diff options
author | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
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committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/sh/include/asm/smp.h | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/sh/include/asm/smp.h')
-rw-r--r-- | kernel/arch/sh/include/asm/smp.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/kernel/arch/sh/include/asm/smp.h b/kernel/arch/sh/include/asm/smp.h new file mode 100644 index 000000000..78b0d0f4b --- /dev/null +++ b/kernel/arch/sh/include/asm/smp.h @@ -0,0 +1,78 @@ +#ifndef __ASM_SH_SMP_H +#define __ASM_SH_SMP_H + +#include <linux/bitops.h> +#include <linux/cpumask.h> +#include <asm/smp-ops.h> + +#ifdef CONFIG_SMP + +#include <linux/spinlock.h> +#include <linux/atomic.h> +#include <asm/current.h> +#include <asm/percpu.h> + +#define raw_smp_processor_id() (current_thread_info()->cpu) + +/* Map from cpu id to sequential logical cpu number. */ +extern int __cpu_number_map[NR_CPUS]; +#define cpu_number_map(cpu) __cpu_number_map[cpu] + +/* The reverse map from sequential logical cpu number to cpu id. */ +extern int __cpu_logical_map[NR_CPUS]; +#define cpu_logical_map(cpu) __cpu_logical_map[cpu] + +enum { + SMP_MSG_FUNCTION, + SMP_MSG_RESCHEDULE, + SMP_MSG_FUNCTION_SINGLE, + SMP_MSG_TIMER, + + SMP_MSG_NR, /* must be last */ +}; + +DECLARE_PER_CPU(int, cpu_state); + +void smp_message_recv(unsigned int msg); +void smp_timer_broadcast(const struct cpumask *mask); + +void local_timer_interrupt(void); +void local_timer_setup(unsigned int cpu); +void local_timer_stop(unsigned int cpu); + +void arch_send_call_function_single_ipi(int cpu); +void arch_send_call_function_ipi_mask(const struct cpumask *mask); + +void native_play_dead(void); +void native_cpu_die(unsigned int cpu); +int native_cpu_disable(unsigned int cpu); + +#ifdef CONFIG_HOTPLUG_CPU +void play_dead_common(void); +extern int __cpu_disable(void); + +static inline void __cpu_die(unsigned int cpu) +{ + extern struct plat_smp_ops *mp_ops; /* private */ + + mp_ops->cpu_die(cpu); +} +#endif + +static inline int hard_smp_processor_id(void) +{ + extern struct plat_smp_ops *mp_ops; /* private */ + + if (!mp_ops) + return 0; /* boot CPU */ + + return mp_ops->smp_processor_id(); +} + +#else + +#define hard_smp_processor_id() (0) + +#endif /* CONFIG_SMP */ + +#endif /* __ASM_SH_SMP_H */ |