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x86: arch/x86/mm/init_32.c cleanup
[wrt350n-kernel.git] / arch / ppc / platforms / residual.c
blobc9911601cfdf83d0446c1b840b425b5aed3d9ce0
1 /*
2 * Code to deal with the PReP residual data.
3 *
4 * Written by: Cort Dougan (cort@cs.nmt.edu)
5 * Improved _greatly_ and rewritten by Gabriel Paubert (paubert@iram.es)
6 *
7 * This file is based on the following documentation:
8 *
9 * IBM Power Personal Systems Architecture
10 * Residual Data
11 * Document Number: PPS-AR-FW0001
12 *
13 * This file is subject to the terms and conditions of the GNU General Public
14 * License. See the file COPYING in the main directory of this archive
15 * for more details.
16 *
17 */
18
19 #include <linux/string.h>
20 #include <asm/residual.h>
21 #include <asm/pnp.h>
22 #include <asm/byteorder.h>
23
24 #include <linux/errno.h>
25 #include <linux/sched.h>
26 #include <linux/kernel.h>
27 #include <linux/mm.h>
28 #include <linux/stddef.h>
29 #include <linux/unistd.h>
30 #include <linux/ptrace.h>
31 #include <linux/slab.h>
32 #include <linux/user.h>
33 #include <linux/a.out.h>
34 #include <linux/tty.h>
35 #include <linux/major.h>
36 #include <linux/interrupt.h>
37 #include <linux/reboot.h>
38 #include <linux/init.h>
39 #include <linux/ioport.h>
40 #include <linux/pci.h>
41 #include <linux/ide.h>
42
43 #include <asm/sections.h>
44 #include <asm/mmu.h>
45 #include <asm/io.h>
46 #include <asm/pgtable.h>
47 #include <asm/ide.h>
48
49
50 unsigned char __res[sizeof(RESIDUAL)] = {0,};
51 RESIDUAL *res = (RESIDUAL *)&__res;
52
53 char * PnP_BASE_TYPES[] __initdata = {
54 "Reserved",
55 "MassStorageDevice",
56 "NetworkInterfaceController",
57 "DisplayController",
58 "MultimediaController",
59 "MemoryController",
60 "BridgeController",
61 "CommunicationsDevice",
62 "SystemPeripheral",
63 "InputDevice",
64 "ServiceProcessor"
65 };
66
67 /* Device Sub Type Codes */
68
69 unsigned char * PnP_SUB_TYPES[] __initdata = {
70 "\001\000SCSIController",
71 "\001\001IDEController",
72 "\001\002FloppyController",
73 "\001\003IPIController",
74 "\001\200OtherMassStorageController",
75 "\002\000EthernetController",
76 "\002\001TokenRingController",
77 "\002\002FDDIController",
78 "\002\0x80OtherNetworkController",
79 "\003\000VGAController",
80 "\003\001SVGAController",
81 "\003\002XGAController",
82 "\003\200OtherDisplayController",
83 "\004\000VideoController",
84 "\004\001AudioController",
85 "\004\200OtherMultimediaController",
86 "\005\000RAM",
87 "\005\001FLASH",
88 "\005\200OtherMemoryDevice",
89 "\006\000HostProcessorBridge",
90 "\006\001ISABridge",
91 "\006\002EISABridge",
92 "\006\003MicroChannelBridge",
93 "\006\004PCIBridge",
94 "\006\005PCMCIABridge",
95 "\006\006VMEBridge",
96 "\006\200OtherBridgeDevice",
97 "\007\000RS232Device",
98 "\007\001ATCompatibleParallelPort",
99 "\007\200OtherCommunicationsDevice",
100 "\010\000ProgrammableInterruptController",
101 "\010\001DMAController",
102 "\010\002SystemTimer",
103 "\010\003RealTimeClock",
104 "\010\004L2Cache",
105 "\010\005NVRAM",
106 "\010\006PowerManagement",
107 "\010\007CMOS",
108 "\010\010OperatorPanel",
109 "\010\011ServiceProcessorClass1",
110 "\010\012ServiceProcessorClass2",
111 "\010\013ServiceProcessorClass3",
112 "\010\014GraphicAssist",
113 "\010\017SystemPlanar",
114 "\010\200OtherSystemPeripheral",
115 "\011\000KeyboardController",
116 "\011\001Digitizer",
117 "\011\002MouseController",
118 "\011\003TabletController",
119 "\011\0x80OtherInputController",
120 "\012\000GeneralMemoryController",
121 NULL
122 };
123
124 /* Device Interface Type Codes */
125
126 unsigned char * PnP_INTERFACES[] __initdata = {
127 "\000\000\000General",
128 "\001\000\000GeneralSCSI",
129 "\001\001\000GeneralIDE",
130 "\001\001\001ATACompatible",
131
132 "\001\002\000GeneralFloppy",
133 "\001\002\001Compatible765",
134 "\001\002\002NS398_Floppy", /* NS Super I/O wired to use index
135 register at port 398 and data
136 register at port 399 */
137 "\001\002\003NS26E_Floppy", /* Ports 26E and 26F */
138 "\001\002\004NS15C_Floppy", /* Ports 15C and 15D */
139 "\001\002\005NS2E_Floppy", /* Ports 2E and 2F */
140 "\001\002\006CHRP_Floppy", /* CHRP Floppy in PR*P system */
141
142 "\001\003\000GeneralIPI",
143
144 "\002\000\000GeneralEther",
145 "\002\001\000GeneralToken",
146 "\002\002\000GeneralFDDI",
147
148 "\003\000\000GeneralVGA",
149 "\003\001\000GeneralSVGA",
150 "\003\002\000GeneralXGA",
151
152 "\004\000\000GeneralVideo",
153 "\004\001\000GeneralAudio",
154 "\004\001\001CS4232Audio", /* CS 4232 Plug 'n Play Configured */
155
156 "\005\000\000GeneralRAM",
157 /* This one is obviously wrong ! */
158 "\005\000\000PCIMemoryController", /* PCI Config Method */
159 "\005\000\001RS6KMemoryController", /* RS6K Config Method */
160 "\005\001\000GeneralFLASH",
161
162 "\006\000\000GeneralHostBridge",
163 "\006\001\000GeneralISABridge",
164 "\006\002\000GeneralEISABridge",
165 "\006\003\000GeneralMCABridge",
166 /* GeneralPCIBridge = 0, */
167 "\006\004\000PCIBridgeDirect",
168 "\006\004\001PCIBridgeIndirect",
169 "\006\004\002PCIBridgeRS6K",
170 "\006\005\000GeneralPCMCIABridge",
171 "\006\006\000GeneralVMEBridge",
172
173 "\007\000\000GeneralRS232",
174 "\007\000\001COMx",
175 "\007\000\002Compatible16450",
176 "\007\000\003Compatible16550",
177 "\007\000\004NS398SerPort", /* NS Super I/O wired to use index
178 register at port 398 and data
179 register at port 399 */
180 "\007\000\005NS26ESerPort", /* Ports 26E and 26F */
181 "\007\000\006NS15CSerPort", /* Ports 15C and 15D */
182 "\007\000\007NS2ESerPort", /* Ports 2E and 2F */
183
184 "\007\001\000GeneralParPort",
185 "\007\001\001LPTx",
186 "\007\001\002NS398ParPort", /* NS Super I/O wired to use index
187 register at port 398 and data
188 register at port 399 */
189 "\007\001\003NS26EParPort", /* Ports 26E and 26F */
190 "\007\001\004NS15CParPort", /* Ports 15C and 15D */
191 "\007\001\005NS2EParPort", /* Ports 2E and 2F */
192
193 "\010\000\000GeneralPIC",
194 "\010\000\001ISA_PIC",
195 "\010\000\002EISA_PIC",
196 "\010\000\003MPIC",
197 "\010\000\004RS6K_PIC",
198
199 "\010\001\000GeneralDMA",
200 "\010\001\001ISA_DMA",
201 "\010\001\002EISA_DMA",
202
203 "\010\002\000GeneralTimer",
204 "\010\002\001ISA_Timer",
205 "\010\002\002EISA_Timer",
206 "\010\003\000GeneralRTC",
207 "\010\003\001ISA_RTC",
208
209 "\010\004\001StoreThruOnly",
210 "\010\004\002StoreInEnabled",
211 "\010\004\003RS6KL2Cache",
212
213 "\010\005\000IndirectNVRAM", /* Indirectly addressed */
214 "\010\005\001DirectNVRAM", /* Memory Mapped */
215 "\010\005\002IndirectNVRAM24", /* Indirectly addressed - 24 bit */
216
217 "\010\006\000GeneralPowerManagement",
218 "\010\006\001EPOWPowerManagement",
219 "\010\006\002PowerControl", // d1378
220
221 "\010\007\000GeneralCMOS",
222
223 "\010\010\000GeneralOPPanel",
224 "\010\010\001HarddiskLight",
225 "\010\010\002CDROMLight",
226 "\010\010\003PowerLight",
227 "\010\010\004KeyLock",
228 "\010\010\005ANDisplay", /* AlphaNumeric Display */
229 "\010\010\006SystemStatusLED", /* 3 digit 7 segment LED */
230 "\010\010\007CHRP_SystemStatusLED", /* CHRP LEDs in PR*P system */
231
232 "\010\011\000GeneralServiceProcessor",
233 "\010\012\000GeneralServiceProcessor",
234 "\010\013\000GeneralServiceProcessor",
235
236 "\010\014\001TransferData",
237 "\010\014\002IGMC32",
238 "\010\014\003IGMC64",
239
240 "\010\017\000GeneralSystemPlanar", /* 10/5/95 */
241 NULL
242 };
243
244 static const unsigned char __init *PnP_SUB_TYPE_STR(unsigned char BaseType,
245 unsigned char SubType) {
246 unsigned char ** s=PnP_SUB_TYPES;
247 while (*s && !((*s)[0]==BaseType
248 && (*s)[1]==SubType)) s++;
249 if (*s) return *s+2;
250 else return("Unknown !");
251 };
252
253 static const unsigned char __init *PnP_INTERFACE_STR(unsigned char BaseType,
254 unsigned char SubType,
255 unsigned char Interface) {
256 unsigned char ** s=PnP_INTERFACES;
257 while (*s && !((*s)[0]==BaseType
258 && (*s)[1]==SubType
259 && (*s)[2]==Interface)) s++;
260 if (*s) return *s+3;
261 else return NULL;
262 };
263
264 static void __init printsmallvendor(PnP_TAG_PACKET *pkt, int size) {
265 int i, c;
266 char decomp[4];
267 #define p pkt->S14_Pack.S14_Data.S14_PPCPack
268 switch(p.Type) {
269 case 1:
270 /* Decompress first 3 chars */
271 c = *(unsigned short *)p.PPCData;
272 decomp[0]='A'-1+((c>>10)&0x1F);
273 decomp[1]='A'-1+((c>>5)&0x1F);
274 decomp[2]='A'-1+(c&0x1F);
275 decomp[3]=0;
276 printk(" Chip identification: %s%4.4X\n",
277 decomp, ld_le16((unsigned short *)(p.PPCData+2)));
278 break;
279 default:
280 printk(" Small vendor item type 0x%2.2x, data (hex): ",
281 p.Type);
282 for(i=0; i<size-2; i++) printk("%2.2x ", p.PPCData[i]);
283 printk("\n");
284 break;
285 }
286 #undef p
287 }
288
289 static void __init printsmallpacket(PnP_TAG_PACKET * pkt, int size) {
290 static const unsigned char * intlevel[] = {"high", "low"};
291 static const unsigned char * intsense[] = {"edge", "level"};
292
293 switch (tag_small_item_name(pkt->S1_Pack.Tag)) {
294 case PnPVersion:
295 printk(" PnPversion 0x%x.%x\n",
296 pkt->S1_Pack.Version[0], /* How to interpret version ? */
297 pkt->S1_Pack.Version[1]);
298 break;
299 // case Logicaldevice:
300 break;
301 // case CompatibleDevice:
302 break;
303 case IRQFormat:
304 #define p pkt->S4_Pack
305 printk(" IRQ Mask 0x%4.4x, %s %s sensitive\n",
306 ld_le16((unsigned short *)p.IRQMask),
307 intlevel[(size>3) ? !(p.IRQInfo&0x05) : 0],
308 intsense[(size>3) ? !(p.IRQInfo&0x03) : 0]);
309 #undef p
310 break;
311 case DMAFormat:
312 #define p pkt->S5_Pack
313 printk(" DMA channel mask 0x%2.2x, info 0x%2.2x\n",
314 p.DMAMask, p.DMAInfo);
315 #undef p
316 break;
317 case StartDepFunc:
318 printk("Start dependent function:\n");
319 break;
320 case EndDepFunc:
321 printk("End dependent function\n");
322 break;
323 case IOPort:
324 #define p pkt->S8_Pack
325 printk(" Variable (%d decoded bits) I/O port\n"
326 " from 0x%4.4x to 0x%4.4x, alignment %d, %d ports\n",
327 p.IOInfo&ISAAddr16bit?16:10,
328 ld_le16((unsigned short *)p.RangeMin),
329 ld_le16((unsigned short *)p.RangeMax),
330 p.IOAlign, p.IONum);
331 #undef p
332 break;
333 case FixedIOPort:
334 #define p pkt->S9_Pack
335 printk(" Fixed (10 decoded bits) I/O port from %3.3x to %3.3x\n",
336 (p.Range[1]<<8)|p.Range[0],
337 ((p.Range[1]<<8)|p.Range[0])+p.IONum-1);
338 #undef p
339 break;
340 case Res1:
341 case Res2:
342 case Res3:
343 printk(" Undefined packet type %d!\n",
344 tag_small_item_name(pkt->S1_Pack.Tag));
345 break;
346 case SmallVendorItem:
347 printsmallvendor(pkt,size);
348 break;
349 default:
350 printk(" Type 0x2.2x%d, size=%d\n",
351 pkt->S1_Pack.Tag, size);
352 break;
353 }
354 }
355
356 static void __init printlargevendor(PnP_TAG_PACKET * pkt, int size) {
357 static const unsigned char * addrtype[] = {"I/O", "Memory", "System"};
358 static const unsigned char * inttype[] = {"8259", "MPIC", "RS6k BUID %d"};
359 static const unsigned char * convtype[] = {"Bus Memory", "Bus I/O", "DMA"};
360 static const unsigned char * transtype[] = {"direct", "mapped", "direct-store segment"};
361 static const unsigned char * L2type[] = {"WriteThru", "CopyBack"};
362 static const unsigned char * L2assoc[] = {"DirectMapped", "2-way set"};
363
364 int i;
365 char tmpstr[30], *t;
366 #define p pkt->L4_Pack.L4_Data.L4_PPCPack
367 switch(p.Type) {
368 case 2:
369 printk(" %d K %s %s L2 cache, %d/%d bytes line/sector size\n",
370 ld_le32((unsigned int *)p.PPCData),
371 L2type[p.PPCData[10]-1],
372 L2assoc[p.PPCData[4]-1],
373 ld_le16((unsigned short *)p.PPCData+3),
374 ld_le16((unsigned short *)p.PPCData+4));
375 break;
376 case 3:
377 printk(" PCI Bridge parameters\n"
378 " ConfigBaseAddress %0x\n"
379 " ConfigBaseData %0x\n"
380 " Bus number %d\n",
381 ld_le32((unsigned int *)p.PPCData),
382 ld_le32((unsigned int *)(p.PPCData+8)),
383 p.PPCData[16]);
384 for(i=20; i<size-4; i+=12) {
385 int j, first;
386 if(p.PPCData[i]) printk(" PCI Slot %d", p.PPCData[i]);
387 else printk (" Integrated PCI device");
388 for(j=0, first=1, t=tmpstr; j<4; j++) {
389 int line=ld_le16((unsigned short *)(p.PPCData+i+4)+j);
390 if(line!=0xffff){
391 if(first) first=0; else *t++='/';
392 *t++='A'+j;
393 }
394 }
395 *t='\0';
396 printk(" DevFunc 0x%x interrupt line(s) %s routed to",
397 p.PPCData[i+1],tmpstr);
398 sprintf(tmpstr,
399 inttype[p.PPCData[i+2]-1],
400 p.PPCData[i+3]);
401 printk(" %s line(s) ",
402 tmpstr);
403 for(j=0, first=1, t=tmpstr; j<4; j++) {
404 int line=ld_le16((unsigned short *)(p.PPCData+i+4)+j);
405 if(line!=0xffff){
406 if(first) first=0; else *t++='/';
407 t+=sprintf(t,"%d(%c)",
408 line&0x7fff,
409 line&0x8000?'E':'L');
410 }
411 }
412 printk("%s\n",tmpstr);
413 }
414 break;
415 case 5:
416 printk(" Bridge address translation, %s decoding:\n"
417 " Processor Bus Size Conversion Translation\n"
418 " 0x%8.8x 0x%8.8x 0x%8.8x %s %s\n",
419 p.PPCData[0]&1 ? "positive" : "subtractive",
420 ld_le32((unsigned int *)p.PPCData+1),
421 ld_le32((unsigned int *)p.PPCData+3),
422 ld_le32((unsigned int *)p.PPCData+5),
423 convtype[p.PPCData[2]-1],
424 transtype[p.PPCData[1]-1]);
425 break;
426 case 6:
427 printk(" Bus speed %d Hz, %d slot(s)\n",
428 ld_le32((unsigned int *)p.PPCData),
429 p.PPCData[4]);
430 break;
431 case 7:
432 printk(" SCSI buses: %d, id(s):", p.PPCData[0]);
433 for(i=1; i<=p.PPCData[0]; i++)
434 printk(" %d%c", p.PPCData[i], i==p.PPCData[0] ? '\n' : ',');
435 break;
436 case 9:
437 printk(" %s address (%d bits), at 0x%x size 0x%x bytes\n",
438 addrtype[p.PPCData[0]-1],
439 p.PPCData[1],
440 ld_le32((unsigned int *)(p.PPCData+4)),
441 ld_le32((unsigned int *)(p.PPCData+12)));
442 break;
443 case 10:
444 sprintf(tmpstr,
445 inttype[p.PPCData[0]-1],
446 p.PPCData[1]);
447
448 printk(" ISA interrupts routed to %s\n"
449 " lines",
450 tmpstr);
451 for(i=0; i<16; i++) {
452 int line=ld_le16((unsigned short *)p.PPCData+i+1);
453 if (line!=0xffff) printk(" %d(IRQ%d)", line, i);
454 }
455 printk("\n");
456 break;
457 default:
458 printk(" Large vendor item type 0x%2.2x\n Data (hex):",
459 p.Type);
460 for(i=0; i<size-4; i++) printk(" %2.2x", p.PPCData[i]);
461 printk("\n");
462 #undef p
463 }
464 }
465
466 static void __init printlargepacket(PnP_TAG_PACKET * pkt, int size) {
467 switch (tag_large_item_name(pkt->S1_Pack.Tag)) {
468 case LargeVendorItem:
469 printlargevendor(pkt, size);
470 break;
471 default:
472 printk(" Type 0x2.2x%d, size=%d\n",
473 pkt->S1_Pack.Tag, size);
474 break;
475 }
476 }
477
478 static void __init printpackets(PnP_TAG_PACKET * pkt, const char * cat)
479 {
480 if (pkt->S1_Pack.Tag== END_TAG) {
481 printk(" No packets describing %s resources.\n", cat);
482 return;
483 }
484 printk( " Packets describing %s resources:\n",cat);
485 do {
486 int size;
487 if (tag_type(pkt->S1_Pack.Tag)) {
488 size= 3 +
489 pkt->L1_Pack.Count0 +
490 pkt->L1_Pack.Count1*256;
491 printlargepacket(pkt, size);
492 } else {
493 size=tag_small_count(pkt->S1_Pack.Tag)+1;
494 printsmallpacket(pkt, size);
495 }
496 pkt = (PnP_TAG_PACKET *)((unsigned char *) pkt + size);
497 } while (pkt->S1_Pack.Tag != END_TAG);
498 }
499
500 void __init print_residual_device_info(void)
501 {
502 int i;
503 PPC_DEVICE *dev;
504 #define did dev->DeviceId
505
506 /* make sure we have residual data first */
507 if (!have_residual_data)
508 return;
509
510 printk("Residual: %ld devices\n", res->ActualNumDevices);
511 for ( i = 0;
512 i < res->ActualNumDevices ;
513 i++)
514 {
515 char decomp[4], sn[20];
516 const char * s;
517 dev = &res->Devices[i];
518 s = PnP_INTERFACE_STR(did.BaseType, did.SubType,
519 did.Interface);
520 if(!s) {
521 sprintf(sn, "interface %d", did.Interface);
522 s=sn;
523 }
524 if ( did.BusId & PCIDEVICE )
525 printk("PCI Device, Bus %d, DevFunc 0x%x:",
526 dev->BusAccess.PCIAccess.BusNumber,
527 dev->BusAccess.PCIAccess.DevFuncNumber);
528 if ( did.BusId & PNPISADEVICE ) printk("PNPISA Device:");
529 if ( did.BusId & ISADEVICE )
530 printk("ISA Device, Slot %d, LogicalDev %d:",
531 dev->BusAccess.ISAAccess.SlotNumber,
532 dev->BusAccess.ISAAccess.LogicalDevNumber);
533 if ( did.BusId & EISADEVICE ) printk("EISA Device:");
534 if ( did.BusId & PROCESSORDEVICE )
535 printk("ProcBus Device, Bus %d, BUID %d: ",
536 dev->BusAccess.ProcBusAccess.BusNumber,
537 dev->BusAccess.ProcBusAccess.BUID);
538 if ( did.BusId & PCMCIADEVICE ) printk("PCMCIA ");
539 if ( did.BusId & VMEDEVICE ) printk("VME ");
540 if ( did.BusId & MCADEVICE ) printk("MCA ");
541 if ( did.BusId & MXDEVICE ) printk("MX ");
542 /* Decompress first 3 chars */
543 decomp[0]='A'-1+((did.DevId>>26)&0x1F);
544 decomp[1]='A'-1+((did.DevId>>21)&0x1F);
545 decomp[2]='A'-1+((did.DevId>>16)&0x1F);
546 decomp[3]=0;
547 printk(" %s%4.4lX, %s, %s, %s\n",
548 decomp, did.DevId&0xffff,
549 PnP_BASE_TYPES[did.BaseType],
550 PnP_SUB_TYPE_STR(did.BaseType,did.SubType),
551 s);
552 if ( dev->AllocatedOffset )
553 printpackets( (union _PnP_TAG_PACKET *)
554 &res->DevicePnPHeap[dev->AllocatedOffset],
555 "allocated");
556 if ( dev->PossibleOffset )
557 printpackets( (union _PnP_TAG_PACKET *)
558 &res->DevicePnPHeap[dev->PossibleOffset],
559 "possible");
560 if ( dev->CompatibleOffset )
561 printpackets( (union _PnP_TAG_PACKET *)
562 &res->DevicePnPHeap[dev->CompatibleOffset],
563 "compatible");
564 }
565 }
566
567
568 #if 0
569 static void __init printVPD(void) {
570 #define vpd res->VitalProductData
571 int ps=vpd.PageSize, i, j;
572 static const char* Usage[]={
573 "FirmwareStack", "FirmwareHeap", "FirmwareCode", "BootImage",
574 "Free", "Unpopulated", "ISAAddr", "PCIConfig",
575 "IOMemory", "SystemIO", "SystemRegs", "PCIAddr",
576 "UnPopSystemRom", "SystemROM", "ResumeBlock", "Other"
577 };
578 static const unsigned char *FWMan[]={
579 "IBM", "Motorola", "FirmWorks", "Bull"
580 };
581 static const unsigned char *FWFlags[]={
582 "Conventional", "OpenFirmware", "Diagnostics", "LowDebug",
583 "MultiBoot", "LowClient", "Hex41", "FAT",
584 "ISO9660", "SCSI_ID_Override", "Tape_Boot", "FW_Boot_Path"
585 };
586 static const unsigned char *ESM[]={
587 "Port92", "PCIConfigA8", "FF001030", "????????"
588 };
589 static const unsigned char *SIOM[]={
590 "Port850", "????????", "PCIConfigA8", "????????"
591 };
592
593 printk("Model: %s\n",vpd.PrintableModel);
594 printk("Serial: %s\n", vpd.Serial);
595 printk("FirmwareSupplier: %s\n", FWMan[vpd.FirmwareSupplier]);
596 printk("FirmwareFlags:");
597 for(j=0; j<12; j++) {
598 if (vpd.FirmwareSupports & (1<<j)) {
599 printk(" %s%c", FWFlags[j],
600 vpd.FirmwareSupports&(-2<<j) ? ',' : '\n');
601 }
602 }
603 printk("NVRamSize: %ld\n", vpd.NvramSize);
604 printk("SIMMslots: %ld\n", vpd.NumSIMMSlots);
605 printk("EndianSwitchMethod: %s\n",
606 ESM[vpd.EndianSwitchMethod>2 ? 2 : vpd.EndianSwitchMethod]);
607 printk("SpreadIOMethod: %s\n",
608 SIOM[vpd.SpreadIOMethod>3 ? 3 : vpd.SpreadIOMethod]);
609 printk("Processor/Bus frequencies (Hz): %ld/%ld\n",
610 vpd.ProcessorHz, vpd.ProcessorBusHz);
611 printk("Time Base Divisor: %ld\n", vpd.TimeBaseDivisor);
612 printk("WordWidth, PageSize: %ld, %d\n", vpd.WordWidth, ps);
613 printk("Cache sector size, Lock granularity: %ld, %ld\n",
614 vpd.CoherenceBlockSize, vpd.GranuleSize);
615 for (i=0; i<res->ActualNumMemSegs; i++) {
616 int mask=res->Segs[i].Usage, first, j;
617 printk("%8.8lx-%8.8lx ",
618 res->Segs[i].BasePage*ps,
619 (res->Segs[i].PageCount+res->Segs[i].BasePage)*ps-1);
620 for(j=15, first=1; j>=0; j--) {
621 if (mask&(1<<j)) {
622 if (first) first=0;
623 else printk(", ");
624 printk("%s", Usage[j]);
625 }
626 }
627 printk("\n");
628 }
629 }
630
631 /*
632 * Spit out some info about residual data
633 */
634 void print_residual_device_info(void)
635 {
636 int i;
637 union _PnP_TAG_PACKET *pkt;
638 PPC_DEVICE *dev;
639 #define did dev->DeviceId
640
641 /* make sure we have residual data first */
642 if (!have_residual_data)
643 return;
644 printk("Residual: %ld devices\n", res->ActualNumDevices);
645 for ( i = 0;
646 i < res->ActualNumDevices ;
647 i++)
648 {
649 dev = &res->Devices[i];
650 /*
651 * pci devices
652 */
653 if ( did.BusId & PCIDEVICE )
654 {
655 printk("PCI Device:");
656 /* unknown vendor */
657 if ( !strncmp( "Unknown", pci_strvendor(did.DevId>>16), 7) )
658 printk(" id %08lx types %d/%d", did.DevId,
659 did.BaseType, did.SubType);
660 /* known vendor */
661 else
662 printk(" %s %s",
663 pci_strvendor(did.DevId>>16),
664 pci_strdev(did.DevId>>16,
665 did.DevId&0xffff)
666 );
667
668 if ( did.BusId & PNPISADEVICE )
669 {
670 printk(" pnp:");
671 /* get pnp info on the device */
672 pkt = (union _PnP_TAG_PACKET *)
673 &res->DevicePnPHeap[dev->AllocatedOffset];
674 for (; pkt->S1_Pack.Tag != DF_END_TAG;
675 pkt++ )
676 {
677 if ( (pkt->S1_Pack.Tag == S4_Packet) ||
678 (pkt->S1_Pack.Tag == S4_Packet_flags) )
679 printk(" irq %02x%02x",
680 pkt->S4_Pack.IRQMask[0],
681 pkt->S4_Pack.IRQMask[1]);
682 }
683 }
684 printk("\n");
685 continue;
686 }
687 /*
688 * isa devices
689 */
690 if ( did.BusId & ISADEVICE )
691 {
692 printk("ISA Device: basetype: %d subtype: %d",
693 did.BaseType, did.SubType);
694 printk("\n");
695 continue;
696 }
697 /*
698 * eisa devices
699 */
700 if ( did.BusId & EISADEVICE )
701 {
702 printk("EISA Device: basetype: %d subtype: %d",
703 did.BaseType, did.SubType);
704 printk("\n");
705 continue;
706 }
707 /*
708 * proc bus devices
709 */
710 if ( did.BusId & PROCESSORDEVICE )
711 {
712 printk("ProcBus Device: basetype: %d subtype: %d",
713 did.BaseType, did.SubType);
714 printk("\n");
715 continue;
716 }
717 /*
718 * pcmcia devices
719 */
720 if ( did.BusId & PCMCIADEVICE )
721 {
722 printk("PCMCIA Device: basetype: %d subtype: %d",
723 did.BaseType, did.SubType);
724 printk("\n");
725 continue;
726 }
727 printk("Unknown bus access device: busid %lx\n",
728 did.BusId);
729 }
730 }
731 #endif
732
733 /* Returns the device index in the residual data,
734 any of the search items may be set as -1 for wildcard,
735 DevID number field (second halfword) is big endian !
736
737 Examples:
738 - search for the Interrupt controller (8259 type), 2 methods:
739 1) i8259 = residual_find_device(~0,
740 NULL,
741 SystemPeripheral,
742 ProgrammableInterruptController,
743 ISA_PIC,
744 0);
745 2) i8259 = residual_find_device(~0, "PNP0000", -1, -1, -1, 0)
746
747 - search for the first two serial devices, whatever their type)
748 iserial1 = residual_find_device(~0,NULL,
749 CommunicationsDevice,
750 RS232Device,
751 -1, 0)
752 iserial2 = residual_find_device(~0,NULL,
753 CommunicationsDevice,
754 RS232Device,
755 -1, 1)
756 - but search for typical COM1 and COM2 is not easy due to the
757 fact that the interface may be anything and the name "PNP0500" or
758 "PNP0501". Quite bad.
759
760 */
761
762 /* devid are easier to uncompress than to compress, so to minimize bloat
763 in this rarely used area we unencode and compare */
764
765 /* in residual data number is big endian in the device table and
766 little endian in the heap, so we use two parameters to avoid writing
767 two very similar functions */
768
769 static int __init same_DevID(unsigned short vendor,
770 unsigned short Number,
771 char * str)
772 {
773 static unsigned const char hexdigit[]="0123456789ABCDEF";
774 if (strlen(str)!=7) return 0;
775 if ( ( ((vendor>>10)&0x1f)+'A'-1 == str[0]) &&
776 ( ((vendor>>5)&0x1f)+'A'-1 == str[1]) &&
777 ( (vendor&0x1f)+'A'-1 == str[2]) &&
778 (hexdigit[(Number>>12)&0x0f] == str[3]) &&
779 (hexdigit[(Number>>8)&0x0f] == str[4]) &&
780 (hexdigit[(Number>>4)&0x0f] == str[5]) &&
781 (hexdigit[Number&0x0f] == str[6]) ) return 1;
782 return 0;
783 }
784
785 PPC_DEVICE __init *residual_find_device(unsigned long BusMask,
786 unsigned char * DevID,
787 int BaseType,
788 int SubType,
789 int Interface,
790 int n)
791 {
792 int i;
793 if (!have_residual_data) return NULL;
794 for (i=0; i<res->ActualNumDevices; i++) {
795 #define Dev res->Devices[i].DeviceId
796 if ( (Dev.BusId&BusMask) &&
797 (BaseType==-1 || Dev.BaseType==BaseType) &&
798 (SubType==-1 || Dev.SubType==SubType) &&
799 (Interface==-1 || Dev.Interface==Interface) &&
800 (DevID==NULL || same_DevID((Dev.DevId>>16)&0xffff,
801 Dev.DevId&0xffff, DevID)) &&
802 !(n--) ) return res->Devices+i;
803 #undef Dev
804 }
805 return NULL;
806 }
807
808 PPC_DEVICE __init *residual_find_device_id(unsigned long BusMask,
809 unsigned short DevID,
810 int BaseType,
811 int SubType,
812 int Interface,
813 int n)
814 {
815 int i;
816 if (!have_residual_data) return NULL;
817 for (i=0; i<res->ActualNumDevices; i++) {
818 #define Dev res->Devices[i].DeviceId
819 if ( (Dev.BusId&BusMask) &&
820 (BaseType==-1 || Dev.BaseType==BaseType) &&
821 (SubType==-1 || Dev.SubType==SubType) &&
822 (Interface==-1 || Dev.Interface==Interface) &&
823 (DevID==0xffff || (Dev.DevId&0xffff) == DevID) &&
824 !(n--) ) return res->Devices+i;
825 #undef Dev
826 }
827 return NULL;
828 }
829
830 static int __init
831 residual_scan_pcibridge(PnP_TAG_PACKET * pkt, struct pci_dev *dev)
832 {
833 int irq = -1;
834
835 #define data pkt->L4_Pack.L4_Data.L4_PPCPack.PPCData
836 if (dev->bus->number == data[16]) {
837 int i, size;
838
839 size = 3 + ld_le16((u_short *) (&pkt->L4_Pack.Count0));
840 for (i = 20; i < size - 4; i += 12) {
841 unsigned char pin;
842 int line_irq;
843
844 if (dev->devfn != data[i + 1])
845 continue;
846
847 pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin);
848 if (pin) {
849 line_irq = ld_le16((unsigned short *)
850 (&data[i + 4 + 2 * (pin - 1)]));
851 irq = (line_irq == 0xffff) ? 0
852 : line_irq & 0x7fff;
853 } else
854 irq = 0;
855
856 break;
857 }
858 }
859 #undef data
860
861 return irq;
862 }
863
864 int __init
865 residual_pcidev_irq(struct pci_dev *dev)
866 {
867 int i = 0;
868 int irq = -1;
869 PPC_DEVICE *bridge;
870
871 while ((bridge = residual_find_device
872 (-1, NULL, BridgeController, PCIBridge, -1, i++))) {
873
874 PnP_TAG_PACKET *pkt;
875 if (bridge->AllocatedOffset) {
876 pkt = PnP_find_large_vendor_packet(res->DevicePnPHeap +
877 bridge->AllocatedOffset, 3, 0);
878 if (!pkt)
879 continue;
880
881 irq = residual_scan_pcibridge(pkt, dev);
882 if (irq != -1)
883 break;
884 }
885 }
886
887 return (irq < 0) ? 0 : irq;
888 }
889
890 void __init residual_irq_mask(char *irq_edge_mask_lo, char *irq_edge_mask_hi)
891 {
892 PPC_DEVICE *dev;
893 int i = 0;
894 unsigned short irq_mask = 0x000; /* default to edge */
895
896 while ((dev = residual_find_device(-1, NULL, -1, -1, -1, i++))) {
897 PnP_TAG_PACKET *pkt;
898 unsigned short mask;
899 int size;
900 int offset = dev->AllocatedOffset;
901
902 if (!offset)
903 continue;
904
905 pkt = PnP_find_packet(res->DevicePnPHeap + offset,
906 IRQFormat, 0);
907 if (!pkt)
908 continue;
909
910 size = tag_small_count(pkt->S1_Pack.Tag) + 1;
911 mask = ld_le16((unsigned short *)pkt->S4_Pack.IRQMask);
912 if (size > 3 && (pkt->S4_Pack.IRQInfo & 0x0c))
913 irq_mask |= mask;
914 }
915
916 *irq_edge_mask_lo = irq_mask & 0xff;
917 *irq_edge_mask_hi = irq_mask >> 8;
918 }
919
920 unsigned int __init residual_isapic_addr(void)
921 {
922 PPC_DEVICE *isapic;
923 PnP_TAG_PACKET *pkt;
924 unsigned int addr;
925
926 isapic = residual_find_device(~0, NULL, SystemPeripheral,
927 ProgrammableInterruptController,
928 ISA_PIC, 0);
929 if (!isapic)
930 goto unknown;
931
932 pkt = PnP_find_large_vendor_packet(res->DevicePnPHeap +
933 isapic->AllocatedOffset, 9, 0);
934 if (!pkt)
935 goto unknown;
936
937 #define p pkt->L4_Pack.L4_Data.L4_PPCPack
938 /* Must be 32-bit system address */
939 if (!((p.PPCData[0] == 3) && (p.PPCData[1] == 32)))
940 goto unknown;
941
942 /* It doesn't seem to work where length != 1 (what can I say? :-/ ) */
943 if (ld_le32((unsigned int *)(p.PPCData + 12)) != 1)
944 goto unknown;
945
946 addr = ld_le32((unsigned int *) (p.PPCData + 4));
947 #undef p
948 return addr;
949 unknown:
950 return 0;
951 }
952
953 PnP_TAG_PACKET *PnP_find_packet(unsigned char *p,
954 unsigned packet_tag,
955 int n)
956 {
957 unsigned mask, masked_tag, size;
958 if(!p) return NULL;
959 if (tag_type(packet_tag)) mask=0xff; else mask=0xF8;
960 masked_tag = packet_tag&mask;
961 for(; *p != END_TAG; p+=size) {
962 if ((*p & mask) == masked_tag && !(n--))
963 return (PnP_TAG_PACKET *) p;
964 if (tag_type(*p))
965 size=ld_le16((unsigned short *)(p+1))+3;
966 else
967 size=tag_small_count(*p)+1;
968 }
969 return NULL; /* not found */
970 }
971
972 PnP_TAG_PACKET __init *PnP_find_small_vendor_packet(unsigned char *p,
973 unsigned packet_type,
974 int n)
975 {
976 int next=0;
977 while (p) {
978 p = (unsigned char *) PnP_find_packet(p, 0x70, next);
979 if (p && p[1]==packet_type && !(n--))
980 return (PnP_TAG_PACKET *) p;
981 next = 1;
982 };
983 return NULL; /* not found */
984 }
985
986 PnP_TAG_PACKET __init *PnP_find_large_vendor_packet(unsigned char *p,
987 unsigned packet_type,
988 int n)
989 {
990 int next=0;
991 while (p) {
992 p = (unsigned char *) PnP_find_packet(p, 0x84, next);
993 if (p && p[3]==packet_type && !(n--))
994 return (PnP_TAG_PACKET *) p;
995 next = 1;
996 };
997 return NULL; /* not found */
998 }
999
1000 #ifdef CONFIG_PROC_PREPRESIDUAL
1001 static int proc_prep_residual_read(char * buf, char ** start, off_t off,
1002 int count, int *eof, void *data)
1003 {
1004 int n;
1005
1006 n = res->ResidualLength - off;
1007 if (n < 0) {
1008 *eof = 1;
1009 n = 0;
1010 }
1011 else {
1012 if (n > count)
1013 n = count;
1014 else
1015 *eof = 1;
1016
1017 memcpy(buf, (char *)res + off, n);
1018 *start = buf;
1019 }
1020
1021 return n;
1022 }
1023
1024 int __init
1025 proc_prep_residual_init(void)
1026 {
1027 if (have_residual_data)
1028 create_proc_read_entry("residual", S_IRUGO, NULL,
1029 proc_prep_residual_read, NULL);
1030 return 0;
1031 }
1032
1033 __initcall(proc_prep_residual_init);
1034 #endif
WRT350N Kernel Patches