These changes are the raw update to qemu-2.6.
[kvmfornfv.git] / qemu / target-ppc / timebase_helper.c
1 /*
2  *  PowerPC emulation helpers for QEMU.
3  *
4  *  Copyright (c) 2003-2007 Jocelyn Mayer
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2 of the License, or (at your option) any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
18  */
19 #include "qemu/osdep.h"
20 #include "cpu.h"
21 #include "exec/helper-proto.h"
22
23 /*****************************************************************************/
24 /* SPR accesses */
25
26 target_ulong helper_load_tbl(CPUPPCState *env)
27 {
28     return (target_ulong)cpu_ppc_load_tbl(env);
29 }
30
31 target_ulong helper_load_tbu(CPUPPCState *env)
32 {
33     return cpu_ppc_load_tbu(env);
34 }
35
36 target_ulong helper_load_atbl(CPUPPCState *env)
37 {
38     return (target_ulong)cpu_ppc_load_atbl(env);
39 }
40
41 target_ulong helper_load_atbu(CPUPPCState *env)
42 {
43     return cpu_ppc_load_atbu(env);
44 }
45
46 #if defined(TARGET_PPC64) && !defined(CONFIG_USER_ONLY)
47 target_ulong helper_load_purr(CPUPPCState *env)
48 {
49     return (target_ulong)cpu_ppc_load_purr(env);
50 }
51 #endif
52
53 target_ulong helper_load_601_rtcl(CPUPPCState *env)
54 {
55     return cpu_ppc601_load_rtcl(env);
56 }
57
58 target_ulong helper_load_601_rtcu(CPUPPCState *env)
59 {
60     return cpu_ppc601_load_rtcu(env);
61 }
62
63 #if !defined(CONFIG_USER_ONLY)
64 void helper_store_tbl(CPUPPCState *env, target_ulong val)
65 {
66     cpu_ppc_store_tbl(env, val);
67 }
68
69 void helper_store_tbu(CPUPPCState *env, target_ulong val)
70 {
71     cpu_ppc_store_tbu(env, val);
72 }
73
74 void helper_store_atbl(CPUPPCState *env, target_ulong val)
75 {
76     cpu_ppc_store_atbl(env, val);
77 }
78
79 void helper_store_atbu(CPUPPCState *env, target_ulong val)
80 {
81     cpu_ppc_store_atbu(env, val);
82 }
83
84 void helper_store_601_rtcl(CPUPPCState *env, target_ulong val)
85 {
86     cpu_ppc601_store_rtcl(env, val);
87 }
88
89 void helper_store_601_rtcu(CPUPPCState *env, target_ulong val)
90 {
91     cpu_ppc601_store_rtcu(env, val);
92 }
93
94 target_ulong helper_load_decr(CPUPPCState *env)
95 {
96     return cpu_ppc_load_decr(env);
97 }
98
99 void helper_store_decr(CPUPPCState *env, target_ulong val)
100 {
101     cpu_ppc_store_decr(env, val);
102 }
103
104 target_ulong helper_load_40x_pit(CPUPPCState *env)
105 {
106     return load_40x_pit(env);
107 }
108
109 void helper_store_40x_pit(CPUPPCState *env, target_ulong val)
110 {
111     store_40x_pit(env, val);
112 }
113
114 void helper_store_booke_tcr(CPUPPCState *env, target_ulong val)
115 {
116     store_booke_tcr(env, val);
117 }
118
119 void helper_store_booke_tsr(CPUPPCState *env, target_ulong val)
120 {
121     store_booke_tsr(env, val);
122 }
123 #endif
124
125 /*****************************************************************************/
126 /* Embedded PowerPC specific helpers */
127
128 /* XXX: to be improved to check access rights when in user-mode */
129 target_ulong helper_load_dcr(CPUPPCState *env, target_ulong dcrn)
130 {
131     uint32_t val = 0;
132
133     if (unlikely(env->dcr_env == NULL)) {
134         qemu_log_mask(LOG_GUEST_ERROR, "No DCR environment\n");
135         helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM,
136                                    POWERPC_EXCP_INVAL |
137                                    POWERPC_EXCP_INVAL_INVAL);
138     } else if (unlikely(ppc_dcr_read(env->dcr_env,
139                                      (uint32_t)dcrn, &val) != 0)) {
140         qemu_log_mask(LOG_GUEST_ERROR, "DCR read error %d %03x\n",
141                       (uint32_t)dcrn, (uint32_t)dcrn);
142         helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM,
143                                    POWERPC_EXCP_INVAL | POWERPC_EXCP_PRIV_REG);
144     }
145     return val;
146 }
147
148 void helper_store_dcr(CPUPPCState *env, target_ulong dcrn, target_ulong val)
149 {
150     if (unlikely(env->dcr_env == NULL)) {
151         qemu_log_mask(LOG_GUEST_ERROR, "No DCR environment\n");
152         helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM,
153                                    POWERPC_EXCP_INVAL |
154                                    POWERPC_EXCP_INVAL_INVAL);
155     } else if (unlikely(ppc_dcr_write(env->dcr_env, (uint32_t)dcrn,
156                                       (uint32_t)val) != 0)) {
157         qemu_log_mask(LOG_GUEST_ERROR, "DCR write error %d %03x\n",
158                       (uint32_t)dcrn, (uint32_t)dcrn);
159         helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM,
160                                    POWERPC_EXCP_INVAL | POWERPC_EXCP_PRIV_REG);
161     }
162 }