1  /*
 2   * Copyright (c) 2012 Apple Inc. All rights reserved.
 3   *
 4   * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
 5   *
 6   * This file contains Original Code and/or Modifications of Original Code
 7   * as defined in and that are subject to the Apple Public Source License
 8   * Version 2.0 (the 'License'). You may not use this file except in
 9   * compliance with the License. The rights granted to you under the License
10   * may not be used to create, or enable the creation or redistribution of,
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12   * circumvent, violate, or enable the circumvention or violation of, any
13   * terms of an Apple operating system software license agreement.
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15   * Please obtain a copy of the License at
16   * http://www.opensource.apple.com/apsl/ and read it before using this file.
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20   * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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27   */
28  #ifndef _MACHINE_ARM64_KPC_H
29  #define _MACHINE_ARM64_KPC_H
30  
31  #include <pexpert/arm64/board_config.h>
32  
33  typedef uint64_t kpc_config_t;
34  
35  #define KPC_ARM64_FIXED_COUNT        (2)
36  #define KPC_ARM64_CONFIGURABLE_COUNT (CORE_NCTRS - KPC_ARM64_FIXED_COUNT)
37  
38  #define KPC_ARM64_COUNTER_WIDTH    (47)
39  #define KPC_ARM64_COUNTER_MASK     ((UINT64_C(1) << KPC_ARM64_COUNTER_WIDTH) - 1)
40  #define KPC_ARM64_COUNTER_OVF_BIT  (47)
41  #define KPC_ARM64_COUNTER_OVF_MASK (UINT64_C(1) << KPC_ARM64_COUNTER_OVF_BIT)
42  
43  /* arm64 uses fixed counter shadows */
44  #define FIXED_COUNTER_SHADOW (1)
45  
46  #define KPC_ARM64_PMC_COUNT (KPC_ARM64_FIXED_COUNT + KPC_ARM64_CONFIGURABLE_COUNT)
47  
48  /* Size to the maximum number of counters we could read from every class in one go */
49  #define KPC_MAX_COUNTERS (KPC_ARM64_FIXED_COUNT + KPC_ARM64_CONFIGURABLE_COUNT + 1)
50  
51  #endif /* _MACHINE_ARM64_KPC_H */