aboutsummaryrefslogtreecommitdiff
path: root/drivers/char/drm/drm_stub.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/char/drm/drm_stub.c')
-rw-r--r--drivers/char/drm/drm_stub.c331
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 c2f584f3b46..00000000000
--- 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;
-}