[deliverable/linux.git] / drivers / gpu / drm / drm_stub.c

/**
 * \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 <linux/slab.h>
#include "drmP.h"
#include "drm_core.h"

unsigned int drm_debug = 0;	/* 1 to enable debug output */
EXPORT_SYMBOL(drm_debug);

unsigned int drm_vblank_offdelay = 5000;    /* Default to 5000 msecs. */
EXPORT_SYMBOL(drm_vblank_offdelay);

unsigned int drm_timestamp_precision = 20;  /* Default to 20 usecs. */
EXPORT_SYMBOL(drm_timestamp_precision);

MODULE_AUTHOR(CORE_AUTHOR);
MODULE_DESCRIPTION(CORE_DESC);
MODULE_LICENSE("GPL and additional rights");
MODULE_PARM_DESC(debug, "Enable debug output");
MODULE_PARM_DESC(vblankoffdelay, "Delay until vblank irq auto-disable [msecs]");
MODULE_PARM_DESC(timestamp_precision_usec, "Max. error on timestamps [usecs]");

module_param_named(debug, drm_debug, int, 0600);
module_param_named(vblankoffdelay, drm_vblank_offdelay, int, 0600);
module_param_named(timestamp_precision_usec, drm_timestamp_precision, int, 0600);

struct idr drm_minors_idr;

struct class *drm_class;
struct proc_dir_entry *drm_proc_root;
struct dentry *drm_debugfs_root;
void drm_ut_debug_printk(unsigned int request_level,
			 const char *prefix,
			 const char *function_name,
			 const char *format, ...)
{
	va_list args;

	if (drm_debug & request_level) {
		if (function_name)
			printk(KERN_DEBUG "[%s:%s], ", prefix, function_name);
		va_start(args, format);
		vprintk(format, args);
		va_end(args);
	}
}
EXPORT_SYMBOL(drm_ut_debug_printk);
static int drm_minor_get_id(struct drm_device *dev, int type)
{
	int new_id;
	int ret;
	int base = 0, limit = 63;

	if (type == DRM_MINOR_CONTROL) {
                base += 64;
                limit = base + 127;
        } else if (type == DRM_MINOR_RENDER) {
                base += 128;
                limit = base + 255;
        }

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;
}

struct drm_master *drm_master_create(struct drm_minor *minor)
{
	struct drm_master *master;

	master = kzalloc(sizeof(*master), GFP_KERNEL);
	if (!master)
		return NULL;

	kref_init(&master->refcount);
	spin_lock_init(&master->lock.spinlock);
	init_waitqueue_head(&master->lock.lock_queue);
	drm_ht_create(&master->magiclist, DRM_MAGIC_HASH_ORDER);
	INIT_LIST_HEAD(&master->magicfree);
	master->minor = minor;

	list_add_tail(&master->head, &minor->master_list);

	return master;
}

struct drm_master *drm_master_get(struct drm_master *master)
{
	kref_get(&master->refcount);
	return master;
}
EXPORT_SYMBOL(drm_master_get);

static void drm_master_destroy(struct kref *kref)
{
	struct drm_master *master = container_of(kref, struct drm_master, refcount);
	struct drm_magic_entry *pt, *next;
	struct drm_device *dev = master->minor->dev;
	struct drm_map_list *r_list, *list_temp;

	list_del(&master->head);

	if (dev->driver->master_destroy)
		dev->driver->master_destroy(dev, master);

	list_for_each_entry_safe(r_list, list_temp, &dev->maplist, head) {
		if (r_list->master == master) {
			drm_rmmap_locked(dev, r_list->map);
			r_list = NULL;
		}
	}

	if (master->unique) {
		kfree(master->unique);
		master->unique = NULL;
		master->unique_len = 0;
	}

	kfree(dev->devname);
	dev->devname = NULL;

	list_for_each_entry_safe(pt, next, &master->magicfree, head) {
		list_del(&pt->head);
		drm_ht_remove_item(&master->magiclist, &pt->hash_item);
		kfree(pt);
	}

	drm_ht_remove(&master->magiclist);

	kfree(master);
}

void drm_master_put(struct drm_master **master)
{
	kref_put(&(*master)->refcount, drm_master_destroy);
	*master = NULL;
}
EXPORT_SYMBOL(drm_master_put);

int drm_setmaster_ioctl(struct drm_device *dev, void *data,
			struct drm_file *file_priv)
{
	int ret = 0;

	if (file_priv->is_master)
		return 0;

	if (file_priv->minor->master && file_priv->minor->master != file_priv->master)
		return -EINVAL;

	if (!file_priv->master)
		return -EINVAL;

	if (!file_priv->minor->master &&
	    file_priv->minor->master != file_priv->master) {
		mutex_lock(&dev->struct_mutex);
		file_priv->minor->master = drm_master_get(file_priv->master);
		file_priv->is_master = 1;
		if (dev->driver->master_set) {
			ret = dev->driver->master_set(dev, file_priv, false);
			if (unlikely(ret != 0)) {
				file_priv->is_master = 0;
				drm_master_put(&file_priv->minor->master);
			}
		}
		mutex_unlock(&dev->struct_mutex);
	}

	return 0;
}

int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
			 struct drm_file *file_priv)
{
	if (!file_priv->is_master)
		return -EINVAL;

	if (!file_priv->minor->master)
		return -EINVAL;

	mutex_lock(&dev->struct_mutex);
	if (dev->driver->master_drop)
		dev->driver->master_drop(dev, file_priv, false);
	drm_master_put(&file_priv->minor->master);
	file_priv->is_master = 0;
	mutex_unlock(&dev->struct_mutex);
	return 0;
}

int drm_fill_in_dev(struct drm_device *dev,
			   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);
	INIT_LIST_HEAD(&dev->vblank_event_list);

	spin_lock_init(&dev->count_lock);
	spin_lock_init(&dev->event_lock);
	mutex_init(&dev->struct_mutex);
	mutex_init(&dev->ctxlist_mutex);

	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 (dev->driver->bus->agp_init) {
		retcode = dev->driver->bus->agp_init(dev);
		if (retcode)
			goto error_out_unreg;
	}


	retcode = drm_ctxbitmap_init(dev);
	if (retcode) {
		DRM_ERROR("Cannot allocate memory for context bitmap.\n");
		goto error_out_unreg;
	}

	if (driver->driver_features & DRIVER_GEM) {
		retcode = drm_gem_init(dev);
		if (retcode) {
			DRM_ERROR("Cannot initialize graphics execution "
				  "manager (GEM)\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
 */
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;
	INIT_LIST_HEAD(&new_minor->master_list);

	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->proc_root = NULL;

#if defined(CONFIG_DEBUG_FS)
	ret = drm_debugfs_init(new_minor, minor_id, drm_debugfs_root);
	if (ret) {
		DRM_ERROR("DRM: Failed to initialize /sys/kernel/debug/dri.\n");
		goto err_g2;
	}
#endif

	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;
}

/**
 * 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);
#if defined(CONFIG_DEBUG_FS)
	drm_debugfs_cleanup(minor);
#endif

	drm_sysfs_device_remove(minor);

	idr_remove(&drm_minors_idr, minor->index);

	kfree(minor);
	*minor_p = NULL;
	return 0;
}

/**
 * Called via drm_exit() at module unload time or when pci device is
 * unplugged.
 *
 * Cleans up all DRM device, calling drm_lastclose().
 *
 */
void drm_put_dev(struct drm_device *dev)
{
	struct drm_driver *driver;
	struct drm_map_list *r_list, *list_temp;

	DRM_DEBUG("\n");

	if (!dev) {
		DRM_ERROR("cleanup called no dev\n");
		return;
	}
	driver = dev->driver;

	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 (dev->driver->unload)
		dev->driver->unload(dev);

	if (drm_core_has_AGP(dev) && dev->agp) {
		kfree(dev->agp);
		dev->agp = NULL;
	}

	drm_vblank_cleanup(dev);

	list_for_each_entry_safe(r_list, list_temp, &dev->maplist, head)
		drm_rmmap(dev, r_list->map);
	drm_ht_remove(&dev->map_hash);

	drm_ctxbitmap_cleanup(dev);

	if (drm_core_check_feature(dev, DRIVER_MODESET))
		drm_put_minor(&dev->control);

	if (driver->driver_features & DRIVER_GEM)
		drm_gem_destroy(dev);

	drm_put_minor(&dev->primary);

	list_del(&dev->driver_item);
	if (dev->devname) {
		kfree(dev->devname);
		dev->devname = NULL;
	}
	kfree(dev);
}
EXPORT_SYMBOL(drm_put_dev);
Commit	Line	Data
1da177e4 LT	1	/**
	2	* \file drm_stub.h
	3	* Stub support
	4	*
	5	* \author Rickard E. (Rik) Faith <faith@valinux.com>
	6	*/
	7
	8	/*
	9	* Created: Fri Jan 19 10:48:35 2001 by faith@acm.org
	10	*
	11	* Copyright 2001 VA Linux Systems, Inc., Sunnyvale, California.
	12	* All Rights Reserved.
	13	*
	14	* Permission is hereby granted, free of charge, to any person obtaining a
	15	* copy of this software and associated documentation files (the "Software"),
	16	* to deal in the Software without restriction, including without limitation
	17	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	18	* and/or sell copies of the Software, and to permit persons to whom the
	19	* Software is furnished to do so, subject to the following conditions:
	20	*
	21	* The above copyright notice and this permission notice (including the next
	22	* paragraph) shall be included in all copies or substantial portions of the
	23	* Software.
	24	*
	25	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	26	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	27	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	28	* PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
	29	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	30	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
	31	* DEALINGS IN THE SOFTWARE.
	32	*/
	33
	34	#include <linux/module.h>
	35	#include <linux/moduleparam.h>
5a0e3ad6	36	#include <linux/slab.h>
1da177e4 LT	37	#include "drmP.h"
	38	#include "drm_core.h"
	39
b5e89ed5	40	unsigned int drm_debug = 0; /* 1 to enable debug output */
1da177e4 LT	41	EXPORT_SYMBOL(drm_debug);
1da177e4 LT	42
27641c3f MK	43	unsigned int drm_vblank_offdelay = 5000; /* Default to 5000 msecs. */
	44	EXPORT_SYMBOL(drm_vblank_offdelay);
	45
	46	unsigned int drm_timestamp_precision = 20; /* Default to 20 usecs. */
	47	EXPORT_SYMBOL(drm_timestamp_precision);
	48
b5e89ed5 DA	49	MODULE_AUTHOR(CORE_AUTHOR);
b5e89ed5 DA	50	MODULE_DESCRIPTION(CORE_DESC);
1da177e4	51	MODULE_LICENSE("GPL and additional rights");
1da177e4	52	MODULE_PARM_DESC(debug, "Enable debug output");
27641c3f MK	53	MODULE_PARM_DESC(vblankoffdelay, "Delay until vblank irq auto-disable [msecs]");
27641c3f MK	54	MODULE_PARM_DESC(timestamp_precision_usec, "Max. error on timestamps [usecs]");
1da177e4	55
c0758146	56	module_param_named(debug, drm_debug, int, 0600);
27641c3f MK	57	module_param_named(vblankoffdelay, drm_vblank_offdelay, int, 0600);
27641c3f MK	58	module_param_named(timestamp_precision_usec, drm_timestamp_precision, int, 0600);
1da177e4	59
2c14f28b DA	60	struct idr drm_minors_idr;
2c14f28b DA	61
0650fd58	62	struct class *drm_class;
1da177e4	63	struct proc_dir_entry *drm_proc_root;
955b12de	64	struct dentry *drm_debugfs_root;
4fefcb27	65	void drm_ut_debug_printk(unsigned int request_level,
	66	const char *prefix,
	67	const char *function_name,
	68	const char *format, ...)
	69	{
	70	va_list args;
1da177e4	71
4fefcb27	72	if (drm_debug & request_level) {
	73	if (function_name)
	74	printk(KERN_DEBUG "[%s:%s], ", prefix, function_name);
	75	va_start(args, format);
	76	vprintk(format, args);
	77	va_end(args);
	78	}
	79	}
	80	EXPORT_SYMBOL(drm_ut_debug_printk);
2c14f28b DA	81	static int drm_minor_get_id(struct drm_device *dev, int type)
	82	{
	83	int new_id;
	84	int ret;
	85	int base = 0, limit = 63;
	86
f453ba04 DA	87	if (type == DRM_MINOR_CONTROL) {
	88	base += 64;
	89	limit = base + 127;
	90	} else if (type == DRM_MINOR_RENDER) {
	91	base += 128;
	92	limit = base + 255;
	93	}
	94
2c14f28b DA	95	again:
	96	if (idr_pre_get(&drm_minors_idr, GFP_KERNEL) == 0) {
	97	DRM_ERROR("Out of memory expanding drawable idr\n");
	98	return -ENOMEM;
	99	}
	100	mutex_lock(&dev->struct_mutex);
	101	ret = idr_get_new_above(&drm_minors_idr, NULL,
	102	base, &new_id);
	103	mutex_unlock(&dev->struct_mutex);
	104	if (ret == -EAGAIN) {
	105	goto again;
	106	} else if (ret) {
	107	return ret;
	108	}
	109
	110	if (new_id >= limit) {
	111	idr_remove(&drm_minors_idr, new_id);
	112	return -EINVAL;
	113	}
	114	return new_id;
	115	}
	116
7c1c2871 DA	117	struct drm_master drm_master_create(struct drm_minor minor)
	118	{
	119	struct drm_master *master;
	120
9a298b2a	121	master = kzalloc(sizeof(*master), GFP_KERNEL);
7c1c2871 DA	122	if (!master)
	123	return NULL;
	124
	125	kref_init(&master->refcount);
	126	spin_lock_init(&master->lock.spinlock);
	127	init_waitqueue_head(&master->lock.lock_queue);
	128	drm_ht_create(&master->magiclist, DRM_MAGIC_HASH_ORDER);
	129	INIT_LIST_HEAD(&master->magicfree);
	130	master->minor = minor;
	131
	132	list_add_tail(&master->head, &minor->master_list);
	133
	134	return master;
	135	}
	136
	137	struct drm_master drm_master_get(struct drm_master master)
	138	{
	139	kref_get(&master->refcount);
	140	return master;
	141	}
85bb0c37	142	EXPORT_SYMBOL(drm_master_get);
7c1c2871 DA	143
	144	static void drm_master_destroy(struct kref *kref)
	145	{
	146	struct drm_master *master = container_of(kref, struct drm_master, refcount);
	147	struct drm_magic_entry pt, next;
	148	struct drm_device *dev = master->minor->dev;
c1ff85d9	149	struct drm_map_list r_list, list_temp;
7c1c2871 DA	150
	151	list_del(&master->head);
	152
	153	if (dev->driver->master_destroy)
	154	dev->driver->master_destroy(dev, master);
	155
c1ff85d9 DA	156	list_for_each_entry_safe(r_list, list_temp, &dev->maplist, head) {
	157	if (r_list->master == master) {
	158	drm_rmmap_locked(dev, r_list->map);
	159	r_list = NULL;
	160	}
	161	}
	162
7c1c2871	163	if (master->unique) {
9a298b2a	164	kfree(master->unique);
7c1c2871 DA	165	master->unique = NULL;
	166	master->unique_len = 0;
	167	}
	168
6e35023f CW	169	kfree(dev->devname);
	170	dev->devname = NULL;
	171
7c1c2871 DA	172	list_for_each_entry_safe(pt, next, &master->magicfree, head) {
	173	list_del(&pt->head);
	174	drm_ht_remove_item(&master->magiclist, &pt->hash_item);
9a298b2a	175	kfree(pt);
7c1c2871 DA	176	}
	177
	178	drm_ht_remove(&master->magiclist);
	179
9a298b2a	180	kfree(master);
7c1c2871 DA	181	}
	182
	183	void drm_master_put(struct drm_master **master)
	184	{
	185	kref_put(&(*master)->refcount, drm_master_destroy);
	186	*master = NULL;
	187	}
85bb0c37	188	EXPORT_SYMBOL(drm_master_put);
7c1c2871 DA	189
	190	int drm_setmaster_ioctl(struct drm_device dev, void data,
	191	struct drm_file *file_priv)
	192	{
862302ff TH	193	int ret = 0;
862302ff TH	194
6b008426 JB	195	if (file_priv->is_master)
	196	return 0;
	197
7c1c2871 DA	198	if (file_priv->minor->master && file_priv->minor->master != file_priv->master)
	199	return -EINVAL;
	200
	201	if (!file_priv->master)
	202	return -EINVAL;
	203
	204	if (!file_priv->minor->master &&
	205	file_priv->minor->master != file_priv->master) {
	206	mutex_lock(&dev->struct_mutex);
	207	file_priv->minor->master = drm_master_get(file_priv->master);
6b008426	208	file_priv->is_master = 1;
862302ff TH	209	if (dev->driver->master_set) {
	210	ret = dev->driver->master_set(dev, file_priv, false);
	211	if (unlikely(ret != 0)) {
	212	file_priv->is_master = 0;
	213	drm_master_put(&file_priv->minor->master);
	214	}
	215	}
5ad8b7d1	216	mutex_unlock(&dev->struct_mutex);
7c1c2871 DA	217	}
	218
	219	return 0;
	220	}
	221
	222	int drm_dropmaster_ioctl(struct drm_device dev, void data,
	223	struct drm_file *file_priv)
	224	{
6b008426	225	if (!file_priv->is_master)
7c1c2871	226	return -EINVAL;
6b008426	227
07f1c7a7 DA	228	if (!file_priv->minor->master)
	229	return -EINVAL;
	230
7c1c2871	231	mutex_lock(&dev->struct_mutex);
862302ff TH	232	if (dev->driver->master_drop)
862302ff TH	233	dev->driver->master_drop(dev, file_priv, false);
7c1c2871	234	drm_master_put(&file_priv->minor->master);
6b008426	235	file_priv->is_master = 0;
7c1c2871 DA	236	mutex_unlock(&dev->struct_mutex);
	237	return 0;
	238	}
	239
dcdb1674	240	int drm_fill_in_dev(struct drm_device *dev,
b5e89ed5 DA	241	const struct pci_device_id *ent,
b5e89ed5 DA	242	struct drm_driver *driver)
1da177e4 LT	243	{
	244	int retcode;
	245
bd1b331f	246	INIT_LIST_HEAD(&dev->filelist);
7c158ace DA	247	INIT_LIST_HEAD(&dev->ctxlist);
	248	INIT_LIST_HEAD(&dev->vmalist);
	249	INIT_LIST_HEAD(&dev->maplist);
c9a9c5e0	250	INIT_LIST_HEAD(&dev->vblank_event_list);
7c158ace	251
1da177e4	252	spin_lock_init(&dev->count_lock);
c9a9c5e0	253	spin_lock_init(&dev->event_lock);
30e2fb18 DA	254	mutex_init(&dev->struct_mutex);
30e2fb18 DA	255	mutex_init(&dev->ctxlist_mutex);
1da177e4	256
8d153f71	257	if (drm_ht_create(&dev->map_hash, 12)) {
8d153f71 TH	258	return -ENOMEM;
8d153f71 TH	259	}
836cf046	260
1da177e4 LT	261	/* the DRM has 6 basic counters */
1da177e4 LT	262	dev->counters = 6;
b5e89ed5 DA	263	dev->types[0] = _DRM_STAT_LOCK;
	264	dev->types[1] = _DRM_STAT_OPENS;
	265	dev->types[2] = _DRM_STAT_CLOSES;
	266	dev->types[3] = _DRM_STAT_IOCTLS;
	267	dev->types[4] = _DRM_STAT_LOCKS;
	268	dev->types[5] = _DRM_STAT_UNLOCKS;
1da177e4 LT	269
1da177e4 LT	270	dev->driver = driver;
b5e89ed5	271
8410ea3b DA	272	if (dev->driver->bus->agp_init) {
	273	retcode = dev->driver->bus->agp_init(dev);
	274	if (retcode)
1da177e4	275	goto error_out_unreg;
1da177e4 LT	276	}
1da177e4 LT	277
2716a02f	278
8410ea3b	279
b5e89ed5 DA	280	retcode = drm_ctxbitmap_init(dev);
	281	if (retcode) {
	282	DRM_ERROR("Cannot allocate memory for context bitmap.\n");
1da177e4 LT	283	goto error_out_unreg;
	284	}
	285
673a394b EA	286	if (driver->driver_features & DRIVER_GEM) {
	287	retcode = drm_gem_init(dev);
	288	if (retcode) {
	289	DRM_ERROR("Cannot initialize graphics execution "
	290	"manager (GEM)\n");
	291	goto error_out_unreg;
	292	}
	293	}
	294
1da177e4	295	return 0;
b5e89ed5 DA	296
b5e89ed5 DA	297	error_out_unreg:
22eae947	298	drm_lastclose(dev);
1da177e4 LT	299	return retcode;
	300	}
	301
1da177e4	302
1da177e4 LT	303	/**
	304	* Get a secondary minor number.
	305	*
	306	* \param dev device data structure
	307	* \param sec-minor structure to hold the assigned minor
	308	* \return negative number on failure.
	309	*
	310	* Search an empty entry and initialize it to the given parameters, and
	311	* create the proc init entry via proc_init(). This routines assigns
	312	* minor numbers to secondary heads of multi-headed cards
	313	*/
dcdb1674	314	int drm_get_minor(struct drm_device dev, struct drm_minor *minor, int type)
1da177e4	315	{
2c14f28b	316	struct drm_minor *new_minor;
1da177e4	317	int ret;
2c14f28b	318	int minor_id;
1da177e4 LT	319
	320	DRM_DEBUG("\n");
	321
2c14f28b DA	322	minor_id = drm_minor_get_id(dev, type);
	323	if (minor_id < 0)
	324	return minor_id;
	325
	326	new_minor = kzalloc(sizeof(struct drm_minor), GFP_KERNEL);
	327	if (!new_minor) {
	328	ret = -ENOMEM;
	329	goto err_idr;
	330	}
	331
	332	new_minor->type = type;
	333	new_minor->device = MKDEV(DRM_MAJOR, minor_id);
	334	new_minor->dev = dev;
	335	new_minor->index = minor_id;
7c1c2871	336	INIT_LIST_HEAD(&new_minor->master_list);
2c14f28b DA	337
	338	idr_replace(&drm_minors_idr, new_minor, minor_id);
	339
	340	if (type == DRM_MINOR_LEGACY) {
	341	ret = drm_proc_init(new_minor, minor_id, drm_proc_root);
	342	if (ret) {
	343	DRM_ERROR("DRM: Failed to initialize /proc/dri.\n");
	344	goto err_mem;
1da177e4	345	}
2c14f28b	346	} else
955b12de BG	347	new_minor->proc_root = NULL;
	348
	349	#if defined(CONFIG_DEBUG_FS)
	350	ret = drm_debugfs_init(new_minor, minor_id, drm_debugfs_root);
	351	if (ret) {
156f5a78	352	DRM_ERROR("DRM: Failed to initialize /sys/kernel/debug/dri.\n");
955b12de BG	353	goto err_g2;
	354	}
	355	#endif
2c14f28b DA	356
	357	ret = drm_sysfs_device_add(new_minor);
	358	if (ret) {
	359	printk(KERN_ERR
	360	"DRM: Error sysfs_device_add.\n");
	361	goto err_g2;
1da177e4	362	}
2c14f28b DA	363	*minor = new_minor;
	364
	365	DRM_DEBUG("new minor assigned %d\n", minor_id);
	366	return 0;
	367
	368
	369	err_g2:
	370	if (new_minor->type == DRM_MINOR_LEGACY)
	371	drm_proc_cleanup(new_minor, drm_proc_root);
	372	err_mem:
	373	kfree(new_minor);
	374	err_idr:
	375	idr_remove(&drm_minors_idr, minor_id);
	376	*minor = NULL;
1da177e4 LT	377	return ret;
1da177e4 LT	378	}
b5e89ed5	379
1da177e4 LT	380	/**
	381	* Put a secondary minor number.
	382	*
	383	* \param sec_minor - structure to be released
	384	* \return always zero
	385	*
	386	* Cleans up the proc resources. Not legal for this to be the
	387	* last minor released.
	388	*
	389	*/
2c14f28b	390	int drm_put_minor(struct drm_minor **minor_p)
1da177e4	391	{
2c14f28b	392	struct drm_minor minor = minor_p;
673a394b	393
2c14f28b	394	DRM_DEBUG("release secondary minor %d\n", minor->index);
b5e89ed5	395
2c14f28b DA	396	if (minor->type == DRM_MINOR_LEGACY)
2c14f28b DA	397	drm_proc_cleanup(minor, drm_proc_root);
955b12de BG	398	#if defined(CONFIG_DEBUG_FS)
	399	drm_debugfs_cleanup(minor);
	400	#endif
	401
2c14f28b	402	drm_sysfs_device_remove(minor);
1da177e4	403
2c14f28b	404	idr_remove(&drm_minors_idr, minor->index);
b5e89ed5	405
2c14f28b DA	406	kfree(minor);
2c14f28b DA	407	*minor_p = NULL;
1da177e4 LT	408	return 0;
1da177e4 LT	409	}
112b715e KH	410
	411	/**
	412	* Called via drm_exit() at module unload time or when pci device is
	413	* unplugged.
	414	*
	415	* Cleans up all DRM device, calling drm_lastclose().
	416	*
112b715e KH	417	*/
	418	void drm_put_dev(struct drm_device *dev)
	419	{
ecca0683	420	struct drm_driver *driver;
112b715e KH	421	struct drm_map_list r_list, list_temp;
	422
	423	DRM_DEBUG("\n");
	424
	425	if (!dev) {
	426	DRM_ERROR("cleanup called no dev\n");
	427	return;
	428	}
ecca0683	429	driver = dev->driver;
112b715e	430
112b715e KH	431	drm_lastclose(dev);
	432
	433	if (drm_core_has_MTRR(dev) && drm_core_has_AGP(dev) &&
	434	dev->agp && dev->agp->agp_mtrr >= 0) {
	435	int retval;
	436	retval = mtrr_del(dev->agp->agp_mtrr,
	437	dev->agp->agp_info.aper_base,
	438	dev->agp->agp_info.aper_size * 1024 * 1024);
	439	DRM_DEBUG("mtrr_del=%d\n", retval);
	440	}
	441
	442	if (dev->driver->unload)
	443	dev->driver->unload(dev);
	444
	445	if (drm_core_has_AGP(dev) && dev->agp) {
9a298b2a	446	kfree(dev->agp);
112b715e KH	447	dev->agp = NULL;
	448	}
	449
b78315f0 JB	450	drm_vblank_cleanup(dev);
b78315f0 JB	451
112b715e KH	452	list_for_each_entry_safe(r_list, list_temp, &dev->maplist, head)
112b715e KH	453	drm_rmmap(dev, r_list->map);
30ddbd94 BS	454	drm_ht_remove(&dev->map_hash);
	455
	456	drm_ctxbitmap_cleanup(dev);
112b715e KH	457
	458	if (drm_core_check_feature(dev, DRIVER_MODESET))
	459	drm_put_minor(&dev->control);
	460
	461	if (driver->driver_features & DRIVER_GEM)
	462	drm_gem_destroy(dev);
	463
	464	drm_put_minor(&dev->primary);
	465
a250b9fd	466	list_del(&dev->driver_item);
112b715e	467	if (dev->devname) {
9a298b2a	468	kfree(dev->devname);
112b715e KH	469	dev->devname = NULL;
112b715e KH	470	}
9a298b2a	471	kfree(dev);
112b715e KH	472	}
112b715e KH	473	EXPORT_SYMBOL(drm_put_dev);