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path: root/drivers/char/drm/drm_ioctl.c
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Diffstat (limited to 'drivers/char/drm/drm_ioctl.c')
-rw-r--r--drivers/char/drm/drm_ioctl.c168
1 files changed, 86 insertions, 82 deletions
diff --git a/drivers/char/drm/drm_ioctl.c b/drivers/char/drm/drm_ioctl.c
index d2ed3ba5aca..9b0feba6b06 100644
--- a/drivers/char/drm/drm_ioctl.c
+++ b/drivers/char/drm/drm_ioctl.c
@@ -1,5 +1,5 @@
/**
- * \file drm_ioctl.h
+ * \file drm_ioctl.c
* IOCTL processing for DRM
*
* \author Rickard E. (Rik) Faith <faith@valinux.com>
@@ -40,7 +40,7 @@
/**
* Get the bus id.
- *
+ *
* \param inode device inode.
* \param filp file pointer.
* \param cmd command.
@@ -50,12 +50,12 @@
* Copies the bus id from drm_device::unique into user space.
*/
int drm_getunique(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg)
+ unsigned int cmd, unsigned long arg)
{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->head->dev;
- drm_unique_t __user *argp = (void __user *)arg;
- drm_unique_t u;
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->head->dev;
+ drm_unique_t __user *argp = (void __user *)arg;
+ drm_unique_t u;
if (copy_from_user(&u, argp, sizeof(u)))
return -EFAULT;
@@ -71,7 +71,7 @@ int drm_getunique(struct inode *inode, struct file *filp,
/**
* Set the bus id.
- *
+ *
* \param inode device inode.
* \param filp file pointer.
* \param cmd command.
@@ -84,34 +84,39 @@ int drm_getunique(struct inode *inode, struct file *filp,
* version 1.1 or greater.
*/
int drm_setunique(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg)
+ unsigned int cmd, unsigned long arg)
{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->head->dev;
- drm_unique_t u;
- int domain, bus, slot, func, ret;
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->head->dev;
+ drm_unique_t u;
+ int domain, bus, slot, func, ret;
- if (dev->unique_len || dev->unique) return -EBUSY;
+ if (dev->unique_len || dev->unique)
+ return -EBUSY;
- if (copy_from_user(&u, (drm_unique_t __user *)arg, sizeof(u)))
+ if (copy_from_user(&u, (drm_unique_t __user *) arg, sizeof(u)))
return -EFAULT;
- if (!u.unique_len || u.unique_len > 1024) return -EINVAL;
+ if (!u.unique_len || u.unique_len > 1024)
+ return -EINVAL;
dev->unique_len = u.unique_len;
- dev->unique = drm_alloc(u.unique_len + 1, DRM_MEM_DRIVER);
- if(!dev->unique) return -ENOMEM;
+ dev->unique = drm_alloc(u.unique_len + 1, DRM_MEM_DRIVER);
+ if (!dev->unique)
+ return -ENOMEM;
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->driver->pci_driver.name) + strlen(dev->unique) + 2,
- DRM_MEM_DRIVER);
+ dev->devname =
+ drm_alloc(strlen(dev->driver->pci_driver.name) +
+ strlen(dev->unique) + 2, DRM_MEM_DRIVER);
if (!dev->devname)
return -ENOMEM;
- sprintf(dev->devname, "%s@%s", dev->driver->pci_driver.name, dev->unique);
+ sprintf(dev->devname, "%s@%s", dev->driver->pci_driver.name,
+ dev->unique);
/* Return error if the busid submitted doesn't match the device's actual
* busid.
@@ -121,18 +126,16 @@ int drm_setunique(struct inode *inode, struct file *filp,
return DRM_ERR(EINVAL);
domain = bus >> 8;
bus &= 0xff;
-
+
if ((domain != dev->pci_domain) ||
(bus != dev->pci_bus) ||
- (slot != dev->pci_slot) ||
- (func != dev->pci_func))
+ (slot != dev->pci_slot) || (func != dev->pci_func))
return -EINVAL;
return 0;
}
-static int
-drm_set_busid(drm_device_t *dev)
+static int drm_set_busid(drm_device_t * dev)
{
if (dev->unique != NULL)
return EBUSY;
@@ -143,19 +146,20 @@ drm_set_busid(drm_device_t *dev)
return ENOMEM;
snprintf(dev->unique, dev->unique_len, "pci:%04x:%02x:%02x.%d",
- dev->pci_domain, dev->pci_bus, dev->pci_slot, dev->pci_func);
+ dev->pci_domain, dev->pci_bus, dev->pci_slot, dev->pci_func);
- dev->devname = drm_alloc(strlen(dev->driver->pci_driver.name) + dev->unique_len + 2,
- DRM_MEM_DRIVER);
+ dev->devname =
+ drm_alloc(strlen(dev->driver->pci_driver.name) + dev->unique_len +
+ 2, DRM_MEM_DRIVER);
if (dev->devname == NULL)
return ENOMEM;
- sprintf(dev->devname, "%s@%s", dev->driver->pci_driver.name, dev->unique);
+ sprintf(dev->devname, "%s@%s", dev->driver->pci_driver.name,
+ dev->unique);
return 0;
}
-
/**
* Get a mapping information.
*
@@ -163,23 +167,23 @@ drm_set_busid(drm_device_t *dev)
* \param filp file pointer.
* \param cmd command.
* \param arg user argument, pointing to a drm_map structure.
- *
+ *
* \return zero on success or a negative number on failure.
*
* Searches for the mapping with the specified offset and copies its information
* into userspace
*/
-int drm_getmap( struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg )
+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->head->dev;
- drm_map_t __user *argp = (void __user *)arg;
- drm_map_t map;
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->head->dev;
+ drm_map_t __user *argp = (void __user *)arg;
+ drm_map_t map;
drm_map_list_t *r_list = NULL;
struct list_head *list;
- int idx;
- int i;
+ int idx;
+ int i;
if (copy_from_user(&map, argp, sizeof(map)))
return -EFAULT;
@@ -193,26 +197,27 @@ int drm_getmap( struct inode *inode, struct file *filp,
i = 0;
list_for_each(list, &dev->maplist->head) {
- if(i == idx) {
+ if (i == idx) {
r_list = list_entry(list, drm_map_list_t, head);
break;
}
i++;
}
- if(!r_list || !r_list->map) {
+ 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 = (void *)(unsigned long) r_list->user_token;
- map.mtrr = r_list->map->mtrr;
+ map.size = r_list->map->size;
+ map.type = r_list->map->type;
+ map.flags = r_list->map->flags;
+ map.handle = (void *)(unsigned long)r_list->user_token;
+ map.mtrr = r_list->map->mtrr;
up(&dev->struct_sem);
- if (copy_to_user(argp, &map, sizeof(map))) return -EFAULT;
+ if (copy_to_user(argp, &map, sizeof(map)))
+ return -EFAULT;
return 0;
}
@@ -223,83 +228,81 @@ int drm_getmap( struct inode *inode, struct file *filp,
* \param filp file pointer.
* \param cmd command.
* \param arg user argument, pointing to a drm_client structure.
- *
+ *
* \return zero on success or a negative number on failure.
*
* Searches for the client with the specified index and copies its information
* into userspace
*/
-int drm_getclient( struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg )
+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->head->dev;
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->head->dev;
drm_client_t __user *argp = (void __user *)arg;
drm_client_t client;
- drm_file_t *pt;
- int idx;
- int i;
+ drm_file_t *pt;
+ int idx;
+ int i;
if (copy_from_user(&client, argp, 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)
- ;
+ 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.auth = pt->authenticated;
+ client.pid = pt->pid;
+ client.uid = pt->uid;
client.magic = pt->magic;
- client.iocs = pt->ioctl_count;
+ client.iocs = pt->ioctl_count;
up(&dev->struct_sem);
- if (copy_to_user((drm_client_t __user *)arg, &client, sizeof(client)))
+ if (copy_to_user((drm_client_t __user *) arg, &client, sizeof(client)))
return -EFAULT;
return 0;
}
-/**
- * Get statistics information.
- *
+/**
+ * Get statistics information.
+ *
* \param inode device inode.
* \param filp file pointer.
* \param cmd command.
* \param arg user argument, pointing to a drm_stats structure.
- *
+ *
* \return zero on success or a negative number on failure.
*/
-int drm_getstats( struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg )
+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->head->dev;
- drm_stats_t stats;
- int i;
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->head->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
+ = (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.data[i].type = dev->types[i];
}
-
+
stats.count = dev->counters;
up(&dev->struct_sem);
- if (copy_to_user((drm_stats_t __user *)arg, &stats, sizeof(stats)))
+ if (copy_to_user((drm_stats_t __user *) arg, &stats, sizeof(stats)))
return -EFAULT;
return 0;
}
@@ -352,7 +355,8 @@ int drm_setversion(DRM_IOCTL_ARGS)
if (sv.drm_dd_major != -1) {
if (sv.drm_dd_major != version.version_major ||
- sv.drm_dd_minor < 0 || sv.drm_dd_minor > version.version_minor)
+ sv.drm_dd_minor < 0
+ || sv.drm_dd_minor > version.version_minor)
return EINVAL;
if (dev->driver->set_version)
@@ -363,7 +367,7 @@ int drm_setversion(DRM_IOCTL_ARGS)
/** No-op ioctl. */
int drm_noop(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
+ unsigned long arg)
{
DRM_DEBUG("\n");
return 0;