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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2005-11-08 22:08:05 +0300 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2005-11-08 22:08:05 +0300 |
| commit | 37ee16ae93a3e4ae7dd51beb81d249f5f12a55c2 (patch) | |
| tree | a6cf9773ddb5eae9f173c6a9c9d6120faa5688a4 /include/asm-arm/smp.h | |
| parent | 3b6353fae0d7ba772d7eb2651727332c9e9c74ac (diff) | |
| download | linux-37ee16ae93a3e4ae7dd51beb81d249f5f12a55c2.tar.xz | |
[ARM SMP] Add core ARM support for local timers
Add infrastructure for supporting per-cpu local timers to update
the profiling information and update system time accounting.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include/asm-arm/smp.h')
| -rw-r--r-- | include/asm-arm/smp.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/include/asm-arm/smp.h b/include/asm-arm/smp.h index 52e7c8d830b2..5a72e50ca9fc 100644 --- a/include/asm-arm/smp.h +++ b/include/asm-arm/smp.h @@ -92,4 +92,42 @@ extern void platform_cpu_die(unsigned int cpu); extern int platform_cpu_kill(unsigned int cpu); extern void platform_cpu_enable(unsigned int cpu); +#ifdef CONFIG_LOCAL_TIMERS +/* + * Setup a local timer interrupt for a CPU. + */ +extern void local_timer_setup(unsigned int cpu); + +/* + * Stop a local timer interrupt. + */ +extern void local_timer_stop(unsigned int cpu); + +/* + * Platform provides this to acknowledge a local timer IRQ + */ +extern int local_timer_ack(void); + +#else + +static inline void local_timer_setup(unsigned int cpu) +{ +} + +static inline void local_timer_stop(unsigned int cpu) +{ +} + +#endif + +/* + * show local interrupt info + */ +extern void show_local_irqs(struct seq_file *); + +/* + * Called from assembly, this is the local timer IRQ handler + */ +asmlinkage void do_local_timer(struct pt_regs *); + #endif /* ifndef __ASM_ARM_SMP_H */ |