Mesa (main): zink: add doc for ZINK_DEBUG=compact

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Module: Mesa
Branch: main
Commit: 49688e6b8c808d7d722c79f92cfe5ce476bf2ecb
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=49688e6b8c808d7d722c79f92cfe5ce476bf2ecb

Author: Mike Blumenkrantz <michael.blumenkrantz at gmail.com>
Date:   Fri Jul 15 11:08:25 2022 -0400

zink: add doc for ZINK_DEBUG=compact

Reviewed-by: Dave Airlie <airlied at redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17667>

---

 docs/drivers/zink.rst | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/docs/drivers/zink.rst b/docs/drivers/zink.rst
index 996d61e78d2..54f1814ff6d 100644
--- a/docs/drivers/zink.rst
+++ b/docs/drivers/zink.rst
@@ -280,6 +280,8 @@ variable:
    Dump Validation layer output.
 ``sync``
    Emit full synchronization barriers before every draw and dispatch.
+``compact``
+   Use a maximum of 4 descriptor sets
 
 Vulkan Validation Layers
 ^^^^^^^^^^^^^^^^^^^^^^^^