[Qemu-devel] [RFC PATCH 26/34] arm: Use qomified tcg defintions

[Peter Crosthwaite <crosthwaitepeter@gmail.com>]

Prepare support for multi-arch. TCG core code will have to get the
architecture specific variant of these definitions.

Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
---
 target-arm/cpu.c       | 93 ++++++++++++++++++++++++++++++++++++++++++++++++++
 target-arm/cpu.h       | 89 ++++++-----------------------------------------
 target-arm/op_helper.c |  4 +--
 target-arm/translate.c |  8 +++--
 4 files changed, 110 insertions(+), 84 deletions(-)

diff --git a/target-arm/cpu.c b/target-arm/cpu.c
index 566deb9..2ed6390 100644
--- a/target-arm/cpu.c
+++ b/target-arm/cpu.c
@@ -1176,6 +1176,90 @@ static void arm_any_initfn(Object *obj)
 
 #endif /* !defined(CONFIG_USER_ONLY) || !defined(TARGET_AARCH64) */
 
+static int arm_cpu_mmu_index(CPUState *cpu)
+{
+    CPUARMState *env = cpu->env_ptr;
+    int el = arm_current_el(env);
+
+    if (el < 2 && arm_is_secure_below_el3(env)) {
+        return ARMMMUIdx_S1SE0 + el;
+    }
+    return el;
+}
+
+static void arm_cpu_get_tb_cpu_state(CPUState *cpu, void *pc_ptr,
+                                     void *cs_base_ptr, int *flags)
+{
+    CPUARMState *env = cpu->env_ptr;
+    int fpen;
+    target_ulong *pc = pc_ptr;
+    target_ulong *cs_base = cs_base_ptr;
+
+    if (arm_feature(env, ARM_FEATURE_V6)) {
+        fpen = extract32(env->cp15.cpacr_el1, 20, 2);
+    } else {
+        /* CPACR doesn't exist before v6, so VFP is always accessible */
+        fpen = 3;
+    }
+
+    if (is_a64(env)) {
+        *pc = env->pc;
+        *flags = ARM_TBFLAG_AARCH64_STATE_MASK;
+        if (fpen == 3 || (fpen == 1 && arm_current_el(env) != 0)) {
+            *flags |= ARM_TBFLAG_AA64_FPEN_MASK;
+        }
+        /* The SS_ACTIVE and PSTATE_SS bits correspond to the state machine
+         * states defined in the ARM ARM for software singlestep:
+         *  SS_ACTIVE   PSTATE.SS   State
+         *     0            x       Inactive (the TB flag for SS is always 0)
+         *     1            0       Active-pending
+         *     1            1       Active-not-pending
+         */
+        if (arm_singlestep_active(env)) {
+            *flags |= ARM_TBFLAG_AA64_SS_ACTIVE_MASK;
+            if (env->pstate & PSTATE_SS) {
+                *flags |= ARM_TBFLAG_AA64_PSTATE_SS_MASK;
+            }
+        }
+    } else {
+        *pc = env->regs[15];
+        *flags = (env->thumb << ARM_TBFLAG_THUMB_SHIFT)
+            | (env->vfp.vec_len << ARM_TBFLAG_VECLEN_SHIFT)
+            | (env->vfp.vec_stride << ARM_TBFLAG_VECSTRIDE_SHIFT)
+            | (env->condexec_bits << ARM_TBFLAG_CONDEXEC_SHIFT)
+            | (env->bswap_code << ARM_TBFLAG_BSWAP_CODE_SHIFT);
+        if (!(access_secure_reg(env))) {
+            *flags |= ARM_TBFLAG_NS_MASK;
+        }
+        if (env->vfp.xregs[ARM_VFP_FPEXC] & (1 << 30)
+            || arm_el_is_aa64(env, 1)) {
+            *flags |= ARM_TBFLAG_VFPEN_MASK;
+        }
+        if (fpen == 3 || (fpen == 1 && arm_current_el(env) != 0)) {
+            *flags |= ARM_TBFLAG_CPACR_FPEN_MASK;
+        }
+        /* The SS_ACTIVE and PSTATE_SS bits correspond to the state machine
+         * states defined in the ARM ARM for software singlestep:
+         *  SS_ACTIVE   PSTATE.SS   State
+         *     0            x       Inactive (the TB flag for SS is always 0)
+         *     1            0       Active-pending
+         *     1            1       Active-not-pending
+         */
+        if (arm_singlestep_active(env)) {
+            *flags |= ARM_TBFLAG_SS_ACTIVE_MASK;
+            if (env->uncached_cpsr & PSTATE_SS) {
+                *flags |= ARM_TBFLAG_PSTATE_SS_MASK;
+            }
+        }
+        *flags |= (extract32(env->cp15.c15_cpar, 0, 2)
+                   << ARM_TBFLAG_XSCALE_CPAR_SHIFT);
+    }
+
+    *flags |= (cpu_mmu_index(env) << ARM_TBFLAG_MMUIDX_SHIFT);
+
+    *cs_base = 0;
+}
+
 typedef struct ARMCPUInfo {
     const char *name;
     void (*initfn)(Object *obj);
@@ -1264,6 +1348,15 @@ static void arm_cpu_class_init(ObjectClass *oc, void *data)
     cc->debug_excp_handler = arm_debug_excp_handler;
 
     cc->disas_set_info = arm_disas_set_info;
+
+    cc->cpu_mmu_index = arm_cpu_mmu_index;
+    cc->cpu_get_tb_cpu_state = arm_cpu_get_tb_cpu_state;
+    cc->gen_intermediate_code = arm_gen_intermediate_code;
+    cc->gen_intermediate_code_pc = arm_gen_intermediate_code_pc;
+    cc->restore_state_to_opc = arm_restore_state_to_opc;
+#ifndef CONFIG_USER_ONLY
+    cc->tlb_fill = arm_tlb_fill;
+#endif
 }
 
 static void cpu_register(const ARMCPUInfo *info)
diff --git a/target-arm/cpu.h b/target-arm/cpu.h
index 61d0964..7833ff9 100644
--- a/target-arm/cpu.h
+++ b/target-arm/cpu.h
@@ -1634,17 +1634,6 @@ static inline int arm_mmu_idx_to_el(ARMMMUIdx mmu_idx)
     return mmu_idx & 3;
 }
 
-/* Determine the current mmu_idx to use for normal loads/stores */
-static inline int cpu_mmu_index(CPUARMState *env)
-{
-    int el = arm_current_el(env);
-
-    if (el < 2 && arm_is_secure_below_el3(env)) {
-        return ARMMMUIdx_S1SE0 + el;
-    }
-    return el;
-}
-
 /* Return the Exception Level targeted by debug exceptions;
  * currently always EL1 since we don't implement EL2 or EL3.
  */
@@ -1788,79 +1777,21 @@ static inline bool arm_singlestep_active(CPUARMState *env)
 #define ARM_TBFLAG_NS(F) \
     (((F) & ARM_TBFLAG_NS_MASK) >> ARM_TBFLAG_NS_SHIFT)
 
-static inline void cpu_get_tb_cpu_state(CPUARMState *env, target_ulong *pc,
-                                        target_ulong *cs_base, int *flags)
-{
-    int fpen;
-
-    if (arm_feature(env, ARM_FEATURE_V6)) {
-        fpen = extract32(env->cp15.cpacr_el1, 20, 2);
-    } else {
-        /* CPACR doesn't exist before v6, so VFP is always accessible */
-        fpen = 3;
-    }
-
-    if (is_a64(env)) {
-        *pc = env->pc;
-        *flags = ARM_TBFLAG_AARCH64_STATE_MASK;
-        if (fpen == 3 || (fpen == 1 && arm_current_el(env) != 0)) {
-            *flags |= ARM_TBFLAG_AA64_FPEN_MASK;
-        }
-        /* The SS_ACTIVE and PSTATE_SS bits correspond to the state machine
-         * states defined in the ARM ARM for software singlestep:
-         *  SS_ACTIVE   PSTATE.SS   State
-         *     0            x       Inactive (the TB flag for SS is always 0)
-         *     1            0       Active-pending
-         *     1            1       Active-not-pending
-         */
-        if (arm_singlestep_active(env)) {
-            *flags |= ARM_TBFLAG_AA64_SS_ACTIVE_MASK;
-            if (env->pstate & PSTATE_SS) {
-                *flags |= ARM_TBFLAG_AA64_PSTATE_SS_MASK;
-            }
-        }
-    } else {
-        *pc = env->regs[15];
-        *flags = (env->thumb << ARM_TBFLAG_THUMB_SHIFT)
-            | (env->vfp.vec_len << ARM_TBFLAG_VECLEN_SHIFT)
-            | (env->vfp.vec_stride << ARM_TBFLAG_VECSTRIDE_SHIFT)
-            | (env->condexec_bits << ARM_TBFLAG_CONDEXEC_SHIFT)
-            | (env->bswap_code << ARM_TBFLAG_BSWAP_CODE_SHIFT);
-        if (!(access_secure_reg(env))) {
-            *flags |= ARM_TBFLAG_NS_MASK;
-        }
-        if (env->vfp.xregs[ARM_VFP_FPEXC] & (1 << 30)
-            || arm_el_is_aa64(env, 1)) {
-            *flags |= ARM_TBFLAG_VFPEN_MASK;
-        }
-        if (fpen == 3 || (fpen == 1 && arm_current_el(env) != 0)) {
-            *flags |= ARM_TBFLAG_CPACR_FPEN_MASK;
-        }
-        /* The SS_ACTIVE and PSTATE_SS bits correspond to the state machine
-         * states defined in the ARM ARM for software singlestep:
-         *  SS_ACTIVE   PSTATE.SS   State
-         *     0            x       Inactive (the TB flag for SS is always 0)
-         *     1            0       Active-pending
-         *     1            1       Active-not-pending
-         */
-        if (arm_singlestep_active(env)) {
-            *flags |= ARM_TBFLAG_SS_ACTIVE_MASK;
-            if (env->uncached_cpsr & PSTATE_SS) {
-                *flags |= ARM_TBFLAG_PSTATE_SS_MASK;
-            }
-        }
-        *flags |= (extract32(env->cp15.c15_cpar, 0, 2)
-                   << ARM_TBFLAG_XSCALE_CPAR_SHIFT);
-    }
-
-    *flags |= (cpu_mmu_index(env) << ARM_TBFLAG_MMUIDX_SHIFT);
+#define cpu_get_tb_cpu_state(env, pc, cs_base, flags) \
+    ((env)->container->cpu_get_tb_cpu_state((env)->container, (pc), \
+                                            (cs_base), (flags)))
 
-    *cs_base = 0;
-}
+#define cpu_mmu_index(env) ((env)->container->cpu_mmu_index((env)->container))
 
 #include "exec/cpu-all.h"
 #include "exec/exec-all.h"
 
+void arm_gen_intermediate_code(void *env, struct TranslationBlock *tb);
+void arm_gen_intermediate_code_pc(void *env, struct TranslationBlock *tb);
+void arm_restore_state_to_opc(void *env_ptr, TranslationBlock *tb, int pc_pos);
+void arm_tlb_fill(CPUState *cs, uint64_t addr, int is_write, int mmu_idx,
+                  uintptr_t retaddr);
+
 enum {
     QEMU_PSCI_CONDUIT_DISABLED = 0,
     QEMU_PSCI_CONDUIT_SMC = 1,
diff --git a/target-arm/op_helper.c b/target-arm/op_helper.c
index 1893753..11f04f5 100644
--- a/target-arm/op_helper.c
+++ b/target-arm/op_helper.c
@@ -61,8 +61,8 @@ uint32_t HELPER(neon_tbl)(CPUARMState *env, uint32_t ireg, uint32_t def,
  * NULL, it means that the function was called in C code (i.e. not
  * from generated code or from helper.c)
  */
-void tlb_fill(CPUState *cs, target_ulong addr, int is_write, int mmu_idx,
-              uintptr_t retaddr)
+void arm_tlb_fill(CPUState *cs, uint64_t addr, int is_write, int mmu_idx,
+                  uintptr_t retaddr)
 {
     int ret;
 
diff --git a/target-arm/translate.c b/target-arm/translate.c
index cf76a85..a33343d 100644
--- a/target-arm/translate.c
+++ b/target-arm/translate.c
@@ -11381,12 +11381,12 @@ done_generating:
     }
 }
 
-void gen_intermediate_code(CPUARMState *env, TranslationBlock *tb)
+void arm_gen_intermediate_code(void *env, TranslationBlock *tb)
 {
     gen_intermediate_code_internal(arm_env_get_cpu(env), tb, false);
 }
 
-void gen_intermediate_code_pc(CPUARMState *env, TranslationBlock *tb)
+void arm_gen_intermediate_code_pc(void *env, TranslationBlock *tb)
 {
     gen_intermediate_code_internal(arm_env_get_cpu(env), tb, true);
 }
@@ -11445,8 +11445,10 @@ void arm_cpu_dump_state(CPUState *cs, FILE *f, fprintf_function cpu_fprintf,
     }
 }
 
-void restore_state_to_opc(CPUARMState *env, TranslationBlock *tb, int pc_pos)
+void arm_restore_state_to_opc(void *env_ptr, TranslationBlock *tb, int pc_pos)
 {
+    CPUARMState *env = env_ptr;
+
     if (is_a64(env)) {
         env->pc = tcg_ctx.gen_opc_pc[pc_pos];
         env->condexec_bits = 0;
-- 
1.9.1