diff options
| author |   Mike Travis <travis@sgi.com> | 2007-10-19 20:35:03 +0200 |
|---|---|---|
| committer |   Thomas Gleixner <tglx@linutronix.de> | 2007-10-19 20:35:03 +0200 |
| commit | b6278470b7cdbf2bf6ba7345130d83924451a51a (patch) | |
| tree | 935ed13ace9c4170ec886c0c7a9f34dbbec15844 /include/asm-x86/smp_64.h | |
| parent | x86: convert cpu_to_apicid to be a per cpu variable (diff) | |
| download | linux-dev-b6278470b7cdbf2bf6ba7345130d83924451a51a.tar.xz linux-dev-b6278470b7cdbf2bf6ba7345130d83924451a51a.zip | |
x86: convert cpu_llc_id to be a per cpu variable
Convert cpu_llc_id from a static array sized by NR_CPUS to a per_cpu
variable. This saves sizeof(cpu_llc_id) * NR unused cpus. Access is
mostly from startup and CPU HOTPLUG functions.
Note there's an additional change of the type of cpu_llc_id from int to
u8 for ARCH i386 to correspond with the same type in ARCH x86_64.
Signed-off-by: Mike Travis <travis@sgi.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/asm-x86/smp_64.h')
| -rw-r--r-- | include/asm-x86/smp_64.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/asm-x86/smp_64.h b/include/asm-x86/smp_64.h index f1545704e24e..6f0e0273b646 100644 --- a/include/asm-x86/smp_64.h +++ b/include/asm-x86/smp_64.h @@ -49,7 +49,7 @@ extern int smp_call_function_mask(cpumask_t mask, void (*func)(void *), */ DECLARE_PER_CPU(cpumask_t, cpu_sibling_map); DECLARE_PER_CPU(cpumask_t, cpu_core_map); -extern u8 cpu_llc_id[NR_CPUS]; +DECLARE_PER_CPU(u8, cpu_llc_id); #define SMP_TRAMPOLINE_BASE 0x6000 @@ -121,6 +121,7 @@ static __inline int logical_smp_processor_id(void) #ifdef CONFIG_SMP #define cpu_physical_id(cpu) per_cpu(x86_cpu_to_apicid, cpu) #else +extern unsigned int boot_cpu_id; #define cpu_physical_id(cpu) boot_cpu_id #endif /* !CONFIG_SMP */ #endif |