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authorHeiko Carstens <heiko.carstens@de.ibm.com>2010-10-25 16:10:54 +0200
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>2010-10-25 16:10:21 +0200
commit96f4a70d8eb4d746b19d5b5510407c8ff0d00340 (patch)
treec3e9ac41093211cb25c1c963707a159050f81edc /arch/s390/include
parentc30f91b6a264aef9ffb05e13931514c2a988c495 (diff)
downloadlinux-linaro-android-96f4a70d8eb4d746b19d5b5510407c8ff0d00340.tar.gz
[S390] topology: export cpu topology via proc/sysinfo
Export the cpu configuration topology via sysinfo. Two new lines are introduced: CPU Topology HW: 0 0 0 4 6 4 CPU Topology SW: 0 0 0 0 4 24 The HW line describes the cpu topology nesting levels when the maximum nesting level is used to get the corresponding SYSIB. The SW line describes what Linux is actually using. In this case it supports only two levels (CONFIG_SCHED_BOOK off) and therefore the hardware folded the two lower levels in the SYSIB response block. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include')
-rw-r--r--arch/s390/include/asm/topology.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/s390/include/asm/topology.h b/arch/s390/include/asm/topology.h
index 051107a2c5e..c5338834ddb 100644
--- a/arch/s390/include/asm/topology.h
+++ b/arch/s390/include/asm/topology.h
@@ -2,6 +2,7 @@
#define _ASM_S390_TOPOLOGY_H
#include <linux/cpumask.h>
+#include <asm/sysinfo.h>
extern unsigned char cpu_core_id[NR_CPUS];
extern cpumask_t cpu_core_map[NR_CPUS];
@@ -32,6 +33,7 @@ static inline const struct cpumask *cpu_book_mask(unsigned int cpu)
int topology_set_cpu_management(int fc);
void topology_schedule_update(void);
+void store_topology(struct sysinfo_15_1_x *info);
#define POLARIZATION_UNKNWN (-1)
#define POLARIZATION_HRZ (0)