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Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzi...
[net-next-2.6.git] / arch / arm / include / asm / perf_event.h
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1/*
2 * linux/arch/arm/include/asm/perf_event.h
3 *
4 * Copyright (C) 2009 picoChip Designs Ltd, Jamie Iles
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 *
10 */
11
12#ifndef __ARM_PERF_EVENT_H__
13#define __ARM_PERF_EVENT_H__
14
15/*
16 * NOP: on *most* (read: all supported) ARM platforms, the performance
17 * counter interrupts are regular interrupts and not an NMI. This
18 * means that when we receive the interrupt we can call
19 * perf_event_do_pending() that handles all of the work with
25d35847 20 * interrupts disabled.
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21 */
22static inline void
23set_perf_event_pending(void)
24{
25}
26
27/* ARM performance counters start from 1 (in the cp15 accesses) so use the
28 * same indexes here for consistency. */
29#define PERF_EVENT_INDEX_OFFSET 1
30
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31/* ARM perf PMU IDs for use by internal perf clients. */
32enum arm_perf_pmu_ids {
33 ARM_PERF_PMU_ID_XSCALE1 = 0,
34 ARM_PERF_PMU_ID_XSCALE2,
35 ARM_PERF_PMU_ID_V6,
36 ARM_PERF_PMU_ID_V6MP,
37 ARM_PERF_PMU_ID_CA8,
38 ARM_PERF_PMU_ID_CA9,
39 ARM_NUM_PMU_IDS,
40};
41
42extern enum arm_perf_pmu_ids
43armpmu_get_pmu_id(void);
44
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45extern int
46armpmu_get_max_events(void);
47
7ada189f 48#endif /* __ARM_PERF_EVENT_H__ */