diff options
Diffstat (limited to 'drivers/char/drm/drm_stub.c')
| -rw-r--r-- | drivers/char/drm/drm_stub.c | 331 |
1 files changed, 0 insertions, 331 deletions
diff --git a/drivers/char/drm/drm_stub.c b/drivers/char/drm/drm_stub.c deleted file mode 100644 index c2f584f..0000000 --- a/drivers/char/drm/drm_stub.c +++ /dev/null @@ -1,331 +0,0 @@ -/** - * \file drm_stub.h - * Stub support - * - * \author Rickard E. (Rik) Faith <faith@valinux.com> - */ - -/* - * Created: Fri Jan 19 10:48:35 2001 by faith@acm.org - * - * Copyright 2001 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 - * PRECISION INSIGHT 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 <linux/module.h> -#include <linux/moduleparam.h> -#include "drmP.h" -#include "drm_core.h" - -unsigned int drm_debug = 0; /* 1 to enable debug output */ -EXPORT_SYMBOL(drm_debug); - -MODULE_AUTHOR(CORE_AUTHOR); -MODULE_DESCRIPTION(CORE_DESC); -MODULE_LICENSE("GPL and additional rights"); -MODULE_PARM_DESC(debug, "Enable debug output"); - -module_param_named(debug, drm_debug, int, 0600); - -struct idr drm_minors_idr; - -struct class *drm_class; -struct proc_dir_entry *drm_proc_root; - -static int drm_minor_get_id(struct drm_device *dev, int type) -{ - int new_id; - int ret; - int base = 0, limit = 63; - -again: - if (idr_pre_get(&drm_minors_idr, GFP_KERNEL) == 0) { - DRM_ERROR("Out of memory expanding drawable idr\n"); - return -ENOMEM; - } - mutex_lock(&dev->struct_mutex); - ret = idr_get_new_above(&drm_minors_idr, NULL, - base, &new_id); - mutex_unlock(&dev->struct_mutex); - if (ret == -EAGAIN) { - goto again; - } else if (ret) { - return ret; - } - - if (new_id >= limit) { - idr_remove(&drm_minors_idr, new_id); - return -EINVAL; - } - return new_id; -} - -static int drm_fill_in_dev(struct drm_device * dev, struct pci_dev *pdev, - const struct pci_device_id *ent, - struct drm_driver *driver) -{ - int retcode; - - INIT_LIST_HEAD(&dev->filelist); - INIT_LIST_HEAD(&dev->ctxlist); - INIT_LIST_HEAD(&dev->vmalist); - INIT_LIST_HEAD(&dev->maplist); - - spin_lock_init(&dev->count_lock); - spin_lock_init(&dev->drw_lock); - spin_lock_init(&dev->tasklet_lock); - spin_lock_init(&dev->lock.spinlock); - init_timer(&dev->timer); - mutex_init(&dev->struct_mutex); - mutex_init(&dev->ctxlist_mutex); - - idr_init(&dev->drw_idr); - - dev->pdev = pdev; - dev->pci_device = pdev->device; - dev->pci_vendor = pdev->vendor; - -#ifdef __alpha__ - dev->hose = pdev->sysdata; -#endif - dev->irq = pdev->irq; - - if (drm_ht_create(&dev->map_hash, 12)) { - return -ENOMEM; - } - - /* the DRM has 6 basic counters */ - dev->counters = 6; - dev->types[0] = _DRM_STAT_LOCK; - dev->types[1] = _DRM_STAT_OPENS; - dev->types[2] = _DRM_STAT_CLOSES; - dev->types[3] = _DRM_STAT_IOCTLS; - dev->types[4] = _DRM_STAT_LOCKS; - dev->types[5] = _DRM_STAT_UNLOCKS; - - dev->driver = driver; - - if (drm_core_has_AGP(dev)) { - if (drm_device_is_agp(dev)) - dev->agp = drm_agp_init(dev); - if (drm_core_check_feature(dev, DRIVER_REQUIRE_AGP) - && (dev->agp == NULL)) { - DRM_ERROR("Cannot initialize the agpgart module.\n"); - retcode = -EINVAL; - goto error_out_unreg; - } - if (drm_core_has_MTRR(dev)) { - if (dev->agp) - dev->agp->agp_mtrr = - mtrr_add(dev->agp->agp_info.aper_base, - dev->agp->agp_info.aper_size * - 1024 * 1024, MTRR_TYPE_WRCOMB, 1); - } - } - - if (dev->driver->load) - if ((retcode = dev->driver->load(dev, ent->driver_data))) - goto error_out_unreg; - - retcode = drm_ctxbitmap_init(dev); - if (retcode) { - DRM_ERROR("Cannot allocate memory for context bitmap.\n"); - goto error_out_unreg; - } - - return 0; - - error_out_unreg: - drm_lastclose(dev); - return retcode; -} - - -/** - * Get a secondary minor number. - * - * \param dev device data structure - * \param sec-minor structure to hold the assigned minor - * \return negative number on failure. - * - * Search an empty entry and initialize it to the given parameters, and - * create the proc init entry via proc_init(). This routines assigns - * minor numbers to secondary heads of multi-headed cards - */ -static int drm_get_minor(struct drm_device *dev, struct drm_minor **minor, int type) -{ - struct drm_minor *new_minor; - int ret; - int minor_id; - - DRM_DEBUG("\n"); - - minor_id = drm_minor_get_id(dev, type); - if (minor_id < 0) - return minor_id; - - new_minor = kzalloc(sizeof(struct drm_minor), GFP_KERNEL); - if (!new_minor) { - ret = -ENOMEM; - goto err_idr; - } - - new_minor->type = type; - new_minor->device = MKDEV(DRM_MAJOR, minor_id); - new_minor->dev = dev; - new_minor->index = minor_id; - - idr_replace(&drm_minors_idr, new_minor, minor_id); - - if (type == DRM_MINOR_LEGACY) { - ret = drm_proc_init(new_minor, minor_id, drm_proc_root); - if (ret) { - DRM_ERROR("DRM: Failed to initialize /proc/dri.\n"); - goto err_mem; - } - } else - new_minor->dev_root = NULL; - - ret = drm_sysfs_device_add(new_minor); - if (ret) { - printk(KERN_ERR - "DRM: Error sysfs_device_add.\n"); - goto err_g2; - } - *minor = new_minor; - - DRM_DEBUG("new minor assigned %d\n", minor_id); - return 0; - - -err_g2: - if (new_minor->type == DRM_MINOR_LEGACY) - drm_proc_cleanup(new_minor, drm_proc_root); -err_mem: - kfree(new_minor); -err_idr: - idr_remove(&drm_minors_idr, minor_id); - *minor = NULL; - return ret; -} - -/** - * Register. - * - * \param pdev - PCI device structure - * \param ent entry from the PCI ID table with device type flags - * \return zero on success or a negative number on failure. - * - * Attempt to gets inter module "drm" information. If we are first - * then register the character device and inter module information. - * Try and register, if we fail to register, backout previous work. - */ -int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent, - struct drm_driver *driver) -{ - struct drm_device *dev; - int ret; - - DRM_DEBUG("\n"); - - dev = drm_calloc(1, sizeof(*dev), DRM_MEM_STUB); - if (!dev) - return -ENOMEM; - - ret = pci_enable_device(pdev); - if (ret) - goto err_g1; - - pci_set_master(pdev); - if ((ret = drm_fill_in_dev(dev, pdev, ent, driver))) { - printk(KERN_ERR "DRM: Fill_in_dev failed.\n"); - goto err_g2; - } - if ((ret = drm_get_minor(dev, &dev->primary, DRM_MINOR_LEGACY))) - goto err_g2; - - DRM_INFO("Initialized %s %d.%d.%d %s on minor %d\n", - driver->name, driver->major, driver->minor, driver->patchlevel, - driver->date, dev->primary->index); - - return 0; - -err_g2: - pci_disable_device(pdev); -err_g1: - drm_free(dev, sizeof(*dev), DRM_MEM_STUB); - return ret; -} - -/** - * Put a device minor number. - * - * \param dev device data structure - * \return always zero - * - * Cleans up the proc resources. If it is the last minor then release the foreign - * "drm" data, otherwise unregisters the "drm" data, frees the dev list and - * unregisters the character device. - */ -int drm_put_dev(struct drm_device * dev) -{ - DRM_DEBUG("release primary %s\n", dev->driver->pci_driver.name); - - if (dev->unique) { - drm_free(dev->unique, strlen(dev->unique) + 1, DRM_MEM_DRIVER); - dev->unique = NULL; - dev->unique_len = 0; - } - if (dev->devname) { - drm_free(dev->devname, strlen(dev->devname) + 1, - DRM_MEM_DRIVER); - dev->devname = NULL; - } - drm_free(dev, sizeof(*dev), DRM_MEM_STUB); - return 0; -} - -/** - * Put a secondary minor number. - * - * \param sec_minor - structure to be released - * \return always zero - * - * Cleans up the proc resources. Not legal for this to be the - * last minor released. - * - */ -int drm_put_minor(struct drm_minor **minor_p) -{ - struct drm_minor *minor = *minor_p; - DRM_DEBUG("release secondary minor %d\n", minor->index); - - if (minor->type == DRM_MINOR_LEGACY) - drm_proc_cleanup(minor, drm_proc_root); - drm_sysfs_device_remove(minor); - - idr_remove(&drm_minors_idr, minor->index); - - kfree(minor); - *minor_p = NULL; - return 0; -} |
