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
27#ifndef _MACHINE_PMC_MDEP_H_
28#define	_MACHINE_PMC_MDEP_H_
29
30#define	PMC_MDEP_CLASS_INDEX_RISCV	1
31/*
32 * On the RISC-V platform we don't support any PMCs yet.
33 */
34#include <dev/hwpmc/hwpmc_riscv.h>
35
36union pmc_md_op_pmcallocate {
37	uint64_t		__pad[4];
38};
39
40/* Logging */
41#define	PMCLOG_READADDR		PMCLOG_READ64
42#define	PMCLOG_EMITADDR		PMCLOG_EMIT64
43
44#ifdef	_KERNEL
45union pmc_md_pmc {
46	struct pmc_md_riscv_pmc		pm_riscv;
47};
48
49#define	PMC_IN_KERNEL_STACK(va)	kstack_contains(curthread, (va), sizeof(va))
50#define	PMC_IN_KERNEL(va)	INKERNEL((va))
51#define	PMC_IN_USERSPACE(va)	((va) <= VM_MAXUSER_ADDRESS)
52#define	PMC_TRAPFRAME_TO_PC(TF)	((TF)->tf_ra)
53#define	PMC_TRAPFRAME_TO_FP(TF)	(0)	/* stub */
54
55/*
56 * Prototypes
57 */
58struct pmc_mdep *pmc_riscv_initialize(void);
59void	pmc_riscv_finalize(struct pmc_mdep *_md);
60#endif /* _KERNEL */
61
62#endif /* !_MACHINE_PMC_MDEP_H_ */