Convert Sparc64 trap state ops to TCG

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4018 c046a42c-6fe2-441c-8c8c-71466251a162

4 files changed, 102 insertions, 69 deletions

diff --git a/target-sparc/cpu.h b/target-sparc/cpu.h
index 9b9d85687b..79870f561d 100644
--- a/target-sparc/cpu.h
+++ b/target-sparc/cpu.h
@@ -169,6 +169,12 @@
 #define NB_MMU_MODES 2
 #else
 #define NB_MMU_MODES 3
+typedef struct trap_state {
+    uint64_t tpc;
+    uint64_t tnpc;
+    uint64_t tstate;
+    uint32_t tt;
+} trap_state;
 #endif
 
 typedef struct CPUSPARCState {
@@ -234,10 +240,8 @@ typedef struct CPUSPARCState {
 #if defined(TARGET_SPARC64)
 #define MAXTL 4
     uint64_t t0, t1, t2;
-    uint64_t tpc[MAXTL];
-    uint64_t tnpc[MAXTL];
-    uint64_t tstate[MAXTL];
-    uint32_t tt[MAXTL];
+    trap_state *tsptr;
+    trap_state ts[MAXTL];
     uint32_t xcc;               /* Extended integer condition codes */
     uint32_t asi;
     uint32_t pstate;
diff --git a/target-sparc/op.c b/target-sparc/op.c
index 0fd6cfd4eb..0e1423b547 100644
--- a/target-sparc/op.c
+++ b/target-sparc/op.c
@@ -805,46 +805,6 @@ void OPPROTO op_wrccr(void)
     PUT_CCR(env, T0);
 }
 
-void OPPROTO op_rdtpc(void)
-{
-    T0 = env->tpc[env->tl];
-}
-
-void OPPROTO op_wrtpc(void)
-{
-    env->tpc[env->tl] = T0;
-}
-
-void OPPROTO op_rdtnpc(void)
-{
-    T0 = env->tnpc[env->tl];
-}
-
-void OPPROTO op_wrtnpc(void)
-{
-    env->tnpc[env->tl] = T0;
-}
-
-void OPPROTO op_rdtstate(void)
-{
-    T0 = env->tstate[env->tl];
-}
-
-void OPPROTO op_wrtstate(void)
-{
-    env->tstate[env->tl] = T0;
-}
-
-void OPPROTO op_rdtt(void)
-{
-    T0 = env->tt[env->tl];
-}
-
-void OPPROTO op_wrtt(void)
-{
-    env->tt[env->tl] = T0;
-}
-
 // CWP handling is reversed in V9, but we still use the V8 register
 // order.
 void OPPROTO op_rdcwp(void)
diff --git a/target-sparc/op_helper.c b/target-sparc/op_helper.c
index bf46b9875d..76af753fb8 100644
--- a/target-sparc/op_helper.c
+++ b/target-sparc/op_helper.c
@@ -1675,23 +1675,25 @@ void helper_wrpstate(target_ulong new_state)
 void helper_done(void)
 {
     env->tl--;
-    env->pc = env->tnpc[env->tl];
-    env->npc = env->tnpc[env->tl] + 4;
-    PUT_CCR(env, env->tstate[env->tl] >> 32);
-    env->asi = (env->tstate[env->tl] >> 24) & 0xff;
-    change_pstate((env->tstate[env->tl] >> 8) & 0xf3f);
-    PUT_CWP64(env, env->tstate[env->tl] & 0xff);
+    env->tsptr = &env->ts[env->tl];
+    env->pc = env->tsptr->tpc;
+    env->npc = env->tsptr->tnpc + 4;
+    PUT_CCR(env, env->tsptr->tstate >> 32);
+    env->asi = (env->tsptr->tstate >> 24) & 0xff;
+    change_pstate((env->tsptr->tstate >> 8) & 0xf3f);
+    PUT_CWP64(env, env->tsptr->tstate & 0xff);
 }
 
 void helper_retry(void)
 {
     env->tl--;
-    env->pc = env->tpc[env->tl];
-    env->npc = env->tnpc[env->tl];
-    PUT_CCR(env, env->tstate[env->tl] >> 32);
-    env->asi = (env->tstate[env->tl] >> 24) & 0xff;
-    change_pstate((env->tstate[env->tl] >> 8) & 0xf3f);
-    PUT_CWP64(env, env->tstate[env->tl] & 0xff);
+    env->tsptr = &env->ts[env->tl];
+    env->pc = env->tsptr->tpc;
+    env->npc = env->tsptr->tnpc;
+    PUT_CCR(env, env->tsptr->tstate >> 32);
+    env->asi = (env->tsptr->tstate >> 24) & 0xff;
+    change_pstate((env->tsptr->tstate >> 8) & 0xf3f);
+    PUT_CWP64(env, env->tsptr->tstate & 0xff);
 }
 #endif
 
@@ -1813,11 +1815,12 @@ void do_interrupt(int intno)
         return;
     }
 #endif
-    env->tstate[env->tl] = ((uint64_t)GET_CCR(env) << 32) | ((env->asi & 0xff) << 24) |
-        ((env->pstate & 0xf3f) << 8) | GET_CWP64(env);
-    env->tpc[env->tl] = env->pc;
-    env->tnpc[env->tl] = env->npc;
-    env->tt[env->tl] = intno;
+    env->tsptr->tstate = ((uint64_t)GET_CCR(env) << 32) |
+        ((env->asi & 0xff) << 24) | ((env->pstate & 0xf3f) << 8) |
+        GET_CWP64(env);
+    env->tsptr->tpc = env->pc;
+    env->tsptr->tnpc = env->npc;
+    env->tsptr->tt = intno;
     change_pstate(PS_PEF | PS_PRIV | PS_AG);
 
     if (intno == TT_CLRWIN)
@@ -1835,6 +1838,7 @@ void do_interrupt(int intno)
         if (env->tl != MAXTL)
             env->tl++;
     }
+    env->tsptr = &env->ts[env->tl];
     env->pc = env->tbr;
     env->npc = env->pc + 4;
     env->exception_index = 0;
diff --git a/target-sparc/translate.c b/target-sparc/translate.c
index cefb848721..2546195fef 100644
--- a/target-sparc/translate.c
+++ b/target-sparc/translate.c
@@ -1386,16 +1386,48 @@ static void disas_sparc_insn(DisasContext * dc)
                 rs1 = GET_FIELD(insn, 13, 17);
                 switch (rs1) {
                 case 0: // tpc
-                    gen_op_rdtpc();
+                    {
+                        TCGv r_tsptr;
+
+                        r_tsptr = tcg_temp_new(TCG_TYPE_PTR);
+                        tcg_gen_ld_ptr(r_tsptr, cpu_env,
+                                       offsetof(CPUState, tsptr));
+                        tcg_gen_ld_tl(cpu_T[0], r_tsptr,
+                                      offsetof(trap_state, tpc));
+                    }
                     break;
                 case 1: // tnpc
-                    gen_op_rdtnpc();
+                    {
+                        TCGv r_tsptr;
+
+                        r_tsptr = tcg_temp_new(TCG_TYPE_PTR);
+                        tcg_gen_ld_ptr(r_tsptr, cpu_env,
+                                       offsetof(CPUState, tsptr));
+                        tcg_gen_ld_tl(cpu_T[0], r_tsptr,
+                                      offsetof(trap_state, tnpc));
+                    }
                     break;
                 case 2: // tstate
-                    gen_op_rdtstate();
+                    {
+                        TCGv r_tsptr;
+
+                        r_tsptr = tcg_temp_new(TCG_TYPE_PTR);
+                        tcg_gen_ld_ptr(r_tsptr, cpu_env,
+                                       offsetof(CPUState, tsptr));
+                        tcg_gen_ld_tl(cpu_T[0], r_tsptr,
+                                      offsetof(trap_state, tstate));
+                    }
                     break;
                 case 3: // tt
-                    gen_op_rdtt();
+                    {
+                        TCGv r_tsptr;
+
+                        r_tsptr = tcg_temp_new(TCG_TYPE_PTR);
+                        tcg_gen_ld_ptr(r_tsptr, cpu_env,
+                                       offsetof(CPUState, tsptr));
+                        tcg_gen_ld_i32(cpu_T[0], r_tsptr,
+                                       offsetof(trap_state, tt));
+                    }
                     break;
                 case 4: // tick
                     {
@@ -2536,16 +2568,48 @@ static void disas_sparc_insn(DisasContext * dc)
 #ifdef TARGET_SPARC64
                             switch (rd) {
                             case 0: // tpc
-                                gen_op_wrtpc();
+                                {
+                                    TCGv r_tsptr;
+
+                                    r_tsptr = tcg_temp_new(TCG_TYPE_PTR);
+                                    tcg_gen_ld_ptr(r_tsptr, cpu_env,
+                                                   offsetof(CPUState, tsptr));
+                                    tcg_gen_st_tl(cpu_T[0], r_tsptr,
+                                                  offsetof(trap_state, tpc));
+                                }
                                 break;
                             case 1: // tnpc
-                                gen_op_wrtnpc();
+                                {
+                                    TCGv r_tsptr;
+
+                                    r_tsptr = tcg_temp_new(TCG_TYPE_PTR);
+                                    tcg_gen_ld_ptr(r_tsptr, cpu_env,
+                                                   offsetof(CPUState, tsptr));
+                                    tcg_gen_st_tl(cpu_T[0], r_tsptr,
+                                                  offsetof(trap_state, tnpc));
+                                }
                                 break;
                             case 2: // tstate
-                                gen_op_wrtstate();
+                                {
+                                    TCGv r_tsptr;
+
+                                    r_tsptr = tcg_temp_new(TCG_TYPE_PTR);
+                                    tcg_gen_ld_ptr(r_tsptr, cpu_env,
+                                                   offsetof(CPUState, tsptr));
+                                    tcg_gen_st_tl(cpu_T[0], r_tsptr,
+                                                  offsetof(trap_state, tstate));
+                                }
                                 break;
                             case 3: // tt
-                                gen_op_wrtt();
+                                {
+                                    TCGv r_tsptr;
+
+                                    r_tsptr = tcg_temp_new(TCG_TYPE_PTR);
+                                    tcg_gen_ld_ptr(r_tsptr, cpu_env,
+                                                   offsetof(CPUState, tsptr));
+                                    tcg_gen_st_i32(cpu_T[0], r_tsptr,
+                                                   offsetof(trap_state, tt));
+                                }
                                 break;
                             case 4: // tick
                                 {
@@ -3921,6 +3985,7 @@ void cpu_reset(CPUSPARCState *env)
     env->pstate = PS_PRIV;
     env->hpstate = HS_PRIV;
     env->pc = 0x1fff0000000ULL;
+    env->tsptr = &env->ts[env->tl];
 #else
     env->pc = 0;
     env->mmuregs[0] &= ~(MMU_E | MMU_NF);