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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 | /* SPDX-License-Identifier: GPL-2.0-or-later */ /* * include/asm-mips/dec/prom.h * * DECstation PROM interface. * * Copyright (C) 2002 Maciej W. Rozycki * * Based on arch/mips/dec/prom/prom.h by the Anonymous. */ #ifndef _ASM_DEC_PROM_H #define _ASM_DEC_PROM_H #include <linux/types.h> #include <asm/addrspace.h> /* * PMAX/3MAX PROM entry points for DS2100/3100's and DS5000/2xx's. * Many of these will work for MIPSen as well! */ #define VEC_RESET (u64 *)CKSEG1ADDR(0x1fc00000) /* Prom base address */ #define PMAX_PROM_ENTRY(x) (VEC_RESET + (x)) /* Prom jump table */ #define PMAX_PROM_HALT PMAX_PROM_ENTRY(2) /* valid on MIPSen */ #define PMAX_PROM_AUTOBOOT PMAX_PROM_ENTRY(5) /* valid on MIPSen */ #define PMAX_PROM_OPEN PMAX_PROM_ENTRY(6) #define PMAX_PROM_READ PMAX_PROM_ENTRY(7) #define PMAX_PROM_CLOSE PMAX_PROM_ENTRY(10) #define PMAX_PROM_LSEEK PMAX_PROM_ENTRY(11) #define PMAX_PROM_GETCHAR PMAX_PROM_ENTRY(12) #define PMAX_PROM_PUTCHAR PMAX_PROM_ENTRY(13) /* 12 on MIPSen */ #define PMAX_PROM_GETS PMAX_PROM_ENTRY(15) #define PMAX_PROM_PRINTF PMAX_PROM_ENTRY(17) #define PMAX_PROM_GETENV PMAX_PROM_ENTRY(33) /* valid on MIPSen */ /* * Magic number indicating REX PROM available on DECstation. Found in * register a2 on transfer of control to program from PROM. */ #define REX_PROM_MAGIC 0x30464354 /* KN04 and KN05 are REX PROMs, so only do the check for R3k systems. */ static inline bool prom_is_rex(u32 magic) { return !IS_ENABLED(CONFIG_CPU_R3000) || magic == REX_PROM_MAGIC; } /* * 3MIN/MAXINE PROM entry points for DS5000/1xx's, DS5000/xx's and * DS5000/2x0. */ #define REX_PROM_GETBITMAP 0x84/4 /* get mem bitmap */ #define REX_PROM_GETCHAR 0x24/4 /* getch() */ #define REX_PROM_GETENV 0x64/4 /* get env. variable */ #define REX_PROM_GETSYSID 0x80/4 /* get system id */ #define REX_PROM_GETTCINFO 0xa4/4 #define REX_PROM_PRINTF 0x30/4 /* printf() */ #define REX_PROM_SLOTADDR 0x6c/4 /* slotaddr */ #define REX_PROM_BOOTINIT 0x54/4 /* open() */ #define REX_PROM_BOOTREAD 0x58/4 /* read() */ #define REX_PROM_CLEARCACHE 0x7c/4 /* * Used by rex_getbitmap(). */ typedef struct { int pagesize; unsigned char bitmap[]; } memmap; /* * Function pointers as read from a PROM's callback vector. */ extern int (*__rex_bootinit)(void); extern int (*__rex_bootread)(void); extern int (*__rex_getbitmap)(memmap *); extern unsigned long *(*__rex_slot_address)(int); extern void *(*__rex_gettcinfo)(void); extern int (*__rex_getsysid)(void); extern void (*__rex_clear_cache)(void); extern int (*__prom_getchar)(void); extern char *(*__prom_getenv)(char *); extern int (*__prom_printf)(char *, ...); extern int (*__pmax_open)(char*, int); extern int (*__pmax_lseek)(int, long, int); extern int (*__pmax_read)(int, void *, int); extern int (*__pmax_close)(int); #ifdef CONFIG_64BIT /* * On MIPS64 we have to call PROM functions via a helper * dispatcher to accommodate ABI incompatibilities. */ #define __DEC_PROM_O32(fun, arg) fun arg __asm__(#fun); \ __asm__(#fun " = call_o32") int __DEC_PROM_O32(_rex_bootinit, (int (*)(void), void *)); int __DEC_PROM_O32(_rex_bootread, (int (*)(void), void *)); int __DEC_PROM_O32(_rex_getbitmap, (int (*)(memmap *), void *, memmap *)); unsigned long *__DEC_PROM_O32(_rex_slot_address, (unsigned long *(*)(int), void *, int)); void *__DEC_PROM_O32(_rex_gettcinfo, (void *(*)(void), void *)); int __DEC_PROM_O32(_rex_getsysid, (int (*)(void), void *)); void __DEC_PROM_O32(_rex_clear_cache, (void (*)(void), void *)); int __DEC_PROM_O32(_prom_getchar, (int (*)(void), void *)); char *__DEC_PROM_O32(_prom_getenv, (char *(*)(char *), void *, char *)); int __DEC_PROM_O32(_prom_printf, (int (*)(char *, ...), void *, char *, ...)); #define rex_bootinit() _rex_bootinit(__rex_bootinit, NULL) #define rex_bootread() _rex_bootread(__rex_bootread, NULL) #define rex_getbitmap(x) _rex_getbitmap(__rex_getbitmap, NULL, x) #define rex_slot_address(x) _rex_slot_address(__rex_slot_address, NULL, x) #define rex_gettcinfo() _rex_gettcinfo(__rex_gettcinfo, NULL) #define rex_getsysid() _rex_getsysid(__rex_getsysid, NULL) #define rex_clear_cache() _rex_clear_cache(__rex_clear_cache, NULL) #define prom_getchar() _prom_getchar(__prom_getchar, NULL) #define prom_getenv(x) _prom_getenv(__prom_getenv, NULL, x) #define prom_printf(x...) _prom_printf(__prom_printf, NULL, x) #else /* !CONFIG_64BIT */ /* * On plain MIPS we just call PROM functions directly. */ #define rex_bootinit __rex_bootinit #define rex_bootread __rex_bootread #define rex_getbitmap __rex_getbitmap #define rex_slot_address __rex_slot_address #define rex_gettcinfo __rex_gettcinfo #define rex_getsysid __rex_getsysid #define rex_clear_cache __rex_clear_cache #define prom_getchar __prom_getchar #define prom_getenv __prom_getenv #define prom_printf __prom_printf #define pmax_open __pmax_open #define pmax_lseek __pmax_lseek #define pmax_read __pmax_read #define pmax_close __pmax_close #endif /* !CONFIG_64BIT */ extern void prom_meminit(u32); extern void prom_identify_arch(u32); extern void prom_init_cmdline(s32, s32 *, u32); extern void register_prom_console(void); extern void unregister_prom_console(void); #endif /* _ASM_DEC_PROM_H */ |