^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) * arch/sh/kernel/smp.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * SMP support for the SuperH processors.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Copyright (C) 2002 - 2010 Paul Mundt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Copyright (C) 2006 - 2007 Akio Idehara
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/err.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/cache.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/cpumask.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/delay.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/spinlock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/mm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/cpu.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/sched/mm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/sched/hotplug.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/atomic.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <linux/clockchips.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <asm/processor.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <asm/mmu_context.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include <asm/smp.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include <asm/cacheflush.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #include <asm/sections.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #include <asm/setup.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) int __cpu_number_map[NR_CPUS]; /* Map physical to logical */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) int __cpu_logical_map[NR_CPUS]; /* Map logical to physical */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) struct plat_smp_ops *mp_ops = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) /* State of each CPU */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) DEFINE_PER_CPU(int, cpu_state) = { 0 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) void register_smp_ops(struct plat_smp_ops *ops)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) if (mp_ops)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) printk(KERN_WARNING "Overriding previously set SMP ops\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) mp_ops = ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) static inline void smp_store_cpu_info(unsigned int cpu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) struct sh_cpuinfo *c = cpu_data + cpu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) memcpy(c, &boot_cpu_data, sizeof(struct sh_cpuinfo));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) c->loops_per_jiffy = loops_per_jiffy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) void __init smp_prepare_cpus(unsigned int max_cpus)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) unsigned int cpu = smp_processor_id();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) init_new_context(current, &init_mm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) current_thread_info()->cpu = cpu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) mp_ops->prepare_cpus(max_cpus);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) #ifndef CONFIG_HOTPLUG_CPU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) init_cpu_present(cpu_possible_mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) void __init smp_prepare_boot_cpu(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) unsigned int cpu = smp_processor_id();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) __cpu_number_map[0] = cpu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) __cpu_logical_map[0] = cpu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) set_cpu_online(cpu, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) set_cpu_possible(cpu, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) per_cpu(cpu_state, cpu) = CPU_ONLINE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) #ifdef CONFIG_HOTPLUG_CPU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) void native_cpu_die(unsigned int cpu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) unsigned int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) for (i = 0; i < 10; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) smp_rmb();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) if (per_cpu(cpu_state, cpu) == CPU_DEAD) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) if (system_state == SYSTEM_RUNNING)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) pr_info("CPU %u is now offline\n", cpu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) msleep(100);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) pr_err("CPU %u didn't die...\n", cpu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) int native_cpu_disable(unsigned int cpu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) return cpu == 0 ? -EPERM : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) void play_dead_common(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) idle_task_exit();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) irq_ctx_exit(raw_smp_processor_id());
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) mb();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) __this_cpu_write(cpu_state, CPU_DEAD);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) local_irq_disable();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) void native_play_dead(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) play_dead_common();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) int __cpu_disable(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) unsigned int cpu = smp_processor_id();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) ret = mp_ops->cpu_disable(cpu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) * Take this CPU offline. Once we clear this, we can't return,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) * and we must not schedule until we're ready to give up the cpu.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) set_cpu_online(cpu, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) * OK - migrate IRQs away from this CPU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) migrate_irqs();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) * Flush user cache and TLB mappings, and then remove this CPU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) * from the vm mask set of all processes.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) flush_cache_all();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) #ifdef CONFIG_MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) local_flush_tlb_all();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) clear_tasks_mm_cpumask(cpu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) #else /* ... !CONFIG_HOTPLUG_CPU */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) int native_cpu_disable(unsigned int cpu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) return -ENOSYS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) void native_cpu_die(unsigned int cpu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) /* We said "no" in __cpu_disable */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) BUG();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) void native_play_dead(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) BUG();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) asmlinkage void start_secondary(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) unsigned int cpu = smp_processor_id();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) struct mm_struct *mm = &init_mm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) enable_mmu();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) mmgrab(mm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) mmget(mm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) current->active_mm = mm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) #ifdef CONFIG_MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) enter_lazy_tlb(mm, current);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) local_flush_tlb_all();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) per_cpu_trap_init();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) notify_cpu_starting(cpu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) local_irq_enable();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) calibrate_delay();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) smp_store_cpu_info(cpu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) set_cpu_online(cpu, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) per_cpu(cpu_state, cpu) = CPU_ONLINE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) cpu_startup_entry(CPUHP_AP_ONLINE_IDLE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) extern struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) unsigned long sp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) unsigned long bss_start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) unsigned long bss_end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) void *start_kernel_fn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) void *cpu_init_fn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) void *thread_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) } stack_start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) int __cpu_up(unsigned int cpu, struct task_struct *tsk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) unsigned long timeout;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) per_cpu(cpu_state, cpu) = CPU_UP_PREPARE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) /* Fill in data in head.S for secondary cpus */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) stack_start.sp = tsk->thread.sp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) stack_start.thread_info = tsk->stack;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) stack_start.bss_start = 0; /* don't clear bss for secondary cpus */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) stack_start.start_kernel_fn = start_secondary;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) flush_icache_range((unsigned long)&stack_start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) (unsigned long)&stack_start + sizeof(stack_start));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) wmb();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) mp_ops->start_cpu(cpu, (unsigned long)_stext);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) timeout = jiffies + HZ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) while (time_before(jiffies, timeout)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) if (cpu_online(cpu))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) udelay(10);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) barrier();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) if (cpu_online(cpu))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) return -ENOENT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) void __init smp_cpus_done(unsigned int max_cpus)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) unsigned long bogosum = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) int cpu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) for_each_online_cpu(cpu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) bogosum += cpu_data[cpu].loops_per_jiffy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) printk(KERN_INFO "SMP: Total of %d processors activated "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) "(%lu.%02lu BogoMIPS).\n", num_online_cpus(),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) bogosum / (500000/HZ),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) (bogosum / (5000/HZ)) % 100);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) void smp_send_reschedule(int cpu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) mp_ops->send_ipi(cpu, SMP_MSG_RESCHEDULE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) void smp_send_stop(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) smp_call_function(stop_this_cpu, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) void arch_send_call_function_ipi_mask(const struct cpumask *mask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) int cpu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) for_each_cpu(cpu, mask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) mp_ops->send_ipi(cpu, SMP_MSG_FUNCTION);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) void arch_send_call_function_single_ipi(int cpu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) mp_ops->send_ipi(cpu, SMP_MSG_FUNCTION_SINGLE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) #ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) void tick_broadcast(const struct cpumask *mask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) int cpu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) for_each_cpu(cpu, mask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) mp_ops->send_ipi(cpu, SMP_MSG_TIMER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) static void ipi_timer(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) irq_enter();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) tick_receive_broadcast();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) irq_exit();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) void smp_message_recv(unsigned int msg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) switch (msg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) case SMP_MSG_FUNCTION:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) generic_smp_call_function_interrupt();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) case SMP_MSG_RESCHEDULE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) scheduler_ipi();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) case SMP_MSG_FUNCTION_SINGLE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) generic_smp_call_function_single_interrupt();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) #ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) case SMP_MSG_TIMER:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) ipi_timer();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) printk(KERN_WARNING "SMP %d: %s(): unknown IPI %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) smp_processor_id(), __func__, msg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) /* Not really SMP stuff ... */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) int setup_profiling_timer(unsigned int multiplier)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) #ifdef CONFIG_MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) static void flush_tlb_all_ipi(void *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) local_flush_tlb_all();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) void flush_tlb_all(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) on_each_cpu(flush_tlb_all_ipi, 0, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) static void flush_tlb_mm_ipi(void *mm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) local_flush_tlb_mm((struct mm_struct *)mm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) * The following tlb flush calls are invoked when old translations are
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) * being torn down, or pte attributes are changing. For single threaded
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) * address spaces, a new context is obtained on the current cpu, and tlb
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) * context on other cpus are invalidated to force a new context allocation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) * at switch_mm time, should the mm ever be used on other cpus. For
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) * multithreaded address spaces, intercpu interrupts have to be sent.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) * Another case where intercpu interrupts are required is when the target
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) * mm might be active on another cpu (eg debuggers doing the flushes on
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) * behalf of debugees, kswapd stealing pages from another process etc).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) * Kanoj 07/00.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) void flush_tlb_mm(struct mm_struct *mm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) preempt_disable();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) if ((atomic_read(&mm->mm_users) != 1) || (current->mm != mm)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) smp_call_function(flush_tlb_mm_ipi, (void *)mm, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) for_each_online_cpu(i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) if (smp_processor_id() != i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) cpu_context(i, mm) = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) local_flush_tlb_mm(mm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) preempt_enable();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) struct flush_tlb_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) struct vm_area_struct *vma;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) unsigned long addr1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) unsigned long addr2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) static void flush_tlb_range_ipi(void *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) struct flush_tlb_data *fd = (struct flush_tlb_data *)info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) local_flush_tlb_range(fd->vma, fd->addr1, fd->addr2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) void flush_tlb_range(struct vm_area_struct *vma,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) unsigned long start, unsigned long end)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) struct mm_struct *mm = vma->vm_mm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) preempt_disable();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) if ((atomic_read(&mm->mm_users) != 1) || (current->mm != mm)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) struct flush_tlb_data fd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) fd.vma = vma;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) fd.addr1 = start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) fd.addr2 = end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) smp_call_function(flush_tlb_range_ipi, (void *)&fd, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) for_each_online_cpu(i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) if (smp_processor_id() != i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) cpu_context(i, mm) = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) local_flush_tlb_range(vma, start, end);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) preempt_enable();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) static void flush_tlb_kernel_range_ipi(void *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) struct flush_tlb_data *fd = (struct flush_tlb_data *)info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) local_flush_tlb_kernel_range(fd->addr1, fd->addr2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) void flush_tlb_kernel_range(unsigned long start, unsigned long end)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) struct flush_tlb_data fd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) fd.addr1 = start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) fd.addr2 = end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) on_each_cpu(flush_tlb_kernel_range_ipi, (void *)&fd, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) static void flush_tlb_page_ipi(void *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) struct flush_tlb_data *fd = (struct flush_tlb_data *)info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) local_flush_tlb_page(fd->vma, fd->addr1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) void flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) preempt_disable();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) if ((atomic_read(&vma->vm_mm->mm_users) != 1) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) (current->mm != vma->vm_mm)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) struct flush_tlb_data fd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) fd.vma = vma;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) fd.addr1 = page;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) smp_call_function(flush_tlb_page_ipi, (void *)&fd, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) for_each_online_cpu(i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) if (smp_processor_id() != i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) cpu_context(i, vma->vm_mm) = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) local_flush_tlb_page(vma, page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) preempt_enable();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) static void flush_tlb_one_ipi(void *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) struct flush_tlb_data *fd = (struct flush_tlb_data *)info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) local_flush_tlb_one(fd->addr1, fd->addr2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) void flush_tlb_one(unsigned long asid, unsigned long vaddr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) struct flush_tlb_data fd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) fd.addr1 = asid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) fd.addr2 = vaddr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) smp_call_function(flush_tlb_one_ipi, (void *)&fd, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) local_flush_tlb_one(asid, vaddr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) #endif
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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