From e5a041ee1c2ac6b2280a41da821aed3304e652aa Mon Sep 17 00:00:00 2001
From: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Date: Wed, 17 Dec 2025 12:07:49 +0100
Subject: [PATCH] ac/spm: add an assertion to check the number of global
 instances

To make sure counters aren't silently discarded.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/39013>
---
 src/amd/common/ac_spm.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/amd/common/ac_spm.c b/src/amd/common/ac_spm.c
index d14ac2b80c0..a0ea83f2847 100644
--- a/src/amd/common/ac_spm.c
+++ b/src/amd/common/ac_spm.c
@@ -545,6 +545,8 @@ bool ac_init_spm(const struct radeon_info *info,
       const struct ac_pc_block *block = ac_pc_get_block(pc, create_info[i].b->gpu_block);
       struct ac_spm_counter_create_info counter = create_info[i];
 
+      assert(block->num_global_instances > 0);
+
       for (unsigned j = 0; j < block->num_global_instances; j++) {
          counter.instance = j;