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authorEdgar E. Iglesias <edgar.iglesias@xilinx.com>2020-08-13 17:41:33 +0200
committerEdgar E. Iglesias <edgar.iglesias@xilinx.com>2020-08-24 10:47:27 +0200
commit3f17274491cff2c8bfef74ceeccb037ecbd52705 (patch)
treee1a9e16656ecfdc26508a5977b5a13e904b91564 /target
parent6f3c458baf54eaa9047faffcc9f6e8251d393762 (diff)
target/microblaze: mbar: Add support for data-access barriers
Add support for data-access barriers. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Diffstat (limited to 'target')
-rw-r--r--target/microblaze/translate.c5
1 files changed, 5 insertions, 0 deletions
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);