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[PATCH v1 3/5] target/microblaze: mbar: Add support for data-access barr
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From: |
Edgar E. Iglesias |
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Subject: |
[PATCH v1 3/5] target/microblaze: mbar: Add support for data-access barriers |
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Date: |
Mon, 17 Aug 2020 16:01:42 +0200 |
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 --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);
--
2.25.1