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perf_cpum_cf: Add support for counters available with IBM zEC12

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Increase the maximum number of available counters and check if
the hardware supports the counter.  Support is indicated by the
version of the CPU-measurement counter facility.

Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Hendrik Brueckner
2012-10-15 14:31:29 +02:00
committed by Martin Schwidefsky
parent cec8546638
commit f47586b24c
2 changed files with 6 additions and 2 deletions
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2
arch/s390/include/asm/perf_event.h
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@@ -9,7 +9,7 @@
#include <asm/cpu_mf.h>
/* CPU-measurement counter facility */
#define PERF_CPUM_CF_MAX_CTR 160
#define PERF_CPUM_CF_MAX_CTR 256
/* Per-CPU flags for PMU states */
#define PMU_F_RESERVED 0x1000