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File: [local] / sys / arch / i386 / include / db_machdep.h (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:06:13 2008 UTC (16 years, 6 months ago) by nbrk
Import of OpenBSD 4.2 release kernel tree with initial code to support Jornada 720/728, StrongARM 1110-based handheld PC. At this point kernel roots on NFS and boots into vfs_mountroot() and traps. What is supported: - glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode (needs some palette tweaks for non black/white/blue colors, i think) - saic, SA11x0 interrupt controller (needs cleanup) - sacom, SA11x0 UART (supported only as boot console for now) - SA11x0 GPIO controller fully supported (but can't handle multiple interrupt handlers on one gpio pin) - sassp, SSP port on SA11x0 that attaches spibus - Jornada microcontroller (jmcu) to control kbd, battery, etc throught the SPI bus (wskbd attaches on jmcu, but not tested) - tod functions seem work - initial code for SA-1111 (chip companion) : this is TODO Next important steps, i think: - gpio and intc on sa1111 - pcmcia support for sa11x0 (and sa1111 help logic) - REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs) - root on wd0! (using already supported PCMCIA-ATA) |
/* $OpenBSD: db_machdep.h,v 1.17 2006/11/29 22:40:13 miod Exp $ */ /* $NetBSD: db_machdep.h,v 1.9 1996/05/03 19:23:59 christos Exp $ */ /* * Mach Operating System * Copyright (c) 1991,1990 Carnegie Mellon University * All Rights Reserved. * * Permission to use, copy, modify and distribute this software and its * documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * Carnegie Mellon requests users of this software to return to * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 * * any improvements or extensions that they make and grant Carnegie Mellon * the rights to redistribute these changes. */ #ifndef _I386_DB_MACHDEP_H_ #define _I386_DB_MACHDEP_H_ /* * Machine-dependent defines for new kernel debugger. */ #include <sys/param.h> #include <uvm/uvm_extern.h> #include <machine/trap.h> typedef vaddr_t db_addr_t; /* address - unsigned */ typedef long db_expr_t; /* expression - signed */ typedef struct trapframe db_regs_t; extern db_regs_t ddb_regs; /* register state */ #define DDB_REGS (&ddb_regs) #define PC_REGS(regs) ((db_addr_t)(regs)->tf_eip) #define SET_PC_REGS(regs, value) (regs)->tf_eip = (int)(value) #define BKPT_INST 0xcc /* breakpoint instruction */ #define BKPT_SIZE (1) /* size of breakpoint inst */ #define BKPT_SET(inst) (BKPT_INST) #define FIXUP_PC_AFTER_BREAK(regs) ((regs)->tf_eip -= BKPT_SIZE) #define db_clear_single_step(regs) ((regs)->tf_eflags &= ~PSL_T) #define db_set_single_step(regs) ((regs)->tf_eflags |= PSL_T) #define IS_BREAKPOINT_TRAP(type, code) ((type) == T_BPTFLT) #define IS_WATCHPOINT_TRAP(type, code) ((type) == T_TRCTRAP && (code) & 15) #define I_CALL 0xe8 #define I_CALLI 0xff #define I_RET 0xc3 #define I_IRET 0xcf #define inst_trap_return(ins) (((ins)&0xff) == I_IRET) #define inst_return(ins) (((ins)&0xff) == I_RET) #define inst_call(ins) (((ins)&0xff) == I_CALL || \ (((ins)&0xff) == I_CALLI && \ ((ins)&0x3800) == 0x1000)) #define inst_load(ins) 0 #define inst_store(ins) 0 #define DB_MACHINE_COMMANDS /* macros for printing OS server dependent task name */ #define DB_TASK_NAME(task) db_task_name(task) #define DB_TASK_NAME_TITLE "COMMAND " #define DB_TASK_NAME_LEN 23 #define DB_NULL_TASK_NAME "? " #define DB_ELF_SYMBOLS #define DB_ELFSIZE 32 /* * Constants for KGDB. */ typedef long kgdb_reg_t; #define KGDB_NUMREGS 16 #define KGDB_BUFLEN 512 #define KGDB_ENTER breakpoint() #if 0 void db_task_name(/* task_t */); #endif /* macro for checking if a thread has used floating-point */ #define db_thread_fp_used(thread) ((thread)->pcb->ims.ifps != 0) int kdb_trap(int, int, db_regs_t *); void db_machine_init(void); int db_enter_ddb(void); void db_startcpu(int cpu); void db_stopcpu(int cpu); void i386_ipi_db(struct cpu_info *); extern struct mutex ddb_mp_mutex; /* For ddb_state */ #define DDB_STATE_NOT_RUNNING 0 #define DDB_STATE_RUNNING 1 #define DDB_STATE_EXITING 2 #endif /* _I386_DB_MACHDEP_H_ */