mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-25 05:17:28 +07:00
c942fddf87
Based on 3 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version [author] [graeme] [gregory] [gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema] [hk] [hemahk]@[ti] [com] this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1105 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
41 lines
941 B
C
41 lines
941 B
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* SMP operations for Alpine platform.
|
|
*
|
|
* Copyright (C) 2015 Annapurna Labs Ltd.
|
|
*/
|
|
|
|
#include <linux/init.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/io.h>
|
|
#include <linux/of.h>
|
|
|
|
#include <asm/smp_plat.h>
|
|
|
|
#include "alpine_cpu_pm.h"
|
|
|
|
static int alpine_boot_secondary(unsigned int cpu, struct task_struct *idle)
|
|
{
|
|
phys_addr_t addr;
|
|
|
|
addr = __pa_symbol(secondary_startup);
|
|
|
|
if (addr > (phys_addr_t)(uint32_t)(-1)) {
|
|
pr_err("FAIL: resume address over 32bit (%pa)", &addr);
|
|
return -EINVAL;
|
|
}
|
|
|
|
return alpine_cpu_wakeup(cpu_logical_map(cpu), (uint32_t)addr);
|
|
}
|
|
|
|
static void __init alpine_smp_prepare_cpus(unsigned int max_cpus)
|
|
{
|
|
alpine_cpu_pm_init();
|
|
}
|
|
|
|
static const struct smp_operations alpine_smp_ops __initconst = {
|
|
.smp_prepare_cpus = alpine_smp_prepare_cpus,
|
|
.smp_boot_secondary = alpine_boot_secondary,
|
|
};
|
|
CPU_METHOD_OF_DECLARE(alpine_smp, "al,alpine-smp", &alpine_smp_ops);
|