diff options
Diffstat (limited to 'drivers/char/drm/drm_ioctl.c')
-rw-r--r-- | drivers/char/drm/drm_ioctl.c | 352 |
1 files changed, 0 insertions, 352 deletions
diff --git a/drivers/char/drm/drm_ioctl.c b/drivers/char/drm/drm_ioctl.c deleted file mode 100644 index 16829fb..0000000 --- a/drivers/char/drm/drm_ioctl.c +++ /dev/null @@ -1,352 +0,0 @@ -/** - * \file drm_ioctl.c - * IOCTL processing for DRM - * - * \author Rickard E. (Rik) Faith <faith@valinux.com> - * \author Gareth Hughes <gareth@valinux.com> - */ - -/* - * 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. - */ - -#include "drmP.h" -#include "drm_core.h" - -#include "linux/pci.h" - -/** - * Get the bus id. - * - * \param inode device inode. - * \param file_priv DRM file private. - * \param cmd command. - * \param arg user argument, pointing to a drm_unique structure. - * \return zero on success or a negative number on failure. - * - * Copies the bus id from drm_device::unique into user space. - */ -int drm_getunique(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_unique *u = data; - - 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; - - return 0; -} - -/** - * Set the bus id. - * - * \param inode device inode. - * \param file_priv DRM file private. - * \param cmd command. - * \param arg user argument, pointing to a drm_unique structure. - * \return zero on success or a negative number on failure. - * - * Copies the bus id from userspace into drm_device::unique, and verifies that - * it matches the device this DRM is attached to (EINVAL otherwise). Deprecated - * in interface version 1.1 and will return EBUSY when setversion has requested - * version 1.1 or greater. - */ -int drm_setunique(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_unique *u = data; - int domain, bus, slot, func, ret; - - if (dev->unique_len || dev->unique) - return -EBUSY; - - 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; - 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); - if (!dev->devname) - return -ENOMEM; - - 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. - */ - ret = sscanf(dev->unique, "PCI:%d:%d:%d", &bus, &slot, &func); - if (ret != 3) - return -EINVAL; - domain = bus >> 8; - bus &= 0xff; - - if ((domain != drm_get_pci_domain(dev)) || - (bus != dev->pdev->bus->number) || - (slot != PCI_SLOT(dev->pdev->devfn)) || - (func != PCI_FUNC(dev->pdev->devfn))) - return -EINVAL; - - return 0; -} - -static int drm_set_busid(struct drm_device * dev) -{ - int len; - - if (dev->unique != NULL) - return 0; - - dev->unique_len = 40; - dev->unique = drm_alloc(dev->unique_len + 1, DRM_MEM_DRIVER); - if (dev->unique == NULL) - return -ENOMEM; - - len = snprintf(dev->unique, dev->unique_len, "pci:%04x:%02x:%02x.%d", - drm_get_pci_domain(dev), dev->pdev->bus->number, - PCI_SLOT(dev->pdev->devfn), - PCI_FUNC(dev->pdev->devfn)); - - 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); - if (dev->devname == NULL) - return -ENOMEM; - - sprintf(dev->devname, "%s@%s", dev->driver->pci_driver.name, - dev->unique); - - return 0; -} - -/** - * Get a mapping information. - * - * \param inode device inode. - * \param file_priv DRM file private. - * \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 drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_map *map = data; - struct drm_map_list *r_list = NULL; - struct list_head *list; - int idx; - int i; - - idx = map->offset; - - mutex_lock(&dev->struct_mutex); - if (idx < 0) { - mutex_unlock(&dev->struct_mutex); - return -EINVAL; - } - - i = 0; - list_for_each(list, &dev->maplist) { - if (i == idx) { - r_list = list_entry(list, struct drm_map_list, head); - break; - } - i++; - } - 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 = (void *)(unsigned long) r_list->user_token; - map->mtrr = r_list->map->mtrr; - mutex_unlock(&dev->struct_mutex); - - return 0; -} - -/** - * Get client information. - * - * \param inode device inode. - * \param file_priv DRM file private. - * \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 drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_client *client = data; - struct drm_file *pt; - int idx; - int i; - - idx = client->idx; - mutex_lock(&dev->struct_mutex); - - i = 0; - list_for_each_entry(pt, &dev->filelist, lhead) { - if (i++ >= idx) { - client->auth = pt->authenticated; - client->pid = pt->pid; - client->uid = pt->uid; - client->magic = pt->magic; - client->iocs = pt->ioctl_count; - mutex_unlock(&dev->struct_mutex); - - return 0; - } - } - mutex_unlock(&dev->struct_mutex); - - return -EINVAL; -} - -/** - * Get statistics information. - * - * \param inode device inode. - * \param file_priv DRM file private. - * \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 drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_stats *stats = data; - int i; - - memset(stats, 0, sizeof(*stats)); - - 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 - stats->data[i].value = atomic_read(&dev->counts[i]); - stats->data[i].type = dev->types[i]; - } - - stats->count = dev->counters; - - mutex_unlock(&dev->struct_mutex); - - return 0; -} - -/** - * Setversion ioctl. - * - * \param inode device inode. - * \param file_priv DRM file private. - * \param cmd command. - * \param arg user argument, pointing to a drm_lock structure. - * \return zero on success or negative number on failure. - * - * Sets the requested interface version - */ -int drm_setversion(struct drm_device *dev, void *data, struct drm_file *file_priv) -{ - struct drm_set_version *sv = data; - int if_version, retcode = 0; - - if (sv->drm_di_major != -1) { - if (sv->drm_di_major != DRM_IF_MAJOR || - sv->drm_di_minor < 0 || sv->drm_di_minor > DRM_IF_MINOR) { - retcode = -EINVAL; - goto done; - } - if_version = DRM_IF_VERSION(sv->drm_di_major, - sv->drm_di_minor); - dev->if_version = max(if_version, dev->if_version); - if (sv->drm_di_minor >= 1) { - /* - * Version 1.1 includes tying of DRM to specific device - */ - drm_set_busid(dev); - } - } - - if (sv->drm_dd_major != -1) { - if (sv->drm_dd_major != dev->driver->major || - sv->drm_dd_minor < 0 || sv->drm_dd_minor > - dev->driver->minor) { - retcode = -EINVAL; - goto done; - } - - if (dev->driver->set_version) - dev->driver->set_version(dev, sv); - } - -done: - sv->drm_di_major = DRM_IF_MAJOR; - sv->drm_di_minor = DRM_IF_MINOR; - sv->drm_dd_major = dev->driver->major; - sv->drm_dd_minor = dev->driver->minor; - - return retcode; -} - -/** No-op ioctl. */ -int drm_noop(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - DRM_DEBUG("\n"); - return 0; -} |