From 810da51e9130fbcaf664f5758804d6b7cd20edb0 Mon Sep 17 00:00:00 2001
From: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Date: Fri, 9 Jun 2023 16:32:17 +0300
Subject: [PATCH] anv: report max simd width only once for fragment shaders

Reporting the value multiple times is confusing to shader-db scripts
because it believes multiple shaders are affected.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Acked-by: Emma Anholt <emma@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23559>
---
 src/intel/vulkan/anv_pipeline.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/intel/vulkan/anv_pipeline.c b/src/intel/vulkan/anv_pipeline.c
index 50e05a7cb02..8fe21e4e586 100644
--- a/src/intel/vulkan/anv_pipeline.c
+++ b/src/intel/vulkan/anv_pipeline.c
@@ -4224,7 +4224,11 @@ VkResult anv_GetPipelineExecutableStatisticsKHR(
       WRITE_STR(stat->description,
                 "Largest SIMD dispatch width.");
       stat->format = VK_PIPELINE_EXECUTABLE_STATISTIC_FORMAT_UINT64_KHR;
-      stat->value.u64 = exe->stats.max_dispatch_width;
+      /* Report the max dispatch width only on the smallest SIMD variant */
+      if (exe->stage != MESA_SHADER_FRAGMENT || exe->stats.dispatch_width == 8)
+         stat->value.u64 = exe->stats.max_dispatch_width;
+      else
+         stat->value.u64 = 0;
    }
 
    vk_outarray_append_typed(VkPipelineExecutableStatisticKHR, &out, stat) {