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authorHeiko Carstens <heiko.carstens@de.ibm.com>2008-04-17 07:46:12 +0200
committerHeiko Carstens <heiko.carstens@de.ibm.com>2008-04-17 07:47:01 +0200
commitdbd70fb499952d0ba282f0159dafacfc31d50313 (patch)
tree317ff61d9a98e61f233ac88950f7d9a3d3067965 /include/asm-s390
parent7b758389a29cb7f456ec2d27b7a08cb3cc4e1f1c (diff)
[S390] cpu topology support for s390.
Add s390 backend so we can give the scheduler some hints about the cpu topology. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Diffstat (limited to 'include/asm-s390')
-rw-r--r--include/asm-s390/smp.h2
-rw-r--r--include/asm-s390/topology.h14
2 files changed, 16 insertions, 0 deletions
diff --git a/include/asm-s390/smp.h b/include/asm-s390/smp.h
index c7b74326a52..a464a66c65d 100644
--- a/include/asm-s390/smp.h
+++ b/include/asm-s390/smp.h
@@ -90,6 +90,8 @@ extern void __cpu_die (unsigned int cpu);
extern void cpu_die (void) __attribute__ ((noreturn));
extern int __cpu_up (unsigned int cpu);
+extern struct mutex smp_cpu_state_mutex;
+
extern int smp_call_function_mask(cpumask_t mask, void (*func)(void *),
void *info, int wait);
#endif
diff --git a/include/asm-s390/topology.h b/include/asm-s390/topology.h
index 613aa64019d..3b28a09a210 100644
--- a/include/asm-s390/topology.h
+++ b/include/asm-s390/topology.h
@@ -1,6 +1,20 @@
#ifndef _ASM_S390_TOPOLOGY_H
#define _ASM_S390_TOPOLOGY_H
+#include <linux/cpumask.h>
+
+#define mc_capable() (1)
+
+cpumask_t cpu_coregroup_map(unsigned int cpu);
+
+#ifdef CONFIG_SMP
+void s390_init_cpu_topology(void);
+#else
+static inline void s390_init_cpu_topology(void)
+{
+};
+#endif
+
#include <asm-generic/topology.h>
#endif /* _ASM_S390_TOPOLOGY_H */