[v4,14/33] target/ppc/mmu_common.c: Split off real mode cases in get_physical_address_wtlb()

Commit Message

BALATON Zoltan May 8, 2024, 11:36 p.m. UTC

The real mode handling is identical in the remaining switch cases.
Split off these common real mode cases into a separate conditional to
leave only the else branches in the switch that are different.

Signed-off-by: BALATON Zoltan <[e-mail]>
Reviewed-by: Nicholas Piggin <[e-mail]>
---
 target/ppc/mmu_common.c | 34 +++++++++-------------------------
 1 file changed, 9 insertions(+), 25 deletions(-)

Patch

diff --git a/target/ppc/mmu_common.c b/target/ppc/mmu_common.c
index 9f177b6976..b13150ce23 100644
--- a/target/ppc/mmu_common.c
+++ b/target/ppc/mmu_common.c
@@ -1172,7 +1172,6 @@  int get_physical_address_wtlb(CPUPPCState *env, mmu_ctx_t *ctx,
                                      MMUAccessType access_type, int type,
                                      int mmu_idx)
 {
-    int ret = -1;
     bool real_mode;
 
     if (env->mmu_model == POWERPC_MMU_BOOKE) {
@@ -1184,38 +1183,23 @@  int get_physical_address_wtlb(CPUPPCState *env, mmu_ctx_t *ctx,
 
     real_mode = (type == ACCESS_CODE) ? !FIELD_EX64(env->msr, MSR, IR)
                                       : !FIELD_EX64(env->msr, MSR, DR);
+    if (real_mode && (env->mmu_model == POWERPC_MMU_SOFT_6xx ||
+                      env->mmu_model == POWERPC_MMU_SOFT_4xx ||
+                      env->mmu_model == POWERPC_MMU_REAL)) {
+        return check_physical(env, ctx, eaddr, access_type);
+    }
 
     switch (env->mmu_model) {
     case POWERPC_MMU_SOFT_6xx:
-        if (real_mode) {
-            ret = check_physical(env, ctx, eaddr, access_type);
-        } else {
-            ret = mmu6xx_get_physical_address(env, ctx, eaddr, access_type,
-                                              type);
-        }
-        break;
-
+        return mmu6xx_get_physical_address(env, ctx, eaddr, access_type, type);
     case POWERPC_MMU_SOFT_4xx:
-        if (real_mode) {
-            ret = check_physical(env, ctx, eaddr, access_type);
-        } else {
-            ret = mmu40x_get_physical_address(env, ctx, eaddr, access_type);
-        }
-        break;
+        return mmu40x_get_physical_address(env, ctx, eaddr, access_type);
     case POWERPC_MMU_REAL:
-        if (real_mode) {
-            ret = check_physical(env, ctx, eaddr, access_type);
-        } else {
-            cpu_abort(env_cpu(env),
-                      "PowerPC in real mode do not do any translation\n");
-        }
-        return -1;
+        cpu_abort(env_cpu(env),
+                  "PowerPC in real mode do not do any translation\n");
     default:
         cpu_abort(env_cpu(env), "Unknown or invalid MMU model\n");
-        return -1;
     }
-
-    return ret;
 }
 
 static void booke206_update_mas_tlb_miss(CPUPPCState *env, target_ulong address,