/**
- * \file drm_ioctl.h
+ * \file drm_ioctl.c
* IOCTL processing for DRM
*
* \author Rickard E. (Rik) Faith <faith@valinux.com>
/**
* Get the bus id.
- *
+ *
* \param inode device inode.
* \param filp file pointer.
* \param cmd command.
* 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;
/**
* Set the bus id.
- *
+ *
* \param inode device inode.
* \param filp file pointer.
* \param cmd command.
* 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.
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)
{
+ int len;
+
if (dev->unique != NULL)
return EBUSY;
- dev->unique_len = 20;
+ dev->unique_len = 40;
dev->unique = drm_alloc(dev->unique_len + 1, DRM_MEM_DRIVER);
if (dev->unique == NULL)
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);
+ len = snprintf(dev->unique, dev->unique_len, "pci:%04x:%02x:%02x.%d",
+ dev->pci_domain, dev->pci_bus, dev->pci_slot, dev->pci_func);
+
+ if (len > dev->unique_len)
+ DRM_ERROR("Unique buffer overflowed\n");
- 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.
*
* \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;
idx = map.offset;
- down(&dev->struct_sem);
+ mutex_lock(&dev->struct_mutex);
if (idx < 0) {
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
return -EINVAL;
}
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) {
- up(&dev->struct_sem);
+ if (!r_list || !r_list->map) {
+ mutex_unlock(&dev->struct_mutex);
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(argp, &map, sizeof(map))) return -EFAULT;
+ 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;
+ mutex_unlock(&dev->struct_mutex);
+
+ if (copy_to_user(argp, &map, sizeof(map)))
+ return -EFAULT;
return 0;
}
* \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_client_t __user *argp = (void __user *)arg;
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->head->dev;
+ drm_client_t __user *argp = (drm_client_t __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)
- ;
+ mutex_lock(&dev->struct_mutex);
+ for (i = 0, pt = dev->file_first; i < idx && pt; i++, pt = pt->next) ;
if (!pt) {
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
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;
- up(&dev->struct_sem);
+ client.iocs = pt->ioctl_count;
+ mutex_unlock(&dev->struct_mutex);
- if (copy_to_user((drm_client_t __user *)arg, &client, sizeof(client)))
+ if (copy_to_user(argp, &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);
+
+ mutex_lock(&dev->struct_mutex);
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);
+ mutex_unlock(&dev->struct_mutex);
- 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;
}
drm_set_version_t retv;
int if_version;
drm_set_version_t __user *argp = (void __user *)data;
- drm_version_t version;
DRM_COPY_FROM_USER_IOCTL(sv, argp, sizeof(sv));
- memset(&version, 0, sizeof(version));
-
- dev->driver->version(&version);
retv.drm_di_major = DRM_IF_MAJOR;
retv.drm_di_minor = DRM_IF_MINOR;
- retv.drm_dd_major = version.version_major;
- retv.drm_dd_minor = version.version_minor;
+ retv.drm_dd_major = dev->driver->major;
+ retv.drm_dd_minor = dev->driver->minor;
DRM_COPY_TO_USER_IOCTL(argp, retv, sizeof(sv));
if (sv.drm_di_major != DRM_IF_MAJOR ||
sv.drm_di_minor < 0 || sv.drm_di_minor > DRM_IF_MINOR)
return EINVAL;
- if_version = DRM_IF_VERSION(sv.drm_di_major, sv.drm_dd_minor);
+ if_version = DRM_IF_VERSION(sv.drm_di_major, sv.drm_di_minor);
dev->if_version = DRM_MAX(if_version, dev->if_version);
if (sv.drm_di_minor >= 1) {
/*
}
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)
+ if (sv.drm_dd_major != dev->driver->major ||
+ sv.drm_dd_minor < 0
+ || sv.drm_dd_minor > dev->driver->minor)
return EINVAL;
if (dev->driver->set_version)
/** 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;
git://git.onelab.eu / linux-2.6.git / blobdiff