arch/sparc/include/asm/openprom_64.h

   1 #ifndef __SPARC64_OPENPROM_H
   2 #define __SPARC64_OPENPROM_H
   3
   4 /* openprom.h:  Prom structures and defines for access to the OPENBOOT
   5  *              prom routines and data areas.
   6  *
   7  * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
   8  */
   9
  10 #ifndef __ASSEMBLY__
  11 /* V0 prom device operations. */
  12 struct linux_dev_v0_funcs {
  13         int (*v0_devopen)(char *device_str);
  14         int (*v0_devclose)(int dev_desc);
  15         int (*v0_rdblkdev)(int dev_desc, int num_blks, int blk_st, char *buf);
  16         int (*v0_wrblkdev)(int dev_desc, int num_blks, int blk_st, char *buf);
  17         int (*v0_wrnetdev)(int dev_desc, int num_bytes, char *buf);
  18         int (*v0_rdnetdev)(int dev_desc, int num_bytes, char *buf);
  19         int (*v0_rdchardev)(int dev_desc, int num_bytes, int dummy, char *buf);
  20         int (*v0_wrchardev)(int dev_desc, int num_bytes, int dummy, char *buf);
  21         int (*v0_seekdev)(int dev_desc, long logical_offst, int from);
  22 };
  23
  24 /* V2 and later prom device operations. */
  25 struct linux_dev_v2_funcs {
  26         int (*v2_inst2pkg)(int d);      /* Convert ihandle to phandle */
  27         char * (*v2_dumb_mem_alloc)(char *va, unsigned sz);
  28         void (*v2_dumb_mem_free)(char *va, unsigned sz);
  29
  30         /* To map devices into virtual I/O space. */
  31         char * (*v2_dumb_mmap)(char *virta, int which_io, unsigned paddr, unsigned sz);
  32         void (*v2_dumb_munmap)(char *virta, unsigned size);
  33
  34         int (*v2_dev_open)(char *devpath);
  35         void (*v2_dev_close)(int d);
  36         int (*v2_dev_read)(int d, char *buf, int nbytes);
  37         int (*v2_dev_write)(int d, char *buf, int nbytes);
  38         int (*v2_dev_seek)(int d, int hi, int lo);
  39
  40         /* Never issued (multistage load support) */
  41         void (*v2_wheee2)(void);
  42         void (*v2_wheee3)(void);
  43 };
  44
  45 struct linux_mlist_v0 {
  46         struct linux_mlist_v0 *theres_more;
  47         unsigned start_adr;
  48         unsigned num_bytes;
  49 };
  50
  51 struct linux_mem_v0 {
  52         struct linux_mlist_v0 **v0_totphys;
  53         struct linux_mlist_v0 **v0_prommap;
  54         struct linux_mlist_v0 **v0_available; /* What we can use */
  55 };
  56
  57 /* Arguments sent to the kernel from the boot prompt. */
  58 struct linux_arguments_v0 {
  59         char *argv[8];
  60         char args[100];
  61         char boot_dev[2];
  62         int boot_dev_ctrl;
  63         int boot_dev_unit;
  64         int dev_partition;
  65         char *kernel_file_name;
  66         void *aieee1;           /* XXX */
  67 };
  68
  69 /* V2 and up boot things. */
  70 struct linux_bootargs_v2 {
  71         char **bootpath;
  72         char **bootargs;
  73         int *fd_stdin;
  74         int *fd_stdout;
  75 };
  76
  77 /* The top level PROM vector. */
  78 struct linux_romvec {
  79         /* Version numbers. */
  80         unsigned int pv_magic_cookie;
  81         unsigned int pv_romvers;
  82         unsigned int pv_plugin_revision;
  83         unsigned int pv_printrev;
  84
  85         /* Version 0 memory descriptors. */
  86         struct linux_mem_v0 pv_v0mem;
  87
  88         /* Node operations. */
  89         struct linux_nodeops *pv_nodeops;
  90
  91         char **pv_bootstr;
  92         struct linux_dev_v0_funcs pv_v0devops;
  93
  94         char *pv_stdin;
  95         char *pv_stdout;
  96 #define PROMDEV_KBD     0               /* input from keyboard */
  97 #define PROMDEV_SCREEN  0               /* output to screen */
  98 #define PROMDEV_TTYA    1               /* in/out to ttya */
  99 #define PROMDEV_TTYB    2               /* in/out to ttyb */
 100
 101         /* Blocking getchar/putchar.  NOT REENTRANT! (grr) */
 102         int (*pv_getchar)(void);
 103         void (*pv_putchar)(int ch);
 104
 105         /* Non-blocking variants. */
 106         int (*pv_nbgetchar)(void);
 107         int (*pv_nbputchar)(int ch);
 108
 109         void (*pv_putstr)(char *str, int len);
 110
 111         /* Miscellany. */
 112         void (*pv_reboot)(char *bootstr);
 113         void (*pv_printf)(__const__ char *fmt, ...);
 114         void (*pv_abort)(void);
 115         __volatile__ int *pv_ticks;
 116         void (*pv_halt)(void);
 117         void (**pv_synchook)(void);
 118
 119         /* Evaluate a forth string, not different proto for V0 and V2->up. */
 120         union {
 121                 void (*v0_eval)(int len, char *str);
 122                 void (*v2_eval)(char *str);
 123         } pv_fortheval;
 124
 125         struct linux_arguments_v0 **pv_v0bootargs;
 126
 127         /* Get ether address. */
 128         unsigned int (*pv_enaddr)(int d, char *enaddr);
 129
 130         struct linux_bootargs_v2 pv_v2bootargs;
 131         struct linux_dev_v2_funcs pv_v2devops;
 132
 133         int filler[15];
 134
 135         /* This one is sun4c/sun4 only. */
 136         void (*pv_setctxt)(int ctxt, char *va, int pmeg);
 137
 138         /* Prom version 3 Multiprocessor routines. This stuff is crazy.
 139          * No joke. Calling these when there is only one cpu probably
 140          * crashes the machine, have to test this. :-)
 141          */
 142
 143         /* v3_cpustart() will start the cpu 'whichcpu' in mmu-context
 144          * 'thiscontext' executing at address 'prog_counter'
 145          */
 146         int (*v3_cpustart)(unsigned int whichcpu, int ctxtbl_ptr,
 147                            int thiscontext, char *prog_counter);
 148
 149         /* v3_cpustop() will cause cpu 'whichcpu' to stop executing
 150          * until a resume cpu call is made.
 151          */
 152         int (*v3_cpustop)(unsigned int whichcpu);
 153
 154         /* v3_cpuidle() will idle cpu 'whichcpu' until a stop or
 155          * resume cpu call is made.
 156          */
 157         int (*v3_cpuidle)(unsigned int whichcpu);
 158
 159         /* v3_cpuresume() will resume processor 'whichcpu' executing
 160          * starting with whatever 'pc' and 'npc' were left at the
 161          * last 'idle' or 'stop' call.
 162          */
 163         int (*v3_cpuresume)(unsigned int whichcpu);
 164 };
 165
 166 /* Routines for traversing the prom device tree. */
 167 struct linux_nodeops {
 168         int (*no_nextnode)(int node);
 169         int (*no_child)(int node);
 170         int (*no_proplen)(int node, char *name);
 171         int (*no_getprop)(int node, char *name, char *val);
 172         int (*no_setprop)(int node, char *name, char *val, int len);
 173         char * (*no_nextprop)(int node, char *name);
 174 };
 175
 176 /* More fun PROM structures for device probing. */
 177 #define PROMREG_MAX     24
 178 #define PROMVADDR_MAX   16
 179 #define PROMINTR_MAX    32
 180
 181 struct linux_prom_registers {
 182         unsigned which_io;      /* hi part of physical address                  */
 183         unsigned phys_addr;     /* The physical address of this register        */
 184         int reg_size;           /* How many bytes does this register take up?   */
 185 };
 186
 187 struct linux_prom64_registers {
 188         unsigned long phys_addr;
 189         unsigned long reg_size;
 190 };
 191
 192 struct linux_prom_irqs {
 193         int pri;    /* IRQ priority */
 194         int vector; /* This is foobar, what does it do? */
 195 };
 196
 197 /* Element of the "ranges" vector */
 198 struct linux_prom_ranges {
 199         unsigned int ot_child_space;
 200         unsigned int ot_child_base;             /* Bus feels this */
 201         unsigned int ot_parent_space;
 202         unsigned int ot_parent_base;            /* CPU looks from here */
 203         unsigned int or_size;
 204 };
 205
 206 struct linux_prom64_ranges {
 207         unsigned long ot_child_base;            /* Bus feels this */
 208         unsigned long ot_parent_base;           /* CPU looks from here */
 209         unsigned long or_size;
 210 };
 211
 212 /* Ranges and reg properties are a bit different for PCI. */
 213 struct linux_prom_pci_registers {
 214         unsigned int phys_hi;
 215         unsigned int phys_mid;
 216         unsigned int phys_lo;
 217
 218         unsigned int size_hi;
 219         unsigned int size_lo;
 220 };
 221
 222 struct linux_prom_pci_ranges {
 223         unsigned int child_phys_hi;     /* Only certain bits are encoded here. */
 224         unsigned int child_phys_mid;
 225         unsigned int child_phys_lo;
 226
 227         unsigned int parent_phys_hi;
 228         unsigned int parent_phys_lo;
 229
 230         unsigned int size_hi;
 231         unsigned int size_lo;
 232 };
 233
 234 struct linux_prom_pci_intmap {
 235         unsigned int phys_hi;
 236         unsigned int phys_mid;
 237         unsigned int phys_lo;
 238
 239         unsigned int interrupt;
 240
 241         int          cnode;
 242         unsigned int cinterrupt;
 243 };
 244
 245 struct linux_prom_pci_intmask {
 246         unsigned int phys_hi;
 247         unsigned int phys_mid;
 248         unsigned int phys_lo;
 249         unsigned int interrupt;
 250 };
 251
 252 struct linux_prom_ebus_ranges {
 253         unsigned int child_phys_hi;
 254         unsigned int child_phys_lo;
 255
 256         unsigned int parent_phys_hi;
 257         unsigned int parent_phys_mid;
 258         unsigned int parent_phys_lo;
 259
 260         unsigned int size;
 261 };
 262
 263 struct linux_prom_ebus_intmap {
 264         unsigned int phys_hi;
 265         unsigned int phys_lo;
 266
 267         unsigned int interrupt;
 268
 269         int          cnode;
 270         unsigned int cinterrupt;
 271 };
 272
 273 struct linux_prom_ebus_intmask {
 274         unsigned int phys_hi;
 275         unsigned int phys_lo;
 276         unsigned int interrupt;
 277 };
 278 #endif /* !(__ASSEMBLY__) */
 279
 280 #endif /* !(__SPARC64_OPENPROM_H) */