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mips: MIPSCPU model subclasses 

Register separate QOM types for each mips cpu model,
so it would be possible to reuse generic CPU creation
routines.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
[PMD: use internal.h, use void* to hold cpu_def in MIPSCPUClass,
 mark MIPSCPU abstract, address Eduardo Habkost review]
Tested-by: James Hogan <james.hogan@imgtec.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
This commit is contained in:
Igor Mammedov 2017-09-20 16:49:33 -03:00 committed by Yongbok Kim
parent df4dc10284
commit 41da212c9c
5 changed files with 117 additions and 64 deletions
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1
target/mips/cpu-qom.h
View File

@ -49,6 +49,7 @@ typedef struct MIPSCPUClass {
DeviceRealize parent_realize;
void (*parent_reset)(CPUState *cpu);
const struct mips_def_t *cpu_def;
} MIPSCPUClass;
typedef struct MIPSCPU MIPSCPU;

50
target/mips/cpu.c
View File

@ -146,14 +146,36 @@ static void mips_cpu_initfn(Object *obj)
CPUState *cs = CPU(obj);
MIPSCPU *cpu = MIPS_CPU(obj);
CPUMIPSState *env = &cpu->env;
MIPSCPUClass *mcc = MIPS_CPU_GET_CLASS(obj);
cs->env_ptr = env;
env->cpu_model = mcc->cpu_def;
if (tcg_enabled()) {
mips_tcg_init();
}
}
static char *mips_cpu_type_name(const char *cpu_model)
{
return g_strdup_printf("%s-" TYPE_MIPS_CPU, cpu_model);
}
static ObjectClass *mips_cpu_class_by_name(const char *cpu_model)
{
ObjectClass *oc;
char *typename;
if (cpu_model == NULL) {
return NULL;
}
typename = mips_cpu_type_name(cpu_model);
oc = object_class_by_name(typename);
g_free(typename);
return oc;
}
static void mips_cpu_class_init(ObjectClass *c, void *data)
{
MIPSCPUClass *mcc = MIPS_CPU_CLASS(c);
@ -166,6 +188,7 @@ static void mips_cpu_class_init(ObjectClass *c, void *data)
mcc->parent_reset = cc->reset;
cc->reset = mips_cpu_reset;
cc->class_by_name = mips_cpu_class_by_name;
cc->has_work = mips_cpu_has_work;
cc->do_interrupt = mips_cpu_do_interrupt;
cc->cpu_exec_interrupt = mips_cpu_exec_interrupt;
@ -193,14 +216,39 @@ static const TypeInfo mips_cpu_type_info = {
.parent = TYPE_CPU,
.instance_size = sizeof(MIPSCPU),
.instance_init = mips_cpu_initfn,
.abstract = false,
.abstract = true,
.class_size = sizeof(MIPSCPUClass),
.class_init = mips_cpu_class_init,
};
static void mips_cpu_cpudef_class_init(ObjectClass *oc, void *data)
{
MIPSCPUClass *mcc = MIPS_CPU_CLASS(oc);
mcc->cpu_def = data;
}
static void mips_register_cpudef_type(const struct mips_def_t *def)
{
char *typename = mips_cpu_type_name(def->name);
TypeInfo ti = {
.name = typename,
.parent = TYPE_MIPS_CPU,
.class_init = mips_cpu_cpudef_class_init,
.class_data = (void *)def,
};
type_register(&ti);
g_free(typename);
}
static void mips_cpu_register_types(void)
{
int i;
type_register_static(&mips_cpu_type_info);
for (i = 0; i < mips_defs_number; i++) {
mips_register_cpudef_type(&mips_defs[i]);
}
}
type_init(mips_cpu_register_types)

59
target/mips/internal.h
View File

@ -7,6 +7,65 @@
#ifndef MIPS_INTERNAL_H
#define MIPS_INTERNAL_H
/* MMU types, the first four entries have the same layout as the
CP0C0_MT field. */
enum mips_mmu_types {
MMU_TYPE_NONE,
MMU_TYPE_R4000,
MMU_TYPE_RESERVED,
MMU_TYPE_FMT,
MMU_TYPE_R3000,
MMU_TYPE_R6000,
MMU_TYPE_R8000
};
struct mips_def_t {
const char *name;
int32_t CP0_PRid;
int32_t CP0_Config0;
int32_t CP0_Config1;
int32_t CP0_Config2;
int32_t CP0_Config3;
int32_t CP0_Config4;
int32_t CP0_Config4_rw_bitmask;
int32_t CP0_Config5;
int32_t CP0_Config5_rw_bitmask;
int32_t CP0_Config6;
int32_t CP0_Config7;
target_ulong CP0_LLAddr_rw_bitmask;
int CP0_LLAddr_shift;
int32_t SYNCI_Step;
int32_t CCRes;
int32_t CP0_Status_rw_bitmask;
int32_t CP0_TCStatus_rw_bitmask;
int32_t CP0_SRSCtl;
int32_t CP1_fcr0;
int32_t CP1_fcr31_rw_bitmask;
int32_t CP1_fcr31;
int32_t MSAIR;
int32_t SEGBITS;
int32_t PABITS;
int32_t CP0_SRSConf0_rw_bitmask;
int32_t CP0_SRSConf0;
int32_t CP0_SRSConf1_rw_bitmask;
int32_t CP0_SRSConf1;
int32_t CP0_SRSConf2_rw_bitmask;
int32_t CP0_SRSConf2;
int32_t CP0_SRSConf3_rw_bitmask;
int32_t CP0_SRSConf3;
int32_t CP0_SRSConf4_rw_bitmask;
int32_t CP0_SRSConf4;
int32_t CP0_PageGrain_rw_bitmask;
int32_t CP0_PageGrain;
target_ulong CP0_EBaseWG_rw_bitmask;
int insn_flags;
enum mips_mmu_types mmu_type;
};
extern const struct mips_def_t mips_defs[];
extern const int mips_defs_number;
enum CPUMIPSMSADataFormat {
DF_BYTE = 0,
DF_HALF,

13
target/mips/translate.c
View File

@ -20525,16 +20525,15 @@ void cpu_mips_realize_env(CPUMIPSState *env)
MIPSCPU *cpu_mips_init(const char *cpu_model)
{
ObjectClass *oc;
MIPSCPU *cpu;
CPUMIPSState *env;
const mips_def_t *def;
def = cpu_mips_find_by_name(cpu_model);
if (!def)
oc = cpu_class_by_name(TYPE_MIPS_CPU, cpu_model);
if (oc == NULL) {
return NULL;
cpu = MIPS_CPU(object_new(TYPE_MIPS_CPU));
env = &cpu->env;
env->cpu_model = def;
}
cpu = MIPS_CPU(object_new(object_class_get_name(oc)));
object_property_set_bool(OBJECT(cpu), true, "realized", NULL);

58
target/mips/translate_init.c
View File

@ -51,64 +51,9 @@
#define MIPS_CONFIG5 \
((0 << CP0C5_M))
/* MMU types, the first four entries have the same layout as the
CP0C0_MT field. */
enum mips_mmu_types {
MMU_TYPE_NONE,
MMU_TYPE_R4000,
MMU_TYPE_RESERVED,
MMU_TYPE_FMT,
MMU_TYPE_R3000,
MMU_TYPE_R6000,
MMU_TYPE_R8000
};
struct mips_def_t {
const char *name;
int32_t CP0_PRid;
int32_t CP0_Config0;
int32_t CP0_Config1;
int32_t CP0_Config2;
int32_t CP0_Config3;
int32_t CP0_Config4;
int32_t CP0_Config4_rw_bitmask;
int32_t CP0_Config5;
int32_t CP0_Config5_rw_bitmask;
int32_t CP0_Config6;
int32_t CP0_Config7;
target_ulong CP0_LLAddr_rw_bitmask;
int CP0_LLAddr_shift;
int32_t SYNCI_Step;
int32_t CCRes;
int32_t CP0_Status_rw_bitmask;
int32_t CP0_TCStatus_rw_bitmask;
int32_t CP0_SRSCtl;
int32_t CP1_fcr0;
int32_t CP1_fcr31_rw_bitmask;
int32_t CP1_fcr31;
int32_t MSAIR;
int32_t SEGBITS;
int32_t PABITS;
int32_t CP0_SRSConf0_rw_bitmask;
int32_t CP0_SRSConf0;
int32_t CP0_SRSConf1_rw_bitmask;
int32_t CP0_SRSConf1;
int32_t CP0_SRSConf2_rw_bitmask;
int32_t CP0_SRSConf2;
int32_t CP0_SRSConf3_rw_bitmask;
int32_t CP0_SRSConf3;
int32_t CP0_SRSConf4_rw_bitmask;
int32_t CP0_SRSConf4;
int32_t CP0_PageGrain_rw_bitmask;
int32_t CP0_PageGrain;
target_ulong CP0_EBaseWG_rw_bitmask;
int insn_flags;
enum mips_mmu_types mmu_type;
};
/*****************************************************************************/
/* MIPS CPU definitions */
static const mips_def_t mips_defs[] =
const mips_def_t mips_defs[] =
{
{
.name = "4Kc",
@ -808,6 +753,7 @@ static const mips_def_t mips_defs[] =
#endif
};
const int mips_defs_number = ARRAY_SIZE(mips_defs);
static const mips_def_t *cpu_mips_find_by_name (const char *name)
{