1/*
2 * HNDRTE arm trap handling.
3 *
4 * Copyright (C) 2015, Broadcom Corporation. All Rights Reserved.
5 *
6 * Permission to use, copy, modify, and/or distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
13 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
15 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
16 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 *
18 * $Id: hndrte_armtrap.h 261365 2011-05-24 20:42:23Z $
19 */
20
21#ifndef	_hndrte_armtrap_h
22#define	_hndrte_armtrap_h
23
24
25/* ARM trap handling */
26
27/* Trap types defined by ARM (see arminc.h) */
28
29/* Trap locations in lo memory */
30#define	TRAP_STRIDE	4
31#define FIRST_TRAP	TR_RST
32#define LAST_TRAP	(TR_FIQ * TRAP_STRIDE)
33
34#if defined(__ARM_ARCH_4T__)
35#define	MAX_TRAP_TYPE	(TR_FIQ + 1)
36#elif defined(__ARM_ARCH_7M__)
37#define	MAX_TRAP_TYPE	(TR_ISR + ARMCM3_NUMINTS)
38#endif	/* __ARM_ARCH_7M__ */
39
40/* The trap structure is defined here as offsets for assembly */
41#define	TR_TYPE		0x00
42#define	TR_EPC		0x04
43#define	TR_CPSR		0x08
44#define	TR_SPSR		0x0c
45#define	TR_REGS		0x10
46#define	TR_REG(n)	(TR_REGS + (n) * 4)
47#define	TR_SP		TR_REG(13)
48#define	TR_LR		TR_REG(14)
49#define	TR_PC		TR_REG(15)
50
51#define	TRAP_T_SIZE	80
52
53#ifndef	_LANGUAGE_ASSEMBLY
54
55#include <typedefs.h>
56
57typedef struct _trap_struct {
58	uint32		type;
59	uint32		epc;
60	uint32		cpsr;
61	uint32		spsr;
62	uint32		r0;	/* a1 */
63	uint32		r1;	/* a2 */
64	uint32		r2;	/* a3 */
65	uint32		r3;	/* a4 */
66	uint32		r4;	/* v1 */
67	uint32		r5;	/* v2 */
68	uint32		r6;	/* v3 */
69	uint32		r7;	/* v4 */
70	uint32		r8;	/* v5 */
71	uint32		r9;	/* sb/v6 */
72	uint32		r10;	/* sl/v7 */
73	uint32		r11;	/* fp/v8 */
74	uint32		r12;	/* ip */
75	uint32		r13;	/* sp */
76	uint32		r14;	/* lr */
77	uint32		pc;	/* r15 */
78} trap_t;
79
80#endif	/* !_LANGUAGE_ASSEMBLY */
81
82#endif	/* _hndrte_armtrap_h */
83