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
46 DB_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
80 DB_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
93 int
94 fill_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
105 int
106 fill_fpregs(struct thread *td, struct fpreg *regs)
107 {
108 bzero(regs, sizeof(*regs));
109 return (0);
110 }
111
112 int
113 set_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
126 int
127 set_fpregs(struct thread *td, struct fpreg *regs)
128 {
129 return (0);
130 }
131
132 int
133 fill_dbregs(struct thread *td, struct dbreg *regs)
134 {
135
136 bzero(regs, sizeof(*regs));
137 return (0);
138 }
139
140 int
141 set_dbregs(struct thread *td, struct dbreg *regs)
142 {
143 return (0);
144 }
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