- Clean up the way customization of the templates is done.ati-5-0-1-20010220-head

- Fix old-style DMA for gamma driver (please test).
- Pull out IRQ handling into drm_dma.h (please test on i810, gamma).
- Lots of general cleanups, remove compiler warnings etc.

15 files changed, 589 insertions, 444 deletions

diff --git a/linux-core/drmP.h b/linux-core/drmP.h
index 58d98f504..4032689a2 100644
--- a/linux-core/drmP.h
+++ b/linux-core/drmP.h
@@ -83,15 +83,24 @@
 #ifndef __HAVE_MTRR
 #define __HAVE_MTRR		0
 #endif
+#ifndef __HAVE_CTX_BITMAP
+#define __HAVE_CTX_BITMAP	0
+#endif
 #ifndef __HAVE_DMA
 #define __HAVE_DMA		0
 #endif
+#ifndef __HAVE_DMA_IRQ
+#define __HAVE_DMA_IRQ		0
+#endif
 #ifndef __HAVE_DMA_WAITLIST
 #define __HAVE_DMA_WAITLIST	0
 #endif
 #ifndef __HAVE_DMA_FREELIST
 #define __HAVE_DMA_FREELIST	0
 #endif
+#ifndef __HAVE_DMA_HISTOGRAM
+#define __HAVE_DMA_HISTOGRAM	0
+#endif
 
 #define __REALLY_HAVE_AGP	(__HAVE_AGP && (defined(CONFIG_AGP) || \
 						defined(CONFIG_AGP_MODULE)))
@@ -103,7 +112,6 @@
 
 #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	  */
@@ -627,7 +635,7 @@ typedef struct drm_device {
 	struct tq_struct  tq;
 	cycles_t	  ctx_start;
 	cycles_t	  lck_start;
-#if DRM_DMA_HISTOGRAM
+#if __HAVE_DMA_HISTOGRAM
 	drm_histogram_t	  histo;
 #endif
 
@@ -651,9 +659,11 @@ typedef struct drm_device {
 } drm_device_t;
 
 
-				/* Internal function definitions */
+/* ================================================================
+ * Internal function definitions
+ */
 
-				/* Misc. support (init.c) */
+				/* Misc. support (drm_init.h) */
 extern int	     DRM(flags);
 extern void	     DRM(parse_options)( char *s );
 extern int           DRM(cpu_valid)( void );
@@ -670,7 +680,7 @@ extern int           DRM(lock)(struct inode *inode, struct file *filp,
 extern int           DRM(unlock)(struct inode *inode, struct file *filp,
 				 unsigned int cmd, unsigned long arg);
 
-				/* Device support (fops.c) */
+				/* Device support (drm_fops.h) */
 extern int	     DRM(open_helper)(struct inode *inode, struct file *filp,
 				      drm_device_t *dev);
 extern int	     DRM(flush)(struct file *filp);
@@ -682,7 +692,7 @@ extern int	     DRM(write_string)(drm_device_t *dev, const char *s);
 extern unsigned int  DRM(poll)(struct file *filp,
 			       struct poll_table_struct *wait);
 
-				/* Mapping support (vm.c) */
+				/* Mapping support (drm_vm.h) */
 #if LINUX_VERSION_CODE < 0x020317
 extern unsigned long DRM(vm_nopage)(struct vm_area_struct *vma,
 				    unsigned long address,
@@ -717,17 +727,7 @@ extern int	     DRM(mmap_dma)(struct file *filp,
 				   struct vm_area_struct *vma);
 extern int	     DRM(mmap)(struct file *filp, struct vm_area_struct *vma);
 
-
-				/* Proc support (proc.c) */
-extern struct proc_dir_entry *drm_proc_init(drm_device_t *dev,
-					    int minor,
-					    struct proc_dir_entry *root,
-					    struct proc_dir_entry **dev_root);
-extern int          drm_proc_cleanup(int minor,
-                                     struct proc_dir_entry *root,
-                                     struct proc_dir_entry *dev_root);
-
-				/* Memory management support (memory.c) */
+				/* Memory management support (drm_memory.h) */
 extern void	     DRM(mem_init)(void);
 extern int	     DRM(mem_info)(char *buf, char **start, off_t offset,
 				   int request, int *eof, void *data);
@@ -750,7 +750,7 @@ extern int           DRM(bind_agp)(agp_memory *handle, unsigned int start);
 extern int           DRM(unbind_agp)(agp_memory *handle);
 #endif
 
-				/* Misc. IOCTL support (ioctl.c) */
+				/* Misc. IOCTL support (drm_ioctl.h) */
 extern int	     DRM(irq_busid)(struct inode *inode, struct file *filp,
 				    unsigned int cmd, unsigned long arg);
 extern int	     DRM(getunique)(struct inode *inode, struct file *filp,
@@ -764,7 +764,7 @@ extern int	     DRM(getclient)(struct inode *inode, struct file *filp,
 extern int	     DRM(getstats)(struct inode *inode, struct file *filp,
 				   unsigned int cmd, unsigned long arg);
 
-				/* Context IOCTL support (context.c) */
+				/* Context IOCTL support (drm_context.h) */
 extern int	     DRM(resctx)( struct inode *inode, struct file *filp,
 				  unsigned int cmd, unsigned long arg );
 extern int	     DRM(addctx)( struct inode *inode, struct file *filp,
@@ -783,14 +783,19 @@ extern int	     DRM(rmctx)( struct inode *inode, struct file *filp,
 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);
 
-				/* Drawable IOCTL support (drawable.c) */
+#if __HAVE_CTX_BITMAP
+extern int	     DRM(ctxbitmap_init)( drm_device_t *dev );
+extern void	     DRM(ctxbitmap_cleanup)( drm_device_t *dev );
+#endif
+
+				/* Drawable IOCTL support (drm_drawable.h) */
 extern int	     DRM(adddraw)(struct inode *inode, struct file *filp,
 				  unsigned int cmd, unsigned long arg);
 extern int	     DRM(rmdraw)(struct inode *inode, struct file *filp,
 				 unsigned int cmd, unsigned long arg);
 
 
-				/* Authentication IOCTL support (auth.c) */
+				/* Authentication IOCTL support (drm_auth.h) */
 extern int	     DRM(add_magic)(drm_device_t *dev, drm_file_t *priv,
 				    drm_magic_t magic);
 extern int	     DRM(remove_magic)(drm_device_t *dev, drm_magic_t magic);
@@ -800,7 +805,7 @@ extern int	     DRM(authmagic)(struct inode *inode, struct file *filp,
 				    unsigned int cmd, unsigned long arg);
 
 
-				/* Locking IOCTL support (lock.c) */
+				/* Locking IOCTL support (drm_lock.h) */
 extern int	     DRM(block)(struct inode *inode, struct file *filp,
 				unsigned int cmd, unsigned long arg);
 extern int	     DRM(unblock)(struct inode *inode, struct file *filp,
@@ -821,17 +826,11 @@ extern int	     DRM(flush_block_and_flush)(drm_device_t *dev, int context,
 						drm_lock_flags_t flags);
 extern int           DRM(notifier)(void *priv);
 
-				/* Context Bitmap support (ctxbitmap.c) */
-extern int	     DRM(ctxbitmap_init)( drm_device_t *dev );
-extern void	     DRM(ctxbitmap_cleanup)( drm_device_t *dev );
-
-
-
-
-				/* Buffer management support (bufs.c) */
+				/* Buffer management support (drm_bufs.h) */
 extern int	     DRM(order)( unsigned long size );
 extern int	     DRM(addmap)( struct inode *inode, struct file *filp,
 				  unsigned int cmd, unsigned long arg );
+#if __HAVE_DMA
 extern int	     DRM(addbufs)( struct inode *inode, struct file *filp,
 				   unsigned int cmd, unsigned long arg );
 extern int	     DRM(infobufs)( struct inode *inode, struct file *filp,
@@ -843,27 +842,37 @@ extern int	     DRM(freebufs)( struct inode *inode, struct file *filp,
 extern int	     DRM(mapbufs)( struct inode *inode, struct file *filp,
 				   unsigned int cmd, unsigned long arg );
 
-
-#if __HAVE_DMA
-				/* DMA support (dma.c) */
+				/* DMA support (drm_dma.h) */
 extern int	     DRM(dma_setup)(drm_device_t *dev);
 extern void	     DRM(dma_takedown)(drm_device_t *dev);
 extern void	     DRM(free_buffer)(drm_device_t *dev, drm_buf_t *buf);
 extern void	     DRM(reclaim_buffers)(drm_device_t *dev, pid_t pid);
+#if __HAVE_OLD_DMA
+/* GH: This is a dirty hack for now...
+ */
 extern void	     DRM(clear_next_buffer)(drm_device_t *dev);
 extern int	     DRM(select_queue)(drm_device_t *dev,
 				       void (*wrapper)(unsigned long));
 extern int	     DRM(dma_enqueue)(drm_device_t *dev, drm_dma_t *dma);
-#if 0
 extern int	     DRM(dma_get_buffers)(drm_device_t *dev, drm_dma_t *dma);
 #endif
+#if __HAVE_DMA_IRQ
+extern int           DRM(control)( struct inode *inode, struct file *filp,
+				   unsigned int cmd, unsigned long arg );
+extern int           DRM(irq_install)( drm_device_t *dev, int irq );
+extern int           DRM(irq_uninstall)( drm_device_t *dev );
+extern void          DRM(dma_service)( int irq, void *device,
+				       struct pt_regs *regs );
+#if __HAVE_DMA_IRQ_BH
+extern void          DRM(dma_immediate_bh)( void *dev );
+#endif
+#endif
 #if DRM_DMA_HISTOGRAM
 extern int	     DRM(histogram_slot)(unsigned long count);
 extern void	     DRM(histogram_compute)(drm_device_t *dev, drm_buf_t *buf);
 #endif
-#endif
 
-				/* Buffer list management support (lists.c) */
+				/* Buffer list support (drm_lists.h) */
 #if __HAVE_DMA_WAITLIST
 extern int	     DRM(waitlist_create)(drm_waitlist_t *bl, int count);
 extern int	     DRM(waitlist_destroy)(drm_waitlist_t *bl);
@@ -877,9 +886,10 @@ extern int	     DRM(freelist_put)(drm_device_t *dev, drm_freelist_t *bl,
 				       drm_buf_t *buf);
 extern drm_buf_t     *DRM(freelist_get)(drm_freelist_t *bl, int block);
 #endif
+#endif /* __HAVE_DMA */
 
 #if __REALLY_HAVE_AGP
-				/* AGP/GART support (agpsupport.c) */
+				/* AGP/GART support (drm_agpsupport.h) */
 extern drm_agp_head_t *DRM(agp_init)(void);
 extern void           DRM(agp_uninit)(void);
 extern int            DRM(agp_acquire)(struct inode *inode, struct file *filp,
@@ -903,6 +913,7 @@ extern agp_memory     *DRM(agp_allocate_memory)(size_t pages, u32 type);
 extern int            DRM(agp_free_memory)(agp_memory *handle);
 extern int            DRM(agp_bind_memory)(agp_memory *handle, off_t start);
 extern int            DRM(agp_unbind_memory)(agp_memory *handle);
+#endif
 
 				/* Stub support (drm_stub.h) */
 int                   DRM(stub_register)(const char *name,
@@ -910,6 +921,14 @@ int                   DRM(stub_register)(const char *name,
 					 drm_device_t *dev);
 int                   DRM(stub_unregister)(int minor);
 
-#endif
-#endif
+				/* Proc support (drm_proc.h) */
+extern struct proc_dir_entry *DRM(proc_init)(drm_device_t *dev,
+					     int minor,
+					     struct proc_dir_entry *root,
+					     struct proc_dir_entry **dev_root);
+extern int            DRM(proc_cleanup)(int minor,
+					struct proc_dir_entry *root,
+					struct proc_dir_entry *dev_root);
+
+#endif /* __KERNEL__ */
 #endif
diff --git a/linux-core/drm_bufs.c b/linux-core/drm_bufs.c
index f2613a985..38ea1ff05 100644
--- a/linux-core/drm_bufs.c
+++ b/linux-core/drm_bufs.c
@@ -252,7 +252,7 @@ int DRM(addbufs_agp)( struct inode *inode, struct file *filp,
 		buf->order   = order;
 		buf->used    = 0;
 
-		buf->offset  = (dma->byte_count + offset); /* ******** */
+		buf->offset  = (dma->byte_count + offset);
 		buf->bus_address = agp_offset + offset;
 		buf->address = (void *)(agp_offset + offset);
 		buf->next    = NULL;
@@ -266,7 +266,7 @@ int DRM(addbufs_agp)( struct inode *inode, struct file *filp,
 					       DRM_MEM_BUFS );
 		memset( buf->dev_private, 0, buf->dev_priv_size );
 
-#if DRM_DMA_HISTOGRAM
+#if __HAVE_DMA_HISTOGRAM
 		buf->time_queued = 0;
 		buf->time_dispatched = 0;
 		buf->time_completed = 0;
@@ -297,17 +297,12 @@ int DRM(addbufs_agp)( struct inode *inode, struct file *filp,
 	DRM_DEBUG( "dma->buf_count : %d\n", dma->buf_count );
 	DRM_DEBUG( "entry->buf_count : %d\n", entry->buf_count );
 
-/* GH: Please leave this disabled for now.  I need to fix this properly...
- */
-#if 0
-	/* FIXME: work this mess out...
-	 */
+#if __HAVE_DMA_FREELIST
 	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] );
 	}
 #endif
-
 	up( &dev->struct_sem );
 
 	request.count = entry->buf_count;
@@ -443,11 +438,11 @@ int DRM(addbufs_pci)( struct inode *inode, struct file *filp,
 			buf->pending = 0;
 			init_waitqueue_head( &buf->dma_wait );
 			buf->pid     = 0;
-#if DRM_DMA_HISTOGRAM
+#if __HAVE_DMA_HISTOGRAM
 			buf->time_queued     = 0;
 			buf->time_dispatched = 0;
 			buf->time_completed  = 0;
-			buf->time_freed	     = 0;
+			buf->time_freed      = 0;
 #endif
 			DRM_DEBUG( "buffer %d @ %p\n",
 				   entry->buf_count, buf->address );
@@ -469,17 +464,12 @@ int DRM(addbufs_pci)( struct inode *inode, struct file *filp,
 	dma->page_count += entry->seg_count << page_order;
 	dma->byte_count += PAGE_SIZE * (entry->seg_count << page_order);
 
-/* GH: Please leave this disabled for now.  I need to fix this properly...
- */
-#if 0
-	/* FIXME: work this mess out...
-	 */
+#if __HAVE_DMA_FREELIST
 	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] );
 	}
 #endif
-
 	up( &dev->struct_sem );
 
 	request.count = entry->buf_count;
diff --git a/linux-core/drm_context.c b/linux-core/drm_context.c
index 6bbcfca8b..e2b6170a8 100644
--- a/linux-core/drm_context.c
+++ b/linux-core/drm_context.c
@@ -29,6 +29,11 @@
  *    Gareth Hughes <gareth@valinux.com>
  */
 
+#define __NO_VERSION__
+#include "drmP.h"
+
+#if __HAVE_CTX_BITMAP
+
 /* ================================================================
  * Context bitmap support
  */
@@ -98,7 +103,7 @@ int DRM(context_switch)( drm_device_t *dev, int old, int new )
                 return -EBUSY;
         }
 
-#if DRM_DMA_HISTOGRAM
+#if __HAVE_DMA_HISTOGRAM
         dev->ctx_start = get_cycles();
 #endif
 
@@ -131,7 +136,7 @@ int DRM(context_switch_complete)( drm_device_t *dev, int new )
 				/* If a context switch is ever initiated
                                    when the kernel holds the lock, release
                                    that lock here. */
-#if DRM_DMA_HISTOGRAM
+#if __HAVE_DMA_HISTOGRAM
         atomic_inc( &dev->histo.ctx[DRM(histogram_slot)(get_cycles()
 							- dev->ctx_start)] );
 
@@ -268,3 +273,376 @@ int DRM(rmctx)( struct inode *inode, struct file *filp,
 
 	return 0;
 }
+
+
+#else /* __HAVE_CTX_BITMAP */
+
+/* ================================================================
+ * Old-style context support
+ */
+
+
+int DRM(context_switch)(drm_device_t *dev, int old, int new)
+{
+	char	    buf[64];
+	drm_queue_t *q;
+
+#if 0
+	atomic_inc(&dev->total_ctx);
+#endif
+
+	if (test_and_set_bit(0, &dev->context_flag)) {
+		DRM_ERROR("Reentering -- FIXME\n");
+		return -EBUSY;
+	}
+
+#if __HAVE_DMA_HISTOGRAM
+	dev->ctx_start = get_cycles();
+#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  = jiffies;
+
+	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 __HAVE_DMA_HISTOGRAM
+	atomic_inc(&dev->histo.ctx[DRM(histogram_slot)(get_cycles()
+						      - dev->ctx_start)]);
+
+#endif
+	clear_bit(0, &dev->context_flag);
+	wake_up_interruptible(&dev->context_wait);
+
+	return 0;
+}
+
+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);
+
+	init_waitqueue_head(&q->write_queue);
+	init_waitqueue_head(&q->read_queue);
+	init_waitqueue_head(&q->flush_queue);
+
+	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 */
+	down(&dev->struct_sem);
+
+	queue = gamma_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) {
+			up(&dev->struct_sem);
+			DRM_DEBUG("out of memory\n");
+			return -ENOMEM;
+		}
+	}
+	dev->queuelist[dev->queue_count-1] = queue;
+
+	up(&dev->struct_sem);
+	DRM_DEBUG("%d (new)\n", dev->queue_count - 1);
+	return dev->queue_count - 1;
+}
+
+int DRM(resctx)(struct inode *inode, struct file *filp,
+		unsigned int cmd, unsigned long arg)
+{
+	drm_ctx_res_t	res;
+	drm_ctx_t	ctx;
+	int		i;
+
+	DRM_DEBUG("%d\n", DRM_RESERVED_CONTEXTS);
+	if (copy_from_user(&res, (drm_ctx_res_t *)arg, sizeof(res)))
+		return -EFAULT;
+	if (res.count >= DRM_RESERVED_CONTEXTS) {
+		memset(&ctx, 0, sizeof(ctx));
+		for (i = 0; i < DRM_RESERVED_CONTEXTS; i++) {
+			ctx.handle = i;
+			if (copy_to_user(&res.contexts[i],
+					 &i,
+					 sizeof(i)))
+				return -EFAULT;
+		}
+	}
+	res.count = DRM_RESERVED_CONTEXTS;
+	if (copy_to_user((drm_ctx_res_t *)arg, &res, sizeof(res)))
+		return -EFAULT;
+	return 0;
+}
+
+int DRM(addctx)(struct inode *inode, struct file *filp,
+		unsigned int cmd, unsigned long arg)
+{
+	drm_file_t	*priv	= filp->private_data;
+	drm_device_t	*dev	= priv->dev;
+	drm_ctx_t	ctx;
+
+	if (copy_from_user(&ctx, (drm_ctx_t *)arg, sizeof(ctx)))
+		return -EFAULT;
+	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);
+	if (copy_to_user((drm_ctx_t *)arg, &ctx, sizeof(ctx)))
+		return -EFAULT;
+	return 0;
+}
+
+int DRM(modctx)(struct inode *inode, struct file *filp,
+		unsigned int cmd, unsigned long arg)
+{
+	drm_file_t	*priv	= filp->private_data;
+	drm_device_t	*dev	= priv->dev;
+	drm_ctx_t	ctx;
+	drm_queue_t	*q;
+
+	if (copy_from_user(&ctx, (drm_ctx_t *)arg, sizeof(ctx)))
+		return -EFAULT;
+
+	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)(struct inode *inode, struct file *filp,
+		unsigned int cmd, unsigned long arg)
+{
+	drm_file_t	*priv	= filp->private_data;
+	drm_device_t	*dev	= priv->dev;
+	drm_ctx_t	ctx;
+	drm_queue_t	*q;
+
+	if (copy_from_user(&ctx, (drm_ctx_t *)arg, sizeof(ctx)))
+		return -EFAULT;
+
+	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);
+
+	if (copy_to_user((drm_ctx_t *)arg, &ctx, sizeof(ctx)))
+		return -EFAULT;
+
+	return 0;
+}
+
+int DRM(switchctx)(struct inode *inode, struct file *filp,
+		   unsigned int cmd, unsigned long arg)
+{
+	drm_file_t	*priv	= filp->private_data;
+	drm_device_t	*dev	= priv->dev;
+	drm_ctx_t	ctx;
+
+	if (copy_from_user(&ctx, (drm_ctx_t *)arg, sizeof(ctx)))
+		return -EFAULT;
+	DRM_DEBUG("%d\n", ctx.handle);
+	return DRM(context_switch)(dev, dev->last_context, ctx.handle);
+}
+
+int DRM(newctx)(struct inode *inode, struct file *filp,
+		unsigned int cmd, unsigned long arg)
+{
+	drm_file_t	*priv	= filp->private_data;
+	drm_device_t	*dev	= priv->dev;
+	drm_ctx_t	ctx;
+
+	if (copy_from_user(&ctx, (drm_ctx_t *)arg, sizeof(ctx)))
+		return -EFAULT;
+	DRM_DEBUG("%d\n", ctx.handle);
+	DRM(context_switch_complete)(dev, ctx.handle);
+
+	return 0;
+}
+
+int DRM(rmctx)(struct inode *inode, struct file *filp,
+	       unsigned int cmd, unsigned long arg)
+{
+	drm_file_t	*priv	= filp->private_data;
+	drm_device_t	*dev	= priv->dev;
+	drm_ctx_t	ctx;
+	drm_queue_t	*q;
+	drm_buf_t	*buf;
+
+	if (copy_from_user(&ctx, (drm_ctx_t *)arg, sizeof(ctx)))
+		return -EFAULT;
+	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) */
+
+	while (test_and_set_bit(0, &dev->interrupt_flag)) {
+		schedule();
+		if (signal_pending(current)) {
+			clear_bit(0, &dev->interrupt_flag);
+			return -EINTR;
+		}
+	}
+				/* Remove queued buffers */
+	while ((buf = DRM(waitlist_get)(&q->waitlist))) {
+		DRM(free_buffer)(dev, buf);
+	}
+	clear_bit(0, &dev->interrupt_flag);
+
+				/* Wakeup blocked processes */
+	wake_up_interruptible(&q->read_queue);
+	wake_up_interruptible(&q->write_queue);
+	wake_up_interruptible(&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;
+}
+
+#endif /* __HAVE_CTX_BITMAP */
diff --git a/linux-core/drm_dma.c b/linux-core/drm_dma.c
index 35eb896e2..e715bd416 100644
--- a/linux-core/drm_dma.c
+++ b/linux-core/drm_dma.c
@@ -118,7 +118,7 @@ void DRM(dma_takedown)(drm_device_t *dev)
 }
 
 
-#if DRM_DMA_HISTOGRAM
+#if __HAVE_DMA_HISTOGRAM
 /* This is slow, but is useful for debugging. */
 int DRM(histogram_slot)(unsigned long count)
 {
@@ -182,7 +182,7 @@ void DRM(free_buffer)(drm_device_t *dev, drm_buf_t *buf)
 	buf->pending  = 0;
 	buf->pid      = 0;
 	buf->used     = 0;
-#if DRM_DMA_HISTOGRAM
+#if __HAVE_DMA_HISTOGRAM
 	buf->time_completed = get_cycles();
 #endif
 
@@ -231,85 +231,6 @@ void DRM(reclaim_buffers)(drm_device_t *dev, pid_t pid)
  */
 #if __HAVE_OLD_DMA
 
-int drm_context_switch(drm_device_t *dev, int old, int new)
-{
-	char	    buf[64];
-	drm_queue_t *q;
-
-#if 0
-	atomic_inc(&dev->total_ctx);
-#endif
-
-	if (test_and_set_bit(0, &dev->context_flag)) {
-		DRM_ERROR("Reentering -- FIXME\n");
-		return -EBUSY;
-	}
-
-#if DRM_DMA_HISTOGRAM
-	dev->ctx_start = get_cycles();
-#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  = jiffies;
-
-	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
-	atomic_inc(&dev->histo.ctx[DRM(histogram_slot)(get_cycles()
-						      - dev->ctx_start)]);
-
-#endif
-	clear_bit(0, &dev->context_flag);
-	wake_up_interruptible(&dev->context_wait);
-
-	return 0;
-}
-
 void DRM(clear_next_buffer)(drm_device_t *dev)
 {
 	drm_device_dma_t *dma = dev->dma;
@@ -571,6 +492,103 @@ int DRM(dma_get_buffers)(drm_device_t *dev, drm_dma_t *dma)
 	return 0;
 }
 
-#endif
+#endif /* __HAVE_OLD_DMA */
+
+
+#if __HAVE_DMA_IRQ
+
+int DRM(irq_install)( drm_device_t *dev, int irq )
+{
+	int ret;
+
+	if ( !irq )
+		return -EINVAL;
+
+	down( &dev->struct_sem );
+	if ( dev->irq ) {
+		up( &dev->struct_sem );
+		return -EBUSY;
+	}
+	dev->irq = irq;
+	up( &dev->struct_sem );
+
+	DRM_DEBUG( "%s: irq=%d\n", __FUNCTION__, 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 __HAVE_DMA_IRQ_BH
+	INIT_LIST_HEAD( &dev->tq.list );
+	dev->tq.sync = 0;
+	dev->tq.routine = DRM(dma_immediate_bh);
+	dev->tq.data = dev;
 #endif
+
+				/* Before installing handler */
+	DRIVER_PREINSTALL();
+
+				/* Install handler */
+	ret = request_irq( dev->irq, DRM(dma_service),
+			   0, dev->devname, dev );
+	if ( ret < 0 ) {
+		down( &dev->struct_sem );
+		dev->irq = 0;
+		up( &dev->struct_sem );
+		return ret;
+	}
+
+				/* After installing handler */
+	DRIVER_POSTINSTALL();
+
+	return 0;
+}
+
+int DRM(irq_uninstall)( drm_device_t *dev )
+{
+	int irq;
+
+	down( &dev->struct_sem );
+	irq = dev->irq;
+	dev->irq = 0;
+	up( &dev->struct_sem );
+
+	if ( !irq )
+		return -EINVAL;
+
+	DRM_DEBUG( "%s: irq=%d\n", __FUNCTION__, irq );
+
+	DRIVER_UNINSTALL();
+
+	free_irq( irq, dev );
+
+	return 0;
+}
+
+int DRM(control)( struct inode *inode, struct file *filp,
+		  unsigned int cmd, unsigned long arg )
+{
+	drm_file_t *priv = filp->private_data;
+	drm_device_t *dev = priv->dev;
+	drm_control_t ctl;
+
+	if ( copy_from_user( &ctl, (drm_control_t *)arg, sizeof(ctl) ) )
+		return -EFAULT;
+
+	switch ( ctl.func ) {
+	case DRM_INST_HANDLER:
+		return DRM(irq_install)( dev, ctl.irq );
+	case DRM_UNINST_HANDLER:
+		return DRM(irq_uninstall)( dev );
+	default:
+		return -EINVAL;
+	}
+}
+
+#endif /* __HAVE_DMA_IRQ */
+
+#endif /* __HAVE_DMA */
diff --git a/linux-core/drm_drv.c b/linux-core/drm_drv.c
index b24d213ec..71f52276f 100644
--- a/linux-core/drm_drv.c
+++ b/linux-core/drm_drv.c
@@ -687,7 +687,7 @@ int DRM(release)( struct inode *inode, struct file *filp )
 					DRM_KERNEL_CONTEXT );
 		}
 	}
-#else
+#elif __HAVE_DMA
 	DRM(reclaim_buffers)( dev, priv->pid );
 #endif
 
@@ -794,7 +794,7 @@ int DRM(lock)( struct inode *inode, struct file *filp,
 #if __HAVE_MULTIPLE_DMA_QUEUES
 	drm_queue_t *q;
 #endif
-#if DRM_DMA_HISTOGRAM
+#if __HAVE_DMA_HISTOGRAM
         cycles_t start;
 
         dev->lck_start = start = get_cycles();
@@ -882,7 +882,7 @@ int DRM(lock)( struct inode *inode, struct file *filp,
 
         DRM_DEBUG( "%d %s\n", lock.context, ret ? "interrupted" : "has lock" );
 
-#if DRM_DMA_HISTOGRAM
+#if __HAVE_DMA_HISTOGRAM
         atomic_inc(&dev->histo.lacq[DRM(histogram_slot)(get_cycles()-start)]);
 #endif
         return ret;
diff --git a/linux-core/drm_fops.c b/linux-core/drm_fops.c
index d646f3188..dd5747669 100644
--- a/linux-core/drm_fops.c
+++ b/linux-core/drm_fops.c
@@ -83,50 +83,6 @@ int DRM(flush)(struct file *filp)
 	return 0;
 }
 
-#if 0
-/* drm_release is called whenever a process closes /dev/drm*.  Linux calls
-   this only if any mappings have been closed. */
-
-int drm_release(struct inode *inode, struct file *filp)
-{
-	drm_file_t    *priv   = filp->private_data;
-	drm_device_t  *dev    = priv->dev;
-
-	DRM_DEBUG("pid = %d, device = 0x%x, open_count = %d\n",
-		  current->pid, dev->device, dev->open_count);
-
-	if (dev->lock.hw_lock
-	    && _DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)
-	    && dev->lock.pid == current->pid) {
-		DRM_ERROR("Process %d dead, freeing lock for context %d\n",
-			  current->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);
-
-	drm_fasync(-1, filp, 0);
-
-	down(&dev->struct_sem);
-	if (priv->prev) priv->prev->next = priv->next;
-	else		dev->file_first	 = priv->next;
-	if (priv->next) priv->next->prev = priv->prev;
-	else		dev->file_last	 = priv->prev;
-	up(&dev->struct_sem);
-
-	drm_free(priv, sizeof(*priv), DRM_MEM_FILES);
-
-	return 0;
-}
-#endif
-
 int DRM(fasync)(int fd, struct file *filp, int on)
 {
 	drm_file_t    *priv   = filp->private_data;
diff --git a/linux-core/drm_proc.c b/linux-core/drm_proc.c
index 634673d94..ee9c0cbc8 100644
--- a/linux-core/drm_proc.c
+++ b/linux-core/drm_proc.c
@@ -50,7 +50,7 @@ static int	   DRM(bufs_info)(char *buf, char **start, off_t offset,
 static int	   DRM(vma_info)(char *buf, char **start, off_t offset,
 				 int request, int *eof, void *data);
 #endif
-#if DRM_DMA_HISTOGRAM
+#if __HAVE_DMA_HISTOGRAM
 static int	   DRM(histo_info)(char *buf, char **start, off_t offset,
 				   int request, int *eof, void *data);
 #endif
@@ -68,7 +68,7 @@ struct drm_proc_list {
 #if DRM_DEBUG_CODE
 	{ "vma",     DRM(vma_info)     },
 #endif
-#if DRM_DMA_HISTOGRAM
+#if __HAVE_DMA_HISTOGRAM
 	{ "histo",   DRM(histo_info)   },
 #endif
 };
@@ -481,7 +481,7 @@ static int DRM(vma_info)(char *buf, char **start, off_t offset, int request,
 #endif
 
 
-#if DRM_DMA_HISTOGRAM
+#if __HAVE_DMA_HISTOGRAM
 static int DRM(_histo_info)(char *buf, char **start, off_t offset, int request,
 			    int *eof, void *data)
 {
diff --git a/linux-core/drm_stub.c b/linux-core/drm_stub.c
index ed37af4da..a6a39d869 100644
--- a/linux-core/drm_stub.c
+++ b/linux-core/drm_stub.c
@@ -1,4 +1,4 @@
-/* drm_stub.c -- -*- linux-c -*-
+/* drm_stub.h -- -*- linux-c -*-
  * Created: Fri Jan 19 10:48:35 2001 by faith@acm.org
  *
  * Copyright 2001 VA Linux Systems, Inc., Sunnyvale, California.
@@ -28,6 +28,9 @@
  *
  */
 
+#define __NO_VERSION__
+#include "drmP.h"
+
 #define DRM_STUB_MAXCARDS 16	/* Enough for one machine */
 
 static struct drm_stub_list {
@@ -58,7 +61,7 @@ static int DRM(stub_open)(struct inode *inode, struct file *filp)
 		filp->f_op = fops_get(old_fops);
 	}
 	fops_put(old_fops);
-		
+
 	return err;
 }
 
@@ -73,7 +76,7 @@ static int DRM(stub_getminor)(const char *name, struct file_operations *fops,
 			      drm_device_t *dev)
 {
 	int i;
-	
+
 	if (!DRM(stub_list)) {
 		DRM(stub_list) = DRM(alloc)(sizeof(*DRM(stub_list))
 					    * DRM_STUB_MAXCARDS, DRM_MEM_STUB);
diff --git a/linux-core/i810_dma.c b/linux-core/i810_dma.c
index 8585fef15..e27406a62 100644
--- a/linux-core/i810_dma.c
+++ b/linux-core/i810_dma.c
@@ -48,17 +48,6 @@
 #define I810_BUF_UNMAPPED 0
 #define I810_BUF_MAPPED   1
 
-#define I810_REG(reg)		2
-#define I810_BASE(reg)		((unsigned long) \
-				dev->maplist[I810_REG(reg)]->handle)
-#define I810_ADDR(reg)		(I810_BASE(reg) + reg)
-#define I810_DEREF(reg)		*(__volatile__ int *)I810_ADDR(reg)
-#define I810_READ(reg)		I810_DEREF(reg)
-#define I810_WRITE(reg,val) 	do { I810_DEREF(reg) = val; } while (0)
-#define I810_DEREF16(reg)	*(__volatile__ u16 *)I810_ADDR(reg)
-#define I810_READ16(reg)	I810_DEREF16(reg)
-#define I810_WRITE16(reg,val)	do { I810_DEREF16(reg) = val; } while (0)
-
 #define RING_LOCALS	unsigned int outring, ringmask; volatile char *virt;
 
 #define BEGIN_LP_RING(n) do {				\
@@ -873,7 +862,7 @@ static void i810_dma_dispatch_vertex(drm_device_t *dev,
 
 
 /* Interrupts are only for flushing */
-static void i810_dma_service(int irq, void *device, struct pt_regs *regs)
+void i810_dma_service(int irq, void *device, struct pt_regs *regs)
 {
 	drm_device_t	 *dev = (drm_device_t *)device;
    	u16 temp;
@@ -890,7 +879,7 @@ static void i810_dma_service(int irq, void *device, struct pt_regs *regs)
    	mark_bh(IMMEDIATE_BH);
 }
 
-static void i810_dma_task_queue(void *device)
+void i810_dma_immediate_bh(void *device)
 {
 	drm_device_t *dev = (drm_device_t *) device;
       	drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
@@ -899,129 +888,6 @@ static void i810_dma_task_queue(void *device)
    	wake_up_interruptible(&dev_priv->flush_queue);
 }
 
-int i810_irq_install(drm_device_t *dev, int irq)
-{
-	int retcode;
-	u16 temp;
-
-	if (!irq)     return -EINVAL;
-
-	down(&dev->struct_sem);
-	if (dev->irq) {
-		up(&dev->struct_sem);
-		return -EBUSY;
-	}
-	dev->irq = irq;
-	up(&dev->struct_sem);
-
-   	DRM_DEBUG(  "Interrupt Install : %d\n", irq);
-	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;
-
-	INIT_LIST_HEAD(&dev->tq.list);
-	dev->tq.sync	      = 0;
-	dev->tq.routine	      = i810_dma_task_queue;
-	dev->tq.data	      = dev;
-
-				/* Before installing handler */
-   	temp = I810_READ16(I810REG_HWSTAM);
-   	temp = temp & 0x6000;
-   	I810_WRITE16(I810REG_HWSTAM, temp);
-
-      	temp = I810_READ16(I810REG_INT_MASK_R);
-   	temp = temp & 0x6000;
-   	I810_WRITE16(I810REG_INT_MASK_R, temp); /* Unmask interrupts */
-   	temp = I810_READ16(I810REG_INT_ENABLE_R);
-   	temp = temp & 0x6000;
-      	I810_WRITE16(I810REG_INT_ENABLE_R, temp); /* Disable all interrupts */
-
-				/* Install handler */
-	if ((retcode = request_irq(dev->irq,
-				   i810_dma_service,
-				   SA_SHIRQ,
-				   dev->devname,
-				   dev))) {
-		down(&dev->struct_sem);
-		dev->irq = 0;
-		up(&dev->struct_sem);
-		return retcode;
-	}
-   	temp = I810_READ16(I810REG_INT_ENABLE_R);
-   	temp = temp & 0x6000;
-   	temp = temp | 0x0003;
-   	I810_WRITE16(I810REG_INT_ENABLE_R,
-		     temp); /* Enable bp & user interrupts */
-	return 0;
-}
-
-int i810_irq_uninstall(drm_device_t *dev)
-{
-	int irq;
-   	u16 temp;
-
-
-/*  	return 0; */
-
-	down(&dev->struct_sem);
-	irq	 = dev->irq;
-	dev->irq = 0;
-	up(&dev->struct_sem);
-
-	if (!irq) return -EINVAL;
-
-   	DRM_DEBUG(  "Interrupt UnInstall: %d\n", irq);
-	DRM_DEBUG("%d\n", irq);
-
-   	temp = I810_READ16(I810REG_INT_IDENTITY_R);
-   	temp = temp & ~(0x6000);
-   	if(temp != 0) I810_WRITE16(I810REG_INT_IDENTITY_R,
-				   temp); /* Clear all interrupts */
-
-   	temp = I810_READ16(I810REG_INT_ENABLE_R);
-   	temp = temp & 0x6000;
-   	I810_WRITE16(I810REG_INT_ENABLE_R,
-		     temp);                     /* Disable all interrupts */
-
-   	free_irq(irq, dev);
-
-	return 0;
-}
-
-int i810_control(struct inode *inode, struct file *filp, unsigned int cmd,
-		  unsigned long arg)
-{
-	drm_file_t	*priv	= filp->private_data;
-	drm_device_t	*dev	= priv->dev;
-	drm_control_t	ctl;
-	int		retcode;
-
-   	DRM_DEBUG(  "i810_control\n");
-
-	if (copy_from_user(&ctl, (drm_control_t *)arg, sizeof(ctl)))
-		return -EFAULT;
-
-	switch (ctl.func) {
-	case DRM_INST_HANDLER:
-		if ((retcode = i810_irq_install(dev, ctl.irq)))
-			return retcode;
-		break;
-	case DRM_UNINST_HANDLER:
-		if ((retcode = i810_irq_uninstall(dev)))
-			return retcode;
-		break;
-	default:
-		return -EINVAL;
-	}
-	return 0;
-}
-
 static inline void i810_dma_emit_flush(drm_device_t *dev)
 {
    	drm_i810_private_t *dev_priv = dev->dev_private;
diff --git a/linux-core/i810_drv.c b/linux-core/i810_drv.c
index 635bdc6d4..12a59dbf3 100644
--- a/linux-core/i810_drv.c
+++ b/linux-core/i810_drv.c
@@ -56,47 +56,26 @@
    	[DRM_IOCTL_NR(DRM_IOCTL_I810_COPY)]   = { i810_copybuf,     1, 0 }, \
    	[DRM_IOCTL_NR(DRM_IOCTL_I810_DOCOPY)] = { i810_docopy,      1, 0 },
 
+
 #define __HAVE_COUNTERS         4
 #define __HAVE_COUNTER6         _DRM_STAT_IRQ
 #define __HAVE_COUNTER7         _DRM_STAT_PRIMARY
 #define __HAVE_COUNTER8         _DRM_STAT_SECONDARY
 #define __HAVE_COUNTER9         _DRM_STAT_DMA
 
-#define __HAVE_DMA_QUIESCENT	1
-#define DRIVER_DMA_QUIESCENT() do {					\
-	i810_dma_quiescent( dev );					\
-} while (0)
-
-#define __HAVE_RELEASE		1
-#define DRIVER_RELEASE() do {						\
-	i810_reclaim_buffers( dev, priv->pid );				\
-} while (0)
-
-#include "drm_drv.h"
-
-
-#define DRIVER_BUF_PRIV_T	drm_i810_buf_priv_t
-
-#define DRIVER_AGP_BUFFERS_MAP( dev )					\
-({									\
-	drm_i810_private_t *dev_priv = (dev)->dev_private;		\
-	drm_map_t *map = (dev)->maplist[dev_priv->buffer_map_idx];	\
-	map;								\
-})
-
-#include "drm_bufs.h"
-
 
 #include "drm_agpsupport.h"
 #include "drm_auth.h"
+#include "drm_bufs.h"
 #include "drm_context.h"
 #include "drm_dma.h"
 #include "drm_drawable.h"
+#include "drm_drv.h"
 #include "drm_fops.h"
 #include "drm_init.h"
 #include "drm_ioctl.h"
 #include "drm_lock.h"
-#include "drm_lists.h"		/* kw: added for i810_waitlist_destroy */
+#include "drm_lists.h"
 #include "drm_memory.h"
 #include "drm_proc.h"
 #include "drm_vm.h"
diff --git a/linux-core/i810_drv.h b/linux-core/i810_drv.h
index e78240932..43d44e028 100644
--- a/linux-core/i810_drv.h
+++ b/linux-core/i810_drv.h
@@ -80,12 +80,6 @@ typedef struct drm_i810_private {
 extern int  i810_dma_schedule(drm_device_t *dev, int locked);
 extern int  i810_getbuf(struct inode *inode, struct file *filp,
 			unsigned int cmd, unsigned long arg);
-extern int  i810_irq_install(drm_device_t *dev, int irq);
-extern int  i810_irq_uninstall(drm_device_t *dev);
-extern int  i810_control(struct inode *inode, struct file *filp,
-			  unsigned int cmd, unsigned long arg);
-extern int  i810_lock(struct inode *inode, struct file *filp,
-		       unsigned int cmd, unsigned long arg);
 extern int  i810_dma_init(struct inode *inode, struct file *filp,
 			  unsigned int cmd, unsigned long arg);
 extern int  i810_flush_ioctl(struct inode *inode, struct file *filp,
@@ -113,6 +107,19 @@ int i810_swap_bufs(struct inode *inode, struct file *filp,
 int i810_clear_bufs(struct inode *inode, struct file *filp,
 		    unsigned int cmd, unsigned long arg);
 
+
+#define I810_REG(reg)		2
+#define I810_BASE(reg)		((unsigned long) \
+				dev->maplist[I810_REG(reg)]->handle)
+#define I810_ADDR(reg)		(I810_BASE(reg) + reg)
+#define I810_DEREF(reg)		*(__volatile__ int *)I810_ADDR(reg)
+#define I810_READ(reg)		I810_DEREF(reg)
+#define I810_WRITE(reg,val) 	do { I810_DEREF(reg) = val; } while (0)
+#define I810_DEREF16(reg)	*(__volatile__ u16 *)I810_ADDR(reg)
+#define I810_READ16(reg)	I810_DEREF16(reg)
+#define I810_WRITE16(reg,val)	do { I810_DEREF16(reg) = val; } while (0)
+
+
 #define GFX_OP_USER_INTERRUPT 		((0<<29)|(2<<23))
 #define GFX_OP_BREAKPOINT_INTERRUPT	((0<<29)|(1<<23))
 #define CMD_REPORT_HEAD			(7<<23)
diff --git a/linux-core/mga_drv.c b/linux-core/mga_drv.c
index 7898c744d..88fa53a6d 100644
--- a/linux-core/mga_drv.c
+++ b/linux-core/mga_drv.c
@@ -38,7 +38,7 @@
 
 #define DRIVER_NAME		"mga"
 #define DRIVER_DESC		"Matrox G200/G400"
-#define DRIVER_DATE		"20010215"
+#define DRIVER_DATE		"20010216"
 
 #define DRIVER_MAJOR		3
 #define DRIVER_MINOR		0
@@ -56,38 +56,20 @@
 	[DRM_IOCTL_NR(DRM_IOCTL_MGA_ILOAD)]   = { mga_dma_iload,   1, 0 }, \
 	[DRM_IOCTL_NR(DRM_IOCTL_MGA_BLIT)]    = { mga_dma_blit,    1, 0 },
 
+
 #define __HAVE_COUNTERS         3
 #define __HAVE_COUNTER6         _DRM_STAT_IRQ
 #define __HAVE_COUNTER7         _DRM_STAT_PRIMARY
 #define __HAVE_COUNTER8         _DRM_STAT_SECONDARY
 
-#define __HAVE_DMA_QUIESCENT	1
-#define DRIVER_DMA_QUIESCENT()						\
-do {									\
-	drm_mga_private_t *dev_priv = dev->dev_private;			\
-	return mga_do_wait_for_idle( dev_priv );			\
-} while (0)
-
-#define DRIVER_PRETAKEDOWN() do {					\
-	if ( dev->dev_private ) mga_do_cleanup_dma( dev );		\
-} while (0)
-
-#include "drm_drv.h"
-
-
-#define DRIVER_BUF_PRIV_T	drm_mga_buf_priv_t
-
-#define DRIVER_AGP_BUFFERS_MAP( dev )					\
-	((drm_mga_private_t *)((dev)->dev_private))->buffers
-
-#include "drm_bufs.h"
-
 
 #include "drm_agpsupport.h"
 #include "drm_auth.h"
+#include "drm_bufs.h"
 #include "drm_context.h"
 #include "drm_dma.h"
 #include "drm_drawable.h"
+#include "drm_drv.h"
 #include "drm_fops.h"
 #include "drm_init.h"
 #include "drm_ioctl.h"
diff --git a/linux-core/r128_drv.c b/linux-core/r128_drv.c
index 3bd27ae7d..e42868ed6 100644
--- a/linux-core/r128_drv.c
+++ b/linux-core/r128_drv.c
@@ -38,7 +38,7 @@
 
 #define DRIVER_NAME		"r128"
 #define DRIVER_DESC		"ATI Rage 128"
-#define DRIVER_DATE		"20010215"
+#define DRIVER_DATE		"20010216"
 
 #define DRIVER_MAJOR		2
 #define DRIVER_MINOR		1
@@ -62,6 +62,7 @@
    [DRM_IOCTL_NR(DRM_IOCTL_R128_STIPPLE)]    = { r128_cce_stipple,  1, 0 }, \
    [DRM_IOCTL_NR(DRM_IOCTL_R128_INDIRECT)]   = { r128_cce_indirect, 1, 1 },
 
+
 #if 0
 /* GH: Count data sent to card via ring or vertex/indirect buffers.
  */
@@ -71,41 +72,14 @@
 #define __HAVE_COUNTER8         _DRM_STAT_SECONDARY
 #endif
 
-#define __HAVE_DMA_QUIESCENT	1
-#define DRIVER_DMA_QUIESCENT() do {					\
-	drm_r128_private_t *dev_priv = dev->dev_private;		\
-	return r128_do_cce_idle( dev_priv );				\
-} while (0)
-
-#define DRIVER_PRERELEASE() do {					\
-	if ( dev->dev_private ) {					\
-		drm_r128_private_t *dev_priv = dev->dev_private;	\
-		if ( dev_priv->page_flipping ) {			\
-			r128_do_cleanup_pageflip( dev );		\
-		}							\
-	}								\
-} while (0)
-
-#define DRIVER_PRETAKEDOWN() do {					\
-	if ( dev->dev_private ) r128_do_cleanup_cce( dev );		\
-} while (0)
-
-#include "drm_drv.h"
-
-
-#define DRIVER_BUF_PRIV_T	drm_r128_buf_priv_t
-
-#define DRIVER_AGP_BUFFERS_MAP( dev )					\
-	((drm_r128_private_t *)((dev)->dev_private))->buffers
-
-#include "drm_bufs.h"
-
 
 #include "drm_agpsupport.h"
 #include "drm_auth.h"
+#include "drm_bufs.h"
 #include "drm_context.h"
 #include "drm_dma.h"
 #include "drm_drawable.h"
+#include "drm_drv.h"
 #include "drm_fops.h"
 #include "drm_init.h"
 #include "drm_ioctl.h"
diff --git a/linux-core/radeon_drv.c b/linux-core/radeon_drv.c
index 43f6e2e7b..cf59f866a 100644
--- a/linux-core/radeon_drv.c
+++ b/linux-core/radeon_drv.c
@@ -36,7 +36,7 @@
 
 #define DRIVER_NAME		"radeon"
 #define DRIVER_DESC		"ATI Radeon"
-#define DRIVER_DATE		"20010215"
+#define DRIVER_DATE		"20010216"
 
 #define DRIVER_MAJOR		1
 #define DRIVER_MINOR		0
@@ -59,6 +59,7 @@
  [DRM_IOCTL_NR(DRM_IOCTL_RADEON_STIPPLE)]    = { radeon_cp_stipple,  1, 0 }, \
  [DRM_IOCTL_NR(DRM_IOCTL_RADEON_INDIRECT)]   = { radeon_cp_indirect, 1, 1 },
 
+
 #if 0
 /* GH: Count data sent to card via ring or vertex/indirect buffers.
  */
@@ -68,41 +69,14 @@
 #define __HAVE_COUNTER8         _DRM_STAT_SECONDARY
 #endif
 
-#define __HAVE_DMA_QUIESCENT	1
-#define DRIVER_DMA_QUIESCENT() do {					\
-	drm_radeon_private_t *dev_priv = dev->dev_private;		\
-	return radeon_do_cp_idle( dev_priv );				\
-} while (0)
-
-#define DRIVER_PRERELEASE() do {					\
-	if ( dev->dev_private ) {					\
-		drm_radeon_private_t *dev_priv = dev->dev_private;	\
-		if ( dev_priv->page_flipping ) {			\
-			radeon_do_cleanup_pageflip( dev );		\
-		}							\
-	}								\
-} while (0)
-
-#define DRIVER_PRETAKEDOWN() do {					\
-	if ( dev->dev_private ) radeon_do_cleanup_cp( dev );		\
-} while (0)
-
-#include "drm_drv.h"
-
-
-#define DRIVER_BUF_PRIV_T	drm_radeon_buf_priv_t
-
-#define DRIVER_AGP_BUFFERS_MAP( dev )					\
-	((drm_radeon_private_t *)((dev)->dev_private))->buffers
-
-#include "drm_bufs.h"
-
 
 #include "drm_agpsupport.h"
 #include "drm_auth.h"
+#include "drm_bufs.h"
 #include "drm_context.h"
 #include "drm_dma.h"
 #include "drm_drawable.h"
+#include "drm_drv.h"
 #include "drm_fops.h"
 #include "drm_init.h"
 #include "drm_ioctl.h"
diff --git a/linux-core/tdfx_drv.c b/linux-core/tdfx_drv.c
index e8d7955ca..71d065f19 100644
--- a/linux-core/tdfx_drv.c
+++ b/linux-core/tdfx_drv.c
@@ -38,14 +38,12 @@
 
 #define DRIVER_NAME		"tdfx"
 #define DRIVER_DESC		"3dfx Banshee/Voodoo3+"
-#define DRIVER_DATE		"20010215"
+#define DRIVER_DATE		"20010216"
 
 #define DRIVER_MAJOR		1
 #define DRIVER_MINOR		0
 #define DRIVER_PATCHLEVEL	0
 
-#include "drm_drv.h"
-
 
 #include "drm_agpsupport.h"
 #include "drm_auth.h"
@@ -53,6 +51,7 @@
 #include "drm_context.h"
 #include "drm_dma.h"
 #include "drm_drawable.h"
+#include "drm_drv.h"
 #include "drm_fops.h"
 #include "drm_init.h"
 #include "drm_ioctl.h"