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-rw-r--r--target-arm/cpu.c132
1 files changed, 132 insertions, 0 deletions
diff --git a/target-arm/cpu.c b/target-arm/cpu.c
index 6d4f8fe473..46fbc2d073 100644
--- a/target-arm/cpu.c
+++ b/target-arm/cpu.c
@@ -34,6 +34,11 @@ static void arm_cpu_reset(CPUState *s)
cpu_state_reset(&cpu->env);
}
+static inline void set_feature(CPUARMState *env, int feature)
+{
+ env->features |= 1u << feature;
+}
+
static void arm_cpu_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
@@ -41,161 +46,288 @@ static void arm_cpu_initfn(Object *obj)
cpu_exec_init(&cpu->env);
}
+void arm_cpu_realize(ARMCPU *cpu)
+{
+ /* This function is called by cpu_arm_init() because it
+ * needs to do common actions based on feature bits, etc
+ * that have been set by the subclass init functions.
+ * When we have QOM realize support it should become
+ * a true realize function instead.
+ */
+ CPUARMState *env = &cpu->env;
+ /* Some features automatically imply others: */
+ if (arm_feature(env, ARM_FEATURE_V7)) {
+ set_feature(env, ARM_FEATURE_VAPA);
+ set_feature(env, ARM_FEATURE_THUMB2);
+ if (!arm_feature(env, ARM_FEATURE_M)) {
+ set_feature(env, ARM_FEATURE_V6K);
+ } else {
+ set_feature(env, ARM_FEATURE_V6);
+ }
+ }
+ if (arm_feature(env, ARM_FEATURE_V6K)) {
+ set_feature(env, ARM_FEATURE_V6);
+ set_feature(env, ARM_FEATURE_MVFR);
+ }
+ if (arm_feature(env, ARM_FEATURE_V6)) {
+ set_feature(env, ARM_FEATURE_V5);
+ if (!arm_feature(env, ARM_FEATURE_M)) {
+ set_feature(env, ARM_FEATURE_AUXCR);
+ }
+ }
+ if (arm_feature(env, ARM_FEATURE_V5)) {
+ set_feature(env, ARM_FEATURE_V4T);
+ }
+ if (arm_feature(env, ARM_FEATURE_M)) {
+ set_feature(env, ARM_FEATURE_THUMB_DIV);
+ }
+ if (arm_feature(env, ARM_FEATURE_ARM_DIV)) {
+ set_feature(env, ARM_FEATURE_THUMB_DIV);
+ }
+ if (arm_feature(env, ARM_FEATURE_VFP4)) {
+ set_feature(env, ARM_FEATURE_VFP3);
+ }
+ if (arm_feature(env, ARM_FEATURE_VFP3)) {
+ set_feature(env, ARM_FEATURE_VFP);
+ }
+}
+
/* CPU models */
static void arm926_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
+ set_feature(&cpu->env, ARM_FEATURE_V5);
+ set_feature(&cpu->env, ARM_FEATURE_VFP);
cpu->midr = ARM_CPUID_ARM926;
}
static void arm946_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
+ set_feature(&cpu->env, ARM_FEATURE_V5);
+ set_feature(&cpu->env, ARM_FEATURE_MPU);
cpu->midr = ARM_CPUID_ARM946;
}
static void arm1026_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
+ set_feature(&cpu->env, ARM_FEATURE_V5);
+ set_feature(&cpu->env, ARM_FEATURE_VFP);
+ set_feature(&cpu->env, ARM_FEATURE_AUXCR);
cpu->midr = ARM_CPUID_ARM1026;
}
static void arm1136_r2_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
+ set_feature(&cpu->env, ARM_FEATURE_V6);
+ set_feature(&cpu->env, ARM_FEATURE_VFP);
cpu->midr = ARM_CPUID_ARM1136_R2;
}
static void arm1136_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
+ set_feature(&cpu->env, ARM_FEATURE_V6K);
+ set_feature(&cpu->env, ARM_FEATURE_V6);
+ set_feature(&cpu->env, ARM_FEATURE_VFP);
cpu->midr = ARM_CPUID_ARM1136;
}
static void arm1176_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
+ set_feature(&cpu->env, ARM_FEATURE_V6K);
+ set_feature(&cpu->env, ARM_FEATURE_VFP);
+ set_feature(&cpu->env, ARM_FEATURE_VAPA);
cpu->midr = ARM_CPUID_ARM1176;
}
static void arm11mpcore_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
+ set_feature(&cpu->env, ARM_FEATURE_V6K);
+ set_feature(&cpu->env, ARM_FEATURE_VFP);
+ set_feature(&cpu->env, ARM_FEATURE_VAPA);
cpu->midr = ARM_CPUID_ARM11MPCORE;
}
static void cortex_m3_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
+ set_feature(&cpu->env, ARM_FEATURE_V7);
+ set_feature(&cpu->env, ARM_FEATURE_M);
cpu->midr = ARM_CPUID_CORTEXM3;
}
static void cortex_a8_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
+ set_feature(&cpu->env, ARM_FEATURE_V7);
+ set_feature(&cpu->env, ARM_FEATURE_VFP3);
+ set_feature(&cpu->env, ARM_FEATURE_NEON);
+ set_feature(&cpu->env, ARM_FEATURE_THUMB2EE);
cpu->midr = ARM_CPUID_CORTEXA8;
}
static void cortex_a9_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
+ set_feature(&cpu->env, ARM_FEATURE_V7);
+ set_feature(&cpu->env, ARM_FEATURE_VFP3);
+ set_feature(&cpu->env, ARM_FEATURE_VFP_FP16);
+ set_feature(&cpu->env, ARM_FEATURE_NEON);
+ set_feature(&cpu->env, ARM_FEATURE_THUMB2EE);
+ /* Note that A9 supports the MP extensions even for
+ * A9UP and single-core A9MP (which are both different
+ * and valid configurations; we don't model A9UP).
+ */
+ set_feature(&cpu->env, ARM_FEATURE_V7MP);
cpu->midr = ARM_CPUID_CORTEXA9;
}
static void cortex_a15_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
+ set_feature(&cpu->env, ARM_FEATURE_V7);
+ set_feature(&cpu->env, ARM_FEATURE_VFP4);
+ set_feature(&cpu->env, ARM_FEATURE_VFP_FP16);
+ set_feature(&cpu->env, ARM_FEATURE_NEON);
+ set_feature(&cpu->env, ARM_FEATURE_THUMB2EE);
+ set_feature(&cpu->env, ARM_FEATURE_ARM_DIV);
+ set_feature(&cpu->env, ARM_FEATURE_V7MP);
+ set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER);
cpu->midr = ARM_CPUID_CORTEXA15;
}
static void ti925t_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
+ set_feature(&cpu->env, ARM_FEATURE_V4T);
+ set_feature(&cpu->env, ARM_FEATURE_OMAPCP);
cpu->midr = ARM_CPUID_TI925T;
}
static void sa1100_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
+ set_feature(&cpu->env, ARM_FEATURE_STRONGARM);
cpu->midr = ARM_CPUID_SA1100;
}
static void sa1110_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
+ set_feature(&cpu->env, ARM_FEATURE_STRONGARM);
cpu->midr = ARM_CPUID_SA1110;
}
static void pxa250_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
+ set_feature(&cpu->env, ARM_FEATURE_V5);
+ set_feature(&cpu->env, ARM_FEATURE_XSCALE);
cpu->midr = ARM_CPUID_PXA250;
}
static void pxa255_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
+ set_feature(&cpu->env, ARM_FEATURE_V5);
+ set_feature(&cpu->env, ARM_FEATURE_XSCALE);
cpu->midr = ARM_CPUID_PXA255;
}
static void pxa260_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
+ set_feature(&cpu->env, ARM_FEATURE_V5);
+ set_feature(&cpu->env, ARM_FEATURE_XSCALE);
cpu->midr = ARM_CPUID_PXA260;
}
static void pxa261_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
+ set_feature(&cpu->env, ARM_FEATURE_V5);
+ set_feature(&cpu->env, ARM_FEATURE_XSCALE);
cpu->midr = ARM_CPUID_PXA261;
}
static void pxa262_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
+ set_feature(&cpu->env, ARM_FEATURE_V5);
+ set_feature(&cpu->env, ARM_FEATURE_XSCALE);
cpu->midr = ARM_CPUID_PXA262;
}
static void pxa270a0_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
+ set_feature(&cpu->env, ARM_FEATURE_V5);
+ set_feature(&cpu->env, ARM_FEATURE_XSCALE);
+ set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
cpu->midr = ARM_CPUID_PXA270_A0;
}
static void pxa270a1_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
+ set_feature(&cpu->env, ARM_FEATURE_V5);
+ set_feature(&cpu->env, ARM_FEATURE_XSCALE);
+ set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
cpu->midr = ARM_CPUID_PXA270_A1;
}
static void pxa270b0_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
+ set_feature(&cpu->env, ARM_FEATURE_V5);
+ set_feature(&cpu->env, ARM_FEATURE_XSCALE);
+ set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
cpu->midr = ARM_CPUID_PXA270_B0;
}
static void pxa270b1_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
+ set_feature(&cpu->env, ARM_FEATURE_V5);
+ set_feature(&cpu->env, ARM_FEATURE_XSCALE);
+ set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
cpu->midr = ARM_CPUID_PXA270_B1;
}
static void pxa270c0_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
+ set_feature(&cpu->env, ARM_FEATURE_V5);
+ set_feature(&cpu->env, ARM_FEATURE_XSCALE);
+ set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
cpu->midr = ARM_CPUID_PXA270_C0;
}
static void pxa270c5_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
+ set_feature(&cpu->env, ARM_FEATURE_V5);
+ set_feature(&cpu->env, ARM_FEATURE_XSCALE);
+ set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
cpu->midr = ARM_CPUID_PXA270_C5;
}
static void arm_any_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
+ set_feature(&cpu->env, ARM_FEATURE_V7);
+ set_feature(&cpu->env, ARM_FEATURE_VFP4);
+ set_feature(&cpu->env, ARM_FEATURE_VFP_FP16);
+ set_feature(&cpu->env, ARM_FEATURE_NEON);
+ set_feature(&cpu->env, ARM_FEATURE_THUMB2EE);
+ set_feature(&cpu->env, ARM_FEATURE_ARM_DIV);
+ set_feature(&cpu->env, ARM_FEATURE_V7MP);
cpu->midr = ARM_CPUID_ANY;
}
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-18 13:10:26 +0000