From patchwork Tue Feb  8 09:59:50 2011
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Subject: Handle icount for powerpc tbl/tbu/decr load and store.
Date: Mon, 07 Feb 2011 23:59:50 -0000
From: Tristan Gingold <gingold@adacore.com>
X-Patchwork-Id: 82276
Message-Id: <1297159190-29092-1-git-send-email-gingold@adacore.com>
To: qemu-devel@nongnu.org

Handle option '-icount X' on powerpc targets.

Signed-off-by: Tristan Gingold <gingold@adacore.com>

---
target-ppc/translate_init.c |   36 ++++++++++++++++++++++++++++++++++++
 1 files changed, 36 insertions(+), 0 deletions(-)

diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
index 907535e..7ef86ad 100644
--- a/target-ppc/translate_init.c
+++ b/target-ppc/translate_init.c
@@ -154,12 +154,24 @@ static void spr_read_ureg (void *opaque, int gprn, int sprn)
 #if !defined(CONFIG_USER_ONLY)
 static void spr_read_decr (void *opaque, int gprn, int sprn)
 {
+    if (use_icount)
+        gen_io_start();
     gen_helper_load_decr(cpu_gpr[gprn]);
+    if (use_icount) {
+        gen_io_end();
+	gen_stop_exception(opaque);
+    }
 }
 
 static void spr_write_decr (void *opaque, int sprn, int gprn)
 {
+    if (use_icount)
+        gen_io_start();
     gen_helper_store_decr(cpu_gpr[gprn]);
+    if (use_icount) {
+        gen_io_end();
+	gen_stop_exception(opaque);
+    }
 }
 #endif
 
@@ -167,12 +179,24 @@ static void spr_write_decr (void *opaque, int sprn, int gprn)
 /* Time base */
 static void spr_read_tbl (void *opaque, int gprn, int sprn)
 {
+    if (use_icount)
+        gen_io_start();
     gen_helper_load_tbl(cpu_gpr[gprn]);
+    if (use_icount) {
+        gen_io_end();
+	gen_stop_exception(opaque);
+    }
 }
 
 static void spr_read_tbu (void *opaque, int gprn, int sprn)
 {
+    if (use_icount)
+        gen_io_start();
     gen_helper_load_tbu(cpu_gpr[gprn]);
+    if (use_icount) {
+        gen_io_end();
+	gen_stop_exception(opaque);
+    }
 }
 
 __attribute__ (( unused ))
@@ -190,12 +214,24 @@ static void spr_read_atbu (void *opaque, int gprn, int sprn)
 #if !defined(CONFIG_USER_ONLY)
 static void spr_write_tbl (void *opaque, int sprn, int gprn)
 {
+    if (use_icount)
+        gen_io_start();
     gen_helper_store_tbl(cpu_gpr[gprn]);
+    if (use_icount) {
+        gen_io_end();
+	gen_stop_exception(opaque);
+    }
 }
 
 static void spr_write_tbu (void *opaque, int sprn, int gprn)
 {
+    if (use_icount)
+        gen_io_start();
     gen_helper_store_tbu(cpu_gpr[gprn]);
+    if (use_icount) {
+        gen_io_end();
+	gen_stop_exception(opaque);
+    }
 }
 
 __attribute__ (( unused ))