+
+typedef TAILQ_HEAD(drm_map_list, drm_map_list_entry) drm_map_list_t;
+typedef struct drm_map_list_entry {
+	TAILQ_ENTRY(drm_map_list_entry) link;
+	drm_map_t	*map;
+} drm_map_list_entry_t;
+
+struct drm_device {
 	const char	  *name;	/* Simple driver name		   */
 	char		  *unique;	/* Unique identifier: e.g., busid  */
 	int		  unique_len;	/* Length of unique field	   */
 	device_t	  device;	/* Device instance from newbus     */
 	dev_t		  devnode;	/* Device number for mknod	   */
 	char		  *devname;	/* For /proc/interrupts		   */
-	
+
 	int		  blocked;	/* Blocked due to VC switch?	   */
 	int		  flags;	/* Flags to open(2)		   */
 	int		  writable;	/* Opened with FWRITE		   */
 	struct proc_dir_entry *root;	/* Root for this device's entries  */
 
 				/* Locks */
-	struct simplelock count_lock;	/* For inuse, open_count, buf_use  */
-	struct lock	  dev_lock;	/* For others			   */
-
+	DRM_OS_SPINTYPE	  count_lock;	/* For inuse, open_count, buf_use  */
+	struct lock       dev_lock;	/* For others			   */
 				/* Usage Counters */
 	int		  open_count;	/* Outstanding files open	   */
 	atomic_t	  ioctl_count;	/* Outstanding IOCTLs pending	   */
@@ -482,26 +407,22 @@ typedef struct drm_device {
 	int		  buf_use;	/* Buffers in use -- cannot alloc  */
 	atomic_t	  buf_alloc;	/* Buffer allocation in progress   */
 
-				/* Performance Counters */
-	atomic_t	  total_open;
-	atomic_t	  total_close;
-	atomic_t	  total_ioctl;
-	atomic_t	  total_irq;	/* Total interruptions		   */
-	atomic_t	  total_ctx;	/* Total context switches	   */
-	
-	atomic_t	  total_locks;
-	atomic_t	  total_unlocks;
-	atomic_t	  total_contends;
-	atomic_t	  total_sleeps;
+				/* Performance counters */
+	unsigned long     counters;
+	drm_stat_type_t   types[15];
+	atomic_t          counts[15];
 
 				/* Authentication */
 	drm_file_list_t   files;
 	drm_magic_head_t  magiclist[DRM_HASH_SIZE];
 
 				/* Memory management */
-	drm_map_t	  **maplist;	/* Vector of pointers to regions   */
+	drm_map_list_t	  *maplist;	/* Linked list of regions	   */
 	int		  map_count;	/* Number of mappable regions	   */
 
+	drm_map_t	  **context_sareas;
+	int		  max_context;
+
 	drm_vma_entry_t	  *vmalist;	/* List of vmas (for debugging)	   */
 	drm_lock_data_t	  lock;		/* Information on hardware lock	   */
 
@@ -513,223 +434,199 @@ typedef struct drm_device {
 	drm_device_dma_t  *dma;		/* Optional pointer for DMA support */
 
 				/* Context support */
-	struct resource   *irq;		/* Interrupt used by board	   */
+	int		  irq;		/* Interrupt used by board	   */
+	struct resource   *irqr;	/* Resource for interrupt used by board	   */
 	void		  *irqh;	/* Handle from bus_setup_intr      */
-	__volatile__ long  context_flag; /* Context swapping flag	   */
-	__volatile__ long  interrupt_flag;/* Interruption handler flag	   */
-	__volatile__ long  dma_flag;	 /* DMA dispatch flag		   */
-	struct callout	  timer;	/* Timer for delaying ctx switch   */
-	int		  context_wait; /* Processes waiting on ctx switch */
+	__volatile__ long context_flag;	/* Context swapping flag	   */
+	__volatile__ long interrupt_flag; /* Interruption handler flag	   */
+	__volatile__ long dma_flag;	/* DMA dispatch flag		   */
+	struct callout    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		   */
-	int		  last_switch;	/* Time at last context switch  */
+	unsigned long	  last_switch;	/* jiffies at last context switch  */
 #if __FreeBSD_version >= 400005
-	struct task	  task;
+	struct task       task;
 #endif
-	struct timespec	  ctx_start;
-	struct timespec	  lck_start;
-#if DRM_DMA_HISTOGRAM
+	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 sigio	  *buf_sigio;   /* Processes waiting for SIGIO	   */
+	struct sigio      *buf_sigio;	/* Processes waiting for SIGIO     */
 	struct selinfo    buf_sel;	/* Workspace for select/poll       */
-	int		  buf_readers;	/* Processes waiting to read	   */
-	int		  buf_writers;	/* Processes waiting to ctx switch */
-	int		  buf_selecting; /* True if poll sleeper           */
+	int               buf_selecting;/* True if poll sleeper            */
+	wait_queue_head_t buf_readers;	/* Processes waiting to read	   */
+	wait_queue_head_t buf_writers;	/* Processes waiting to ctx switch */
 
 				/* Sysctl support */
 	struct drm_sysctl_info *sysctl;
 
-#ifdef DRM_AGP
+#if __REALLY_HAVE_AGP
 	drm_agp_head_t    *agp;
 #endif
-	u_int32_t	  *ctx_bitmap;
+	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_device_t;
-
-
-				/* Internal function definitions */
-
-				/* Misc. support (init.c) */
-extern int	     drm_flags;
-extern void	     drm_parse_options(char *s);
-
-
-				/* Device support (fops.c) */
-extern drm_file_t *drm_find_file_by_proc(drm_device_t *dev, struct proc *p);
-extern int drm_open_helper(dev_t kdev, int flags, int fmt, struct proc *p,
-			   drm_device_t *dev);
-extern d_close_t     drm_close;
-extern d_read_t	     drm_read;
-extern d_write_t     drm_write;
-extern d_poll_t	     drm_poll;
-extern int	     drm_fsetown(dev_t kdev, u_long cmd, caddr_t data,
-				 int flags, struct proc *p);
-extern int	     drm_fgetown(dev_t kdev, u_long cmd, caddr_t data,
-				 int flags, struct proc *p);
-extern int	     drm_write_string(drm_device_t *dev, const char *s);
-
-#if 0
-				/* Mapping support (vm.c) */
-extern unsigned long drm_vm_nopage(struct vm_area_struct *vma,
-				   unsigned long address,
-				   int write_access);
-extern unsigned long drm_vm_shm_nopage(struct vm_area_struct *vma,
-				       unsigned long address,
-				       int write_access);
-extern unsigned long drm_vm_dma_nopage(struct vm_area_struct *vma,
-				       unsigned long address,
-				       int write_access);
-extern void	     drm_vm_open(struct vm_area_struct *vma);
-extern void	     drm_vm_close(struct vm_area_struct *vma);
-extern int	     drm_mmap_dma(struct file *filp,
-				  struct vm_area_struct *vma);
+	drm_sigdata_t     sigdata; /* For block_all_signals */
+	sigset_t          sigmask;
+};
+
+extern int	     DRM(flags);
+extern void	     DRM(parse_options)( char *s );
+extern int           DRM(cpu_valid)( void );
+
+				/* Authentication (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);
+
+				/* Driver support (drm_drv.h) */
+extern int           DRM(version)( DRM_OS_IOCTL );
+extern int	     DRM(write_string)(drm_device_t *dev, const char *s);
+
+				/* Memory management support (drm_memory.h) */
+extern void	     DRM(mem_init)(void);
+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)(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
-extern d_mmap_t	     drm_mmap;
 
-				/* Proc support (proc.c) */
-extern int	     drm_sysctl_init(drm_device_t *dev);
-extern int	     drm_sysctl_cleanup(drm_device_t *dev);
+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);
 
-				/* Memory management support (memory.c) */
-extern void	     drm_mem_init(void);
+#if __HAVE_CTX_BITMAP
+extern int	     DRM(ctxbitmap_init)( drm_device_t *dev );
+extern void	     DRM(ctxbitmap_cleanup)( drm_device_t *dev );
+extern void          DRM(ctxbitmap_free)( drm_device_t *dev, int ctx_handle );
+extern int           DRM(ctxbitmap_next)( drm_device_t *dev );
+#endif
 
-#if __FreeBSD_version < 411000
-#define DRM_SYSCTL_HANDLER_ARGS SYSCTL_HANDLER_ARGS
-#else
-#define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS)
+				/* Locking IOCTL support (drm_lock.h) */
+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(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 );
+
+#if __HAVE_DMA
+				/* 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(irq_install)( drm_device_t *dev, int irq );
+extern int           DRM(irq_uninstall)( drm_device_t *dev );
+extern void          DRM(dma_service)( DRM_OS_IRQ_ARGS );
+#if __HAVE_DMA_IRQ_BH
+extern void          DRM(dma_immediate_bh)( DRM_OS_TASKQUEUE_ARGS );
 #endif
-extern int	     drm_mem_info DRM_SYSCTL_HANDLER_ARGS;
-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(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);
-
-#ifdef DRM_AGP
-extern void	    *drm_alloc_agp(int pages, u_int32_t type);
-extern int           drm_free_agp(void *handle, int pages);
-extern int           drm_bind_agp(void *handle, unsigned int start);
-extern int           drm_unbind_agp(void *handle);
 #endif
-
-				/* Buffer management support (bufs.c) */
-extern int	     drm_order(unsigned long size);
-extern d_ioctl_t     drm_addmap;
-extern d_ioctl_t     drm_addbufs;
-extern d_ioctl_t     drm_infobufs;
-extern d_ioctl_t     drm_markbufs;
-extern d_ioctl_t     drm_freebufs;
-extern d_ioctl_t     drm_mapbufs;
-
-
-				/* Buffer list management support (lists.c) */
-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);
-
-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);
-
-				/* DMA support (gen_dma.c) */
-extern void	     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);
-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);
-extern void	     drm_wakeup(drm_device_t *dev, drm_buf_t *buf);
-extern void	     drm_clear_next_buffer(drm_device_t *dev);
-extern int	     drm_select_queue(drm_device_t *dev,
-				      void (*wrapper)(void *));
-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);
 #if DRM_DMA_HISTOGRAM
-extern int	     drm_histogram_slot(struct timespec *ts);
-extern void	     drm_histogram_compute(drm_device_t *dev, drm_buf_t *buf);
+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 void           DRM(agp_do_release)(void);
+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
 
-				/* Misc. IOCTL support (ioctl.c) */
-extern d_ioctl_t     drm_irq_busid;
-extern d_ioctl_t     drm_getunique;
-extern d_ioctl_t     drm_setunique;
-
-
-				/* Context IOCTL support (context.c) */
-extern d_ioctl_t     drm_resctx;
-extern d_ioctl_t     drm_addctx;
-extern d_ioctl_t     drm_modctx;
-extern d_ioctl_t     drm_getctx;
-extern d_ioctl_t     drm_switchctx;
-extern d_ioctl_t     drm_newctx;
-extern d_ioctl_t     drm_rmctx;
-
-
-				/* Drawable IOCTL support (drawable.c) */
-extern d_ioctl_t     drm_adddraw;
-extern d_ioctl_t     drm_rmdraw;
-
-
-				/* Authentication IOCTL support (auth.c) */
-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 d_ioctl_t     drm_getmagic;
-extern d_ioctl_t     drm_authmagic;
-
-
-				/* Locking IOCTL support (lock.c) */
-extern d_ioctl_t     drm_block;
-extern d_ioctl_t     drm_unblock;
-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 d_ioctl_t     drm_finish;
-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);
-
-				/* Context Bitmap support (ctxbitmap.c) */
-extern int	     drm_ctxbitmap_init(drm_device_t *dev);
-extern void	     drm_ctxbitmap_cleanup(drm_device_t *dev);
-extern int	     drm_ctxbitmap_next(drm_device_t *dev);
-extern void	     drm_ctxbitmap_free(drm_device_t *dev, int ctx_handle);
-
-#ifdef DRM_AGP
-				/* AGP/GART support (agpsupport.c) */
-extern drm_agp_head_t *drm_agp_init(void);
-extern d_ioctl_t     drm_agp_acquire;
-extern d_ioctl_t     drm_agp_release;
-extern d_ioctl_t     drm_agp_enable;
-extern d_ioctl_t     drm_agp_info;
-extern d_ioctl_t     drm_agp_alloc;
-extern d_ioctl_t     drm_agp_free;
-extern d_ioctl_t     drm_agp_unbind;
-extern d_ioctl_t     drm_agp_bind;
+				/* 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);
 #endif
+
+#if __REALLY_HAVE_SG
+                               /* 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
+
+#endif /* __KERNEL__ */
 #endif