diff options
-rw-r--r-- | target-arm/cpu-qom.h | 1 | ||||
-rw-r--r-- | target-arm/cpu.c | 132 | ||||
-rw-r--r-- | target-arm/cpu.h | 6 | ||||
-rw-r--r-- | target-arm/helper.c | 97 |
4 files changed, 137 insertions, 99 deletions
diff --git a/target-arm/cpu-qom.h b/target-arm/cpu-qom.h index a4bcb31d47..7e2d4c942e 100644 --- a/target-arm/cpu-qom.h +++ b/target-arm/cpu-qom.h @@ -79,5 +79,6 @@ static inline ARMCPU *arm_env_get_cpu(CPUARMState *env) #define ENV_GET_CPU(e) CPU(arm_env_get_cpu(e)) +void arm_cpu_realize(ARMCPU *cpu); #endif 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; } diff --git a/target-arm/cpu.h b/target-arm/cpu.h index d2f5c760f5..01e0e36c2f 100644 --- a/target-arm/cpu.h +++ b/target-arm/cpu.h @@ -170,9 +170,6 @@ typedef struct CPUARMState { uint32_t teecr; uint32_t teehbr; - /* Internal CPU feature flags. */ - uint32_t features; - /* VFP coprocessor state. */ struct { float64 regs[32]; @@ -228,6 +225,9 @@ typedef struct CPUARMState { /* These fields after the common ones so they are preserved on reset. */ + /* Internal CPU feature flags. */ + uint32_t features; + /* Coprocessor IO used by peripherals */ struct { ARMReadCPFunc *cp_read; diff --git a/target-arm/helper.c b/target-arm/helper.c index afcd68c0c9..e495de683b 100644 --- a/target-arm/helper.c +++ b/target-arm/helper.c @@ -46,46 +46,30 @@ 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 inline void set_feature(CPUARMState *env, int feature) -{ - env->features |= 1u << feature; -} - static void cpu_reset_model_id(CPUARMState *env, uint32_t id) { switch (id) { case ARM_CPUID_ARM926: - set_feature(env, ARM_FEATURE_V5); - set_feature(env, ARM_FEATURE_VFP); env->vfp.xregs[ARM_VFP_FPSID] = 0x41011090; env->cp15.c0_cachetype = 0x1dd20d2; env->cp15.c1_sys = 0x00090078; break; case ARM_CPUID_ARM946: - set_feature(env, ARM_FEATURE_V5); - set_feature(env, ARM_FEATURE_MPU); env->cp15.c0_cachetype = 0x0f004006; env->cp15.c1_sys = 0x00000078; break; case ARM_CPUID_ARM1026: - set_feature(env, ARM_FEATURE_V5); - set_feature(env, ARM_FEATURE_VFP); - set_feature(env, ARM_FEATURE_AUXCR); env->vfp.xregs[ARM_VFP_FPSID] = 0x410110a0; env->cp15.c0_cachetype = 0x1dd20d2; env->cp15.c1_sys = 0x00090078; break; case ARM_CPUID_ARM1136: /* This is the 1136 r1, which is a v6K core */ - set_feature(env, ARM_FEATURE_V6K); - /* Fall through */ case ARM_CPUID_ARM1136_R2: /* What qemu calls "arm1136_r2" is actually the 1136 r0p2, ie an * older core than plain "arm1136". In particular this does not * have the v6K features. */ - set_feature(env, ARM_FEATURE_V6); - set_feature(env, ARM_FEATURE_VFP); /* These ID register values are correct for 1136 but may be wrong * for 1136_r2 (in particular r0p2 does not actually implement most * of the ID registers). @@ -99,9 +83,6 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id) env->cp15.c1_sys = 0x00050078; break; case ARM_CPUID_ARM1176: - set_feature(env, ARM_FEATURE_V6K); - set_feature(env, ARM_FEATURE_VFP); - set_feature(env, ARM_FEATURE_VAPA); env->vfp.xregs[ARM_VFP_FPSID] = 0x410120b5; env->vfp.xregs[ARM_VFP_MVFR0] = 0x11111111; env->vfp.xregs[ARM_VFP_MVFR1] = 0x00000000; @@ -111,9 +92,6 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id) env->cp15.c1_sys = 0x00050078; break; case ARM_CPUID_ARM11MPCORE: - set_feature(env, ARM_FEATURE_V6K); - set_feature(env, ARM_FEATURE_VFP); - set_feature(env, ARM_FEATURE_VAPA); env->vfp.xregs[ARM_VFP_FPSID] = 0x410120b4; env->vfp.xregs[ARM_VFP_MVFR0] = 0x11111111; env->vfp.xregs[ARM_VFP_MVFR1] = 0x00000000; @@ -122,10 +100,6 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id) env->cp15.c0_cachetype = 0x1dd20d2; break; case ARM_CPUID_CORTEXA8: - set_feature(env, ARM_FEATURE_V7); - set_feature(env, ARM_FEATURE_VFP3); - set_feature(env, ARM_FEATURE_NEON); - set_feature(env, ARM_FEATURE_THUMB2EE); env->vfp.xregs[ARM_VFP_FPSID] = 0x410330c0; env->vfp.xregs[ARM_VFP_MVFR0] = 0x11110222; env->vfp.xregs[ARM_VFP_MVFR1] = 0x00011100; @@ -139,16 +113,6 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id) env->cp15.c1_sys = 0x00c50078; break; case ARM_CPUID_CORTEXA9: - set_feature(env, ARM_FEATURE_V7); - set_feature(env, ARM_FEATURE_VFP3); - set_feature(env, ARM_FEATURE_VFP_FP16); - set_feature(env, ARM_FEATURE_NEON); - set_feature(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(env, ARM_FEATURE_V7MP); env->vfp.xregs[ARM_VFP_FPSID] = 0x41033090; env->vfp.xregs[ARM_VFP_MVFR0] = 0x11110222; env->vfp.xregs[ARM_VFP_MVFR1] = 0x01111111; @@ -161,14 +125,6 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id) env->cp15.c1_sys = 0x00c50078; break; case ARM_CPUID_CORTEXA15: - set_feature(env, ARM_FEATURE_V7); - set_feature(env, ARM_FEATURE_VFP4); - set_feature(env, ARM_FEATURE_VFP_FP16); - set_feature(env, ARM_FEATURE_NEON); - set_feature(env, ARM_FEATURE_THUMB2EE); - set_feature(env, ARM_FEATURE_ARM_DIV); - set_feature(env, ARM_FEATURE_V7MP); - set_feature(env, ARM_FEATURE_GENERIC_TIMER); env->vfp.xregs[ARM_VFP_FPSID] = 0x410430f0; env->vfp.xregs[ARM_VFP_MVFR0] = 0x10110222; env->vfp.xregs[ARM_VFP_MVFR1] = 0x11111111; @@ -182,22 +138,11 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id) env->cp15.c1_sys = 0x00c50078; break; case ARM_CPUID_CORTEXM3: - set_feature(env, ARM_FEATURE_V7); - set_feature(env, ARM_FEATURE_M); break; case ARM_CPUID_ANY: /* For userspace emulation. */ - set_feature(env, ARM_FEATURE_V7); - set_feature(env, ARM_FEATURE_VFP4); - set_feature(env, ARM_FEATURE_VFP_FP16); - set_feature(env, ARM_FEATURE_NEON); - set_feature(env, ARM_FEATURE_THUMB2EE); - set_feature(env, ARM_FEATURE_ARM_DIV); - set_feature(env, ARM_FEATURE_V7MP); break; case ARM_CPUID_TI915T: case ARM_CPUID_TI925T: - set_feature(env, ARM_FEATURE_V4T); - set_feature(env, ARM_FEATURE_OMAPCP); env->cp15.c0_cachetype = 0x5109149; env->cp15.c1_sys = 0x00000070; env->cp15.c15_i_max = 0x000; @@ -208,8 +153,6 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id) case ARM_CPUID_PXA260: case ARM_CPUID_PXA261: case ARM_CPUID_PXA262: - set_feature(env, ARM_FEATURE_V5); - set_feature(env, ARM_FEATURE_XSCALE); /* JTAG_ID is ((id << 28) | 0x09265013) */ env->cp15.c0_cachetype = 0xd172172; env->cp15.c1_sys = 0x00000078; @@ -220,17 +163,13 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id) case ARM_CPUID_PXA270_B1: case ARM_CPUID_PXA270_C0: case ARM_CPUID_PXA270_C5: - set_feature(env, ARM_FEATURE_V5); - set_feature(env, ARM_FEATURE_XSCALE); /* JTAG_ID is ((id << 28) | 0x09265013) */ - set_feature(env, ARM_FEATURE_IWMMXT); env->iwmmxt.cregs[ARM_IWMMXT_wCID] = 0x69051000 | 'Q'; env->cp15.c0_cachetype = 0xd172172; env->cp15.c1_sys = 0x00000078; break; case ARM_CPUID_SA1100: case ARM_CPUID_SA1110: - set_feature(env, ARM_FEATURE_STRONGARM); env->cp15.c1_sys = 0x00000070; break; default: @@ -238,41 +177,6 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id) break; } - /* 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); - } } /* TODO Move contents into arm_cpu_reset() in cpu.c, @@ -413,6 +317,7 @@ CPUARMState *cpu_arm_init(const char *cpu_model) cpu = ARM_CPU(object_new(cpu_model)); env = &cpu->env; env->cpu_model_str = cpu_model; + arm_cpu_realize(cpu); if (tcg_enabled() && !inited) { inited = 1; |