1/*	$NetBSD: arm32_machdep.c,v 1.44 2004/03/24 15:34:47 atatat Exp $	*/
2
3/*-
4 * Copyright (c) 2004 Olivier Houchard
5 * Copyright (c) 1994-1998 Mark Brinicombe.
6 * Copyright (c) 1994 Brini.
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 AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31#include "opt_ddb.h"
32
33#include <sys/cdefs.h>
34__FBSDID("$FreeBSD$");
35
36#include <sys/param.h>
37#include <sys/proc.h>
38#include <sys/systm.h>
39
40#include <machine/cpu.h>
41#include <machine/reg.h>
42
43#ifdef DDB
44#include <ddb/ddb.h>
45
46DB_SHOW_COMMAND(cp15, db_show_cp15)
47{
48	u_int reg;
49
50	reg = cp15_midr_get();
51	db_printf("Cpu ID: 0x%08x\n", reg);
52	reg = cp15_ctr_get();
53	db_printf("Current Cache Lvl ID: 0x%08x\n",reg);
54
55	reg = cp15_sctlr_get();
56	db_printf("Ctrl: 0x%08x\n",reg);
57	reg = cp15_actlr_get();
58	db_printf("Aux Ctrl: 0x%08x\n",reg);
59
60	reg = cp15_id_pfr0_get();
61	db_printf("Processor Feat 0: 0x%08x\n", reg);
62	reg = cp15_id_pfr1_get();
63	db_printf("Processor Feat 1: 0x%08x\n", reg);
64	reg = cp15_id_dfr0_get();
65	db_printf("Debug Feat 0: 0x%08x\n", reg);
66	reg = cp15_id_afr0_get();
67	db_printf("Auxiliary Feat 0: 0x%08x\n", reg);
68	reg = cp15_id_mmfr0_get();
69	db_printf("Memory Model Feat 0: 0x%08x\n", reg);
70	reg = cp15_id_mmfr1_get();
71	db_printf("Memory Model Feat 1: 0x%08x\n", reg);
72	reg = cp15_id_mmfr2_get();
73	db_printf("Memory Model Feat 2: 0x%08x\n", reg);
74	reg = cp15_id_mmfr3_get();
75	db_printf("Memory Model Feat 3: 0x%08x\n", reg);
76	reg = cp15_ttbr_get();
77	db_printf("TTB0: 0x%08x\n", reg);
78}
79
80DB_SHOW_COMMAND(vtop, db_show_vtop)
81{
82	u_int reg;
83
84	if (have_addr) {
85		cp15_ats1cpr_set(addr);
86		reg = cp15_par_get();
87		db_printf("Physical address reg: 0x%08x\n",reg);
88	} else
89		db_printf("show vtop <virt_addr>\n");
90}
91#endif /* DDB */
92
93int
94fill_regs(struct thread *td, struct reg *regs)
95{
96	struct trapframe *tf = td->td_frame;
97	bcopy(&tf->tf_r0, regs->r, sizeof(regs->r));
98	regs->r_sp = tf->tf_usr_sp;
99	regs->r_lr = tf->tf_usr_lr;
100	regs->r_pc = tf->tf_pc;
101	regs->r_cpsr = tf->tf_spsr;
102	return (0);
103}
104
105int
106fill_fpregs(struct thread *td, struct fpreg *regs)
107{
108	bzero(regs, sizeof(*regs));
109	return (0);
110}
111
112int
113set_regs(struct thread *td, struct reg *regs)
114{
115	struct trapframe *tf = td->td_frame;
116
117	bcopy(regs->r, &tf->tf_r0, sizeof(regs->r));
118	tf->tf_usr_sp = regs->r_sp;
119	tf->tf_usr_lr = regs->r_lr;
120	tf->tf_pc = regs->r_pc;
121	tf->tf_spsr &=  ~PSR_FLAGS;
122	tf->tf_spsr |= regs->r_cpsr & PSR_FLAGS;
123	return (0);
124}
125
126int
127set_fpregs(struct thread *td, struct fpreg *regs)
128{
129	return (0);
130}
131
132int
133fill_dbregs(struct thread *td, struct dbreg *regs)
134{
135
136	bzero(regs, sizeof(*regs));
137	return (0);
138}
139
140int
141set_dbregs(struct thread *td, struct dbreg *regs)
142{
143	return (0);
144}
145