massive reduction of unneeded files

1 files changed, 0 insertions, 1529 deletions

diff --git a/nx-X11/extras/drm/linux/drm_bufs.h b/nx-X11/extras/drm/linux/drm_bufs.h
deleted file mode 100644
index 03900d1b1..000000000
--- a/nx-X11/extras/drm/linux/drm_bufs.h
+++ /dev/null
@@ -1,1529 +0,0 @@
-/**
- * \file drm_bufs.h 
- * Generic buffer template
- * 
- * \author Rickard E. (Rik) Faith <faith@valinux.com>
- * \author Gareth Hughes <gareth@valinux.com>
- */
-
-/*
- * Created: Thu Nov 23 03:10:50 2000 by gareth@valinux.com
- *
- * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas.
- * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#include <linux/vmalloc.h>
-#include "drmP.h"
-
-/**
- * Compute size order.  Returns the exponent of the smaller power of two which
- * is greater or equal to given number.
- * 
- * \param size size.
- * \return order.
- *
- * \todo Can be made faster.
- */
-int DRM(order)( unsigned long size )
-{
-	int order;
-	unsigned long tmp;
-
-	for (order = 0, tmp = size >> 1; tmp; tmp >>= 1, order++)
-		;
-
-	if (size & (size - 1))
-		++order;
-
-	return order;
-}
-
-static int permanent_maps = 0; 
- /**
- * Adjusts the memory offset to its absolute value according to the mapping
- * type.  Adds the map to the map list drm_device::maplist. Adds MTRR's where
- * applicable and if supported by the kernel.
- */
-int DRM(initmap)( drm_device_t *dev, unsigned int offset, unsigned int size, int type, int flags )
-{
-	drm_map_t *map;
-	drm_map_list_t *list;
-
-	DRM_DEBUG("\n");
-
-	if ( (offset & (~PAGE_MASK)) || (size & (~PAGE_MASK)) )
-		return -EINVAL;
-#if !defined(__sparc__) && !defined(__alpha__)
-	if ( offset + size < offset || offset < virt_to_phys(high_memory) )
-		return -EINVAL;
-#endif
-	if ( !(list = DRM(alloc)( sizeof(*list), DRM_MEM_MAPS )))
-		return -ENOMEM;
-	memset(list, 0, sizeof(*list));
-		
-	if ( !(map = DRM(alloc)( sizeof(*map), DRM_MEM_MAPS ))) {
-		DRM(free)(list, sizeof(*list), DRM_MEM_MAPS);
-		return -ENOMEM;
-	}
-
-	*map = (drm_map_t){
-		.offset = offset,
-		.size = size,
-		.type = type,
-		.flags = flags,
-		.mtrr = -1,
-		.handle = 0,
-	};
-	list->map = map;
-
-	DRM_DEBUG( "initmap offset = 0x%08lx, size = 0x%08lx, type = %d\n",
-		   map->offset, map->size, map->type );
-        
-#ifdef __alpha__
-	map->offset += dev->hose->mem_space->start;
-#endif
-	if (drm_core_has_MTRR(dev)) {
-		if ( map->type == _DRM_FRAME_BUFFER ||
-		     (map->flags & _DRM_WRITE_COMBINING) ) {
-			map->mtrr = mtrr_add( map->offset, map->size,
-					      MTRR_TYPE_WRCOMB, 1 );
-		}
-	}
-
-	if (map->type == _DRM_REGISTERS)
-		map->handle = DRM(ioremap)( map->offset, map->size, dev );
-
-	down(&dev->struct_sem);
-	list_add(&list->head, &dev->maplist->head);
-	up(&dev->struct_sem);
-	
-	permanent_maps = 1;
-	DRM_DEBUG("finished\n");
-
-	return 0;
-}
-
-/**
- * Ioctl to specify a range of memory that is available for mapping by a non-root process.
- *
- * \param inode device inode.
- * \param filp file pointer.
- * \param cmd command.
- * \param arg pointer to a drm_map structure.
- * \return zero on success or a negative value on error.
- *
- * Adjusts the memory offset to its absolute value according to the mapping
- * type.  Adds the map to the map list drm_device::maplist. Adds MTRR's where
- * applicable and if supported by the kernel.
- */
-int DRM(addmap)( 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_map_t *map;
-	drm_map_t __user *argp = (void __user *)arg;
-	drm_map_list_t *list;
-
-	if ( !(filp->f_mode & 3) ) return -EACCES; /* Require read/write */
-
-	map = DRM(alloc)( sizeof(*map), DRM_MEM_MAPS );
-	if ( !map )
-		return -ENOMEM;
-
-	if ( copy_from_user( map, argp, sizeof(*map) ) ) {
-		DRM(free)( map, sizeof(*map), DRM_MEM_MAPS );
-		return -EFAULT;
-	}
-
-	/* Only allow shared memory to be removable since we only keep enough
-	 * book keeping information about shared memory to allow for removal
-	 * when processes fork.
-	 */
-	if ( (map->flags & _DRM_REMOVABLE) && map->type != _DRM_SHM ) {
-		DRM(free)( map, sizeof(*map), DRM_MEM_MAPS );
-		return -EINVAL;
-	}
-	DRM_DEBUG( "offset = 0x%08lx, size = 0x%08lx, type = %d\n",
-		   map->offset, map->size, map->type );
-	if ( (map->offset & (~PAGE_MASK)) || (map->size & (~PAGE_MASK)) ) {
-		DRM(free)( map, sizeof(*map), DRM_MEM_MAPS );
-		return -EINVAL;
-	}
-	map->mtrr   = -1;
-	map->handle = NULL;
-
-	switch ( map->type ) {
-	case _DRM_REGISTERS:
-	case _DRM_FRAME_BUFFER: {
-		/* after all the drivers switch to permanent mapping this should just return an error */
-        	struct list_head *_list;
-
-		/* If permanent maps are implemented, maps must match */
-		if (permanent_maps) {
-			DRM_DEBUG( "Looking for: offset = 0x%08lx, size = 0x%08lx, type = %d\n",
-				map->offset, map->size, map->type );
-			list_for_each( _list, &dev->maplist->head ) {
-				drm_map_list_t *_entry = list_entry( _list, drm_map_list_t, head );
-				DRM_DEBUG( "Checking: offset = 0x%08lx, size = 0x%08lx, type = %d\n",
-					_entry->map->offset, _entry->map->size, _entry->map->type );
-				if ( _entry->map && map->type == _entry->map->type  &&
-						map->offset == _entry->map->offset ) {
-					_entry->map->size = map->size;
-					DRM(free)( map, sizeof(*map), DRM_MEM_MAPS );
-					map = _entry->map;
-					DRM_DEBUG( "Found existing: offset = 0x%08lx, size = 0x%08lx, type = %d\n",
-						map->offset, map->size, map->type );
-					goto found_it;
-				}
-			}
-			/* addmap didn't match an existing permanent map, that's an error */
-			return -EINVAL;
-		}
-#if !defined(__sparc__) && !defined(__alpha__) && !defined(__ia64__)
-		if ( map->offset + map->size < map->offset ||
-		     map->offset < virt_to_phys(high_memory) ) {
-			DRM(free)( map, sizeof(*map), DRM_MEM_MAPS );
-			return -EINVAL;
-		}
-#endif
-#ifdef __alpha__
-		map->offset += dev->hose->mem_space->start;
-#endif
-		if (drm_core_has_MTRR(dev)) {
-			if ( map->type == _DRM_FRAME_BUFFER ||
-			     (map->flags & _DRM_WRITE_COMBINING) ) {
-				map->mtrr = mtrr_add( map->offset, map->size,
-						      MTRR_TYPE_WRCOMB, 1 );
-			}
-		}
-		if (map->type == _DRM_REGISTERS)
-			map->handle = DRM(ioremap)( map->offset, map->size,
-						    dev );
-		break;
-	}
-	case _DRM_SHM:
-		map->handle = vmalloc_32(map->size);
-		DRM_DEBUG( "%lu %d %p\n",
-			   map->size, DRM(order)( map->size ), map->handle );
-		if ( !map->handle ) {
-			DRM(free)( map, sizeof(*map), DRM_MEM_MAPS );
-			return -ENOMEM;
-		}
-		map->offset = (unsigned long)map->handle;
-		if ( map->flags & _DRM_CONTAINS_LOCK ) {
-			/* Prevent a 2nd X Server from creating a 2nd lock */
-			if (dev->lock.hw_lock != NULL) {
-				vfree( map->handle );
-				DRM(free)( map, sizeof(*map), DRM_MEM_MAPS );
-				return -EBUSY;
-			}
-			dev->sigdata.lock =
-			dev->lock.hw_lock = map->handle; /* Pointer to lock */
-		}
-		break;
-	case _DRM_AGP:
-		if (drm_core_has_AGP(dev)) {
-#ifdef __alpha__
-			map->offset += dev->hose->mem_space->start;
-#endif
-			map->offset += dev->agp->base;
-			map->mtrr   = dev->agp->agp_mtrr; /* for getmap */
-		}
-		break;
-	case _DRM_SCATTER_GATHER:
-		if (!dev->sg) {
-			DRM(free)(map, sizeof(*map), DRM_MEM_MAPS);
-			return -EINVAL;
-		}
-		map->offset += dev->sg->handle;
-		break;
-
-	default:
-		DRM(free)( map, sizeof(*map), DRM_MEM_MAPS );
-		return -EINVAL;
-	}
-
-	list = DRM(alloc)(sizeof(*list), DRM_MEM_MAPS);
-	if(!list) {
-		DRM(free)(map, sizeof(*map), DRM_MEM_MAPS);
-		return -EINVAL;
-	}
-	memset(list, 0, sizeof(*list));
-	list->map = map;
-
-	down(&dev->struct_sem);
-	list_add(&list->head, &dev->maplist->head);
- 	up(&dev->struct_sem);
-found_it:
-	if ( copy_to_user( argp, map, sizeof(*map) ) )
-		return -EFAULT;
-	if ( map->type != _DRM_SHM ) {
-		if ( copy_to_user( &argp->handle,
-				   &map->offset,
-				   sizeof(map->offset) ) )
-			return -EFAULT;
-	}
-	return 0;
-}
-
-
-/**
- * Remove a map private from list and deallocate resources if the mapping
- * isn't in use.
- *
- * \param inode device inode.
- * \param filp file pointer.
- * \param cmd command.
- * \param arg pointer to a drm_map_t structure.
- * \return zero on success or a negative value on error.
- *
- * Searches the map on drm_device::maplist, removes it from the list, see if
- * its being used, and free any associate resource (such as MTRR's) if it's not
- * being on use.
- *
- * \sa addmap().
- */
-int DRM(rmmap)(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;
-	struct list_head *list;
-	drm_map_list_t *r_list = NULL;
-	drm_vma_entry_t *pt, *prev;
-	drm_map_t *map;
-	drm_map_t request;
-	int found_maps = 0;
-
-	if (copy_from_user(&request, (drm_map_t __user *)arg,
-			   sizeof(request))) {
-		return -EFAULT;
-	}
-	
-	down(&dev->struct_sem);
-	list = &dev->maplist->head;
-	list_for_each(list, &dev->maplist->head) {
-		r_list = list_entry(list, drm_map_list_t, head);
-
-		if(r_list->map &&
-		   r_list->map->handle == request.handle &&
-		   r_list->map->flags & _DRM_REMOVABLE) break;
-	}
-
-	/* List has wrapped around to the head pointer, or its empty we didn't
-	 * find anything.
-	 */
-	if(list == (&dev->maplist->head)) {
-		up(&dev->struct_sem);
-		return -EINVAL;
-	}
-	map = r_list->map;
-	
-	/* Register and framebuffer maps are permanent */
-	if ((map->type == _DRM_REGISTERS) || (map->type == _DRM_FRAME_BUFFER)) {
-		up(&dev->struct_sem);
-		return 0;
-	}
-	list_del(list);
-	DRM(free)(list, sizeof(*list), DRM_MEM_MAPS);
-
-	for (pt = dev->vmalist, prev = NULL; pt; prev = pt, pt = pt->next) {
-		if (pt->vma->vm_private_data == map) found_maps++;
-	}
-
-	if(!found_maps) {
-		switch (map->type) {
-		case _DRM_REGISTERS:
-		case _DRM_FRAME_BUFFER:
-			break;  /* Can't get here, make compiler happy */
-		case _DRM_SHM:
-			vfree(map->handle);
-			break;
-		case _DRM_AGP:
-		case _DRM_SCATTER_GATHER:
-			break;
-		}
-		DRM(free)(map, sizeof(*map), DRM_MEM_MAPS);
-	}
-	up(&dev->struct_sem);
-	return 0;
-}
-
-/**
- * Cleanup after an error on one of the addbufs() functions.
- *
- * \param dev DRM device.
- * \param entry buffer entry where the error occurred.
- *
- * Frees any pages and buffers associated with the given entry.
- */
-static void DRM(cleanup_buf_error)(drm_device_t *dev, drm_buf_entry_t *entry)
-{
-	int i;
-
-	if (entry->seg_count) {
-		for (i = 0; i < entry->seg_count; i++) {
-			if (entry->seglist[i]) {
-				DRM(free_pages)(entry->seglist[i],
-					        entry->page_order,
-					        DRM_MEM_DMA);
-			}
-		}
-		DRM(free)(entry->seglist,
-			  entry->seg_count *
-			  sizeof(*entry->seglist),
-			  DRM_MEM_SEGS);
-
-		entry->seg_count = 0;
-	}
-
-   	if (entry->buf_count) {
-	   	for (i = 0; i < entry->buf_count; i++) {
-			if (entry->buflist[i].dev_private) {
-				DRM(free)(entry->buflist[i].dev_private,
-					  entry->buflist[i].dev_priv_size,
-					  DRM_MEM_BUFS);
-			}
-		}
-		DRM(free)(entry->buflist,
-			  entry->buf_count *
-			  sizeof(*entry->buflist),
-			  DRM_MEM_BUFS);
-
-		entry->buf_count = 0;
-	}
-}
-
-#if __OS_HAS_AGP
-/**
- * Add AGP buffers for DMA transfers (ioctl).
- *
- * \param inode device inode.
- * \param filp file pointer.
- * \param cmd command.
- * \param arg pointer to a drm_buf_desc_t request.
- * \return zero on success or a negative number on failure.
- * 
- * After some sanity checks creates a drm_buf structure for each buffer and
- * reallocates the buffer list of the same size order to accommodate the new
- * buffers.
- */
-int DRM(addbufs_agp)( 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;
-	drm_buf_desc_t request;
-	drm_buf_entry_t *entry;
-	drm_buf_t *buf;
-	unsigned long offset;
-	unsigned long agp_offset;
-	int count;
-	int order;
-	int size;
-	int alignment;
-	int page_order;
-	int total;
-	int byte_count;
-	int i;
-	drm_buf_t **temp_buflist;
-	drm_buf_desc_t __user *argp = (void __user *)arg;
-
-	if ( !dma ) return -EINVAL;
-
-	if ( copy_from_user( &request, argp,
-			     sizeof(request) ) )
-		return -EFAULT;
-
-	count = request.count;
-	order = DRM(order)( request.size );
-	size = 1 << order;
-
-	alignment  = (request.flags & _DRM_PAGE_ALIGN)
-		? PAGE_ALIGN(size) : size;
-	page_order = order - PAGE_SHIFT > 0 ? order - PAGE_SHIFT : 0;
-	total = PAGE_SIZE << page_order;
-
-	byte_count = 0;
-	agp_offset = dev->agp->base + request.agp_start;
-
-	DRM_DEBUG( "count:      %d\n",  count );
-	DRM_DEBUG( "order:      %d\n",  order );
-	DRM_DEBUG( "size:       %d\n",  size );
-	DRM_DEBUG( "agp_offset: %lu\n", agp_offset );
-	DRM_DEBUG( "alignment:  %d\n",  alignment );
-	DRM_DEBUG( "page_order: %d\n",  page_order );
-	DRM_DEBUG( "total:      %d\n",  total );
-
-	if ( order < DRM_MIN_ORDER || order > DRM_MAX_ORDER ) return -EINVAL;
-	if ( dev->queue_count ) return -EBUSY; /* Not while in use */
-
-	spin_lock( &dev->count_lock );
-	if ( dev->buf_use ) {
-		spin_unlock( &dev->count_lock );
-		return -EBUSY;
-	}
-	atomic_inc( &dev->buf_alloc );
-	spin_unlock( &dev->count_lock );
-
-	down( &dev->struct_sem );
-	entry = &dma->bufs[order];
-	if ( entry->buf_count ) {
-		up( &dev->struct_sem );
-		atomic_dec( &dev->buf_alloc );
-		return -ENOMEM; /* May only call once for each order */
-	}
-
-	if (count < 0 || count > 4096) {
-		up( &dev->struct_sem );
-		atomic_dec( &dev->buf_alloc );
-		return -EINVAL;
-	}
-
-	entry->buflist = DRM(alloc)( count * sizeof(*entry->buflist),
-				    DRM_MEM_BUFS );
-	if ( !entry->buflist ) {
-		up( &dev->struct_sem );
-		atomic_dec( &dev->buf_alloc );
-		return -ENOMEM;
-	}
-	memset( entry->buflist, 0, count * sizeof(*entry->buflist) );
-
-	entry->buf_size = size;
-	entry->page_order = page_order;
-
-	offset = 0;
-
-	while ( entry->buf_count < count ) {
-		buf          = &entry->buflist[entry->buf_count];
-		buf->idx     = dma->buf_count + entry->buf_count;
-		buf->total   = alignment;
-		buf->order   = order;
-		buf->used    = 0;
-
-		buf->offset  = (dma->byte_count + offset);
-		buf->bus_address = agp_offset + offset;
-		buf->address = (void *)(agp_offset + offset);
-		buf->next    = NULL;
-		buf->waiting = 0;
-		buf->pending = 0;
-		init_waitqueue_head( &buf->dma_wait );
-		buf->filp    = NULL;
-
-		buf->dev_priv_size = dev->dev_priv_size;
-		buf->dev_private = DRM(alloc)( buf->dev_priv_size,
-					       DRM_MEM_BUFS );
-		if(!buf->dev_private) {
-			/* Set count correctly so we free the proper amount. */
-			entry->buf_count = count;
-			DRM(cleanup_buf_error)(dev,entry);
-			up( &dev->struct_sem );
-			atomic_dec( &dev->buf_alloc );
-			return -ENOMEM;
-		}
-		memset( buf->dev_private, 0, buf->dev_priv_size );
-
-		DRM_DEBUG( "buffer %d @ %p\n",
-			   entry->buf_count, buf->address );
-
-		offset += alignment;
-		entry->buf_count++;
-		byte_count += PAGE_SIZE << page_order;
-	}
-
-	DRM_DEBUG( "byte_count: %d\n", byte_count );
-
-	temp_buflist = DRM(realloc)( dma->buflist,
-				     dma->buf_count * sizeof(*dma->buflist),
-				     (dma->buf_count + entry->buf_count)
-				     * sizeof(*dma->buflist),
-				     DRM_MEM_BUFS );
-	if(!temp_buflist) {
-		/* Free the entry because it isn't valid */
-		DRM(cleanup_buf_error)(dev,entry);
-		up( &dev->struct_sem );
-		atomic_dec( &dev->buf_alloc );
-		return -ENOMEM;
-	}
-	dma->buflist = temp_buflist;
-
-	for ( i = 0 ; i < entry->buf_count ; i++ ) {
-		dma->buflist[i + dma->buf_count] = &entry->buflist[i];
-	}
-
-	dma->buf_count += entry->buf_count;
-	dma->byte_count += byte_count;
-
-	DRM_DEBUG( "dma->buf_count : %d\n", dma->buf_count );
-	DRM_DEBUG( "entry->buf_count : %d\n", entry->buf_count );
-
-	up( &dev->struct_sem );
-
-	request.count = entry->buf_count;
-	request.size = size;
-
-	if ( copy_to_user( argp, &request, sizeof(request) ) )
-		return -EFAULT;
-
-	dma->flags = _DRM_DMA_USE_AGP;
-
-	atomic_dec( &dev->buf_alloc );
-	return 0;
-}
-#endif /* __OS_HAS_AGP */
-
-int DRM(addbufs_pci)( 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;
-	drm_buf_desc_t request;
-	int count;
-	int order;
-	int size;
-	int total;
-	int page_order;
-	drm_buf_entry_t *entry;
-	unsigned long page;
-	drm_buf_t *buf;
-	int alignment;
-	unsigned long offset;
-	int i;
-	int byte_count;
-	int page_count;
-	unsigned long *temp_pagelist;
-	drm_buf_t **temp_buflist;
-	drm_buf_desc_t __user *argp = (void __user *)arg;
-
-	if (!drm_core_check_feature(dev, DRIVER_PCI_DMA)) return -EINVAL;
-
-	if ( !dma ) return -EINVAL;
-
-	if ( copy_from_user( &request, argp, sizeof(request) ) )
-		return -EFAULT;
-
-	count = request.count;
-	order = DRM(order)( request.size );
-	size = 1 << order;
-
-	DRM_DEBUG( "count=%d, size=%d (%d), order=%d, queue_count=%d\n",
-		   request.count, request.size, size,
-		   order, dev->queue_count );
-
-	if ( order < DRM_MIN_ORDER || order > DRM_MAX_ORDER ) return -EINVAL;
-	if ( dev->queue_count ) return -EBUSY; /* Not while in use */
-
-	alignment = (request.flags & _DRM_PAGE_ALIGN)
-		? PAGE_ALIGN(size) : size;
-	page_order = order - PAGE_SHIFT > 0 ? order - PAGE_SHIFT : 0;
-	total = PAGE_SIZE << page_order;
-
-	spin_lock( &dev->count_lock );
-	if ( dev->buf_use ) {
-		spin_unlock( &dev->count_lock );
-		return -EBUSY;
-	}
-	atomic_inc( &dev->buf_alloc );
-	spin_unlock( &dev->count_lock );
-
-	down( &dev->struct_sem );
-	entry = &dma->bufs[order];
-	if ( entry->buf_count ) {
-		up( &dev->struct_sem );
-		atomic_dec( &dev->buf_alloc );
-		return -ENOMEM;	/* May only call once for each order */
-	}
-
-	if (count < 0 || count > 4096) {
-		up( &dev->struct_sem );
-		atomic_dec( &dev->buf_alloc );
-		return -EINVAL;
-	}
-
-	entry->buflist = DRM(alloc)( count * sizeof(*entry->buflist),
-				    DRM_MEM_BUFS );
-	if ( !entry->buflist ) {
-		up( &dev->struct_sem );
-		atomic_dec( &dev->buf_alloc );
-		return -ENOMEM;
-	}
-	memset( entry->buflist, 0, count * sizeof(*entry->buflist) );
-
-	entry->seglist = DRM(alloc)( count * sizeof(*entry->seglist),
-				    DRM_MEM_SEGS );
-	if ( !entry->seglist ) {
-		DRM(free)( entry->buflist,
-			  count * sizeof(*entry->buflist),
-			  DRM_MEM_BUFS );
-		up( &dev->struct_sem );
-		atomic_dec( &dev->buf_alloc );
-		return -ENOMEM;
-	}
-	memset( entry->seglist, 0, count * sizeof(*entry->seglist) );
-
-	/* Keep the original pagelist until we know all the allocations
-	 * have succeeded
-	 */
-	temp_pagelist = DRM(alloc)( (dma->page_count + (count << page_order))
-				    * sizeof(*dma->pagelist),
-				    DRM_MEM_PAGES );
-	if (!temp_pagelist) {
-		DRM(free)( entry->buflist,
-			   count * sizeof(*entry->buflist),
-			   DRM_MEM_BUFS );
-		DRM(free)( entry->seglist,
-			   count * sizeof(*entry->seglist),
-			   DRM_MEM_SEGS );
-		up( &dev->struct_sem );
-		atomic_dec( &dev->buf_alloc );
-		return -ENOMEM;
-	}
-	memcpy(temp_pagelist,
-	       dma->pagelist,
-	       dma->page_count * sizeof(*dma->pagelist));
-	DRM_DEBUG( "pagelist: %d entries\n",
-		   dma->page_count + (count << page_order) );
-
-	entry->buf_size	= size;
-	entry->page_order = page_order;
-	byte_count = 0;
-	page_count = 0;
-
-	while ( entry->buf_count < count ) {
-		page = DRM(alloc_pages)( page_order, DRM_MEM_DMA );
-		if ( !page ) {
-			/* Set count correctly so we free the proper amount. */
-			entry->buf_count = count;
-			entry->seg_count = count;
-			DRM(cleanup_buf_error)(dev,entry);
-			DRM(free)( temp_pagelist,
-				   (dma->page_count + (count << page_order))
-				   * sizeof(*dma->pagelist),
-				   DRM_MEM_PAGES );
-			up( &dev->struct_sem );
-			atomic_dec( &dev->buf_alloc );
-			return -ENOMEM;
-		}
-		entry->seglist[entry->seg_count++] = page;
-		for ( i = 0 ; i < (1 << page_order) ; i++ ) {
-			DRM_DEBUG( "page %d @ 0x%08lx\n",
-				   dma->page_count + page_count,
-				   page + PAGE_SIZE * i );
-			temp_pagelist[dma->page_count + page_count++]
-				= page + PAGE_SIZE * i;
-		}
-		for ( offset = 0 ;
-		      offset + size <= total && entry->buf_count < count ;
-		      offset += alignment, ++entry->buf_count ) {
-			buf	     = &entry->buflist[entry->buf_count];
-			buf->idx     = dma->buf_count + entry->buf_count;
-			buf->total   = alignment;
-			buf->order   = order;
-			buf->used    = 0;
-			buf->offset  = (dma->byte_count + byte_count + offset);
-			buf->address = (void *)(page + offset);
-			buf->bus_address = virt_to_bus(buf->address);
-			buf->next    = NULL;
-			buf->waiting = 0;
-			buf->pending = 0;
-			init_waitqueue_head( &buf->dma_wait );
-			buf->filp    = NULL;
-
-			buf->dev_priv_size = dev->dev_priv_size;
-			buf->dev_private = DRM(alloc)( dev->dev_priv_size,
-						       DRM_MEM_BUFS );
-			if(!buf->dev_private) {
-				/* Set count correctly so we free the proper amount. */
-				entry->buf_count = count;
-				entry->seg_count = count;
-				DRM(cleanup_buf_error)(dev,entry);
-				DRM(free)( temp_pagelist,
-					   (dma->page_count + (count << page_order))
-					   * sizeof(*dma->pagelist),
-					   DRM_MEM_PAGES );
-				up( &dev->struct_sem );
-				atomic_dec( &dev->buf_alloc );
-				return -ENOMEM;
-			}
-			memset( buf->dev_private, 0, buf->dev_priv_size );
-
-			DRM_DEBUG( "buffer %d @ %p\n",
-				   entry->buf_count, buf->address );
-		}
-		byte_count += PAGE_SIZE << page_order;
-	}
-
-	temp_buflist = DRM(realloc)( dma->buflist,
-				     dma->buf_count * sizeof(*dma->buflist),
-				     (dma->buf_count + entry->buf_count)
-				     * sizeof(*dma->buflist),
-				     DRM_MEM_BUFS );
-	if (!temp_buflist) {
-		/* Free the entry because it isn't valid */
-		DRM(cleanup_buf_error)(dev,entry);
-		DRM(free)( temp_pagelist,
-			   (dma->page_count + (count << page_order))
-			   * sizeof(*dma->pagelist),
-			   DRM_MEM_PAGES );
-		up( &dev->struct_sem );
-		atomic_dec( &dev->buf_alloc );
-		return -ENOMEM;
-	}
-	dma->buflist = temp_buflist;
-
-	for ( i = 0 ; i < entry->buf_count ; i++ ) {
-		dma->buflist[i + dma->buf_count] = &entry->buflist[i];
-	}
-
-	/* No allocations failed, so now we can replace the orginal pagelist
-	 * with the new one.
-	 */
-	if (dma->page_count) {
-		DRM(free)(dma->pagelist,
-			  dma->page_count * sizeof(*dma->pagelist),
-			  DRM_MEM_PAGES);
-	}
-	dma->pagelist = temp_pagelist;
-
-	dma->buf_count += entry->buf_count;
-	dma->seg_count += entry->seg_count;
-	dma->page_count += entry->seg_count << page_order;
-	dma->byte_count += PAGE_SIZE * (entry->seg_count << page_order);
-
-	up( &dev->struct_sem );
-
-	request.count = entry->buf_count;
-	request.size = size;
-
-	if ( copy_to_user( argp, &request, sizeof(request) ) )
-		return -EFAULT;
-
-	atomic_dec( &dev->buf_alloc );
-	return 0;
-
-}
-
-int DRM(addbufs_sg)( 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;
-	drm_buf_desc_t __user *argp = (void __user *)arg;
-	drm_buf_desc_t request;
-	drm_buf_entry_t *entry;
-	drm_buf_t *buf;
-	unsigned long offset;
-	unsigned long agp_offset;
-	int count;
-	int order;
-	int size;
-	int alignment;
-	int page_order;
-	int total;
-	int byte_count;
-	int i;
-	drm_buf_t **temp_buflist;
-
-	if (!drm_core_check_feature(dev, DRIVER_SG)) return -EINVAL;
-	
-	if ( !dma ) return -EINVAL;
-
-	if ( copy_from_user( &request, argp, sizeof(request) ) )
-		return -EFAULT;
-
-	count = request.count;
-	order = DRM(order)( request.size );
-	size = 1 << order;
-
-	alignment  = (request.flags & _DRM_PAGE_ALIGN)
-			? PAGE_ALIGN(size) : size;
-	page_order = order - PAGE_SHIFT > 0 ? order - PAGE_SHIFT : 0;
-	total = PAGE_SIZE << page_order;
-
-	byte_count = 0;
-	agp_offset = request.agp_start;
-
-	DRM_DEBUG( "count:      %d\n",  count );
-	DRM_DEBUG( "order:      %d\n",  order );
-	DRM_DEBUG( "size:       %d\n",  size );
-	DRM_DEBUG( "agp_offset: %lu\n", agp_offset );
-	DRM_DEBUG( "alignment:  %d\n",  alignment );
-	DRM_DEBUG( "page_order: %d\n",  page_order );
-	DRM_DEBUG( "total:      %d\n",  total );
-
-	if ( order < DRM_MIN_ORDER || order > DRM_MAX_ORDER ) return -EINVAL;
-	if ( dev->queue_count ) return -EBUSY; /* Not while in use */
-
-	spin_lock( &dev->count_lock );
-	if ( dev->buf_use ) {
-		spin_unlock( &dev->count_lock );
-		return -EBUSY;
-	}
-	atomic_inc( &dev->buf_alloc );
-	spin_unlock( &dev->count_lock );
-
-	down( &dev->struct_sem );
-	entry = &dma->bufs[order];
-	if ( entry->buf_count ) {
-		up( &dev->struct_sem );
-		atomic_dec( &dev->buf_alloc );
-		return -ENOMEM; /* May only call once for each order */
-	}
-
-	if (count < 0 || count > 4096) {
-		up( &dev->struct_sem );
-		atomic_dec( &dev->buf_alloc );
-		return -EINVAL;
-	}
-
-	entry->buflist = DRM(alloc)( count * sizeof(*entry->buflist),
-				     DRM_MEM_BUFS );
-	if ( !entry->buflist ) {
-		up( &dev->struct_sem );
-		atomic_dec( &dev->buf_alloc );
-		return -ENOMEM;
-	}
-	memset( entry->buflist, 0, count * sizeof(*entry->buflist) );
-
-	entry->buf_size = size;
-	entry->page_order = page_order;
-
-	offset = 0;
-
-	while ( entry->buf_count < count ) {
-		buf          = &entry->buflist[entry->buf_count];
-		buf->idx     = dma->buf_count + entry->buf_count;
-		buf->total   = alignment;
-		buf->order   = order;
-		buf->used    = 0;
-
-		buf->offset  = (dma->byte_count + offset);
-		buf->bus_address = agp_offset + offset;
-		buf->address = (void *)(agp_offset + offset + dev->sg->handle);
-		buf->next    = NULL;
-		buf->waiting = 0;
-		buf->pending = 0;
-		init_waitqueue_head( &buf->dma_wait );
-		buf->filp    = NULL;
-
-		buf->dev_priv_size = dev->dev_priv_size;
-		buf->dev_private = DRM(alloc)( dev->dev_priv_size,
-					       DRM_MEM_BUFS );
-		if(!buf->dev_private) {
-			/* Set count correctly so we free the proper amount. */
-			entry->buf_count = count;
-			DRM(cleanup_buf_error)(dev,entry);
-			up( &dev->struct_sem );
-			atomic_dec( &dev->buf_alloc );
-			return -ENOMEM;
-		}
-
-		memset( buf->dev_private, 0, buf->dev_priv_size );
-
-		DRM_DEBUG( "buffer %d @ %p\n",
-			   entry->buf_count, buf->address );
-
-		offset += alignment;
-		entry->buf_count++;
-		byte_count += PAGE_SIZE << page_order;
-	}
-
-	DRM_DEBUG( "byte_count: %d\n", byte_count );
-
-	temp_buflist = DRM(realloc)( dma->buflist,
-				     dma->buf_count * sizeof(*dma->buflist),
-				     (dma->buf_count + entry->buf_count)
-				     * sizeof(*dma->buflist),
-				     DRM_MEM_BUFS );
-	if(!temp_buflist) {
-		/* Free the entry because it isn't valid */
-		DRM(cleanup_buf_error)(dev,entry);
-		up( &dev->struct_sem );
-		atomic_dec( &dev->buf_alloc );
-		return -ENOMEM;
-	}
-	dma->buflist = temp_buflist;
-
-	for ( i = 0 ; i < entry->buf_count ; i++ ) {
-		dma->buflist[i + dma->buf_count] = &entry->buflist[i];
-	}
-
-	dma->buf_count += entry->buf_count;
-	dma->byte_count += byte_count;
-
-	DRM_DEBUG( "dma->buf_count : %d\n", dma->buf_count );
-	DRM_DEBUG( "entry->buf_count : %d\n", entry->buf_count );
-
-	up( &dev->struct_sem );
-
-	request.count = entry->buf_count;
-	request.size = size;
-
-	if ( copy_to_user( argp, &request, sizeof(request) ) )
-		return -EFAULT;
-
-	dma->flags = _DRM_DMA_USE_SG;
-
-	atomic_dec( &dev->buf_alloc );
-	return 0;
-}
-
-
-int DRM(addbufs_fb)( 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;
-	drm_buf_desc_t request;
-	drm_buf_entry_t *entry;
-	drm_buf_t *buf;
-	unsigned long offset;
-	unsigned long agp_offset;
-	int count;
-	int order;
-	int size;
-	int alignment;
-	int page_order;
-	int total;
-	int byte_count;
-	int i;
-	drm_buf_t **temp_buflist;
-	drm_buf_desc_t __user *argp = (void __user *)arg;
-
-	if (!drm_core_check_feature(dev, DRIVER_FB_DMA)) return -EINVAL;
-    
-	if ( !dma ) return -EINVAL;
-
-	if ( copy_from_user( &request, argp,
-			     sizeof(request) ) )
-		return -EFAULT;
-
-	count = request.count;
-	order = DRM(order)( request.size );
-	size = 1 << order;
-
-	alignment  = (request.flags & _DRM_PAGE_ALIGN)
-		? PAGE_ALIGN(size) : size;
-	page_order = order - PAGE_SHIFT > 0 ? order - PAGE_SHIFT : 0;
-	total = PAGE_SIZE << page_order;
-
-	byte_count = 0;
-	agp_offset = request.agp_start;
-
-	DRM_DEBUG( "count:      %d\n",  count );
-	DRM_DEBUG( "order:      %d\n",  order );
-	DRM_DEBUG( "size:       %d\n",  size );
-	DRM_DEBUG( "agp_offset: %lu\n", agp_offset );
-	DRM_DEBUG( "alignment:  %d\n",  alignment );
-	DRM_DEBUG( "page_order: %d\n",  page_order );
-	DRM_DEBUG( "total:      %d\n",  total );
-
-	if ( order < DRM_MIN_ORDER || order > DRM_MAX_ORDER ) return -EINVAL;
-	if ( dev->queue_count ) return -EBUSY; /* Not while in use */
-
-	spin_lock( &dev->count_lock );
-	if ( dev->buf_use ) {
-		spin_unlock( &dev->count_lock );
-		return -EBUSY;
-	}
-	atomic_inc( &dev->buf_alloc );
-	spin_unlock( &dev->count_lock );
-
-	down( &dev->struct_sem );
-	entry = &dma->bufs[order];
-	if ( entry->buf_count ) {
-		up( &dev->struct_sem );
-		atomic_dec( &dev->buf_alloc );
-		return -ENOMEM; /* May only call once for each order */
-	}
-
-	if (count < 0 || count > 4096) {
-		up( &dev->struct_sem );
-		atomic_dec( &dev->buf_alloc );
-		return -EINVAL;
-	}
-
-	entry->buflist = DRM(alloc)( count * sizeof(*entry->buflist),
-				    DRM_MEM_BUFS );
-	if ( !entry->buflist ) {
-		up( &dev->struct_sem );
-		atomic_dec( &dev->buf_alloc );
-		return -ENOMEM;
-	}
-	memset( entry->buflist, 0, count * sizeof(*entry->buflist) );
-
-	entry->buf_size = size;
-	entry->page_order = page_order;
-
-	offset = 0;
-
-	while ( entry->buf_count < count ) {
-		buf          = &entry->buflist[entry->buf_count];
-		buf->idx     = dma->buf_count + entry->buf_count;
-		buf->total   = alignment;
-		buf->order   = order;
-		buf->used    = 0;
-
-		buf->offset  = (dma->byte_count + offset);
-		buf->bus_address = agp_offset + offset;
-		buf->address = (void *)(agp_offset + offset);
-		buf->next    = NULL;
-		buf->waiting = 0;
-		buf->pending = 0;
-		init_waitqueue_head( &buf->dma_wait );
-		buf->filp    = NULL;
-
-		buf->dev_priv_size = dev->dev_priv_size;
-		buf->dev_private = DRM(alloc)( buf->dev_priv_size,
-					       DRM_MEM_BUFS );
-		if(!buf->dev_private) {
-			/* Set count correctly so we free the proper amount. */
-			entry->buf_count = count;
-			DRM(cleanup_buf_error)(dev,entry);
-			up( &dev->struct_sem );
-			atomic_dec( &dev->buf_alloc );
-			return -ENOMEM;
-		}
-		memset( buf->dev_private, 0, buf->dev_priv_size );
-
-		DRM_DEBUG( "buffer %d @ %p\n",
-			   entry->buf_count, buf->address );
-
-		offset += alignment;
-		entry->buf_count++;
-		byte_count += PAGE_SIZE << page_order;
-	}
-
-	DRM_DEBUG( "byte_count: %d\n", byte_count );
-
-	temp_buflist = DRM(realloc)( dma->buflist,
-				     dma->buf_count * sizeof(*dma->buflist),
-				     (dma->buf_count + entry->buf_count)
-				     * sizeof(*dma->buflist),
-				     DRM_MEM_BUFS );
-	if(!temp_buflist) {
-		/* Free the entry because it isn't valid */
-		DRM(cleanup_buf_error)(dev,entry);
-		up( &dev->struct_sem );
-		atomic_dec( &dev->buf_alloc );
-		return -ENOMEM;
-	}
-	dma->buflist = temp_buflist;
-
-	for ( i = 0 ; i < entry->buf_count ; i++ ) {
-		dma->buflist[i + dma->buf_count] = &entry->buflist[i];
-	}
-
-	dma->buf_count += entry->buf_count;
-	dma->byte_count += byte_count;
-
-	DRM_DEBUG( "dma->buf_count : %d\n", dma->buf_count );
-	DRM_DEBUG( "entry->buf_count : %d\n", entry->buf_count );
-
-	up( &dev->struct_sem );
-
-	request.count = entry->buf_count;
-	request.size = size;
-
-	if ( copy_to_user( argp, &request, sizeof(request) ) )
-		return -EFAULT;
-
-	dma->flags = _DRM_DMA_USE_FB;
-
-	atomic_dec( &dev->buf_alloc );
-	return 0;
-}
-
-
-
-/**
- * Add buffers for DMA transfers (ioctl).
- *
- * \param inode device inode.
- * \param filp file pointer.
- * \param cmd command.
- * \param arg pointer to a drm_buf_desc_t request.
- * \return zero on success or a negative number on failure.
- *
- * According with the memory type specified in drm_buf_desc::flags and the
- * build options, it dispatches the call either to addbufs_agp(),
- * addbufs_sg() or addbufs_pci() for AGP, scatter-gather or consistent
- * PCI memory respectively.
- */
-int DRM(addbufs)( struct inode *inode, struct file *filp,
-		  unsigned int cmd, unsigned long arg )
-{
-	drm_buf_desc_t request;
-	drm_file_t *priv = filp->private_data;
-	drm_device_t *dev = priv->dev;
-	
-	if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))
-		return -EINVAL;
-
-	if ( copy_from_user( &request, (drm_buf_desc_t __user *)arg,
-			     sizeof(request) ) )
-		return -EFAULT;
-
-#if __OS_HAS_AGP
-	if ( request.flags & _DRM_AGP_BUFFER )
-		return DRM(addbufs_agp)( inode, filp, cmd, arg );
-	else
-#endif
-	if ( request.flags & _DRM_SG_BUFFER )
-		return DRM(addbufs_sg)( inode, filp, cmd, arg );
-        else if ( request.flags & _DRM_FB_BUFFER )
-            return DRM(addbufs_fb)( inode, filp, cmd, arg );
-        else
-            return DRM(addbufs_pci)( inode, filp, cmd, arg );
-}
-
-
-/**
- * Get information about the buffer mappings.
- *
- * This was originally mean for debugging purposes, or by a sophisticated
- * client library to determine how best to use the available buffers (e.g.,
- * large buffers can be used for image transfer).
- *
- * \param inode device inode.
- * \param filp file pointer.
- * \param cmd command.
- * \param arg pointer to a drm_buf_info structure.
- * \return zero on success or a negative number on failure.
- *
- * Increments drm_device::buf_use while holding the drm_device::count_lock
- * lock, preventing of allocating more buffers after this call. Information
- * about each requested buffer is then copied into user space.
- */
-int DRM(infobufs)( 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;
-	drm_buf_info_t request;
-	drm_buf_info_t __user *argp = (void __user *)arg;
-	int i;
-	int count;
-
-	if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))
-		return -EINVAL;
-
-	if ( !dma ) return -EINVAL;
-
-	spin_lock( &dev->count_lock );
-	if ( atomic_read( &dev->buf_alloc ) ) {
-		spin_unlock( &dev->count_lock );
-		return -EBUSY;
-	}
-	++dev->buf_use;		/* Can't allocate more after this call */
-	spin_unlock( &dev->count_lock );
-
-	if ( copy_from_user( &request, argp, sizeof(request) ) )
-		return -EFAULT;
-
-	for ( i = 0, count = 0 ; i < DRM_MAX_ORDER + 1 ; i++ ) {
-		if ( dma->bufs[i].buf_count ) ++count;
-	}
-
-	DRM_DEBUG( "count = %d\n", count );
-
-	if ( request.count >= count ) {
-		for ( i = 0, count = 0 ; i < DRM_MAX_ORDER + 1 ; i++ ) {
-			if ( dma->bufs[i].buf_count ) {
-				drm_buf_desc_t __user *to = &request.list[count];
-				drm_buf_entry_t *from = &dma->bufs[i];
-				drm_freelist_t *list = &dma->bufs[i].freelist;
-				if ( copy_to_user( &to->count,
-						   &from->buf_count,
-						   sizeof(from->buf_count) ) ||
-				     copy_to_user( &to->size,
-						   &from->buf_size,
-						   sizeof(from->buf_size) ) ||
-				     copy_to_user( &to->low_mark,
-						   &list->low_mark,
-						   sizeof(list->low_mark) ) ||
-				     copy_to_user( &to->high_mark,
-						   &list->high_mark,
-						   sizeof(list->high_mark) ) )
-					return -EFAULT;
-
-				DRM_DEBUG( "%d %d %d %d %d\n",
-					   i,
-					   dma->bufs[i].buf_count,
-					   dma->bufs[i].buf_size,
-					   dma->bufs[i].freelist.low_mark,
-					   dma->bufs[i].freelist.high_mark );
-				++count;
-			}
-		}
-	}
-	request.count = count;
-
-	if ( copy_to_user( argp, &request, sizeof(request) ) )
-		return -EFAULT;
-
-	return 0;
-}
-
-/**
- * Specifies a low and high water mark for buffer allocation
- *
- * \param inode device inode.
- * \param filp file pointer.
- * \param cmd command.
- * \param arg a pointer to a drm_buf_desc structure.
- * \return zero on success or a negative number on failure.
- *
- * Verifies that the size order is bounded between the admissible orders and
- * updates the respective drm_device_dma::bufs entry low and high water mark.
- *
- * \note This ioctl is deprecated and mostly never used.
- */
-int DRM(markbufs)( 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;
-	drm_buf_desc_t request;
-	int order;
-	drm_buf_entry_t *entry;
-
-	if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))
-		return -EINVAL;
-
-	if ( !dma ) return -EINVAL;
-
-	if ( copy_from_user( &request,
-			     (drm_buf_desc_t __user *)arg,
-			     sizeof(request) ) )
-		return -EFAULT;
-
-	DRM_DEBUG( "%d, %d, %d\n",
-		   request.size, request.low_mark, request.high_mark );
-	order = DRM(order)( request.size );
-	if ( order < DRM_MIN_ORDER || order > DRM_MAX_ORDER ) return -EINVAL;
-	entry = &dma->bufs[order];
-
-	if ( request.low_mark < 0 || request.low_mark > entry->buf_count )
-		return -EINVAL;
-	if ( request.high_mark < 0 || request.high_mark > entry->buf_count )
-		return -EINVAL;
-
-	entry->freelist.low_mark  = request.low_mark;
-	entry->freelist.high_mark = request.high_mark;
-
-	return 0;
-}
-
-/**
- * Unreserve the buffers in list, previously reserved using drmDMA. 
- *
- * \param inode device inode.
- * \param filp file pointer.
- * \param cmd command.
- * \param arg pointer to a drm_buf_free structure.
- * \return zero on success or a negative number on failure.
- * 
- * Calls free_buffer() for each used buffer.
- * This function is primarily used for debugging.
- */
-int DRM(freebufs)( 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;
-	drm_buf_free_t request;
-	int i;
-	int idx;
-	drm_buf_t *buf;
-
-	if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))
-		return -EINVAL;
-
-	if ( !dma ) return -EINVAL;
-
-	if ( copy_from_user( &request,
-			     (drm_buf_free_t __user *)arg,
-			     sizeof(request) ) )
-		return -EFAULT;
-
-	DRM_DEBUG( "%d\n", request.count );
-	for ( i = 0 ; i < request.count ; i++ ) {
-		if ( copy_from_user( &idx,
-				     &request.list[i],
-				     sizeof(idx) ) )
-			return -EFAULT;
-		if ( idx < 0 || idx >= dma->buf_count ) {
-			DRM_ERROR( "Index %d (of %d max)\n",
-				   idx, dma->buf_count - 1 );
-			return -EINVAL;
-		}
-		buf = dma->buflist[idx];
-		if ( buf->filp != filp ) {
-			DRM_ERROR( "Process %d freeing buffer not owned\n",
-				   current->pid );
-			return -EINVAL;
-		}
-		DRM(free_buffer)( dev, buf );
-	}
-
-	return 0;
-}
-
-/**
- * Maps all of the DMA buffers into client-virtual space (ioctl).
- *
- * \param inode device inode.
- * \param filp file pointer.
- * \param cmd command.
- * \param arg pointer to a drm_buf_map structure.
- * \return zero on success or a negative number on failure.
- *
- * Maps the AGP or SG buffer region with do_mmap(), and copies information
- * about each buffer into user space. The PCI buffers are already mapped on the
- * addbufs_pci() call.
- */
-int DRM(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;
-	drm_buf_map_t __user *argp = (void __user *)arg;
-	int retcode = 0;
-	const int zero = 0;
-	unsigned long virtual;
-	unsigned long address;
-	drm_buf_map_t request;
-	int i;
-
-	if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))
-		return -EINVAL;
-
-	if ( !dma ) return -EINVAL;
-
-	spin_lock( &dev->count_lock );
-	if ( atomic_read( &dev->buf_alloc ) ) {
-		spin_unlock( &dev->count_lock );
-		return -EBUSY;
-	}
-	dev->buf_use++;		/* Can't allocate more after this call */
-	spin_unlock( &dev->count_lock );
-
-	if ( copy_from_user( &request, argp, sizeof(request) ) )
-		return -EFAULT;
-
-	if ( request.count >= dma->buf_count ) {
-		if ((drm_core_has_AGP(dev) && (dma->flags & _DRM_DMA_USE_AGP)) ||
-                    (drm_core_check_feature(dev, DRIVER_SG) && (dma->flags & _DRM_DMA_USE_SG)) ||
-                    (drm_core_check_feature(dev, DRIVER_FB_DMA) && (dma->flags & _DRM_DMA_USE_FB))) {
-			drm_map_t *map = dev->agp_buffer_map;
-
-			if ( !map ) {
-				retcode = -EINVAL;
-				goto done;
-			}
-
-#if LINUX_VERSION_CODE <= 0x020402
-			down( &current->mm->mmap_sem );
-#else
-			down_write( &current->mm->mmap_sem );
-#endif
-			virtual = do_mmap( filp, 0, map->size,
-					   PROT_READ | PROT_WRITE,
-					   MAP_SHARED,
-					   (unsigned long)map->offset );
-#if LINUX_VERSION_CODE <= 0x020402
-			up( &current->mm->mmap_sem );
-#else
-			up_write( &current->mm->mmap_sem );
-#endif
-		} else {
-#if LINUX_VERSION_CODE <= 0x020402
-			down( &current->mm->mmap_sem );
-#else
-			down_write( &current->mm->mmap_sem );
-#endif
-			virtual = do_mmap( filp, 0, dma->byte_count,
-					   PROT_READ | PROT_WRITE,
-					   MAP_SHARED, 0 );
-#if LINUX_VERSION_CODE <= 0x020402
-			up( &current->mm->mmap_sem );
-#else
-			up_write( &current->mm->mmap_sem );
-#endif
-		}
-		if ( virtual > -1024UL ) {
-			/* Real error */
-			retcode = (signed long)virtual;
-			goto done;
-		}
-		request.virtual = (void __user *)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 );
-
-	if ( copy_to_user( argp, &request, sizeof(request) ) )
-		return -EFAULT;
-
-	return retcode;
-}
-