Lots of DRM fixes: added new pieces of template code so the ffb driver can

    be ported, rolled back r128 and i810 version bumps so 4.1.0 works with
    cvs kernel modules, added Config.in and updated Makefile.kernel,
    incorporated lots of drm fixes inspired by patches sent by Redhat, made
    DRM(realloc) usage check for NULL allocations, restructure driver init
    routines to export dev_priv only when initialized and to check for all
    error conditions.

1 files changed, 0 insertions, 298 deletions

diff --git a/linux/radeon_bufs.c b/linux/radeon_bufs.c
deleted file mode 100644
index 9a3093eb..00000000
--- a/linux/radeon_bufs.c
+++ /dev/null
@@ -1,298 +0,0 @@
-/* radeon_bufs.c -- IOCTLs to manage buffers -*- linux-c -*-
- *
- * Copyright 2000 Precision Insight, Inc., Cedar Park, Texas.
- * Copyright 2000 VA Linux Systems, Inc., Fremont, 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
- * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- * Authors: Kevin E. Martin <martin@valinux.com>
- *          Rickard E. (Rik) Faith <faith@valinux.com>
- *	    Jeff Hartmann <jhartmann@valinux.com>
- *
- */
-
-#define __NO_VERSION__
-#include <linux/config.h>
-#include "drmP.h"
-#include "radeon_drv.h"
-#include "linux/un.h"
-
-
-#if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
-int radeon_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;
-
-	if (!dma) return -EINVAL;
-
-	if (copy_from_user(&request, (drm_buf_desc_t *)arg, 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: %ld\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 */
-	}
-
-	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;
-
-	for (offset = 0;
-	     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 + offset);
-		buf->address = (void *)(agp_offset + offset);
-		buf->next    = NULL;
-		buf->waiting = 0;
-		buf->pending = 0;
-		init_waitqueue_head(&buf->dma_wait);
-		buf->pid     = 0;
-
-		buf->dev_priv_size = sizeof(drm_radeon_buf_priv_t);
-		buf->dev_private   = drm_alloc(sizeof(drm_radeon_buf_priv_t),
-					       DRM_MEM_BUFS);
-		memset(buf->dev_private, 0, buf->dev_priv_size);
-
-#if DRM_DMA_HISTOGRAM
-		buf->time_queued     = 0;
-		buf->time_dispatched = 0;
-		buf->time_completed  = 0;
-		buf->time_freed      = 0;
-#endif
-
-		byte_count += PAGE_SIZE << page_order;
-
-		DRM_DEBUG("buffer %d @ %p\n",
-			  entry->buf_count, buf->address);
-	}
-
-	DRM_DEBUG("byte_count: %d\n", byte_count);
-
-	dma->buflist = drm_realloc(dma->buflist,
-				   dma->buf_count * sizeof(*dma->buflist),
-				   (dma->buf_count + entry->buf_count)
-				   * sizeof(*dma->buflist),
-				   DRM_MEM_BUFS);
-	for (i = dma->buf_count; i < dma->buf_count + entry->buf_count; i++)
-		dma->buflist[i] = &entry->buflist[i - dma->buf_count];
-
-	dma->buf_count  += entry->buf_count;
-	dma->byte_count += byte_count;
-
-	drm_freelist_create(&entry->freelist, entry->buf_count);
-	for (i = 0; i < entry->buf_count; i++) {
-		drm_freelist_put(dev, &entry->freelist, &entry->buflist[i]);
-	}
-
-	up(&dev->struct_sem);
-
-	request.count = entry->buf_count;
-	request.size  = size;
-
-	if (copy_to_user((drm_buf_desc_t *)arg, &request, sizeof(request)))
-		return -EFAULT;
-
-	dma->flags = _DRM_DMA_USE_AGP;
-
-	atomic_dec(&dev->buf_alloc);
-	return 0;
-}
-#endif
-
-int radeon_addbufs(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_radeon_private_t	*dev_priv	= dev->dev_private;
-	drm_buf_desc_t		request;
-
-	if (!dev_priv || dev_priv->is_pci) return -EINVAL;
-
-	if (copy_from_user(&request, (drm_buf_desc_t *)arg, sizeof(request)))
-		return -EFAULT;
-
-#if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
-	if (request.flags & _DRM_AGP_BUFFER)
-		return radeon_addbufs_agp(inode, filp, cmd, arg);
-	else
-#endif
-		return -EINVAL;
-}
-
-int radeon_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_radeon_private_t	*dev_priv	= dev->dev_private;
-	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 || !dev_priv || dev_priv->is_pci) return -EINVAL;
-
-	DRM_DEBUG("\n");
-
-	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, (drm_buf_map_t *)arg, sizeof(request)))
-		return -EFAULT;
-
-	if (request.count >= dma->buf_count) {
-		if (dma->flags & _DRM_DMA_USE_AGP) {
-			drm_map_t *map;
-
-			map = dev_priv->buffers;
-			if (!map) {
-				retcode = -EINVAL;
-				goto done;
-			}
-
-			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 */
-			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);
-
-	if (copy_to_user((drm_buf_map_t *)arg, &request, sizeof(request)))
-		return -EFAULT;
-
-	return retcode;
-}