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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2009-06-22 12:08:22 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2009-06-22 12:08:24 +0200 |
| commit | 12310e9c1b9a53896e4df0459039dd125f62aa9b (patch) | |
| tree | 99a629bc1711c72e67ab0e9e86730ef69a563bad | |
| parent | 181d95229b0931ee2ce6aad7348079cbc10e8d05 (diff) | |
| download | linux-12310e9c1b9a53896e4df0459039dd125f62aa9b.tar.bz2 | |
[S390] Enable tick based perf_counter on s390.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| -rw-r--r-- | arch/s390/Kconfig | 1 | ||||
| -rw-r--r-- | arch/s390/include/asm/perf_counter.h | 8 | ||||
| -rw-r--r-- | tools/perf/perf.h | 6 |
3 files changed, 15 insertions, 0 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index a14dba0e4d67..e577839f3073 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -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" diff --git a/arch/s390/include/asm/perf_counter.h b/arch/s390/include/asm/perf_counter.h new file mode 100644 index 000000000000..a7205a3828cb --- /dev/null +++ b/arch/s390/include/asm/perf_counter.h @@ -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) {} diff --git a/tools/perf/perf.h b/tools/perf/perf.h index bccb529dac08..ceb68aa51f7f 100644 --- a/tools/perf/perf.h +++ b/tools/perf/perf.h @@ -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> |