target/sh4: Replace magic value by MMUAccessType definitions

Replace the 0/1/2 magic values by the corresponding MMUAccessType.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210127232151.3523581-3-f4bug@amsat.org>

diff --git a/target/sh4/helper.c b/target/sh4/helper.c
index fc816137766c5fc3499cfbec7c085dccd9258aa7..4303ebf018bf5115eb3da4108048aa48889907cd 100644 (file)
--- a/target/sh4/helper.c
+++ b/target/sh4/helper.c
@@ -338,7 +338,7 @@ static int get_mmu_address(CPUSH4State * env, target_ulong * physical,
 
     use_asid = !(env->mmucr & MMUCR_SV) || !(env->sr & (1u << SR_MD));
 
-    if (rw == 2) {
+    if (rw == MMU_INST_FETCH) {
         n = find_itlb_entry(env, address, use_asid);
         if (n >= 0) {
             matching = &env->itlb[n];
@@ -371,11 +371,11 @@ static int get_mmu_address(CPUSH4State * env, target_ulong * physical,
         if (n >= 0) {
             matching = &env->utlb[n];
             if (!(env->sr & (1u << SR_MD)) && !(matching->pr & 2)) {
-                n = (rw == 1)
+                n = (rw == MMU_DATA_STORE)
                     ? MMU_DTLB_VIOLATION_WRITE : MMU_DTLB_VIOLATION_READ;
-            } else if ((rw == 1) && !(matching->pr & 1)) {
+            } else if ((rw == MMU_DATA_STORE) && !(matching->pr & 1)) {
                 n = MMU_DTLB_VIOLATION_WRITE;
-            } else if ((rw == 1) && !matching->d) {
+            } else if ((rw == MMU_DATA_STORE) && !matching->d) {
                 n = MMU_DTLB_INITIAL_WRITE;
             } else {
                 *prot = PAGE_READ;
@@ -384,7 +384,7 @@ static int get_mmu_address(CPUSH4State * env, target_ulong * physical,
                 }
             }
         } else if (n == MMU_DTLB_MISS) {
-            n = (rw == 1)
+            n = (rw == MMU_DATA_STORE)
                 ? MMU_DTLB_MISS_WRITE : MMU_DTLB_MISS_READ;
         }
     }
@@ -406,9 +406,9 @@ static int get_physical_address(CPUSH4State * env, target_ulong * physical,
                 && (address < 0xe0000000 || address >= 0xe4000000)) {
             /* Unauthorized access in user mode (only store queues are available) */
             qemu_log_mask(LOG_GUEST_ERROR, "Unauthorized access\n");
-            if (rw == 0) {
+            if (rw == MMU_DATA_LOAD) {
                 return MMU_DADDR_ERROR_READ;
-            } else if (rw == 1) {
+            } else if (rw == MMU_DATA_STORE) {
                 return MMU_DADDR_ERROR_WRITE;
             } else {
                 return MMU_IADDR_ERROR;
@@ -441,7 +441,7 @@ hwaddr superh_cpu_get_phys_page_debug(CPUState *cs, vaddr addr)
     target_ulong physical;
     int prot;
 
-    get_physical_address(&cpu->env, &physical, &prot, addr, 0, 0);
+    get_physical_address(&cpu->env, &physical, &prot, addr, MMU_DATA_LOAD, 0);
     return physical;
 }