From 3811834eb19855b1366c5d4abbedc3c98aebbeb9 Mon Sep 17 00:00:00 2001
From: Karol Herbst <kherbst@redhat.com>
Date: Sat, 24 Sep 2022 21:09:32 +0200
Subject: [PATCH] rusticl: limit global mem to 2GB

Signed-off-by: Karol Herbst <kherbst@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18802>
---
 src/gallium/frontends/rusticl/core/device.rs | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/gallium/frontends/rusticl/core/device.rs b/src/gallium/frontends/rusticl/core/device.rs
index cea99856095..705eefbbd01 100644
--- a/src/gallium/frontends/rusticl/core/device.rs
+++ b/src/gallium/frontends/rusticl/core/device.rs
@@ -621,8 +621,12 @@ impl Device {
     }
 
     pub fn max_mem_alloc(&self) -> cl_ulong {
-        self.screen
-            .compute_param(pipe_compute_cap::PIPE_COMPUTE_CAP_MAX_MEM_ALLOC_SIZE)
+        // TODO: at the moment gallium doesn't support bigger buffers
+        min(
+            self.screen
+                .compute_param(pipe_compute_cap::PIPE_COMPUTE_CAP_MAX_MEM_ALLOC_SIZE),
+            0x80000000,
+        )
     }
 
     pub fn max_samplers(&self) -> cl_uint {