From dd571ede85d81a4159a3fc554c2a1ecfdee53643 Mon Sep 17 00:00:00 2001
From: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Date: Tue, 10 Jan 2023 01:17:37 +0300
Subject: [PATCH] docs/envvars: Document MESA_DISK_CACHE_COMBINE_RW_WITH_RO_FOZ

Add documentation for the MESA_DISK_CACHE_COMBINE_RW_WITH_RO_FOZ environment
variable.

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Reviewed-by: Juston Li <justonli@google.com>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20595>
---
 docs/envvars.rst | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/docs/envvars.rst b/docs/envvars.rst
index 5b76cbe3070..0bab6649f69 100644
--- a/docs/envvars.rst
+++ b/docs/envvars.rst
@@ -201,6 +201,12 @@ Core Mesa environment variables
    if set to ``true``, keeps hit/miss statistics for the shader cache.
    These statistics are printed when the app terminates.
 
+.. envvar:: MESA_DISK_CACHE_COMBINE_RW_WITH_RO_FOZ
+
+   if set to 1, enables simultaneous use of rw and ro fossilize db caches.
+   At first data will be retrieved from the read-only foz cache. If data
+   isn't found in the ro cache, then it will be retrieved from the rw cache.
+
 .. envvar:: MESA_GLSL
 
    :ref:`shading language compiler options <envvars>`