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-rw-r--r--arch/ppc/platforms/residual.c1034
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diff --git a/arch/ppc/platforms/residual.c b/arch/ppc/platforms/residual.c
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+++ b/arch/ppc/platforms/residual.c
@@ -0,0 +1,1034 @@
+/*
+ * Code to deal with the PReP residual data.
+ *
+ * Written by: Cort Dougan (cort@cs.nmt.edu)
+ * Improved _greatly_ and rewritten by Gabriel Paubert (paubert@iram.es)
+ *
+ * This file is based on the following documentation:
+ *
+ * IBM Power Personal Systems Architecture
+ * Residual Data
+ * Document Number: PPS-AR-FW0001
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file COPYING in the main directory of this archive
+ * for more details.
+ *
+ */
+
+#include <linux/string.h>
+#include <asm/residual.h>
+#include <asm/pnp.h>
+#include <asm/byteorder.h>
+
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/stddef.h>
+#include <linux/unistd.h>
+#include <linux/ptrace.h>
+#include <linux/slab.h>
+#include <linux/user.h>
+#include <linux/a.out.h>
+#include <linux/tty.h>
+#include <linux/major.h>
+#include <linux/interrupt.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/pci.h>
+#include <linux/ide.h>
+
+#include <asm/sections.h>
+#include <asm/mmu.h>
+#include <asm/io.h>
+#include <asm/pgtable.h>
+#include <asm/ide.h>
+
+
+unsigned char __res[sizeof(RESIDUAL)] __prepdata = {0,};
+RESIDUAL *res = (RESIDUAL *)&__res;
+
+char * PnP_BASE_TYPES[] __initdata = {
+ "Reserved",
+ "MassStorageDevice",
+ "NetworkInterfaceController",
+ "DisplayController",
+ "MultimediaController",
+ "MemoryController",
+ "BridgeController",
+ "CommunicationsDevice",
+ "SystemPeripheral",
+ "InputDevice",
+ "ServiceProcessor"
+ };
+
+/* Device Sub Type Codes */
+
+unsigned char * PnP_SUB_TYPES[] __initdata = {
+ "\001\000SCSIController",
+ "\001\001IDEController",
+ "\001\002FloppyController",
+ "\001\003IPIController",
+ "\001\200OtherMassStorageController",
+ "\002\000EthernetController",
+ "\002\001TokenRingController",
+ "\002\002FDDIController",
+ "\002\0x80OtherNetworkController",
+ "\003\000VGAController",
+ "\003\001SVGAController",
+ "\003\002XGAController",
+ "\003\200OtherDisplayController",
+ "\004\000VideoController",
+ "\004\001AudioController",
+ "\004\200OtherMultimediaController",
+ "\005\000RAM",
+ "\005\001FLASH",
+ "\005\200OtherMemoryDevice",
+ "\006\000HostProcessorBridge",
+ "\006\001ISABridge",
+ "\006\002EISABridge",
+ "\006\003MicroChannelBridge",
+ "\006\004PCIBridge",
+ "\006\005PCMCIABridge",
+ "\006\006VMEBridge",
+ "\006\200OtherBridgeDevice",
+ "\007\000RS232Device",
+ "\007\001ATCompatibleParallelPort",
+ "\007\200OtherCommunicationsDevice",
+ "\010\000ProgrammableInterruptController",
+ "\010\001DMAController",
+ "\010\002SystemTimer",
+ "\010\003RealTimeClock",
+ "\010\004L2Cache",
+ "\010\005NVRAM",
+ "\010\006PowerManagement",
+ "\010\007CMOS",
+ "\010\010OperatorPanel",
+ "\010\011ServiceProcessorClass1",
+ "\010\012ServiceProcessorClass2",
+ "\010\013ServiceProcessorClass3",
+ "\010\014GraphicAssist",
+ "\010\017SystemPlanar",
+ "\010\200OtherSystemPeripheral",
+ "\011\000KeyboardController",
+ "\011\001Digitizer",
+ "\011\002MouseController",
+ "\011\003TabletController",
+ "\011\0x80OtherInputController",
+ "\012\000GeneralMemoryController",
+ NULL
+};
+
+/* Device Interface Type Codes */
+
+unsigned char * PnP_INTERFACES[] __initdata = {
+ "\000\000\000General",
+ "\001\000\000GeneralSCSI",
+ "\001\001\000GeneralIDE",
+ "\001\001\001ATACompatible",
+
+ "\001\002\000GeneralFloppy",
+ "\001\002\001Compatible765",
+ "\001\002\002NS398_Floppy", /* NS Super I/O wired to use index
+ register at port 398 and data
+ register at port 399 */
+ "\001\002\003NS26E_Floppy", /* Ports 26E and 26F */
+ "\001\002\004NS15C_Floppy", /* Ports 15C and 15D */
+ "\001\002\005NS2E_Floppy", /* Ports 2E and 2F */
+ "\001\002\006CHRP_Floppy", /* CHRP Floppy in PR*P system */
+
+ "\001\003\000GeneralIPI",
+
+ "\002\000\000GeneralEther",
+ "\002\001\000GeneralToken",
+ "\002\002\000GeneralFDDI",
+
+ "\003\000\000GeneralVGA",
+ "\003\001\000GeneralSVGA",
+ "\003\002\000GeneralXGA",
+
+ "\004\000\000GeneralVideo",
+ "\004\001\000GeneralAudio",
+ "\004\001\001CS4232Audio", /* CS 4232 Plug 'n Play Configured */
+
+ "\005\000\000GeneralRAM",
+ /* This one is obviously wrong ! */
+ "\005\000\000PCIMemoryController", /* PCI Config Method */
+ "\005\000\001RS6KMemoryController", /* RS6K Config Method */
+ "\005\001\000GeneralFLASH",
+
+ "\006\000\000GeneralHostBridge",
+ "\006\001\000GeneralISABridge",
+ "\006\002\000GeneralEISABridge",
+ "\006\003\000GeneralMCABridge",
+ /* GeneralPCIBridge = 0, */
+ "\006\004\000PCIBridgeDirect",
+ "\006\004\001PCIBridgeIndirect",
+ "\006\004\002PCIBridgeRS6K",
+ "\006\005\000GeneralPCMCIABridge",
+ "\006\006\000GeneralVMEBridge",
+
+ "\007\000\000GeneralRS232",
+ "\007\000\001COMx",
+ "\007\000\002Compatible16450",
+ "\007\000\003Compatible16550",
+ "\007\000\004NS398SerPort", /* NS Super I/O wired to use index
+ register at port 398 and data
+ register at port 399 */
+ "\007\000\005NS26ESerPort", /* Ports 26E and 26F */
+ "\007\000\006NS15CSerPort", /* Ports 15C and 15D */
+ "\007\000\007NS2ESerPort", /* Ports 2E and 2F */
+
+ "\007\001\000GeneralParPort",
+ "\007\001\001LPTx",
+ "\007\001\002NS398ParPort", /* NS Super I/O wired to use index
+ register at port 398 and data
+ register at port 399 */
+ "\007\001\003NS26EParPort", /* Ports 26E and 26F */
+ "\007\001\004NS15CParPort", /* Ports 15C and 15D */
+ "\007\001\005NS2EParPort", /* Ports 2E and 2F */
+
+ "\010\000\000GeneralPIC",
+ "\010\000\001ISA_PIC",
+ "\010\000\002EISA_PIC",
+ "\010\000\003MPIC",
+ "\010\000\004RS6K_PIC",
+
+ "\010\001\000GeneralDMA",
+ "\010\001\001ISA_DMA",
+ "\010\001\002EISA_DMA",
+
+ "\010\002\000GeneralTimer",
+ "\010\002\001ISA_Timer",
+ "\010\002\002EISA_Timer",
+ "\010\003\000GeneralRTC",
+ "\010\003\001ISA_RTC",
+
+ "\010\004\001StoreThruOnly",
+ "\010\004\002StoreInEnabled",
+ "\010\004\003RS6KL2Cache",
+
+ "\010\005\000IndirectNVRAM", /* Indirectly addressed */
+ "\010\005\001DirectNVRAM", /* Memory Mapped */
+ "\010\005\002IndirectNVRAM24", /* Indirectly addressed - 24 bit */
+
+ "\010\006\000GeneralPowerManagement",
+ "\010\006\001EPOWPowerManagement",
+ "\010\006\002PowerControl", // d1378
+
+ "\010\007\000GeneralCMOS",
+
+ "\010\010\000GeneralOPPanel",
+ "\010\010\001HarddiskLight",
+ "\010\010\002CDROMLight",
+ "\010\010\003PowerLight",
+ "\010\010\004KeyLock",
+ "\010\010\005ANDisplay", /* AlphaNumeric Display */
+ "\010\010\006SystemStatusLED", /* 3 digit 7 segment LED */
+ "\010\010\007CHRP_SystemStatusLED", /* CHRP LEDs in PR*P system */
+
+ "\010\011\000GeneralServiceProcessor",
+ "\010\012\000GeneralServiceProcessor",
+ "\010\013\000GeneralServiceProcessor",
+
+ "\010\014\001TransferData",
+ "\010\014\002IGMC32",
+ "\010\014\003IGMC64",
+
+ "\010\017\000GeneralSystemPlanar", /* 10/5/95 */
+ NULL
+ };
+
+static const unsigned char __init *PnP_SUB_TYPE_STR(unsigned char BaseType,
+ unsigned char SubType) {
+ unsigned char ** s=PnP_SUB_TYPES;
+ while (*s && !((*s)[0]==BaseType
+ && (*s)[1]==SubType)) s++;
+ if (*s) return *s+2;
+ else return("Unknown !");
+};
+
+static const unsigned char __init *PnP_INTERFACE_STR(unsigned char BaseType,
+ unsigned char SubType,
+ unsigned char Interface) {
+ unsigned char ** s=PnP_INTERFACES;
+ while (*s && !((*s)[0]==BaseType
+ && (*s)[1]==SubType
+ && (*s)[2]==Interface)) s++;
+ if (*s) return *s+3;
+ else return NULL;
+};
+
+static void __init printsmallvendor(PnP_TAG_PACKET *pkt, int size) {
+ int i, c;
+ char decomp[4];
+#define p pkt->S14_Pack.S14_Data.S14_PPCPack
+ switch(p.Type) {
+ case 1:
+ /* Decompress first 3 chars */
+ c = *(unsigned short *)p.PPCData;
+ decomp[0]='A'-1+((c>>10)&0x1F);
+ decomp[1]='A'-1+((c>>5)&0x1F);
+ decomp[2]='A'-1+(c&0x1F);
+ decomp[3]=0;
+ printk(" Chip identification: %s%4.4X\n",
+ decomp, ld_le16((unsigned short *)(p.PPCData+2)));
+ break;
+ default:
+ printk(" Small vendor item type 0x%2.2x, data (hex): ",
+ p.Type);
+ for(i=0; i<size-2; i++) printk("%2.2x ", p.PPCData[i]);
+ printk("\n");
+ break;
+ }
+#undef p
+}
+
+static void __init printsmallpacket(PnP_TAG_PACKET * pkt, int size) {
+ static const unsigned char * intlevel[] = {"high", "low"};
+ static const unsigned char * intsense[] = {"edge", "level"};
+
+ switch (tag_small_item_name(pkt->S1_Pack.Tag)) {
+ case PnPVersion:
+ printk(" PnPversion 0x%x.%x\n",
+ pkt->S1_Pack.Version[0], /* How to interpret version ? */
+ pkt->S1_Pack.Version[1]);
+ break;
+// case Logicaldevice:
+ break;
+// case CompatibleDevice:
+ break;
+ case IRQFormat:
+#define p pkt->S4_Pack
+ printk(" IRQ Mask 0x%4.4x, %s %s sensitive\n",
+ ld_le16((unsigned short *)p.IRQMask),
+ intlevel[(size>3) ? !(p.IRQInfo&0x05) : 0],
+ intsense[(size>3) ? !(p.IRQInfo&0x03) : 0]);
+#undef p
+ break;
+ case DMAFormat:
+#define p pkt->S5_Pack
+ printk(" DMA channel mask 0x%2.2x, info 0x%2.2x\n",
+ p.DMAMask, p.DMAInfo);
+#undef p
+ break;
+ case StartDepFunc:
+ printk("Start dependent function:\n");
+ break;
+ case EndDepFunc:
+ printk("End dependent function\n");
+ break;
+ case IOPort:
+#define p pkt->S8_Pack
+ printk(" Variable (%d decoded bits) I/O port\n"
+ " from 0x%4.4x to 0x%4.4x, alignment %d, %d ports\n",
+ p.IOInfo&ISAAddr16bit?16:10,
+ ld_le16((unsigned short *)p.RangeMin),
+ ld_le16((unsigned short *)p.RangeMax),
+ p.IOAlign, p.IONum);
+#undef p
+ break;
+ case FixedIOPort:
+#define p pkt->S9_Pack
+ printk(" Fixed (10 decoded bits) I/O port from %3.3x to %3.3x\n",
+ (p.Range[1]<<8)|p.Range[0],
+ ((p.Range[1]<<8)|p.Range[0])+p.IONum-1);
+#undef p
+ break;
+ case Res1:
+ case Res2:
+ case Res3:
+ printk(" Undefined packet type %d!\n",
+ tag_small_item_name(pkt->S1_Pack.Tag));
+ break;
+ case SmallVendorItem:
+ printsmallvendor(pkt,size);
+ break;
+ default:
+ printk(" Type 0x2.2x%d, size=%d\n",
+ pkt->S1_Pack.Tag, size);
+ break;
+ }
+}
+
+static void __init printlargevendor(PnP_TAG_PACKET * pkt, int size) {
+ static const unsigned char * addrtype[] = {"I/O", "Memory", "System"};
+ static const unsigned char * inttype[] = {"8259", "MPIC", "RS6k BUID %d"};
+ static const unsigned char * convtype[] = {"Bus Memory", "Bus I/O", "DMA"};
+ static const unsigned char * transtype[] = {"direct", "mapped", "direct-store segment"};
+ static const unsigned char * L2type[] = {"WriteThru", "CopyBack"};
+ static const unsigned char * L2assoc[] = {"DirectMapped", "2-way set"};
+
+ int i;
+ char tmpstr[30], *t;
+#define p pkt->L4_Pack.L4_Data.L4_PPCPack
+ switch(p.Type) {
+ case 2:
+ printk(" %d K %s %s L2 cache, %d/%d bytes line/sector size\n",
+ ld_le32((unsigned int *)p.PPCData),
+ L2type[p.PPCData[10]-1],
+ L2assoc[p.PPCData[4]-1],
+ ld_le16((unsigned short *)p.PPCData+3),
+ ld_le16((unsigned short *)p.PPCData+4));
+ break;
+ case 3:
+ printk(" PCI Bridge parameters\n"
+ " ConfigBaseAddress %0x\n"
+ " ConfigBaseData %0x\n"
+ " Bus number %d\n",
+ ld_le32((unsigned int *)p.PPCData),
+ ld_le32((unsigned int *)(p.PPCData+8)),
+ p.PPCData[16]);
+ for(i=20; i<size-4; i+=12) {
+ int j, first;
+ if(p.PPCData[i]) printk(" PCI Slot %d", p.PPCData[i]);
+ else printk (" Integrated PCI device");
+ for(j=0, first=1, t=tmpstr; j<4; j++) {
+ int line=ld_le16((unsigned short *)(p.PPCData+i+4)+j);
+ if(line!=0xffff){
+ if(first) first=0; else *t++='/';
+ *t++='A'+j;
+ }
+ }
+ *t='\0';
+ printk(" DevFunc 0x%x interrupt line(s) %s routed to",
+ p.PPCData[i+1],tmpstr);
+ sprintf(tmpstr,
+ inttype[p.PPCData[i+2]-1],
+ p.PPCData[i+3]);
+ printk(" %s line(s) ",
+ tmpstr);
+ for(j=0, first=1, t=tmpstr; j<4; j++) {
+ int line=ld_le16((unsigned short *)(p.PPCData+i+4)+j);
+ if(line!=0xffff){
+ if(first) first=0; else *t++='/';
+ t+=sprintf(t,"%d(%c)",
+ line&0x7fff,
+ line&0x8000?'E':'L');
+ }
+ }
+ printk("%s\n",tmpstr);
+ }
+ break;
+ case 5:
+ printk(" Bridge address translation, %s decoding:\n"
+ " Processor Bus Size Conversion Translation\n"
+ " 0x%8.8x 0x%8.8x 0x%8.8x %s %s\n",
+ p.PPCData[0]&1 ? "positive" : "subtractive",
+ ld_le32((unsigned int *)p.PPCData+1),
+ ld_le32((unsigned int *)p.PPCData+3),
+ ld_le32((unsigned int *)p.PPCData+5),
+ convtype[p.PPCData[2]-1],
+ transtype[p.PPCData[1]-1]);
+ break;
+ case 6:
+ printk(" Bus speed %d Hz, %d slot(s)\n",
+ ld_le32((unsigned int *)p.PPCData),
+ p.PPCData[4]);
+ break;
+ case 7:
+ printk(" SCSI buses: %d, id(s):", p.PPCData[0]);
+ for(i=1; i<=p.PPCData[0]; i++)
+ printk(" %d%c", p.PPCData[i], i==p.PPCData[0] ? '\n' : ',');
+ break;
+ case 9:
+ printk(" %s address (%d bits), at 0x%x size 0x%x bytes\n",
+ addrtype[p.PPCData[0]-1],
+ p.PPCData[1],
+ ld_le32((unsigned int *)(p.PPCData+4)),
+ ld_le32((unsigned int *)(p.PPCData+12)));
+ break;
+ case 10:
+ sprintf(tmpstr,
+ inttype[p.PPCData[0]-1],
+ p.PPCData[1]);
+
+ printk(" ISA interrupts routed to %s\n"
+ " lines",
+ tmpstr);
+ for(i=0; i<16; i++) {
+ int line=ld_le16((unsigned short *)p.PPCData+i+1);
+ if (line!=0xffff) printk(" %d(IRQ%d)", line, i);
+ }
+ printk("\n");
+ break;
+ default:
+ printk(" Large vendor item type 0x%2.2x\n Data (hex):",
+ p.Type);
+ for(i=0; i<size-4; i++) printk(" %2.2x", p.PPCData[i]);
+ printk("\n");
+#undef p
+ }
+}
+
+static void __init printlargepacket(PnP_TAG_PACKET * pkt, int size) {
+ switch (tag_large_item_name(pkt->S1_Pack.Tag)) {
+ case LargeVendorItem:
+ printlargevendor(pkt, size);
+ break;
+ default:
+ printk(" Type 0x2.2x%d, size=%d\n",
+ pkt->S1_Pack.Tag, size);
+ break;
+ }
+}
+
+static void __init printpackets(PnP_TAG_PACKET * pkt, const char * cat)
+{
+ if (pkt->S1_Pack.Tag== END_TAG) {
+ printk(" No packets describing %s resources.\n", cat);
+ return;
+ }
+ printk( " Packets describing %s resources:\n",cat);
+ do {
+ int size;
+ if (tag_type(pkt->S1_Pack.Tag)) {
+ size= 3 +
+ pkt->L1_Pack.Count0 +
+ pkt->L1_Pack.Count1*256;
+ printlargepacket(pkt, size);
+ } else {
+ size=tag_small_count(pkt->S1_Pack.Tag)+1;
+ printsmallpacket(pkt, size);
+ }
+ pkt = (PnP_TAG_PACKET *)((unsigned char *) pkt + size);
+ } while (pkt->S1_Pack.Tag != END_TAG);
+}
+
+void __init print_residual_device_info(void)
+{
+ int i;
+ PPC_DEVICE *dev;
+#define did dev->DeviceId
+
+ /* make sure we have residual data first */
+ if (!have_residual_data)
+ return;
+
+ printk("Residual: %ld devices\n", res->ActualNumDevices);
+ for ( i = 0;
+ i < res->ActualNumDevices ;
+ i++)
+ {
+ char decomp[4], sn[20];
+ const char * s;
+ dev = &res->Devices[i];
+ s = PnP_INTERFACE_STR(did.BaseType, did.SubType,
+ did.Interface);
+ if(!s) {
+ sprintf(sn, "interface %d", did.Interface);
+ s=sn;
+ }
+ if ( did.BusId & PCIDEVICE )
+ printk("PCI Device, Bus %d, DevFunc 0x%x:",
+ dev->BusAccess.PCIAccess.BusNumber,
+ dev->BusAccess.PCIAccess.DevFuncNumber);
+ if ( did.BusId & PNPISADEVICE ) printk("PNPISA Device:");
+ if ( did.BusId & ISADEVICE )
+ printk("ISA Device, Slot %d, LogicalDev %d:",
+ dev->BusAccess.ISAAccess.SlotNumber,
+ dev->BusAccess.ISAAccess.LogicalDevNumber);
+ if ( did.BusId & EISADEVICE ) printk("EISA Device:");
+ if ( did.BusId & PROCESSORDEVICE )
+ printk("ProcBus Device, Bus %d, BUID %d: ",
+ dev->BusAccess.ProcBusAccess.BusNumber,
+ dev->BusAccess.ProcBusAccess.BUID);
+ if ( did.BusId & PCMCIADEVICE ) printk("PCMCIA ");
+ if ( did.BusId & VMEDEVICE ) printk("VME ");
+ if ( did.BusId & MCADEVICE ) printk("MCA ");
+ if ( did.BusId & MXDEVICE ) printk("MX ");
+ /* Decompress first 3 chars */
+ decomp[0]='A'-1+((did.DevId>>26)&0x1F);
+ decomp[1]='A'-1+((did.DevId>>21)&0x1F);
+ decomp[2]='A'-1+((did.DevId>>16)&0x1F);
+ decomp[3]=0;
+ printk(" %s%4.4lX, %s, %s, %s\n",
+ decomp, did.DevId&0xffff,
+ PnP_BASE_TYPES[did.BaseType],
+ PnP_SUB_TYPE_STR(did.BaseType,did.SubType),
+ s);
+ if ( dev->AllocatedOffset )
+ printpackets( (union _PnP_TAG_PACKET *)
+ &res->DevicePnPHeap[dev->AllocatedOffset],
+ "allocated");
+ if ( dev->PossibleOffset )
+ printpackets( (union _PnP_TAG_PACKET *)
+ &res->DevicePnPHeap[dev->PossibleOffset],
+ "possible");
+ if ( dev->CompatibleOffset )
+ printpackets( (union _PnP_TAG_PACKET *)
+ &res->DevicePnPHeap[dev->CompatibleOffset],
+ "compatible");
+ }
+}
+
+
+#if 0
+static void __init printVPD(void) {
+#define vpd res->VitalProductData
+ int ps=vpd.PageSize, i, j;
+ static const char* Usage[]={
+ "FirmwareStack", "FirmwareHeap", "FirmwareCode", "BootImage",
+ "Free", "Unpopulated", "ISAAddr", "PCIConfig",
+ "IOMemory", "SystemIO", "SystemRegs", "PCIAddr",
+ "UnPopSystemRom", "SystemROM", "ResumeBlock", "Other"
+ };
+ static const unsigned char *FWMan[]={
+ "IBM", "Motorola", "FirmWorks", "Bull"
+ };
+ static const unsigned char *FWFlags[]={
+ "Conventional", "OpenFirmware", "Diagnostics", "LowDebug",
+ "MultiBoot", "LowClient", "Hex41", "FAT",
+ "ISO9660", "SCSI_ID_Override", "Tape_Boot", "FW_Boot_Path"
+ };
+ static const unsigned char *ESM[]={
+ "Port92", "PCIConfigA8", "FF001030", "????????"
+ };
+ static const unsigned char *SIOM[]={
+ "Port850", "????????", "PCIConfigA8", "????????"
+ };
+
+ printk("Model: %s\n",vpd.PrintableModel);
+ printk("Serial: %s\n", vpd.Serial);
+ printk("FirmwareSupplier: %s\n", FWMan[vpd.FirmwareSupplier]);
+ printk("FirmwareFlags:");
+ for(j=0; j<12; j++) {
+ if (vpd.FirmwareSupports & (1<<j)) {
+ printk(" %s%c", FWFlags[j],
+ vpd.FirmwareSupports&(-2<<j) ? ',' : '\n');
+ }
+ }
+ printk("NVRamSize: %ld\n", vpd.NvramSize);
+ printk("SIMMslots: %ld\n", vpd.NumSIMMSlots);
+ printk("EndianSwitchMethod: %s\n",
+ ESM[vpd.EndianSwitchMethod>2 ? 2 : vpd.EndianSwitchMethod]);
+ printk("SpreadIOMethod: %s\n",
+ SIOM[vpd.SpreadIOMethod>3 ? 3 : vpd.SpreadIOMethod]);
+ printk("Processor/Bus frequencies (Hz): %ld/%ld\n",
+ vpd.ProcessorHz, vpd.ProcessorBusHz);
+ printk("Time Base Divisor: %ld\n", vpd.TimeBaseDivisor);
+ printk("WordWidth, PageSize: %ld, %d\n", vpd.WordWidth, ps);
+ printk("Cache sector size, Lock granularity: %ld, %ld\n",
+ vpd.CoherenceBlockSize, vpd.GranuleSize);
+ for (i=0; i<res->ActualNumMemSegs; i++) {
+ int mask=res->Segs[i].Usage, first, j;
+ printk("%8.8lx-%8.8lx ",
+ res->Segs[i].BasePage*ps,
+ (res->Segs[i].PageCount+res->Segs[i].BasePage)*ps-1);
+ for(j=15, first=1; j>=0; j--) {
+ if (mask&(1<<j)) {
+ if (first) first=0;
+ else printk(", ");
+ printk("%s", Usage[j]);
+ }
+ }
+ printk("\n");
+ }
+}
+
+/*
+ * Spit out some info about residual data
+ */
+void print_residual_device_info(void)
+{
+ int i;
+ union _PnP_TAG_PACKET *pkt;
+ PPC_DEVICE *dev;
+#define did dev->DeviceId
+
+ /* make sure we have residual data first */
+ if (!have_residual_data)
+ return;
+ printk("Residual: %ld devices\n", res->ActualNumDevices);
+ for ( i = 0;
+ i < res->ActualNumDevices ;
+ i++)
+ {
+ dev = &res->Devices[i];
+ /*
+ * pci devices
+ */
+ if ( did.BusId & PCIDEVICE )
+ {
+ printk("PCI Device:");
+ /* unknown vendor */
+ if ( !strncmp( "Unknown", pci_strvendor(did.DevId>>16), 7) )
+ printk(" id %08lx types %d/%d", did.DevId,
+ did.BaseType, did.SubType);
+ /* known vendor */
+ else
+ printk(" %s %s",
+ pci_strvendor(did.DevId>>16),
+ pci_strdev(did.DevId>>16,
+ did.DevId&0xffff)
+ );
+
+ if ( did.BusId & PNPISADEVICE )
+ {
+ printk(" pnp:");
+ /* get pnp info on the device */
+ pkt = (union _PnP_TAG_PACKET *)
+ &res->DevicePnPHeap[dev->AllocatedOffset];
+ for (; pkt->S1_Pack.Tag != DF_END_TAG;
+ pkt++ )
+ {
+ if ( (pkt->S1_Pack.Tag == S4_Packet) ||
+ (pkt->S1_Pack.Tag == S4_Packet_flags) )
+ printk(" irq %02x%02x",
+ pkt->S4_Pack.IRQMask[0],
+ pkt->S4_Pack.IRQMask[1]);
+ }
+ }
+ printk("\n");
+ continue;
+ }
+ /*
+ * isa devices
+ */
+ if ( did.BusId & ISADEVICE )
+ {
+ printk("ISA Device: basetype: %d subtype: %d",
+ did.BaseType, did.SubType);
+ printk("\n");
+ continue;
+ }
+ /*
+ * eisa devices
+ */
+ if ( did.BusId & EISADEVICE )
+ {
+ printk("EISA Device: basetype: %d subtype: %d",
+ did.BaseType, did.SubType);
+ printk("\n");
+ continue;
+ }
+ /*
+ * proc bus devices
+ */
+ if ( did.BusId & PROCESSORDEVICE )
+ {
+ printk("ProcBus Device: basetype: %d subtype: %d",
+ did.BaseType, did.SubType);
+ printk("\n");
+ continue;
+ }
+ /*
+ * pcmcia devices
+ */
+ if ( did.BusId & PCMCIADEVICE )
+ {
+ printk("PCMCIA Device: basetype: %d subtype: %d",
+ did.BaseType, did.SubType);
+ printk("\n");
+ continue;
+ }
+ printk("Unknown bus access device: busid %lx\n",
+ did.BusId);
+ }
+}
+#endif
+
+/* Returns the device index in the residual data,
+ any of the search items may be set as -1 for wildcard,
+ DevID number field (second halfword) is big endian !
+
+ Examples:
+ - search for the Interrupt controller (8259 type), 2 methods:
+ 1) i8259 = residual_find_device(~0,
+ NULL,
+ SystemPeripheral,
+ ProgrammableInterruptController,
+ ISA_PIC,
+ 0);
+ 2) i8259 = residual_find_device(~0, "PNP0000", -1, -1, -1, 0)
+
+ - search for the first two serial devices, whatever their type)
+ iserial1 = residual_find_device(~0,NULL,
+ CommunicationsDevice,
+ RS232Device,
+ -1, 0)
+ iserial2 = residual_find_device(~0,NULL,
+ CommunicationsDevice,
+ RS232Device,
+ -1, 1)
+ - but search for typical COM1 and COM2 is not easy due to the
+ fact that the interface may be anything and the name "PNP0500" or
+ "PNP0501". Quite bad.
+
+*/
+
+/* devid are easier to uncompress than to compress, so to minimize bloat
+in this rarely used area we unencode and compare */
+
+/* in residual data number is big endian in the device table and
+little endian in the heap, so we use two parameters to avoid writing
+two very similar functions */
+
+static int __init same_DevID(unsigned short vendor,
+ unsigned short Number,
+ char * str)
+{
+ static unsigned const char hexdigit[]="0123456789ABCDEF";
+ if (strlen(str)!=7) return 0;
+ if ( ( ((vendor>>10)&0x1f)+'A'-1 == str[0]) &&
+ ( ((vendor>>5)&0x1f)+'A'-1 == str[1]) &&
+ ( (vendor&0x1f)+'A'-1 == str[2]) &&
+ (hexdigit[(Number>>12)&0x0f] == str[3]) &&
+ (hexdigit[(Number>>8)&0x0f] == str[4]) &&
+ (hexdigit[(Number>>4)&0x0f] == str[5]) &&
+ (hexdigit[Number&0x0f] == str[6]) ) return 1;
+ return 0;
+}
+
+PPC_DEVICE __init *residual_find_device(unsigned long BusMask,
+ unsigned char * DevID,
+ int BaseType,
+ int SubType,
+ int Interface,
+ int n)
+{
+ int i;
+ if (!have_residual_data) return NULL;
+ for (i=0; i<res->ActualNumDevices; i++) {
+#define Dev res->Devices[i].DeviceId
+ if ( (Dev.BusId&BusMask) &&
+ (BaseType==-1 || Dev.BaseType==BaseType) &&
+ (SubType==-1 || Dev.SubType==SubType) &&
+ (Interface==-1 || Dev.Interface==Interface) &&
+ (DevID==NULL || same_DevID((Dev.DevId>>16)&0xffff,
+ Dev.DevId&0xffff, DevID)) &&
+ !(n--) ) return res->Devices+i;
+#undef Dev
+ }
+ return NULL;
+}
+
+PPC_DEVICE __init *residual_find_device_id(unsigned long BusMask,
+ unsigned short DevID,
+ int BaseType,
+ int SubType,
+ int Interface,
+ int n)
+{
+ int i;
+ if (!have_residual_data) return NULL;
+ for (i=0; i<res->ActualNumDevices; i++) {
+#define Dev res->Devices[i].DeviceId
+ if ( (Dev.BusId&BusMask) &&
+ (BaseType==-1 || Dev.BaseType==BaseType) &&
+ (SubType==-1 || Dev.SubType==SubType) &&
+ (Interface==-1 || Dev.Interface==Interface) &&
+ (DevID==0xffff || (Dev.DevId&0xffff) == DevID) &&
+ !(n--) ) return res->Devices+i;
+#undef Dev
+ }
+ return NULL;
+}
+
+static int __init
+residual_scan_pcibridge(PnP_TAG_PACKET * pkt, struct pci_dev *dev)
+{
+ int irq = -1;
+
+#define data pkt->L4_Pack.L4_Data.L4_PPCPack.PPCData
+ if (dev->bus->number == data[16]) {
+ int i, size;
+
+ size = 3 + ld_le16((u_short *) (&pkt->L4_Pack.Count0));
+ for (i = 20; i < size - 4; i += 12) {
+ unsigned char pin;
+ int line_irq;
+
+ if (dev->devfn != data[i + 1])
+ continue;
+
+ pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin);
+ if (pin) {
+ line_irq = ld_le16((unsigned short *)
+ (&data[i + 4 + 2 * (pin - 1)]));
+ irq = (line_irq == 0xffff) ? 0
+ : line_irq & 0x7fff;
+ } else
+ irq = 0;
+
+ break;
+ }
+ }
+#undef data
+
+ return irq;
+}
+
+int __init
+residual_pcidev_irq(struct pci_dev *dev)
+{
+ int i = 0;
+ int irq = -1;
+ PPC_DEVICE *bridge;
+
+ while ((bridge = residual_find_device
+ (-1, NULL, BridgeController, PCIBridge, -1, i++))) {
+
+ PnP_TAG_PACKET *pkt;
+ if (bridge->AllocatedOffset) {
+ pkt = PnP_find_large_vendor_packet(res->DevicePnPHeap +
+ bridge->AllocatedOffset, 3, 0);
+ if (!pkt)
+ continue;
+
+ irq = residual_scan_pcibridge(pkt, dev);
+ if (irq != -1)
+ break;
+ }
+ }
+
+ return (irq < 0) ? 0 : irq;
+}
+
+void __init residual_irq_mask(char *irq_edge_mask_lo, char *irq_edge_mask_hi)
+{
+ PPC_DEVICE *dev;
+ int i = 0;
+ unsigned short irq_mask = 0x000; /* default to edge */
+
+ while ((dev = residual_find_device(-1, NULL, -1, -1, -1, i++))) {
+ PnP_TAG_PACKET *pkt;
+ unsigned short mask;
+ int size;
+ int offset = dev->AllocatedOffset;
+
+ if (!offset)
+ continue;
+
+ pkt = PnP_find_packet(res->DevicePnPHeap + offset,
+ IRQFormat, 0);
+ if (!pkt)
+ continue;
+
+ size = tag_small_count(pkt->S1_Pack.Tag) + 1;
+ mask = ld_le16((unsigned short *)pkt->S4_Pack.IRQMask);
+ if (size > 3 && (pkt->S4_Pack.IRQInfo & 0x0c))
+ irq_mask |= mask;
+ }
+
+ *irq_edge_mask_lo = irq_mask & 0xff;
+ *irq_edge_mask_hi = irq_mask >> 8;
+}
+
+unsigned int __init residual_isapic_addr(void)
+{
+ PPC_DEVICE *isapic;
+ PnP_TAG_PACKET *pkt;
+ unsigned int addr;
+
+ isapic = residual_find_device(~0, NULL, SystemPeripheral,
+ ProgrammableInterruptController,
+ ISA_PIC, 0);
+ if (!isapic)
+ goto unknown;
+
+ pkt = PnP_find_large_vendor_packet(res->DevicePnPHeap +
+ isapic->AllocatedOffset, 9, 0);
+ if (!pkt)
+ goto unknown;
+
+#define p pkt->L4_Pack.L4_Data.L4_PPCPack
+ /* Must be 32-bit system address */
+ if (!((p.PPCData[0] == 3) && (p.PPCData[1] == 32)))
+ goto unknown;
+
+ /* It doesn't seem to work where length != 1 (what can I say? :-/ ) */
+ if (ld_le32((unsigned int *)(p.PPCData + 12)) != 1)
+ goto unknown;
+
+ addr = ld_le32((unsigned int *) (p.PPCData + 4));
+#undef p
+ return addr;
+unknown:
+ return 0;
+}
+
+PnP_TAG_PACKET *PnP_find_packet(unsigned char *p,
+ unsigned packet_tag,
+ int n)
+{
+ unsigned mask, masked_tag, size;
+ if(!p) return NULL;
+ if (tag_type(packet_tag)) mask=0xff; else mask=0xF8;
+ masked_tag = packet_tag&mask;
+ for(; *p != END_TAG; p+=size) {
+ if ((*p & mask) == masked_tag && !(n--))
+ return (PnP_TAG_PACKET *) p;
+ if (tag_type(*p))
+ size=ld_le16((unsigned short *)(p+1))+3;
+ else
+ size=tag_small_count(*p)+1;
+ }
+ return NULL; /* not found */
+}
+
+PnP_TAG_PACKET __init *PnP_find_small_vendor_packet(unsigned char *p,
+ unsigned packet_type,
+ int n)
+{
+ int next=0;
+ while (p) {
+ p = (unsigned char *) PnP_find_packet(p, 0x70, next);
+ if (p && p[1]==packet_type && !(n--))
+ return (PnP_TAG_PACKET *) p;
+ next = 1;
+ };
+ return NULL; /* not found */
+}
+
+PnP_TAG_PACKET __init *PnP_find_large_vendor_packet(unsigned char *p,
+ unsigned packet_type,
+ int n)
+{
+ int next=0;
+ while (p) {
+ p = (unsigned char *) PnP_find_packet(p, 0x84, next);
+ if (p && p[3]==packet_type && !(n--))
+ return (PnP_TAG_PACKET *) p;
+ next = 1;
+ };
+ return NULL; /* not found */
+}
+
+#ifdef CONFIG_PROC_PREPRESIDUAL
+static int proc_prep_residual_read(char * buf, char ** start, off_t off,
+ int count, int *eof, void *data)
+{
+ int n;
+
+ n = res->ResidualLength - off;
+ if (n < 0) {
+ *eof = 1;
+ n = 0;
+ }
+ else {
+ if (n > count)
+ n = count;
+ else
+ *eof = 1;
+
+ memcpy(buf, (char *)res + off, n);
+ *start = buf;
+ }
+
+ return n;
+}
+
+int __init
+proc_prep_residual_init(void)
+{
+ if (have_residual_data)
+ create_proc_read_entry("residual", S_IRUGO, NULL,
+ proc_prep_residual_read, NULL);
+ return 0;
+}
+
+__initcall(proc_prep_residual_init);
+#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-17 16:01:32 +0000