linux-kernel - [PATCH 2/2] drm: add documentation for drm_buddy

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Message-ID: <da7e150c65b85b414f2f9790e04442408678877d.1693550658.git.mchehab@kernel.org>
Date:   Fri,  1 Sep 2023 08:51:06 +0200
From:   Mauro Carvalho Chehab <mchehab@...nel.org>
To:     Linux Doc Mailing List <linux-doc@...r.kernel.org>
Cc:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        Christian König <christian.koening@....com>,
        "Jason A. Donenfeld" <Jason@...c4.com>,
        "Jonathan Corbet" <corbet@....net>,
        "Mauro Carvalho Chehab" <mchehab+huawei@...nel.org>,
        Maíra Canal <mairacanal@...eup.net>,
        Arthur Grillo <arthurgrillo@...eup.net>,
        Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@....com>,
        Daniel Vetter <daniel@...ll.ch>,
        David Airlie <airlied@...il.com>,
        David Gow <davidgow@...gle.com>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] drm: add documentation for drm_buddy_test kUnit test

As an example for the new documentation tool, add a documentation
for drm_buddy_test.

I opted to place this on a completely different directory, in order
to make easier to test the feature with:

	$ make SPHINXDIRS="tests" htmldocs

Acked-by: Christian König <christian.koening@....com>
Reviewed-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@....com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@...nel.org>
---
 Documentation/index.rst                |  2 +-
 Documentation/tests/index.rst          |  6 ++++++
 Documentation/tests/kunit.rst          |  5 +++++
 drivers/gpu/drm/tests/drm_buddy_test.c | 12 ++++++++++++
 4 files changed, 24 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/tests/index.rst
 create mode 100644 Documentation/tests/kunit.rst

diff --git a/Documentation/index.rst b/Documentation/index.rst
index 9dfdc826618c..80a6ce14a61a 100644
--- a/Documentation/index.rst
+++ b/Documentation/index.rst
@@ -60,7 +60,7 @@ Various other manuals with useful information for all kernel developers.
    fault-injection/index
    livepatch/index
    rust/index
-
+   test/index
 
 User-oriented documentation
 ===========================
diff --git a/Documentation/tests/index.rst b/Documentation/tests/index.rst
new file mode 100644
index 000000000000..bfc39eb5c0aa
--- /dev/null
+++ b/Documentation/tests/index.rst
@@ -0,0 +1,6 @@
+========================
+Kunit documentation test
+========================
+
+.. toctree::
+   kunit
diff --git a/Documentation/tests/kunit.rst b/Documentation/tests/kunit.rst
new file mode 100644
index 000000000000..6ffc151988a0
--- /dev/null
+++ b/Documentation/tests/kunit.rst
@@ -0,0 +1,5 @@
+Kunit tests
+-----------
+
+.. include-test:: drivers/gpu/drm/tests/drm_buddy_test.c
+
diff --git a/drivers/gpu/drm/tests/drm_buddy_test.c b/drivers/gpu/drm/tests/drm_buddy_test.c
index 09ee6f6af896..dd6c5afd6cd6 100644
--- a/drivers/gpu/drm/tests/drm_buddy_test.c
+++ b/drivers/gpu/drm/tests/drm_buddy_test.c
@@ -737,6 +737,18 @@ static int drm_buddy_suite_init(struct kunit_suite *suite)
 	return 0;
 }
 
+/**
+ * KTEST_SUITE: set of tests for drm buddy alloc
+ * Scope: drm subsystem
+ * Mega feature: drm
+ * Feature: buddy_alloc
+ *
+ * KTEST_TEST: drm_test_buddy_alloc_%s
+ * Description: Run DRM buddy allocation %arg[1] test
+ *
+ * arg[1].values: limit, range, optimistic, smoke, pathological
+ */
+
 static struct kunit_case drm_buddy_tests[] = {
 	KUNIT_CASE(drm_test_buddy_alloc_limit),
 	KUNIT_CASE(drm_test_buddy_alloc_range),
-- 
2.41.0