1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2009 Rui Paulo <rpaulo@FreeBSD.org>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
25 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 *
28 * $FreeBSD$
29 */
30
31 #ifndef _MACHINE_PMC_MDEP_H_
32 #define _MACHINE_PMC_MDEP_H_
33
34 #define PMC_MDEP_CLASS_INDEX_ARMV7 1
35 /*
36 * On the ARM platform we support the following PMCs.
37 *
38 * ARMV7 ARM Cortex-A processors
39 */
40 #include <dev/hwpmc/hwpmc_armv7.h>
41
42 union pmc_md_op_pmcallocate {
43 uint64_t __pad[4];
44 };
45
46 /* Logging */
47 #define PMCLOG_READADDR PMCLOG_READ32
48 #define PMCLOG_EMITADDR PMCLOG_EMIT32
49
50 #ifdef _KERNEL
51 union pmc_md_pmc {
52 struct pmc_md_armv7_pmc pm_armv7;
53 };
54
55 #define PMC_IN_KERNEL_STACK(S,START,END) \
56 ((S) >= (START) && (S) < (END))
57 #define PMC_IN_KERNEL(va) INKERNEL((va))
58
59 #define PMC_IN_USERSPACE(va) ((va) <= VM_MAXUSER_ADDRESS)
60
61 #define PMC_TRAPFRAME_TO_PC(TF) ((TF)->tf_pc)
62 #define PMC_TRAPFRAME_TO_FP(TF) ((TF)->tf_r11)
63 #define PMC_TRAPFRAME_TO_SVC_SP(TF) ((TF)->tf_svc_sp)
64 #define PMC_TRAPFRAME_TO_USR_SP(TF) ((TF)->tf_usr_sp)
65 #define PMC_TRAPFRAME_TO_SVC_LR(TF) ((TF)->tf_svc_lr)
66 #define PMC_TRAPFRAME_TO_USR_LR(TF) ((TF)->tf_usr_lr)
67
68 /* Build a fake kernel trapframe from current instruction pointer. */
69 #define PMC_FAKE_TRAPFRAME(TF) \
70 do { \
71 (TF)->tf_spsr = PSR_SVC32_MODE; \
72 __asm __volatile("mov %0, pc" : "=r" ((TF)->tf_pc)); \
73 __asm __volatile("mov %0, r11" : "=r" ((TF)->tf_r11)); \
74 } while (0)
75
76 /*
77 * Prototypes
78 */
79 struct pmc_mdep *pmc_armv7_initialize(void);
80 void pmc_armv7_finalize(struct pmc_mdep *_md);
81 #endif /* _KERNEL */
82
83 #endif /* !_MACHINE_PMC_MDEP_H_ */
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