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

/**
 * \file drm_info.c
 * DRM info file implementations
 *
 * \author Ben Gamari <bgamari@gmail.com>
 */

/*
 * Created: Sun Dec 21 13:09:50 2008 by bgamari@gmail.com
 *
 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
 * Copyright 2008 Ben Gamari <bgamari@gmail.com>
 * 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 <linux/seq_file.h>
#include <drm/drmP.h>
#include <drm/drm_gem.h>

#include "drm_internal.h"
#include "drm_legacy.h"

/**
 * Called when "/proc/dri/.../name" is read.
 *
 * Prints the device name together with the bus id if available.
 */
int drm_name_info(struct seq_file *m, void *data)
{
	struct drm_info_node *node = (struct drm_info_node *) m->private;
	struct drm_minor *minor = node->minor;
	struct drm_device *dev = minor->dev;
	struct drm_master *master = minor->master;
	if (!master)
		return 0;

	if (master->unique) {
		seq_printf(m, "%s %s %s\n",
			   dev->driver->name,
			   dev_name(dev->dev), master->unique);
	} else {
		seq_printf(m, "%s %s\n",
			   dev->driver->name, dev_name(dev->dev));
	}
	return 0;
}

/**
 * Called when "/proc/dri/.../vm" is read.
 *
 * Prints information about all mappings in drm_device::maplist.
 */
int drm_vm_info(struct seq_file *m, void *data)
{
	struct drm_info_node *node = (struct drm_info_node *) m->private;
	struct drm_device *dev = node->minor->dev;
	struct drm_local_map *map;
	struct drm_map_list *r_list;

	/* Hardcoded from _DRM_FRAME_BUFFER,
	   _DRM_REGISTERS, _DRM_SHM, _DRM_AGP, and
	   _DRM_SCATTER_GATHER and _DRM_CONSISTENT */
	const char *types[] = { "FB", "REG", "SHM", "AGP", "SG", "PCI" };
	const char *type;
	int i;

	mutex_lock(&dev->struct_mutex);
	seq_printf(m, "slot	 offset	      size type flags	 address mtrr\n\n");
	i = 0;
	list_for_each_entry(r_list, &dev->maplist, head) {
		map = r_list->map;
		if (!map)
			continue;
		if (map->type < 0 || map->type > 5)
			type = "??";
		else
			type = types[map->type];

		seq_printf(m, "%4d 0x%016llx 0x%08lx %4.4s  0x%02x 0x%08lx ",
			   i,
			   (unsigned long long)map->offset,
			   map->size, type, map->flags,
			   (unsigned long) r_list->user_token);
		if (map->mtrr < 0)
			seq_printf(m, "none\n");
		else
			seq_printf(m, "%4d\n", map->mtrr);
		i++;
	}
	mutex_unlock(&dev->struct_mutex);
	return 0;
}

/**
 * Called when "/proc/dri/.../bufs" is read.
 */
int drm_bufs_info(struct seq_file *m, void *data)
{
	struct drm_info_node *node = (struct drm_info_node *) m->private;
	struct drm_device *dev = node->minor->dev;
	struct drm_device_dma *dma;
	int i, seg_pages;

	mutex_lock(&dev->struct_mutex);
	dma = dev->dma;
	if (!dma) {
		mutex_unlock(&dev->struct_mutex);
		return 0;
	}

	seq_printf(m, " o     size count  free	 segs pages    kB\n\n");
	for (i = 0; i <= DRM_MAX_ORDER; i++) {
		if (dma->bufs[i].buf_count) {
			seg_pages = dma->bufs[i].seg_count * (1 << dma->bufs[i].page_order);
			seq_printf(m, "%2d %8d %5d %5d %5d %5d %5ld\n",
				   i,
				   dma->bufs[i].buf_size,
				   dma->bufs[i].buf_count,
				   0,
				   dma->bufs[i].seg_count,
				   seg_pages,
				   seg_pages * PAGE_SIZE / 1024);
		}
	}
	seq_printf(m, "\n");
	for (i = 0; i < dma->buf_count; i++) {
		if (i && !(i % 32))
			seq_printf(m, "\n");
		seq_printf(m, " %d", dma->buflist[i]->list);
	}
	seq_printf(m, "\n");
	mutex_unlock(&dev->struct_mutex);
	return 0;
}

/**
 * Called when "/proc/dri/.../clients" is read.
 *
 */
int drm_clients_info(struct seq_file *m, void *data)
{
	struct drm_info_node *node = (struct drm_info_node *) m->private;
	struct drm_device *dev = node->minor->dev;
	struct drm_file *priv;

	seq_printf(m,
		   "%20s %5s %3s master a %5s %10s\n",
		   "command",
		   "pid",
		   "dev",
		   "uid",
		   "magic");

	/* dev->filelist is sorted youngest first, but we want to present
	 * oldest first (i.e. kernel, servers, clients), so walk backwardss.
	 */
	mutex_lock(&dev->filelist_mutex);
	list_for_each_entry_reverse(priv, &dev->filelist, lhead) {
		struct task_struct *task;

		rcu_read_lock(); /* locks pid_task()->comm */
		task = pid_task(priv->pid, PIDTYPE_PID);
		seq_printf(m, "%20s %5d %3d   %c    %c %5d %10u\n",
			   task ? task->comm : "<unknown>",
			   pid_vnr(priv->pid),
			   priv->minor->index,
			   priv->is_master ? 'y' : 'n',
			   priv->authenticated ? 'y' : 'n',
			   from_kuid_munged(seq_user_ns(m), priv->uid),
			   priv->magic);
		rcu_read_unlock();
	}
	mutex_unlock(&dev->filelist_mutex);
	return 0;
}


static int drm_gem_one_name_info(int id, void *ptr, void *data)
{
	struct drm_gem_object *obj = ptr;
	struct seq_file *m = data;

	seq_printf(m, "%6d %8zd %7d %8d\n",
		   obj->name, obj->size,
		   obj->handle_count,
		   atomic_read(&obj->refcount.refcount));
	return 0;
}

int drm_gem_name_info(struct seq_file *m, void *data)
{
	struct drm_info_node *node = (struct drm_info_node *) m->private;
	struct drm_device *dev = node->minor->dev;

	seq_printf(m, "  name     size handles refcount\n");

	mutex_lock(&dev->object_name_lock);
	idr_for_each(&dev->object_name_idr, drm_gem_one_name_info, m);
	mutex_unlock(&dev->object_name_lock);

	return 0;
}
Commit	Line	Data
955b12de BG	1	/**
	2	* \file drm_info.c
	3	* DRM info file implementations
	4	*
	5	* \author Ben Gamari <bgamari@gmail.com>
	6	*/
	7
	8	/*
	9	* Created: Sun Dec 21 13:09:50 2008 by bgamari@gmail.com
	10	*
	11	* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
	12	* Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
	13	* Copyright 2008 Ben Gamari <bgamari@gmail.com>
	14	* All Rights Reserved.
	15	*
	16	* Permission is hereby granted, free of charge, to any person obtaining a
	17	* copy of this software and associated documentation files (the "Software"),
	18	* to deal in the Software without restriction, including without limitation
	19	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	20	* and/or sell copies of the Software, and to permit persons to whom the
	21	* Software is furnished to do so, subject to the following conditions:
	22	*
	23	* The above copyright notice and this permission notice (including the next
	24	* paragraph) shall be included in all copies or substantial portions of the
	25	* Software.
	26	*
	27	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	28	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	29	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	30	* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
	31	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	32	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	33	* OTHER DEALINGS IN THE SOFTWARE.
	34	*/
	35
	36	#include <linux/seq_file.h>
760285e7	37	#include <drm/drmP.h>
d9fc9413 DV	38	#include <drm/drm_gem.h>
d9fc9413 DV	39
43fc884e	40	#include "drm_internal.h"
ba8286fa	41	#include "drm_legacy.h"
955b12de BG	42
	43	/**
	44	* Called when "/proc/dri/.../name" is read.
	45	*
	46	* Prints the device name together with the bus id if available.
	47	*/
	48	int drm_name_info(struct seq_file m, void data)
	49	{
	50	struct drm_info_node node = (struct drm_info_node ) m->private;
	51	struct drm_minor *minor = node->minor;
	52	struct drm_device *dev = minor->dev;
	53	struct drm_master *master = minor->master;
955b12de BG	54	if (!master)
	55	return 0;
	56
8410ea3b DA	57	if (master->unique) {
8410ea3b DA	58	seq_printf(m, "%s %s %s\n",
9de1b51f	59	dev->driver->name,
8410ea3b	60	dev_name(dev->dev), master->unique);
955b12de	61	} else {
8410ea3b	62	seq_printf(m, "%s %s\n",
9de1b51f	63	dev->driver->name, dev_name(dev->dev));
955b12de	64	}
955b12de BG	65	return 0;
	66	}
	67
	68	/**
	69	* Called when "/proc/dri/.../vm" is read.
	70	*
	71	* Prints information about all mappings in drm_device::maplist.
	72	*/
	73	int drm_vm_info(struct seq_file m, void data)
	74	{
	75	struct drm_info_node node = (struct drm_info_node ) m->private;
	76	struct drm_device *dev = node->minor->dev;
1847a549	77	struct drm_local_map *map;
955b12de BG	78	struct drm_map_list *r_list;
	79
	80	/* Hardcoded from _DRM_FRAME_BUFFER,
	81	_DRM_REGISTERS, _DRM_SHM, _DRM_AGP, and
	82	_DRM_SCATTER_GATHER and _DRM_CONSISTENT */
	83	const char *types[] = { "FB", "REG", "SHM", "AGP", "SG", "PCI" };
	84	const char *type;
	85	int i;
	86
	87	mutex_lock(&dev->struct_mutex);
	88	seq_printf(m, "slot offset size type flags address mtrr\n\n");
	89	i = 0;
	90	list_for_each_entry(r_list, &dev->maplist, head) {
	91	map = r_list->map;
	92	if (!map)
	93	continue;
	94	if (map->type < 0 \|\| map->type > 5)
	95	type = "??";
	96	else
	97	type = types[map->type];
	98
1847a549	99	seq_printf(m, "%4d 0x%016llx 0x%08lx %4.4s 0x%02x 0x%08lx ",
955b12de	100	i,
1847a549	101	(unsigned long long)map->offset,
955b12de BG	102	map->size, type, map->flags,
	103	(unsigned long) r_list->user_token);
	104	if (map->mtrr < 0)
	105	seq_printf(m, "none\n");
	106	else
	107	seq_printf(m, "%4d\n", map->mtrr);
	108	i++;
	109	}
	110	mutex_unlock(&dev->struct_mutex);
	111	return 0;
	112	}
	113
955b12de BG	114	/**
	115	* Called when "/proc/dri/.../bufs" is read.
	116	*/
	117	int drm_bufs_info(struct seq_file m, void data)
	118	{
	119	struct drm_info_node node = (struct drm_info_node ) m->private;
	120	struct drm_device *dev = node->minor->dev;
	121	struct drm_device_dma *dma;
	122	int i, seg_pages;
	123
	124	mutex_lock(&dev->struct_mutex);
	125	dma = dev->dma;
	126	if (!dma) {
	127	mutex_unlock(&dev->struct_mutex);
	128	return 0;
	129	}
	130
	131	seq_printf(m, " o size count free segs pages kB\n\n");
	132	for (i = 0; i <= DRM_MAX_ORDER; i++) {
	133	if (dma->bufs[i].buf_count) {
	134	seg_pages = dma->bufs[i].seg_count * (1 << dma->bufs[i].page_order);
	135	seq_printf(m, "%2d %8d %5d %5d %5d %5d %5ld\n",
	136	i,
	137	dma->bufs[i].buf_size,
	138	dma->bufs[i].buf_count,
b008c0fc	139	0,
955b12de BG	140	dma->bufs[i].seg_count,
	141	seg_pages,
	142	seg_pages * PAGE_SIZE / 1024);
	143	}
	144	}
	145	seq_printf(m, "\n");
	146	for (i = 0; i < dma->buf_count; i++) {
	147	if (i && !(i % 32))
	148	seq_printf(m, "\n");
	149	seq_printf(m, " %d", dma->buflist[i]->list);
	150	}
	151	seq_printf(m, "\n");
	152	mutex_unlock(&dev->struct_mutex);
	153	return 0;
	154	}
	155
955b12de BG	156	/**
	157	* Called when "/proc/dri/.../clients" is read.
	158	*
	159	*/
	160	int drm_clients_info(struct seq_file m, void data)
	161	{
	162	struct drm_info_node node = (struct drm_info_node ) m->private;
	163	struct drm_device *dev = node->minor->dev;
	164	struct drm_file *priv;
	165
50d47cb3 CW	166	seq_printf(m,
	167	"%20s %5s %3s master a %5s %10s\n",
	168	"command",
	169	"pid",
	170	"dev",
	171	"uid",
	172	"magic");
	173
	174	/* dev->filelist is sorted youngest first, but we want to present
	175	* oldest first (i.e. kernel, servers, clients), so walk backwardss.
	176	*/
1d2ac403	177	mutex_lock(&dev->filelist_mutex);
50d47cb3 CW	178	list_for_each_entry_reverse(priv, &dev->filelist, lhead) {
	179	struct task_struct *task;
	180
	181	rcu_read_lock(); /* locks pid_task()->comm */
	182	task = pid_task(priv->pid, PIDTYPE_PID);
	183	seq_printf(m, "%20s %5d %3d %c %c %5d %10u\n",
	184	task ? task->comm : "<unknown>",
5fce5e0b	185	pid_vnr(priv->pid),
50d47cb3 CW	186	priv->minor->index,
	187	priv->is_master ? 'y' : 'n',
	188	priv->authenticated ? 'y' : 'n',
5fce5e0b	189	from_kuid_munged(seq_user_ns(m), priv->uid),
5952fba5	190	priv->magic);
50d47cb3	191	rcu_read_unlock();
955b12de	192	}
1d2ac403	193	mutex_unlock(&dev->filelist_mutex);
955b12de BG	194	return 0;
	195	}
	196
	197
b375de0b	198	static int drm_gem_one_name_info(int id, void ptr, void data)
955b12de BG	199	{
	200	struct drm_gem_object *obj = ptr;
	201	struct seq_file *m = data;
	202
955b12de BG	203	seq_printf(m, "%6d %8zd %7d %8d\n",
955b12de BG	204	obj->name, obj->size,
a8e11d1c	205	obj->handle_count,
955b12de BG	206	atomic_read(&obj->refcount.refcount));
	207	return 0;
	208	}
	209
	210	int drm_gem_name_info(struct seq_file m, void data)
	211	{
	212	struct drm_info_node node = (struct drm_info_node ) m->private;
	213	struct drm_device *dev = node->minor->dev;
	214
	215	seq_printf(m, " name size handles refcount\n");
90254ac0	216
cd4f013f	217	mutex_lock(&dev->object_name_lock);
955b12de	218	idr_for_each(&dev->object_name_idr, drm_gem_one_name_info, m);
cd4f013f	219	mutex_unlock(&dev->object_name_lock);
90254ac0	220
955b12de BG	221	return 0;
955b12de BG	222	}