1 files changed, 3 insertions, 2 deletions
diff --git a/src/intel/vulkan/anv_pipeline.c b/src/intel/vulkan/anv_pipeline.c
index 5800e683d39..f55069ee747 100644
--- a/src/intel/vulkan/anv_pipeline.c
+++ b/src/intel/vulkan/anv_pipeline.c
@@ -286,8 +286,9 @@ populate_wm_prog_key(const struct brw_device_info *devinfo,
       /* We should probably pull this out of the shader, but it's fairly
        * harmless to compute it and then let dead-code take care of it.
        */
-      key->persample_shading = info->pMultisampleState->sampleShadingEnable;
-      key->compute_pos_offset = info->pMultisampleState->sampleShadingEnable;
+      key->persample_interp =
+         (info->pMultisampleState->minSampleShading *
+          info->pMultisampleState->rasterizationSamples) > 1;
       key->multisample_fbo = true;
    }
 }