/* sysLib.c - PC [34]86/Pentium/Pentium[234] system-dependent library *//* Copyright 1984-2002 Wind River Systems, Inc. */#include "copyright_wrs.h"/*modification history--------------------05c,21jun02,pai  Linker-defined <end> symbol is now cast to an unsigned                 integer instead of a signed integer where needed.                 Updated commentary and page-sized stride in sysPhysMemTop()                 memory auto-size algorithm (SPR 79525).05b,12jul02,dmh  include sysNvRam.c based value of NV_RAM_SIZE instead of                 IACSF05a,11jul02,dmh  remove SFL_START_ADDR for iacsfl-based BSPs.04z,04jul02,hdn  added the checksum to the FAST_REBOOT mechanism.04y,18jun02,hdn  cleaned up sysPhysMemDesc[] and new reboot mechanism.04x,03jun02,pai  Updated sysMmuMapAdd() documentation.  Modified file I/O                 status messages in sysToMonitor().04w,05jun02,hdn  added 2MB page size support for 36Bit MMU04v,25may02,hdn  updated sysMmuMapAdd to align VM_PAGE_SIZE (spr 77530)		 added intLock/Unlock in sysIntLock/Unlock (spr 75694)04u,24may02,hdn  replaced PAGE_SIZE with VM_PAGE_SIZE for 4MB page04t,23may02,pai  Add WindML device initialization to sysHwInit().04s,20may02,rhe  added USB support for ohci cards. SPR# 7630804r,09may02,hdn  added Pentium4 Asymmetric Multi Processor configuration04q,29apr02,pai  Complete the fix for (SPR 8385).  Modified sysPhysMemTop()                 will now auto-size a larger address space.04p,28apr02,hdn  added optional new i8259 PIC specific features (spr 76411)04o,22apr02,pai  Removed configuration related to obsolete SMC Ultra Netif                 driver.04n,09apr02,pai  Reworked ATA configuration and documentation (SPR# 73848).                 Added sysHwInit0() for the (SPR 74951) fix implementation.04m,01apr02,jkf  Added _WRS_BSP_DEBUG_NULL_ACCESS to generate exception when                 code accesses to lower page of memory, null ptr, occur.04l,25mar02,pai  Conditionally include MTRR table based upon PENTIUM2/3/4 CPU                 types - a modification to the version 04k implementation.04k,22mar02,pai  Do not include <sysMtrr> table for P5/PENTIUM builds (SPR#                 73939).04j,21mar02,pai  Make pciConfigShow configurable based upon the                 INCLUDE_PCI_CFGSHOW component (SPR 74274).04i,12mar02,hdn  replaced redTable[] with sysInumTbl[] for HTT (spr 73738)04h,07mar02,hdn  excluded MTRR code from P5 (spr 73939)04g,03dec01,jkf  sysToMonitor: checks if device exists before creation,                 and using new macros for device and file name strings.04f,27nov01,dmh  move include of iacsfl.h from sysLib.c to config.h04e,16nov01,ahm  added power management mode initialization (SPR#32599)04d,06nov01,hdn  added PIRQ[n] and IOAPIC support for Pentium404c,02nov01,dmh  add nvram for iacsfl boards. SPR# 7043304b,01nov01,hdn  added MSRs init, reset PM, enabled MCA w pentiumMcaEnable()04a,01nov01,jln  added support for gei82543End driver03z,22oct01,dmh  replace iPiix4 support with pciAutoConfig. SPR# 65192.03y,17oct01,hdn  removed duplicate sysMmuMapAdd() prototype.		 moved enabling MC exception into excArchLib.		 added LOCAL_MEM_AUTOSIZE in sysPhysMemTop().		 made LOWER_MEM_TOP configurable to preserve the MP table.03x,11oct01,pai  Updating details related to BSP NIC driver support.  Removed                 INCLUDE_EEX32 and INCLUDE_FEI definition conditional on                 DOC macro.  Updated description of BSP driver config                 routines.  Added PCI library customization and BSP-specific                 PCI support.  Implemented new PCI Ethernet controller                 initialization (SPR# 35716) and (SPR# 69775).03w,01oct01,hdn  replaced INT_NUM_GET(LPT0_INT_LVL) with INT_NUM_LPT003v,26sep01,pai  Added support for dec21x40End driver.  Added sysLn97xEnd                 driver configuration file.  Added WindML BSP routines.                 sysToMonitor() now opens bootrom.sys as RDONLY (SPR 23057).03u,24sep01,pai  Updated LPT resource table and macros (SPR 30067).03t,11sep01,hdn  renamed XXX_INT_VEC to INT_NUM_XXX as vector no of XXX		 updated sysIntEoiGet() as APIC's INT_LVL got cleaned up		 updated CPUID structure for PENTIUM4		 removed sysCodeSelector.03s,16aug01,hdn  added PENTIUM2/3/4 support03r,15aug01,hdn  included iacsfl.h if INCLUDE_IACSFL is defined.03q,15jun00,jkf  release floppy disk on reboot(), SPR#3028003p,15jun00,jkf  sysPhysMemTop() loop changed to report all found memory.03o,03may00,mks  modified sysHwInit and sysToMonitor to support SFL based                 boot process.03n,07sep99,stv  macros for including END driver components are 		 conditioned according to SPR# 26296.03m,21apr99,hdn  added conditional tffsDrv.h inclusion (SPR# 26922)03l,12mar99,cn   added support for el3c90xEnd driver (SPR# 25327).03k,09mar99,sbs  added support for ne2000End driver                 added support for ultraEnd driver                 added support for elt3c509End driver03j,01feb99,jkf  added END support for AMD 7997x PCI card.03i,26jan99,jkf  changed sysHwInit2 to use INCLUDE_ADD_BOOTMEM and                 removed ATA_MEM_DOSFS from sysToMonitor.  SPR#2133803h,31mar98,cn   Added Enhanced Network Driver support.03g,04jun98,hdn  made sysIntLevel() faster. added sysIntCount[] for debug.03f,28may98,hdn  added support for APIC.03e,12may98,hdn  merged with pcPentium/sysLib.c. obsolete INCLUDE_IDE.03d,23apr98,yp   merged TrueFFS support.03c,16apr98,hdn  added sysCpuid[] for sysCpuProbe().03b,17mar98,sbs  using macro for dummy mmu entry.                 added forward declaration for sysMmuMapAdd().                 changed sysIntIdtType and sysWarmType to use macros.                   documentation update.03a,12mar98,sbs  moved PCI initialization from sysPhysMemTop() to sysHwInit().                 changed the PCI library calls to the new updated library API.                  moved sys557PciInit() from sysPhysMemTop() to sysHwInit().                 added sysAic7880PciInit().02z,02mar98,sbs  removed device specific mmu entries and added dynamic entries                 in sysPhysMemDesc table.                 added sysMmuMapAdd().                 added initialization of sysPhysMemDescNumEnt in sysHwInit().02y,06jan98,hdn  included tffsDrv.h.02x,15dec97,hdn  added support for warm start from TFFS device.02w,10jul97,dds  added SCSI-2 support.02v,24mar97,mas  added sysPhysMemTop(); removed NOMANUAL from sysHwInit2();                 parameterized the sysWarm* reboot variables (SPR 7806, 7850).02u,03dec96,hdn  added sys557PciInit().  		 moved PCI initialization from sysHwInit2() to sysMemTop().02t,22nov96,dat  added sysNetif.c, for all network support rtns. (if_eex32.c		 and if_i82557 were combined into sysNetif.c)02s,20nov96,db   conditionally defined INCLUDE_EEX32 for man page(SPR #6190).02r,20nov96,hdn  added support for PRO100B.  02q,01nov96,hdn  added support for PCMCIA.  02p,21oct96,hdn  removed lptTimeout, added lptResources[].02o,14oct96,dat  removed ref to i8253TimerTS.c, merged from windview102.02n,24sep96,hdn  fixed by removing IMPORT ATA_RESOURCE ataResources[].02m,03sep96,hdn  added the compression support. 		 changed constants to ROM_WARM_HIGH and ROM_WARM_LOW.02l,09aug96,hdn  renamed INT_VEC_IRQ0 to INT_NUM_IRQ0.02k,26jul96,hdn  shut off warning message: "implicit declaration of function"02j,18jul96,hdn  added support for INCLUDE_ATA.02i,19jul96,wlf  doc: cleanup.02h,25jun96,hdn  added support for TIMESTAMP timer.02g,17jun96,hdn  initialized sysProcessor to NONE02f,14jun96,hdn  added support for PCI bus.02e,28may96,hdn  renamed PIT_INT_xxx to PIT0_INT_xxx.02d,28sep95,dat  new BSP revision id02c,27sep95,hdn  fixed a typo by changing IO_ADRS_ULTRA to IO_ADRS_ELC.02b,14jun95,hdn  added a global variable sysCodeSelector.		 added a local function sysIntVecSetEnt(), sysIntVecSetExit().		 renamed pSysEndOfInt to intEOI.		 moved global function declarations to sysLib.h.02a,14jun95,myz  moved serial configuration to sysSerial.c01z,07jan95,hdn  added an accurate memory size checking.01y,31oct94,hdn  changed sysMemTop() to find out a memory size.		 deleted sysGDT and used sysGdt in sysALib.s.		 added the Intel EtherExpress32 driver.		 deleted a conditional macro for INCLUDE_LPT.		 swapped 1st and 2nd parameter of fdDevCreate().		 imported globals to timeout IDE and LPT.01x,12oct94,hdn  deleted sysBootType.		 added a conditional macro for INCLUDE_LPT.01w,29may94,hdn  moved sysCpuProbe() to cacheArchLib.c.		 added open and read bootrom.dat in sysToMonitor().01v,22apr94,hdn  moved sysVectorIRQ0 from i8259Pic.c.		 made new globals sysFdBuf and sysFdBufSize.		 supported the warm start from the EPROM.01u,06apr94,hdn  added sysCpuProbe().01t,17feb94,hdn  deleted memAddToPool() in sysHwInit2().		 added a conditional statement in sysMemTop().		 changed sysWarmType 0 to 1.01s,03feb94,hdn  added MMU conditional macro for the limit in the GDT.01r,29nov93,hdn  added sysBspRev () routine.01q,22nov93,hdn  added xxdetach () routine for warm start.01p,16nov93,hdn  added sysWarmType which controls warm start device.01o,09nov93,hdn  added warm start (control X).01n,08nov93,vin  added support pc console drivers.01m,27oct93,hdn  added memAddToPool stuff to sysHwInit2().01l,12oct93,hdn  changed PIT_INT_VEC_NUM to PIT_INT_VEC.01k,05sep93,hdn  moved PIC related functions to intrCtl/i8259Pic.c.		 added sysDelay ().01j,12aug93,hdn  changed a global descriptor table sysGDT.		 deleted sysGDTSet.01i,11aug93,hdn  added a global sysVectorIRQ0.01h,03aug93,hdn  changed a mapping IRQ to Vector Table.01g,26jul93,hdn  added a memory descriptor table sysPhysMemDesc[].01f,25jun93,hdn  changed sysToMonitor() to call sysReboot.01e,24jun93,hdn  changed the initialization of PIC.01d,17jun93,hdn  updated to 5.1.01c,08apr93,jdi  doc cleanup.01d,07apr93,hdn  renamed Compaq to PC.01c,26mar93,hdn  added the global descriptor table, memAddToPool.		 moved enabling A20 to romInit.s. added cacheClear for 486.01b,18nov92,hdn  supported nested interrupt.01a,15may92,hdn  written based on frc386 version.*//*DESCRIPTIONThis library provides board-specific routines.  The device configurationmodules and device drivers included are:    i8253Timer.c - Intel 8253 timer driver    i8259Intr.c - Intel 8259 Programmable Interrupt Controller (PIC) library    ioApicIntr.c - Intel IO APIC/xAPIC driver    ioApicIntrShow.c - Intel IO APIC/xAPIC driver show routines    iPiix4Pci.c - low level initalization code for PCI ISA/IDE Xcelerator    loApicIntr.c - Intel Pentium[234] Local APIC/xAPIC driver    loApicIntrShow.c - Intel Local APIC/xAPIC driver show routines    loApicTimer.c - Intel Pentium2/3/4 Local APIC timer library    nullNvRam.c - null NVRAM library    nullVme.c - null VMEbus library    pccardLib.c - PC CARD enabler library    pccardShow.c - PC CARD show library    pciCfgStub.c - customizes pciConfigLib for the BSP    pciCfgIntStub.c - customizes pciIntLib for the BSP    pciConfigLib.c - PCI configuration space access support for PCI drivers    pciIntLib.c - PCI shared interrupt support    pciConfigShow.c - Show routines for PCI configuration library    sysDec21x40End.c - system configuration module for dec21x40End driver    sysEl3c509End.c - system configuratin module for elt3c509End driver    sysEl3c90xEnd.c -  system configuration module for el3c90xEnd driver    sysFei82557End.c - system configuration module for fei82557End driver    sysGei82543End.c - system configuration module for gei82543End driver    sysLn97xEnd.c - system configuration module for ln97xEnd driver    sysNe2000End.c - system configuration module for ne2000End driver    sysUltraEnd.c - system configuration module for SMC Elite ultraEnd driver    sysWindML.c - WindML BSP support routinesINCLUDE FILES: sysLib.hSEE ALSO:.pG "Configuration"*//* includes (header file) */#include "vxWorks.h"#include "vme.h"#include "memLib.h"#include "sysLib.h"#include "string.h"#include "intLib.h"#include "config.h"#include "logLib.h"#include "taskLib.h"#include "vxLib.h"#include "errnoLib.h"#include "dosFsLib.h"#include "stdio.h"#include "cacheLib.h"#include "private/vmLibP.h"#include "arch/i86/pentiumLib.h"#ifdef	INCLUDE_TFFS#   include "tffs/tffsDrv.h"#endif	/* INCLUDE_TFFS */#ifdef  INCLUDE_SMCFDC37B78X#   include "drv/multi/smcFdc37b78x.h"#   ifndef PRJ_BUILD#       include "multi/smcFdc37b78x.c"#   endif /* PRJ_BUILD */#endif  /* INCLUDE_SMCFDC37B78X */#if defined(INCLUDE_PC_CONSOLE) && defined(INCLUDE_CTB69000VGA)#   ifndef PRJ_BUILD#       include "video/ctB69000Vga.c"#   endif /* PRJ_BUILD */#endif  /* INCLUDE_PC_CONSOLE && INCLUDE_CTB69000VGA *//* defines */#define ROM_SIGNATURE_SIZE	16#if	(VM_PAGE_SIZE == PAGE_SIZE_4KB)#   if	(LOCAL_MEM_LOCAL_ADRS >= 0x00100000)#       define LOCAL_MEM_SIZE_OS	0x00180000	/* n * VM_PAGE_SIZE */#   else#       define LOCAL_MEM_SIZE_OS	0x00080000	/* n * VM_PAGE_SIZE */#   endif /* (LOCAL_MEM_LOCAL_ADRS >= 0x00100000) */#else	/* VM_PAGE_SIZE is 2/4MB */#   define LOCAL_MEM_SIZE_OS		VM_PAGE_SIZE	/* n * VM_PAGE_SIZE */#endif	/* (VM_PAGE_SIZE == PAGE_SIZE_4KB) */#if	defined (TGT_CPU) && defined (BOOTCODE_IN_RAM)#   ifndef FAST_REBOOT#       define FAST_REBOOT				/* fast reboot */#   endif#endif	/* defined (TGT_CPU) && defined (BOOTCODE_IN_RAM) *//* * IA-32 protected mode physical address space 4GB (2^32) and protected * mode physical address space extension 64GB (2^36) size constants. */#define SIZE_ADDR_SPACE_32   (0x100000000ull)#define SIZE_ADDR_SPACE_36   (0x1000000000ull)/* maximum address space probed when using memory auto-sizing */#define PHYS_MEM_MAX         (SIZE_ADDR_SPACE_32)#define HALF(x)              (((x) + 1) >> 1)/* sysPhysMemTop() memory test patterns */#define TEST_PATTERN_A       (0x57696E64)#define TEST_PATTERN_B       (0x52697665)#define TEST_PATTERN_C       (0x72537973)#define TEST_PATTERN_D       (0x74656D73)/* imports */IMPORT char        end;                       /* linker defined end-of-image */IMPORT GDT         sysGdt[];                  /* the global descriptor table */IMPORT void        elcdetach (int unit);IMPORT VOIDFUNCPTR intEoiGet;                 /* BOI/EOI function pointer */IMPORT void        intEnt (void);IMPORT int         sysCpuProbe (void);        /* set a type of CPU family */IMPORT VOID        sysUsbOhciPciInit (void);  /* USB OHCI Init *//* globals */PHYS_MEM_DESC sysPhysMemDesc [] =    {    /* adrs and length parameters must be page-aligned (multiples of 4KB/4MB) */#if	(VM_PAGE_SIZE == PAGE_SIZE_4KB)    /*     * Defining _WRS_BSP_DEBUG_NULL_ACCESS for debugging configuration.     * Doing so explicitly marks some lower memory invalid.     * Any code access to the invalid address range will generate     * a MMU exception and the offending task will be suspended.     * Then use l(), lkAddr, ti(), and tt() to find the NULL access.     * Defining _WRS_BSP_DEBUG_NULL_ACCESS adds an entry to the front     * of the sysPhysMemDesc[] array. Any code which alters this table     * will need adjustment (for example: sysPhysMemTop() is altered     * to account for another entry into the sysPhysMemDesc[] array     * when _WRS_BSP_DEBUG_NULL_ACCESS is defined.     */    /* lower memory for invalid access */    {    (void *) 0x0,    (void *) 0x0,    _WRS_BSP_VM_PAGE_OFFSET,#   ifdef _WRS_BSP_DEBUG_NULL_ACCESS    VM_STATE_MASK_VALID | VM_STATE_MASK_WRITABLE | VM_STATE_MASK_CACHEABLE,    VM_STATE_VALID_NOT  | VM_STATE_WRITABLE_NOT  | VM_STATE_CACHEABLE_NOT#   else    VM_STATE_MASK_FOR_ALL,    VM_STATE_FOR_MEM_OS#   endif /* _WRS_BSP_DEBUG_NULL_ACCESS */    },    /* lower memory for valid access */    {    (void *) _WRS_BSP_VM_PAGE_OFFSET,    (void *) _WRS_BSP_VM_PAGE_OFFSET,    0xa0000 - _WRS_BSP_VM_PAGE_OFFSET,    VM_STATE_MASK_FOR_ALL,    VM_STATE_FOR_MEM_OS    },    /* video ram, etc */    {    (void *) 0x000a0000,    (void *) 0x000a0000,    0x00060000,    VM_STATE_MASK_FOR_ALL,    VM_STATE_FOR_IO    },#   if (LOCAL_MEM_LOCAL_ADRS >= 0x00100000)    /* upper memory for OS */    {    (void *) LOCAL_MEM_LOCAL_ADRS,    (void *) LOCAL_MEM_LOCAL_ADRS,    LOCAL_MEM_SIZE_OS,    VM_STATE_MASK_FOR_ALL,    VM_STATE_FOR_MEM_OS    },