From 9f6113c7e65a98a88bb95ff5fd8679fbb28f18d6 Mon Sep 17 00:00:00 2001 From: "Edgar E. Iglesias" Date: Tue, 10 Jan 2012 10:33:37 +0100 Subject: microblaze: Break the tb at memory barriers Signed-off-by: Edgar E. Iglesias --- target-microblaze/translate.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) (limited to 'target-microblaze') diff --git a/target-microblaze/translate.c b/target-microblaze/translate.c index 180ac84..96ce2ec 100644 --- a/target-microblaze/translate.c +++ b/target-microblaze/translate.c @@ -1249,12 +1249,22 @@ static void dec_bcc(DisasContext *dc) static void dec_br(DisasContext *dc) { - unsigned int dslot, link, abs; + unsigned int dslot, link, abs, mbar; int mem_index = cpu_mmu_index(dc->env); dslot = dc->ir & (1 << 20); abs = dc->ir & (1 << 19); link = dc->ir & (1 << 18); + + /* Memory barrier. */ + mbar = (dc->ir >> 16) & 31; + if (mbar == 2 && dc->imm == 4) { + LOG_DIS("mbar %d\n", dc->rd); + /* Break the TB. */ + dc->cpustate_changed = 1; + return; + } + LOG_DIS("br%s%s%s%s imm=%x\n", abs ? "a" : "", link ? "l" : "", dc->type_b ? "i" : "", dslot ? "d" : "", -- cgit v1.1