target-ppc: Move ppc tlb_fill implementation into mmu_helper.c

For softmmu builds the interface from the generic code to the target
specific MMU implementation is through the tlb_fill() function.  For ppc
this is currently in mem_helper.c, whereas it would make more sense in
mmu_helper.c.  This patch moves it, which also allows
cpu_ppc_handle_mmu_fault() to become a local function in mmu_helper.c

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>

target-ppc/cpu.h

@@ -1090,8 +1090,6 @@ int cpu_ppc_exec (CPUPPCState *s);
    is returned if the signal was handled by the virtual CPU.  */
 int cpu_ppc_signal_handler (int host_signum, void *pinfo,
                             void *puc);
-int cpu_ppc_handle_mmu_fault (CPUPPCState *env, target_ulong address, int rw,
-                              int mmu_idx);
 void ppc_hw_interrupt (CPUPPCState *env);
 #if defined(CONFIG_USER_ONLY)
 int cpu_handle_mmu_fault(CPUPPCState *env, target_ulong address, int rw,

target-ppc/mem_helper.c

@@ -252,41 +252,3 @@ STVE(stvewx, cpu_stl_data, bswap32, u32)
 
 #undef HI_IDX
 #undef LO_IDX
-
-/*****************************************************************************/
-/* Softmmu support */
-#if !defined(CONFIG_USER_ONLY)
-
-#define MMUSUFFIX _mmu
-
-#define SHIFT 0
-#include "exec/softmmu_template.h"
-
-#define SHIFT 1
-#include "exec/softmmu_template.h"
-
-#define SHIFT 2
-#include "exec/softmmu_template.h"
-
-#define SHIFT 3
-#include "exec/softmmu_template.h"
-
-/* try to fill the TLB and return an exception if error. If retaddr is
-   NULL, it means that the function was called in C code (i.e. not
-   from generated code or from helper.c) */
-/* XXX: fix it to restore all registers */
-void tlb_fill(CPUPPCState *env, target_ulong addr, int is_write, int mmu_idx,
-              uintptr_t retaddr)
-{
-    int ret;
-
-    ret = cpu_ppc_handle_mmu_fault(env, addr, is_write, mmu_idx);
-    if (unlikely(ret != 0)) {
-        if (likely(retaddr)) {
-            /* now we have a real cpu fault */
-            cpu_restore_state(env, retaddr);
-        }
-        helper_raise_exception_err(env, env->exception_index, env->error_code);
-    }
-}
-#endif /* !CONFIG_USER_ONLY */

target-ppc/mmu_helper.c

@@ -1384,8 +1384,8 @@ static void booke206_update_mas_tlb_miss(CPUPPCState *env, target_ulong address,
 }
 
 /* Perform address translation */
-int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, int rw,
-                             int mmu_idx)
+static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address,
+                                    int rw, int mmu_idx)
 {
     mmu_ctx_t ctx;
     int access_type;
@@ -2777,3 +2777,39 @@ void helper_booke206_tlbflush(CPUPPCState *env, uint32_t type)
 
     booke206_flush_tlb(env, flags, 1);
 }
+
+
+/*****************************************************************************/
+
+#define MMUSUFFIX _mmu
+
+#define SHIFT 0
+#include "exec/softmmu_template.h"
+
+#define SHIFT 1
+#include "exec/softmmu_template.h"
+
+#define SHIFT 2
+#include "exec/softmmu_template.h"
+
+#define SHIFT 3
+#include "exec/softmmu_template.h"
+
+/* try to fill the TLB and return an exception if error. If retaddr is
+   NULL, it means that the function was called in C code (i.e. not
+   from generated code or from helper.c) */
+/* XXX: fix it to restore all registers */
+void tlb_fill(CPUPPCState *env, target_ulong addr, int is_write, int mmu_idx,
+              uintptr_t retaddr)
+{
+    int ret;
+
+    ret = cpu_ppc_handle_mmu_fault(env, addr, is_write, mmu_idx);
+    if (unlikely(ret != 0)) {
+        if (likely(retaddr)) {
+            /* now we have a real cpu fault */
+            cpu_restore_state(env, retaddr);
+        }
+        helper_raise_exception_err(env, env->exception_index, env->error_code);
+    }
+}