diff options
| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2016-09-06 20:04:40 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2016-09-19 22:44:26 +0300 |
| commit | 6b8d642239e866debbaa37f25e53837a5d141f33 (patch) | |
| tree | 1cca2bc758c6f4678a004515f0232f2ba98b0179 /arch/ia64/kernel/mca.c | |
| parent | a4fa9cc220fef29162d38a0ada71f5569a116087 (diff) | |
| download | linux-6b8d642239e866debbaa37f25e53837a5d141f33.tar.xz | |
ia64/mca: Convert to hotplug state machine
Install the callbacks via the state machine and let the core invoke
the callbacks on the already online CPUs.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-ia64@vger.kernel.org
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: rt@linutronix.de
Link: http://lkml.kernel.org/r/20160906170457.32393-5-bigeasy@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/ia64/kernel/mca.c')
| -rw-r--r-- | arch/ia64/kernel/mca.c | 26 |
1 files changed, 4 insertions, 22 deletions
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c index eb9220cde76c..c2858865b146 100644 --- a/arch/ia64/kernel/mca.c +++ b/arch/ia64/kernel/mca.c @@ -1890,7 +1890,7 @@ ia64_mca_cpu_init(void *cpu_data) PAGE_KERNEL))); } -static void ia64_mca_cmc_vector_adjust(void *dummy) +static int ia64_mca_cpu_online(unsigned int cpu) { unsigned long flags; @@ -1898,25 +1898,9 @@ static void ia64_mca_cmc_vector_adjust(void *dummy) if (!cmc_polling_enabled) ia64_mca_cmc_vector_enable(NULL); local_irq_restore(flags); + return 0; } -static int mca_cpu_callback(struct notifier_block *nfb, - unsigned long action, - void *hcpu) -{ - switch (action) { - case CPU_ONLINE: - case CPU_ONLINE_FROZEN: - ia64_mca_cmc_vector_adjust(NULL); - break; - } - return NOTIFY_OK; -} - -static struct notifier_block mca_cpu_notifier = { - .notifier_call = mca_cpu_callback -}; - /* * ia64_mca_init * @@ -2111,15 +2095,13 @@ ia64_mca_late_init(void) if (!mca_init) return 0; - register_hotcpu_notifier(&mca_cpu_notifier); - /* Setup the CMCI/P vector and handler */ setup_timer(&cmc_poll_timer, ia64_mca_cmc_poll, 0UL); /* Unmask/enable the vector */ cmc_polling_enabled = 0; - schedule_work(&cmc_enable_work); - + cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "ia64/mca:online", + ia64_mca_cpu_online, NULL); IA64_MCA_DEBUG("%s: CMCI/P setup and enabled.\n", __func__); #ifdef CONFIG_ACPI |