From: Alex Hung <[email protected]> Add KUnit tests for helper functions in amdgpu_dm_connector.c, including both pure helper tests and DRM mock-based tests.
Tests cover: - get_subconnector_type(): all dongle types and unknown default - get_output_content_type(): all content type mappings and unknown default - adjust_colour_depth_from_display_info(): depth reduction from 12bpc to 10bpc, 16bpc no-fallback, YCbCr420 clock halving, and no-fit rejection - get_output_color_space(): RGB full/limited, YCbCr default 709/601, BT601/709 with Y_ONLY, OPRGB, BT2020 RGB/YCC paths - convert_dc_color_depth_into_bpc(): all depths and undefined default - convert_color_depth_from_display_info(): non-Y420 bpc values, Y420 default/10/12/16bpc, requested odd bpc rounding, unsupported bpc, and requested_bpc capping - to_drm_connector_type(): HDMI, eDP, LVDS, RGB, DP/MST, DVI single and dual link DVII/DVID, virtual, and unknown - is_duplicate_mode(): empty list, match, no-match, and same-size different-clock cases - amdgpu_dm_get_encoder_crtc_mask(): 1-6 CRTCs and default - get_aspect_ratio(): all HDMI picture aspect ratios - decide_crtc_timing_for_drm_display_mode(): scale enabled, matching mode, no copy, and no crtc_clock cases - amdgpu_dm_connector_funcs_reset(): default fields, eDP ABM level set, and eDP ABM disabled - amdgpu_dm_connector_atomic_duplicate_state(): field copy verification - amdgpu_dm_fill_hdr_info_packet(): null metadata early return and output zeroing - amdgpu_dm_connector_atomic_set_property(): scaling center/aspect/ fullscreen/none/unchanged, underscan hborder/vborder/enable, abm sysfs control/level off/level value, and unknown property -EINVAL - amdgpu_dm_connector_atomic_get_property(): scaling center/aspect/ full/off, underscan borders, abm sysfs allowed/level/disabled, and unknown property -EINVAL - amdgpu_dm_get_highest_refresh_rate_mode(): null writeback, cached base mode, and preferred mode selection - amdgpu_dm_is_freesync_video_mode(): null mode, match, and no-match cases Assisted-by: Copilot:Claude-Opus-4.8 Reviewed-by: Bhawanpreet Lakha <[email protected]> Signed-off-by: Alex Hung <[email protected]> Signed-off-by: Chenyu Chen <[email protected]> --- .../display/amdgpu_dm/amdgpu_dm_connector.c | 33 +- .../display/amdgpu_dm/amdgpu_dm_connector.h | 15 + .../drm/amd/display/amdgpu_dm/tests/Makefile | 1 + .../tests/amdgpu_dm_connector_test.c | 2142 +++++++++++++++++ 4 files changed, 2184 insertions(+), 7 deletions(-) create mode 100644 drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_connector_test.c diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_connector.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_connector.c index 59091ee32099..c9377a9e8e6a 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_connector.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_connector.c @@ -42,6 +42,7 @@ #include "amdgpu_display.h" #include "amdgpu_dm.h" #include "amdgpu_dm_connector.h" +#include "amdgpu_dm_kunit_helpers.h" #include "amdgpu_dm_plane.h" #include "amdgpu_dm_crtc.h" #include "amdgpu_dm_wb.h" @@ -188,6 +189,7 @@ int amdgpu_dm_get_encoder_crtc_mask(struct amdgpu_device *adev) return 0x3f; } } +EXPORT_IF_KUNIT(amdgpu_dm_get_encoder_crtc_mask); int amdgpu_dm_encoder_init(struct drm_device *dev, struct amdgpu_encoder *aencoder, @@ -213,7 +215,7 @@ int amdgpu_dm_encoder_init(struct drm_device *dev, return res; } -static enum drm_mode_subconnector get_subconnector_type(struct dc_link *link) +STATIC_IFN_KUNIT enum drm_mode_subconnector get_subconnector_type(struct dc_link *link) { switch (link->dpcd_caps.dongle_type) { case DISPLAY_DONGLE_NONE: @@ -231,6 +233,7 @@ static enum drm_mode_subconnector get_subconnector_type(struct dc_link *link) return DRM_MODE_SUBCONNECTOR_Unknown; } } +EXPORT_IF_KUNIT(get_subconnector_type); static void update_subconnector_property(struct amdgpu_dm_connector *aconnector) { @@ -662,13 +665,15 @@ amdgpu_dm_convert_color_depth_from_display_info(const struct drm_connector *conn return COLOR_DEPTH_UNDEFINED; } } +EXPORT_IF_KUNIT(amdgpu_dm_convert_color_depth_from_display_info); -static enum dc_aspect_ratio +STATIC_IFN_KUNIT enum dc_aspect_ratio get_aspect_ratio(const struct drm_display_mode *mode_in) { /* 1-1 mapping, since both enums follow the HDMI spec. */ return (enum dc_aspect_ratio) mode_in->picture_aspect_ratio; } +EXPORT_IF_KUNIT(get_aspect_ratio); enum dc_color_space amdgpu_dm_get_output_color_space(const struct dc_crtc_timing *dc_crtc_timing, @@ -728,8 +733,9 @@ amdgpu_dm_get_output_color_space(const struct dc_crtc_timing *dc_crtc_timing, return color_space; } +EXPORT_IF_KUNIT(amdgpu_dm_get_output_color_space); -static enum display_content_type +STATIC_IFN_KUNIT enum display_content_type get_output_content_type(const struct drm_connector_state *connector_state) { switch (connector_state->content_type) { @@ -746,8 +752,9 @@ get_output_content_type(const struct drm_connector_state *connector_state) return DISPLAY_CONTENT_TYPE_GAME; } } +EXPORT_IF_KUNIT(get_output_content_type); -static bool adjust_colour_depth_from_display_info( +STATIC_IFN_KUNIT bool adjust_colour_depth_from_display_info( struct dc_crtc_timing *timing_out, const struct drm_display_info *info) { @@ -783,6 +790,7 @@ static bool adjust_colour_depth_from_display_info( } while (--depth > COLOR_DEPTH_666); return false; } +EXPORT_IF_KUNIT(adjust_colour_depth_from_display_info); static void fill_stream_properties_from_drm_display_mode( struct dc_stream_state *stream, @@ -924,7 +932,7 @@ copy_crtc_timing_for_drm_display_mode(const struct drm_display_mode *src_mode, dst_mode->crtc_vtotal = src_mode->crtc_vtotal; } -static void +STATIC_IFN_KUNIT void decide_crtc_timing_for_drm_display_mode(struct drm_display_mode *drm_mode, const struct drm_display_mode *native_mode, bool scale_enabled) @@ -939,6 +947,7 @@ decide_crtc_timing_for_drm_display_mode(struct drm_display_mode *drm_mode, /* no scaling nor amdgpu inserted, no need to patch */ } } +EXPORT_IF_KUNIT(decide_crtc_timing_for_drm_display_mode); static struct dc_sink * create_fake_sink(struct drm_device *dev, struct dc_link *link) @@ -1044,6 +1053,7 @@ amdgpu_dm_get_highest_refresh_rate_mode(struct amdgpu_dm_connector *aconnector, drm_mode_copy(&aconnector->freesync_vid_base, m_pref); return m_pref; } +EXPORT_IF_KUNIT(amdgpu_dm_get_highest_refresh_rate_mode); bool amdgpu_dm_is_freesync_video_mode(const struct drm_display_mode *mode, @@ -1072,6 +1082,7 @@ bool amdgpu_dm_is_freesync_video_mode(const struct drm_display_mode *mode, else return true; } +EXPORT_IF_KUNIT(amdgpu_dm_is_freesync_video_mode); #if defined(CONFIG_DRM_AMD_DC_FP) static void update_dsc_caps(struct amdgpu_dm_connector *aconnector, @@ -1654,6 +1665,7 @@ int amdgpu_dm_connector_atomic_set_property(struct drm_connector *connector, return ret; } +EXPORT_IF_KUNIT(amdgpu_dm_connector_atomic_set_property); int amdgpu_dm_connector_atomic_get_property(struct drm_connector *connector, const struct drm_connector_state *state, @@ -1703,6 +1715,7 @@ int amdgpu_dm_connector_atomic_get_property(struct drm_connector *connector, return ret; } +EXPORT_IF_KUNIT(amdgpu_dm_connector_atomic_get_property); static void amdgpu_dm_connector_unregister(struct drm_connector *connector) { @@ -1788,6 +1801,7 @@ void amdgpu_dm_connector_funcs_reset(struct drm_connector *connector) __drm_atomic_helper_connector_reset(connector, &state->base); } } +EXPORT_IF_KUNIT(amdgpu_dm_connector_funcs_reset); struct drm_connector_state * amdgpu_dm_connector_atomic_duplicate_state(struct drm_connector *connector) @@ -1813,6 +1827,7 @@ amdgpu_dm_connector_atomic_duplicate_state(struct drm_connector *connector) new_state->pbn = state->pbn; return &new_state->base; } +EXPORT_IF_KUNIT(amdgpu_dm_connector_atomic_duplicate_state); static int amdgpu_dm_connector_late_register(struct drm_connector *connector) @@ -2240,6 +2255,7 @@ int amdgpu_dm_fill_hdr_info_packet(const struct drm_connector_state *state, return 0; } +EXPORT_IF_KUNIT(amdgpu_dm_fill_hdr_info_packet); static int amdgpu_dm_connector_atomic_check(struct drm_connector *conn, @@ -2355,8 +2371,9 @@ int amdgpu_dm_convert_dc_color_depth_into_bpc(enum dc_color_depth display_color_ } return 0; } +EXPORT_IF_KUNIT(amdgpu_dm_convert_dc_color_depth_into_bpc); -static int to_drm_connector_type(enum signal_type st, uint32_t connector_id) +STATIC_IFN_KUNIT int to_drm_connector_type(enum signal_type st, uint32_t connector_id) { switch (st) { case SIGNAL_TYPE_HDMI_TYPE_A: @@ -2384,6 +2401,7 @@ static int to_drm_connector_type(enum signal_type st, uint32_t connector_id) return DRM_MODE_CONNECTOR_Unknown; } } +EXPORT_IF_KUNIT(to_drm_connector_type); static struct drm_encoder *amdgpu_dm_connector_to_encoder(struct drm_connector *connector) { @@ -2579,7 +2597,7 @@ static void amdgpu_dm_connector_ddc_get_modes(struct drm_connector *connector, } } -static bool is_duplicate_mode(struct amdgpu_dm_connector *aconnector, +STATIC_IFN_KUNIT bool is_duplicate_mode(struct amdgpu_dm_connector *aconnector, struct drm_display_mode *mode) { struct drm_display_mode *m; @@ -2591,6 +2609,7 @@ static bool is_duplicate_mode(struct amdgpu_dm_connector *aconnector, return false; } +EXPORT_IF_KUNIT(is_duplicate_mode); static uint add_fs_modes(struct amdgpu_dm_connector *aconnector) { diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_connector.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_connector.h index 0e8e4756cf17..ab6938a0b8ed 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_connector.h +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_connector.h @@ -34,6 +34,7 @@ struct amdgpu_encoder; struct amdgpu_i2c_adapter; struct dc_crtc_timing; struct dc_link; +enum signal_type; struct dc_state; struct dc_stream_state; struct ddc_service; @@ -144,4 +145,18 @@ int amdgpu_dm_encoder_init(struct drm_device *dev, struct amdgpu_encoder *aencoder, uint32_t link_index); +#if IS_ENABLED(CONFIG_DRM_AMD_DC_KUNIT_TEST) +enum drm_mode_subconnector get_subconnector_type(struct dc_link *link); +enum display_content_type +get_output_content_type(const struct drm_connector_state *connector_state); +bool adjust_colour_depth_from_display_info(struct dc_crtc_timing *timing_out, + const struct drm_display_info *info); + +int to_drm_connector_type(enum signal_type st, uint32_t connector_id); +bool is_duplicate_mode(struct amdgpu_dm_connector *aconnector, struct drm_display_mode *mode); +enum dc_aspect_ratio get_aspect_ratio(const struct drm_display_mode *mode_in); +void decide_crtc_timing_for_drm_display_mode(struct drm_display_mode *drm_mode, + const struct drm_display_mode *native_mode, + bool scale_enabled); +#endif #endif /* __AMDGPU_DM_CONNECTOR_H__ */ diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/tests/Makefile b/drivers/gpu/drm/amd/display/amdgpu_dm/tests/Makefile index 4bd8d1fa0fee..422eef0bfe49 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/tests/Makefile +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/tests/Makefile @@ -16,6 +16,7 @@ obj-$(CONFIG_DRM_AMD_DC_KUNIT_TEST) += amdgpu_dm_hdcp_test.o obj-$(CONFIG_DRM_AMD_DC_KUNIT_TEST) += amdgpu_dm_audio_test.o obj-$(CONFIG_DRM_AMD_DC_KUNIT_TEST) += amdgpu_dm_color_test.o obj-$(CONFIG_DRM_AMD_DC_KUNIT_TEST) += amdgpu_dm_colorop_test.o +obj-$(CONFIG_DRM_AMD_DC_KUNIT_TEST) += amdgpu_dm_connector_test.o obj-$(CONFIG_DRM_AMD_DC_KUNIT_TEST) += amdgpu_dm_backlight_test.o obj-$(CONFIG_DRM_AMD_DC_KUNIT_TEST) += amdgpu_dm_dmub_test.o obj-$(CONFIG_DRM_AMD_DC_KUNIT_TEST) += amdgpu_dm_psr_test.o diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_connector_test.c b/drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_connector_test.c new file mode 100644 index 000000000000..34e40d2a9d2c --- /dev/null +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_connector_test.c @@ -0,0 +1,2142 @@ +// SPDX-License-Identifier: GPL-2.0 OR MIT +/* + * KUnit tests for amdgpu_dm_connector.c + * + * Copyright 2026 Advanced Micro Devices, Inc. + */ + +#include <kunit/test.h> +#include <drm/drm_atomic_state_helper.h> +#include <drm/drm_connector.h> +#include <drm/drm_edid.h> +#include <drm/drm_kunit_helpers.h> +#include <linux/hdmi.h> + +#include "dc.h" +#include "amdgpu.h" +#include "amdgpu_mode.h" +#include "amdgpu_display.h" +#include "amdgpu_dm.h" +#include "amdgpu_dm_connector.h" +#include "amdgpu_dm_backlight.h" +#include "include/grph_object_id.h" + +/* Tests for get_subconnector_type() */ + +/** + * dm_test_subconnector_type_none - Test Subconnector type none + * @test: The KUnit test context + */ +static void dm_test_subconnector_type_none(struct kunit *test) +{ + struct dc_link link = {}; + + link.dpcd_caps.dongle_type = DISPLAY_DONGLE_NONE; + KUNIT_EXPECT_EQ(test, (int)get_subconnector_type(&link), (int)DRM_MODE_SUBCONNECTOR_Native); +} + +/** + * dm_test_subconnector_type_vga - Test Subconnector type vga + * @test: The KUnit test context + */ +static void dm_test_subconnector_type_vga(struct kunit *test) +{ + struct dc_link link = {}; + + link.dpcd_caps.dongle_type = DISPLAY_DONGLE_DP_VGA_CONVERTER; + KUNIT_EXPECT_EQ(test, (int)get_subconnector_type(&link), (int)DRM_MODE_SUBCONNECTOR_VGA); +} + +/** + * dm_test_subconnector_type_dvi_converter - Test Subconnector type dvi converter + * @test: The KUnit test context + */ +static void dm_test_subconnector_type_dvi_converter(struct kunit *test) +{ + struct dc_link link = {}; + + link.dpcd_caps.dongle_type = DISPLAY_DONGLE_DP_DVI_CONVERTER; + KUNIT_EXPECT_EQ(test, (int)get_subconnector_type(&link), (int)DRM_MODE_SUBCONNECTOR_DVID); +} + +/** + * dm_test_subconnector_type_dvi_dongle - Test Subconnector type dvi dongle + * @test: The KUnit test context + */ +static void dm_test_subconnector_type_dvi_dongle(struct kunit *test) +{ + struct dc_link link = {}; + + link.dpcd_caps.dongle_type = DISPLAY_DONGLE_DP_DVI_DONGLE; + KUNIT_EXPECT_EQ(test, (int)get_subconnector_type(&link), (int)DRM_MODE_SUBCONNECTOR_DVID); +} + +/** + * dm_test_subconnector_type_hdmi_converter - Test Subconnector type hdmi converter + * @test: The KUnit test context + */ +static void dm_test_subconnector_type_hdmi_converter(struct kunit *test) +{ + struct dc_link link = {}; + + link.dpcd_caps.dongle_type = DISPLAY_DONGLE_DP_HDMI_CONVERTER; + KUNIT_EXPECT_EQ(test, (int)get_subconnector_type(&link), (int)DRM_MODE_SUBCONNECTOR_HDMIA); +} + +/** + * dm_test_subconnector_type_hdmi_dongle - Test Subconnector type hdmi dongle + * @test: The KUnit test context + */ +static void dm_test_subconnector_type_hdmi_dongle(struct kunit *test) +{ + struct dc_link link = {}; + + link.dpcd_caps.dongle_type = DISPLAY_DONGLE_DP_HDMI_DONGLE; + KUNIT_EXPECT_EQ(test, (int)get_subconnector_type(&link), (int)DRM_MODE_SUBCONNECTOR_HDMIA); +} + +/** + * dm_test_subconnector_type_mismatched - Test Subconnector type mismatched + * @test: The KUnit test context + */ +static void dm_test_subconnector_type_mismatched(struct kunit *test) +{ + struct dc_link link = {}; + + link.dpcd_caps.dongle_type = DISPLAY_DONGLE_DP_HDMI_MISMATCHED_DONGLE; + KUNIT_EXPECT_EQ(test, (int)get_subconnector_type(&link), (int)DRM_MODE_SUBCONNECTOR_Unknown); +} + +/** + * dm_test_subconnector_type_default_unknown - Test Subconnector type default unknown + * @test: The KUnit test context + */ +static void dm_test_subconnector_type_default_unknown(struct kunit *test) +{ + struct dc_link link = {}; + + link.dpcd_caps.dongle_type = (typeof(link.dpcd_caps.dongle_type))0x7f; + KUNIT_EXPECT_EQ(test, (int)get_subconnector_type(&link), (int)DRM_MODE_SUBCONNECTOR_Unknown); +} + +/* Tests for get_output_content_type() */ + +/** + * dm_test_content_type_no_data - Test Content type no data + * @test: The KUnit test context + */ +static void dm_test_content_type_no_data(struct kunit *test) +{ + struct drm_connector_state state = {}; + + state.content_type = DRM_MODE_CONTENT_TYPE_NO_DATA; + KUNIT_EXPECT_EQ(test, (int)get_output_content_type(&state), (int)DISPLAY_CONTENT_TYPE_NO_DATA); +} + +/** + * dm_test_content_type_graphics - Test Content type graphics + * @test: The KUnit test context + */ +static void dm_test_content_type_graphics(struct kunit *test) +{ + struct drm_connector_state state = {}; + + state.content_type = DRM_MODE_CONTENT_TYPE_GRAPHICS; + KUNIT_EXPECT_EQ(test, (int)get_output_content_type(&state), (int)DISPLAY_CONTENT_TYPE_GRAPHICS); +} + +/** + * dm_test_content_type_photo - Test Content type photo + * @test: The KUnit test context + */ +static void dm_test_content_type_photo(struct kunit *test) +{ + struct drm_connector_state state = {}; + + state.content_type = DRM_MODE_CONTENT_TYPE_PHOTO; + KUNIT_EXPECT_EQ(test, (int)get_output_content_type(&state), (int)DISPLAY_CONTENT_TYPE_PHOTO); +} + +/** + * dm_test_content_type_cinema - Test Content type cinema + * @test: The KUnit test context + */ +static void dm_test_content_type_cinema(struct kunit *test) +{ + struct drm_connector_state state = {}; + + state.content_type = DRM_MODE_CONTENT_TYPE_CINEMA; + KUNIT_EXPECT_EQ(test, (int)get_output_content_type(&state), (int)DISPLAY_CONTENT_TYPE_CINEMA); +} + +/** + * dm_test_content_type_game - Test Content type game + * @test: The KUnit test context + */ +static void dm_test_content_type_game(struct kunit *test) +{ + struct drm_connector_state state = {}; + + state.content_type = DRM_MODE_CONTENT_TYPE_GAME; + KUNIT_EXPECT_EQ(test, (int)get_output_content_type(&state), (int)DISPLAY_CONTENT_TYPE_GAME); +} + +/** + * dm_test_content_type_unknown_defaults_no_data - Test unknown content type defaults to no data + * @test: The KUnit test context + */ +static void dm_test_content_type_unknown_defaults_no_data(struct kunit *test) +{ + struct drm_connector_state state = {}; + + state.content_type = 0x7f; + KUNIT_EXPECT_EQ(test, (int)get_output_content_type(&state), + (int)DISPLAY_CONTENT_TYPE_NO_DATA); +} + +/* Tests for adjust_colour_depth_from_display_info() */ + +/** + * dm_test_adjust_colour_depth_fits_at_888 - Test Adjust colour depth fits at 888 + * @test: The KUnit test context + */ +static void dm_test_adjust_colour_depth_fits_at_888(struct kunit *test) +{ + struct dc_crtc_timing timing = {}; + struct drm_display_info info = {}; + + /* 1080p @ 148500 KHz = 1485000 in 100Hz units */ + timing.pix_clk_100hz = 1485000; + timing.display_color_depth = COLOR_DEPTH_888; + timing.pixel_encoding = PIXEL_ENCODING_RGB; + info.max_tmds_clock = 150000; /* 150 MHz */ + + KUNIT_EXPECT_TRUE(test, adjust_colour_depth_from_display_info(&timing, &info)); + KUNIT_EXPECT_EQ(test, (int)timing.display_color_depth, (int)COLOR_DEPTH_888); +} + +/** + * dm_test_adjust_colour_depth_reduces_to_888 - Test Adjust colour depth reduces to 888 + * @test: The KUnit test context + */ +static void dm_test_adjust_colour_depth_reduces_to_888(struct kunit *test) +{ + struct dc_crtc_timing timing = {}; + struct drm_display_info info = {}; + + /* Request 10bpc but TMDS limit only allows 8bpc */ + timing.pix_clk_100hz = 1485000; + timing.display_color_depth = COLOR_DEPTH_101010; + timing.pixel_encoding = PIXEL_ENCODING_RGB; + /* 10bpc would need 148500*30/24 = 185625 KHz, exceeds limit */ + info.max_tmds_clock = 160000; + + KUNIT_EXPECT_TRUE(test, adjust_colour_depth_from_display_info(&timing, &info)); + KUNIT_EXPECT_EQ(test, (int)timing.display_color_depth, (int)COLOR_DEPTH_888); +} + +/** + * dm_test_adjust_colour_depth_10bpc_passes - Test Adjust colour depth 10bpc passes + * @test: The KUnit test context + */ +static void dm_test_adjust_colour_depth_10bpc_passes(struct kunit *test) +{ + struct dc_crtc_timing timing = {}; + struct drm_display_info info = {}; + + timing.pix_clk_100hz = 1485000; + timing.display_color_depth = COLOR_DEPTH_101010; + timing.pixel_encoding = PIXEL_ENCODING_RGB; + /* 10bpc needs 185625 KHz, allow it */ + info.max_tmds_clock = 200000; + + KUNIT_EXPECT_TRUE(test, adjust_colour_depth_from_display_info(&timing, &info)); + KUNIT_EXPECT_EQ(test, (int)timing.display_color_depth, (int)COLOR_DEPTH_101010); +} + +/** + * dm_test_adjust_colour_depth_420_halves_clk - Test Adjust colour depth 420 halves clk + * @test: The KUnit test context + */ +static void dm_test_adjust_colour_depth_420_halves_clk(struct kunit *test) +{ + struct dc_crtc_timing timing = {}; + struct drm_display_info info = {}; + + /* 4K @ 594000 KHz = 5940000 in 100Hz units */ + timing.pix_clk_100hz = 5940000; + timing.display_color_depth = COLOR_DEPTH_101010; + timing.pixel_encoding = PIXEL_ENCODING_YCBCR420; + /* With 420: effective = 594000/2 = 297000, 10bpc = 297000*30/24 = 371250 */ + info.max_tmds_clock = 400000; + + KUNIT_EXPECT_TRUE(test, adjust_colour_depth_from_display_info(&timing, &info)); + KUNIT_EXPECT_EQ(test, (int)timing.display_color_depth, (int)COLOR_DEPTH_101010); +} + +/** + * dm_test_adjust_colour_depth_reduces_12bpc_to_10bpc - Test Adjust colour + * depth reduces 12bpc to 10bpc + * @test: The KUnit test context + */ +static void dm_test_adjust_colour_depth_reduces_12bpc_to_10bpc(struct kunit *test) +{ + struct dc_crtc_timing timing = {}; + struct drm_display_info info = {}; + + timing.pix_clk_100hz = 1485000; + timing.display_color_depth = COLOR_DEPTH_121212; + timing.pixel_encoding = PIXEL_ENCODING_RGB; + info.max_tmds_clock = 190000; + + KUNIT_EXPECT_TRUE(test, adjust_colour_depth_from_display_info(&timing, &info)); + KUNIT_EXPECT_EQ(test, (int)timing.display_color_depth, (int)COLOR_DEPTH_101010); +} + +/** + * dm_test_adjust_colour_depth_16bpc_no_fallback - Test Adjust colour depth + * 16bpc cannot fall back + * @test: The KUnit test context + */ +static void dm_test_adjust_colour_depth_16bpc_no_fallback(struct kunit *test) +{ + struct dc_crtc_timing timing = {}; + struct drm_display_info info = {}; + + /* 16bpc that exceeds limit cannot reduce because the next enum + * value (COLOR_DEPTH_141414) is not a valid HDMI depth. + */ + timing.pix_clk_100hz = 1485000; + timing.display_color_depth = COLOR_DEPTH_161616; + timing.pixel_encoding = PIXEL_ENCODING_RGB; + info.max_tmds_clock = 230000; + + KUNIT_EXPECT_FALSE(test, adjust_colour_depth_from_display_info(&timing, &info)); +} + +/** + * dm_test_adjust_colour_depth_none_fits - Test Adjust colour depth none fits + * @test: The KUnit test context + */ +static void dm_test_adjust_colour_depth_none_fits(struct kunit *test) +{ + struct dc_crtc_timing timing = {}; + struct drm_display_info info = {}; + + /* Even 8bpc doesn't fit */ + timing.pix_clk_100hz = 1485000; + timing.display_color_depth = COLOR_DEPTH_888; + timing.pixel_encoding = PIXEL_ENCODING_RGB; + info.max_tmds_clock = 100000; /* Too low */ + + KUNIT_EXPECT_FALSE(test, adjust_colour_depth_from_display_info(&timing, &info)); +} + +/** + * dm_test_adjust_colour_depth_invalid_depth - Test Adjust colour depth invalid depth + * @test: The KUnit test context + */ +static void dm_test_adjust_colour_depth_invalid_depth(struct kunit *test) +{ + struct dc_crtc_timing timing = {}; + struct drm_display_info info = {}; + + timing.pix_clk_100hz = 1485000; + timing.display_color_depth = COLOR_DEPTH_141414; + timing.pixel_encoding = PIXEL_ENCODING_RGB; + info.max_tmds_clock = 400000; + + KUNIT_EXPECT_FALSE(test, adjust_colour_depth_from_display_info(&timing, &info)); + KUNIT_EXPECT_EQ(test, (int)timing.display_color_depth, (int)COLOR_DEPTH_141414); +} + +/* Tests for amdgpu_dm_get_output_color_space() */ + +/** + * dm_test_output_color_space_default_rgb_full - Test Output color space default rgb full + * @test: The KUnit test context + */ +static void dm_test_output_color_space_default_rgb_full(struct kunit *test) +{ + struct dc_crtc_timing timing = {}; + struct drm_connector_state state = {}; + + timing.pixel_encoding = PIXEL_ENCODING_RGB; + state.colorspace = DRM_MODE_COLORIMETRY_DEFAULT; + state.hdmi.broadcast_rgb = DRM_HDMI_BROADCAST_RGB_AUTO; + + KUNIT_EXPECT_EQ(test, (int)amdgpu_dm_get_output_color_space(&timing, &state), + (int)COLOR_SPACE_SRGB); +} + +/** + * dm_test_output_color_space_default_rgb_limited - Test Output color space default rgb limited + * @test: The KUnit test context + */ +static void dm_test_output_color_space_default_rgb_limited(struct kunit *test) +{ + struct dc_crtc_timing timing = {}; + struct drm_connector_state state = {}; + + timing.pixel_encoding = PIXEL_ENCODING_RGB; + state.colorspace = DRM_MODE_COLORIMETRY_DEFAULT; + state.hdmi.broadcast_rgb = DRM_HDMI_BROADCAST_RGB_LIMITED; + + KUNIT_EXPECT_EQ(test, (int)amdgpu_dm_get_output_color_space(&timing, &state), + (int)COLOR_SPACE_SRGB_LIMITED); +} + +/** + * dm_test_output_color_space_default_ycbcr709 - Test Output color space default ycbcr709 + * @test: The KUnit test context + */ +static void dm_test_output_color_space_default_ycbcr709(struct kunit *test) +{ + struct dc_crtc_timing timing = {}; + struct drm_connector_state state = {}; + + timing.pixel_encoding = PIXEL_ENCODING_YCBCR444; + timing.pix_clk_100hz = 300000; + timing.flags.Y_ONLY = 0; + state.colorspace = DRM_MODE_COLORIMETRY_DEFAULT; + + KUNIT_EXPECT_EQ(test, (int)amdgpu_dm_get_output_color_space(&timing, &state), + (int)COLOR_SPACE_YCBCR709); +} + +/** + * dm_test_output_color_space_default_ycbcr601_limited - Test Output color space + * default ycbcr601 limited + * @test: The KUnit test context + */ +static void dm_test_output_color_space_default_ycbcr601_limited(struct kunit *test) +{ + struct dc_crtc_timing timing = {}; + struct drm_connector_state state = {}; + + timing.pixel_encoding = PIXEL_ENCODING_YCBCR444; + timing.pix_clk_100hz = 270300; + timing.flags.Y_ONLY = 1; + state.colorspace = DRM_MODE_COLORIMETRY_DEFAULT; + + KUNIT_EXPECT_EQ(test, (int)amdgpu_dm_get_output_color_space(&timing, &state), + (int)COLOR_SPACE_YCBCR601_LIMITED); +} + +/** + * dm_test_output_color_space_bt601_y_only - Test Output color space bt601 y only + * @test: The KUnit test context + */ +static void dm_test_output_color_space_bt601_y_only(struct kunit *test) +{ + struct dc_crtc_timing timing = {}; + struct drm_connector_state state = {}; + + timing.flags.Y_ONLY = 1; + state.colorspace = DRM_MODE_COLORIMETRY_BT601_YCC; + + KUNIT_EXPECT_EQ(test, (int)amdgpu_dm_get_output_color_space(&timing, &state), + (int)COLOR_SPACE_YCBCR601_LIMITED); +} + +/** + * dm_test_output_color_space_bt601 - Test Output color space bt601 + * @test: The KUnit test context + */ +static void dm_test_output_color_space_bt601(struct kunit *test) +{ + struct dc_crtc_timing timing = {}; + struct drm_connector_state state = {}; + + timing.flags.Y_ONLY = 0; + state.colorspace = DRM_MODE_COLORIMETRY_BT601_YCC; + + KUNIT_EXPECT_EQ(test, (int)amdgpu_dm_get_output_color_space(&timing, &state), + (int)COLOR_SPACE_YCBCR601); +} + +/** + * dm_test_output_color_space_bt709 - Test Output color space bt709 + * @test: The KUnit test context + */ +static void dm_test_output_color_space_bt709(struct kunit *test) +{ + struct dc_crtc_timing timing = {}; + struct drm_connector_state state = {}; + + timing.flags.Y_ONLY = 0; + state.colorspace = DRM_MODE_COLORIMETRY_BT709_YCC; + + KUNIT_EXPECT_EQ(test, (int)amdgpu_dm_get_output_color_space(&timing, &state), + (int)COLOR_SPACE_YCBCR709); +} + +/** + * dm_test_output_color_space_bt709_y_only - Test Output color space bt709 y only + * @test: The KUnit test context + */ +static void dm_test_output_color_space_bt709_y_only(struct kunit *test) +{ + struct dc_crtc_timing timing = {}; + struct drm_connector_state state = {}; + + timing.flags.Y_ONLY = 1; + state.colorspace = DRM_MODE_COLORIMETRY_BT709_YCC; + + KUNIT_EXPECT_EQ(test, (int)amdgpu_dm_get_output_color_space(&timing, &state), + (int)COLOR_SPACE_YCBCR709_LIMITED); +} + +/** + * dm_test_output_color_space_oprgb - Test Output color space oprgb + * @test: The KUnit test context + */ +static void dm_test_output_color_space_oprgb(struct kunit *test) +{ + struct dc_crtc_timing timing = {}; + struct drm_connector_state state = {}; + + state.colorspace = DRM_MODE_COLORIMETRY_OPRGB; + + KUNIT_EXPECT_EQ(test, (int)amdgpu_dm_get_output_color_space(&timing, &state), + (int)COLOR_SPACE_ADOBERGB); +} + +/** + * dm_test_output_color_space_bt2020_rgb - Test Output color space bt2020 rgb + * @test: The KUnit test context + */ +static void dm_test_output_color_space_bt2020_rgb(struct kunit *test) +{ + struct dc_crtc_timing timing = {}; + struct drm_connector_state state = {}; + + timing.pixel_encoding = PIXEL_ENCODING_RGB; + state.colorspace = DRM_MODE_COLORIMETRY_BT2020_RGB; + + KUNIT_EXPECT_EQ(test, (int)amdgpu_dm_get_output_color_space(&timing, &state), + (int)COLOR_SPACE_2020_RGB_FULLRANGE); +} + +/** + * dm_test_output_color_space_bt2020_ycc - Test Output color space bt2020 ycc + * @test: The KUnit test context + */ +static void dm_test_output_color_space_bt2020_ycc(struct kunit *test) +{ + struct dc_crtc_timing timing = {}; + struct drm_connector_state state = {}; + + timing.pixel_encoding = PIXEL_ENCODING_YCBCR422; + state.colorspace = DRM_MODE_COLORIMETRY_BT2020_YCC; + + KUNIT_EXPECT_EQ(test, (int)amdgpu_dm_get_output_color_space(&timing, &state), + (int)COLOR_SPACE_2020_YCBCR_LIMITED); +} + +/* Tests for amdgpu_dm_convert_dc_color_depth_into_bpc() */ + +/** + * dm_test_convert_color_depth_bpc_mappings - Test Convert color depth bpc mappings + * @test: The KUnit test context + */ +static void dm_test_convert_color_depth_bpc_mappings(struct kunit *test) +{ + KUNIT_EXPECT_EQ(test, amdgpu_dm_convert_dc_color_depth_into_bpc(COLOR_DEPTH_666), 6); + KUNIT_EXPECT_EQ(test, amdgpu_dm_convert_dc_color_depth_into_bpc(COLOR_DEPTH_888), 8); + KUNIT_EXPECT_EQ(test, amdgpu_dm_convert_dc_color_depth_into_bpc(COLOR_DEPTH_101010), 10); + KUNIT_EXPECT_EQ(test, amdgpu_dm_convert_dc_color_depth_into_bpc(COLOR_DEPTH_121212), 12); + KUNIT_EXPECT_EQ(test, amdgpu_dm_convert_dc_color_depth_into_bpc(COLOR_DEPTH_141414), 14); + KUNIT_EXPECT_EQ(test, amdgpu_dm_convert_dc_color_depth_into_bpc(COLOR_DEPTH_161616), 16); +} + +/** + * dm_test_convert_color_depth_bpc_unknown - Test Convert color depth bpc unknown + * @test: The KUnit test context + */ +static void dm_test_convert_color_depth_bpc_unknown(struct kunit *test) +{ + KUNIT_EXPECT_EQ(test, amdgpu_dm_convert_dc_color_depth_into_bpc(COLOR_DEPTH_UNDEFINED), 0); +} + +/* Tests for amdgpu_dm_convert_color_depth_from_display_info() */ + +/** + * dm_test_color_depth_from_info_bpc8 - Test Color depth from info bpc8 + * @test: The KUnit test context + */ +static void dm_test_color_depth_from_info_bpc8(struct kunit *test) +{ + struct drm_connector *connector; + + connector = kunit_kzalloc(test, sizeof(*connector), GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, connector); + + connector->display_info.bpc = 8; + KUNIT_EXPECT_EQ(test, (int)amdgpu_dm_convert_color_depth_from_display_info(connector, false, 0), + (int)COLOR_DEPTH_888); +} + +/** + * dm_test_color_depth_from_info_bpc10 - Test Color depth from info bpc10 + * @test: The KUnit test context + */ +static void dm_test_color_depth_from_info_bpc10(struct kunit *test) +{ + struct drm_connector *connector; + + connector = kunit_kzalloc(test, sizeof(*connector), GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, connector); + + connector->display_info.bpc = 10; + KUNIT_EXPECT_EQ(test, (int)amdgpu_dm_convert_color_depth_from_display_info(connector, false, 0), + (int)COLOR_DEPTH_101010); +} + +/** + * dm_test_color_depth_from_info_zero_bpc_defaults_888 - Test Color depth from + * info zero bpc defaults 888 + * @test: The KUnit test context + */ +static void dm_test_color_depth_from_info_zero_bpc_defaults_888(struct kunit *test) +{ + struct drm_connector *connector; + + connector = kunit_kzalloc(test, sizeof(*connector), GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, connector); + + connector->display_info.bpc = 0; + KUNIT_EXPECT_EQ(test, (int)amdgpu_dm_convert_color_depth_from_display_info(connector, false, 0), + (int)COLOR_DEPTH_888); +} + +/** + * dm_test_color_depth_from_info_requested_bpc_caps - Test Color depth from info requested bpc caps + * @test: The KUnit test context + */ +static void dm_test_color_depth_from_info_requested_bpc_caps(struct kunit *test) +{ + struct drm_connector *connector; + + connector = kunit_kzalloc(test, sizeof(*connector), GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, connector); + + /* Display supports 12bpc but user requests max 10 */ + connector->display_info.bpc = 12; + KUNIT_EXPECT_EQ(test, (int)amdgpu_dm_convert_color_depth_from_display_info(connector, false, 10), + (int)COLOR_DEPTH_101010); +} + +/** + * dm_test_color_depth_from_info_y420_default - Test Color depth from info y420 default + * @test: The KUnit test context + */ +static void dm_test_color_depth_from_info_y420_default(struct kunit *test) +{ + struct drm_connector *connector; + + connector = kunit_kzalloc(test, sizeof(*connector), GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, connector); + + /* No Y420 DC modes set → 8bpc */ + KUNIT_EXPECT_EQ(test, (int)amdgpu_dm_convert_color_depth_from_display_info(connector, true, 0), + (int)COLOR_DEPTH_888); +} + +/** + * dm_test_color_depth_from_info_y420_10bpc - Test Color depth from info y420 10bpc + * @test: The KUnit test context + */ +static void dm_test_color_depth_from_info_y420_10bpc(struct kunit *test) +{ + struct drm_connector *connector; + + connector = kunit_kzalloc(test, sizeof(*connector), GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, connector); + + connector->display_info.hdmi.y420_dc_modes = DRM_EDID_YCBCR420_DC_30; + KUNIT_EXPECT_EQ(test, (int)amdgpu_dm_convert_color_depth_from_display_info(connector, true, 0), + (int)COLOR_DEPTH_101010); +} + +/** + * dm_test_color_depth_from_info_y420_12bpc - Test Color depth from info y420 12bpc + * @test: The KUnit test context + */ +static void dm_test_color_depth_from_info_y420_12bpc(struct kunit *test) +{ + struct drm_connector *connector; + + connector = kunit_kzalloc(test, sizeof(*connector), GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, connector); + + connector->display_info.hdmi.y420_dc_modes = DRM_EDID_YCBCR420_DC_36; + KUNIT_EXPECT_EQ(test, (int)amdgpu_dm_convert_color_depth_from_display_info(connector, true, 0), + (int)COLOR_DEPTH_121212); +} + +/** + * dm_test_color_depth_from_info_y420_16bpc - Test Color depth from info y420 16bpc + * @test: The KUnit test context + */ +static void dm_test_color_depth_from_info_y420_16bpc(struct kunit *test) +{ + struct drm_connector *connector; + + connector = kunit_kzalloc(test, sizeof(*connector), GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, connector); + + connector->display_info.hdmi.y420_dc_modes = DRM_EDID_YCBCR420_DC_48; + KUNIT_EXPECT_EQ(test, (int)amdgpu_dm_convert_color_depth_from_display_info(connector, true, 0), + (int)COLOR_DEPTH_161616); +} + +/** + * dm_test_color_depth_from_info_requested_odd_bpc - Test Color depth from info requested odd bpc + * @test: The KUnit test context + */ +static void dm_test_color_depth_from_info_requested_odd_bpc(struct kunit *test) +{ + struct drm_connector *connector; + + connector = kunit_kzalloc(test, sizeof(*connector), GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, connector); + + connector->display_info.bpc = 12; + KUNIT_EXPECT_EQ(test, (int)amdgpu_dm_convert_color_depth_from_display_info(connector, false, 11), + (int)COLOR_DEPTH_101010); +} + +/** + * dm_test_color_depth_from_info_unsupported_bpc - Test Color depth from info unsupported bpc + * @test: The KUnit test context + */ +static void dm_test_color_depth_from_info_unsupported_bpc(struct kunit *test) +{ + struct drm_connector *connector; + + connector = kunit_kzalloc(test, sizeof(*connector), GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, connector); + + connector->display_info.bpc = 9; + KUNIT_EXPECT_EQ(test, (int)amdgpu_dm_convert_color_depth_from_display_info(connector, false, 0), + (int)COLOR_DEPTH_UNDEFINED); +} + +/* Tests for to_drm_connector_type() */ + +/** + * dm_test_to_connector_type_hdmi - Test To connector type hdmi + * @test: The KUnit test context + */ +static void dm_test_to_connector_type_hdmi(struct kunit *test) +{ + KUNIT_EXPECT_EQ(test, to_drm_connector_type(SIGNAL_TYPE_HDMI_TYPE_A, 0), + DRM_MODE_CONNECTOR_HDMIA); +} + +/** + * dm_test_to_connector_type_edp - Test To connector type edp + * @test: The KUnit test context + */ +static void dm_test_to_connector_type_edp(struct kunit *test) +{ + KUNIT_EXPECT_EQ(test, to_drm_connector_type(SIGNAL_TYPE_EDP, 0), + DRM_MODE_CONNECTOR_eDP); +} + +/** + * dm_test_to_connector_type_lvds - Test To connector type lvds + * @test: The KUnit test context + */ +static void dm_test_to_connector_type_lvds(struct kunit *test) +{ + KUNIT_EXPECT_EQ(test, to_drm_connector_type(SIGNAL_TYPE_LVDS, 0), + DRM_MODE_CONNECTOR_LVDS); +} + +/** + * dm_test_to_connector_type_rgb - Test To connector type rgb + * @test: The KUnit test context + */ +static void dm_test_to_connector_type_rgb(struct kunit *test) +{ + KUNIT_EXPECT_EQ(test, to_drm_connector_type(SIGNAL_TYPE_RGB, 0), + DRM_MODE_CONNECTOR_VGA); +} + +/** + * dm_test_to_connector_type_dp - Test To connector type dp + * @test: The KUnit test context + */ +static void dm_test_to_connector_type_dp(struct kunit *test) +{ + KUNIT_EXPECT_EQ(test, to_drm_connector_type(SIGNAL_TYPE_DISPLAY_PORT, 0), + DRM_MODE_CONNECTOR_DisplayPort); +} + +/** + * dm_test_to_connector_type_dp_mst - Test To connector type dp mst + * @test: The KUnit test context + */ +static void dm_test_to_connector_type_dp_mst(struct kunit *test) +{ + KUNIT_EXPECT_EQ(test, to_drm_connector_type(SIGNAL_TYPE_DISPLAY_PORT_MST, 0), + DRM_MODE_CONNECTOR_DisplayPort); +} + +/** + * dm_test_to_connector_type_dvi_dvii - Test To connector type dvi dvii + * @test: The KUnit test context + */ +static void dm_test_to_connector_type_dvi_dvii(struct kunit *test) +{ + int type = to_drm_connector_type(SIGNAL_TYPE_DVI_SINGLE_LINK, CONNECTOR_ID_SINGLE_LINK_DVII); + + KUNIT_EXPECT_EQ(test, type, DRM_MODE_CONNECTOR_DVII); +} + +/** + * dm_test_to_connector_type_dual_link_dvii - Test To connector type dual link dvii + * @test: The KUnit test context + */ +static void dm_test_to_connector_type_dual_link_dvii(struct kunit *test) +{ + int type = to_drm_connector_type(SIGNAL_TYPE_DVI_DUAL_LINK, CONNECTOR_ID_DUAL_LINK_DVII); + + KUNIT_EXPECT_EQ(test, type, DRM_MODE_CONNECTOR_DVII); +} + +/** + * dm_test_to_connector_type_dvi_dvid - Test To connector type dvi dvid + * @test: The KUnit test context + */ +static void dm_test_to_connector_type_dvi_dvid(struct kunit *test) +{ + int type = to_drm_connector_type(SIGNAL_TYPE_DVI_SINGLE_LINK, CONNECTOR_ID_SINGLE_LINK_DVID); + + KUNIT_EXPECT_EQ(test, type, DRM_MODE_CONNECTOR_DVID); +} + +/** + * dm_test_to_connector_type_virtual - Test To connector type virtual + * @test: The KUnit test context + */ +static void dm_test_to_connector_type_virtual(struct kunit *test) +{ + KUNIT_EXPECT_EQ(test, to_drm_connector_type(SIGNAL_TYPE_VIRTUAL, 0), + DRM_MODE_CONNECTOR_VIRTUAL); +} + +/** + * dm_test_to_connector_type_unknown - Test To connector type unknown + * @test: The KUnit test context + */ +static void dm_test_to_connector_type_unknown(struct kunit *test) +{ + KUNIT_EXPECT_EQ(test, to_drm_connector_type(SIGNAL_TYPE_NONE, 0), + DRM_MODE_CONNECTOR_Unknown); +} + +/* Tests for is_duplicate_mode() */ + +/** + * dm_test_is_duplicate_mode_empty_list - Test Is duplicate mode empty list + * @test: The KUnit test context + */ +static void dm_test_is_duplicate_mode_empty_list(struct kunit *test) +{ + struct amdgpu_dm_connector *aconnector; + struct drm_display_mode mode = {}; + + aconnector = kunit_kzalloc(test, sizeof(*aconnector), GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, aconnector); + + INIT_LIST_HEAD(&aconnector->base.probed_modes); + mode.hdisplay = 1920; + mode.vdisplay = 1080; + + KUNIT_EXPECT_FALSE(test, is_duplicate_mode(aconnector, &mode)); +} + +/** + * dm_test_is_duplicate_mode_match - Test Is duplicate mode match + * @test: The KUnit test context + */ +static void dm_test_is_duplicate_mode_match(struct kunit *test) +{ + struct amdgpu_dm_connector *aconnector; + struct drm_display_mode existing = {}; + struct drm_display_mode candidate = {}; + + aconnector = kunit_kzalloc(test, sizeof(*aconnector), GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, aconnector); + + INIT_LIST_HEAD(&aconnector->base.probed_modes); + existing.hdisplay = 1920; + existing.vdisplay = 1080; + existing.clock = 148500; + list_add_tail(&existing.head, &aconnector->base.probed_modes); + + candidate.hdisplay = 1920; + candidate.vdisplay = 1080; + candidate.clock = 148500; + + KUNIT_EXPECT_TRUE(test, is_duplicate_mode(aconnector, &candidate)); +} + +/** + * dm_test_is_duplicate_mode_no_match - Test Is duplicate mode no match + * @test: The KUnit test context + */ +static void dm_test_is_duplicate_mode_no_match(struct kunit *test) +{ + struct amdgpu_dm_connector *aconnector; + struct drm_display_mode existing = {}; + struct drm_display_mode candidate = {}; + + aconnector = kunit_kzalloc(test, sizeof(*aconnector), GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, aconnector); + + INIT_LIST_HEAD(&aconnector->base.probed_modes); + existing.hdisplay = 1920; + existing.vdisplay = 1080; + existing.clock = 148500; + list_add_tail(&existing.head, &aconnector->base.probed_modes); + + candidate.hdisplay = 2560; + candidate.vdisplay = 1440; + candidate.clock = 241500; + + KUNIT_EXPECT_FALSE(test, is_duplicate_mode(aconnector, &candidate)); +} + +/** + * dm_test_is_duplicate_mode_same_size_different_clock - Test Is duplicate mode + * same size different clock + * @test: The KUnit test context + */ +static void dm_test_is_duplicate_mode_same_size_different_clock(struct kunit *test) +{ + struct amdgpu_dm_connector *aconnector; + struct drm_display_mode existing = {}; + struct drm_display_mode candidate = {}; + + aconnector = kunit_kzalloc(test, sizeof(*aconnector), GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, aconnector); + + INIT_LIST_HEAD(&aconnector->base.probed_modes); + existing.hdisplay = 1920; + existing.vdisplay = 1080; + existing.clock = 148500; + list_add_tail(&existing.head, &aconnector->base.probed_modes); + + candidate.hdisplay = 1920; + candidate.vdisplay = 1080; + candidate.clock = 74250; + + KUNIT_EXPECT_FALSE(test, is_duplicate_mode(aconnector, &candidate)); +} + +/* Tests for amdgpu_dm_get_encoder_crtc_mask() */ + +/** + * dm_test_encoder_crtc_mask_1 - Test Encoder crtc mask 1 + * @test: The KUnit test context + */ +static void dm_test_encoder_crtc_mask_1(struct kunit *test) +{ + struct amdgpu_device *adev; + + adev = kunit_kzalloc(test, sizeof(*adev), GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, adev); + + adev->mode_info.num_crtc = 1; + KUNIT_EXPECT_EQ(test, amdgpu_dm_get_encoder_crtc_mask(adev), 0x1); +} + +/** + * dm_test_encoder_crtc_mask_2 - Test Encoder crtc mask 2 + * @test: The KUnit test context + */ +static void dm_test_encoder_crtc_mask_2(struct kunit *test) +{ + struct amdgpu_device *adev; + + adev = kunit_kzalloc(test, sizeof(*adev), GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, adev); + + adev->mode_info.num_crtc = 2; + KUNIT_EXPECT_EQ(test, amdgpu_dm_get_encoder_crtc_mask(adev), 0x3); +} + +/** + * dm_test_encoder_crtc_mask_3 - Test Encoder crtc mask 3 + * @test: The KUnit test context + */ +static void dm_test_encoder_crtc_mask_3(struct kunit *test) +{ + struct amdgpu_device *adev; + + adev = kunit_kzalloc(test, sizeof(*adev), GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, adev); + + adev->mode_info.num_crtc = 3; + KUNIT_EXPECT_EQ(test, amdgpu_dm_get_encoder_crtc_mask(adev), 0x7); +} + +/** + * dm_test_encoder_crtc_mask_4 - Test Encoder crtc mask 4 + * @test: The KUnit test context + */ +static void dm_test_encoder_crtc_mask_4(struct kunit *test) +{ + struct amdgpu_device *adev; + + adev = kunit_kzalloc(test, sizeof(*adev), GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, adev); + + adev->mode_info.num_crtc = 4; + KUNIT_EXPECT_EQ(test, amdgpu_dm_get_encoder_crtc_mask(adev), 0xf); +} + +/** + * dm_test_encoder_crtc_mask_5 - Test Encoder crtc mask 5 + * @test: The KUnit test context + */ +static void dm_test_encoder_crtc_mask_5(struct kunit *test) +{ + struct amdgpu_device *adev; + + adev = kunit_kzalloc(test, sizeof(*adev), GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, adev); + + adev->mode_info.num_crtc = 5; + KUNIT_EXPECT_EQ(test, amdgpu_dm_get_encoder_crtc_mask(adev), 0x1f); +} + +/** + * dm_test_encoder_crtc_mask_6 - Test Encoder crtc mask 6 + * @test: The KUnit test context + */ +static void dm_test_encoder_crtc_mask_6(struct kunit *test) +{ + struct amdgpu_device *adev; + + adev = kunit_kzalloc(test, sizeof(*adev), GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, adev); + + adev->mode_info.num_crtc = 6; + KUNIT_EXPECT_EQ(test, amdgpu_dm_get_encoder_crtc_mask(adev), 0x3f); +} + +/** + * dm_test_encoder_crtc_mask_default - Test Encoder crtc mask default + * @test: The KUnit test context + */ +static void dm_test_encoder_crtc_mask_default(struct kunit *test) +{ + struct amdgpu_device *adev; + + adev = kunit_kzalloc(test, sizeof(*adev), GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, adev); + + /* Values > 6 use the default case */ + adev->mode_info.num_crtc = 8; + KUNIT_EXPECT_EQ(test, amdgpu_dm_get_encoder_crtc_mask(adev), 0x3f); +} + +/* Tests for get_aspect_ratio() */ + +/** + * dm_test_aspect_ratio_no_data - Test Aspect ratio no data + * @test: The KUnit test context + */ +static void dm_test_aspect_ratio_no_data(struct kunit *test) +{ + struct drm_display_mode mode = {}; + + mode.picture_aspect_ratio = HDMI_PICTURE_ASPECT_NONE; + KUNIT_EXPECT_EQ(test, (int)get_aspect_ratio(&mode), (int)ASPECT_RATIO_NO_DATA); +} + +/** + * dm_test_aspect_ratio_4_3 - Test Aspect ratio 4 3 + * @test: The KUnit test context + */ +static void dm_test_aspect_ratio_4_3(struct kunit *test) +{ + struct drm_display_mode mode = {}; + + mode.picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3; + KUNIT_EXPECT_EQ(test, (int)get_aspect_ratio(&mode), (int)ASPECT_RATIO_4_3); +} + +/** + * dm_test_aspect_ratio_16_9 - Test Aspect ratio 16 9 + * @test: The KUnit test context + */ +static void dm_test_aspect_ratio_16_9(struct kunit *test) +{ + struct drm_display_mode mode = {}; + + mode.picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9; + KUNIT_EXPECT_EQ(test, (int)get_aspect_ratio(&mode), (int)ASPECT_RATIO_16_9); +} + +/** + * dm_test_aspect_ratio_64_27 - Test Aspect ratio 64 27 + * @test: The KUnit test context + */ +static void dm_test_aspect_ratio_64_27(struct kunit *test) +{ + struct drm_display_mode mode = {}; + + mode.picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27; + KUNIT_EXPECT_EQ(test, (int)get_aspect_ratio(&mode), (int)ASPECT_RATIO_64_27); +} + +/** + * dm_test_aspect_ratio_256_135 - Test Aspect ratio 256 135 + * @test: The KUnit test context + */ +static void dm_test_aspect_ratio_256_135(struct kunit *test) +{ + struct drm_display_mode mode = {}; + + mode.picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135; + KUNIT_EXPECT_EQ(test, (int)get_aspect_ratio(&mode), (int)ASPECT_RATIO_256_135); +} + +/* Tests for decide_crtc_timing_for_drm_display_mode() */ + +/** + * dm_test_decide_crtc_timing_scale_enabled - Test Decide crtc timing scale enabled + * @test: The KUnit test context + */ +static void dm_test_decide_crtc_timing_scale_enabled(struct kunit *test) +{ + struct drm_display_mode drm_mode = {}; + struct drm_display_mode native_mode = {}; + + native_mode.crtc_clock = 148500; + native_mode.crtc_hdisplay = 1920; + native_mode.crtc_vdisplay = 1080; + native_mode.crtc_htotal = 2200; + native_mode.crtc_vtotal = 1125; + native_mode.crtc_hsync_start = 2008; + native_mode.crtc_hsync_end = 2052; + native_mode.crtc_vsync_start = 1084; + native_mode.crtc_vsync_end = 1089; + + /* Different clock/htotal/vtotal, but scale_enabled forces copy */ + drm_mode.clock = 74250; + drm_mode.htotal = 1650; + drm_mode.vtotal = 750; + + decide_crtc_timing_for_drm_display_mode(&drm_mode, &native_mode, true); + + KUNIT_EXPECT_EQ(test, drm_mode.crtc_clock, 148500); + KUNIT_EXPECT_EQ(test, drm_mode.crtc_hdisplay, 1920); + KUNIT_EXPECT_EQ(test, drm_mode.crtc_vdisplay, 1080); + KUNIT_EXPECT_EQ(test, drm_mode.crtc_htotal, 2200); + KUNIT_EXPECT_EQ(test, drm_mode.crtc_vtotal, 1125); +} + +/** + * dm_test_decide_crtc_timing_matching_mode - Test Decide crtc timing matching mode + * @test: The KUnit test context + */ +static void dm_test_decide_crtc_timing_matching_mode(struct kunit *test) +{ + struct drm_display_mode drm_mode = {}; + struct drm_display_mode native_mode = {}; + + native_mode.clock = 148500; + native_mode.htotal = 2200; + native_mode.vtotal = 1125; + native_mode.crtc_clock = 148500; + native_mode.crtc_hdisplay = 1920; + native_mode.crtc_vdisplay = 1080; + native_mode.crtc_htotal = 2200; + native_mode.crtc_vtotal = 1125; + + /* Matching clock/htotal/vtotal triggers copy */ + drm_mode.clock = 148500; + drm_mode.htotal = 2200; + drm_mode.vtotal = 1125; + + decide_crtc_timing_for_drm_display_mode(&drm_mode, &native_mode, false); + + KUNIT_EXPECT_EQ(test, drm_mode.crtc_clock, 148500); + KUNIT_EXPECT_EQ(test, drm_mode.crtc_hdisplay, 1920); + KUNIT_EXPECT_EQ(test, drm_mode.crtc_vtotal, 1125); +} + +/** + * dm_test_decide_crtc_timing_no_copy - Test Decide crtc timing no copy + * @test: The KUnit test context + */ +static void dm_test_decide_crtc_timing_no_copy(struct kunit *test) +{ + struct drm_display_mode drm_mode = {}; + struct drm_display_mode native_mode = {}; + + native_mode.clock = 148500; + native_mode.htotal = 2200; + native_mode.vtotal = 1125; + native_mode.crtc_clock = 148500; + native_mode.crtc_hdisplay = 1920; + + /* Different timings, no scaling → no copy */ + drm_mode.clock = 74250; + drm_mode.htotal = 1650; + drm_mode.vtotal = 750; + + decide_crtc_timing_for_drm_display_mode(&drm_mode, &native_mode, false); + + KUNIT_EXPECT_EQ(test, drm_mode.crtc_clock, 0); + KUNIT_EXPECT_EQ(test, drm_mode.crtc_hdisplay, 0); +} + +/** + * dm_test_decide_crtc_timing_no_crtc_clock - Test Decide crtc timing no crtc clock + * @test: The KUnit test context + */ +static void dm_test_decide_crtc_timing_no_crtc_clock(struct kunit *test) +{ + struct drm_display_mode drm_mode = {}; + struct drm_display_mode native_mode = {}; + + /* Matching timings but native crtc_clock is 0 → no copy */ + native_mode.clock = 148500; + native_mode.htotal = 2200; + native_mode.vtotal = 1125; + native_mode.crtc_clock = 0; + native_mode.crtc_hdisplay = 1920; + + drm_mode.clock = 148500; + drm_mode.htotal = 2200; + drm_mode.vtotal = 1125; + + decide_crtc_timing_for_drm_display_mode(&drm_mode, &native_mode, false); + + KUNIT_EXPECT_EQ(test, drm_mode.crtc_clock, 0); + KUNIT_EXPECT_EQ(test, drm_mode.crtc_hdisplay, 0); +} + +/* Tests for amdgpu_dm_connector_funcs_reset() */ + +static const struct drm_connector_funcs dm_test_connector_funcs = { + .reset = amdgpu_dm_connector_funcs_reset, + .atomic_duplicate_state = amdgpu_dm_connector_atomic_duplicate_state, + .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, +}; + +/** + * dm_test_funcs_reset_sets_defaults - Test funcs_reset sets defaults + * @test: The KUnit test context + */ +static void dm_test_funcs_reset_sets_defaults(struct kunit *test) +{ + struct device *dev; + struct drm_device *drm; + struct drm_connector *connector; + struct dm_connector_state *dm_state; + + dev = drm_kunit_helper_alloc_device(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev); + + drm = __drm_kunit_helper_alloc_drm_device(test, dev, + sizeof(*drm), 0, + DRIVER_MODESET); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, drm); + + connector = kunit_kzalloc(test, sizeof(*connector), GFP_KERNEL); + KUNIT_ASSERT_NOT_NULL(test, connector); + + drmm_connector_init(drm, connector, &dm_test_connector_funcs, + DRM_MODE_CONNECTOR_DisplayPort, NULL); + + amdgpu_dm_connector_funcs_reset(connector); + + KUNIT_ASSERT_NOT_NULL(test, connector->state); + dm_state = to_dm_connector_state(connector->state); + KUNIT_EXPECT_EQ(test, (int)dm_state->scaling, (int)RMX_OFF); + KUNIT_EXPECT_FALSE(test, dm_state->underscan_enable); + KUNIT_EXPECT_EQ(test, (int)dm_state->underscan_hborder, 0); + KUNIT_EXPECT_EQ(test, (int)dm_state->underscan_vborder, 0); + KUNIT_EXPECT_EQ(test, (int)dm_state->base.max_requested_bpc, 8); + KUNIT_EXPECT_EQ(test, dm_state->vcpi_slots, 0); + KUNIT_EXPECT_EQ(test, (int)dm_state->pbn, 0); +} + +/** + * dm_test_funcs_reset_edp_abm_level - Test funcs_reset eDP sets ABM + * @test: The KUnit test context + */ +static void dm_test_funcs_reset_edp_abm_level(struct kunit *test) +{ + struct device *dev; + struct drm_device *drm; + struct drm_connector *connector; + struct dm_connector_state *dm_state; + int saved_abm_level = amdgpu_dm_get_abm_level_param(); + + dev = drm_kunit_helper_alloc_device(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev); + + drm = __drm_kunit_helper_alloc_drm_device(test, dev, + sizeof(*drm), 0, + DRIVER_MODESET); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, drm); + + connector = kunit_kzalloc(test, sizeof(*connector), GFP_KERNEL); + KUNIT_ASSERT_NOT_NULL(test, connector); + + drmm_connector_init(drm, connector, &dm_test_connector_funcs, + DRM_MODE_CONNECTOR_eDP, NULL); + + /* Test with abm_level > 0 */ + amdgpu_dm_set_abm_level_param(3); + amdgpu_dm_connector_funcs_reset(connector); + + KUNIT_ASSERT_NOT_NULL(test, connector->state); + dm_state = to_dm_connector_state(connector->state); + KUNIT_EXPECT_EQ(test, (int)dm_state->abm_level, 3); + + amdgpu_dm_set_abm_level_param(saved_abm_level); +} + +/** + * dm_test_funcs_reset_edp_abm_disabled - Test funcs_reset eDP ABM + * disabled + * @test: The KUnit test context + */ +static void dm_test_funcs_reset_edp_abm_disabled(struct kunit *test) +{ + struct device *dev; + struct drm_device *drm; + struct drm_connector *connector; + struct dm_connector_state *dm_state; + int saved_abm_level = amdgpu_dm_get_abm_level_param(); + + dev = drm_kunit_helper_alloc_device(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev); + + drm = __drm_kunit_helper_alloc_drm_device(test, dev, + sizeof(*drm), 0, + DRIVER_MODESET); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, drm); + + connector = kunit_kzalloc(test, sizeof(*connector), GFP_KERNEL); + KUNIT_ASSERT_NOT_NULL(test, connector); + + drmm_connector_init(drm, connector, &dm_test_connector_funcs, + DRM_MODE_CONNECTOR_eDP, NULL); + + /* Test with abm_level <= 0 → immediate disable */ + amdgpu_dm_set_abm_level_param(-1); + amdgpu_dm_connector_funcs_reset(connector); + + KUNIT_ASSERT_NOT_NULL(test, connector->state); + dm_state = to_dm_connector_state(connector->state); + KUNIT_EXPECT_EQ(test, (int)dm_state->abm_level, + (int)ABM_LEVEL_IMMEDIATE_DISABLE); + + amdgpu_dm_set_abm_level_param(saved_abm_level); +} + +/* Tests for amdgpu_dm_connector_atomic_duplicate_state() */ + +/** + * dm_test_atomic_dup_state_copies_fields - Test atomic_duplicate copies + * fields + * @test: The KUnit test context + */ +static void dm_test_atomic_dup_state_copies_fields(struct kunit *test) +{ + struct device *dev; + struct drm_device *drm; + struct drm_connector *connector; + struct dm_connector_state *dm_state; + struct dm_connector_state *new_dm_state; + struct drm_connector_state *new_state; + + dev = drm_kunit_helper_alloc_device(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev); + + drm = __drm_kunit_helper_alloc_drm_device(test, dev, + sizeof(*drm), 0, + DRIVER_MODESET); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, drm); + + connector = kunit_kzalloc(test, sizeof(*connector), GFP_KERNEL); + KUNIT_ASSERT_NOT_NULL(test, connector); + + drmm_connector_init(drm, connector, &dm_test_connector_funcs, + DRM_MODE_CONNECTOR_HDMIA, NULL); + + amdgpu_dm_connector_funcs_reset(connector); + KUNIT_ASSERT_NOT_NULL(test, connector->state); + + /* Modify original state fields */ + dm_state = to_dm_connector_state(connector->state); + dm_state->scaling = RMX_CENTER; + dm_state->underscan_enable = true; + dm_state->underscan_hborder = 10; + dm_state->underscan_vborder = 20; + dm_state->freesync_capable = true; + dm_state->abm_level = 2; + dm_state->vcpi_slots = 4; + dm_state->pbn = 1234; + + /* Duplicate */ + new_state = amdgpu_dm_connector_atomic_duplicate_state(connector); + KUNIT_ASSERT_NOT_NULL(test, new_state); + new_dm_state = to_dm_connector_state(new_state); + + /* Verify all fields copied */ + KUNIT_EXPECT_EQ(test, (int)new_dm_state->scaling, (int)RMX_CENTER); + KUNIT_EXPECT_TRUE(test, new_dm_state->underscan_enable); + KUNIT_EXPECT_EQ(test, (int)new_dm_state->underscan_hborder, 10); + KUNIT_EXPECT_EQ(test, (int)new_dm_state->underscan_vborder, 20); + KUNIT_EXPECT_TRUE(test, new_dm_state->freesync_capable); + KUNIT_EXPECT_EQ(test, (int)new_dm_state->abm_level, 2); + KUNIT_EXPECT_EQ(test, new_dm_state->vcpi_slots, 4); + KUNIT_EXPECT_EQ(test, (int)new_dm_state->pbn, 1234); + + kfree(new_dm_state); +} + +/* Tests for amdgpu_dm_fill_hdr_info_packet() */ + +/** + * dm_test_fill_hdr_null_metadata - Test fill_hdr returns 0 with no + * metadata + * @test: The KUnit test context + */ +static void dm_test_fill_hdr_null_metadata(struct kunit *test) +{ + struct drm_connector_state state = {}; + struct dc_info_packet out = {}; + + /* No hdr_output_metadata → early return 0, out stays zeroed */ + state.hdr_output_metadata = NULL; + KUNIT_EXPECT_EQ(test, amdgpu_dm_fill_hdr_info_packet(&state, &out), 0); + KUNIT_EXPECT_FALSE(test, out.valid); +} + +/** + * dm_test_fill_hdr_zeroes_output - Test fill_hdr zeroes output with no + * metadata + * @test: The KUnit test context + */ +static void dm_test_fill_hdr_zeroes_output(struct kunit *test) +{ + struct drm_connector_state state = {}; + struct dc_info_packet out; + + /* Pre-fill out with nonzero to verify memset(0) */ + memset(&out, 0xAA, sizeof(out)); + + state.hdr_output_metadata = NULL; + KUNIT_EXPECT_EQ(test, amdgpu_dm_fill_hdr_info_packet(&state, &out), 0); + KUNIT_EXPECT_FALSE(test, out.valid); + KUNIT_EXPECT_EQ(test, (int)out.hb0, 0); + KUNIT_EXPECT_EQ(test, (int)out.hb1, 0); + KUNIT_EXPECT_EQ(test, (int)out.hb2, 0); + KUNIT_EXPECT_EQ(test, (int)out.hb3, 0); +} + +/* Tests for amdgpu_dm_connector_atomic_set_property() */ + +/* + * Build a connector wired to a kunit-allocated amdgpu_device so that + * drm_to_adev() resolves correctly, together with old/new dm states and + * the set of properties used by the get/set property handlers. + */ +struct dm_test_prop_ctx { + struct amdgpu_device *adev; + struct drm_connector *connector; + struct dm_connector_state *old_state; + struct dm_connector_state *new_state; + struct drm_property *scaling_prop; + struct drm_property *hborder_prop; + struct drm_property *vborder_prop; + struct drm_property *underscan_prop; + struct drm_property *abm_prop; +}; + +static struct dm_test_prop_ctx *dm_test_prop_ctx_alloc(struct kunit *test) +{ + struct dm_test_prop_ctx *ctx; + + ctx = kunit_kzalloc(test, sizeof(*ctx), GFP_KERNEL); + KUNIT_ASSERT_NOT_NULL(test, ctx); + + ctx->adev = kunit_kzalloc(test, sizeof(*ctx->adev), GFP_KERNEL); + KUNIT_ASSERT_NOT_NULL(test, ctx->adev); + ctx->connector = kunit_kzalloc(test, sizeof(*ctx->connector), GFP_KERNEL); + KUNIT_ASSERT_NOT_NULL(test, ctx->connector); + ctx->old_state = kunit_kzalloc(test, sizeof(*ctx->old_state), GFP_KERNEL); + KUNIT_ASSERT_NOT_NULL(test, ctx->old_state); + ctx->new_state = kunit_kzalloc(test, sizeof(*ctx->new_state), GFP_KERNEL); + KUNIT_ASSERT_NOT_NULL(test, ctx->new_state); + ctx->scaling_prop = kunit_kzalloc(test, sizeof(*ctx->scaling_prop), GFP_KERNEL); + KUNIT_ASSERT_NOT_NULL(test, ctx->scaling_prop); + ctx->hborder_prop = kunit_kzalloc(test, sizeof(*ctx->hborder_prop), GFP_KERNEL); + KUNIT_ASSERT_NOT_NULL(test, ctx->hborder_prop); + ctx->vborder_prop = kunit_kzalloc(test, sizeof(*ctx->vborder_prop), GFP_KERNEL); + KUNIT_ASSERT_NOT_NULL(test, ctx->vborder_prop); + ctx->underscan_prop = kunit_kzalloc(test, sizeof(*ctx->underscan_prop), GFP_KERNEL); + KUNIT_ASSERT_NOT_NULL(test, ctx->underscan_prop); + ctx->abm_prop = kunit_kzalloc(test, sizeof(*ctx->abm_prop), GFP_KERNEL); + KUNIT_ASSERT_NOT_NULL(test, ctx->abm_prop); + + ctx->connector->dev = &ctx->adev->ddev; + ctx->connector->state = &ctx->old_state->base; + + ctx->adev->ddev.mode_config.scaling_mode_property = ctx->scaling_prop; + ctx->adev->mode_info.underscan_hborder_property = ctx->hborder_prop; + ctx->adev->mode_info.underscan_vborder_property = ctx->vborder_prop; + ctx->adev->mode_info.underscan_property = ctx->underscan_prop; + ctx->adev->mode_info.abm_level_property = ctx->abm_prop; + + return ctx; +} + +/** + * dm_test_set_property_scaling_center - Test set scaling property to center + * @test: The KUnit test context + */ +static void dm_test_set_property_scaling_center(struct kunit *test) +{ + struct dm_test_prop_ctx *ctx = dm_test_prop_ctx_alloc(test); + + KUNIT_EXPECT_EQ(test, amdgpu_dm_connector_atomic_set_property( + ctx->connector, &ctx->new_state->base, + ctx->scaling_prop, DRM_MODE_SCALE_CENTER), 0); + KUNIT_EXPECT_EQ(test, (int)ctx->new_state->scaling, (int)RMX_CENTER); +} + +/** + * dm_test_set_property_scaling_aspect - Test set scaling property to aspect + * @test: The KUnit test context + */ +static void dm_test_set_property_scaling_aspect(struct kunit *test) +{ + struct dm_test_prop_ctx *ctx = dm_test_prop_ctx_alloc(test); + + KUNIT_EXPECT_EQ(test, amdgpu_dm_connector_atomic_set_property( + ctx->connector, &ctx->new_state->base, + ctx->scaling_prop, DRM_MODE_SCALE_ASPECT), 0); + KUNIT_EXPECT_EQ(test, (int)ctx->new_state->scaling, (int)RMX_ASPECT); +} + +/** + * dm_test_set_property_scaling_fullscreen - Test set scaling property to full + * @test: The KUnit test context + */ +static void dm_test_set_property_scaling_fullscreen(struct kunit *test) +{ + struct dm_test_prop_ctx *ctx = dm_test_prop_ctx_alloc(test); + + KUNIT_EXPECT_EQ(test, amdgpu_dm_connector_atomic_set_property( + ctx->connector, &ctx->new_state->base, + ctx->scaling_prop, DRM_MODE_SCALE_FULLSCREEN), 0); + KUNIT_EXPECT_EQ(test, (int)ctx->new_state->scaling, (int)RMX_FULL); +} + +/** + * dm_test_set_property_scaling_none - Test set scaling property to none + * @test: The KUnit test context + */ +static void dm_test_set_property_scaling_none(struct kunit *test) +{ + struct dm_test_prop_ctx *ctx = dm_test_prop_ctx_alloc(test); + + /* old scaling is RMX_CENTER so RMX_OFF is a real change */ + ctx->old_state->scaling = RMX_CENTER; + KUNIT_EXPECT_EQ(test, amdgpu_dm_connector_atomic_set_property( + ctx->connector, &ctx->new_state->base, + ctx->scaling_prop, DRM_MODE_SCALE_NONE), 0); + KUNIT_EXPECT_EQ(test, (int)ctx->new_state->scaling, (int)RMX_OFF); +} + +/** + * dm_test_set_property_scaling_unchanged - Test set scaling property unchanged + * @test: The KUnit test context + */ +static void dm_test_set_property_scaling_unchanged(struct kunit *test) +{ + struct dm_test_prop_ctx *ctx = dm_test_prop_ctx_alloc(test); + + /* old already RMX_OFF, requesting NONE/OFF returns 0 without write */ + ctx->old_state->scaling = RMX_OFF; + ctx->new_state->scaling = RMX_CENTER; + KUNIT_EXPECT_EQ(test, amdgpu_dm_connector_atomic_set_property( + ctx->connector, &ctx->new_state->base, + ctx->scaling_prop, DRM_MODE_SCALE_NONE), 0); + /* new_state untouched because of early return */ + KUNIT_EXPECT_EQ(test, (int)ctx->new_state->scaling, (int)RMX_CENTER); +} + +/** + * dm_test_set_property_underscan_hborder - Test set underscan hborder + * @test: The KUnit test context + */ +static void dm_test_set_property_underscan_hborder(struct kunit *test) +{ + struct dm_test_prop_ctx *ctx = dm_test_prop_ctx_alloc(test); + + KUNIT_EXPECT_EQ(test, amdgpu_dm_connector_atomic_set_property( + ctx->connector, &ctx->new_state->base, + ctx->hborder_prop, 42), 0); + KUNIT_EXPECT_EQ(test, (int)ctx->new_state->underscan_hborder, 42); +} + +/** + * dm_test_set_property_underscan_vborder - Test set underscan vborder + * @test: The KUnit test context + */ +static void dm_test_set_property_underscan_vborder(struct kunit *test) +{ + struct dm_test_prop_ctx *ctx = dm_test_prop_ctx_alloc(test); + + KUNIT_EXPECT_EQ(test, amdgpu_dm_connector_atomic_set_property( + ctx->connector, &ctx->new_state->base, + ctx->vborder_prop, 24), 0); + KUNIT_EXPECT_EQ(test, (int)ctx->new_state->underscan_vborder, 24); +} + +/** + * dm_test_set_property_underscan_enable - Test set underscan enable + * @test: The KUnit test context + */ +static void dm_test_set_property_underscan_enable(struct kunit *test) +{ + struct dm_test_prop_ctx *ctx = dm_test_prop_ctx_alloc(test); + + KUNIT_EXPECT_EQ(test, amdgpu_dm_connector_atomic_set_property( + ctx->connector, &ctx->new_state->base, + ctx->underscan_prop, 1), 0); + KUNIT_EXPECT_TRUE(test, ctx->new_state->underscan_enable); +} + +/** + * dm_test_set_property_abm_sysfs_control - Test set abm sysfs control + * @test: The KUnit test context + */ +static void dm_test_set_property_abm_sysfs_control(struct kunit *test) +{ + struct dm_test_prop_ctx *ctx = dm_test_prop_ctx_alloc(test); + + ctx->new_state->abm_sysfs_forbidden = true; + KUNIT_EXPECT_EQ(test, amdgpu_dm_connector_atomic_set_property( + ctx->connector, &ctx->new_state->base, + ctx->abm_prop, ABM_SYSFS_CONTROL), 0); + KUNIT_EXPECT_FALSE(test, ctx->new_state->abm_sysfs_forbidden); +} + +/** + * dm_test_set_property_abm_level_off - Test set abm level off + * @test: The KUnit test context + */ +static void dm_test_set_property_abm_level_off(struct kunit *test) +{ + struct dm_test_prop_ctx *ctx = dm_test_prop_ctx_alloc(test); + + KUNIT_EXPECT_EQ(test, amdgpu_dm_connector_atomic_set_property( + ctx->connector, &ctx->new_state->base, + ctx->abm_prop, ABM_LEVEL_OFF), 0); + KUNIT_EXPECT_TRUE(test, ctx->new_state->abm_sysfs_forbidden); + KUNIT_EXPECT_EQ(test, (int)ctx->new_state->abm_level, + (int)ABM_LEVEL_IMMEDIATE_DISABLE); +} + +/** + * dm_test_set_property_abm_level_value - Test set abm level to a value + * @test: The KUnit test context + */ +static void dm_test_set_property_abm_level_value(struct kunit *test) +{ + struct dm_test_prop_ctx *ctx = dm_test_prop_ctx_alloc(test); + + KUNIT_EXPECT_EQ(test, amdgpu_dm_connector_atomic_set_property( + ctx->connector, &ctx->new_state->base, + ctx->abm_prop, 3), 0); + KUNIT_EXPECT_TRUE(test, ctx->new_state->abm_sysfs_forbidden); + KUNIT_EXPECT_EQ(test, (int)ctx->new_state->abm_level, 3); +} + +/** + * dm_test_set_property_unknown - Test set unknown property returns -EINVAL + * @test: The KUnit test context + */ +static void dm_test_set_property_unknown(struct kunit *test) +{ + struct dm_test_prop_ctx *ctx = dm_test_prop_ctx_alloc(test); + struct drm_property *other; + + other = kunit_kzalloc(test, sizeof(*other), GFP_KERNEL); + KUNIT_ASSERT_NOT_NULL(test, other); + + KUNIT_EXPECT_EQ(test, amdgpu_dm_connector_atomic_set_property( + ctx->connector, &ctx->new_state->base, + other, 0), -EINVAL); +} + +/* Tests for amdgpu_dm_connector_atomic_get_property() */ + +/** + * dm_test_get_property_scaling_center - Test get scaling property center + * @test: The KUnit test context + */ +static void dm_test_get_property_scaling_center(struct kunit *test) +{ + struct dm_test_prop_ctx *ctx = dm_test_prop_ctx_alloc(test); + uint64_t val = 0; + + ctx->new_state->scaling = RMX_CENTER; + KUNIT_EXPECT_EQ(test, amdgpu_dm_connector_atomic_get_property( + ctx->connector, &ctx->new_state->base, + ctx->scaling_prop, &val), 0); + KUNIT_EXPECT_EQ(test, (int)val, (int)DRM_MODE_SCALE_CENTER); +} + +/** + * dm_test_get_property_scaling_aspect - Test get scaling property aspect + * @test: The KUnit test context + */ +static void dm_test_get_property_scaling_aspect(struct kunit *test) +{ + struct dm_test_prop_ctx *ctx = dm_test_prop_ctx_alloc(test); + uint64_t val = 0; + + ctx->new_state->scaling = RMX_ASPECT; + KUNIT_EXPECT_EQ(test, amdgpu_dm_connector_atomic_get_property( + ctx->connector, &ctx->new_state->base, + ctx->scaling_prop, &val), 0); + KUNIT_EXPECT_EQ(test, (int)val, (int)DRM_MODE_SCALE_ASPECT); +} + +/** + * dm_test_get_property_scaling_full - Test get scaling property fullscreen + * @test: The KUnit test context + */ +static void dm_test_get_property_scaling_full(struct kunit *test) +{ + struct dm_test_prop_ctx *ctx = dm_test_prop_ctx_alloc(test); + uint64_t val = 0; + + ctx->new_state->scaling = RMX_FULL; + KUNIT_EXPECT_EQ(test, amdgpu_dm_connector_atomic_get_property( + ctx->connector, &ctx->new_state->base, + ctx->scaling_prop, &val), 0); + KUNIT_EXPECT_EQ(test, (int)val, (int)DRM_MODE_SCALE_FULLSCREEN); +} + +/** + * dm_test_get_property_scaling_off - Test get scaling property off/none + * @test: The KUnit test context + */ +static void dm_test_get_property_scaling_off(struct kunit *test) +{ + struct dm_test_prop_ctx *ctx = dm_test_prop_ctx_alloc(test); + uint64_t val = 0; + + ctx->new_state->scaling = RMX_OFF; + KUNIT_EXPECT_EQ(test, amdgpu_dm_connector_atomic_get_property( + ctx->connector, &ctx->new_state->base, + ctx->scaling_prop, &val), 0); + KUNIT_EXPECT_EQ(test, (int)val, (int)DRM_MODE_SCALE_NONE); +} + +/** + * dm_test_get_property_underscan_borders - Test get underscan borders/enable + * @test: The KUnit test context + */ +static void dm_test_get_property_underscan_borders(struct kunit *test) +{ + struct dm_test_prop_ctx *ctx = dm_test_prop_ctx_alloc(test); + uint64_t val = 0; + + ctx->new_state->underscan_hborder = 12; + ctx->new_state->underscan_vborder = 34; + ctx->new_state->underscan_enable = true; + + KUNIT_EXPECT_EQ(test, amdgpu_dm_connector_atomic_get_property( + ctx->connector, &ctx->new_state->base, + ctx->hborder_prop, &val), 0); + KUNIT_EXPECT_EQ(test, (int)val, 12); + + KUNIT_EXPECT_EQ(test, amdgpu_dm_connector_atomic_get_property( + ctx->connector, &ctx->new_state->base, + ctx->vborder_prop, &val), 0); + KUNIT_EXPECT_EQ(test, (int)val, 34); + + KUNIT_EXPECT_EQ(test, amdgpu_dm_connector_atomic_get_property( + ctx->connector, &ctx->new_state->base, + ctx->underscan_prop, &val), 0); + KUNIT_EXPECT_EQ(test, (int)val, 1); +} + +/** + * dm_test_get_property_abm_sysfs_allowed - Test get abm returns sysfs control + * @test: The KUnit test context + */ +static void dm_test_get_property_abm_sysfs_allowed(struct kunit *test) +{ + struct dm_test_prop_ctx *ctx = dm_test_prop_ctx_alloc(test); + uint64_t val = 0; + + ctx->new_state->abm_sysfs_forbidden = false; + KUNIT_EXPECT_EQ(test, amdgpu_dm_connector_atomic_get_property( + ctx->connector, &ctx->new_state->base, + ctx->abm_prop, &val), 0); + KUNIT_EXPECT_EQ(test, (int)val, (int)ABM_SYSFS_CONTROL); +} + +/** + * dm_test_get_property_abm_level - Test get abm returns level when forbidden + * @test: The KUnit test context + */ +static void dm_test_get_property_abm_level(struct kunit *test) +{ + struct dm_test_prop_ctx *ctx = dm_test_prop_ctx_alloc(test); + uint64_t val = 0; + + ctx->new_state->abm_sysfs_forbidden = true; + ctx->new_state->abm_level = 2; + KUNIT_EXPECT_EQ(test, amdgpu_dm_connector_atomic_get_property( + ctx->connector, &ctx->new_state->base, + ctx->abm_prop, &val), 0); + KUNIT_EXPECT_EQ(test, (int)val, 2); +} + +/** + * dm_test_get_property_abm_disabled_zero - Test get abm returns 0 when disabled + * @test: The KUnit test context + */ +static void dm_test_get_property_abm_disabled_zero(struct kunit *test) +{ + struct dm_test_prop_ctx *ctx = dm_test_prop_ctx_alloc(test); + uint64_t val = 0xdead; + + ctx->new_state->abm_sysfs_forbidden = true; + ctx->new_state->abm_level = ABM_LEVEL_IMMEDIATE_DISABLE; + KUNIT_EXPECT_EQ(test, amdgpu_dm_connector_atomic_get_property( + ctx->connector, &ctx->new_state->base, + ctx->abm_prop, &val), 0); + KUNIT_EXPECT_EQ(test, (int)val, 0); +} + +/** + * dm_test_get_property_unknown - Test get unknown property returns -EINVAL + * @test: The KUnit test context + */ +static void dm_test_get_property_unknown(struct kunit *test) +{ + struct dm_test_prop_ctx *ctx = dm_test_prop_ctx_alloc(test); + struct drm_property *other; + uint64_t val = 0; + + other = kunit_kzalloc(test, sizeof(*other), GFP_KERNEL); + KUNIT_ASSERT_NOT_NULL(test, other); + + KUNIT_EXPECT_EQ(test, amdgpu_dm_connector_atomic_get_property( + ctx->connector, &ctx->new_state->base, + other, &val), -EINVAL); +} + +/* Tests for amdgpu_dm_get_highest_refresh_rate_mode() */ + +/** + * dm_test_highest_refresh_writeback_null - Test writeback connector returns NULL + * @test: The KUnit test context + */ +static void dm_test_highest_refresh_writeback_null(struct kunit *test) +{ + struct amdgpu_dm_connector *aconnector; + + aconnector = kunit_kzalloc(test, sizeof(*aconnector), GFP_KERNEL); + KUNIT_ASSERT_NOT_NULL(test, aconnector); + + aconnector->base.connector_type = DRM_MODE_CONNECTOR_WRITEBACK; + KUNIT_EXPECT_NULL(test, amdgpu_dm_get_highest_refresh_rate_mode(aconnector, false)); +} + +/** + * dm_test_highest_refresh_cached_base - Test cached freesync_vid_base is returned + * @test: The KUnit test context + */ +static void dm_test_highest_refresh_cached_base(struct kunit *test) +{ + struct amdgpu_dm_connector *aconnector; + + aconnector = kunit_kzalloc(test, sizeof(*aconnector), GFP_KERNEL); + KUNIT_ASSERT_NOT_NULL(test, aconnector); + + aconnector->base.connector_type = DRM_MODE_CONNECTOR_HDMIA; + aconnector->freesync_vid_base.clock = 148500; + + KUNIT_EXPECT_PTR_EQ(test, amdgpu_dm_get_highest_refresh_rate_mode(aconnector, false), + &aconnector->freesync_vid_base); +} + +/** + * dm_test_highest_refresh_preferred_mode - Test preferred mode is selected + * @test: The KUnit test context + */ +static void dm_test_highest_refresh_preferred_mode(struct kunit *test) +{ + struct amdgpu_dm_connector *aconnector; + struct drm_display_mode *mode; + + aconnector = kunit_kzalloc(test, sizeof(*aconnector), GFP_KERNEL); + KUNIT_ASSERT_NOT_NULL(test, aconnector); + mode = kunit_kzalloc(test, sizeof(*mode), GFP_KERNEL); + KUNIT_ASSERT_NOT_NULL(test, mode); + + aconnector->base.connector_type = DRM_MODE_CONNECTOR_HDMIA; + INIT_LIST_HEAD(&aconnector->base.modes); + + mode->type = DRM_MODE_TYPE_PREFERRED; + mode->clock = 148500; + mode->hdisplay = 1920; + mode->vdisplay = 1080; + mode->htotal = 2200; + mode->vtotal = 1125; + list_add_tail(&mode->head, &aconnector->base.modes); + + KUNIT_EXPECT_PTR_EQ(test, amdgpu_dm_get_highest_refresh_rate_mode(aconnector, false), + mode); +} + +/* Tests for amdgpu_dm_is_freesync_video_mode() */ + +/** + * dm_test_is_freesync_video_mode_null_mode - Test NULL mode returns false + * @test: The KUnit test context + */ +static void dm_test_is_freesync_video_mode_null_mode(struct kunit *test) +{ + struct amdgpu_dm_connector *aconnector; + + aconnector = kunit_kzalloc(test, sizeof(*aconnector), GFP_KERNEL); + KUNIT_ASSERT_NOT_NULL(test, aconnector); + + aconnector->base.connector_type = DRM_MODE_CONNECTOR_HDMIA; + aconnector->freesync_vid_base.clock = 148500; + + KUNIT_EXPECT_FALSE(test, amdgpu_dm_is_freesync_video_mode(NULL, aconnector)); +} + +/** + * dm_test_is_freesync_video_mode_match - Test matching mode returns true + * @test: The KUnit test context + */ +static void dm_test_is_freesync_video_mode_match(struct kunit *test) +{ + struct amdgpu_dm_connector *aconnector; + struct drm_display_mode candidate = {}; + + aconnector = kunit_kzalloc(test, sizeof(*aconnector), GFP_KERNEL); + KUNIT_ASSERT_NOT_NULL(test, aconnector); + + /* Cached high mode acts as reference */ + aconnector->base.connector_type = DRM_MODE_CONNECTOR_HDMIA; + aconnector->freesync_vid_base.clock = 148500; + aconnector->freesync_vid_base.hdisplay = 1920; + aconnector->freesync_vid_base.vdisplay = 1080; + aconnector->freesync_vid_base.hsync_start = 2008; + aconnector->freesync_vid_base.hsync_end = 2052; + aconnector->freesync_vid_base.htotal = 2200; + aconnector->freesync_vid_base.vsync_start = 1084; + aconnector->freesync_vid_base.vsync_end = 1089; + aconnector->freesync_vid_base.vtotal = 1125; + + candidate.clock = 148500; + candidate.hdisplay = 1920; + candidate.vdisplay = 1080; + candidate.hsync_start = 2008; + candidate.hsync_end = 2052; + candidate.htotal = 2200; + candidate.vsync_start = 1084; + candidate.vsync_end = 1089; + candidate.vtotal = 1125; + + KUNIT_EXPECT_TRUE(test, amdgpu_dm_is_freesync_video_mode(&candidate, aconnector)); +} + +/** + * dm_test_is_freesync_video_mode_no_match - Test mismatched mode returns false + * @test: The KUnit test context + */ +static void dm_test_is_freesync_video_mode_no_match(struct kunit *test) +{ + struct amdgpu_dm_connector *aconnector; + struct drm_display_mode candidate = {}; + + aconnector = kunit_kzalloc(test, sizeof(*aconnector), GFP_KERNEL); + KUNIT_ASSERT_NOT_NULL(test, aconnector); + + aconnector->base.connector_type = DRM_MODE_CONNECTOR_HDMIA; + aconnector->freesync_vid_base.clock = 148500; + aconnector->freesync_vid_base.hdisplay = 1920; + aconnector->freesync_vid_base.vdisplay = 1080; + aconnector->freesync_vid_base.htotal = 2200; + aconnector->freesync_vid_base.vtotal = 1125; + + /* Different resolution → not a freesync video mode */ + candidate.clock = 148500; + candidate.hdisplay = 1280; + candidate.vdisplay = 720; + candidate.htotal = 1650; + candidate.vtotal = 750; + + KUNIT_EXPECT_FALSE(test, amdgpu_dm_is_freesync_video_mode(&candidate, aconnector)); +} + +static struct kunit_case amdgpu_dm_connector_tests[] = { + /* get_subconnector_type */ + KUNIT_CASE(dm_test_subconnector_type_none), + KUNIT_CASE(dm_test_subconnector_type_vga), + KUNIT_CASE(dm_test_subconnector_type_dvi_converter), + KUNIT_CASE(dm_test_subconnector_type_dvi_dongle), + KUNIT_CASE(dm_test_subconnector_type_hdmi_converter), + KUNIT_CASE(dm_test_subconnector_type_hdmi_dongle), + KUNIT_CASE(dm_test_subconnector_type_mismatched), + KUNIT_CASE(dm_test_subconnector_type_default_unknown), + /* get_output_content_type */ + KUNIT_CASE(dm_test_content_type_no_data), + KUNIT_CASE(dm_test_content_type_graphics), + KUNIT_CASE(dm_test_content_type_photo), + KUNIT_CASE(dm_test_content_type_cinema), + KUNIT_CASE(dm_test_content_type_game), + KUNIT_CASE(dm_test_content_type_unknown_defaults_no_data), + /* adjust_colour_depth_from_display_info */ + KUNIT_CASE(dm_test_adjust_colour_depth_fits_at_888), + KUNIT_CASE(dm_test_adjust_colour_depth_reduces_to_888), + KUNIT_CASE(dm_test_adjust_colour_depth_10bpc_passes), + KUNIT_CASE(dm_test_adjust_colour_depth_420_halves_clk), + KUNIT_CASE(dm_test_adjust_colour_depth_reduces_12bpc_to_10bpc), + KUNIT_CASE(dm_test_adjust_colour_depth_16bpc_no_fallback), + KUNIT_CASE(dm_test_adjust_colour_depth_none_fits), + KUNIT_CASE(dm_test_adjust_colour_depth_invalid_depth), + /* amdgpu_dm_get_output_color_space */ + KUNIT_CASE(dm_test_output_color_space_default_rgb_full), + KUNIT_CASE(dm_test_output_color_space_default_rgb_limited), + KUNIT_CASE(dm_test_output_color_space_default_ycbcr709), + KUNIT_CASE(dm_test_output_color_space_default_ycbcr601_limited), + KUNIT_CASE(dm_test_output_color_space_bt601_y_only), + KUNIT_CASE(dm_test_output_color_space_bt601), + KUNIT_CASE(dm_test_output_color_space_bt709), + KUNIT_CASE(dm_test_output_color_space_bt709_y_only), + KUNIT_CASE(dm_test_output_color_space_oprgb), + KUNIT_CASE(dm_test_output_color_space_bt2020_rgb), + KUNIT_CASE(dm_test_output_color_space_bt2020_ycc), + /* Tests for amdgpu_dm_convert_dc_color_depth_into_bpc */ + KUNIT_CASE(dm_test_convert_color_depth_bpc_mappings), + KUNIT_CASE(dm_test_convert_color_depth_bpc_unknown), + /* amdgpu_dm_convert_color_depth_from_display_info */ + KUNIT_CASE(dm_test_color_depth_from_info_bpc8), + KUNIT_CASE(dm_test_color_depth_from_info_bpc10), + KUNIT_CASE(dm_test_color_depth_from_info_zero_bpc_defaults_888), + KUNIT_CASE(dm_test_color_depth_from_info_requested_bpc_caps), + KUNIT_CASE(dm_test_color_depth_from_info_y420_default), + KUNIT_CASE(dm_test_color_depth_from_info_y420_10bpc), + KUNIT_CASE(dm_test_color_depth_from_info_y420_12bpc), + KUNIT_CASE(dm_test_color_depth_from_info_y420_16bpc), + KUNIT_CASE(dm_test_color_depth_from_info_requested_odd_bpc), + KUNIT_CASE(dm_test_color_depth_from_info_unsupported_bpc), + /* to_drm_connector_type */ + KUNIT_CASE(dm_test_to_connector_type_hdmi), + KUNIT_CASE(dm_test_to_connector_type_edp), + KUNIT_CASE(dm_test_to_connector_type_lvds), + KUNIT_CASE(dm_test_to_connector_type_rgb), + KUNIT_CASE(dm_test_to_connector_type_dp), + KUNIT_CASE(dm_test_to_connector_type_dp_mst), + KUNIT_CASE(dm_test_to_connector_type_dvi_dvii), + KUNIT_CASE(dm_test_to_connector_type_dual_link_dvii), + KUNIT_CASE(dm_test_to_connector_type_dvi_dvid), + KUNIT_CASE(dm_test_to_connector_type_virtual), + KUNIT_CASE(dm_test_to_connector_type_unknown), + /* is_duplicate_mode */ + KUNIT_CASE(dm_test_is_duplicate_mode_empty_list), + KUNIT_CASE(dm_test_is_duplicate_mode_match), + KUNIT_CASE(dm_test_is_duplicate_mode_no_match), + KUNIT_CASE(dm_test_is_duplicate_mode_same_size_different_clock), + /* amdgpu_dm_get_encoder_crtc_mask */ + KUNIT_CASE(dm_test_encoder_crtc_mask_1), + KUNIT_CASE(dm_test_encoder_crtc_mask_2), + KUNIT_CASE(dm_test_encoder_crtc_mask_3), + KUNIT_CASE(dm_test_encoder_crtc_mask_4), + KUNIT_CASE(dm_test_encoder_crtc_mask_5), + KUNIT_CASE(dm_test_encoder_crtc_mask_6), + KUNIT_CASE(dm_test_encoder_crtc_mask_default), + /* get_aspect_ratio */ + KUNIT_CASE(dm_test_aspect_ratio_no_data), + KUNIT_CASE(dm_test_aspect_ratio_4_3), + KUNIT_CASE(dm_test_aspect_ratio_16_9), + KUNIT_CASE(dm_test_aspect_ratio_64_27), + KUNIT_CASE(dm_test_aspect_ratio_256_135), + /* decide_crtc_timing_for_drm_display_mode */ + KUNIT_CASE(dm_test_decide_crtc_timing_scale_enabled), + KUNIT_CASE(dm_test_decide_crtc_timing_matching_mode), + KUNIT_CASE(dm_test_decide_crtc_timing_no_copy), + KUNIT_CASE(dm_test_decide_crtc_timing_no_crtc_clock), + /* amdgpu_dm_connector_funcs_reset */ + KUNIT_CASE(dm_test_funcs_reset_sets_defaults), + KUNIT_CASE(dm_test_funcs_reset_edp_abm_level), + KUNIT_CASE(dm_test_funcs_reset_edp_abm_disabled), + /* amdgpu_dm_connector_atomic_duplicate_state */ + KUNIT_CASE(dm_test_atomic_dup_state_copies_fields), + /* amdgpu_dm_fill_hdr_info_packet */ + KUNIT_CASE(dm_test_fill_hdr_null_metadata), + KUNIT_CASE(dm_test_fill_hdr_zeroes_output), + /* amdgpu_dm_connector_atomic_set_property */ + KUNIT_CASE(dm_test_set_property_scaling_center), + KUNIT_CASE(dm_test_set_property_scaling_aspect), + KUNIT_CASE(dm_test_set_property_scaling_fullscreen), + KUNIT_CASE(dm_test_set_property_scaling_none), + KUNIT_CASE(dm_test_set_property_scaling_unchanged), + KUNIT_CASE(dm_test_set_property_underscan_hborder), + KUNIT_CASE(dm_test_set_property_underscan_vborder), + KUNIT_CASE(dm_test_set_property_underscan_enable), + KUNIT_CASE(dm_test_set_property_abm_sysfs_control), + KUNIT_CASE(dm_test_set_property_abm_level_off), + KUNIT_CASE(dm_test_set_property_abm_level_value), + KUNIT_CASE(dm_test_set_property_unknown), + /* amdgpu_dm_connector_atomic_get_property */ + KUNIT_CASE(dm_test_get_property_scaling_center), + KUNIT_CASE(dm_test_get_property_scaling_aspect), + KUNIT_CASE(dm_test_get_property_scaling_full), + KUNIT_CASE(dm_test_get_property_scaling_off), + KUNIT_CASE(dm_test_get_property_underscan_borders), + KUNIT_CASE(dm_test_get_property_abm_sysfs_allowed), + KUNIT_CASE(dm_test_get_property_abm_level), + KUNIT_CASE(dm_test_get_property_abm_disabled_zero), + KUNIT_CASE(dm_test_get_property_unknown), + /* amdgpu_dm_get_highest_refresh_rate_mode */ + KUNIT_CASE(dm_test_highest_refresh_writeback_null), + KUNIT_CASE(dm_test_highest_refresh_cached_base), + KUNIT_CASE(dm_test_highest_refresh_preferred_mode), + /* amdgpu_dm_is_freesync_video_mode */ + KUNIT_CASE(dm_test_is_freesync_video_mode_null_mode), + KUNIT_CASE(dm_test_is_freesync_video_mode_match), + KUNIT_CASE(dm_test_is_freesync_video_mode_no_match), + {} +}; + +static struct kunit_suite amdgpu_dm_connector_test_suite = { + .name = "amdgpu_dm_connector", + .test_cases = amdgpu_dm_connector_tests, +}; + +kunit_test_suite(amdgpu_dm_connector_test_suite); + +MODULE_AUTHOR("AMD"); +MODULE_DESCRIPTION("KUnit tests for amdgpu_dm_connector"); +MODULE_LICENSE("Dual MIT/GPL"); -- 2.43.0
