linux-kernel - [PATCH] x86, topology: Swap semantic of core_siblings and cpu_node

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Message-ID: <20090806172955.GF7198@alberich.amd.com>
Date:	Thu, 6 Aug 2009 19:29:55 +0200
From:	Andreas Herrmann <andreas.herrmann3@....com>
To:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>
CC:	linux-kernel@...r.kernel.org,
	Borislav Petkov <borislav.petkov@....com>,
	Brice Goglin <Brice.Goglin@...ia.fr>
Subject: [PATCH] x86, topology: Swap semantic of core_siblings and
	cpu_node_siblings

Brice Goglin suggested to use the following semantic for
CPU topology information

  Level        | Set of CPUs
 --------------|---------------
  phys_package | cpu_node_siblings
  cpu_node     | core_siblings
  core         | thread_siblings
  thread       | one CPU

Done that.

CC: Brice Goglin <Brice.Goglin@...ia.fr>
Signed-off-by: Andreas Herrmann <andreas.herrmann3@....com>
---
 arch/x86/include/asm/topology.h |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

Patch is on top of the 5 previous patches.
Documentation update will follow.

Regards,
Andreas


diff --git a/arch/x86/include/asm/topology.h b/arch/x86/include/asm/topology.h
index 9eddb69..d53ef91 100644
--- a/arch/x86/include/asm/topology.h
+++ b/arch/x86/include/asm/topology.h
@@ -188,10 +188,10 @@ extern const struct cpumask *cpu_coregroup_mask(int cpu);
 #ifdef ENABLE_TOPO_DEFINES
 #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_cpumask(cpu)		(per_cpu(cpu_core_map, cpu))
+#define topology_core_cpumask(cpu)		(per_cpu(cpu_node_map, cpu))
 #define topology_thread_cpumask(cpu)		(per_cpu(cpu_sibling_map, cpu))
 #define topology_cpu_node_id(cpu)		(cpu_data(cpu).cpu_node_id)
-#define topology_cpu_node_cpumask(cpu)		(per_cpu(cpu_node_map, cpu))
+#define topology_cpu_node_cpumask(cpu)		(per_cpu(cpu_core_map, cpu))
 
 /* indicates that pointers to the topology cpumask_t maps are valid */
 #define arch_provides_topology_pointers		yes
-- 
1.6.3.3



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