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/*
* Copyright (c) 2017-2018, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <amu.h>
#include <amu_private.h>
#include <arch.h>
#include <arch_helpers.h>
#include <assert.h>
int amu_supported(void)
{
uint64_t features;
features = read_id_pfr0() >> ID_PFR0_AMU_SHIFT;
return (features & ID_PFR0_AMU_MASK) == 1;
}
/* Read the group 0 counter identified by the given `idx`. */
uint64_t amu_group0_cnt_read(int idx)
{
assert(amu_supported());
assert(idx >= 0 && idx < AMU_GROUP0_NR_COUNTERS);
return amu_group0_cnt_read_internal(idx);
}
/* Read the group 1 counter identified by the given `idx`. */
uint64_t amu_group1_cnt_read(int idx)
{
assert(amu_supported());
assert(idx >= 0 && idx < AMU_GROUP1_NR_COUNTERS);
return amu_group1_cnt_read_internal(idx);
}
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