2009-02-18 01:08:49 +00:00
|
|
|
/*
|
|
|
|
* 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>
|
2019-05-26 17:35:35 +00:00
|
|
|
#include <linux/export.h>
|
2009-02-18 01:08:49 +00:00
|
|
|
#include <linux/seq_file.h>
|
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.
percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.
http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.
* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.
* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.
The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.
2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.
3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.
4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.
5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.
6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).
* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig
8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.
Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24 08:04:11 +00:00
|
|
|
#include <linux/slab.h>
|
2019-05-26 17:35:35 +00:00
|
|
|
#include <linux/uaccess.h>
|
2017-03-22 20:53:36 +00:00
|
|
|
|
2019-05-26 17:35:35 +00:00
|
|
|
#include <drm/drm_atomic.h>
|
|
|
|
#include <drm/drm_auth.h>
|
2018-07-03 16:03:51 +00:00
|
|
|
#include <drm/drm_client.h>
|
2017-03-22 20:53:36 +00:00
|
|
|
#include <drm/drm_debugfs.h>
|
2019-05-26 17:35:35 +00:00
|
|
|
#include <drm/drm_device.h>
|
|
|
|
#include <drm/drm_drv.h>
|
2014-06-18 16:52:33 +00:00
|
|
|
#include <drm/drm_edid.h>
|
2019-05-26 17:35:35 +00:00
|
|
|
#include <drm/drm_file.h>
|
2018-11-21 21:35:10 +00:00
|
|
|
#include <drm/drm_gem.h>
|
2017-03-22 20:53:36 +00:00
|
|
|
|
2016-12-13 23:08:03 +00:00
|
|
|
#include "drm_crtc_internal.h"
|
2019-05-26 17:35:35 +00:00
|
|
|
#include "drm_internal.h"
|
2009-02-18 01:08:49 +00:00
|
|
|
|
|
|
|
#if defined(CONFIG_DEBUG_FS)
|
|
|
|
|
|
|
|
/***************************************************
|
|
|
|
* Initialization, etc.
|
|
|
|
**************************************************/
|
|
|
|
|
2018-11-21 21:35:10 +00:00
|
|
|
static 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;
|
|
|
|
|
|
|
|
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_info_node *node = (struct drm_info_node *) m->private;
|
|
|
|
struct drm_device *dev = node->minor->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;
|
|
|
|
|
|
|
|
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,
|
|
|
|
drm_is_current_master(priv) ? '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_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;
|
|
|
|
}
|
|
|
|
|
2013-10-17 18:09:55 +00:00
|
|
|
static const struct drm_info_list drm_debugfs_list[] = {
|
2009-02-18 01:08:49 +00:00
|
|
|
{"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 const struct file_operations drm_debugfs_fops = {
|
|
|
|
.owner = THIS_MODULE,
|
|
|
|
.open = drm_debugfs_open,
|
|
|
|
.read = seq_read,
|
|
|
|
.llseek = seq_lseek,
|
|
|
|
.release = single_release,
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
2017-03-22 20:54:01 +00:00
|
|
|
* 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
|
2009-02-18 01:08:49 +00:00
|
|
|
*
|
|
|
|
* Create a given set of debugfs files represented by an array of
|
2017-03-22 20:54:01 +00:00
|
|
|
* &struct drm_info_list in the given root directory. These files will be removed
|
2017-01-26 22:56:03 +00:00
|
|
|
* automatically on drm_debugfs_cleanup().
|
2009-02-18 01:08:49 +00:00
|
|
|
*/
|
2020-03-10 13:31:20 +00:00
|
|
|
void drm_debugfs_create_files(const struct drm_info_list *files, int count,
|
|
|
|
struct dentry *root, struct drm_minor *minor)
|
2009-02-18 01:08:49 +00:00
|
|
|
{
|
|
|
|
struct drm_device *dev = minor->dev;
|
|
|
|
struct drm_info_node *tmp;
|
2019-06-14 09:51:10 +00:00
|
|
|
int i;
|
2009-02-18 01:08:49 +00:00
|
|
|
|
|
|
|
for (i = 0; i < count; i++) {
|
|
|
|
u32 features = files[i].driver_features;
|
|
|
|
|
2020-01-23 12:48:01 +00:00
|
|
|
if (features && !drm_core_check_all_features(dev, features))
|
2009-02-18 01:08:49 +00:00
|
|
|
continue;
|
|
|
|
|
2009-03-24 19:23:04 +00:00
|
|
|
tmp = kmalloc(sizeof(struct drm_info_node), GFP_KERNEL);
|
2019-06-14 09:51:10 +00:00
|
|
|
if (tmp == NULL)
|
|
|
|
continue;
|
2009-02-18 01:08:49 +00:00
|
|
|
|
|
|
|
tmp->minor = minor;
|
2019-06-14 09:51:10 +00:00
|
|
|
tmp->dent = debugfs_create_file(files[i].name,
|
|
|
|
S_IFREG | S_IRUGO, root, tmp,
|
|
|
|
&drm_debugfs_fops);
|
2009-02-18 01:08:49 +00:00
|
|
|
tmp->info_ent = &files[i];
|
2011-11-09 21:20:35 +00:00
|
|
|
|
|
|
|
mutex_lock(&minor->debugfs_lock);
|
|
|
|
list_add(&tmp->list, &minor->debugfs_list);
|
|
|
|
mutex_unlock(&minor->debugfs_lock);
|
2009-02-18 01:08:49 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
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;
|
|
|
|
char name[64];
|
|
|
|
|
2011-11-09 21:20:35 +00:00
|
|
|
INIT_LIST_HEAD(&minor->debugfs_list);
|
|
|
|
mutex_init(&minor->debugfs_lock);
|
2009-02-18 01:08:49 +00:00
|
|
|
sprintf(name, "%d", minor_id);
|
|
|
|
minor->debugfs_root = debugfs_create_dir(name, root);
|
|
|
|
|
2020-03-10 13:31:20 +00:00
|
|
|
drm_debugfs_create_files(drm_debugfs_list, DRM_DEBUGFS_ENTRIES,
|
|
|
|
minor->debugfs_root, minor);
|
2009-02-18 01:08:49 +00:00
|
|
|
|
2018-09-17 17:37:33 +00:00
|
|
|
if (drm_drv_uses_atomic_modeset(dev)) {
|
2020-03-10 13:31:20 +00:00
|
|
|
drm_atomic_debugfs_init(minor);
|
2016-11-05 15:08:10 +00:00
|
|
|
}
|
|
|
|
|
2017-11-13 23:12:01 +00:00
|
|
|
if (drm_core_check_feature(dev, DRIVER_MODESET)) {
|
2020-03-10 13:31:20 +00:00
|
|
|
drm_framebuffer_debugfs_init(minor);
|
|
|
|
|
|
|
|
drm_client_debugfs_init(minor);
|
2017-11-07 19:13:40 +00:00
|
|
|
}
|
|
|
|
|
2020-03-10 13:31:21 +00:00
|
|
|
if (dev->driver->debugfs_init)
|
|
|
|
dev->driver->debugfs_init(minor);
|
|
|
|
|
2009-02-18 01:08:49 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2013-10-17 18:09:53 +00:00
|
|
|
int drm_debugfs_remove_files(const struct drm_info_list *files, int count,
|
2009-02-18 01:08:49 +00:00
|
|
|
struct drm_minor *minor)
|
|
|
|
{
|
|
|
|
struct list_head *pos, *q;
|
|
|
|
struct drm_info_node *tmp;
|
|
|
|
int i;
|
|
|
|
|
2011-11-09 21:20:35 +00:00
|
|
|
mutex_lock(&minor->debugfs_lock);
|
2009-02-18 01:08:49 +00:00
|
|
|
for (i = 0; i < count; i++) {
|
2011-11-09 21:20:35 +00:00
|
|
|
list_for_each_safe(pos, q, &minor->debugfs_list) {
|
2009-02-18 01:08:49 +00:00
|
|
|
tmp = list_entry(pos, struct drm_info_node, list);
|
|
|
|
if (tmp->info_ent == &files[i]) {
|
|
|
|
debugfs_remove(tmp->dent);
|
|
|
|
list_del(pos);
|
2009-03-24 19:23:04 +00:00
|
|
|
kfree(tmp);
|
2009-02-18 01:08:49 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2011-11-09 21:20:35 +00:00
|
|
|
mutex_unlock(&minor->debugfs_lock);
|
2009-02-18 01:08:49 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(drm_debugfs_remove_files);
|
|
|
|
|
2017-01-26 22:56:03 +00:00
|
|
|
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);
|
|
|
|
}
|
|
|
|
|
2019-06-13 13:34:39 +00:00
|
|
|
void drm_debugfs_cleanup(struct drm_minor *minor)
|
2009-02-18 01:08:49 +00:00
|
|
|
{
|
|
|
|
if (!minor->debugfs_root)
|
2019-06-13 13:34:39 +00:00
|
|
|
return;
|
2009-02-18 01:08:49 +00:00
|
|
|
|
2017-01-26 22:56:03 +00:00
|
|
|
drm_debugfs_remove_all_files(minor);
|
2009-02-18 01:08:49 +00:00
|
|
|
|
2017-01-26 22:56:03 +00:00
|
|
|
debugfs_remove_recursive(minor->debugfs_root);
|
2009-02-18 01:08:49 +00:00
|
|
|
minor->debugfs_root = NULL;
|
|
|
|
}
|
|
|
|
|
2014-06-18 16:52:32 +00:00
|
|
|
static int connector_show(struct seq_file *m, void *data)
|
|
|
|
{
|
|
|
|
struct drm_connector *connector = m->private;
|
|
|
|
|
2017-02-20 08:51:48 +00:00
|
|
|
seq_printf(m, "%s\n", drm_get_connector_force_name(connector->force));
|
2014-06-18 16:52:32 +00:00
|
|
|
|
|
|
|
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';
|
|
|
|
|
2017-08-17 10:43:07 +00:00
|
|
|
if (sysfs_streq(buf, "on"))
|
2014-06-18 16:52:32 +00:00
|
|
|
connector->force = DRM_FORCE_ON;
|
2017-08-17 10:43:07 +00:00
|
|
|
else if (sysfs_streq(buf, "digital"))
|
2014-06-18 16:52:32 +00:00
|
|
|
connector->force = DRM_FORCE_ON_DIGITAL;
|
2017-08-17 10:43:07 +00:00
|
|
|
else if (sysfs_streq(buf, "off"))
|
2014-06-18 16:52:32 +00:00
|
|
|
connector->force = DRM_FORCE_OFF;
|
2017-08-17 10:43:07 +00:00
|
|
|
else if (sysfs_streq(buf, "unspecified"))
|
2014-06-18 16:52:32 +00:00
|
|
|
connector->force = DRM_FORCE_UNSPECIFIED;
|
|
|
|
else
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
return len;
|
|
|
|
}
|
|
|
|
|
2014-06-18 16:52:33 +00:00
|
|
|
static int edid_show(struct seq_file *m, void *data)
|
|
|
|
{
|
|
|
|
struct drm_connector *connector = m->private;
|
|
|
|
struct drm_property_blob *edid = connector->edid_blob_ptr;
|
|
|
|
|
|
|
|
if (connector->override_edid && edid)
|
|
|
|
seq_write(m, edid->data, edid->length);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
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;
|
|
|
|
struct edid *edid;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
buf = memdup_user(ubuf, len);
|
|
|
|
if (IS_ERR(buf))
|
|
|
|
return PTR_ERR(buf);
|
|
|
|
|
|
|
|
edid = (struct edid *) buf;
|
|
|
|
|
|
|
|
if (len == 5 && !strncmp(buf, "reset", 5)) {
|
|
|
|
connector->override_edid = false;
|
2018-07-09 08:40:06 +00:00
|
|
|
ret = drm_connector_update_edid_property(connector, NULL);
|
2014-06-18 16:52:33 +00:00
|
|
|
} else if (len < EDID_LENGTH ||
|
|
|
|
EDID_LENGTH * (1 + edid->extensions) > len)
|
|
|
|
ret = -EINVAL;
|
|
|
|
else {
|
|
|
|
connector->override_edid = false;
|
2018-07-09 08:40:06 +00:00
|
|
|
ret = drm_connector_update_edid_property(connector, edid);
|
2014-06-18 16:52:33 +00:00
|
|
|
if (!ret)
|
|
|
|
connector->override_edid = true;
|
|
|
|
}
|
|
|
|
|
|
|
|
kfree(buf);
|
|
|
|
|
|
|
|
return (ret) ? ret : len;
|
|
|
|
}
|
|
|
|
|
2020-06-22 14:25:18 +00:00
|
|
|
/*
|
|
|
|
* 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", (u8)connector->display_info.monitor_range.min_vfreq);
|
|
|
|
seq_printf(m, "Max: %u\n", (u8)connector->display_info.monitor_range.max_vfreq);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
DEFINE_SHOW_ATTRIBUTE(vrr_range);
|
|
|
|
|
2014-06-18 16:52:33 +00:00
|
|
|
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
|
|
|
|
};
|
|
|
|
|
|
|
|
|
2014-06-18 16:52:32 +00:00
|
|
|
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
|
|
|
|
};
|
|
|
|
|
2019-06-13 13:34:39 +00:00
|
|
|
void drm_debugfs_connector_add(struct drm_connector *connector)
|
2014-06-18 16:52:32 +00:00
|
|
|
{
|
|
|
|
struct drm_minor *minor = connector->dev->primary;
|
2019-06-13 13:34:39 +00:00
|
|
|
struct dentry *root;
|
2014-06-18 16:52:32 +00:00
|
|
|
|
|
|
|
if (!minor->debugfs_root)
|
2019-06-13 13:34:39 +00:00
|
|
|
return;
|
2014-06-18 16:52:32 +00:00
|
|
|
|
|
|
|
root = debugfs_create_dir(connector->name, minor->debugfs_root);
|
|
|
|
connector->debugfs_entry = root;
|
|
|
|
|
|
|
|
/* force */
|
2019-06-13 13:34:39 +00:00
|
|
|
debugfs_create_file("force", S_IRUGO | S_IWUSR, root, connector,
|
|
|
|
&drm_connector_fops);
|
2014-06-18 16:52:32 +00:00
|
|
|
|
2014-06-18 16:52:33 +00:00
|
|
|
/* edid */
|
2019-06-13 13:34:39 +00:00
|
|
|
debugfs_create_file("edid_override", S_IRUGO | S_IWUSR, root, connector,
|
|
|
|
&drm_edid_fops);
|
2020-06-22 14:25:18 +00:00
|
|
|
|
|
|
|
/* vrr range */
|
|
|
|
debugfs_create_file("vrr_range", S_IRUGO, root, connector,
|
|
|
|
&vrr_range_fops);
|
2014-06-18 16:52:32 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
void drm_debugfs_connector_remove(struct drm_connector *connector)
|
|
|
|
{
|
|
|
|
if (!connector->debugfs_entry)
|
|
|
|
return;
|
|
|
|
|
|
|
|
debugfs_remove_recursive(connector->debugfs_entry);
|
|
|
|
|
|
|
|
connector->debugfs_entry = NULL;
|
|
|
|
}
|
|
|
|
|
2019-06-13 13:34:39 +00:00
|
|
|
void drm_debugfs_crtc_add(struct drm_crtc *crtc)
|
2016-10-06 15:21:06 +00:00
|
|
|
{
|
|
|
|
struct drm_minor *minor = crtc->dev->primary;
|
|
|
|
struct dentry *root;
|
|
|
|
char *name;
|
|
|
|
|
|
|
|
name = kasprintf(GFP_KERNEL, "crtc-%d", crtc->index);
|
|
|
|
if (!name)
|
2019-06-13 13:34:39 +00:00
|
|
|
return;
|
2016-10-06 15:21:06 +00:00
|
|
|
|
|
|
|
root = debugfs_create_dir(name, minor->debugfs_root);
|
|
|
|
kfree(name);
|
|
|
|
|
|
|
|
crtc->debugfs_entry = root;
|
|
|
|
|
2019-06-13 13:34:39 +00:00
|
|
|
drm_debugfs_crtc_crc_add(crtc);
|
2016-10-06 15:21:06 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
void drm_debugfs_crtc_remove(struct drm_crtc *crtc)
|
|
|
|
{
|
|
|
|
debugfs_remove_recursive(crtc->debugfs_entry);
|
|
|
|
crtc->debugfs_entry = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
#endif /* CONFIG_DEBUG_FS */
|