From 17bb96b03d340c0aee8e1a332fdcd695e9179486 Mon Sep 17 00:00:00 2001 From: Vadim Girlin Date: Sun, 11 Aug 2013 02:52:34 +0400 Subject: [PATCH] r600g/sb: use MULADD workaround on R7xx for MULADD_IEEE Looks like the same issue that was seen with MULADD in trans slot on R7xx also affects MULADD_IEEE (maybe all OP3 instructions and MULADD is just a most frequently used?). So the workaround is to not allow affected instructions to be placed into the trans slot. Fixes https://bugs.freedesktop.org/show_bug.cgi?id=67927 Signed-off-by: Vadim Girlin Cc: "9.2" --- src/gallium/drivers/r600/sb/sb_sched.cpp | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/src/gallium/drivers/r600/sb/sb_sched.cpp b/src/gallium/drivers/r600/sb/sb_sched.cpp index f0e41f58637..27923155dae 100644 --- a/src/gallium/drivers/r600/sb/sb_sched.cpp +++ b/src/gallium/drivers/r600/sb/sb_sched.cpp @@ -1490,7 +1490,8 @@ unsigned post_scheduler::try_add_instruction(node *n) { // FIXME workaround for some problems with MULADD in trans slot on r700, // (is it really needed on r600?) - if (a->bc.op == ALU_OP3_MULADD && !ctx.is_egcm()) { + if ((a->bc.op == ALU_OP3_MULADD || a->bc.op == ALU_OP3_MULADD_IEEE) && + !ctx.is_egcm()) { allowed_slots &= 0x0F; } -- 2.30.2