diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2011-05-14 12:06:36 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2011-05-14 12:06:36 +0200 |
| commit | a18f22a968de17b29f2310cdb7ba69163e65ec15 (patch) | |
| tree | a7d56d88fad5e444d7661484109758a2f436129e /arch/x86/include/asm/smp.h | |
| parent | a1c57e0fec53defe745e64417eacdbd3618c3e66 (diff) | |
| parent | 798778b8653f64b7b2162ac70eca10367cff6ce8 (diff) | |
Merge branch 'consolidate-clksrc-i8253' of master.kernel.org:~rmk/linux-2.6-arm into timers/clocksource
Conflicts:
arch/ia64/kernel/cyclone.c
arch/mips/kernel/i8253.c
arch/x86/kernel/i8253.c
Reason: Resolve conflicts so further cleanups do not conflict further
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/include/asm/smp.h')
| -rw-r--r-- | arch/x86/include/asm/smp.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h index 1f4695136776..73b11bc0ae6f 100644 --- a/arch/x86/include/asm/smp.h +++ b/arch/x86/include/asm/smp.h @@ -17,12 +17,24 @@ #endif #include <asm/thread_info.h> #include <asm/cpumask.h> +#include <asm/cpufeature.h> extern int smp_num_siblings; extern unsigned int num_processors; +static inline bool cpu_has_ht_siblings(void) +{ + bool has_siblings = false; +#ifdef CONFIG_SMP + has_siblings = cpu_has_ht && smp_num_siblings > 1; +#endif + return has_siblings; +} + DECLARE_PER_CPU(cpumask_var_t, cpu_sibling_map); DECLARE_PER_CPU(cpumask_var_t, cpu_core_map); +/* cpus sharing the last level cache: */ +DECLARE_PER_CPU(cpumask_var_t, cpu_llc_shared_map); DECLARE_PER_CPU(u16, cpu_llc_id); DECLARE_PER_CPU(int, cpu_number); @@ -36,8 +48,16 @@ static inline struct cpumask *cpu_core_mask(int cpu) return per_cpu(cpu_core_map, cpu); } +static inline struct cpumask *cpu_llc_shared_mask(int cpu) +{ + return per_cpu(cpu_llc_shared_map, cpu); +} + DECLARE_EARLY_PER_CPU(u16, x86_cpu_to_apicid); DECLARE_EARLY_PER_CPU(u16, x86_bios_cpu_apicid); +#if defined(CONFIG_X86_LOCAL_APIC) && defined(CONFIG_X86_32) +DECLARE_EARLY_PER_CPU(int, x86_cpu_to_logical_apicid); +#endif /* Static state in head.S used to set up a CPU */ extern unsigned long stack_start; /* Initial stack pointer address */ |