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authorPhilippe Mathieu-Daudé <f4bug@amsat.org>2021-01-28 01:32:22 +0100
committerEdgar E. Iglesias <edgar.iglesias@xilinx.com>2021-02-22 09:04:58 +0100
commitc0ff662fabb9bbf79c6518d34f6163567aa4ab44 (patch)
tree3583dbbe6a89f6ee1ecb8125902db3bfc504e181
parent00d8ba9e0d62ea1c7459c25aeabf9c8bb7659462 (diff)
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target/cris: Use MMUAccessType enum type when possible
Replace the 0/1/2 magic values by the corresponding MMUAccessType. We can remove a comment as enum names are self explicit. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Message-Id: <20210128003223.3561108-2-f4bug@amsat.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
-rw-r--r--target/cris/helper.c4
-rw-r--r--target/cris/mmu.c13
2 files changed, 8 insertions, 9 deletions
diff --git a/target/cris/helper.c b/target/cris/helper.c
index 7e3bb58..911867f 100644
--- a/target/cris/helper.c
+++ b/target/cris/helper.c
@@ -275,10 +275,10 @@ hwaddr cris_cpu_get_phys_page_debug(CPUState *cs, vaddr addr)
struct cris_mmu_result res;
int miss;
- miss = cris_mmu_translate(&res, &cpu->env, addr, 0, 0, 1);
+ miss = cris_mmu_translate(&res, &cpu->env, addr, MMU_DATA_LOAD, 0, 1);
/* If D TLB misses, try I TLB. */
if (miss) {
- miss = cris_mmu_translate(&res, &cpu->env, addr, 2, 0, 1);
+ miss = cris_mmu_translate(&res, &cpu->env, addr, MMU_INST_FETCH, 0, 1);
}
if (!miss) {
diff --git a/target/cris/mmu.c b/target/cris/mmu.c
index a279b7f..294de7d 100644
--- a/target/cris/mmu.c
+++ b/target/cris/mmu.c
@@ -152,15 +152,15 @@ static int cris_mmu_translate_page(struct cris_mmu_result *res,
pid = env->pregs[PR_PID] & 0xff;
switch (rw) {
- case 2:
+ case MMU_INST_FETCH:
rwcause = CRIS_MMU_ERR_EXEC;
mmu = 0;
break;
- case 1:
+ case MMU_DATA_STORE:
rwcause = CRIS_MMU_ERR_WRITE;
break;
default:
- case 0:
+ case MMU_DATA_LOAD:
rwcause = CRIS_MMU_ERR_READ;
break;
}
@@ -219,13 +219,13 @@ static int cris_mmu_translate_page(struct cris_mmu_result *res,
vaddr, lo, env->pc));
match = 0;
res->bf_vec = vect_base + 2;
- } else if (rw == 1 && cfg_w && !tlb_w) {
+ } else if (rw == MMU_DATA_STORE && cfg_w && !tlb_w) {
D(printf("tlb: write protected %x lo=%x pc=%x\n",
vaddr, lo, env->pc));
match = 0;
/* write accesses never go through the I mmu. */
res->bf_vec = vect_base + 3;
- } else if (rw == 2 && cfg_x && !tlb_x) {
+ } else if (rw == MMU_INST_FETCH && cfg_x && !tlb_x) {
D(printf("tlb: exec protected %x lo=%x pc=%x\n",
vaddr, lo, env->pc));
match = 0;
@@ -329,8 +329,7 @@ int cris_mmu_translate(struct cris_mmu_result *res,
old_srs = env->pregs[PR_SRS];
- /* rw == 2 means exec, map the access to the insn mmu. */
- env->pregs[PR_SRS] = rw == 2 ? 1 : 2;
+ env->pregs[PR_SRS] = rw == MMU_INST_FETCH ? 1 : 2;
if (!cris_mmu_enabled(env->sregs[SFR_RW_GC_CFG])) {
res->phy = vaddr;