212188a596
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>
17 lines
416 B
C
17 lines
416 B
C
/*
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* Performance event support - s390 specific definitions.
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*
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* Copyright IBM Corp. 2009, 2012
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* Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
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* Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
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*/
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#include <asm/cpu_mf.h>
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/* CPU-measurement counter facility */
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#define PERF_CPUM_CF_MAX_CTR 160
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/* Per-CPU flags for PMU states */
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#define PMU_F_RESERVED 0x1000
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#define PMU_F_ENABLED 0x2000
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