1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
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
29#ifndef _MACHINE_PMC_MDEP_H_
30#define _MACHINE_PMC_MDEP_H_
31
32#define PMC_MDEP_CLASS_INDEX_ARMV7 1
33/*
34 * On the ARM platform we support the following PMCs.
35 *
36 * ARMV7 ARM Cortex-A processors
37 */
38#include <dev/hwpmc/hwpmc_armv7.h>
39
40union pmc_md_op_pmcallocate {
41 uint64_t __pad[4];
42};
43
44/* Logging */
45#define PMCLOG_READADDR PMCLOG_READ32
46#define PMCLOG_EMITADDR PMCLOG_EMIT32
47
48#ifdef _KERNEL
49union pmc_md_pmc {
50 struct pmc_md_armv7_pmc pm_armv7;
51};
52
53#define PMC_IN_KERNEL_STACK(va) kstack_contains(curthread, (va), sizeof(va))
54#define PMC_IN_KERNEL(va) INKERNEL((va))
55#define PMC_IN_USERSPACE(va) ((va) <= VM_MAXUSER_ADDRESS)
56
57#define PMC_TRAPFRAME_TO_PC(TF) ((TF)->tf_pc)
58#define PMC_TRAPFRAME_TO_FP(TF) ((TF)->tf_r11)
59#define PMC_TRAPFRAME_TO_SVC_SP(TF) ((TF)->tf_svc_sp)
60#define PMC_TRAPFRAME_TO_USR_SP(TF) ((TF)->tf_usr_sp)
61#define PMC_TRAPFRAME_TO_SVC_LR(TF) ((TF)->tf_svc_lr)
62#define PMC_TRAPFRAME_TO_USR_LR(TF) ((TF)->tf_usr_lr)
63
64/* Build a fake kernel trapframe from current instruction pointer. */
65#define PMC_FAKE_TRAPFRAME(TF) \
66 do { \
67 (TF)->tf_spsr = PSR_SVC32_MODE; \
68 __asm __volatile("mov %0, pc" : "=r" ((TF)->tf_pc)); \
69 __asm __volatile("mov %0, r11" : "=r" ((TF)->tf_r11)); \
70 } while (0)
71
72/*
73 * Prototypes
74 */
75struct pmc_mdep *pmc_armv7_initialize(void);
76void pmc_armv7_finalize(struct pmc_mdep *_md);
77#endif /* _KERNEL */
78
79#endif /* !_MACHINE_PMC_MDEP_H_ */