Merged bsd-1-0-0bsd-1-0-0-20000531-merge

33 files changed, 8972 insertions, 0 deletions

diff --git a/bsd/Imakefile b/bsd/Imakefile
new file mode 100644
index 00000000..cf042d21
--- /dev/null
+++ b/bsd/Imakefile
@@ -0,0 +1,31 @@
+XCOMM $XFree86$
+XCOMM $PI$
+
+#include <Server.tmpl>
+
+LinkSourceFile(xf86drm.c,..)
+LinkSourceFile(xf86drmHash.c,..)
+LinkSourceFile(xf86drmRandom.c,..)
+LinkSourceFile(xf86drmSL.c,..)
+LinkSourceFile(xf86drm.h,$(XF86OSSRC))
+LinkSourceFile(xf86_OSproc.h,$(XF86OSSRC))
+LinkSourceFile(sigio.c,$(XF86OSSRC)/shared)
+
+XCOMM This is a kludge until we determine how best to build the
+XCOMM kernel-specific device driver.  This allows us to continue
+XCOMM to maintain the single Makefile.bsd with kernel-specific
+XCOMM support.  Later, we can move to a different Imakefile.
+
+#if BuildXF86DRI && BuildXF86DRM
+all::
+	$(MAKE) -f Makefile.bsd
+
+install::
+	$(MAKE) -f Makefile.bsd install
+#else
+all::
+	echo 'Use "make -f Makefile.bsd" to manually build drm.o'
+#endif
+
+clean::
+	$(MAKE) -f Makefile.bsd clean
diff --git a/bsd/Makefile b/bsd/Makefile
new file mode 100644
index 00000000..ff26c762
--- /dev/null
+++ b/bsd/Makefile
@@ -0,0 +1,5 @@
+# $FreeBSD$
+
+SUBDIR = drm tdfx gamma
+
+.include <bsd.subdir.mk>
diff --git a/bsd/Makefile.bsd b/bsd/Makefile.bsd
new file mode 100644
index 00000000..ff26c762
--- /dev/null
+++ b/bsd/Makefile.bsd
@@ -0,0 +1,5 @@
+# $FreeBSD$
+
+SUBDIR = drm tdfx gamma
+
+.include <bsd.subdir.mk>
diff --git a/bsd/drm.h b/bsd/drm.h
new file mode 100644
index 00000000..9e0ade35
--- /dev/null
+++ b/bsd/drm.h
@@ -0,0 +1,359 @@
+/* drm.h -- Header for Direct Rendering Manager -*- c -*-
+ * Created: Mon Jan  4 10:05:05 1999 by faith@precisioninsight.com
+ * Revised: Fri Aug 20 13:08:18 1999 by faith@precisioninsight.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * 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
+ * PRECISION INSIGHT 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/drm.h,v 1.46 1999/08/20 20:00:53 faith Exp $
+ * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/drm.h,v 1.1 1999/09/25 14:37:58 dawes Exp $
+ * 
+ */
+
+#ifndef _DRM_H_
+#define _DRM_H_
+
+#include <sys/ioccom.h>		/* For _IO* macros */
+
+#define DRM_DEV_DRM	 "/dev/drm"
+#define DRM_DEV_MODE	 (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP)
+#define DRM_DEV_UID	 0
+#define DRM_DEV_GID	 0
+
+
+#define DRM_NAME	"drm"	  /* Name in kernel, /dev		    */
+#define DRM_MIN_ORDER	5	  /* At least 2^5 bytes = 32 bytes	    */
+#define DRM_MAX_ORDER	22	  /* Up to 2^22 bytes = 4MB		    */
+#define DRM_RAM_PERCENT 10	  /* How much system ram can we lock?	    */
+
+#define _DRM_LOCK_HELD	0x80000000 /* Hardware lock is held		    */
+#define _DRM_LOCK_CONT	0x40000000 /* Hardware lock is contended	    */
+#define _DRM_LOCK_IS_HELD(lock)	   ((lock) & _DRM_LOCK_HELD)
+#define _DRM_LOCK_IS_CONT(lock)	   ((lock) & _DRM_LOCK_CONT)
+#define _DRM_LOCKING_CONTEXT(lock) ((lock) & ~(_DRM_LOCK_HELD|_DRM_LOCK_CONT))
+
+typedef unsigned long drm_handle_t;
+typedef unsigned int  drm_context_t;
+typedef unsigned int  drm_drawable_t;
+typedef unsigned int  drm_magic_t;
+
+/* Warning: If you change this structure, make sure you change 
+ * XF86DRIClipRectRec in the server as well */
+
+typedef struct drm_clip_rect {
+           unsigned short x1;
+           unsigned short y1;
+           unsigned short x2;
+           unsigned short y2;
+} drm_clip_rect_t;
+
+/* Seperate include files for the i810/mga specific structures */
+#include "mga_drm.h"
+#include "i810_drm.h"
+#include "r128_drm.h"
+
+typedef struct drm_version {
+	int    version_major;	  /* Major version			    */
+	int    version_minor;	  /* Minor version			    */
+	int    version_patchlevel;/* Patch level			    */
+	size_t name_len;	  /* Length of name buffer		    */
+	char   *name;		  /* Name of driver			    */
+	size_t date_len;	  /* Length of date buffer		    */
+	char   *date;		  /* User-space buffer to hold date	    */
+	size_t desc_len;	  /* Length of desc buffer		    */
+	char   *desc;		  /* User-space buffer to hold desc	    */
+} drm_version_t;
+
+typedef struct drm_unique {
+	size_t unique_len;	  /* Length of unique			    */
+	char   *unique;		  /* Unique name for driver instantiation   */
+} drm_unique_t;
+
+typedef struct drm_list {
+	int		 count;	  /* Length of user-space structures	    */
+	drm_version_t	 *version;
+} drm_list_t;
+
+typedef struct drm_block {
+	int		 unused;
+} drm_block_t;
+
+typedef struct drm_control {
+	enum {
+		DRM_ADD_COMMAND,
+		DRM_RM_COMMAND,
+		DRM_INST_HANDLER,
+		DRM_UNINST_HANDLER
+	}		 func;
+	int		 irq;
+} drm_control_t;
+
+typedef enum drm_map_type {
+	_DRM_FRAME_BUFFER = 0,	  /* WC (no caching), no core dump	    */
+	_DRM_REGISTERS	  = 1,	  /* no caching, no core dump		    */
+	_DRM_SHM	  = 2,	  /* shared, cached			    */
+	_DRM_AGP	  = 3	  /* AGP/GART				    */
+} drm_map_type_t;
+
+typedef enum drm_map_flags {
+	_DRM_RESTRICTED	     = 0x01, /* Cannot be mapped to user-virtual    */
+	_DRM_READ_ONLY	     = 0x02,
+	_DRM_LOCKED	     = 0x04, /* shared, cached, locked		    */
+	_DRM_KERNEL	     = 0x08, /* kernel requires access		    */
+	_DRM_WRITE_COMBINING = 0x10, /* use write-combining if available    */
+	_DRM_CONTAINS_LOCK   = 0x20  /* SHM page that contains lock	    */
+} drm_map_flags_t;
+
+typedef struct drm_map {
+	unsigned long	offset;	 /* Requested physical address (0 for SAREA)*/
+	unsigned long	size;	 /* Requested physical size (bytes)	    */
+	drm_map_type_t	type;	 /* Type of memory to map		    */
+	drm_map_flags_t flags;	 /* Flags				    */
+	void		*handle; /* User-space: "Handle" to pass to mmap    */
+				 /* Kernel-space: kernel-virtual address    */
+	int		mtrr;	 /* MTRR slot used			    */
+				 /* Private data			    */
+} drm_map_t;
+
+typedef enum drm_lock_flags {
+	_DRM_LOCK_READY	     = 0x01, /* Wait until hardware is ready for DMA */
+	_DRM_LOCK_QUIESCENT  = 0x02, /* Wait until hardware quiescent	     */
+	_DRM_LOCK_FLUSH	     = 0x04, /* Flush this context's DMA queue first */
+	_DRM_LOCK_FLUSH_ALL  = 0x08, /* Flush all DMA queues first	     */
+				/* These *HALT* flags aren't supported yet
+				   -- they will be used to support the
+				   full-screen DGA-like mode. */
+	_DRM_HALT_ALL_QUEUES = 0x10, /* Halt all current and future queues   */
+	_DRM_HALT_CUR_QUEUES = 0x20  /* Halt all current queues		     */
+} drm_lock_flags_t;
+
+typedef struct drm_lock {
+	int		 context;
+	drm_lock_flags_t flags;
+} drm_lock_t;
+
+typedef enum drm_dma_flags {	      /* These values *MUST* match xf86drm.h */
+				      /* Flags for DMA buffer dispatch	     */
+	_DRM_DMA_BLOCK	      = 0x01, /* Block until buffer dispatched.
+					 Note, the buffer may not yet have
+					 been processed by the hardware --
+					 getting a hardware lock with the
+					 hardware quiescent will ensure
+					 that the buffer has been
+					 processed.			     */
+	_DRM_DMA_WHILE_LOCKED = 0x02, /* Dispatch while lock held	     */
+	_DRM_DMA_PRIORITY     = 0x04, /* High priority dispatch		     */
+
+				      /* Flags for DMA buffer request	     */
+	_DRM_DMA_WAIT	      = 0x10, /* Wait for free buffers		     */
+	_DRM_DMA_SMALLER_OK   = 0x20, /* Smaller-than-requested buffers ok   */
+	_DRM_DMA_LARGER_OK    = 0x40  /* Larger-than-requested buffers ok    */
+} drm_dma_flags_t;
+
+typedef struct drm_buf_desc {
+	int	      count;	 /* Number of buffers of this size	     */
+	int	      size;	 /* Size in bytes			     */
+	int	      low_mark;	 /* Low water mark			     */
+	int	      high_mark; /* High water mark			     */
+	enum {
+		_DRM_PAGE_ALIGN = 0x01, /* Align on page boundaries for DMA  */
+		_DRM_AGP_BUFFER = 0x02  /* Buffer is in agp space            */
+	}	      flags;
+	unsigned long agp_start; /* Start address of where the agp buffers
+				  * are in the agp aperture */
+} drm_buf_desc_t;
+
+typedef struct drm_buf_info {
+	int	       count;	/* Entries in list			     */
+	drm_buf_desc_t *list;
+} drm_buf_info_t;
+
+typedef struct drm_buf_free {
+	int	       count;
+	int	       *list;
+} drm_buf_free_t;
+
+typedef struct drm_buf_pub {
+	int		  idx;	       /* Index into master buflist	     */
+	int		  total;       /* Buffer size			     */
+	int		  used;	       /* Amount of buffer in use (for DMA)  */
+	void		  *address;    /* Address of buffer		     */
+} drm_buf_pub_t;
+
+typedef struct drm_buf_map {
+	int	      count;	/* Length of buflist			    */
+	void	      *virtual;	/* Mmaped area in user-virtual		    */
+	drm_buf_pub_t *list;	/* Buffer information			    */
+} drm_buf_map_t;
+
+typedef struct drm_dma {
+				/* Indices here refer to the offset into
+				   buflist in drm_buf_get_t.  */
+	int		context;	  /* Context handle		    */
+	int		send_count;	  /* Number of buffers to send	    */
+	int		*send_indices;	  /* List of handles to buffers	    */
+	int		*send_sizes;	  /* Lengths of data to send	    */
+	drm_dma_flags_t flags;		  /* Flags			    */
+	int		request_count;	  /* Number of buffers requested    */
+	int		request_size;	  /* Desired size for buffers	    */
+	int		*request_indices; /* Buffer information		    */
+	int		*request_sizes;
+	int		granted_count;	  /* Number of buffers granted	    */
+} drm_dma_t;
+
+typedef enum {
+	_DRM_CONTEXT_PRESERVED = 0x01,
+	_DRM_CONTEXT_2DONLY    = 0x02
+} drm_ctx_flags_t;
+
+typedef struct drm_ctx {
+	drm_context_t	handle;
+	drm_ctx_flags_t flags;
+} drm_ctx_t;
+
+typedef struct drm_ctx_res {
+	int		count;
+	drm_ctx_t	*contexts;
+} drm_ctx_res_t;
+
+typedef struct drm_draw {
+	drm_drawable_t	handle;
+} drm_draw_t;
+
+typedef struct drm_auth {
+	drm_magic_t	magic;
+} drm_auth_t;
+
+typedef struct drm_irq_busid {
+	int irq;
+	int busnum;
+	int devnum;
+	int funcnum;
+} drm_irq_busid_t;
+
+typedef struct drm_agp_mode {
+	unsigned long mode;
+} drm_agp_mode_t;
+
+				/* For drm_agp_alloc -- allocated a buffer */
+typedef struct drm_agp_buffer {
+	unsigned long size;	/* In bytes -- will round to page boundary */
+	unsigned long handle;	/* Used for BIND/UNBIND ioctls */
+	unsigned long type;     /* Type of memory to allocate  */
+        unsigned long physical; /* Physical used by i810       */
+} drm_agp_buffer_t;
+
+				/* For drm_agp_bind */
+typedef struct drm_agp_binding {
+	unsigned long handle;   /* From drm_agp_buffer */
+	unsigned long offset;	/* In bytes -- will round to page boundary */
+} drm_agp_binding_t;
+
+typedef struct drm_agp_info {
+	int            agp_version_major;
+	int            agp_version_minor;
+	unsigned long  mode;
+	unsigned long  aperture_base;  /* physical address */
+	unsigned long  aperture_size;  /* bytes */
+	unsigned long  memory_allowed; /* bytes */
+	unsigned long  memory_used;
+
+				/* PCI information */
+	unsigned short id_vendor;
+	unsigned short id_device;
+} drm_agp_info_t;
+
+#define DRM_IOCTL_BASE	     'd'
+#define DRM_IOCTL_NR(n)	     ((n) & 0xff)
+#define DRM_IO(nr)	     _IO(DRM_IOCTL_BASE,nr)
+#define DRM_IOR(nr,size)     _IOR(DRM_IOCTL_BASE,nr,size)
+#define DRM_IOW(nr,size)     _IOW(DRM_IOCTL_BASE,nr,size)
+#define DRM_IOWR(nr,size)    _IOWR(DRM_IOCTL_BASE,nr,size)
+
+
+#define DRM_IOCTL_VERSION    DRM_IOWR(0x00, drm_version_t)
+#define DRM_IOCTL_GET_UNIQUE DRM_IOWR(0x01, drm_unique_t)
+#define DRM_IOCTL_GET_MAGIC  DRM_IOR( 0x02, drm_auth_t)
+#define DRM_IOCTL_IRQ_BUSID  DRM_IOWR(0x03, drm_irq_busid_t)
+
+#define DRM_IOCTL_SET_UNIQUE DRM_IOW( 0x10, drm_unique_t)
+#define DRM_IOCTL_AUTH_MAGIC DRM_IOW( 0x11, drm_auth_t)
+#define DRM_IOCTL_BLOCK	     DRM_IOWR(0x12, drm_block_t)
+#define DRM_IOCTL_UNBLOCK    DRM_IOWR(0x13, drm_block_t)
+#define DRM_IOCTL_CONTROL    DRM_IOW( 0x14, drm_control_t)
+#define DRM_IOCTL_ADD_MAP    DRM_IOWR(0x15, drm_map_t)
+#define DRM_IOCTL_ADD_BUFS   DRM_IOWR(0x16, drm_buf_desc_t)
+#define DRM_IOCTL_MARK_BUFS  DRM_IOW( 0x17, drm_buf_desc_t)
+#define DRM_IOCTL_INFO_BUFS  DRM_IOWR(0x18, drm_buf_info_t)
+#define DRM_IOCTL_MAP_BUFS   DRM_IOWR(0x19, drm_buf_map_t)
+#define DRM_IOCTL_FREE_BUFS  DRM_IOW( 0x1a, drm_buf_free_t)
+
+#define DRM_IOCTL_ADD_CTX    DRM_IOWR(0x20, drm_ctx_t)
+#define DRM_IOCTL_RM_CTX     DRM_IOWR(0x21, drm_ctx_t)
+#define DRM_IOCTL_MOD_CTX    DRM_IOW( 0x22, drm_ctx_t)
+#define DRM_IOCTL_GET_CTX    DRM_IOWR(0x23, drm_ctx_t)
+#define DRM_IOCTL_SWITCH_CTX DRM_IOW( 0x24, drm_ctx_t)
+#define DRM_IOCTL_NEW_CTX    DRM_IOW( 0x25, drm_ctx_t)
+#define DRM_IOCTL_RES_CTX    DRM_IOWR(0x26, drm_ctx_res_t)
+#define DRM_IOCTL_ADD_DRAW   DRM_IOWR(0x27, drm_draw_t)
+#define DRM_IOCTL_RM_DRAW    DRM_IOWR(0x28, drm_draw_t)
+#define DRM_IOCTL_DMA	     DRM_IOWR(0x29, drm_dma_t)
+#define DRM_IOCTL_LOCK	     DRM_IOW( 0x2a, drm_lock_t)
+#define DRM_IOCTL_UNLOCK     DRM_IOW( 0x2b, drm_lock_t)
+#define DRM_IOCTL_FINISH     DRM_IOW( 0x2c, drm_lock_t)
+
+#define DRM_IOCTL_AGP_ACQUIRE DRM_IO(  0x30)
+#define DRM_IOCTL_AGP_RELEASE DRM_IO(  0x31)
+#define DRM_IOCTL_AGP_ENABLE  DRM_IOW( 0x32, drm_agp_mode_t)
+#define DRM_IOCTL_AGP_INFO    DRM_IOR( 0x33, drm_agp_info_t)
+#define DRM_IOCTL_AGP_ALLOC   DRM_IOWR(0x34, drm_agp_buffer_t)
+#define DRM_IOCTL_AGP_FREE    DRM_IOW( 0x35, drm_agp_buffer_t)
+#define DRM_IOCTL_AGP_BIND    DRM_IOW( 0x36, drm_agp_binding_t)
+#define DRM_IOCTL_AGP_UNBIND  DRM_IOW( 0x37, drm_agp_binding_t)
+
+/* Mga specific ioctls */
+#define DRM_IOCTL_MGA_INIT    DRM_IOW( 0x40, drm_mga_init_t)
+#define DRM_IOCTL_MGA_SWAP    DRM_IOW( 0x41, drm_mga_swap_t)
+#define DRM_IOCTL_MGA_CLEAR   DRM_IOW( 0x42, drm_mga_clear_t)
+#define DRM_IOCTL_MGA_ILOAD   DRM_IOW( 0x43, drm_mga_iload_t)
+#define DRM_IOCTL_MGA_VERTEX  DRM_IOW( 0x44, drm_mga_vertex_t)
+#define DRM_IOCTL_MGA_FLUSH   DRM_IOW( 0x45, drm_lock_t )
+#define DRM_IOCTL_MGA_INDICES DRM_IOW( 0x46, drm_mga_indices_t)
+
+/* I810 specific ioctls */
+#define DRM_IOCTL_I810_INIT    DRM_IOW( 0x40, drm_i810_init_t)
+#define DRM_IOCTL_I810_VERTEX  DRM_IOW( 0x41, drm_i810_vertex_t)
+#define DRM_IOCTL_I810_CLEAR   DRM_IOW( 0x42, drm_i810_clear_t)
+#define DRM_IOCTL_I810_FLUSH   DRM_IO ( 0x43)
+#define DRM_IOCTL_I810_GETAGE  DRM_IO ( 0x44)
+#define DRM_IOCTL_I810_GETBUF  DRM_IOWR(0x45, drm_i810_dma_t)
+#define DRM_IOCTL_I810_SWAP    DRM_IO ( 0x46)
+
+/* Rage 128 specific ioctls */
+#define DRM_IOCTL_R128_INIT	DRM_IOW( 0x40, drm_r128_init_t)
+#define DRM_IOCTL_R128_RESET	DRM_IO(  0x41)
+#define DRM_IOCTL_R128_FLUSH	DRM_IO(  0x42)
+#define DRM_IOCTL_R128_CCEIDL	DRM_IO(  0x43)
+#define DRM_IOCTL_R128_PACKET	DRM_IOW( 0x44, drm_r128_packet_t)
+#define DRM_IOCTL_R128_VERTEX	DRM_IOW( 0x45, drm_r128_vertex_t)
+
+#endif
diff --git a/bsd/drm/Makefile b/bsd/drm/Makefile
new file mode 100644
index 00000000..6a70a5b0
--- /dev/null
+++ b/bsd/drm/Makefile
@@ -0,0 +1,17 @@
+# $FreeBSD$
+
+KMOD	= drm
+SRCS	= init.c memory.c auth.c context.c drawable.c bufs.c \
+	  lists.c lock.c ioctl.c fops.c vm.c dma.c sysctl.c  \
+	  agpsupport.c
+SRCS   += device_if.h bus_if.h pci_if.h
+CFLAGS += ${DEBUG_FLAGS} -I.. # -DDRM_AGP
+KERN    = /usr/src/sys
+
+@:
+	ln -sf /sys @
+
+machine:
+	ln -sf /sys/i386/include machine
+
+.include "/usr/src/sys/conf/kmod.mk"
diff --git a/bsd/drm/agpsupport.c b/bsd/drm/agpsupport.c
new file mode 100644
index 00000000..53444c90
--- /dev/null
+++ b/bsd/drm/agpsupport.c
@@ -0,0 +1,271 @@
+/* agpsupport.c -- DRM support for AGP/GART backend
+ * Created: Mon Dec 13 09:56:45 1999 by faith@precisioninsight.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * 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
+ * PRECISION INSIGHT 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.
+ * 
+ * Author: Rickard E. (Rik) Faith <faith@precisioninsight.com>
+ *
+ * $XFree86$
+ *
+ */
+
+#define __NO_VERSION__
+#include "drmP.h"
+
+#ifdef DRM_AGP
+
+#include <pci/agpvar.h>
+
+MODULE_DEPEND(drm, agp, 1, 1, 1);
+
+int
+drm_agp_info(dev_t kdev, u_long cmd, caddr_t data,
+	     int flags, struct proc *p)
+{
+	drm_device_t	*dev	= kdev->si_drv1;
+	struct agp_info *kern;
+	drm_agp_info_t   info;
+
+	if (!dev->agp->acquired) return EINVAL;
+
+	kern                   = &dev->agp->info;
+	agp_get_info(dev->agp->agpdev, kern);
+	info.agp_version_major = 1;
+	info.agp_version_minor = 0;
+	info.mode              = kern->ai_mode;
+	info.aperture_base     = kern->ai_aperture_base;
+	info.aperture_size     = kern->ai_aperture_size;
+	info.memory_allowed    = kern->ai_memory_allowed;
+	info.memory_used       = kern->ai_memory_used;
+	info.id_vendor         = kern->ai_devid & 0xffff;
+	info.id_device         = kern->ai_devid >> 16;
+
+	*(drm_agp_info_t *) data = info;
+	return 0;
+}
+
+int
+drm_agp_acquire(dev_t kdev, u_long cmd, caddr_t data,
+		int flags, struct proc *p)
+{
+	drm_device_t *dev = kdev->si_drv1;
+	int          retcode;
+
+	if (dev->agp->acquired) return EINVAL;
+	retcode = agp_acquire(dev->agp->agpdev);
+	if (retcode) return retcode;
+	dev->agp->acquired = 1;
+	return 0;
+}
+
+int
+drm_agp_release(dev_t kdev, u_long cmd, caddr_t data,
+		int flags, struct proc *p)
+{
+	drm_device_t *dev = kdev->si_drv1;
+
+	if (!dev->agp->acquired) return EINVAL;
+	agp_release(dev->agp->agpdev);
+	dev->agp->acquired = 0;
+	return 0;
+	
+}
+
+int
+drm_agp_enable(dev_t kdev, u_long cmd, caddr_t data,
+	       int flags, struct proc *p)
+{
+	drm_device_t   *dev = kdev->si_drv1;
+	drm_agp_mode_t mode;
+
+	if (!dev->agp->acquired) return EINVAL;
+
+	mode = *(drm_agp_mode_t *) data;
+	
+	dev->agp->mode    = mode.mode;
+	agp_enable(dev->agp->agpdev, mode.mode);
+	dev->agp->base    = dev->agp->info.ai_aperture_base;
+	dev->agp->enabled = 1;
+	return 0;
+}
+
+int drm_agp_alloc(dev_t kdev, u_long cmd, caddr_t data,
+		  int flags, struct proc *p)
+{
+	drm_device_t     *dev = kdev->si_drv1;
+	drm_agp_buffer_t request;
+	drm_agp_mem_t    *entry;
+	void	         *handle;
+	unsigned long    pages;
+	u_int32_t	 type;
+	struct agp_memory_info info;
+
+	if (!dev->agp->acquired) return EINVAL;
+
+	request = *(drm_agp_buffer_t *) data;
+
+	if (!(entry = drm_alloc(sizeof(*entry), DRM_MEM_AGPLISTS)))
+		return ENOMEM;
+   
+   	memset(entry, 0, sizeof(*entry));
+
+	pages = (request.size + PAGE_SIZE - 1) / PAGE_SIZE;
+	type = (u_int32_t) request.type;
+
+	if (!(handle = drm_alloc_agp(pages, type))) {
+		drm_free(entry, sizeof(*entry), DRM_MEM_AGPLISTS);
+		return ENOMEM;
+	}
+	
+	entry->handle    = handle;
+	entry->bound     = 0;
+	entry->pages     = pages;
+	entry->prev      = NULL;
+	entry->next      = dev->agp->memory;
+	if (dev->agp->memory) dev->agp->memory->prev = entry;
+	dev->agp->memory = entry;
+
+	agp_memory_info(dev->agp->agpdev, entry->handle, &info);
+
+	request.handle   = (unsigned long) entry->handle;
+        request.physical = info.ami_physical;
+
+	*(drm_agp_buffer_t *) data = request;
+
+	return 0;
+}
+
+static drm_agp_mem_t *
+drm_agp_lookup_entry(drm_device_t *dev, void *handle)
+{
+	drm_agp_mem_t *entry;
+
+	for (entry = dev->agp->memory; entry; entry = entry->next) {
+		if (entry->handle == handle) return entry;
+	}
+	return NULL;
+}
+
+int
+drm_agp_unbind(dev_t kdev, u_long cmd, caddr_t data,
+	       int flags, struct proc *p)
+{
+	drm_device_t      *dev = kdev->si_drv1;
+	drm_agp_binding_t request;
+	drm_agp_mem_t     *entry;
+
+	if (!dev->agp->acquired) return EINVAL;
+	request = *(drm_agp_binding_t *) data;
+	if (!(entry = drm_agp_lookup_entry(dev, (void *) request.handle)))
+		return EINVAL;
+	if (!entry->bound) return EINVAL;
+	return drm_unbind_agp(entry->handle);
+}
+
+int drm_agp_bind(dev_t kdev, u_long cmd, caddr_t data,
+		 int flags, struct proc *p)
+{
+	drm_device_t      *dev = kdev->si_drv1;
+	drm_agp_binding_t request;
+	drm_agp_mem_t     *entry;
+	int               retcode;
+	int               page;
+	
+	if (!dev->agp->acquired) return EINVAL;
+	request = *(drm_agp_binding_t *) data;
+	if (!(entry = drm_agp_lookup_entry(dev, (void *) request.handle)))
+		return EINVAL;
+	if (entry->bound) return EINVAL;
+	page = (request.offset + PAGE_SIZE - 1) / PAGE_SIZE;
+	if ((retcode = drm_bind_agp(entry->handle, page))) return retcode;
+	entry->bound = dev->agp->base + (page << PAGE_SHIFT);
+	return 0;
+}
+
+int drm_agp_free(dev_t kdev, u_long cmd, caddr_t data,
+		 int flags, struct proc *p)
+{
+	drm_device_t     *dev = kdev->si_drv1;
+	drm_agp_buffer_t request;
+	drm_agp_mem_t    *entry;
+	
+	if (!dev->agp->acquired) return EINVAL;
+	request = *(drm_agp_buffer_t *) data;
+	if (!(entry = drm_agp_lookup_entry(dev, (void*) request.handle)))
+		return EINVAL;
+	if (entry->bound) drm_unbind_agp(entry->handle);
+   
+	if (entry->prev) entry->prev->next = entry->next;
+	else             dev->agp->memory  = entry->next;
+	if (entry->next) entry->next->prev = entry->prev;
+	drm_free_agp(entry->handle, entry->pages);
+	drm_free(entry, sizeof(*entry), DRM_MEM_AGPLISTS);
+	return 0;
+}
+
+drm_agp_head_t *drm_agp_init(void)
+{
+	device_t agpdev;
+	drm_agp_head_t *head   = NULL;
+	int      agp_available = 1;
+   
+	agpdev = agp_find_device();
+	if (!agpdev)
+		agp_available = 0;
+
+	DRM_DEBUG("agp_available = %d\n", agp_available);
+
+	if (agp_available) {
+		if (!(head = drm_alloc(sizeof(*head), DRM_MEM_AGPLISTS)))
+			return NULL;
+		head->agpdev = agpdev;
+		memset((void *)head, 0, sizeof(*head));
+		agp_get_info(agpdev, &head->info);
+		head->memory = NULL;
+#if 0				/* bogus */
+		switch (head->agp_info.chipset) {
+		case INTEL_GENERIC:  head->chipset = "Intel";          break;
+		case INTEL_LX:       head->chipset = "Intel 440LX";    break;
+		case INTEL_BX:       head->chipset = "Intel 440BX";    break;
+		case INTEL_GX:       head->chipset = "Intel 440GX";    break;
+		case INTEL_I810:     head->chipset = "Intel i810";     break;
+		case VIA_GENERIC:    head->chipset = "VIA";            break;
+		case VIA_VP3:        head->chipset = "VIA VP3";        break;
+		case VIA_MVP3:       head->chipset = "VIA MVP3";       break;
+		case VIA_APOLLO_PRO: head->chipset = "VIA Apollo Pro"; break;
+		case SIS_GENERIC:    head->chipset = "SiS";            break;
+		case AMD_GENERIC:    head->chipset = "AMD";            break;
+		case AMD_IRONGATE:   head->chipset = "AMD Irongate";   break;
+		case ALI_GENERIC:    head->chipset = "ALi";            break;
+		case ALI_M1541:      head->chipset = "ALi M1541";      break;
+		default:
+		}
+#endif
+		DRM_INFO("AGP at 0x%08x %dMB\n",
+			 head->info.ai_aperture_base,
+			 head->info.ai_aperture_size >> 20);
+	}
+	return head;
+}
+
+#endif /* DRM_AGP */
diff --git a/bsd/drm/auth.c b/bsd/drm/auth.c
new file mode 100644
index 00000000..f7b3bc49
--- /dev/null
+++ b/bsd/drm/auth.c
@@ -0,0 +1,168 @@
+/* auth.c -- IOCTLs for authentication -*- c -*-
+ * Created: Tue Feb  2 08:37:54 1999 by faith@precisioninsight.com
+ * Revised: Fri Aug 20 11:31:48 1999 by faith@precisioninsight.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * 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
+ * PRECISION INSIGHT 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/auth.c,v 1.4 1999/08/30 13:05:00 faith Exp $
+ * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/auth.c,v 1.1 1999/09/25 14:37:57 dawes Exp $
+ *
+ */
+
+#define __NO_VERSION__
+#include "drmP.h"
+
+static int drm_hash_magic(drm_magic_t magic)
+{
+	return magic & (DRM_HASH_SIZE-1);
+}
+
+static drm_file_t *drm_find_file(drm_device_t *dev, drm_magic_t magic)
+{
+	drm_file_t	  *retval = NULL;
+	drm_magic_entry_t *pt;
+	int		  hash	  = drm_hash_magic(magic);
+
+	lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, curproc);
+	for (pt = dev->magiclist[hash].head; pt; pt = pt->next) {
+		if (pt->priv->authenticated) continue;
+		if (pt->magic == magic) {
+			retval = pt->priv;
+			break;
+		}
+	}
+	lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc);
+
+	return retval;
+}
+
+int drm_add_magic(drm_device_t *dev, drm_file_t *priv, drm_magic_t magic)
+{
+	int		  hash;
+	drm_magic_entry_t *entry;
+	
+	DRM_DEBUG("%d\n", magic);
+	
+	hash	     = drm_hash_magic(magic);
+	entry	     = drm_alloc(sizeof(*entry), DRM_MEM_MAGIC);
+	if (!entry) return ENOMEM;
+	entry->magic = magic;
+	entry->priv  = priv;
+	entry->next  = NULL;
+
+	lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, curproc);
+	if (dev->magiclist[hash].tail) {
+		dev->magiclist[hash].tail->next = entry;
+		dev->magiclist[hash].tail	= entry;
+	} else {
+		dev->magiclist[hash].head	= entry;
+		dev->magiclist[hash].tail	= entry;
+	}
+	lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc);
+	
+	return 0;
+}
+
+int drm_remove_magic(drm_device_t *dev, drm_magic_t magic)
+{
+	drm_magic_entry_t *prev = NULL;
+	drm_magic_entry_t *pt;
+	int		  hash;
+	
+	DRM_DEBUG("%d\n", magic);
+	hash = drm_hash_magic(magic);
+	
+	lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, curproc);
+	for (pt = dev->magiclist[hash].head; pt; prev = pt, pt = pt->next) {
+		if (pt->magic == magic) {
+			if (dev->magiclist[hash].head == pt) {
+				dev->magiclist[hash].head = pt->next;
+			}
+			if (dev->magiclist[hash].tail == pt) {
+				dev->magiclist[hash].tail = prev;
+			}
+			if (prev) {
+				prev->next = pt->next;
+			}
+			lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc);
+			return 0;
+		}
+	}
+	lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc);
+
+	drm_free(pt, sizeof(*pt), DRM_MEM_MAGIC);
+	
+	return EINVAL;
+}
+
+int drm_getmagic(dev_t kdev, u_long cmd, caddr_t data,
+		 int flags, struct proc *p)
+{
+	static drm_magic_t sequence = 0;
+#if 0
+	static struct simplelock lock; /* XXX */
+#endif
+	drm_device_t	   *dev = kdev->si_drv1;
+	drm_file_t	   *priv;
+	drm_auth_t	   auth;
+
+				/* Find unique magic */
+	priv = drm_find_file_by_proc(dev, p);
+	if (!priv) {
+	    DRM_DEBUG("can't find file structure\n");
+	    return EINVAL;
+	}
+	if (priv->magic) {
+		auth.magic = priv->magic;
+	} else {
+		simple_lock(&lock);
+		do {
+			if (!sequence) ++sequence; /* reserve 0 */
+			auth.magic = sequence++;
+		} while (drm_find_file(dev, auth.magic));
+		simple_unlock(&lock);
+		priv->magic = auth.magic;
+		drm_add_magic(dev, priv, auth.magic);
+	}
+	
+	DRM_DEBUG("%u\n", auth.magic);
+	*(drm_auth_t *) data = auth;
+	return 0;
+}
+
+int drm_authmagic(dev_t kdev, u_long cmd, caddr_t data,
+		  int flags, struct proc *p)
+{
+	drm_device_t	   *dev	    = kdev->si_drv1;
+	drm_auth_t	   auth;
+	drm_file_t	   *file;
+
+	auth = *(drm_auth_t *) data;
+	DRM_DEBUG("%u\n", auth.magic);
+	if ((file = drm_find_file(dev, auth.magic))) {
+		file->authenticated = 1;
+		drm_remove_magic(dev, auth.magic);
+		return 0;
+	}
+	return EINVAL;
+}
diff --git a/bsd/drm/bufs.c b/bsd/drm/bufs.c
new file mode 100644
index 00000000..fc08b69d
--- /dev/null
+++ b/bsd/drm/bufs.c
@@ -0,0 +1,500 @@
+/* bufs.c -- IOCTLs to manage buffers -*- c -*-
+ * Created: Tue Feb  2 08:37:54 1999 by faith@precisioninsight.com
+ * Revised: Fri Aug 20 22:48:10 1999 by faith@precisioninsight.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * 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
+ * PRECISION INSIGHT 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/bufs.c,v 1.8 1999/08/30 13:05:00 faith Exp $
+ * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/bufs.c,v 1.1 1999/09/25 14:37:57 dawes Exp $
+ *
+ */
+
+#define __NO_VERSION__
+#include "drmP.h"
+#include <sys/mman.h>
+#include <vm/vm.h>
+#include <vm/pmap.h>
+#include <vm/vm_extern.h>
+#include <vm/vm_map.h>
+
+				/* Compute order.  Can be made faster. */
+int drm_order(unsigned long size)
+{
+	int	      order;
+	unsigned long tmp;
+
+	for (order = 0, tmp = size; tmp >>= 1; ++order);
+	if (size & ~(1 << order)) ++order;
+	return order;
+}
+
+int drm_addmap(dev_t kdev, u_long cmd, caddr_t data,
+	       int flags, struct proc *p)
+{
+	drm_device_t	*dev	= kdev->si_drv1;
+	drm_map_t	*map;
+	
+	if (!(dev->flags & (FREAD|FWRITE)))
+		return EACCES; /* Require read/write */
+
+	map	     = drm_alloc(sizeof(*map), DRM_MEM_MAPS);
+	if (!map) return ENOMEM;
+	*map = *(drm_map_t *) data;
+
+	DRM_DEBUG("offset = 0x%08lx, size = 0x%08lx, type = %d\n",
+		  map->offset, map->size, map->type);
+	if ((map->offset & (PAGE_SIZE-1)) || (map->size & (PAGE_SIZE-1))) {
+		drm_free(map, sizeof(*map), DRM_MEM_MAPS);
+		DRM_DEBUG("offset or size not page aligned\n");
+		return EINVAL;
+	}
+	map->mtrr   = -1;
+	map->handle = 0;
+
+	switch (map->type) {
+	case _DRM_REGISTERS:
+	case _DRM_FRAME_BUFFER:	
+		if (map->offset + map->size < map->offset
+		    /* || map->offset < virt_to_phys(high_memory) */) {
+			drm_free(map, sizeof(*map), DRM_MEM_MAPS);
+			DRM_DEBUG("bad frame buffer size\n");
+			return EINVAL;
+		}
+#ifdef CONFIG_MTRR
+		if (map->type == _DRM_FRAME_BUFFER
+		    || (map->flags & _DRM_WRITE_COMBINING)) {
+			map->mtrr = mtrr_add(map->offset, map->size,
+					     MTRR_TYPE_WRCOMB, 1);
+		}
+#endif
+		map->handle = drm_ioremap(map->offset, map->size);
+		break;
+			
+
+	case _DRM_SHM:
+		DRM_DEBUG("%ld %d\n", map->size, drm_order(map->size));
+		map->handle = (void *)drm_alloc_pages(drm_order(map->size)
+						      - PAGE_SHIFT,
+						      DRM_MEM_SAREA);
+		if (!map->handle) {
+			drm_free(map, sizeof(*map), DRM_MEM_MAPS);
+			return ENOMEM;
+		}
+		map->offset = (unsigned long)map->handle;
+		if (map->flags & _DRM_CONTAINS_LOCK) {
+			dev->lock.hw_lock = map->handle; /* Pointer to lock */
+		}
+		break;
+#ifdef DRM_AGP
+	case _DRM_AGP:
+		map->offset = map->offset + dev->agp->base;
+		break;
+#endif
+	default:
+		drm_free(map, sizeof(*map), DRM_MEM_MAPS);
+		DRM_DEBUG("bad type\n");
+		return EINVAL;
+	}
+
+	lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, curproc);
+	if (dev->maplist) {
+		++dev->map_count;
+		dev->maplist = drm_realloc(dev->maplist,
+					   (dev->map_count-1)
+					   * sizeof(*dev->maplist),
+					   dev->map_count
+					   * sizeof(*dev->maplist),
+					   DRM_MEM_MAPS);
+	} else {
+		dev->map_count = 1;
+		dev->maplist = drm_alloc(dev->map_count*sizeof(*dev->maplist),
+					 DRM_MEM_MAPS);
+	}
+	dev->maplist[dev->map_count-1] = map;
+	lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc);
+
+	*(drm_map_t *) data = *map;
+	if (map->type != _DRM_SHM)
+		((drm_map_t *)data)->handle = (void *) map->offset;
+
+	return 0;
+}
+
+int drm_addbufs(dev_t kdev, u_long cmd, caddr_t data,
+		int flags, struct proc *p)
+{
+	drm_device_t	 *dev	 = kdev->si_drv1;
+	drm_device_dma_t *dma	 = dev->dma;
+	drm_buf_desc_t	 request;
+	int		 count;
+	int		 order;
+	int		 size;
+	int		 total;
+	int		 page_order;
+	drm_buf_entry_t	 *entry;
+	unsigned long	 page;
+	drm_buf_t	 *buf;
+	int		 alignment;
+	unsigned long	 offset;
+	int		 i;
+	int		 byte_count;
+	int		 page_count;
+
+	if (!dma) return EINVAL;
+
+	request = *(drm_buf_desc_t *) data;
+
+	count	   = request.count;
+	order	   = drm_order(request.size);
+	size	   = 1 << order;
+	
+	DRM_DEBUG("count = %d, size = %d (%d), order = %d, queue_count = %d\n",
+		  request.count, request.size, size, order, dev->queue_count);
+
+	if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER) return EINVAL;
+	if (dev->queue_count) return EBUSY; /* Not while in use */
+
+	alignment  = (request.flags & _DRM_PAGE_ALIGN) ? round_page(size) :size;
+	page_order = order - PAGE_SHIFT > 0 ? order - PAGE_SHIFT : 0;
+	total	   = PAGE_SIZE << page_order;
+
+	simple_lock(&dev->count_lock);
+	if (dev->buf_use) {
+		simple_unlock(&dev->count_lock);
+		return EBUSY;
+	}
+	atomic_inc(&dev->buf_alloc);
+	simple_unlock(&dev->count_lock);
+	
+	lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, curproc);
+	entry = &dma->bufs[order];
+	if (entry->buf_count) {
+		lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc);
+		atomic_dec(&dev->buf_alloc);
+		return ENOMEM;	/* May only call once for each order */
+	}
+	
+	entry->buflist = drm_alloc(count * sizeof(*entry->buflist),
+				   DRM_MEM_BUFS);
+	if (!entry->buflist) {
+		lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc);
+		atomic_dec(&dev->buf_alloc);
+		return ENOMEM;
+	}
+	memset(entry->buflist, 0, count * sizeof(*entry->buflist));
+
+	entry->seglist = drm_alloc(count * sizeof(*entry->seglist),
+				   DRM_MEM_SEGS);
+	if (!entry->seglist) {
+		drm_free(entry->buflist,
+			 count * sizeof(*entry->buflist),
+			 DRM_MEM_BUFS);
+		lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc);
+		atomic_dec(&dev->buf_alloc);
+		return ENOMEM;
+	}
+	memset(entry->seglist, 0, count * sizeof(*entry->seglist));
+
+	dma->pagelist = drm_realloc(dma->pagelist,
+				    dma->page_count * sizeof(*dma->pagelist),
+				    (dma->page_count + (count << page_order))
+				    * sizeof(*dma->pagelist),
+				    DRM_MEM_PAGES);
+	DRM_DEBUG("pagelist: %d entries\n",
+		  dma->page_count + (count << page_order));
+
+
+	entry->buf_size	  = size;
+	entry->page_order = page_order;
+	byte_count	  = 0;
+	page_count	  = 0;
+	while (entry->buf_count < count) {
+		if (!(page = drm_alloc_pages(page_order, DRM_MEM_DMA))) break;
+		entry->seglist[entry->seg_count++] = page;
+		for (i = 0; i < (1 << page_order); i++) {
+			DRM_DEBUG("page %d @ 0x%08lx\n",
+				  dma->page_count + page_count,
+				  page + PAGE_SIZE * i);
+			dma->pagelist[dma->page_count + page_count++]
+				= page + PAGE_SIZE * i;
+		}
+		for (offset = 0;
+		     offset + size <= total && entry->buf_count < count;
+		     offset += alignment, ++entry->buf_count) {
+			buf	     = &entry->buflist[entry->buf_count];
+			buf->idx     = dma->buf_count + entry->buf_count;
+			buf->total   = alignment;
+			buf->order   = order;
+			buf->used    = 0;
+			buf->offset  = (dma->byte_count + byte_count + offset);
+			buf->address = (void *)(page + offset);
+			buf->next    = NULL;
+			buf->waiting = 0;
+			buf->pending = 0;
+			buf->dma_wait = 0;
+			buf->pid     = 0;
+#if DRM_DMA_HISTOGRAM
+			timespecclear(&buf->time_queued);
+			timespecclear(&buf->time_dispatched);
+			timespecclear(&buf->time_completed);
+			timespecclear(&buf->time_freed);
+#endif
+			DRM_DEBUG("buffer %d @ %p\n",
+				  entry->buf_count, buf->address);
+		}
+		byte_count += PAGE_SIZE << page_order;
+	}
+
+	dma->buflist = drm_realloc(dma->buflist,
+				   dma->buf_count * sizeof(*dma->buflist),
+				   (dma->buf_count + entry->buf_count)
+				   * sizeof(*dma->buflist),
+				   DRM_MEM_BUFS);
+	for (i = dma->buf_count; i < dma->buf_count + entry->buf_count; i++)
+		dma->buflist[i] = &entry->buflist[i - dma->buf_count];
+
+	dma->buf_count	+= entry->buf_count;
+	dma->seg_count	+= entry->seg_count;
+	dma->page_count += entry->seg_count << page_order;
+	dma->byte_count += PAGE_SIZE * (entry->seg_count << page_order);
+	
+	drm_freelist_create(&entry->freelist, entry->buf_count);
+	for (i = 0; i < entry->buf_count; i++) {
+		drm_freelist_put(dev, &entry->freelist, &entry->buflist[i]);
+	}
+	
+	lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc);
+
+	request.count = entry->buf_count;
+	request.size  = size;
+
+	*(drm_buf_desc_t *) data = request;
+	
+	atomic_dec(&dev->buf_alloc);
+	return 0;
+}
+
+int drm_infobufs(dev_t kdev, u_long cmd, caddr_t data,
+		 int flags, struct proc *p)
+{
+	drm_device_t	 *dev	 = kdev->si_drv1;
+	drm_device_dma_t *dma	 = dev->dma;
+	drm_buf_info_t	 request;
+	int		 i;
+	int		 count;
+
+	if (!dma) return EINVAL;
+
+	simple_lock(&dev->count_lock);
+	if (atomic_read(&dev->buf_alloc)) {
+		simple_unlock(&dev->count_lock);
+		return EBUSY;
+	}
+	++dev->buf_use;		/* Can't allocate more after this call */
+	simple_unlock(&dev->count_lock);
+
+	request = *(drm_buf_info_t *) data;
+
+	for (i = 0, count = 0; i < DRM_MAX_ORDER+1; i++) {
+		if (dma->bufs[i].buf_count) ++count;
+	}
+	
+	DRM_DEBUG("count = %d\n", count);
+	
+	if (request.count >= count) {
+		for (i = 0, count = 0; i < DRM_MAX_ORDER+1; i++) {
+			if (dma->bufs[i].buf_count) {
+				int error;
+				error = copyout(&dma->bufs[i].buf_count,
+						&request.list[count].count,
+						sizeof(dma->bufs[0]
+						       .buf_count));
+				if (error) return error;
+				error = copyout(&dma->bufs[i].buf_size,
+						&request.list[count].size,
+						sizeof(dma->bufs[0].buf_size));
+				if (error) return error;
+				error = copyout(&dma->bufs[i]
+						.freelist.low_mark,
+						&request.list[count].low_mark,
+						sizeof(dma->bufs[0]
+						       .freelist.low_mark));
+				if (error) return error;
+				error = copyout(&dma->bufs[i]
+						.freelist.high_mark,
+						&request.list[count].high_mark,
+						sizeof(dma->bufs[0]
+						       .freelist.high_mark));
+				if (error) return error;
+				DRM_DEBUG("%d %d %d %d %d\n",
+					  i,
+					  dma->bufs[i].buf_count,
+					  dma->bufs[i].buf_size,
+					  dma->bufs[i].freelist.low_mark,
+					  dma->bufs[i].freelist.high_mark);
+				++count;
+			}
+		}
+	}
+	request.count = count;
+
+	*(drm_buf_info_t *) data = request;
+	
+	return 0;
+}
+
+int drm_markbufs(dev_t kdev, u_long cmd, caddr_t data,
+		 int flags, struct proc *p)
+{
+	drm_device_t	 *dev	 = kdev->si_drv1;
+	drm_device_dma_t *dma	 = dev->dma;
+	drm_buf_desc_t	 request;
+	int		 order;
+	drm_buf_entry_t	 *entry;
+
+	if (!dma) return EINVAL;
+
+	request = *(drm_buf_desc_t *) data;
+
+	DRM_DEBUG("%d, %d, %d\n",
+		  request.size, request.low_mark, request.high_mark);
+	order = drm_order(request.size);
+	if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER) return EINVAL;
+	entry = &dma->bufs[order];
+
+	if (request.low_mark < 0 || request.low_mark > entry->buf_count)
+		return EINVAL;
+	if (request.high_mark < 0 || request.high_mark > entry->buf_count)
+		return EINVAL;
+
+	entry->freelist.low_mark  = request.low_mark;
+	entry->freelist.high_mark = request.high_mark;
+	
+	return 0;
+}
+
+int drm_freebufs(dev_t kdev, u_long cmd, caddr_t data,
+		 int flags, struct proc *p)
+{
+	drm_device_t	 *dev	 = kdev->si_drv1;
+	drm_device_dma_t *dma	 = dev->dma;
+	drm_buf_free_t	 request;
+	int		 i;
+	int		 idx;
+	int		 error;
+	drm_buf_t	 *buf;
+
+	if (!dma) return EINVAL;
+
+	request = *(drm_buf_free_t *) data;
+
+	DRM_DEBUG("%d\n", request.count);
+	for (i = 0; i < request.count; i++) {
+		error = copyin(&request.list[i], &idx, sizeof(idx));
+		if (error)
+			return error;
+		if (idx < 0 || idx >= dma->buf_count) {
+			DRM_ERROR("Index %d (of %d max)\n",
+				  idx, dma->buf_count - 1);
+			return EINVAL;
+		}
+		buf = dma->buflist[idx];
+		if (buf->pid != p->p_pid) {
+			DRM_ERROR("Process %d freeing buffer owned by %d\n",
+				  p->p_pid, buf->pid);
+			return EINVAL;
+		}
+		drm_free_buffer(dev, buf);
+	}
+	
+	return 0;
+}
+
+int drm_mapbufs(dev_t kdev, u_long cmd, caddr_t data,
+		int flags, struct proc *p)
+{
+	drm_device_t	 *dev	 = kdev->si_drv1;
+	drm_device_dma_t *dma	 = dev->dma;
+	int		 retcode = 0;
+	const int	 zero	 = 0;
+	vm_offset_t	 virtual;
+	vm_offset_t	 address;
+	drm_buf_map_t	 request;
+	int		 i;
+
+	if (!dma) return EINVAL;
+	
+	DRM_DEBUG("\n");
+
+	simple_lock(&dev->count_lock);
+	if (atomic_read(&dev->buf_alloc)) {
+		simple_unlock(&dev->count_lock);
+		return EBUSY;
+	}
+	++dev->buf_use;		/* Can't allocate more after this call */
+	simple_unlock(&dev->count_lock);
+
+	request = *(drm_buf_map_t *) data;
+
+	if (request.count >= dma->buf_count) {
+		virtual = 0;
+		retcode = vm_mmap(&p->p_vmspace->vm_map,
+				  &virtual,
+				  round_page(dma->byte_count),
+				  PROT_READ|PROT_WRITE, VM_PROT_ALL,
+				  MAP_SHARED,
+				  SLIST_FIRST(&kdev->si_hlist),
+				  0);
+		if (retcode)
+			goto done;
+
+		request.virtual = (void *)virtual;
+
+		for (i = 0; i < dma->buf_count; i++) {
+			retcode = copyout(&dma->buflist[i]->idx,
+					  &request.list[i].idx,
+					  sizeof(request.list[0].idx));
+			if (retcode) goto done;
+			retcode = copyout(&dma->buflist[i]->total,
+					  &request.list[i].total,
+					  sizeof(request.list[0].total));
+			if (retcode) goto done;
+			retcode = copyout(&zero,
+					  &request.list[i].used,
+					  sizeof(request.list[0].used));
+			if (retcode) goto done;
+			address = virtual + dma->buflist[i]->offset;
+			retcode = copyout(&address,
+					  &request.list[i].address,
+					  sizeof(address));
+			if (retcode) goto done;
+		}
+	}
+done:
+	request.count = dma->buf_count;
+	DRM_DEBUG("%d buffers, retcode = %d\n", request.count, retcode);
+
+	*(drm_buf_map_t *) data = request;
+
+	return retcode;
+}
diff --git a/bsd/drm/context.c b/bsd/drm/context.c
new file mode 100644
index 00000000..d79990f8
--- /dev/null
+++ b/bsd/drm/context.c
@@ -0,0 +1,297 @@
+/* context.c -- IOCTLs for contexts and DMA queues -*- c -*-
+ * Created: Tue Feb  2 08:37:54 1999 by faith@precisioninsight.com
+ * Revised: Fri Aug 20 11:32:09 1999 by faith@precisioninsight.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * 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
+ * PRECISION INSIGHT 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/context.c,v 1.5 1999/08/30 13:05:00 faith Exp $
+ * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/context.c,v 1.1 1999/09/25 14:37:58 dawes Exp $
+ *
+ */
+
+#define __NO_VERSION__
+#include "drmP.h"
+
+static int drm_init_queue(drm_device_t *dev, drm_queue_t *q, drm_ctx_t *ctx)
+{
+	DRM_DEBUG("\n");
+	
+	if (atomic_read(&q->use_count) != 1
+	    || atomic_read(&q->finalization)
+	    || atomic_read(&q->block_count)) {
+		DRM_ERROR("New queue is already in use: u%d f%d b%d\n",
+			  atomic_read(&q->use_count),
+			  atomic_read(&q->finalization),
+			  atomic_read(&q->block_count));
+	}
+		  
+	atomic_set(&q->finalization,  0);
+	atomic_set(&q->block_count,   0);
+	atomic_set(&q->block_read,    0);
+	atomic_set(&q->block_write,   0);
+	atomic_set(&q->total_queued,  0);
+	atomic_set(&q->total_flushed, 0);
+	atomic_set(&q->total_locks,   0);
+
+	q->write_queue = 0;
+	q->read_queue = 0;
+	q->flush_queue = 0;
+
+	q->flags = ctx->flags;
+
+	drm_waitlist_create(&q->waitlist, dev->dma->buf_count);
+
+	return 0;
+}
+
+
+/* drm_alloc_queue:
+PRE: 1) dev->queuelist[0..dev->queue_count] is allocated and will not
+	disappear (so all deallocation must be done after IOCTLs are off)
+     2) dev->queue_count < dev->queue_slots
+     3) dev->queuelist[i].use_count == 0 and
+	dev->queuelist[i].finalization == 0 if i not in use 
+POST: 1) dev->queuelist[i].use_count == 1
+      2) dev->queue_count < dev->queue_slots */
+		
+static int drm_alloc_queue(drm_device_t *dev)
+{
+	int	    i;
+	drm_queue_t *queue;
+	int	    oldslots;
+	int	    newslots;
+				/* Check for a free queue */
+	for (i = 0; i < dev->queue_count; i++) {
+		atomic_inc(&dev->queuelist[i]->use_count);
+		if (atomic_read(&dev->queuelist[i]->use_count) == 1
+		    && !atomic_read(&dev->queuelist[i]->finalization)) {
+			DRM_DEBUG("%d (free)\n", i);
+			return i;
+		}
+		atomic_dec(&dev->queuelist[i]->use_count);
+	}
+				/* Allocate a new queue */
+	lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, curproc);
+	
+	queue = drm_alloc(sizeof(*queue), DRM_MEM_QUEUES);
+	memset(queue, 0, sizeof(*queue));
+	atomic_set(&queue->use_count, 1);
+	
+	++dev->queue_count;
+	if (dev->queue_count >= dev->queue_slots) {
+		oldslots = dev->queue_slots * sizeof(*dev->queuelist);
+		if (!dev->queue_slots) dev->queue_slots = 1;
+		dev->queue_slots *= 2;
+		newslots = dev->queue_slots * sizeof(*dev->queuelist);
+
+		dev->queuelist = drm_realloc(dev->queuelist,
+					     oldslots,
+					     newslots,
+					     DRM_MEM_QUEUES);
+		if (!dev->queuelist) {
+			lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc);
+			DRM_DEBUG("out of memory\n");
+			return -ENOMEM;
+		}
+	}
+	dev->queuelist[dev->queue_count-1] = queue;
+	
+	lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc);
+	DRM_DEBUG("%d (new)\n", dev->queue_count - 1);
+	return dev->queue_count - 1;
+}
+
+int drm_resctx(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
+{
+	drm_ctx_res_t	res;
+	drm_ctx_t	ctx;
+	int		i;
+	int		error;
+
+	DRM_DEBUG("%d\n", DRM_RESERVED_CONTEXTS);
+	res = *(drm_ctx_res_t *) data;
+	if (res.count >= DRM_RESERVED_CONTEXTS) {
+		memset(&ctx, 0, sizeof(ctx));
+		for (i = 0; i < DRM_RESERVED_CONTEXTS; i++) {
+			ctx.handle = i;
+			error = copyout(&i, &res.contexts[i],
+					sizeof(i));
+			if (error) return error;
+		}
+	}
+	res.count = DRM_RESERVED_CONTEXTS;
+	*(drm_ctx_res_t *) data = res;
+	return 0;
+}
+
+
+int drm_addctx(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
+{
+	drm_device_t	*dev	= kdev->si_drv1;
+	drm_ctx_t	ctx;
+
+	ctx = *(drm_ctx_t *) data;
+	if ((ctx.handle = drm_alloc_queue(dev)) == DRM_KERNEL_CONTEXT) {
+				/* Init kernel's context and get a new one. */
+		drm_init_queue(dev, dev->queuelist[ctx.handle], &ctx);
+		ctx.handle = drm_alloc_queue(dev);
+	}
+	drm_init_queue(dev, dev->queuelist[ctx.handle], &ctx);
+	DRM_DEBUG("%d\n", ctx.handle);
+	*(drm_ctx_t *) data = ctx;
+	return 0;
+}
+
+int drm_modctx(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
+{
+	drm_device_t	*dev	= kdev->si_drv1;
+	drm_ctx_t	ctx;
+	drm_queue_t	*q;
+		
+	ctx = *(drm_ctx_t *) data;
+	
+	DRM_DEBUG("%d\n", ctx.handle);
+	
+	if (ctx.handle < 0 || ctx.handle >= dev->queue_count) return -EINVAL;
+	q = dev->queuelist[ctx.handle];
+	
+	atomic_inc(&q->use_count);
+	if (atomic_read(&q->use_count) == 1) {
+				/* No longer in use */
+		atomic_dec(&q->use_count);
+		return -EINVAL;
+	}
+
+	if (DRM_BUFCOUNT(&q->waitlist)) {
+		atomic_dec(&q->use_count);
+		return -EBUSY;
+	}
+	
+	q->flags = ctx.flags;
+	
+	atomic_dec(&q->use_count);
+	return 0;
+}
+
+int drm_getctx(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
+{
+	drm_device_t	*dev	= kdev->si_drv1;
+	drm_ctx_t	ctx;
+	drm_queue_t	*q;
+		
+	ctx = *(drm_ctx_t *) data;
+	
+	DRM_DEBUG("%d\n", ctx.handle);
+	
+	if (ctx.handle >= dev->queue_count) return -EINVAL;
+	q = dev->queuelist[ctx.handle];
+	
+	atomic_inc(&q->use_count);
+	if (atomic_read(&q->use_count) == 1) {
+				/* No longer in use */
+		atomic_dec(&q->use_count);
+		return -EINVAL;
+	}
+	
+	ctx.flags = q->flags;
+	atomic_dec(&q->use_count);
+	
+	*(drm_ctx_t *) data = ctx;
+	
+	return 0;
+}
+
+int drm_switchctx(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
+{
+	drm_device_t	*dev	= kdev->si_drv1;
+	drm_ctx_t	ctx;
+
+	ctx = *(drm_ctx_t *) data;
+	DRM_DEBUG("%d\n", ctx.handle);
+	return drm_context_switch(dev, dev->last_context, ctx.handle);
+}
+
+int drm_newctx(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
+{
+	drm_device_t	*dev	= kdev->si_drv1;
+	drm_ctx_t	ctx;
+
+	ctx = *(drm_ctx_t *) data;
+	DRM_DEBUG("%d\n", ctx.handle);
+	drm_context_switch_complete(dev, ctx.handle);
+
+	return 0;
+}
+
+int drm_rmctx(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
+{
+	drm_device_t	*dev	= kdev->si_drv1;
+	drm_ctx_t	ctx;
+	drm_queue_t	*q;
+	drm_buf_t	*buf;
+
+	ctx = *(drm_ctx_t *) data;
+	DRM_DEBUG("%d\n", ctx.handle);
+	
+	if (ctx.handle >= dev->queue_count) return -EINVAL;
+	q = dev->queuelist[ctx.handle];
+	
+	atomic_inc(&q->use_count);
+	if (atomic_read(&q->use_count) == 1) {
+				/* No longer in use */
+		atomic_dec(&q->use_count);
+		return -EINVAL;
+	}
+	
+	atomic_inc(&q->finalization); /* Mark queue in finalization state */
+	atomic_sub(2, &q->use_count); /* Mark queue as unused (pending
+					 finalization) */
+
+	/* Wait while interrupt servicing is in progress */
+	while (test_and_set_bit(0, &dev->interrupt_flag)) {
+		int never;
+		int error = tsleep(&never, PZERO|PCATCH, "drmrc", 1);
+		if (error) {
+			clear_bit(0, &dev->interrupt_flag);
+			return error;
+		}
+	}
+				/* Remove queued buffers */
+	while ((buf = drm_waitlist_get(&q->waitlist))) {
+		drm_free_buffer(dev, buf);
+	}
+	clear_bit(0, &dev->interrupt_flag);
+	
+				/* Wakeup blocked processes */
+	wakeup(&q->read_queue);
+	wakeup(&q->write_queue);
+	wakeup(&q->flush_queue);
+	
+				/* Finalization over.  Queue is made
+				   available when both use_count and
+				   finalization become 0, which won't
+				   happen until all the waiting processes
+				   stop waiting. */
+	atomic_dec(&q->finalization);
+	return 0;
+}
diff --git a/bsd/drm/dma.c b/bsd/drm/dma.c
new file mode 100644
index 00000000..149f4593
--- /dev/null
+++ b/bsd/drm/dma.c
@@ -0,0 +1,534 @@
+/* dma.c -- DMA IOCTL and function support -*- c -*-
+ * Created: Fri Mar 19 14:30:16 1999 by faith@precisioninsight.com
+ * Revised: Thu Sep 16 12:55:39 1999 by faith@precisioninsight.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * 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
+ * PRECISION INSIGHT 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/dma.c,v 1.7 1999/09/16 16:56:18 faith Exp $
+ * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/dma.c,v 1.1 1999/09/25 14:37:58 dawes Exp $
+ *
+ */
+
+#define __NO_VERSION__
+#include "drmP.h"
+
+void drm_dma_setup(drm_device_t *dev)
+{
+	int i;
+	
+	dev->dma = drm_alloc(sizeof(*dev->dma), DRM_MEM_DRIVER);
+	memset(dev->dma, 0, sizeof(*dev->dma));
+	for (i = 0; i <= DRM_MAX_ORDER; i++)
+		memset(&dev->dma->bufs[i], 0, sizeof(dev->dma->bufs[0]));
+}
+
+void drm_dma_takedown(drm_device_t *dev)
+{
+	drm_device_dma_t  *dma = dev->dma;
+	int		  i, j;
+
+	if (!dma) return;
+	
+				/* Clear dma buffers */
+	for (i = 0; i <= DRM_MAX_ORDER; i++) {
+		if (dma->bufs[i].seg_count) {
+			DRM_DEBUG("order %d: buf_count = %d,"
+				  " seg_count = %d\n",
+				  i,
+				  dma->bufs[i].buf_count,
+				  dma->bufs[i].seg_count);
+			for (j = 0; j < dma->bufs[i].seg_count; j++) {
+				drm_free_pages(dma->bufs[i].seglist[j],
+					       dma->bufs[i].page_order,
+					       DRM_MEM_DMA);
+			}
+			drm_free(dma->bufs[i].buflist,
+				 dma->buf_count
+				 * sizeof(*dma->bufs[0].buflist),
+				 DRM_MEM_BUFS);
+			drm_free(dma->bufs[i].seglist,
+				 dma->buf_count
+				 * sizeof(*dma->bufs[0].seglist),
+				 DRM_MEM_SEGS);
+			drm_freelist_destroy(&dma->bufs[i].freelist);
+		}
+	}
+	
+	if (dma->buflist) {
+		drm_free(dma->buflist,
+			 dma->buf_count * sizeof(*dma->buflist),
+			 DRM_MEM_BUFS);
+	}
+
+	if (dma->pagelist) {
+		drm_free(dma->pagelist,
+			 dma->page_count * sizeof(*dma->pagelist),
+			 DRM_MEM_PAGES);
+	}
+	drm_free(dev->dma, sizeof(*dev->dma), DRM_MEM_DRIVER);
+	dev->dma = NULL;
+}
+
+#if DRM_DMA_HISTOGRAM
+/* This is slow, but is useful for debugging. */
+int drm_histogram_slot(struct timespec *ts)
+{
+	long count = ts->tv_sec * 1000 + ts->tv_nsec / 1000000;
+	int value = DRM_DMA_HISTOGRAM_INITIAL;
+	int slot;
+
+	for (slot = 0;
+	     slot < DRM_DMA_HISTOGRAM_SLOTS;
+	     ++slot, value = DRM_DMA_HISTOGRAM_NEXT(value)) {
+		if (count < value) return slot;
+	}
+	return DRM_DMA_HISTOGRAM_SLOTS - 1;
+}
+
+void drm_histogram_compute(drm_device_t *dev, drm_buf_t *buf)
+{
+	struct timespec queued_to_dispatched;
+	struct timespec dispatched_to_completed;
+	struct timespec completed_to_freed;
+	int	 q2d, d2c, c2f, q2c, q2f;
+	
+	if (timespecisset(&buf->time_queued)) {
+		queued_to_dispatched = buf->time_dispatched;
+		timespecsub(&queued_to_dispatched, &buf->time_queued);
+		dispatched_to_completed = buf->time_completed;
+		timespecsub(&dispatched_to_completed, &buf->time_dispatched);
+		completed_to_freed = buf->time_freed;
+		timespecsub(&completed_to_freed, &buf->time_completed);
+
+		q2d = drm_histogram_slot(&queued_to_dispatched);
+		d2c = drm_histogram_slot(&dispatched_to_completed);
+		c2f = drm_histogram_slot(&completed_to_freed);
+
+		timespecadd(&queued_to_dispatched, &dispatched_to_completed);
+		q2c = drm_histogram_slot(&queued_to_dispatched);
+		timespecadd(&queued_to_dispatched, &completed_to_freed);
+		q2f = drm_histogram_slot(&queued_to_dispatched);
+		
+		atomic_inc(&dev->histo.total);
+		atomic_inc(&dev->histo.queued_to_dispatched[q2d]);
+		atomic_inc(&dev->histo.dispatched_to_completed[d2c]);
+		atomic_inc(&dev->histo.completed_to_freed[c2f]);
+		
+		atomic_inc(&dev->histo.queued_to_completed[q2c]);
+		atomic_inc(&dev->histo.queued_to_freed[q2f]);
+
+	}
+	timespecclear(&buf->time_queued);
+	timespecclear(&buf->time_dispatched);
+	timespecclear(&buf->time_completed);
+	timespecclear(&buf->time_freed);
+}
+#endif
+
+void drm_free_buffer(drm_device_t *dev, drm_buf_t *buf)
+{
+	drm_device_dma_t *dma = dev->dma;
+
+	if (!buf) return;
+	
+	buf->waiting  = 0;
+	buf->pending  = 0;
+	buf->pid      = 0;
+	buf->used     = 0;
+#if DRM_DMA_HISTOGRAMxx
+	buf->time_completed = get_cycles();
+#endif
+	if (buf->dma_wait) {
+		buf->dma_wait = 0;
+		wakeup(&buf->dma_wait);
+	} else {
+				/* If processes are waiting, the last one
+				   to wake will put the buffer on the free
+				   list.  If no processes are waiting, we
+				   put the buffer on the freelist here. */
+		drm_freelist_put(dev, &dma->bufs[buf->order].freelist, buf);
+	}
+}
+
+void drm_reclaim_buffers(drm_device_t *dev, pid_t pid)
+{
+	drm_device_dma_t *dma = dev->dma;
+	int		 i;
+
+	if (!dma) return;
+	for (i = 0; i < dma->buf_count; i++) {
+		if (dma->buflist[i]->pid == pid) {
+			switch (dma->buflist[i]->list) {
+			case DRM_LIST_NONE:
+				drm_free_buffer(dev, dma->buflist[i]);
+				break;
+			case DRM_LIST_WAIT:
+				dma->buflist[i]->list = DRM_LIST_RECLAIM;
+				break;
+			default:
+				/* Buffer already on hardware. */
+				break;
+			}
+		}
+	}
+}
+
+int drm_context_switch(drm_device_t *dev, int old, int new)
+{
+	char	    buf[64];
+	drm_queue_t *q;
+
+	atomic_inc(&dev->total_ctx);
+
+	if (test_and_set_bit(0, &dev->context_flag)) {
+		DRM_ERROR("Reentering -- FIXME\n");
+		return EBUSY;
+	}
+
+#if DRM_DMA_HISTOGRAM
+	getnanotime(&dev->ctx_start);
+#endif
+	
+	DRM_DEBUG("Context switch from %d to %d\n", old, new);
+
+	if (new >= dev->queue_count) {
+		clear_bit(0, &dev->context_flag);
+		return EINVAL;
+	}
+
+	if (new == dev->last_context) {
+		clear_bit(0, &dev->context_flag);
+		return 0;
+	}
+	
+	q = dev->queuelist[new];
+	atomic_inc(&q->use_count);
+	if (atomic_read(&q->use_count) == 1) {
+		atomic_dec(&q->use_count);
+		clear_bit(0, &dev->context_flag);
+		return EINVAL;
+	}
+
+	if (drm_flags & DRM_FLAG_NOCTX) {
+		drm_context_switch_complete(dev, new);
+	} else {
+		sprintf(buf, "C %d %d\n", old, new);
+		drm_write_string(dev, buf);
+	}
+	
+	atomic_dec(&q->use_count);
+	
+	return 0;
+}
+
+int drm_context_switch_complete(drm_device_t *dev, int new)
+{
+	drm_device_dma_t *dma = dev->dma;
+	
+	dev->last_context = new;  /* PRE/POST: This is the _only_ writer. */
+	dev->last_switch = ticks;
+	
+	if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
+		DRM_ERROR("Lock isn't held after context switch\n");
+	}
+
+	if (!dma || !(dma->next_buffer && dma->next_buffer->while_locked)) {
+		if (drm_lock_free(dev, &dev->lock.hw_lock->lock,
+				  DRM_KERNEL_CONTEXT)) {
+			DRM_ERROR("Cannot free lock\n");
+		}
+	}
+	
+#if DRM_DMA_HISTOGRAM
+	{
+		struct timespec ts;
+		getnanotime(&ts);
+		timespecsub(&ts, &dev->ctx_start);
+		atomic_inc(&dev->histo.ctx[drm_histogram_slot(&ts)]);
+	}
+#endif
+	clear_bit(0, &dev->context_flag);
+	wakeup(&dev->context_wait);
+	
+	return 0;
+}
+
+void drm_clear_next_buffer(drm_device_t *dev)
+{
+	drm_device_dma_t *dma = dev->dma;
+	
+	dma->next_buffer = NULL;
+	if (dma->next_queue && !DRM_BUFCOUNT(&dma->next_queue->waitlist)) {
+		wakeup(&dma->next_queue->flush_queue);
+	}
+	dma->next_queue	 = NULL;
+}
+
+
+int drm_select_queue(drm_device_t *dev, void (*wrapper)(void *))
+{
+	int	   i;
+	int	   candidate = -1;
+	int	   j	     = ticks;
+
+	if (!dev) {
+		DRM_ERROR("No device\n");
+		return -1;
+	}
+	if (!dev->queuelist || !dev->queuelist[DRM_KERNEL_CONTEXT]) {
+				/* This only happens between the time the
+				   interrupt is initialized and the time
+				   the queues are initialized. */
+		return -1;
+	}
+
+				/* Doing "while locked" DMA? */
+	if (DRM_WAITCOUNT(dev, DRM_KERNEL_CONTEXT)) {
+		return DRM_KERNEL_CONTEXT;
+	}
+
+				/* If there are buffers on the last_context
+				   queue, and we have not been executing
+				   this context very long, continue to
+				   execute this context. */
+	if (dev->last_switch <= j
+	    && dev->last_switch + DRM_TIME_SLICE > j
+	    && DRM_WAITCOUNT(dev, dev->last_context)) {
+		return dev->last_context;
+	}
+
+				/* Otherwise, find a candidate */
+	for (i = dev->last_checked + 1; i < dev->queue_count; i++) {
+		if (DRM_WAITCOUNT(dev, i)) {
+			candidate = dev->last_checked = i;
+			break;
+		}
+	}
+
+	if (candidate < 0) {
+		for (i = 0; i < dev->queue_count; i++) {
+			if (DRM_WAITCOUNT(dev, i)) {
+				candidate = dev->last_checked = i;
+				break;
+			}
+		}
+	}
+
+	if (wrapper
+	    && candidate >= 0
+	    && candidate != dev->last_context
+	    && dev->last_switch <= j
+	    && dev->last_switch + DRM_TIME_SLICE > j) {
+		int s = splclock();
+		if (dev->timer.c_time != dev->last_switch + DRM_TIME_SLICE) {
+			callout_reset(&dev->timer,
+				      dev->last_switch + DRM_TIME_SLICE - j,
+				      wrapper,
+				      dev);
+		}
+		splx(s);
+		return -1;
+	}
+
+	return candidate;
+}
+
+
+int drm_dma_enqueue(drm_device_t *dev, drm_dma_t *d)
+{
+	int		  i;
+	drm_queue_t	  *q;
+	drm_buf_t	  *buf;
+	int		  idx;
+	int		  while_locked = 0;
+	drm_device_dma_t  *dma = dev->dma;
+	int		  error;
+
+	DRM_DEBUG("%d\n", d->send_count);
+
+	if (d->flags & _DRM_DMA_WHILE_LOCKED) {
+		int context = dev->lock.hw_lock->lock;
+		
+		if (!_DRM_LOCK_IS_HELD(context)) {
+			DRM_ERROR("No lock held during \"while locked\""
+				  " request\n");
+			return EINVAL;
+		}
+		if (d->context != _DRM_LOCKING_CONTEXT(context)
+		    && _DRM_LOCKING_CONTEXT(context) != DRM_KERNEL_CONTEXT) {
+			DRM_ERROR("Lock held by %d while %d makes"
+				  " \"while locked\" request\n",
+				  _DRM_LOCKING_CONTEXT(context),
+				  d->context);
+			return EINVAL;
+		}
+		q = dev->queuelist[DRM_KERNEL_CONTEXT];
+		while_locked = 1;
+	} else {
+		q = dev->queuelist[d->context];
+	}
+
+
+	atomic_inc(&q->use_count);
+	if (atomic_read(&q->block_write)) {
+		atomic_inc(&q->block_count);
+		for (;;) {
+			if (!atomic_read(&q->block_write)) break;
+			error = tsleep(&q->block_write, PZERO|PCATCH,
+				       "dmawr", 0);
+			if (error) {
+				atomic_dec(&q->use_count);
+				return error;
+			}
+		}
+		atomic_dec(&q->block_count);
+	}
+	
+	for (i = 0; i < d->send_count; i++) {
+		idx = d->send_indices[i];
+		if (idx < 0 || idx >= dma->buf_count) {
+			atomic_dec(&q->use_count);
+			DRM_ERROR("Index %d (of %d max)\n",
+				  d->send_indices[i], dma->buf_count - 1);
+			return EINVAL;
+		}
+		buf = dma->buflist[ idx ];
+		if (buf->pid != curproc->p_pid) {
+			atomic_dec(&q->use_count);
+			DRM_ERROR("Process %d using buffer owned by %d\n",
+				  curproc->p_pid, buf->pid);
+			return EINVAL;
+		}
+		if (buf->list != DRM_LIST_NONE) {
+			atomic_dec(&q->use_count);
+			DRM_ERROR("Process %d using buffer %d on list %d\n",
+				  curproc->p_pid, buf->idx, buf->list);
+		}
+		buf->used	  = d->send_sizes[i];
+		buf->while_locked = while_locked;
+		buf->context	  = d->context;
+		if (!buf->used) {
+			DRM_ERROR("Queueing 0 length buffer\n");
+		}
+		if (buf->pending) {
+			atomic_dec(&q->use_count);
+			DRM_ERROR("Queueing pending buffer:"
+				  " buffer %d, offset %d\n",
+				  d->send_indices[i], i);
+			return EINVAL;
+		}
+		if (buf->waiting) {
+			atomic_dec(&q->use_count);
+			DRM_ERROR("Queueing waiting buffer:"
+				  " buffer %d, offset %d\n",
+				  d->send_indices[i], i);
+			return EINVAL;
+		}
+		buf->waiting = 1;
+		if (atomic_read(&q->use_count) == 1
+		    || atomic_read(&q->finalization)) {
+			drm_free_buffer(dev, buf);
+		} else {
+			drm_waitlist_put(&q->waitlist, buf);
+			atomic_inc(&q->total_queued);
+		}
+	}
+	atomic_dec(&q->use_count);
+	
+	return 0;
+}
+
+static int drm_dma_get_buffers_of_order(drm_device_t *dev, drm_dma_t *d,
+					int order)
+{
+	int		  i;
+	int		  error;
+	drm_buf_t	  *buf;
+	drm_device_dma_t  *dma = dev->dma;
+	
+	for (i = d->granted_count; i < d->request_count; i++) {
+		buf = drm_freelist_get(&dma->bufs[order].freelist,
+				       d->flags & _DRM_DMA_WAIT);
+		if (!buf) break;
+		if (buf->pending || buf->waiting) {
+			DRM_ERROR("Free buffer %d in use by %d (w%d, p%d)\n",
+				  buf->idx,
+				  buf->pid,
+				  buf->waiting,
+				  buf->pending);
+		}
+		buf->pid     = curproc->p_pid;
+		error = copyout(&buf->idx,
+				&d->request_indices[i],
+				sizeof(buf->idx));
+		if (error)
+			return error;
+		error = copyout(&buf->total,
+				&d->request_sizes[i],
+				sizeof(buf->total));
+		if (error)
+			return error;
+		++d->granted_count;
+	}
+	return 0;
+}
+
+
+int drm_dma_get_buffers(drm_device_t *dev, drm_dma_t *dma)
+{
+	int		  order;
+	int		  retcode = 0;
+	int		  tmp_order;
+	
+	order = drm_order(dma->request_size);
+
+	dma->granted_count = 0;
+	retcode		   = drm_dma_get_buffers_of_order(dev, dma, order);
+
+	if (dma->granted_count < dma->request_count
+	    && (dma->flags & _DRM_DMA_SMALLER_OK)) {
+		for (tmp_order = order - 1;
+		     !retcode
+			     && dma->granted_count < dma->request_count
+			     && tmp_order >= DRM_MIN_ORDER;
+		     --tmp_order) {
+			
+			retcode = drm_dma_get_buffers_of_order(dev, dma,
+							       tmp_order);
+		}
+	}
+
+	if (dma->granted_count < dma->request_count
+	    && (dma->flags & _DRM_DMA_LARGER_OK)) {
+		for (tmp_order = order + 1;
+		     !retcode
+			     && dma->granted_count < dma->request_count
+			     && tmp_order <= DRM_MAX_ORDER;
+		     ++tmp_order) {
+			
+			retcode = drm_dma_get_buffers_of_order(dev, dma,
+							       tmp_order);
+		}
+	}
+	return 0;
+}
diff --git a/bsd/drm/drawable.c b/bsd/drm/drawable.c
new file mode 100644
index 00000000..d8005af6
--- /dev/null
+++ b/bsd/drm/drawable.c
@@ -0,0 +1,50 @@
+/* drawable.c -- IOCTLs for drawables -*- c -*-
+ * Created: Tue Feb  2 08:37:54 1999 by faith@precisioninsight.com
+ * Revised: Fri Aug 20 09:27:03 1999 by faith@precisioninsight.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * 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
+ * PRECISION INSIGHT 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/drawable.c,v 1.3 1999/08/30 13:05:00 faith Exp $
+ * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/drawable.c,v 1.1 1999/09/25 14:37:58 dawes Exp $
+ *
+ */
+
+#define __NO_VERSION__
+#include "drmP.h"
+
+int drm_adddraw(dev_t kdev, u_long cmd, caddr_t data,
+		int flags, struct proc *p)
+{
+	drm_draw_t draw;
+
+	draw.handle = 0;	/* NOOP */
+	DRM_DEBUG("%d\n", draw.handle);
+	*(drm_draw_t *) data = draw;
+	return 0;
+}
+
+int drm_rmdraw(dev_t kdev, u_long cmd, caddr_t data,
+	       int flags, struct proc *p)
+{
+	return 0;		/* NOOP */
+}
diff --git a/bsd/drm/drmstat.c b/bsd/drm/drmstat.c
new file mode 100644
index 00000000..0ce76b01
--- /dev/null
+++ b/bsd/drm/drmstat.c
@@ -0,0 +1,418 @@
+/* drmstat.c -- DRM device status and testing program
+ * Created: Tue Jan  5 08:19:24 1999 by faith@precisioninsight.com
+ * Revised: Sun Aug  1 11:02:00 1999 by faith@precisioninsight.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * 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
+ * PRECISION INSIGHT 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/drmstat.c,v 1.28 1999/08/04 18:12:11 faith Exp $
+ * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/drmstat.c,v 1.1 1999/09/25 14:37:59 dawes Exp $
+ * 
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/time.h>
+#include <sys/mman.h>
+#include <strings.h>
+#include <errno.h>
+#include <signal.h>
+#include <fcntl.h>
+#include "xf86drm.h"
+
+int sigio_fd;
+
+static double usec(struct timeval *end, struct timeval *start)
+{
+    double e = end->tv_sec   * 1000000 + end->tv_usec;
+    double s = start->tv_sec * 1000000 + start->tv_usec;
+
+    return e - s;
+}
+
+static void getversion(int fd)
+{
+    drmVersionPtr version;
+    
+    version = drmGetVersion(fd);
+    if (version) {
+	printf( "Name: %s\n", version->name ? version->name : "?" );
+	printf( "    Version: %d.%d.%d\n",
+		version->version_major,
+		version->version_minor,
+		version->version_patchlevel );
+	printf( "    Date: %s\n", version->date ? version->date : "?" );
+	printf( "    Desc: %s\n", version->desc ? version->desc : "?" );
+	drmFreeVersion(version);
+    } else {
+	printf( "No driver available\n" );
+    }
+}
+	
+void handler(int fd, void *oldctx, void *newctx)
+{
+    printf("Got fd %d\n", fd);
+}
+
+void process_sigio(char *device)
+{
+    int              fd;
+
+printf("%s\n", device);
+    if ((fd = open(device, 0)) < 0) {
+printf("%d\n", errno);
+	drmError(-errno, __FUNCTION__);
+	exit(1);
+    }
+
+    sigio_fd = fd;
+    drmInstallSIGIOHandler(fd, handler);
+    for (;;) sleep(60);
+}
+
+int main(int argc, char **argv)
+{
+    int            c;
+    int            r  = 0;
+    int            fd = -1;
+    drmHandle      handle;
+    void           *address;
+    char           *pt;
+    unsigned long  count;
+    unsigned long  offset;
+    unsigned long  size;
+    drmContext     context;
+    int            loops;
+    char           buf[1024];
+    int            i;
+    drmBufInfoPtr  info;
+    drmBufMapPtr   bufs;
+    drmLockPtr     lock;
+    int            secs;
+
+    while ((c = getopt(argc, argv,
+		       "lc:vo:O:f:s:w:W:b:r:R:P:L:C:XS:B:F:")) != EOF)
+	switch (c) {
+	case 'F':
+	    count  = strtoul(optarg, NULL, 0);
+	    if (!fork()) {
+		dup(fd);
+		sleep(count);
+	    }
+	    close(fd);
+	    break;
+	case 'v': getversion(fd);                                        break;
+	case 'X':
+	    if ((r = drmCreateContext(fd, &context))) {
+		drmError(r, argv[0]);
+		return 1;
+	    }
+	    printf( "Got %d\n", context);
+	    break;
+	case 'S':
+	    process_sigio(optarg);
+	    break;
+	case 'C':
+	    if ((r = drmSwitchToContext(fd, strtoul(optarg, NULL, 0)))) {
+		drmError(r, argv[0]);
+		return 1;
+	    }
+	    break;
+	case 'c':
+	    if ((r = drmSetBusid(fd,optarg))) {
+		drmError(r, argv[0]);
+		return 1;
+	    }
+	    break;
+	case 'o':
+	    if ((fd = drmOpen(optarg, NULL)) < 0) {
+		drmError(fd, argv[0]);
+		return 1;
+	    }
+	    break;
+	case 'O':
+	    if ((fd = drmOpen(NULL, optarg)) < 0) {
+		drmError(fd, argv[0]);
+		return 1;
+	    }
+	    break;
+	case 'B':		/* Test buffer allocation */
+	    count  = strtoul(optarg, &pt, 0);
+	    size   = strtoul(pt+1, &pt, 0);
+	    secs   = strtoul(pt+1, NULL, 0);
+	    {
+		drmDMAReq      dma;
+		int            *indices, *sizes;
+
+		indices = alloca(sizeof(*indices) * count);
+		sizes   = alloca(sizeof(*sizes)   * count);
+		dma.context         = context;
+		dma.send_count      = 0;
+		dma.request_count   = count;
+		dma.request_size    = size;
+		dma.request_list    = indices;
+		dma.request_sizes   = sizes;
+		dma.flags           = DRM_DMA_WAIT;
+		if ((r = drmDMA(fd, &dma))) {
+		    drmError(r, argv[0]);
+		    return 1;
+		}
+		for (i = 0; i < dma.granted_count; i++) {
+		    printf("%5d: index = %d, size = %d\n",
+			   i, dma.request_list[i], dma.request_sizes[i]);
+		}
+		sleep(secs);
+		drmFreeBufs(fd, dma.granted_count, indices);
+	    }
+	    break;
+	case 'b':
+	    count   = strtoul(optarg, &pt, 0);
+	    size    = strtoul(pt+1, NULL, 0);
+	    if ((r = drmAddBufs(fd, count, size, 0, 0)) < 0) {
+		drmError(r, argv[0]);
+		return 1;
+	    }
+	    if (!(info = drmGetBufInfo(fd))) {
+		drmError(0, argv[0]);
+		return 1;
+	    }
+	    for (i = 0; i < info->count; i++) {
+		printf("%5d buffers of size %6d (low = %d, high = %d)\n",
+		       info->list[i].count,
+		       info->list[i].size,
+		       info->list[i].low_mark,
+		       info->list[i].high_mark);
+	    }
+	    if ((r = drmMarkBufs(fd, 0.50, 0.80))) {
+		drmError(r, argv[0]);
+		return 1;
+	    }
+	    if (!(info = drmGetBufInfo(fd))) {
+		drmError(0, argv[0]);
+		return 1;
+	    }
+	    for (i = 0; i < info->count; i++) {
+		printf("%5d buffers of size %6d (low = %d, high = %d)\n",
+		       info->list[i].count,
+		       info->list[i].size,
+		       info->list[i].low_mark,
+		       info->list[i].high_mark);
+	    }
+	    printf("===== /proc/drm/1/meminfo =====\n");
+	    sprintf(buf, "cat /proc/drm/1/meminfo");
+	    system(buf);
+#if 1
+	    if (!(bufs = drmMapBufs(fd))) {
+		drmError(0, argv[0]);
+		return 1;
+	    }
+	    printf("===============================\n");
+	    printf( "%d bufs\n", bufs->count);
+	    for (i = 0; i < bufs->count; i++) {
+		printf( "  %4d: %8d bytes at %p\n",
+			i,
+			bufs->list[i].total,
+			bufs->list[i].address);
+	    }
+	    printf("===== /proc/drm/1/vmainfo =====\n");
+	    sprintf(buf, "cat /proc/drm/1/vmainfo");
+	    system(buf);
+#endif
+	    break;
+	case 'f':
+	    offset  = strtoul(optarg, &pt, 0);
+	    size    = strtoul(pt+1, NULL, 0);
+	    handle  = 0;
+	    if ((r = drmAddMap(fd, offset, size,
+			       DRM_FRAME_BUFFER, 0, &handle))) {
+		drmError(r, argv[0]);
+		return 1;
+	    }
+	    printf("0x%08lx:0x%04lx added\n", offset, size);
+	    printf("===== /proc/drm/1/meminfo =====\n");
+	    sprintf(buf, "cat /proc/drm/1/meminfo");
+	    system(buf);
+	    break;
+	case 'r':
+	case 'R':
+	    offset  = strtoul(optarg, &pt, 0);
+	    size    = strtoul(pt+1, NULL, 0);
+	    handle  = 0;
+	    if ((r = drmAddMap(fd, offset, size,
+			       DRM_REGISTERS,
+			       c == 'R' ? DRM_READ_ONLY : 0,
+			       &handle))) {
+		drmError(r, argv[0]);
+		return 1;
+	    }
+	    printf("0x%08lx:0x%04lx added\n", offset, size);
+	    printf("===== /proc/drm/1/meminfo =====\n");
+	    sprintf(buf, "cat /proc/drm/1/meminfo");
+	    system(buf);
+	    break;
+	case 's':
+	    size = strtoul(optarg, &pt, 0);
+	    handle = 0;
+	    if ((r = drmAddMap(fd, 0, size,
+			       DRM_SHM, DRM_CONTAINS_LOCK,
+			       &handle))) {
+		drmError(r, argv[0]);
+		return 1;
+	    }
+	    printf("0x%04lx byte shm added at 0x%08lx\n", size, handle);
+	    sprintf(buf, "sysctl hw.graphics.0.vm");
+	    system(buf);
+	    break;
+	case 'P':
+	    offset  = strtoul(optarg, &pt, 0);
+	    size    = strtoul(pt+1, NULL, 0);
+	    address = NULL;
+	    if ((r = drmMap(fd, offset, size, &address))) {
+		drmError(r, argv[0]);
+		return 1;
+	    }
+	    printf("0x%08lx:0x%04lx mapped at %p for pid %d\n",
+		   offset, size, address, getpid());
+	    printf("===== hw.graphics.0.vma =====\n");
+	    sprintf(buf, "sysctl hw.graphics.0.vma");
+	    system(buf);
+	    mprotect((void *)offset, size, PROT_READ);
+	    printf("===== hw.graphics.0.vma =====\n");
+	    sprintf(buf, "sysctl hw.graphics.0.vma");
+	    system(buf);
+	    break;
+	case 'w':
+	case 'W':
+	    offset  = strtoul(optarg, &pt, 0);
+	    size    = strtoul(pt+1, NULL, 0);
+	    address = NULL;
+	    if ((r = drmMap(fd, offset, size, &address))) {
+		drmError(r, argv[0]);
+		return 1;
+	    }
+	    printf("0x%08lx:0x%04lx mapped at %p for pid %d\n",
+		   offset, size, address, getpid());
+	    printf("===== /proc/%d/maps =====\n", getpid());
+	    sprintf(buf, "cat /proc/%d/maps", getpid());
+	    system(buf);
+	    printf("===== /proc/drm/1/meminfo =====\n");
+	    sprintf(buf, "cat /proc/drm/1/meminfo");
+	    system(buf);
+	    printf("===== /proc/drm/1/vmainfo =====\n");
+	    sprintf(buf, "cat /proc/drm/1/vmainfo");
+	    system(buf);
+	    printf("===== READING =====\n");
+	    for (i = 0; i < 0x10; i++)
+		printf("%02x ", (unsigned int)((unsigned char *)address)[i]);
+	    printf("\n");
+	    if (c == 'w') {
+		printf("===== WRITING =====\n");
+		for (i = 0; i < size; i+=2) {
+		    ((char *)address)[i]   = i & 0xff;
+		    ((char *)address)[i+1] = i & 0xff;
+		}
+	    }
+	    printf("===== READING =====\n");
+	    for (i = 0; i < 0x10; i++)
+		printf("%02x ", (unsigned int)((unsigned char *)address)[i]);
+	    printf("\n");
+	    printf("===== /proc/drm/1/vmainfo =====\n");
+	    sprintf(buf, "cat /proc/drm/1/vmainfo");
+	    system(buf);
+	    break;
+	case 'L':
+	    context = strtoul(optarg, &pt, 0);
+	    offset  = strtoul(pt+1, &pt, 0);
+	    size    = strtoul(pt+1, &pt, 0);
+	    loops   = strtoul(pt+1, NULL, 0);
+	    address = NULL;
+	    if ((r = drmMap(fd, offset, size, &address))) {
+		drmError(r, argv[0]);
+		return 1;
+	    }
+	    lock       = address;
+#if 1
+	    {
+		int            counter = 0;
+		struct timeval loop_start, loop_end;
+		struct timeval lock_start, lock_end;
+		double         wt;
+#define HISTOSIZE 9
+		int            histo[HISTOSIZE];
+		int            output = 0;
+		int            fast   = 0;
+
+		if (loops < 0) {
+		    loops = -loops;
+		    ++output;
+		}
+
+		for (i = 0; i < HISTOSIZE; i++) histo[i] = 0;
+
+		gettimeofday(&loop_start, NULL);
+		for (i = 0; i < loops; i++) {
+		    gettimeofday(&lock_start, NULL);
+		    DRM_LIGHT_LOCK_COUNT(fd,lock,context,fast);
+		    gettimeofday(&lock_end, NULL);
+		    DRM_UNLOCK(fd,lock,context);
+		    ++counter;
+		    wt = usec(&lock_end, &lock_start);
+		    if      (wt <=      2.5) ++histo[8];
+		    if      (wt <       5.0) ++histo[0];
+		    else if (wt <      50.0) ++histo[1];
+		    else if (wt <     500.0) ++histo[2];
+		    else if (wt <    5000.0) ++histo[3];
+		    else if (wt <   50000.0) ++histo[4];
+		    else if (wt <  500000.0) ++histo[5];
+		    else if (wt < 5000000.0) ++histo[6];
+		    else                     ++histo[7];
+		    if (output) printf( "%.2f uSec, %d fast\n", wt, fast);
+		}
+		gettimeofday(&loop_end, NULL);
+		printf( "Average wait time = %.2f usec, %d fast\n",
+			usec(&loop_end, &loop_start) /  counter, fast);
+		printf( "%9d <=     2.5 uS\n", histo[8]);
+		printf( "%9d <        5 uS\n", histo[0]);
+		printf( "%9d <       50 uS\n", histo[1]);
+		printf( "%9d <      500 uS\n", histo[2]);
+		printf( "%9d <     5000 uS\n", histo[3]);
+		printf( "%9d <    50000 uS\n", histo[4]);
+		printf( "%9d <   500000 uS\n", histo[5]);
+		printf( "%9d <  5000000 uS\n", histo[6]);
+		printf( "%9d >= 5000000 uS\n", histo[7]);
+	    }
+#else
+	    printf( "before lock: 0x%08x\n", lock->lock);
+	    printf( "lock: 0x%08x\n", lock->lock);
+	    sleep(5);
+	    printf( "unlock: 0x%08x\n", lock->lock);
+#endif
+	    break;
+	default:
+	    fprintf( stderr, "Usage: drmstat [options]\n" );
+	    return 1;
+	}
+
+    return r; 
+}
diff --git a/bsd/drm/fops.c b/bsd/drm/fops.c
new file mode 100644
index 00000000..837fc7db
--- /dev/null
+++ b/bsd/drm/fops.c
@@ -0,0 +1,260 @@
+/* fops.c -- File operations for DRM -*- c -*-
+ * Created: Mon Jan  4 08:58:31 1999 by faith@precisioninsight.com
+ * Revised: Tue Oct 12 08:48:59 1999 by faith@precisioninsight.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * 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
+ * PRECISION INSIGHT 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/fops.c,v 1.3 1999/08/20 15:36:45 faith Exp $
+ * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/fops.c,v 1.1 1999/09/25 14:37:59 dawes Exp $
+ *
+ */
+
+#define __NO_VERSION__
+#include "drmP.h"
+#include <sys/signalvar.h>
+#include <sys/poll.h>
+
+drm_file_t *drm_find_file_by_proc(drm_device_t *dev, struct proc *p)
+{
+	uid_t uid = p->p_cred->p_svuid;
+	pid_t pid = p->p_pid;
+	drm_file_t *priv;
+
+	TAILQ_FOREACH(priv, &dev->files, link)
+		if (priv->pid == pid && priv->uid == uid)
+			return priv;
+	return NULL;
+}
+
+
+/* drm_open is called whenever a process opens /dev/drm. */
+
+int drm_open_helper(dev_t kdev, int flags, int fmt, struct proc *p,
+		    drm_device_t *dev)
+{
+	int	     m = minor(kdev);
+	drm_file_t   *priv;
+
+	if (flags & O_EXCL)
+		return EBUSY; /* No exclusive opens */
+
+	dev->flags = flags;
+
+	DRM_DEBUG("pid = %d, device = %p, minor = %d\n",
+		  p->p_pid, dev->device, m);
+
+	priv = drm_find_file_by_proc(dev, p);
+	if (priv) {
+		priv->refs++;
+	} else {
+		priv		    = drm_alloc(sizeof(*priv), DRM_MEM_FILES);
+		memset(priv, 0, sizeof(*priv));
+		priv->uid	    = p->p_cred->p_svuid;
+		priv->pid	    = p->p_pid;
+		priv->refs          = 1;
+		priv->minor	    = m;
+		priv->devXX	    = dev;
+		priv->ioctl_count   = 0;
+		priv->authenticated = !suser(p);
+		lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, p);
+		TAILQ_INSERT_TAIL(&dev->files, priv, link);
+		lockmgr(&dev->dev_lock, LK_RELEASE, 0, p);
+	}
+
+	kdev->si_drv1 = dev;
+	
+	return 0;
+}
+
+int drm_write(dev_t kdev, struct uio *uio, int ioflag)
+{
+	struct proc   *p      = curproc;
+	drm_device_t  *dev    = kdev->si_drv1;
+
+	DRM_DEBUG("pid = %d, device = %p, open_count = %d\n",
+		  p->p_pid, dev->device, dev->open_count);
+	return 0;
+}
+
+/* drm_release is called whenever a process closes /dev/drm*. */
+
+int drm_close(dev_t kdev, int fflag, int devtype, struct proc *p)
+{
+	drm_device_t  *dev  = kdev->si_drv1;
+	drm_file_t    *priv;
+
+	DRM_DEBUG("pid = %d, device = %p, open_count = %d\n",
+		  p->p_pid, dev->device, dev->open_count);
+
+	priv = drm_find_file_by_proc(dev, p);
+	if (!priv) {
+		DRM_DEBUG("can't find authenticator\n");
+		return EINVAL;
+	}
+
+	if (dev->lock.hw_lock && _DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)
+	    && dev->lock.pid == p->p_pid) {
+		DRM_ERROR("Process %d dead, freeing lock for context %d\n",
+			  p->p_pid,
+			  _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock));
+		drm_lock_free(dev,
+			      &dev->lock.hw_lock->lock,
+			      _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock));
+		
+				/* FIXME: may require heavy-handed reset of
+                                   hardware at this point, possibly
+                                   processed via a callback to the X
+                                   server. */
+	}
+	drm_reclaim_buffers(dev, priv->pid);
+
+	funsetown(dev->buf_sigio);
+
+	lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, p);
+	priv = drm_find_file_by_proc(dev, p);
+	if (priv) {
+		priv->refs--;
+		if (!priv->refs) {
+			TAILQ_REMOVE(&dev->files, priv, link);
+			drm_free(priv, sizeof(*priv), DRM_MEM_FILES);
+		}
+	}
+	lockmgr(&dev->dev_lock, LK_RELEASE, 0, p);
+	
+	return 0;
+}
+
+/* The drm_read and drm_write_string code (especially that which manages
+   the circular buffer), is based on Alessandro Rubini's LINUX DEVICE
+   DRIVERS (Cambridge: O'Reilly, 1998), pages 111-113. */
+
+ssize_t drm_read(dev_t kdev, struct uio *uio, int ioflag)
+{
+	drm_device_t  *dev    = kdev->si_drv1;
+	int	      left;
+	int	      avail;
+	int	      send;
+	int	      cur;
+	int	      error = 0;
+
+	DRM_DEBUG("%p, %p\n", dev->buf_rp, dev->buf_wp);
+	
+	while (dev->buf_rp == dev->buf_wp) {
+		DRM_DEBUG("  sleeping\n");
+		if (dev->flags & FASYNC) {
+			return EWOULDBLOCK;
+		}
+		error = tsleep(&dev->buf_rp, PZERO|PCATCH, "drmrd", 0);
+		if (error) {
+			DRM_DEBUG("  interrupted\n");
+			return error;
+		}
+		DRM_DEBUG("  awake\n");
+	}
+
+	left  = (dev->buf_rp + DRM_BSZ - dev->buf_wp) % DRM_BSZ;
+	avail = DRM_BSZ - left;
+	send  = DRM_MIN(avail, uio->uio_resid);
+
+	while (send) {
+		if (dev->buf_wp > dev->buf_rp) {
+			cur = DRM_MIN(send, dev->buf_wp - dev->buf_rp);
+		} else {
+			cur = DRM_MIN(send, dev->buf_end - dev->buf_rp);
+		}
+		error = uiomove(dev->buf_rp, cur, uio);
+		if (error)
+			break;
+		dev->buf_rp += cur;
+		if (dev->buf_rp == dev->buf_end) dev->buf_rp = dev->buf;
+		send -= cur;
+	}
+	
+	wakeup(&dev->buf_wp);
+
+	return error;
+}
+
+int drm_write_string(drm_device_t *dev, const char *s)
+{
+	int left   = (dev->buf_rp + DRM_BSZ - dev->buf_wp) % DRM_BSZ;
+	int send   = strlen(s);
+	int count;
+
+	DRM_DEBUG("%d left, %d to send (%p, %p)\n",
+		  left, send, dev->buf_rp, dev->buf_wp);
+	
+	if (left == 1 || dev->buf_wp != dev->buf_rp) {
+		DRM_ERROR("Buffer not empty (%d left, wp = %p, rp = %p)\n",
+			  left,
+			  dev->buf_wp,
+			  dev->buf_rp);
+	}
+
+	while (send) {
+		if (dev->buf_wp >= dev->buf_rp) {
+			count = DRM_MIN(send, dev->buf_end - dev->buf_wp);
+			if (count == left) --count; /* Leave a hole */
+		} else {
+			count = DRM_MIN(send, dev->buf_rp - dev->buf_wp - 1);
+		}
+		strncpy(dev->buf_wp, s, count);
+		dev->buf_wp += count;
+		if (dev->buf_wp == dev->buf_end) dev->buf_wp = dev->buf;
+		send -= count;
+	}
+
+	if (dev->buf_selecting) {
+		dev->buf_selecting = 0;
+		selwakeup(&dev->buf_sel);
+	}
+		
+	DRM_DEBUG("dev->buf_sigio=%p\n", dev->buf_sigio);
+	if (dev->buf_sigio) {
+		DRM_DEBUG("dev->buf_sigio->sio_pgid=%d\n", dev->buf_sigio->sio_pgid);
+		pgsigio(dev->buf_sigio, SIGIO, 0);
+	}
+
+	DRM_DEBUG("waking\n");
+	wakeup(&dev->buf_rp);
+	return 0;
+}
+
+int drm_poll(dev_t kdev, int events, struct proc *p)
+{
+	drm_device_t  *dev    = kdev->si_drv1;
+	int           s;
+	int	      revents = 0;
+
+	s = spldrm();
+	if (events & (POLLIN | POLLRDNORM)) {
+		int left  = (dev->buf_rp + DRM_BSZ - dev->buf_wp) % DRM_BSZ;
+		if (left > 0)
+			revents |= events & (POLLIN | POLLRDNORM);
+		else
+			selrecord(p, &dev->buf_sel);
+	}
+	splx(s);
+
+	return revents;
+}
diff --git a/bsd/drm/init.c b/bsd/drm/init.c
new file mode 100644
index 00000000..44e9be99
--- /dev/null
+++ b/bsd/drm/init.c
@@ -0,0 +1,101 @@
+/* init.c -- Setup/Cleanup for DRM -*- c -*-
+ * Created: Mon Jan  4 08:58:31 1999 by faith@precisioninsight.com
+ * Revised: Fri Aug 20 09:27:02 1999 by faith@precisioninsight.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * 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
+ * PRECISION INSIGHT 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/init.c,v 1.3 1999/08/20 15:07:01 faith Exp $
+ * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/init.c,v 1.1 1999/09/25 14:38:01 dawes Exp $
+ *
+ */
+
+#define __NO_VERSION__
+#include "drmP.h"
+
+MODULE_VERSION(drm, 1);
+
+int			      drm_flags		= 0;
+
+/* drm_parse_option parses a single option.  See description for
+   drm_parse_drm for details. */
+
+static void drm_parse_option(char *s)
+{
+	char *c, *r;
+	
+	DRM_DEBUG("\"%s\"\n", s);
+	if (!s || !*s) return;
+	for (c = s; *c && *c != ':'; c++); /* find : or \0 */
+	if (*c) r = c + 1; else r = NULL;  /* remember remainder */
+	*c = '\0';			   /* terminate */
+	if (!strcmp(s, "noctx")) {
+		drm_flags |= DRM_FLAG_NOCTX;
+		DRM_INFO("Server-mediated context switching OFF\n");
+		return;
+	}
+	if (!strcmp(s, "debug")) {
+		drm_flags |= DRM_FLAG_DEBUG;
+		DRM_INFO("Debug messages ON\n");
+		return;
+	}
+	DRM_ERROR("\"%s\" is not a valid option\n", s);
+	return;
+}
+
+/* drm_parse_options parse the insmod "drm=" options, or the command-line
+ * options passed to the kernel via LILO.  The grammar of the format is as
+ * follows:
+ *
+ * drm		::= 'drm=' option_list
+ * option_list	::= option [ ';' option_list ]
+ * option	::= 'device:' major
+ *		|   'debug' 
+ *		|   'noctx'
+ * major	::= INTEGER
+ *
+ * Note that 's' contains option_list without the 'drm=' part.
+ *
+ * device=major,minor specifies the device number used for /dev/drm
+ *	  if major == 0 then the misc device is used
+ *	  if major == 0 and minor == 0 then dynamic misc allocation is used
+ * debug=on specifies that debugging messages will be printk'd
+ * debug=trace specifies that each function call will be logged via printk
+ * debug=off turns off all debugging options
+ *
+ */
+
+void drm_parse_options(char *s)
+{
+	char *h, *t, *n;
+	
+	DRM_DEBUG("\"%s\"\n", s ?: "");
+	if (!s || !*s) return;
+
+	for (h = t = n = s; h && *h; h = n) {
+		for (; *t && *t != ';'; t++);	       /* find ; or \0 */
+		if (*t) n = t + 1; else n = NULL;      /* remember next */
+		*t = '\0';			       /* terminate */
+		drm_parse_option(h);		       /* parse */
+	}
+}
+
diff --git a/bsd/drm/ioctl.c b/bsd/drm/ioctl.c
new file mode 100644
index 00000000..55bdeeda
--- /dev/null
+++ b/bsd/drm/ioctl.c
@@ -0,0 +1,120 @@
+/* ioctl.c -- IOCTL processing for DRM -*- c -*-
+ * Created: Fri Jan  8 09:01:26 1999 by faith@precisioninsight.com
+ * Revised: Fri Aug 20 09:27:02 1999 by faith@precisioninsight.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * 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
+ * PRECISION INSIGHT 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/ioctl.c,v 1.3 1999/08/30 13:05:00 faith Exp $
+ * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/ioctl.c,v 1.1 1999/09/25 14:38:01 dawes Exp $
+ *
+ */
+
+#define __NO_VERSION__
+#include "drmP.h"
+#include <sys/bus.h>
+#include <pci/pcivar.h>
+
+int
+drm_irq_busid(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
+{
+	drm_irq_busid_t id;
+	devclass_t pci;
+	device_t bus, dev;
+	device_t *kids;
+	int error, i, num_kids;
+
+	id = *(drm_irq_busid_t *) data;
+	pci = devclass_find("pci");
+	if (!pci)
+		return ENOENT;
+	bus = devclass_get_device(pci, id.busnum);
+	if (!bus)
+		return ENOENT;
+	error = device_get_children(bus, &kids, &num_kids);
+	if (error)
+		return error;
+
+	dev = 0;
+	for (i = 0; i < num_kids; i++) {
+		dev = kids[i];
+		if (pci_get_slot(dev) == id.devnum
+		    && pci_get_function(dev) == id.funcnum)
+			break;
+	}
+
+	free(kids, M_TEMP);
+
+	if (i != num_kids)
+		id.irq = pci_get_irq(dev);
+	else
+		id.irq = 0;
+
+	DRM_DEBUG("%d:%d:%d => IRQ %d\n",
+		  id.busnum, id.devnum, id.funcnum, id.irq);
+	*(drm_irq_busid_t *) data = id;
+
+	return 0;
+}
+
+int
+drm_getunique(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
+{
+	drm_device_t	 *dev	 = kdev->si_drv1;
+	drm_unique_t	 u;
+	int		 error;
+
+	u = *(drm_unique_t *) data;
+	if (u.unique_len >= dev->unique_len) {
+		error = copyout(dev->unique, u.unique, dev->unique_len);
+		if (error)
+			return error;
+	}
+	u.unique_len = dev->unique_len;
+	*(drm_unique_t *) data = u;
+	return 0;
+}
+
+int
+drm_setunique(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
+{
+	drm_device_t	 *dev	 = kdev->si_drv1;
+	drm_unique_t	 u;
+	int		 error;
+
+	if (dev->unique_len || dev->unique) return EBUSY;
+
+	u = *(drm_unique_t *) data;
+	
+	dev->unique_len = u.unique_len;
+	dev->unique	= drm_alloc(u.unique_len + 1, DRM_MEM_DRIVER);
+	error = copyin(u.unique, dev->unique, dev->unique_len);
+	if (error)
+		return error;
+	dev->unique[dev->unique_len] = '\0';
+
+	dev->devname = drm_alloc(strlen(dev->name) + strlen(dev->unique) + 2,
+				 DRM_MEM_DRIVER);
+	sprintf(dev->devname, "%s@%s", dev->name, dev->unique);
+
+	return 0;
+}
diff --git a/bsd/drm/lists.c b/bsd/drm/lists.c
new file mode 100644
index 00000000..9f9b5f7a
--- /dev/null
+++ b/bsd/drm/lists.c
@@ -0,0 +1,258 @@
+/* lists.c -- Buffer list handling routines -*- c -*-
+ * Created: Mon Apr 19 20:54:22 1999 by faith@precisioninsight.com
+ * Revised: Fri Aug 20 09:27:01 1999 by faith@precisioninsight.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * 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
+ * PRECISION INSIGHT 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/lists.c,v 1.3 1999/08/20 15:07:02 faith Exp $
+ * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/lists.c,v 1.1 1999/09/25 14:38:01 dawes Exp $
+ *
+ */
+
+#define __NO_VERSION__
+#include "drmP.h"
+
+int drm_waitlist_create(drm_waitlist_t *bl, int count)
+{
+	DRM_DEBUG("%d\n", count);
+	if (bl->count) return EINVAL;
+	
+	bl->count      = count;
+	bl->bufs       = drm_alloc((bl->count + 2) * sizeof(*bl->bufs),
+				   DRM_MEM_BUFLISTS);
+	bl->rp	       = bl->bufs;
+	bl->wp	       = bl->bufs;
+	bl->end	       = &bl->bufs[bl->count+1];
+	simple_lock_init(&bl->write_lock);
+	simple_lock_init(&bl->read_lock);
+	return 0;
+}
+
+int drm_waitlist_destroy(drm_waitlist_t *bl)
+{
+	DRM_DEBUG("\n");
+	if (bl->rp != bl->wp) return EINVAL;
+	if (bl->bufs) drm_free(bl->bufs,
+			       (bl->count + 2) * sizeof(*bl->bufs),
+			       DRM_MEM_BUFLISTS);
+	bl->count = 0;
+	bl->bufs  = NULL;
+	bl->rp	  = NULL;
+	bl->wp	  = NULL;
+	bl->end	  = NULL;
+	return 0;
+}
+
+int drm_waitlist_put(drm_waitlist_t *bl, drm_buf_t *buf)
+{							
+	int	      left;
+	int	      s;
+
+	left = DRM_LEFTCOUNT(bl);
+	DRM_DEBUG("put %d (%d left, rp = %p, wp = %p)\n",
+		  buf->idx, left, bl->rp, bl->wp);
+	if (!left) {
+		DRM_ERROR("Overflow while adding buffer %d from pid %d\n",
+			  buf->idx, buf->pid);
+		return EINVAL;
+	}
+#if DRM_DMA_HISTOGRAM
+	getnanotime(&buf->time_queued);
+#endif
+	buf->list	 = DRM_LIST_WAIT;
+	
+	simple_lock(&bl->write_lock);
+	s = spldrm();
+	*bl->wp = buf;
+	if (++bl->wp >= bl->end) bl->wp = bl->bufs;
+	splx(s);
+	simple_unlock(&bl->write_lock);
+	
+	return 0;
+}
+
+drm_buf_t *drm_waitlist_get(drm_waitlist_t *bl)
+{
+	drm_buf_t     *buf;
+	int	       s;
+
+	simple_lock(&bl->read_lock);
+	s = spldrm();
+	buf = *bl->rp;
+	if (bl->rp == bl->wp) {
+		splx(s);
+		simple_unlock(&bl->read_lock);
+		return NULL;
+	}				     
+	if (++bl->rp >= bl->end) bl->rp = bl->bufs;
+	splx(s);
+	simple_unlock(&bl->read_lock);
+	
+	DRM_DEBUG("get %d\n", buf->idx);
+	return buf;
+}
+
+int drm_freelist_create(drm_freelist_t *bl, int count)
+{
+	DRM_DEBUG("\n");
+	atomic_set(&bl->count, 0);
+	bl->next      = NULL;
+	bl->waiting   = 0;
+	bl->low_mark  = 0;
+	bl->high_mark = 0;
+	atomic_set(&bl->wfh,   0);
+	++bl->initialized;
+	return 0;
+}
+
+int drm_freelist_destroy(drm_freelist_t *bl)
+{
+	DRM_DEBUG("\n");
+	atomic_set(&bl->count, 0);
+	bl->next = NULL;
+	return 0;
+}
+
+int drm_freelist_put(drm_device_t *dev, drm_freelist_t *bl, drm_buf_t *buf)
+{
+	unsigned int	 old;
+	unsigned int	 new;
+	char		 failed;
+	int		 count = 0;
+	drm_device_dma_t *dma = dev->dma;
+
+	if (!dma) {
+		DRM_ERROR("No DMA support\n");
+		return 1;
+	}
+
+	if (buf->waiting || buf->pending || buf->list == DRM_LIST_FREE) {
+		DRM_ERROR("Freed buffer %d: w%d, p%d, l%d\n",
+			  buf->idx, buf->waiting, buf->pending, buf->list);
+	}
+	DRM_DEBUG("%d, count = %d, wfh = %d, w%d, p%d\n",
+		  buf->idx, atomic_read(&bl->count), atomic_read(&bl->wfh),
+		  buf->waiting, buf->pending);
+	if (!bl) return 1;
+#if DRM_DMA_HISTOGRAM
+	getnanotime(&buf->time_freed);
+	drm_histogram_compute(dev, buf);
+#endif
+	buf->list	= DRM_LIST_FREE;
+	do {
+		old	  = (unsigned long)bl->next;
+		buf->next = (void *)old;
+		new	  = (unsigned long)buf;
+		_DRM_CAS(&bl->next, old, new, failed);
+		if (++count > DRM_LOOPING_LIMIT) {
+			DRM_ERROR("Looping\n");
+			return 1;
+		}
+	} while (failed);
+	atomic_inc(&bl->count);
+	if (atomic_read(&bl->count) > dma->buf_count) {
+		DRM_ERROR("%d of %d buffers free after addition of %d\n",
+			  atomic_read(&bl->count), dma->buf_count, buf->idx);
+		return 1;
+	}
+				/* Check for high water mark */
+	if (atomic_read(&bl->wfh) && atomic_read(&bl->count)>=bl->high_mark) {
+		atomic_set(&bl->wfh, 0);
+		if (bl->waiting)
+			wakeup(&bl->waiting);
+	}
+	return 0;
+}
+
+static drm_buf_t *drm_freelist_try(drm_freelist_t *bl)
+{
+	unsigned int	  old;
+	unsigned int	  new;
+	char		  failed;
+	drm_buf_t	  *buf;
+	int		  count = 0;
+
+	if (!bl) return NULL;
+	
+				/* Get buffer */
+	do {
+		old = (unsigned int)bl->next;
+		if (!old) {
+			return NULL;
+		}
+		new = (unsigned long)bl->next->next;
+		_DRM_CAS(&bl->next, old, new, failed);
+		if (++count > DRM_LOOPING_LIMIT) {
+			DRM_ERROR("Looping\n");
+			return NULL;
+		}
+	} while (failed);
+	atomic_dec(&bl->count);
+	
+	buf	  = (drm_buf_t *)old;
+	buf->next = NULL;
+	buf->list = DRM_LIST_NONE;
+	DRM_DEBUG("%d, count = %d, wfh = %d, w%d, p%d\n",
+		  buf->idx, atomic_read(&bl->count), atomic_read(&bl->wfh),
+		  buf->waiting, buf->pending);
+	if (buf->waiting || buf->pending) {
+		DRM_ERROR("Free buffer %d: w%d, p%d, l%d\n",
+			  buf->idx, buf->waiting, buf->pending, buf->list);
+	}
+	
+	return buf;
+}
+
+drm_buf_t *drm_freelist_get(drm_freelist_t *bl, int block)
+{
+	drm_buf_t	  *buf	= NULL;
+	int		   error;
+
+	if (!bl || !bl->initialized) return NULL;
+	
+				/* Check for low water mark */
+	if (atomic_read(&bl->count) <= bl->low_mark) /* Became low */
+		atomic_set(&bl->wfh, 1);
+	if (atomic_read(&bl->wfh)) {
+		DRM_DEBUG("Block = %d, count = %d, wfh = %d\n",
+			  block, atomic_read(&bl->count),
+			  atomic_read(&bl->wfh));
+		if (block) {
+			atomic_inc(&bl->waiting);
+			for (;;) {
+				if (!atomic_read(&bl->wfh)
+				    && (buf = drm_freelist_try(bl))) break;
+				error = tsleep(&bl->waiting, PZERO|PCATCH,
+					       "drmfg", 0);
+				if (error)
+					break;
+			}
+			atomic_dec(&bl->waiting);
+		}
+		return buf;
+	}
+		
+	DRM_DEBUG("Count = %d, wfh = %d\n",
+		  atomic_read(&bl->count), atomic_read(&bl->wfh));
+	return drm_freelist_try(bl);
+}
diff --git a/bsd/drm/lock.c b/bsd/drm/lock.c
new file mode 100644
index 00000000..cd14a882
--- /dev/null
+++ b/bsd/drm/lock.c
@@ -0,0 +1,220 @@
+/* lock.c -- IOCTLs for locking -*- c -*-
+ * Created: Tue Feb  2 08:37:54 1999 by faith@precisioninsight.com
+ * Revised: Tue Oct 12 08:51:06 1999 by faith@precisioninsight.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * 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
+ * PRECISION INSIGHT 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/lock.c,v 1.5 1999/08/30 13:05:00 faith Exp $
+ * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/lock.c,v 1.1 1999/09/25 14:38:01 dawes Exp $
+ *
+ */
+
+#define __NO_VERSION__
+#include "drmP.h"
+
+int
+drm_block(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
+{
+	DRM_DEBUG("\n");
+	return 0;
+}
+
+int
+drm_unblock(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
+{
+	DRM_DEBUG("\n");
+	return 0;
+}
+
+int drm_lock_take(__volatile__ unsigned int *lock, unsigned int context)
+{
+	unsigned int old;
+	unsigned int new;
+	char	     failed;
+
+	DRM_DEBUG("%d attempts\n", context);
+	do {
+		old = *lock;
+		if (old & _DRM_LOCK_HELD) new = old | _DRM_LOCK_CONT;
+		else			  new = context | _DRM_LOCK_HELD;
+		_DRM_CAS(lock, old, new, failed);
+	} while (failed);
+	if (_DRM_LOCKING_CONTEXT(old) == context) {
+		if (old & _DRM_LOCK_HELD) {
+			if (context != DRM_KERNEL_CONTEXT) {
+				DRM_ERROR("%d holds heavyweight lock\n",
+					  context);
+			}
+			return 0;
+		}
+	}
+	if (new == (context | _DRM_LOCK_HELD)) {
+				/* Have lock */
+		DRM_DEBUG("%d\n", context);
+		return 1;
+	}
+	DRM_DEBUG("%d unable to get lock held by %d\n",
+		  context, _DRM_LOCKING_CONTEXT(old));
+	return 0;
+}
+
+/* This takes a lock forcibly and hands it to context.	Should ONLY be used
+   inside *_unlock to give lock to kernel before calling *_dma_schedule. */
+int drm_lock_transfer(drm_device_t *dev,
+		      __volatile__ unsigned int *lock, unsigned int context)
+{
+	unsigned int old;
+	unsigned int new;
+	char	     failed;
+
+	dev->lock.pid = 0;
+	do {
+		old = *lock;
+		new = context | _DRM_LOCK_HELD;
+		_DRM_CAS(lock, old, new, failed);
+	} while (failed);
+	DRM_DEBUG("%d => %d\n", _DRM_LOCKING_CONTEXT(old), context);
+	return 1;
+}
+
+int drm_lock_free(drm_device_t *dev,
+		  __volatile__ unsigned int *lock, unsigned int context)
+{
+	unsigned int old;
+	unsigned int new;
+	char	     failed;
+	pid_t        pid = dev->lock.pid;
+
+	DRM_DEBUG("%d\n", context);
+	dev->lock.pid = 0;
+	do {
+		old = *lock;
+		new = 0;
+		_DRM_CAS(lock, old, new, failed);
+	} while (failed);
+	if (_DRM_LOCK_IS_HELD(old) && _DRM_LOCKING_CONTEXT(old) != context) {
+		DRM_ERROR("%d freed heavyweight lock held by %d (pid %d)\n",
+			  context,
+			  _DRM_LOCKING_CONTEXT(old),
+			  pid);
+		return 1;
+	}
+	wakeup(&dev->lock.lock_queue);
+	return 0;
+}
+
+static int drm_flush_queue(drm_device_t *dev, int context)
+{
+	int		  ret	= 0;
+	int		  error;
+	drm_queue_t	  *q	= dev->queuelist[context];
+	
+	DRM_DEBUG("\n");
+	
+	atomic_inc(&q->use_count);
+	if (atomic_read(&q->use_count) > 1) {
+		atomic_inc(&q->block_write);
+		atomic_inc(&q->block_count);
+		error = tsleep(&q->flush_queue, PCATCH|PZERO, "drmfq", 0);
+		if (error)
+			return error;
+		atomic_dec(&q->block_count);
+	}
+	atomic_dec(&q->use_count);
+	atomic_inc(&q->total_flushed);
+		
+				/* NOTE: block_write is still incremented!
+				   Use drm_flush_unlock_queue to decrement. */
+	return ret;
+}
+
+static int drm_flush_unblock_queue(drm_device_t *dev, int context)
+{
+	drm_queue_t	  *q	= dev->queuelist[context];
+	
+	DRM_DEBUG("\n");
+	
+	atomic_inc(&q->use_count);
+	if (atomic_read(&q->use_count) > 1) {
+		if (atomic_read(&q->block_write)) {
+			atomic_dec(&q->block_write);
+			wakeup(&q->write_queue);
+		}
+	}
+	atomic_dec(&q->use_count);
+	return 0;
+}
+
+int drm_flush_block_and_flush(drm_device_t *dev, int context,
+			      drm_lock_flags_t flags)
+{
+	int ret = 0;
+	int i;
+	
+	DRM_DEBUG("\n");
+	
+	if (flags & _DRM_LOCK_FLUSH) {
+		ret = drm_flush_queue(dev, DRM_KERNEL_CONTEXT);
+		if (!ret) ret = drm_flush_queue(dev, context);
+	}
+	if (flags & _DRM_LOCK_FLUSH_ALL) {
+		for (i = 0; !ret && i < dev->queue_count; i++) {
+			ret = drm_flush_queue(dev, i);
+		}
+	}
+	return ret;
+}
+
+int drm_flush_unblock(drm_device_t *dev, int context, drm_lock_flags_t flags)
+{
+	int ret = 0;
+	int i;
+	
+	DRM_DEBUG("\n");
+	
+	if (flags & _DRM_LOCK_FLUSH) {
+		ret = drm_flush_unblock_queue(dev, DRM_KERNEL_CONTEXT);
+		if (!ret) ret = drm_flush_unblock_queue(dev, context);
+	}
+	if (flags & _DRM_LOCK_FLUSH_ALL) {
+		for (i = 0; !ret && i < dev->queue_count; i++) {
+			ret = drm_flush_unblock_queue(dev, i);
+		}
+	}
+		
+	return ret;
+}
+
+int drm_finish(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
+{
+	drm_device_t	  *dev	  = kdev->si_drv1;
+	int		  ret	  = 0;
+	drm_lock_t	  lock;
+
+	DRM_DEBUG("\n");
+
+	lock = *(drm_lock_t *) data;
+	ret = drm_flush_block_and_flush(dev, lock.context, lock.flags);
+	drm_flush_unblock(dev, lock.context, lock.flags);
+	return ret;
+}
diff --git a/bsd/drm/memory.c b/bsd/drm/memory.c
new file mode 100644
index 00000000..a8a936df
--- /dev/null
+++ b/bsd/drm/memory.c
@@ -0,0 +1,458 @@
+/* memory.c -- Memory management wrappers for DRM -*- c -*-
+ * Created: Thu Feb  4 14:00:34 1999 by faith@precisioninsight.com
+ * Revised: Fri Aug 20 13:04:33 1999 by faith@precisioninsight.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * 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
+ * PRECISION INSIGHT 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/memory.c,v 1.4 1999/08/20 20:00:53 faith Exp $
+ * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/memory.c,v 1.1 1999/09/25 14:38:02 dawes Exp $
+ *
+ */
+
+#define __NO_VERSION__
+#include "drmP.h"
+
+#include <vm/vm.h>
+#include <vm/pmap.h>
+#ifdef DRM_AGP
+#include <sys/agpio.h>
+#endif
+
+MALLOC_DEFINE(M_DRM, "drm", "DRM Data Structures");
+
+typedef struct drm_mem_stats {
+	const char	  *name;
+	int		  succeed_count;
+	int		  free_count;
+	int		  fail_count;
+	unsigned long	  bytes_allocated;
+	unsigned long	  bytes_freed;
+} drm_mem_stats_t;
+
+#ifdef SMP
+static struct simplelock  drm_mem_lock;
+#endif
+static unsigned long	  drm_ram_available = 0;
+static unsigned long	  drm_ram_used	    = 0;
+static drm_mem_stats_t	  drm_mem_stats[]   = {
+	[DRM_MEM_DMA]	   = { "dmabufs"  },
+	[DRM_MEM_SAREA]	   = { "sareas"	  },
+	[DRM_MEM_DRIVER]   = { "driver"	  },
+	[DRM_MEM_MAGIC]	   = { "magic"	  },
+	[DRM_MEM_IOCTLS]   = { "ioctltab" },
+	[DRM_MEM_MAPS]	   = { "maplist"  },
+	[DRM_MEM_VMAS]	   = { "vmalist"  },
+	[DRM_MEM_BUFS]	   = { "buflist"  },
+	[DRM_MEM_SEGS]	   = { "seglist"  },
+	[DRM_MEM_PAGES]	   = { "pagelist" },
+	[DRM_MEM_FILES]	   = { "files"	  },
+	[DRM_MEM_QUEUES]   = { "queues"	  },
+	[DRM_MEM_CMDS]	   = { "commands" },
+	[DRM_MEM_MAPPINGS] = { "mappings" },
+	[DRM_MEM_BUFLISTS] = { "buflists" },
+	[DRM_MEM_AGPLISTS]  = { "agplist"  },
+	[DRM_MEM_TOTALAGP]  = { "totalagp" },
+	[DRM_MEM_BOUNDAGP]  = { "boundagp" },
+	[DRM_MEM_CTXBITMAP] = { "ctxbitmap"},
+	{ NULL, 0, }		/* Last entry must be null */
+};
+
+void drm_mem_init(void)
+{
+	drm_mem_stats_t *mem;
+	
+	for (mem = drm_mem_stats; mem->name; ++mem) {
+		mem->succeed_count   = 0;
+		mem->free_count	     = 0;
+		mem->fail_count	     = 0;
+		mem->bytes_allocated = 0;
+		mem->bytes_freed     = 0;
+	}
+	
+	drm_ram_available = 0; /* si.totalram; */
+	drm_ram_used	  = 0;
+}
+
+/* drm_mem_info is called whenever a process reads /dev/drm/mem. */
+
+static int _drm_mem_info SYSCTL_HANDLER_ARGS
+{
+	drm_mem_stats_t *pt;
+	char buf[128];
+	int error;
+
+	DRM_SYSCTL_PRINT("		  total counts			"
+		       " |    outstanding  \n");
+	DRM_SYSCTL_PRINT("type	   alloc freed fail	bytes	   freed"
+		       " | allocs      bytes\n\n");
+	DRM_SYSCTL_PRINT("%-9.9s %5d %5d %4d %10lu	    |\n",
+		       "system", 0, 0, 0, drm_ram_available);
+	DRM_SYSCTL_PRINT("%-9.9s %5d %5d %4d %10lu	    |\n",
+		       "locked", 0, 0, 0, drm_ram_used);
+	DRM_SYSCTL_PRINT("\n");
+	for (pt = drm_mem_stats; pt->name; pt++) {
+		DRM_SYSCTL_PRINT("%-9.9s %5d %5d %4d %10lu %10lu | %6d %10ld\n",
+			       pt->name,
+			       pt->succeed_count,
+			       pt->free_count,
+			       pt->fail_count,
+			       pt->bytes_allocated,
+			       pt->bytes_freed,
+			       pt->succeed_count - pt->free_count,
+			       (long)pt->bytes_allocated
+			       - (long)pt->bytes_freed);
+	}
+	SYSCTL_OUT(req, "", 1);
+	
+	return 0;
+}
+
+int drm_mem_info SYSCTL_HANDLER_ARGS
+{
+	int ret;
+	
+	simple_lock(&drm_mem_lock);
+	ret = _drm_mem_info(oidp, arg1, arg2, req);
+	simple_unlock(&drm_mem_lock);
+	return ret;
+}
+
+void *drm_alloc(size_t size, int area)
+{
+	void *pt;
+	
+	if (!size) {
+		DRM_MEM_ERROR(area, "Allocating 0 bytes\n");
+		return NULL;
+	}
+	
+	if (!(pt = malloc(size, M_DRM, M_NOWAIT))) {
+		simple_lock(&drm_mem_lock);
+		++drm_mem_stats[area].fail_count;
+		simple_unlock(&drm_mem_lock);
+		return NULL;
+	}
+	simple_lock(&drm_mem_lock);
+	++drm_mem_stats[area].succeed_count;
+	drm_mem_stats[area].bytes_allocated += size;
+	simple_unlock(&drm_mem_lock);
+	return pt;
+}
+
+void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area)
+{
+	void *pt;
+	
+	if (!(pt = drm_alloc(size, area))) return NULL;
+	if (oldpt && oldsize) {
+		memcpy(pt, oldpt, oldsize);
+		drm_free(oldpt, oldsize, area);
+	}
+	return pt;
+}
+
+char *drm_strdup(const char *s, int area)
+{
+	char *pt;
+	int	 length = s ? strlen(s) : 0;
+	
+	if (!(pt = drm_alloc(length+1, area))) return NULL;
+	strcpy(pt, s);
+	return pt;
+}
+
+void drm_strfree(char *s, int area)
+{
+	unsigned int size;
+	
+	if (!s) return;
+	
+	size = 1 + (s ? strlen(s) : 0);
+	drm_free((void *)s, size, area);
+}
+
+void drm_free(void *pt, size_t size, int area)
+{
+	int alloc_count;
+	int free_count;
+	
+	if (!pt) DRM_MEM_ERROR(area, "Attempt to free NULL pointer\n");
+	else	 free(pt, M_DRM);
+	simple_lock(&drm_mem_lock);
+	drm_mem_stats[area].bytes_freed += size;
+	free_count  = ++drm_mem_stats[area].free_count;
+	alloc_count =	drm_mem_stats[area].succeed_count;
+	simple_unlock(&drm_mem_lock);
+	if (free_count > alloc_count) {
+		DRM_MEM_ERROR(area, "Excess frees: %d frees, %d allocs\n",
+			      free_count, alloc_count);
+	}
+}
+
+unsigned long drm_alloc_pages(int order, int area)
+{
+	vm_offset_t address;
+	unsigned long bytes	  = PAGE_SIZE << order;
+	unsigned long addr;
+	unsigned int  sz;
+	
+	simple_lock(&drm_mem_lock);
+	if (drm_ram_used > +(DRM_RAM_PERCENT * drm_ram_available) / 100) {
+		simple_unlock(&drm_mem_lock);
+		return 0;
+	}
+	simple_unlock(&drm_mem_lock);
+	
+	address = (vm_offset_t) contigmalloc(1<<order, M_DRM, M_WAITOK, 0, ~0, 1, 0);
+	if (!address) {
+		simple_lock(&drm_mem_lock);
+		++drm_mem_stats[area].fail_count;
+		simple_unlock(&drm_mem_lock);
+		return 0;
+	}
+	simple_lock(&drm_mem_lock);
+	++drm_mem_stats[area].succeed_count;
+	drm_mem_stats[area].bytes_allocated += bytes;
+	drm_ram_used		            += bytes;
+	simple_unlock(&drm_mem_lock);
+	
+	
+				/* Zero outside the lock */
+	memset((void *)address, 0, bytes);
+	
+				/* Reserve */
+	for (addr = address, sz = bytes;
+	     sz > 0;
+	     addr += PAGE_SIZE, sz -= PAGE_SIZE) {
+		/* mem_map_reserve(MAP_NR(addr));*/
+	}
+	
+	return address;
+}
+
+void drm_free_pages(unsigned long address, int order, int area)
+{
+	unsigned long bytes = PAGE_SIZE << order;
+	int		  alloc_count;
+	int		  free_count;
+	unsigned long addr;
+	unsigned int  sz;
+	
+	if (!address) {
+		DRM_MEM_ERROR(area, "Attempt to free address 0\n");
+	} else {
+				/* Unreserve */
+		for (addr = address, sz = bytes;
+		     sz > 0;
+		     addr += PAGE_SIZE, sz -= PAGE_SIZE) {
+			/* mem_map_unreserve(MAP_NR(addr));*/
+		}
+		contigfree((void *) address, bytes, M_DRM);
+	}
+	
+	simple_lock(&drm_mem_lock);
+	free_count  = ++drm_mem_stats[area].free_count;
+	alloc_count =	drm_mem_stats[area].succeed_count;
+	drm_mem_stats[area].bytes_freed += bytes;
+	drm_ram_used			-= bytes;
+	simple_unlock(&drm_mem_lock);
+	if (free_count > alloc_count) {
+		DRM_MEM_ERROR(area,
+			      "Excess frees: %d frees, %d allocs\n",
+			      free_count, alloc_count);
+	}
+}
+
+void *drm_ioremap(unsigned long offset, unsigned long size)
+{
+	void *pt;
+	
+	if (!size) {
+		DRM_MEM_ERROR(DRM_MEM_MAPPINGS,
+			      "Mapping 0 bytes at 0x%08lx\n", offset);
+		return NULL;
+	}
+	
+	if (!(pt = pmap_mapdev(offset, size))) {
+		simple_lock(&drm_mem_lock);
+		++drm_mem_stats[DRM_MEM_MAPPINGS].fail_count;
+		simple_unlock(&drm_mem_lock);
+		return NULL;
+	}
+	simple_lock(&drm_mem_lock);
+	++drm_mem_stats[DRM_MEM_MAPPINGS].succeed_count;
+	drm_mem_stats[DRM_MEM_MAPPINGS].bytes_allocated += size;
+	simple_unlock(&drm_mem_lock);
+	return pt;
+}
+
+void drm_ioremapfree(void *pt, unsigned long size)
+{
+	int alloc_count;
+	int free_count;
+	
+	if (!pt)
+		DRM_MEM_ERROR(DRM_MEM_MAPPINGS,
+			      "Attempt to free NULL pointer\n");
+	else
+		pmap_unmapdev((vm_offset_t) pt, size);
+	
+	simple_lock(&drm_mem_lock);
+	drm_mem_stats[DRM_MEM_MAPPINGS].bytes_freed += size;
+	free_count  = ++drm_mem_stats[DRM_MEM_MAPPINGS].free_count;
+	alloc_count =	drm_mem_stats[DRM_MEM_MAPPINGS].succeed_count;
+	simple_unlock(&drm_mem_lock);
+	if (free_count > alloc_count) {
+		DRM_MEM_ERROR(DRM_MEM_MAPPINGS,
+			      "Excess frees: %d frees, %d allocs\n",
+			      free_count, alloc_count);
+	}
+}
+
+#ifdef DRM_AGP
+void *drm_alloc_agp(int pages, u_int32_t type)
+{
+	device_t dev = agp_find_device();
+	void *handle;
+
+	if (!dev)
+		return NULL;
+
+	if (!pages) {
+		DRM_MEM_ERROR(DRM_MEM_TOTALAGP, "Allocating 0 pages\n");
+		return NULL;
+	}
+	
+	if ((handle = agp_alloc_memory(dev, type, pages << AGP_PAGE_SHIFT))) {
+		simple_lock(&drm_mem_lock);
+		++drm_mem_stats[DRM_MEM_TOTALAGP].succeed_count;
+		drm_mem_stats[DRM_MEM_TOTALAGP].bytes_allocated
+			+= pages << PAGE_SHIFT;
+		simple_unlock(&drm_mem_lock);
+		return handle;
+	}
+	simple_lock(&drm_mem_lock);
+	++drm_mem_stats[DRM_MEM_TOTALAGP].fail_count;
+	simple_unlock(&drm_mem_lock);
+	return NULL;
+}
+
+int drm_free_agp(void *handle, int pages)
+{
+	device_t dev = agp_find_device();
+	int           alloc_count;
+	int           free_count;
+	int           retval = EINVAL;
+
+	if (!dev)
+		return EINVAL;
+
+	if (!handle) {
+		DRM_MEM_ERROR(DRM_MEM_TOTALAGP,
+			      "Attempt to free NULL AGP handle\n");
+		return retval;
+	}
+	
+	agp_free_memory(dev, handle);
+	simple_lock(&drm_mem_lock);
+	free_count  = ++drm_mem_stats[DRM_MEM_TOTALAGP].free_count;
+	alloc_count =   drm_mem_stats[DRM_MEM_TOTALAGP].succeed_count;
+	drm_mem_stats[DRM_MEM_TOTALAGP].bytes_freed
+		+= pages << PAGE_SHIFT;
+	simple_unlock(&drm_mem_lock);
+	if (free_count > alloc_count) {
+		DRM_MEM_ERROR(DRM_MEM_TOTALAGP,
+			      "Excess frees: %d frees, %d allocs\n",
+			      free_count, alloc_count);
+	}
+	return 0;
+}
+
+int drm_bind_agp(void *handle, unsigned int start)
+{
+	device_t dev = agp_find_device();
+	int retcode  = EINVAL;
+	struct agp_memory_info info;
+
+	DRM_DEBUG("drm_bind_agp called\n");
+
+	if (!dev)
+		return EINVAL;
+
+	if (!handle) {
+		DRM_MEM_ERROR(DRM_MEM_BOUNDAGP,
+			      "Attempt to bind NULL AGP handle\n");
+		return retcode;
+	}
+
+	if (!(retcode = agp_bind_memory(dev, handle,
+					start << AGP_PAGE_SHIFT))) {
+		simple_lock(&drm_mem_lock);
+		++drm_mem_stats[DRM_MEM_BOUNDAGP].succeed_count;
+		agp_memory_info(dev, handle, &info);
+		drm_mem_stats[DRM_MEM_BOUNDAGP].bytes_allocated
+			+= info.ami_size;
+		simple_unlock(&drm_mem_lock);
+		DRM_DEBUG("drm_agp.bind_memory: retcode %d\n", retcode);
+		return retcode;
+	}
+	simple_lock(&drm_mem_lock);
+	++drm_mem_stats[DRM_MEM_BOUNDAGP].fail_count;
+	simple_unlock(&drm_mem_lock);
+	return retcode;
+}
+
+int drm_unbind_agp(void *handle)
+{
+	device_t dev = agp_find_device();
+	int alloc_count;
+	int free_count;
+	int retcode = EINVAL;
+	struct agp_memory_info info;
+	
+	if (!dev)
+		return EINVAL;
+
+	if (!handle) {
+		DRM_MEM_ERROR(DRM_MEM_BOUNDAGP,
+			      "Attempt to unbind NULL AGP handle\n");
+		return retcode;
+	}
+
+	
+	agp_memory_info(dev, handle, &info);
+	if ((retcode = agp_unbind_memory(dev, handle)))
+		return retcode;
+	simple_lock(&drm_mem_lock);
+	free_count  = ++drm_mem_stats[DRM_MEM_BOUNDAGP].free_count;
+	alloc_count = drm_mem_stats[DRM_MEM_BOUNDAGP].succeed_count;
+	drm_mem_stats[DRM_MEM_BOUNDAGP].bytes_freed += info.ami_size;
+	simple_unlock(&drm_mem_lock);
+	if (free_count > alloc_count) {
+		DRM_MEM_ERROR(DRM_MEM_BOUNDAGP,
+			      "Excess frees: %d frees, %d allocs\n",
+			      free_count, alloc_count);
+	}
+	return retcode;
+}
+#endif
diff --git a/bsd/drm/proc.c b/bsd/drm/proc.c
new file mode 100644
index 00000000..12168aa3
--- /dev/null
+++ b/bsd/drm/proc.c
@@ -0,0 +1,568 @@
+/* proc.c -- /proc support for DRM -*- c -*-
+ * Created: Mon Jan 11 09:48:47 1999 by faith@precisioninsight.com
+ * Revised: Fri Aug 20 11:31:48 1999 by faith@precisioninsight.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * 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
+ * PRECISION INSIGHT 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/proc.c,v 1.4 1999/08/20 15:36:46 faith Exp $
+ * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/proc.c,v 1.1 1999/09/25 14:38:02 dawes Exp $
+ *
+ */
+
+#define __NO_VERSION__
+#include "drmP.h"
+
+static struct proc_dir_entry *drm_root	   = NULL;
+static struct proc_dir_entry *drm_dev_root = NULL;
+static char		     drm_slot_name[64];
+
+static int	   drm_name_info(char *buf, char **start, off_t offset,
+				 int len, int *eof, void *data);
+static int	   drm_vm_info(char *buf, char **start, off_t offset,
+			       int len, int *eof, void *data);
+static int	   drm_clients_info(char *buf, char **start, off_t offset,
+				    int len, int *eof, void *data);
+static int	   drm_queues_info(char *buf, char **start, off_t offset,
+				   int len, int *eof, void *data);
+static int	   drm_bufs_info(char *buf, char **start, off_t offset,
+				 int len, int *eof, void *data);
+#if DRM_DEBUG_CODE
+static int	   drm_vma_info(char *buf, char **start, off_t offset,
+				int len, int *eof, void *data);
+#endif
+#if DRM_DMA_HISTOGRAM
+static int	   drm_histo_info(char *buf, char **start, off_t offset,
+				  int len, int *eof, void *data);
+#endif
+
+struct drm_proc_list {
+	const char *name;
+	int	   (*f)(char *, char **, off_t, int, int *, void *);
+} drm_proc_list[] = {
+	{ "name",    drm_name_info    },
+	{ "mem",     drm_mem_info     },
+	{ "vm",	     drm_vm_info      },
+	{ "clients", drm_clients_info },
+	{ "queues",  drm_queues_info  },
+	{ "bufs",    drm_bufs_info    },
+#if DRM_DEBUG_CODE
+	{ "vma",     drm_vma_info     },
+#endif
+#if DRM_DMA_HISTOGRAM
+	{ "histo",   drm_histo_info   },
+#endif
+};
+#define DRM_PROC_ENTRIES (sizeof(drm_proc_list)/sizeof(drm_proc_list[0]))
+
+int drm_proc_init(drm_device_t *dev)
+{
+	struct proc_dir_entry *ent;
+	int		      i, j;
+
+	drm_root = create_proc_entry("graphics", S_IFDIR, NULL);
+	if (!drm_root) {
+		DRM_ERROR("Cannot create /proc/graphics\n");
+		return -1;
+	}
+
+				/* Instead of doing this search, we should
+				   add some global support for /proc/graphics. */
+	for (i = 0; i < 8; i++) {
+		sprintf(drm_slot_name, "graphics/%d", i);
+		drm_dev_root = create_proc_entry(drm_slot_name, S_IFDIR, NULL);
+		if (!drm_dev_root) {
+			DRM_ERROR("Cannot create /proc/%s\n", drm_slot_name);
+			remove_proc_entry("graphics", NULL);
+		}
+		if (drm_dev_root->nlink == 2) break;
+		drm_dev_root = NULL;
+	}
+	if (!drm_dev_root) {
+		DRM_ERROR("Cannot find slot in /proc/graphics\n");
+		return -1;
+	}
+
+	for (i = 0; i < DRM_PROC_ENTRIES; i++) {
+		ent = create_proc_entry(drm_proc_list[i].name,
+					S_IFREG|S_IRUGO, drm_dev_root);
+		if (!ent) {
+			DRM_ERROR("Cannot create /proc/%s/%s\n",
+				  drm_slot_name, drm_proc_list[i].name);
+			for (j = 0; j < i; j++)
+				remove_proc_entry(drm_proc_list[i].name,
+						  drm_dev_root);
+			remove_proc_entry(drm_slot_name, NULL);
+			remove_proc_entry("graphics", NULL);
+			return -1;
+		}
+		ent->read_proc = drm_proc_list[i].f;
+		ent->data      = dev;
+	}
+
+	return 0;
+}
+
+
+int drm_proc_cleanup(void)
+{
+	int i;
+	
+	if (drm_root) {
+		if (drm_dev_root) {
+			for (i = 0; i < DRM_PROC_ENTRIES; i++) {
+				remove_proc_entry(drm_proc_list[i].name,
+						  drm_dev_root);
+			}
+			remove_proc_entry(drm_slot_name, NULL);
+		}
+		remove_proc_entry("graphics", NULL);
+		remove_proc_entry(DRM_NAME, NULL);
+	}
+	drm_root = drm_dev_root = NULL;
+	return 0;
+}
+
+static int drm_name_info(char *buf, char **start, off_t offset, int len,
+			 int *eof, void *data)
+{
+	drm_device_t *dev = (drm_device_t *)data;
+
+	if (offset > 0) return 0; /* no partial requests */
+	len  = 0;
+	*eof = 1;
+
+	if (dev->unique) {
+		DRM_PROC_PRINT("%s 0x%x %s\n",
+			       dev->name, dev->device, dev->unique);
+	} else {
+		DRM_PROC_PRINT("%s 0x%x\n", dev->name, dev->device);
+	}
+	return len;
+}
+
+static int _drm_vm_info(char *buf, char **start, off_t offset, int len,
+			int *eof, void *data)
+{
+	drm_device_t *dev = (drm_device_t *)data;
+	drm_map_t    *map;
+	const char   *types[] = { "FB", "REG", "SHM" };
+	const char   *type;
+	int	     i;
+
+	if (offset > 0) return 0; /* no partial requests */
+	len  = 0;
+	*eof = 1;
+	DRM_PROC_PRINT("slot	 offset	      size type flags	 "
+		       "address mtrr\n\n");
+	for (i = 0; i < dev->map_count; i++) {
+		map = dev->maplist[i];
+		if (map->type < 0 || map->type > 2) type = "??";
+		else				    type = types[map->type];
+		DRM_PROC_PRINT("%4d 0x%08lx 0x%08lx %4.4s  0x%02x 0x%08lx ",
+			       i,
+			       map->offset,
+			       map->size,
+			       type,
+			       map->flags,
+			       (unsigned long)map->handle);
+		if (map->mtrr < 0) {
+			DRM_PROC_PRINT("none\n");
+		} else {
+			DRM_PROC_PRINT("%4d\n", map->mtrr);
+		}
+	}
+
+	return len;
+}
+
+static int drm_vm_info(char *buf, char **start, off_t offset, int len,
+		       int *eof, void *data)
+{
+	drm_device_t *dev = (drm_device_t *)data;
+	int	     ret;
+
+	down(&dev->struct_sem);
+	ret = _drm_vm_info(buf, start, offset, len, eof, data);
+	up(&dev->struct_sem);
+	return ret;
+}
+
+
+static int _drm_queues_info(char *buf, char **start, off_t offset, int len,
+			    int *eof, void *data)
+{
+	drm_device_t *dev = (drm_device_t *)data;
+	int	     i;
+	drm_queue_t  *q;
+
+	if (offset > 0) return 0; /* no partial requests */
+	len  = 0;
+	*eof = 1;
+	DRM_PROC_PRINT("  ctx/flags   use   fin"
+		       "   blk/rw/rwf  wait    flushed	   queued"
+		       "      locks\n\n");
+	for (i = 0; i < dev->queue_count; i++) {
+		q = dev->queuelist[i];
+		atomic_inc(&q->use_count);
+		DRM_PROC_PRINT_RET(atomic_dec(&q->use_count),
+				   "%5d/0x%03x %5d %5d"
+				   " %5d/%c%c/%c%c%c %5d %10d %10d %10d\n",
+				   i,
+				   q->flags,
+				   atomic_read(&q->use_count),
+				   atomic_read(&q->finalization),
+				   atomic_read(&q->block_count),
+				   atomic_read(&q->block_read) ? 'r' : '-',
+				   atomic_read(&q->block_write) ? 'w' : '-',
+				   waitqueue_active(&q->read_queue) ? 'r':'-',
+				   waitqueue_active(&q->write_queue) ? 'w':'-',
+				   waitqueue_active(&q->flush_queue) ? 'f':'-',
+				   DRM_BUFCOUNT(&q->waitlist),
+				   atomic_read(&q->total_flushed),
+				   atomic_read(&q->total_queued),
+				   atomic_read(&q->total_locks));
+		atomic_dec(&q->use_count);
+	}
+	
+	return len;
+}
+
+static int drm_queues_info(char *buf, char **start, off_t offset, int len,
+			   int *eof, void *data)
+{
+	drm_device_t *dev = (drm_device_t *)data;
+	int	     ret;
+
+	down(&dev->struct_sem);
+	ret = _drm_queues_info(buf, start, offset, len, eof, data);
+	up(&dev->struct_sem);
+	return ret;
+}
+
+/* drm_bufs_info is called whenever a process reads
+   /dev/drm/<dev>/bufs. */
+
+static int _drm_bufs_info(char *buf, char **start, off_t offset, int len,
+			  int *eof, void *data)
+{
+	drm_device_t	 *dev = (drm_device_t *)data;
+	drm_device_dma_t *dma = dev->dma;
+	int		 i;
+
+	if (!dma)	return 0;
+	if (offset > 0) return 0; /* no partial requests */
+	len  = 0;
+	*eof = 1;
+	DRM_PROC_PRINT(" o     size count  free	 segs pages    kB\n\n");
+	for (i = 0; i <= DRM_MAX_ORDER; i++) {
+		if (dma->bufs[i].buf_count)
+			DRM_PROC_PRINT("%2d %8d %5d %5d %5d %5d %5ld\n",
+				       i,
+				       dma->bufs[i].buf_size,
+				       dma->bufs[i].buf_count,
+				       atomic_read(&dma->bufs[i]
+						   .freelist.count),
+				       dma->bufs[i].seg_count,
+				       dma->bufs[i].seg_count
+				       *(1 << dma->bufs[i].page_order),
+				       (dma->bufs[i].seg_count
+					* (1 << dma->bufs[i].page_order))
+				       * PAGE_SIZE / 1024);
+	}
+	DRM_PROC_PRINT("\n");
+	for (i = 0; i < dma->buf_count; i++) {
+		if (i && !(i%32)) DRM_PROC_PRINT("\n");
+		DRM_PROC_PRINT(" %d", dma->buflist[i]->list);
+	}
+	DRM_PROC_PRINT("\n");
+
+	return len;
+}
+
+static int drm_bufs_info(char *buf, char **start, off_t offset, int len,
+			 int *eof, void *data)
+{
+	drm_device_t *dev = (drm_device_t *)data;
+	int	     ret;
+
+	down(&dev->struct_sem);
+	ret = _drm_bufs_info(buf, start, offset, len, eof, data);
+	up(&dev->struct_sem);
+	return ret;
+}
+
+
+static int _drm_clients_info(char *buf, char **start, off_t offset, int len,
+			     int *eof, void *data)
+{
+	drm_device_t *dev = (drm_device_t *)data;
+	drm_file_t   *priv;
+
+	if (offset > 0) return 0; /* no partial requests */
+	len  = 0;
+	*eof = 1;
+	DRM_PROC_PRINT("a dev	pid    uid	magic	  ioctls\n\n");
+	for (priv = dev->file_first; priv; priv = priv->next) {
+		DRM_PROC_PRINT("%c %3d %5d %5d %10u %10lu\n",
+			       priv->authenticated ? 'y' : 'n',
+			       priv->minor,
+			       priv->pid,
+			       priv->uid,
+			       priv->magic,
+			       priv->ioctl_count);
+	}
+
+	return len;
+}
+
+static int drm_clients_info(char *buf, char **start, off_t offset, int len,
+			    int *eof, void *data)
+{
+	drm_device_t *dev = (drm_device_t *)data;
+	int	     ret;
+
+	down(&dev->struct_sem);
+	ret = _drm_clients_info(buf, start, offset, len, eof, data);
+	up(&dev->struct_sem);
+	return ret;
+}
+
+#if DRM_DEBUG_CODE
+
+static int _drm_vma_info(char *buf, char **start, off_t offset, int len,
+			 int *eof, void *data)
+{
+	drm_device_t	      *dev = (drm_device_t *)data;
+	drm_vma_entry_t	      *pt;
+	pgd_t		      *pgd;
+	pmd_t		      *pmd;
+	pte_t		      *pte;
+	unsigned long	      i;
+	struct vm_area_struct *vma;
+	unsigned long	      address;
+#if defined(__i386__)
+	unsigned int	      pgprot;
+#endif
+
+	if (offset > 0) return 0; /* no partial requests */
+	len  = 0;
+	*eof = 1;
+	DRM_PROC_PRINT("vma use count: %d, high_memory = %p, 0x%08lx\n",
+		       atomic_read(&dev->vma_count),
+		       high_memory, virt_to_phys(high_memory));
+	for (pt = dev->vmalist; pt; pt = pt->next) {
+		if (!(vma = pt->vma)) continue;
+		DRM_PROC_PRINT("\n%5d 0x%08lx-0x%08lx %c%c%c%c%c%c 0x%08lx",
+			       pt->pid,
+			       vma->vm_start,
+			       vma->vm_end,
+			       vma->vm_flags & VM_READ	   ? 'r' : '-',
+			       vma->vm_flags & VM_WRITE	   ? 'w' : '-',
+			       vma->vm_flags & VM_EXEC	   ? 'x' : '-',
+			       vma->vm_flags & VM_MAYSHARE ? 's' : 'p',
+			       vma->vm_flags & VM_LOCKED   ? 'l' : '-',
+			       vma->vm_flags & VM_IO	   ? 'i' : '-',
+			       vma->vm_offset );
+#if defined(__i386__)
+		pgprot = pgprot_val(vma->vm_page_prot);
+		DRM_PROC_PRINT(" %c%c%c%c%c%c%c%c%c",
+			       pgprot & _PAGE_PRESENT  ? 'p' : '-',
+			       pgprot & _PAGE_RW       ? 'w' : 'r',
+			       pgprot & _PAGE_USER     ? 'u' : 's',
+			       pgprot & _PAGE_PWT      ? 't' : 'b',
+			       pgprot & _PAGE_PCD      ? 'u' : 'c',
+			       pgprot & _PAGE_ACCESSED ? 'a' : '-',
+			       pgprot & _PAGE_DIRTY    ? 'd' : '-',
+			       pgprot & _PAGE_4M       ? 'm' : 'k',
+			       pgprot & _PAGE_GLOBAL   ? 'g' : 'l' );
+#endif		
+		DRM_PROC_PRINT("\n");
+		for (i = vma->vm_start; i < vma->vm_end; i += PAGE_SIZE) {
+			pgd = pgd_offset(vma->vm_mm, i);
+			pmd = pmd_offset(pgd, i);
+			pte = pte_offset(pmd, i);
+			if (pte_present(*pte)) {
+				address = __pa(pte_page(*pte))
+					+ (i & (PAGE_SIZE-1));
+				DRM_PROC_PRINT("      0x%08lx -> 0x%08lx"
+					       " %c%c%c%c%c\n",
+					       i,
+					       address,
+					       pte_read(*pte)  ? 'r' : '-',
+					       pte_write(*pte) ? 'w' : '-',
+					       pte_exec(*pte)  ? 'x' : '-',
+					       pte_dirty(*pte) ? 'd' : '-',
+					       pte_young(*pte) ? 'a' : '-' );
+			} else {
+				DRM_PROC_PRINT("      0x%08lx\n", i);
+			}
+		}
+	}
+	
+	return len;
+}
+
+static int drm_vma_info(char *buf, char **start, off_t offset, int len,
+			int *eof, void *data)
+{
+	drm_device_t *dev = (drm_device_t *)data;
+	int	     ret;
+
+	down(&dev->struct_sem);
+	ret = _drm_vma_info(buf, start, offset, len, eof, data);
+	up(&dev->struct_sem);
+	return ret;
+}
+#endif
+
+
+#if DRM_DMA_HISTOGRAM
+static int _drm_histo_info(char *buf, char **start, off_t offset, int len,
+			   int *eof, void *data)
+{
+	drm_device_t	 *dev = (drm_device_t *)data;
+	drm_device_dma_t *dma = dev->dma;
+	int		 i;
+	unsigned long	 slot_value = DRM_DMA_HISTOGRAM_INITIAL;
+	unsigned long	 prev_value = 0;
+	drm_buf_t	 *buffer;
+
+	if (offset > 0) return 0; /* no partial requests */
+	len  = 0;
+	*eof = 1;
+
+	DRM_PROC_PRINT("general statistics:\n");
+	DRM_PROC_PRINT("total	 %10u\n", atomic_read(&dev->histo.total));
+	DRM_PROC_PRINT("open	 %10u\n", atomic_read(&dev->total_open));
+	DRM_PROC_PRINT("close	 %10u\n", atomic_read(&dev->total_close));
+	DRM_PROC_PRINT("ioctl	 %10u\n", atomic_read(&dev->total_ioctl));
+	DRM_PROC_PRINT("irq	 %10u\n", atomic_read(&dev->total_irq));
+	DRM_PROC_PRINT("ctx	 %10u\n", atomic_read(&dev->total_ctx));
+	
+	DRM_PROC_PRINT("\nlock statistics:\n");
+	DRM_PROC_PRINT("locks	 %10u\n", atomic_read(&dev->total_locks));
+	DRM_PROC_PRINT("unlocks	 %10u\n", atomic_read(&dev->total_unlocks));
+	DRM_PROC_PRINT("contends %10u\n", atomic_read(&dev->total_contends));
+	DRM_PROC_PRINT("sleeps	 %10u\n", atomic_read(&dev->total_sleeps));
+
+
+	if (dma) {
+		DRM_PROC_PRINT("\ndma statistics:\n");
+		DRM_PROC_PRINT("prio	 %10u\n",
+			       atomic_read(&dma->total_prio));
+		DRM_PROC_PRINT("bytes	 %10u\n",
+			       atomic_read(&dma->total_bytes));
+		DRM_PROC_PRINT("dmas	 %10u\n",
+			       atomic_read(&dma->total_dmas));
+		DRM_PROC_PRINT("missed:\n");
+		DRM_PROC_PRINT("  dma	 %10u\n",
+			       atomic_read(&dma->total_missed_dma));
+		DRM_PROC_PRINT("  lock	 %10u\n",
+			       atomic_read(&dma->total_missed_lock));
+		DRM_PROC_PRINT("  free	 %10u\n",
+			       atomic_read(&dma->total_missed_free));
+		DRM_PROC_PRINT("  sched	 %10u\n",
+			       atomic_read(&dma->total_missed_sched));
+		DRM_PROC_PRINT("tried	 %10u\n",
+			       atomic_read(&dma->total_tried));
+		DRM_PROC_PRINT("hit	 %10u\n",
+			       atomic_read(&dma->total_hit));
+		DRM_PROC_PRINT("lost	 %10u\n",
+			       atomic_read(&dma->total_lost));
+		
+		buffer = dma->next_buffer;
+		if (buffer) {
+			DRM_PROC_PRINT("next_buffer %7d\n", buffer->idx);
+		} else {
+			DRM_PROC_PRINT("next_buffer    none\n");
+		}
+		buffer = dma->this_buffer;
+		if (buffer) {
+			DRM_PROC_PRINT("this_buffer %7d\n", buffer->idx);
+		} else {
+			DRM_PROC_PRINT("this_buffer    none\n");
+		}
+	}
+	
+
+	DRM_PROC_PRINT("\nvalues:\n");
+	if (dev->lock.hw_lock) {
+		DRM_PROC_PRINT("lock	       0x%08x\n",
+			       dev->lock.hw_lock->lock);
+	} else {
+		DRM_PROC_PRINT("lock		     none\n");
+	}
+	DRM_PROC_PRINT("context_flag   0x%08x\n", dev->context_flag);
+	DRM_PROC_PRINT("interrupt_flag 0x%08x\n", dev->interrupt_flag);
+	DRM_PROC_PRINT("dma_flag       0x%08x\n", dev->dma_flag);
+
+	DRM_PROC_PRINT("queue_count    %10d\n",	 dev->queue_count);
+	DRM_PROC_PRINT("last_context   %10d\n",	 dev->last_context);
+	DRM_PROC_PRINT("last_switch    %10lu\n", dev->last_switch);
+	DRM_PROC_PRINT("last_checked   %10d\n",	 dev->last_checked);
+		
+	
+	DRM_PROC_PRINT("\n		       q2d	  d2c	     c2f"
+		       "	q2c	   q2f	      dma	 sch"
+		       "	ctx	  lacq	     lhld\n\n");
+	for (i = 0; i < DRM_DMA_HISTOGRAM_SLOTS; i++) {
+		DRM_PROC_PRINT("%s %10lu %10u %10u %10u %10u %10u"
+			       " %10u %10u %10u %10u %10u\n",
+			       i == DRM_DMA_HISTOGRAM_SLOTS - 1 ? ">=" : "< ",
+			       i == DRM_DMA_HISTOGRAM_SLOTS - 1
+			       ? prev_value : slot_value ,
+			       
+			       atomic_read(&dev->histo
+					   .queued_to_dispatched[i]),
+			       atomic_read(&dev->histo
+					   .dispatched_to_completed[i]),
+			       atomic_read(&dev->histo
+					   .completed_to_freed[i]),
+			       
+			       atomic_read(&dev->histo
+					   .queued_to_completed[i]),
+			       atomic_read(&dev->histo
+					   .queued_to_freed[i]),
+			       atomic_read(&dev->histo.dma[i]),
+			       atomic_read(&dev->histo.schedule[i]),
+			       atomic_read(&dev->histo.ctx[i]),
+			       atomic_read(&dev->histo.lacq[i]),
+			       atomic_read(&dev->histo.lhld[i]));
+		prev_value = slot_value;
+		slot_value = DRM_DMA_HISTOGRAM_NEXT(slot_value);
+	}
+	return len;
+}
+
+static int drm_histo_info(char *buf, char **start, off_t offset, int len,
+			  int *eof, void *data)
+{
+	drm_device_t *dev = (drm_device_t *)data;
+	int	     ret;
+
+	down(&dev->struct_sem);
+	ret = _drm_histo_info(buf, start, offset, len, eof, data);
+	up(&dev->struct_sem);
+	return ret;
+}
+#endif
diff --git a/bsd/drm/sysctl.c b/bsd/drm/sysctl.c
new file mode 100644
index 00000000..7c736abf
--- /dev/null
+++ b/bsd/drm/sysctl.c
@@ -0,0 +1,554 @@
+/* proc.c -- /proc support for DRM -*- c -*-
+ * Created: Mon Jan 11 09:48:47 1999 by faith@precisioninsight.com
+ * Revised: Fri Aug 20 11:31:48 1999 by faith@precisioninsight.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * 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
+ * PRECISION INSIGHT 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.
+ * 
+ * $PI$
+ * $XFree86$
+ *
+ */
+
+#define __NO_VERSION__
+#include "drmP.h"
+#include <sys/sysctl.h>
+
+SYSCTL_NODE(_hw, OID_AUTO, dri, CTLFLAG_RW, 0, "DRI Graphics");
+
+static int	   drm_name_info SYSCTL_HANDLER_ARGS;
+static int	   drm_vm_info SYSCTL_HANDLER_ARGS;
+static int	   drm_clients_info SYSCTL_HANDLER_ARGS;
+static int	   drm_queues_info SYSCTL_HANDLER_ARGS;
+static int	   drm_bufs_info SYSCTL_HANDLER_ARGS;
+#if DRM_DEBUG_CODExx
+static int	   drm_vma_info SYSCTL_HANDLER_ARGS;
+#endif
+#if DRM_DMA_HISTOGRAM
+static int	   drm_histo_info SYSCTL_HANDLER_ARGS;
+#endif
+
+struct drm_sysctl_list {
+	const char *name;
+	int	   (*f) SYSCTL_HANDLER_ARGS;
+} drm_sysctl_list[] = {
+	{ "name",    drm_name_info    },
+	{ "mem",     drm_mem_info     },
+	{ "vm",	     drm_vm_info      },
+	{ "clients", drm_clients_info },
+	{ "queues",  drm_queues_info  },
+	{ "bufs",    drm_bufs_info    },
+#if DRM_DEBUG_CODExx
+	{ "vma",     drm_vma_info     },
+#endif
+#if DRM_DMA_HISTOGRAM
+	{ "histo",   drm_histo_info   },
+#endif
+};
+#define DRM_SYSCTL_ENTRIES (sizeof(drm_sysctl_list)/sizeof(drm_sysctl_list[0]))
+
+struct drm_sysctl_info {
+	struct sysctl_oid      oids[DRM_SYSCTL_ENTRIES + 1];
+	struct sysctl_oid_list list;
+	char		       name[2];
+};
+
+int drm_sysctl_init(drm_device_t *dev)
+{
+	struct drm_sysctl_info *info;
+	struct sysctl_oid *oid;
+	struct sysctl_oid *top;
+	int		  i;
+
+	/* Find the next free slot under hw.graphics */
+	i = 0;
+	SLIST_FOREACH(oid, &sysctl__hw_dri_children, oid_link) {
+		if (i <= oid->oid_arg2)
+			i = oid->oid_arg2 + 1;
+	}
+	
+	info = drm_alloc(sizeof *info, DRM_MEM_DRIVER);
+	dev->sysctl = info;
+
+	/* Construct the node under hw.graphics */
+	info->name[0] = '0' + i;
+	info->name[1] = 0;
+	oid = &info->oids[DRM_SYSCTL_ENTRIES];
+	bzero(oid, sizeof(*oid));
+	oid->oid_parent = &sysctl__hw_dri_children;
+	oid->oid_number = OID_AUTO;
+	oid->oid_kind = CTLTYPE_NODE | CTLFLAG_RW;
+	oid->oid_arg1 = &info->list;
+	oid->oid_arg2 = i;
+	oid->oid_name = info->name;
+	oid->oid_handler = 0;
+	oid->oid_fmt = "N";
+	SLIST_INIT(&info->list);
+	sysctl_register_oid(oid);
+	top = oid;
+
+	for (i = 0; i < DRM_SYSCTL_ENTRIES; i++) {
+		oid = &info->oids[i];
+		bzero(oid, sizeof(*oid));
+		oid->oid_parent = top->oid_arg1;
+		oid->oid_number = OID_AUTO;
+		oid->oid_kind = CTLTYPE_INT | CTLFLAG_RD;
+		oid->oid_arg1 = dev;
+		oid->oid_arg2 = 0;
+		oid->oid_name = drm_sysctl_list[i].name;
+		oid->oid_handler = drm_sysctl_list[i].f;
+		oid->oid_fmt = "A";
+		sysctl_register_oid(oid);
+	}
+
+	return 0;
+}
+
+int drm_sysctl_cleanup(drm_device_t *dev)
+{
+	int i;
+
+	DRM_DEBUG("dev->sysctl=%p\n", dev->sysctl);
+	for (i = 0; i < DRM_SYSCTL_ENTRIES + 1; i++)
+		sysctl_unregister_oid(&dev->sysctl->oids[i]);
+
+	drm_free(dev->sysctl, sizeof *dev->sysctl, DRM_MEM_DRIVER);
+	dev->sysctl = NULL;
+
+	return 0;
+}
+
+static int drm_name_info SYSCTL_HANDLER_ARGS
+{
+	drm_device_t *dev = arg1;
+	char buf[128];
+	int error;
+
+	if (dev->unique) {
+		DRM_SYSCTL_PRINT("%s 0x%x %s\n",
+			       dev->name, dev2udev(dev->devnode), dev->unique);
+	} else {
+		DRM_SYSCTL_PRINT("%s 0x%x\n", dev->name, dev2udev(dev->devnode));
+	}
+
+	SYSCTL_OUT(req, "", 1);
+
+	return 0;
+}
+
+static int _drm_vm_info SYSCTL_HANDLER_ARGS
+{
+	drm_device_t *dev = arg1;
+	drm_map_t    *map;
+	const char   *types[] = { "FB", "REG", "SHM" };
+	const char   *type;
+	int	     i;
+	char         buf[128];
+	int          error;
+
+	DRM_SYSCTL_PRINT("slot	 offset	      size type flags	 "
+			 "address mtrr\n\n");
+	error = SYSCTL_OUT(req, buf, strlen(buf));
+	if (error) return error;
+
+	for (i = 0; i < dev->map_count; i++) {
+		map = dev->maplist[i];
+		if (map->type < 0 || map->type > 2) type = "??";
+		else				    type = types[map->type];
+		DRM_SYSCTL_PRINT("%4d 0x%08lx 0x%08lx %4.4s  0x%02x 0x%08lx ",
+				 i,
+				 map->offset,
+				 map->size,
+				 type,
+				 map->flags,
+				 (unsigned long)map->handle);
+		if (map->mtrr < 0) {
+			DRM_SYSCTL_PRINT("none\n");
+		} else {
+			DRM_SYSCTL_PRINT("%4d\n", map->mtrr);
+		}
+	}
+	SYSCTL_OUT(req, "", 1);
+
+	return 0;
+}
+
+static int drm_vm_info SYSCTL_HANDLER_ARGS
+{
+	drm_device_t *dev = arg1;
+	int	     ret;
+
+	lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, curproc);
+	ret = _drm_vm_info(oidp, arg1, arg2, req);
+	lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc);
+
+	return ret;
+}
+
+
+static int _drm_queues_info SYSCTL_HANDLER_ARGS
+{
+	drm_device_t *dev = arg1;
+	int	     i;
+	drm_queue_t  *q;
+	char         buf[128];
+	int          error;
+
+	DRM_SYSCTL_PRINT("  ctx/flags   use   fin"
+			 "   blk/rw/rwf  wait    flushed	   queued"
+			 "      locks\n\n");
+	for (i = 0; i < dev->queue_count; i++) {
+		q = dev->queuelist[i];
+		atomic_inc(&q->use_count);
+		DRM_SYSCTL_PRINT_RET(atomic_dec(&q->use_count),
+				     "%5d/0x%03x %5d %5d"
+				     " %5d/%c%c/%c%c%c %5d %10d %10d %10d\n",
+				     i,
+				     q->flags,
+				     atomic_read(&q->use_count),
+				     atomic_read(&q->finalization),
+				     atomic_read(&q->block_count),
+				     atomic_read(&q->block_read) ? 'r' : '-',
+				     atomic_read(&q->block_write) ? 'w' : '-',
+				     q->read_queue ? 'r':'-',
+				     q->write_queue ? 'w':'-',
+				     q->flush_queue ? 'f':'-',
+				     DRM_BUFCOUNT(&q->waitlist),
+				     atomic_read(&q->total_flushed),
+				     atomic_read(&q->total_queued),
+				     atomic_read(&q->total_locks));
+		atomic_dec(&q->use_count);
+	}
+
+	SYSCTL_OUT(req, "", 1);
+	return 0;
+}
+
+static int drm_queues_info SYSCTL_HANDLER_ARGS
+{
+	drm_device_t *dev = arg1;
+	int	     ret;
+
+	lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, curproc);
+	ret = _drm_queues_info(oidp, arg1, arg2, req);
+	lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc);
+	return ret;
+}
+
+/* drm_bufs_info is called whenever a process reads
+   hw.dri.0.bufs. */
+
+static int _drm_bufs_info SYSCTL_HANDLER_ARGS
+{
+	drm_device_t	 *dev = arg1;
+	drm_device_dma_t *dma = dev->dma;
+	int		 i;
+	char             buf[128];
+	int              error;
+
+	if (!dma)	return 0;
+	DRM_SYSCTL_PRINT(" o     size count  free	 segs pages    kB\n\n");
+	for (i = 0; i <= DRM_MAX_ORDER; i++) {
+		if (dma->bufs[i].buf_count)
+			DRM_SYSCTL_PRINT("%2d %8d %5d %5d %5d %5d %5d\n",
+				       i,
+				       dma->bufs[i].buf_size,
+				       dma->bufs[i].buf_count,
+				       atomic_read(&dma->bufs[i]
+						   .freelist.count),
+				       dma->bufs[i].seg_count,
+				       dma->bufs[i].seg_count
+				       *(1 << dma->bufs[i].page_order),
+				       (dma->bufs[i].seg_count
+					* (1 << dma->bufs[i].page_order))
+				       * PAGE_SIZE / 1024);
+	}
+	DRM_SYSCTL_PRINT("\n");
+	for (i = 0; i < dma->buf_count; i++) {
+		if (i && !(i%32)) DRM_SYSCTL_PRINT("\n");
+		DRM_SYSCTL_PRINT(" %d", dma->buflist[i]->list);
+	}
+	DRM_SYSCTL_PRINT("\n");
+
+	SYSCTL_OUT(req, "", 1);
+	return 0;
+}
+
+static int drm_bufs_info SYSCTL_HANDLER_ARGS
+{
+	drm_device_t *dev = arg1;
+	int	     ret;
+
+	lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, curproc);
+	ret = _drm_bufs_info(oidp, arg1, arg2, req);
+	lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc);
+	return ret;
+}
+
+
+static int _drm_clients_info SYSCTL_HANDLER_ARGS
+{
+	drm_device_t *dev = arg1;
+	drm_file_t   *priv;
+	char         buf[128];
+	int          error;
+
+	DRM_SYSCTL_PRINT("a dev	pid    uid	magic	  ioctls\n\n");
+	TAILQ_FOREACH(priv, &dev->files, link) {
+		DRM_SYSCTL_PRINT("%c %3d %5d %5d %10u %10lu\n",
+			       priv->authenticated ? 'y' : 'n',
+			       priv->minor,
+			       priv->pid,
+			       priv->uid,
+			       priv->magic,
+			       priv->ioctl_count);
+	}
+
+	SYSCTL_OUT(req, "", 1);
+	return 0;
+}
+
+static int drm_clients_info SYSCTL_HANDLER_ARGS
+{
+	drm_device_t *dev = arg1;
+	int	     ret;
+
+	lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, curproc);
+	ret = _drm_clients_info(oidp, arg1, arg2, req);
+	lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc);
+	return ret;
+}
+
+#if DRM_DEBUG_CODExx
+
+static int _drm_vma_info SYSCTL_HANDLER_ARGS
+{
+	drm_device_t	      *dev = arg1;
+	drm_vma_entry_t	      *pt;
+	pgd_t		      *pgd;
+	pmd_t		      *pmd;
+	pte_t		      *pte;
+	unsigned long	      i;
+	struct vm_area_struct *vma;
+	unsigned long	      address;
+#if defined(__i386__)
+	unsigned int	      pgprot;
+#endif
+	char		      buf[128];
+	int		      error;
+
+	DRM_SYSCTL_PRINT("vma use count: %d, high_memory = %p, 0x%08lx\n",
+		       atomic_read(&dev->vma_count),
+		       high_memory, virt_to_phys(high_memory));
+	for (pt = dev->vmalist; pt; pt = pt->next) {
+		if (!(vma = pt->vma)) continue;
+		DRM_SYSCTL_PRINT("\n%5d 0x%08lx-0x%08lx %c%c%c%c%c%c 0x%08lx",
+			       pt->pid,
+			       vma->vm_start,
+			       vma->vm_end,
+			       vma->vm_flags & VM_READ	   ? 'r' : '-',
+			       vma->vm_flags & VM_WRITE	   ? 'w' : '-',
+			       vma->vm_flags & VM_EXEC	   ? 'x' : '-',
+			       vma->vm_flags & VM_MAYSHARE ? 's' : 'p',
+			       vma->vm_flags & VM_LOCKED   ? 'l' : '-',
+			       vma->vm_flags & VM_IO	   ? 'i' : '-',
+			       vma->vm_offset );
+#if defined(__i386__)
+		pgprot = pgprot_val(vma->vm_page_prot);
+		DRM_SYSCTL_PRINT(" %c%c%c%c%c%c%c%c%c",
+			       pgprot & _PAGE_PRESENT  ? 'p' : '-',
+			       pgprot & _PAGE_RW       ? 'w' : 'r',
+			       pgprot & _PAGE_USER     ? 'u' : 's',
+			       pgprot & _PAGE_PWT      ? 't' : 'b',
+			       pgprot & _PAGE_PCD      ? 'u' : 'c',
+			       pgprot & _PAGE_ACCESSED ? 'a' : '-',
+			       pgprot & _PAGE_DIRTY    ? 'd' : '-',
+			       pgprot & _PAGE_4M       ? 'm' : 'k',
+			       pgprot & _PAGE_GLOBAL   ? 'g' : 'l' );
+#endif		
+		DRM_SYSCTL_PRINT("\n");
+		for (i = vma->vm_start; i < vma->vm_end; i += PAGE_SIZE) {
+			pgd = pgd_offset(vma->vm_mm, i);
+			pmd = pmd_offset(pgd, i);
+			pte = pte_offset(pmd, i);
+			if (pte_present(*pte)) {
+				address = __pa(pte_page(*pte))
+					+ (i & (PAGE_SIZE-1));
+				DRM_SYSCTL_PRINT("      0x%08lx -> 0x%08lx"
+					       " %c%c%c%c%c\n",
+					       i,
+					       address,
+					       pte_read(*pte)  ? 'r' : '-',
+					       pte_write(*pte) ? 'w' : '-',
+					       pte_exec(*pte)  ? 'x' : '-',
+					       pte_dirty(*pte) ? 'd' : '-',
+					       pte_young(*pte) ? 'a' : '-' );
+			} else {
+				DRM_SYSCTL_PRINT("      0x%08lx\n", i);
+			}
+		}
+	}
+	
+	SYSCTL_OUT(req, "", 1);
+	return 0;
+}
+
+static int drm_vma_info SYSCTL_HANDLER_ARGS
+{
+	drm_device_t *dev = arg1;
+	int	     ret;
+
+	lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, curproc);
+	ret = _drm_vma_info(oidp, arg1, arg2, req);
+	lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc);
+	return ret;
+}
+#endif
+
+
+#if DRM_DMA_HISTOGRAM
+static int _drm_histo_info SYSCTL_HANDLER_ARGS
+{
+	drm_device_t	 *dev = arg1;
+	drm_device_dma_t *dma = dev->dma;
+	int		 i;
+	unsigned long	 slot_value = DRM_DMA_HISTOGRAM_INITIAL;
+	unsigned long	 prev_value = 0;
+	drm_buf_t	 *buffer;
+	char		 buf[128];
+	int              error;
+
+	DRM_SYSCTL_PRINT("general statistics:\n");
+	DRM_SYSCTL_PRINT("total	 %10u\n", atomic_read(&dev->histo.total));
+	DRM_SYSCTL_PRINT("open	 %10u\n", atomic_read(&dev->total_open));
+	DRM_SYSCTL_PRINT("close	 %10u\n", atomic_read(&dev->total_close));
+	DRM_SYSCTL_PRINT("ioctl	 %10u\n", atomic_read(&dev->total_ioctl));
+	DRM_SYSCTL_PRINT("irq	 %10u\n", atomic_read(&dev->total_irq));
+	DRM_SYSCTL_PRINT("ctx	 %10u\n", atomic_read(&dev->total_ctx));
+	
+	DRM_SYSCTL_PRINT("\nlock statistics:\n");
+	DRM_SYSCTL_PRINT("locks	 %10u\n", atomic_read(&dev->total_locks));
+	DRM_SYSCTL_PRINT("unlocks	 %10u\n", atomic_read(&dev->total_unlocks));
+	DRM_SYSCTL_PRINT("contends %10u\n", atomic_read(&dev->total_contends));
+	DRM_SYSCTL_PRINT("sleeps	 %10u\n", atomic_read(&dev->total_sleeps));
+
+
+	if (dma) {
+		DRM_SYSCTL_PRINT("\ndma statistics:\n");
+		DRM_SYSCTL_PRINT("prio	 %10u\n",
+			       atomic_read(&dma->total_prio));
+		DRM_SYSCTL_PRINT("bytes	 %10u\n",
+			       atomic_read(&dma->total_bytes));
+		DRM_SYSCTL_PRINT("dmas	 %10u\n",
+			       atomic_read(&dma->total_dmas));
+		DRM_SYSCTL_PRINT("missed:\n");
+		DRM_SYSCTL_PRINT("  dma	 %10u\n",
+			       atomic_read(&dma->total_missed_dma));
+		DRM_SYSCTL_PRINT("  lock	 %10u\n",
+			       atomic_read(&dma->total_missed_lock));
+		DRM_SYSCTL_PRINT("  free	 %10u\n",
+			       atomic_read(&dma->total_missed_free));
+		DRM_SYSCTL_PRINT("  sched	 %10u\n",
+			       atomic_read(&dma->total_missed_sched));
+		DRM_SYSCTL_PRINT("tried	 %10u\n",
+			       atomic_read(&dma->total_tried));
+		DRM_SYSCTL_PRINT("hit	 %10u\n",
+			       atomic_read(&dma->total_hit));
+		DRM_SYSCTL_PRINT("lost	 %10u\n",
+			       atomic_read(&dma->total_lost));
+		
+		buffer = dma->next_buffer;
+		if (buffer) {
+			DRM_SYSCTL_PRINT("next_buffer %7d\n", buffer->idx);
+		} else {
+			DRM_SYSCTL_PRINT("next_buffer    none\n");
+		}
+		buffer = dma->this_buffer;
+		if (buffer) {
+			DRM_SYSCTL_PRINT("this_buffer %7d\n", buffer->idx);
+		} else {
+			DRM_SYSCTL_PRINT("this_buffer    none\n");
+		}
+	}
+	
+
+	DRM_SYSCTL_PRINT("\nvalues:\n");
+	if (dev->lock.hw_lock) {
+		DRM_SYSCTL_PRINT("lock	       0x%08x\n",
+			       dev->lock.hw_lock->lock);
+	} else {
+		DRM_SYSCTL_PRINT("lock		     none\n");
+	}
+	DRM_SYSCTL_PRINT("context_flag   0x%08x\n", dev->context_flag);
+	DRM_SYSCTL_PRINT("interrupt_flag 0x%08x\n", dev->interrupt_flag);
+	DRM_SYSCTL_PRINT("dma_flag       0x%08x\n", dev->dma_flag);
+
+	DRM_SYSCTL_PRINT("queue_count    %10d\n",	 dev->queue_count);
+	DRM_SYSCTL_PRINT("last_context   %10d\n",	 dev->last_context);
+	DRM_SYSCTL_PRINT("last_switch    %10u\n",	 dev->last_switch);
+	DRM_SYSCTL_PRINT("last_checked   %10d\n",	 dev->last_checked);
+		
+	
+	DRM_SYSCTL_PRINT("\n		       q2d	  d2c	     c2f"
+		       "	q2c	   q2f	      dma	 sch"
+		       "	ctx	  lacq	     lhld\n\n");
+	for (i = 0; i < DRM_DMA_HISTOGRAM_SLOTS; i++) {
+		DRM_SYSCTL_PRINT("%s %10lu %10u %10u %10u %10u %10u"
+			       " %10u %10u %10u %10u %10u\n",
+			       i == DRM_DMA_HISTOGRAM_SLOTS - 1 ? ">=" : "< ",
+			       i == DRM_DMA_HISTOGRAM_SLOTS - 1
+			       ? prev_value : slot_value ,
+			       
+			       atomic_read(&dev->histo
+					   .queued_to_dispatched[i]),
+			       atomic_read(&dev->histo
+					   .dispatched_to_completed[i]),
+			       atomic_read(&dev->histo
+					   .completed_to_freed[i]),
+			       
+			       atomic_read(&dev->histo
+					   .queued_to_completed[i]),
+			       atomic_read(&dev->histo
+					   .queued_to_freed[i]),
+			       atomic_read(&dev->histo.dma[i]),
+			       atomic_read(&dev->histo.schedule[i]),
+			       atomic_read(&dev->histo.ctx[i]),
+			       atomic_read(&dev->histo.lacq[i]),
+			       atomic_read(&dev->histo.lhld[i]));
+		prev_value = slot_value;
+		slot_value = DRM_DMA_HISTOGRAM_NEXT(slot_value);
+	}
+	SYSCTL_OUT(req, "", 1);
+	return 0;
+}
+
+static int drm_histo_info SYSCTL_HANDLER_ARGS
+{
+	drm_device_t *dev = arg1;
+	int	     ret;
+
+	lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, curproc);
+	ret = _drm_histo_info(oidp, arg1, arg2, req);
+	lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc);
+	return ret;
+}
+#endif
diff --git a/bsd/drm/vm.c b/bsd/drm/vm.c
new file mode 100644
index 00000000..9c457fca
--- /dev/null
+++ b/bsd/drm/vm.c
@@ -0,0 +1,104 @@
+/* vm.c -- Memory mapping for DRM -*- c -*-
+ * Created: Mon Jan  4 08:58:31 1999 by faith@precisioninsight.com
+ * Revised: Fri Aug 20 22:48:11 1999 by faith@precisioninsight.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * 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
+ * PRECISION INSIGHT 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/vm.c,v 1.7 1999/08/21 02:48:34 faith Exp $
+ * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/vm.c,v 1.1 1999/09/25 14:38:02 dawes Exp $
+ *
+ */
+
+#define __NO_VERSION__
+#include "drmP.h"
+
+#include <vm/vm.h>
+#include <vm/pmap.h>
+
+static int drm_dma_mmap(dev_t kdev, vm_offset_t offset, int prot)
+{
+	drm_device_t	 *dev	 = kdev->si_drv1;
+	drm_device_dma_t *dma	 = dev->dma;
+	unsigned long	 physical;
+	unsigned long	 page;
+
+	if (!dma)		   return -1; /* Error */
+	if (!dma->pagelist)	   return -1; /* Nothing allocated */
+
+	page	 = offset >> PAGE_SHIFT;
+	physical = dma->pagelist[page];
+
+	DRM_DEBUG("0x%08x (page %lu) => 0x%08lx\n", offset, page, physical);
+	return atop(physical);
+}
+
+int drm_mmap(dev_t kdev, vm_offset_t offset, int prot)
+{
+	drm_device_t	*dev	= kdev->si_drv1;
+	drm_map_t	*map	= NULL;
+	int		i;
+	
+	/* DRM_DEBUG("offset = 0x%x\n", offset); */
+
+	if (dev->dma
+	    && offset >= 0
+	    && offset < ptoa(dev->dma->page_count))
+		return drm_dma_mmap(kdev, offset, prot);
+
+				/* A sequential search of a linked list is
+				   fine here because: 1) there will only be
+				   about 5-10 entries in the list and, 2) a
+				   DRI client only has to do this mapping
+				   once, so it doesn't have to be optimized
+				   for performance, even if the list was a
+				   bit longer. */
+	for (i = 0; i < dev->map_count; i++) {
+		map = dev->maplist[i];
+		/* DRM_DEBUG("considering 0x%x..0x%x\n", map->offset, map->offset + map->size - 1); */
+		if (offset >= map->offset
+		    && offset < map->offset + map->size) break;
+	}
+	
+	if (i >= dev->map_count) {
+		DRM_DEBUG("can't find map\n");
+		return -1;
+	}
+	if (!map || ((map->flags&_DRM_RESTRICTED) && suser(curproc))) {
+		DRM_DEBUG("restricted map\n");
+		return -1;
+	}
+
+	switch (map->type) {
+	case _DRM_FRAME_BUFFER:
+	case _DRM_REGISTERS:
+	case _DRM_AGP:
+		return atop(offset);
+	case _DRM_SHM:
+		return atop(vtophys(offset));
+	default:
+		return -1;	/* This should never happen. */
+	}
+	DRM_DEBUG("bailing out\n");
+	
+	return -1;
+}
diff --git a/bsd/drmP.h b/bsd/drmP.h
new file mode 100644
index 00000000..863836a6
--- /dev/null
+++ b/bsd/drmP.h
@@ -0,0 +1,708 @@
+/* drmP.h -- Private header for Direct Rendering Manager -*- 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.
+ * 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
+ * PRECISION INSIGHT 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/linux/drm/kernel/drmP.h,v 1.1 1999/09/25 14:37:59 dawes Exp $
+ * 
+ */
+
+#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>
+#include <sys/taskqueue.h>
+
+#ifdef DRM_AGP
+#include <pci/agpvar.h>
+#endif
+
+#include "drm.h"
+
+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)
+
+/* Fake this */
+static __inline u_int32_t
+test_and_set_bit(int b, volatile u_int32_t *p)
+{
+	u_int32_t m = 1<<b;
+	u_int32_t r = *p & m;
+	*p |= m;
+	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]) {
+	    for (;;) {
+		if (p[b >> 5] & (1 << (b & 0x1f)))
+		    return b;
+		b++;
+	    }
+	}
+    }
+    return max;
+}
+
+#define spldrm()		spltty()
+
+#define memset(p, v, s)		bzero(p, s)
+
+/*
+ * Software interrupts for DMA pipe feeding. The FreeBSD kernel apis
+ * are severely lacking here.
+ */
+#define SWI_DRI		(SWI_VM+2)
+
+#define DRM_DEBUG_CODE 2	  /* Include debugging code (if > 1, then
+				     also include looping detection. */
+#define DRM_DMA_HISTOGRAM 1	  /* Make histogram of DMA latency. */
+
+#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_AGPLISTS  15
+#define DRM_MEM_TOTALAGP  16
+#define DRM_MEM_BOUNDAGP  17
+#define DRM_MEM_CTXBITMAP 18
+
+#define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
+
+				/* Backward compatibility section */
+#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)
+
+
+
+				/* 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);					  \
+	} 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]))
+#define DRM_MIN(a,b) ((a)<(b)?(a):(b))
+#define DRM_MAX(a,b) ((a)>(b)?(a):(b))
+
+#define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
+#define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
+#define DRM_WAITCOUNT(dev,idx) DRM_BUFCOUNT(&dev->queuelist[idx]->waitlist)
+
+typedef struct drm_ioctl_desc {
+	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 {
+	drm_magic_t	       magic;
+	struct drm_file	       *priv;
+	struct drm_magic_entry *next;
+} drm_magic_entry_t;
+
+typedef struct drm_magic_head {
+       struct drm_magic_entry *head;
+       struct drm_magic_entry *tail;
+} drm_magic_head_t;
+
+typedef struct drm_vma_entry {
+	struct vm_area_struct *vma;
+	struct drm_vma_entry  *next;
+	pid_t		      pid;
+} drm_vma_entry_t;
+
+typedef 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		     */
+	int		  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  */
+	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		     */
+
+	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		     */
+#endif
+} drm_buf_t;
+
+#if DRM_DMA_HISTOGRAM
+#define DRM_DMA_HISTOGRAM_SLOTS		  9
+#define DRM_DMA_HISTOGRAM_INITIAL	 10
+#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];
+	atomic_t	  lacq[DRM_DMA_HISTOGRAM_SLOTS];
+	atomic_t	  lhld[DRM_DMA_HISTOGRAM_SLOTS];
+} drm_histogram_t;
+#endif
+
+				/* bufs is one longer than it has to be */
+typedef struct drm_waitlist {
+	int		  count;	/* Number of possible buffers	   */
+	drm_buf_t	  **bufs;	/* List of pointers to buffers	   */
+	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_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   */
+	int		  low_mark;    /* Low water mark		   */
+	int		  high_mark;   /* High water mark		   */
+	atomic_t	  wfh;	       /* If waiting for high mark	   */
+} drm_freelist_t;
+
+typedef struct drm_buf_entry {
+	int		  buf_size;
+	int		  buf_count;
+	drm_buf_t	  *buflist;
+	int		  seg_count;
+	int		  page_order;
+	unsigned long	  *seglist;
+
+	drm_freelist_t	  freelist;
+} drm_buf_entry_t;
+
+typedef struct drm_hw_lock {
+	__volatile__ unsigned int lock;
+	char			  padding[60]; /* Pad to cache line */
+} drm_hw_lock_t;
+
+typedef TAILQ_HEAD(drm_file_list, drm_file) drm_file_list_t;
+typedef struct drm_file {
+	TAILQ_ENTRY(drm_file) link;
+	int		  authenticated;
+	int		  minor;
+	pid_t		  pid;
+	uid_t		  uid;
+	int		  refs;
+	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  */
+	atomic_t	  block_write;	/* Queue blocked for writes	    */
+	int		  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	    */
+	drm_ctx_flags_t	  flags;	/* Context preserving and 2D-only   */
+	drm_waitlist_t	  waitlist;	/* Pending buffers		    */
+	int		  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	   */
+	unsigned long	  lock_time;	/* Time of last lock in jiffies	   */
+} drm_lock_data_t;
+
+typedef struct drm_device_dma {
+				/* 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 */
+	atomic_t	  total_missed_sched;/* Missed drm_dma_schedule	    */
+
+	atomic_t	  total_tried;	/* Tried next_buffer		    */
+	atomic_t	  total_hit;	/* Sent next_buffer		    */
+	atomic_t	  total_lost;	/* Lost interrupt		    */
+
+	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		  page_count;
+	vm_offset_t	  *pagelist;
+	unsigned long	  byte_count;
+	enum {
+	   _DRM_DMA_USE_AGP = 0x01
+	} 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  */
+} drm_device_dma_t;
+
+#ifdef DRM_AGP
+
+typedef struct drm_agp_mem {
+	void               *handle;
+	unsigned long      bound; /* address */
+	int                pages;
+	struct drm_agp_mem *prev;
+	struct drm_agp_mem *next;
+} drm_agp_mem_t;
+
+typedef struct drm_agp_head {
+	device_t	   agpdev;
+	struct agp_info    info;
+	const char         *chipset;
+	drm_agp_mem_t      *memory;
+	unsigned long      mode;
+	int                enabled;
+	int                acquired;
+	unsigned long      base;
+   	int 		   agp_mtrr;
+} drm_agp_head_t;
+
+#endif
+
+typedef 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			   */
+
+				/* 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   */
+
+				/* 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;
+
+				/* 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   */
+	int		  map_count;	/* Number of mappable regions	   */
+
+	drm_vma_entry_t	  *vmalist;	/* List of vmas (for debugging)	   */
+	drm_lock_data_t	  lock;		/* Information on hardware lock	   */
+
+				/* DMA queues (contexts) */
+	int		  queue_count;	/* Number of active DMA queues	   */
+	int		  queue_reserved; /* Number of reserved DMA queues */
+	int		  queue_slots;	/* Actual length of queuelist	   */
+	drm_queue_t	  **queuelist;	/* Vector of pointers to DMA queues */
+	drm_device_dma_t  *dma;		/* Optional pointer for DMA support */
+
+				/* Context support */
+	struct resource   *irq;		/* Interrupt used by board	   */
+	void		  *irqh;	/* Handle from bus_setup_intr      */
+	__volatile__ int  context_flag;	 /* Context swapping flag	   */
+	__volatile__ int  interrupt_flag;/* Interruption handler flag	   */
+	__volatile__ int  dma_flag;	 /* DMA dispatch flag		   */
+	struct callout	  timer;	/* Timer for delaying ctx switch   */
+	int		  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  */
+	struct task	  task;
+	struct timespec	  ctx_start;
+	struct timespec	  lck_start;
+#if DRM_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 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           */
+
+				/* Sysctl support */
+	struct drm_sysctl_info *sysctl;
+
+#ifdef DRM_AGP
+	drm_agp_head_t    *agp;
+#endif
+	u_int32_t	  *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);
+#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);
+
+				/* Memory management support (memory.c) */
+extern void	     drm_mem_init(void);
+extern int	     drm_mem_info 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);
+#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;
+#endif
+#endif
+#endif
diff --git a/bsd/gamma/Makefile b/bsd/gamma/Makefile
new file mode 100644
index 00000000..dd611038
--- /dev/null
+++ b/bsd/gamma/Makefile
@@ -0,0 +1,15 @@
+# $FreeBSD$
+
+KMOD	= gamma
+SRCS    = gamma_drv.c gamma_dma.c
+SRCS   += device_if.h bus_if.h pci_if.h
+CFLAGS += ${DEBUG_FLAGS} -I..
+KERN    = /usr/src/sys
+
+@:
+	ln -sf /sys @
+
+machine:
+	ln -sf /sys/i386/include machine
+
+.include "/usr/src/sys/conf/kmod.mk"
diff --git a/bsd/gamma/gamma_dma.c b/bsd/gamma/gamma_dma.c
new file mode 100644
index 00000000..177440db
--- /dev/null
+++ b/bsd/gamma/gamma_dma.c
@@ -0,0 +1,802 @@
+/* gamma_dma.c -- DMA support for GMX 2000 -*- c -*-
+ * Created: Fri Mar 19 14:30:16 1999 by faith@precisioninsight.com
+ * Revised: Thu Sep 16 12:55:37 1999 by faith@precisioninsight.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * 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
+ * PRECISION INSIGHT 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/gamma_dma.c,v 1.9 1999/09/16 16:56:18 faith Exp $
+ * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/gamma_dma.c,v 1.1 1999/09/25 14:38:00 dawes Exp $
+ *
+ */
+
+#define __NO_VERSION__
+#include "drmP.h"
+#include "gamma_drv.h"
+
+#include <machine/bus.h>
+#include <machine/resource.h>
+#include <sys/rman.h>
+#include <vm/vm.h>
+#include <vm/pmap.h>
+
+/* WARNING!!! MAGIC NUMBER!!!  The number of regions already added to the
+   kernel must be specified here.  Currently, the number is 2.	This must
+   match the order the X server uses for instantiating register regions ,
+   or must be passed in a new ioctl. */
+#define GAMMA_REG(reg)						   \
+	(2							   \
+	 + ((reg < 0x1000)					   \
+	    ? 0							   \
+	    : ((reg < 0x10000) ? 1 : ((reg < 0x11000) ? 2 : 3))))
+
+#define GAMMA_OFF(reg)						   \
+	((reg < 0x1000)						   \
+	 ? reg							   \
+	 : ((reg < 0x10000)					   \
+	    ? (reg - 0x1000)					   \
+	    : ((reg < 0x11000)					   \
+	       ? (reg - 0x10000)				   \
+	       : (reg - 0x11000))))
+
+#define GAMMA_BASE(reg)	 ((unsigned long)dev->maplist[GAMMA_REG(reg)]->handle)
+#define GAMMA_ADDR(reg)	 (GAMMA_BASE(reg) + GAMMA_OFF(reg))
+#define GAMMA_DEREF(reg) *(__volatile__ int *)GAMMA_ADDR(reg)
+#define GAMMA_READ(reg)	 GAMMA_DEREF(reg)
+#define GAMMA_WRITE(reg,val) do { GAMMA_DEREF(reg) = val; } while (0)
+
+#define GAMMA_BROADCASTMASK    0x9378
+#define GAMMA_COMMANDINTENABLE 0x0c48
+#define GAMMA_DMAADDRESS       0x0028
+#define GAMMA_DMACOUNT	       0x0030
+#define GAMMA_FILTERMODE       0x8c00
+#define GAMMA_GCOMMANDINTFLAGS 0x0c50
+#define GAMMA_GCOMMANDMODE     0x0c40
+#define GAMMA_GCOMMANDSTATUS   0x0c60
+#define GAMMA_GDELAYTIMER      0x0c38
+#define GAMMA_GDMACONTROL      0x0060
+#define GAMMA_GINTENABLE       0x0808
+#define GAMMA_GINTFLAGS	       0x0810
+#define GAMMA_INFIFOSPACE      0x0018
+#define GAMMA_OUTFIFOWORDS     0x0020
+#define GAMMA_OUTPUTFIFO       0x2000
+#define GAMMA_SYNC	       0x8c40
+#define GAMMA_SYNC_TAG	       0x0188
+
+static __inline void gamma_dma_dispatch(drm_device_t *dev,
+					vm_offset_t address,
+					vm_size_t length)
+{
+	GAMMA_WRITE(GAMMA_DMAADDRESS, vtophys(address));
+	while (GAMMA_READ(GAMMA_GCOMMANDSTATUS) != 4)
+		;
+	GAMMA_WRITE(GAMMA_DMACOUNT, length / 4);
+}
+
+static __inline void gamma_dma_quiescent(drm_device_t *dev)
+{
+	while (GAMMA_READ(GAMMA_DMACOUNT))
+		;
+	while (GAMMA_READ(GAMMA_INFIFOSPACE) < 3)
+		;
+	GAMMA_WRITE(GAMMA_BROADCASTMASK, 3);
+	GAMMA_WRITE(GAMMA_FILTERMODE, 1 << 10);
+	GAMMA_WRITE(GAMMA_SYNC, 0);
+	
+				/* Read from first MX */
+	do {
+		while (!GAMMA_READ(GAMMA_OUTFIFOWORDS))
+			;
+	} while (GAMMA_READ(GAMMA_OUTPUTFIFO) != GAMMA_SYNC_TAG);
+	
+
+				/* Read from second MX */
+	do {
+		while (!GAMMA_READ(GAMMA_OUTFIFOWORDS + 0x10000))
+			;
+	} while (GAMMA_READ(GAMMA_OUTPUTFIFO + 0x10000) != GAMMA_SYNC_TAG);
+}
+
+static __inline void gamma_dma_ready(drm_device_t *dev)
+{
+	while (GAMMA_READ(GAMMA_DMACOUNT))
+		;
+}
+
+static __inline int gamma_dma_is_ready(drm_device_t *dev)
+{
+	return !GAMMA_READ(GAMMA_DMACOUNT);
+}
+
+static void gamma_dma_service(void *arg)
+{
+	drm_device_t	 *dev = (drm_device_t *)arg;
+	drm_device_dma_t *dma = dev->dma;
+	
+	atomic_inc(&dev->total_irq);
+	GAMMA_WRITE(GAMMA_GDELAYTIMER, 0xc350/2); /* 0x05S */
+	GAMMA_WRITE(GAMMA_GCOMMANDINTFLAGS, 8);
+	GAMMA_WRITE(GAMMA_GINTFLAGS, 0x2001);
+	if (gamma_dma_is_ready(dev)) {
+				/* Free previous buffer */
+		if (test_and_set_bit(0, &dev->dma_flag)) {
+			atomic_inc(&dma->total_missed_free);
+			return;
+		}
+		if (dma->this_buffer) {
+			drm_free_buffer(dev, dma->this_buffer);
+			dma->this_buffer = NULL;
+		}
+		clear_bit(0, &dev->dma_flag);
+
+#if 0
+				/* Dispatch new buffer */
+		queue_task(&dev->tq, &tq_immediate);
+		mark_bh(IMMEDIATE_BH);
+#endif
+	}
+}
+
+/* Only called by gamma_dma_schedule. */
+static int gamma_do_dma(drm_device_t *dev, int locked)
+{
+	unsigned long	 address;
+	unsigned long	 length;
+	drm_buf_t	 *buf;
+	int		 retcode = 0;
+	drm_device_dma_t *dma = dev->dma;
+#if DRM_DMA_HISTOGRAM
+	struct timespec	 dma_start, dma_stop;
+#endif
+
+	if (test_and_set_bit(0, &dev->dma_flag)) {
+		atomic_inc(&dma->total_missed_dma);
+		return EBUSY;
+	}
+	
+#if DRM_DMA_HISTOGRAM
+	getnanotime(&dma_start);
+#endif
+
+	if (!dma->next_buffer) {
+		DRM_ERROR("No next_buffer\n");
+		clear_bit(0, &dev->dma_flag);
+		return EINVAL;
+	}
+
+	buf	= dma->next_buffer;
+	address = (unsigned long)buf->address;
+	length	= buf->used;
+
+	DRM_DEBUG("context %d, buffer %d (%ld bytes)\n",
+		  buf->context, buf->idx, length);
+
+	if (buf->list == DRM_LIST_RECLAIM) {
+		drm_clear_next_buffer(dev);
+		drm_free_buffer(dev, buf);
+		clear_bit(0, &dev->dma_flag);
+		return EINVAL;
+	}
+
+	if (!length) {
+		DRM_ERROR("0 length buffer\n");
+		drm_clear_next_buffer(dev);
+		drm_free_buffer(dev, buf);
+		clear_bit(0, &dev->dma_flag);
+		return 0;
+	}
+	
+	if (!gamma_dma_is_ready(dev)) {
+		clear_bit(0, &dev->dma_flag);
+		return EBUSY;
+	}
+
+	if (buf->while_locked) {
+		if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
+			DRM_ERROR("Dispatching buffer %d from pid %d"
+				  " \"while locked\", but no lock held\n",
+				  buf->idx, buf->pid);
+		}
+	} else {
+		if (!locked && !drm_lock_take(&dev->lock.hw_lock->lock,
+					      DRM_KERNEL_CONTEXT)) {
+			atomic_inc(&dma->total_missed_lock);
+			clear_bit(0, &dev->dma_flag);
+			return EBUSY;
+		}
+	}
+
+	if (dev->last_context != buf->context
+	    && !(dev->queuelist[buf->context]->flags
+		 & _DRM_CONTEXT_PRESERVED)) {
+				/* PRE: dev->last_context != buf->context */
+		if (drm_context_switch(dev, dev->last_context, buf->context)) {
+			drm_clear_next_buffer(dev);
+			drm_free_buffer(dev, buf);
+		}
+		retcode = EBUSY;
+		goto cleanup;
+			
+				/* POST: we will wait for the context
+				   switch and will dispatch on a later call
+				   when dev->last_context == buf->context.
+				   NOTE WE HOLD THE LOCK THROUGHOUT THIS
+				   TIME! */
+	}
+
+	drm_clear_next_buffer(dev);
+	buf->pending	 = 1;
+	buf->waiting	 = 0;
+	buf->list	 = DRM_LIST_PEND;
+#if DRM_DMA_HISTOGRAM
+	getnanotime(&buf->time_dispatched);
+#endif
+
+	gamma_dma_dispatch(dev, address, length);
+	drm_free_buffer(dev, dma->this_buffer);
+	dma->this_buffer = buf;
+
+	atomic_add(length, &dma->total_bytes);
+	atomic_inc(&dma->total_dmas);
+
+	if (!buf->while_locked && !dev->context_flag && !locked) {
+		if (drm_lock_free(dev, &dev->lock.hw_lock->lock,
+				  DRM_KERNEL_CONTEXT)) {
+			DRM_ERROR("\n");
+		}
+	}
+cleanup:
+
+	clear_bit(0, &dev->dma_flag);
+
+#if DRM_DMA_HISTOGRAM
+	getnanotime(&dma_stop);
+	timespecsub(&dma_stop, &dma_start);
+	atomic_inc(&dev->histo.ctx[drm_histogram_slot(&dma_stop)]);
+#endif
+
+	return retcode;
+}
+
+static void gamma_dma_schedule_wrapper(void *dev)
+{
+	gamma_dma_schedule(dev, 0);
+}
+
+int gamma_dma_schedule(drm_device_t *dev, int locked)
+{
+	int		 next;
+	drm_queue_t	 *q;
+	drm_buf_t	 *buf;
+	int		 retcode   = 0;
+	int		 processed = 0;
+	int		 missed;
+	int		 expire	   = 20;
+	drm_device_dma_t *dma	   = dev->dma;
+#if DRM_DMA_HISTOGRAM
+	struct timespec	 schedule_start;
+#endif
+
+	if (test_and_set_bit(0, &dev->interrupt_flag)) {
+				/* Not reentrant */
+		atomic_inc(&dma->total_missed_sched);
+		return EBUSY;
+	}
+	missed = atomic_read(&dma->total_missed_sched);
+
+#if DRM_DMA_HISTOGRAM
+	getnanotime(&schedule_start);
+#endif
+
+again:
+	if (dev->context_flag) {
+		clear_bit(0, &dev->interrupt_flag);
+		return EBUSY;
+	}
+	if (dma->next_buffer) {
+				/* Unsent buffer that was previously
+				   selected, but that couldn't be sent
+				   because the lock could not be obtained
+				   or the DMA engine wasn't ready.  Try
+				   again. */
+		atomic_inc(&dma->total_tried);
+		if (!(retcode = gamma_do_dma(dev, locked))) {
+			atomic_inc(&dma->total_hit);
+			++processed;
+		}
+	} else {
+		do {
+			next = drm_select_queue(dev,
+						gamma_dma_schedule_wrapper);
+			if (next >= 0) {
+				q   = dev->queuelist[next];
+				buf = drm_waitlist_get(&q->waitlist);
+				dma->next_buffer = buf;
+				dma->next_queue	 = q;
+				if (buf && buf->list == DRM_LIST_RECLAIM) {
+					drm_clear_next_buffer(dev);
+					drm_free_buffer(dev, buf);
+				}
+			}
+		} while (next >= 0 && !dma->next_buffer);
+		if (dma->next_buffer) {
+			if (!(retcode = gamma_do_dma(dev, locked))) {
+				++processed;
+			}
+		}
+	}
+
+	if (--expire) {
+		if (missed != atomic_read(&dma->total_missed_sched)) {
+			atomic_inc(&dma->total_lost);
+			if (gamma_dma_is_ready(dev)) goto again;
+		}
+		if (processed && gamma_dma_is_ready(dev)) {
+			atomic_inc(&dma->total_lost);
+			processed = 0;
+			goto again;
+		}
+	}
+	
+	clear_bit(0, &dev->interrupt_flag);
+	
+#if DRM_DMA_HISTOGRAM
+	{
+		struct timespec ts;
+		getnanotime(&ts);
+		timespecsub(&ts, &schedule_start);
+		atomic_inc(&dev->histo.schedule[drm_histogram_slot(&ts)]);
+	}
+#endif
+	return retcode;
+}
+
+static int gamma_dma_priority(drm_device_t *dev, drm_dma_t *d)
+{
+	struct proc	  *p = curproc;
+	unsigned long	  address;
+	unsigned long	  length;
+	int		  must_free = 0;
+	int		  retcode   = 0;
+	int		  i;
+	int		  idx;
+	drm_buf_t	  *buf;
+	drm_buf_t	  *last_buf = NULL;
+	drm_device_dma_t  *dma	    = dev->dma;
+	static int	  never;
+
+				/* Turn off interrupt handling */
+	while (test_and_set_bit(0, &dev->interrupt_flag)) {
+		retcode = tsleep(&never, PZERO|PCATCH, "gamp1", 1);
+		if (retcode)
+			return retcode;
+	}
+	if (!(d->flags & _DRM_DMA_WHILE_LOCKED)) {
+		while (!drm_lock_take(&dev->lock.hw_lock->lock,
+				      DRM_KERNEL_CONTEXT)) {
+			retcode = tsleep(&never, PZERO|PCATCH, "gamp2", 1);
+			if (retcode)
+				return retcode;
+		}
+		++must_free;
+	}
+	atomic_inc(&dma->total_prio);
+
+	for (i = 0; i < d->send_count; i++) {
+		idx = d->send_indices[i];
+		if (idx < 0 || idx >= dma->buf_count) {
+			DRM_ERROR("Index %d (of %d max)\n",
+				  d->send_indices[i], dma->buf_count - 1);
+			continue;
+		}
+		buf = dma->buflist[ idx ];
+		if (buf->pid != p->p_pid) {
+			DRM_ERROR("Process %d using buffer owned by %d\n",
+				  p->p_pid, buf->pid);
+			retcode = EINVAL;
+			goto cleanup;
+		}
+		if (buf->list != DRM_LIST_NONE) {
+			DRM_ERROR("Process %d using %d's buffer on list %d\n",
+				  p->p_pid, buf->pid, buf->list);
+			retcode = EINVAL;
+			goto cleanup;
+		}
+				/* This isn't a race condition on
+				   buf->list, since our concern is the
+				   buffer reclaim during the time the
+				   process closes the /dev/drm? handle, so
+				   it can't also be doing DMA. */
+		buf->list	  = DRM_LIST_PRIO;
+		buf->used	  = d->send_sizes[i];
+		buf->context	  = d->context;
+		buf->while_locked = d->flags & _DRM_DMA_WHILE_LOCKED;
+		address		  = (unsigned long)buf->address;
+		length		  = buf->used;
+		if (!length) {
+			DRM_ERROR("0 length buffer\n");
+		}
+		if (buf->pending) {
+			DRM_ERROR("Sending pending buffer:"
+				  " buffer %d, offset %d\n",
+				  d->send_indices[i], i);
+			retcode = EINVAL;
+			goto cleanup;
+		}
+		if (buf->waiting) {
+			DRM_ERROR("Sending waiting buffer:"
+				  " buffer %d, offset %d\n",
+				  d->send_indices[i], i);
+			retcode = EINVAL;
+			goto cleanup;
+		}
+		buf->pending = 1;
+		
+		if (dev->last_context != buf->context
+		    && !(dev->queuelist[buf->context]->flags
+			 & _DRM_CONTEXT_PRESERVED)) {
+			atomic_inc(&dev->context_wait);
+				/* PRE: dev->last_context != buf->context */
+			drm_context_switch(dev, dev->last_context,
+					   buf->context);
+				/* POST: we will wait for the context
+				   switch and will dispatch on a later call
+				   when dev->last_context == buf->context.
+				   NOTE WE HOLD THE LOCK THROUGHOUT THIS
+				   TIME! */
+			retcode = tsleep(&dev->context_wait,  PZERO|PCATCH,
+				       "gamctx", 0);
+			atomic_dec(&dev->context_wait);
+			if (retcode)
+				goto cleanup;
+			if (dev->last_context != buf->context) {
+				DRM_ERROR("Context mismatch: %d %d\n",
+					  dev->last_context,
+					  buf->context);
+			}
+		}
+
+#if DRM_DMA_HISTOGRAM
+		getnanotime(&buf->time_queued);
+		buf->time_dispatched = buf->time_queued;
+#endif
+		gamma_dma_dispatch(dev, address, length);
+		atomic_add(length, &dma->total_bytes);
+		atomic_inc(&dma->total_dmas);
+		
+		if (last_buf) {
+			drm_free_buffer(dev, last_buf);
+		}
+		last_buf = buf;
+	}
+
+
+cleanup:
+	if (last_buf) {
+		gamma_dma_ready(dev);
+		drm_free_buffer(dev, last_buf);
+	}
+	
+	if (must_free && !dev->context_flag) {
+		if (drm_lock_free(dev, &dev->lock.hw_lock->lock,
+				  DRM_KERNEL_CONTEXT)) {
+			DRM_ERROR("\n");
+		}
+	}
+	clear_bit(0, &dev->interrupt_flag);
+	return retcode;
+}
+
+static int gamma_dma_send_buffers(drm_device_t *dev, drm_dma_t *d)
+{
+	struct proc	  *p = curproc;
+	drm_buf_t	  *last_buf = NULL;
+	int		  retcode   = 0;
+	drm_device_dma_t  *dma	    = dev->dma;
+
+	
+	if ((retcode = drm_dma_enqueue(dev, d))) {
+		return retcode;
+	}
+	
+	gamma_dma_schedule(dev, 0);
+	
+	if (d->flags & _DRM_DMA_BLOCK) {
+		last_buf = dma->buflist[d->send_indices[d->send_count-1]];
+		atomic_inc(&last_buf->dma_wait);
+	}
+
+	if (d->flags & _DRM_DMA_BLOCK) {
+		DRM_DEBUG("%d waiting\n", p->p_pid);
+		for (;;) {
+			retcode = tsleep(&last_buf->dma_wait, PZERO|PCATCH,
+					 "gamdw", 0);
+			if (!last_buf->waiting
+			    && !last_buf->pending)
+				break; /* finished */
+			if (retcode)
+				break;
+		}
+			
+		DRM_DEBUG("%d running\n", p->p_pid);
+		atomic_dec(&last_buf->dma_wait);
+		if (!retcode
+		    || (last_buf->list==DRM_LIST_PEND && !last_buf->pending)) {
+			if (!last_buf->dma_wait) {
+				drm_free_buffer(dev, last_buf);
+			}
+		}
+		if (retcode) {
+			DRM_ERROR("ctx%d w%d p%d c%d i%d l%d %d/%d\n",
+				  d->context,
+				  last_buf->waiting,
+				  last_buf->pending,
+				  DRM_WAITCOUNT(dev, d->context),
+				  last_buf->idx,
+				  last_buf->list,
+				  last_buf->pid,
+				  p->p_pid);
+		}
+	}
+	return retcode;
+}
+
+int gamma_dma(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
+{
+	drm_device_t	  *dev	    = kdev->si_drv1;
+	drm_device_dma_t  *dma	    = dev->dma;
+	int		  retcode   = 0;
+	drm_dma_t	  d;
+
+	d = *(drm_dma_t *) data;
+	DRM_DEBUG("%d %d: %d send, %d req\n",
+		  p->p_pid, d.context, d.send_count, d.request_count);
+
+	if (d.context == DRM_KERNEL_CONTEXT || d.context >= dev->queue_slots) {
+		DRM_ERROR("Process %d using context %d\n",
+			  p->p_pid, d.context);
+		return EINVAL;
+	}
+	if (d.send_count < 0 || d.send_count > dma->buf_count) {
+		DRM_ERROR("Process %d trying to send %d buffers (of %d max)\n",
+			  p->p_pid, d.send_count, dma->buf_count);
+		return EINVAL;
+	}
+	if (d.request_count < 0 || d.request_count > dma->buf_count) {
+		DRM_ERROR("Process %d trying to get %d buffers (of %d max)\n",
+			  p->p_pid, d.request_count, dma->buf_count);
+		return EINVAL;
+	}
+
+	if (d.send_count) {
+		if (d.flags & _DRM_DMA_PRIORITY)
+			retcode = gamma_dma_priority(dev, &d);
+		else 
+			retcode = gamma_dma_send_buffers(dev, &d);
+	}
+
+	d.granted_count = 0;
+
+	if (!retcode && d.request_count) {
+		retcode = drm_dma_get_buffers(dev, &d);
+	}
+
+	DRM_DEBUG("%d returning, granted = %d\n",
+		  p->p_pid, d.granted_count);
+	*(drm_dma_t *) data = d;
+
+	return retcode;
+}
+
+int gamma_irq_install(drm_device_t *dev, int irq)
+{
+	int rid;
+	int retcode;
+
+	if (!irq)     return EINVAL;
+	
+	lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, curproc);
+	if (dev->irq) {
+		lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc);
+		return EBUSY;
+	}
+	lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc);
+	
+	DRM_DEBUG("%d\n", irq);
+
+	dev->context_flag     = 0;
+	dev->interrupt_flag   = 0;
+	dev->dma_flag	      = 0;
+	
+	dev->dma->next_buffer = NULL;
+	dev->dma->next_queue  = NULL;
+	dev->dma->this_buffer = NULL;
+
+#if 0
+	dev->tq.next	      = NULL;
+	dev->tq.sync	      = 0;
+	dev->tq.routine	      = gamma_dma_schedule_tq_wrapper;
+	dev->tq.data	      = dev;
+#endif
+				/* Before installing handler */
+	GAMMA_WRITE(GAMMA_GCOMMANDMODE, 0);
+	GAMMA_WRITE(GAMMA_GDMACONTROL, 0);
+	
+				/* Install handler */
+	rid = 0;
+	dev->irq = bus_alloc_resource(dev->device, SYS_RES_IRQ, &rid,
+				      0, ~0, 1, RF_SHAREABLE);
+	if (!dev->irq)
+		return ENOENT;
+
+	retcode = bus_setup_intr(dev->device, dev->irq, INTR_TYPE_TTY,
+				 gamma_dma_service, dev, &dev->irqh);
+	if (retcode) {
+		bus_release_resource(dev->device, SYS_RES_IRQ, 0, dev->irq);
+		dev->irq = 0;
+		return retcode;
+	}
+
+				/* After installing handler */
+	GAMMA_WRITE(GAMMA_GINTENABLE,	    0x2001);
+	GAMMA_WRITE(GAMMA_COMMANDINTENABLE, 0x0008);
+	GAMMA_WRITE(GAMMA_GDELAYTIMER,	   0x39090);
+	
+	return 0;
+}
+
+int gamma_irq_uninstall(drm_device_t *dev)
+{
+	if (!dev->irq)
+		return EINVAL;
+
+	DRM_DEBUG("%ld\n", rman_get_start(dev->irq));
+
+	GAMMA_WRITE(GAMMA_GDELAYTIMER,	    0);
+	GAMMA_WRITE(GAMMA_COMMANDINTENABLE, 0);
+	GAMMA_WRITE(GAMMA_GINTENABLE,	    0);
+
+	bus_teardown_intr(dev->device, dev->irq, dev->irqh);
+	bus_release_resource(dev->device, SYS_RES_IRQ, 0, dev->irq);
+	dev->irq = 0;
+	
+	return 0;
+}
+
+
+int gamma_control(dev_t kdev, u_long cmd, caddr_t data,
+		  int flags, struct proc *p)
+{
+	drm_device_t	*dev	= kdev->si_drv1;
+	drm_control_t	ctl;
+	int		retcode;
+	
+	ctl = *(drm_control_t *) data;
+	
+	switch (ctl.func) {
+	case DRM_INST_HANDLER:
+		if ((retcode = gamma_irq_install(dev, ctl.irq)))
+			return retcode;
+		break;
+	case DRM_UNINST_HANDLER:
+		if ((retcode = gamma_irq_uninstall(dev)))
+			return retcode;
+		break;
+	default:
+		return EINVAL;
+	}
+	return 0;
+}
+
+int gamma_lock(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
+{
+	drm_device_t	  *dev	  = kdev->si_drv1;
+	int		  ret	= 0;
+	drm_lock_t	  lock;
+	drm_queue_t	  *q;
+#if DRM_DMA_HISTOGRAM
+	struct timespec	  start;
+
+	getnanotime(&start);
+	dev->lck_start = start;
+#endif
+
+	lock = *(drm_lock_t *) data;
+
+	if (lock.context == DRM_KERNEL_CONTEXT) {
+		DRM_ERROR("Process %d using kernel context %d\n",
+			  p->p_pid, lock.context);
+		return EINVAL;
+	}
+
+	DRM_DEBUG("%d (pid %d) requests lock (0x%08x), flags = 0x%08x\n",
+		  lock.context, p->p_pid, dev->lock.hw_lock->lock,
+		  lock.flags);
+
+	if (lock.context < 0 || lock.context >= dev->queue_count)
+		return EINVAL;
+	q = dev->queuelist[lock.context];
+	
+	ret = drm_flush_block_and_flush(dev, lock.context, lock.flags);
+
+	if (!ret) {
+		if (_DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock)
+		    != lock.context) {
+			long j = ticks - dev->lock.lock_time;
+
+			if (j > 0 && j <= DRM_LOCK_SLICE) {
+				/* Can't take lock if we just had it and
+				   there is contention. */
+				static int never;
+				ret = tsleep(&never, PZERO|PCATCH,
+					     "gaml1", j);
+				if (ret)
+					return ret;
+			}
+		}
+		atomic_inc(&dev->lock.lock_queue);
+		for (;;) {
+			if (!dev->lock.hw_lock) {
+				/* Device has been unregistered */
+				ret = EINTR;
+				break;
+			}
+			if (drm_lock_take(&dev->lock.hw_lock->lock,
+					  lock.context)) {
+				dev->lock.pid	    = p->p_pid;
+				dev->lock.lock_time = ticks;
+				atomic_inc(&dev->total_locks);
+				atomic_inc(&q->total_locks);
+				break;	/* Got lock */
+			}
+			
+				/* Contention */
+			atomic_inc(&dev->total_sleeps);
+			ret = tsleep(&dev->lock.lock_queue, PZERO|PCATCH,
+					 "gaml2", 0);
+			if (ret)
+				break;
+		}
+		atomic_dec(&dev->lock.lock_queue);
+	}
+
+	drm_flush_unblock(dev, lock.context, lock.flags); /* cleanup phase */
+	
+	if (!ret) {
+		if (lock.flags & _DRM_LOCK_READY)
+			gamma_dma_ready(dev);
+		if (lock.flags & _DRM_LOCK_QUIESCENT)
+			gamma_dma_quiescent(dev);
+	}
+	DRM_DEBUG("%d %s\n", lock.context, ret ? "interrupted" : "has lock");
+
+#if DRM_DMA_HISTOGRAM
+	{
+		struct timespec ts;
+		getnanotime(&ts);
+		timespecsub(&ts, &start);
+		atomic_inc(&dev->histo.lacq[drm_histogram_slot(&ts)]);
+	}
+#endif
+	
+	return ret;
+}
diff --git a/bsd/gamma/gamma_drv.c b/bsd/gamma/gamma_drv.c
new file mode 100644
index 00000000..fe71737a
--- /dev/null
+++ b/bsd/gamma/gamma_drv.c
@@ -0,0 +1,574 @@
+/* gamma.c -- 3dlabs GMX 2000 driver -*- c -*-
+ * Created: Mon Jan  4 08:58:31 1999 by faith@precisioninsight.com
+ * Revised: Tue Oct 12 08:51:36 1999 by faith@precisioninsight.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * 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
+ * PRECISION INSIGHT 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/gamma_drv.c,v 1.17 1999/08/30 13:05:00 faith Exp $
+ * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/gamma_drv.c,v 1.1 1999/09/25 14:38:00 dawes Exp $
+ *
+ */
+
+#include "drmP.h"
+#include "gamma_drv.h"
+
+#include <pci/pcivar.h>
+
+MODULE_DEPEND(gamma, drm, 1, 1, 1);
+
+static int gamma_init(device_t nbdev);
+static void gamma_cleanup(device_t nbdev);
+
+static int gamma_probe(device_t dev)
+{
+	const char *s = 0;
+
+	switch (pci_get_devid(dev)) {
+	case 0x00083d3d:
+		s = "3D Labs Gamma graphics accelerator";
+		break;
+	}
+
+	if (s) {
+		device_set_desc(dev, s);
+		return 0;
+	}
+
+	return ENXIO;
+}
+
+static int gamma_attach(device_t dev)
+{
+	gamma_init(dev);
+	return 0;
+}
+
+static int gamma_detach(device_t dev)
+{
+	gamma_cleanup(dev);
+	return 0;
+}
+
+static device_method_t gamma_methods[] = {
+	/* Device interface */
+	DEVMETHOD(device_probe,		gamma_probe),
+	DEVMETHOD(device_attach,	gamma_attach),
+	DEVMETHOD(device_detach,	gamma_detach),
+
+	{ 0, 0 }
+};
+
+static driver_t gamma_driver = {
+	"drm",
+	gamma_methods,
+	sizeof(drm_device_t),
+};
+
+static devclass_t gamma_devclass;
+#define GAMMA_SOFTC(unit) \
+	((drm_device_t *) devclass_get_softc(gamma_devclass, unit))
+
+DRIVER_MODULE(if_gamma, pci, gamma_driver, gamma_devclass, 0, 0);
+
+#define GAMMA_NAME	 "gamma"
+#define GAMMA_DESC	 "3dlabs GMX 2000"
+#define GAMMA_DATE	 "19990830"
+#define GAMMA_MAJOR	 0
+#define GAMMA_MINOR	 0
+#define GAMMA_PATCHLEVEL 5
+
+#define CDEV_MAJOR	200
+
+static struct cdevsw gamma_cdevsw = {
+	/* open */	gamma_open,
+	/* close */	gamma_close,
+	/* read */	drm_read,
+	/* write */	drm_write,
+	/* ioctl */	gamma_ioctl,
+	/* poll */	nopoll,
+	/* mmap */	drm_mmap,
+	/* strategy */	nostrategy,
+	/* name */	"gamma",
+	/* maj */	CDEV_MAJOR,
+	/* dump */	nodump,
+	/* psize */	nopsize,
+	/* flags */	D_TTY | D_TRACKCLOSE,
+	/* bmaj */	-1
+};
+
+static drm_ioctl_desc_t	      gamma_ioctls[] = {
+	[DRM_IOCTL_NR(DRM_IOCTL_VERSION)]    = { gamma_version,	  0, 0 },
+	[DRM_IOCTL_NR(DRM_IOCTL_GET_UNIQUE)] = { drm_getunique,	  0, 0 },
+	[DRM_IOCTL_NR(DRM_IOCTL_GET_MAGIC)]  = { drm_getmagic,	  0, 0 },
+	[DRM_IOCTL_NR(DRM_IOCTL_IRQ_BUSID)]  = { drm_irq_busid,	  0, 1 },
+
+	[DRM_IOCTL_NR(DRM_IOCTL_SET_UNIQUE)] = { drm_setunique,	  1, 1 },
+	[DRM_IOCTL_NR(DRM_IOCTL_BLOCK)]	     = { drm_block,	  1, 1 },
+	[DRM_IOCTL_NR(DRM_IOCTL_UNBLOCK)]    = { drm_unblock,	  1, 1 },
+	[DRM_IOCTL_NR(DRM_IOCTL_CONTROL)]    = { gamma_control,	  1, 1 },
+	[DRM_IOCTL_NR(DRM_IOCTL_AUTH_MAGIC)] = { drm_authmagic,	  1, 1 },
+	[DRM_IOCTL_NR(DRM_IOCTL_ADD_MAP)]    = { drm_addmap,	  1, 1 },
+	[DRM_IOCTL_NR(DRM_IOCTL_ADD_BUFS)]   = { drm_addbufs,	  1, 1 },
+	[DRM_IOCTL_NR(DRM_IOCTL_MARK_BUFS)]  = { drm_markbufs,	  1, 1 },
+	[DRM_IOCTL_NR(DRM_IOCTL_INFO_BUFS)]  = { drm_infobufs,	  1, 0 },
+	[DRM_IOCTL_NR(DRM_IOCTL_MAP_BUFS)]   = { drm_mapbufs,	  1, 0 },
+	[DRM_IOCTL_NR(DRM_IOCTL_FREE_BUFS)]  = { drm_freebufs,	  1, 0 },
+	
+	[DRM_IOCTL_NR(DRM_IOCTL_ADD_CTX)]    = { drm_addctx,	  1, 1 },
+	[DRM_IOCTL_NR(DRM_IOCTL_RM_CTX)]     = { drm_rmctx,	  1, 1 },
+	[DRM_IOCTL_NR(DRM_IOCTL_MOD_CTX)]    = { drm_modctx,	  1, 1 },
+	[DRM_IOCTL_NR(DRM_IOCTL_GET_CTX)]    = { drm_getctx,	  1, 0 },
+	[DRM_IOCTL_NR(DRM_IOCTL_SWITCH_CTX)] = { drm_switchctx,	  1, 1 },
+	[DRM_IOCTL_NR(DRM_IOCTL_NEW_CTX)]    = { drm_newctx,	  1, 1 },
+	[DRM_IOCTL_NR(DRM_IOCTL_RES_CTX)]    = { drm_resctx,	  1, 0 },
+	[DRM_IOCTL_NR(DRM_IOCTL_ADD_DRAW)]   = { drm_adddraw,	  1, 1 },
+	[DRM_IOCTL_NR(DRM_IOCTL_RM_DRAW)]    = { drm_rmdraw,	  1, 1 },
+	[DRM_IOCTL_NR(DRM_IOCTL_DMA)]	     = { gamma_dma,	  1, 0 },
+	[DRM_IOCTL_NR(DRM_IOCTL_LOCK)]	     = { gamma_lock,	  1, 0 },
+	[DRM_IOCTL_NR(DRM_IOCTL_UNLOCK)]     = { gamma_unlock,	  1, 0 },
+	[DRM_IOCTL_NR(DRM_IOCTL_FINISH)]     = { drm_finish,	  1, 0 },
+};
+#define GAMMA_IOCTL_COUNT DRM_ARRAY_SIZE(gamma_ioctls)
+
+static int gamma_setup(drm_device_t *dev)
+{
+	int i;
+	
+	device_busy(dev->device);
+
+	atomic_set(&dev->ioctl_count, 0);
+	atomic_set(&dev->vma_count, 0);
+	dev->buf_use	  = 0;
+	atomic_set(&dev->buf_alloc, 0);
+
+	drm_dma_setup(dev);
+
+	atomic_set(&dev->total_open, 0);
+	atomic_set(&dev->total_close, 0);
+	atomic_set(&dev->total_ioctl, 0);
+	atomic_set(&dev->total_irq, 0);
+	atomic_set(&dev->total_ctx, 0);
+	atomic_set(&dev->total_locks, 0);
+	atomic_set(&dev->total_unlocks, 0);
+	atomic_set(&dev->total_contends, 0);
+	atomic_set(&dev->total_sleeps, 0);
+
+	for (i = 0; i < DRM_HASH_SIZE; i++) {
+		dev->magiclist[i].head = NULL;
+		dev->magiclist[i].tail = NULL;
+	}
+	dev->maplist	    = NULL;
+	dev->map_count	    = 0;
+	dev->vmalist	    = NULL;
+	dev->lock.hw_lock   = NULL;
+	dev->lock.lock_queue = 0;
+	dev->queue_count    = 0;
+	dev->queue_reserved = 0;
+	dev->queue_slots    = 0;
+	dev->queuelist	    = NULL;
+	dev->irq	    = 0;
+	dev->context_flag   = 0;
+	dev->interrupt_flag = 0;
+	dev->dma_flag	    = 0;
+	dev->last_context   = 0;
+	dev->last_switch    = 0;
+	dev->last_checked   = 0;
+	callout_init(&dev->timer);
+	dev->context_wait   = 0;
+#if DRM_DMA_HISTO
+	memset(&dev->histo, 0, sizeof(dev->histo));
+#endif
+	timespecclear(&dev->ctx_start);
+	timespecclear(&dev->lck_start);
+	
+	dev->buf_rp	  = dev->buf;
+	dev->buf_wp	  = dev->buf;
+	dev->buf_end	  = dev->buf + DRM_BSZ;
+	dev->buf_sigio	  = NULL;
+			
+	DRM_DEBUG("\n");
+			
+	/* The kernel's context could be created here, but is now created
+	   in drm_dma_enqueue.	This is more resource-efficient for
+	   hardware that does not do DMA, but may mean that
+	   drm_select_queue fails between the time the interrupt is
+	   initialized and the time the queues are initialized. */
+			
+	return 0;
+}
+
+
+static int
+gamma_takedown(drm_device_t *dev)
+{
+	int		  i;
+	drm_magic_entry_t *pt, *next;
+	drm_map_t	  *map;
+	drm_vma_entry_t	  *vma, *vma_next;
+
+	DRM_DEBUG("\n");
+
+	if (dev->irq) gamma_irq_uninstall(dev);
+	
+	lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, curproc);
+	callout_stop(&dev->timer);
+
+	if (dev->devname) {
+		drm_free(dev->devname, strlen(dev->devname)+1, DRM_MEM_DRIVER);
+		dev->devname = NULL;
+	}
+	
+	if (dev->unique) {
+		drm_free(dev->unique, strlen(dev->unique)+1, DRM_MEM_DRIVER);
+		dev->unique = NULL;
+		dev->unique_len = 0;
+	}
+				/* Clear pid list */
+	for (i = 0; i < DRM_HASH_SIZE; i++) {
+		for (pt = dev->magiclist[i].head; pt; pt = next) {
+			next = pt->next;
+			drm_free(pt, sizeof(*pt), DRM_MEM_MAGIC);
+		}
+		dev->magiclist[i].head = dev->magiclist[i].tail = NULL;
+	}
+	
+				/* Clear vma list (only built for debugging) */
+	if (dev->vmalist) {
+		for (vma = dev->vmalist; vma; vma = vma_next) {
+			vma_next = vma->next;
+			drm_free(vma, sizeof(*vma), DRM_MEM_VMAS);
+		}
+		dev->vmalist = NULL;
+	}
+	
+				/* Clear map area and mtrr information */
+	if (dev->maplist) {
+		for (i = 0; i < dev->map_count; i++) {
+			map = dev->maplist[i];
+			switch (map->type) {
+			case _DRM_REGISTERS:
+			case _DRM_FRAME_BUFFER:
+#ifdef CONFIG_MTRR
+				if (map->mtrr >= 0) {
+					int retcode;
+					retcode = mtrr_del(map->mtrr,
+							   map->offset,
+							   map->size);
+					DRM_DEBUG("mtrr_del = %d\n", retcode);
+				}
+#endif
+				drm_ioremapfree(map->handle, map->size);
+				break;
+			case _DRM_SHM:
+				drm_free_pages((unsigned long)map->handle,
+					       drm_order(map->size)
+					       - PAGE_SHIFT,
+					       DRM_MEM_SAREA);
+				break;
+			}
+			drm_free(map, sizeof(*map), DRM_MEM_MAPS);
+		}
+		drm_free(dev->maplist,
+			 dev->map_count * sizeof(*dev->maplist),
+			 DRM_MEM_MAPS);
+		dev->maplist   = NULL;
+		dev->map_count = 0;
+	}
+	
+	if (dev->queuelist) {
+		for (i = 0; i < dev->queue_count; i++) {
+			drm_waitlist_destroy(&dev->queuelist[i]->waitlist);
+			if (dev->queuelist[i]) {
+				drm_free(dev->queuelist[i],
+					 sizeof(*dev->queuelist[0]),
+					 DRM_MEM_QUEUES);
+				dev->queuelist[i] = NULL;
+			}
+		}
+		drm_free(dev->queuelist,
+			 dev->queue_slots * sizeof(*dev->queuelist),
+			 DRM_MEM_QUEUES);
+		dev->queuelist	 = NULL;
+	}
+
+	drm_dma_takedown(dev);
+
+	dev->queue_count     = 0;
+	if (dev->lock.hw_lock) {
+		dev->lock.hw_lock    = NULL; /* SHM removed */
+		dev->lock.pid	     = 0;
+		wakeup(&dev->lock.lock_queue);
+	}
+	lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc);
+	
+	device_unbusy(dev->device);
+
+	return 0;
+}
+
+/* gamma_init is called via gamma_attach at module load time */
+
+static int
+gamma_init(device_t nbdev)
+{
+	drm_device_t	      *dev = device_get_softc(nbdev);
+
+	DRM_DEBUG("\n");
+
+	memset((void *)dev, 0, sizeof(*dev));
+	simple_lock_init(&dev->count_lock);
+	lockinit(&dev->dev_lock, PZERO, "drmlk", 0, 0);
+	
+#if 0				/* XXX use getenv I guess */
+	drm_parse_options(gamma);
+#endif
+
+#if 0
+	if ((retcode = misc_register(&gamma_misc))) {
+		DRM_ERROR("Cannot register \"%s\"\n", GAMMA_NAME);
+		return retcode;
+	}
+#endif
+	dev->device = nbdev;
+	dev->devnode = make_dev(&gamma_cdevsw,
+				device_get_unit(nbdev),
+				DRM_DEV_UID,
+				DRM_DEV_GID,
+				DRM_DEV_MODE,
+				GAMMA_NAME);
+	dev->name   = GAMMA_NAME;
+
+	drm_mem_init();
+	drm_sysctl_init(dev);
+
+	DRM_INFO("Initialized %s %d.%d.%d %s on minor %d\n",
+		 GAMMA_NAME,
+		 GAMMA_MAJOR,
+		 GAMMA_MINOR,
+		 GAMMA_PATCHLEVEL,
+		 GAMMA_DATE,
+		 device_get_unit(nbdev));
+
+	return 0;
+}
+
+/* gamma_cleanup is called via gamma_detach at module unload time. */
+
+static void
+gamma_cleanup(device_t nbdev)
+{
+	drm_device_t	      *dev = device_get_softc(nbdev);
+
+	DRM_DEBUG("\n");
+	
+	drm_sysctl_cleanup(dev);
+#if 0
+	if (misc_deregister(&gamma_misc)) {
+		DRM_ERROR("Cannot unload module\n");
+	} else {
+		DRM_INFO("Module unloaded\n");
+	}
+#endif
+	device_busy(dev->device);
+	gamma_takedown(dev);
+}
+
+SYSUNINIT(gamma_cleanup, SI_SUB_DRIVERS, SI_ORDER_ANY, gamma_cleanup, 0);
+
+#if 0
+int gamma_version(struct inode *inode, struct file *filp, unsigned int cmd,
+		  unsigned long arg)
+{
+	drm_version_t version;
+	int	      len;
+
+	copy_from_user_ret(&version,
+			   (drm_version_t *)arg,
+			   sizeof(version),
+			   -EFAULT);
+
+#define DRM_COPY(name,value)				     \
+	len = strlen(value);				     \
+	if (len > name##_len) len = name##_len;		     \
+	name##_len = strlen(value);			     \
+	if (len && name) {				     \
+		copy_to_user_ret(name, value, len, -EFAULT); \
+	}
+
+	version.version_major	   = GAMMA_MAJOR;
+	version.version_minor	   = GAMMA_MINOR;
+	version.version_patchlevel = GAMMA_PATCHLEVEL;
+
+	DRM_COPY(version.name, GAMMA_NAME);
+	DRM_COPY(version.date, GAMMA_DATE);
+	DRM_COPY(version.desc, GAMMA_DESC);
+
+	copy_to_user_ret((drm_version_t *)arg,
+			 &version,
+			 sizeof(version),
+			 -EFAULT);
+	return 0;
+}
+#endif
+
+int
+gamma_open(dev_t kdev, int flags, int fmt, struct proc *p)
+{
+	drm_device_t  *dev    = GAMMA_SOFTC(minor(kdev));
+	int	      retcode = 0;
+	
+	DRM_DEBUG("open_count = %d\n", dev->open_count);
+
+	device_busy(dev->device);
+	if (!(retcode = drm_open_helper(kdev, flags, fmt, p, dev))) {
+		atomic_inc(&dev->total_open);
+		simple_lock(&dev->count_lock);
+		if (!dev->open_count++) {
+			simple_unlock(&dev->count_lock);
+			retcode = gamma_setup(dev);
+		}
+		simple_unlock(&dev->count_lock);
+	}
+	device_unbusy(dev->device);
+
+	return retcode;
+}
+
+int
+gamma_close(dev_t kdev, int flags, int fmt, struct proc *p)
+{
+	drm_device_t	 *dev	 = kdev->si_drv1;
+	int	      retcode = 0;
+
+	DRM_DEBUG("open_count = %d\n", dev->open_count);
+	if (!(retcode = drm_close(kdev, flags, fmt, p))) {
+		atomic_inc(&dev->total_close);
+		simple_lock(&dev->count_lock);
+		if (!--dev->open_count) {
+			if (atomic_read(&dev->ioctl_count) || dev->blocked) {
+				DRM_ERROR("Device busy: %d %d\n",
+					  atomic_read(&dev->ioctl_count),
+					  dev->blocked);
+				simple_unlock(&dev->count_lock);
+				return EBUSY;
+			}
+			simple_unlock(&dev->count_lock);
+			return gamma_takedown(dev);
+		}
+		simple_unlock(&dev->count_lock);
+	}
+	return retcode;
+}
+
+/* drm_ioctl is called whenever a process performs an ioctl on /dev/drm. */
+
+int
+gamma_ioctl(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
+{
+	int		 nr	 = DRM_IOCTL_NR(cmd);
+	drm_device_t	 *dev	 = kdev->si_drv1;
+	drm_file_t	 *priv;
+	int		 retcode = 0;
+	drm_ioctl_desc_t *ioctl;
+	d_ioctl_t	 *func;
+
+	priv = drm_find_file_by_proc(dev, p);
+	if (!priv) {
+		DRM_DEBUG("can't find authenticator\n");
+		return EINVAL;
+	}
+
+	atomic_inc(&dev->ioctl_count);
+	atomic_inc(&dev->total_ioctl);
+	++priv->ioctl_count;
+	
+	DRM_DEBUG("pid = %d, cmd = 0x%02lx, nr = 0x%02x, auth = %d\n",
+		  p->p_pid, cmd, nr, priv->authenticated);
+
+	switch (cmd) {
+	case FIOSETOWN:
+		return fsetown(*(int *)data, &dev->buf_sigio);
+
+	case FIOGETOWN:
+		*(int *) data = fgetown(dev->buf_sigio);
+		return 0;
+	}
+
+	if (nr >= GAMMA_IOCTL_COUNT) {
+		retcode = EINVAL;
+	} else {
+		ioctl	  = &gamma_ioctls[nr];
+		func	  = ioctl->func;
+
+		if (!func) {
+			DRM_DEBUG("no function\n");
+			retcode = EINVAL;
+		} else if ((ioctl->root_only && suser(p))
+			    || (ioctl->auth_needed && !priv->authenticated)) {
+			retcode = EACCES;
+		} else {
+			retcode = (func)(kdev, cmd, data, flags, p);
+		}
+	}
+	
+	atomic_dec(&dev->ioctl_count);
+	return retcode;
+}
+
+int gamma_unlock(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
+{
+	drm_device_t	  *dev	  = kdev->si_drv1;
+	drm_lock_t	  *lockp  = (drm_lock_t *) data;
+
+	if (lockp->context == DRM_KERNEL_CONTEXT) {
+		DRM_ERROR("Process %d using kernel context %d\n",
+			  p->p_pid, lockp->context);
+		return -EINVAL;
+	}
+
+	DRM_DEBUG("%d frees lock (%d holds)\n",
+		  lockp->context,
+		  _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock));
+	atomic_inc(&dev->total_unlocks);
+	if (_DRM_LOCK_IS_CONT(dev->lock.hw_lock->lock))
+		atomic_inc(&dev->total_contends);
+	drm_lock_transfer(dev, &dev->lock.hw_lock->lock, DRM_KERNEL_CONTEXT);
+	gamma_dma_schedule(dev, 1);
+	if (!dev->context_flag) {
+		if (drm_lock_free(dev, &dev->lock.hw_lock->lock,
+				  DRM_KERNEL_CONTEXT)) {
+			DRM_ERROR("\n");
+		}
+	}
+
+#if DRM_DMA_HISTOGRAM
+	{
+	    struct timespec ts;
+	    getnanotime(&ts);
+	    timespecsub(&ts, &dev->lck_start);
+	    atomic_inc(&dev->histo.lhld[drm_histogram_slot(&ts)]);
+	}
+#endif
+	
+	return 0;
+}
diff --git a/bsd/gamma/gamma_drv.h b/bsd/gamma/gamma_drv.h
new file mode 100644
index 00000000..e4888220
--- /dev/null
+++ b/bsd/gamma/gamma_drv.h
@@ -0,0 +1,50 @@
+/* gamma_drv.h -- Private header for 3dlabs GMX 2000 driver -*- c -*-
+ * Created: Mon Jan  4 10:05:05 1999 by faith@precisioninsight.com
+ * Revised: Fri Aug 20 09:24:27 1999 by faith@precisioninsight.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * 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
+ * PRECISION INSIGHT 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/gamma_drv.h,v 1.4 1999/08/30 13:05:00 faith Exp $
+ * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/gamma_drv.h,v 1.1 1999/09/25 14:38:00 dawes Exp $
+ * 
+ */
+
+#ifndef _GAMMA_DRV_H_
+#define _GAMMA_DRV_H_
+
+				/* gamma_drv.c */
+extern d_open_t gamma_open;
+extern d_close_t gamma_close;
+extern d_ioctl_t gamma_ioctl;
+extern d_ioctl_t gamma_version;
+extern d_ioctl_t gamma_dma;
+extern d_ioctl_t gamma_lock;
+extern d_ioctl_t gamma_unlock;
+extern d_ioctl_t gamma_control;
+
+				/* gamma_dma.c */
+extern int  gamma_dma_schedule(drm_device_t *dev, int locked);
+extern int  gamma_irq_install(drm_device_t *dev, int irq);
+extern int  gamma_irq_uninstall(drm_device_t *dev);
+
+#endif
diff --git a/bsd/i810_drm.h b/bsd/i810_drm.h
new file mode 100644
index 00000000..4c8e09f6
--- /dev/null
+++ b/bsd/i810_drm.h
@@ -0,0 +1,188 @@
+#ifndef _I810_DRM_H_
+#define _I810_DRM_H_
+
+/* WARNING: These defines must be the same as what the Xserver uses.
+ * if you change them, you must change the defines in the Xserver.
+ */
+
+#ifndef _I810_DEFINES_
+#define _I810_DEFINES_
+
+#define I810_DMA_BUF_ORDER		12
+#define I810_DMA_BUF_SZ 		(1<<I810_DMA_BUF_ORDER)
+#define I810_DMA_BUF_NR 		256
+#define I810_NR_SAREA_CLIPRECTS 	8
+
+/* Each region is a minimum of 64k, and there are at most 64 of them.
+ */
+#define I810_NR_TEX_REGIONS 64
+#define I810_LOG_MIN_TEX_REGION_SIZE 16
+#endif
+
+#define I810_UPLOAD_TEX0IMAGE  0x1 /* handled clientside */
+#define I810_UPLOAD_TEX1IMAGE  0x2 /* handled clientside */
+#define I810_UPLOAD_CTX        0x4
+#define I810_UPLOAD_BUFFERS    0x8
+#define I810_UPLOAD_TEX0       0x10
+#define I810_UPLOAD_TEX1       0x20
+#define I810_UPLOAD_CLIPRECTS  0x40
+
+
+/* Indices into buf.Setup where various bits of state are mirrored per
+ * context and per buffer.  These can be fired at the card as a unit,
+ * or in a piecewise fashion as required.
+ */
+
+/* Destbuffer state 
+ *    - backbuffer linear offset and pitch -- invarient in the current dri
+ *    - zbuffer linear offset and pitch -- also invarient
+ *    - drawing origin in back and depth buffers.
+ *
+ * Keep the depth/back buffer state here to acommodate private buffers
+ * in the future.
+ */
+#define I810_DESTREG_DI0  0	/* CMD_OP_DESTBUFFER_INFO (2 dwords) */
+#define I810_DESTREG_DI1  1
+#define I810_DESTREG_DV0  2	/* GFX_OP_DESTBUFFER_VARS (2 dwords) */
+#define I810_DESTREG_DV1  3
+#define I810_DESTREG_DR0  4	/* GFX_OP_DRAWRECT_INFO (4 dwords) */
+#define I810_DESTREG_DR1  5
+#define I810_DESTREG_DR2  6
+#define I810_DESTREG_DR3  7
+#define I810_DESTREG_DR4  8
+#define I810_DEST_SETUP_SIZE 10
+
+/* Context state
+ */
+#define I810_CTXREG_CF0   0	/* GFX_OP_COLOR_FACTOR */
+#define I810_CTXREG_CF1   1	
+#define I810_CTXREG_ST0   2     /* GFX_OP_STIPPLE */
+#define I810_CTXREG_ST1   3
+#define I810_CTXREG_VF    4	/* GFX_OP_VERTEX_FMT */
+#define I810_CTXREG_MT    5	/* GFX_OP_MAP_TEXELS */
+#define I810_CTXREG_MC0   6	/* GFX_OP_MAP_COLOR_STAGES - stage 0 */
+#define I810_CTXREG_MC1   7     /* GFX_OP_MAP_COLOR_STAGES - stage 1 */
+#define I810_CTXREG_MC2   8	/* GFX_OP_MAP_COLOR_STAGES - stage 2 */
+#define I810_CTXREG_MA0   9	/* GFX_OP_MAP_ALPHA_STAGES - stage 0 */
+#define I810_CTXREG_MA1   10	/* GFX_OP_MAP_ALPHA_STAGES - stage 1 */
+#define I810_CTXREG_MA2   11	/* GFX_OP_MAP_ALPHA_STAGES - stage 2 */
+#define I810_CTXREG_SDM   12	/* GFX_OP_SRC_DEST_MONO */
+#define I810_CTXREG_FOG   13	/* GFX_OP_FOG_COLOR */
+#define I810_CTXREG_B1    14	/* GFX_OP_BOOL_1 */
+#define I810_CTXREG_B2    15	/* GFX_OP_BOOL_2 */
+#define I810_CTXREG_LCS   16	/* GFX_OP_LINEWIDTH_CULL_SHADE_MODE */
+#define I810_CTXREG_PV    17	/* GFX_OP_PV_RULE -- Invarient! */
+#define I810_CTXREG_ZA    18	/* GFX_OP_ZBIAS_ALPHAFUNC */
+#define I810_CTXREG_AA    19	/* GFX_OP_ANTIALIAS */
+#define I810_CTX_SETUP_SIZE 20 
+
+/* Texture state (per tex unit)
+ */
+#define I810_TEXREG_MI0  0	/* GFX_OP_MAP_INFO (4 dwords) */
+#define I810_TEXREG_MI1  1	
+#define I810_TEXREG_MI2  2	
+#define I810_TEXREG_MI3  3	
+#define I810_TEXREG_MF   4	/* GFX_OP_MAP_FILTER */
+#define I810_TEXREG_MLC  5	/* GFX_OP_MAP_LOD_CTL */
+#define I810_TEXREG_MLL  6	/* GFX_OP_MAP_LOD_LIMITS */
+#define I810_TEXREG_MCS  7	/* GFX_OP_MAP_COORD_SETS ??? */
+#define I810_TEX_SETUP_SIZE 8
+
+#define I810_FRONT   0x1
+#define I810_BACK    0x2
+#define I810_DEPTH   0x4
+
+
+typedef struct _drm_i810_init {
+	enum {
+		I810_INIT_DMA = 0x01,
+		I810_CLEANUP_DMA = 0x02
+	} func;
+	int ring_map_idx;
+	int buffer_map_idx;
+	int sarea_priv_offset;
+	unsigned int ring_start;
+	unsigned int ring_end;
+	unsigned int ring_size;
+	unsigned int front_offset;
+	unsigned int back_offset;
+	unsigned int depth_offset;
+	unsigned int w;
+	unsigned int h;
+	unsigned int pitch;
+	unsigned int pitch_bits; 
+} drm_i810_init_t;
+
+/* Warning: If you change the SAREA structure you must change the Xserver
+ * structure as well */
+
+typedef struct _drm_i810_tex_region {
+	unsigned char next, prev; /* indices to form a circular LRU  */
+	unsigned char in_use;	/* owned by a client, or free? */
+	int age;		/* tracked by clients to update local LRU's */
+} drm_i810_tex_region_t;
+
+typedef struct _drm_i810_sarea {
+   	unsigned int ContextState[I810_CTX_SETUP_SIZE];
+   	unsigned int BufferState[I810_DEST_SETUP_SIZE];
+   	unsigned int TexState[2][I810_TEX_SETUP_SIZE];
+   	unsigned int dirty;
+
+	unsigned int nbox;
+	drm_clip_rect_t boxes[I810_NR_SAREA_CLIPRECTS];
+
+	/* Maintain an LRU of contiguous regions of texture space.  If
+	 * you think you own a region of texture memory, and it has an
+	 * age different to the one you set, then you are mistaken and
+	 * it has been stolen by another client.  If global texAge
+	 * hasn't changed, there is no need to walk the list.
+	 *
+	 * These regions can be used as a proxy for the fine-grained
+	 * texture information of other clients - by maintaining them
+	 * in the same lru which is used to age their own textures,
+	 * clients have an approximate lru for the whole of global
+	 * texture space, and can make informed decisions as to which
+	 * areas to kick out.  There is no need to choose whether to
+	 * kick out your own texture or someone else's - simply eject
+	 * them all in LRU order.  
+	 */
+   
+	drm_i810_tex_region_t texList[I810_NR_TEX_REGIONS+1]; 
+				/* Last elt is sentinal */
+        int texAge;		/* last time texture was uploaded */
+        int last_enqueue;	/* last time a buffer was enqueued */
+	int last_dispatch;	/* age of the most recently dispatched buffer */
+	int last_quiescent;     /*  */
+	int ctxOwner;		/* last context to upload state */
+
+	int vertex_prim;
+
+} drm_i810_sarea_t;
+
+typedef struct _drm_i810_clear {
+	int clear_color;
+	int clear_depth;
+	int flags;
+} drm_i810_clear_t;
+
+
+
+/* These may be placeholders if we have more cliprects than
+ * I810_NR_SAREA_CLIPRECTS.  In that case, the client sets discard to
+ * false, indicating that the buffer will be dispatched again with a
+ * new set of cliprects.
+ */
+typedef struct _drm_i810_vertex {
+   	int idx;		/* buffer index */
+	int used;		/* nr bytes in use */
+	int discard;		/* client is finished with the buffer? */
+} drm_i810_vertex_t;
+
+typedef struct drm_i810_dma {
+	void *virtual;
+	int request_idx;
+	int request_size;
+	int granted;
+} drm_i810_dma_t;
+
+#endif /* _I810_DRM_H_ */
diff --git a/bsd/mga_drm.h b/bsd/mga_drm.h
new file mode 100644
index 00000000..8bfa2b97
--- /dev/null
+++ b/bsd/mga_drm.h
@@ -0,0 +1,269 @@
+/* mga_drm.h -- Public header for the Matrox g200/g400 driver
+ * Created: Tue Jan 25 01:50:01 1999 by jhartmann@precisioninsight.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * 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
+ * PRECISION INSIGHT 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.
+ *
+ * Authors: Jeff Hartmann <jhartmann@precisioninsight.com>
+ *          Keith Whitwell <keithw@precisioninsight.com>
+ *
+ * $XFree86$
+ */
+
+#ifndef _MGA_DRM_H_
+#define _MGA_DRM_H_
+
+/* WARNING: If you change any of these defines, make sure to change the
+ * defines in the Xserver file (xf86drmMga.h)
+ */
+#ifndef _MGA_DEFINES_
+#define _MGA_DEFINES_
+
+#define MGA_F  0x1		/* fog */
+#define MGA_A  0x2		/* alpha */
+#define MGA_S  0x4		/* specular */
+#define MGA_T2 0x8		/* multitexture */
+
+#define MGA_WARP_TGZ            0
+#define MGA_WARP_TGZF           (MGA_F)
+#define MGA_WARP_TGZA           (MGA_A)
+#define MGA_WARP_TGZAF          (MGA_F|MGA_A)
+#define MGA_WARP_TGZS           (MGA_S)
+#define MGA_WARP_TGZSF          (MGA_S|MGA_F)
+#define MGA_WARP_TGZSA          (MGA_S|MGA_A)
+#define MGA_WARP_TGZSAF         (MGA_S|MGA_F|MGA_A)
+#define MGA_WARP_T2GZ           (MGA_T2)
+#define MGA_WARP_T2GZF          (MGA_T2|MGA_F)
+#define MGA_WARP_T2GZA          (MGA_T2|MGA_A)
+#define MGA_WARP_T2GZAF         (MGA_T2|MGA_A|MGA_F)
+#define MGA_WARP_T2GZS          (MGA_T2|MGA_S)
+#define MGA_WARP_T2GZSF         (MGA_T2|MGA_S|MGA_F)
+#define MGA_WARP_T2GZSA         (MGA_T2|MGA_S|MGA_A)
+#define MGA_WARP_T2GZSAF        (MGA_T2|MGA_S|MGA_F|MGA_A)
+
+#define MGA_MAX_G400_PIPES 16
+#define MGA_MAX_G200_PIPES  8	/* no multitex */
+#define MGA_MAX_WARP_PIPES MGA_MAX_G400_PIPES
+
+#define MGA_CARD_TYPE_G200 1
+#define MGA_CARD_TYPE_G400 2
+
+#define MGA_FRONT   0x1
+#define MGA_BACK    0x2
+#define MGA_DEPTH   0x4
+
+/* 3d state excluding texture units:
+ */
+#define MGA_CTXREG_DSTORG   0	/* validated */
+#define MGA_CTXREG_MACCESS  1	
+#define MGA_CTXREG_PLNWT    2	
+#define MGA_CTXREG_DWGCTL    3	
+#define MGA_CTXREG_ALPHACTRL 4
+#define MGA_CTXREG_FOGCOLOR  5
+#define MGA_CTXREG_WFLAG     6
+#define MGA_CTXREG_TDUAL0    7
+#define MGA_CTXREG_TDUAL1    8
+#define MGA_CTXREG_FCOL      9
+#define MGA_CTX_SETUP_SIZE   10
+
+/* 2d state
+ */
+#define MGA_2DREG_PITCH 	0
+#define MGA_2D_SETUP_SIZE 	1
+
+/* Each texture unit has a state:
+ */
+#define MGA_TEXREG_CTL        0
+#define MGA_TEXREG_CTL2       1
+#define MGA_TEXREG_FILTER     2
+#define MGA_TEXREG_BORDERCOL  3
+#define MGA_TEXREG_ORG        4 /* validated */
+#define MGA_TEXREG_ORG1       5
+#define MGA_TEXREG_ORG2       6
+#define MGA_TEXREG_ORG3       7
+#define MGA_TEXREG_ORG4       8
+#define MGA_TEXREG_WIDTH      9
+#define MGA_TEXREG_HEIGHT     10
+#define MGA_TEX_SETUP_SIZE    11
+
+/* What needs to be changed for the current vertex dma buffer?
+ */
+#define MGA_UPLOAD_CTX        0x1
+#define MGA_UPLOAD_TEX0       0x2
+#define MGA_UPLOAD_TEX1       0x4
+#define MGA_UPLOAD_PIPE       0x8
+#define MGA_UPLOAD_TEX0IMAGE  0x10 /* handled client-side */
+#define MGA_UPLOAD_TEX1IMAGE  0x20 /* handled client-side */
+#define MGA_UPLOAD_2D 	      0x40
+#define MGA_WAIT_AGE          0x80 /* handled client-side */
+#define MGA_UPLOAD_CLIPRECTS  0x100 /* handled client-side */
+#define MGA_DMA_FLUSH	      0x200 /* set when someone gets the lock
+                                       quiescent */
+
+/* 32 buffers of 64k each, total 2 meg.
+ */
+#define MGA_DMA_BUF_ORDER     16
+#define MGA_DMA_BUF_SZ        (1<<MGA_DMA_BUF_ORDER)
+#define MGA_DMA_BUF_NR        31
+
+/* Keep these small for testing.
+ */
+#define MGA_NR_SAREA_CLIPRECTS 8
+
+/* 2 heaps (1 for card, 1 for agp), each divided into upto 128
+ * regions, subject to a minimum region size of (1<<16) == 64k. 
+ *
+ * Clients may subdivide regions internally, but when sharing between
+ * clients, the region size is the minimum granularity. 
+ */
+
+#define MGA_CARD_HEAP 0
+#define MGA_AGP_HEAP  1
+#define MGA_NR_TEX_HEAPS 2
+#define MGA_NR_TEX_REGIONS 16
+#define MGA_LOG_MIN_TEX_REGION_SIZE 16
+#endif
+
+typedef struct _drm_mga_warp_index {
+   	int installed;
+   	unsigned long phys_addr;
+   	int size;
+} drm_mga_warp_index_t;
+
+typedef struct drm_mga_init {
+   	enum { 
+	   	MGA_INIT_DMA = 0x01,
+	       	MGA_CLEANUP_DMA = 0x02
+	} func;
+   	int reserved_map_agpstart;
+   	int reserved_map_idx;
+   	int buffer_map_idx;
+   	int sarea_priv_offset;
+   	int primary_size;
+   	int warp_ucode_size;
+   	unsigned int frontOffset;
+   	unsigned int backOffset;
+   	unsigned int depthOffset;
+   	unsigned int textureOffset;
+   	unsigned int textureSize;
+        unsigned int agpTextureOffset;
+        unsigned int agpTextureSize;
+   	unsigned int cpp;
+   	unsigned int stride;
+   	int sgram;
+	int chipset;
+   	drm_mga_warp_index_t WarpIndex[MGA_MAX_WARP_PIPES];
+	unsigned int mAccess;
+} drm_mga_init_t;
+
+/* Warning: if you change the sarea structure, you must change the Xserver
+ * structures as well */
+
+typedef struct _drm_mga_tex_region {
+	unsigned char next, prev;	
+	unsigned char in_use;	
+	unsigned int age;			
+} drm_mga_tex_region_t;
+
+typedef struct _drm_mga_sarea {
+	/* The channel for communication of state information to the kernel
+	 * on firing a vertex dma buffer.
+	 */
+   	unsigned int ContextState[MGA_CTX_SETUP_SIZE];
+   	unsigned int ServerState[MGA_2D_SETUP_SIZE];
+   	unsigned int TexState[2][MGA_TEX_SETUP_SIZE];
+   	unsigned int WarpPipe;
+   	unsigned int dirty;
+
+   	unsigned int nbox;
+   	drm_clip_rect_t boxes[MGA_NR_SAREA_CLIPRECTS];
+
+
+	/* Information about the most recently used 3d drawable.  The
+	 * client fills in the req_* fields, the server fills in the 
+	 * exported_ fields and puts the cliprects into boxes, above.
+	 *
+	 * The client clears the exported_drawable field before
+	 * clobbering the boxes data.
+	 */
+        unsigned int req_drawable;	 /* the X drawable id */
+	unsigned int req_draw_buffer;	 /* MGA_FRONT or MGA_BACK */
+
+        unsigned int exported_drawable;	 
+	unsigned int exported_index; 
+        unsigned int exported_stamp;	
+        unsigned int exported_buffers;	 
+        unsigned int exported_nfront;
+        unsigned int exported_nback;
+	int exported_back_x, exported_front_x, exported_w;	
+	int exported_back_y, exported_front_y, exported_h;
+   	drm_clip_rect_t exported_boxes[MGA_NR_SAREA_CLIPRECTS];
+   
+	/* Counters for aging textures and for client-side throttling.
+	 */
+        unsigned int last_enqueue;	/* last time a buffer was enqueued */
+	unsigned int last_dispatch;	/* age of the most recently dispatched buffer */
+	unsigned int last_quiescent;     /*  */
+
+
+	/* LRU lists for texture memory in agp space and on the card
+	 */
+	drm_mga_tex_region_t texList[MGA_NR_TEX_HEAPS][MGA_NR_TEX_REGIONS+1];
+	unsigned int texAge[MGA_NR_TEX_HEAPS];
+	
+	/* Mechanism to validate card state.
+	 */
+   	int ctxOwner;
+} drm_mga_sarea_t;	
+
+/* Device specific ioctls:
+ */
+typedef struct _drm_mga_clear {
+	unsigned int clear_color;
+	unsigned int clear_depth;
+	unsigned int flags;
+} drm_mga_clear_t;
+
+typedef struct _drm_mga_swap {
+   	int dummy;
+} drm_mga_swap_t;
+
+typedef struct _drm_mga_iload {
+	int idx;
+	int length;
+	unsigned int destOrg;
+} drm_mga_iload_t;
+
+typedef struct _drm_mga_vertex {
+   	int idx;		/* buffer to queue */
+	int used;		/* bytes in use */
+	int discard;		/* client finished with buffer?  */
+} drm_mga_vertex_t;
+
+typedef struct _drm_mga_indices {
+   	int idx;		/* buffer to queue */
+	unsigned int start;		
+	unsigned int end;		
+	int discard;		/* client finished with buffer?  */
+} drm_mga_indices_t;
+
+#endif
diff --git a/bsd/r128_drm.h b/bsd/r128_drm.h
new file mode 100644
index 00000000..0379a5fa
--- /dev/null
+++ b/bsd/r128_drm.h
@@ -0,0 +1,111 @@
+/* r128_drm.h -- Public header for the r128 driver
+ * Created: Wed Apr  5 19:24:19 2000 by kevin@precisioninsight.com
+ *
+ * Copyright 2000 Precision Insight, Inc., Cedar Park, Texas.
+ * 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
+ * PRECISION INSIGHT 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.
+ *
+ * Authors: Kevin E. Martin <kevin@precisioninsight.com>
+ *
+ * $XFree86$
+ */
+
+#ifndef _R128_DRM_H_
+#define _R128_DRM_H_
+
+/* WARNING: If you change any of these defines, make sure to change the
+ * defines in the Xserver file (xf86drmR128.h)
+ */
+typedef struct drm_r128_init {
+	enum { 
+		R128_INIT_CCE    = 0x01,
+		R128_CLEANUP_CCE = 0x02
+	} func;
+	int sarea_priv_offset;
+	int is_pci;
+	int cce_mode;
+	int cce_fifo_size;
+	int cce_secure;
+	int ring_size;
+	int usec_timeout;
+
+	int fb_offset;
+	int agp_ring_offset;
+	int agp_read_ptr_offset;
+	int agp_vertbufs_offset;
+	int agp_indbufs_offset;
+	int agp_textures_offset;
+	int mmio_offset;
+} drm_r128_init_t;
+
+typedef struct drm_r128_packet {
+	unsigned long *buffer;
+	int            count;
+	int            flags;
+} drm_r128_packet_t;
+
+typedef enum drm_r128_prim {
+	_DRM_R128_PRIM_NONE		= 0x0001,
+	_DRM_R128_PRIM_POINT		= 0x0002,
+	_DRM_R128_PRIM_LINE		= 0x0004,
+	_DRM_R128_PRIM_POLY_LINE	= 0x0008,
+	_DRM_R128_PRIM_TRI_LIST		= 0x0010,
+	_DRM_R128_PRIM_TRI_FAN		= 0x0020,
+	_DRM_R128_PRIM_TRI_STRIP	= 0x0040,
+	_DRM_R128_PRIM_TRI_TYPE2	= 0x0080
+} drm_r128_prim_t;
+
+typedef struct drm_r128_vertex {
+				/* Indices here refer to the offset into
+				   buflist in drm_buf_get_t.  */
+	int		send_count;	  /* Number of buffers to send	    */
+	int		*send_indices;	  /* List of handles to buffers	    */
+	int		*send_sizes;	  /* Lengths of data to send	    */
+	drm_r128_prim_t	prim;		  /* Primitive type		    */
+	int		request_count;	  /* Number of buffers requested    */
+	int		*request_indices; /* Buffer information		    */
+	int		*request_sizes;
+	int		granted_count;	  /* Number of buffers granted	    */
+} drm_r128_vertex_t;
+
+/* WARNING: If you change any of these defines, make sure to change the
+ * defines in the Xserver file (r128_sarea.h)
+ */
+#define R128_LOCAL_TEX_HEAP       0
+#define R128_AGP_TEX_HEAP         1
+#define R128_NR_TEX_HEAPS         2
+#define R128_NR_TEX_REGIONS      64
+#define R128_LOG_TEX_GRANULARITY 16
+
+typedef struct drm_tex_region {
+	unsigned char next, prev;       
+	unsigned char in_use;   
+	int age;                        
+} drm_tex_region_t;
+
+typedef struct drm_r128_sarea {
+	drm_tex_region_t tex_list[R128_NR_TEX_HEAPS][R128_NR_TEX_REGIONS+1];
+	int              tex_age[R128_NR_TEX_HEAPS];
+	int              ctx_owner;
+	int              ring_write;
+} drm_r128_sarea_t;
+
+#endif
diff --git a/bsd/tdfx/Makefile b/bsd/tdfx/Makefile
new file mode 100644
index 00000000..e0ff8ffa
--- /dev/null
+++ b/bsd/tdfx/Makefile
@@ -0,0 +1,15 @@
+# $FreeBSD$
+
+KMOD	= tdfx
+SRCS    = tdfx_drv.c tdfx_context.c
+SRCS   += device_if.h bus_if.h pci_if.h
+CFLAGS += ${DEBUG_FLAGS} -I..
+KERN    = /usr/src/sys
+
+@:
+	ln -sf /sys @
+
+machine:
+	ln -sf /sys/i386/include machine
+
+.include "/usr/src/sys/conf/kmod.mk"
diff --git a/bsd/tdfx/tdfx_context.c b/bsd/tdfx/tdfx_context.c
new file mode 100644
index 00000000..0aecf762
--- /dev/null
+++ b/bsd/tdfx/tdfx_context.c
@@ -0,0 +1,201 @@
+/* tdfx_context.c -- IOCTLs for tdfx contexts -*- c -*-
+ * Created: Thu Oct  7 10:50:22 1999 by faith@precisioninsight.com
+ * Revised: Sat Oct  9 23:39:56 1999 by faith@precisioninsight.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * 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
+ * PRECISION INSIGHT 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.
+ * 
+ * $PI$
+ * $XFree86$
+ *
+ */
+
+#include "drmP.h"
+#include "tdfx_drv.h"
+
+extern drm_ctx_t tdfx_res_ctx;
+
+static int tdfx_alloc_queue(drm_device_t *dev)
+{
+	static int context = 0;
+
+	return ++context;	/* Should this reuse contexts in the future? */
+}
+
+int tdfx_context_switch(drm_device_t *dev, int old, int new)
+{
+        char        buf[64];
+
+        atomic_inc(&dev->total_ctx);
+
+        if (test_and_set_bit(0, &dev->context_flag)) {
+                DRM_ERROR("Reentering -- FIXME\n");
+                return -EBUSY;
+        }
+
+#if DRM_DMA_HISTOGRAM
+        getnanotime(&dev->ctx_start);
+#endif
+        
+        DRM_DEBUG("Context switch from %d to %d\n", old, new);
+
+        if (new == dev->last_context) {
+                clear_bit(0, &dev->context_flag);
+                return 0;
+        }
+        
+        if (drm_flags & DRM_FLAG_NOCTX) {
+                tdfx_context_switch_complete(dev, new);
+        } else {
+                sprintf(buf, "C %d %d\n", old, new);
+                drm_write_string(dev, buf);
+        }
+        
+        return 0;
+}
+
+int tdfx_context_switch_complete(drm_device_t *dev, int new)
+{
+        dev->last_context = new;  /* PRE/POST: This is the _only_ writer. */
+        dev->last_switch  = ticks;
+        
+        if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
+                DRM_ERROR("Lock isn't held after context switch\n");
+        }
+
+				/* If a context switch is ever initiated
+                                   when the kernel holds the lock, release
+                                   that lock here. */
+#if DRM_DMA_HISTOGRAM
+	{
+	    struct timespec ts;
+	    getnanotime(&ts);
+	    timespecsub(&ts, &dev->lck_start);
+	    atomic_inc(&dev->histo.ctx[drm_histogram_slot(&ts)]);
+	}
+#endif
+        clear_bit(0, &dev->context_flag);
+        wakeup(&dev->context_wait);
+        
+        return 0;
+}
+
+
+int
+tdfx_resctx(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
+{
+	drm_ctx_res_t	res;
+	drm_ctx_t	ctx;
+	int		i, error;
+
+	DRM_DEBUG("%d\n", DRM_RESERVED_CONTEXTS);
+	res = *(drm_ctx_res_t *) data;
+	if (res.count >= DRM_RESERVED_CONTEXTS) {
+		memset(&ctx, 0, sizeof(ctx));
+		for (i = 0; i < DRM_RESERVED_CONTEXTS; i++) {
+			ctx.handle = i;
+			error = copyout(&i, &res.contexts[i], sizeof(i));
+			if (error) return error;
+		}
+	}
+	res.count = DRM_RESERVED_CONTEXTS;
+	*(drm_ctx_res_t *) data = res;
+	return 0;
+}
+
+
+int
+tdfx_addctx(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
+{
+	drm_device_t	*dev	= kdev->si_drv1;
+	drm_ctx_t	ctx;
+
+	ctx = *(drm_ctx_t *) data;
+	if ((ctx.handle = tdfx_alloc_queue(dev)) == DRM_KERNEL_CONTEXT) {
+				/* Skip kernel's context and get a new one. */
+		ctx.handle = tdfx_alloc_queue(dev);
+	}
+	DRM_DEBUG("%d\n", ctx.handle);
+	*(drm_ctx_t *) data = ctx;
+	return 0;
+}
+
+int
+tdfx_modctx(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
+{
+	drm_ctx_t ctx;
+
+	ctx = *(drm_ctx_t *) data;
+	if (ctx.flags==_DRM_CONTEXT_PRESERVED)
+		tdfx_res_ctx.handle=ctx.handle;
+	return 0;
+}
+
+int
+tdfx_getctx(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
+{
+	drm_ctx_t ctx;
+
+	ctx = *(drm_ctx_t *) data;
+	/* This is 0, because we don't hanlde any context flags */
+	ctx.flags = 0;
+	*(drm_ctx_t *) data = ctx;
+	return 0;
+}
+
+int
+tdfx_switchctx(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
+{
+	drm_device_t	*dev	= kdev->si_drv1;
+	drm_ctx_t	ctx;
+
+	ctx = *(drm_ctx_t *) data;
+	DRM_DEBUG("%d\n", ctx.handle);
+	return tdfx_context_switch(dev, dev->last_context, ctx.handle);
+}
+
+int
+tdfx_newctx(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
+{
+	drm_device_t	*dev	= kdev->si_drv1;
+	drm_ctx_t	ctx;
+
+	ctx = *(drm_ctx_t *) data;
+	DRM_DEBUG("%d\n", ctx.handle);
+	tdfx_context_switch_complete(dev, ctx.handle);
+
+	return 0;
+}
+
+int
+tdfx_rmctx(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
+{
+	drm_ctx_t	ctx;
+
+	ctx = *(drm_ctx_t *) data;
+	DRM_DEBUG("%d\n", ctx.handle);
+				/* This is currently a noop because we
+				   don't reuse context values.  Perhaps we
+				   should? */
+	
+	return 0;
+}
diff --git a/bsd/tdfx/tdfx_drv.c b/bsd/tdfx/tdfx_drv.c
new file mode 100644
index 00000000..573cfcf1
--- /dev/null
+++ b/bsd/tdfx/tdfx_drv.c
@@ -0,0 +1,694 @@
+/* tdfx.c -- tdfx driver -*- c -*-
+ * Created: Thu Oct  7 10:38:32 1999 by faith@precisioninsight.com
+ * Revised: Tue Oct 12 08:51:35 1999 by faith@precisioninsight.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * 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
+ * PRECISION INSIGHT 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.
+ * 
+ * $PI$
+ * $XFree86$
+ *
+ */
+
+#include "drmP.h"
+#include "tdfx_drv.h"
+
+#include <pci/pcivar.h>
+
+MODULE_DEPEND(tdfx, drm, 1, 1, 1);
+
+#define TDFX_NAME	 "tdfx"
+#define TDFX_DESC	 "tdfx"
+#define TDFX_DATE	 "19991009"
+#define TDFX_MAJOR	 0
+#define TDFX_MINOR	 0
+#define TDFX_PATCHLEVEL  1
+
+static int tdfx_init(device_t nbdev);
+static void tdfx_cleanup(device_t nbdev);
+
+drm_ctx_t	              tdfx_res_ctx;
+
+static int tdfx_probe(device_t dev)
+{
+	const char *s = 0;
+
+	switch (pci_get_devid(dev)) {
+	case 0x0003121a:
+		s = "3Dfx Voodoo Banshee graphics accelerator";
+		break;
+		
+	case 0x0005121a:
+		s = "3Dfx Voodoo 3 graphics accelerator";
+		break;
+	}
+
+	if (s) {
+		device_set_desc(dev, s);
+		return 0;
+	}
+
+	return ENXIO;
+}
+
+static int tdfx_attach(device_t dev)
+{
+	tdfx_init(dev);
+	return 0;
+}
+
+static int tdfx_detach(device_t dev)
+{
+	tdfx_cleanup(dev);
+	return 0;
+}
+
+static device_method_t tdfx_methods[] = {
+	/* Device interface */
+	DEVMETHOD(device_probe,		tdfx_probe),
+	DEVMETHOD(device_attach,	tdfx_attach),
+	DEVMETHOD(device_detach,	tdfx_detach),
+
+	{ 0, 0 }
+};
+
+static driver_t tdfx_driver = {
+	"drm",
+	tdfx_methods,
+	sizeof(drm_device_t),
+};
+
+static devclass_t tdfx_devclass;
+#define TDFX_SOFTC(unit) \
+	((drm_device_t *) devclass_get_softc(tdfx_devclass, unit))
+
+DRIVER_MODULE(if_tdfx, pci, tdfx_driver, tdfx_devclass, 0, 0);
+
+#define CDEV_MAJOR	145
+				/* tdfx_drv.c */
+static d_open_t tdfx_open;
+static d_close_t tdfx_close;
+static d_ioctl_t tdfx_version;
+static d_ioctl_t tdfx_ioctl;
+static d_ioctl_t tdfx_lock;
+static d_ioctl_t tdfx_unlock;
+
+static struct cdevsw tdfx_cdevsw = {
+	/* open */	tdfx_open,
+	/* close */	tdfx_close,
+	/* read */	drm_read,
+	/* write */	drm_write,
+	/* ioctl */	tdfx_ioctl,
+	/* poll */	drm_poll,
+	/* mmap */	drm_mmap,
+	/* strategy */	nostrategy,
+	/* name */	"tdfx",
+	/* maj */	CDEV_MAJOR,
+	/* dump */	nodump,
+	/* psize */	nopsize,
+	/* flags */	D_TTY | D_TRACKCLOSE,
+	/* bmaj */	-1
+};
+
+static drm_ioctl_desc_t	      tdfx_ioctls[] = {
+	[DRM_IOCTL_NR(DRM_IOCTL_VERSION)]    = { tdfx_version,	  0, 0 },
+	[DRM_IOCTL_NR(DRM_IOCTL_GET_UNIQUE)] = { drm_getunique,	  0, 0 },
+	[DRM_IOCTL_NR(DRM_IOCTL_GET_MAGIC)]  = { drm_getmagic,	  0, 0 },
+	[DRM_IOCTL_NR(DRM_IOCTL_IRQ_BUSID)]  = { drm_irq_busid,	  0, 1 },
+
+	[DRM_IOCTL_NR(DRM_IOCTL_SET_UNIQUE)] = { drm_setunique,	  1, 1 },
+	[DRM_IOCTL_NR(DRM_IOCTL_BLOCK)]	     = { drm_block,	  1, 1 },
+	[DRM_IOCTL_NR(DRM_IOCTL_UNBLOCK)]    = { drm_unblock,	  1, 1 },
+	[DRM_IOCTL_NR(DRM_IOCTL_AUTH_MAGIC)] = { drm_authmagic,	  1, 1 },
+	[DRM_IOCTL_NR(DRM_IOCTL_ADD_MAP)]    = { drm_addmap,	  1, 1 },
+	
+	[DRM_IOCTL_NR(DRM_IOCTL_ADD_CTX)]    = { tdfx_addctx,	  1, 1 },
+	[DRM_IOCTL_NR(DRM_IOCTL_RM_CTX)]     = { tdfx_rmctx,	  1, 1 },
+	[DRM_IOCTL_NR(DRM_IOCTL_MOD_CTX)]    = { tdfx_modctx,	  1, 1 },
+	[DRM_IOCTL_NR(DRM_IOCTL_GET_CTX)]    = { tdfx_getctx,	  1, 0 },
+	[DRM_IOCTL_NR(DRM_IOCTL_SWITCH_CTX)] = { tdfx_switchctx,  1, 1 },
+	[DRM_IOCTL_NR(DRM_IOCTL_NEW_CTX)]    = { tdfx_newctx,	  1, 1 },
+	[DRM_IOCTL_NR(DRM_IOCTL_RES_CTX)]    = { tdfx_resctx,	  1, 0 },
+	[DRM_IOCTL_NR(DRM_IOCTL_ADD_DRAW)]   = { drm_adddraw,	  1, 1 },
+	[DRM_IOCTL_NR(DRM_IOCTL_RM_DRAW)]    = { drm_rmdraw,	  1, 1 },
+	[DRM_IOCTL_NR(DRM_IOCTL_LOCK)]	     = { tdfx_lock,	  1, 0 },
+	[DRM_IOCTL_NR(DRM_IOCTL_UNLOCK)]     = { tdfx_unlock,	  1, 0 },
+	[DRM_IOCTL_NR(DRM_IOCTL_FINISH)]     = { drm_finish,	  1, 0 },
+};
+#define TDFX_IOCTL_COUNT DRM_ARRAY_SIZE(tdfx_ioctls)
+
+static int
+tdfx_setup(drm_device_t *dev)
+{
+	int i;
+	
+	device_busy(dev->device);
+
+	atomic_set(&dev->ioctl_count, 0);
+	atomic_set(&dev->vma_count, 0);
+	dev->buf_use	  = 0;
+	atomic_set(&dev->buf_alloc, 0);
+
+	atomic_set(&dev->total_open, 0);
+	atomic_set(&dev->total_close, 0);
+	atomic_set(&dev->total_ioctl, 0);
+	atomic_set(&dev->total_irq, 0);
+	atomic_set(&dev->total_ctx, 0);
+	atomic_set(&dev->total_locks, 0);
+	atomic_set(&dev->total_unlocks, 0);
+	atomic_set(&dev->total_contends, 0);
+	atomic_set(&dev->total_sleeps, 0);
+
+	for (i = 0; i < DRM_HASH_SIZE; i++) {
+		dev->magiclist[i].head = NULL;
+		dev->magiclist[i].tail = NULL;
+	}
+	dev->maplist	    = NULL;
+	dev->map_count	    = 0;
+	dev->vmalist	    = NULL;
+	dev->lock.hw_lock   = NULL;
+	dev->lock.lock_queue = 0;
+	dev->queue_count    = 0;
+	dev->queue_reserved = 0;
+	dev->queue_slots    = 0;
+	dev->queuelist	    = NULL;
+	dev->irq	    = 0;
+	dev->context_flag   = 0;
+	dev->interrupt_flag = 0;
+	dev->dma            = 0;
+	dev->dma_flag	    = 0;
+	dev->last_context   = 0;
+	dev->last_switch    = 0;
+	dev->last_checked   = 0;
+	callout_init(&dev->timer);
+	dev->context_wait   = 0;
+
+	timespecclear(&dev->ctx_start);
+	timespecclear(&dev->lck_start);
+	
+	dev->buf_rp	  = dev->buf;
+	dev->buf_wp	  = dev->buf;
+	dev->buf_end	  = dev->buf + DRM_BSZ;
+	bzero(&dev->buf_sel, sizeof dev->buf_sel);
+	dev->buf_sigio	  = NULL;
+	dev->buf_readers  = 0;
+	dev->buf_writers  = 0;
+	dev->buf_selecting = 0;
+
+	tdfx_res_ctx.handle=-1;
+			
+	DRM_DEBUG("\n");
+			
+	/* The kernel's context could be created here, but is now created
+	   in drm_dma_enqueue.	This is more resource-efficient for
+	   hardware that does not do DMA, but may mean that
+	   drm_select_queue fails between the time the interrupt is
+	   initialized and the time the queues are initialized. */
+			
+	return 0;
+}
+
+
+static int
+tdfx_takedown(drm_device_t *dev)
+{
+	int		  i;
+	drm_magic_entry_t *pt, *next;
+	drm_map_t	  *map;
+	drm_vma_entry_t	  *vma, *vma_next;
+
+	DRM_DEBUG("\n");
+
+	lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, curproc);
+	callout_stop(&dev->timer);
+	
+	if (dev->devname) {
+		drm_free(dev->devname, strlen(dev->devname)+1, DRM_MEM_DRIVER);
+		dev->devname = NULL;
+	}
+	
+	if (dev->unique) {
+		drm_free(dev->unique, strlen(dev->unique)+1, DRM_MEM_DRIVER);
+		dev->unique = NULL;
+		dev->unique_len = 0;
+	}
+				/* Clear pid list */
+	for (i = 0; i < DRM_HASH_SIZE; i++) {
+		for (pt = dev->magiclist[i].head; pt; pt = next) {
+			next = pt->next;
+			drm_free(pt, sizeof(*pt), DRM_MEM_MAGIC);
+		}
+		dev->magiclist[i].head = dev->magiclist[i].tail = NULL;
+	}
+	
+				/* Clear vma list (only built for debugging) */
+	if (dev->vmalist) {
+		for (vma = dev->vmalist; vma; vma = vma_next) {
+			vma_next = vma->next;
+			drm_free(vma, sizeof(*vma), DRM_MEM_VMAS);
+		}
+		dev->vmalist = NULL;
+	}
+	
+				/* Clear map area and mtrr information */
+	if (dev->maplist) {
+		for (i = 0; i < dev->map_count; i++) {
+			map = dev->maplist[i];
+			switch (map->type) {
+			case _DRM_REGISTERS:
+			case _DRM_FRAME_BUFFER:
+#ifdef CONFIG_MTRR
+				if (map->mtrr >= 0) {
+					int retcode;
+					retcode = mtrr_del(map->mtrr,
+							   map->offset,
+							   map->size);
+					DRM_DEBUG("mtrr_del = %d\n", retcode);
+				}
+#endif
+				drm_ioremapfree(map->handle, map->size);
+				break;
+			case _DRM_SHM:
+				drm_free_pages((unsigned long)map->handle,
+					       drm_order(map->size)
+					       - PAGE_SHIFT,
+					       DRM_MEM_SAREA);
+				break;
+			case _DRM_AGP:
+				break; /* XXX */
+			}
+			drm_free(map, sizeof(*map), DRM_MEM_MAPS);
+		}
+		drm_free(dev->maplist,
+			 dev->map_count * sizeof(*dev->maplist),
+			 DRM_MEM_MAPS);
+		dev->maplist   = NULL;
+		dev->map_count = 0;
+	}
+	
+	if (dev->lock.hw_lock) {
+		dev->lock.hw_lock    = NULL; /* SHM removed */
+		dev->lock.pid	     = 0;
+		wakeup(&dev->lock.lock_queue);
+	}
+	lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc);
+
+	device_unbusy(dev->device);
+	
+	return 0;
+}
+
+/* tdfx_init is called via tdfx_attach at module load time, */
+
+static int
+tdfx_init(device_t nbdev)
+{
+	drm_device_t *dev = device_get_softc(nbdev);
+
+	DRM_DEBUG("\n");
+
+	memset((void *)dev, 0, sizeof(*dev));
+	simple_lock_init(&dev->count_lock);
+	lockinit(&dev->dev_lock, PZERO, "drmlk", 0, 0);
+	
+#if 0
+	drm_parse_options(tdfx);
+#endif
+
+	dev->device = nbdev;
+	dev->devnode = make_dev(&tdfx_cdevsw,
+				device_get_unit(nbdev),
+				DRM_DEV_UID,
+				DRM_DEV_GID,
+				DRM_DEV_MODE,
+				TDFX_NAME);
+	dev->name   = TDFX_NAME;
+
+	drm_mem_init();
+	drm_sysctl_init(dev);
+	TAILQ_INIT(&dev->files);
+
+	DRM_INFO("Initialized %s %d.%d.%d %s on minor %d\n",
+		 TDFX_NAME,
+		 TDFX_MAJOR,
+		 TDFX_MINOR,
+		 TDFX_PATCHLEVEL,
+		 TDFX_DATE,
+		 device_get_unit(nbdev));
+	
+	return 0;
+}
+
+/* tdfx_cleanup is called via tdfx_detach at module unload time. */
+
+static void
+tdfx_cleanup(device_t nbdev)
+{
+	drm_device_t *dev = device_get_softc(nbdev);
+
+	DRM_DEBUG("\n");
+	
+	drm_sysctl_cleanup(dev);
+	destroy_dev(dev->devnode);
+
+	DRM_INFO("Module unloaded\n");
+
+	device_busy(dev->device);
+	tdfx_takedown(dev);
+}
+
+static int
+tdfx_version(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
+{
+	drm_version_t version;
+	int	      len;
+
+	version = *(drm_version_t *) data;
+
+#define DRM_COPY(name,value)				\
+	len = strlen(value);				\
+	if (len > name##_len) len = name##_len;		\
+	name##_len = strlen(value);			\
+	if (len && name) {				\
+		int error = copyout(value, name, len);	\
+		if (error) return error;		\
+	}
+
+	version.version_major	   = TDFX_MAJOR;
+	version.version_minor	   = TDFX_MINOR;
+	version.version_patchlevel = TDFX_PATCHLEVEL;
+
+	DRM_COPY(version.name, TDFX_NAME);
+	DRM_COPY(version.date, TDFX_DATE);
+	DRM_COPY(version.desc, TDFX_DESC);
+
+	*(drm_version_t *) data = version;
+	return 0;
+}
+
+static int
+tdfx_open(dev_t kdev, int flags, int fmt, struct proc *p)
+{
+	drm_device_t  *dev    = TDFX_SOFTC(minor(kdev));
+	int	      retcode = 0;
+	
+	DRM_DEBUG("open_count = %d\n", dev->open_count);
+
+	device_busy(dev->device);
+	if (!(retcode = drm_open_helper(kdev, flags, fmt, p, dev))) {
+		atomic_inc(&dev->total_open);
+		simple_lock(&dev->count_lock);
+		if (!dev->open_count++) {
+			simple_unlock(&dev->count_lock);
+			retcode = tdfx_setup(dev);
+		}
+		simple_unlock(&dev->count_lock);
+	}
+	device_unbusy(dev->device);
+
+	return retcode;
+}
+
+static int
+tdfx_close(dev_t kdev, int flags, int fmt, struct proc *p)
+{
+	drm_device_t  *dev    = kdev->si_drv1;
+	int	      retcode = 0;
+
+	DRM_DEBUG("open_count = %d\n", dev->open_count);
+	if (!(retcode = drm_close(kdev, flags, fmt, p))) {
+		atomic_inc(&dev->total_close);
+		simple_lock(&dev->count_lock);
+		if (!--dev->open_count) {
+			if (atomic_read(&dev->ioctl_count) || dev->blocked) {
+				DRM_ERROR("Device busy: %d %d\n",
+					  atomic_read(&dev->ioctl_count),
+					  dev->blocked);
+				simple_unlock(&dev->count_lock);
+				return EBUSY;
+			}
+			simple_unlock(&dev->count_lock);
+			return tdfx_takedown(dev);
+		}
+		simple_unlock(&dev->count_lock);
+	}
+
+	return retcode;
+}
+
+/* tdfx_ioctl is called whenever a process performs an ioctl on /dev/drm. */
+
+static int
+tdfx_ioctl(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
+{
+	int		 nr	 = DRM_IOCTL_NR(cmd);
+	drm_device_t	 *dev	 = kdev->si_drv1;
+	drm_file_t       *priv;
+	int		 retcode = 0;
+	drm_ioctl_desc_t *ioctl;
+	d_ioctl_t	 *func;
+
+	DRM_DEBUG("dev=%p\n", dev);
+	priv = drm_find_file_by_proc(dev, p);
+	if (!priv) {
+		DRM_DEBUG("can't find authenticator\n");
+		return EINVAL;
+	}
+
+	atomic_inc(&dev->ioctl_count);
+	atomic_inc(&dev->total_ioctl);
+	++priv->ioctl_count;
+	
+	DRM_DEBUG("pid = %d, cmd = 0x%02lx, nr = 0x%02x, auth = %d\n",
+		  p->p_pid, cmd, nr, priv->authenticated);
+
+	switch (cmd) {
+	case FIONBIO:
+		atomic_dec(&dev->ioctl_count);
+		return 0;
+
+	case FIOASYNC:
+		atomic_dec(&dev->ioctl_count);
+		dev->flags |= FASYNC;
+		return 0;
+
+	case FIOSETOWN:
+		atomic_dec(&dev->ioctl_count);
+		return fsetown(*(int *)data, &dev->buf_sigio);
+
+	case FIOGETOWN:
+		atomic_dec(&dev->ioctl_count);
+		*(int *) data = fgetown(dev->buf_sigio);
+		return 0;
+	}
+
+	if (nr >= TDFX_IOCTL_COUNT) {
+		retcode = EINVAL;
+	} else {
+		ioctl	  = &tdfx_ioctls[nr];
+		func	  = ioctl->func;
+
+		if (!func) {
+			DRM_DEBUG("no function\n");
+			retcode = EINVAL;
+		} else if ((ioctl->root_only && suser(p))
+			    || (ioctl->auth_needed && !priv->authenticated)) {
+			retcode = EACCES;
+		} else {
+			retcode = (func)(kdev, cmd, data, flags, p);
+		}
+	}
+	
+	atomic_dec(&dev->ioctl_count);
+	return retcode;
+}
+
+static int
+tdfx_lock(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
+{
+        drm_device_t      *dev    = kdev->si_drv1;
+        int               ret   = 0;
+        drm_lock_t        lock;
+#if DRM_DMA_HISTOGRAM
+
+        getnanotime(&dev->lck_start);
+#endif
+
+	lock = *(drm_lock_t *) data;
+
+        if (lock.context == DRM_KERNEL_CONTEXT) {
+                DRM_ERROR("Process %d using kernel context %d\n",
+                          p->p_pid, lock.context);
+                return EINVAL;
+        }
+
+        DRM_DEBUG("%d (pid %d) requests lock (0x%08x), flags = 0x%08x\n",
+                  lock.context, p->p_pid, dev->lock.hw_lock->lock,
+                  lock.flags);
+
+#if 0
+				/* dev->queue_count == 0 right now for
+                                   tdfx.  FIXME? */
+        if (lock.context < 0 || lock.context >= dev->queue_count)
+                return EINVAL;
+#endif
+        
+        if (!ret) {
+#if 0
+                if (_DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock)
+                    != lock.context) {
+                        long j = ticks - dev->lock.lock_time;
+
+                        if (lock.context == tdfx_res_ctx.handle &&
+				j >= 0 && j < DRM_LOCK_SLICE) {
+                                /* Can't take lock if we just had it and
+                                   there is contention. */
+                                DRM_DEBUG("%d (pid %d) delayed j=%d dev=%d ticks=%d\n",
+					lock.context, p->p_pid, j, 
+					dev->lock.lock_time, ticks);
+				ret = tsleep(&never, PZERO|PCATCH, "drmlk1",
+					       DRM_LOCK_SLICE - j);
+				if (ret)
+					return ret;
+				DRM_DEBUG("ticks=%d\n", ticks);
+                        }
+                }
+#endif
+                for (;;) {
+                        if (!dev->lock.hw_lock) {
+                                /* Device has been unregistered */
+                                ret = EINTR;
+                                break;
+                        }
+                        if (drm_lock_take(&dev->lock.hw_lock->lock,
+                                          lock.context)) {
+                                dev->lock.pid       = p->p_pid;
+                                dev->lock.lock_time = ticks;
+                                atomic_inc(&dev->total_locks);
+                                break;  /* Got lock */
+                        }
+                        
+                                /* Contention */
+                        atomic_inc(&dev->total_sleeps);
+			ret = tsleep(&dev->lock.lock_queue,
+				       PZERO|PCATCH,
+				       "drmlk2",
+				       0);
+			if (ret)
+				break;
+                }
+        }
+
+#if 0
+	if (!ret && dev->last_context != lock.context &&
+		lock.context != tdfx_res_ctx.handle &&
+		dev->last_context != tdfx_res_ctx.handle) {
+		add_wait_queue(&dev->context_wait, &entry);
+	        current->state = TASK_INTERRUPTIBLE;
+                /* PRE: dev->last_context != lock.context */
+	        tdfx_context_switch(dev, dev->last_context, lock.context);
+		/* POST: we will wait for the context
+                   switch and will dispatch on a later call
+                   when dev->last_context == lock.context
+                   NOTE WE HOLD THE LOCK THROUGHOUT THIS
+                   TIME! */
+		current->policy |= SCHED_YIELD;
+	        schedule();
+	        current->state = TASK_RUNNING;
+	        remove_wait_queue(&dev->context_wait, &entry);
+	        if (signal_pending(current)) {
+	                ret = EINTR;
+	        } else if (dev->last_context != lock.context) {
+			DRM_ERROR("Context mismatch: %d %d\n",
+                        	dev->last_context, lock.context);
+	        }
+	}
+#endif
+
+        if (!ret) {
+                if (lock.flags & _DRM_LOCK_READY) {
+				/* Wait for space in DMA/FIFO */
+		}
+                if (lock.flags & _DRM_LOCK_QUIESCENT) {
+				/* Make hardware quiescent */
+#if 0
+                        tdfx_quiescent(dev);
+#endif
+		}
+        }
+
+#if 0
+	DRM_ERROR("pid = %5d, old counter = %5ld\n", 
+		p->p_pid, current->counter);
+#endif
+#if 0
+	while (current->counter > 25)
+		current->counter >>= 1; /* decrease time slice */
+	DRM_ERROR("pid = %5d, new counter = %5ld\n",
+		 p->p_pid, current->counter);
+#endif
+        DRM_DEBUG("%d %s\n", lock.context, ret ? "interrupted" : "has lock");
+
+#if DRM_DMA_HISTOGRAM
+	{
+	    struct timespec ts;
+	    getnanotime(&ts);
+	    timespecsub(&ts, &dev->lck_start);
+	    atomic_inc(&dev->histo.lhld[drm_histogram_slot(&ts)]);
+	}
+#endif
+        
+        return ret;
+}
+
+
+static int
+tdfx_unlock(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
+{
+	drm_device_t	  *dev	  = kdev->si_drv1;
+	drm_lock_t	  lock;
+
+	lock = *(drm_lock_t *) data;
+	
+	if (lock.context == DRM_KERNEL_CONTEXT) {
+		DRM_ERROR("Process %d using kernel context %d\n",
+			  p->p_pid, lock.context);
+		return EINVAL;
+	}
+
+	DRM_DEBUG("%d frees lock (%d holds)\n",
+		  lock.context,
+		  _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock));
+	atomic_inc(&dev->total_unlocks);
+	if (_DRM_LOCK_IS_CONT(dev->lock.hw_lock->lock))
+		atomic_inc(&dev->total_contends);
+	drm_lock_transfer(dev, &dev->lock.hw_lock->lock, DRM_KERNEL_CONTEXT);
+				/* FIXME: Try to send data to card here */
+	if (!dev->context_flag) {
+		if (drm_lock_free(dev, &dev->lock.hw_lock->lock,
+				  DRM_KERNEL_CONTEXT)) {
+			DRM_ERROR("\n");
+		}
+	}
+
+	return 0;
+}
diff --git a/bsd/tdfx/tdfx_drv.h b/bsd/tdfx/tdfx_drv.h
new file mode 100644
index 00000000..213f8ef1
--- /dev/null
+++ b/bsd/tdfx/tdfx_drv.h
@@ -0,0 +1,47 @@
+/* tdfx_drv.h -- Private header for tdfx driver -*- c -*-
+ * Created: Thu Oct  7 10:40:04 1999 by faith@precisioninsight.com
+ * Revised: Sat Oct  9 23:38:19 1999 by faith@precisioninsight.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * 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
+ * PRECISION INSIGHT 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.
+ * 
+ * $PI$
+ * $XFree86$
+ * 
+ */
+
+#ifndef _TDFX_DRV_H_
+#define _TDFX_DRV_H_
+
+				/* tdfx_context.c */
+
+extern d_ioctl_t tdfx_resctx;
+extern d_ioctl_t tdfx_addctx;
+extern d_ioctl_t tdfx_modctx;
+extern d_ioctl_t tdfx_getctx;
+extern d_ioctl_t tdfx_switchctx;
+extern d_ioctl_t tdfx_newctx;
+extern d_ioctl_t tdfx_rmctx;
+
+extern int  tdfx_context_switch(drm_device_t *dev, int old, int new);
+extern int  tdfx_context_switch_complete(drm_device_t *dev, int new);
+#endif