4 * Copyright (c) 2007 Jocelyn Mayer
5 * Copyright (c) 2012 SUSE LINUX Products GmbH
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, see
19 * <http://www.gnu.org/licenses/lgpl-2.1.html>
22 #include "qemu/osdep.h"
23 #include "qapi/error.h"
25 #include "qemu-common.h"
26 #include "exec/exec-all.h"
29 static void alpha_cpu_set_pc(CPUState
*cs
, vaddr value
)
31 AlphaCPU
*cpu
= ALPHA_CPU(cs
);
36 static bool alpha_cpu_has_work(CPUState
*cs
)
38 /* Here we are checking to see if the CPU should wake up from HALT.
39 We will have gotten into this state only for WTINT from PALmode. */
40 /* ??? I'm not sure how the IPL state works with WTINT to keep a CPU
41 asleep even if (some) interrupts have been asserted. For now,
42 assume that if a CPU really wants to stay asleep, it will mask
43 interrupts at the chipset level, which will prevent these bits
44 from being set in the first place. */
45 return cs
->interrupt_request
& (CPU_INTERRUPT_HARD
48 | CPU_INTERRUPT_MCHK
);
51 static void alpha_cpu_disas_set_info(CPUState
*cpu
, disassemble_info
*info
)
53 info
->mach
= bfd_mach_alpha_ev6
;
54 info
->print_insn
= print_insn_alpha
;
57 static void alpha_cpu_realizefn(DeviceState
*dev
, Error
**errp
)
59 CPUState
*cs
= CPU(dev
);
60 AlphaCPUClass
*acc
= ALPHA_CPU_GET_CLASS(dev
);
61 Error
*local_err
= NULL
;
63 cpu_exec_realizefn(cs
, &local_err
);
64 if (local_err
!= NULL
) {
65 error_propagate(errp
, local_err
);
71 acc
->parent_realize(dev
, errp
);
74 /* Sort alphabetically by type name. */
75 static gint
alpha_cpu_list_compare(gconstpointer a
, gconstpointer b
)
77 ObjectClass
*class_a
= (ObjectClass
*)a
;
78 ObjectClass
*class_b
= (ObjectClass
*)b
;
79 const char *name_a
, *name_b
;
81 name_a
= object_class_get_name(class_a
);
82 name_b
= object_class_get_name(class_b
);
83 return strcmp(name_a
, name_b
);
86 static void alpha_cpu_list_entry(gpointer data
, gpointer user_data
)
88 ObjectClass
*oc
= data
;
89 CPUListState
*s
= user_data
;
91 (*s
->cpu_fprintf
)(s
->file
, " %s\n",
92 object_class_get_name(oc
));
95 void alpha_cpu_list(FILE *f
, fprintf_function cpu_fprintf
)
99 .cpu_fprintf
= cpu_fprintf
,
103 list
= object_class_get_list(TYPE_ALPHA_CPU
, false);
104 list
= g_slist_sort(list
, alpha_cpu_list_compare
);
105 (*cpu_fprintf
)(f
, "Available CPUs:\n");
106 g_slist_foreach(list
, alpha_cpu_list_entry
, &s
);
112 #define TYPE(model) model "-" TYPE_ALPHA_CPU
114 typedef struct AlphaCPUAlias
{
116 const char *typename
;
119 static const AlphaCPUAlias alpha_cpu_aliases
[] = {
120 { "21064", TYPE("ev4") },
121 { "21164", TYPE("ev5") },
122 { "21164a", TYPE("ev56") },
123 { "21164pc", TYPE("pca56") },
124 { "21264", TYPE("ev6") },
125 { "21264a", TYPE("ev67") },
128 static ObjectClass
*alpha_cpu_class_by_name(const char *cpu_model
)
130 ObjectClass
*oc
= NULL
;
134 if (cpu_model
== NULL
) {
138 oc
= object_class_by_name(cpu_model
);
139 if (oc
!= NULL
&& object_class_dynamic_cast(oc
, TYPE_ALPHA_CPU
) != NULL
&&
140 !object_class_is_abstract(oc
)) {
144 for (i
= 0; i
< ARRAY_SIZE(alpha_cpu_aliases
); i
++) {
145 if (strcmp(cpu_model
, alpha_cpu_aliases
[i
].alias
) == 0) {
146 oc
= object_class_by_name(alpha_cpu_aliases
[i
].typename
);
147 assert(oc
!= NULL
&& !object_class_is_abstract(oc
));
152 typename
= g_strdup_printf("%s-" TYPE_ALPHA_CPU
, cpu_model
);
153 oc
= object_class_by_name(typename
);
155 if (oc
!= NULL
&& object_class_is_abstract(oc
)) {
161 AlphaCPU
*cpu_alpha_init(const char *cpu_model
)
164 ObjectClass
*cpu_class
;
166 cpu_class
= alpha_cpu_class_by_name(cpu_model
);
167 if (cpu_class
== NULL
) {
168 /* Default to ev67; no reason not to emulate insns by default. */
169 cpu_class
= object_class_by_name(TYPE("ev67"));
171 cpu
= ALPHA_CPU(object_new(object_class_get_name(cpu_class
)));
173 object_property_set_bool(OBJECT(cpu
), true, "realized", NULL
);
178 static void ev4_cpu_initfn(Object
*obj
)
180 AlphaCPU
*cpu
= ALPHA_CPU(obj
);
181 CPUAlphaState
*env
= &cpu
->env
;
183 env
->implver
= IMPLVER_2106x
;
186 static const TypeInfo ev4_cpu_type_info
= {
188 .parent
= TYPE_ALPHA_CPU
,
189 .instance_init
= ev4_cpu_initfn
,
192 static void ev5_cpu_initfn(Object
*obj
)
194 AlphaCPU
*cpu
= ALPHA_CPU(obj
);
195 CPUAlphaState
*env
= &cpu
->env
;
197 env
->implver
= IMPLVER_21164
;
200 static const TypeInfo ev5_cpu_type_info
= {
202 .parent
= TYPE_ALPHA_CPU
,
203 .instance_init
= ev5_cpu_initfn
,
206 static void ev56_cpu_initfn(Object
*obj
)
208 AlphaCPU
*cpu
= ALPHA_CPU(obj
);
209 CPUAlphaState
*env
= &cpu
->env
;
211 env
->amask
|= AMASK_BWX
;
214 static const TypeInfo ev56_cpu_type_info
= {
215 .name
= TYPE("ev56"),
216 .parent
= TYPE("ev5"),
217 .instance_init
= ev56_cpu_initfn
,
220 static void pca56_cpu_initfn(Object
*obj
)
222 AlphaCPU
*cpu
= ALPHA_CPU(obj
);
223 CPUAlphaState
*env
= &cpu
->env
;
225 env
->amask
|= AMASK_MVI
;
228 static const TypeInfo pca56_cpu_type_info
= {
229 .name
= TYPE("pca56"),
230 .parent
= TYPE("ev56"),
231 .instance_init
= pca56_cpu_initfn
,
234 static void ev6_cpu_initfn(Object
*obj
)
236 AlphaCPU
*cpu
= ALPHA_CPU(obj
);
237 CPUAlphaState
*env
= &cpu
->env
;
239 env
->implver
= IMPLVER_21264
;
240 env
->amask
= AMASK_BWX
| AMASK_FIX
| AMASK_MVI
| AMASK_TRAP
;
243 static const TypeInfo ev6_cpu_type_info
= {
245 .parent
= TYPE_ALPHA_CPU
,
246 .instance_init
= ev6_cpu_initfn
,
249 static void ev67_cpu_initfn(Object
*obj
)
251 AlphaCPU
*cpu
= ALPHA_CPU(obj
);
252 CPUAlphaState
*env
= &cpu
->env
;
254 env
->amask
|= AMASK_CIX
| AMASK_PREFETCH
;
257 static const TypeInfo ev67_cpu_type_info
= {
258 .name
= TYPE("ev67"),
259 .parent
= TYPE("ev6"),
260 .instance_init
= ev67_cpu_initfn
,
263 static const TypeInfo ev68_cpu_type_info
= {
264 .name
= TYPE("ev68"),
265 .parent
= TYPE("ev67"),
268 static void alpha_cpu_initfn(Object
*obj
)
270 CPUState
*cs
= CPU(obj
);
271 AlphaCPU
*cpu
= ALPHA_CPU(obj
);
272 CPUAlphaState
*env
= &cpu
->env
;
277 alpha_translate_init();
279 #if defined(CONFIG_USER_ONLY)
280 env
->ps
= PS_USER_MODE
;
281 cpu_alpha_store_fpcr(env
, (FPCR_INVD
| FPCR_DZED
| FPCR_OVFD
282 | FPCR_UNFD
| FPCR_INED
| FPCR_DNOD
289 static void alpha_cpu_class_init(ObjectClass
*oc
, void *data
)
291 DeviceClass
*dc
= DEVICE_CLASS(oc
);
292 CPUClass
*cc
= CPU_CLASS(oc
);
293 AlphaCPUClass
*acc
= ALPHA_CPU_CLASS(oc
);
295 acc
->parent_realize
= dc
->realize
;
296 dc
->realize
= alpha_cpu_realizefn
;
298 cc
->class_by_name
= alpha_cpu_class_by_name
;
299 cc
->has_work
= alpha_cpu_has_work
;
300 cc
->do_interrupt
= alpha_cpu_do_interrupt
;
301 cc
->cpu_exec_interrupt
= alpha_cpu_exec_interrupt
;
302 cc
->dump_state
= alpha_cpu_dump_state
;
303 cc
->set_pc
= alpha_cpu_set_pc
;
304 cc
->gdb_read_register
= alpha_cpu_gdb_read_register
;
305 cc
->gdb_write_register
= alpha_cpu_gdb_write_register
;
306 #ifdef CONFIG_USER_ONLY
307 cc
->handle_mmu_fault
= alpha_cpu_handle_mmu_fault
;
309 cc
->do_unassigned_access
= alpha_cpu_unassigned_access
;
310 cc
->do_unaligned_access
= alpha_cpu_do_unaligned_access
;
311 cc
->get_phys_page_debug
= alpha_cpu_get_phys_page_debug
;
312 dc
->vmsd
= &vmstate_alpha_cpu
;
314 cc
->disas_set_info
= alpha_cpu_disas_set_info
;
316 cc
->gdb_num_core_regs
= 67;
319 static const TypeInfo alpha_cpu_type_info
= {
320 .name
= TYPE_ALPHA_CPU
,
322 .instance_size
= sizeof(AlphaCPU
),
323 .instance_init
= alpha_cpu_initfn
,
325 .class_size
= sizeof(AlphaCPUClass
),
326 .class_init
= alpha_cpu_class_init
,
329 static void alpha_cpu_register_types(void)
331 type_register_static(&alpha_cpu_type_info
);
332 type_register_static(&ev4_cpu_type_info
);
333 type_register_static(&ev5_cpu_type_info
);
334 type_register_static(&ev56_cpu_type_info
);
335 type_register_static(&pca56_cpu_type_info
);
336 type_register_static(&ev6_cpu_type_info
);
337 type_register_static(&ev67_cpu_type_info
);
338 type_register_static(&ev68_cpu_type_info
);
341 type_init(alpha_cpu_register_types
)