Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * SMP support for R-Mobile / SH-Mobile
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * Copyright (C) 2010  Magnus Damm
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  * Copyright (C) 2011  Paul Mundt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  * Based on vexpress, Copyright (C) 2002 ARM Ltd, All Rights Reserved
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <asm/cacheflush.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <asm/smp_plat.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include "common.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) extern unsigned long shmobile_smp_fn[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) extern unsigned long shmobile_smp_arg[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) extern unsigned long shmobile_smp_mpidr[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) void shmobile_smp_hook(unsigned int cpu, unsigned long fn, unsigned long arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	shmobile_smp_fn[cpu] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	flush_cache_all();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	shmobile_smp_mpidr[cpu] = cpu_logical_map(cpu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	shmobile_smp_fn[cpu] = fn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	shmobile_smp_arg[cpu] = arg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	flush_cache_all();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #ifdef CONFIG_HOTPLUG_CPU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) bool shmobile_smp_cpu_can_disable(unsigned int cpu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	return true; /* Hotplug of any CPU is supported */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #endif