[mirror_ubuntu-bionic-kernel.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>

/**
 * 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;
	const char *bus_name;
	if (!master)
		return 0;

	bus_name = dev->driver->bus->get_name(dev);
	if (master->unique) {
		seq_printf(m, "%s %s %s\n",
			   bus_name,
			   dev_name(dev->dev), master->unique);
	} else {
		seq_printf(m, "%s %s\n",
			   bus_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,
				   atomic_read(&dma->bufs[i].freelist.count),
				   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/.../vblank" is read.
 */
int drm_vblank_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;
	int crtc;

	mutex_lock(&dev->struct_mutex);
	for (crtc = 0; crtc < dev->num_crtcs; crtc++) {
		seq_printf(m, "CRTC %d enable:     %d\n",
			   crtc, atomic_read(&dev->vblank_refcount[crtc]));
		seq_printf(m, "CRTC %d counter:    %d\n",
			   crtc, drm_vblank_count(dev, crtc));
		seq_printf(m, "CRTC %d last wait:  %d\n",
			   crtc, dev->last_vblank_wait[crtc]);
		seq_printf(m, "CRTC %d in modeset: %d\n",
			   crtc, dev->vblank_inmodeset[crtc]);
	}
	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;

	mutex_lock(&dev->struct_mutex);
	seq_printf(m, "a dev	pid    uid	magic	  ioctls\n\n");
	list_for_each_entry(priv, &dev->filelist, lhead) {
		seq_printf(m, "%c %3d %5d %5d %10u %10lu\n",
			   priv->authenticated ? 'y' : 'n',
			   priv->minor->index,
			   priv->pid,
			   priv->uid, priv->magic, priv->ioctl_count);
	}
	mutex_unlock(&dev->struct_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, "name %d size %zd\n", obj->name, obj->size);

	seq_printf(m, "%6d %8zd %7d %8d\n",
		   obj->name, obj->size,
		   atomic_read(&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");
	idr_for_each(&dev->object_name_idr, drm_gem_one_name_info, m);
	return 0;
}

#if DRM_DEBUG_CODE

int drm_vma_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_vma_entry *pt;
	struct vm_area_struct *vma;
#if defined(__i386__)
	unsigned int pgprot;
#endif

	mutex_lock(&dev->struct_mutex);
	seq_printf(m, "vma use count: %d, high_memory = %pK, 0x%pK\n",
		   atomic_read(&dev->vma_count),
		   high_memory, (void *)virt_to_phys(high_memory));

	list_for_each_entry(pt, &dev->vmalist, head) {
		vma = pt->vma;
		if (!vma)
			continue;
		seq_printf(m,
			   "\n%5d 0x%pK-0x%pK %c%c%c%c%c%c 0x%08lx000",
			   pt->pid,
			   (void *)vma->vm_start, (void *)vma->vm_end,
			   vma->vm_flags & VM_READ ? 'r' : '-',
			   vma->vm_flags & VM_WRITE ? 'w' : '-',
			   vma->vm_flags & VM_EXEC ? 'x' : '-',
			   vma->vm_flags & VM_MAYSHARE ? 's' : 'p',
			   vma->vm_flags & VM_LOCKED ? 'l' : '-',
			   vma->vm_flags & VM_IO ? 'i' : '-',
			   vma->vm_pgoff);

#if defined(__i386__)
		pgprot = pgprot_val(vma->vm_page_prot);
		seq_printf(m, " %c%c%c%c%c%c%c%c%c",
			   pgprot & _PAGE_PRESENT ? 'p' : '-',
			   pgprot & _PAGE_RW ? 'w' : 'r',
			   pgprot & _PAGE_USER ? 'u' : 's',
			   pgprot & _PAGE_PWT ? 't' : 'b',
			   pgprot & _PAGE_PCD ? 'u' : 'c',
			   pgprot & _PAGE_ACCESSED ? 'a' : '-',
			   pgprot & _PAGE_DIRTY ? 'd' : '-',
			   pgprot & _PAGE_PSE ? 'm' : 'k',
			   pgprot & _PAGE_GLOBAL ? 'g' : 'l');
#endif
		seq_printf(m, "\n");
	}
	mutex_unlock(&dev->struct_mutex);
	return 0;
}

#endif
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>
955b12de BG	38
	39	/**
	40	* Called when "/proc/dri/.../name" is read.
	41	*
	42	* Prints the device name together with the bus id if available.
	43	*/
	44	int drm_name_info(struct seq_file m, void data)
	45	{
	46	struct drm_info_node node = (struct drm_info_node ) m->private;
	47	struct drm_minor *minor = node->minor;
	48	struct drm_device *dev = minor->dev;
	49	struct drm_master *master = minor->master;
8410ea3b	50	const char *bus_name;
955b12de BG	51	if (!master)
	52	return 0;
	53
8410ea3b DA	54	bus_name = dev->driver->bus->get_name(dev);
	55	if (master->unique) {
	56	seq_printf(m, "%s %s %s\n",
	57	bus_name,
	58	dev_name(dev->dev), master->unique);
955b12de	59	} else {
8410ea3b DA	60	seq_printf(m, "%s %s\n",
8410ea3b DA	61	bus_name, dev_name(dev->dev));
955b12de	62	}
955b12de BG	63	return 0;
	64	}
	65
	66	/**
	67	* Called when "/proc/dri/.../vm" is read.
	68	*
	69	* Prints information about all mappings in drm_device::maplist.
	70	*/
	71	int drm_vm_info(struct seq_file m, void data)
	72	{
	73	struct drm_info_node node = (struct drm_info_node ) m->private;
	74	struct drm_device *dev = node->minor->dev;
1847a549	75	struct drm_local_map *map;
955b12de BG	76	struct drm_map_list *r_list;
	77
	78	/* Hardcoded from _DRM_FRAME_BUFFER,
	79	_DRM_REGISTERS, _DRM_SHM, _DRM_AGP, and
	80	_DRM_SCATTER_GATHER and _DRM_CONSISTENT */
	81	const char *types[] = { "FB", "REG", "SHM", "AGP", "SG", "PCI" };
	82	const char *type;
	83	int i;
	84
	85	mutex_lock(&dev->struct_mutex);
	86	seq_printf(m, "slot offset size type flags address mtrr\n\n");
	87	i = 0;
	88	list_for_each_entry(r_list, &dev->maplist, head) {
	89	map = r_list->map;
	90	if (!map)
	91	continue;
	92	if (map->type < 0 \|\| map->type > 5)
	93	type = "??";
	94	else
	95	type = types[map->type];
	96
1847a549	97	seq_printf(m, "%4d 0x%016llx 0x%08lx %4.4s 0x%02x 0x%08lx ",
955b12de	98	i,
1847a549	99	(unsigned long long)map->offset,
955b12de BG	100	map->size, type, map->flags,
	101	(unsigned long) r_list->user_token);
	102	if (map->mtrr < 0)
	103	seq_printf(m, "none\n");
	104	else
	105	seq_printf(m, "%4d\n", map->mtrr);
	106	i++;
	107	}
	108	mutex_unlock(&dev->struct_mutex);
	109	return 0;
	110	}
	111
955b12de BG	112	/**
	113	* Called when "/proc/dri/.../bufs" is read.
	114	*/
	115	int drm_bufs_info(struct seq_file m, void data)
	116	{
	117	struct drm_info_node node = (struct drm_info_node ) m->private;
	118	struct drm_device *dev = node->minor->dev;
	119	struct drm_device_dma *dma;
	120	int i, seg_pages;
	121
	122	mutex_lock(&dev->struct_mutex);
	123	dma = dev->dma;
	124	if (!dma) {
	125	mutex_unlock(&dev->struct_mutex);
	126	return 0;
	127	}
	128
	129	seq_printf(m, " o size count free segs pages kB\n\n");
	130	for (i = 0; i <= DRM_MAX_ORDER; i++) {
	131	if (dma->bufs[i].buf_count) {
	132	seg_pages = dma->bufs[i].seg_count * (1 << dma->bufs[i].page_order);
	133	seq_printf(m, "%2d %8d %5d %5d %5d %5d %5ld\n",
	134	i,
	135	dma->bufs[i].buf_size,
	136	dma->bufs[i].buf_count,
	137	atomic_read(&dma->bufs[i].freelist.count),
	138	dma->bufs[i].seg_count,
	139	seg_pages,
	140	seg_pages * PAGE_SIZE / 1024);
	141	}
	142	}
	143	seq_printf(m, "\n");
	144	for (i = 0; i < dma->buf_count; i++) {
	145	if (i && !(i % 32))
	146	seq_printf(m, "\n");
	147	seq_printf(m, " %d", dma->buflist[i]->list);
	148	}
	149	seq_printf(m, "\n");
	150	mutex_unlock(&dev->struct_mutex);
	151	return 0;
	152	}
	153
	154	/**
	155	* Called when "/proc/dri/.../vblank" is read.
	156	*/
	157	int drm_vblank_info(struct seq_file m, void data)
	158	{
	159	struct drm_info_node node = (struct drm_info_node ) m->private;
	160	struct drm_device *dev = node->minor->dev;
	161	int crtc;
	162
	163	mutex_lock(&dev->struct_mutex);
	164	for (crtc = 0; crtc < dev->num_crtcs; crtc++) {
	165	seq_printf(m, "CRTC %d enable: %d\n",
	166	crtc, atomic_read(&dev->vblank_refcount[crtc]));
	167	seq_printf(m, "CRTC %d counter: %d\n",
	168	crtc, drm_vblank_count(dev, crtc));
	169	seq_printf(m, "CRTC %d last wait: %d\n",
	170	crtc, dev->last_vblank_wait[crtc]);
	171	seq_printf(m, "CRTC %d in modeset: %d\n",
	172	crtc, dev->vblank_inmodeset[crtc]);
	173	}
	174	mutex_unlock(&dev->struct_mutex);
	175	return 0;
176	}
177
178	/**
179	* Called when "/proc/dri/.../clients" is read.
180	*
181	*/
182	int drm_clients_info(struct seq_file m, void data)
183	{
184	struct drm_info_node node = (struct drm_info_node ) m->private;
185	struct drm_device *dev = node->minor->dev;
186	struct drm_file *priv;
187
188	mutex_lock(&dev->struct_mutex);
189	seq_printf(m, "a dev pid uid magic ioctls\n\n");
190	list_for_each_entry(priv, &dev->filelist, lhead) {
191	seq_printf(m, "%c %3d %5d %5d %10u %10lu\n",
192	priv->authenticated ? 'y' : 'n',
193	priv->minor->index,
194	priv->pid,
195	priv->uid, priv->magic, priv->ioctl_count);
196	}
197	mutex_unlock(&dev->struct_mutex);
198	return 0;
199	}
200
201
b375de0b	202	static int drm_gem_one_name_info(int id, void ptr, void data)
955b12de BG	203	{
	204	struct drm_gem_object *obj = ptr;
	205	struct seq_file *m = data;
	206
	207	seq_printf(m, "name %d size %zd\n", obj->name, obj->size);
	208
	209	seq_printf(m, "%6d %8zd %7d %8d\n",
	210	obj->name, obj->size,
29d08b3e	211	atomic_read(&obj->handle_count),
955b12de BG	212	atomic_read(&obj->refcount.refcount));
	213	return 0;
	214	}
	215
	216	int drm_gem_name_info(struct seq_file m, void data)
	217	{
	218	struct drm_info_node node = (struct drm_info_node ) m->private;
	219	struct drm_device *dev = node->minor->dev;
	220
	221	seq_printf(m, " name size handles refcount\n");
	222	idr_for_each(&dev->object_name_idr, drm_gem_one_name_info, m);
	223	return 0;
	224	}
	225
955b12de BG	226	#if DRM_DEBUG_CODE
	227
	228	int drm_vma_info(struct seq_file m, void data)
	229	{
	230	struct drm_info_node node = (struct drm_info_node ) m->private;
	231	struct drm_device *dev = node->minor->dev;
	232	struct drm_vma_entry *pt;
	233	struct vm_area_struct *vma;
	234	#if defined(__i386__)
	235	unsigned int pgprot;
	236	#endif
	237
	238	mutex_lock(&dev->struct_mutex);
01e2f533	239	seq_printf(m, "vma use count: %d, high_memory = %pK, 0x%pK\n",
955b12de	240	atomic_read(&dev->vma_count),
01e2f533	241	high_memory, (void *)virt_to_phys(high_memory));
955b12de BG	242
	243	list_for_each_entry(pt, &dev->vmalist, head) {
	244	vma = pt->vma;
	245	if (!vma)
	246	continue;
	247	seq_printf(m,
01e2f533 KC	248	"\n%5d 0x%pK-0x%pK %c%c%c%c%c%c 0x%08lx000",
	249	pt->pid,
	250	(void )vma->vm_start, (void )vma->vm_end,
955b12de BG	251	vma->vm_flags & VM_READ ? 'r' : '-',
	252	vma->vm_flags & VM_WRITE ? 'w' : '-',
	253	vma->vm_flags & VM_EXEC ? 'x' : '-',
	254	vma->vm_flags & VM_MAYSHARE ? 's' : 'p',
	255	vma->vm_flags & VM_LOCKED ? 'l' : '-',
	256	vma->vm_flags & VM_IO ? 'i' : '-',
	257	vma->vm_pgoff);
	258
	259	#if defined(__i386__)
	260	pgprot = pgprot_val(vma->vm_page_prot);
	261	seq_printf(m, " %c%c%c%c%c%c%c%c%c",
	262	pgprot & _PAGE_PRESENT ? 'p' : '-',
	263	pgprot & _PAGE_RW ? 'w' : 'r',
	264	pgprot & _PAGE_USER ? 'u' : 's',
	265	pgprot & _PAGE_PWT ? 't' : 'b',
	266	pgprot & _PAGE_PCD ? 'u' : 'c',
	267	pgprot & _PAGE_ACCESSED ? 'a' : '-',
	268	pgprot & _PAGE_DIRTY ? 'd' : '-',
	269	pgprot & _PAGE_PSE ? 'm' : 'k',
	270	pgprot & _PAGE_GLOBAL ? 'g' : 'l');
	271	#endif
	272	seq_printf(m, "\n");
	273	}
	274	mutex_unlock(&dev->struct_mutex);
	275	return 0;
	276	}
	277
	278	#endif
	279