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freebsd-skq/sys/ia64/include/pcb.h

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This is the first snapshot of the FreeBSD/ia64 kernel. This kernel will not work on any real hardware (or fully work on any simulator). Much more needs to happen before this is actually functional but its nice to see the FreeBSD copyright message appear in the ia64 simulator.
2000-09-29 13:46:07 +00:00
/*-
* Copyright (c) 2000 Doug Rabson
* 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
*
* $FreeBSD$
*/
#ifndef _MACHINE_PCB_H_
#define _MACHINE_PCB_H_
/*
* PCB: process control block
*/
struct pcb {
u_int64_t pcb_r4;
u_int64_t pcb_r5;
u_int64_t pcb_r6;
u_int64_t pcb_r7;
struct ia64_fpreg pcb_f2;
struct ia64_fpreg pcb_f3;
struct ia64_fpreg pcb_f4;
struct ia64_fpreg pcb_f5;
Next round of ia64 work, including fixes to context switching, implementing cpu_fork(), copy*str(), bcopy(), copy{in,out}(). With these changes, my test kernel reaches the mountroot prompt.
2000-09-30 17:48:44 +00:00
u_int64_t pcb_b0; /* really restart address */
u_int64_t pcb_b1;
u_int64_t pcb_b2;
u_int64_t pcb_b3;
u_int64_t pcb_b4;
u_int64_t pcb_b5;
This is the first snapshot of the FreeBSD/ia64 kernel. This kernel will not work on any real hardware (or fully work on any simulator). Much more needs to happen before this is actually functional but its nice to see the FreeBSD copyright message appear in the ia64 simulator.
2000-09-29 13:46:07 +00:00
u_int64_t pcb_old_unat; /* caller's ar.unat */
u_int64_t pcb_sp;
u_int64_t pcb_pfs;
u_int64_t pcb_bspstore;
o Add ar.lc to the pcb. o Create pcb_save as the backend for savectx and cpu_switch. o While here, use explicit bundling for pcb_save and optimize for compactness (~87% density). o Not part of the commit is a backend pcb_restore. restorectx() still jumps halfway into cpu_switch().
2002-05-07 05:52:27 +00:00
u_int64_t pcb_lc;
This is the first snapshot of the FreeBSD/ia64 kernel. This kernel will not work on any real hardware (or fully work on any simulator). Much more needs to happen before this is actually functional but its nice to see the FreeBSD copyright message appear in the ia64 simulator.
2000-09-29 13:46:07 +00:00
u_int64_t pcb_unat; /* ar.unat for r4..r7 */
u_int64_t pcb_rnat;
u_int64_t pcb_pr; /* predicates */
Add a field to hold the current pmap of a thread.
2002-03-14 19:19:49 +00:00
u_int64_t pcb_pmap; /* current pmap */
This is the first snapshot of the FreeBSD/ia64 kernel. This kernel will not work on any real hardware (or fully work on any simulator). Much more needs to happen before this is actually functional but its nice to see the FreeBSD copyright message appear in the ia64 simulator.
2000-09-29 13:46:07 +00:00
Add fields for saving/restoring the IA-32 state.
2002-04-10 19:23:21 +00:00
u_int64_t pcb_fsr;
u_int64_t pcb_fcr;
u_int64_t pcb_fir;
u_int64_t pcb_fdr;
u_int64_t pcb_eflag;
u_int64_t pcb_csd;
u_int64_t pcb_ssd;
Next round of ia64 work, including fixes to context switching, implementing cpu_fork(), copy*str(), bcopy(), copy{in,out}(). With these changes, my test kernel reaches the mountroot prompt.
2000-09-30 17:48:44 +00:00
u_int64_t pcb_onfault; /* for copy faults */
u_int64_t pcb_accessaddr; /* for [fs]uswintr */
* Fix exception handling so that it actually works. We can now handle exceptions from both kernel and user mode. * Fix context switching so that we can switch back to a proc which we switched away from (we were saving the state in the wrong place). * Implement lazy switching of the high-fp state. This needs to be looked at again for SMP to cope with the case of a process migrating from one processor to another while it has the high-fp state. * Make setregs() work properly. I still think this should be called cpu_exec() or something. * Various other minor fixes. With this lot, we can execve() /sbin/init and we get all the way up to its first syscall. At that point, we stop because syscall handling is not done yet.
2000-10-12 14:36:39 +00:00
struct ia64_fpreg pcb_highfp[96]; /* f32-f127 */
This is the first snapshot of the FreeBSD/ia64 kernel. This kernel will not work on any real hardware (or fully work on any simulator). Much more needs to happen before this is actually functional but its nice to see the FreeBSD copyright message appear in the ia64 simulator.
2000-09-29 13:46:07 +00:00
};
/*
* The pcb is augmented with machine-dependent additional data for
o Move prototypes for restorectx and savectx from cpu.h to pcb.h, o Remove Alpha specific contents of struct md_coredump.
2002-05-19 04:14:42 +00:00
* core dumps. Not applicable...
This is the first snapshot of the FreeBSD/ia64 kernel. This kernel will not work on any real hardware (or fully work on any simulator). Much more needs to happen before this is actually functional but its nice to see the FreeBSD copyright message appear in the ia64 simulator.
2000-09-29 13:46:07 +00:00
*/
struct md_coredump {
};
o Move prototypes for restorectx and savectx from cpu.h to pcb.h, o Remove Alpha specific contents of struct md_coredump.
2002-05-19 04:14:42 +00:00
#ifdef _KERNEL
void restorectx(struct pcb *);
void savectx(struct pcb *);
#endif
This is the first snapshot of the FreeBSD/ia64 kernel. This kernel will not work on any real hardware (or fully work on any simulator). Much more needs to happen before this is actually functional but its nice to see the FreeBSD copyright message appear in the ia64 simulator.
2000-09-29 13:46:07 +00:00
#endif /* _MACHINE_PCB_H_ */
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