panfrost: Document render_condition_check contract

This was implicit before, leading to the bug fixed in the previous commit.

Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20689>

diff --git a/src/gallium/drivers/panfrost/pan_context.c b/src/gallium/drivers/panfrost/pan_context.c
index db9b619..11dbd1b 100644 (file)
--- a/src/gallium/drivers/panfrost/pan_context.c
+++ b/src/gallium/drivers/panfrost/pan_context.c
@@ -723,6 +723,11 @@ panfrost_get_query_result(struct pipe_context *pipe, struct pipe_query *q,
    return true;
 }
 
+/*
+ * Check the render condition for software condition rendering.
+ *
+ * Note: this may invalidate the batch!
+ */
 bool
 panfrost_render_condition_check(struct panfrost_context *ctx)
 {