aboutsummaryrefslogtreecommitdiff
path: root/target-ppc/timebase_helper.c
blob: cafa2838996538e1c6bfb98a27ce667a1d3fea98 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
/*
 *  PowerPC emulation helpers for QEMU.
 *
 *  Copyright (c) 2003-2007 Jocelyn Mayer
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
 */
#include "cpu.h"
#include "exec/helper-proto.h"

/*****************************************************************************/
/* SPR accesses */

target_ulong helper_load_tbl(CPUPPCState *env)
{
    return (target_ulong)cpu_ppc_load_tbl(env);
}

target_ulong helper_load_tbu(CPUPPCState *env)
{
    return cpu_ppc_load_tbu(env);
}

target_ulong helper_load_atbl(CPUPPCState *env)
{
    return (target_ulong)cpu_ppc_load_atbl(env);
}

target_ulong helper_load_atbu(CPUPPCState *env)
{
    return cpu_ppc_load_atbu(env);
}

#if defined(TARGET_PPC64) && !defined(CONFIG_USER_ONLY)
target_ulong helper_load_purr(CPUPPCState *env)
{
    return (target_ulong)cpu_ppc_load_purr(env);
}
#endif

target_ulong helper_load_601_rtcl(CPUPPCState *env)
{
    return cpu_ppc601_load_rtcl(env);
}

target_ulong helper_load_601_rtcu(CPUPPCState *env)
{
    return cpu_ppc601_load_rtcu(env);
}

#if !defined(CONFIG_USER_ONLY)
void helper_store_tbl(CPUPPCState *env, target_ulong val)
{
    cpu_ppc_store_tbl(env, val);
}

void helper_store_tbu(CPUPPCState *env, target_ulong val)
{
    cpu_ppc_store_tbu(env, val);
}

void helper_store_atbl(CPUPPCState *env, target_ulong val)
{
    cpu_ppc_store_atbl(env, val);
}

void helper_store_atbu(CPUPPCState *env, target_ulong val)
{
    cpu_ppc_store_atbu(env, val);
}

void helper_store_601_rtcl(CPUPPCState *env, target_ulong val)
{
    cpu_ppc601_store_rtcl(env, val);
}

void helper_store_601_rtcu(CPUPPCState *env, target_ulong val)
{
    cpu_ppc601_store_rtcu(env, val);
}

target_ulong helper_load_decr(CPUPPCState *env)
{
    return cpu_ppc_load_decr(env);
}

void helper_store_decr(CPUPPCState *env, target_ulong val)
{
    cpu_ppc_store_decr(env, val);
}

target_ulong helper_load_40x_pit(CPUPPCState *env)
{
    return load_40x_pit(env);
}

void helper_store_40x_pit(CPUPPCState *env, target_ulong val)
{
    store_40x_pit(env, val);
}

void helper_store_booke_tcr(CPUPPCState *env, target_ulong val)
{
    store_booke_tcr(env, val);
}

void helper_store_booke_tsr(CPUPPCState *env, target_ulong val)
{
    store_booke_tsr(env, val);
}
#endif

/*****************************************************************************/
/* Embedded PowerPC specific helpers */

/* XXX: to be improved to check access rights when in user-mode */
target_ulong helper_load_dcr(CPUPPCState *env, target_ulong dcrn)
{
    uint32_t val = 0;

    if (unlikely(env->dcr_env == NULL)) {
        qemu_log_mask(LOG_GUEST_ERROR, "No DCR environment\n");
        helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM,
                                   POWERPC_EXCP_INVAL |
                                   POWERPC_EXCP_INVAL_INVAL);
    } else if (unlikely(ppc_dcr_read(env->dcr_env,
                                     (uint32_t)dcrn, &val) != 0)) {
        qemu_log_mask(LOG_GUEST_ERROR, "DCR read error %d %03x\n",
                      (uint32_t)dcrn, (uint32_t)dcrn);
        helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM,
                                   POWERPC_EXCP_INVAL | POWERPC_EXCP_PRIV_REG);
    }
    return val;
}

void helper_store_dcr(CPUPPCState *env, target_ulong dcrn, target_ulong val)
{
    if (unlikely(env->dcr_env == NULL)) {
        qemu_log_mask(LOG_GUEST_ERROR, "No DCR environment\n");
        helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM,
                                   POWERPC_EXCP_INVAL |
                                   POWERPC_EXCP_INVAL_INVAL);
    } else if (unlikely(ppc_dcr_write(env->dcr_env, (uint32_t)dcrn,
                                      (uint32_t)val) != 0)) {
        qemu_log_mask(LOG_GUEST_ERROR, "DCR write error %d %03x\n",
                      (uint32_t)dcrn, (uint32_t)dcrn);
        helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM,
                                   POWERPC_EXCP_INVAL | POWERPC_EXCP_PRIV_REG);
    }
}