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File: [local] / sys / arch / alpha / include / pcb.h (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:04:51 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: pcb.h,v 1.8 2005/10/30 20:55:50 miod Exp $ */ /* $NetBSD: pcb.h,v 1.5 1996/11/13 22:21:00 cgd Exp $ */ /* * Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University. * All rights reserved. * * Author: Chris G. Demetriou * * 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 the * rights to redistribute these changes. */ #ifndef _ALPHA_PCB_H_ #define _ALPHA_PCB_H_ #include <machine/frame.h> #include <machine/reg.h> #include <machine/alpha_cpu.h> /* * PCB: process control block * * In this case, the hardware structure that is the defining element * for a process, and the additional state that must be saved by software * on a context switch. Fields marked [HW] are mandated by hardware; fields * marked [SW] are for the software. * * It's said in the VMS PALcode section of the AARM that the pcb address * passed to the swpctx PALcode call has to be a physical address. Not * knowing this (and trying a virtual) address proved this correct. * So we cache the physical address of the pcb in the md_proc struct. */ struct pcb { struct alpha_pcb pcb_hw; /* PALcode defined */ unsigned long pcb_context[9]; /* s[0-6], ra, ps [SW] */ struct fpreg pcb_fp; /* FP registers [SW] */ unsigned long pcb_onfault; /* for copy faults [SW] */ struct cpu_info *__volatile pcb_fpcpu; /* CPU with our FP state[SW] */ }; /* * The pcb is augmented with machine-dependent additional data for * core dumps. For the Alpha, that's a trap frame and the floating * point registers. */ struct md_coredump { struct trapframe md_tf; struct fpreg md_fpstate; }; #ifdef _KERNEL void savectx(struct pcb *); #endif #endif /* _ALPHA_PCB_H_ */