[Qemu-devel] [PATCH 06/14] target-arm: Move SCTLR reset value setup to per cpu init fns

[Peter Maydell <peter.maydell@linaro.org>]

Move the reset value of SCTLR to ARMCPU, initialised in
the per-cpu init functions. It can then be reset by a
simple copy, and we can drop the code from cpu_reset_model_id().

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 target-arm/cpu-qom.h |    1 +
 target-arm/cpu.c     |   23 +++++++++++++++++++++++
 target-arm/helper.c  |   13 +------------
 3 files changed, 25 insertions(+), 12 deletions(-)

diff --git a/target-arm/cpu-qom.h b/target-arm/cpu-qom.h
index fc147c4..5e7a558 100644
--- a/target-arm/cpu-qom.h
+++ b/target-arm/cpu-qom.h
@@ -67,6 +67,7 @@ typedef struct ARMCPU {
     uint32_t mvfr0;
     uint32_t mvfr1;
     uint32_t ctr;
+    uint32_t reset_sctlr;
 } ARMCPU;
 
 static inline ARMCPU *arm_env_get_cpu(CPUARMState *env)
diff --git a/target-arm/cpu.c b/target-arm/cpu.c
index 115561c..c33a451 100644
--- a/target-arm/cpu.c
+++ b/target-arm/cpu.c
@@ -105,6 +105,7 @@ static void arm926_initfn(Object *obj)
     cpu->midr = ARM_CPUID_ARM926;
     cpu->reset_fpsid = 0x41011090;
     cpu->ctr = 0x1dd20d2;
+    cpu->reset_sctlr = 0x00090078;
     arm_cpu_postconfig_init(cpu);
 }
 
@@ -115,6 +116,7 @@ static void arm946_initfn(Object *obj)
     set_feature(&cpu->env, ARM_FEATURE_MPU);
     cpu->midr = ARM_CPUID_ARM946;
     cpu->ctr = 0x0f004006;
+    cpu->reset_sctlr = 0x00000078;
     arm_cpu_postconfig_init(cpu);
 }
 
@@ -127,6 +129,7 @@ static void arm1026_initfn(Object *obj)
     cpu->midr = ARM_CPUID_ARM1026;
     cpu->reset_fpsid = 0x410110a0;
     cpu->ctr = 0x1dd20d2;
+    cpu->reset_sctlr = 0x00090078;
     arm_cpu_postconfig_init(cpu);
 }
 
@@ -140,6 +143,7 @@ static void arm1136_r2_initfn(Object *obj)
     cpu->mvfr0 = 0x11111111;
     cpu->mvfr1 = 0x00000000;
     cpu->ctr = 0x1dd20d2;
+    cpu->reset_sctlr = 0x00050078;
     arm_cpu_postconfig_init(cpu);
 }
 
@@ -154,6 +158,7 @@ static void arm1136_initfn(Object *obj)
     cpu->mvfr0 = 0x11111111;
     cpu->mvfr1 = 0x00000000;
     cpu->ctr = 0x1dd20d2;
+    cpu->reset_sctlr = 0x00050078;
     arm_cpu_postconfig_init(cpu);
 }
 
@@ -168,6 +173,7 @@ static void arm1176_initfn(Object *obj)
     cpu->mvfr0 = 0x11111111;
     cpu->mvfr1 = 0x00000000;
     cpu->ctr = 0x1dd20d2;
+    cpu->reset_sctlr = 0x00050078;
     arm_cpu_postconfig_init(cpu);
 }
 
@@ -206,6 +212,7 @@ static void cortex_a8_initfn(Object *obj)
     cpu->mvfr0 = 0x11110222;
     cpu->mvfr1 = 0x00011100;
     cpu->ctr = 0x82048004;
+    cpu->reset_sctlr = 0x00c50078;
     arm_cpu_postconfig_init(cpu);
 }
 
@@ -227,6 +234,7 @@ static void cortex_a9_initfn(Object *obj)
     cpu->mvfr0 = 0x11110222;
     cpu->mvfr1 = 0x01111111;
     cpu->ctr = 0x80038003;
+    cpu->reset_sctlr = 0x00c50078;
     arm_cpu_postconfig_init(cpu);
 }
 
@@ -246,6 +254,7 @@ static void cortex_a15_initfn(Object *obj)
     cpu->mvfr0 = 0x10110222;
     cpu->mvfr1 = 0x11111111;
     cpu->ctr = 0x8444c004;
+    cpu->reset_sctlr = 0x00c50078;
     arm_cpu_postconfig_init(cpu);
 }
 
@@ -256,6 +265,7 @@ static void ti925t_initfn(Object *obj)
     set_feature(&cpu->env, ARM_FEATURE_OMAPCP);
     cpu->midr = ARM_CPUID_TI925T;
     cpu->ctr = 0x5109149;
+    cpu->reset_sctlr = 0x00000070;
     arm_cpu_postconfig_init(cpu);
 }
 
@@ -264,6 +274,7 @@ static void sa1100_initfn(Object *obj)
     ARMCPU *cpu = ARM_CPU(obj);
     set_feature(&cpu->env, ARM_FEATURE_STRONGARM);
     cpu->midr = ARM_CPUID_SA1100;
+    cpu->reset_sctlr = 0x00000070;
     arm_cpu_postconfig_init(cpu);
 }
 
@@ -272,6 +283,7 @@ static void sa1110_initfn(Object *obj)
     ARMCPU *cpu = ARM_CPU(obj);
     set_feature(&cpu->env, ARM_FEATURE_STRONGARM);
     cpu->midr = ARM_CPUID_SA1110;
+    cpu->reset_sctlr = 0x00000070;
     arm_cpu_postconfig_init(cpu);
 }
 
@@ -282,6 +294,7 @@ static void pxa250_initfn(Object *obj)
     set_feature(&cpu->env, ARM_FEATURE_XSCALE);
     cpu->midr = ARM_CPUID_PXA250;
     cpu->ctr = 0xd172172;
+    cpu->reset_sctlr = 0x00000078;
     arm_cpu_postconfig_init(cpu);
 }
 
@@ -292,6 +305,7 @@ static void pxa255_initfn(Object *obj)
     set_feature(&cpu->env, ARM_FEATURE_XSCALE);
     cpu->midr = ARM_CPUID_PXA255;
     cpu->ctr = 0xd172172;
+    cpu->reset_sctlr = 0x00000078;
     arm_cpu_postconfig_init(cpu);
 }
 
@@ -302,6 +316,7 @@ static void pxa260_initfn(Object *obj)
     set_feature(&cpu->env, ARM_FEATURE_XSCALE);
     cpu->midr = ARM_CPUID_PXA260;
     cpu->ctr = 0xd172172;
+    cpu->reset_sctlr = 0x00000078;
     arm_cpu_postconfig_init(cpu);
 }
 
@@ -312,6 +327,7 @@ static void pxa261_initfn(Object *obj)
     set_feature(&cpu->env, ARM_FEATURE_XSCALE);
     cpu->midr = ARM_CPUID_PXA261;
     cpu->ctr = 0xd172172;
+    cpu->reset_sctlr = 0x00000078;
     arm_cpu_postconfig_init(cpu);
 }
 
@@ -322,6 +338,7 @@ static void pxa262_initfn(Object *obj)
     set_feature(&cpu->env, ARM_FEATURE_XSCALE);
     cpu->midr = ARM_CPUID_PXA262;
     cpu->ctr = 0xd172172;
+    cpu->reset_sctlr = 0x00000078;
     arm_cpu_postconfig_init(cpu);
 }
 
@@ -333,6 +350,7 @@ static void pxa270a0_initfn(Object *obj)
     set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
     cpu->midr = ARM_CPUID_PXA270_A0;
     cpu->ctr = 0xd172172;
+    cpu->reset_sctlr = 0x00000078;
     arm_cpu_postconfig_init(cpu);
 }
 
@@ -344,6 +362,7 @@ static void pxa270a1_initfn(Object *obj)
     set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
     cpu->midr = ARM_CPUID_PXA270_A1;
     cpu->ctr = 0xd172172;
+    cpu->reset_sctlr = 0x00000078;
     arm_cpu_postconfig_init(cpu);
 }
 
@@ -355,6 +374,7 @@ static void pxa270b0_initfn(Object *obj)
     set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
     cpu->midr = ARM_CPUID_PXA270_B0;
     cpu->ctr = 0xd172172;
+    cpu->reset_sctlr = 0x00000078;
     arm_cpu_postconfig_init(cpu);
 }
 
@@ -366,6 +386,7 @@ static void pxa270b1_initfn(Object *obj)
     set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
     cpu->midr = ARM_CPUID_PXA270_B1;
     cpu->ctr = 0xd172172;
+    cpu->reset_sctlr = 0x00000078;
     arm_cpu_postconfig_init(cpu);
 }
 
@@ -377,6 +398,7 @@ static void pxa270c0_initfn(Object *obj)
     set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
     cpu->midr = ARM_CPUID_PXA270_C0;
     cpu->ctr = 0xd172172;
+    cpu->reset_sctlr = 0x00000078;
     arm_cpu_postconfig_init(cpu);
 }
 
@@ -392,6 +414,7 @@ static void pxa270c5_initfn(Object *obj)
     set_feature(&cpu->env, ARM_FEATURE_V7MP);
     cpu->midr = ARM_CPUID_PXA270_C5;
     cpu->ctr = 0xd172172;
+    cpu->reset_sctlr = 0x00000078;
     arm_cpu_postconfig_init(cpu);
 }
 
diff --git a/target-arm/helper.c b/target-arm/helper.c
index e1314c2..cb0ae15 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -51,13 +51,10 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id)
 {
     switch (id) {
     case ARM_CPUID_ARM926:
-        env->cp15.c1_sys = 0x00090078;
         break;
     case ARM_CPUID_ARM946:
-        env->cp15.c1_sys = 0x00000078;
         break;
     case ARM_CPUID_ARM1026:
-        env->cp15.c1_sys = 0x00090078;
         break;
     case ARM_CPUID_ARM1136:
         /* This is the 1136 r1, which is a v6K core */
@@ -72,12 +69,10 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id)
          */
         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.c1_sys = 0x00050078;
         break;
     case ARM_CPUID_ARM1176:
         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.c1_sys = 0x00050078;
         break;
     case ARM_CPUID_ARM11MPCORE:
         memcpy(env->cp15.c0_c1, mpcore_cp15_c0_c1, 8 * sizeof(uint32_t));
@@ -90,7 +85,6 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id)
         env->cp15.c0_ccsid[0] = 0xe007e01a; /* 16k L1 dcache. */
         env->cp15.c0_ccsid[1] = 0x2007e01a; /* 16k L1 icache. */
         env->cp15.c0_ccsid[2] = 0xf0000000; /* No L2 icache. */
-        env->cp15.c1_sys = 0x00c50078;
         break;
     case ARM_CPUID_CORTEXA9:
         memcpy(env->cp15.c0_c1, cortexa9_cp15_c0_c1, 8 * sizeof(uint32_t));
@@ -98,7 +92,6 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id)
         env->cp15.c0_clid = (1 << 27) | (1 << 24) | 3;
         env->cp15.c0_ccsid[0] = 0xe00fe015; /* 16k L1 dcache. */
         env->cp15.c0_ccsid[1] = 0x200fe015; /* 16k L1 icache. */
-        env->cp15.c1_sys = 0x00c50078;
         break;
     case ARM_CPUID_CORTEXA15:
         memcpy(env->cp15.c0_c1, cortexa15_cp15_c0_c1, 8 * sizeof(uint32_t));
@@ -107,7 +100,6 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id)
         env->cp15.c0_ccsid[0] = 0x701fe00a; /* 32K L1 dcache */
         env->cp15.c0_ccsid[1] = 0x201fe00a; /* 32K L1 icache */
         env->cp15.c0_ccsid[2] = 0x711fe07a; /* 4096K L2 unified cache */
-        env->cp15.c1_sys = 0x00c50078;
         break;
     case ARM_CPUID_CORTEXM3:
         break;
@@ -115,7 +107,6 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id)
         break;
     case ARM_CPUID_TI915T:
     case ARM_CPUID_TI925T:
-        env->cp15.c1_sys = 0x00000070;
         env->cp15.c15_i_max = 0x000;
         env->cp15.c15_i_min = 0xff0;
         break;
@@ -125,7 +116,6 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id)
     case ARM_CPUID_PXA261:
     case ARM_CPUID_PXA262:
         /* JTAG_ID is ((id << 28) | 0x09265013) */
-        env->cp15.c1_sys = 0x00000078;
         break;
     case ARM_CPUID_PXA270_A0:
     case ARM_CPUID_PXA270_A1:
@@ -135,11 +125,9 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id)
     case ARM_CPUID_PXA270_C5:
         /* JTAG_ID is ((id << 28) | 0x09265013) */
         env->iwmmxt.cregs[ARM_IWMMXT_wCID] = 0x69051000 | 'Q';
-        env->cp15.c1_sys = 0x00000078;
         break;
     case ARM_CPUID_SA1100:
     case ARM_CPUID_SA1110:
-        env->cp15.c1_sys = 0x00000070;
         break;
     default:
         cpu_abort(env, "Bad CPU ID: %x\n", id);
@@ -174,6 +162,7 @@ void cpu_state_reset(CPUARMState *env)
     env->vfp.xregs[ARM_VFP_MVFR0] = cpu->mvfr0;
     env->vfp.xregs[ARM_VFP_MVFR1] = cpu->mvfr1;
     env->cp15.c0_cachetype = cpu->ctr;
+    env->cp15.c1_sys = cpu->reset_sctlr;
 
 #if defined (CONFIG_USER_ONLY)
     env->uncached_cpsr = ARM_CPU_MODE_USR;
-- 
1.7.1