diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-08-01 10:53:43 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-08-01 10:53:43 -0700 |
commit | 00e9028a95fb8a4d79f2fb695a853f33ea7d3b57 (patch) | |
tree | 2dea2ae498a6ce57de8890e87185aca5e9f3ad2d /arch/sh/include/asm/smp.h | |
parent | 57b1494d2ba544c62673234da6115c21fac27ffc (diff) | |
parent | 7cb93181629c613ee2b8f4ffe3446f8003074842 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (28 commits)
mm/hugetlb.c must #include <asm/io.h>
video: Fix up hp6xx driver build regressions.
sh: defconfig updates.
sh: Kill off stray mach-rsk7203 reference.
serial: sh-sci: Fix up SH7760/SH7780/SH7785 early printk regression.
sh: Move out individual boards without mach groups.
sh: Make sure AT_SYSINFO_EHDR is exposed to userspace in asm/auxvec.h.
sh: Allow SH-3 and SH-5 to use common headers.
sh: Provide common CPU headers, prune the SH-2 and SH-2A directories.
sh/maple: clean maple bus code
sh: More header path fixups for mach dir refactoring.
sh: Move out the solution engine headers to arch/sh/include/mach-se/
sh: I2C fix for AP325RXA and Migo-R
sh: Shuffle the board directories in to mach groups.
sh: dma-sh: Fix up dreamcast dma.h mach path.
sh: Switch KBUILD_DEFCONFIG to shx3_defconfig.
sh: Add ARCH_DEFCONFIG entries for sh and sh64.
sh: Fix compile error of Solution Engine
sh: Proper __put_user_asm() size mismatch fix.
sh: Stub in a dummy ENTRY_OFFSET for uImage offset calculation.
...
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 00000000000..593343cd26e --- /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 */ |