1*27620987Smatt /* $NetBSD: cpu_counter.h,v 1.1 2014/09/03 19:34:26 matt Exp $ */
2*27620987Smatt
3*27620987Smatt /*-
4*27620987Smatt * Copyright (c) 2014 The NetBSD Foundation, Inc.
5*27620987Smatt * All rights reserved.
6*27620987Smatt *
7*27620987Smatt * This code is derived from software contributed to The NetBSD Foundation
8*27620987Smatt * by Matt Thomas of 3am Software Foundry.
9*27620987Smatt *
10*27620987Smatt * Redistribution and use in source and binary forms, with or without
11*27620987Smatt * modification, are permitted provided that the following conditions
12*27620987Smatt * are met:
13*27620987Smatt * 1. Redistributions of source code must retain the above copyright
14*27620987Smatt * notice, this list of conditions and the following disclaimer.
15*27620987Smatt * 2. Redistributions in binary form must reproduce the above copyright
16*27620987Smatt * notice, this list of conditions and the following disclaimer in the
17*27620987Smatt * documentation and/or other materials provided with the distribution.
18*27620987Smatt *
19*27620987Smatt * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20*27620987Smatt * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21*27620987Smatt * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22*27620987Smatt * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23*27620987Smatt * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24*27620987Smatt * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25*27620987Smatt * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26*27620987Smatt * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27*27620987Smatt * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28*27620987Smatt * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29*27620987Smatt * POSSIBILITY OF SUCH DAMAGE.
30*27620987Smatt */
31*27620987Smatt
32*27620987Smatt #ifndef _OR1K_CPU_COUNTER_H_
33*27620987Smatt #define _OR1K_CPU_COUNTER_H_
34*27620987Smatt
35*27620987Smatt /*
36*27620987Smatt * OR1K specific support for CPU counter.
37*27620987Smatt */
38*27620987Smatt
39*27620987Smatt #ifdef _KERNEL
40*27620987Smatt
41*27620987Smatt #include <sys/cpu.h>
42*27620987Smatt #include <or1k/armreg.h>
43*27620987Smatt
44*27620987Smatt #define cpu_hascounter() (curcpu()->ci_data.cpu_cc_freq != 0)
45*27620987Smatt #define cpu_counter() cpu_counter32()
46*27620987Smatt
47*27620987Smatt static __inline uint32_t
cpu_counter32(void)48*27620987Smatt cpu_counter32(void)
49*27620987Smatt {
50*27620987Smatt return 0; /* XXX */
51*27620987Smatt }
52*27620987Smatt
53*27620987Smatt static __inline uint64_t
cpu_frequency(struct cpu_info * ci)54*27620987Smatt cpu_frequency(struct cpu_info *ci)
55*27620987Smatt {
56*27620987Smatt return ci->ci_data.cpu_cc_freq;
57*27620987Smatt }
58*27620987Smatt
59*27620987Smatt #endif /* _KERNEL */
60*27620987Smatt
61*27620987Smatt #endif /* _OR1K_CPU_COUNTER_H_ */
62