1/* $NetBSD: cpu.h,v 1.27 2021/11/02 11:21:24 ryo Exp $ */
2
3/*
4 * Copyright 2002 Wasabi Systems, Inc.
5 * All rights reserved.
6 *
7 * Written by Eduardo Horvath for Wasabi Systems, Inc.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed for the NetBSD Project by
20 * Wasabi Systems, Inc.
21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse
22 * or promote products derived from this software without specific prior
23 * written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGE.
36 */
37
38#ifndef _IBM4XX_CPU_H_
39#define _IBM4XX_CPU_H_
40
41#ifdef _KERNEL_OPT
42#include "opt_param.h"
43#endif
44
45#include <powerpc/psl.h>
46#include <powerpc/spr.h>
47#include <powerpc/ibm4xx/spr.h>
48#include <powerpc/ibm4xx/dcr4xx.h>
49
50#if defined(_KERNEL)
51struct exc_info {
52 vaddr_t exc_vector;
53 const uint32_t *exc_addr;
54 uintptr_t exc_size;
55};
56
57#include <sys/param.h>
58#include <sys/device.h>
59#include <prop/proplib.h>
60
61/* export from ibm4xx/autoconf.c */
62extern void (*md_device_register)(device_t dev, void *aux);
63
64/* export from ibm4xx/machdep.c */
65extern void (*md_consinit)(void);
66extern void (*md_cpu_startup)(void);
67
68/* export from ibm4xx/ibm40x_machdep.c */
69extern void ibm40x_memsize_init(u_int, u_int);
70
71/* export from ibm4xx/ibm4xx_machdep.c */
72extern void ibm4xx_init(vaddr_t, vaddr_t, void (*)(void));
73extern void ibm4xx_cpu_startup(const char *);
74extern void ibm4xx_dumpsys(void);
75extern void ibm4xx_install_extint(void (*)(void));
76
77/* export from ibm4xx/ibm4xx_autoconf.c */
78extern void ibm4xx_device_register(device_t, void *, int);
79
80/* export from ibm4xx/clock.c */
81extern void calc_delayconst(void);
82
83/* export from ibm4xx/4xx_locore.S */
84extern void ppc4xx_reset(void) __dead;
85
86extern void intr_init(void);
87
88/*
89 * DCR (Device Control Register) access. These have to be
90 * macros because register address is encoded as immediate
91 * operand.
92 */
93static __inline __always_inline void
94mtdcr(const int reg, uint32_t val)
95{
96 __asm volatile("mtdcr %0,%1" : : "K"(reg), "r"(val));
97}
98
99static __inline __always_inline uint32_t
100mfdcr(const int reg)
101{
102 uint32_t val;
103
104 __asm volatile("mfdcr %0,%1" : "=r"(val) : "K"(reg));
105 return val;
106}
107
108static __inline void
109mtcpr(int reg, uint32_t val)
110{
111 mtdcr(DCR_CPR0_CFGADDR, reg);
112 mtdcr(DCR_CPR0_CFGDATA, val);
113}
114
115static __inline uint32_t
116mfcpr(int reg)
117{
118 mtdcr(DCR_CPR0_CFGADDR, reg);
119 return mfdcr(DCR_CPR0_CFGDATA);
120}
121
122static void inline
123mtsdr(int reg, uint32_t val)
124{
125 mtdcr(DCR_SDR0_CFGADDR, reg);
126 mtdcr(DCR_SDR0_CFGDATA, val);
127}
128
129static __inline uint32_t
130mfsdr(int reg)
131{
132 mtdcr(DCR_SDR0_CFGADDR, reg);
133 return mfdcr(DCR_SDR0_CFGDATA);
134}
135
136#include <powerpc/pic/picvar.h>
137
138extern struct pic_ops pic_uic403;
139extern struct pic_ops pic_uic0;
140extern struct pic_ops pic_uic1;
141extern struct pic_ops pic_uic2;
142
143extern paddr_t msgbuf_paddr;
144extern vaddr_t msgbuf_vaddr;
145extern char msgbuf[MSGBUFSIZE];
146#endif /* _KERNEL */
147
148/* Board info dictionary */
149extern prop_dictionary_t board_properties;
150extern void board_info_init(void);
151
152#endif /* _IBM4XX_CPU_H_ */