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authorYinghai Lu <yinghai@kernel.org>2011-01-21 15:29:44 -0800
committerIngo Molnar <mingo@elte.hu>2011-01-26 08:44:49 +0100
commitb3d7336db553d318e7ec042eb50a70d307013339 (patch)
tree217f1b64c5624c20acc8db9cb77e1d34b8891ac5 /arch/x86/include/asm/smp.h
parent6663050edd9c2e8b1e1f55c09459144d84c045f0 (diff)
downloadop-kernel-dev-b3d7336db553d318e7ec042eb50a70d307013339.zip
op-kernel-dev-b3d7336db553d318e7ec042eb50a70d307013339.tar.gz
x86: Move llc_shared_map out of cpu_info
cpu_info is already with per_cpu, We can take llc_shared_map out of cpu_info, and declare it as per_cpu variable directly. So later referencing could be simple and directly instead of diving to find cpu_info at first. Also could make smp_store_cpu_info() much simple to avoid to do save and restore trick. Signed-off-by: Yinghai Lu <yinghai@kernel.org> Cc: Hans Rosenfeld <hans.rosenfeld@amd.com> Cc: Alok N Kataria <akataria@vmware.com> Cc: Stephen Hemminger <shemminger@vyatta.com> Cc: Hans J. Koch <hjk@linutronix.de> Cc: Tejun Heo <tj@kernel.org> Cc: Borislav Petkov <borislav.petkov@amd.com> Cc: Andreas Herrmann <andreas.herrmann3@amd.com> Cc: Robert Richter <robert.richter@amd.com> Cc: Suresh Siddha <suresh.b.siddha@intel.com> LKML-Reference: <4D3A16E8.5020608@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/include/asm/smp.h')
-rw-r--r--arch/x86/include/asm/smp.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h
index 4c2f63c..3597825 100644
--- a/arch/x86/include/asm/smp.h
+++ b/arch/x86/include/asm/smp.h
@@ -23,6 +23,8 @@ extern unsigned int num_processors;
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);
@@ -36,6 +38,11 @@ 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);
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