Define Freescale cores specific MMU model, exceptions and input bus.

  (but do not provide any actual implementation).


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3680 c046a42c-6fe2-441c-8c8c-71466251a162

3 files changed, 109 insertions, 36 deletions

diff --git a/target-ppc/cpu.h b/target-ppc/cpu.h
index b0b41afd54..a80101c021 100644
--- a/target-ppc/cpu.h
+++ b/target-ppc/cpu.h
@@ -104,8 +104,10 @@ enum powerpc_mmu_t {
     POWERPC_MMU_SOFT_4xx,
     /* PowerPC 4xx MMU with software TLB and zones protections */
     POWERPC_MMU_SOFT_4xx_Z,
-    /* PowerPC 4xx MMU in real mode only                       */
-    POWERPC_MMU_REAL_4xx,
+    /* PowerPC MMU in real mode only                           */
+    POWERPC_MMU_REAL,
+    /* Freescale MPC8xx MMU model                              */
+    POWERPC_MMU_MPC8xx,
     /* BookE MMU model                                         */
     POWERPC_MMU_BOOKE,
     /* BookE FSL MMU model                                     */
@@ -171,8 +173,8 @@ enum {
     POWERPC_EXCP_DECR     = 10, /* Decrementer exception                     */
     POWERPC_EXCP_FIT      = 11, /* Fixed-interval timer interrupt            */
     POWERPC_EXCP_WDT      = 12, /* Watchdog timer interrupt                  */
-    POWERPC_EXCP_DTLB     = 13, /* Data TLB error                            */
-    POWERPC_EXCP_ITLB     = 14, /* Instruction TLB error                     */
+    POWERPC_EXCP_DTLB     = 13, /* Data TLB miss                             */
+    POWERPC_EXCP_ITLB     = 14, /* Instruction TLB miss                      */
     POWERPC_EXCP_DEBUG    = 15, /* Debug interrupt                           */
     /* Vectors 16 to 31 are reserved                                         */
     POWERPC_EXCP_SPEU     = 32, /* SPE/embedded floating-point unavailable   */
@@ -201,21 +203,27 @@ enum {
     /* 602 specific exceptions                                               */
     POWERPC_EXCP_EMUL     = 77, /* Emulation trap exception                  */
     /* 602/603 specific exceptions                                           */
-    POWERPC_EXCP_IFTLB    = 78, /* Instruction fetch TLB error               */
+    POWERPC_EXCP_IFTLB    = 78, /* Instruction fetch TLB miss                */
     POWERPC_EXCP_DLTLB    = 79, /* Data load TLB miss                        */
     POWERPC_EXCP_DSTLB    = 80, /* Data store TLB miss                       */
     /* Exceptions available on most PowerPC                                  */
     POWERPC_EXCP_FPA      = 81, /* Floating-point assist exception           */
-    POWERPC_EXCP_IABR     = 82, /* Instruction address breakpoint            */
-    POWERPC_EXCP_SMI      = 83, /* System management interrupt               */
-    POWERPC_EXCP_PERFM    = 84, /* Embedded performance monitor interrupt    */
+    POWERPC_EXCP_DABR     = 82, /* Data address breakpoint                   */
+    POWERPC_EXCP_IABR     = 83, /* Instruction address breakpoint            */
+    POWERPC_EXCP_SMI      = 84, /* System management interrupt               */
+    POWERPC_EXCP_PERFM    = 85, /* Embedded performance monitor interrupt    */
     /* 7xx/74xx specific exceptions                                          */
-    POWERPC_EXCP_THERM    = 85, /* Thermal interrupt                         */
+    POWERPC_EXCP_THERM    = 86, /* Thermal interrupt                         */
     /* 74xx specific exceptions                                              */
-    POWERPC_EXCP_VPUA     = 86, /* Vector assist exception                   */
+    POWERPC_EXCP_VPUA     = 87, /* Vector assist exception                   */
     /* 970FX specific exceptions                                             */
-    POWERPC_EXCP_SOFTP    = 87, /* Soft patch exception                      */
-    POWERPC_EXCP_MAINT    = 88, /* Maintenance exception                     */
+    POWERPC_EXCP_SOFTP    = 88, /* Soft patch exception                      */
+    POWERPC_EXCP_MAINT    = 89, /* Maintenance exception                     */
+    /* Freescale embeded cores specific exceptions                           */
+    POWERPC_EXCP_MEXTBR   = 90, /* Maskable external breakpoint              */
+    POWERPC_EXCP_NMEXTBR  = 91, /* Non maskable external breakpoint          */
+    POWERPC_EXCP_ITLBE    = 92, /* Instruction TLB error                     */
+    POWERPC_EXCP_DTLBE    = 93, /* Data TLB error                            */
     /* EOL                                                                   */
     POWERPC_EXCP_NB       = 96,
     /* Qemu exceptions: used internally during code translation              */
@@ -280,6 +288,8 @@ enum powerpc_input_t {
     PPC_FLAGS_INPUT_970,
     /* PowerPC 401 bus                  */
     PPC_FLAGS_INPUT_401,
+    /* Freescale RCPU bus               */
+    PPC_FLAGS_INPUT_RCPU,
 };
 
 #define PPC_INPUT(env) (env->bus_model)
@@ -1259,6 +1269,22 @@ enum {
     PPC40x_INPUT_NB,
 };
 
+enum {
+    /* RCPU input pins */
+    PPCRCPU_INPUT_PORESET   = 0,
+    PPCRCPU_INPUT_HRESET    = 1,
+    PPCRCPU_INPUT_SRESET    = 2,
+    PPCRCPU_INPUT_IRQ0      = 3,
+    PPCRCPU_INPUT_IRQ1      = 4,
+    PPCRCPU_INPUT_IRQ2      = 5,
+    PPCRCPU_INPUT_IRQ3      = 6,
+    PPCRCPU_INPUT_IRQ4      = 7,
+    PPCRCPU_INPUT_IRQ5      = 8,
+    PPCRCPU_INPUT_IRQ6      = 9,
+    PPCRCPU_INPUT_IRQ7      = 10,
+    PPCRCPU_INPUT_NB,
+};
+
 #if defined(TARGET_PPC64)
 enum {
     /* PowerPC 970 input pins */
diff --git a/target-ppc/helper.c b/target-ppc/helper.c
index 854526dad4..b4c38395f5 100644
--- a/target-ppc/helper.c
+++ b/target-ppc/helper.c
@@ -1357,7 +1357,7 @@ static always_inline int check_physical (CPUState *env, mmu_ctx_t *ctx,
     case POWERPC_MMU_SOFT_6xx:
     case POWERPC_MMU_SOFT_74xx:
     case POWERPC_MMU_SOFT_4xx:
-    case POWERPC_MMU_REAL_4xx:
+    case POWERPC_MMU_REAL:
     case POWERPC_MMU_BOOKE:
         ctx->prot |= PAGE_WRITE;
         break;
@@ -1392,6 +1392,10 @@ static always_inline int check_physical (CPUState *env, mmu_ctx_t *ctx,
             }
         }
         break;
+    case POWERPC_MMU_MPC8xx:
+        /* XXX: TODO */
+        cpu_abort(env, "MPC8xx MMU model is not implemented\n");
+        break;
     case POWERPC_MMU_BOOKE_FSL:
         /* XXX: TODO */
         cpu_abort(env, "BookE FSL MMU model not implemented\n");
@@ -1445,12 +1449,16 @@ int get_physical_address (CPUState *env, mmu_ctx_t *ctx, target_ulong eaddr,
             ret = mmubooke_get_physical_address(env, ctx, eaddr,
                                                 rw, access_type);
             break;
+        case POWERPC_MMU_MPC8xx:
+            /* XXX: TODO */
+            cpu_abort(env, "MPC8xx MMU model is not implemented\n");
+            break;
         case POWERPC_MMU_BOOKE_FSL:
             /* XXX: TODO */
             cpu_abort(env, "BookE FSL MMU model not implemented\n");
             return -1;
-        case POWERPC_MMU_REAL_4xx:
-            cpu_abort(env, "PowerPC 401 does not do any translation\n");
+        case POWERPC_MMU_REAL:
+            cpu_abort(env, "PowerPC in real mode do not do any translation\n");
             return -1;
         default:
             cpu_abort(env, "Unknown or invalid MMU model\n");
@@ -1537,15 +1545,19 @@ int cpu_ppc_handle_mmu_fault (CPUState *env, target_ulong address, int rw,
                     break;
                 case POWERPC_MMU_BOOKE:
                     /* XXX: TODO */
-                    cpu_abort(env, "MMU model not implemented\n");
+                    cpu_abort(env, "BookE MMU model is not implemented\n");
                     return -1;
                 case POWERPC_MMU_BOOKE_FSL:
                     /* XXX: TODO */
-                    cpu_abort(env, "MMU model not implemented\n");
+                    cpu_abort(env, "BookE FSL MMU model is not implemented\n");
                     return -1;
-                case POWERPC_MMU_REAL_4xx:
-                    cpu_abort(env, "PowerPC 401 should never raise any MMU "
-                              "exceptions\n");
+                case POWERPC_MMU_MPC8xx:
+                    /* XXX: TODO */
+                    cpu_abort(env, "MPC8xx MMU model is not implemented\n");
+                    break;
+                case POWERPC_MMU_REAL:
+                    cpu_abort(env, "PowerPC in real mode should never raise "
+                              "any MMU exceptions\n");
                     return -1;
                 default:
                     cpu_abort(env, "Unknown or invalid MMU model\n");
@@ -1632,17 +1644,21 @@ int cpu_ppc_handle_mmu_fault (CPUState *env, target_ulong address, int rw,
                     else
                         env->spr[SPR_DSISR] = 0x40000000;
                     break;
+                case POWERPC_MMU_MPC8xx:
+                    /* XXX: TODO */
+                    cpu_abort(env, "MPC8xx MMU model is not implemented\n");
+                    break;
                 case POWERPC_MMU_BOOKE:
                     /* XXX: TODO */
-                    cpu_abort(env, "MMU model not implemented\n");
+                    cpu_abort(env, "BookE MMU model is not implemented\n");
                     return -1;
                 case POWERPC_MMU_BOOKE_FSL:
                     /* XXX: TODO */
-                    cpu_abort(env, "MMU model not implemented\n");
+                    cpu_abort(env, "BookE FSL MMU model is not implemented\n");
                     return -1;
-                case POWERPC_MMU_REAL_4xx:
-                    cpu_abort(env, "PowerPC 401 should never raise any MMU "
-                              "exceptions\n");
+                case POWERPC_MMU_REAL:
+                    cpu_abort(env, "PowerPC in real mode should never raise "
+                              "any MMU exceptions\n");
                     return -1;
                 default:
                     cpu_abort(env, "Unknown or invalid MMU model\n");
@@ -1921,16 +1937,20 @@ void ppc_tlb_invalidate_all (CPUPPCState *env)
     case POWERPC_MMU_SOFT_4xx_Z:
         ppc4xx_tlb_invalidate_all(env);
         break;
-    case POWERPC_MMU_REAL_4xx:
+    case POWERPC_MMU_REAL:
         cpu_abort(env, "No TLB for PowerPC 4xx in real mode\n");
         break;
+    case POWERPC_MMU_MPC8xx:
+        /* XXX: TODO */
+        cpu_abort(env, "MPC8xx MMU model is not implemented\n");
+        break;
     case POWERPC_MMU_BOOKE:
         /* XXX: TODO */
-        cpu_abort(env, "MMU model not implemented\n");
+        cpu_abort(env, "BookE MMU model is not implemented\n");
         break;
     case POWERPC_MMU_BOOKE_FSL:
         /* XXX: TODO */
-        cpu_abort(env, "MMU model not implemented\n");
+        cpu_abort(env, "BookE MMU model is not implemented\n");
         break;
     case POWERPC_MMU_32B:
     case POWERPC_MMU_601:
@@ -1961,16 +1981,20 @@ void ppc_tlb_invalidate_one (CPUPPCState *env, target_ulong addr)
     case POWERPC_MMU_SOFT_4xx_Z:
         ppc4xx_tlb_invalidate_virt(env, addr, env->spr[SPR_40x_PID]);
         break;
-    case POWERPC_MMU_REAL_4xx:
+    case POWERPC_MMU_REAL:
         cpu_abort(env, "No TLB for PowerPC 4xx in real mode\n");
         break;
+    case POWERPC_MMU_MPC8xx:
+        /* XXX: TODO */
+        cpu_abort(env, "MPC8xx MMU model is not implemented\n");
+        break;
     case POWERPC_MMU_BOOKE:
         /* XXX: TODO */
-        cpu_abort(env, "MMU model not implemented\n");
+        cpu_abort(env, "BookE MMU model is not implemented\n");
         break;
     case POWERPC_MMU_BOOKE_FSL:
         /* XXX: TODO */
-        cpu_abort(env, "MMU model not implemented\n");
+        cpu_abort(env, "BookE FSL MMU model is not implemented\n");
         break;
     case POWERPC_MMU_32B:
     case POWERPC_MMU_601:
@@ -2613,6 +2637,10 @@ static always_inline void powerpc_excp (CPUState *env,
         cpu_abort(env, "Floating point assist exception "
                   "is not implemented yet !\n");
         goto store_next;
+    case POWERPC_EXCP_DABR:      /* Data address breakpoint                  */
+        /* XXX: TODO */
+        cpu_abort(env, "DABR exception is not implemented yet !\n");
+        goto store_next;
     case POWERPC_EXCP_IABR:      /* Instruction address breakpoint           */
         /* XXX: TODO */
         cpu_abort(env, "IABR exception is not implemented yet !\n");
@@ -2648,6 +2676,16 @@ static always_inline void powerpc_excp (CPUState *env,
         cpu_abort(env,
                   "970 maintenance exception is not implemented yet !\n");
         goto store_next;
+    case POWERPC_EXCP_MEXTBR:    /* Maskable external breakpoint             */
+        /* XXX: TODO */
+        cpu_abort(env, "Maskable external exception "
+                  "is not implemented yet !\n");
+        goto store_next;
+    case POWERPC_EXCP_NMEXTBR:   /* Non maskable external breakpoint         */
+        /* XXX: TODO */
+        cpu_abort(env, "Non maskable external exception "
+                  "is not implemented yet !\n");
+        goto store_next;
     default:
     excp_invalid:
         cpu_abort(env, "Invalid PowerPC exception %d. Aborting\n", excp);
@@ -2899,7 +2937,7 @@ void cpu_ppc_reset (void *opaque)
     msr |= (target_ulong)1 << MSR_PR;
 #else
     env->nip = env->hreset_vector | env->excp_prefix;
-    if (env->mmu_model != POWERPC_MMU_REAL_4xx)
+    if (env->mmu_model != POWERPC_MMU_REAL)
         ppc_tlb_invalidate_all(env);
 #endif
     env->msr = msr;
diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
index 0f7441ee56..343ec130af 100644
--- a/target-ppc/translate_init.c
+++ b/target-ppc/translate_init.c
@@ -2656,7 +2656,7 @@ static int check_pow_hid0 (CPUPPCState *env)
                               PPC_MEM_SYNC | PPC_MEM_EIEIO |                  \
                               PPC_4xx_COMMON | PPC_40x_EXCP | PPC_40x_ICBT)
 #define POWERPC_MSRM_401     (0x00000000000FD201ULL)
-#define POWERPC_MMU_401      (POWERPC_MMU_REAL_4xx)
+#define POWERPC_MMU_401      (POWERPC_MMU_REAL)
 #define POWERPC_EXCP_401     (POWERPC_EXCP_40x)
 #define POWERPC_INPUT_401    (PPC_FLAGS_INPUT_401)
 #define POWERPC_BFDM_401     (bfd_mach_ppc_403)
@@ -2775,7 +2775,7 @@ static void init_proc_IOP480 (CPUPPCState *env)
                               PPC_MEM_SYNC | PPC_MEM_EIEIO |                  \
                               PPC_4xx_COMMON | PPC_40x_EXCP | PPC_40x_ICBT)
 #define POWERPC_MSRM_403     (0x000000000007D00DULL)
-#define POWERPC_MMU_403      (POWERPC_MMU_REAL_4xx)
+#define POWERPC_MMU_403      (POWERPC_MMU_REAL)
 #define POWERPC_EXCP_403     (POWERPC_EXCP_40x)
 #define POWERPC_INPUT_403    (PPC_FLAGS_INPUT_401)
 #define POWERPC_BFDM_403     (bfd_mach_ppc_403)
@@ -6639,8 +6639,11 @@ int cpu_ppc_register_internal (CPUPPCState *env, const ppc_def_t *def)
             mmu_model = "PowerPC 4xx with software driven TLBs "
                 "and zones protections";
             break;
-        case POWERPC_MMU_REAL_4xx:
-            mmu_model = "PowerPC 4xx real mode only";
+        case POWERPC_MMU_REAL:
+            mmu_model = "PowerPC real mode only";
+            break;
+        case POWERPC_MMU_MPC8xx:
+            mmu_model = "PowerPC MPC8xx";
             break;
         case POWERPC_MMU_BOOKE:
             mmu_model = "PowerPC BookE";
@@ -6648,6 +6651,9 @@ int cpu_ppc_register_internal (CPUPPCState *env, const ppc_def_t *def)
         case POWERPC_MMU_BOOKE_FSL:
             mmu_model = "PowerPC BookE FSL";
             break;
+        case POWERPC_MMU_601:
+            mmu_model = "PowerPC 601";
+            break;
 #if defined (TARGET_PPC64)
         case POWERPC_MMU_64B:
             mmu_model = "PowerPC 64";
@@ -6713,6 +6719,9 @@ int cpu_ppc_register_internal (CPUPPCState *env, const ppc_def_t *def)
         case PPC_FLAGS_INPUT_401:
             bus_model = "PowerPC 401/403";
             break;
+        case PPC_FLAGS_INPUT_RCPU:
+            bus_model = "RCPU / MPC8xx";
+            break;
 #if defined (TARGET_PPC64)
         case PPC_FLAGS_INPUT_970:
             bus_model = "PowerPC 970";