📄 cpu.addrs.h
字号:
/* * cpu.addrs.h * * @(#)cpu.addrs.h 1.1 92/07/30 SMI * Copyright (c) 1986 by Sun Microsystems, Inc. * * Memory Addresses of interest in the Sun-4 Monitor memory map. * * Since "sunromvec.h" is exported to the world, a change invalidates all * object programs that use it (e.g. stand-alone diagnostics, demos, boot * code, etc.) until they are re-compiled with the new version of include * file "sunromvec.h". As a transition aid, it is often useful to specially * map the old "sunromvec" location(s) so they also work. *//* * According to the architecture manual, the three uppermost (most * significant) virtual address bits must be equal (either "000" or * "111"). Therfore, virtual addresses 0x20000000 through 0xdfffffff, * inclusive, are illegal. */#define INVALID_ADDRESS_START 0x20000000#define INVALID_ADDRESS_END 0xE0000000/* * The following define the base addresses in mappable memory where * the various devices and forms of memory are mapped in when the EPROM * Monitor powers up. On-going operation of the monitor requires that * these locations remain mapped as they were. */#define KEYBMOUSE_BASE ((struct zscc_device *) 0xFFD00000) /* On */#define SERIAL0_BASE ((struct zscc_device *) 0xFFD02000) /* board */#define EEPROM_BASE ((unsigned char *) 0xFFD04000) /* input */#define CLOCK_BASE ((struct intersil7170 *) 0xFFD06000) /* and */#define MEMORY_ERR_BASE ((struct memreg *) 0xFFD08000) /* output */#define INTERRUPT_BASE ((unsigned char *) 0xFFD0A000) /* devices. */#define ETHER_BASE ((struct obie_device *) 0xFFD0C000)#define ETHER_CR_BASE ((unsigned char *) 0xF6000000)#ifndef COBRA#define COLORMAP_BASE ((struct obcolormap *) 0xFFD0E000)#endif COBRA#ifndef FIRMWARE#define COLORMAP_BASE ((struct obcolormap *) 0xFFD0E000)#endif FIRMWARE#define AMD_ETHER_BASE ((struct amd_ether *) 0xFFD10000)#define SCSI_BASE ((struct scsichip *) 0xFFD12000)#define DES_BASE ((struct deschip *) 0xFFD14000)#ifdef COBRA#define P4_REG ((unsigned int *) 0xFFD16000) /* P4 video ID */#else COBRA#define ECC_CTRL_BASE ((struct ecc_ctrl *) 0xFFD16000)#endif COBRA#define ETHER_CR_INT (0x10) /* Ethernet Control Reg Enable Interrupt bit. */#define ETHER_CR_CAT (0x20) /* Ethernet Control Reg Channel Attention bit. */#define ETHER_CR_LOOPB (0x30) /* Ethernet Control Reg Loop Back bit. */#define ETHER_CR_RESET (0x40) /* Ethernet Control Reg RESET bit. */#define VIDEOMEM_BASE ((char *) 0xFFD40000) /* Video memory. */#define ETHER_SCP_OFF 0xfffffff6 /* Virtual address for ethernet SCP. */#ifdef COBRA#define P4_OVERLAY_BASE VIDEOMEM_BASE#define BW_ENABLE_MEM_BASE ((char *) 0xFFD60000) /* TEMP addr */#define BW_ENABLE_MEM_SIZE 0x40000#define COLOR_FB_BASE ((char *) 0xFFC00000)#define COLORMAP_BASE ((char *) 0xFFD0E000)#endif COBRA#ifdef FIRMWARE/* * The physical addresses are used in help menu (bmchelp.c) only. */#define PA_KEYBMOUSE 0xF0000000#define PA_SERIAL0_BASE 0xF1000000#define PA_EEPROM_BASE 0xF2000000#define PA_CLOCK_BASE 0xF3000000#define PA_MEMORY_ERR_BASE 0xF4000000#define PA_INTERRUPT_BASE 0xF5000000#define PA_ETHER_BASE 0xF6000000#define PA_COLORMAP_BASE 0xF7000000#define PA_SCSI_BASE 0xa000000#define PA_DES_BASE 0xFE000000#define PA_ECC_CTRL_BASE 0xFF1E0000#define PA_VIDEOMEM_BASE 0xFD000000#endif FIRMWARE/* * Handy place to map the invalid PMEG. Also red zone for stack. */#define INVPMEG_BASE ((char *) 0xFFD80000)/* * Monitor scratch RAM. One page for the STACK. * One page for the TRAP VECTOR TABLE and FONT TABLE. */#define STACK_BASE ((char *) 0xFFDC0000)#define STACK_TOP ((char *) 0xFFDC2000)#define TRAP_VECTOR_BASE (0xFFDC2000)#define FONT_BASE ((char *) 0xFFDC2400)#define NUMBER_OF_TRAPS 256/* * These definitions allow easy and accurate access into the TRAP VECTOR TABLE. */#define HARD_RESET (TRAP_VECTOR_BASE)#define INSTRUCTION_ACCESS_EXCEPTION (TRAP_VECTOR_BASE+4)#define ILLEGAL_INSTRUCTION (TRAP_VECTOR_BASE+2*4)#define PRIVELEGED_INSTRUCTION (TRAP_VECTOR_BASE+3*4)#define FP_DISABLED (TRAP_VECTOR_BASE+4*4)#define WINDOW_OVERFLOW (TRAP_VECTOR_BASE+5*4)#define WINDOW_UNDERFLOW (TRAP_VECTOR_BASE+6*4)#define MEMORY_ADDRESS_NOT_ALIGNED (TRAP_VECTOR_BASE+7*4)#define FP_EXCEPTION (TRAP_VECTOR_BASE+8*4)#define DATA_ACCESS_EXCEPTION (TRAP_VECTOR_BASE+9*4)#define TAG_OVERFLOW (TRAP_VECTOR_BASE+10*4)#define INTERRUPT_LEVEL_1 (TRAP_VECTOR_BASE+17*4)#define INTERRUPT_LEVEL_2 (TRAP_VECTOR_BASE+18*4)#define INTERRUPT_LEVEL_3 (TRAP_VECTOR_BASE+19*4)#define INTERRUPT_LEVEL_4 (TRAP_VECTOR_BASE+20*4)#define INTERRUPT_LEVEL_5 (TRAP_VECTOR_BASE+21*4)#define INTERRUPT_LEVEL_6 (TRAP_VECTOR_BASE+22*4)#define INTERRUPT_LEVEL_7 (TRAP_VECTOR_BASE+23*4)#define INTERRUPT_LEVEL_8 (TRAP_VECTOR_BASE+24*4)#define INTERRUPT_LEVEL_9 (TRAP_VECTOR_BASE+25*4)#define INTERRUPT_LEVEL_10 (TRAP_VECTOR_BASE+26*4)#define INTERRUPT_LEVEL_11 (TRAP_VECTOR_BASE+27*4)#define INTERRUPT_LEVEL_12 (TRAP_VECTOR_BASE+28*4)#define INTERRUPT_LEVEL_13 (TRAP_VECTOR_BASE+29*4)#define INTERRUPT_LEVEL_14 (TRAP_VECTOR_BASE+30*4)#define INTERRUPT_LEVEL_15 (TRAP_VECTOR_BASE+31*4)#define SETBUS (TRAP_VECTOR_BASE+254*4)#define ABORT (TRAP_VECTOR_BASE+255*4)/* * RAM page used to hold the valid main memory pages bitmap if memory * fails self-test. This will be mapped invalid if memory was all OK. */#define MAINMEM_BITMAP ((char *) 0xFFDC2000) /* ??? WRONG! chg later. *//* * Roughly 512K for mapping in devices and main memory during boot. * Mapped invalid otherwise (to Invalid PMEG if a whole pmeg invalid). */#define BOOTMAP_BASE ((char *) 0xFFDC4000) /* ??? WRONG! chg later. *//* * Location of EPROM code. The system executes out of these addresses. * If the value of "PROM_BASE", defined below, is changed, several other * changes are required. A complete list of required changes is given below. * (1) Makefile: RELOC= * (2) ../h/sunromvec.h: #define romp */#define PROM_BASE ((struct sunromvec *) 0xFFE80000)/* * First hardware virtual address where DVMA is possible. * The Monitor does not normally use this address range, but * does use it during bootstrap, via the resalloc() routine. */#define DVMA_BASE ((char *) 0xFFF00000)/* * The Monitor maps only as much main memory as it can detect. The rest * of the address space (up through the special addresses defined above) * is mapped as invalid. * * The last pmeg in the page map is always filled with PME_INVALID * entries. This pmeg number ("The Invalid Pmeg Number") can be used to * invalidate an entire segment's worth of memory. * B E C A R E F U L ! * If you change a page map entry in this pmeg, you change it for thousands * of virtual addresses. (The standard "getpagemap"/"setpagemap" routines * will cause a trap if you attempt to write a valid page map entry to this * pmeg, but you could do it by hand if you really wanted to mess things up.) * * Because there is eight times as much virtual memory space in a single * context as there are total pmegs to map it with, much of the monitor's * memory map must be re-mappings of the same pmegs. Specifically, * NSEGMAP/NUMPMEGS different segment table entries map to each pmeg * of the page table. There is no reason to duplicate useful addresses, * and several reasons not to, so we map the extra virtual address space * with the Invalid Pmeg Number. This means that some of the address space * has their own page map entries, and the other part all shares the one * Invalid pmeg. Remember this when trying to map things; if the address * you want is seg-mapped to the Invalid pmeg, you had better find it a * pmeg before you set a page map entry. * * The Monitor always uses page map entry PME_INVALID to map an invalid * page, although the only relevant bits are the (nonzero) permission bits * and the (zero) Valid bit. PME_INVALID is defined in ./structconst.h, * which is generated by the Monitor makefile. */#define SEG_INVALID NUMPMEGS-1#define EEPROM ((struct eeprom *) 0xFFD04000)⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -