76e4555f2c
additional processors are spun up on multiprocessor Alpha systems. Now, each processor gets its own idle thread (the primary processor uses proc0). This idle thread is used in switch_exit(), rather than explicitly referencing proc0. Also, make `curproc', `fpcurproc', and `curpcb' per-cpu values. This required some data structure rearrangement; cpu info is now statically allocated in the BSS, rather than via malloc(), and cpu_softc is gone. (Modeled somewhat after NetBSD/sparc's multiprocessor info structures.)
46 lines
1.4 KiB
C
46 lines
1.4 KiB
C
/* $NetBSD: proc.h,v 1.4 1999/02/23 03:20:04 thorpej Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1994, 1995 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.
|
|
*/
|
|
|
|
#ifdef _KERNEL
|
|
/* For `curproc' multiprocessor glue. */
|
|
#include <alpha/alpha/cpuvar.h>
|
|
#endif /* _KERNEL */
|
|
|
|
/*
|
|
* Machine-dependent part of the proc struct for the Alpha.
|
|
*/
|
|
|
|
struct mdproc {
|
|
u_long md_flags;
|
|
struct trapframe *md_tf; /* trap/syscall registers */
|
|
struct pcb *md_pcbpaddr; /* phys addr of the pcb */
|
|
};
|
|
|
|
#define MDP_FPUSED 0x0001 /* Process used the FPU */
|