diff mbox series

[v5,27/94] target/sparc: Move WRPSR, SAVED, RESTORED to decodetree

Message ID 20231022232932.80507-28-richard.henderson@linaro.org
State Superseded
Headers show
Series target/sparc: Convert to decodetree | expand

Commit Message

Richard Henderson Oct. 22, 2023, 11:28 p.m. UTC 
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/sparc/insns.decode | 10 +++++++
 target/sparc/translate.c  | 62 ++++++++++++++++++---------------------
 2 files changed, 39 insertions(+), 33 deletions(-)
diff mbox series

Patch

diff --git a/target/sparc/insns.decode b/target/sparc/insns.decode
index 118f0f1f17..45cf47a32f 100644
--- a/target/sparc/insns.decode
+++ b/target/sparc/insns.decode
@@ -85,6 +85,16 @@  RDHPR_htba          10 rd:5  101001 00101 0 0000000000000
 RDHPR_hver          10 rd:5  101001 00110 0 0000000000000
 RDHPR_hstick_cmpr   10 rd:5  101001 11111 0 0000000000000
 
+{
+  WRPSR             10 00000 110001 ..... . .............  @n_r_ri
+  SAVED             10 00000 110001 00000 0 0000000000000
+}
+RESTORED            10 00001 110001 00000 0 0000000000000
+# UA2005 ALLCLEAN
+# UA2005 OTHERW
+# UA2005 NORMALW
+# UA2005 INVALW
+
 {
   RDWIM             10 rd:5  101010 00000 0 0000000000000
   RDPR_tpc          10 rd:5  101010 00000 0 0000000000000
diff --git a/target/sparc/translate.c b/target/sparc/translate.c
index 83716307f6..58ea3b2ba7 100644
--- a/target/sparc/translate.c
+++ b/target/sparc/translate.c
@@ -39,11 +39,14 @@ 
 #ifdef TARGET_SPARC64
 # define gen_helper_rdpsr(D, E)                 qemu_build_not_reached()
 # define gen_helper_power_down(E)               qemu_build_not_reached()
+# define gen_helper_wrpsr(E, S)                 qemu_build_not_reached()
 #else
 # define gen_helper_clear_softint(E, S)         qemu_build_not_reached()
 # define gen_helper_flushw(E)                   qemu_build_not_reached()
 # define gen_helper_rdccr(D, E)                 qemu_build_not_reached()
 # define gen_helper_rdcwp(D, E)                 qemu_build_not_reached()
+# define gen_helper_restored(E)                 qemu_build_not_reached()
+# define gen_helper_saved(E)                    qemu_build_not_reached()
 # define gen_helper_set_softint(E, S)           qemu_build_not_reached()
 # define gen_helper_tick_get_count(D, E, T, C)  qemu_build_not_reached()
 # define gen_helper_wrccr(E, S)                 qemu_build_not_reached()
@@ -3745,6 +3748,32 @@  static void do_wrpowerdown(DisasContext *dc, TCGv src)
 
 TRANS(WRPOWERDOWN, POWERDOWN, do_wr_special, a, supervisor(dc), do_wrpowerdown)
 
+static void do_wrpsr(DisasContext *dc, TCGv src)
+{
+    gen_helper_wrpsr(tcg_env, src);
+    tcg_gen_movi_i32(cpu_cc_op, CC_OP_FLAGS);
+    dc->cc_op = CC_OP_FLAGS;
+    dc->base.is_jmp = DISAS_EXIT;
+}
+
+TRANS(WRPSR, 32, do_wr_special, a, supervisor(dc), do_wrpsr)
+
+static bool do_saved_restored(DisasContext *dc, bool saved)
+{
+    if (!supervisor(dc)) {
+        return raise_priv(dc);
+    }
+    if (saved) {
+        gen_helper_saved(tcg_env);
+    } else {
+        gen_helper_restored(tcg_env);
+    }
+    return advance_pc(dc);
+}
+
+TRANS(SAVED, 64, do_saved_restored, true)
+TRANS(RESTORED, 64, do_saved_restored, false)
+
 static bool trans_NOP_v7(DisasContext *dc, arg_NOP_v7 *a)
 {
     /*
@@ -4419,39 +4448,6 @@  static void disas_sparc_legacy(DisasContext *dc, unsigned int insn)
                     case 0x30:
                         goto illegal_insn;  /* WRASR in decodetree */
 #if !defined(CONFIG_USER_ONLY)
-                    case 0x31: /* wrpsr, V9 saved, restored */
-                        {
-                            if (!supervisor(dc))
-                                goto priv_insn;
-#ifdef TARGET_SPARC64
-                            switch (rd) {
-                            case 0:
-                                gen_helper_saved(tcg_env);
-                                break;
-                            case 1:
-                                gen_helper_restored(tcg_env);
-                                break;
-                            case 2: /* UA2005 allclean */
-                            case 3: /* UA2005 otherw */
-                            case 4: /* UA2005 normalw */
-                            case 5: /* UA2005 invalw */
-                                // XXX
-                            default:
-                                goto illegal_insn;
-                            }
-#else
-                            cpu_tmp0 = tcg_temp_new();
-                            tcg_gen_xor_tl(cpu_tmp0, cpu_src1, cpu_src2);
-                            gen_helper_wrpsr(tcg_env, cpu_tmp0);
-                            tcg_gen_movi_i32(cpu_cc_op, CC_OP_FLAGS);
-                            dc->cc_op = CC_OP_FLAGS;
-                            save_state(dc);
-                            gen_op_next_insn();
-                            tcg_gen_exit_tb(NULL, 0);
-                            dc->base.is_jmp = DISAS_NORETURN;
-#endif
-                        }
-                        break;
                     case 0x32: /* wrwim, V9 wrpr */
                         {
                             if (!supervisor(dc))