Annotation of sys/arch/hppa/include/frame.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: frame.h,v 1.16 2004/04/07 18:24:19 mickey Exp $ */
2:
3: /*
4: * Copyright (c) 1999-2004 Michael Shalayeff
5: * All rights reserved.
6: *
7: * Redistribution and use in source and binary forms, with or without
8: * modification, are permitted provided that the following conditions
9: * are met:
10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: * 2. Redistributions in binary form must reproduce the above copyright
13: * notice, this list of conditions and the following disclaimer in the
14: * documentation and/or other materials provided with the distribution.
15: *
16: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19: * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
20: * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21: * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22: * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
24: * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
25: * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
26: * THE POSSIBILITY OF SUCH DAMAGE.
27: */
28:
29:
30: #ifndef _MACHINE_FRAME_H_
31: #define _MACHINE_FRAME_H_
32:
33: /*
34: * Call frame definitions
35: */
36: #define HPPA_FRAME_NARGS (12)
37: #define HPPA_FRAME_MAXARGS (HPPA_FRAME_NARGS * 4)
38: #define HPPA_FRAME_ARG(n) (-(32 + 4*((n) + 1)))
39: #define HPPA_FRAME_CARG(n,sp) ((register_t *)((sp) + HPPA_FRAME_ARG(n)))
40: #define HPPA_FRAME_SIZE (64)
41: #define HPPA_FRAME_PSP (-4)
42: #define HPPA_FRAME_EP (-8)
43: #define HPPA_FRAME_CLUP (-12)
44: #define HPPA_FRAME_SL (-16)
45: #define HPPA_FRAME_CRP (-20)
46: #define HPPA_FRAME_ERP (-24)
47: #define HPPA_FRAME_ESR4 (-28)
48: #define HPPA_FRAME_EDP (-32)
49:
50: /*
51: * Macros to decode processor status word.
52: */
53: #define HPPA_PC_PRIV_MASK 3
54: #define HPPA_PC_PRIV_KERN 0
55: #define HPPA_PC_PRIV_USER 3
56: #define USERMODE(pc) ((((register_t)pc) & HPPA_PC_PRIV_MASK) != HPPA_PC_PRIV_KERN)
57: #define KERNMODE(pc) (((register_t)pc) & ~HPPA_PC_PRIV_MASK)
58:
59: #ifndef _LOCORE
60: /*
61: * the trapframe is divided into two parts:
62: * one is saved while we are in the physical mode (beginning of the trap),
63: * and should be kept as small as possible, since all the interrupts will
64: * be lost during this phase, also it must be 64-bytes aligned, per
65: * pa-risc stack conventions, and its dependencies in the code (;
66: * the other part is filled out when we are already in the virtual mode,
67: * are able to catch interrupts (they are kept pending) and perform
68: * other trap activities (like tlb misses).
69: */
70: struct trapframe {
71: /* the `physical' part of the trapframe */
72: unsigned tf_t1; /* r22 */
73: unsigned tf_t2; /* r21 */
74: unsigned tf_sp; /* r30 */
75: unsigned tf_t3; /* r20 */
76: unsigned tf_iisq_head; /* cr17 */
77: unsigned tf_iisq_tail;
78: unsigned tf_iioq_head; /* cr18 */
79: unsigned tf_iioq_tail;
80: unsigned tf_eiem; /* cr15 */
81: unsigned tf_ipsw; /* cr22 */
82: unsigned tf_sr3;
83: unsigned tf_pidr1; /* cr8 */
84: unsigned tf_isr; /* cr20 */
85: unsigned tf_ior; /* cr21 */
86: unsigned tf_iir; /* cr19 */
87: unsigned tf_flags;
88:
89: /* here starts the `virtual' part */
90: unsigned tf_sar; /* cr11 */
91: unsigned tf_r1;
92: unsigned tf_rp; /* r2 */
93: unsigned tf_r3; /* frame pointer when -g */
94: unsigned tf_r4;
95: unsigned tf_r5;
96: unsigned tf_r6;
97: unsigned tf_r7;
98: unsigned tf_r8;
99: unsigned tf_r9;
100: unsigned tf_r10;
101: unsigned tf_r11;
102: unsigned tf_r12;
103: unsigned tf_r13;
104: unsigned tf_r14;
105: unsigned tf_r15;
106: unsigned tf_r16;
107: unsigned tf_r17;
108: unsigned tf_r18;
109: unsigned tf_t4; /* r19 */
110: unsigned tf_arg3; /* r23 */
111: unsigned tf_arg2; /* r24 */
112: unsigned tf_arg1; /* r25 */
113: unsigned tf_arg0; /* r26 */
114: unsigned tf_dp; /* r27 */
115: unsigned tf_ret0; /* r28 */
116: unsigned tf_ret1; /* r29 */
117: unsigned tf_r31;
118: unsigned tf_sr0;
119: unsigned tf_sr1;
120: unsigned tf_sr2;
121: unsigned tf_sr4;
122: unsigned tf_sr5;
123: unsigned tf_sr6;
124: unsigned tf_sr7;
125: unsigned tf_pidr2; /* cr9 */
126: unsigned tf_pidr3; /* cr12 */
127: unsigned tf_pidr4; /* cr13 */
128: unsigned tf_rctr; /* cr0 */
129: unsigned tf_ccr; /* cr10 */
130: unsigned tf_eirr; /* cr23 - DDB */
131: unsigned tf_vtop; /* cr25 - DDB */
132: unsigned tf_cr28; /* - DDB */
133: unsigned tf_cr30; /* uaddr */
134:
135: unsigned tf_pad[4]; /* pad to 256 bytes */
136: };
137: #endif /* !_LOCORE */
138:
139: #endif /* !_MACHINE_FRAME_H_ */
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