diff options
author | Ingo Molnar <mingo@elte.hu> | 2008-08-14 14:58:01 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-08-14 14:58:01 +0200 |
commit | 51ca3c679194e7435c25b8e77b0a73c597e41ae9 (patch) | |
tree | a681dca369607ab0f371d5246b0f75140b860a8a /arch/sh/include/asm/smp.h | |
parent | b55793f7528ce1b73c25b3ac8a86a6cda2a0f9a4 (diff) | |
parent | b635acec48bcaa9183fcbf4e3955616b0d4119b5 (diff) |
Merge branch 'linus' into x86/core
Conflicts:
arch/x86/kernel/genapic_64.c
include/asm-x86/kvm_host.h
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/sh/include/asm/smp.h')
-rw-r--r-- | arch/sh/include/asm/smp.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/arch/sh/include/asm/smp.h b/arch/sh/include/asm/smp.h new file mode 100644 index 000000000000..593343cd26ee --- /dev/null +++ b/arch/sh/include/asm/smp.h @@ -0,0 +1,50 @@ +#ifndef __ASM_SH_SMP_H +#define __ASM_SH_SMP_H + +#include <linux/bitops.h> +#include <linux/cpumask.h> + +#ifdef CONFIG_SMP + +#include <linux/spinlock.h> +#include <asm/atomic.h> +#include <asm/current.h> + +#define raw_smp_processor_id() (current_thread_info()->cpu) +#define hard_smp_processor_id() plat_smp_processor_id() + +/* 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] + +/* I've no idea what the real meaning of this is */ +#define PROC_CHANGE_PENALTY 20 + +#define NO_PROC_ID (-1) + +#define SMP_MSG_FUNCTION 0 +#define SMP_MSG_RESCHEDULE 1 +#define SMP_MSG_FUNCTION_SINGLE 2 +#define SMP_MSG_NR 3 + +void plat_smp_setup(void); +void plat_prepare_cpus(unsigned int max_cpus); +int plat_smp_processor_id(void); +void plat_start_cpu(unsigned int cpu, unsigned long entry_point); +void plat_send_ipi(unsigned int cpu, unsigned int message); +int plat_register_ipi_handler(unsigned int message, + void (*handler)(void *), void *arg); +extern void arch_send_call_function_single_ipi(int cpu); +extern void arch_send_call_function_ipi(cpumask_t mask); + +#else + +#define hard_smp_processor_id() (0) + +#endif /* CONFIG_SMP */ + +#endif /* __ASM_SH_SMP_H */ |