From 091b43b970f3cc996f27314cccc64cee0aa9155a Mon Sep 17 00:00:00 2001
From: Konstantin Seurer <konstantin.seurer@gmail.com>
Date: Wed, 31 Dec 2025 20:01:01 +0100
Subject: [PATCH] radv: Use HPLOC for TLAS builds

The BVH quality is comparable to PLOC but the build is much faster.

Reviewed-by: Natalie Vock <natalie.vock@gmx.de>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/39116>
---
 src/amd/vulkan/radv_acceleration_structure.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/amd/vulkan/radv_acceleration_structure.c b/src/amd/vulkan/radv_acceleration_structure.c
index 9ca033cb2af..72b25e12c72 100644
--- a/src/amd/vulkan/radv_acceleration_structure.c
+++ b/src/amd/vulkan/radv_acceleration_structure.c
@@ -287,6 +287,9 @@ radv_get_build_config(VkDevice _device, struct vk_acceleration_structure_build_s
 
    VkGeometryTypeKHR geometry_type = vk_get_as_geometry_type(state->build_info);
 
+   if (state->build_info->type == VK_ACCELERATION_STRUCTURE_TYPE_TOP_LEVEL_KHR)
+      state->config.internal_type = VK_INTERNAL_BUILD_TYPE_HPLOC;
+
    uint32_t encode_key = 0;
    if (radv_use_bvh8(pdev)) {
       /*