Merged mga-0-0-3-branch

- New security model for i810
- Enable i810 dri by default
- New indexed vertex path for mga
- Mga kernel driver rework
- Removed dead files in i810 driver

11 files changed, 1146 insertions, 673 deletions

diff --git a/linux/drm.h b/linux/drm.h
index 25e4cce4..74ef83f4 100644
--- a/linux/drm.h
+++ b/linux/drm.h
@@ -341,13 +341,16 @@ typedef struct drm_agp_info {
 #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_DMA     DRM_IOW( 0x42, drm_i810_general_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_IOW( 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)
diff --git a/linux/i810_bufs.c b/linux/i810_bufs.c
index c025e400..9737ae92 100644
--- a/linux/i810_bufs.c
+++ b/linux/i810_bufs.c
@@ -120,6 +120,7 @@ int i810_addbufs_agp(struct inode *inode, struct file *filp, unsigned int cmd,
 		buf->dev_private = drm_alloc(sizeof(drm_i810_buf_priv_t), 
 					     DRM_MEM_BUFS);
 		buf->dev_priv_size = sizeof(drm_i810_buf_priv_t);
+	   	memset(buf->dev_private, 0, sizeof(drm_i810_buf_priv_t));
 
 #if DRM_DMA_HISTOGRAM
 		buf->time_queued = 0;
@@ -332,113 +333,3 @@ int i810_freebufs(struct inode *inode, struct file *filp, unsigned int cmd,
 	return 0;
 }
 
-int i810_mapbufs(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_device_dma_t *dma	 = dev->dma;
-	int		 retcode = 0;
-	const int	 zero	 = 0;
-	unsigned long	 virtual;
-	unsigned long	 address;
-	drm_buf_map_t	 request;
-	int		 i;
-
-	if (!dma) return -EINVAL;
-	
-	DRM_DEBUG("\n");
-
-	spin_lock(&dev->count_lock);
-	if (atomic_read(&dev->buf_alloc)) {
-		spin_unlock(&dev->count_lock);
-		DRM_DEBUG("Busy\n");
-		return -EBUSY;
-	}
-	++dev->buf_use;		/* Can't allocate more after this call */
-	spin_unlock(&dev->count_lock);
-
-	copy_from_user_ret(&request,
-			   (drm_buf_map_t *)arg,
-			   sizeof(request),
-			   -EFAULT);
-   	DRM_DEBUG("dma->flags : %lx\n", dma->flags);
-   	if (request.count >= dma->buf_count) {
-		if(dma->flags & _DRM_DMA_USE_AGP) {
-			drm_i810_private_t *dev_priv = 
-				(drm_i810_private_t *)dev->dev_private;
-			drm_map_t *map = NULL;
-	      
-			map = dev->maplist[dev_priv->buffer_map_idx];
-			if (!map) {
-				DRM_DEBUG("map is null\n");
-				retcode = -EINVAL;
-				goto done;
-			}
-			DRM_DEBUG("map->offset : %lx\n", map->offset);
-			DRM_DEBUG("map->size : %lx\n", map->size);
-			DRM_DEBUG("map->type : %d\n", map->type);
-			DRM_DEBUG("map->flags : %x\n", map->flags);
-			DRM_DEBUG("map->handle : %lx\n", map->handle);
-			DRM_DEBUG("map->mtrr : %d\n", map->mtrr);
-			down(&current->mm->mmap_sem);
-			virtual = do_mmap(filp, 0, map->size, 
-					  PROT_READ|PROT_WRITE,
-					  MAP_SHARED, 
-					  (unsigned long)map->offset);
-
-			up(&current->mm->mmap_sem);
-		} else {
-			down(&current->mm->mmap_sem);
-			virtual = do_mmap(filp, 0, dma->byte_count,
-					  PROT_READ|PROT_WRITE, MAP_SHARED, 0);
-			up(&current->mm->mmap_sem);
-		}
-		if (virtual > -1024UL) {
-			/* Real error */
-			DRM_DEBUG("mmap error\n");
-			retcode = (signed long)virtual;
-			goto done;
-		}
-		request.virtual = (void *)virtual;
-	   
-		for (i = 0; i < dma->buf_count; i++) {
-			if (copy_to_user(&request.list[i].idx,
-					 &dma->buflist[i]->idx,
-					 sizeof(request.list[0].idx))) {
-				retcode = -EFAULT;
-				goto done;
-			}
-			if (copy_to_user(&request.list[i].total,
-					 &dma->buflist[i]->total,
-					 sizeof(request.list[0].total))) {
-				retcode = -EFAULT;
-				goto done;
-			}
-			if (copy_to_user(&request.list[i].used,
-					 &zero,
-					 sizeof(zero))) {
-				retcode = -EFAULT;
-				goto done;
-			}
-			address = virtual + dma->buflist[i]->offset;
-			if (copy_to_user(&request.list[i].address,
-					 &address,
-					 sizeof(address))) {
-				retcode = -EFAULT;
-				goto done;
-			}
-		}
-	}
- done:
-	request.count = dma->buf_count;
-	DRM_DEBUG("%d buffers, retcode = %d\n", request.count, retcode);
-   
-	copy_to_user_ret((drm_buf_map_t *)arg,
-			 &request,
-			 sizeof(request),
-			 -EFAULT);
-
-	DRM_DEBUG("retcode : %d\n", retcode);
-	return retcode;
-}
diff --git a/linux/i810_dma.c b/linux/i810_dma.c
index 6ac4d2ee..f041f209 100644
--- a/linux/i810_dma.c
+++ b/linux/i810_dma.c
@@ -37,8 +37,12 @@
 
 #include <linux/interrupt.h>	/* For task queue support */
 
-#define I810_BUF_FREE		1
-#define I810_BUF_USED		0
+#define I810_BUF_FREE		2
+#define I810_BUF_CLIENT		1
+#define I810_BUF_HARDWARE      	0
+
+#define I810_BUF_UNMAPPED 0
+#define I810_BUF_MAPPED   1
 
 #define I810_REG(reg)		2
 #define I810_BASE(reg)		((unsigned long) \
@@ -91,7 +95,7 @@ static inline void i810_print_status_page(drm_device_t *dev)
       	DRM_DEBUG(  "hw_status: Reserved : %x\n", temp[3]);
    	DRM_DEBUG(  "hw_status: Driver Counter : %d\n", temp[5]);
    	for(i = 6; i < dma->buf_count + 6; i++) {
-	   	DRM_DEBUG(  "buffer status idx : %d used: %d\n", i - 6, temp[i]);
+	   	DRM_DEBUG( "buffer status idx : %d used: %d\n", i - 6, temp[i]);
 	}
 }
 
@@ -108,7 +112,7 @@ static drm_buf_t *i810_freelist_get(drm_device_t *dev)
 	   	drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 		/* In use is already a pointer */
 	   	used = cmpxchg(buf_priv->in_use, I810_BUF_FREE, 
-			       I810_BUF_USED);
+			       I810_BUF_CLIENT);
 	   	if(used == I810_BUF_FREE) {
 			return buf;
 		}
@@ -126,8 +130,8 @@ static int i810_freelist_put(drm_device_t *dev, drm_buf_t *buf)
    	int used;
    
    	/* In use is already a pointer */
-   	used = cmpxchg(buf_priv->in_use, I810_BUF_USED, I810_BUF_FREE);
-   	if(used != I810_BUF_USED) {
+   	used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_FREE);
+   	if(used != I810_BUF_CLIENT) {
 	   	DRM_ERROR("Freeing buffer thats not in use : %d\n", buf->idx);
 	   	return -EINVAL;
 	}
@@ -135,26 +139,114 @@ static int i810_freelist_put(drm_device_t *dev, drm_buf_t *buf)
    	return 0;
 }
 
-static int i810_dma_get_buffers(drm_device_t *dev, drm_dma_t *d)
+static struct file_operations i810_buffer_fops = {
+	open:	 i810_open,
+	flush:	 drm_flush,
+	release: i810_release,
+	ioctl:	 i810_ioctl,
+	mmap:	 i810_mmap_buffers,
+	read:	 drm_read,
+	fasync:	 drm_fasync,
+      	poll:	 drm_poll,
+};
+
+int i810_mmap_buffers(struct file *filp, struct vm_area_struct *vma)
+{
+	drm_file_t	  *priv	  = filp->private_data;
+	drm_device_t	  *dev	  = priv->dev;
+	drm_i810_private_t *dev_priv = dev->dev_private;
+	drm_buf_t *buf = dev_priv->mmap_buffer;
+	drm_i810_buf_priv_t *buf_priv = buf->dev_private;
+   
+	vma->vm_flags |= (VM_IO | VM_DONTCOPY);
+	vma->vm_file = filp;
+   
+   	buf_priv->currently_mapped = I810_BUF_MAPPED;
+
+	if (remap_page_range(vma->vm_start,
+			     VM_OFFSET(vma),
+			     vma->vm_end - vma->vm_start,
+			     vma->vm_page_prot)) return -EAGAIN;
+	return 0;
+}
+
+static int i810_map_buffer(drm_buf_t *buf, struct file *filp)
 {
-	int		  i;
+	drm_file_t	  *priv	  = filp->private_data;
+	drm_device_t	  *dev	  = priv->dev;
+	drm_i810_buf_priv_t *buf_priv = buf->dev_private;
+      	drm_i810_private_t *dev_priv = dev->dev_private;
+   	struct file_operations *old_fops;
+	int retcode = 0;
+
+	if(buf_priv->currently_mapped == I810_BUF_MAPPED) return -EINVAL;
+	down(&current->mm->mmap_sem);
+   	old_fops = filp->f_op;
+	filp->f_op = &i810_buffer_fops;
+	dev_priv->mmap_buffer = buf;
+	buf_priv->virtual = (void *)do_mmap(filp, 0, buf->total, 
+					    PROT_READ|PROT_WRITE,
+					    MAP_SHARED, 
+					    buf->bus_address);
+	dev_priv->mmap_buffer = NULL;
+   	filp->f_op = old_fops;
+	if ((unsigned long)buf_priv->virtual > -1024UL) {
+		/* Real error */
+		DRM_DEBUG("mmap error\n");
+		retcode = (signed int)buf_priv->virtual;
+		buf_priv->virtual = 0;
+	}
+   	up(&current->mm->mmap_sem);
+	return retcode;
+}
+
+static int i810_unmap_buffer(drm_buf_t *buf)
+{
+	drm_i810_buf_priv_t *buf_priv = buf->dev_private;
+	int retcode = 0;
+
+	if(buf_priv->currently_mapped != I810_BUF_MAPPED) return -EINVAL;
+	down(&current->mm->mmap_sem);
+        retcode = do_munmap((unsigned long)buf_priv->virtual, 
+			    (size_t) buf->total);
+   	buf_priv->currently_mapped = I810_BUF_UNMAPPED;
+   	buf_priv->virtual = 0;
+   	up(&current->mm->mmap_sem);
+
+	return retcode;
+}
+
+static int i810_dma_get_buffer(drm_device_t *dev, drm_i810_dma_t *d, 
+			       struct file *filp)
+{
+	drm_file_t	  *priv	  = filp->private_data;
 	drm_buf_t	  *buf;
+	drm_i810_buf_priv_t *buf_priv;
+	int retcode = 0;
 
-	for (i = d->granted_count; i < d->request_count; i++) {
-		buf = i810_freelist_get(dev);
-		if (!buf) break;
-		buf->pid     = current->pid;
-		copy_to_user_ret(&d->request_indices[i],
-				 &buf->idx,
-				 sizeof(buf->idx),
-				 -EFAULT);
-		copy_to_user_ret(&d->request_sizes[i],
-				 &buf->total,
-				 sizeof(buf->total),
-				 -EFAULT);
-		++d->granted_count;
+	buf = i810_freelist_get(dev);
+	if (!buf) {
+		retcode = -ENOMEM;
+	   	DRM_DEBUG("%s retcode %d\n", __FUNCTION__, retcode);
+		goto out_get_buf;
 	}
-	return 0;
+   
+	retcode = i810_map_buffer(buf, filp);
+	if(retcode) {
+		i810_freelist_put(dev, buf);
+	   	DRM_DEBUG("mapbuf failed in %s retcode %d\n", 
+			  __FUNCTION__, retcode);
+	   	goto out_get_buf;
+	}
+	buf->pid     = priv->pid;
+	buf_priv = buf->dev_private;	
+	d->granted = 1;
+   	d->request_idx = buf->idx;
+   	d->request_size = buf->total;
+   	d->virtual = buf_priv->virtual;
+
+out_get_buf:
+	return retcode;
 }
 
 static unsigned long i810_alloc_page(drm_device_t *dev)
@@ -185,7 +277,10 @@ static void i810_free_page(drm_device_t *dev, unsigned long page)
 
 static int i810_dma_cleanup(drm_device_t *dev)
 {
+	drm_device_dma_t *dma = dev->dma;
+
 	if(dev->dev_private) {
+		int i;
 	   	drm_i810_private_t *dev_priv = 
 	     		(drm_i810_private_t *) dev->dev_private;
 	   
@@ -201,6 +296,12 @@ static int i810_dma_cleanup(drm_device_t *dev)
 	   	drm_free(dev->dev_private, sizeof(drm_i810_private_t), 
 			 DRM_MEM_DRIVER);
 	   	dev->dev_private = NULL;
+
+		for (i = 0; i < dma->buf_count; i++) {
+			drm_buf_t *buf = dma->buflist[ i ];
+			drm_i810_buf_priv_t *buf_priv = buf->dev_private;
+			drm_ioremapfree(buf_priv->kernel_virtual, buf->total);
+		}
 	}
    	return 0;
 }
@@ -211,6 +312,7 @@ static int i810_wait_ring(drm_device_t *dev, int n)
    	drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
    	int iters = 0;
    	unsigned long end;
+	unsigned int last_head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
 
 	end = jiffies + (HZ*3);
    	while (ring->space < n) {
@@ -218,9 +320,11 @@ static int i810_wait_ring(drm_device_t *dev, int n)
 	
 	   	ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
 	   	ring->space = ring->head - (ring->tail+8);
+		if (ring->space < 0) ring->space += ring->Size;
 	   
-	   	if (ring->space < 0) ring->space += ring->Size;
-	   
+		if (ring->head != last_head)
+		   end = jiffies + (HZ*3);
+	  
 	   	iters++;
 		if((signed)(end - jiffies) <= 0) {
 		   	DRM_ERROR("space: %d wanted %d\n", ring->space, n);
@@ -250,9 +354,9 @@ static int i810_freelist_init(drm_device_t *dev)
 {
       	drm_device_dma_t *dma = dev->dma;
    	drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
-   	u8 *hw_status = (u8 *)dev_priv->hw_status_page;
-   	int i;
    	int my_idx = 24;
+   	u32 *hw_status = (u32 *)(dev_priv->hw_status_page + my_idx);
+   	int i;
    
    	if(dma->buf_count > 1019) {
 	   	/* Not enough space in the status page for the freelist */
@@ -263,11 +367,14 @@ static int i810_freelist_init(drm_device_t *dev)
 	   	drm_buf_t *buf = dma->buflist[ i ];
 	   	drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 	   
-	   	buf_priv->in_use = hw_status + my_idx;
-	   	DRM_DEBUG("buf_priv->in_use : %p\n", buf_priv->in_use);
-	   	*buf_priv->in_use = I810_BUF_FREE;
+	   	buf_priv->in_use = hw_status++;
 	   	buf_priv->my_use_idx = my_idx;
 	   	my_idx += 4;
+
+	   	*buf_priv->in_use = I810_BUF_FREE;
+
+		buf_priv->kernel_virtual = drm_ioremap(buf->bus_address, 
+						       buf->total);
 	}
 	return 0;
 }
@@ -301,9 +408,11 @@ static int i810_dma_initialize(drm_device_t *dev,
    	dev_priv->ring.Start = init->ring_start;
    	dev_priv->ring.End = init->ring_end;
    	dev_priv->ring.Size = init->ring_size;
+
    	dev_priv->ring.virtual_start = drm_ioremap(dev->agp->base + 
 						   init->ring_start, 
 						   init->ring_size);
+
    	dev_priv->ring.tail_mask = dev_priv->ring.Size - 1;
    
    	if (dev_priv->ring.virtual_start == NULL) {
@@ -312,6 +421,17 @@ static int i810_dma_initialize(drm_device_t *dev,
 			  " ring buffer\n");
 	   	return -ENOMEM;
 	}
+
+	dev_priv->w = init->w;
+	dev_priv->h = init->h;
+	dev_priv->pitch = init->pitch;
+	dev_priv->back_offset = init->back_offset;
+	dev_priv->depth_offset = init->depth_offset;
+
+	dev_priv->front_di1 = init->front_offset | init->pitch_bits;
+	dev_priv->back_di1 = init->back_offset | init->pitch_bits;
+	dev_priv->zi1 = init->depth_offset | init->pitch_bits;
+	
    
    	/* Program Hardware Status Page */
    	dev_priv->hw_status_page = i810_alloc_page(dev);
@@ -366,37 +486,270 @@ int i810_dma_init(struct inode *inode, struct file *filp,
    	return retcode;
 }
 
-static void i810_dma_dispatch_general(drm_device_t *dev, drm_buf_t *buf,
-				      int used )
+
+
+/* Most efficient way to verify state for the i810 is as it is
+ * emitted.  Non-conformant state is silently dropped.
+ *
+ * Use 'volatile' & local var tmp to force the emitted values to be
+ * identical to the verified ones.
+ */
+static void i810EmitContextVerified( drm_device_t *dev, 
+				     volatile unsigned int *code ) 
+{	
+   	drm_i810_private_t *dev_priv = dev->dev_private;
+	int i, j = 0;
+	unsigned int tmp;
+	RING_LOCALS;
+
+	BEGIN_LP_RING( I810_CTX_SETUP_SIZE );
+
+	OUT_RING( GFX_OP_COLOR_FACTOR );
+	OUT_RING( code[I810_CTXREG_CF1] );
+
+	OUT_RING( GFX_OP_STIPPLE );
+	OUT_RING( code[I810_CTXREG_ST1] );
+
+	for ( i = 4 ; i < I810_CTX_SETUP_SIZE ; i++ ) {
+		tmp = code[i];
+
+		if ((tmp & (7<<29)) == (3<<29) &&
+		    (tmp & (0x1f<<24)) < (0x1d<<24)) 
+		{
+			OUT_RING( tmp ); 
+			j++;
+		} 
+	}
+
+	if (j & 1) 
+		OUT_RING( 0 ); 
+
+	ADVANCE_LP_RING();
+}
+
+static void i810EmitTexVerified( drm_device_t *dev, 
+				 volatile unsigned int *code ) 
+{	
+   	drm_i810_private_t *dev_priv = dev->dev_private;
+	int i, j = 0;
+	unsigned int tmp;
+	RING_LOCALS;
+
+	BEGIN_LP_RING( I810_TEX_SETUP_SIZE );
+
+	OUT_RING( GFX_OP_MAP_INFO );
+	OUT_RING( code[I810_TEXREG_MI1] );
+	OUT_RING( code[I810_TEXREG_MI2] );
+	OUT_RING( code[I810_TEXREG_MI3] );
+
+	for ( i = 4 ; i < I810_TEX_SETUP_SIZE ; i++ ) {
+		tmp = code[i];
+
+		if ((tmp & (7<<29)) == (3<<29) &&
+		    (tmp & (0x1f<<24)) < (0x1d<<24)) 
+		{
+			OUT_RING( tmp ); 
+			j++;
+		}
+	} 
+		
+	if (j & 1) 
+		OUT_RING( 0 ); 
+
+	ADVANCE_LP_RING();
+}
+
+
+/* Need to do some additional checking when setting the dest buffer.
+ */
+static void i810EmitDestVerified( drm_device_t *dev, 
+				  volatile unsigned int *code ) 
+{	
+   	drm_i810_private_t *dev_priv = dev->dev_private;
+	unsigned int tmp;
+	RING_LOCALS;
+
+	BEGIN_LP_RING( I810_DEST_SETUP_SIZE + 2 );
+
+	tmp = code[I810_DESTREG_DI1];
+	if (tmp == dev_priv->front_di1 || tmp == dev_priv->back_di1) {
+		OUT_RING( CMD_OP_DESTBUFFER_INFO );
+		OUT_RING( tmp );
+	} else
+	   DRM_DEBUG("bad di1 %x (allow %x or %x)\n",
+		     tmp, dev_priv->front_di1, dev_priv->back_di1);
+
+	/* invarient:
+	 */
+	OUT_RING( CMD_OP_Z_BUFFER_INFO );
+	OUT_RING( dev_priv->zi1 );
+
+	OUT_RING( GFX_OP_DESTBUFFER_VARS );
+	OUT_RING( code[I810_DESTREG_DV1] );
+
+	OUT_RING( GFX_OP_DRAWRECT_INFO );
+	OUT_RING( code[I810_DESTREG_DR1] );
+	OUT_RING( code[I810_DESTREG_DR2] );
+	OUT_RING( code[I810_DESTREG_DR3] );
+	OUT_RING( code[I810_DESTREG_DR4] );
+	OUT_RING( 0 );
+
+	ADVANCE_LP_RING();
+}
+
+
+
+static void i810EmitState( drm_device_t *dev )
 {
-      	drm_i810_private_t *dev_priv = dev->dev_private;
-   	drm_i810_buf_priv_t *buf_priv = buf->dev_private;
-	unsigned long address = (unsigned long)buf->bus_address;
-	unsigned long start = address - dev->agp->base;
-   	RING_LOCALS;
+   	drm_i810_private_t *dev_priv = dev->dev_private;
+      	drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
+	unsigned int dirty = sarea_priv->dirty;
 
-   	dev_priv->counter++;
-   	DRM_DEBUG(  "dispatch counter : %ld\n", dev_priv->counter);
-   	DRM_DEBUG(  "i810_dma_dispatch\n");
-   	DRM_DEBUG(  "start : 0x%lx\n", start);
-	DRM_DEBUG(  "used : 0x%x\n", used);
-   	DRM_DEBUG(  "start + used - 4 : 0x%lx\n", start + used - 4);
-   	i810_kernel_lost_context(dev);
+	if (dirty & I810_UPLOAD_BUFFERS) {
+		i810EmitDestVerified( dev, sarea_priv->BufferState );
+		sarea_priv->dirty &= ~I810_UPLOAD_BUFFERS;
+	}
 
-   	BEGIN_LP_RING(10);
-   	OUT_RING( CMD_OP_BATCH_BUFFER );
-   	OUT_RING( start | BB1_PROTECTED );
-   	OUT_RING( start + used - 4 );
-      	OUT_RING( CMD_STORE_DWORD_IDX );
-   	OUT_RING( 20 );
-   	OUT_RING( dev_priv->counter );
-   	OUT_RING( CMD_STORE_DWORD_IDX );
-   	OUT_RING( buf_priv->my_use_idx );
-   	OUT_RING( I810_BUF_FREE );   
-      	OUT_RING( CMD_REPORT_HEAD );
-      	ADVANCE_LP_RING();
+	if (dirty & I810_UPLOAD_CTX) {
+		i810EmitContextVerified( dev, sarea_priv->ContextState );
+		sarea_priv->dirty &= ~I810_UPLOAD_CTX;
+	}
+
+	if (dirty & I810_UPLOAD_TEX0) {
+		i810EmitTexVerified( dev, sarea_priv->TexState[0] );
+		sarea_priv->dirty &= ~I810_UPLOAD_TEX0;
+	}
+
+	if (dirty & I810_UPLOAD_TEX1) {
+		i810EmitTexVerified( dev, sarea_priv->TexState[1] );
+		sarea_priv->dirty &= ~I810_UPLOAD_TEX1;
+	}
+}
+
+
+
+/* need to verify 
+ */
+static void i810_dma_dispatch_clear( drm_device_t *dev, int flags, 
+				     unsigned int clear_color,
+				     unsigned int clear_zval )
+{
+   	drm_i810_private_t *dev_priv = dev->dev_private;
+      	drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
+	int nbox = sarea_priv->nbox;
+	drm_clip_rect_t *pbox = sarea_priv->boxes;
+	int pitch = dev_priv->pitch;
+	int cpp = 2;
+	int i;
+	RING_LOCALS;
+
+  	i810_kernel_lost_context(dev);
+
+      	if (nbox > I810_NR_SAREA_CLIPRECTS)
+     		nbox = I810_NR_SAREA_CLIPRECTS;
+
+	for (i = 0 ; i < nbox ; i++, pbox++) {
+		unsigned int x = pbox->x1;
+		unsigned int y = pbox->y1;
+		unsigned int width = (pbox->x2 - x) * cpp;
+		unsigned int height = pbox->y2 - y;
+		unsigned int start = y * pitch + x * cpp;
+
+		if (pbox->x1 > pbox->x2 ||
+		    pbox->y1 > pbox->y2 ||
+		    pbox->x2 > dev_priv->w ||
+		    pbox->y2 > dev_priv->h)
+			continue;
+
+	   	if ( flags & I810_FRONT ) {	    
+		   	DRM_DEBUG("clear front\n");
+			BEGIN_LP_RING( 6 );	    
+			OUT_RING( BR00_BITBLT_CLIENT | 
+				  BR00_OP_COLOR_BLT | 0x3 );
+			OUT_RING( BR13_SOLID_PATTERN | (0xF0 << 16) | pitch );
+			OUT_RING( (height << 16) | width );
+			OUT_RING( start );
+			OUT_RING( clear_color );
+			OUT_RING( 0 );
+			ADVANCE_LP_RING();
+		}
+
+		if ( flags & I810_BACK ) {
+			DRM_DEBUG("clear back\n");
+			BEGIN_LP_RING( 6 );	    
+			OUT_RING( BR00_BITBLT_CLIENT | 
+				  BR00_OP_COLOR_BLT | 0x3 );
+			OUT_RING( BR13_SOLID_PATTERN | (0xF0 << 16) | pitch );
+			OUT_RING( (height << 16) | width );
+			OUT_RING( dev_priv->back_offset + start );
+			OUT_RING( clear_color );
+			OUT_RING( 0 );
+			ADVANCE_LP_RING();
+		}
+
+		if ( flags & I810_DEPTH ) {
+			DRM_DEBUG("clear depth\n");
+			BEGIN_LP_RING( 6 );	    
+			OUT_RING( BR00_BITBLT_CLIENT | 
+				  BR00_OP_COLOR_BLT | 0x3 );
+			OUT_RING( BR13_SOLID_PATTERN | (0xF0 << 16) | pitch );
+			OUT_RING( (height << 16) | width );
+			OUT_RING( dev_priv->depth_offset + start );
+			OUT_RING( clear_zval );
+			OUT_RING( 0 );
+			ADVANCE_LP_RING();
+		}
+	}
+}
+
+static void i810_dma_dispatch_swap( drm_device_t *dev )
+{
+   	drm_i810_private_t *dev_priv = dev->dev_private;
+      	drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
+	int nbox = sarea_priv->nbox;
+	drm_clip_rect_t *pbox = sarea_priv->boxes;
+	int pitch = dev_priv->pitch;
+	int cpp = 2;
+	int ofs = dev_priv->back_offset;
+	int i;
+	RING_LOCALS;
+
+	DRM_DEBUG("swapbuffers\n");
+
+  	i810_kernel_lost_context(dev);
+
+      	if (nbox > I810_NR_SAREA_CLIPRECTS)
+     		nbox = I810_NR_SAREA_CLIPRECTS;
+
+	for (i = 0 ; i < nbox; i++, pbox++) 
+	{
+		unsigned int w = pbox->x2 - pbox->x1;
+		unsigned int h = pbox->y2 - pbox->y1;
+		unsigned int dst = pbox->x1*cpp + pbox->y1*pitch;
+		unsigned int start = ofs + dst;
+
+		if (pbox->x1 > pbox->x2 ||
+		    pbox->y1 > pbox->y2 ||
+		    pbox->x2 > dev_priv->w ||
+		    pbox->y2 > dev_priv->h)
+			continue;
+ 
+	   	DRM_DEBUG("dispatch swap %d,%d-%d,%d!\n",
+			  pbox[i].x1, pbox[i].y1,
+			  pbox[i].x2, pbox[i].y2);
+
+		BEGIN_LP_RING( 6 );
+		OUT_RING( BR00_BITBLT_CLIENT | BR00_OP_SRC_COPY_BLT | 0x4 );
+		OUT_RING( pitch | (0xCC << 16));
+		OUT_RING( (h << 16) | (w * cpp));
+		OUT_RING( dst );
+		OUT_RING( pitch );	
+		OUT_RING( start );
+		ADVANCE_LP_RING();
+	}
 }
 
+
 static void i810_dma_dispatch_vertex(drm_device_t *dev, 
 				     drm_buf_t *buf,
 				     int discard,
@@ -409,14 +762,29 @@ static void i810_dma_dispatch_vertex(drm_device_t *dev,
    	int nbox = sarea_priv->nbox;
 	unsigned long address = (unsigned long)buf->bus_address;
 	unsigned long start = address - dev->agp->base;     
-	int i = 0;
+	int i = 0, u;
    	RING_LOCALS;
 
-   
+   	i810_kernel_lost_context(dev);
+
    	if (nbox > I810_NR_SAREA_CLIPRECTS) 
 		nbox = I810_NR_SAREA_CLIPRECTS;
-   
-   	DRM_DEBUG("dispatch vertex addr 0x%lx, used 0x%x nbox %d\n", 
+
+	if (discard) {
+		u = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, 
+			    I810_BUF_HARDWARE);
+		if(u != I810_BUF_CLIENT) {
+			DRM_DEBUG("xxxx 2\n");
+		}
+	}
+
+	if (used > 4*1024) 
+		used = 0;
+
+	if (sarea_priv->dirty)
+	   i810EmitState( dev );
+
+  	DRM_DEBUG("dispatch vertex addr 0x%lx, used 0x%x nbox %d\n", 
 		  address, used, nbox);
 
    	dev_priv->counter++;
@@ -425,8 +793,20 @@ static void i810_dma_dispatch_vertex(drm_device_t *dev,
    	DRM_DEBUG(  "start : %lx\n", start);
 	DRM_DEBUG(  "used : %d\n", used);
    	DRM_DEBUG(  "start + used - 4 : %ld\n", start + used - 4);
-   	i810_kernel_lost_context(dev);
 
+	if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
+		*(u32 *)buf_priv->virtual = (GFX_OP_PRIMITIVE |
+					     sarea_priv->vertex_prim |
+					     ((used/4)-2));
+		
+		if (used & 4) {
+			*(u32 *)((u32)buf_priv->virtual + used) = 0;
+			used += 4;
+		}
+
+		i810_unmap_buffer(buf);
+	}
+		   
 	if (used) {
 		do {
 			if (i < nbox) {
@@ -434,7 +814,7 @@ static void i810_dma_dispatch_vertex(drm_device_t *dev,
 				OUT_RING( GFX_OP_SCISSOR | SC_UPDATE_SCISSOR | 
 					  SC_ENABLE );
 				OUT_RING( GFX_OP_SCISSOR_INFO );
-				OUT_RING( box[i].x1 | (box[i].y1 << 16) );
+				OUT_RING( box[i].x1 | (box[i].y1<<16) );
 				OUT_RING( (box[i].x2-1) | ((box[i].y2-1)<<16) );
 				ADVANCE_LP_RING();
 			}
@@ -479,7 +859,9 @@ static void i810_dma_service(int irq, void *device, struct pt_regs *regs)
    	temp = temp & ~(0x6000);
    	if(temp != 0) I810_WRITE16(I810REG_INT_IDENTITY_R, 
 				   temp); /* Clear all interrupts */
-   
+	else
+	   return;
+ 
    	queue_task(&dev->tq, &tq_immediate);
    	mark_bh(IMMEDIATE_BH);
 }
@@ -539,7 +921,7 @@ int i810_irq_install(drm_device_t *dev, int irq)
 				/* Install handler */
 	if ((retcode = request_irq(dev->irq,
 				   i810_dma_service,
-				   0,
+				   SA_SHIRQ,
 				   dev->devname,
 				   dev))) {
 		down(&dev->struct_sem);
@@ -560,6 +942,9 @@ int i810_irq_uninstall(drm_device_t *dev)
 	int irq;
    	u16 temp;
 
+
+/*  	return 0; */
+
 	down(&dev->struct_sem);
 	irq	 = dev->irq;
 	dev->irq = 0;
@@ -618,10 +1003,15 @@ static inline void i810_dma_emit_flush(drm_device_t *dev)
    	RING_LOCALS;
 
    	i810_kernel_lost_context(dev);
+
    	BEGIN_LP_RING(2);
       	OUT_RING( CMD_REPORT_HEAD );
-   	OUT_RING( GFX_OP_USER_INTERRUPT );
+      	OUT_RING( GFX_OP_USER_INTERRUPT );
       	ADVANCE_LP_RING();
+
+/*  	i810_wait_ring( dev, dev_priv->ring.Size - 8 ); */
+/*     	atomic_set(&dev_priv->flush_done, 1); */
+/*     	wake_up_interruptible(&dev_priv->flush_queue); */
 }
 
 static inline void i810_dma_quiescent_emit(drm_device_t *dev)
@@ -630,13 +1020,17 @@ static inline void i810_dma_quiescent_emit(drm_device_t *dev)
    	RING_LOCALS;
 
   	i810_kernel_lost_context(dev);
-   	BEGIN_LP_RING(4);
 
+   	BEGIN_LP_RING(4);
    	OUT_RING( INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE );
    	OUT_RING( CMD_REPORT_HEAD );
-   	OUT_RING( GFX_OP_USER_INTERRUPT );
-   	OUT_RING( 0 );
+      	OUT_RING( 0 );
+      	OUT_RING( GFX_OP_USER_INTERRUPT );
    	ADVANCE_LP_RING();
+
+/*  	i810_wait_ring( dev, dev_priv->ring.Size - 8 ); */
+/*     	atomic_set(&dev_priv->flush_done, 1); */
+/*     	wake_up_interruptible(&dev_priv->flush_queue); */
 }
 
 static void i810_dma_quiescent(drm_device_t *dev)
@@ -676,8 +1070,9 @@ static int i810_flush_queue(drm_device_t *dev)
 {
    	DECLARE_WAITQUEUE(entry, current);
   	drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
+	drm_device_dma_t *dma = dev->dma;
 	unsigned long end;
-   	int ret = 0;      
+   	int i, ret = 0;      
 
    	if(dev_priv == NULL) {
 	   	return 0;
@@ -702,7 +1097,21 @@ static int i810_flush_queue(drm_device_t *dev)
    
    	current->state = TASK_RUNNING;
    	remove_wait_queue(&dev_priv->flush_queue, &entry);
-   
+
+
+   	for (i = 0; i < dma->buf_count; i++) {
+	   	drm_buf_t *buf = dma->buflist[ i ];
+	   	drm_i810_buf_priv_t *buf_priv = buf->dev_private;
+	   
+		int used = cmpxchg(buf_priv->in_use, I810_BUF_HARDWARE, 
+				   I810_BUF_FREE);
+
+		if (used == I810_BUF_HARDWARE)
+			DRM_DEBUG("reclaimed from HARDWARE\n");
+		if (used == I810_BUF_CLIENT)
+			DRM_DEBUG("still on client HARDWARE\n");
+	}
+
    	return ret;
 }
 
@@ -713,20 +1122,23 @@ void i810_reclaim_buffers(drm_device_t *dev, pid_t pid)
 	int		 i;
 
 	if (!dma) return;
-      	if(dev->dev_private == NULL) return;
-	if(dma->buflist == NULL) return;
+      	if (!dev->dev_private) return;
+	if (!dma->buflist) return;
+
         i810_flush_queue(dev);
 
 	for (i = 0; i < dma->buf_count; i++) {
 	   	drm_buf_t *buf = dma->buflist[ i ];
 	   	drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 	   
-		/* Only buffers that need to get reclaimed ever 
-		 * get set to free 
-		 */
 		if (buf->pid == pid && buf_priv) {
-		   	cmpxchg(buf_priv->in_use, 
-				I810_BUF_USED, I810_BUF_FREE);
+			int used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, 
+					   I810_BUF_FREE);
+
+			if (used == I810_BUF_CLIENT)
+				DRM_DEBUG("reclaimed from client\n");
+		   	if(buf_priv->currently_mapped == I810_BUF_MAPPED)
+		     		buf_priv->currently_mapped = I810_BUF_UNMAPPED;
 		}
 	}
 }
@@ -760,19 +1172,6 @@ int i810_lock(struct inode *inode, struct file *filp, unsigned int cmd,
 	 */
 
 	if (!ret) {
-#if 0
-	   	if (_DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock)
-		    != lock.context) {
-			long j = jiffies - dev->lock.lock_time;
-
-			if (j > 0 && j <= DRM_LOCK_SLICE) {
-				/* Can't take lock if we just had it and
-				   there is contention. */
-				current->state = TASK_INTERRUPTIBLE;
-				schedule_timeout(j);
-			}
-		}
-#endif
 		add_wait_queue(&dev->lock.lock_queue, &entry);
 		for (;;) {
 			if (!dev->lock.hw_lock) {
@@ -829,90 +1228,80 @@ int i810_flush_ioctl(struct inode *inode, struct file *filp,
    	return 0;
 }
 
-static int i810DmaGeneral(drm_device_t *dev, drm_i810_general_t *args)
-{
-	drm_device_dma_t *dma = dev->dma;
-   	drm_buf_t *buf = dma->buflist[ args->idx ];
-   	
-	if (!args->used) {
-	   	i810_freelist_put(dev, buf);
-	} else {  
-		i810_dma_dispatch_general( dev, buf, args->used );
-		atomic_add(args->used, &dma->total_bytes);
-		atomic_inc(&dma->total_dmas);
-	}
-	return 0; 
-}
-
-static int i810DmaVertex(drm_device_t *dev, drm_i810_vertex_t *args)
-{
-	drm_device_dma_t *dma = dev->dma;
-	drm_buf_t *buf = dma->buflist[ args->idx ];
-   	i810_dma_dispatch_vertex( dev, buf, args->discard, args->used );
-   	atomic_add(args->used, &dma->total_bytes);
-	atomic_inc(&dma->total_dmas);
-   	return 0;
-}
 
-int i810_dma_general(struct inode *inode, struct file *filp,
-		     unsigned int cmd, unsigned long arg)
+int i810_dma_vertex(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_i810_general_t general;
-      	drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
+	drm_device_dma_t *dma = dev->dma;
+   	drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
       	u32 *hw_status = (u32 *)dev_priv->hw_status_page;
    	drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *) 
      					dev_priv->sarea_priv; 
+	drm_i810_vertex_t vertex;
 
-	int retcode = 0;
-	
-	copy_from_user_ret(&general, (drm_i810_general_t *)arg, sizeof(general),
+	copy_from_user_ret(&vertex, (drm_i810_vertex_t *)arg, sizeof(vertex),
 			   -EFAULT);
 
-	DRM_DEBUG("i810 dma general idx %d used %d\n",
-		  general.idx, general.used);
-   
    	if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
-		DRM_ERROR("i810_dma_general called without lock held\n");
+		DRM_ERROR("i810_dma_vertex called without lock held\n");
 		return -EINVAL;
 	}
 
-	retcode = i810DmaGeneral(dev, &general);
+	DRM_DEBUG("i810 dma vertex, idx %d used %d discard %d\n",
+		  vertex.idx, vertex.used, vertex.discard);
+
+	i810_dma_dispatch_vertex( dev, 
+				  dma->buflist[ vertex.idx ], 
+				  vertex.discard, vertex.used );
+
+   	atomic_add(vertex.used, &dma->total_bytes);
+	atomic_inc(&dma->total_dmas);
 	sarea_priv->last_enqueue = dev_priv->counter-1;
    	sarea_priv->last_dispatch = (int) hw_status[5];
    
-	return retcode;
+	return 0;
 }
 
-int i810_dma_vertex(struct inode *inode, struct file *filp,
-	       unsigned int cmd, unsigned long arg)
+
+
+int i810_clear_bufs(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_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
-      	u32 *hw_status = (u32 *)dev_priv->hw_status_page;
-   	drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *) 
-     					dev_priv->sarea_priv; 
-	drm_i810_vertex_t vertex;
-	int retcode = 0;
+	drm_i810_clear_t clear;
 
-	copy_from_user_ret(&vertex, (drm_i810_vertex_t *)arg, sizeof(vertex),
+   	copy_from_user_ret(&clear, (drm_i810_clear_t *)arg, sizeof(clear), 
 			   -EFAULT);
+   
    	if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
-		DRM_ERROR("i810_dma_vertex called without lock held\n");
+		DRM_ERROR("i810_clear_bufs called without lock held\n");
 		return -EINVAL;
 	}
 
-	DRM_DEBUG("i810 dma vertex, idx %d used %d discard %d\n",
-		  vertex.idx, vertex.used, vertex.discard);
+	i810_dma_dispatch_clear( dev, clear.flags, 
+				 clear.clear_color, 
+				 clear.clear_depth );
+   	return 0;
+}
 
-	retcode = i810DmaVertex(dev, &vertex);
-	sarea_priv->last_enqueue = dev_priv->counter-1;
-   	sarea_priv->last_dispatch = (int) hw_status[5];
+int i810_swap_bufs(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;
    
-	return retcode;
+	DRM_DEBUG("i810_swap_bufs\n");
 
+   	if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
+		DRM_ERROR("i810_swap_buf called without lock held\n");
+		return -EINVAL;
+	}
+
+	i810_dma_dispatch_swap( dev );
+   	return 0;
 }
 
 int i810_getage(struct inode *inode, struct file *filp, unsigned int cmd,
@@ -929,53 +1318,32 @@ int i810_getage(struct inode *inode, struct file *filp, unsigned int cmd,
 	return 0;
 }
 
-int i810_dma(struct inode *inode, struct file *filp, unsigned int cmd,
-	    unsigned long arg)
+int i810_getbuf(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_device_dma_t  *dma	    = dev->dma;
 	int		  retcode   = 0;
-	drm_dma_t	  d;
+	drm_i810_dma_t	  d;
    	drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
    	u32 *hw_status = (u32 *)dev_priv->hw_status_page;
    	drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *) 
      					dev_priv->sarea_priv; 
 
-
-   	copy_from_user_ret(&d, (drm_dma_t *)arg, sizeof(d), -EFAULT);
-	DRM_DEBUG("%d %d: %d send, %d req\n",
-		  current->pid, d.context, d.send_count, d.request_count);
+	DRM_DEBUG("getbuf\n");
+   	copy_from_user_ret(&d, (drm_i810_dma_t *)arg, sizeof(d), -EFAULT);
    
 	if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
 		DRM_ERROR("i810_dma called without lock held\n");
 		return -EINVAL;
 	}
-
-	/* Please don't send us buffers.
-	 */
-	if (d.send_count != 0) {
-		DRM_ERROR("Process %d trying to send %d buffers via drmDMA\n",
-			  current->pid, d.send_count);
-		return -EINVAL;
-	}
 	
-	/* We'll send you buffers.
-	 */
-	if (d.request_count < 0 || d.request_count > dma->buf_count) {
-		DRM_ERROR("Process %d trying to get %d buffers (of %d max)\n",
-			  current->pid, d.request_count, dma->buf_count);
-		return -EINVAL;
-	}
-	
-	d.granted_count = 0;
+	d.granted = 0;
 
-	if (!retcode && d.request_count) {
-		retcode = i810_dma_get_buffers(dev, &d);
-	}
+	retcode = i810_dma_get_buffer(dev, &d, filp);
 
-	DRM_DEBUG("i810_dma: %d returning, granted = %d\n",
-		  current->pid, d.granted_count);
+	DRM_DEBUG("i810_dma: %d returning %d, granted = %d\n",
+		  current->pid, retcode, d.granted);
 
 	copy_to_user_ret((drm_dma_t *)arg, &d, sizeof(d), -EFAULT);   
    	sarea_priv->last_dispatch = (int) hw_status[5];
diff --git a/linux/i810_drm.h b/linux/i810_drm.h
index 0754874c..4c8e09f6 100644
--- a/linux/i810_drm.h
+++ b/linux/i810_drm.h
@@ -5,35 +5,112 @@
  * if you change them, you must change the defines in the Xserver.
  */
 
-/* Might one day want to support the client-side ringbuffer code again.
- */
 #ifndef _I810_DEFINES_
 #define _I810_DEFINES_
 
-#define I810_USE_BATCH			1
 #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 	2
+#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
+	enum {
+		I810_INIT_DMA = 0x01,
+		I810_CLEANUP_DMA = 0x02
 	} func;
-   	int ring_map_idx;
-      	int buffer_map_idx;
+	int ring_map_idx;
+	int buffer_map_idx;
 	int sarea_priv_offset;
-   	unsigned long ring_start;
-   	unsigned long ring_end;
-   	unsigned long ring_size;
+	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
@@ -46,6 +123,11 @@ typedef struct _drm_i810_tex_region {
 } 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];
 
@@ -72,12 +154,18 @@ typedef struct _drm_i810_sarea {
 	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_general {
-   	int idx;
-	int used;
-} drm_i810_general_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
@@ -90,4 +178,11 @@ typedef struct _drm_i810_vertex {
 	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/linux/i810_drv.c b/linux/i810_drv.c
index f1c83250..75b402da 100644
--- a/linux/i810_drv.c
+++ b/linux/i810_drv.c
@@ -80,7 +80,6 @@ static drm_ioctl_desc_t	      i810_ioctls[] = {
 	[DRM_IOCTL_NR(DRM_IOCTL_ADD_BUFS)]    = { i810_addbufs,	  1, 1 },
 	[DRM_IOCTL_NR(DRM_IOCTL_MARK_BUFS)]   = { i810_markbufs,  1, 1 },
 	[DRM_IOCTL_NR(DRM_IOCTL_INFO_BUFS)]   = { i810_infobufs,  1, 0 },
-	[DRM_IOCTL_NR(DRM_IOCTL_MAP_BUFS)]    = { i810_mapbufs,	  1, 0 },
 	[DRM_IOCTL_NR(DRM_IOCTL_FREE_BUFS)]   = { i810_freebufs,  1, 0 },
 
 	[DRM_IOCTL_NR(DRM_IOCTL_ADD_CTX)]     = { i810_addctx,	  1, 1 },
@@ -93,8 +92,6 @@ static drm_ioctl_desc_t	      i810_ioctls[] = {
 	[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)]	      = { i810_dma,	  1, 0 },
-
 	[DRM_IOCTL_NR(DRM_IOCTL_LOCK)]	      = { i810_lock,	  1, 0 },
 	[DRM_IOCTL_NR(DRM_IOCTL_UNLOCK)]      = { i810_unlock,	  1, 0 },
 	[DRM_IOCTL_NR(DRM_IOCTL_FINISH)]      = { drm_finish,	  1, 0 },
@@ -107,11 +104,14 @@ static drm_ioctl_desc_t	      i810_ioctls[] = {
 	[DRM_IOCTL_NR(DRM_IOCTL_AGP_FREE)]    = { drm_agp_free,    1, 1 },
 	[DRM_IOCTL_NR(DRM_IOCTL_AGP_BIND)]    = { drm_agp_bind,    1, 1 },
 	[DRM_IOCTL_NR(DRM_IOCTL_AGP_UNBIND)]  = { drm_agp_unbind,  1, 1 },
+
    	[DRM_IOCTL_NR(DRM_IOCTL_I810_INIT)]   = { i810_dma_init,   1, 1 },
    	[DRM_IOCTL_NR(DRM_IOCTL_I810_VERTEX)] = { i810_dma_vertex, 1, 0 },
-   	[DRM_IOCTL_NR(DRM_IOCTL_I810_DMA)]    = { i810_dma_general,1, 0 },
+   	[DRM_IOCTL_NR(DRM_IOCTL_I810_CLEAR)]  = { i810_clear_bufs, 1, 0 },
       	[DRM_IOCTL_NR(DRM_IOCTL_I810_FLUSH)]  = { i810_flush_ioctl,1, 0 },
    	[DRM_IOCTL_NR(DRM_IOCTL_I810_GETAGE)] = { i810_getage,     1, 0 },
+	[DRM_IOCTL_NR(DRM_IOCTL_I810_GETBUF)] = { i810_getbuf,     1, 0 },
+   	[DRM_IOCTL_NR(DRM_IOCTL_I810_SWAP)]   = { i810_swap_bufs,  1, 0 },
 };
 
 #define I810_IOCTL_COUNT DRM_ARRAY_SIZE(i810_ioctls)
diff --git a/linux/i810_drv.h b/linux/i810_drv.h
index 1badd36b..334cacb2 100644
--- a/linux/i810_drv.h
+++ b/linux/i810_drv.h
@@ -32,6 +32,16 @@
 #ifndef _I810_DRV_H_
 #define _I810_DRV_H_
 
+typedef struct drm_i810_buf_priv {
+   	u32 *in_use;
+   	int my_use_idx;
+	int currently_mapped;
+	void *virtual;
+	void *kernel_virtual;
+	int map_count;
+   	struct vm_area_struct *vma;
+} drm_i810_buf_priv_t;
+
 typedef struct _drm_i810_ring_buffer{
 	int tail_mask;
 	unsigned long Start;
@@ -55,6 +65,15 @@ typedef struct drm_i810_private {
 
    	atomic_t flush_done;
    	wait_queue_head_t flush_queue;	/* Processes waiting until flush    */
+	drm_buf_t *mmap_buffer;
+
+	
+	u32 front_di1, back_di1, zi1;
+	
+	int back_offset;
+	int depth_offset;
+	int w, h;
+	int pitch;
 } drm_i810_private_t;
 
 				/* i810_drv.c */
@@ -71,8 +90,8 @@ extern int  i810_unlock(struct inode *inode, struct file *filp,
 
 				/* i810_dma.c */
 extern int  i810_dma_schedule(drm_device_t *dev, int locked);
-extern int  i810_dma(struct inode *inode, struct file *filp,
-		      unsigned int cmd, unsigned long arg);
+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,
@@ -86,6 +105,7 @@ extern int  i810_flush_ioctl(struct inode *inode, struct file *filp,
 extern void i810_reclaim_buffers(drm_device_t *dev, pid_t pid);
 extern int  i810_getage(struct inode *inode, struct file *filp, unsigned int cmd,
 			unsigned long arg);
+extern int i810_mmap_buffers(struct file *filp, struct vm_area_struct *vma);
 
 
 				/* i810_bufs.c */
@@ -97,8 +117,6 @@ extern int  i810_markbufs(struct inode *inode, struct file *filp,
 			 unsigned int cmd, unsigned long arg);
 extern int  i810_freebufs(struct inode *inode, struct file *filp,
 			 unsigned int cmd, unsigned long arg);
-extern int  i810_mapbufs(struct inode *inode, struct file *filp,
-			unsigned int cmd, unsigned long arg);
 extern int  i810_addmap(struct inode *inode, struct file *filp,
 		       unsigned int cmd, unsigned long arg);
 
@@ -121,32 +139,17 @@ extern int  i810_rmctx(struct inode *inode, struct file *filp,
 extern int  i810_context_switch(drm_device_t *dev, int old, int new);
 extern int  i810_context_switch_complete(drm_device_t *dev, int new);
 
-
-
-
-/* Copy the outstanding cliprects for every I810_DMA_VERTEX buffer.
- * This can be fixed by emitting directly to the ringbuffer in the
- * 'vertex_dma' ioctl.  
-*/
-typedef struct {
-   	u32 *in_use;
-   	int my_use_idx;
-} drm_i810_buf_priv_t;
-
-
-#define I810_DMA_GENERAL 0
-#define I810_DMA_VERTEX  1
-#define I810_DMA_DISCARD 2	/* not used */
-
 #define I810_VERBOSE 0
 
 
 int i810_dma_vertex(struct inode *inode, struct file *filp,
 		    unsigned int cmd, unsigned long arg);
 
-int i810_dma_general(struct inode *inode, struct file *filp,
-		     unsigned int cmd, unsigned long arg);
+int i810_swap_bufs(struct inode *inode, struct file *filp,
+		   unsigned int cmd, unsigned long arg);
 
+int i810_clear_bufs(struct inode *inode, struct file *filp,
+		    unsigned int cmd, unsigned long arg);
 
 #define GFX_OP_USER_INTERRUPT 		((0<<29)|(2<<23))
 #define GFX_OP_BREAKPOINT_INTERRUPT	((0<<29)|(1<<23))
@@ -200,5 +203,22 @@ int i810_dma_general(struct inode *inode, struct file *filp,
 #define SCI_YMAX_MASK      (0xffff<<16)
 #define SCI_XMAX_MASK      (0xffff<<0)
 
+#define GFX_OP_COLOR_FACTOR      ((0x3<<29)|(0x1d<<24)|(0x1<<16)|0x0)
+#define GFX_OP_STIPPLE           ((0x3<<29)|(0x1d<<24)|(0x83<<16))
+#define GFX_OP_MAP_INFO          ((0x3<<29)|(0x1d<<24)|0x2)
+#define GFX_OP_DESTBUFFER_VARS   ((0x3<<29)|(0x1d<<24)|(0x85<<16)|0x0)
+#define GFX_OP_DRAWRECT_INFO     ((0x3<<29)|(0x1d<<24)|(0x80<<16)|(0x3))
+#define GFX_OP_PRIMITIVE         ((0x3<<29)|(0x1f<<24))
+
+#define CMD_OP_Z_BUFFER_INFO     ((0x0<<29)|(0x16<<23))
+#define CMD_OP_DESTBUFFER_INFO   ((0x0<<29)|(0x15<<23))
+
+#define BR00_BITBLT_CLIENT   0x40000000
+#define BR00_OP_COLOR_BLT    0x10000000
+#define BR00_OP_SRC_COPY_BLT 0x10C00000
+#define BR13_SOLID_PATTERN   0x80000000
+
+
+
 #endif
 
diff --git a/linux/mga_dma.c b/linux/mga_dma.c
index 371706f4..fe6a7b52 100644
--- a/linux/mga_dma.c
+++ b/linux/mga_dma.c
@@ -53,6 +53,7 @@ static unsigned long mga_alloc_page(drm_device_t *dev)
 {
 	unsigned long address;
    
+	DRM_DEBUG("%s\n", __FUNCTION__);
 	address = __get_free_page(GFP_KERNEL);
 	if(address == 0UL) {
 		return 0;
@@ -65,6 +66,8 @@ static unsigned long mga_alloc_page(drm_device_t *dev)
 
 static void mga_free_page(drm_device_t *dev, unsigned long page)
 {
+	DRM_DEBUG("%s\n", __FUNCTION__);
+
 	if(page == 0UL) {
 		return;
 	}
@@ -80,9 +83,11 @@ static void mga_delay(void)
    	return;
 }
 
-static void mga_flush_write_combine(void)
+void mga_flush_write_combine(void)
 {
    	int xchangeDummy;
+	DRM_DEBUG("%s\n", __FUNCTION__);
+
    	__asm__ volatile(" push %%eax ; xchg %%eax, %0 ; pop %%eax" : : "m" (xchangeDummy));
    	__asm__ volatile(" push %%eax ; push %%ebx ; push %%ecx ; push %%edx ;"
 			 " movl $0,%%eax ; cpuid ; pop %%edx ; pop %%ecx ; pop %%ebx ;"
@@ -94,18 +99,6 @@ static void mga_flush_write_combine(void)
 #define MGA_BUF_USED 	0xffffffff
 #define MGA_BUF_FREE	0
 
-static void mga_freelist_debug(drm_mga_freelist_t *item)
-{
-   	if(item->buf != NULL) {
-     		DRM_DEBUG("buf index : %d\n", item->buf->idx);
-	} else {
-	   	DRM_DEBUG("Freelist head\n");
-	}
-   	DRM_DEBUG("item->age : %x\n", item->age);
-   	DRM_DEBUG("item->next : %p\n", item->next);
-   	DRM_DEBUG("item->prev : %p\n", item->prev);
-}
-
 static int mga_freelist_init(drm_device_t *dev)
 {
       	drm_device_dma_t *dma = dev->dma;
@@ -114,7 +107,9 @@ static int mga_freelist_init(drm_device_t *dev)
       	drm_mga_private_t *dev_priv = (drm_mga_private_t *)dev->dev_private;
    	drm_mga_freelist_t *item;
    	int i;
-   
+
+	DRM_DEBUG("%s\n", __FUNCTION__);
+
    	dev_priv->head = drm_alloc(sizeof(drm_mga_freelist_t), DRM_MEM_DRIVER);
 	if(dev_priv->head == NULL) return -ENOMEM;
    	memset(dev_priv->head, 0, sizeof(drm_mga_freelist_t));
@@ -136,19 +131,10 @@ static int mga_freelist_init(drm_device_t *dev)
 	   	item->buf = buf;
 	   	buf_priv->my_freelist = item;
 		buf_priv->discard = 0;
+		buf_priv->dispatched = 0;
 	   	dev_priv->head->next = item;
 	}
    
-   	item = dev_priv->head;
-   	while(item) {
-		mga_freelist_debug(item);
-		item = item->next;
-	}
-   	DRM_DEBUG("Head\n");
-   	mga_freelist_debug(dev_priv->head);
-   	DRM_DEBUG("Tail\n");
-   	mga_freelist_debug(dev_priv->tail);
-   
    	return 0;
 }
 
@@ -158,6 +144,8 @@ static void mga_freelist_cleanup(drm_device_t *dev)
    	drm_mga_freelist_t *item;
    	drm_mga_freelist_t *prev;
 
+	DRM_DEBUG("%s\n", __FUNCTION__);
+
    	item = dev_priv->head;
    	while(item) {
 	   	prev = item;
@@ -174,14 +162,14 @@ static inline void mga_dma_quiescent(drm_device_t *dev)
 	drm_device_dma_t  *dma      = dev->dma;
 	drm_mga_private_t *dev_priv = (drm_mga_private_t *)dev->dev_private;
 	drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
-	__volatile__ unsigned int *status =
-		(__volatile__ unsigned int *)dev_priv->status_page;
    	unsigned long end;
 	int i;
 
+	DRM_DEBUG("%s\n", __FUNCTION__);
 	end = jiffies + (HZ*3);
     	while(1) {
-		if(!test_and_set_bit(0, &dev_priv->dispatch_lock)) {
+		if(!test_and_set_bit(MGA_IN_DISPATCH, 
+				     &dev_priv->dispatch_status)) {
 			break;
 		}
 	   	if((signed)(end - jiffies) <= 0) {
@@ -205,51 +193,25 @@ static inline void mga_dma_quiescent(drm_device_t *dev)
 		}
 		for (i = 0 ; i < 2000 ; i++) mga_delay();	  
 	}
-    	DRM_DEBUG("status[1] : %x last_sync_tag : %x\n", status[1],
-		  dev_priv->last_sync_tag);
     	sarea_priv->dirty |= MGA_DMA_FLUSH;
 
 out_status:
-    	clear_bit(0, &dev_priv->dispatch_lock);
+    	clear_bit(MGA_IN_DISPATCH, &dev_priv->dispatch_status);
 out_nolock:
 }
 
-#define FREELIST_INITIAL (MGA_DMA_BUF_NR * 2)
-#define FREELIST_COMPARE(age) ((age >> 2))
-
-unsigned int mga_create_sync_tag(drm_device_t *dev)
+static void mga_reset_freelist(drm_device_t *dev)
 {
-      	drm_mga_private_t *dev_priv = 
-     		(drm_mga_private_t *) dev->dev_private;
-   	unsigned int temp;
-      	drm_buf_t *buf;
+   	drm_device_dma_t  *dma      = dev->dma;
+   	drm_buf_t *buf;
    	drm_mga_buf_priv_t *buf_priv;
-      	drm_device_dma_t *dma = dev->dma;
-   	int i;
-   
-   	dev_priv->sync_tag++;
-   
-   	if(dev_priv->sync_tag < FREELIST_INITIAL) {
-	   	dev_priv->sync_tag = FREELIST_INITIAL;
-	}
-   	if(dev_priv->sync_tag > 0x3fffffff) {
-		mga_flush_queue(dev);
-	   	mga_dma_quiescent(dev);
-	    
-	   	for (i = 0; i < dma->buf_count; i++) {
-			buf = dma->buflist[ i ];
-			buf_priv = buf->dev_private;
-			buf_priv->my_freelist->age = MGA_BUF_FREE;
-		}
-	   	
-	   	dev_priv->sync_tag = FREELIST_INITIAL;
-	}
-   	temp = dev_priv->sync_tag << 2;
-
-	dev_priv->sarea_priv->last_enqueue = temp;
+	int i;
 
-   	DRM_DEBUG("sync_tag : %x\n", temp);
-   	return temp;
+   	for (i = 0; i < dma->buf_count; i++) {
+	   	buf = dma->buflist[ i ];
+	        buf_priv = buf->dev_private;
+		buf_priv->my_freelist->age = MGA_BUF_FREE;
+	}
 }
 
 /* Least recently used :
@@ -258,23 +220,52 @@ unsigned int mga_create_sync_tag(drm_device_t *dev)
 
 drm_buf_t *mga_freelist_get(drm_device_t *dev)
 {
+   	DECLARE_WAITQUEUE(entry, current);
    	drm_mga_private_t *dev_priv = 
      		(drm_mga_private_t *) dev->dev_private;
-   	__volatile__ unsigned int *status = 
-     		(__volatile__ unsigned int *)dev_priv->status_page;
 	drm_mga_freelist_t *prev;
    	drm_mga_freelist_t *next;
+	static int failed = 0;
+
+	DRM_DEBUG("%s : tail->age : %d last_prim_age : %d\n", __FUNCTION__,
+	       dev_priv->tail->age, dev_priv->last_prim_age);
    
-   	if((dev_priv->tail->age >> 2) <= FREELIST_COMPARE(status[1])) {
+	if(failed >= 1000 && dev_priv->tail->age >= dev_priv->last_prim_age) {
+		DRM_DEBUG("I'm waiting on the freelist!!! %d\n", 
+		       dev_priv->last_prim_age);
+	   	set_bit(MGA_IN_GETBUF, &dev_priv->dispatch_status);
+		current->state = TASK_INTERRUPTIBLE;
+	   	add_wait_queue(&dev_priv->buf_queue, &entry);
+	   	for (;;) {
+		   	mga_dma_schedule(dev, 0);
+		   	if(!test_bit(MGA_IN_GETBUF, 
+				     &dev_priv->dispatch_status)) 
+				break;
+		   	atomic_inc(&dev->total_sleeps);
+		   	schedule();
+		   	if (signal_pending(current)) {
+				clear_bit(MGA_IN_GETBUF,
+					  &dev_priv->dispatch_status);
+			   	goto failed_getbuf;
+			}
+		}
+	   	current->state = TASK_RUNNING;
+	   	remove_wait_queue(&dev_priv->buf_queue, &entry);
+	}
+   
+   	if(dev_priv->tail->age < dev_priv->last_prim_age) {
 		prev = dev_priv->tail->prev;
 	   	next = dev_priv->tail;
 	   	prev->next = NULL;
 	   	next->prev = next->next = NULL;
 	   	dev_priv->tail = prev;
 	   	next->age = MGA_BUF_USED;
+		failed = 0;
 	   	return next->buf;
-	} 
+	}
 
+failed_getbuf:
+	failed++;
    	return NULL;
 }
 
@@ -287,6 +278,8 @@ int mga_freelist_put(drm_device_t *dev, drm_buf_t *buf)
    	drm_mga_freelist_t *head;
    	drm_mga_freelist_t *next;
 
+	DRM_DEBUG("%s\n", __FUNCTION__);
+
    	if(buf_priv->my_freelist->age == MGA_BUF_USED) {
 		/* Discarded buffer, put it on the tail */
 		next = buf_priv->my_freelist;
@@ -313,32 +306,6 @@ int mga_freelist_put(drm_device_t *dev, drm_buf_t *buf)
    	return 0;
 }
 
-static void mga_print_all_primary(drm_device_t *dev)
-{
-      	drm_mga_private_t *dev_priv = dev->dev_private;
-   	drm_mga_prim_buf_t *prim;
-   	int i;
-
-   	DRM_DEBUG("Full list of primarys\n");
-     	for(i = 0; i < MGA_NUM_PRIM_BUFS; i++) {
-		prim = dev_priv->prim_bufs[i];
-		DRM_DEBUG("index : %d num_dwords : %d "
-			  "max_dwords : %d phy_head : %x\n",
-			  prim->idx, prim->num_dwords, 
-			  prim->max_dwords, prim->phys_head);
-		DRM_DEBUG("sec_used : %d swap_pending : %x "
-			  "in_use : %x force_fire : %d\n",
-			  prim->sec_used, prim->swap_pending, 
-			  prim->in_use, atomic_read(&prim->force_fire));
-		DRM_DEBUG("needs_overflow : %d\n", 
-			  atomic_read(&prim->needs_overflow));
-	}
-   
-   	DRM_DEBUG("current_idx : %d, next_idx : %d, last_idx : %d\n",
-		  dev_priv->next_prim->idx, dev_priv->last_prim->idx,
-		  dev_priv->current_prim->idx);
-}
-
 static int mga_init_primary_bufs(drm_device_t *dev, drm_mga_init_t *init)
 {
    	drm_mga_private_t *dev_priv = dev->dev_private;
@@ -346,10 +313,9 @@ static int mga_init_primary_bufs(drm_device_t *dev, drm_mga_init_t *init)
    	int i, temp, size_of_buf;
    	int offset = init->reserved_map_agpstart;
 
-   	DRM_DEBUG("mga_init_primary_bufs\n");
+	DRM_DEBUG("%s\n", __FUNCTION__);
    	dev_priv->primary_size = ((init->primary_size + PAGE_SIZE - 1) / 
 				  PAGE_SIZE) * PAGE_SIZE;
-   	DRM_DEBUG("primary_size\n");
    	size_of_buf = dev_priv->primary_size / MGA_NUM_PRIM_BUFS;
 	dev_priv->warp_ucode_size = init->warp_ucode_size;
    	dev_priv->prim_bufs = drm_alloc(sizeof(drm_mga_prim_buf_t *) * 
@@ -359,18 +325,12 @@ static int mga_init_primary_bufs(drm_device_t *dev, drm_mga_init_t *init)
 		DRM_ERROR("Unable to allocate memory for prim_buf\n");
 		return -ENOMEM;
 	}
-   	DRM_DEBUG("memset\n");
    	memset(dev_priv->prim_bufs, 
 	       0, sizeof(drm_mga_prim_buf_t *) * (MGA_NUM_PRIM_BUFS + 1));
    
    	temp = init->warp_ucode_size + dev_priv->primary_size;
 	temp = ((temp + PAGE_SIZE - 1) / PAGE_SIZE) * PAGE_SIZE;
 	   
-   	DRM_DEBUG("temp : %x\n", temp);
-   	DRM_DEBUG("dev->agp->base: %lx\n", dev->agp->base);
-   	DRM_DEBUG("init->reserved_map_agpstart: %x\n", 
-		  init->reserved_map_agpstart);
-   	DRM_DEBUG("ioremap\n");
 	dev_priv->ioremap = drm_ioremap(dev->agp->base + offset, 
 					temp);
 	if(dev_priv->ioremap == NULL) {
@@ -380,11 +340,9 @@ static int mga_init_primary_bufs(drm_device_t *dev, drm_mga_init_t *init)
    	init_waitqueue_head(&dev_priv->wait_queue);
    
    	for(i = 0; i < MGA_NUM_PRIM_BUFS; i++) {
-	   	DRM_DEBUG("For loop\n");
 	   	prim_buffer = drm_alloc(sizeof(drm_mga_prim_buf_t), 
 					DRM_MEM_DRIVER);
 	   	if(prim_buffer == NULL) return -ENOMEM;
-	   	DRM_DEBUG("memset\n");
 	   	memset(prim_buffer, 0, sizeof(drm_mga_prim_buf_t));
 	   	prim_buffer->phys_head = offset + dev->agp->base;
 	   	prim_buffer->current_dma_ptr = 
@@ -397,17 +355,18 @@ static int mga_init_primary_bufs(drm_device_t *dev, drm_mga_init_t *init)
 	   	prim_buffer->max_dwords -= 5; /* Leave room for the softrap */
 	   	prim_buffer->sec_used = 0;
 	   	prim_buffer->idx = i;
+		prim_buffer->prim_age = i + 1;
 	   	offset = offset + size_of_buf;
 	   	dev_priv->prim_bufs[i] = prim_buffer;
-	   	DRM_DEBUG("Looping\n");
 	}
 	dev_priv->current_prim_idx = 0;
         dev_priv->next_prim = 
 		dev_priv->last_prim = 
 		dev_priv->current_prim =
         	dev_priv->prim_bufs[0];
-   	set_bit(0, &dev_priv->current_prim->in_use);
-	DRM_DEBUG("init done\n");
+	dev_priv->next_prim_age = 2;	
+	dev_priv->last_prim_age = 1;
+   	set_bit(MGA_BUF_IN_USE, &dev_priv->current_prim->buffer_status);
    	return 0;
 }
 
@@ -421,9 +380,8 @@ void mga_fire_primary(drm_device_t *dev, drm_mga_prim_buf_t *prim)
    	int i;
    	int next_idx;
        	PRIMLOCALS;
-   
-    	DRM_DEBUG("mga_fire_primary\n");
-    	dev_priv->last_sync_tag = mga_create_sync_tag(dev); 
+
+   	DRM_DEBUG("%s\n", __FUNCTION__);
    	dev_priv->last_prim = prim;
    
  	/* We never check for overflow, b/c there is always room */
@@ -434,7 +392,7 @@ void mga_fire_primary(drm_device_t *dev, drm_mga_prim_buf_t *prim)
 	}
  	PRIMOUTREG( MGAREG_DMAPAD, 0);
  	PRIMOUTREG( MGAREG_DMAPAD, 0);
-       	PRIMOUTREG( MGAREG_DWGSYNC, dev_priv->last_sync_tag);
+       	PRIMOUTREG( MGAREG_DMAPAD, 0);
    	PRIMOUTREG( MGAREG_SOFTRAP, 0);
     	PRIMFINISH(prim);
 
@@ -469,13 +427,13 @@ void mga_fire_primary(drm_device_t *dev, drm_mga_prim_buf_t *prim)
 			for (i = 0 ; i < 4096 ; i++) mga_delay();
 		}
 	}
-	
+
    	mga_flush_write_combine();
     	atomic_inc(&dev_priv->pending_bufs);
-	atomic_inc(&dma->total_lost);
        	MGA_WRITE(MGAREG_PRIMADDRESS, phys_head | TT_GENERAL);
  	MGA_WRITE(MGAREG_PRIMEND, (phys_head + num_dwords * 4) | use_agp);
    	prim->num_dwords = 0;
+	sarea_priv->last_enqueue = prim->prim_age;
     
    	next_idx = prim->idx + 1;
     	if(next_idx >= MGA_NUM_PRIM_BUFS) 
@@ -487,11 +445,10 @@ void mga_fire_primary(drm_device_t *dev, drm_mga_prim_buf_t *prim)
  out_prim_wait:
 	prim->num_dwords = 0;
 	prim->sec_used = 0;
-	clear_bit(0, &prim->in_use);
+	clear_bit(MGA_BUF_IN_USE, &prim->buffer_status);
    	wake_up_interruptible(&dev_priv->wait_queue);
-	clear_bit(0, &prim->swap_pending);
-	clear_bit(0, &dev_priv->dispatch_lock);
-	atomic_dec(&dev_priv->pending_bufs);
+	clear_bit(MGA_BUF_SWAP_PENDING, &prim->buffer_status);
+	clear_bit(MGA_IN_DISPATCH, &dev_priv->dispatch_status);
 }
 
 int mga_advance_primary(drm_device_t *dev)
@@ -506,27 +463,28 @@ int mga_advance_primary(drm_device_t *dev)
    	/* This needs to reset the primary buffer if available,
 	 * we should collect stats on how many times it bites
 	 * it's tail */
+	DRM_DEBUG("%s\n", __FUNCTION__);
    
    	next_prim_idx = dev_priv->current_prim_idx + 1;
    	if(next_prim_idx >= MGA_NUM_PRIM_BUFS)
      		next_prim_idx = 0;
    	prim_buffer = dev_priv->prim_bufs[next_prim_idx];
-   	atomic_set(&dev_priv->in_wait, 1);
+	set_bit(MGA_IN_WAIT, &dev_priv->dispatch_status);
    
       	/* In use is cleared in interrupt handler */
    
-   	if(test_and_set_bit(0, &prim_buffer->in_use)) {
+   	if(test_and_set_bit(MGA_BUF_IN_USE, &prim_buffer->buffer_status)) {
 	   	add_wait_queue(&dev_priv->wait_queue, &entry);
+		current->state = TASK_INTERRUPTIBLE;
+
 	   	for (;;) {
-		   	current->state = TASK_INTERRUPTIBLE;
 		   	mga_dma_schedule(dev, 0);
-		   	if(!test_and_set_bit(0, &prim_buffer->in_use)) break;
+		   	if(!test_and_set_bit(MGA_BUF_IN_USE, 
+					     &prim_buffer->buffer_status)) 
+				break;
 		   	atomic_inc(&dev->total_sleeps);
 		   	atomic_inc(&dma->total_missed_sched);
-		   	mga_print_all_primary(dev);
-		   	DRM_DEBUG("Schedule in advance\n");
-		   	/* Three second delay */
-		   	schedule_timeout(HZ*3);
+		   	schedule();
 		   	if (signal_pending(current)) {
 			   	ret = -ERESTARTSYS;
 			   	break;
@@ -536,16 +494,27 @@ int mga_advance_primary(drm_device_t *dev)
 	   	remove_wait_queue(&dev_priv->wait_queue, &entry);
 	   	if(ret) return ret;
 	}
-   	atomic_set(&dev_priv->in_wait, 0);
+	clear_bit(MGA_IN_WAIT, &dev_priv->dispatch_status);
+
    	/* This primary buffer is now free to use */
    	prim_buffer->current_dma_ptr = prim_buffer->head;
    	prim_buffer->num_dwords = 0;
    	prim_buffer->sec_used = 0;
-   	atomic_set(&prim_buffer->needs_overflow, 0);
+	prim_buffer->prim_age = dev_priv->next_prim_age++;
+	if(prim_buffer->prim_age == 0 || prim_buffer->prim_age == 0xffffffff) {
+	   mga_flush_queue(dev);
+	   mga_dma_quiescent(dev);
+	   mga_reset_freelist(dev);
+	   prim_buffer->prim_age = (dev_priv->next_prim_age += 2);
+	}
+
+	/* Reset all buffer status stuff */
+	clear_bit(MGA_BUF_NEEDS_OVERFLOW, &prim_buffer->buffer_status);
+	clear_bit(MGA_BUF_FORCE_FIRE, &prim_buffer->buffer_status);
+	clear_bit(MGA_BUF_SWAP_PENDING, &prim_buffer->buffer_status);
+
    	dev_priv->current_prim = prim_buffer;
    	dev_priv->current_prim_idx = next_prim_idx;
-   	DRM_DEBUG("Primarys at advance\n");
-   	mga_print_all_primary(dev);
    	return 0;
 }
 
@@ -554,21 +523,29 @@ static inline int mga_decide_to_fire(drm_device_t *dev)
 {
    	drm_mga_private_t *dev_priv = (drm_mga_private_t *)dev->dev_private;
       	drm_device_dma_t  *dma	    = dev->dma;
-	
-   	if(atomic_read(&dev_priv->next_prim->force_fire))
-	{
+
+   	DRM_DEBUG("%s\n", __FUNCTION__);
+
+   	if(test_bit(MGA_BUF_FORCE_FIRE, &dev_priv->next_prim->buffer_status)) {
 	   	atomic_inc(&dma->total_prio);
 	   	return 1;
 	}
 
-	if (atomic_read(&dev_priv->in_flush) && dev_priv->next_prim->num_dwords)
-	{
+	if (test_bit(MGA_IN_GETBUF, &dev_priv->dispatch_status) &&
+	    dev_priv->next_prim->num_dwords) {
+	   	atomic_inc(&dma->total_prio);
+	   	return 1;
+	}
+
+	if (test_bit(MGA_IN_FLUSH, &dev_priv->dispatch_status) &&
+	    dev_priv->next_prim->num_dwords) {
 	   	atomic_inc(&dma->total_prio);
 	   	return 1;
 	}
    
    	if(atomic_read(&dev_priv->pending_bufs) <= MGA_NUM_PRIM_BUFS - 1) {
-		if(test_bit(0, &dev_priv->next_prim->swap_pending)) {
+		if(test_bit(MGA_BUF_SWAP_PENDING, 
+			    &dev_priv->next_prim->buffer_status)) {
 			atomic_inc(&dma->total_dmas);
 			return 1;
 		}
@@ -602,10 +579,11 @@ int mga_dma_schedule(drm_device_t *dev, int locked)
 		return -EBUSY;
 	}
    
-       	DRM_DEBUG("mga_dma_schedule\n");
+	DRM_DEBUG("%s\n", __FUNCTION__);
 
-   	if(atomic_read(&dev_priv->in_flush) || 
-	   atomic_read(&dev_priv->in_wait)) {
+   	if(test_bit(MGA_IN_FLUSH, &dev_priv->dispatch_status) || 
+	   test_bit(MGA_IN_WAIT, &dev_priv->dispatch_status) ||
+	   test_bit(MGA_IN_GETBUF, &dev_priv->dispatch_status)) {
 		locked = 1;
 	}
    
@@ -613,27 +591,25 @@ int mga_dma_schedule(drm_device_t *dev, int locked)
 	    !drm_lock_take(&dev->lock.hw_lock->lock, DRM_KERNEL_CONTEXT)) {
 	   	atomic_inc(&dma->total_missed_lock);
 	   	clear_bit(0, &dev->dma_flag);
+		DRM_DEBUG("Not locked\n");
 	   	return -EBUSY;
 	}
    	DRM_DEBUG("I'm locked\n");
 
-   
-   	if(!test_and_set_bit(0, &dev_priv->dispatch_lock)) {
+   	if(!test_and_set_bit(MGA_IN_DISPATCH, &dev_priv->dispatch_status)) {
 	   	/* Fire dma buffer */
 	   	if(mga_decide_to_fire(dev)) {
-		   	DRM_DEBUG("mga_fire_primary\n");
 		   	DRM_DEBUG("idx :%d\n", dev_priv->next_prim->idx);
-		   	atomic_set(&dev_priv->next_prim->force_fire, 0);
-		   	if(dev_priv->current_prim == dev_priv->next_prim &&
-			   dev_priv->next_prim->num_dwords != 0) {
+			clear_bit(MGA_BUF_FORCE_FIRE, 
+				  &dev_priv->next_prim->buffer_status);
+		   	if(dev_priv->current_prim == dev_priv->next_prim) {
 				/* Schedule overflow for a later time */
-				atomic_set(
-					&dev_priv->current_prim->needs_overflow,
-					1);
+				set_bit(MGA_BUF_NEEDS_OVERFLOW,
+					&dev_priv->next_prim->buffer_status);
 			}
 		   	mga_fire_primary(dev, dev_priv->next_prim);
 		} else {
-			clear_bit(0, &dev_priv->dispatch_lock);
+			clear_bit(MGA_IN_DISPATCH, &dev_priv->dispatch_status);
 		}
 	} else {
 		DRM_DEBUG("I can't get the dispatch lock\n");
@@ -646,17 +622,26 @@ int mga_dma_schedule(drm_device_t *dev, int locked)
 		}
 	}
 
-   	clear_bit(0, &dev->dma_flag);
-   
-      	if(atomic_read(&dev_priv->in_flush) == 1 &&
-	   dev_priv->next_prim->num_dwords == 0) {
-	   	/* Everything is on the hardware */
-	   	DRM_DEBUG("Primarys at Flush\n");
-	   	mga_print_all_primary(dev);
-	   	atomic_set(&dev_priv->in_flush, 0);
+      	if(test_bit(MGA_IN_FLUSH, &dev_priv->dispatch_status) &&
+	   dev_priv->next_prim->num_dwords == 0 &&
+	   atomic_read(&dev_priv->pending_bufs) == 0) {
+	   	/* Everything has been processed by the hardware */
+		clear_bit(MGA_IN_FLUSH, &dev_priv->dispatch_status);
 	   	wake_up_interruptible(&dev_priv->flush_queue);
 	}
 
+	if(test_bit(MGA_IN_GETBUF, &dev_priv->dispatch_status) &&
+	   dev_priv->tail->age < dev_priv->last_prim_age) {
+		clear_bit(MGA_IN_GETBUF, &dev_priv->dispatch_status);
+		DRM_DEBUG("Waking up buf queue\n");
+		wake_up_interruptible(&dev_priv->buf_queue);
+	} else if (test_bit(MGA_IN_GETBUF, &dev_priv->dispatch_status)) {
+	   	DRM_DEBUG("Not waking buf_queue on %d %d\n", 
+			  atomic_read(&dev->total_irq), 
+			  dev_priv->last_prim_age);
+	}
+
+   	clear_bit(0, &dev->dma_flag);
 	return 0;
 }
 
@@ -665,33 +650,35 @@ static void mga_dma_service(int irq, void *device, struct pt_regs *regs)
     	drm_device_t	 *dev = (drm_device_t *)device;
     	drm_mga_private_t *dev_priv = (drm_mga_private_t *)dev->dev_private;
     	drm_mga_prim_buf_t *last_prim_buffer;
-    	__volatile__ unsigned int *status = 
-      		(__volatile__ unsigned int *)dev_priv->status_page;
-    
+
+	DRM_DEBUG("%s\n", __FUNCTION__);
     	atomic_inc(&dev->total_irq);
+	if((MGA_READ(MGAREG_STATUS) & 0x00000001) != 0x00000001) return;
       	MGA_WRITE(MGAREG_ICLEAR, 0x00000001);
    	last_prim_buffer = dev_priv->last_prim;
     	last_prim_buffer->num_dwords = 0;
     	last_prim_buffer->sec_used = 0;
-      	clear_bit(0, &last_prim_buffer->in_use);
+	dev_priv->sarea_priv->last_dispatch = 
+		dev_priv->last_prim_age = last_prim_buffer->prim_age;
+      	clear_bit(MGA_BUF_IN_USE, &last_prim_buffer->buffer_status);
    	wake_up_interruptible(&dev_priv->wait_queue);
-      	clear_bit(0, &last_prim_buffer->swap_pending);
-      	clear_bit(0, &dev_priv->dispatch_lock);
+      	clear_bit(MGA_BUF_SWAP_PENDING, &last_prim_buffer->buffer_status);
+      	clear_bit(MGA_IN_DISPATCH, &dev_priv->dispatch_status);
       	atomic_dec(&dev_priv->pending_bufs);
-   	dev_priv->sarea_priv->last_dispatch = status[1];
    	queue_task(&dev->tq, &tq_immediate);
    	mark_bh(IMMEDIATE_BH);
 }
 
 static void mga_dma_task_queue(void *device)
 {
-   	drm_device_t *dev = (drm_device_t *) device;
-
-	mga_dma_schedule(dev, 0);
+	DRM_DEBUG("%s\n", __FUNCTION__);
+	mga_dma_schedule((drm_device_t *)device, 0);
 }
 
 int mga_dma_cleanup(drm_device_t *dev)
 {
+	DRM_DEBUG("%s\n", __FUNCTION__);
+
 	if(dev->dev_private) {
 		drm_mga_private_t *dev_priv = 
 			(drm_mga_private_t *) dev->dev_private;
@@ -740,14 +727,13 @@ static int mga_dma_initialize(drm_device_t *dev, drm_mga_init_t *init) {
 	drm_map_t *sarea_map = NULL;
 	int i;
 
+	DRM_DEBUG("%s\n", __FUNCTION__);
+
 	dev_priv = drm_alloc(sizeof(drm_mga_private_t), DRM_MEM_DRIVER);
 	if(dev_priv == NULL) return -ENOMEM;
 	dev->dev_private = (void *) dev_priv;
 
-	DRM_DEBUG("dev_private\n");
-
 	memset(dev_priv, 0, sizeof(drm_mga_private_t));
-      	atomic_set(&dev_priv->in_flush, 0);
 
 	if((init->reserved_map_idx >= dev->map_count) ||
 	   (init->buffer_map_idx >= dev->map_count)) {
@@ -762,7 +748,6 @@ static int mga_dma_initialize(drm_device_t *dev, drm_mga_init_t *init) {
 	dev_priv->sarea_priv = (drm_mga_sarea_t *) 
 		((u8 *)sarea_map->handle + 
 		 init->sarea_priv_offset);
-	DRM_DEBUG("sarea_priv\n");
 
 	/* Scale primary size to the next page */
 	dev_priv->chipset = init->chipset;
@@ -777,6 +762,7 @@ static int mga_dma_initialize(drm_device_t *dev, drm_mga_init_t *init) {
 
 	dev_priv->mAccess = init->mAccess;
    	init_waitqueue_head(&dev_priv->flush_queue);
+	init_waitqueue_head(&dev_priv->buf_queue);
 	dev_priv->WarpPipe = -1;
 
    	DRM_DEBUG("chipset: %d ucode_size: %d backOffset: %x depthOffset: %x\n",
@@ -796,20 +782,17 @@ static int mga_dma_initialize(drm_device_t *dev, drm_mga_init_t *init) {
 			  dev_priv->WarpIndex[i].phys_addr,
 			  dev_priv->WarpIndex[i].size);
 
-   	DRM_DEBUG("Doing init prim buffers\n");
    	if(mga_init_primary_bufs(dev, init) != 0) {
 		DRM_ERROR("Can not initialize primary buffers\n");
 		mga_dma_cleanup(dev);
 		return -ENOMEM;
 	}
-   	DRM_DEBUG("Done with init prim buffers\n");
    	dev_priv->real_status_page = mga_alloc_page(dev);
       	if(dev_priv->real_status_page == 0UL) {
 		mga_dma_cleanup(dev);
 		DRM_ERROR("Can not allocate status page\n");
 		return -ENOMEM;
 	}
-   	DRM_DEBUG("Status page at %lx\n", dev_priv->real_status_page);
 
    	dev_priv->status_page = 
 		ioremap_nocache(virt_to_bus((void *)dev_priv->real_status_page),
@@ -821,38 +804,23 @@ static int mga_dma_initialize(drm_device_t *dev, drm_mga_init_t *init) {
 		return -ENOMEM;
 	}
 
-   	DRM_DEBUG("Status page remapped to %p\n", dev_priv->status_page);
    	/* Write status page when secend or softrap occurs */
    	MGA_WRITE(MGAREG_PRIMPTR, 
 		  virt_to_bus((void *)dev_priv->real_status_page) | 0x00000003);
-   
-   	dev_priv->device = pci_find_device(0x102b, 0x0525, NULL);
-   	if(dev_priv->device == NULL) {
-		DRM_ERROR("Could not find pci device for card\n");
-		mga_dma_cleanup(dev);
-		return -EINVAL;
-	}
-   
-   	DRM_DEBUG("dma initialization\n");
+      
 
 	/* Private is now filled in, initialize the hardware */
 	{
-	   	__volatile__ unsigned int *status = 
-			(unsigned int *)dev_priv->status_page;
 		PRIMLOCALS;
 		PRIMGETPTR( dev_priv );
-	   
-	   	dev_priv->last_sync_tag = mga_create_sync_tag(dev);
-	   
+	   	   
 		PRIMOUTREG(MGAREG_DMAPAD, 0);
 		PRIMOUTREG(MGAREG_DMAPAD, 0);
-		PRIMOUTREG(MGAREG_DWGSYNC, dev_priv->last_sync_tag);
+		PRIMOUTREG(MGAREG_DWGSYNC, 0x0100);
 		PRIMOUTREG(MGAREG_SOFTRAP, 0);
 		/* Poll for the first buffer to insure that
 		 * the status register will be correct
 		 */
-	   	DRM_DEBUG("phys_head : %lx\n", (unsigned long)phys_head);
-   		status[1] = 0;
 	   
 		mga_flush_write_combine();
 	   	MGA_WRITE(MGAREG_PRIMADDRESS, phys_head | TT_GENERAL);
@@ -860,9 +828,7 @@ static int mga_dma_initialize(drm_device_t *dev, drm_mga_init_t *init) {
 		MGA_WRITE(MGAREG_PRIMEND, ((phys_head + num_dwords * 4) | 
 					   PDEA_pagpxfer_enable));
 	   
-	   	while(MGA_READ(MGAREG_DWGSYNC) != dev_priv->last_sync_tag) ;
-	   	DRM_DEBUG("status[0] after initialization : %x\n", status[0]);
-	   	DRM_DEBUG("status[1] after initialization : %x\n", status[1]);
+	   	while(MGA_READ(MGAREG_DWGSYNC) != 0x0100) ;
 	}
 
 	if(mga_freelist_init(dev) != 0) {
@@ -870,7 +836,6 @@ static int mga_dma_initialize(drm_device_t *dev, drm_mga_init_t *init) {
 	   	mga_dma_cleanup(dev);
 	   	return -ENOMEM;
 	}
-   	DRM_DEBUG("dma init was successful\n");
 	return 0;
 }
 
@@ -881,6 +846,8 @@ int mga_dma_init(struct inode *inode, struct file *filp,
 	drm_device_t *dev = priv->dev;
 	drm_mga_init_t init;
    
+   	DRM_DEBUG("%s\n", __FUNCTION__);
+
 	copy_from_user_ret(&init, (drm_mga_init_t *)arg, sizeof(init), -EFAULT);
    
 	switch(init.func) {
@@ -925,7 +892,7 @@ int mga_irq_install(drm_device_t *dev, int irq)
    				/* Install handler */
 	if ((retcode = request_irq(dev->irq,
 				   mga_dma_service,
-				   0,
+				   SA_SHIRQ,
 				   dev->devname,
 				   dev))) {
 		down(&dev->struct_sem);
@@ -964,7 +931,9 @@ int mga_control(struct inode *inode, struct file *filp, unsigned int cmd,
 	drm_control_t	ctl;
    
 	copy_from_user_ret(&ctl, (drm_control_t *)arg, sizeof(ctl), -EFAULT);
-	
+
+   	DRM_DEBUG("%s\n", __FUNCTION__);
+
 	switch (ctl.func) {
 	case DRM_INST_HANDLER:
 		return mga_irq_install(dev, ctl.irq);
@@ -981,30 +950,33 @@ static int mga_flush_queue(drm_device_t *dev)
   	drm_mga_private_t *dev_priv = (drm_mga_private_t *)dev->dev_private;
    	int ret = 0;
 
+   	DRM_DEBUG("%s\n", __FUNCTION__);
+
    	if(dev_priv == NULL) {
 	   	return 0;
 	}
    
    	if(dev_priv->next_prim->num_dwords != 0) {
-	   	atomic_set(&dev_priv->in_flush, 1);
+		set_bit(MGA_IN_FLUSH, &dev_priv->dispatch_status);
    		current->state = TASK_INTERRUPTIBLE;
    		add_wait_queue(&dev_priv->flush_queue, &entry);
    		for (;;) {
 		   	mga_dma_schedule(dev, 0);
-	   		if (atomic_read(&dev_priv->in_flush) == 0) 
+	   		if (!test_bit(MGA_IN_FLUSH, 
+				      &dev_priv->dispatch_status)) 
 				break;
 		   	atomic_inc(&dev->total_sleeps);
-		   	DRM_DEBUG("Schedule in flush_queue\n");
-	      		schedule_timeout(HZ*3);
+	      		schedule();
 	      		if (signal_pending(current)) {
 		   		ret = -EINTR; /* Can't restart */
+				clear_bit(MGA_IN_FLUSH, 
+					  &dev_priv->dispatch_status);
 		   		break;
 			}
 		}
    		current->state = TASK_RUNNING;
    		remove_wait_queue(&dev_priv->flush_queue, &entry);
 	}
-   	atomic_set(&dev_priv->in_flush, 0);
    	return ret;
 }
 
@@ -1018,6 +990,7 @@ void mga_reclaim_buffers(drm_device_t *dev, pid_t pid)
       	if(dev->dev_private == NULL) return;
 	if(dma->buflist == NULL) return;
 
+	DRM_DEBUG("%s\n", __FUNCTION__);
         mga_flush_queue(dev);
 
 	for (i = 0; i < dma->buf_count; i++) {
@@ -1043,6 +1016,7 @@ int mga_lock(struct inode *inode, struct file *filp, unsigned int cmd,
 	int		  ret	= 0;
 	drm_lock_t	  lock;
 
+	DRM_DEBUG("%s\n", __FUNCTION__);
 	copy_from_user_ret(&lock, (drm_lock_t *)arg, sizeof(lock), -EFAULT);
 
 	if (lock.context == DRM_KERNEL_CONTEXT) {
@@ -1081,7 +1055,6 @@ int mga_lock(struct inode *inode, struct file *filp, unsigned int cmd,
 				/* Contention */
 			atomic_inc(&dev->total_sleeps);
 			current->state = TASK_INTERRUPTIBLE;
-		   	DRM_DEBUG("Calling lock schedule\n");
 			schedule();
 			if (signal_pending(current)) {
 				ret = -ERESTARTSYS;
@@ -1111,11 +1084,8 @@ int mga_flush_ioctl(struct inode *inode, struct file *filp,
     	drm_device_t	  *dev	  = priv->dev;
 	drm_lock_t	  lock;
       	drm_mga_private_t *dev_priv = (drm_mga_private_t *)dev->dev_private;
-   	drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
-      	__volatile__ unsigned int *status = 
-     		(__volatile__ unsigned int *)dev_priv->status_page;
-	int		 i;
- 
+
+   	DRM_DEBUG("%s\n", __FUNCTION__);
 	copy_from_user_ret(&lock, (drm_lock_t *)arg, sizeof(lock), -EFAULT);
 
 	if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
@@ -1124,28 +1094,17 @@ int mga_flush_ioctl(struct inode *inode, struct file *filp,
 	}
 
    	if(lock.flags & _DRM_LOCK_FLUSH || lock.flags & _DRM_LOCK_FLUSH_ALL) {
-		mga_flush_queue(dev);
-
-		if((MGA_READ(MGAREG_STATUS) & 0x00030001) == 0x00020000 &&
-		   status[1] != dev_priv->last_sync_tag) 
-		{
-			DRM_DEBUG("Reseting hardware status\n");
-			MGA_WRITE(MGAREG_DWGSYNC, dev_priv->last_sync_tag);
-
-			while(MGA_READ(MGAREG_DWGSYNC) != 
-			      dev_priv->last_sync_tag) 
-			{
-				for(i = 0; i < 4096; i++) mga_delay();
-			}
-
-			status[1] = 
-				sarea_priv->last_dispatch = 
-				dev_priv->last_sync_tag;
-		} else {
-			sarea_priv->last_dispatch = status[1];
-		}
+		drm_mga_prim_buf_t *temp_buf =
+			dev_priv->prim_bufs[dev_priv->current_prim_idx];
+
+		if(temp_buf && temp_buf->num_dwords) {
+			set_bit(MGA_BUF_FORCE_FIRE, &temp_buf->buffer_status);
+			mga_advance_primary(dev);
+			mga_dma_schedule(dev, 1);
+ 		}
 	}
    	if(lock.flags & _DRM_LOCK_QUIESCENT) {
+		mga_flush_queue(dev);
 		mga_dma_quiescent(dev);
 	}
 
diff --git a/linux/mga_drm.h b/linux/mga_drm.h
index 12a858e7..7228b905 100644
--- a/linux/mga_drm.h
+++ b/linux/mga_drm.h
@@ -37,6 +37,7 @@
  */
 #ifndef _MGA_DEFINES_
 #define _MGA_DEFINES_
+
 #define MGA_F  0x1		/* fog */
 #define MGA_A  0x2		/* alpha */
 #define MGA_S  0x4		/* specular */
@@ -61,11 +62,11 @@
 
 #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
@@ -110,19 +111,19 @@
 #define MGA_UPLOAD_TEX0       0x2
 #define MGA_UPLOAD_TEX1       0x4
 #define MGA_UPLOAD_PIPE       0x8
-#define MGA_UPLOAD_TEX0IMAGE  0x10
-#define MGA_UPLOAD_TEX1IMAGE  0x20
+#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 */
 
-/* 64 buffers of 16k each, total 1 meg.
+/* 32 buffers of 64k each, total 2 meg.
  */
-#define MGA_DMA_BUF_ORDER     14
+#define MGA_DMA_BUF_ORDER     16
 #define MGA_DMA_BUF_SZ        (1<<MGA_DMA_BUF_ORDER)
-#define MGA_DMA_BUF_NR        63
+#define MGA_DMA_BUF_NR        31
 
 /* Keep these small for testing.
  */
@@ -159,19 +160,19 @@ typedef struct drm_mga_init {
    	int sarea_priv_offset;
    	int primary_size;
    	int warp_ucode_size;
-   	int frontOffset;
-   	int backOffset;
-   	int depthOffset;
-   	int textureOffset;
-   	int textureSize;
-        int agpTextureOffset;
-        int agpTextureSize;
-   	int cpp;
-   	int stride;
+   	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];
-	int mAccess;
+	unsigned int mAccess;
 } drm_mga_init_t;
 
 /* Warning: if you change the sarea structure, you must change the Xserver
@@ -180,7 +181,7 @@ typedef struct drm_mga_init {
 typedef struct _drm_mga_tex_region {
 	unsigned char next, prev;	
 	unsigned char in_use;	
-	int age;			
+	unsigned int age;			
 } drm_mga_tex_region_t;
 
 typedef struct _drm_mga_sarea {
@@ -219,9 +220,9 @@ typedef struct _drm_mga_sarea {
    
 	/* Counters for aging textures and for client-side throttling.
 	 */
-        int last_enqueue;	/* last time a buffer was enqueued */
-	int last_dispatch;	/* age of the most recently dispatched buffer */
-	int last_quiescent;     /*  */
+        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
@@ -237,9 +238,9 @@ typedef struct _drm_mga_sarea {
 /* Device specific ioctls:
  */
 typedef struct _drm_mga_clear {
-	int clear_color;
-	int clear_depth;
-	int flags;
+	unsigned int clear_color;
+	unsigned int clear_depth;
+	unsigned int flags;
 } drm_mga_clear_t;
 
 typedef struct _drm_mga_swap {
@@ -258,4 +259,11 @@ typedef struct _drm_mga_vertex {
 	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/linux/mga_drv.c b/linux/mga_drv.c
index 82dda64d..5fabe1f2 100644
--- a/linux/mga_drv.c
+++ b/linux/mga_drv.c
@@ -111,6 +111,7 @@ static drm_ioctl_desc_t	      mga_ioctls[] = {
    	[DRM_IOCTL_NR(DRM_IOCTL_MGA_ILOAD)]   = { mga_iload,       1, 0 },
    	[DRM_IOCTL_NR(DRM_IOCTL_MGA_VERTEX)]  = { mga_vertex,      1, 0 },
    	[DRM_IOCTL_NR(DRM_IOCTL_MGA_FLUSH)]   = { mga_flush_ioctl, 1, 0 },
+   	[DRM_IOCTL_NR(DRM_IOCTL_MGA_INDICES)] = { mga_indices,     1, 0 },
 };
 
 #define MGA_IOCTL_COUNT DRM_ARRAY_SIZE(mga_ioctls)
diff --git a/linux/mga_drv.h b/linux/mga_drv.h
index 801e707d..80d63c45 100644
--- a/linux/mga_drv.h
+++ b/linux/mga_drv.h
@@ -32,18 +32,21 @@
 #ifndef _MGA_DRV_H_
 #define _MGA_DRV_H_
 
+#define MGA_BUF_IN_USE         0
+#define MGA_BUF_SWAP_PENDING   1
+#define MGA_BUF_FORCE_FIRE     2
+#define MGA_BUF_NEEDS_OVERFLOW 3
+
 typedef struct {
+	u32 buffer_status;
    	unsigned int num_dwords;
    	unsigned int max_dwords;
    	u32 *current_dma_ptr;
    	u32 *head;
    	u32 phys_head;
+	unsigned int prim_age;
    	int sec_used;
    	int idx;
-   	int swap_pending;
-   	u32 in_use;
-   	atomic_t force_fire;
-   	atomic_t needs_overflow;
 } drm_mga_prim_buf_t;
 
 typedef struct _drm_mga_freelist {
@@ -53,31 +56,33 @@ typedef struct _drm_mga_freelist {
    	struct _drm_mga_freelist *prev;
 } drm_mga_freelist_t;
 
+#define MGA_IN_DISPATCH   0
+#define MGA_IN_FLUSH      1
+#define MGA_IN_WAIT       2
+#define MGA_IN_GETBUF	  3
+
 typedef struct _drm_mga_private {
+   	u32 dispatch_status;
+	unsigned int next_prim_age;
+	__volatile__ unsigned int last_prim_age;
    	int reserved_map_idx;
    	int buffer_map_idx;
    	drm_mga_sarea_t *sarea_priv;
    	int primary_size;
    	int warp_ucode_size;
    	int chipset;
-   	int frontOffset;
-   	int backOffset;
-   	int depthOffset;
-   	int textureOffset;
-   	int textureSize;
+   	unsigned int frontOffset;
+   	unsigned int backOffset;
+   	unsigned int depthOffset;
+   	unsigned int textureOffset;
+   	unsigned int textureSize;
    	int cpp;
-   	int stride;
+   	unsigned int stride;
    	int sgram;
 	int use_agp;
    	drm_mga_warp_index_t WarpIndex[MGA_MAX_G400_PIPES];
 	unsigned int WarpPipe;
-   	__volatile__ unsigned long softrap_age;
-   	u32 dispatch_lock;
-   	atomic_t in_flush;
-   	atomic_t in_wait;
    	atomic_t pending_bufs;
-   	unsigned int last_sync_tag;
-   	unsigned int sync_tag;
    	void *status_page;
    	unsigned long real_status_page;
    	u8 *ioremap;
@@ -86,12 +91,11 @@ typedef struct _drm_mga_private {
    	drm_mga_prim_buf_t *last_prim;
    	drm_mga_prim_buf_t *current_prim;
    	int current_prim_idx;
-   	struct pci_dev *device;
    	drm_mga_freelist_t *head;
    	drm_mga_freelist_t *tail;
    	wait_queue_head_t flush_queue;	/* Processes waiting until flush    */
       	wait_queue_head_t wait_queue;	/* Processes waiting until interrupt */
-
+	wait_queue_head_t buf_queue;    /* Processes waiting for a free buf */
 	/* Some validated register values:
 	 */	
 	u32 mAccess;
@@ -126,7 +130,7 @@ extern int mga_dma_init(struct inode *inode, struct file *filp,
 extern int mga_dma_cleanup(drm_device_t *dev);
 extern int mga_flush_ioctl(struct inode *inode, struct file *filp,
 			   unsigned int cmd, unsigned long arg);
-
+extern void mga_flush_write_combine(void);
 extern unsigned int mga_create_sync_tag(drm_device_t *dev);
 extern drm_buf_t *mga_freelist_get(drm_device_t *dev);
 extern int mga_freelist_put(drm_device_t *dev, drm_buf_t *buf);
@@ -156,6 +160,8 @@ extern int  mga_iload(struct inode *inode, struct file *filp,
 		      unsigned int cmd, unsigned long arg);
 extern int  mga_vertex(struct inode *inode, struct file *filp,
 		      unsigned int cmd, unsigned long arg);
+extern int  mga_indices(struct inode *inode, struct file *filp,
+			unsigned int cmd, unsigned long arg);
 				/* mga_context.c */
 extern int  mga_resctx(struct inode *inode, struct file *filp,
 		       unsigned int cmd, unsigned long arg);
@@ -186,6 +192,7 @@ typedef enum {
 typedef struct {
    	drm_mga_freelist_t *my_freelist;
 	int discard;
+	int dispatched;
 } drm_mga_buf_priv_t;
 
 #define DWGREG0 	0x1c00
@@ -206,15 +213,16 @@ typedef struct {
 
 #define PRIM_OVERFLOW(dev, dev_priv, length) do {			\
 	drm_mga_prim_buf_t *tmp_buf =					\
-		dev_priv->prim_bufs[dev_priv->current_prim_idx];	\
-	if( tmp_buf->max_dwords - tmp_buf->num_dwords < length ||	\
-	    tmp_buf->sec_used > MGA_DMA_BUF_NR/2) {			\
-		atomic_set(&tmp_buf->force_fire, 1);			\
-		mga_advance_primary(dev);				\
-		mga_dma_schedule(dev, 1);				\
-	} else if( atomic_read(&tmp_buf->needs_overflow)) {		\
-		mga_advance_primary(dev);				\
-		mga_dma_schedule(dev, 1);				\
+ 		dev_priv->prim_bufs[dev_priv->current_prim_idx];	\
+	if( test_bit(MGA_BUF_NEEDS_OVERFLOW,				\
+		  &tmp_buf->buffer_status)) {				\
+ 		mga_advance_primary(dev);				\
+ 		mga_dma_schedule(dev, 1);				\
+ 	} else if( tmp_buf->max_dwords - tmp_buf->num_dwords < length ||\
+ 	    tmp_buf->sec_used > MGA_DMA_BUF_NR/2) {			\
+		set_bit(MGA_BUF_FORCE_FIRE, &tmp_buf->buffer_status);	\
+ 		mga_advance_primary(dev);				\
+ 		mga_dma_schedule(dev, 1);				\
 	}								\
 } while(0)
 
@@ -266,6 +274,13 @@ drm_mga_prim_buf_t *tmp_buf = 					\
 	tmp_buf->sec_used++;						\
 } while (0)
 
+#define AGEBUF(dev_priv, buf_priv)	do {				\
+	drm_mga_prim_buf_t *tmp_buf =					\
+		dev_priv->prim_bufs[dev_priv->current_prim_idx];	\
+	buf_priv->my_freelist->age = tmp_buf->prim_age;			\
+} while (0)
+
+
 #define PRIMOUTREG(reg, val) do {					\
 	tempIndex[outcount]=ADRINDEX(reg);				\
 	dma_ptr[1+outcount] = val;					\
@@ -379,6 +394,9 @@ drm_mga_prim_buf_t *tmp_buf = 					\
 #define DC_pattern_disable			0x0
 #define DC_transc_disable			0x0
 
+#define SETADD_mode_vertlist                   	0x0 	
+
+
 #define MGA_CLEAR_CMD (DC_opcod_trap | DC_arzero_enable | 		\
 		       DC_sgnzero_enable | DC_shftzero_enable | 	\
 		       (0xC << DC_bop_SHIFT) | DC_clipdis_enable | 	\
diff --git a/linux/mga_state.c b/linux/mga_state.c
index a70f86d2..dc227769 100644
--- a/linux/mga_state.c
+++ b/linux/mga_state.c
@@ -41,14 +41,15 @@ static void mgaEmitClipRect( drm_mga_private_t *dev_priv,
    	drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
 	unsigned int *regs = sarea_priv->ContextState;
 	PRIMLOCALS;
+	DRM_DEBUG("%s\n", __FUNCTION__);
 
    	/* This takes 10 dwords */
 	PRIMGETPTR( dev_priv );
    
    	/* Force reset of dwgctl (eliminates clip disable) */
    	PRIMOUTREG( MGAREG_DMAPAD, 0 );
-	PRIMOUTREG( MGAREG_DWGSYNC, dev_priv->last_sync_tag - 1 );
-	PRIMOUTREG( MGAREG_DWGSYNC, dev_priv->last_sync_tag - 1 );
+	PRIMOUTREG( MGAREG_DWGSYNC, 0 );
+	PRIMOUTREG( MGAREG_DWGSYNC, 0 );
    	PRIMOUTREG( MGAREG_DWGCTL, regs[MGA_CTXREG_DWGCTL] );
 
    	PRIMOUTREG( MGAREG_DMAPAD, 0 );
@@ -64,6 +65,7 @@ static void mgaEmitContext(drm_mga_private_t *dev_priv )
       	drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
 	unsigned int *regs = sarea_priv->ContextState;
 	PRIMLOCALS;
+	DRM_DEBUG("%s\n", __FUNCTION__);
 	
    	/* This takes a max of 15 dwords */
 	PRIMGETPTR( dev_priv );
@@ -98,6 +100,7 @@ static void mgaG200EmitTex( drm_mga_private_t *dev_priv )
       	drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
 	unsigned int *regs = sarea_priv->TexState[0];
 	PRIMLOCALS;
+	DRM_DEBUG("%s\n", __FUNCTION__);
 
 	PRIMGETPTR( dev_priv );
    
@@ -132,6 +135,7 @@ static void mgaG400EmitTex0( drm_mga_private_t *dev_priv )
 	unsigned int *regs = sarea_priv->TexState[0];
 	int multitex = sarea_priv->WarpPipe & MGA_T2;
 	PRIMLOCALS;
+	DRM_DEBUG("%s\n", __FUNCTION__);
    
 	PRIMGETPTR( dev_priv );
    
@@ -179,6 +183,7 @@ static void mgaG400EmitTex1( drm_mga_private_t *dev_priv )
       	drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
 	unsigned int *regs = sarea_priv->TexState[1];
 	PRIMLOCALS;
+	DRM_DEBUG("%s\n", __FUNCTION__);
    
 	PRIMGETPTR(dev_priv);
 
@@ -217,6 +222,7 @@ static void mgaG400EmitPipe(drm_mga_private_t *dev_priv )
 	unsigned int pipe = sarea_priv->WarpPipe;
 	float fParam = 12800.0f;
 	PRIMLOCALS;
+	DRM_DEBUG("%s\n", __FUNCTION__);
    
 	PRIMGETPTR(dev_priv);
 
@@ -255,7 +261,7 @@ static void mgaG400EmitPipe(drm_mga_private_t *dev_priv )
 	PRIMOUTREG(MGAREG_DMAPAD, 0xffffffff);
 	PRIMOUTREG(MGAREG_DMAPAD, 0xffffffff);
 	PRIMOUTREG(MGAREG_DMAPAD, 0xffffffff);
-	PRIMOUTREG(MGAREG_WIADDR2, (__u32)(dev_priv->WarpIndex[pipe].phys_addr |
+	PRIMOUTREG(MGAREG_WIADDR2, (u32)(dev_priv->WarpIndex[pipe].phys_addr |
 					   WIA_wmode_start | WIA_wagp_agp));
 	PRIMADVANCE(dev_priv);
 }
@@ -265,6 +271,7 @@ static void mgaG200EmitPipe( drm_mga_private_t *dev_priv )
       	drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
 	unsigned int pipe = sarea_priv->WarpPipe;
 	PRIMLOCALS;
+	DRM_DEBUG("%s\n", __FUNCTION__);
 
 	PRIMGETPTR(dev_priv);
    
@@ -284,7 +291,7 @@ static void mgaG200EmitPipe( drm_mga_private_t *dev_priv )
 	PRIMOUTREG(MGAREG_DMAPAD, 0xffffffff);
 	PRIMOUTREG(MGAREG_DMAPAD, 0xffffffff);
 	PRIMOUTREG(MGAREG_DMAPAD, 0xffffffff);
-	PRIMOUTREG(MGAREG_WIADDR, (__u32)(dev_priv->WarpIndex[pipe].phys_addr | 
+	PRIMOUTREG(MGAREG_WIADDR, (u32)(dev_priv->WarpIndex[pipe].phys_addr | 
 					  WIA_wmode_start | WIA_wagp_agp));
 
 	PRIMADVANCE(dev_priv);
@@ -294,6 +301,7 @@ static void mgaEmitState( drm_mga_private_t *dev_priv )
 {
       	drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
 	unsigned int dirty = sarea_priv->dirty;
+	DRM_DEBUG("%s\n", __FUNCTION__);
 
 	if (dev_priv->chipset == MGA_CARD_TYPE_G400) {	   
 		int multitex = sarea_priv->WarpPipe & MGA_T2;
@@ -343,6 +351,8 @@ static int mgaVerifyContext(drm_mga_private_t *dev_priv )
 	drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
 	unsigned int *regs = sarea_priv->ContextState;
 
+   	DRM_DEBUG("%s\n", __FUNCTION__);
+
 	if (regs[MGA_CTXREG_DSTORG] != dev_priv->frontOffset &&
 	    regs[MGA_CTXREG_DSTORG] != dev_priv->backOffset) {
 		DRM_DEBUG("BAD DSTORG: %x (front %x, back %x)\n\n", 
@@ -362,6 +372,8 @@ static int mgaVerifyTex(drm_mga_private_t *dev_priv,
 {
 	drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
 
+   	DRM_DEBUG("%s\n", __FUNCTION__);
+
 	if ((sarea_priv->TexState[unit][MGA_TEXREG_ORG] & 0x3) == 0x1) {
 		DRM_DEBUG("BAD TEXREG_ORG: %x, unit %d\n", 
 		       sarea_priv->TexState[unit][MGA_TEXREG_ORG],
@@ -379,6 +391,8 @@ static int mgaVerifyState( drm_mga_private_t *dev_priv )
 	unsigned int dirty = sarea_priv->dirty;
 	int rv = 0;
 
+   	DRM_DEBUG("%s\n", __FUNCTION__);
+
    	if (sarea_priv->nbox > MGA_NR_SAREA_CLIPRECTS)
      		sarea_priv->nbox = MGA_NR_SAREA_CLIPRECTS;
 
@@ -409,6 +423,8 @@ static int mgaVerifyIload( drm_mga_private_t *dev_priv,
 			   unsigned long bus_address, 
 			   unsigned int dstOrg, int length )
 {
+   	DRM_DEBUG("%s\n", __FUNCTION__);
+
    	if(dstOrg < dev_priv->textureOffset ||
 	   dstOrg + length > 
 	   (dev_priv->textureOffset + dev_priv->textureSize)) {
@@ -432,14 +448,13 @@ static void mga_dma_dispatch_tex_blit( drm_device_t *dev,
    	int use_agp = PDEA_pagpxfer_enable | 0x00000001;
    	u16 y2;
     	PRIMLOCALS;
+	DRM_DEBUG("%s\n", __FUNCTION__);
     
         y2 = length / 64;
  
 	PRIM_OVERFLOW(dev, dev_priv, 30);
 	PRIMGETPTR( dev_priv );
 
-      	dev_priv->last_sync_tag = mga_create_sync_tag(dev);
-
 	PRIMOUTREG( MGAREG_DSTORG, destOrg);
 	PRIMOUTREG( MGAREG_MACCESS, 0x00000000);
    	DRM_DEBUG("srcorg : %lx\n", bus_address | use_agp);
@@ -459,7 +474,7 @@ static void mga_dma_dispatch_tex_blit( drm_device_t *dev,
 	PRIMOUTREG( MGAREG_SRCORG, 0);
 	PRIMOUTREG( MGAREG_PITCH, dev_priv->stride / dev_priv->cpp);
       	PRIMOUTREG( MGAREG_DMAPAD, 0);
-      	PRIMOUTREG( MGAREG_DWGSYNC, dev_priv->last_sync_tag);
+      	PRIMOUTREG( MGAREG_DMAPAD, 0);
     	PRIMADVANCE(dev_priv);
 }
 
@@ -475,33 +490,101 @@ static void mga_dma_dispatch_vertex(drm_device_t *dev,
 	int i = 0;
    	int primary_needed;
       	PRIMLOCALS;
+	DRM_DEBUG("%s\n", __FUNCTION__);
 
 	DRM_DEBUG("dispatch vertex %d addr 0x%lx, "
 		  "length 0x%x nbox %d dirty %x\n", 
 		  buf->idx, address, length, 
 		  sarea_priv->nbox, sarea_priv->dirty);
 
+	DRM_DEBUG("used : %d, total : %d\n", buf->used, buf->total);
+	if(sarea_priv->WarpPipe & MGA_T2) { 
+	   if ((buf->used/4) % 10)
+	     DRM_DEBUG("Multitex Buf is not aligned properly!!!\n");
+	} else { 
+	   if ((buf->used/4) % 8)
+	     DRM_DEBUG("Buf is not aligned properly!!!\n");
+	}
 
-   	dev_priv->last_sync_tag = mga_create_sync_tag(dev);
+	if (buf->used) {
+		/* WARNING: if you change any of the state functions verify
+		 * these numbers (Overestimating this doesn't hurt).  
+		 */
+		buf_priv->dispatched = 1;
+		primary_needed = (25+15+30+25+ 
+				  10 + 
+				  15 * MGA_NR_SAREA_CLIPRECTS);
+		PRIM_OVERFLOW(dev, dev_priv, primary_needed);
+   		mgaEmitState( dev_priv );
 
-   	if (buf_priv->discard) { 
-		buf_priv->my_freelist->age = dev_priv->last_sync_tag;
+		do {
+			if (i < sarea_priv->nbox) {
+				DRM_DEBUG("idx %d Emit box %d/%d:"
+					  "%d,%d - %d,%d\n", 
+					  buf->idx,
+					  i, sarea_priv->nbox,
+					  sarea_priv->boxes[i].x1, 
+					  sarea_priv->boxes[i].y1,
+					  sarea_priv->boxes[i].x2, 
+					  sarea_priv->boxes[i].y2);
+				
+				mgaEmitClipRect( dev_priv, 
+						 &sarea_priv->boxes[i] );
+			}
+			
+			PRIMGETPTR(dev_priv);
+			PRIMOUTREG( MGAREG_DMAPAD, 0);
+			PRIMOUTREG( MGAREG_DMAPAD, 0);
+			PRIMOUTREG( MGAREG_SECADDRESS, 
+				    ((u32)address) | TT_VERTEX);
+			PRIMOUTREG( MGAREG_SECEND, 
+				    (((u32)(address + length)) | 
+				     use_agp));
+			PRIMADVANCE( dev_priv );	       
+		}  while (++i < sarea_priv->nbox);
+	}
+
+   	if (buf_priv->discard) {
+		if(buf_priv->dispatched == 1) AGEBUF(dev_priv, buf_priv);
+		buf_priv->dispatched = 0;
 	   	mga_freelist_put(dev, buf);
 	}
 
 
-	/* WARNING: if you change any of the state functions verify
-	 * these numbers (Overestimating this doesn't hurt).  
-	 */
-	primary_needed = (25+15+30+25+ 
-			  10 + 
-			  15 * MGA_NR_SAREA_CLIPRECTS);
+}
 
 
-   	PRIM_OVERFLOW(dev, dev_priv, primary_needed);
-   	mgaEmitState( dev_priv );
+static void mga_dma_dispatch_indices(drm_device_t *dev, 
+				     drm_buf_t *buf,
+				     unsigned int start,
+				     unsigned int end)
+{
+   	drm_mga_private_t *dev_priv = dev->dev_private;
+	drm_mga_buf_priv_t *buf_priv = buf->dev_private;
+   	drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
+	unsigned int address = (unsigned int)buf->bus_address;
+	int use_agp = PDEA_pagpxfer_enable;
+	int i = 0;
+   	int primary_needed;
+      	PRIMLOCALS;
+	DRM_DEBUG("%s\n", __FUNCTION__);
+
+	DRM_DEBUG("dispatch indices %d addr 0x%x, "
+		  "start 0x%x end 0x%x nbox %d dirty %x\n", 
+		  buf->idx, address, start, end, 
+		  sarea_priv->nbox, sarea_priv->dirty);
+
+	if (start != end) {
+		/* WARNING: if you change any of the state functions verify
+		 * these numbers (Overestimating this doesn't hurt).  
+		 */
+		buf_priv->dispatched = 1;
+		primary_needed = (25+15+30+25+ 
+				  10 + 
+				  15 * MGA_NR_SAREA_CLIPRECTS);
+   		PRIM_OVERFLOW(dev, dev_priv, primary_needed);
+   		mgaEmitState( dev_priv );
 
-	if (buf->used) {
 		do {
 			if (i < sarea_priv->nbox) {
 				DRM_DEBUG("idx %d Emit box %d/%d:"
@@ -520,21 +603,18 @@ static void mga_dma_dispatch_vertex(drm_device_t *dev,
 			PRIMGETPTR(dev_priv);
 			PRIMOUTREG( MGAREG_DMAPAD, 0);
 			PRIMOUTREG( MGAREG_DMAPAD, 0);
-			PRIMOUTREG( MGAREG_SECADDRESS, 
-				    ((__u32)address) | TT_VERTEX);
-			PRIMOUTREG( MGAREG_SECEND, 
-				    (((__u32)(address + length)) | 
-				     use_agp));
+			PRIMOUTREG( MGAREG_SETUPADDRESS, 
+				    ((address + start) | SETADD_mode_vertlist));
+			PRIMOUTREG( MGAREG_SETUPEND, 
+				    ((address + end) | use_agp));
 			PRIMADVANCE( dev_priv );	       
 		}  while (++i < sarea_priv->nbox);
 	}
-
-	PRIMGETPTR( dev_priv );
-   	PRIMOUTREG(MGAREG_DMAPAD, 0);
-   	PRIMOUTREG(MGAREG_DMAPAD, 0);
-   	PRIMOUTREG(MGAREG_DMAPAD, 0);
-   	PRIMOUTREG(MGAREG_DWGSYNC, dev_priv->last_sync_tag);   
-	PRIMADVANCE( dev_priv );
+   	if (buf_priv->discard) {
+		if(buf_priv->dispatched == 1) AGEBUF(dev_priv, buf_priv);
+		buf_priv->dispatched = 0;
+	   	mga_freelist_put(dev, buf);
+	}
 }
 
 
@@ -551,6 +631,7 @@ static void mga_dma_dispatch_clear( drm_device_t *dev, int flags,
 	int i;
    	int primary_needed;
    	PRIMLOCALS;
+	DRM_DEBUG("%s\n", __FUNCTION__);
 
 	if ( dev_priv->sgram ) 
 		cmd = MGA_CLEAR_CMD | DC_atype_blk;
@@ -561,7 +642,6 @@ static void mga_dma_dispatch_clear( drm_device_t *dev, int flags,
    	if(primary_needed == 0) primary_needed = 70;
 	PRIM_OVERFLOW(dev, dev_priv, primary_needed);
 	PRIMGETPTR( dev_priv );
-      	dev_priv->last_sync_tag = mga_create_sync_tag(dev);
    
 	for (i = 0 ; i < nbox ; i++) {
 		unsigned int height = pbox[i].y2 - pbox[i].y1;
@@ -615,11 +695,6 @@ static void mga_dma_dispatch_clear( drm_device_t *dev, int flags,
 	PRIMOUTREG( MGAREG_DMAPAD, 0);   
       	PRIMOUTREG( MGAREG_DMAPAD, 0);
       	PRIMOUTREG( MGAREG_DWGCTL, regs[MGA_CTXREG_DWGCTL] );
-
-	PRIMOUTREG( MGAREG_DMAPAD, 0);
-	PRIMOUTREG( MGAREG_DMAPAD, 0);
-      	PRIMOUTREG( MGAREG_DMAPAD, 0);
-   	PRIMOUTREG( MGAREG_DWGSYNC, dev_priv->last_sync_tag);
 	PRIMADVANCE(dev_priv);
 }
 
@@ -633,14 +708,13 @@ static void mga_dma_dispatch_swap( drm_device_t *dev )
 	int i;
    	int primary_needed;
    	PRIMLOCALS;
+	DRM_DEBUG("%s\n", __FUNCTION__);
 
    	primary_needed = nbox * 5;
    	primary_needed += 60;
 	PRIM_OVERFLOW(dev, dev_priv, primary_needed);
 	PRIMGETPTR( dev_priv );
    
-      	dev_priv->last_sync_tag = mga_create_sync_tag(dev);
-
 	PRIMOUTREG(MGAREG_DSTORG, dev_priv->frontOffset);
 	PRIMOUTREG(MGAREG_MACCESS, dev_priv->mAccess);
 	PRIMOUTREG(MGAREG_SRCORG, dev_priv->backOffset);
@@ -668,13 +742,9 @@ static void mga_dma_dispatch_swap( drm_device_t *dev )
    	/* Force reset of DWGCTL */
    	PRIMOUTREG( MGAREG_DMAPAD, 0);
       	PRIMOUTREG( MGAREG_DMAPAD, 0);
-   	PRIMOUTREG( MGAREG_DMAPAD, 0);
+   	PRIMOUTREG( MGAREG_SRCORG, 0);
       	PRIMOUTREG( MGAREG_DWGCTL, regs[MGA_CTXREG_DWGCTL] );
 
-	PRIMOUTREG( MGAREG_SRCORG, 0);
-	PRIMOUTREG( MGAREG_DMAPAD, 0);
-      	PRIMOUTREG( MGAREG_DMAPAD, 0);
-      	PRIMOUTREG( MGAREG_DWGSYNC, dev_priv->last_sync_tag);
    	PRIMADVANCE(dev_priv);
 }
 
@@ -685,12 +755,11 @@ int mga_clear_bufs(struct inode *inode, struct file *filp,
 	drm_device_t *dev = priv->dev;
    	drm_mga_private_t *dev_priv = (drm_mga_private_t *)dev->dev_private;
    	drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
-      	__volatile__ unsigned int *status = 
-     		(__volatile__ unsigned int *)dev_priv->status_page;
 	drm_mga_clear_t clear;
 
    	copy_from_user_ret(&clear, (drm_mga_clear_t *)arg, sizeof(clear), 
 			   -EFAULT);
+	DRM_DEBUG("%s\n", __FUNCTION__);
 
 	if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
 		DRM_ERROR("mga_clear_bufs called without lock held\n");
@@ -707,8 +776,8 @@ int mga_clear_bufs(struct inode *inode, struct file *filp,
 			        clear.clear_color, 
 			        clear.clear_depth );
       	PRIMUPDATE(dev_priv);
+	mga_flush_write_combine();
 	mga_dma_schedule(dev, 1);
-   	sarea_priv->last_dispatch = status[1];
    	return 0;
 }
 
@@ -719,8 +788,7 @@ int mga_swap_bufs(struct inode *inode, struct file *filp,
 	drm_device_t *dev = priv->dev;
    	drm_mga_private_t *dev_priv = (drm_mga_private_t *)dev->dev_private;
       	drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
-      	__volatile__ unsigned int *status = 
-     		(__volatile__ unsigned int *)dev_priv->status_page;
+	DRM_DEBUG("%s\n", __FUNCTION__);
    
 	if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
 		DRM_ERROR("mga_swap_bufs called without lock held\n");
@@ -735,10 +803,9 @@ int mga_swap_bufs(struct inode *inode, struct file *filp,
 	dev_priv->sarea_priv->dirty |= MGA_UPLOAD_CTX;
 	mga_dma_dispatch_swap( dev );
       	PRIMUPDATE(dev_priv);
-   	set_bit(0, &dev_priv->current_prim->swap_pending);
-   	dev_priv->current_prim->swap_pending = 1;
+   	set_bit(MGA_BUF_SWAP_PENDING, &dev_priv->current_prim->buffer_status);
+	mga_flush_write_combine();
 	mga_dma_schedule(dev, 1);
-      	sarea_priv->last_dispatch = status[1];
    	return 0;
 }
 
@@ -750,12 +817,11 @@ int mga_iload(struct inode *inode, struct file *filp,
    	drm_device_dma_t  *dma	    = dev->dma;
        	drm_mga_private_t *dev_priv = (drm_mga_private_t *)dev->dev_private;
        	drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
-       	__volatile__ unsigned int *status = 
-      		(__volatile__ unsigned int *)dev_priv->status_page;
    	drm_buf_t *buf;
    	drm_mga_buf_priv_t *buf_priv;
  	drm_mga_iload_t iload;
 	unsigned long bus_address;
+	DRM_DEBUG("%s\n", __FUNCTION__);
    
    	DRM_DEBUG("Starting Iload\n");
  	copy_from_user_ret(&iload, (drm_mga_iload_t *)arg, sizeof(iload),
@@ -784,11 +850,11 @@ int mga_iload(struct inode *inode, struct file *filp,
 
    	mga_dma_dispatch_tex_blit(dev, bus_address, iload.length, 
 				  iload.destOrg);
-   	buf_priv->my_freelist->age = dev_priv->last_sync_tag;
+	AGEBUF(dev_priv, buf_priv);
 	buf_priv->discard = 1;
     	mga_freelist_put(dev, buf);
+	mga_flush_write_combine();
 	mga_dma_schedule(dev, 1);
-    	sarea_priv->last_dispatch = status[1];
  	return 0; 
 }
 
@@ -798,13 +864,11 @@ int mga_vertex(struct inode *inode, struct file *filp,
 	drm_file_t *priv = filp->private_data;
 	drm_device_t *dev = priv->dev;
       	drm_mga_private_t *dev_priv = (drm_mga_private_t *)dev->dev_private;
-   	drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
-      	__volatile__ unsigned int *status = 
-     		(__volatile__ unsigned int *)dev_priv->status_page;
    	drm_device_dma_t *dma = dev->dma;
 	drm_buf_t *buf;
       	drm_mga_buf_priv_t *buf_priv;
 	drm_mga_vertex_t vertex;
+	DRM_DEBUG("%s\n", __FUNCTION__);
 
 	copy_from_user_ret(&vertex, (drm_mga_vertex_t *)arg, sizeof(vertex),
 			   -EFAULT);
@@ -823,25 +887,75 @@ int mga_vertex(struct inode *inode, struct file *filp,
 	buf_priv->discard = vertex.discard;
    
 	if (!mgaVerifyState(dev_priv)) {
-	   if (vertex.discard) { 
-	     	buf_priv->my_freelist->age = dev_priv->last_sync_tag;
-	      	mga_freelist_put(dev, buf);
+	   if (vertex.discard) {
+		if(buf_priv->dispatched == 1) AGEBUF(dev_priv, buf_priv);
+		buf_priv->dispatched = 0;
+	   	mga_freelist_put(dev, buf);
 	   }
+	   DRM_DEBUG("bad state\n");
 	   return -EINVAL;
 	}
 
 	mga_dma_dispatch_vertex(dev, buf);
 
    	PRIMUPDATE(dev_priv);
+	mga_flush_write_combine();
 	mga_dma_schedule(dev, 1);
-      	sarea_priv->last_dispatch = status[1];
    	return 0;
 }
 
+
+int mga_indices(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_mga_private_t *dev_priv = (drm_mga_private_t *)dev->dev_private;
+   	drm_device_dma_t *dma = dev->dma;
+	drm_buf_t *buf;
+      	drm_mga_buf_priv_t *buf_priv;
+	drm_mga_indices_t indices;
+	DRM_DEBUG("%s\n", __FUNCTION__);
+
+	copy_from_user_ret(&indices, (drm_mga_indices_t *)arg, sizeof(indices),
+			   -EFAULT);
+   
+	if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
+		DRM_ERROR("mga_indices called without lock held\n");
+		return -EINVAL;
+	}
+
+	DRM_DEBUG("mga_indices\n");
+
+	buf = dma->buflist[ indices.idx ];
+   	buf_priv = buf->dev_private;
+
+	buf_priv->discard = indices.discard;
+   
+	if (!mgaVerifyState(dev_priv)) {
+	   if (indices.discard) {
+		if(buf_priv->dispatched == 1) AGEBUF(dev_priv, buf_priv);
+		buf_priv->dispatched = 0;
+	   	mga_freelist_put(dev, buf);
+	   }
+	   return -EINVAL;
+	}
+
+	mga_dma_dispatch_indices(dev, buf, indices.start, indices.end);
+
+   	PRIMUPDATE(dev_priv);
+	mga_flush_write_combine();
+	mga_dma_schedule(dev, 1);
+   	return 0;
+}
+
+
+
 static int mga_dma_get_buffers(drm_device_t *dev, drm_dma_t *d)
 {
 	int i;
 	drm_buf_t *buf;
+	DRM_DEBUG("%s\n", __FUNCTION__);
 
 	for (i = d->granted_count; i < d->request_count; i++) {
 		buf = mga_freelist_get(dev);
@@ -866,12 +980,9 @@ int mga_dma(struct inode *inode, struct file *filp, unsigned int cmd,
 	drm_file_t	  *priv	    = filp->private_data;
 	drm_device_t	  *dev	    = priv->dev;
 	drm_device_dma_t  *dma	    = dev->dma;
-   	drm_mga_private_t *dev_priv = (drm_mga_private_t *)dev->dev_private;
-   	drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
-      	__volatile__ unsigned int *status = 
-     		(__volatile__ unsigned int *)dev_priv->status_page;
 	int		  retcode   = 0;
 	drm_dma_t	  d;
+	DRM_DEBUG("%s\n", __FUNCTION__);
 
    	copy_from_user_ret(&d, (drm_dma_t *)arg, sizeof(d), -EFAULT);
 	DRM_DEBUG("%d %d: %d send, %d req\n",
@@ -907,6 +1018,5 @@ int mga_dma(struct inode *inode, struct file *filp, unsigned int cmd,
 	DRM_DEBUG("%d returning, granted = %d\n",
 		  current->pid, d.granted_count);
 	copy_to_user_ret((drm_dma_t *)arg, &d, sizeof(d), -EFAULT);
-      	sarea_priv->last_dispatch = status[1];
 	return retcode;
 }