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 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: stable/9/sys/dev/hwpmc/hwpmc_xscale.h 200928 2009-12-23 23:16:54Z rpaulo $
27  */
28 
29 #ifndef _DEV_HWPMC_XSCALE_H_
30 #define _DEV_HWPMC_XSCALE_H_
31 
32 #define	XSCALE_PMC_CAPS		(PMC_CAP_INTERRUPT | PMC_CAP_USER |     \
33 				 PMC_CAP_SYSTEM | PMC_CAP_EDGE |	\
34 				 PMC_CAP_THRESHOLD | PMC_CAP_READ |	\
35 				 PMC_CAP_WRITE | PMC_CAP_INVERT |	\
36 				 PMC_CAP_QUALIFIER)
37 
38 
39 #define	XSCALE_PMNC_ENABLE		0x01	/* Enable all Counters */
40 #define	XSCALE_PMNC_PMNRESET		0x02	/* Performance Counter Reset */
41 #define	XSCALE_PMNC_CCNTRESET		0x04	/* Clock Counter Reset */
42 #define	XSCALE_PMNC_CCNTDIV		0x08	/* Clock Counter Divider */
43 /* IXP425 only -- first generation */
44 #define	XSCALE_PMNC_EVT0_MASK		0x00ff000
45 #define	XSCALE_PMNC_EVT1_MASK		0xff00000
46 
47 #define	XSCALE_INTEN_CCNT		0x01	/* Enable Clock Counter Int. */
48 #define	XSCALE_INTEN_PMN0		0x02	/* Enable PMN0 Interrupts */
49 #define	XSCALE_INTEN_PMN1		0x04	/* Enable PMN1 Interrupts */
50 #define	XSCALE_INTEN_PMN2		0x08	/* Enable PMN2 Interrupts */
51 #define	XSCALE_INTEN_PMN3		0x10	/* Enable PMN3 Interrupts */
52 
53 #define	XSCALE_EVTSEL_EVT0_MASK		0x000000ff
54 #define	XSCALE_EVTSEL_EVT1_MASK		0x0000ff00
55 #define	XSCALE_EVTSEL_EVT2_MASK		0x00ff0000
56 #define	XSCALE_EVTSEL_EVT3_MASK		0xff000000
57 
58 #define	XSCALE_FLAG_CCNT_OVERFLOW	0x01
59 #define	XSCALE_FLAG_PMN0_OVERFLOW	0x02
60 #define	XSCALE_FLAG_PMN1_OVERFLOW	0x04
61 #define	XSCALE_FLAG_PMN2_OVERFLOW	0x08
62 #define	XSCALE_FLAG_PMN3_OVERFLOW	0x10
63 
64 #define	XSCALE_RELOAD_COUNT_TO_PERFCTR_VALUE(R)	(-(R))
65 #define	XSCALE_PERFCTR_VALUE_TO_RELOAD_COUNT(P)	(-(P))
66 
67 #ifdef _KERNEL
68 /* MD extension for 'struct pmc' */
69 struct pmc_md_xscale_pmc {
70 	uint32_t	pm_xscale_evsel;
71 };
72 #endif /* _KERNEL */
73 #endif /* _DEV_HWPMC_XSCALE_H_ */
74