Add reset callbacks for PowerPC CPU.

Move cpu_ppc_init, cpu_ppc_close, cpu_ppc_reset and ppc_tlb_invalidate
into helper.c as they are to be called from outside of the translated code.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2682 c046a42c-6fe2-441c-8c8c-71466251a162

4 files changed, 83 insertions, 62 deletions

diff --git a/target-ppc/cpu.h b/target-ppc/cpu.h
index 1e309f9..5cd1b60 100644
--- a/target-ppc/cpu.h
+++ b/target-ppc/cpu.h
@@ -860,6 +860,9 @@ void do_store_msr (CPUPPCState *env, target_ulong value);
 void ppc_store_msr_32 (CPUPPCState *env, uint32_t value);
 
 void do_compute_hflags (CPUPPCState *env);
+void cpu_ppc_reset (void *opaque);
+CPUPPCState *cpu_ppc_init (void);
+void cpu_ppc_close(CPUPPCState *env);
 
 int ppc_find_by_name (const unsigned char *name, ppc_def_t **def);
 int ppc_find_by_pvr (uint32_t apvr, ppc_def_t **def);
@@ -883,6 +886,7 @@ target_ulong load_40x_pit (CPUPPCState *env);
 void store_40x_pit (CPUPPCState *env, target_ulong val);
 void store_booke_tcr (CPUPPCState *env, target_ulong val);
 void store_booke_tsr (CPUPPCState *env, target_ulong val);
+void ppc_tlb_invalidate_all (CPUPPCState *env);
 #endif
 #endif
 
diff --git a/target-ppc/helper.c b/target-ppc/helper.c
index 161cc1b..5f46ae0 100644
--- a/target-ppc/helper.c
+++ b/target-ppc/helper.c
@@ -630,6 +630,25 @@ static int get_segment (CPUState *env, mmu_ctx_t *ctx,
     return ret;
 }
 
+void ppc4xx_tlb_invalidate_all (CPUState *env)
+{
+    ppcemb_tlb_t *tlb;
+    int i;
+
+    for (i = 0; i < env->nb_tlb; i++) {
+        tlb = &env->tlb[i].tlbe;
+        if (tlb->prot & PAGE_VALID) {
+#if 0 // XXX: TLB have variable sizes then we flush all Qemu TLB.
+            end = tlb->EPN + tlb->size;
+            for (page = tlb->EPN; page < end; page += TARGET_PAGE_SIZE)
+                tlb_flush_page(env, page);
+#endif
+            tlb->prot &= ~PAGE_VALID;
+        }
+    }
+    tlb_flush(env, 1);
+}
+
 int mmu4xx_get_physical_address (CPUState *env, mmu_ctx_t *ctx,
                                  target_ulong address, int rw, int access_type)
 {
@@ -1105,6 +1124,20 @@ void do_store_dbatl (CPUPPCState *env, int nr, target_ulong value)
     env->DBAT[1][nr] = value;
 }
 
+
+/*****************************************************************************/
+/* TLB management */
+void ppc_tlb_invalidate_all (CPUPPCState *env)
+{
+    if (unlikely(PPC_MMU(env) == PPC_FLAGS_MMU_SOFT_6xx)) {
+        ppc6xx_tlb_invalidate_all(env);
+    } else if (unlikely(PPC_MMU(env) == PPC_FLAGS_MMU_SOFT_4xx)) {
+        ppc4xx_tlb_invalidate_all(env);
+    } else {
+        tlb_flush(env, 1);
+    }
+}
+
 /*****************************************************************************/
 /* Special registers manipulation */
 #if defined(TARGET_PPC64)
@@ -2039,3 +2072,48 @@ void cpu_dump_EA (target_ulong EA)
     fprintf(f, "Memory access at address " TARGET_FMT_lx "\n", EA);
 }
 
+void cpu_ppc_reset (void *opaque)
+{
+    CPUPPCState *env;
+
+    env = opaque;
+#if defined (DO_SINGLE_STEP) && 0
+    /* Single step trace mode */
+    msr_se = 1;
+    msr_be = 1;
+#endif
+    msr_fp = 1; /* Allow floating point exceptions */
+    msr_me = 1; /* Allow machine check exceptions  */
+#if defined(TARGET_PPC64)
+    msr_sf = 0; /* Boot in 32 bits mode */
+    msr_cm = 0;
+#endif
+#if defined(CONFIG_USER_ONLY)
+    msr_pr = 1;
+    tlb_flush(env, 1);
+#else
+    env->nip = 0xFFFFFFFC;
+    ppc_tlb_invalidate_all(env);
+#endif
+    do_compute_hflags(env);
+    env->reserve = -1;
+}
+
+CPUPPCState *cpu_ppc_init (void)
+{
+    CPUPPCState *env;
+
+    env = qemu_mallocz(sizeof(CPUPPCState));
+    if (!env)
+        return NULL;
+    cpu_exec_init(env);
+    cpu_ppc_reset(env);
+
+    return env;
+}
+
+void cpu_ppc_close (CPUPPCState *env)
+{
+    /* Should also remove all opcode tables... */
+    free(env);
+}
diff --git a/target-ppc/op_helper.c b/target-ppc/op_helper.c
index 140b7f5..590b31e 100644
--- a/target-ppc/op_helper.c
+++ b/target-ppc/op_helper.c
@@ -2256,16 +2256,7 @@ void tlb_fill (target_ulong addr, int is_write, int is_user, void *retaddr)
 /* TLB invalidation helpers */
 void do_tlbia (void)
 {
-    if (unlikely(PPC_MMU(env) == PPC_FLAGS_MMU_SOFT_6xx)) {
-        ppc6xx_tlb_invalidate_all(env);
-    } else if (unlikely(PPC_MMU(env) == PPC_FLAGS_MMU_SOFT_4xx)) {
-        /* XXX: TODO */
-#if 0
-        ppcbooke_tlb_invalidate_all(env);
-#endif
-    } else {
-        tlb_flush(env, 1);
-    }
+    ppc_tlb_invalidate_all(env);
 }
 
 void do_tlbie (void)
@@ -2473,25 +2464,6 @@ static int booke_page_size_to_tlb (target_ulong page_size)
 }
 
 /* Helpers for 4xx TLB management */
-void do_4xx_tlbia (void)
-{
-    ppcemb_tlb_t *tlb;
-    int i;
-
-    for (i = 0; i < 64; i++) {
-        tlb = &env->tlb[i].tlbe;
-        if (tlb->prot & PAGE_VALID) {
-#if 0
-            end = tlb->EPN + tlb->size;
-            for (page = tlb->EPN; page < end; page += TARGET_PAGE_SIZE)
-                tlb_flush_page(env, page);
-#endif
-            tlb->prot &= ~PAGE_VALID;
-        }
-    }
-    tlb_flush(env, 1);
-}
-
 void do_4xx_tlbre_lo (void)
 {
     ppcemb_tlb_t *tlb;
diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
index 0185123..ab8d869 100644
--- a/target-ppc/translate_init.c
+++ b/target-ppc/translate_init.c
@@ -2713,39 +2713,6 @@ int cpu_ppc_register (CPUPPCState *env, ppc_def_t *def)
     return 0;
 }
 
-void do_compute_hflags (CPUPPCState *env);
-CPUPPCState *cpu_ppc_init (void)
-{
-    CPUPPCState *env;
-
-    env = qemu_mallocz(sizeof(CPUPPCState));
-    if (!env)
-        return NULL;
-    cpu_exec_init(env);
-    tlb_flush(env, 1);
-#if defined (DO_SINGLE_STEP) && 0
-    /* Single step trace mode */
-    msr_se = 1;
-    msr_be = 1;
-#endif
-    msr_fp = 1; /* Allow floating point exceptions */
-    msr_me = 1; /* Allow machine check exceptions  */
-#if defined(CONFIG_USER_ONLY)
-    msr_pr = 1;
-#else
-    env->nip = 0xFFFFFFFC;
-#endif
-    do_compute_hflags(env);
-    env->reserve = -1;
-    return env;
-}
-
-void cpu_ppc_close(CPUPPCState *env)
-{
-    /* Should also remove all opcode tables... */
-    free(env);
-}
-
 /*****************************************************************************/
 /* PowerPC CPU definitions */
 static ppc_def_t ppc_defs[] =