Contributors: 13
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Thomas Zimmermann |
164 |
68.91% |
4 |
17.39% |
| Dave Airlie |
19 |
7.98% |
3 |
13.04% |
| Noralf Trönnes |
16 |
6.72% |
2 |
8.70% |
| Jesse Barnes |
11 |
4.62% |
2 |
8.70% |
| David Herrmann |
10 |
4.20% |
2 |
8.70% |
| Daniel Vetter |
6 |
2.52% |
3 |
13.04% |
| Mikael Pettersson |
3 |
1.26% |
1 |
4.35% |
| Chris Wilson |
3 |
1.26% |
1 |
4.35% |
| Paul Gortmaker |
2 |
0.84% |
1 |
4.35% |
| Andrzej Pietrasiewicz |
1 |
0.42% |
1 |
4.35% |
| Wagner Ferenc |
1 |
0.42% |
1 |
4.35% |
| Sam Ravnborg |
1 |
0.42% |
1 |
4.35% |
| Emmanuel Vadot |
1 |
0.42% |
1 |
4.35% |
| Total |
238 |
|
23 |
|
// SPDX-License-Identifier: GPL-2.0 or MIT
#include <linux/sysrq.h>
#include <drm/drm_client_event.h>
#include <drm/drm_device.h>
#include <drm/drm_print.h>
#include "drm_internal.h"
#ifdef CONFIG_MAGIC_SYSRQ
static LIST_HEAD(drm_client_sysrq_dev_list);
static DEFINE_MUTEX(drm_client_sysrq_dev_lock);
/* emergency restore, don't bother with error reporting */
static void drm_client_sysrq_restore_work_fn(struct work_struct *ignored)
{
struct drm_device *dev;
guard(mutex)(&drm_client_sysrq_dev_lock);
list_for_each_entry(dev, &drm_client_sysrq_dev_list, client_sysrq_list) {
if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
continue;
drm_client_dev_restore(dev, true);
}
}
static DECLARE_WORK(drm_client_sysrq_restore_work, drm_client_sysrq_restore_work_fn);
static void drm_client_sysrq_restore_handler(u8 ignored)
{
schedule_work(&drm_client_sysrq_restore_work);
}
static const struct sysrq_key_op drm_client_sysrq_restore_op = {
.handler = drm_client_sysrq_restore_handler,
.help_msg = "force-fb(v)",
.action_msg = "Restore framebuffer console",
};
void drm_client_sysrq_register(struct drm_device *dev)
{
guard(mutex)(&drm_client_sysrq_dev_lock);
if (list_empty(&drm_client_sysrq_dev_list))
register_sysrq_key('v', &drm_client_sysrq_restore_op);
list_add(&dev->client_sysrq_list, &drm_client_sysrq_dev_list);
}
void drm_client_sysrq_unregister(struct drm_device *dev)
{
guard(mutex)(&drm_client_sysrq_dev_lock);
/* remove device from global restore list */
if (!drm_WARN_ON(dev, list_empty(&dev->client_sysrq_list)))
list_del(&dev->client_sysrq_list);
/* no devices left; unregister key */
if (list_empty(&drm_client_sysrq_dev_list))
unregister_sysrq_key('v', &drm_client_sysrq_restore_op);
}
#endif