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Diffstat (limited to 'target-sh4')
-rw-r--r--target-sh4/helper.c27
1 files changed, 6 insertions, 21 deletions
diff --git a/target-sh4/helper.c b/target-sh4/helper.c
index 0a2a90e490..f38e6abdaf 100644
--- a/target-sh4/helper.c
+++ b/target-sh4/helper.c
@@ -272,16 +272,6 @@ static int find_tlb_entry(CPUState * env, target_ulong address,
return match;
}
-static int same_tlb_entry_exists(const tlb_t * haystack, uint8_t nbtlb,
- const tlb_t * needle)
-{
- int i;
- for (i = 0; i < nbtlb; i++)
- if (!memcmp(&haystack[i], needle, sizeof(tlb_t)))
- return 1;
- return 0;
-}
-
static void increment_urc(CPUState * env)
{
uint8_t urb, urc;
@@ -314,8 +304,7 @@ static int find_itlb_entry(CPUState * env, target_ulong address,
n = itlb_replacement(env);
ientry = &env->itlb[n];
if (ientry->v) {
- if (!same_tlb_entry_exists(env->utlb, UTLB_SIZE, ientry))
- tlb_flush_page(env, ientry->vpn << 10);
+ tlb_flush_page(env, ientry->vpn << 10);
}
*ientry = env->utlb[e];
e = n;
@@ -362,7 +351,7 @@ static int get_mmu_address(CPUState * env, target_ulong * physical,
if (!(env->sr & SR_MD) && !(matching->pr & 2))
n = MMU_ITLB_VIOLATION;
else
- *prot = PAGE_READ;
+ *prot = PAGE_EXEC;
}
} else {
n = find_utlb_entry(env, address, use_asid);
@@ -418,14 +407,14 @@ static int get_physical_address(CPUState * env, target_ulong * physical,
} else {
*physical = address;
}
- *prot = PAGE_READ | PAGE_WRITE;
+ *prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC;
return MMU_OK;
}
/* If MMU is disabled, return the corresponding physical page */
if (!env->mmucr & MMUCR_AT) {
*physical = address & 0x1FFFFFFF;
- *prot = PAGE_READ | PAGE_WRITE;
+ *prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC;
return MMU_OK;
}
@@ -506,9 +495,7 @@ void cpu_load_tlb(CPUSH4State * env)
if (entry->v) {
/* Overwriting valid entry in utlb. */
target_ulong address = entry->vpn << 10;
- if (!same_tlb_entry_exists(env->itlb, ITLB_SIZE, entry)) {
- tlb_flush_page(env, address);
- }
+ tlb_flush_page(env, address);
}
/* Take values into cpu status from registers. */
@@ -623,9 +610,7 @@ void cpu_sh4_write_mmaped_utlb_addr(CPUSH4State *s, target_phys_addr_t addr,
if (entry->v) {
/* Overwriting valid entry in utlb. */
target_ulong address = entry->vpn << 10;
- if (!same_tlb_entry_exists(s->itlb, ITLB_SIZE, entry)) {
- tlb_flush_page(s, address);
- }
+ tlb_flush_page(s, address);
}
entry->asid = asid;
entry->vpn = vpn;