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      1 /*	$NetBSD: kcore.h,v 1.7 2023/01/29 09:24:33 mlelstv Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1996, 1997 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Gordon W. Ross, Jason R. Thorpe, and Leo Weppelman.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef _M68K_KCORE_H_
     33 #define	_M68K_KCORE_H_
     34 
     35 /*
     36  * Unified m68k kcore header descriptions.
     37  *
     38  * NOTE: We must have all possible m68k kcore types defined in this
     39  * file.  Otherwise, we require kernel sources for all m68k platforms
     40  * to build userland.
     41  *
     42  * We must provide STE/PTE bits in the kcore header for a couple
     43  * of reasons:
     44  *
     45  *	- different platforms may have the MMUs configured for different
     46  *	  page sizes
     47  *	- we may not have a specific platform's pte.h available to us
     48  *
     49  * These are on-disk structures; use fixed-sized types!
     50  *
     51  * The total size of the cpu_kcore_hdr should be <= DEV_BSIZE!
     52  */
     53 
     54 /*
     55  * kcore information for Utah-derived pmaps
     56  */
     57 #define	M68K_NPHYS_RAM_SEGS	8	/* XXX */
     58 struct m68k_kcore_hdr {
     59 	int32_t		mmutype;	/* MMU type */
     60 	uint32_t	sg_v;		/* STE bits */
     61 	uint32_t	sg_frame;
     62 	uint32_t	sg_ishift;
     63 	uint32_t	sg_pmask;
     64 	uint32_t	sg40_shift1;
     65 	uint32_t	sg40_mask2;
     66 	uint32_t	sg40_shift2;
     67 	uint32_t	sg40_mask3;
     68 	uint32_t	sg40_shift3;
     69 	uint32_t	sg40_addr1;
     70 	uint32_t	sg40_addr2;
     71 	uint32_t	pg_v;		/* PTE bits */
     72 	uint32_t	pg_frame;
     73 	uint32_t	sysseg_pa;	/* PA of Sysseg[] */
     74 	uint32_t	reloc;		/* value added to relocate a symbol
     75 					   before address translation is
     76 					   enabled */
     77 	uint32_t	relocend;	/* if kernbase < va < relocend, we
     78 					   can do simple relocation to get
     79 					   the physical address */
     80 	phys_ram_seg_t	ram_segs[M68K_NPHYS_RAM_SEGS];
     81 };
     82 
     83 /*
     84  * kcore information for the sun2
     85  */
     86 struct sun2_kcore_hdr {
     87 	uint32_t	segshift;
     88 	uint32_t	pg_frame;	/* PTE bits */
     89 	uint32_t	pg_valid;
     90 	uint8_t		ksegmap[512];	/* kernel segment map */
     91 };
     92 
     93 /*
     94  * kcore information for the sun3
     95  */
     96 struct sun3_kcore_hdr {
     97 	uint32_t	segshift;
     98 	uint32_t	pg_frame;	/* PTE bits */
     99 	uint32_t	pg_valid;
    100 	uint8_t		ksegmap[256];	/* kernel segment map */
    101 };
    102 
    103 /*
    104  * kcore information for the sun3x; Motorola MMU, but a very
    105  * different pmap.
    106  */
    107 #define	SUN3X_NPHYS_RAM_SEGS	4
    108 struct sun3x_kcore_hdr {
    109 	uint32_t	pg_frame;	/* PTE bits */
    110 	uint32_t	pg_valid;
    111 	uint32_t	contig_end;
    112 	uint32_t	kernCbase;	/* VA of kernel level C page table */
    113 	phys_ram_seg_t	ram_segs[SUN3X_NPHYS_RAM_SEGS];
    114 };
    115 
    116 /*
    117  * Catch-all header.  "un" is interpreted based on the contents of "name".
    118  */
    119 struct cpu_kcore_hdr {
    120 	char		name[16];	/* machine name */
    121 	uint32_t	page_size;	/* hardware page size */
    122 	uint32_t	kernbase;	/* start of KVA space */
    123 	union {
    124 		struct m68k_kcore_hdr _m68k;
    125 		struct sun2_kcore_hdr _sun2;
    126 		struct sun3_kcore_hdr _sun3;
    127 		struct sun3x_kcore_hdr _sun3x;
    128 	} un;
    129 };
    130 
    131 typedef struct cpu_kcore_hdr cpu_kcore_hdr_t;
    132 
    133 #endif /* _M68K_KCORE_H_ */
    134