[Qemu-devel] [PATCH v2 03/14] target-arm: Move FPSID config to cpu init fns

[Peter Maydell]

Move the reset FPSID to the ARMCPU struct, and set it in the
per-implementation instance init function. At reset we then
just copy the reset value into the CPUARMState field.

Signed-off-by: Peter Maydell <address@hidden>
---
 target-arm/cpu-qom.h |    1 +
 target-arm/cpu.c     |    9 +++++++++
 target-arm/helper.c  |   10 ++--------
 3 files changed, 12 insertions(+), 8 deletions(-)

diff --git a/target-arm/cpu-qom.h b/target-arm/cpu-qom.h
index 7e2d4c9..7cc4cd5 100644
--- a/target-arm/cpu-qom.h
+++ b/target-arm/cpu-qom.h
@@ -70,6 +70,7 @@ typedef struct ARMCPU {
      * prefix means a constant register.
      */
     uint32_t midr;
+    uint32_t reset_fpsid;
 } ARMCPU;
 
 static inline ARMCPU *arm_env_get_cpu(CPUARMState *env)
diff --git a/target-arm/cpu.c b/target-arm/cpu.c
index 958f5c5..9d23a1a 100644
--- a/target-arm/cpu.c
+++ b/target-arm/cpu.c
@@ -100,6 +100,7 @@ static void arm926_initfn(Object *obj)
     set_feature(&cpu->env, ARM_FEATURE_V5);
     set_feature(&cpu->env, ARM_FEATURE_VFP);
     cpu->midr = ARM_CPUID_ARM926;
+    cpu->reset_fpsid = 0x41011090;
 }
 
 static void arm946_initfn(Object *obj)
@@ -117,6 +118,7 @@ static void arm1026_initfn(Object *obj)
     set_feature(&cpu->env, ARM_FEATURE_VFP);
     set_feature(&cpu->env, ARM_FEATURE_AUXCR);
     cpu->midr = ARM_CPUID_ARM1026;
+    cpu->reset_fpsid = 0x410110a0;
 }
 
 static void arm1136_r2_initfn(Object *obj)
@@ -125,6 +127,7 @@ static void arm1136_r2_initfn(Object *obj)
     set_feature(&cpu->env, ARM_FEATURE_V6);
     set_feature(&cpu->env, ARM_FEATURE_VFP);
     cpu->midr = ARM_CPUID_ARM1136_R2;
+    cpu->reset_fpsid = 0x410120b4;
 }
 
 static void arm1136_initfn(Object *obj)
@@ -134,6 +137,7 @@ static void arm1136_initfn(Object *obj)
     set_feature(&cpu->env, ARM_FEATURE_V6);
     set_feature(&cpu->env, ARM_FEATURE_VFP);
     cpu->midr = ARM_CPUID_ARM1136;
+    cpu->reset_fpsid = 0x410120b4;
 }
 
 static void arm1176_initfn(Object *obj)
@@ -143,6 +147,7 @@ static void arm1176_initfn(Object *obj)
     set_feature(&cpu->env, ARM_FEATURE_VFP);
     set_feature(&cpu->env, ARM_FEATURE_VAPA);
     cpu->midr = ARM_CPUID_ARM1176;
+    cpu->reset_fpsid = 0x410120b5;
 }
 
 static void arm11mpcore_initfn(Object *obj)
@@ -152,6 +157,7 @@ static void arm11mpcore_initfn(Object *obj)
     set_feature(&cpu->env, ARM_FEATURE_VFP);
     set_feature(&cpu->env, ARM_FEATURE_VAPA);
     cpu->midr = ARM_CPUID_ARM11MPCORE;
+    cpu->reset_fpsid = 0x410120b4;
 }
 
 static void cortex_m3_initfn(Object *obj)
@@ -170,6 +176,7 @@ static void cortex_a8_initfn(Object *obj)
     set_feature(&cpu->env, ARM_FEATURE_NEON);
     set_feature(&cpu->env, ARM_FEATURE_THUMB2EE);
     cpu->midr = ARM_CPUID_CORTEXA8;
+    cpu->reset_fpsid = 0x410330c0;
 }
 
 static void cortex_a9_initfn(Object *obj)
@@ -186,6 +193,7 @@ static void cortex_a9_initfn(Object *obj)
      */
     set_feature(&cpu->env, ARM_FEATURE_V7MP);
     cpu->midr = ARM_CPUID_CORTEXA9;
+    cpu->reset_fpsid = 0x41033090;
 }
 
 static void cortex_a15_initfn(Object *obj)
@@ -200,6 +208,7 @@ static void cortex_a15_initfn(Object *obj)
     set_feature(&cpu->env, ARM_FEATURE_V7MP);
     set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER);
     cpu->midr = ARM_CPUID_CORTEXA15;
+    cpu->reset_fpsid = 0x410430f0;
 }
 
 static void ti925t_initfn(Object *obj)
diff --git a/target-arm/helper.c b/target-arm/helper.c
index e495de6..3247dd3 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -50,7 +50,6 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id)
 {
     switch (id) {
     case ARM_CPUID_ARM926:
-        env->vfp.xregs[ARM_VFP_FPSID] = 0x41011090;
         env->cp15.c0_cachetype = 0x1dd20d2;
         env->cp15.c1_sys = 0x00090078;
         break;
@@ -59,7 +58,6 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id)
         env->cp15.c1_sys = 0x00000078;
         break;
     case ARM_CPUID_ARM1026:
-        env->vfp.xregs[ARM_VFP_FPSID] = 0x410110a0;
         env->cp15.c0_cachetype = 0x1dd20d2;
         env->cp15.c1_sys = 0x00090078;
         break;
@@ -74,7 +72,6 @@ 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_FPSID] = 0x410120b4;
         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));
@@ -83,7 +80,6 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id)
         env->cp15.c1_sys = 0x00050078;
         break;
     case ARM_CPUID_ARM1176:
-        env->vfp.xregs[ARM_VFP_FPSID] = 0x410120b5;
         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));
@@ -92,7 +88,6 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id)
         env->cp15.c1_sys = 0x00050078;
         break;
     case ARM_CPUID_ARM11MPCORE:
-        env->vfp.xregs[ARM_VFP_FPSID] = 0x410120b4;
         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));
@@ -100,7 +95,6 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id)
         env->cp15.c0_cachetype = 0x1dd20d2;
         break;
     case ARM_CPUID_CORTEXA8:
-        env->vfp.xregs[ARM_VFP_FPSID] = 0x410330c0;
         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));
@@ -113,7 +107,6 @@ 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_FPSID] = 0x41033090;
         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));
@@ -125,7 +118,6 @@ 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_FPSID] = 0x410430f0;
         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));
@@ -201,6 +193,8 @@ void cpu_state_reset(CPUARMState *env)
         cpu_reset_model_id(env, id);
     env->cp15.c15_config_base_address = tmp;
     env->cp15.c0_cpuid = cpu->midr;
+    env->vfp.xregs[ARM_VFP_FPSID] = cpu->reset_fpsid;
+
 #if defined (CONFIG_USER_ONLY)
     env->uncached_cpsr = ARM_CPU_MODE_USR;
     /* For user mode we must enable access to coprocessors */
-- 
1.7.1