diff options
| author | Richard Weinberger <[email protected]> | 2016-07-13 17:17:01 +0000 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2016-07-15 10:41:43 +0200 |
| commit | 31487f8328f20fdb302430b020a5d6e8446c1971 (patch) | |
| tree | 73d62b623424d059cd36633bcdf54de2e7d12240 /include/linux | |
| parent | 6b2c28471de550308784560206c3365e5179d42f (diff) | |
smp/cfd: Convert core to hotplug state machine
Install the callbacks via the state machine. They are installed at runtime so
smpcfd_prepare_cpu() needs to be invoked by the boot-CPU.
Signed-off-by: Richard Weinberger <[email protected]>
[ Added the dropped CPU dying case back in. ]
Signed-off-by: Richard Cochran <[email protected]>
Signed-off-by: Anna-Maria Gleixner <[email protected]>
Reviewed-by: Sebastian Andrzej Siewior <[email protected]>
Cc: Davidlohr Bueso <dave@stgolabs>
Cc: Linus Torvalds <[email protected]>
Cc: Mel Gorman <[email protected]>
Cc: Oleg Nesterov <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Rasmus Villemoes <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/cpuhotplug.h | 2 | ||||
| -rw-r--r-- | include/linux/smp.h | 5 |
2 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/cpuhotplug.h b/include/linux/cpuhotplug.h index 78170827a776..b5cf01ace71b 100644 --- a/include/linux/cpuhotplug.h +++ b/include/linux/cpuhotplug.h @@ -18,6 +18,7 @@ enum cpuhp_state { CPUHP_HRTIMERS_PREPARE, CPUHP_PROFILE_PREPARE, CPUHP_X2APIC_PREPARE, + CPUHP_SMPCFD_PREPARE, CPUHP_TIMERS_DEAD, CPUHP_NOTIFY_PREPARE, CPUHP_BRINGUP_CPU, @@ -57,6 +58,7 @@ enum cpuhp_state { CPUHP_AP_ARM_CORESIGHT4_STARTING, CPUHP_AP_ARM64_ISNDEP_STARTING, CPUHP_AP_LEDTRIG_STARTING, + CPUHP_AP_SMPCFD_DYING, CPUHP_AP_X86_TBOOT_DYING, CPUHP_AP_NOTIFY_STARTING, CPUHP_AP_ONLINE, diff --git a/include/linux/smp.h b/include/linux/smp.h index c4414074bd88..eccae4690f41 100644 --- a/include/linux/smp.h +++ b/include/linux/smp.h @@ -196,4 +196,9 @@ extern void arch_enable_nonboot_cpus_end(void); void smp_setup_processor_id(void); +/* SMP core functions */ +int smpcfd_prepare_cpu(unsigned int cpu); +int smpcfd_dead_cpu(unsigned int cpu); +int smpcfd_dying_cpu(unsigned int cpu); + #endif /* __LINUX_SMP_H */ |