1 | /* |
2 | * Copyright (c) 2017 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, |
11 | * unlawful or unlicensed copies of an Apple operating system, or to |
12 | * circumvent, violate, or enable the circumvention or violation of, any |
13 | * terms of an Apple operating system software license agreement. |
14 | * |
15 | * Please obtain a copy of the License at |
16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. |
17 | * |
18 | * The Original Code and all software distributed under the License are |
19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
23 | * Please see the License for the specific language governing rights and |
24 | * limitations under the License. |
25 | * |
26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
27 | */ |
28 | #ifndef ARM64_MONOTONIC_H |
29 | #define ARM64_MONOTONIC_H |
30 | |
31 | #include <pexpert/arm64/board_config.h> |
32 | |
33 | #if KERNEL_PRIVATE |
34 | |
35 | #include <stdint.h> |
36 | |
37 | #define MT_NDEVS 1 |
38 | |
39 | #define MT_CORE_CYCLES 0 |
40 | #define MT_CORE_INSTRS 1 |
41 | #define MT_CORE_NFIXED 2 |
42 | #define MT_CORE_MAXVAL ((UINT64_C(1) << 48) - 1) |
43 | |
44 | #endif /* KERNEL_PRIVATE */ |
45 | |
46 | #if MACH_KERNEL_PRIVATE |
47 | |
48 | #include <stdbool.h> |
49 | |
50 | #define PMSR "s3_1_c15_c13_0" |
51 | #define PMSR_PMI(REG) ((REG) & ((1 << CORE_NCTRS) - 1)) |
52 | |
53 | |
54 | static inline bool |
55 | mt_pmi_pending(uint64_t * restrict pmsr, uint64_t * restrict upmsr) |
56 | { |
57 | *pmsr = __builtin_arm_rsr64(PMSR); |
58 | bool pmi = PMSR_PMI(*pmsr); |
59 | |
60 | #pragma unused(upmsr) |
61 | |
62 | return pmi; |
63 | } |
64 | |
65 | void mt_fiq(void *cpu, uint64_t pmsr, uint64_t upmsr); |
66 | |
67 | #endif /* MACH_KERNEL_PRIVATE */ |
68 | |
69 | #endif /* !defined(ARM64_MONOTONIC_H) */ |
70 | |