hwpmc_xscale.h revision 200928 
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: head/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' */
69struct pmc_md_xscale_pmc {
70	uint32_t	pm_xscale_evsel;
71};
72#endif /* _KERNEL */
73#endif /* _DEV_HWPMC_XSCALE_H_ */
74