/*- * SPDX-License-Identifier: BSD-4-Clause * * Copyright (C) 1995, 1996 Wolfgang Solfrank. * Copyright (C) 1995, 1996 TooLs GmbH. * 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by TooLs GmbH. * 4. The name of TooLs GmbH may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``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 TOOLS GMBH 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. * * $NetBSD: pcb.h,v 1.4 2000/06/04 11:57:17 tsubai Exp $ */ #ifndef _MACHINE_PCB_H_ #define _MACHINE_PCB_H_ #include <sys/endian.h> #include <machine/setjmp.h> #ifndef _STANDALONE struct pcb { register_t pcb_context[20]; /* non-volatile r12-r31 */ register_t pcb_cr; /* Condition register */ register_t pcb_sp; /* stack pointer */ register_t pcb_toc; /* toc pointer */ register_t pcb_lr; /* link register */ register_t pcb_dscr; /* dscr value */ register_t pcb_fscr; register_t pcb_tar; struct pmap *pcb_pm; /* pmap of our vmspace */ jmp_buf *pcb_onfault; /* For use during copyin/copyout */ int pcb_flags; #define PCB_FPU 0x1 /* Process uses FPU */ #define PCB_FPREGS 0x2 /* Process had FPU registers initialized */ #define PCB_VEC 0x4 /* Process uses Altivec */ #define PCB_VSX 0x8 /* Process had VSX initialized */ #define PCB_CDSCR 0x10 /* Process had Custom DSCR initialized */ #define PCB_HTM 0x20 /* Process had HTM initialized */ #define PCB_CFSCR 0x40 /* Process had FSCR updated */ #define PCB_KERN_FPU 0x80 /* Kernel is using FPU/Vector unit */ #define PCB_KERN_FPU_NOSAVE 0x100 /* FPU/Vec state not saved for kernel use */ #define PCB_VECREGS 0x200 /* Process had Altivec registers initialized */ struct fpu { union { #if _BYTE_ORDER == _BIG_ENDIAN double fpr; uint32_t vsr[4]; #else uint32_t vsr[4]; struct { double padding; double fpr; }; #endif } fpr[32]; double fpscr; /* FPSCR stored as double for easier access */ } pcb_fpu; /* Floating point processor */ unsigned int pcb_fpcpu; /* which CPU had our FPU stuff. */ struct vec { uint32_t vr[32][4]; uint32_t spare[2]; uint32_t vrsave; uint32_t vscr; /* aligned at vector element 3 */ } pcb_vec __aligned(16); /* Vector processor */ unsigned int pcb_veccpu; /* which CPU had our vector stuff. */ struct htm { uint64_t tfhar; uint64_t texasr; uint64_t tfiar; } pcb_htm; struct ebb { uint64_t ebbhr; uint64_t ebbrr; uint64_t bescr; } pcb_ebb; struct lmon { uint64_t lmrr; uint64_t lmser; } pcb_lm; union { struct { vm_offset_t usr_segm; /* Base address */ register_t usr_vsid; /* USER_SR segment */ } aim; struct { register_t dbcr0; } booke; } pcb_cpu; vm_offset_t pcb_lastill; /* Last illegal instruction */ }; #endif #ifdef _KERNEL struct trapframe; #ifndef curpcb extern struct pcb *curpcb; #endif extern struct pmap *curpm; extern struct proc *fpuproc; void makectx(struct trapframe *, struct pcb *); void savectx(struct pcb *) __returns_twice; #endif #endif /* _MACHINE_PCB_H_ */