b698d9178d
The EARLY_AP_STARTUP option initializes non-boot processors much sooner during startup. This adds support for this option on RISC-V and enables it by default for GENERIC. Reviewed by: jhb, markj MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D21661
71 lines
2.3 KiB
C
71 lines
2.3 KiB
C
/*-
|
|
* Copyright (c) 2015 Ruslan Bukin <br@bsdpad.com>
|
|
* All rights reserved.
|
|
*
|
|
* Portions of this software were developed by SRI International and the
|
|
* University of Cambridge Computer Laboratory under DARPA/AFRL contract
|
|
* FA8750-10-C-0237 ("CTSRD"), as part of the DARPA CRASH research programme.
|
|
*
|
|
* Portions of this software were developed by the University of Cambridge
|
|
* Computer Laboratory as part of the CTSRD Project, with support from the
|
|
* UK Higher Education Innovation Fund (HEIF).
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/lock.h>
|
|
#include <sys/mutex.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/sched.h>
|
|
#include <sys/smp.h>
|
|
|
|
void
|
|
cpu_initclocks(void)
|
|
{
|
|
#ifdef EARLY_AP_STARTUP
|
|
struct thread *td;
|
|
int i;
|
|
|
|
td = curthread;
|
|
cpu_initclocks_bsp();
|
|
CPU_FOREACH(i) {
|
|
if (i == 0)
|
|
continue;
|
|
thread_lock(td);
|
|
sched_bind(td, i);
|
|
thread_unlock(td);
|
|
cpu_initclocks_ap();
|
|
}
|
|
thread_lock(td);
|
|
if (sched_is_bound(td))
|
|
sched_unbind(td);
|
|
thread_unlock(td);
|
|
#else
|
|
cpu_initclocks_bsp();
|
|
#endif
|
|
}
|