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cpu.h revision 1.22.16.1 
      1 /*	$NetBSD: cpu.h,v 1.22.16.1 2021/04/03 21:44:47 thorpej 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 #include <powerpc/psl.h>
     42 #include <powerpc/spr.h>
     43 #include <powerpc/ibm4xx/spr.h>
     44 #include <powerpc/ibm4xx/dcr4xx.h>
     45 
     46 #if defined(_KERNEL)
     47 struct exc_info {
     48 	vaddr_t exc_vector;
     49 	const uint32_t *exc_addr;
     50 	uintptr_t exc_size;
     51 };
     52 
     53 #include <sys/param.h>
     54 #include <sys/device.h>
     55 #include <prop/proplib.h>
     56 
     57 /* export from ibm4xx/autoconf.c */
     58 extern void (*md_device_register)(device_t dev, void *aux);
     59 
     60 /* export from ibm4xx/machdep.c */
     61 extern void (*md_consinit)(void);
     62 extern void (*md_cpu_startup)(void);
     63 
     64 /* export from ibm4xx/ibm40x_machdep.c */
     65 extern void ibm40x_memsize_init(u_int, u_int);
     66 
     67 /* export from ibm4xx/ibm4xx_machdep.c */
     68 extern void ibm4xx_init(vaddr_t, vaddr_t, void (*)(void));
     69 extern void ibm4xx_cpu_startup(const char *);
     70 extern void ibm4xx_dumpsys(void);
     71 extern void ibm4xx_install_extint(void (*)(void));
     72 
     73 /* export from ibm4xx/ibm4xx_autoconf.c */
     74 extern void ibm4xx_device_register(device_t, void *, int);
     75 
     76 /* export from ibm4xx/clock.c */
     77 extern void calc_delayconst(void);
     78 
     79 /* export from ibm4xx/4xx_locore.S */
     80 extern void ppc4xx_reset(void) __dead;
     81 
     82 extern void intr_init(void);
     83 
     84 /*
     85  * DCR (Device Control Register) access. These have to be
     86  * macros because register address is encoded as immediate
     87  * operand.
     88  */
     89 static __inline void
     90 mtdcr(int reg, uint32_t val)
     91 {
     92 	__asm volatile("mtdcr %0,%1" : : "K"(reg), "r"(val));
     93 }
     94 
     95 static __inline uint32_t
     96 mfdcr(int reg)
     97 {
     98 	uint32_t val;
     99 
    100 	__asm volatile("mfdcr %0,%1" : "=r"(val) : "K"(reg));
    101 	return val;
    102 }
    103 
    104 static __inline void
    105 mtcpr(int reg, uint32_t val)
    106 {
    107 	mtdcr(DCR_CPR0_CFGADDR, reg);
    108 	mtdcr(DCR_CPR0_CFGDATA, val);
    109 }
    110 
    111 static __inline uint32_t
    112 mfcpr(int reg)
    113 {
    114 	mtdcr(DCR_CPR0_CFGADDR, reg);
    115 	return mfdcr(DCR_CPR0_CFGDATA);
    116 }
    117 
    118 static void inline
    119 mtsdr(int reg, uint32_t val)
    120 {
    121 	mtdcr(DCR_SDR0_CFGADDR, reg);
    122 	mtdcr(DCR_SDR0_CFGDATA, val);
    123 }
    124 
    125 static __inline uint32_t
    126 mfsdr(int reg)
    127 {
    128 	mtdcr(DCR_SDR0_CFGADDR, reg);
    129 	return mfdcr(DCR_SDR0_CFGDATA);
    130 }
    131 
    132 #include <powerpc/pic/picvar.h>
    133 
    134 extern struct pic_ops pic_uic403;
    135 extern struct pic_ops pic_uic0;
    136 extern struct pic_ops pic_uic1;
    137 extern struct pic_ops pic_uic2;
    138 
    139 extern paddr_t msgbuf_paddr;
    140 extern vaddr_t msgbuf_vaddr;
    141 extern char msgbuf[MSGBUFSIZE];
    142 #endif /* _KERNEL */
    143 
    144 /* Board info dictionary */
    145 extern prop_dictionary_t board_properties;
    146 extern void board_info_init(void);
    147 
    148 #endif	/* _IBM4XX_CPU_H_ */
    149