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target-arm: Add QOM subclasses for each ARM cpu implementation

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Register subclasses for each ARM CPU implementation.

Let arm_cpu_list() enumerate CPU subclasses in alphabetical order,
except for special value "any".

Replace cpu_arm_find_by_name()'s string -> CPUID lookup by storing the
CPUID (aka MIDR, Main ID Register) value in the class.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2012-04-20 17:58:31 +00:00
parent ce854d7cc3
commit 777dc78411
3 changed files with 282 additions and 65 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
target-arm/cpu-qom.h
View file

@ -58,6 +58,18 @@ typedef struct ARMCPU {
/*< public >*/
CPUARMState env;
/* The instance init functions for implementation-specific subclasses
* set these fields to specify the implementation-dependent values of
* various constant registers and reset values of non-constant
* registers.
* Some of these might become QOM properties eventually.
* Field names match the official register names as defined in the
* ARMv7AR ARM Architecture Reference Manual. A reset_ prefix
* is used for reset values of non-constant registers; no reset_
* prefix means a constant register.
*/
uint32_t midr;
} ARMCPU;
static inline ARMCPU *arm_env_get_cpu(CPUARMState *env)

226
target-arm/cpu.c
View file

@ -34,6 +34,211 @@ static void arm_cpu_reset(CPUState *s)
cpu_state_reset(&cpu->env);
}
static void arm_cpu_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
cpu_exec_init(&cpu->env);
}
/* CPU models */
static void arm926_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
cpu->midr = ARM_CPUID_ARM926;
}
static void arm946_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
cpu->midr = ARM_CPUID_ARM946;
}
static void arm1026_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
cpu->midr = ARM_CPUID_ARM1026;
}
static void arm1136_r2_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
cpu->midr = ARM_CPUID_ARM1136_R2;
}
static void arm1136_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
cpu->midr = ARM_CPUID_ARM1136;
}
static void arm1176_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
cpu->midr = ARM_CPUID_ARM1176;
}
static void arm11mpcore_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
cpu->midr = ARM_CPUID_ARM11MPCORE;
}
static void cortex_m3_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
cpu->midr = ARM_CPUID_CORTEXM3;
}
static void cortex_a8_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
cpu->midr = ARM_CPUID_CORTEXA8;
}
static void cortex_a9_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
cpu->midr = ARM_CPUID_CORTEXA9;
}
static void cortex_a15_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
cpu->midr = ARM_CPUID_CORTEXA15;
}
static void ti925t_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
cpu->midr = ARM_CPUID_TI925T;
}
static void sa1100_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
cpu->midr = ARM_CPUID_SA1100;
}
static void sa1110_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
cpu->midr = ARM_CPUID_SA1110;
}
static void pxa250_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
cpu->midr = ARM_CPUID_PXA250;
}
static void pxa255_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
cpu->midr = ARM_CPUID_PXA255;
}
static void pxa260_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
cpu->midr = ARM_CPUID_PXA260;
}
static void pxa261_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
cpu->midr = ARM_CPUID_PXA261;
}
static void pxa262_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
cpu->midr = ARM_CPUID_PXA262;
}
static void pxa270a0_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
cpu->midr = ARM_CPUID_PXA270_A0;
}
static void pxa270a1_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
cpu->midr = ARM_CPUID_PXA270_A1;
}
static void pxa270b0_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
cpu->midr = ARM_CPUID_PXA270_B0;
}
static void pxa270b1_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
cpu->midr = ARM_CPUID_PXA270_B1;
}
static void pxa270c0_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
cpu->midr = ARM_CPUID_PXA270_C0;
}
static void pxa270c5_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
cpu->midr = ARM_CPUID_PXA270_C5;
}
static void arm_any_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
cpu->midr = ARM_CPUID_ANY;
}
typedef struct ARMCPUInfo {
const char *name;
void (*initfn)(Object *obj);
} ARMCPUInfo;
static const ARMCPUInfo arm_cpus[] = {
{ .name = "arm926", .initfn = arm926_initfn },
{ .name = "arm946", .initfn = arm946_initfn },
{ .name = "arm1026", .initfn = arm1026_initfn },
/* What QEMU calls "arm1136-r2" is actually the 1136 r0p2, i.e. an
* older core than plain "arm1136". In particular this does not
* have the v6K features.
*/
{ .name = "arm1136-r2", .initfn = arm1136_r2_initfn },
{ .name = "arm1136", .initfn = arm1136_initfn },
{ .name = "arm1176", .initfn = arm1176_initfn },
{ .name = "arm11mpcore", .initfn = arm11mpcore_initfn },
{ .name = "cortex-m3", .initfn = cortex_m3_initfn },
{ .name = "cortex-a8", .initfn = cortex_a8_initfn },
{ .name = "cortex-a9", .initfn = cortex_a9_initfn },
{ .name = "cortex-a15", .initfn = cortex_a15_initfn },
{ .name = "ti925t", .initfn = ti925t_initfn },
{ .name = "sa1100", .initfn = sa1100_initfn },
{ .name = "sa1110", .initfn = sa1110_initfn },
{ .name = "pxa250", .initfn = pxa250_initfn },
{ .name = "pxa255", .initfn = pxa255_initfn },
{ .name = "pxa260", .initfn = pxa260_initfn },
{ .name = "pxa261", .initfn = pxa261_initfn },
{ .name = "pxa262", .initfn = pxa262_initfn },
/* "pxa270" is an alias for "pxa270-a0" */
{ .name = "pxa270", .initfn = pxa270a0_initfn },
{ .name = "pxa270-a0", .initfn = pxa270a0_initfn },
{ .name = "pxa270-a1", .initfn = pxa270a1_initfn },
{ .name = "pxa270-b0", .initfn = pxa270b0_initfn },
{ .name = "pxa270-b1", .initfn = pxa270b1_initfn },
{ .name = "pxa270-c0", .initfn = pxa270c0_initfn },
{ .name = "pxa270-c5", .initfn = pxa270c5_initfn },
{ .name = "any", .initfn = arm_any_initfn },
};
static void arm_cpu_class_init(ObjectClass *oc, void *data)
{
ARMCPUClass *acc = ARM_CPU_CLASS(oc);
@ -43,18 +248,37 @@ static void arm_cpu_class_init(ObjectClass *oc, void *data)
cc->reset = arm_cpu_reset;
}
static void cpu_register(const ARMCPUInfo *info)
{
TypeInfo type_info = {
.name = info->name,
.parent = TYPE_ARM_CPU,
.instance_size = sizeof(ARMCPU),
.instance_init = info->initfn,
.class_size = sizeof(ARMCPUClass),
};
type_register_static(&type_info);
}
static const TypeInfo arm_cpu_type_info = {
.name = TYPE_ARM_CPU,
.parent = TYPE_CPU,
.instance_size = sizeof(ARMCPU),
.abstract = false,
.instance_init = arm_cpu_initfn,
.abstract = true,
.class_size = sizeof(ARMCPUClass),
.class_init = arm_cpu_class_init,
};
static void arm_cpu_register_types(void)
{
int i;
type_register_static(&arm_cpu_type_info);
for (i = 0; i < ARRAY_SIZE(arm_cpus); i++) {
cpu_register(&arm_cpus[i]);
}
}
type_init(arm_cpu_register_types)

109
target-arm/helper.c
View file

@ -46,8 +46,6 @@ static uint32_t arm1176_cp15_c0_c1[8] =
static uint32_t arm1176_cp15_c0_c2[8] =
{ 0x0140011, 0x12002111, 0x11231121, 0x01102131, 0x01141, 0, 0, 0 };
static uint32_t cpu_arm_find_by_name(const char *name);
static inline void set_feature(CPUARMState *env, int feature)
{
env->features |= 1u << feature;
@ -55,7 +53,6 @@ static inline void set_feature(CPUARMState *env, int feature)
static void cpu_reset_model_id(CPUARMState *env, uint32_t id)
{
env->cp15.c0_cpuid = id;
switch (id) {
case ARM_CPUID_ARM926:
set_feature(env, ARM_FEATURE_V5);
@ -201,7 +198,6 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id)
case ARM_CPUID_TI925T:
set_feature(env, ARM_FEATURE_V4T);
set_feature(env, ARM_FEATURE_OMAPCP);
env->cp15.c0_cpuid = ARM_CPUID_TI925T; /* Depends on wiring. */
env->cp15.c0_cachetype = 0x5109149;
env->cp15.c1_sys = 0x00000070;
env->cp15.c15_i_max = 0x000;
@ -287,18 +283,20 @@ void cpu_state_reset(CPUARMState *env)
{
uint32_t id;
uint32_t tmp = 0;
ARMCPU *cpu = arm_env_get_cpu(env);
if (qemu_loglevel_mask(CPU_LOG_RESET)) {
qemu_log("CPU Reset (CPU %d)\n", env->cpu_index);
log_cpu_state(env, 0);
}
id = env->cp15.c0_cpuid;
id = cpu->midr;
tmp = env->cp15.c15_config_base_address;
memset(env, 0, offsetof(CPUARMState, breakpoints));
if (id)
cpu_reset_model_id(env, id);
env->cp15.c15_config_base_address = tmp;
env->cp15.c0_cpuid = cpu->midr;
#if defined (CONFIG_USER_ONLY)
env->uncached_cpsr = ARM_CPU_MODE_USR;
/* For user mode we must enable access to coprocessors */
@ -407,22 +405,20 @@ CPUARMState *cpu_arm_init(const char *cpu_model)
{
ARMCPU *cpu;
CPUARMState *env;
uint32_t id;
static int inited = 0;
id = cpu_arm_find_by_name(cpu_model);
if (id == 0)
if (!object_class_by_name(cpu_model)) {
return NULL;
cpu = ARM_CPU(object_new(TYPE_ARM_CPU));
}
cpu = ARM_CPU(object_new(cpu_model));
env = &cpu->env;
cpu_exec_init(env);
env->cpu_model_str = cpu_model;
if (tcg_enabled() && !inited) {
inited = 1;
arm_translate_init();
}
env->cpu_model_str = cpu_model;
env->cp15.c0_cpuid = id;
cpu_state_reset(env);
if (arm_feature(env, ARM_FEATURE_NEON)) {
gdb_register_coprocessor(env, vfp_gdb_get_reg, vfp_gdb_set_reg,
@ -438,66 +434,51 @@ CPUARMState *cpu_arm_init(const char *cpu_model)
return env;
}
struct arm_cpu_t {
uint32_t id;
const char *name;
};
typedef struct ARMCPUListState {
fprintf_function cpu_fprintf;
FILE *file;
} ARMCPUListState;
static const struct arm_cpu_t arm_cpu_names[] = {
{ ARM_CPUID_ARM926, "arm926"},
{ ARM_CPUID_ARM946, "arm946"},
{ ARM_CPUID_ARM1026, "arm1026"},
{ ARM_CPUID_ARM1136, "arm1136"},
{ ARM_CPUID_ARM1136_R2, "arm1136-r2"},
{ ARM_CPUID_ARM1176, "arm1176"},
{ ARM_CPUID_ARM11MPCORE, "arm11mpcore"},
{ ARM_CPUID_CORTEXM3, "cortex-m3"},
{ ARM_CPUID_CORTEXA8, "cortex-a8"},
{ ARM_CPUID_CORTEXA9, "cortex-a9"},
{ ARM_CPUID_CORTEXA15, "cortex-a15" },
{ ARM_CPUID_TI925T, "ti925t" },
{ ARM_CPUID_PXA250, "pxa250" },
{ ARM_CPUID_SA1100, "sa1100" },
{ ARM_CPUID_SA1110, "sa1110" },
{ ARM_CPUID_PXA255, "pxa255" },
{ ARM_CPUID_PXA260, "pxa260" },
{ ARM_CPUID_PXA261, "pxa261" },
{ ARM_CPUID_PXA262, "pxa262" },
{ ARM_CPUID_PXA270, "pxa270" },
{ ARM_CPUID_PXA270_A0, "pxa270-a0" },
{ ARM_CPUID_PXA270_A1, "pxa270-a1" },
{ ARM_CPUID_PXA270_B0, "pxa270-b0" },
{ ARM_CPUID_PXA270_B1, "pxa270-b1" },
{ ARM_CPUID_PXA270_C0, "pxa270-c0" },
{ ARM_CPUID_PXA270_C5, "pxa270-c5" },
{ ARM_CPUID_ANY, "any"},
{ 0, NULL}
};
void arm_cpu_list(FILE *f, fprintf_function cpu_fprintf)
/* Sort alphabetically by type name, except for "any". */
static gint arm_cpu_list_compare(gconstpointer a, gconstpointer b)
{
int i;
ObjectClass *class_a = (ObjectClass *)a;
ObjectClass *class_b = (ObjectClass *)b;
const char *name_a, *name_b;
(*cpu_fprintf)(f, "Available CPUs:\n");
for (i = 0; arm_cpu_names[i].name; i++) {
(*cpu_fprintf)(f, " %s\n", arm_cpu_names[i].name);
name_a = object_class_get_name(class_a);
name_b = object_class_get_name(class_b);
if (strcmp(name_a, "any") == 0) {
return 1;
} else if (strcmp(name_b, "any") == 0) {
return -1;
} else {
return strcmp(name_a, name_b);
}
}
/* return 0 if not found */
static uint32_t cpu_arm_find_by_name(const char *name)
static void arm_cpu_list_entry(gpointer data, gpointer user_data)
{
int i;
uint32_t id;
ObjectClass *oc = data;
ARMCPUListState *s = user_data;
id = 0;
for (i = 0; arm_cpu_names[i].name; i++) {
if (strcmp(name, arm_cpu_names[i].name) == 0) {
id = arm_cpu_names[i].id;
break;
}
}
return id;
(*s->cpu_fprintf)(s->file, " %s\n",
object_class_get_name(oc));
}
void arm_cpu_list(FILE *f, fprintf_function cpu_fprintf)
{
ARMCPUListState s = {
.file = f,
.cpu_fprintf = cpu_fprintf,
};
GSList *list;
list = object_class_get_list(TYPE_ARM_CPU, false);
list = g_slist_sort(list, arm_cpu_list_compare);
(*cpu_fprintf)(f, "Available CPUs:\n");
g_slist_foreach(list, arm_cpu_list_entry, &s);
g_slist_free(list);
}
static int bad_mode_switch(CPUARMState *env, int mode)