1 /* $NetBSD: frame.h,v 1.12 2011/01/22 19:35:48 skrll Exp $ */ 2 3 /* $OpenBSD: frame.h,v 1.11 1999/11/25 18:28:06 mickey Exp $ */ 4 5 /* 6 * Copyright (c) 1999-2004 Michael Shalayeff 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT, 22 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 24 * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 26 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 27 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 28 * THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 32 #ifndef _HPPA_FRAME_H_ 33 #define _HPPA_FRAME_H_ 34 35 /* 36 * Call frame definitions 37 */ 38 #define HPPA_FRAME_NARGS (12) 39 #define HPPA_FRAME_MAXARGS (HPPA_FRAME_NARGS * 4) 40 #define HPPA_FRAME_ARG(n) (-(32 + 4*((n) + 1))) 41 #define HPPA_FRAME_CARG(n,sp) ((register_t *)((sp) + HPPA_FRAME_ARG(n))) 42 #define HPPA_FRAME_SIZE (64) 43 #define HPPA_FRAME_PSP (-4) 44 #define HPPA_FRAME_EP (-8) 45 #define HPPA_FRAME_CLUP (-12) 46 #define HPPA_FRAME_SL (-16) 47 #define HPPA_FRAME_CRP (-20) 48 #define HPPA_FRAME_ERP (-24) 49 #define HPPA_FRAME_ESR4 (-28) 50 #define HPPA_FRAME_EDP (-32) 51 #define HPPA_FRAME_ROUND(x) \ 52 ((((uintptr_t)x) + HPPA_FRAME_SIZE - 1) & ~(HPPA_FRAME_SIZE - 1)) 53 54 /* 55 * Macros to decode processor status word. 56 */ 57 #define HPPA_PC_PRIV_MASK 3 58 #define HPPA_PC_PRIV_KERN 0 59 #define HPPA_PC_PRIV_USER 3 60 #define USERMODE(pc) ((((register_t)pc) & HPPA_PC_PRIV_MASK) != HPPA_PC_PRIV_KERN) 61 #define KERNMODE(pc) (((register_t)pc) & ~HPPA_PC_PRIV_MASK) 62 63 #ifndef __ASSEMBLER__ 64 /* 65 * the trapframe is divided into two parts: 66 * one is saved while we are in the physical mode (beginning of the trap), 67 * and should be kept as small as possible, since all the interrupts will 68 * be lost during this phase, also it must be 64-bytes aligned, per 69 * pa-risc stack conventions, and its dependencies in the code (; 70 * the other part is filled out when we are already in the virtual mode, 71 * are able to catch interrupts (they are kept pending) and perform 72 * other trap activities (like tlb misses). 73 */ 74 struct trapframe { 75 /* the `physical' part of the trapframe */ 76 u_int tf_t1; /* r22 */ 77 u_int tf_t2; /* r21 */ 78 u_int tf_sp; /* r30 */ 79 u_int tf_t3; /* r20 */ 80 u_int tf_iisq_head; /* cr17 */ 81 u_int tf_iisq_tail; 82 u_int tf_iioq_head; /* cr18 */ 83 u_int tf_iioq_tail; 84 u_int tf_eiem; /* cr15 */ 85 u_int tf_ipsw; /* cr22 */ 86 u_int tf_sr3; 87 u_int tf_pidr1; /* cr8 */ 88 u_int tf_isr; /* cr20 */ 89 u_int tf_ior; /* cr21 */ 90 u_int tf_iir; /* cr19 */ 91 u_int tf_flags; 92 93 /* here starts the `virtual' part */ 94 u_int tf_sar; /* cr11 */ 95 u_int tf_r1; 96 u_int tf_rp; /* r2 */ 97 u_int tf_r3; /* frame pointer when -g */ 98 u_int tf_r4; 99 u_int tf_r5; 100 u_int tf_r6; 101 u_int tf_r7; 102 u_int tf_r8; 103 u_int tf_r9; 104 u_int tf_r10; 105 u_int tf_r11; 106 u_int tf_r12; 107 u_int tf_r13; 108 u_int tf_r14; 109 u_int tf_r15; 110 u_int tf_r16; 111 u_int tf_r17; 112 u_int tf_r18; 113 u_int tf_t4; /* r19 */ 114 u_int tf_arg3; /* r23 */ 115 u_int tf_arg2; /* r24 */ 116 u_int tf_arg1; /* r25 */ 117 u_int tf_arg0; /* r26 */ 118 u_int tf_dp; /* r27 */ 119 u_int tf_ret0; /* r28 */ 120 u_int tf_ret1; /* r29 */ 121 u_int tf_r31; 122 u_int tf_sr0; 123 u_int tf_sr1; 124 u_int tf_sr2; 125 u_int tf_sr4; 126 u_int tf_sr5; 127 u_int tf_sr6; 128 u_int tf_sr7; 129 u_int tf_pidr2; /* cr9 */ 130 u_int tf_pidr3; /* cr12 */ 131 u_int tf_pidr4; /* cr13 */ 132 u_int tf_rctr; /* cr0 */ 133 u_int tf_ccr; /* cr10 */ 134 u_int tf_eirr; /* cr23 - DDB */ 135 u_int tf_cr24; /* cr24 - DDB */ 136 u_int tf_vtop; /* cr25 - DDB */ 137 u_int tf_cr27; /* - DDB */ 138 u_int tf_cr28; /* - DDB */ 139 u_int tf_cr30; /* fpregs */ 140 141 u_int tf_pad[2]; /* pad to 256 bytes */ 142 }; 143 144 #endif /* !__ASSEMBLER__ */ 145 146 #endif /* !_HPPA_FRAME_H_ */ 147