diff options
| author |   Hendrik Brueckner <brueckner@linux.vnet.ibm.com> | 2012-03-23 11:13:06 +0100 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2012-03-23 11:13:25 +0100 |
| commit | 212188a596d17d519842ef2173150315735b54e1 (patch) | |
| tree | 22f4f391fc9979a231028e45fd11b8a6a6c99232 /arch/s390/include/asm/perf_event.h | |
| parent | [S390] oprofile: Allow multiple users of the measurement alert interrupt (diff) | |
| download | linux-dev-212188a596d17d519842ef2173150315735b54e1.tar.xz linux-dev-212188a596d17d519842ef2173150315735b54e1.zip | |
[S390] perf: add support for s390x CPU counters
Add a perf PMU to access the CPU-measurement counter facility CPUM CF.
CPUM CF provides multiple counter sets for measuring generic,
problem-state, and crypto activaties. Also an extended counter set for
the IBM System z10 and IBM z196 mainframes is available.
Counters from the basic and problem-state counter set are mapped to
generic perf hardware events. Other counters are accessible through
raw events.
For a list of available counter sets and counters, see:
- The Load-Program-Parameter and the CPU-Measurement Facilities (SA23-2260)
- The CPU-Measurement Facility Extended Counters Definition for
z10 and z196 (SA23-2261)
Reviewed-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/perf_event.h')
| -rw-r--r-- | arch/s390/include/asm/perf_event.h | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/arch/s390/include/asm/perf_event.h b/arch/s390/include/asm/perf_event.h index 4eb444edbe49..7941968e12b4 100644 --- a/arch/s390/include/asm/perf_event.h +++ b/arch/s390/include/asm/perf_event.h @@ -1,8 +1,16 @@ /* * Performance event support - s390 specific definitions. * - * Copyright 2009 Martin Schwidefsky, IBM Corporation. + * Copyright IBM Corp. 2009, 2012 + * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com> + * Hendrik Brueckner <brueckner@linux.vnet.ibm.com> */ -/* Empty, just to avoid compiling error */ +#include <asm/cpu_mf.h> +/* CPU-measurement counter facility */ +#define PERF_CPUM_CF_MAX_CTR 160 + +/* Per-CPU flags for PMU states */ +#define PMU_F_RESERVED 0x1000 +#define PMU_F_ENABLED 0x2000 |