vasilito
dc68054305
- Restore 29 recipe symlinks (libdrm, qtbase, dbus, sddm, pipewire, etc.) - Restore 33 patches (KDE, libdrm, mesa, pipewire, sddm, wireplumber) - Restore 20+ local/scripts (audit, lint, test, build helpers) - Restore src/cook/scheduler.rs, status.rs, gnu-config/ - Restore scripts/patch-inclusion-gate.sh, run_mini1.sh, validate-collision-log.sh - Recover TLC source from HEAD (was overwritten by 0.2.3 checkout) - Recover 11 local/docs plans from HEAD (were overwritten) - Recover qt6-wayland-smoke symlink from HEAD - Fix MOTD: remove garbled ASCII art, use clean text - Update version: 0.2.0 -> 0.2.4 in os-release, motd, config - Reduce filesystem_size: 1536 -> 512 MiB - Add ABSOLUTE RULE to AGENTS.md: never delete/ignore packages - Reduce pcid scheme log verbosity: info -> debug
66 lines
1.7 KiB
C
66 lines
1.7 KiB
C
// 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
|