From 31b7ebcbc7fdbef3b26e714443b1f7840b7982e6 Mon Sep 17 00:00:00 2001
From: Alyssa Rosenzweig <alyssa@collabora.com>
Date: Wed, 23 Feb 2022 09:29:28 -0500
Subject: [PATCH] pan/mdg: Fix overflow in intra-bundle interference

There are up to 4 instructions in the latter stage (if a branch is included),
not 3. Bump the limit to fix memory corruption.

Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Reported-by: Icecream95 <ixn@disroot.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15147>
---
 src/panfrost/midgard/midgard_ra.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/panfrost/midgard/midgard_ra.c b/src/panfrost/midgard/midgard_ra.c
index af208bb0b26..8c9ef632542 100644
--- a/src/panfrost/midgard/midgard_ra.c
+++ b/src/panfrost/midgard/midgard_ra.c
@@ -357,7 +357,7 @@ mir_compute_interference(
                  * avoid this situation.
                  */
                 util_dynarray_foreach(&blk->bundles, midgard_bundle, bundle) {
-                        midgard_instruction *instrs[2][3];
+                        midgard_instruction *instrs[2][4];
                         unsigned instr_count[2] = { 0, 0 };
 
                         for (unsigned i = 0; i < bundle->instruction_count; i++) {