1/*-
2 * Copyright (c) 2009 Rui Paulo <rpaulo@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17 * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
18 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
20 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
22 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
23 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
24 * POSSIBILITY OF SUCH DAMAGE.
25 *
26 * $FreeBSD$
27 */
28
29#ifndef _MACHINE_PMC_MDEP_H_
30#define	_MACHINE_PMC_MDEP_H_
31
32#define	PMC_MDEP_CLASS_INDEX_XSCALE	1
33#define	PMC_MDEP_CLASS_INDEX_ARMV7	1
34/*
35 * On the ARM platform we support the following PMCs.
36 *
37 * XSCALE	Intel XScale processors
38 * ARMV7	ARM Cortex-A processors
39 */
40#include <dev/hwpmc/hwpmc_xscale.h>
41#include <dev/hwpmc/hwpmc_armv7.h>
42
43union pmc_md_op_pmcallocate {
44	uint64_t	__pad[4];
45};
46
47/* Logging */
48#define	PMCLOG_READADDR		PMCLOG_READ32
49#define	PMCLOG_EMITADDR		PMCLOG_EMIT32
50
51#ifdef	_KERNEL
52union pmc_md_pmc {
53	struct pmc_md_xscale_pmc	pm_xscale;
54	struct pmc_md_armv7_pmc		pm_armv7;
55};
56
57#define	PMC_IN_KERNEL_STACK(S,START,END)		\
58	((S) >= (START) && (S) < (END))
59#define	PMC_IN_KERNEL(va)	INKERNEL((va))
60
61#define	PMC_IN_USERSPACE(va) ((va) <= VM_MAXUSER_ADDRESS)
62
63#define	PMC_TRAPFRAME_TO_PC(TF)		((TF)->tf_pc)
64#define	PMC_TRAPFRAME_TO_FP(TF)		((TF)->tf_r11)
65#define	PMC_TRAPFRAME_TO_SVC_SP(TF)	((TF)->tf_svc_sp)
66#define	PMC_TRAPFRAME_TO_USR_SP(TF)	((TF)->tf_usr_sp)
67#define	PMC_TRAPFRAME_TO_SVC_LR(TF)	((TF)->tf_svc_lr)
68#define	PMC_TRAPFRAME_TO_USR_LR(TF)	((TF)->tf_usr_lr)
69
70/* Build a fake kernel trapframe from current instruction pointer. */
71#define PMC_FAKE_TRAPFRAME(TF)						\
72	do {								\
73	__asm __volatile("mov %0, pc" : "=r" ((TF)->tf_pc));		\
74	} while (0)
75
76/*
77 * Prototypes
78 */
79struct pmc_mdep *pmc_xscale_initialize(void);
80void		pmc_xscale_finalize(struct pmc_mdep *_md);
81struct pmc_mdep *pmc_armv7_initialize(void);
82void		pmc_armv7_finalize(struct pmc_mdep *_md);
83#endif /* _KERNEL */
84
85#endif /* !_MACHINE_PMC_MDEP_H_ */
86