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-rw-r--r--linux-core/drm_ioctl.c210
1 files changed, 210 insertions, 0 deletions
diff --git a/linux-core/drm_ioctl.c b/linux-core/drm_ioctl.c
new file mode 100644
index 00000000..2fba6b0c
--- /dev/null
+++ b/linux-core/drm_ioctl.c
@@ -0,0 +1,210 @@
+/* drm_ioctl.h -- IOCTL processing for DRM -*- linux-c -*-
+ * Created: Fri Jan 8 09:01:26 1999 by faith@valinux.com
+ *
+ * Copyright 1999 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.
+ *
+ * Authors:
+ * Rickard E. (Rik) Faith <faith@valinux.com>
+ * Gareth Hughes <gareth@valinux.com>
+ */
+
+#define __NO_VERSION__
+#include "drmP.h"
+
+int DRM(irq_busid)(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ drm_irq_busid_t p;
+ struct pci_dev *dev;
+
+ if (copy_from_user(&p, (drm_irq_busid_t *)arg, sizeof(p)))
+ return -EFAULT;
+ dev = pci_find_slot(p.busnum, PCI_DEVFN(p.devnum, p.funcnum));
+ if (dev) p.irq = dev->irq;
+ else p.irq = 0;
+ DRM_DEBUG("%d:%d:%d => IRQ %d\n",
+ p.busnum, p.devnum, p.funcnum, p.irq);
+ if (copy_to_user((drm_irq_busid_t *)arg, &p, sizeof(p)))
+ return -EFAULT;
+ return 0;
+}
+
+int DRM(getunique)(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_unique_t u;
+
+ if (copy_from_user(&u, (drm_unique_t *)arg, sizeof(u)))
+ return -EFAULT;
+ if (u.unique_len >= dev->unique_len) {
+ if (copy_to_user(u.unique, dev->unique, dev->unique_len))
+ return -EFAULT;
+ }
+ u.unique_len = dev->unique_len;
+ if (copy_to_user((drm_unique_t *)arg, &u, sizeof(u)))
+ return -EFAULT;
+ return 0;
+}
+
+int DRM(setunique)(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_unique_t u;
+
+ if (dev->unique_len || dev->unique)
+ return -EBUSY;
+
+ if (copy_from_user(&u, (drm_unique_t *)arg, sizeof(u)))
+ return -EFAULT;
+
+ if (!u.unique_len)
+ return -EINVAL;
+
+ dev->unique_len = u.unique_len;
+ dev->unique = DRM(alloc)(u.unique_len + 1, DRM_MEM_DRIVER);
+ if (copy_from_user(dev->unique, u.unique, dev->unique_len))
+ return -EFAULT;
+ dev->unique[dev->unique_len] = '\0';
+
+ dev->devname = DRM(alloc)(strlen(dev->name) + strlen(dev->unique) + 2,
+ DRM_MEM_DRIVER);
+ sprintf(dev->devname, "%s@%s", dev->name, dev->unique);
+
+ return 0;
+}
+
+
+int DRM(getmap)( 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_list_t *r_list = NULL;
+ struct list_head *list;
+ int idx;
+ int i;
+
+ if (copy_from_user(&map, (drm_map_t *)arg, sizeof(map)))
+ return -EFAULT;
+ idx = map.offset;
+
+ down(&dev->struct_sem);
+ if (idx < 0 || idx >= dev->map_count) {
+ up(&dev->struct_sem);
+ return -EINVAL;
+ }
+
+ i = 0;
+ list_for_each(list, &dev->maplist->head) {
+ if(i == idx) {
+ r_list = (drm_map_list_t *)list;
+ break;
+ }
+ i++;
+ }
+ if(!r_list || !r_list->map) {
+ up(&dev->struct_sem);
+ return -EINVAL;
+ }
+
+ map.offset = r_list->map->offset;
+ map.size = r_list->map->size;
+ map.type = r_list->map->type;
+ map.flags = r_list->map->flags;
+ map.handle = r_list->map->handle;
+ map.mtrr = r_list->map->mtrr;
+ up(&dev->struct_sem);
+
+ if (copy_to_user((drm_map_t *)arg, &map, sizeof(map))) return -EFAULT;
+ return 0;
+}
+
+int DRM(getclient)( 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_client_t client;
+ drm_file_t *pt;
+ int idx;
+ int i;
+
+ if (copy_from_user(&client, (drm_client_t *)arg, sizeof(client)))
+ return -EFAULT;
+ idx = client.idx;
+ down(&dev->struct_sem);
+ for (i = 0, pt = dev->file_first; i < idx && pt; i++, pt = pt->next)
+ ;
+
+ if (!pt) {
+ up(&dev->struct_sem);
+ return -EINVAL;
+ }
+ client.auth = pt->authenticated;
+ client.pid = pt->pid;
+ client.uid = pt->uid;
+ client.magic = pt->magic;
+ client.iocs = pt->ioctl_count;
+ up(&dev->struct_sem);
+
+ if (copy_to_user((drm_client_t *)arg, &client, sizeof(client)))
+ return -EFAULT;
+ return 0;
+}
+
+int DRM(getstats)( 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_stats_t stats;
+ int i;
+
+ memset(&stats, 0, sizeof(stats));
+
+ down(&dev->struct_sem);
+
+ for (i = 0; i < dev->counters; i++) {
+ if (dev->types[i] == _DRM_STAT_LOCK)
+ stats.data[i].value
+ = (dev->lock.hw_lock
+ ? dev->lock.hw_lock->lock : 0);
+ else
+ stats.data[i].value = atomic_read(&dev->counts[i]);
+ stats.data[i].type = dev->types[i];
+ }
+
+ stats.count = dev->counters;
+
+ up(&dev->struct_sem);
+
+ if (copy_to_user((drm_stats_t *)arg, &stats, sizeof(stats)))
+ return -EFAULT;
+ return 0;
+}
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