target/microblaze: Use env_cpu, env_archcpu

Cleanup in the boilerplate that each target must define.
Replace mb_env_get_cpu with env_archcpu.  The combination
CPU(mb_env_get_cpu) should have used ENV_GET_CPU to begin;
use env_cpu now.

Move cpu_mmu_index below the include of "exec/cpu-all.h",
so that the definition of env_archcpu is available.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

linux-user/microblaze/cpu_loop.c

@@ -23,7 +23,7 @@
 
 void cpu_loop(CPUMBState *env)
 {
-    CPUState *cs = CPU(mb_env_get_cpu(env));
+    CPUState *cs = env_cpu(env);
     int trapnr, ret;
     target_siginfo_t info;
 

target/microblaze/cpu.h

@@ -310,11 +310,6 @@ struct MicroBlazeCPU {
     CPUMBState env;
 };
 
-static inline MicroBlazeCPU *mb_env_get_cpu(CPUMBState *env)
-{
-    return container_of(env, MicroBlazeCPU, env);
-}
-
 #define ENV_OFFSET offsetof(MicroBlazeCPU, env)
 
 void mb_cpu_do_interrupt(CPUState *cs);
@@ -344,21 +339,6 @@ int cpu_mb_signal_handler(int host_signum, void *pinfo,
 #define MMU_USER_IDX    2
 /* See NB_MMU_MODES further up the file.  */
 
-static inline int cpu_mmu_index (CPUMBState *env, bool ifetch)
-{
-    MicroBlazeCPU *cpu = mb_env_get_cpu(env);
-
-    /* Are we in nommu mode?.  */
-    if (!(env->sregs[SR_MSR] & MSR_VM) || !cpu->cfg.use_mmu) {
-        return MMU_NOMMU_IDX;
-    }
-
-    if (env->sregs[SR_MSR] & MSR_UM) {
-        return MMU_USER_IDX;
-    }
-    return MMU_KERNEL_IDX;
-}
-
 bool mb_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
                      MMUAccessType access_type, int mmu_idx,
                      bool probe, uintptr_t retaddr);
@@ -384,4 +364,19 @@ void mb_cpu_transaction_failed(CPUState *cs, hwaddr physaddr, vaddr addr,
                                MemTxResult response, uintptr_t retaddr);
 #endif
 
+static inline int cpu_mmu_index(CPUMBState *env, bool ifetch)
+{
+    MicroBlazeCPU *cpu = env_archcpu(env);
+
+    /* Are we in nommu mode?.  */
+    if (!(env->sregs[SR_MSR] & MSR_VM) || !cpu->cfg.use_mmu) {
+        return MMU_NOMMU_IDX;
+    }
+
+    if (env->sregs[SR_MSR] & MSR_UM) {
+        return MMU_USER_IDX;
+    }
+    return MMU_KERNEL_IDX;
+}
+
 #endif

target/microblaze/mmu.c

@@ -34,7 +34,7 @@ static unsigned int tlb_decode_size(unsigned int f)
 
 static void mmu_flush_idx(CPUMBState *env, unsigned int idx)
 {
-    CPUState *cs = CPU(mb_env_get_cpu(env));
+    CPUState *cs = env_cpu(env);
     struct microblaze_mmu *mmu = &env->mmu;
     unsigned int tlb_size;
     uint32_t tlb_tag, end, t;
@@ -228,7 +228,6 @@ uint32_t mmu_read(CPUMBState *env, bool ext, uint32_t rn)
 
 void mmu_write(CPUMBState *env, bool ext, uint32_t rn, uint32_t v)
 {
-    MicroBlazeCPU *cpu = mb_env_get_cpu(env);
     uint64_t tmp64;
     unsigned int i;
     qemu_log_mask(CPU_LOG_MMU,
@@ -269,7 +268,7 @@ void mmu_write(CPUMBState *env, bool ext, uint32_t rn, uint32_t v)
             /* Changes to the zone protection reg flush the QEMU TLB.
                Fortunately, these are very uncommon.  */
             if (v != env->mmu.regs[rn]) {
-                tlb_flush(CPU(cpu));
+                tlb_flush(env_cpu(env));
             }
             env->mmu.regs[rn] = v;
             break;

target/microblaze/op_helper.c

@@ -65,7 +65,7 @@ uint32_t helper_get(uint32_t id, uint32_t ctrl)
 
 void helper_raise_exception(CPUMBState *env, uint32_t index)
 {
-    CPUState *cs = CPU(mb_env_get_cpu(env));
+    CPUState *cs = env_cpu(env);
 
     cs->exception_index = index;
     cpu_loop_exit(cs);

target/microblaze/translate.c

@@ -1604,7 +1604,7 @@ static inline void decode(DisasContext *dc, uint32_t ir)
 void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int max_insns)
 {
     CPUMBState *env = cs->env_ptr;
-    MicroBlazeCPU *cpu = mb_env_get_cpu(env);
+    MicroBlazeCPU *cpu = env_archcpu(env);
     uint32_t pc_start;
     struct DisasContext ctx;
     struct DisasContext *dc = &ctx;