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[S390] Enable tick based perf_counter on s390.

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Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Martin Schwidefsky 2009-06-22 12:08:22 +02:00
parent 181d95229b
commit 12310e9c1b
3 changed files with 15 additions and 0 deletions
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1
arch/s390/Kconfig
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@ -94,6 +94,7 @@ config S390
select HAVE_KVM if 64BIT
select HAVE_ARCH_TRACEHOOK
select INIT_ALL_POSSIBLE
select HAVE_PERF_COUNTERS
source "init/Kconfig"

8
arch/s390/include/asm/perf_counter.h Normal file
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@ -0,0 +1,8 @@
/*
* Performance counter support - s390 specific definitions.
*
* Copyright 2009 Martin Schwidefsky, IBM Corporation.
*/
static inline void set_perf_counter_pending(void) {}
static inline void clear_perf_counter_pending(void) {}

6
tools/perf/perf.h
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@ -13,6 +13,12 @@
#define cpu_relax() asm volatile ("" ::: "memory");
#endif
#ifdef __s390__
#include "../../arch/s390/include/asm/unistd.h"
#define rmb() asm volatile("bcr 15,0" ::: "memory")
#define cpu_relax() asm volatile("" ::: "memory");
#endif
#include <time.h>
#include <unistd.h>
#include <sys/types.h>