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path: root/drivers/char/drm/drm_drv.c
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Diffstat (limited to 'drivers/char/drm/drm_drv.c')
-rw-r--r--drivers/char/drm/drm_drv.c540
1 files changed, 0 insertions, 540 deletions
diff --git a/drivers/char/drm/drm_drv.c b/drivers/char/drm/drm_drv.c
deleted file mode 100644
index 564138714bb..00000000000
--- a/drivers/char/drm/drm_drv.c
+++ /dev/null
@@ -1,540 +0,0 @@
-/**
- * \file drm_drv.c
- * Generic driver template
- *
- * \author Rickard E. (Rik) Faith <faith@valinux.com>
- * \author Gareth Hughes <gareth@valinux.com>
- *
- * To use this template, you must at least define the following (samples
- * given for the MGA driver):
- *
- * \code
- * #define DRIVER_AUTHOR "VA Linux Systems, Inc."
- *
- * #define DRIVER_NAME "mga"
- * #define DRIVER_DESC "Matrox G200/G400"
- * #define DRIVER_DATE "20001127"
- *
- * #define drm_x mga_##x
- * \endcode
- */
-
-/*
- * Created: Thu Nov 23 03:10:50 2000 by gareth@valinux.com
- *
- * Copyright 1999, 2000 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"
-
-static int drm_version(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
-
-/** Ioctl table */
-static struct drm_ioctl_desc drm_ioctls[] = {
- DRM_IOCTL_DEF(DRM_IOCTL_VERSION, drm_version, 0),
- DRM_IOCTL_DEF(DRM_IOCTL_GET_UNIQUE, drm_getunique, 0),
- DRM_IOCTL_DEF(DRM_IOCTL_GET_MAGIC, drm_getmagic, 0),
- DRM_IOCTL_DEF(DRM_IOCTL_IRQ_BUSID, drm_irq_by_busid, DRM_MASTER|DRM_ROOT_ONLY),
- DRM_IOCTL_DEF(DRM_IOCTL_GET_MAP, drm_getmap, 0),
- DRM_IOCTL_DEF(DRM_IOCTL_GET_CLIENT, drm_getclient, 0),
- DRM_IOCTL_DEF(DRM_IOCTL_GET_STATS, drm_getstats, 0),
- DRM_IOCTL_DEF(DRM_IOCTL_SET_VERSION, drm_setversion, DRM_MASTER|DRM_ROOT_ONLY),
-
- DRM_IOCTL_DEF(DRM_IOCTL_SET_UNIQUE, drm_setunique, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
- DRM_IOCTL_DEF(DRM_IOCTL_BLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
- DRM_IOCTL_DEF(DRM_IOCTL_UNBLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
- DRM_IOCTL_DEF(DRM_IOCTL_AUTH_MAGIC, drm_authmagic, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
-
- DRM_IOCTL_DEF(DRM_IOCTL_ADD_MAP, drm_addmap_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
- DRM_IOCTL_DEF(DRM_IOCTL_RM_MAP, drm_rmmap_ioctl, DRM_AUTH),
-
- DRM_IOCTL_DEF(DRM_IOCTL_SET_SAREA_CTX, drm_setsareactx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
- DRM_IOCTL_DEF(DRM_IOCTL_GET_SAREA_CTX, drm_getsareactx, DRM_AUTH),
-
- DRM_IOCTL_DEF(DRM_IOCTL_ADD_CTX, drm_addctx, DRM_AUTH|DRM_ROOT_ONLY),
- DRM_IOCTL_DEF(DRM_IOCTL_RM_CTX, drm_rmctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
- DRM_IOCTL_DEF(DRM_IOCTL_MOD_CTX, drm_modctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
- DRM_IOCTL_DEF(DRM_IOCTL_GET_CTX, drm_getctx, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_IOCTL_SWITCH_CTX, drm_switchctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
- DRM_IOCTL_DEF(DRM_IOCTL_NEW_CTX, drm_newctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
- DRM_IOCTL_DEF(DRM_IOCTL_RES_CTX, drm_resctx, DRM_AUTH),
-
- DRM_IOCTL_DEF(DRM_IOCTL_ADD_DRAW, drm_adddraw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
- DRM_IOCTL_DEF(DRM_IOCTL_RM_DRAW, drm_rmdraw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
-
- DRM_IOCTL_DEF(DRM_IOCTL_LOCK, drm_lock, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_IOCTL_UNLOCK, drm_unlock, DRM_AUTH),
-
- DRM_IOCTL_DEF(DRM_IOCTL_FINISH, drm_noop, DRM_AUTH),
-
- DRM_IOCTL_DEF(DRM_IOCTL_ADD_BUFS, drm_addbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
- DRM_IOCTL_DEF(DRM_IOCTL_MARK_BUFS, drm_markbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
- DRM_IOCTL_DEF(DRM_IOCTL_INFO_BUFS, drm_infobufs, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_IOCTL_MAP_BUFS, drm_mapbufs, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_IOCTL_FREE_BUFS, drm_freebufs, DRM_AUTH),
- /* The DRM_IOCTL_DMA ioctl should be defined by the driver. */
- DRM_IOCTL_DEF(DRM_IOCTL_DMA, NULL, DRM_AUTH),
-
- DRM_IOCTL_DEF(DRM_IOCTL_CONTROL, drm_control, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
-
-#if __OS_HAS_AGP
- DRM_IOCTL_DEF(DRM_IOCTL_AGP_ACQUIRE, drm_agp_acquire_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
- DRM_IOCTL_DEF(DRM_IOCTL_AGP_RELEASE, drm_agp_release_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
- DRM_IOCTL_DEF(DRM_IOCTL_AGP_ENABLE, drm_agp_enable_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
- DRM_IOCTL_DEF(DRM_IOCTL_AGP_INFO, drm_agp_info_ioctl, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_IOCTL_AGP_ALLOC, drm_agp_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
- DRM_IOCTL_DEF(DRM_IOCTL_AGP_FREE, drm_agp_free_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
- DRM_IOCTL_DEF(DRM_IOCTL_AGP_BIND, drm_agp_bind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
- DRM_IOCTL_DEF(DRM_IOCTL_AGP_UNBIND, drm_agp_unbind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
-#endif
-
- DRM_IOCTL_DEF(DRM_IOCTL_SG_ALLOC, drm_sg_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
- DRM_IOCTL_DEF(DRM_IOCTL_SG_FREE, drm_sg_free, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
-
- DRM_IOCTL_DEF(DRM_IOCTL_WAIT_VBLANK, drm_wait_vblank, 0),
-
- DRM_IOCTL_DEF(DRM_IOCTL_UPDATE_DRAW, drm_update_drawable_info, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
-};
-
-#define DRM_CORE_IOCTL_COUNT ARRAY_SIZE( drm_ioctls )
-
-/**
- * Take down the DRM device.
- *
- * \param dev DRM device structure.
- *
- * Frees every resource in \p dev.
- *
- * \sa drm_device
- */
-int drm_lastclose(struct drm_device * dev)
-{
- struct drm_magic_entry *pt, *next;
- struct drm_map_list *r_list, *list_t;
- struct drm_vma_entry *vma, *vma_temp;
- int i;
-
- DRM_DEBUG("\n");
-
- if (dev->driver->lastclose)
- dev->driver->lastclose(dev);
- DRM_DEBUG("driver lastclose completed\n");
-
- if (dev->unique) {
- drm_free(dev->unique, strlen(dev->unique) + 1, DRM_MEM_DRIVER);
- dev->unique = NULL;
- dev->unique_len = 0;
- }
-
- if (dev->irq_enabled)
- drm_irq_uninstall(dev);
-
- mutex_lock(&dev->struct_mutex);
-
- /* Free drawable information memory */
- drm_drawable_free_all(dev);
- del_timer(&dev->timer);
-
- /* Clear pid list */
- if (dev->magicfree.next) {
- list_for_each_entry_safe(pt, next, &dev->magicfree, head) {
- list_del(&pt->head);
- drm_ht_remove_item(&dev->magiclist, &pt->hash_item);
- drm_free(pt, sizeof(*pt), DRM_MEM_MAGIC);
- }
- drm_ht_remove(&dev->magiclist);
- }
-
- /* Clear AGP information */
- if (drm_core_has_AGP(dev) && dev->agp) {
- struct drm_agp_mem *entry, *tempe;
-
- /* Remove AGP resources, but leave dev->agp
- intact until drv_cleanup is called. */
- list_for_each_entry_safe(entry, tempe, &dev->agp->memory, head) {
- if (entry->bound)
- drm_unbind_agp(entry->memory);
- drm_free_agp(entry->memory, entry->pages);
- drm_free(entry, sizeof(*entry), DRM_MEM_AGPLISTS);
- }
- INIT_LIST_HEAD(&dev->agp->memory);
-
- if (dev->agp->acquired)
- drm_agp_release(dev);
-
- dev->agp->acquired = 0;
- dev->agp->enabled = 0;
- }
- if (drm_core_check_feature(dev, DRIVER_SG) && dev->sg) {
- drm_sg_cleanup(dev->sg);
- dev->sg = NULL;
- }
-
- /* Clear vma list (only built for debugging) */
- list_for_each_entry_safe(vma, vma_temp, &dev->vmalist, head) {
- list_del(&vma->head);
- drm_free(vma, sizeof(*vma), DRM_MEM_VMAS);
- }
-
- list_for_each_entry_safe(r_list, list_t, &dev->maplist, head) {
- if (!(r_list->map->flags & _DRM_DRIVER)) {
- drm_rmmap_locked(dev, r_list->map);
- r_list = NULL;
- }
- }
-
- if (drm_core_check_feature(dev, DRIVER_DMA_QUEUE) && dev->queuelist) {
- for (i = 0; i < dev->queue_count; i++) {
- if (dev->queuelist[i]) {
- drm_free(dev->queuelist[i],
- sizeof(*dev->queuelist[0]),
- DRM_MEM_QUEUES);
- dev->queuelist[i] = NULL;
- }
- }
- drm_free(dev->queuelist,
- dev->queue_slots * sizeof(*dev->queuelist),
- DRM_MEM_QUEUES);
- dev->queuelist = NULL;
- }
- dev->queue_count = 0;
-
- if (drm_core_check_feature(dev, DRIVER_HAVE_DMA))
- drm_dma_takedown(dev);
-
- if (dev->lock.hw_lock) {
- dev->sigdata.lock = dev->lock.hw_lock = NULL; /* SHM removed */
- dev->lock.file_priv = NULL;
- wake_up_interruptible(&dev->lock.lock_queue);
- }
- mutex_unlock(&dev->struct_mutex);
-
- DRM_DEBUG("lastclose completed\n");
- return 0;
-}
-
-/**
- * Module initialization. Called via init_module at module load time, or via
- * linux/init/main.c (this is not currently supported).
- *
- * \return zero on success or a negative number on failure.
- *
- * Initializes an array of drm_device structures, and attempts to
- * initialize all available devices, using consecutive minors, registering the
- * stubs and initializing the AGP device.
- *
- * Expands the \c DRIVER_PREINIT and \c DRIVER_POST_INIT macros before and
- * after the initialization for driver customization.
- */
-int drm_init(struct drm_driver *driver)
-{
- struct pci_dev *pdev = NULL;
- struct pci_device_id *pid;
- int i;
-
- DRM_DEBUG("\n");
-
- for (i = 0; driver->pci_driver.id_table[i].vendor != 0; i++) {
- pid = (struct pci_device_id *)&driver->pci_driver.id_table[i];
-
- pdev = NULL;
- /* pass back in pdev to account for multiple identical cards */
- while ((pdev =
- pci_get_subsys(pid->vendor, pid->device, pid->subvendor,
- pid->subdevice, pdev)) != NULL) {
- /* stealth mode requires a manual probe */
- pci_dev_get(pdev);
- drm_get_dev(pdev, pid, driver);
- }
- }
- return 0;
-}
-
-EXPORT_SYMBOL(drm_init);
-
-/**
- * Called via cleanup_module() at module unload time.
- *
- * Cleans up all DRM device, calling drm_lastclose().
- *
- * \sa drm_init
- */
-static void drm_cleanup(struct drm_device * dev)
-{
- DRM_DEBUG("\n");
-
- if (!dev) {
- DRM_ERROR("cleanup called no dev\n");
- return;
- }
-
- drm_lastclose(dev);
-
- if (drm_core_has_MTRR(dev) && drm_core_has_AGP(dev) &&
- dev->agp && dev->agp->agp_mtrr >= 0) {
- int retval;
- retval = mtrr_del(dev->agp->agp_mtrr,
- dev->agp->agp_info.aper_base,
- dev->agp->agp_info.aper_size * 1024 * 1024);
- DRM_DEBUG("mtrr_del=%d\n", retval);
- }
-
- if (drm_core_has_AGP(dev) && dev->agp) {
- drm_free(dev->agp, sizeof(*dev->agp), DRM_MEM_AGPLISTS);
- dev->agp = NULL;
- }
-
- if (dev->driver->unload)
- dev->driver->unload(dev);
-
- drm_ht_remove(&dev->map_hash);
- drm_ctxbitmap_cleanup(dev);
-
- drm_put_minor(&dev->primary);
- if (drm_put_dev(dev))
- DRM_ERROR("Cannot unload module\n");
-}
-
-int drm_minors_cleanup(int id, void *ptr, void *data)
-{
- struct drm_minor *minor = ptr;
- struct drm_device *dev;
- struct drm_driver *driver = data;
-
- dev = minor->dev;
- if (minor->dev->driver != driver)
- return 0;
-
- if (minor->type != DRM_MINOR_LEGACY)
- return 0;
-
- if (dev)
- pci_dev_put(dev->pdev);
- drm_cleanup(dev);
- return 1;
-}
-
-void drm_exit(struct drm_driver *driver)
-{
- DRM_DEBUG("\n");
-
- idr_for_each(&drm_minors_idr, &drm_minors_cleanup, driver);
-
- DRM_INFO("Module unloaded\n");
-}
-
-EXPORT_SYMBOL(drm_exit);
-
-/** File operations structure */
-static const struct file_operations drm_stub_fops = {
- .owner = THIS_MODULE,
- .open = drm_stub_open
-};
-
-static int __init drm_core_init(void)
-{
- int ret = -ENOMEM;
-
- idr_init(&drm_minors_idr);
-
- if (register_chrdev(DRM_MAJOR, "drm", &drm_stub_fops))
- goto err_p1;
-
- drm_class = drm_sysfs_create(THIS_MODULE, "drm");
- if (IS_ERR(drm_class)) {
- printk(KERN_ERR "DRM: Error creating drm class.\n");
- ret = PTR_ERR(drm_class);
- goto err_p2;
- }
-
- drm_proc_root = proc_mkdir("dri", NULL);
- if (!drm_proc_root) {
- DRM_ERROR("Cannot create /proc/dri\n");
- ret = -1;
- goto err_p3;
- }
-
- drm_mem_init();
-
- DRM_INFO("Initialized %s %d.%d.%d %s\n",
- CORE_NAME, CORE_MAJOR, CORE_MINOR, CORE_PATCHLEVEL, CORE_DATE);
- return 0;
-err_p3:
- drm_sysfs_destroy();
-err_p2:
- unregister_chrdev(DRM_MAJOR, "drm");
-
- idr_destroy(&drm_minors_idr);
-err_p1:
- return ret;
-}
-
-static void __exit drm_core_exit(void)
-{
- remove_proc_entry("dri", NULL);
- drm_sysfs_destroy();
-
- unregister_chrdev(DRM_MAJOR, "drm");
-
- idr_destroy(&drm_minors_idr);
-}
-
-module_init(drm_core_init);
-module_exit(drm_core_exit);
-
-/**
- * Get version information
- *
- * \param inode device inode.
- * \param filp file pointer.
- * \param cmd command.
- * \param arg user argument, pointing to a drm_version structure.
- * \return zero on success or negative number on failure.
- *
- * Fills in the version information in \p arg.
- */
-static int drm_version(struct drm_device *dev, void *data,
- struct drm_file *file_priv)
-{
- struct drm_version *version = data;
- int len;
-
- version->version_major = dev->driver->major;
- version->version_minor = dev->driver->minor;
- version->version_patchlevel = dev->driver->patchlevel;
- DRM_COPY(version->name, dev->driver->name);
- DRM_COPY(version->date, dev->driver->date);
- DRM_COPY(version->desc, dev->driver->desc);
-
- return 0;
-}
-
-/**
- * Called whenever a process performs an ioctl on /dev/drm.
- *
- * \param inode device inode.
- * \param file_priv DRM file private.
- * \param cmd command.
- * \param arg user argument.
- * \return zero on success or negative number on failure.
- *
- * Looks up the ioctl function in the ::ioctls table, checking for root
- * previleges if so required, and dispatches to the respective function.
- */
-int drm_ioctl(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg)
-{
- struct drm_file *file_priv = filp->private_data;
- struct drm_device *dev = file_priv->minor->dev;
- struct drm_ioctl_desc *ioctl;
- drm_ioctl_t *func;
- unsigned int nr = DRM_IOCTL_NR(cmd);
- int retcode = -EINVAL;
- char *kdata = NULL;
-
- atomic_inc(&dev->ioctl_count);
- atomic_inc(&dev->counts[_DRM_STAT_IOCTLS]);
- ++file_priv->ioctl_count;
-
- DRM_DEBUG("pid=%d, cmd=0x%02x, nr=0x%02x, dev 0x%lx, auth=%d\n",
- task_pid_nr(current), cmd, nr,
- (long)old_encode_dev(file_priv->minor->device),
- file_priv->authenticated);
-
- if ((nr >= DRM_CORE_IOCTL_COUNT) &&
- ((nr < DRM_COMMAND_BASE) || (nr >= DRM_COMMAND_END)))
- goto err_i1;
- if ((nr >= DRM_COMMAND_BASE) && (nr < DRM_COMMAND_END) &&
- (nr < DRM_COMMAND_BASE + dev->driver->num_ioctls))
- ioctl = &dev->driver->ioctls[nr - DRM_COMMAND_BASE];
- else if ((nr >= DRM_COMMAND_END) || (nr < DRM_COMMAND_BASE)) {
- ioctl = &drm_ioctls[nr];
- cmd = ioctl->cmd;
- } else
- goto err_i1;
-
- /* Do not trust userspace, use our own definition */
- func = ioctl->func;
- /* is there a local override? */
- if ((nr == DRM_IOCTL_NR(DRM_IOCTL_DMA)) && dev->driver->dma_ioctl)
- func = dev->driver->dma_ioctl;
-
- if (!func) {
- DRM_DEBUG("no function\n");
- retcode = -EINVAL;
- } else if (((ioctl->flags & DRM_ROOT_ONLY) && !capable(CAP_SYS_ADMIN)) ||
- ((ioctl->flags & DRM_AUTH) && !file_priv->authenticated) ||
- ((ioctl->flags & DRM_MASTER) && !file_priv->master)) {
- retcode = -EACCES;
- } else {
- if (cmd & (IOC_IN | IOC_OUT)) {
- kdata = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL);
- if (!kdata) {
- retcode = -ENOMEM;
- goto err_i1;
- }
- }
-
- if (cmd & IOC_IN) {
- if (copy_from_user(kdata, (void __user *)arg,
- _IOC_SIZE(cmd)) != 0) {
- retcode = -EFAULT;
- goto err_i1;
- }
- }
- retcode = func(dev, kdata, file_priv);
-
- if ((retcode == 0) && (cmd & IOC_OUT)) {
- if (copy_to_user((void __user *)arg, kdata,
- _IOC_SIZE(cmd)) != 0)
- retcode = -EFAULT;
- }
- }
-
- err_i1:
- if (kdata)
- kfree(kdata);
- atomic_dec(&dev->ioctl_count);
- if (retcode)
- DRM_DEBUG("ret = %x\n", retcode);
- return retcode;
-}
-
-EXPORT_SYMBOL(drm_ioctl);
-
-drm_local_map_t *drm_getsarea(struct drm_device *dev)
-{
- struct drm_map_list *entry;
-
- list_for_each_entry(entry, &dev->maplist, head) {
- if (entry->map && entry->map->type == _DRM_SHM &&
- (entry->map->flags & _DRM_CONTAINS_LOCK)) {
- return entry->map;
- }
- }
- return NULL;
-}
-EXPORT_SYMBOL(drm_getsarea);