xref: /freebsd/sys/dev/hwpmc/hwpmc_powerpc.h (revision 0b3105a37d7adcadcb720112fed4dc4e8040be99)
1 /*-
2  * Copyright (c) 2013 Justin Hibbits
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 AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  *
26  * $FreeBSD$
27  */
28 
29 #ifndef _DEV_HWPMC_POWERPC_H_
30 #define	_DEV_HWPMC_POWERPC_H_ 1
31 
32 #ifdef _KERNEL
33 
34 #define	POWERPC_PMC_CAPS	(PMC_CAP_INTERRUPT | PMC_CAP_USER |     \
35 				 PMC_CAP_SYSTEM | PMC_CAP_EDGE |	\
36 				 PMC_CAP_THRESHOLD | PMC_CAP_READ |	\
37 				 PMC_CAP_WRITE | PMC_CAP_INVERT |	\
38 				 PMC_CAP_QUALIFIER)
39 
40 #define POWERPC_PMC_KERNEL_ENABLE	(0x1 << 30)
41 #define POWERPC_PMC_USER_ENABLE		(0x1 << 31)
42 
43 #define POWERPC_PMC_ENABLE	(POWERPC_PMC_KERNEL_ENABLE | POWERPC_PMC_USER_ENABLE)
44 #define	POWERPC_RELOAD_COUNT_TO_PERFCTR_VALUE(V)	(0x80000000-(V))
45 #define	POWERPC_PERFCTR_VALUE_TO_RELOAD_COUNT(P)	(0x80000000-(P))
46 
47 struct powerpc_cpu {
48 	struct pmc_hw   *pc_ppcpmcs;
49 	enum pmc_class	 pc_class;
50 };
51 
52 extern struct powerpc_cpu **powerpc_pcpu;
53 
54 extern int pmc_e500_initialize(struct pmc_mdep *pmc_mdep);
55 extern int pmc_mpc7xxx_initialize(struct pmc_mdep *pmc_mdep);
56 extern int pmc_ppc970_initialize(struct pmc_mdep *pmc_mdep);
57 
58 extern int powerpc_describe(int cpu, int ri, struct pmc_info *pi, struct pmc **ppmc);
59 extern int powerpc_get_config(int cpu, int ri, struct pmc **ppm);
60 #endif /* _KERNEL */
61 
62 #endif	/* _DEV_HWPMC_POWERPC_H_ */
63