File: [local] / sys / arch / hppa64 / hppa64 / process_machdep.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:05:59 2008 UTC (16 years, 3 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: process_machdep.c,v 1.1 2005/04/01 10:40:47 mickey Exp $ */
/*
* Copyright (c) 2005 Michael Shalayeff
* All rights reserved.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER IN
* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
* OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/proc.h>
#include <sys/ptrace.h>
#include <sys/user.h>
int
process_read_regs(p, regs)
struct proc *p;
struct reg *regs;
{
struct trapframe *tf = p->p_md.md_regs;
regs->r_regs[0] = tf->tf_sar;
bcopy(&tf->tf_r1, ®s->r_regs[1], 31*8);
regs->r_pc = tf->tf_iioq[0];
regs->r_npc = tf->tf_iioq[1];
return (0);
}
int
process_read_fpregs(p, fpregs)
struct proc *p;
struct fpreg *fpregs;
{
extern paddr_t fpu_curpcb;
extern u_int fpu_enable;
if (p->p_md.md_regs->tf_cr30 == fpu_curpcb) {
mtctl(fpu_enable, CR_CCR);
fpu_save((vaddr_t)p->p_addr->u_pcb.pcb_fpregs);
mtctl(0, CR_CCR);
}
bcopy(p->p_addr->u_pcb.pcb_fpregs, fpregs, 32*8);
return (0);
}
#ifdef PTRACE
int
process_write_regs(p, regs)
struct proc *p;
struct reg *regs;
{
struct trapframe *tf = p->p_md.md_regs;
tf->tf_sar = regs->r_regs[0];
bcopy(®s->r_regs[1], &tf->tf_r1, 31*8);
tf->tf_iioq[0] = regs->r_pc | 3;
tf->tf_iioq[1] = regs->r_npc | 3;
return (0);
}
int
process_write_fpregs(p, fpregs)
struct proc *p;
struct fpreg *fpregs;
{
extern paddr_t fpu_curpcb;
if (p->p_md.md_regs->tf_cr30 == fpu_curpcb) {
fpu_exit();
fpu_curpcb = 0;
}
bcopy(fpregs, p->p_addr->u_pcb.pcb_fpregs, 32 * 8);
return (0);
}
int
process_sstep(p, sstep)
struct proc *p;
int sstep;
{
if (sstep)
return (EINVAL);
return (0);
}
int
process_set_pc(p, addr)
struct proc *p;
caddr_t addr;
{
p->p_md.md_regs->tf_iioq[1] = 4 +
(p->p_md.md_regs->tf_iioq[0] = (register_t)addr | 3);
return (0);
}
#endif /* PTRACE */