drm: major update from CVS for radeon and core

This patch pull in a lot of changes from CVS to the main core DRM,
and updates the radeon driver to 1.21.0 that supports r300 texrect
and radeon card type ioctl.

Signed-off-by: Dave Airlie <airlied@linux.ie>

12 files changed, 366 insertions, 381 deletions

diff --git a/drivers/char/drm/drmP.h b/drivers/char/drm/drmP.h
index 43c49ad3069..307254da7d0 100644
--- a/drivers/char/drm/drmP.h
+++ b/drivers/char/drm/drmP.h
@@ -550,7 +550,7 @@ struct drm_driver {
 	int (*kernel_context_switch) (struct drm_device * dev, int old,
 				      int new);
 	void (*kernel_context_switch_unlock) (struct drm_device * dev,
-					      drm_lock_t * lock);
+					      drm_lock_t *lock);
 	int (*vblank_wait) (struct drm_device * dev, unsigned int *sequence);
 	int (*dri_library_name) (struct drm_device *dev, char *buf);
 
@@ -574,12 +574,11 @@ struct drm_driver {
 	void (*irq_postinstall) (struct drm_device * dev);
 	void (*irq_uninstall) (struct drm_device * dev);
 	void (*reclaim_buffers) (struct drm_device * dev, struct file * filp);
-	void (*reclaim_buffers_locked) (struct drm_device *drv,
+	void (*reclaim_buffers_locked) (struct drm_device *dev,
 					struct file *filp);
 	unsigned long (*get_map_ofs) (drm_map_t * map);
 	unsigned long (*get_reg_ofs) (struct drm_device * dev);
 	void (*set_version) (struct drm_device * dev, drm_set_version_t * sv);
-	int (*version) (drm_version_t * version);
 
 	int major;
 	int minor;
@@ -774,10 +773,6 @@ static inline int drm_mtrr_del(int handle, unsigned long offset,
 /** \name Internal function definitions */
 /*@{*/
 
-				/* Misc. support (drm_init.h) */
-extern int drm_flags;
-extern void drm_parse_options(char *s);
-
 				/* Driver support (drm_drv.h) */
 extern int drm_init(struct drm_driver *driver);
 extern void drm_exit(struct drm_driver *driver);
@@ -831,6 +826,8 @@ extern int drm_getstats(struct inode *inode, struct file *filp,
 			unsigned int cmd, unsigned long arg);
 extern int drm_setversion(struct inode *inode, struct file *filp,
 			  unsigned int cmd, unsigned long arg);
+extern int drm_noop(struct inode *inode, struct file *filp,
+		    unsigned int cmd, unsigned long arg);
 
 				/* Context IOCTL support (drm_context.h) */
 extern int drm_resctx(struct inode *inode, struct file *filp,
@@ -869,10 +866,6 @@ extern int drm_getmagic(struct inode *inode, struct file *filp,
 extern int drm_authmagic(struct inode *inode, struct file *filp,
 			 unsigned int cmd, unsigned long arg);
 
-				/* Placeholder for ioctls past */
-extern int drm_noop(struct inode *inode, struct file *filp,
-		    unsigned int cmd, unsigned long arg);
-
 				/* Locking IOCTL support (drm_lock.h) */
 extern int drm_lock(struct inode *inode, struct file *filp,
 		    unsigned int cmd, unsigned long arg);
@@ -885,6 +878,7 @@ extern int drm_lock_free(drm_device_t * dev,
 				/* Buffer management support (drm_bufs.h) */
 extern int drm_addbufs_agp(drm_device_t * dev, drm_buf_desc_t * request);
 extern int drm_addbufs_pci(drm_device_t * dev, drm_buf_desc_t * request);
+extern int drm_addbufs_fb(drm_device_t *dev, drm_buf_desc_t *request);
 extern int drm_addmap(drm_device_t * dev, unsigned int offset,
 		      unsigned int size, drm_map_type_t type,
 		      drm_map_flags_t flags, drm_local_map_t ** map_ptr);
@@ -920,8 +914,8 @@ extern void drm_core_reclaim_buffers(drm_device_t * dev, struct file *filp);
 				/* IRQ support (drm_irq.h) */
 extern int drm_control(struct inode *inode, struct file *filp,
 		       unsigned int cmd, unsigned long arg);
-extern int drm_irq_uninstall(drm_device_t * dev);
 extern irqreturn_t drm_irq_handler(DRM_IRQ_ARGS);
+extern int drm_irq_uninstall(drm_device_t * dev);
 extern void drm_driver_irq_preinstall(drm_device_t * dev);
 extern void drm_driver_irq_postinstall(drm_device_t * dev);
 extern void drm_driver_irq_uninstall(drm_device_t * dev);
diff --git a/drivers/char/drm/drm_agpsupport.c b/drivers/char/drm/drm_agpsupport.c
index b80e61a4c40..fabc930c67a 100644
--- a/drivers/char/drm/drm_agpsupport.c
+++ b/drivers/char/drm/drm_agpsupport.c
@@ -1,5 +1,5 @@
 /**
- * \file drm_agpsupport.h
+ * \file drm_agpsupport.c
  * DRM support for AGP/GART backend
  *
  * \author Rickard E. (Rik) Faith <faith@valinux.com>
@@ -91,7 +91,7 @@ int drm_agp_info_ioctl(struct inode *inode, struct file *filp,
 /**
  * Acquire the AGP device.
  *
- * \param dev DRM device that is to acquire AGP
+ * \param dev DRM device that is to acquire AGP.
  * \return zero on success or a negative number on failure.
  *
  * Verifies the AGP device hasn't been acquired before and calls
@@ -134,7 +134,7 @@ int drm_agp_acquire_ioctl(struct inode *inode, struct file *filp,
 /**
  * Release the AGP device.
  *
- * \param dev DRM device that is to release AGP
+ * \param dev DRM device that is to release AGP.
  * \return zero on success or a negative number on failure.
  *
  * Verifies the AGP device has been acquired and calls \c agp_backend_release.
@@ -147,7 +147,6 @@ int drm_agp_release(drm_device_t * dev)
 	dev->agp->acquired = 0;
 	return 0;
 }
-
 EXPORT_SYMBOL(drm_agp_release);
 
 int drm_agp_release_ioctl(struct inode *inode, struct file *filp,
@@ -447,6 +446,9 @@ int drm_agp_free_ioctl(struct inode *inode, struct file *filp,
  *
  * \return pointer to a drm_agp_head structure.
  *
+ * Gets the drm_agp_t structure which is made available by the agpgart module
+ * via the inter_module_* functions. Creates and initializes a drm_agp_head
+ * structure.
  */
 drm_agp_head_t *drm_agp_init(drm_device_t * dev)
 {
diff --git a/drivers/char/drm/drm_bufs.c b/drivers/char/drm/drm_bufs.c
index 319bdea8de8..1845dd06281 100644
--- a/drivers/char/drm/drm_bufs.c
+++ b/drivers/char/drm/drm_bufs.c
@@ -36,22 +36,21 @@
 #include <linux/vmalloc.h>
 #include "drmP.h"
 
-unsigned long drm_get_resource_start(drm_device_t * dev, unsigned int resource)
+unsigned long drm_get_resource_start(drm_device_t *dev, unsigned int resource)
 {
 	return pci_resource_start(dev->pdev, resource);
 }
-
 EXPORT_SYMBOL(drm_get_resource_start);
 
-unsigned long drm_get_resource_len(drm_device_t * dev, unsigned int resource)
+unsigned long drm_get_resource_len(drm_device_t *dev, unsigned int resource)
 {
 	return pci_resource_len(dev->pdev, resource);
 }
 
 EXPORT_SYMBOL(drm_get_resource_len);
 
-static drm_map_list_t *drm_find_matching_map(drm_device_t * dev,
-					     drm_local_map_t * map)
+static drm_map_list_t *drm_find_matching_map(drm_device_t *dev,
+					     drm_local_map_t *map)
 {
 	struct list_head *list;
 
@@ -74,7 +73,7 @@ static drm_map_list_t *drm_find_matching_map(drm_device_t * dev,
 
 #ifdef _LP64
 static __inline__ unsigned int HandleID(unsigned long lhandle,
-					drm_device_t * dev)
+					drm_device_t *dev)
 {
 	static unsigned int map32_handle = START_RANGE;
 	unsigned int hash;
@@ -301,6 +300,9 @@ int drm_addmap_ioctl(struct inode *inode, struct file *filp,
 		return -EFAULT;
 	}
 
+	if (!(capable(CAP_SYS_ADMIN) || map.type == _DRM_AGP))
+		return -EPERM;
+
 	err = drm_addmap_core(dev, map.offset, map.size, map.type, map.flags,
 			      &maplist);
 
@@ -332,7 +334,7 @@ int drm_addmap_ioctl(struct inode *inode, struct file *filp,
  *
  * \sa drm_addmap
  */
-int drm_rmmap_locked(drm_device_t * dev, drm_local_map_t * map)
+int drm_rmmap_locked(drm_device_t *dev, drm_local_map_t *map)
 {
 	struct list_head *list;
 	drm_map_list_t *r_list = NULL;
@@ -384,10 +386,9 @@ int drm_rmmap_locked(drm_device_t * dev, drm_local_map_t * map)
 
 	return 0;
 }
-
 EXPORT_SYMBOL(drm_rmmap_locked);
 
-int drm_rmmap(drm_device_t * dev, drm_local_map_t * map)
+int drm_rmmap(drm_device_t *dev, drm_local_map_t *map)
 {
 	int ret;
 
@@ -397,7 +398,6 @@ int drm_rmmap(drm_device_t * dev, drm_local_map_t * map)
 
 	return ret;
 }
-
 EXPORT_SYMBOL(drm_rmmap);
 
 /* The rmmap ioctl appears to be unnecessary.  All mappings are torn down on
@@ -548,7 +548,7 @@ int drm_addbufs_agp(drm_device_t * dev, drm_buf_desc_t * request)
 	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("agp_offset: %lx\n", agp_offset);
 	DRM_DEBUG("alignment:  %d\n", alignment);
 	DRM_DEBUG("page_order: %d\n", page_order);
 	DRM_DEBUG("total:      %d\n", total);
@@ -649,6 +649,8 @@ int drm_addbufs_agp(drm_device_t * dev, drm_buf_desc_t * request)
 	}
 
 	dma->buf_count += entry->buf_count;
+	dma->seg_count += entry->seg_count;
+	dma->page_count += byte_count >> PAGE_SHIFT;
 	dma->byte_count += byte_count;
 
 	DRM_DEBUG("dma->buf_count : %d\n", dma->buf_count);
@@ -664,7 +666,6 @@ int drm_addbufs_agp(drm_device_t * dev, drm_buf_desc_t * request)
 	atomic_dec(&dev->buf_alloc);
 	return 0;
 }
-
 EXPORT_SYMBOL(drm_addbufs_agp);
 #endif				/* __OS_HAS_AGP */
 
@@ -689,9 +690,13 @@ int drm_addbufs_pci(drm_device_t * dev, drm_buf_desc_t * request)
 
 	if (!drm_core_check_feature(dev, DRIVER_PCI_DMA))
 		return -EINVAL;
+
 	if (!dma)
 		return -EINVAL;
 
+	if (!capable(CAP_SYS_ADMIN))
+		return -EPERM;
+
 	count = request->count;
 	order = drm_order(request->size);
 	size = 1 << order;
@@ -882,7 +887,6 @@ int drm_addbufs_pci(drm_device_t * dev, drm_buf_desc_t * request)
 	return 0;
 
 }
-
 EXPORT_SYMBOL(drm_addbufs_pci);
 
 static int drm_addbufs_sg(drm_device_t * dev, drm_buf_desc_t * request)
@@ -908,6 +912,9 @@ static int drm_addbufs_sg(drm_device_t * dev, drm_buf_desc_t * request)
 	if (!dma)
 		return -EINVAL;
 
+	if (!capable(CAP_SYS_ADMIN))
+		return -EPERM;
+
 	count = request->count;
 	order = drm_order(request->size);
 	size = 1 << order;
@@ -1026,6 +1033,8 @@ static int drm_addbufs_sg(drm_device_t * dev, drm_buf_desc_t * request)
 	}
 
 	dma->buf_count += entry->buf_count;
+	dma->seg_count += entry->seg_count;
+	dma->page_count += byte_count >> PAGE_SHIFT;
 	dma->byte_count += byte_count;
 
 	DRM_DEBUG("dma->buf_count : %d\n", dma->buf_count);
@@ -1042,7 +1051,7 @@ static int drm_addbufs_sg(drm_device_t * dev, drm_buf_desc_t * request)
 	return 0;
 }
 
-static int drm_addbufs_fb(drm_device_t * dev, drm_buf_desc_t * request)
+int drm_addbufs_fb(drm_device_t * dev, drm_buf_desc_t * request)
 {
 	drm_device_dma_t *dma = dev->dma;
 	drm_buf_entry_t *entry;
@@ -1065,6 +1074,9 @@ static int drm_addbufs_fb(drm_device_t * dev, drm_buf_desc_t * request)
 	if (!dma)
 		return -EINVAL;
 
+	if (!capable(CAP_SYS_ADMIN))
+		return -EPERM;
+
 	count = request->count;
 	order = drm_order(request->size);
 	size = 1 << order;
@@ -1181,6 +1193,8 @@ static int drm_addbufs_fb(drm_device_t * dev, drm_buf_desc_t * request)
 	}
 
 	dma->buf_count += entry->buf_count;
+	dma->seg_count += entry->seg_count;
+	dma->page_count += byte_count >> PAGE_SHIFT;
 	dma->byte_count += byte_count;
 
 	DRM_DEBUG("dma->buf_count : %d\n", dma->buf_count);
@@ -1196,6 +1210,8 @@ static int drm_addbufs_fb(drm_device_t * dev, drm_buf_desc_t * request)
 	atomic_dec(&dev->buf_alloc);
 	return 0;
 }
+EXPORT_SYMBOL(drm_addbufs_fb);
+
 
 /**
  * Add buffers for DMA transfers (ioctl).
@@ -1577,5 +1593,6 @@ int drm_order(unsigned long size)
 
 	return order;
 }
-
 EXPORT_SYMBOL(drm_order);
+
+
diff --git a/drivers/char/drm/drm_fops.c b/drivers/char/drm/drm_fops.c
index b73543c694a..403f44a1bf0 100644
--- a/drivers/char/drm/drm_fops.c
+++ b/drivers/char/drm/drm_fops.c
@@ -35,6 +35,7 @@
  */
 
 #include "drmP.h"
+#include "drm_sarea.h"
 #include <linux/poll.h>
 
 static int drm_open_helper(struct inode *inode, struct file *filp,
@@ -42,6 +43,7 @@ static int drm_open_helper(struct inode *inode, struct file *filp,
 
 static int drm_setup(drm_device_t * dev)
 {
+	drm_local_map_t *map;
 	int i;
 	int ret;
 
@@ -51,6 +53,11 @@ static int drm_setup(drm_device_t * dev)
 			return ret;
 	}
 
+	/* prebuild the SAREA */
+	i = drm_addmap(dev, 0, SAREA_MAX, _DRM_SHM, _DRM_CONTAINS_LOCK, &map);
+	if (i != 0)
+		return i;
+
 	atomic_set(&dev->ioctl_count, 0);
 	atomic_set(&dev->vma_count, 0);
 	dev->buf_use = 0;
@@ -152,10 +159,168 @@ int drm_open(struct inode *inode, struct file *filp)
 
 	return retcode;
 }
-
 EXPORT_SYMBOL(drm_open);
 
 /**
+ * File \c open operation.
+ *
+ * \param inode device inode.
+ * \param filp file pointer.
+ *
+ * Puts the dev->fops corresponding to the device minor number into
+ * \p filp, call the \c open method, and restore the file operations.
+ */
+int drm_stub_open(struct inode *inode, struct file *filp)
+{
+	drm_device_t *dev = NULL;
+	int minor = iminor(inode);
+	int err = -ENODEV;
+	struct file_operations *old_fops;
+
+	DRM_DEBUG("\n");
+
+	if (!((minor >= 0) && (minor < drm_cards_limit)))
+		return -ENODEV;
+
+	if (!drm_heads[minor])
+		return -ENODEV;
+
+	if (!(dev = drm_heads[minor]->dev))
+		return -ENODEV;
+
+	old_fops = filp->f_op;
+	filp->f_op = fops_get(&dev->driver->fops);
+	if (filp->f_op->open && (err = filp->f_op->open(inode, filp))) {
+		fops_put(filp->f_op);
+		filp->f_op = fops_get(old_fops);
+	}
+	fops_put(old_fops);
+
+	return err;
+}
+
+/**
+ * Check whether DRI will run on this CPU.
+ *
+ * \return non-zero if the DRI will run on this CPU, or zero otherwise.
+ */
+static int drm_cpu_valid(void)
+{
+#if defined(__i386__)
+	if (boot_cpu_data.x86 == 3)
+		return 0;	/* No cmpxchg on a 386 */
+#endif
+#if defined(__sparc__) && !defined(__sparc_v9__)
+	return 0;		/* No cmpxchg before v9 sparc. */
+#endif
+	return 1;
+}
+
+/**
+ * Called whenever a process opens /dev/drm.
+ *
+ * \param inode device inode.
+ * \param filp file pointer.
+ * \param dev device.
+ * \return zero on success or a negative number on failure.
+ *
+ * Creates and initializes a drm_file structure for the file private data in \p
+ * filp and add it into the double linked list in \p dev.
+ */
+static int drm_open_helper(struct inode *inode, struct file *filp,
+			   drm_device_t * dev)
+{
+	int minor = iminor(inode);
+	drm_file_t *priv;
+	int ret;
+
+	if (filp->f_flags & O_EXCL)
+		return -EBUSY;	/* No exclusive opens */
+	if (!drm_cpu_valid())
+		return -EINVAL;
+
+	DRM_DEBUG("pid = %d, minor = %d\n", current->pid, minor);
+
+	priv = drm_alloc(sizeof(*priv), DRM_MEM_FILES);
+	if (!priv)
+		return -ENOMEM;
+
+	memset(priv, 0, sizeof(*priv));
+	filp->private_data = priv;
+	priv->uid = current->euid;
+	priv->pid = current->pid;
+	priv->minor = minor;
+	priv->head = drm_heads[minor];
+	priv->ioctl_count = 0;
+	/* for compatibility root is always authenticated */
+	priv->authenticated = capable(CAP_SYS_ADMIN);
+	priv->lock_count = 0;
+
+	if (dev->driver->open) {
+		ret = dev->driver->open(dev, priv);
+		if (ret < 0)
+			goto out_free;
+	}
+
+	down(&dev->struct_sem);
+	if (!dev->file_last) {
+		priv->next = NULL;
+		priv->prev = NULL;
+		dev->file_first = priv;
+		dev->file_last = priv;
+		/* first opener automatically becomes master */
+		priv->master = 1;
+	} else {
+		priv->next = NULL;
+		priv->prev = dev->file_last;
+		dev->file_last->next = priv;
+		dev->file_last = priv;
+	}
+	up(&dev->struct_sem);
+
+#ifdef __alpha__
+	/*
+	 * Default the hose
+	 */
+	if (!dev->hose) {
+		struct pci_dev *pci_dev;
+		pci_dev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, NULL);
+		if (pci_dev) {
+			dev->hose = pci_dev->sysdata;
+			pci_dev_put(pci_dev);
+		}
+		if (!dev->hose) {
+			struct pci_bus *b = pci_bus_b(pci_root_buses.next);
+			if (b)
+				dev->hose = b->sysdata;
+		}
+	}
+#endif
+
+	return 0;
+      out_free:
+	drm_free(priv, sizeof(*priv), DRM_MEM_FILES);
+	filp->private_data = NULL;
+	return ret;
+}
+
+/** No-op. */
+int drm_fasync(int fd, struct file *filp, int on)
+{
+	drm_file_t *priv = filp->private_data;
+	drm_device_t *dev = priv->head->dev;
+	int retcode;
+
+	DRM_DEBUG("fd = %d, device = 0x%lx\n", fd,
+		  (long)old_encode_dev(priv->head->device));
+	retcode = fasync_helper(fd, filp, on, &dev->buf_async);
+	if (retcode < 0)
+		return retcode;
+	return 0;
+}
+EXPORT_SYMBOL(drm_fasync);
+
+/**
  * Release file.
  *
  * \param inode device inode
@@ -291,7 +456,6 @@ int drm_release(struct inode *inode, struct file *filp)
 
 	if (dev->driver->postclose)
 		dev->driver->postclose(dev, priv);
-
 	drm_free(priv, sizeof(*priv), DRM_MEM_FILES);
 
 	/* ========================================================
@@ -318,132 +482,11 @@ int drm_release(struct inode *inode, struct file *filp)
 
 	return retcode;
 }
-
 EXPORT_SYMBOL(drm_release);
 
-/**
- * Check whether DRI will run on this CPU.
- *
- * \return non-zero if the DRI will run on this CPU, or zero otherwise.
- */
-static int drm_cpu_valid(void)
-{
-#if defined(__i386__)
-	if (boot_cpu_data.x86 == 3)
-		return 0;	/* No cmpxchg on a 386 */
-#endif
-#if defined(__sparc__) && !defined(__sparc_v9__)
-	return 0;		/* No cmpxchg before v9 sparc. */
-#endif
-	return 1;
-}
-
-/**
- * Called whenever a process opens /dev/drm.
- *
- * \param inode device inode.
- * \param filp file pointer.
- * \param dev device.
- * \return zero on success or a negative number on failure.
- *
- * Creates and initializes a drm_file structure for the file private data in \p
- * filp and add it into the double linked list in \p dev.
- */
-static int drm_open_helper(struct inode *inode, struct file *filp,
-			   drm_device_t * dev)
-{
-	int minor = iminor(inode);
-	drm_file_t *priv;
-	int ret;
-
-	if (filp->f_flags & O_EXCL)
-		return -EBUSY;	/* No exclusive opens */
-	if (!drm_cpu_valid())
-		return -EINVAL;
-
-	DRM_DEBUG("pid = %d, minor = %d\n", current->pid, minor);
-
-	priv = drm_alloc(sizeof(*priv), DRM_MEM_FILES);
-	if (!priv)
-		return -ENOMEM;
-
-	memset(priv, 0, sizeof(*priv));
-	filp->private_data = priv;
-	priv->uid = current->euid;
-	priv->pid = current->pid;
-	priv->minor = minor;
-	priv->head = drm_heads[minor];
-	priv->ioctl_count = 0;
-	priv->authenticated = capable(CAP_SYS_ADMIN);
-	priv->lock_count = 0;
-
-	if (dev->driver->open) {
-		ret = dev->driver->open(dev, priv);
-		if (ret < 0)
-			goto out_free;
-	}
-
-	down(&dev->struct_sem);
-	if (!dev->file_last) {
-		priv->next = NULL;
-		priv->prev = NULL;
-		dev->file_first = priv;
-		dev->file_last = priv;
-	} else {
-		priv->next = NULL;
-		priv->prev = dev->file_last;
-		dev->file_last->next = priv;
-		dev->file_last = priv;
-	}
-	up(&dev->struct_sem);
-
-#ifdef __alpha__
-	/*
-	 * Default the hose
-	 */
-	if (!dev->hose) {
-		struct pci_dev *pci_dev;
-		pci_dev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, NULL);
-		if (pci_dev) {
-			dev->hose = pci_dev->sysdata;
-			pci_dev_put(pci_dev);
-		}
-		if (!dev->hose) {
-			struct pci_bus *b = pci_bus_b(pci_root_buses.next);
-			if (b)
-				dev->hose = b->sysdata;
-		}
-	}
-#endif
-
-	return 0;
-      out_free:
-	drm_free(priv, sizeof(*priv), DRM_MEM_FILES);
-	filp->private_data = NULL;
-	return ret;
-}
-
-/** No-op. */
-int drm_fasync(int fd, struct file *filp, int on)
-{
-	drm_file_t *priv = filp->private_data;
-	drm_device_t *dev = priv->head->dev;
-	int retcode;
-
-	DRM_DEBUG("fd = %d, device = 0x%lx\n", fd,
-		  (long)old_encode_dev(priv->head->device));
-	retcode = fasync_helper(fd, filp, on, &dev->buf_async);
-	if (retcode < 0)
-		return retcode;
-	return 0;
-}
-
-EXPORT_SYMBOL(drm_fasync);
-
 /** No-op. */
 unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait)
 {
 	return 0;
 }
-
 EXPORT_SYMBOL(drm_poll);
diff --git a/drivers/char/drm/drm_lock.c b/drivers/char/drm/drm_lock.c
index b276ae8a663..f970dc36c18 100644
--- a/drivers/char/drm/drm_lock.c
+++ b/drivers/char/drm/drm_lock.c
@@ -104,6 +104,9 @@ int drm_lock(struct inode *inode, struct file *filp,
 	__set_current_state(TASK_RUNNING);
 	remove_wait_queue(&dev->lock.lock_queue, &entry);
 
+	DRM_DEBUG( "%d %s\n", lock.context, ret ? "interrupted" : "has lock" );
+	if (ret) return ret;
+
 	sigemptyset(&dev->sigmask);
 	sigaddset(&dev->sigmask, SIGSTOP);
 	sigaddset(&dev->sigmask, SIGTSTP);
@@ -116,21 +119,20 @@ int drm_lock(struct inode *inode, struct file *filp,
 	if (dev->driver->dma_ready && (lock.flags & _DRM_LOCK_READY))
 		dev->driver->dma_ready(dev);
 
-	if (dev->driver->dma_quiescent && (lock.flags & _DRM_LOCK_QUIESCENT))
-		return dev->driver->dma_quiescent(dev);
-
-	/* dev->driver->kernel_context_switch isn't used by any of the x86
-	 *  drivers but is used by the Sparc driver.
-	 */
+	if (dev->driver->dma_quiescent && (lock.flags & _DRM_LOCK_QUIESCENT)) {
+		if (dev->driver->dma_quiescent(dev)) {
+			DRM_DEBUG( "%d waiting for DMA quiescent\n", lock.context);
+			return DRM_ERR(EBUSY);
+		}
+	}
 
 	if (dev->driver->kernel_context_switch &&
 	    dev->last_context != lock.context) {
 		dev->driver->kernel_context_switch(dev, dev->last_context,
 						   lock.context);
 	}
-	DRM_DEBUG("%d %s\n", lock.context, ret ? "interrupted" : "has lock");
 
-	return ret;
+	return 0;
 }
 
 /**
diff --git a/drivers/char/drm/drm_stub.c b/drivers/char/drm/drm_stub.c
index b7f2a851f45..42d766359ca 100644
--- a/drivers/char/drm/drm_stub.c
+++ b/drivers/char/drm/drm_stub.c
@@ -128,43 +128,6 @@ static int drm_fill_in_dev(drm_device_t * dev, struct pci_dev *pdev,
 	return retcode;
 }
 
-/**
- * File \c open operation.
- *
- * \param inode device inode.
- * \param filp file pointer.
- *
- * Puts the dev->fops corresponding to the device minor number into
- * \p filp, call the \c open method, and restore the file operations.
- */
-int drm_stub_open(struct inode *inode, struct file *filp)
-{
-	drm_device_t *dev = NULL;
-	int minor = iminor(inode);
-	int err = -ENODEV;
-	struct file_operations *old_fops;
-
-	DRM_DEBUG("\n");
-
-	if (!((minor >= 0) && (minor < drm_cards_limit)))
-		return -ENODEV;
-
-	if (!drm_heads[minor])
-		return -ENODEV;
-
-	if (!(dev = drm_heads[minor]->dev))
-		return -ENODEV;
-
-	old_fops = filp->f_op;
-	filp->f_op = fops_get(&dev->driver->fops);
-	if (filp->f_op->open && (err = filp->f_op->open(inode, filp))) {
-		fops_put(filp->f_op);
-		filp->f_op = fops_get(old_fops);
-	}
-	fops_put(old_fops);
-
-	return err;
-}
 
 /**
  * Get a secondary minor number.
diff --git a/drivers/char/drm/r300_cmdbuf.c b/drivers/char/drm/r300_cmdbuf.c
index 3a1ac5f78b4..291dbf4c818 100644
--- a/drivers/char/drm/r300_cmdbuf.c
+++ b/drivers/char/drm/r300_cmdbuf.c
@@ -52,8 +52,8 @@ static const int r300_cliprect_cntl[4] = {
  * Emit up to R300_SIMULTANEOUS_CLIPRECTS cliprects from the given command
  * buffer, starting with index n.
  */
-static int r300_emit_cliprects(drm_radeon_private_t * dev_priv,
-			       drm_radeon_kcmd_buffer_t * cmdbuf, int n)
+static int r300_emit_cliprects(drm_radeon_private_t *dev_priv,
+			       drm_radeon_kcmd_buffer_t *cmdbuf, int n)
 {
 	drm_clip_rect_t box;
 	int nr;
@@ -216,6 +216,7 @@ void r300_init_reg_flags(void)
 	ADD_RANGE(R300_TX_UNK1_0, 16);
 	ADD_RANGE(R300_TX_SIZE_0, 16);
 	ADD_RANGE(R300_TX_FORMAT_0, 16);
+	ADD_RANGE(R300_TX_PITCH_0, 16);
 	/* Texture offset is dangerous and needs more checking */
 	ADD_RANGE_MARK(R300_TX_OFFSET_0, 16, MARK_CHECK_OFFSET);
 	ADD_RANGE(R300_TX_UNK4_0, 16);
@@ -242,7 +243,7 @@ static __inline__ int r300_check_range(unsigned reg, int count)
 
   /* we expect offsets passed to the framebuffer to be either within video memory or
      within AGP space */
-static __inline__ int r300_check_offset(drm_radeon_private_t * dev_priv,
+static __inline__ int r300_check_offset(drm_radeon_private_t *dev_priv,
 					u32 offset)
 {
 	/* we realy want to check against end of video aperture
@@ -317,8 +318,8 @@ static __inline__ int r300_emit_carefully_checked_packet0(drm_radeon_private_t *
  *
  * Note that checks are performed on contents and addresses of the registers
  */
-static __inline__ int r300_emit_packet0(drm_radeon_private_t * dev_priv,
-					drm_radeon_kcmd_buffer_t * cmdbuf,
+static __inline__ int r300_emit_packet0(drm_radeon_private_t *dev_priv,
+					drm_radeon_kcmd_buffer_t *cmdbuf,
 					drm_r300_cmd_header_t header)
 {
 	int reg;
@@ -363,8 +364,8 @@ static __inline__ int r300_emit_packet0(drm_radeon_private_t * dev_priv,
  * the graphics card.
  * Called by r300_do_cp_cmdbuf.
  */
-static __inline__ int r300_emit_vpu(drm_radeon_private_t * dev_priv,
-				    drm_radeon_kcmd_buffer_t * cmdbuf,
+static __inline__ int r300_emit_vpu(drm_radeon_private_t *dev_priv,
+				    drm_radeon_kcmd_buffer_t *cmdbuf,
 				    drm_r300_cmd_header_t header)
 {
 	int sz;
@@ -400,8 +401,8 @@ static __inline__ int r300_emit_vpu(drm_radeon_private_t * dev_priv,
  * Emit a clear packet from userspace.
  * Called by r300_emit_packet3.
  */
-static __inline__ int r300_emit_clear(drm_radeon_private_t * dev_priv,
-				      drm_radeon_kcmd_buffer_t * cmdbuf)
+static __inline__ int r300_emit_clear(drm_radeon_private_t *dev_priv,
+				      drm_radeon_kcmd_buffer_t *cmdbuf)
 {
 	RING_LOCALS;
 
@@ -421,8 +422,8 @@ static __inline__ int r300_emit_clear(drm_radeon_private_t * dev_priv,
 	return 0;
 }
 
-static __inline__ int r300_emit_3d_load_vbpntr(drm_radeon_private_t * dev_priv,
-					       drm_radeon_kcmd_buffer_t * cmdbuf,
+static __inline__ int r300_emit_3d_load_vbpntr(drm_radeon_private_t *dev_priv,
+					       drm_radeon_kcmd_buffer_t *cmdbuf,
 					       u32 header)
 {
 	int count, i, k;
@@ -489,8 +490,8 @@ static __inline__ int r300_emit_3d_load_vbpntr(drm_radeon_private_t * dev_priv,
 	return 0;
 }
 
-static __inline__ int r300_emit_raw_packet3(drm_radeon_private_t * dev_priv,
-					    drm_radeon_kcmd_buffer_t * cmdbuf)
+static __inline__ int r300_emit_raw_packet3(drm_radeon_private_t *dev_priv,
+					    drm_radeon_kcmd_buffer_t *cmdbuf)
 {
 	u32 header;
 	int count;
@@ -554,8 +555,8 @@ static __inline__ int r300_emit_raw_packet3(drm_radeon_private_t * dev_priv,
  * Emit a rendering packet3 from userspace.
  * Called by r300_do_cp_cmdbuf.
  */
-static __inline__ int r300_emit_packet3(drm_radeon_private_t * dev_priv,
-					drm_radeon_kcmd_buffer_t * cmdbuf,
+static __inline__ int r300_emit_packet3(drm_radeon_private_t *dev_priv,
+					drm_radeon_kcmd_buffer_t *cmdbuf,
 					drm_r300_cmd_header_t header)
 {
 	int n;
@@ -623,7 +624,7 @@ static __inline__ int r300_emit_packet3(drm_radeon_private_t * dev_priv,
 /**
  * Emit the sequence to pacify R300.
  */
-static __inline__ void r300_pacify(drm_radeon_private_t * dev_priv)
+static __inline__ void r300_pacify(drm_radeon_private_t *dev_priv)
 {
 	RING_LOCALS;
 
@@ -657,9 +658,10 @@ static void r300_discard_buffer(drm_device_t * dev, drm_buf_t * buf)
  * commands on the DMA ring buffer.
  * Called by the ioctl handler function radeon_cp_cmdbuf.
  */
-int r300_do_cp_cmdbuf(drm_device_t * dev,
+int r300_do_cp_cmdbuf(drm_device_t *dev,
 		      DRMFILE filp,
-		      drm_file_t * filp_priv, drm_radeon_kcmd_buffer_t * cmdbuf)
+		      drm_file_t *filp_priv,
+		      drm_radeon_kcmd_buffer_t *cmdbuf)
 {
 	drm_radeon_private_t *dev_priv = dev->dev_private;
 	drm_device_dma_t *dma = dev->dma;
diff --git a/drivers/char/drm/r300_reg.h b/drivers/char/drm/r300_reg.h
index e5b73c00239..a0ed20e2522 100644
--- a/drivers/char/drm/r300_reg.h
+++ b/drivers/char/drm/r300_reg.h
@@ -797,6 +797,7 @@ I am fairly certain that they are correct unless stated otherwise in comments.
 
 #	define R300_TX_FORMAT_YUV_MODE		0x00800000
 
+#define R300_TX_PITCH_0			    0x4500
 #define R300_TX_OFFSET_0                    0x4540
 /* BEGIN: Guess from R200 */
 #       define R300_TXO_ENDIAN_NO_SWAP           (0 << 0)
diff --git a/drivers/char/drm/radeon_cp.c b/drivers/char/drm/radeon_cp.c
index eaa0e2b7c2f..915665c7fe7 100644
--- a/drivers/char/drm/radeon_cp.c
+++ b/drivers/char/drm/radeon_cp.c
@@ -824,7 +824,7 @@ static int RADEON_READ_PLL(drm_device_t * dev, int addr)
 	return RADEON_READ(RADEON_CLOCK_CNTL_DATA);
 }
 
-static int RADEON_READ_PCIE(drm_radeon_private_t * dev_priv, int addr)
+static int RADEON_READ_PCIE(drm_radeon_private_t *dev_priv, int addr)
 {
 	RADEON_WRITE8(RADEON_PCIE_INDEX, addr & 0xff);
 	return RADEON_READ(RADEON_PCIE_DATA);
@@ -1125,7 +1125,7 @@ static void radeon_cp_init_ring_buffer(drm_device_t * dev,
 		     | (dev_priv->fb_location >> 16));
 
 #if __OS_HAS_AGP
-	if (!dev_priv->is_pci) {
+	if (dev_priv->flags & CHIP_IS_AGP) {
 		RADEON_WRITE(RADEON_MC_AGP_LOCATION,
 			     (((dev_priv->gart_vm_start - 1 +
 				dev_priv->gart_size) & 0xffff0000) |
@@ -1152,7 +1152,7 @@ static void radeon_cp_init_ring_buffer(drm_device_t * dev,
 	dev_priv->ring.tail = cur_read_ptr;
 
 #if __OS_HAS_AGP
-	if (!dev_priv->is_pci) {
+	if (dev_priv->flags & CHIP_IS_AGP) {
 		/* set RADEON_AGP_BASE here instead of relying on X from user space */
 		RADEON_WRITE(RADEON_AGP_BASE, (unsigned int)dev->agp->base);
 		RADEON_WRITE(RADEON_CP_RB_RPTR_ADDR,
@@ -1278,13 +1278,15 @@ static void radeon_set_pciegart(drm_radeon_private_t * dev_priv, int on)
 /* Enable or disable PCI GART on the chip */
 static void radeon_set_pcigart(drm_radeon_private_t * dev_priv, int on)
 {
-	u32 tmp = RADEON_READ(RADEON_AIC_CNTL);
+	u32 tmp;
 
 	if (dev_priv->flags & CHIP_IS_PCIE) {
 		radeon_set_pciegart(dev_priv, on);
 		return;
 	}
 
+ 	tmp = RADEON_READ(RADEON_AIC_CNTL);
+
 	if (on) {
 		RADEON_WRITE(RADEON_AIC_CNTL,
 			     tmp | RADEON_PCIGART_TRANSLATE_EN);
@@ -1311,14 +1313,18 @@ static void radeon_set_pcigart(drm_radeon_private_t * dev_priv, int on)
 
 static int radeon_do_init_cp(drm_device_t * dev, drm_radeon_init_t * init)
 {
-	drm_radeon_private_t *dev_priv = dev->dev_private;;
+	drm_radeon_private_t *dev_priv = dev->dev_private;
+
 	DRM_DEBUG("\n");
 
-	dev_priv->is_pci = init->is_pci;
+	if (init->is_pci && (dev_priv->flags & CHIP_IS_AGP))
+	{
+		DRM_DEBUG("Forcing AGP card to PCI mode\n");
+		dev_priv->flags &= ~CHIP_IS_AGP;
+	}
 
-	if (dev_priv->is_pci && !dev->sg) {
+	if ((!(dev_priv->flags & CHIP_IS_AGP)) && !dev->sg) {
 		DRM_ERROR("PCI GART memory not allocated!\n");
-		dev->dev_private = (void *)dev_priv;
 		radeon_do_cleanup_cp(dev);
 		return DRM_ERR(EINVAL);
 	}
@@ -1327,12 +1333,11 @@ static int radeon_do_init_cp(drm_device_t * dev, drm_radeon_init_t * init)
 	if (dev_priv->usec_timeout < 1 ||
 	    dev_priv->usec_timeout > RADEON_MAX_USEC_TIMEOUT) {
 		DRM_DEBUG("TIMEOUT problem!\n");
-		dev->dev_private = (void *)dev_priv;
 		radeon_do_cleanup_cp(dev);
 		return DRM_ERR(EINVAL);
 	}
 
-	switch (init->func) {
+	switch(init->func) {
 	case RADEON_INIT_R200_CP:
 		dev_priv->microcode_version = UCODE_R200;
 		break;
@@ -1353,7 +1358,6 @@ static int radeon_do_init_cp(drm_device_t * dev, drm_radeon_init_t * init)
 	if ((init->cp_mode != RADEON_CSQ_PRIBM_INDDIS) &&
 	    (init->cp_mode != RADEON_CSQ_PRIBM_INDBM)) {
 		DRM_DEBUG("BAD cp_mode (%x)!\n", init->cp_mode);
-		dev->dev_private = (void *)dev_priv;
 		radeon_do_cleanup_cp(dev);