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| author | Thomas Gleixner <tglx@linutronix.de> | 2023-05-12 23:07:38 +0200 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2023-05-15 13:44:59 +0200 |
| commit | 51e0efe1f26ec900ad80025b9faa2bec9575f1b2 (patch) | |
| tree | 62770f0b3269d1c28311378864239df42f298055 /arch/parisc | |
| parent | MIPS: SMP_CPS: Switch to hotplug core state synchronization (diff) | |
| download | linux-51e0efe1f26ec900ad80025b9faa2bec9575f1b2.tar.xz linux-51e0efe1f26ec900ad80025b9faa2bec9575f1b2.zip | |
parisc: 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/20230512205256.859920443@linutronix.de
Diffstat (limited to 'arch/parisc')
| -rw-r--r-- | arch/parisc/Kconfig | 1 | ||||
| -rw-r--r-- | arch/parisc/kernel/process.c | 4 | ||||
| -rw-r--r-- | arch/parisc/kernel/smp.c | 7 |
3 files changed, 6 insertions, 6 deletions
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig index 466a25525364..67a3f98a2c5e 100644 --- a/arch/parisc/Kconfig +++ b/arch/parisc/Kconfig @@ -57,6 +57,7 @@ config PARISC select HAVE_ARCH_SECCOMP_FILTER select HAVE_ARCH_TRACEHOOK select HAVE_REGS_AND_STACK_ACCESS_API + select HOTPLUG_CORE_SYNC_DEAD if HOTPLUG_CPU select GENERIC_SCHED_CLOCK select GENERIC_IRQ_MIGRATION if SMP select HAVE_UNSTABLE_SCHED_CLOCK if SMP diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c index 97c6f875bd0e..66f6543417b7 100644 --- a/arch/parisc/kernel/process.c +++ b/arch/parisc/kernel/process.c @@ -166,8 +166,8 @@ void __noreturn arch_cpu_idle_dead(void) local_irq_disable(); - /* Tell __cpu_die() that this CPU is now safe to dispose of. */ - (void)cpu_report_death(); + /* Tell the core that this CPU is now safe to dispose of. */ + cpuhp_ap_report_dead(); /* Ensure that the cache lines are written out. */ flush_cache_all_local(); diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c index b7fc859fa87d..6b6eaa485946 100644 --- a/arch/parisc/kernel/smp.c +++ b/arch/parisc/kernel/smp.c @@ -500,11 +500,10 @@ int __cpu_disable(void) void __cpu_die(unsigned int cpu) { pdc_cpu_rendezvous_lock(); +} - if (!cpu_wait_death(cpu, 5)) { - pr_crit("CPU%u: cpu didn't die\n", cpu); - return; - } +void arch_cpuhp_cleanup_dead_cpu(unsigned int cpu) +{ pr_info("CPU%u: is shutting down\n", cpu); /* set task's state to interruptible sleep */ |