diff mbox series

[v1,3/5] target/microblaze: mbar: Add support for data-access barriers

Message ID 20200817140144.373403-4-edgar.iglesias@gmail.com
State New
Headers show
Series target/microblaze: Enable MTTCG | expand

Commit Message

Edgar E. Iglesias Aug. 17, 2020, 2:01 p.m. UTC 
From: "Edgar E. Iglesias" <edgar.iglesias@xilinx.com>

Add support for data-access barriers.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
---
 target/microblaze/translate.c | 5 +++++
 1 file changed, 5 insertions(+)
diff mbox series

Patch

diff --git a/target/microblaze/translate.c b/target/microblaze/translate.c
index c1be76d4c8..c58f334a0f 100644
--- a/target/microblaze/translate.c
+++ b/target/microblaze/translate.c
@@ -1233,6 +1233,11 @@  static void dec_br(DisasContext *dc)
 
         LOG_DIS("mbar %d\n", mbar_imm);
 
+        /* Data access memory barrier.  */
+        if ((mbar_imm & 2) == 0) {
+            tcg_gen_mb(TCG_BAR_SC | TCG_MO_ALL);
+        }
+
         /* mbar IMM & 16 decodes to sleep.  */
         if (mbar_imm & 16) {
             TCGv_i32 tmp_hlt = tcg_const_i32(EXCP_HLT);