Contributors: 37
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Ben Gamari |
566 |
23.23% |
2 |
1.89% |
| Thomas Wood |
537 |
22.04% |
2 |
1.89% |
| Maíra Canal |
309 |
12.68% |
4 |
3.77% |
| Dave Airlie |
152 |
6.24% |
16 |
15.09% |
| Linus Torvalds (pre-git) |
116 |
4.76% |
11 |
10.38% |
| Daniel Vetter |
114 |
4.68% |
21 |
19.81% |
| Chris Wilson |
101 |
4.15% |
3 |
2.83% |
| Bhanuprakash Modem |
98 |
4.02% |
2 |
1.89% |
| Noralf Trönnes |
58 |
2.38% |
5 |
4.72% |
| Tomeu Vizoso |
57 |
2.34% |
1 |
0.94% |
| Marcin Ślusarz |
56 |
2.30% |
1 |
0.94% |
| Eric Anholt |
56 |
2.30% |
2 |
1.89% |
| Linus Torvalds |
40 |
1.64% |
4 |
3.77% |
| Jani Nikula |
23 |
0.94% |
4 |
3.77% |
| Doug Anderson |
19 |
0.78% |
1 |
0.94% |
| David Herrmann |
19 |
0.78% |
4 |
3.77% |
| Laurent Pinchart |
18 |
0.74% |
1 |
0.94% |
| Rob Clark |
15 |
0.62% |
1 |
0.94% |
| Greg Kroah-Hartman |
14 |
0.57% |
2 |
1.89% |
| Eric W. Biedermann |
11 |
0.45% |
1 |
0.94% |
| Jiri Slaby |
8 |
0.33% |
1 |
0.94% |
| Sam Ravnborg |
8 |
0.33% |
1 |
0.94% |
| Paul Gortmaker |
5 |
0.21% |
1 |
0.94% |
| Thomas Hellstrom |
5 |
0.21% |
1 |
0.94% |
| Desmond Cheong Zhi Xi |
5 |
0.21% |
1 |
0.94% |
| Michael Tretter |
4 |
0.16% |
1 |
0.94% |
| Luca Barbieri |
4 |
0.16% |
1 |
0.94% |
| Arjan van de Ven |
4 |
0.16% |
1 |
0.94% |
| Damien Lespiau |
3 |
0.12% |
2 |
1.89% |
| Alexey Brodkin |
2 |
0.08% |
1 |
0.94% |
| Jordan Crouse |
2 |
0.08% |
1 |
0.94% |
| Daniel Stone |
2 |
0.08% |
1 |
0.94% |
| Wambui Karuga |
1 |
0.04% |
1 |
0.94% |
| Sachin Kamat |
1 |
0.04% |
1 |
0.94% |
| Stephen Chandler Paul |
1 |
0.04% |
1 |
0.94% |
| Kristian Högsberg |
1 |
0.04% |
1 |
0.94% |
| Peter Zijlstra |
1 |
0.04% |
1 |
0.94% |
| Total |
2436 |
|
106 |
|
/*
* Created: Sun Dec 21 13:08:50 2008 by bgamari@gmail.com
*
* Copyright 2008 Ben Gamari <bgamari@gmail.com>
*
* 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/debugfs.h>
#include <linux/export.h>
#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/uaccess.h>
#include <drm/drm_atomic.h>
#include <drm/drm_auth.h>
#include <drm/drm_client.h>
#include <drm/drm_debugfs.h>
#include <drm/drm_device.h>
#include <drm/drm_drv.h>
#include <drm/drm_edid.h>
#include <drm/drm_file.h>
#include <drm/drm_gem.h>
#include <drm/drm_managed.h>
#include "drm_crtc_internal.h"
#include "drm_internal.h"
#if defined(CONFIG_DEBUG_FS)
/***************************************************
* Initialization, etc.
**************************************************/
static int drm_name_info(struct seq_file *m, void *data)
{
struct drm_debugfs_entry *entry = m->private;
struct drm_device *dev = entry->dev;
struct drm_master *master;
mutex_lock(&dev->master_mutex);
master = dev->master;
seq_printf(m, "%s", dev->driver->name);
if (dev->dev)
seq_printf(m, " dev=%s", dev_name(dev->dev));
if (master && master->unique)
seq_printf(m, " master=%s", master->unique);
if (dev->unique)
seq_printf(m, " unique=%s", dev->unique);
seq_printf(m, "\n");
mutex_unlock(&dev->master_mutex);
return 0;
}
static int drm_clients_info(struct seq_file *m, void *data)
{
struct drm_debugfs_entry *entry = m->private;
struct drm_device *dev = entry->dev;
struct drm_file *priv;
kuid_t uid;
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;
bool is_current_master = drm_is_current_master(priv);
rcu_read_lock(); /* locks pid_task()->comm */
task = pid_task(priv->pid, PIDTYPE_PID);
uid = task ? __task_cred(task)->euid : GLOBAL_ROOT_UID;
seq_printf(m, "%20s %5d %3d %c %c %5d %10u\n",
task ? task->comm : "<unknown>",
pid_vnr(priv->pid),
priv->minor->index,
is_current_master ? 'y' : 'n',
priv->authenticated ? 'y' : 'n',
from_kuid_munged(seq_user_ns(m), 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,
kref_read(&obj->refcount));
return 0;
}
static int drm_gem_name_info(struct seq_file *m, void *data)
{
struct drm_debugfs_entry *entry = m->private;
struct drm_device *dev = entry->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;
}
static const struct drm_debugfs_info drm_debugfs_list[] = {
{"name", drm_name_info, 0},
{"clients", drm_clients_info, 0},
{"gem_names", drm_gem_name_info, DRIVER_GEM},
};
#define DRM_DEBUGFS_ENTRIES ARRAY_SIZE(drm_debugfs_list)
static int drm_debugfs_open(struct inode *inode, struct file *file)
{
struct drm_info_node *node = inode->i_private;
return single_open(file, node->info_ent->show, node);
}
static int drm_debugfs_entry_open(struct inode *inode, struct file *file)
{
struct drm_debugfs_entry *entry = inode->i_private;
struct drm_debugfs_info *node = &entry->file;
return single_open(file, node->show, entry);
}
static const struct file_operations drm_debugfs_entry_fops = {
.owner = THIS_MODULE,
.open = drm_debugfs_entry_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
static const struct file_operations drm_debugfs_fops = {
.owner = THIS_MODULE,
.open = drm_debugfs_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
/**
* drm_debugfs_create_files - Initialize a given set of debugfs files for DRM
* minor
* @files: The array of files to create
* @count: The number of files given
* @root: DRI debugfs dir entry.
* @minor: device minor number
*
* Create a given set of debugfs files represented by an array of
* &struct drm_info_list in the given root directory. These files will be removed
* automatically on drm_debugfs_cleanup().
*/
void drm_debugfs_create_files(const struct drm_info_list *files, int count,
struct dentry *root, struct drm_minor *minor)
{
struct drm_device *dev = minor->dev;
struct drm_info_node *tmp;
int i;
for (i = 0; i < count; i++) {
u32 features = files[i].driver_features;
if (features && !drm_core_check_all_features(dev, features))
continue;
tmp = kmalloc(sizeof(struct drm_info_node), GFP_KERNEL);
if (tmp == NULL)
continue;
tmp->minor = minor;
tmp->dent = debugfs_create_file(files[i].name,
0444, root, tmp,
&drm_debugfs_fops);
tmp->info_ent = &files[i];
mutex_lock(&minor->debugfs_lock);
list_add(&tmp->list, &minor->debugfs_list);
mutex_unlock(&minor->debugfs_lock);
}
}
EXPORT_SYMBOL(drm_debugfs_create_files);
int drm_debugfs_init(struct drm_minor *minor, int minor_id,
struct dentry *root)
{
struct drm_device *dev = minor->dev;
struct drm_debugfs_entry *entry, *tmp;
char name[64];
INIT_LIST_HEAD(&minor->debugfs_list);
mutex_init(&minor->debugfs_lock);
sprintf(name, "%d", minor_id);
minor->debugfs_root = debugfs_create_dir(name, root);
drm_debugfs_add_files(minor->dev, drm_debugfs_list, DRM_DEBUGFS_ENTRIES);
if (drm_drv_uses_atomic_modeset(dev)) {
drm_atomic_debugfs_init(minor);
}
if (drm_core_check_feature(dev, DRIVER_MODESET)) {
drm_framebuffer_debugfs_init(minor);
drm_client_debugfs_init(minor);
}
if (dev->driver->debugfs_init)
dev->driver->debugfs_init(minor);
list_for_each_entry_safe(entry, tmp, &dev->debugfs_list, list) {
debugfs_create_file(entry->file.name, 0444,
minor->debugfs_root, entry, &drm_debugfs_entry_fops);
list_del(&entry->list);
}
return 0;
}
void drm_debugfs_late_register(struct drm_device *dev)
{
struct drm_minor *minor = dev->primary;
struct drm_debugfs_entry *entry, *tmp;
if (!minor)
return;
list_for_each_entry_safe(entry, tmp, &dev->debugfs_list, list) {
debugfs_create_file(entry->file.name, 0444,
minor->debugfs_root, entry, &drm_debugfs_entry_fops);
list_del(&entry->list);
}
}
int drm_debugfs_remove_files(const struct drm_info_list *files, int count,
struct drm_minor *minor)
{
struct list_head *pos, *q;
struct drm_info_node *tmp;
int i;
mutex_lock(&minor->debugfs_lock);
for (i = 0; i < count; i++) {
list_for_each_safe(pos, q, &minor->debugfs_list) {
tmp = list_entry(pos, struct drm_info_node, list);
if (tmp->info_ent == &files[i]) {
debugfs_remove(tmp->dent);
list_del(pos);
kfree(tmp);
}
}
}
mutex_unlock(&minor->debugfs_lock);
return 0;
}
EXPORT_SYMBOL(drm_debugfs_remove_files);
static void drm_debugfs_remove_all_files(struct drm_minor *minor)
{
struct drm_info_node *node, *tmp;
mutex_lock(&minor->debugfs_lock);
list_for_each_entry_safe(node, tmp, &minor->debugfs_list, list) {
debugfs_remove(node->dent);
list_del(&node->list);
kfree(node);
}
mutex_unlock(&minor->debugfs_lock);
}
void drm_debugfs_cleanup(struct drm_minor *minor)
{
if (!minor->debugfs_root)
return;
drm_debugfs_remove_all_files(minor);
debugfs_remove_recursive(minor->debugfs_root);
minor->debugfs_root = NULL;
}
/**
* drm_debugfs_add_file - Add a given file to the DRM device debugfs file list
* @dev: drm device for the ioctl
* @name: debugfs file name
* @show: show callback
* @data: driver-private data, should not be device-specific
*
* Add a given file entry to the DRM device debugfs file list to be created on
* drm_debugfs_init.
*/
void drm_debugfs_add_file(struct drm_device *dev, const char *name,
int (*show)(struct seq_file*, void*), void *data)
{
struct drm_debugfs_entry *entry = drmm_kzalloc(dev, sizeof(*entry), GFP_KERNEL);
if (!entry)
return;
entry->file.name = name;
entry->file.show = show;
entry->file.data = data;
entry->dev = dev;
mutex_lock(&dev->debugfs_mutex);
list_add(&entry->list, &dev->debugfs_list);
mutex_unlock(&dev->debugfs_mutex);
}
EXPORT_SYMBOL(drm_debugfs_add_file);
/**
* drm_debugfs_add_files - Add an array of files to the DRM device debugfs file list
* @dev: drm device for the ioctl
* @files: The array of files to create
* @count: The number of files given
*
* Add a given set of debugfs files represented by an array of
* &struct drm_debugfs_info in the DRM device debugfs file list.
*/
void drm_debugfs_add_files(struct drm_device *dev, const struct drm_debugfs_info *files, int count)
{
int i;
for (i = 0; i < count; i++)
drm_debugfs_add_file(dev, files[i].name, files[i].show, files[i].data);
}
EXPORT_SYMBOL(drm_debugfs_add_files);
static int connector_show(struct seq_file *m, void *data)
{
struct drm_connector *connector = m->private;
seq_printf(m, "%s\n", drm_get_connector_force_name(connector->force));
return 0;
}
static int connector_open(struct inode *inode, struct file *file)
{
struct drm_connector *dev = inode->i_private;
return single_open(file, connector_show, dev);
}
static ssize_t connector_write(struct file *file, const char __user *ubuf,
size_t len, loff_t *offp)
{
struct seq_file *m = file->private_data;
struct drm_connector *connector = m->private;
char buf[12];
if (len > sizeof(buf) - 1)
return -EINVAL;
if (copy_from_user(buf, ubuf, len))
return -EFAULT;
buf[len] = '\0';
if (sysfs_streq(buf, "on"))
connector->force = DRM_FORCE_ON;
else if (sysfs_streq(buf, "digital"))
connector->force = DRM_FORCE_ON_DIGITAL;
else if (sysfs_streq(buf, "off"))
connector->force = DRM_FORCE_OFF;
else if (sysfs_streq(buf, "unspecified"))
connector->force = DRM_FORCE_UNSPECIFIED;
else
return -EINVAL;
return len;
}
static int edid_show(struct seq_file *m, void *data)
{
return drm_edid_override_show(m->private, m);
}
static int edid_open(struct inode *inode, struct file *file)
{
struct drm_connector *dev = inode->i_private;
return single_open(file, edid_show, dev);
}
static ssize_t edid_write(struct file *file, const char __user *ubuf,
size_t len, loff_t *offp)
{
struct seq_file *m = file->private_data;
struct drm_connector *connector = m->private;
char *buf;
int ret;
buf = memdup_user(ubuf, len);
if (IS_ERR(buf))
return PTR_ERR(buf);
if (len == 5 && !strncmp(buf, "reset", 5))
ret = drm_edid_override_reset(connector);
else
ret = drm_edid_override_set(connector, buf, len);
kfree(buf);
return ret ? ret : len;
}
/*
* Returns the min and max vrr vfreq through the connector's debugfs file.
* Example usage: cat /sys/kernel/debug/dri/0/DP-1/vrr_range
*/
static int vrr_range_show(struct seq_file *m, void *data)
{
struct drm_connector *connector = m->private;
if (connector->status != connector_status_connected)
return -ENODEV;
seq_printf(m, "Min: %u\n", connector->display_info.monitor_range.min_vfreq);
seq_printf(m, "Max: %u\n", connector->display_info.monitor_range.max_vfreq);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(vrr_range);
/*
* Returns Connector's max supported bpc through debugfs file.
* Example usage: cat /sys/kernel/debug/dri/0/DP-1/output_bpc
*/
static int output_bpc_show(struct seq_file *m, void *data)
{
struct drm_connector *connector = m->private;
if (connector->status != connector_status_connected)
return -ENODEV;
seq_printf(m, "Maximum: %u\n", connector->display_info.bpc);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(output_bpc);
static const struct file_operations drm_edid_fops = {
.owner = THIS_MODULE,
.open = edid_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
.write = edid_write
};
static const struct file_operations drm_connector_fops = {
.owner = THIS_MODULE,
.open = connector_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
.write = connector_write
};
void drm_debugfs_connector_add(struct drm_connector *connector)
{
struct drm_minor *minor = connector->dev->primary;
struct dentry *root;
if (!minor->debugfs_root)
return;
root = debugfs_create_dir(connector->name, minor->debugfs_root);
connector->debugfs_entry = root;
/* force */
debugfs_create_file("force", 0644, root, connector,
&drm_connector_fops);
/* edid */
debugfs_create_file("edid_override", 0644, root, connector,
&drm_edid_fops);
/* vrr range */
debugfs_create_file("vrr_range", 0444, root, connector,
&vrr_range_fops);
/* max bpc */
debugfs_create_file("output_bpc", 0444, root, connector,
&output_bpc_fops);
if (connector->funcs->debugfs_init)
connector->funcs->debugfs_init(connector, root);
}
void drm_debugfs_connector_remove(struct drm_connector *connector)
{
if (!connector->debugfs_entry)
return;
debugfs_remove_recursive(connector->debugfs_entry);
connector->debugfs_entry = NULL;
}
void drm_debugfs_crtc_add(struct drm_crtc *crtc)
{
struct drm_minor *minor = crtc->dev->primary;
struct dentry *root;
char *name;
name = kasprintf(GFP_KERNEL, "crtc-%d", crtc->index);
if (!name)
return;
root = debugfs_create_dir(name, minor->debugfs_root);
kfree(name);
crtc->debugfs_entry = root;
drm_debugfs_crtc_crc_add(crtc);
}
void drm_debugfs_crtc_remove(struct drm_crtc *crtc)
{
debugfs_remove_recursive(crtc->debugfs_entry);
crtc->debugfs_entry = NULL;
}
#endif /* CONFIG_DEBUG_FS */