Patchwork [v2,04/14] target-arm: Move MVFR* setup to per cpu init fns

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Submitter Peter Maydell
Date April 14, 2012, 4:42 p.m.
Message ID <1334421743-31146-6-git-send-email-peter.maydell@linaro.org>
Download mbox | patch
Permalink /patch/152528/
State New
Headers show

Comments

Peter Maydell - April 14, 2012, 4:42 p.m.
Move the MVFR* VFP feature register values to ARMCPU,
so they are set up by the implementation-specific instance
init functions rather than in cpu_reset_model_id().

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 target-arm/cpu-qom.h |    2 ++
 target-arm/cpu.c     |   14 ++++++++++++++
 target-arm/helper.c  |   14 ++------------
 3 files changed, 18 insertions(+), 12 deletions(-)
Andreas Färber - April 20, 2012, 3:03 p.m.
Am 14.04.2012 18:42, schrieb Peter Maydell:
> Move the MVFR* VFP feature register values to ARMCPU,
> so they are set up by the implementation-specific instance
> init functions rather than in cpu_reset_model_id().
> 
> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

Acked-by: Andreas Färber <afaerber@suse.de>

/-F

Patch

diff --git a/target-arm/cpu-qom.h b/target-arm/cpu-qom.h
index 7cc4cd5..c51eb84 100644
--- a/target-arm/cpu-qom.h
+++ b/target-arm/cpu-qom.h
@@ -71,6 +71,8 @@  typedef struct ARMCPU {
      */
     uint32_t midr;
     uint32_t reset_fpsid;
+    uint32_t mvfr0;
+    uint32_t mvfr1;
 } ARMCPU;
 
 static inline ARMCPU *arm_env_get_cpu(CPUARMState *env)
diff --git a/target-arm/cpu.c b/target-arm/cpu.c
index 9d23a1a..8e2d8c2 100644
--- a/target-arm/cpu.c
+++ b/target-arm/cpu.c
@@ -128,6 +128,8 @@  static void arm1136_r2_initfn(Object *obj)
     set_feature(&cpu->env, ARM_FEATURE_VFP);
     cpu->midr = ARM_CPUID_ARM1136_R2;
     cpu->reset_fpsid = 0x410120b4;
+    cpu->mvfr0 = 0x11111111;
+    cpu->mvfr1 = 0x00000000;
 }
 
 static void arm1136_initfn(Object *obj)
@@ -138,6 +140,8 @@  static void arm1136_initfn(Object *obj)
     set_feature(&cpu->env, ARM_FEATURE_VFP);
     cpu->midr = ARM_CPUID_ARM1136;
     cpu->reset_fpsid = 0x410120b4;
+    cpu->mvfr0 = 0x11111111;
+    cpu->mvfr1 = 0x00000000;
 }
 
 static void arm1176_initfn(Object *obj)
@@ -148,6 +152,8 @@  static void arm1176_initfn(Object *obj)
     set_feature(&cpu->env, ARM_FEATURE_VAPA);
     cpu->midr = ARM_CPUID_ARM1176;
     cpu->reset_fpsid = 0x410120b5;
+    cpu->mvfr0 = 0x11111111;
+    cpu->mvfr1 = 0x00000000;
 }
 
 static void arm11mpcore_initfn(Object *obj)
@@ -158,6 +164,8 @@  static void arm11mpcore_initfn(Object *obj)
     set_feature(&cpu->env, ARM_FEATURE_VAPA);
     cpu->midr = ARM_CPUID_ARM11MPCORE;
     cpu->reset_fpsid = 0x410120b4;
+    cpu->mvfr0 = 0x11111111;
+    cpu->mvfr1 = 0x00000000;
 }
 
 static void cortex_m3_initfn(Object *obj)
@@ -177,6 +185,8 @@  static void cortex_a8_initfn(Object *obj)
     set_feature(&cpu->env, ARM_FEATURE_THUMB2EE);
     cpu->midr = ARM_CPUID_CORTEXA8;
     cpu->reset_fpsid = 0x410330c0;
+    cpu->mvfr0 = 0x11110222;
+    cpu->mvfr1 = 0x00011100;
 }
 
 static void cortex_a9_initfn(Object *obj)
@@ -194,6 +204,8 @@  static void cortex_a9_initfn(Object *obj)
     set_feature(&cpu->env, ARM_FEATURE_V7MP);
     cpu->midr = ARM_CPUID_CORTEXA9;
     cpu->reset_fpsid = 0x41033090;
+    cpu->mvfr0 = 0x11110222;
+    cpu->mvfr1 = 0x01111111;
 }
 
 static void cortex_a15_initfn(Object *obj)
@@ -209,6 +221,8 @@  static void cortex_a15_initfn(Object *obj)
     set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER);
     cpu->midr = ARM_CPUID_CORTEXA15;
     cpu->reset_fpsid = 0x410430f0;
+    cpu->mvfr0 = 0x10110222;
+    cpu->mvfr1 = 0x11111111;
 }
 
 static void ti925t_initfn(Object *obj)
diff --git a/target-arm/helper.c b/target-arm/helper.c
index 3247dd3..777bb03 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -72,31 +72,23 @@  static void cpu_reset_model_id(CPUARMState *env, uint32_t id)
          * for 1136_r2 (in particular r0p2 does not actually implement most
          * of the ID registers).
          */
-        env->vfp.xregs[ARM_VFP_MVFR0] = 0x11111111;
-        env->vfp.xregs[ARM_VFP_MVFR1] = 0x00000000;
         memcpy(env->cp15.c0_c1, arm1136_cp15_c0_c1, 8 * sizeof(uint32_t));
         memcpy(env->cp15.c0_c2, arm1136_cp15_c0_c2, 8 * sizeof(uint32_t));
         env->cp15.c0_cachetype = 0x1dd20d2;
         env->cp15.c1_sys = 0x00050078;
         break;
     case ARM_CPUID_ARM1176:
-        env->vfp.xregs[ARM_VFP_MVFR0] = 0x11111111;
-        env->vfp.xregs[ARM_VFP_MVFR1] = 0x00000000;
         memcpy(env->cp15.c0_c1, arm1176_cp15_c0_c1, 8 * sizeof(uint32_t));
         memcpy(env->cp15.c0_c2, arm1176_cp15_c0_c2, 8 * sizeof(uint32_t));
         env->cp15.c0_cachetype = 0x1dd20d2;
         env->cp15.c1_sys = 0x00050078;
         break;
     case ARM_CPUID_ARM11MPCORE:
-        env->vfp.xregs[ARM_VFP_MVFR0] = 0x11111111;
-        env->vfp.xregs[ARM_VFP_MVFR1] = 0x00000000;
         memcpy(env->cp15.c0_c1, mpcore_cp15_c0_c1, 8 * sizeof(uint32_t));
         memcpy(env->cp15.c0_c2, mpcore_cp15_c0_c2, 8 * sizeof(uint32_t));
         env->cp15.c0_cachetype = 0x1dd20d2;
         break;
     case ARM_CPUID_CORTEXA8:
-        env->vfp.xregs[ARM_VFP_MVFR0] = 0x11110222;
-        env->vfp.xregs[ARM_VFP_MVFR1] = 0x00011100;
         memcpy(env->cp15.c0_c1, cortexa8_cp15_c0_c1, 8 * sizeof(uint32_t));
         memcpy(env->cp15.c0_c2, cortexa8_cp15_c0_c2, 8 * sizeof(uint32_t));
         env->cp15.c0_cachetype = 0x82048004;
@@ -107,8 +99,6 @@  static void cpu_reset_model_id(CPUARMState *env, uint32_t id)
         env->cp15.c1_sys = 0x00c50078;
         break;
     case ARM_CPUID_CORTEXA9:
-        env->vfp.xregs[ARM_VFP_MVFR0] = 0x11110222;
-        env->vfp.xregs[ARM_VFP_MVFR1] = 0x01111111;
         memcpy(env->cp15.c0_c1, cortexa9_cp15_c0_c1, 8 * sizeof(uint32_t));
         memcpy(env->cp15.c0_c2, cortexa9_cp15_c0_c2, 8 * sizeof(uint32_t));
         env->cp15.c0_cachetype = 0x80038003;
@@ -118,8 +108,6 @@  static void cpu_reset_model_id(CPUARMState *env, uint32_t id)
         env->cp15.c1_sys = 0x00c50078;
         break;
     case ARM_CPUID_CORTEXA15:
-        env->vfp.xregs[ARM_VFP_MVFR0] = 0x10110222;
-        env->vfp.xregs[ARM_VFP_MVFR1] = 0x11111111;
         memcpy(env->cp15.c0_c1, cortexa15_cp15_c0_c1, 8 * sizeof(uint32_t));
         memcpy(env->cp15.c0_c2, cortexa15_cp15_c0_c2, 8 * sizeof(uint32_t));
         env->cp15.c0_cachetype = 0x8444c004;
@@ -194,6 +182,8 @@  void cpu_state_reset(CPUARMState *env)
     env->cp15.c15_config_base_address = tmp;
     env->cp15.c0_cpuid = cpu->midr;
     env->vfp.xregs[ARM_VFP_FPSID] = cpu->reset_fpsid;
+    env->vfp.xregs[ARM_VFP_MVFR0] = cpu->mvfr0;
+    env->vfp.xregs[ARM_VFP_MVFR1] = cpu->mvfr1;
 
 #if defined (CONFIG_USER_ONLY)
     env->uncached_cpsr = ARM_CPU_MODE_USR;