Considering the current adoption of the KUnit framework, convert the
DRM plane helper selftest to the KUnit API.

Acked-by: Daniel Latypov <dlaty...@google.com>
Tested-by: David Gow <david...@google.com>
Co-developed-by: Djakson C. G. Filho <djakson.fi...@gmail.com>
Signed-off-by: Djakson C. G. Filho <djakson.fi...@gmail.com>
Co-developed-by: Anderson Fraga <aaafr...@gmail.com>
Signed-off-by: Anderson Fraga <aaafr...@gmail.com>
Signed-off-by: Maíra Canal <maira.ca...@usp.br>
---
 drivers/gpu/drm/selftests/Makefile            |   4 +-
 .../gpu/drm/selftests/drm_modeset_selftests.h |   1 -
 .../drm/selftests/test-drm_modeset_common.h   |   1 -
 drivers/gpu/drm/tests/Makefile                |   2 +-
 .../drm_plane_helper_test.c}                  | 103 ++++++++++--------
 5 files changed, 60 insertions(+), 51 deletions(-)
 rename drivers/gpu/drm/{selftests/test-drm_plane_helper.c => 
tests/drm_plane_helper_test.c} (62%)

diff --git a/drivers/gpu/drm/selftests/Makefile 
b/drivers/gpu/drm/selftests/Makefile
index b7f252d886d0..9e0ccb482841 100644
--- a/drivers/gpu/drm/selftests/Makefile
+++ b/drivers/gpu/drm/selftests/Makefile
@@ -1,6 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0-only
-test-drm_modeset-y := test-drm_modeset_common.o test-drm_plane_helper.o \
-                      test-drm_framebuffer.o test-drm_dp_mst_helper.o
+test-drm_modeset-y := test-drm_modeset_common.o test-drm_framebuffer.o \
+                                       test-drm_dp_mst_helper.o
 
 obj-$(CONFIG_DRM_DEBUG_SELFTEST) += test-drm_mm.o test-drm_modeset.o \
                                    test-drm_buddy.o
diff --git a/drivers/gpu/drm/selftests/drm_modeset_selftests.h 
b/drivers/gpu/drm/selftests/drm_modeset_selftests.h
index 63061ef55eff..22e467f6465a 100644
--- a/drivers/gpu/drm/selftests/drm_modeset_selftests.h
+++ b/drivers/gpu/drm/selftests/drm_modeset_selftests.h
@@ -6,7 +6,6 @@
  *
  * Tests are executed in order by igt/drm_selftests_helper
  */
-selftest(check_plane_state, igt_check_plane_state)
 selftest(check_drm_framebuffer_create, igt_check_drm_framebuffer_create)
 selftest(dp_mst_calc_pbn_mode, igt_dp_mst_calc_pbn_mode)
 selftest(dp_mst_sideband_msg_req_decode, igt_dp_mst_sideband_msg_req_decode)
diff --git a/drivers/gpu/drm/selftests/test-drm_modeset_common.h 
b/drivers/gpu/drm/selftests/test-drm_modeset_common.h
index 5709d967a5c4..790f3cf31f0d 100644
--- a/drivers/gpu/drm/selftests/test-drm_modeset_common.h
+++ b/drivers/gpu/drm/selftests/test-drm_modeset_common.h
@@ -16,7 +16,6 @@
 
 #define FAIL_ON(x) FAIL((x), "%s", "FAIL_ON(" __stringify(x) ")\n")
 
-int igt_check_plane_state(void *ignored);
 int igt_check_drm_framebuffer_create(void *ignored);
 int igt_dp_mst_calc_pbn_mode(void *ignored);
 int igt_dp_mst_sideband_msg_req_decode(void *ignored);
diff --git a/drivers/gpu/drm/tests/Makefile b/drivers/gpu/drm/tests/Makefile
index 1aa1627cb5e6..4d44006a4f23 100644
--- a/drivers/gpu/drm/tests/Makefile
+++ b/drivers/gpu/drm/tests/Makefile
@@ -1,4 +1,4 @@
 # SPDX-License-Identifier: GPL-2.0
 
 obj-$(CONFIG_DRM_KUNIT_TEST) += drm_format_helper_test.o 
drm_damage_helper_test.o \
-       drm_cmdline_parser_test.o drm_rect_test.o drm_format_test.o
+       drm_cmdline_parser_test.o drm_rect_test.o drm_format_test.o 
drm_plane_helper_test.o
diff --git a/drivers/gpu/drm/selftests/test-drm_plane_helper.c 
b/drivers/gpu/drm/tests/drm_plane_helper_test.c
similarity index 62%
rename from drivers/gpu/drm/selftests/test-drm_plane_helper.c
rename to drivers/gpu/drm/tests/drm_plane_helper_test.c
index 64e8938ab194..7f27f1fce373 100644
--- a/drivers/gpu/drm/selftests/test-drm_plane_helper.c
+++ b/drivers/gpu/drm/tests/drm_plane_helper_test.c
@@ -3,15 +3,12 @@
  * Test cases for the drm_plane_helper functions
  */
 
-#define pr_fmt(fmt) "drm_plane_helper: " fmt
-
+#include <kunit/test.h>
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_framebuffer.h>
 #include <drm/drm_plane_helper.h>
 #include <drm/drm_modes.h>
 
-#include "test-drm_modeset_common.h"
-
 static void set_src(struct drm_plane_state *plane_state,
                    unsigned src_x, unsigned src_y,
                    unsigned src_w, unsigned src_h)
@@ -74,7 +71,7 @@ static bool check_crtc_eq(struct drm_plane_state *plane_state,
        return true;
 }
 
-int igt_check_plane_state(void *ignored)
+static void igt_check_plane_state(struct kunit *test)
 {
        int ret;
 
@@ -109,10 +106,10 @@ int igt_check_plane_state(void *ignored)
                                                  DRM_PLANE_HELPER_NO_SCALING,
                                                  DRM_PLANE_HELPER_NO_SCALING,
                                                  false, false);
-       FAIL(ret < 0, "Simple clipping check should pass\n");
-       FAIL_ON(!plane_state.visible);
-       FAIL_ON(!check_src_eq(&plane_state, 0, 0, 1024 << 16, 768 << 16));
-       FAIL_ON(!check_crtc_eq(&plane_state, 0, 0, 1024, 768));
+       KUNIT_EXPECT_FALSE_MSG(test, ret, 0, "Simple clipping check should 
pass\n");
+       KUNIT_EXPECT_TRUE(test, plane_state.visible);
+       KUNIT_EXPECT_TRUE(test, check_src_eq(&plane_state, 0, 0, 1024 << 16, 
768 << 16));
+       KUNIT_EXPECT_TRUE(test, check_crtc_eq(&plane_state, 0, 0, 1024, 768));
 
        /* Rotated clipping + reflection, no scaling. */
        plane_state.rotation = DRM_MODE_ROTATE_90 | DRM_MODE_REFLECT_X;
@@ -120,10 +117,10 @@ int igt_check_plane_state(void *ignored)
                                                  DRM_PLANE_HELPER_NO_SCALING,
                                                  DRM_PLANE_HELPER_NO_SCALING,
                                                  false, false);
-       FAIL(ret < 0, "Rotated clipping check should pass\n");
-       FAIL_ON(!plane_state.visible);
-       FAIL_ON(!check_src_eq(&plane_state, 0, 0, 768 << 16, 1024 << 16));
-       FAIL_ON(!check_crtc_eq(&plane_state, 0, 0, 1024, 768));
+       KUNIT_EXPECT_FALSE_MSG(test, ret, 0, "Rotated clipping check should 
pass\n");
+       KUNIT_EXPECT_TRUE(test, plane_state.visible);
+       KUNIT_EXPECT_TRUE(test, check_src_eq(&plane_state, 0, 0, 768 << 16, 
1024 << 16));
+       KUNIT_EXPECT_TRUE(test, check_crtc_eq(&plane_state, 0, 0, 1024, 768));
        plane_state.rotation = DRM_MODE_ROTATE_0;
 
        /* Check whether positioning works correctly. */
@@ -133,16 +130,17 @@ int igt_check_plane_state(void *ignored)
                                                  DRM_PLANE_HELPER_NO_SCALING,
                                                  DRM_PLANE_HELPER_NO_SCALING,
                                                  false, false);
-       FAIL(!ret, "Should not be able to position on the crtc with 
can_position=false\n");
+       KUNIT_EXPECT_TRUE_MSG(test, ret,
+                       "Should not be able to position on the crtc with 
can_position=false\n");
 
        ret = drm_atomic_helper_check_plane_state(&plane_state, &crtc_state,
                                                  DRM_PLANE_HELPER_NO_SCALING,
                                                  DRM_PLANE_HELPER_NO_SCALING,
                                                  true, false);
-       FAIL(ret < 0, "Simple positioning should work\n");
-       FAIL_ON(!plane_state.visible);
-       FAIL_ON(!check_src_eq(&plane_state, 0, 0, 1023 << 16, 767 << 16));
-       FAIL_ON(!check_crtc_eq(&plane_state, 0, 0, 1023, 767));
+       KUNIT_EXPECT_FALSE_MSG(test, ret, 0, "Simple positioning should 
work\n");
+       KUNIT_EXPECT_TRUE(test, plane_state.visible);
+       KUNIT_EXPECT_TRUE(test, check_src_eq(&plane_state, 0, 0, 1023 << 16, 
767 << 16));
+       KUNIT_EXPECT_TRUE(test, check_crtc_eq(&plane_state, 0, 0, 1023, 767));
 
        /* Simple scaling tests. */
        set_src(&plane_state, 0, 0, 512 << 16, 384 << 16);
@@ -151,28 +149,28 @@ int igt_check_plane_state(void *ignored)
                                                  0x8001,
                                                  DRM_PLANE_HELPER_NO_SCALING,
                                                  false, false);
-       FAIL(!ret, "Upscaling out of range should fail.\n");
+       KUNIT_EXPECT_TRUE_MSG(test, ret, "Upscaling out of range should 
fail.\n");
        ret = drm_atomic_helper_check_plane_state(&plane_state, &crtc_state,
                                                  0x8000,
                                                  DRM_PLANE_HELPER_NO_SCALING,
                                                  false, false);
-       FAIL(ret < 0, "Upscaling exactly 2x should work\n");
-       FAIL_ON(!plane_state.visible);
-       FAIL_ON(!check_src_eq(&plane_state, 0, 0, 512 << 16, 384 << 16));
-       FAIL_ON(!check_crtc_eq(&plane_state, 0, 0, 1024, 768));
+       KUNIT_EXPECT_FALSE_MSG(test, ret, 0, "Upscaling exactly 2x should 
work\n");
+       KUNIT_EXPECT_TRUE(test, plane_state.visible);
+       KUNIT_EXPECT_TRUE(test, check_src_eq(&plane_state, 0, 0, 512 << 16, 384 
<< 16));
+       KUNIT_EXPECT_TRUE(test, check_crtc_eq(&plane_state, 0, 0, 1024, 768));
 
        set_src(&plane_state, 0, 0, 2048 << 16, 1536 << 16);
        ret = drm_atomic_helper_check_plane_state(&plane_state, &crtc_state,
                                                  DRM_PLANE_HELPER_NO_SCALING,
                                                  0x1ffff, false, false);
-       FAIL(!ret, "Downscaling out of range should fail.\n");
+       KUNIT_EXPECT_TRUE_MSG(test, ret, "Downscaling out of range should 
fail.\n");
        ret = drm_atomic_helper_check_plane_state(&plane_state, &crtc_state,
                                                  DRM_PLANE_HELPER_NO_SCALING,
                                                  0x20000, false, false);
-       FAIL(ret < 0, "Should succeed with exact scaling limit\n");
-       FAIL_ON(!plane_state.visible);
-       FAIL_ON(!check_src_eq(&plane_state, 0, 0, 2048 << 16, 1536 << 16));
-       FAIL_ON(!check_crtc_eq(&plane_state, 0, 0, 1024, 768));
+       KUNIT_EXPECT_FALSE_MSG(test, ret, 0, "Should succeed with exact scaling 
limit\n");
+       KUNIT_EXPECT_TRUE(test, plane_state.visible);
+       KUNIT_EXPECT_TRUE(test, check_src_eq(&plane_state, 0, 0, 2048 << 16, 
1536 << 16));
+       KUNIT_EXPECT_TRUE(test, check_crtc_eq(&plane_state, 0, 0, 1024, 768));
 
        /* Testing rounding errors. */
        set_src(&plane_state, 0, 0, 0x40001, 0x40001);
@@ -181,10 +179,10 @@ int igt_check_plane_state(void *ignored)
                                                  DRM_PLANE_HELPER_NO_SCALING,
                                                  0x10001,
                                                  true, false);
-       FAIL(ret < 0, "Should succeed by clipping to exact multiple");
-       FAIL_ON(!plane_state.visible);
-       FAIL_ON(!check_src_eq(&plane_state, 0, 0, 2 << 16, 2 << 16));
-       FAIL_ON(!check_crtc_eq(&plane_state, 1022, 766, 2, 2));
+       KUNIT_EXPECT_FALSE_MSG(test, ret, 0, "Should succeed by clipping to 
exact multiple");
+       KUNIT_EXPECT_TRUE(test, plane_state.visible);
+       KUNIT_EXPECT_TRUE(test, check_src_eq(&plane_state, 0, 0, 2 << 16, 2 << 
16));
+       KUNIT_EXPECT_TRUE(test, check_crtc_eq(&plane_state, 1022, 766, 2, 2));
 
        set_src(&plane_state, 0x20001, 0x20001, 0x4040001, 0x3040001);
        set_crtc(&plane_state, -2, -2, 1028, 772);
@@ -192,10 +190,10 @@ int igt_check_plane_state(void *ignored)
                                                  DRM_PLANE_HELPER_NO_SCALING,
                                                  0x10001,
                                                  false, false);
-       FAIL(ret < 0, "Should succeed by clipping to exact multiple");
-       FAIL_ON(!plane_state.visible);
-       FAIL_ON(!check_src_eq(&plane_state, 0x40002, 0x40002, 1024 << 16, 768 
<< 16));
-       FAIL_ON(!check_crtc_eq(&plane_state, 0, 0, 1024, 768));
+       KUNIT_EXPECT_FALSE_MSG(test, ret, 0, "Should succeed by clipping to 
exact multiple");
+       KUNIT_EXPECT_TRUE(test, plane_state.visible);
+       KUNIT_EXPECT_TRUE(test, check_src_eq(&plane_state, 0x40002, 0x40002, 
1024 << 16, 768 << 16));
+       KUNIT_EXPECT_TRUE(test, check_crtc_eq(&plane_state, 0, 0, 1024, 768));
 
        set_src(&plane_state, 0, 0, 0x3ffff, 0x3ffff);
        set_crtc(&plane_state, 1022, 766, 4, 4);
@@ -203,11 +201,11 @@ int igt_check_plane_state(void *ignored)
                                                  0xffff,
                                                  DRM_PLANE_HELPER_NO_SCALING,
                                                  true, false);
-       FAIL(ret < 0, "Should succeed by clipping to exact multiple");
-       FAIL_ON(!plane_state.visible);
+       KUNIT_EXPECT_FALSE_MSG(test, ret, 0, "Should succeed by clipping to 
exact multiple");
+       KUNIT_EXPECT_TRUE(test, plane_state.visible);
        /* Should not be rounded to 0x20001, which would be upscaling. */
-       FAIL_ON(!check_src_eq(&plane_state, 0, 0, 2 << 16, 2 << 16));
-       FAIL_ON(!check_crtc_eq(&plane_state, 1022, 766, 2, 2));
+       KUNIT_EXPECT_TRUE(test, check_src_eq(&plane_state, 0, 0, 2 << 16, 2 << 
16));
+       KUNIT_EXPECT_TRUE(test, check_crtc_eq(&plane_state, 1022, 766, 2, 2));
 
        set_src(&plane_state, 0x1ffff, 0x1ffff, 0x403ffff, 0x303ffff);
        set_crtc(&plane_state, -2, -2, 1028, 772);
@@ -215,10 +213,23 @@ int igt_check_plane_state(void *ignored)
                                                  0xffff,
                                                  DRM_PLANE_HELPER_NO_SCALING,
                                                  false, false);
-       FAIL(ret < 0, "Should succeed by clipping to exact multiple");
-       FAIL_ON(!plane_state.visible);
-       FAIL_ON(!check_src_eq(&plane_state, 0x3fffe, 0x3fffe, 1024 << 16, 768 
<< 16));
-       FAIL_ON(!check_crtc_eq(&plane_state, 0, 0, 1024, 768));
-
-       return 0;
+       KUNIT_EXPECT_FALSE_MSG(test, ret, 0, "Should succeed by clipping to 
exact multiple");
+       KUNIT_EXPECT_TRUE(test, plane_state.visible);
+       KUNIT_EXPECT_TRUE(test, check_src_eq(&plane_state, 0x3fffe, 0x3fffe,
+                               1024 << 16, 768 << 16));
+       KUNIT_EXPECT_TRUE(test, check_crtc_eq(&plane_state, 0, 0, 1024, 768));
 }
+
+static struct kunit_case drm_plane_helper_test[] = {
+       KUNIT_CASE(igt_check_plane_state),
+       {}
+};
+
+static struct kunit_suite drm_plane_helper_test_suite = {
+       .name = "drm_plane_helper",
+       .test_cases = drm_plane_helper_test,
+};
+
+kunit_test_suite(drm_plane_helper_test_suite);
+
+MODULE_LICENSE("GPL");
-- 
2.36.1

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