/* $OpenBSD: frame.h,v 1.19 2012/06/21 00:56:59 guenther Exp $ */ /* * Copyright (c) 1999-2004 Michael Shalayeff * 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 ``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 HIS RELATIVES 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 MIND, 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. */ #ifndef _MACHINE_FRAME_H_ #define _MACHINE_FRAME_H_ /* * Call frame definitions */ #define HPPA_FRAME_NARGS (12) #define HPPA_FRAME_MAXARGS (HPPA_FRAME_NARGS * 4) #define HPPA_FRAME_ARG(n) (-(32 + 4*((n) + 1))) #define HPPA_FRAME_CARG(n,sp) ((register_t *)((sp) + HPPA_FRAME_ARG(n))) #define HPPA_FRAME_SIZE (64) #define HPPA_FRAME_PSP (-4) #define HPPA_FRAME_EP (-8) #define HPPA_FRAME_CLUP (-12) #define HPPA_FRAME_SL (-16) #define HPPA_FRAME_CRP (-20) #define HPPA_FRAME_ERP (-24) #define HPPA_FRAME_ESR4 (-28) #define HPPA_FRAME_EDP (-32) /* * Macros to decode processor status word. */ #define HPPA_PC_PRIV_MASK 3 #define HPPA_PC_PRIV_KERN 0 #define HPPA_PC_PRIV_USER 3 #define USERMODE(pc) ((((register_t)pc) & HPPA_PC_PRIV_MASK) != HPPA_PC_PRIV_KERN) #define KERNMODE(pc) (((register_t)pc) & ~HPPA_PC_PRIV_MASK) #ifndef _LOCORE /* * the trapframe is divided into two parts: * one is saved while we are in the physical mode (beginning of the trap), * and should be kept as small as possible, since all the interrupts will * be lost during this phase, also it must be 64-bytes aligned, per * pa-risc stack conventions, and its dependencies in the code (; * the other part is filled out when we are already in the virtual mode, * are able to catch interrupts (they are kept pending) and perform * other trap activities (like tlb misses). */ struct trapframe { /* the `physical' part of the trapframe */ unsigned long tf_t1; /* r22 */ unsigned long tf_t2; /* r21 */ unsigned long tf_sp; /* r30 */ unsigned long tf_t3; /* r20 */ unsigned long tf_iisq_head; /* cr17 */ unsigned long tf_iisq_tail; unsigned long tf_iioq_head; /* cr18 */ unsigned long tf_iioq_tail; unsigned long tf_eiem; /* cr15 */ unsigned long tf_ipsw; /* cr22 */ unsigned long tf_sr3; unsigned long tf_pidr1; /* cr8 */ unsigned long tf_isr; /* cr20 */ unsigned long tf_ior; /* cr21 */ unsigned long tf_iir; /* cr19 */ unsigned long tf_flags; /* here starts the `virtual' part */ unsigned long tf_sar; /* cr11 */ unsigned long tf_r1; unsigned long tf_rp; /* r2 */ unsigned long tf_r3; /* frame pointer when -g */ unsigned long tf_r4; unsigned long tf_r5; unsigned long tf_r6; unsigned long tf_r7; unsigned long tf_r8; unsigned long tf_r9; unsigned long tf_r10; unsigned long tf_r11; unsigned long tf_r12; unsigned long tf_r13; unsigned long tf_r14; unsigned long tf_r15; unsigned long tf_r16; unsigned long tf_r17; unsigned long tf_r18; unsigned long tf_t4; /* r19 */ unsigned long tf_arg3; /* r23 */ unsigned long tf_arg2; /* r24 */ unsigned long tf_arg1; /* r25 */ unsigned long tf_arg0; /* r26 */ unsigned long tf_dp; /* r27 */ unsigned long tf_ret0; /* r28 */ unsigned long tf_ret1; /* r29 */ unsigned long tf_r31; unsigned long tf_sr0; unsigned long tf_sr1; unsigned long tf_sr2; unsigned long tf_sr4; unsigned long tf_sr5; unsigned long tf_sr6; unsigned long tf_sr7; unsigned long tf_pidr2; /* cr9 */ unsigned long tf_pidr3; /* cr12 */ unsigned long tf_pidr4; /* cr13 */ unsigned long tf_rctr; /* cr0 */ unsigned long tf_ccr; /* cr10 */ unsigned long tf_eirr; /* cr23 - DDB */ unsigned long tf_vtop; /* cr25 - DDB */ unsigned long tf_cr27; unsigned long tf_cr28; /* - DDB */ unsigned long tf_cr30; /* uaddr */ unsigned long tf_pad[3]; /* pad to 256 bytes */ }; #ifdef _KERNEL int setstack(struct trapframe *, u_long, register_t); #endif /* _KERNEL */ #endif /* !_LOCORE */ #endif /* !_MACHINE_FRAME_H_ */
