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1.1 root 1: /* $Id: openprom.h,v 1.9 2001/03/16 10:22:02 davem Exp $ */
2: #ifndef __SPARC64_OPENPROM_H
3: #define __SPARC64_OPENPROM_H
4:
5: /* openprom.h: Prom structures and defines for access to the OPENBOOT
6: * prom routines and data areas.
7: *
8: * Copyright (C) 1996 David S. Miller ([email protected])
9: */
10:
11: #ifndef __ASSEMBLY__
12: /* V0 prom device operations. */
13: struct linux_dev_v0_funcs {
14: int (*v0_devopen)(char *device_str);
15: int (*v0_devclose)(int dev_desc);
16: int (*v0_rdblkdev)(int dev_desc, int num_blks, int blk_st, char *buf);
17: int (*v0_wrblkdev)(int dev_desc, int num_blks, int blk_st, char *buf);
18: int (*v0_wrnetdev)(int dev_desc, int num_bytes, char *buf);
19: int (*v0_rdnetdev)(int dev_desc, int num_bytes, char *buf);
20: int (*v0_rdchardev)(int dev_desc, int num_bytes, int dummy, char *buf);
21: int (*v0_wrchardev)(int dev_desc, int num_bytes, int dummy, char *buf);
22: int (*v0_seekdev)(int dev_desc, long logical_offst, int from);
23: };
24:
25: /* V2 and later prom device operations. */
26: struct linux_dev_v2_funcs {
27: int (*v2_inst2pkg)(int d); /* Convert ihandle to phandle */
28: char * (*v2_dumb_mem_alloc)(char *va, unsigned sz);
29: void (*v2_dumb_mem_free)(char *va, unsigned sz);
30:
31: /* To map devices into virtual I/O space. */
32: char * (*v2_dumb_mmap)(char *virta, int which_io, unsigned paddr, unsigned sz);
33: void (*v2_dumb_munmap)(char *virta, unsigned size);
34:
35: int (*v2_dev_open)(char *devpath);
36: void (*v2_dev_close)(int d);
37: int (*v2_dev_read)(int d, char *buf, int nbytes);
38: int (*v2_dev_write)(int d, char *buf, int nbytes);
39: int (*v2_dev_seek)(int d, int hi, int lo);
40:
41: /* Never issued (multistage load support) */
42: void (*v2_wheee2)(void);
43: void (*v2_wheee3)(void);
44: };
45:
46: struct linux_mlist_v0 {
47: struct linux_mlist_v0 *theres_more;
48: unsigned start_adr;
49: unsigned num_bytes;
50: };
51:
52: struct linux_mem_v0 {
53: struct linux_mlist_v0 **v0_totphys;
54: struct linux_mlist_v0 **v0_prommap;
55: struct linux_mlist_v0 **v0_available; /* What we can use */
56: };
57:
58: /* Arguments sent to the kernel from the boot prompt. */
59: struct linux_arguments_v0 {
60: char *argv[8];
61: char args[100];
62: char boot_dev[2];
63: int boot_dev_ctrl;
64: int boot_dev_unit;
65: int dev_partition;
66: char *kernel_file_name;
67: void *aieee1; /* XXX */
68: };
69:
70: /* V2 and up boot things. */
71: struct linux_bootargs_v2 {
72: char **bootpath;
73: char **bootargs;
74: int *fd_stdin;
75: int *fd_stdout;
76: };
77:
78: /* The top level PROM vector. */
79: struct linux_romvec {
80: /* Version numbers. */
81: unsigned int pv_magic_cookie;
82: unsigned int pv_romvers;
83: unsigned int pv_plugin_revision;
84: unsigned int pv_printrev;
85:
86: /* Version 0 memory descriptors. */
87: struct linux_mem_v0 pv_v0mem;
88:
89: /* Node operations. */
90: struct linux_nodeops *pv_nodeops;
91:
92: char **pv_bootstr;
93: struct linux_dev_v0_funcs pv_v0devops;
94:
95: char *pv_stdin;
96: char *pv_stdout;
97: #define PROMDEV_KBD 0 /* input from keyboard */
98: #define PROMDEV_SCREEN 0 /* output to screen */
99: #define PROMDEV_TTYA 1 /* in/out to ttya */
100: #define PROMDEV_TTYB 2 /* in/out to ttyb */
101:
102: /* Blocking getchar/putchar. NOT REENTRANT! (grr) */
103: int (*pv_getchar)(void);
104: void (*pv_putchar)(int ch);
105:
106: /* Non-blocking variants. */
107: int (*pv_nbgetchar)(void);
108: int (*pv_nbputchar)(int ch);
109:
110: void (*pv_putstr)(char *str, int len);
111:
112: /* Miscellany. */
113: void (*pv_reboot)(char *bootstr);
114: void (*pv_printf)(__const__ char *fmt, ...);
115: void (*pv_abort)(void);
116: __volatile__ int *pv_ticks;
117: void (*pv_halt)(void);
118: void (**pv_synchook)(void);
119:
120: /* Evaluate a forth string, not different proto for V0 and V2->up. */
121: union {
122: void (*v0_eval)(int len, char *str);
123: void (*v2_eval)(char *str);
124: } pv_fortheval;
125:
126: struct linux_arguments_v0 **pv_v0bootargs;
127:
128: /* Get ether address. */
129: unsigned int (*pv_enaddr)(int d, char *enaddr);
130:
131: struct linux_bootargs_v2 pv_v2bootargs;
132: struct linux_dev_v2_funcs pv_v2devops;
133:
134: int filler[15];
135:
136: /* This one is sun4c/sun4 only. */
137: void (*pv_setctxt)(int ctxt, char *va, int pmeg);
138:
139: /* Prom version 3 Multiprocessor routines. This stuff is crazy.
140: * No joke. Calling these when there is only one cpu probably
141: * crashes the machine, have to test this. :-)
142: */
143:
144: /* v3_cpustart() will start the cpu 'whichcpu' in mmu-context
145: * 'thiscontext' executing at address 'prog_counter'
146: */
147: int (*v3_cpustart)(unsigned int whichcpu, int ctxtbl_ptr,
148: int thiscontext, char *prog_counter);
149:
150: /* v3_cpustop() will cause cpu 'whichcpu' to stop executing
151: * until a resume cpu call is made.
152: */
153: int (*v3_cpustop)(unsigned int whichcpu);
154:
155: /* v3_cpuidle() will idle cpu 'whichcpu' until a stop or
156: * resume cpu call is made.
157: */
158: int (*v3_cpuidle)(unsigned int whichcpu);
159:
160: /* v3_cpuresume() will resume processor 'whichcpu' executing
161: * starting with whatever 'pc' and 'npc' were left at the
162: * last 'idle' or 'stop' call.
163: */
164: int (*v3_cpuresume)(unsigned int whichcpu);
165: };
166:
167: /* Routines for traversing the prom device tree. */
168: struct linux_nodeops {
169: int (*no_nextnode)(int node);
170: int (*no_child)(int node);
171: int (*no_proplen)(int node, char *name);
172: int (*no_getprop)(int node, char *name, char *val);
173: int (*no_setprop)(int node, char *name, char *val, int len);
174: char * (*no_nextprop)(int node, char *name);
175: };
176:
177: /* More fun PROM structures for device probing. */
178: #define PROMREG_MAX 16
179: #define PROMVADDR_MAX 16
180: #define PROMINTR_MAX 15
181:
182: struct linux_prom_registers {
183: unsigned which_io; /* hi part of physical address */
184: unsigned phys_addr; /* The physical address of this register */
185: int reg_size; /* How many bytes does this register take up? */
186: };
187:
188: struct linux_prom64_registers {
189: long phys_addr;
190: long reg_size;
191: };
192:
193: struct linux_prom_irqs {
194: int pri; /* IRQ priority */
195: int vector; /* This is foobar, what does it do? */
196: };
197:
198: /* Element of the "ranges" vector */
199: struct linux_prom_ranges {
200: unsigned int ot_child_space;
201: unsigned int ot_child_base; /* Bus feels this */
202: unsigned int ot_parent_space;
203: unsigned int ot_parent_base; /* CPU looks from here */
204: unsigned int or_size;
205: };
206:
207: struct linux_prom64_ranges {
208: unsigned long ot_child_base; /* Bus feels this */
209: unsigned long ot_parent_base; /* CPU looks from here */
210: unsigned long or_size;
211: };
212:
213: /* Ranges and reg properties are a bit different for PCI. */
214: struct linux_prom_pci_registers {
215: unsigned int phys_hi;
216: unsigned int phys_mid;
217: unsigned int phys_lo;
218:
219: unsigned int size_hi;
220: unsigned int size_lo;
221: };
222:
223: struct linux_prom_pci_ranges {
224: unsigned int child_phys_hi; /* Only certain bits are encoded here. */
225: unsigned int child_phys_mid;
226: unsigned int child_phys_lo;
227:
228: unsigned int parent_phys_hi;
229: unsigned int parent_phys_lo;
230:
231: unsigned int size_hi;
232: unsigned int size_lo;
233: };
234:
235: struct linux_prom_pci_intmap {
236: unsigned int phys_hi;
237: unsigned int phys_mid;
238: unsigned int phys_lo;
239:
240: unsigned int interrupt;
241:
242: int cnode;
243: unsigned int cinterrupt;
244: };
245:
246: struct linux_prom_pci_intmask {
247: unsigned int phys_hi;
248: unsigned int phys_mid;
249: unsigned int phys_lo;
250: unsigned int interrupt;
251: };
252:
253: struct linux_prom_ebus_ranges {
254: unsigned int child_phys_hi;
255: unsigned int child_phys_lo;
256:
257: unsigned int parent_phys_hi;
258: unsigned int parent_phys_mid;
259: unsigned int parent_phys_lo;
260:
261: unsigned int size;
262: };
263:
264: struct linux_prom_ebus_intmap {
265: unsigned int phys_hi;
266: unsigned int phys_lo;
267:
268: unsigned int interrupt;
269:
270: int cnode;
271: unsigned int cinterrupt;
272: };
273:
274: struct linux_prom_ebus_intmask {
275: unsigned int phys_hi;
276: unsigned int phys_lo;
277: unsigned int interrupt;
278: };
279: #endif /* !(__ASSEMBLY__) */
280:
281: #endif /* !(__SPARC64_OPENPROM_H) */
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