[PATCH v2 1/9] drm: selftest: convert drm_damage_helper selftest to KUnit
From: Maíra Canal
Date: Tue Jun 21 2022 - 16:10:24 EST
Considering the current adoption of the KUnit framework, convert the
DRM damage helper selftest to the KUnit API.
Tested-by: David Gow <davidgow@xxxxxxxxxx>
Co-developed-by: Arthur Grillo <arthur.grillo@xxxxxx>
Signed-off-by: Arthur Grillo <arthur.grillo@xxxxxx>
Signed-off-by: Maíra Canal <maira.canal@xxxxxx>
---
drivers/gpu/drm/Kconfig | 19 +
drivers/gpu/drm/Makefile | 1 +
drivers/gpu/drm/selftests/Makefile | 3 +-
.../gpu/drm/selftests/drm_modeset_selftests.h | 21 -
.../drm/selftests/test-drm_damage_helper.c | 667 ------------------
.../drm/selftests/test-drm_modeset_common.h | 21 -
drivers/gpu/drm/tests/.kunitconfig | 3 +
drivers/gpu/drm/tests/Makefile | 3 +
.../gpu/drm/tests/drm_damage_helper_test.c | 633 +++++++++++++++++
9 files changed, 660 insertions(+), 711 deletions(-)
delete mode 100644 drivers/gpu/drm/selftests/test-drm_damage_helper.c
create mode 100644 drivers/gpu/drm/tests/.kunitconfig
create mode 100644 drivers/gpu/drm/tests/Makefile
create mode 100644 drivers/gpu/drm/tests/drm_damage_helper_test.c
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
index e88c497fa010..f49639bcdbff 100644
--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@@ -70,6 +70,25 @@ config DRM_DEBUG_SELFTEST
If in doubt, say "N".
+config DRM_KUNIT_TEST
+ tristate "KUnit tests for DRM" if !KUNIT_ALL_TESTS
+ depends on DRM && KUNIT
+ select PRIME_NUMBERS
+ select DRM_DISPLAY_DP_HELPER
+ select DRM_DISPLAY_HELPER
+ select DRM_LIB_RANDOM
+ select DRM_KMS_HELPER
+ select DRM_BUDDY
+ select DRM_EXPORT_FOR_TESTS if m
+ default KUNIT_ALL_TESTS
+ help
+ This option provides a KUnit module that can be used to run
+ all unit tests on the DRM API. This option is not useful for
+ distributions or general kernels, but only for kernel
+ developers working on DRM and associated drivers.
+
+ If in doubt, say "N".
+
config DRM_KMS_HELPER
tristate
depends on DRM
diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
index 15fe3163f822..ebc82c5fa65f 100644
--- a/drivers/gpu/drm/Makefile
+++ b/drivers/gpu/drm/Makefile
@@ -76,6 +76,7 @@ obj-$(CONFIG_DRM_KMS_HELPER) += drm_kms_helper.o
#
obj-$(CONFIG_DRM_DEBUG_SELFTEST) += selftests/
+obj-$(CONFIG_DRM_KUNIT_TEST) += tests/
obj-$(CONFIG_DRM_MIPI_DBI) += drm_mipi_dbi.o
obj-$(CONFIG_DRM_MIPI_DSI) += drm_mipi_dsi.o
diff --git a/drivers/gpu/drm/selftests/Makefile b/drivers/gpu/drm/selftests/Makefile
index 5ba5f9138c95..7a1a732e0a1b 100644
--- a/drivers/gpu/drm/selftests/Makefile
+++ b/drivers/gpu/drm/selftests/Makefile
@@ -1,8 +1,7 @@
# SPDX-License-Identifier: GPL-2.0-only
test-drm_modeset-y := test-drm_modeset_common.o test-drm_plane_helper.o \
test-drm_format.o test-drm_framebuffer.o \
- test-drm_damage_helper.o test-drm_dp_mst_helper.o \
- test-drm_rect.o
+ test-drm_dp_mst_helper.o test-drm_rect.o
obj-$(CONFIG_DRM_DEBUG_SELFTEST) += test-drm_mm.o test-drm_modeset.o test-drm_cmdline_parser.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 782e285ca383..4787b3b70709 100644
--- a/drivers/gpu/drm/selftests/drm_modeset_selftests.h
+++ b/drivers/gpu/drm/selftests/drm_modeset_selftests.h
@@ -15,26 +15,5 @@ selftest(check_drm_format_block_width, igt_check_drm_format_block_width)
selftest(check_drm_format_block_height, igt_check_drm_format_block_height)
selftest(check_drm_format_min_pitch, igt_check_drm_format_min_pitch)
selftest(check_drm_framebuffer_create, igt_check_drm_framebuffer_create)
-selftest(damage_iter_no_damage, igt_damage_iter_no_damage)
-selftest(damage_iter_no_damage_fractional_src, igt_damage_iter_no_damage_fractional_src)
-selftest(damage_iter_no_damage_src_moved, igt_damage_iter_no_damage_src_moved)
-selftest(damage_iter_no_damage_fractional_src_moved, igt_damage_iter_no_damage_fractional_src_moved)
-selftest(damage_iter_no_damage_not_visible, igt_damage_iter_no_damage_not_visible)
-selftest(damage_iter_no_damage_no_crtc, igt_damage_iter_no_damage_no_crtc)
-selftest(damage_iter_no_damage_no_fb, igt_damage_iter_no_damage_no_fb)
-selftest(damage_iter_simple_damage, igt_damage_iter_simple_damage)
-selftest(damage_iter_single_damage, igt_damage_iter_single_damage)
-selftest(damage_iter_single_damage_intersect_src, igt_damage_iter_single_damage_intersect_src)
-selftest(damage_iter_single_damage_outside_src, igt_damage_iter_single_damage_outside_src)
-selftest(damage_iter_single_damage_fractional_src, igt_damage_iter_single_damage_fractional_src)
-selftest(damage_iter_single_damage_intersect_fractional_src, igt_damage_iter_single_damage_intersect_fractional_src)
-selftest(damage_iter_single_damage_outside_fractional_src, igt_damage_iter_single_damage_outside_fractional_src)
-selftest(damage_iter_single_damage_src_moved, igt_damage_iter_single_damage_src_moved)
-selftest(damage_iter_single_damage_fractional_src_moved, igt_damage_iter_single_damage_fractional_src_moved)
-selftest(damage_iter_damage, igt_damage_iter_damage)
-selftest(damage_iter_damage_one_intersect, igt_damage_iter_damage_one_intersect)
-selftest(damage_iter_damage_one_outside, igt_damage_iter_damage_one_outside)
-selftest(damage_iter_damage_src_moved, igt_damage_iter_damage_src_moved)
-selftest(damage_iter_damage_not_visible, igt_damage_iter_damage_not_visible)
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_damage_helper.c b/drivers/gpu/drm/selftests/test-drm_damage_helper.c
deleted file mode 100644
index 8d8d8e214c28..000000000000
--- a/drivers/gpu/drm/selftests/test-drm_damage_helper.c
+++ /dev/null
@@ -1,667 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Test case for drm_damage_helper functions
- */
-
-#define pr_fmt(fmt) "drm_damage_helper: " fmt
-
-#include <drm/drm_damage_helper.h>
-#include <drm/drm_plane.h>
-#include <drm/drm_drv.h>
-
-#include "test-drm_modeset_common.h"
-
-struct drm_driver mock_driver;
-static struct drm_device mock_device;
-static struct drm_object_properties mock_obj_props;
-static struct drm_plane mock_plane;
-static struct drm_property mock_prop;
-
-static void mock_setup(struct drm_plane_state *state)
-{
- static bool setup_done = false;
-
- state->plane = &mock_plane;
-
- if (setup_done)
- return;
-
- /* just enough so that drm_plane_enable_fb_damage_clips() works */
- mock_device.driver = &mock_driver;
- mock_device.mode_config.prop_fb_damage_clips = &mock_prop;
- mock_plane.dev = &mock_device;
- mock_obj_props.count = 0;
- mock_plane.base.properties = &mock_obj_props;
- mock_prop.base.id = 1; /* 0 is an invalid id */
- mock_prop.dev = &mock_device;
-
- drm_plane_enable_fb_damage_clips(&mock_plane);
-}
-
-static void set_plane_src(struct drm_plane_state *state, int x1, int y1, int x2,
- int y2)
-{
- state->src.x1 = x1;
- state->src.y1 = y1;
- state->src.x2 = x2;
- state->src.y2 = y2;
-}
-
-static void set_damage_clip(struct drm_mode_rect *r, int x1, int y1, int x2,
- int y2)
-{
- r->x1 = x1;
- r->y1 = y1;
- r->x2 = x2;
- r->y2 = y2;
-}
-
-static void set_damage_blob(struct drm_property_blob *damage_blob,
- struct drm_mode_rect *r, uint32_t size)
-{
- damage_blob->length = size;
- damage_blob->data = r;
-}
-
-static void set_plane_damage(struct drm_plane_state *state,
- struct drm_property_blob *damage_blob)
-{
- state->fb_damage_clips = damage_blob;
-}
-
-static bool check_damage_clip(struct drm_plane_state *state, struct drm_rect *r,
- int x1, int y1, int x2, int y2)
-{
- /*
- * Round down x1/y1 and round up x2/y2. This is because damage is not in
- * 16.16 fixed point so to catch all pixels.
- */
- int src_x1 = state->src.x1 >> 16;
- int src_y1 = state->src.y1 >> 16;
- int src_x2 = (state->src.x2 >> 16) + !!(state->src.x2 & 0xFFFF);
- int src_y2 = (state->src.y2 >> 16) + !!(state->src.y2 & 0xFFFF);
-
- if (x1 >= x2 || y1 >= y2) {
- pr_err("Cannot have damage clip with no dimension.\n");
- return false;
- }
-
- if (x1 < src_x1 || y1 < src_y1 || x2 > src_x2 || y2 > src_y2) {
- pr_err("Damage cannot be outside rounded plane src.\n");
- return false;
- }
-
- if (r->x1 != x1 || r->y1 != y1 || r->x2 != x2 || r->y2 != y2) {
- pr_err("Damage = %d %d %d %d\n", r->x1, r->y1, r->x2, r->y2);
- return false;
- }
-
- return true;
-}
-
-const struct drm_framebuffer fb = {
- .width = 2048,
- .height = 2048
-};
-
-/* common mocked structs many tests need */
-#define MOCK_VARIABLES() \
- struct drm_plane_state old_state; \
- struct drm_plane_state state = { \
- .crtc = ZERO_SIZE_PTR, \
- .fb = (struct drm_framebuffer *) &fb, \
- .visible = true, \
- }; \
- mock_setup(&old_state); \
- mock_setup(&state);
-
-int igt_damage_iter_no_damage(void *ignored)
-{
- struct drm_atomic_helper_damage_iter iter;
- struct drm_rect clip;
- uint32_t num_hits = 0;
-
- MOCK_VARIABLES();
-
- /* Plane src same as fb size. */
- set_plane_src(&old_state, 0, 0, fb.width << 16, fb.height << 16);
- set_plane_src(&state, 0, 0, fb.width << 16, fb.height << 16);
- drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
- drm_atomic_for_each_plane_damage(&iter, &clip)
- num_hits++;
-
- FAIL(num_hits != 1, "Should return plane src as damage.");
- FAIL_ON(!check_damage_clip(&state, &clip, 0, 0, 2048, 2048));
-
- return 0;
-}
-
-int igt_damage_iter_no_damage_fractional_src(void *ignored)
-{
- struct drm_atomic_helper_damage_iter iter;
- struct drm_rect clip;
- uint32_t num_hits = 0;
-
- MOCK_VARIABLES();
-
- /* Plane src has fractional part. */
- set_plane_src(&old_state, 0x3fffe, 0x3fffe,
- 0x3fffe + (1024 << 16), 0x3fffe + (768 << 16));
- set_plane_src(&state, 0x3fffe, 0x3fffe,
- 0x3fffe + (1024 << 16), 0x3fffe + (768 << 16));
- drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
- drm_atomic_for_each_plane_damage(&iter, &clip)
- num_hits++;
-
- FAIL(num_hits != 1, "Should return rounded off plane src as damage.");
- FAIL_ON(!check_damage_clip(&state, &clip, 3, 3, 1028, 772));
-
- return 0;
-}
-
-int igt_damage_iter_no_damage_src_moved(void *ignored)
-{
- struct drm_atomic_helper_damage_iter iter;
- struct drm_rect clip;
- uint32_t num_hits = 0;
-
- MOCK_VARIABLES();
-
- /* Plane src moved since old plane state. */
- set_plane_src(&old_state, 0, 0, 1024 << 16, 768 << 16);
- set_plane_src(&state, 10 << 16, 10 << 16,
- (10 + 1024) << 16, (10 + 768) << 16);
- drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
- drm_atomic_for_each_plane_damage(&iter, &clip)
- num_hits++;
-
- FAIL(num_hits != 1, "Should return plane src as damage.");
- FAIL_ON(!check_damage_clip(&state, &clip, 10, 10, 1034, 778));
-
- return 0;
-}
-
-int igt_damage_iter_no_damage_fractional_src_moved(void *ignored)
-{
- struct drm_atomic_helper_damage_iter iter;
- struct drm_rect clip;
- uint32_t num_hits = 0;
-
- MOCK_VARIABLES();
-
- /* Plane src has fractional part and it moved since old plane state. */
- set_plane_src(&old_state, 0x3fffe, 0x3fffe,
- 0x3fffe + (1024 << 16), 0x3fffe + (768 << 16));
- set_plane_src(&state, 0x40002, 0x40002,
- 0x40002 + (1024 << 16), 0x40002 + (768 << 16));
- drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
- drm_atomic_for_each_plane_damage(&iter, &clip)
- num_hits++;
-
- FAIL(num_hits != 1, "Should return plane src as damage.");
- FAIL_ON(!check_damage_clip(&state, &clip, 4, 4, 1029, 773));
-
- return 0;
-}
-
-int igt_damage_iter_no_damage_not_visible(void *ignored)
-{
- struct drm_atomic_helper_damage_iter iter;
- struct drm_rect clip;
- uint32_t num_hits = 0;
-
- MOCK_VARIABLES();
-
- state.visible = false;
-
- mock_setup(&old_state);
-
- set_plane_src(&old_state, 0, 0, 1024 << 16, 768 << 16);
- set_plane_src(&state, 0, 0, 1024 << 16, 768 << 16);
- drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
- drm_atomic_for_each_plane_damage(&iter, &clip)
- num_hits++;
-
- FAIL(num_hits != 0, "Should have no damage.");
-
- return 0;
-}
-
-int igt_damage_iter_no_damage_no_crtc(void *ignored)
-{
- struct drm_atomic_helper_damage_iter iter;
- struct drm_rect clip;
- uint32_t num_hits = 0;
-
- MOCK_VARIABLES();
-
- state.crtc = NULL;
-
- set_plane_src(&old_state, 0, 0, 1024 << 16, 768 << 16);
- set_plane_src(&state, 0, 0, 1024 << 16, 768 << 16);
- drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
- drm_atomic_for_each_plane_damage(&iter, &clip)
- num_hits++;
-
- FAIL(num_hits != 0, "Should have no damage.");
-
- return 0;
-}
-
-int igt_damage_iter_no_damage_no_fb(void *ignored)
-{
- struct drm_atomic_helper_damage_iter iter;
- struct drm_plane_state old_state;
- struct drm_rect clip;
- uint32_t num_hits = 0;
-
- struct drm_plane_state state = {
- .crtc = ZERO_SIZE_PTR,
- .fb = 0,
- };
-
- mock_setup(&old_state);
-
- set_plane_src(&old_state, 0, 0, 1024 << 16, 768 << 16);
- set_plane_src(&state, 0, 0, 1024 << 16, 768 << 16);
- drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
- drm_atomic_for_each_plane_damage(&iter, &clip)
- num_hits++;
-
- FAIL(num_hits != 0, "Should have no damage.");
-
- return 0;
-}
-
-int igt_damage_iter_simple_damage(void *ignored)
-{
- struct drm_atomic_helper_damage_iter iter;
- struct drm_property_blob damage_blob;
- struct drm_mode_rect damage;
- struct drm_rect clip;
- uint32_t num_hits = 0;
-
- MOCK_VARIABLES();
-
- set_plane_src(&old_state, 0, 0, 1024 << 16, 768 << 16);
- set_plane_src(&state, 0, 0, 1024 << 16, 768 << 16);
- /* Damage set to plane src */
- set_damage_clip(&damage, 0, 0, 1024, 768);
- set_damage_blob(&damage_blob, &damage, sizeof(damage));
- set_plane_damage(&state, &damage_blob);
- drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
- drm_atomic_for_each_plane_damage(&iter, &clip)
- num_hits++;
-
- FAIL(num_hits != 1, "Should return damage when set.");
- FAIL_ON(!check_damage_clip(&state, &clip, 0, 0, 1024, 768));
-
- return 0;
-}
-
-int igt_damage_iter_single_damage(void *ignored)
-{
- struct drm_atomic_helper_damage_iter iter;
- struct drm_property_blob damage_blob;
- struct drm_mode_rect damage;
- struct drm_rect clip;
- uint32_t num_hits = 0;
-
- MOCK_VARIABLES();
-
- set_plane_src(&old_state, 0, 0, 1024 << 16, 768 << 16);
- set_plane_src(&state, 0, 0, 1024 << 16, 768 << 16);
- set_damage_clip(&damage, 256, 192, 768, 576);
- set_damage_blob(&damage_blob, &damage, sizeof(damage));
- set_plane_damage(&state, &damage_blob);
- drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
- drm_atomic_for_each_plane_damage(&iter, &clip)
- num_hits++;
-
- FAIL(num_hits != 1, "Should return damage when set.");
- FAIL_ON(!check_damage_clip(&state, &clip, 256, 192, 768, 576));
-
- return 0;
-}
-
-int igt_damage_iter_single_damage_intersect_src(void *ignored)
-{
- struct drm_atomic_helper_damage_iter iter;
- struct drm_property_blob damage_blob;
- struct drm_mode_rect damage;
- struct drm_rect clip;
- uint32_t num_hits = 0;
-
- MOCK_VARIABLES();
-
- set_plane_src(&old_state, 0, 0, 1024 << 16, 768 << 16);
- set_plane_src(&state, 0, 0, 1024 << 16, 768 << 16);
- /* Damage intersect with plane src. */
- set_damage_clip(&damage, 256, 192, 1360, 768);
- set_damage_blob(&damage_blob, &damage, sizeof(damage));
- set_plane_damage(&state, &damage_blob);
- drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
- drm_atomic_for_each_plane_damage(&iter, &clip)
- num_hits++;
-
- FAIL(num_hits != 1, "Should return damage clipped to src.");
- FAIL_ON(!check_damage_clip(&state, &clip, 256, 192, 1024, 768));
-
- return 0;
-}
-
-int igt_damage_iter_single_damage_outside_src(void *ignored)
-{
- struct drm_atomic_helper_damage_iter iter;
- struct drm_property_blob damage_blob;
- struct drm_mode_rect damage;
- struct drm_rect clip;
- uint32_t num_hits = 0;
-
- MOCK_VARIABLES();
-
- set_plane_src(&old_state, 0, 0, 1024 << 16, 768 << 16);
- set_plane_src(&state, 0, 0, 1024 << 16, 768 << 16);
- /* Damage clip outside plane src */
- set_damage_clip(&damage, 1360, 1360, 1380, 1380);
- set_damage_blob(&damage_blob, &damage, sizeof(damage));
- set_plane_damage(&state, &damage_blob);
- drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
- drm_atomic_for_each_plane_damage(&iter, &clip)
- num_hits++;
-
- FAIL(num_hits != 0, "Should have no damage.");
-
- return 0;
-}
-
-int igt_damage_iter_single_damage_fractional_src(void *ignored)
-{
- struct drm_atomic_helper_damage_iter iter;
- struct drm_property_blob damage_blob;
- struct drm_mode_rect damage;
- struct drm_rect clip;
- uint32_t num_hits = 0;
-
- MOCK_VARIABLES();
-
- /* Plane src has fractional part. */
- set_plane_src(&old_state, 0x40002, 0x40002,
- 0x40002 + (1024 << 16), 0x40002 + (768 << 16));
- set_plane_src(&state, 0x40002, 0x40002,
- 0x40002 + (1024 << 16), 0x40002 + (768 << 16));
- set_damage_clip(&damage, 10, 10, 256, 330);
- set_damage_blob(&damage_blob, &damage, sizeof(damage));
- set_plane_damage(&state, &damage_blob);
- drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
- drm_atomic_for_each_plane_damage(&iter, &clip)
- num_hits++;
-
- FAIL(num_hits != 1, "Should return damage when set.");
- FAIL_ON(!check_damage_clip(&state, &clip, 10, 10, 256, 330));
-
- return 0;
-}
-
-int igt_damage_iter_single_damage_intersect_fractional_src(void *ignored)
-{
- struct drm_atomic_helper_damage_iter iter;
- struct drm_property_blob damage_blob;
- struct drm_mode_rect damage;
- struct drm_rect clip;
- uint32_t num_hits = 0;
-
- MOCK_VARIABLES();
-
- /* Plane src has fractional part. */
- set_plane_src(&old_state, 0x40002, 0x40002,
- 0x40002 + (1024 << 16), 0x40002 + (768 << 16));
- set_plane_src(&state, 0x40002, 0x40002,
- 0x40002 + (1024 << 16), 0x40002 + (768 << 16));
- /* Damage intersect with plane src. */
- set_damage_clip(&damage, 10, 1, 1360, 330);
- set_damage_blob(&damage_blob, &damage, sizeof(damage));
- set_plane_damage(&state, &damage_blob);
- drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
- drm_atomic_for_each_plane_damage(&iter, &clip)
- num_hits++;
-
- FAIL(num_hits != 1, "Should return damage clipped to rounded off src.");
- FAIL_ON(!check_damage_clip(&state, &clip, 10, 4, 1029, 330));
-
- return 0;
-}
-
-int igt_damage_iter_single_damage_outside_fractional_src(void *ignored)
-{
- struct drm_atomic_helper_damage_iter iter;
- struct drm_property_blob damage_blob;
- struct drm_mode_rect damage;
- struct drm_rect clip;
- uint32_t num_hits = 0;
-
- MOCK_VARIABLES();
-
- /* Plane src has fractional part. */
- set_plane_src(&old_state, 0x40002, 0x40002,
- 0x40002 + (1024 << 16), 0x40002 + (768 << 16));
- set_plane_src(&state, 0x40002, 0x40002,
- 0x40002 + (1024 << 16), 0x40002 + (768 << 16));
- /* Damage clip outside plane src */
- set_damage_clip(&damage, 1360, 1360, 1380, 1380);
- set_damage_blob(&damage_blob, &damage, sizeof(damage));
- set_plane_damage(&state, &damage_blob);
- drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
- drm_atomic_for_each_plane_damage(&iter, &clip)
- num_hits++;
-
- FAIL(num_hits != 0, "Should have no damage.");
-
- return 0;
-}
-
-int igt_damage_iter_single_damage_src_moved(void *ignored)
-{
- struct drm_atomic_helper_damage_iter iter;
- struct drm_property_blob damage_blob;
- struct drm_mode_rect damage;
- struct drm_rect clip;
- uint32_t num_hits = 0;
-
- MOCK_VARIABLES();
-
- /* Plane src moved since old plane state. */
- set_plane_src(&old_state, 0, 0, 1024 << 16, 768 << 16);
- set_plane_src(&state, 10 << 16, 10 << 16,
- (10 + 1024) << 16, (10 + 768) << 16);
- set_damage_clip(&damage, 20, 30, 256, 256);
- set_damage_blob(&damage_blob, &damage, sizeof(damage));
- set_plane_damage(&state, &damage_blob);
- drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
- drm_atomic_for_each_plane_damage(&iter, &clip)
- num_hits++;
-
- FAIL(num_hits != 1, "Should return plane src as damage.");
- FAIL_ON(!check_damage_clip(&state, &clip, 10, 10, 1034, 778));
-
- return 0;
-}
-
-int igt_damage_iter_single_damage_fractional_src_moved(void *ignored)
-{
- struct drm_atomic_helper_damage_iter iter;
- struct drm_property_blob damage_blob;
- struct drm_mode_rect damage;
- struct drm_rect clip;
- uint32_t num_hits = 0;
-
- MOCK_VARIABLES();
-
- /* Plane src with fractional part moved since old plane state. */
- set_plane_src(&old_state, 0x3fffe, 0x3fffe,
- 0x3fffe + (1024 << 16), 0x3fffe + (768 << 16));
- set_plane_src(&state, 0x40002, 0x40002,
- 0x40002 + (1024 << 16), 0x40002 + (768 << 16));
- /* Damage intersect with plane src. */
- set_damage_clip(&damage, 20, 30, 1360, 256);
- set_damage_blob(&damage_blob, &damage, sizeof(damage));
- set_plane_damage(&state, &damage_blob);
- drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
- drm_atomic_for_each_plane_damage(&iter, &clip)
- num_hits++;
-
- FAIL(num_hits != 1, "Should return rounded off plane src as damage.");
- FAIL_ON(!check_damage_clip(&state, &clip, 4, 4, 1029, 773));
-
- return 0;
-}
-
-int igt_damage_iter_damage(void *ignored)
-{
- struct drm_atomic_helper_damage_iter iter;
- struct drm_property_blob damage_blob;
- struct drm_mode_rect damage[2];
- struct drm_rect clip;
- uint32_t num_hits = 0;
-
- MOCK_VARIABLES();
-
- set_plane_src(&old_state, 0, 0, 1024 << 16, 768 << 16);
- set_plane_src(&state, 0, 0, 1024 << 16, 768 << 16);
- /* 2 damage clips. */
- set_damage_clip(&damage[0], 20, 30, 200, 180);
- set_damage_clip(&damage[1], 240, 200, 280, 250);
- set_damage_blob(&damage_blob, &damage[0], sizeof(damage));
- set_plane_damage(&state, &damage_blob);
- drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
- drm_atomic_for_each_plane_damage(&iter, &clip) {
- if (num_hits == 0)
- FAIL_ON(!check_damage_clip(&state, &clip, 20, 30, 200, 180));
- if (num_hits == 1)
- FAIL_ON(!check_damage_clip(&state, &clip, 240, 200, 280, 250));
- num_hits++;
- }
-
- FAIL(num_hits != 2, "Should return damage when set.");
-
- return 0;
-}
-
-int igt_damage_iter_damage_one_intersect(void *ignored)
-{
- struct drm_atomic_helper_damage_iter iter;
- struct drm_property_blob damage_blob;
- struct drm_mode_rect damage[2];
- struct drm_rect clip;
- uint32_t num_hits = 0;
-
- MOCK_VARIABLES();
-
- set_plane_src(&old_state, 0x40002, 0x40002,
- 0x40002 + (1024 << 16), 0x40002 + (768 << 16));
- set_plane_src(&state, 0x40002, 0x40002,
- 0x40002 + (1024 << 16), 0x40002 + (768 << 16));
- /* 2 damage clips, one intersect plane src. */
- set_damage_clip(&damage[0], 20, 30, 200, 180);
- set_damage_clip(&damage[1], 2, 2, 1360, 1360);
- set_damage_blob(&damage_blob, &damage[0], sizeof(damage));
- set_plane_damage(&state, &damage_blob);
- drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
- drm_atomic_for_each_plane_damage(&iter, &clip) {
- if (num_hits == 0)
- FAIL_ON(!check_damage_clip(&state, &clip, 20, 30, 200, 180));
- if (num_hits == 1)
- FAIL_ON(!check_damage_clip(&state, &clip, 4, 4, 1029, 773));
- num_hits++;
- }
-
- FAIL(num_hits != 2, "Should return damage when set.");
-
- return 0;
-}
-
-int igt_damage_iter_damage_one_outside(void *ignored)
-{
- struct drm_atomic_helper_damage_iter iter;
- struct drm_property_blob damage_blob;
- struct drm_mode_rect damage[2];
- struct drm_rect clip;
- uint32_t num_hits = 0;
-
- MOCK_VARIABLES();
-
- set_plane_src(&old_state, 0, 0, 1024 << 16, 768 << 16);
- set_plane_src(&state, 0, 0, 1024 << 16, 768 << 16);
- /* 2 damage clips, one outside plane src. */
- set_damage_clip(&damage[0], 1360, 1360, 1380, 1380);
- set_damage_clip(&damage[1], 240, 200, 280, 250);
- set_damage_blob(&damage_blob, &damage[0], sizeof(damage));
- set_plane_damage(&state, &damage_blob);
- drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
- drm_atomic_for_each_plane_damage(&iter, &clip)
- num_hits++;
-
- FAIL(num_hits != 1, "Should return damage when set.");
- FAIL_ON(!check_damage_clip(&state, &clip, 240, 200, 280, 250));
-
- return 0;
-}
-
-int igt_damage_iter_damage_src_moved(void *ignored)
-{
- struct drm_atomic_helper_damage_iter iter;
- struct drm_property_blob damage_blob;
- struct drm_mode_rect damage[2];
- struct drm_rect clip;
- uint32_t num_hits = 0;
-
- MOCK_VARIABLES();
-
- set_plane_src(&old_state, 0x40002, 0x40002,
- 0x40002 + (1024 << 16), 0x40002 + (768 << 16));
- set_plane_src(&state, 0x3fffe, 0x3fffe,
- 0x3fffe + (1024 << 16), 0x3fffe + (768 << 16));
- /* 2 damage clips, one outside plane src. */
- set_damage_clip(&damage[0], 1360, 1360, 1380, 1380);
- set_damage_clip(&damage[1], 240, 200, 280, 250);
- set_damage_blob(&damage_blob, &damage[0], sizeof(damage));
- set_plane_damage(&state, &damage_blob);
- drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
- drm_atomic_for_each_plane_damage(&iter, &clip)
- num_hits++;
-
- FAIL(num_hits != 1, "Should return round off plane src as damage.");
- FAIL_ON(!check_damage_clip(&state, &clip, 3, 3, 1028, 772));
-
- return 0;
-}
-
-int igt_damage_iter_damage_not_visible(void *ignored)
-{
- struct drm_atomic_helper_damage_iter iter;
- struct drm_property_blob damage_blob;
- struct drm_mode_rect damage[2];
- struct drm_rect clip;
- uint32_t num_hits = 0;
-
- MOCK_VARIABLES();
-
- state.visible = false;
-
- set_plane_src(&old_state, 0x40002, 0x40002,
- 0x40002 + (1024 << 16), 0x40002 + (768 << 16));
- set_plane_src(&state, 0x3fffe, 0x3fffe,
- 0x3fffe + (1024 << 16), 0x3fffe + (768 << 16));
- /* 2 damage clips, one outside plane src. */
- set_damage_clip(&damage[0], 1360, 1360, 1380, 1380);
- set_damage_clip(&damage[1], 240, 200, 280, 250);
- set_damage_blob(&damage_blob, &damage[0], sizeof(damage));
- set_plane_damage(&state, &damage_blob);
- drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
- drm_atomic_for_each_plane_damage(&iter, &clip)
- num_hits++;
-
- FAIL(num_hits != 0, "Should not return any damage.");
-
- return 0;
-}
diff --git a/drivers/gpu/drm/selftests/test-drm_modeset_common.h b/drivers/gpu/drm/selftests/test-drm_modeset_common.h
index cfb51d8da2bc..c29354e59cec 100644
--- a/drivers/gpu/drm/selftests/test-drm_modeset_common.h
+++ b/drivers/gpu/drm/selftests/test-drm_modeset_common.h
@@ -25,27 +25,6 @@ int igt_check_drm_format_block_width(void *ignored);
int igt_check_drm_format_block_height(void *ignored);
int igt_check_drm_format_min_pitch(void *ignored);
int igt_check_drm_framebuffer_create(void *ignored);
-int igt_damage_iter_no_damage(void *ignored);
-int igt_damage_iter_no_damage_fractional_src(void *ignored);
-int igt_damage_iter_no_damage_src_moved(void *ignored);
-int igt_damage_iter_no_damage_fractional_src_moved(void *ignored);
-int igt_damage_iter_no_damage_not_visible(void *ignored);
-int igt_damage_iter_no_damage_no_crtc(void *ignored);
-int igt_damage_iter_no_damage_no_fb(void *ignored);
-int igt_damage_iter_simple_damage(void *ignored);
-int igt_damage_iter_single_damage(void *ignored);
-int igt_damage_iter_single_damage_intersect_src(void *ignored);
-int igt_damage_iter_single_damage_outside_src(void *ignored);
-int igt_damage_iter_single_damage_fractional_src(void *ignored);
-int igt_damage_iter_single_damage_intersect_fractional_src(void *ignored);
-int igt_damage_iter_single_damage_outside_fractional_src(void *ignored);
-int igt_damage_iter_single_damage_src_moved(void *ignored);
-int igt_damage_iter_single_damage_fractional_src_moved(void *ignored);
-int igt_damage_iter_damage(void *ignored);
-int igt_damage_iter_damage_one_intersect(void *ignored);
-int igt_damage_iter_damage_one_outside(void *ignored);
-int igt_damage_iter_damage_src_moved(void *ignored);
-int igt_damage_iter_damage_not_visible(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/.kunitconfig b/drivers/gpu/drm/tests/.kunitconfig
new file mode 100644
index 000000000000..6ec04b4c979d
--- /dev/null
+++ b/drivers/gpu/drm/tests/.kunitconfig
@@ -0,0 +1,3 @@
+CONFIG_KUNIT=y
+CONFIG_DRM=y
+CONFIG_DRM_KUNIT_TEST=y
diff --git a/drivers/gpu/drm/tests/Makefile b/drivers/gpu/drm/tests/Makefile
new file mode 100644
index 000000000000..181ac2c9977a
--- /dev/null
+++ b/drivers/gpu/drm/tests/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+obj-$(CONFIG_DRM_KUNIT_TEST) += drm_damage_helper_test.o
diff --git a/drivers/gpu/drm/tests/drm_damage_helper_test.c b/drivers/gpu/drm/tests/drm_damage_helper_test.c
new file mode 100644
index 000000000000..fff2c39c6f34
--- /dev/null
+++ b/drivers/gpu/drm/tests/drm_damage_helper_test.c
@@ -0,0 +1,633 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Test case for drm_damage_helper functions
+ */
+
+#include <kunit/test.h>
+#include <drm/drm_damage_helper.h>
+#include <drm/drm_plane.h>
+#include <drm/drm_drv.h>
+
+struct drm_damage_mock {
+ struct drm_driver driver;
+ struct drm_device device;
+ struct drm_object_properties obj_props;
+ struct drm_plane plane;
+ struct drm_property prop;
+ struct drm_framebuffer fb;
+ struct drm_plane_state state;
+ struct drm_plane_state old_state;
+};
+
+static int drm_damage_helper_init(struct kunit *test)
+{
+ struct drm_damage_mock *mock;
+
+ mock = kunit_kzalloc(test, sizeof(*mock), GFP_KERNEL);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, mock);
+
+ mock->fb.width = 2048;
+ mock->fb.height = 2048;
+
+ mock->state.crtc = ZERO_SIZE_PTR;
+ mock->state.fb = &mock->fb;
+ mock->state.visible = true;
+
+ mock->old_state.plane = &mock->plane;
+ mock->state.plane = &mock->plane;
+
+ /* just enough so that drm_plane_enable_fb_damage_clips() works */
+ mock->device.driver = &mock->driver;
+ mock->device.mode_config.prop_fb_damage_clips = &mock->prop;
+ mock->plane.dev = &mock->device;
+ mock->obj_props.count = 0;
+ mock->plane.base.properties = &mock->obj_props;
+ mock->prop.base.id = 1; /* 0 is an invalid id */
+ mock->prop.dev = &mock->device;
+
+ drm_plane_enable_fb_damage_clips(&mock->plane);
+
+ test->priv = mock;
+
+ return 0;
+}
+
+static void set_plane_src(struct drm_plane_state *state, int x1, int y1, int x2,
+ int y2)
+{
+ state->src.x1 = x1;
+ state->src.y1 = y1;
+ state->src.x2 = x2;
+ state->src.y2 = y2;
+}
+
+static void set_damage_clip(struct drm_mode_rect *r, int x1, int y1, int x2,
+ int y2)
+{
+ r->x1 = x1;
+ r->y1 = y1;
+ r->x2 = x2;
+ r->y2 = y2;
+}
+
+static void set_damage_blob(struct drm_property_blob *damage_blob,
+ struct drm_mode_rect *r, uint32_t size)
+{
+ damage_blob->length = size;
+ damage_blob->data = r;
+}
+
+static void set_plane_damage(struct drm_plane_state *state,
+ struct drm_property_blob *damage_blob)
+{
+ state->fb_damage_clips = damage_blob;
+}
+
+static void check_damage_clip(struct kunit *test, struct drm_rect *r,
+ int x1, int y1, int x2, int y2)
+{
+ struct drm_damage_mock *mock = test->priv;
+ struct drm_plane_state state = mock->state;
+
+ /*
+ * Round down x1/y1 and round up x2/y2. This is because damage is not in
+ * 16.16 fixed point so to catch all pixels.
+ */
+ int src_x1 = state.src.x1 >> 16;
+ int src_y1 = state.src.y1 >> 16;
+ int src_x2 = (state.src.x2 >> 16) + !!(state.src.x2 & 0xFFFF);
+ int src_y2 = (state.src.y2 >> 16) + !!(state.src.y2 & 0xFFFF);
+
+ if (x1 >= x2 || y1 >= y2)
+ KUNIT_FAIL(test, "Cannot have damage clip with no dimension.");
+ if (x1 < src_x1 || y1 < src_y1 || x2 > src_x2 || y2 > src_y2)
+ KUNIT_FAIL(test, "Damage cannot be outside rounded plane src.");
+ if (r->x1 != x1 || r->y1 != y1 || r->x2 != x2 || r->y2 != y2)
+ KUNIT_FAIL(test, "Damage = %d %d %d %d, want = %d %d %d %d",
+ r->x1, r->y1, r->x2, r->y2, x1, y1, x2, y2);
+}
+
+static void igt_damage_iter_no_damage(struct kunit *test)
+{
+ struct drm_damage_mock *mock = test->priv;
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ /* Plane src same as fb size. */
+ set_plane_src(&mock->old_state, 0, 0, mock->fb.width << 16, mock->fb.height << 16);
+ set_plane_src(&mock->state, 0, 0, mock->fb.width << 16, mock->fb.height << 16);
+ drm_atomic_helper_damage_iter_init(&iter, &mock->old_state, &mock->state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ KUNIT_EXPECT_EQ_MSG(test, num_hits, 1, "Should return plane src as damage.");
+ check_damage_clip(test, &clip, 0, 0, 2048, 2048);
+}
+
+static void igt_damage_iter_no_damage_fractional_src(struct kunit *test)
+{
+ struct drm_damage_mock *mock = test->priv;
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ /* Plane src has fractional part. */
+ set_plane_src(&mock->old_state, 0x3fffe, 0x3fffe,
+ 0x3fffe + (1024 << 16), 0x3fffe + (768 << 16));
+ set_plane_src(&mock->state, 0x3fffe, 0x3fffe,
+ 0x3fffe + (1024 << 16), 0x3fffe + (768 << 16));
+ drm_atomic_helper_damage_iter_init(&iter, &mock->old_state, &mock->state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ KUNIT_EXPECT_EQ_MSG(test, num_hits, 1,
+ "Should return rounded off plane src as damage.");
+ check_damage_clip(test, &clip, 3, 3, 1028, 772);
+}
+
+static void igt_damage_iter_no_damage_src_moved(struct kunit *test)
+{
+ struct drm_damage_mock *mock = test->priv;
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ /* Plane src moved since old plane state. */
+ set_plane_src(&mock->old_state, 0, 0, 1024 << 16, 768 << 16);
+ set_plane_src(&mock->state, 10 << 16, 10 << 16,
+ (10 + 1024) << 16, (10 + 768) << 16);
+ drm_atomic_helper_damage_iter_init(&iter, &mock->old_state, &mock->state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ KUNIT_EXPECT_EQ_MSG(test, num_hits, 1, "Should return plane src as damage.");
+ check_damage_clip(test, &clip, 10, 10, 1034, 778);
+}
+
+static void igt_damage_iter_no_damage_fractional_src_moved(struct kunit *test)
+{
+ struct drm_damage_mock *mock = test->priv;
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ /* Plane src has fractional part and it moved since old plane state. */
+ set_plane_src(&mock->old_state, 0x3fffe, 0x3fffe,
+ 0x3fffe + (1024 << 16), 0x3fffe + (768 << 16));
+ set_plane_src(&mock->state, 0x40002, 0x40002,
+ 0x40002 + (1024 << 16), 0x40002 + (768 << 16));
+ drm_atomic_helper_damage_iter_init(&iter, &mock->old_state, &mock->state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ KUNIT_EXPECT_EQ_MSG(test, num_hits, 1, "Should return plane src as damage.");
+ check_damage_clip(test, &clip, 4, 4, 1029, 773);
+}
+
+static void igt_damage_iter_no_damage_not_visible(struct kunit *test)
+{
+ struct drm_damage_mock *mock = test->priv;
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ mock->state.visible = false;
+
+ set_plane_src(&mock->old_state, 0, 0, 1024 << 16, 768 << 16);
+ set_plane_src(&mock->state, 0, 0, 1024 << 16, 768 << 16);
+ drm_atomic_helper_damage_iter_init(&iter, &mock->old_state, &mock->state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ KUNIT_EXPECT_EQ_MSG(test, num_hits, 0, "Should have no damage.");
+}
+
+static void igt_damage_iter_no_damage_no_crtc(struct kunit *test)
+{
+ struct drm_damage_mock *mock = test->priv;
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ mock->state.crtc = NULL;
+
+ set_plane_src(&mock->old_state, 0, 0, 1024 << 16, 768 << 16);
+ set_plane_src(&mock->state, 0, 0, 1024 << 16, 768 << 16);
+ drm_atomic_helper_damage_iter_init(&iter, &mock->old_state, &mock->state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ KUNIT_EXPECT_EQ_MSG(test, num_hits, 0, "Should have no damage.");
+}
+
+static void igt_damage_iter_no_damage_no_fb(struct kunit *test)
+{
+ struct drm_damage_mock *mock = test->priv;
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ mock->state.fb = NULL;
+
+ set_plane_src(&mock->old_state, 0, 0, 1024 << 16, 768 << 16);
+ set_plane_src(&mock->state, 0, 0, 1024 << 16, 768 << 16);
+ drm_atomic_helper_damage_iter_init(&iter, &mock->old_state, &mock->state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ KUNIT_EXPECT_EQ_MSG(test, num_hits, 0, "Should have no damage.");
+}
+
+static void igt_damage_iter_simple_damage(struct kunit *test)
+{
+ struct drm_damage_mock *mock = test->priv;
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_property_blob damage_blob;
+ struct drm_mode_rect damage;
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ set_plane_src(&mock->old_state, 0, 0, 1024 << 16, 768 << 16);
+ set_plane_src(&mock->state, 0, 0, 1024 << 16, 768 << 16);
+ /* Damage set to plane src */
+ set_damage_clip(&damage, 0, 0, 1024, 768);
+ set_damage_blob(&damage_blob, &damage, sizeof(damage));
+ set_plane_damage(&mock->state, &damage_blob);
+ drm_atomic_helper_damage_iter_init(&iter, &mock->old_state, &mock->state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ KUNIT_EXPECT_EQ_MSG(test, num_hits, 1, "Should return damage when set.");
+ check_damage_clip(test, &clip, 0, 0, 1024, 768);
+}
+
+static void igt_damage_iter_single_damage(struct kunit *test)
+{
+ struct drm_damage_mock *mock = test->priv;
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_property_blob damage_blob;
+ struct drm_mode_rect damage;
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ set_plane_src(&mock->old_state, 0, 0, 1024 << 16, 768 << 16);
+ set_plane_src(&mock->state, 0, 0, 1024 << 16, 768 << 16);
+ set_damage_clip(&damage, 256, 192, 768, 576);
+ set_damage_blob(&damage_blob, &damage, sizeof(damage));
+ set_plane_damage(&mock->state, &damage_blob);
+ drm_atomic_helper_damage_iter_init(&iter, &mock->old_state, &mock->state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ KUNIT_EXPECT_EQ_MSG(test, num_hits, 1, "Should return damage when set.");
+ check_damage_clip(test, &clip, 256, 192, 768, 576);
+}
+
+static void igt_damage_iter_single_damage_intersect_src(struct kunit *test)
+{
+ struct drm_damage_mock *mock = test->priv;
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_property_blob damage_blob;
+ struct drm_mode_rect damage;
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ set_plane_src(&mock->old_state, 0, 0, 1024 << 16, 768 << 16);
+ set_plane_src(&mock->state, 0, 0, 1024 << 16, 768 << 16);
+ /* Damage intersect with plane src. */
+ set_damage_clip(&damage, 256, 192, 1360, 768);
+ set_damage_blob(&damage_blob, &damage, sizeof(damage));
+ set_plane_damage(&mock->state, &damage_blob);
+ drm_atomic_helper_damage_iter_init(&iter, &mock->old_state, &mock->state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ KUNIT_EXPECT_EQ_MSG(test, num_hits, 1, "Should return damage clipped to src.");
+ check_damage_clip(test, &clip, 256, 192, 1024, 768);
+}
+
+static void igt_damage_iter_single_damage_outside_src(struct kunit *test)
+{
+ struct drm_damage_mock *mock = test->priv;
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_property_blob damage_blob;
+ struct drm_mode_rect damage;
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ set_plane_src(&mock->old_state, 0, 0, 1024 << 16, 768 << 16);
+ set_plane_src(&mock->state, 0, 0, 1024 << 16, 768 << 16);
+ /* Damage clip outside plane src */
+ set_damage_clip(&damage, 1360, 1360, 1380, 1380);
+ set_damage_blob(&damage_blob, &damage, sizeof(damage));
+ set_plane_damage(&mock->state, &damage_blob);
+ drm_atomic_helper_damage_iter_init(&iter, &mock->old_state, &mock->state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ KUNIT_EXPECT_EQ_MSG(test, num_hits, 0, "Should have no damage.");
+}
+
+static void igt_damage_iter_single_damage_fractional_src(struct kunit *test)
+{
+ struct drm_damage_mock *mock = test->priv;
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_property_blob damage_blob;
+ struct drm_mode_rect damage;
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ /* Plane src has fractional part. */
+ set_plane_src(&mock->old_state, 0x40002, 0x40002,
+ 0x40002 + (1024 << 16), 0x40002 + (768 << 16));
+ set_plane_src(&mock->state, 0x40002, 0x40002,
+ 0x40002 + (1024 << 16), 0x40002 + (768 << 16));
+ set_damage_clip(&damage, 10, 10, 256, 330);
+ set_damage_blob(&damage_blob, &damage, sizeof(damage));
+ set_plane_damage(&mock->state, &damage_blob);
+ drm_atomic_helper_damage_iter_init(&iter, &mock->old_state, &mock->state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ KUNIT_EXPECT_EQ_MSG(test, num_hits, 1, "Should return damage when set.");
+ check_damage_clip(test, &clip, 10, 10, 256, 330);
+}
+
+static void igt_damage_iter_single_damage_intersect_fractional_src(
+ struct kunit *test)
+{
+ struct drm_damage_mock *mock = test->priv;
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_property_blob damage_blob;
+ struct drm_mode_rect damage;
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ /* Plane src has fractional part. */
+ set_plane_src(&mock->old_state, 0x40002, 0x40002,
+ 0x40002 + (1024 << 16), 0x40002 + (768 << 16));
+ set_plane_src(&mock->state, 0x40002, 0x40002,
+ 0x40002 + (1024 << 16), 0x40002 + (768 << 16));
+ /* Damage intersect with plane src. */
+ set_damage_clip(&damage, 10, 1, 1360, 330);
+ set_damage_blob(&damage_blob, &damage, sizeof(damage));
+ set_plane_damage(&mock->state, &damage_blob);
+ drm_atomic_helper_damage_iter_init(&iter, &mock->old_state, &mock->state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ KUNIT_EXPECT_EQ_MSG(test, num_hits, 1,
+ "Should return damage clipped to rounded off src.");
+ check_damage_clip(test, &clip, 10, 4, 1029, 330);
+}
+
+static void igt_damage_iter_single_damage_outside_fractional_src(
+ struct kunit *test)
+{
+ struct drm_damage_mock *mock = test->priv;
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_property_blob damage_blob;
+ struct drm_mode_rect damage;
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ /* Plane src has fractional part. */
+ set_plane_src(&mock->old_state, 0x40002, 0x40002,
+ 0x40002 + (1024 << 16), 0x40002 + (768 << 16));
+ set_plane_src(&mock->state, 0x40002, 0x40002,
+ 0x40002 + (1024 << 16), 0x40002 + (768 << 16));
+ /* Damage clip outside plane src */
+ set_damage_clip(&damage, 1360, 1360, 1380, 1380);
+ set_damage_blob(&damage_blob, &damage, sizeof(damage));
+ set_plane_damage(&mock->state, &damage_blob);
+ drm_atomic_helper_damage_iter_init(&iter, &mock->old_state, &mock->state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ KUNIT_EXPECT_EQ_MSG(test, num_hits, 0, "Should have no damage.");
+}
+
+static void igt_damage_iter_single_damage_src_moved(struct kunit *test)
+{
+ struct drm_damage_mock *mock = test->priv;
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_property_blob damage_blob;
+ struct drm_mode_rect damage;
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ /* Plane src moved since old plane state. */
+ set_plane_src(&mock->old_state, 0, 0, 1024 << 16, 768 << 16);
+ set_plane_src(&mock->state, 10 << 16, 10 << 16,
+ (10 + 1024) << 16, (10 + 768) << 16);
+ set_damage_clip(&damage, 20, 30, 256, 256);
+ set_damage_blob(&damage_blob, &damage, sizeof(damage));
+ set_plane_damage(&mock->state, &damage_blob);
+ drm_atomic_helper_damage_iter_init(&iter, &mock->old_state, &mock->state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ KUNIT_EXPECT_EQ_MSG(test, num_hits, 1,
+ "Should return plane src as damage.");
+ check_damage_clip(test, &clip, 10, 10, 1034, 778);
+}
+
+static void igt_damage_iter_single_damage_fractional_src_moved(
+ struct kunit *test)
+{
+ struct drm_damage_mock *mock = test->priv;
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_property_blob damage_blob;
+ struct drm_mode_rect damage;
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ /* Plane src with fractional part moved since old plane state. */
+ set_plane_src(&mock->old_state, 0x3fffe, 0x3fffe,
+ 0x3fffe + (1024 << 16), 0x3fffe + (768 << 16));
+ set_plane_src(&mock->state, 0x40002, 0x40002,
+ 0x40002 + (1024 << 16), 0x40002 + (768 << 16));
+ /* Damage intersect with plane src. */
+ set_damage_clip(&damage, 20, 30, 1360, 256);
+ set_damage_blob(&damage_blob, &damage, sizeof(damage));
+ set_plane_damage(&mock->state, &damage_blob);
+ drm_atomic_helper_damage_iter_init(&iter, &mock->old_state, &mock->state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ KUNIT_EXPECT_EQ_MSG(test, num_hits, 1,
+ "Should return rounded off plane as damage.");
+ check_damage_clip(test, &clip, 4, 4, 1029, 773);
+}
+
+static void igt_damage_iter_damage(struct kunit *test)
+{
+ struct drm_damage_mock *mock = test->priv;
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_property_blob damage_blob;
+ struct drm_mode_rect damage[2];
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ set_plane_src(&mock->old_state, 0, 0, 1024 << 16, 768 << 16);
+ set_plane_src(&mock->state, 0, 0, 1024 << 16, 768 << 16);
+ /* 2 damage clips. */
+ set_damage_clip(&damage[0], 20, 30, 200, 180);
+ set_damage_clip(&damage[1], 240, 200, 280, 250);
+ set_damage_blob(&damage_blob, &damage[0], sizeof(damage));
+ set_plane_damage(&mock->state, &damage_blob);
+ drm_atomic_helper_damage_iter_init(&iter, &mock->old_state, &mock->state);
+ drm_atomic_for_each_plane_damage(&iter, &clip) {
+ if (num_hits == 0)
+ check_damage_clip(test, &clip, 20, 30, 200, 180);
+ if (num_hits == 1)
+ check_damage_clip(test, &clip, 240, 200, 280, 250);
+ num_hits++;
+ }
+
+ KUNIT_EXPECT_EQ_MSG(test, num_hits, 2, "Should return damage when set.");
+}
+
+static void igt_damage_iter_damage_one_intersect(struct kunit *test)
+{
+ struct drm_damage_mock *mock = test->priv;
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_property_blob damage_blob;
+ struct drm_mode_rect damage[2];
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ set_plane_src(&mock->old_state, 0x40002, 0x40002,
+ 0x40002 + (1024 << 16), 0x40002 + (768 << 16));
+ set_plane_src(&mock->state, 0x40002, 0x40002,
+ 0x40002 + (1024 << 16), 0x40002 + (768 << 16));
+ /* 2 damage clips, one intersect plane src. */
+ set_damage_clip(&damage[0], 20, 30, 200, 180);
+ set_damage_clip(&damage[1], 2, 2, 1360, 1360);
+ set_damage_blob(&damage_blob, &damage[0], sizeof(damage));
+ set_plane_damage(&mock->state, &damage_blob);
+ drm_atomic_helper_damage_iter_init(&iter, &mock->old_state, &mock->state);
+ drm_atomic_for_each_plane_damage(&iter, &clip) {
+ if (num_hits == 0)
+ check_damage_clip(test, &clip, 20, 30, 200, 180);
+ if (num_hits == 1)
+ check_damage_clip(test, &clip, 4, 4, 1029, 773);
+ num_hits++;
+ }
+
+ KUNIT_EXPECT_EQ_MSG(test, num_hits, 2, "Should return damage when set.");
+}
+
+static void igt_damage_iter_damage_one_outside(struct kunit *test)
+{
+ struct drm_damage_mock *mock = test->priv;
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_property_blob damage_blob;
+ struct drm_mode_rect damage[2];
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ set_plane_src(&mock->old_state, 0, 0, 1024 << 16, 768 << 16);
+ set_plane_src(&mock->state, 0, 0, 1024 << 16, 768 << 16);
+ /* 2 damage clips, one outside plane src. */
+ set_damage_clip(&damage[0], 1360, 1360, 1380, 1380);
+ set_damage_clip(&damage[1], 240, 200, 280, 250);
+ set_damage_blob(&damage_blob, &damage[0], sizeof(damage));
+ set_plane_damage(&mock->state, &damage_blob);
+ drm_atomic_helper_damage_iter_init(&iter, &mock->old_state, &mock->state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ KUNIT_EXPECT_EQ_MSG(test, num_hits, 1, "Should return damage when set.");
+ check_damage_clip(test, &clip, 240, 200, 280, 250);
+}
+
+static void igt_damage_iter_damage_src_moved(struct kunit *test)
+{
+ struct drm_damage_mock *mock = test->priv;
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_property_blob damage_blob;
+ struct drm_mode_rect damage[2];
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ set_plane_src(&mock->old_state, 0x40002, 0x40002,
+ 0x40002 + (1024 << 16), 0x40002 + (768 << 16));
+ set_plane_src(&mock->state, 0x3fffe, 0x3fffe,
+ 0x3fffe + (1024 << 16), 0x3fffe + (768 << 16));
+ /* 2 damage clips, one outside plane src. */
+ set_damage_clip(&damage[0], 1360, 1360, 1380, 1380);
+ set_damage_clip(&damage[1], 240, 200, 280, 250);
+ set_damage_blob(&damage_blob, &damage[0], sizeof(damage));
+ set_plane_damage(&mock->state, &damage_blob);
+ drm_atomic_helper_damage_iter_init(&iter, &mock->old_state, &mock->state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ KUNIT_EXPECT_EQ_MSG(test, num_hits, 1,
+ "Should return round off plane src as damage.");
+ check_damage_clip(test, &clip, 3, 3, 1028, 772);
+}
+
+static void igt_damage_iter_damage_not_visible(struct kunit *test)
+{
+ struct drm_damage_mock *mock = test->priv;
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_property_blob damage_blob;
+ struct drm_mode_rect damage[2];
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ mock->state.visible = false;
+
+ set_plane_src(&mock->old_state, 0x40002, 0x40002,
+ 0x40002 + (1024 << 16), 0x40002 + (768 << 16));
+ set_plane_src(&mock->state, 0x3fffe, 0x3fffe,
+ 0x3fffe + (1024 << 16), 0x3fffe + (768 << 16));
+ /* 2 damage clips, one outside plane src. */
+ set_damage_clip(&damage[0], 1360, 1360, 1380, 1380);
+ set_damage_clip(&damage[1], 240, 200, 280, 250);
+ set_damage_blob(&damage_blob, &damage[0], sizeof(damage));
+ set_plane_damage(&mock->state, &damage_blob);
+ drm_atomic_helper_damage_iter_init(&iter, &mock->old_state, &mock->state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ KUNIT_EXPECT_EQ_MSG(test, num_hits, 0, "Should not return any damage.");
+}
+
+static struct kunit_case drm_damage_helper_tests[] = {
+ KUNIT_CASE(igt_damage_iter_no_damage),
+ KUNIT_CASE(igt_damage_iter_no_damage_fractional_src),
+ KUNIT_CASE(igt_damage_iter_no_damage_src_moved),
+ KUNIT_CASE(igt_damage_iter_no_damage_fractional_src_moved),
+ KUNIT_CASE(igt_damage_iter_no_damage_not_visible),
+ KUNIT_CASE(igt_damage_iter_no_damage_no_crtc),
+ KUNIT_CASE(igt_damage_iter_no_damage_no_fb),
+ KUNIT_CASE(igt_damage_iter_simple_damage),
+ KUNIT_CASE(igt_damage_iter_single_damage),
+ KUNIT_CASE(igt_damage_iter_single_damage_intersect_src),
+ KUNIT_CASE(igt_damage_iter_single_damage_outside_src),
+ KUNIT_CASE(igt_damage_iter_single_damage_fractional_src),
+ KUNIT_CASE(igt_damage_iter_single_damage_intersect_fractional_src),
+ KUNIT_CASE(igt_damage_iter_single_damage_outside_fractional_src),
+ KUNIT_CASE(igt_damage_iter_single_damage_src_moved),
+ KUNIT_CASE(igt_damage_iter_single_damage_fractional_src_moved),
+ KUNIT_CASE(igt_damage_iter_damage),
+ KUNIT_CASE(igt_damage_iter_damage_one_intersect),
+ KUNIT_CASE(igt_damage_iter_damage_one_outside),
+ KUNIT_CASE(igt_damage_iter_damage_src_moved),
+ KUNIT_CASE(igt_damage_iter_damage_not_visible),
+ { }
+};
+
+static struct kunit_suite drm_damage_helper_test_suite = {
+ .name = "drm_damage_helper",
+ .init = drm_damage_helper_init,
+ .test_cases = drm_damage_helper_tests,
+};
+
+kunit_test_suite(drm_damage_helper_test_suite);
+
+MODULE_LICENSE("GPL");
--
2.36.1