target/s390x: Use cpu_*_mmu instead of helper_*_mmu

The helper_*_mmu functions were the only thing available
when this code was written.  This could have been adjusted
when we added cpu_*_mmuidx_ra, but now we can most easily
use the newest set of interfaces.

Reviewed-by: David Hildenbrand <[email protected]>
Reviewed-by: Philippe Mathieu-Daudé <[email protected]>
Signed-off-by: Richard Henderson <[email protected]>

Author: rth7680

target/s390x/tcg/mem_helper.c

@@ -249,13 +249,13 @@ static void do_access_memset(CPUS390XState *env, vaddr vaddr, char *haddr,
          * page. This is especially relevant to speed up TLB_NOTDIRTY.
          */
         g_assert(size > 0);
-        helper_ret_stb_mmu(env, vaddr, byte, oi, ra);
+        cpu_stb_mmu(env, vaddr, byte, oi, ra);
         haddr = tlb_vaddr_to_host(env, vaddr, MMU_DATA_STORE, mmu_idx);
         if (likely(haddr)) {
             memset(haddr + 1, byte, size - 1);
         } else {
             for (i = 1; i < size; i++) {
-                helper_ret_stb_mmu(env, vaddr + i, byte, oi, ra);
+                cpu_stb_mmu(env, vaddr + i, byte, oi, ra);
             }
         }
     }
@@ -291,7 +291,7 @@ static uint8_t do_access_get_byte(CPUS390XState *env, vaddr vaddr, char **haddr,
      * Do a single access and test if we can then get access to the
      * page. This is especially relevant to speed up TLB_NOTDIRTY.
      */
-    byte = helper_ret_ldub_mmu(env, vaddr + offset, oi, ra);
+    byte = cpu_ldb_mmu(env, vaddr + offset, oi, ra);
     *haddr = tlb_vaddr_to_host(env, vaddr, MMU_DATA_LOAD, mmu_idx);
     return byte;
 #endif
@@ -325,7 +325,7 @@ static void do_access_set_byte(CPUS390XState *env, vaddr vaddr, char **haddr,
      * Do a single access and test if we can then get access to the
      * page. This is especially relevant to speed up TLB_NOTDIRTY.
      */
-    helper_ret_stb_mmu(env, vaddr + offset, byte, oi, ra);
+    cpu_stb_mmu(env, vaddr + offset, byte, oi, ra);
     *haddr = tlb_vaddr_to_host(env, vaddr, MMU_DATA_STORE, mmu_idx);
 #endif
 }