summaryrefslogtreecommitdiff
path: root/linux-core/drm_ioctl.c
diff options
context:
space:
mode:
Diffstat (limited to 'linux-core/drm_ioctl.c')
-rw-r--r--linux-core/drm_ioctl.c351
1 files changed, 0 insertions, 351 deletions
diff --git a/linux-core/drm_ioctl.c b/linux-core/drm_ioctl.c
deleted file mode 100644
index 3df163db..00000000
--- a/linux-core/drm_ioctl.c
+++ /dev/null
@@ -1,351 +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 -EBUSY;
-
- 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("buffer overflow");
-
- 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;
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-26 02:15:16 +0000