diff options
author | Arjan van de Ven <arjan@linux.intel.com> | 2008-10-17 09:20:26 -0700 |
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committer | Arjan van de Ven <arjan@linux.intel.com> | 2008-10-17 09:20:26 -0700 |
commit | 651dab4264e4ba0e563f5ff56f748127246e9065 (patch) | |
tree | 016630974bdcb00fe529b673f96d389e0fd6dc94 /arch/mips/include/asm/smp.h | |
parent | 40b8606253552109815786e5d4b0de98782d31f5 (diff) | |
parent | 2e532d68a2b3e2aa6b19731501222069735c741c (diff) |
Merge commit 'linus/master' into merge-linus
Conflicts:
arch/x86/kvm/i8254.c
Diffstat (limited to 'arch/mips/include/asm/smp.h')
-rw-r--r-- | arch/mips/include/asm/smp.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/arch/mips/include/asm/smp.h b/arch/mips/include/asm/smp.h new file mode 100644 index 00000000000..0ff5b523ea7 --- /dev/null +++ b/arch/mips/include/asm/smp.h @@ -0,0 +1,63 @@ +/* + * This file is subject to the terms and conditions of the GNU General + * Public License. See the file "COPYING" in the main directory of this + * archive for more details. + * + * Copyright (C) 2000 - 2001 by Kanoj Sarcar (kanoj@sgi.com) + * Copyright (C) 2000 - 2001 by Silicon Graphics, Inc. + * Copyright (C) 2000, 2001, 2002 Ralf Baechle + * Copyright (C) 2000, 2001 Broadcom Corporation + */ +#ifndef __ASM_SMP_H +#define __ASM_SMP_H + +#include <linux/bitops.h> +#include <linux/linkage.h> +#include <linux/threads.h> +#include <linux/cpumask.h> + +#include <asm/atomic.h> +#include <asm/smp-ops.h> + +extern int smp_num_siblings; +extern cpumask_t cpu_sibling_map[]; + +#define raw_smp_processor_id() (current_thread_info()->cpu) + +/* Map from cpu id to sequential logical cpu number. This will only + not be idempotent when cpus failed to come on-line. */ +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] + +#define NO_PROC_ID (-1) + +#define SMP_RESCHEDULE_YOURSELF 0x1 /* XXX braindead */ +#define SMP_CALL_FUNCTION 0x2 + +extern cpumask_t phys_cpu_present_map; +#define cpu_possible_map phys_cpu_present_map + +extern void asmlinkage smp_bootstrap(void); + +/* + * this function sends a 'reschedule' IPI to another CPU. + * it goes straight through and wastes no time serializing + * anything. Worst case is that we lose a reschedule ... + */ +static inline void smp_send_reschedule(int cpu) +{ + extern struct plat_smp_ops *mp_ops; /* private */ + + mp_ops->send_ipi_single(cpu, SMP_RESCHEDULE_YOURSELF); +} + +extern asmlinkage void smp_call_function_interrupt(void); + +extern void arch_send_call_function_single_ipi(int cpu); +extern void arch_send_call_function_ipi(cpumask_t mask); + +#endif /* __ASM_SMP_H */ |