47483092bd
since it was write-only. When setting up a process, make sure the fake callframes are properly linked together. Only lower SPL when in Idle loop. Raise spl to previous level (which would be IPL_SCHED) when exiting Idle loop. Never lower SPL anyplace else.
77 lines
2.9 KiB
C
77 lines
2.9 KiB
C
/* $NetBSD: pcb.h,v 1.16 2003/08/12 18:34:48 matt Exp $ */
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/*-
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* Copyright (C) 1995, 1996 Wolfgang Solfrank.
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* Copyright (C) 1995, 1996 TooLs GmbH.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by TooLs GmbH.
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* 4. The name of TooLs GmbH may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _POWERPC_PCB_H_
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#define _POWERPC_PCB_H_
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#include <powerpc/reg.h>
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struct faultbuf {
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register_t fb_pc; /* PC */
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register_t fb_sp; /* R1 */
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register_t fb_r2; /* R2 (why?) */
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register_t fb_cr; /* CR */
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register_t fb_fixreg[19]; /* R13-R31 */
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};
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struct fpu {
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double fpr[32];
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double fpscr; /* FPSCR stored as double for easier access */
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};
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struct pcb {
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struct pmap *pcb_pm; /* pmap of our vmspace */
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register_t pcb_sp; /* saved SP */
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int pcb_flags;
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#define PCB_FPU 1 /* Process had FPU initialized */
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#define PCB_ALTIVEC 2 /* Process had AltiVec initialized */
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struct cpu_info * __volatile pcb_fpcpu; /* CPU with our FP state */
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struct cpu_info * __volatile pcb_veccpu;/* CPU with our VECTOR state */
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struct faultbuf *pcb_onfault; /* For use during copyin/copyout */
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vaddr_t pcb_kmapsr; /* where to map user segment in kernel */
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vaddr_t pcb_umapsr; /* the user segment mapped in kernel */
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struct fpu pcb_fpu; /* Floating point processor */
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struct vreg pcb_vr __attribute__((aligned(16)));
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};
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struct md_coredump {
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struct trapframe frame;
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struct fpu fpstate;
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struct vreg vstate;
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};
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#ifdef _KERNEL
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int setfault(struct faultbuf *);
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#endif
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#endif /* _POWERPC_PCB_H_ */
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