[Mesa-dev] [PATCH] gm107/ir/lib: fix sched in div u32 builtin

[Karol Herbst]

Imad needs to set a read barrier.

With significant big work groups I was getting wrong results for div u32. Turns
out the issue was with the sched opcodes.

CC: Samuel Pitoiset <samuel.pitoiset at gmail.com>
Signed-off-by: Karol Herbst <kherbst at redhat.com>
---
 src/gallium/drivers/nouveau/codegen/lib/gm107.asm   | 4 ++--
 src/gallium/drivers/nouveau/codegen/lib/gm107.asm.h | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/gallium/drivers/nouveau/codegen/lib/gm107.asm b/src/gallium/drivers/nouveau/codegen/lib/gm107.asm
index 90741b6c59f..7ee5f8fc65b 100644
--- a/src/gallium/drivers/nouveau/codegen/lib/gm107.asm
+++ b/src/gallium/drivers/nouveau/codegen/lib/gm107.asm
@@ -27,11 +27,11 @@ gm107_div_u32:
    imul u32 u32 $r3 $r1 $r2
    imad u32 u32 hi $r2 $r2 $r3 $r2
    imul u32 u32 $r3 $r1 $r2
-   sched (st 0x6 wr 0x0 wt 0x1) (st 0x6 wr 0x0 wt 0x1) (st 0x6 wr 0x0 wt 0x1)
+   sched (st 0x6 wr 0x0 wt 0x1) (st 0x6 wr 0x0 wt 0x1) (st 0x6 wr 0x0 rd 0x1 wt 0x1)
    imad u32 u32 hi $r2 $r2 $r3 $r2
    imul u32 u32 $r3 $r1 $r2
    imad u32 u32 hi $r2 $r2 $r3 $r2
-   sched (st 0x6) (st 0x6 wr 0x0 rd 0x1 wt 0x1) (st 0xf wr 0x0 rd 0x1 wt 0x2)
+   sched (st 0x6 wt 0x2) (st 0x6 wr 0x0 rd 0x1 wt 0x1) (st 0xf wr 0x0 rd 0x1 wt 0x2)
    mov $r3 $r0 0xf
    imul u32 u32 hi $r0 $r0 $r2
    i2i u32 u32 $r2 neg $r1
diff --git a/src/gallium/drivers/nouveau/codegen/lib/gm107.asm.h b/src/gallium/drivers/nouveau/codegen/lib/gm107.asm.h
index 8708a94b0a6..65c93f7ae89 100644
--- a/src/gallium/drivers/nouveau/codegen/lib/gm107.asm.h
+++ b/src/gallium/drivers/nouveau/codegen/lib/gm107.asm.h
@@ -16,11 +16,11 @@ uint64_t gm107_builtin_code[] = {
 	0x5c38000000270103,
 	0x5a40010000370202,
 	0x5c38000000270103,
-	0x003c1801e0c00f06,
+	0x00241801e0c00f06,
 	0x5a40010000370202,
 	0x5c38000000270103,
 	0x5a40010000370202,
-	0x00443c0120c007e6,
+	0x00443c0120c017e6,
 	0x5c98078000070003,
 	0x5c38008000270000,
 	0x5ce0200000170a02,
-- 
2.14.3