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
42union 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
51union 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 */
79struct pmc_mdep *pmc_armv7_initialize(void);
80void		pmc_armv7_finalize(struct pmc_mdep *_md);
81#endif /* _KERNEL */
82
83#endif /* !_MACHINE_PMC_MDEP_H_ */
84