From 2522fbf32d522acfd234f9d12f2025bdfa43fade Mon Sep 17 00:00:00 2001
From: Karol Herbst <kherbst@redhat.com>
Date: Fri, 29 Apr 2022 03:20:25 +0200
Subject: [PATCH] rusticl/kernel: set
 CL_DEVICE_PREFERRED_WORK_GROUP_SIZE_MULTIPLE

Signed-off-by: Karol Herbst <kherbst@redhat.com>
Acked-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15439>
---
 src/gallium/frontends/rusticl/api/device.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/gallium/frontends/rusticl/api/device.rs b/src/gallium/frontends/rusticl/api/device.rs
index 7c215b2cd89..db33be00ee6 100644
--- a/src/gallium/frontends/rusticl/api/device.rs
+++ b/src/gallium/frontends/rusticl/api/device.rs
@@ -138,7 +138,9 @@ impl CLInfo<cl_device_info> for cl_device_id {
             CL_DEVICE_PREFERRED_VECTOR_WIDTH_INT => cl_prop::<cl_uint>(1),
             CL_DEVICE_PREFERRED_VECTOR_WIDTH_LONG => cl_prop::<cl_uint>(1),
             CL_DEVICE_PREFERRED_VECTOR_WIDTH_SHORT => cl_prop::<cl_uint>(1),
-            CL_DEVICE_PREFERRED_WORK_GROUP_SIZE_MULTIPLE => cl_prop::<usize>(1),
+            CL_DEVICE_PREFERRED_WORK_GROUP_SIZE_MULTIPLE => {
+                cl_prop::<usize>(dev.subgroups() as usize)
+            }
             CL_DEVICE_PRINTF_BUFFER_SIZE => cl_prop::<usize>(dev.printf_buffer_size()),
             // TODO
             CL_DEVICE_PROFILING_TIMER_RESOLUTION => cl_prop::<usize>(0),