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AMU: Implement support for aarch64

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The `ENABLE_AMU` build option can be used to enable the
architecturally defined AMU counters.  At present, there is no support
for the auxiliary counter group.

Change-Id: I7ea0c0a00327f463199d1b0a481f01dadb09d312
Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>
This commit is contained in:
Dimitris Papastamos 2017-10-12 13:02:29 +01:00
parent 3a6a9adc55
commit 380559c1c3
7 changed files with 101 additions and 2 deletions
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15
include/lib/extensions/amu.h Normal file
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/*
* Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef __AMU_H__
#define __AMU_H__
/* Enable all group 0 counters */
#define AMU_GROUP0_COUNTERS_MASK 0xf
void amu_enable(int el2_unused);
#endif /* __AMU_H__ */