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ARC: perf: cap the number of counters to hardware max of 32

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The number of counters in PCT can never be more than 32 (while
countable conditions could be 100+) for both ARCompact and ARCv2

And while at it update copyright dates.

Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
This commit is contained in:
Vineet Gupta
2015-08-24 13:37:01 +03:00
parent fd0881a24a
commit fb7c572551
2 changed files with 6 additions and 5 deletions
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5
arch/arc/include/asm/perf_event.h
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@@ -1,6 +1,7 @@
/*
* Linux performance counter support for ARC
*
* Copyright (C) 2014-2015 Synopsys, Inc. (www.synopsys.com)
* Copyright (C) 2011-2013 Synopsys, Inc. (www.synopsys.com)
*
* This program is free software; you can redistribute it and/or modify
@@ -12,8 +13,8 @@
#ifndef __ASM_PERF_EVENT_H
#define __ASM_PERF_EVENT_H
/* real maximum varies per CPU, this is the maximum supported by the driver */
#define ARC_PMU_MAX_HWEVENTS 64
/* Max number of counters that PCT block may ever have */
#define ARC_PERF_MAX_COUNTERS 32
#define ARC_REG_CC_BUILD 0xF6
#define ARC_REG_CC_INDEX 0x240