Merge remote-tracking branch 'remotes/rth/tags/pull-hppa-20190316' into staging

Fix lost interrupts.
Update seabios-hppa.

# gpg: Signature made Sat 16 Mar 2019 16:13:42 GMT
# gpg:                using RSA key 64DF38E8AF7E215F
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A  05C0 64DF 38E8 AF7E 215F

* remotes/rth/tags/pull-hppa-20190316:
  Update seabios-hppa to latest upstream
  target/hppa: Avoid squishing DISAS_IAQ_N_STALE_EXIT

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

4 files changed, 30 insertions, 16 deletions

diff --git a/hw/hppa/hppa_hardware.h b/hw/hppa/hppa_hardware.h
index 2c61b1f77c..af2f5ee2bd 100644
--- a/hw/hppa/hppa_hardware.h
+++ b/hw/hppa/hppa_hardware.h
@@ -19,7 +19,7 @@
 #define LASI_PS2KBD_HPA 0xffd08000
 #define LASI_PS2MOU_HPA 0xffd08100
 #define LASI_GFX_HPA    0xf8000000
-#define CPU_HPA         0xfff10000
+#define CPU_HPA         0xfffb0000
 #define MEMORY_HPA      0xfffbf000
 
 #define PCI_HPA         DINO_HPA        /* PCI bus */
@@ -36,5 +36,5 @@
 #define PORT_SERIAL1    (DINO_UART_HPA + 0x800)
 #define PORT_SERIAL2    (LASI_UART_HPA + 0x800)
 
-#define HPPA_MAX_CPUS   32      /* max. number of SMP CPUs */
+#define HPPA_MAX_CPUS   8       /* max. number of SMP CPUs */
 #define CPU_CLOCK_MHZ   250     /* emulate a 250 MHz CPU */
diff --git a/pc-bios/hppa-firmware.img b/pc-bios/hppa-firmware.img
index 86930974b9..c79e1e923c 100644
--- a/pc-bios/hppa-firmware.img
+++ b/pc-bios/hppa-firmware.img
diff --git a/roms/seabios-hppa b/roms/seabios-hppa
-Subproject 1ef99a01572c2581c30e16e6fe69e9ea2ef92ce
+Subproject 0f4fe84658165e96ce35870fd19fc634e182e77
diff --git a/target/hppa/translate.c b/target/hppa/translate.c
index 35c504087f..43b74367ea 100644
--- a/target/hppa/translate.c
+++ b/target/hppa/translate.c
@@ -347,6 +347,7 @@ static int expand_shl11(int val)
 /* Similarly, but we want to return to the main loop immediately
    to recognize unmasked interrupts.  */
 #define DISAS_IAQ_N_STALE_EXIT      DISAS_TARGET_2
+#define DISAS_EXIT                  DISAS_TARGET_3
 
 /* global register indexes */
 static TCGv_reg cpu_gr[32];
@@ -4218,19 +4219,31 @@ static void hppa_tr_translate_insn(DisasContextBase *dcbase, CPUState *cs)
     ctx->iaoq_b = ctx->iaoq_n;
     ctx->base.pc_next += 4;
 
-    if (ret == DISAS_NORETURN || ret == DISAS_IAQ_N_UPDATED) {
-        return;
-    }
-    if (ctx->iaoq_f == -1) {
-        tcg_gen_mov_reg(cpu_iaoq_f, cpu_iaoq_b);
-        copy_iaoq_entry(cpu_iaoq_b, ctx->iaoq_n, ctx->iaoq_n_var);
+    switch (ret) {
+    case DISAS_NORETURN:
+    case DISAS_IAQ_N_UPDATED:
+        break;
+
+    case DISAS_NEXT:
+    case DISAS_IAQ_N_STALE:
+    case DISAS_IAQ_N_STALE_EXIT:
+        if (ctx->iaoq_f == -1) {
+            tcg_gen_mov_reg(cpu_iaoq_f, cpu_iaoq_b);
+            copy_iaoq_entry(cpu_iaoq_b, ctx->iaoq_n, ctx->iaoq_n_var);
 #ifndef CONFIG_USER_ONLY
-        tcg_gen_mov_i64(cpu_iasq_f, cpu_iasq_b);
+            tcg_gen_mov_i64(cpu_iasq_f, cpu_iasq_b);
 #endif
-        nullify_save(ctx);
-        ctx->base.is_jmp = DISAS_IAQ_N_UPDATED;
-    } else if (ctx->iaoq_b == -1) {
-        tcg_gen_mov_reg(cpu_iaoq_b, ctx->iaoq_n_var);
+            nullify_save(ctx);
+            ctx->base.is_jmp = (ret == DISAS_IAQ_N_STALE_EXIT
+                                ? DISAS_EXIT
+                                : DISAS_IAQ_N_UPDATED);
+        } else if (ctx->iaoq_b == -1) {
+            tcg_gen_mov_reg(cpu_iaoq_b, ctx->iaoq_n_var);
+        }
+        break;
+
+    default:
+        g_assert_not_reached();
     }
 }
 
@@ -4252,11 +4265,12 @@ static void hppa_tr_tb_stop(DisasContextBase *dcbase, CPUState *cs)
     case DISAS_IAQ_N_UPDATED:
         if (ctx->base.singlestep_enabled) {
             gen_excp_1(EXCP_DEBUG);
-        } else if (is_jmp == DISAS_IAQ_N_STALE_EXIT) {
-            tcg_gen_exit_tb(NULL, 0);
-        } else {
+        } else if (is_jmp != DISAS_IAQ_N_STALE_EXIT) {
             tcg_gen_lookup_and_goto_ptr();
         }
+        /* FALLTHRU */
+    case DISAS_EXIT:
+        tcg_gen_exit_tb(NULL, 0);
         break;
     default:
         g_assert_not_reached();