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| author | Thomas Gleixner <tglx@linutronix.de> | 2023-05-12 23:07:35 +0200 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2023-05-15 13:44:58 +0200 |
| commit | 7202e979645715318f2f21a324cb8a506e12fa76 (patch) | |
| tree | 7091ce84b6195bca2dba2965adc314976933290b /arch | |
| parent | b3091f172fed63ee59d1746f088bdcc76a79a79c (diff) | |
| download | lwn-7202e979645715318f2f21a324cb8a506e12fa76.tar.gz lwn-7202e979645715318f2f21a324cb8a506e12fa76.zip | |
csky/smp: Switch to hotplug core state synchronization
Switch to the CPU hotplug core state tracking and synchronization
mechanim. No functional change intended.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Tested-by: Guilherme G. Piccoli <gpiccoli@igalia.com> # Steam Deck
Link: https://lore.kernel.org/r/20230512205256.747254502@linutronix.de
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/csky/Kconfig | 1 | ||||
| -rw-r--r-- | arch/csky/include/asm/smp.h | 2 | ||||
| -rw-r--r-- | arch/csky/kernel/smp.c | 8 |
3 files changed, 4 insertions, 7 deletions
diff --git a/arch/csky/Kconfig b/arch/csky/Kconfig index 4df1f8c9d170..95f1e9bfd1c7 100644 --- a/arch/csky/Kconfig +++ b/arch/csky/Kconfig @@ -96,6 +96,7 @@ config CSKY select HAVE_REGS_AND_STACK_ACCESS_API select HAVE_STACKPROTECTOR select HAVE_SYSCALL_TRACEPOINTS + select HOTPLUG_CORE_SYNC_DEAD if HOTPLUG_CPU select MAY_HAVE_SPARSE_IRQ select MODULES_USE_ELF_RELA if MODULES select OF diff --git a/arch/csky/include/asm/smp.h b/arch/csky/include/asm/smp.h index 668b79ce29ea..d3db334f3196 100644 --- a/arch/csky/include/asm/smp.h +++ b/arch/csky/include/asm/smp.h @@ -23,7 +23,7 @@ void __init set_send_ipi(void (*func)(const struct cpumask *mask), int irq); int __cpu_disable(void); -void __cpu_die(unsigned int cpu); +static inline void __cpu_die(unsigned int cpu) { } #endif /* CONFIG_SMP */ diff --git a/arch/csky/kernel/smp.c b/arch/csky/kernel/smp.c index b12e2c3c387f..8e42352cbf12 100644 --- a/arch/csky/kernel/smp.c +++ b/arch/csky/kernel/smp.c @@ -291,12 +291,8 @@ int __cpu_disable(void) return 0; } -void __cpu_die(unsigned int cpu) +void arch_cpuhp_cleanup_dead_cpu(unsigned int cpu) { - if (!cpu_wait_death(cpu, 5)) { - pr_crit("CPU%u: shutdown failed\n", cpu); - return; - } pr_notice("CPU%u: shutdown\n", cpu); } @@ -304,7 +300,7 @@ void __noreturn arch_cpu_idle_dead(void) { idle_task_exit(); - cpu_report_death(); + cpuhp_ap_report_dead(); while (!secondary_stack) arch_cpu_idle(); |