From ddcb28259f70d6808caf57e8eb9f74ca95b5f069 Mon Sep 17 00:00:00 2001
From: Keith Whitwell <keith@tungstengraphics.com>
Date: Thu, 25 May 2000 21:06:02 +0000
Subject: 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

---
 linux/i810_bufs.c | 111 +-----------------------------------------------------
 1 file changed, 1 insertion(+), 110 deletions(-)

(limited to 'linux/i810_bufs.c')

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;
-}
-- 
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