MAJOR=4
MINOR=19
DEVNAME=tty19
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<h1>Index of /configAHR/Jump/0-coastlinecompg/anon_sym/anon/sys/dev/char/4:47/subsystem/tty59/power</h1>
  <table>
   <tr><th valign="top">&nbsp;</th><th><a href="?C=N;O=D">Name</a></th><th><a href="?C=M;O=A">Last modified</a></th><th><a href="?C=S;O=A">Size</a></th><th><a href="?C=D;O=A">Description</a></th></tr>
   <tr><th colspan="5"><hr></th></tr>
<tr><td valign="top">&nbsp;</td><td><a href="/configAHR/Jump/0-coastlinecompg/anon_sym/anon/sys/dev/char/4:47/subsystem/tty59/">Parent Directory</a>       </td><td>&nbsp;</td><td align="right">  - </td><td>&nbsp;</td></tr>
<tr><td valign="top">&nbsp;</td><td><a href="autosuspend_delay_ms">autosuspend_delay_ms</a>   </td><td align="right">2026-10-12 04:14  </td><td align="right">4.0K</td><td>&nbsp;</td></tr>
<tr><td valign="top">&nbsp;</td><td><a href="control">control</a>                </td><td align="right">2026-10-12 04:14  </td><td align="right">4.0K</td><td>&nbsp;</td></tr>
<tr><td valign="top">&nbsp;</td><td><a href="runtime_active_time">runtime_active_time</a>    </td><td align="right">2026-10-12 04:14  </td><td align="right">4.0K</td><td>&nbsp;</td></tr>
<tr><td valign="top">&nbsp;</td><td><a href="runtime_status">runtime_status</a>         </td><td align="right">2026-10-12 04:14  </td><td align="right">4.0K</td><td>&nbsp;</td></tr>
<tr><td valign="top">&nbsp;</td><td><a href="runtime_suspended_time">runtime_suspended_time</a> </td><td align="right">2026-10-12 04:14  </td><td align="right">4.0K</td><td>&nbsp;</td></tr>
   <tr><th colspan="5"><hr></th></tr>
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  *   ˆl–Ü4ý( ©³( 	Å€fàB¦-ÿÃƒd_†I|¥�+ÃÂ Î    /*
 * Copyright 2019 Advanced Micro Devices, Inc.
 *
 * 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 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
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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/semaphore.h>
#include <linux/atomic.h>

/*
 * Reusable 2 PHASE task barrier (rendez-vous point) implementation for N tasks.
 * Based on the Little book of semaphores - https://greenteapress.com/wp/semaphores/
 */



#ifndef DRM_TASK_BARRIER_H_
#define DRM_TASK_BARRIER_H_

/*
 * Represents an instance of a task barrier.
 */
struct task_barrier {
	unsigned int n;
	atomic_t count;
	struct semaphore enter_turnstile;
	struct semaphore exit_turnstile;
};

static inline void task_barrier_signal_turnstile(struct semaphore *turnstile,
						 unsigned int n)
{
	int i;

	for (i = 0 ; i < n; i++)
		up(turnstile);
}

static inline void task_barrier_init(struct task_barrier *tb)
{
	tb->n = 0;
	atomic_set(&tb->count, 0);
	sema_init(&tb->enter_turnstile, 0);
	sema_init(&tb->exit_turnstile, 0);
}

static inline void task_barrier_add_task(struct task_barrier *tb)
{
	tb->n++;
}

static inline void task_barrier_rem_task(struct task_barrier *tb)
{
	tb->n-