File: [local] / sys / arch / alpha / include / db_machdep.h (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:04:51 2008 UTC (16 years, 6 months ago) by nbrk
Branch: OPENBSD_4_2_BASE, MAIN
CVS Tags: jornada-partial-support-wip, HEAD Changes since 1.1: +0 -0 lines
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)
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/* $OpenBSD: db_machdep.h,v 1.19 2005/12/17 07:31:23 miod Exp $ */
/*
* Copyright (c) 1997 Niklas Hallqvist. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _ALPHA_DB_MACHDEP_H_
#define _ALPHA_DB_MACHDEP_H_
/* XXX - Need to include vm.h for boolean_t */
#include <uvm/uvm_extern.h>
/*
* We use Elf64 symbols in DDB.
*/
#define DB_ELF_SYMBOLS
#define DB_ELFSIZE 64
struct opcode {
enum opc_fmt { OPC_PAL, OPC_RES, OPC_MEM, OPC_OP, OPC_BR } opc_fmt;
char *opc_name;
int opc_print;
};
extern struct opcode opcode[];
/* types the generic ddb module needs */
typedef vaddr_t db_addr_t;
typedef long db_expr_t;
typedef struct trapframe db_regs_t;
extern db_regs_t ddb_regs;
#define DDB_REGS (&ddb_regs)
#define PC_REGS(regs) ((db_addr_t)(regs)->tf_regs[FRAME_PC])
#define SET_PC_REGS(regs, value) (regs)->tf_regs[FRAME_PC] = (unsigned long)(value)
/* Breakpoint related definitions */
#define BKPT_INST 0x00000080 /* call_pal bpt */
#define BKPT_SIZE sizeof(int)
#define BKPT_SET(inst) BKPT_INST
#define IS_BREAKPOINT_TRAP(type, code) \
((type) == ALPHA_KENTRY_IF && (code) == ALPHA_IF_CODE_BPT)
#ifdef notyet
#define IS_WATCHPOINT_TRAP(type, code) ((type) == ALPHA_KENTRY_MM)
#else
#define IS_WATCHPOINT_TRAP(type, code) 0
#endif
#define FIXUP_PC_AFTER_BREAK(regs) ((regs)->tf_regs[FRAME_PC] -= sizeof(int))
#define SOFTWARE_SSTEP
#define DB_VALID_BREAKPOINT(addr) db_valid_breakpoint(addr)
/* Hack to skip GCC "unused" warnings. */
#define inst_trap_return(ins) ((ins) & 0) /* XXX */
#define inst_return(ins) (((ins) & 0xfc000000) == 0x68000000)
int alpha_debug(unsigned long, unsigned long, unsigned long,
unsigned long, struct trapframe *);
db_addr_t db_branch_taken(int, db_addr_t, db_regs_t *);
boolean_t db_inst_branch(int);
boolean_t db_inst_call(int);
boolean_t db_inst_load(int);
boolean_t db_inst_return(int);
boolean_t db_inst_store(int);
boolean_t db_inst_trap_return(int);
boolean_t db_inst_unconditional_flow_transfer(int);
u_long db_register_value(db_regs_t *, int);
int db_valid_breakpoint(db_addr_t);
int ddb_trap(unsigned long, unsigned long, unsigned long,
unsigned long, struct trapframe *);
int kdb_trap(int, int, db_regs_t *);
db_addr_t next_instr_address(db_addr_t, int);
#if 1
/* Backwards compatibility until we switch all archs to use the db_ prefix */
#define branch_taken(ins, pc, fun, regs) db_branch_taken((ins), (pc), (regs))
#define inst_branch db_inst_branch
#define inst_call db_inst_call
#define inst_load db_inst_load
#define inst_store db_inst_store
#endif
#endif /* _ALPHA_DB_MACHDEP_H_ */