docs: document ACO_DEBUG=perfinfo

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9599>

diff --git a/docs/envvars.rst b/docs/envvars.rst
index eebc2f8..0496c52 100644 (file)
--- a/docs/envvars.rst
+++ b/docs/envvars.rst
@@ -665,6 +665,8 @@ RADV driver environment variables
       disable various optimizations
    ``noscheduling``
       disable instructions scheduling
+   ``perfinfo``
+      print information used to calculate some pipeline statistics
 
 radeonsi driver environment variables
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~