xref: /freebsd/sys/dev/hwpmc/hwpmc_riscv.h (revision bfcc09ddd422c95a1a2e4e794b63ee54c4902398)
1 /*-
2  * Copyright (c) 2015 Ruslan Bukin <br@bsdpad.com>
3  * All rights reserved.
4  *
5  * This software was developed by the University of Cambridge Computer
6  * Laboratory with support from ARM Ltd.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  * $FreeBSD$
30  */
31 
32 #ifndef _DEV_HWPMC_RISCV_H_
33 #define	_DEV_HWPMC_RISCV_H_
34 
35 #define	RISCV_PMC_CAPS		(PMC_CAP_INTERRUPT | PMC_CAP_USER |	\
36 				 PMC_CAP_SYSTEM | PMC_CAP_EDGE |	\
37 				 PMC_CAP_THRESHOLD | PMC_CAP_READ |	\
38 				 PMC_CAP_WRITE | PMC_CAP_INVERT |	\
39 				 PMC_CAP_QUALIFIER)
40 
41 #define	RISCV_RELOAD_COUNT_TO_PERFCTR_VALUE(R)	(-(R))
42 #define	RISCV_PERFCTR_VALUE_TO_RELOAD_COUNT(P)	(-(P))
43 #define	EVENT_ID_MASK	0xFF
44 
45 #ifdef _KERNEL
46 /* MD extension for 'struct pmc' */
47 struct pmc_md_riscv_pmc {
48 	uint32_t	pm_riscv_evsel;
49 };
50 #endif /* _KERNEL */
51 #endif /* _DEV_HWPMC_RISCV_H_ */
52