diff options
Diffstat (limited to 'target/sparc/cpu.c')
| -rw-r--r-- | target/sparc/cpu.c | 391 |
1 files changed, 218 insertions, 173 deletions
diff --git a/target/sparc/cpu.c b/target/sparc/cpu.c index d606eb53f4..0806d699e6 100644 --- a/target/sparc/cpu.c +++ b/target/sparc/cpu.c @@ -22,11 +22,11 @@ #include "cpu.h" #include "qemu/error-report.h" #include "exec/exec-all.h" +#include "hw/qdev-properties.h" +#include "qapi/visitor.h" //#define DEBUG_FEATURES -static int cpu_sparc_find_by_name(sparc_def_t *cpu_def, const char *cpu_model); - /* CPUClass::reset() */ static void sparc_cpu_reset(CPUState *s) { @@ -68,7 +68,7 @@ static void sparc_cpu_reset(CPUState *s) env->lsu = 0; #else env->mmuregs[0] &= ~(MMU_E | MMU_NF); - env->mmuregs[0] |= env->def->mmu_bm; + env->mmuregs[0] |= env->def.mmu_bm; #endif env->pc = 0; env->npc = env->pc + 4; @@ -104,62 +104,94 @@ static void cpu_sparc_disas_set_info(CPUState *cpu, disassemble_info *info) #endif } -static void sparc_cpu_parse_features(CPUState *cs, char *features, - Error **errp); +static void +cpu_add_feat_as_prop(const char *typename, const char *name, const char *val) +{ + GlobalProperty *prop = g_new0(typeof(*prop), 1); + prop->driver = typename; + prop->property = g_strdup(name); + prop->value = g_strdup(val); + prop->errp = &error_fatal; + qdev_prop_register_global(prop); +} -static int cpu_sparc_register(SPARCCPU *cpu, const char *cpu_model) +/* Parse "+feature,-feature,feature=foo" CPU feature string */ +static void sparc_cpu_parse_features(const char *typename, char *features, + Error **errp) { - CPUSPARCState *env = &cpu->env; - char *s = g_strdup(cpu_model); - char *featurestr, *name = strtok(s, ","); - sparc_def_t def1, *def = &def1; - Error *err = NULL; + GList *l, *plus_features = NULL, *minus_features = NULL; + char *featurestr; /* Single 'key=value" string being parsed */ + static bool cpu_globals_initialized; - if (cpu_sparc_find_by_name(def, name) < 0) { - g_free(s); - return -1; + if (cpu_globals_initialized) { + return; } + cpu_globals_initialized = true; - env->def = g_memdup(def, sizeof(*def)); - - featurestr = strtok(NULL, ","); - sparc_cpu_parse_features(CPU(cpu), featurestr, &err); - g_free(s); - if (err) { - error_report_err(err); - return -1; + if (!features) { + return; } - env->version = def->iu_version; - env->fsr = def->fpu_version; - env->nwindows = def->nwindows; -#if !defined(TARGET_SPARC64) - env->mmuregs[0] |= def->mmu_version; - cpu_sparc_set_id(env, 0); - env->mxccregs[7] |= def->mxcc_version; -#else - env->mmu_version = def->mmu_version; - env->maxtl = def->maxtl; - env->version |= def->maxtl << 8; - env->version |= def->nwindows - 1; -#endif - return 0; -} + for (featurestr = strtok(features, ","); + featurestr; + featurestr = strtok(NULL, ",")) { + const char *name; + const char *val = NULL; + char *eq = NULL; -SPARCCPU *cpu_sparc_init(const char *cpu_model) -{ - SPARCCPU *cpu; - - cpu = SPARC_CPU(object_new(TYPE_SPARC_CPU)); + /* Compatibility syntax: */ + if (featurestr[0] == '+') { + plus_features = g_list_append(plus_features, + g_strdup(featurestr + 1)); + continue; + } else if (featurestr[0] == '-') { + minus_features = g_list_append(minus_features, + g_strdup(featurestr + 1)); + continue; + } - if (cpu_sparc_register(cpu, cpu_model) < 0) { - object_unref(OBJECT(cpu)); - return NULL; + eq = strchr(featurestr, '='); + name = featurestr; + if (eq) { + *eq++ = 0; + val = eq; + + /* + * Temporarily, only +feat/-feat will be supported + * for boolean properties until we remove the + * minus-overrides-plus semantics and just follow + * the order options appear on the command-line. + * + * TODO: warn if user is relying on minus-override-plus semantics + * TODO: remove minus-override-plus semantics after + * warning for a few releases + */ + if (!strcasecmp(val, "on") || + !strcasecmp(val, "off") || + !strcasecmp(val, "true") || + !strcasecmp(val, "false")) { + error_setg(errp, "Boolean properties in format %s=%s" + " are not supported", name, val); + return; + } + } else { + error_setg(errp, "Unsupported property format: %s", name); + return; + } + cpu_add_feat_as_prop(typename, name, val); } - object_property_set_bool(OBJECT(cpu), true, "realized", NULL); + for (l = plus_features; l; l = l->next) { + const char *name = l->data; + cpu_add_feat_as_prop(typename, name, "on"); + } + g_list_free_full(plus_features, g_free); - return cpu; + for (l = minus_features; l; l = l->next) { + const char *name = l->data; + cpu_add_feat_as_prop(typename, name, "off"); + } + g_list_free_full(minus_features, g_free); } void cpu_sparc_set_id(CPUSPARCState *env, unsigned int cpu) @@ -540,124 +572,6 @@ static void print_features(FILE *f, fprintf_function cpu_fprintf, } } -static void add_flagname_to_bitmaps(const char *flagname, uint32_t *features) -{ - unsigned int i; - - for (i = 0; i < ARRAY_SIZE(feature_name); i++) { - if (feature_name[i] && !strcmp(flagname, feature_name[i])) { - *features |= 1 << i; - return; - } - } - error_report("CPU feature %s not found", flagname); -} - -static int cpu_sparc_find_by_name(sparc_def_t *cpu_def, const char *name) -{ - unsigned int i; - const sparc_def_t *def = NULL; - - for (i = 0; i < ARRAY_SIZE(sparc_defs); i++) { - if (strcasecmp(name, sparc_defs[i].name) == 0) { - def = &sparc_defs[i]; - } - } - if (!def) { - return -1; - } - memcpy(cpu_def, def, sizeof(*def)); - return 0; -} - -static void sparc_cpu_parse_features(CPUState *cs, char *features, - Error **errp) -{ - SPARCCPU *cpu = SPARC_CPU(cs); - sparc_def_t *cpu_def = cpu->env.def; - char *featurestr; - uint32_t plus_features = 0; - uint32_t minus_features = 0; - uint64_t iu_version; - uint32_t fpu_version, mmu_version, nwindows; - - featurestr = features ? strtok(features, ",") : NULL; - while (featurestr) { - char *val; - - if (featurestr[0] == '+') { - add_flagname_to_bitmaps(featurestr + 1, &plus_features); - } else if (featurestr[0] == '-') { - add_flagname_to_bitmaps(featurestr + 1, &minus_features); - } else if ((val = strchr(featurestr, '='))) { - *val = 0; val++; - if (!strcmp(featurestr, "iu_version")) { - char *err; - - iu_version = strtoll(val, &err, 0); - if (!*val || *err) { - error_setg(errp, "bad numerical value %s", val); - return; - } - cpu_def->iu_version = iu_version; -#ifdef DEBUG_FEATURES - fprintf(stderr, "iu_version %" PRIx64 "\n", iu_version); -#endif - } else if (!strcmp(featurestr, "fpu_version")) { - char *err; - - fpu_version = strtol(val, &err, 0); - if (!*val || *err) { - error_setg(errp, "bad numerical value %s", val); - return; - } - cpu_def->fpu_version = fpu_version; -#ifdef DEBUG_FEATURES - fprintf(stderr, "fpu_version %x\n", fpu_version); -#endif - } else if (!strcmp(featurestr, "mmu_version")) { - char *err; - - mmu_version = strtol(val, &err, 0); - if (!*val || *err) { - error_setg(errp, "bad numerical value %s", val); - return; - } - cpu_def->mmu_version = mmu_version; -#ifdef DEBUG_FEATURES - fprintf(stderr, "mmu_version %x\n", mmu_version); -#endif - } else if (!strcmp(featurestr, "nwindows")) { - char *err; - - nwindows = strtol(val, &err, 0); - if (!*val || *err || nwindows > MAX_NWINDOWS || - nwindows < MIN_NWINDOWS) { - error_setg(errp, "bad numerical value %s", val); - return; - } - cpu_def->nwindows = nwindows; -#ifdef DEBUG_FEATURES - fprintf(stderr, "nwindows %d\n", nwindows); -#endif - } else { - error_setg(errp, "unrecognized feature %s", featurestr); - return; - } - } else { - error_setg(errp, "feature string `%s' not in format " - "(+feature|-feature|feature=xyz)", featurestr); - return; - } - featurestr = strtok(NULL, ","); - } - cpu_def->features |= plus_features; - cpu_def->features &= ~minus_features; -#ifdef DEBUG_FEATURES - print_features(stderr, fprintf, cpu_def->features, NULL); -#endif -} - void sparc_cpu_list(FILE *f, fprintf_function cpu_fprintf) { unsigned int i; @@ -796,20 +710,64 @@ static bool sparc_cpu_has_work(CPUState *cs) cpu_interrupts_enabled(env); } +static char *sparc_cpu_type_name(const char *cpu_model) +{ + char *name = g_strdup_printf("%s-" TYPE_SPARC_CPU, cpu_model); + char *s = name; + + /* SPARC cpu model names happen to have whitespaces, + * as type names shouldn't have spaces replace them with '-' + */ + while ((s = strchr(s, ' '))) { + *s = '-'; + } + + return name; +} + +static ObjectClass *sparc_cpu_class_by_name(const char *cpu_model) +{ + ObjectClass *oc; + char *typename; + + if (cpu_model == NULL) { + return NULL; + } + + typename = sparc_cpu_type_name(cpu_model); + oc = object_class_by_name(typename); + g_free(typename); + return oc; +} + static void sparc_cpu_realizefn(DeviceState *dev, Error **errp) { CPUState *cs = CPU(dev); SPARCCPUClass *scc = SPARC_CPU_GET_CLASS(dev); Error *local_err = NULL; -#if defined(CONFIG_USER_ONLY) SPARCCPU *cpu = SPARC_CPU(dev); CPUSPARCState *env = &cpu->env; - if ((env->def->features & CPU_FEATURE_FLOAT)) { - env->def->features |= CPU_FEATURE_FLOAT128; +#if defined(CONFIG_USER_ONLY) + if ((env->def.features & CPU_FEATURE_FLOAT)) { + env->def.features |= CPU_FEATURE_FLOAT128; } #endif + env->version = env->def.iu_version; + env->fsr = env->def.fpu_version; + env->nwindows = env->def.nwindows; +#if !defined(TARGET_SPARC64) + env->mmuregs[0] |= env->def.mmu_version; + cpu_sparc_set_id(env, 0); + env->mxccregs[7] |= env->def.mxcc_version; +#else + env->mmu_version = env->def.mmu_version; + env->maxtl = env->def.maxtl; + env->version |= env->def.maxtl << 8; + env->version |= env->def.nwindows - 1; +#endif + cpu_exec_realizefn(cs, &local_err); if (local_err != NULL) { error_propagate(errp, local_err); @@ -825,6 +783,7 @@ static void sparc_cpu_initfn(Object *obj) { CPUState *cs = CPU(obj); SPARCCPU *cpu = SPARC_CPU(obj); + SPARCCPUClass *scc = SPARC_CPU_GET_CLASS(obj); CPUSPARCState *env = &cpu->env; cs->env_ptr = env; @@ -832,16 +791,75 @@ static void sparc_cpu_initfn(Object *obj) if (tcg_enabled()) { gen_intermediate_code_init(env); } + + if (scc->cpu_def) { + env->def = *scc->cpu_def; + } } -static void sparc_cpu_uninitfn(Object *obj) +static void sparc_get_nwindows(Object *obj, Visitor *v, const char *name, + void *opaque, Error **errp) { SPARCCPU *cpu = SPARC_CPU(obj); - CPUSPARCState *env = &cpu->env; + int64_t value = cpu->env.def.nwindows; + + visit_type_int(v, name, &value, errp); +} + +static void sparc_set_nwindows(Object *obj, Visitor *v, const char *name, + void *opaque, Error **errp) +{ + const int64_t min = MIN_NWINDOWS; + const int64_t max = MAX_NWINDOWS; + SPARCCPU *cpu = SPARC_CPU(obj); + Error *err = NULL; + int64_t value; - g_free(env->def); + visit_type_int(v, name, &value, &err); + if (err) { + error_propagate(errp, err); + return; + } + + if (value < min || value > max) { + error_setg(errp, "Property %s.%s doesn't take value %" PRId64 + " (minimum: %" PRId64 ", maximum: %" PRId64 ")", + object_get_typename(obj), name ? name : "null", + value, min, max); + return; + } + cpu->env.def.nwindows = value; } +static PropertyInfo qdev_prop_nwindows = { + .name = "int", + .get = sparc_get_nwindows, + .set = sparc_set_nwindows, +}; + +static Property sparc_cpu_properties[] = { + DEFINE_PROP_BIT("float", SPARCCPU, env.def.features, 0, false), + DEFINE_PROP_BIT("float128", SPARCCPU, env.def.features, 1, false), + DEFINE_PROP_BIT("swap", SPARCCPU, env.def.features, 2, false), + DEFINE_PROP_BIT("mul", SPARCCPU, env.def.features, 3, false), + DEFINE_PROP_BIT("div", SPARCCPU, env.def.features, 4, false), + DEFINE_PROP_BIT("flush", SPARCCPU, env.def.features, 5, false), + DEFINE_PROP_BIT("fsqrt", SPARCCPU, env.def.features, 6, false), + DEFINE_PROP_BIT("fmul", SPARCCPU, env.def.features, 7, false), + DEFINE_PROP_BIT("vis1", SPARCCPU, env.def.features, 8, false), + DEFINE_PROP_BIT("vis2", SPARCCPU, env.def.features, 9, false), + DEFINE_PROP_BIT("fsmuld", SPARCCPU, env.def.features, 10, false), + DEFINE_PROP_BIT("hypv", SPARCCPU, env.def.features, 11, false), + DEFINE_PROP_BIT("cmt", SPARCCPU, env.def.features, 12, false), + DEFINE_PROP_BIT("gl", SPARCCPU, env.def.features, 13, false), + DEFINE_PROP_UNSIGNED("iu-version", SPARCCPU, env.def.iu_version, 0, + qdev_prop_uint64, target_ulong), + DEFINE_PROP_UINT32("fpu-version", SPARCCPU, env.def.fpu_version, 0), + DEFINE_PROP_UINT32("mmu-version", SPARCCPU, env.def.mmu_version, 0), + { .name = "nwindows", .info = &qdev_prop_nwindows }, + DEFINE_PROP_END_OF_LIST() +}; + static void sparc_cpu_class_init(ObjectClass *oc, void *data) { SPARCCPUClass *scc = SPARC_CPU_CLASS(oc); @@ -850,10 +868,13 @@ static void sparc_cpu_class_init(ObjectClass *oc, void *data) scc->parent_realize = dc->realize; dc->realize = sparc_cpu_realizefn; + dc->props = sparc_cpu_properties; scc->parent_reset = cc->reset; cc->reset = sparc_cpu_reset; + cc->class_by_name = sparc_cpu_class_by_name; + cc->parse_features = sparc_cpu_parse_features; cc->has_work = sparc_cpu_has_work; cc->do_interrupt = sparc_cpu_do_interrupt; cc->cpu_exec_interrupt = sparc_cpu_exec_interrupt; @@ -887,15 +908,39 @@ static const TypeInfo sparc_cpu_type_info = { .parent = TYPE_CPU, .instance_size = sizeof(SPARCCPU), .instance_init = sparc_cpu_initfn, - .instance_finalize = sparc_cpu_uninitfn, - .abstract = false, + .abstract = true, .class_size = sizeof(SPARCCPUClass), .class_init = sparc_cpu_class_init, }; +static void sparc_cpu_cpudef_class_init(ObjectClass *oc, void *data) +{ + SPARCCPUClass *scc = SPARC_CPU_CLASS(oc); + scc->cpu_def = data; +} + +static void sparc_register_cpudef_type(const struct sparc_def_t *def) +{ + char *typename = sparc_cpu_type_name(def->name); + TypeInfo ti = { + .name = typename, + .parent = TYPE_SPARC_CPU, + .class_init = sparc_cpu_cpudef_class_init, + .class_data = (void *)def, + }; + + type_register(&ti); + g_free(typename); +} + static void sparc_cpu_register_types(void) { + int i; + type_register_static(&sparc_cpu_type_info); + for (i = 0; i < ARRAY_SIZE(sparc_defs); i++) { + sparc_register_cpudef_type(&sparc_defs[i]); + } } type_init(sparc_cpu_register_types) |