From 7a8fb46797d6697b4e414a8717bf913e5e963da3 Mon Sep 17 00:00:00 2001
From: randyh62 <42045079+randyh62@users.noreply.github.com>
Date: Fri, 22 Aug 2025 14:28:42 -0700
Subject: [PATCH] Update env_variables.rst

Add note regarding changing HSA_SCRATCH_SINGLE_LIMIT.
---
 runtime/docs/data/env_variables.rst | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/runtime/docs/data/env_variables.rst b/runtime/docs/data/env_variables.rst
index 4ae0c3e9a..ffabec72f 100644
--- a/runtime/docs/data/env_variables.rst
+++ b/runtime/docs/data/env_variables.rst
@@ -27,6 +27,8 @@
     * - | ``HSA_SCRATCH_SINGLE_LIMIT``
         | Specifies the threshold for the amount of scratch memory allocated and reclaimed in kernel dispatches.
         | Enabling ``HSA_NO_SCRATCH_RECLAIM`` circumvents ``HSA_SCRATCH_SINGLE_LIMIT``, and treats ``HSA_SCRATCH_SINGLE_LIMIT`` as the maximum value.
+        |
+        | **NOTE:** In the 7.0 release the developer can use the HIP enumerator ``hipExtLimitScratchCurrent`` to programmatically change the default scratch memory allocation size. For more information, see `Global enums and defines <https://rocm.docs.amd.com/projects/HIP/en/latest/reference/hip_runtime_api/global_defines_enums_structs_files/global_enum_and_defines.html>`_.
       - ``146800640``
       - 0 to 4GB per XCC