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authorMike Travis <travis@sgi.com>2007-10-19 20:35:04 +0200
committerThomas Gleixner <tglx@linutronix.de>2007-10-19 20:35:04 +0200
commit92cb7612aee39642d109b8d935ad265e602c0563 (patch)
tree307f4183226f52418bd6842b5d970f03524ad1c1 /include/asm-x86/topology_64.h
parentf1df280f53d7c3ce8613a3b25d1efe009b9860dd (diff)
x86: convert cpuinfo_x86 array to a per_cpu array
cpu_data is currently an array defined using NR_CPUS. This means that we overallocate since we will rarely really use maximum configured cpus. When NR_CPU count is raised to 4096 the size of cpu_data becomes 3,145,728 bytes. These changes were adopted from the sparc64 (and ia64) code. An additional field was added to cpuinfo_x86 to be a non-ambiguous cpu index. This corresponds to the index into a cpumask_t as well as the per_cpu index. It's used in various places like show_cpuinfo(). cpu_data is defined to be the boot_cpu_data structure for the NON-SMP case. Signed-off-by: Mike Travis <travis@sgi.com> Acked-by: Christoph Lameter <clameter@sgi.com> Cc: Andi Kleen <ak@suse.de> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Dmitry Torokhov <dtor@mail.ru> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Mark M. Hoffman <mhoffman@lightlink.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/topology_64.h')
-rw-r--r--include/asm-x86/topology_64.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/asm-x86/topology_64.h b/include/asm-x86/topology_64.h
index 848c17f9222..74c4e184c0d 100644
--- a/include/asm-x86/topology_64.h
+++ b/include/asm-x86/topology_64.h
@@ -56,8 +56,8 @@ extern int __node_distance(int, int);
#endif
#ifdef CONFIG_SMP
-#define topology_physical_package_id(cpu) (cpu_data[cpu].phys_proc_id)
-#define topology_core_id(cpu) (cpu_data[cpu].cpu_core_id)
+#define topology_physical_package_id(cpu) (cpu_data(cpu).phys_proc_id)
+#define topology_core_id(cpu) (cpu_data(cpu).cpu_core_id)
#define topology_core_siblings(cpu) (per_cpu(cpu_core_map, cpu))
#define topology_thread_siblings(cpu) (per_cpu(cpu_sibling_map, cpu))
#define mc_capable() (boot_cpu_data.x86_max_cores > 1)