dm_test_are...nt_edid_data(9)

💅 dm_test_are...nt_edid_data(9) 🎀

okay so real talk: this page is from the Kernel API Manual, and yeah the header up top literally reads dm_test_are...nt_edid_data(9) — it's truncated, bestie, don't panic. The full star of the show is dm_test_are_sinks_equal_different_edid_data, and it's one lil' KUnit test case chilling in AMD's display driver test suite. let's get into it ✨

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🌸 NAME 🌸

dm_test_are_sinks_equal_different_edid_data — the "are sinks equal" test, specifically the different edid data case. it's giving spot-the-difference but make it kernel 🦋

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✨ SYNOPSIS ✨

void dm_test_are_sinks_equal_different_edid_data (struct kunit *test );

that's it. that's the whole signature. one function, one argument, zero drama 💅

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🎀 ARGUMENTS 🎀

• test — the KUnit test context. that's the one thing it takes, and honestly it's all it needs 🫶

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🔥 SEE ALSO 🔥

first up, the kernel file this whole situation lives in:

./drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_irq_test.c

and now… the entire squad. like, the whole group chat. every single one of these is a sibling test in the same file, and yes i'm listing all of them because they all ate 👑

dm_test_hpd_to_dal_irq_source_hpd1(9),
dm_test_hpd_to_dal_irq_source_hpd2(9),
dm_test_hpd_to_dal_irq_source_hpd3(9),
dm_test_hpd_to_dal_irq_source_hpd4(9),
dm_test_hpd_to_dal_irq_source_hpd5(9),
dm_test_hpd_to_dal_irq_source_hpd6(9),
dm_test_hpd_to_dal_irq_source_invalid(9),
dm_test_hpd_to_dal_irq_source_out_of_range(9),
dm_test_are_sinks_equal_both_null(9),
dm_test_are_sinks_equal_first_null(9),
dm_test_are_sinks_equal_second_null(9),
dm_test_are_sinks_equal_different_signal(9),
dm_test_are_sinks_equal_different_edid_length(9),
dm_test_are_sinks_equal_identical(9),
dm_test_are_sinks_equal_zero_length(9),
dm_test_are_sinks_equal_full_edid_identical(9),
dm_test_are_sinks_equal_full_edid_last_byte_differs(9),
dm_test_notification_str_no_data(9),
dm_test_notification_str_aux_reply(9),
dm_test_notification_str_hpd(9),
dm_test_notification_str_hpd_irq(9),
dm_test_notification_str_set_config(9),
dm_test_notification_str_dpia(9),
dm_test_notification_str_hpd_sense(9),
dm_test_notification_str_fused_io(9),
dm_test_notification_str_unknown(9),
dm_test_irq_init_initializes_lists(9),
dm_test_irq_register_rejects_null_params(9),
dm_test_irq_register_rejects_invalid_context(9),
dm_test_irq_register_rejects_invalid_source(9),
dm_test_irq_register_adds_low_context_handler(9),
dm_test_irq_register_adds_high_context_handler(9),
dm_test_irq_register_multiple_handlers(9),
dm_test_irq_register_separate_contexts(9),
dm_test_irq_unregister_rejects_invalid_source(9),
dm_test_irq_unregister_rejects_null_handler(9),
dm_test_irq_unregister_handler_not_found(9),
dm_test_irq_fini_removes_registered_handlers(9),
dm_test_irq_fini_on_empty_tables(9),
dm_test_get_crtc_by_otg_inst_returns_match(9),
dm_test_get_crtc_by_otg_inst_returns_null(9),
dm_test_get_crtc_by_otg_inst_empty_list(9),
dm_test_set_irq_funcs(9),
dm_test_irq_suspend_empty(9),
dm_test_irq_resume_early_empty(9),
dm_test_irq_resume_late_empty(9),
dm_test_irq_suspend_registered(9),
dm_test_irq_suspend_disables_polling(9),
dm_test_irq_resume_early_registered(9),
dm_test_irq_resume_late_registered(9),
dm_test_irq_resume_late_enables_polling(9),
dm_test_hpd_rx_irq_create_workqueue(9),
dm_test_hpd_rx_irq_work_suspend_null(9),
dm_test_hpd_rx_irq_work_suspend_flushes(9),
dm_test_set_crtc_irq_state_no_crtc(9),
dm_test_set_pflip_irq_state_no_crtc(9),
dm_test_set_vline0_irq_state_no_crtc(9),
dm_test_set_vupdate_irq_state_no_crtc(9),
dm_test_set_crtc_irq_state_otg_disabled(9),
dm_test_set_crtc_irq_state_enable(9),
dm_test_set_pflip_irq_state_disable(9),
dm_test_set_vline0_irq_state_enable(9),
dm_test_set_vupdate_irq_state_enable(9),
dm_test_set_crtc_irq_state_allows_idle(9),
dm_test_irq_immediate_work_empty(9),
dm_test_irq_immediate_work_invokes_handler(9),
dm_test_irq_immediate_work_invokes_all(9),
dm_test_irq_schedule_work_empty(9),
dm_test_irq_schedule_work_queues_handler(9),
dm_test_irq_schedule_work_requeue_fallback(9),
dm_test_set_hpd_irq_state_null_dc(9),
dm_test_set_dmub_outbox_irq_state_null_dc(9),
dm_test_set_dmub_trace_irq_state_null_dc(9),
dm_test_outbox_init_null_dc(9),
dm_test_hpd_init_empty_connectors(9),
dm_test_hpd_fini_empty_connectors(9),
dm_test_hpd_init_fini_with_connectors(9),
dm_test_hpd_init_fini_analog_connector(9),
dm_test_hpd_init_fini_irq_ref(9),
dm_test_hpd_rx_offload_work_no_connector(9),
dm_test_hpd_rx_offload_work_no_connection(9),
dm_test_hpd_rx_offload_work_automated_test(9),
dm_test_hpd_rx_offload_work_link_loss(9),
dm_test_hdmi_hpd_debounce_detect_false(9),
dm_test_hdmi_hpd_debounce_reallow_idle(9),
dm_test_handle_hpd_irq_disabled(9),
dm_test_handle_hpd_irq_helper_debounce_schedule(9),
dm_test_handle_hpd_irq_helper_debounce_release_prev(9),
dm_test_handle_hpd_irq_helper_detect_false(9),
dm_test_handle_hpd_rx_irq_disabled(9),
dm_test_schedule_hpd_rx_offload_work(9),
dm_test_handle_hpd_rx_irq_no_left_work(9),
dm_test_handle_hpd_rx_irq_automated_test(9),
dm_test_handle_hpd_rx_irq_msg_rdy(9),
dm_test_handle_hpd_rx_irq_link_loss(9),
dm_test_dmub_hpd_callback_null_inputs(9),
dm_test_dmub_hpd_callback_invalid_index(9),
dm_test_dmub_hpd_callback_empty_connectors(9),
dm_test_dmub_hpd_callback_unknown_type_match(9),
dm_test_dmub_hpd_callback_hpd_type(9),
dm_test_dmub_hpd_callback_hpd_irq_type(9),
dm_test_register_hpd_handlers_empty(9),
dm_test_register_hpd_handlers_valid(9),
dm_test_register_hpd_handlers_invalid_hpd(9),
dm_test_register_hpd_handlers_invalid_hpd_rx(9),
dm_test_register_hpd_handlers_dmub_outbox(9),
dm_test_pflip_high_irq_no_crtc(9),
dm_test_pflip_high_irq_not_submitted(9),
dm_test_vupdate_high_irq_no_crtc(9),
dm_test_crtc_high_irq_no_crtc(9),
dm_test_crtc_high_irq_vrr_pre_ai(9),
dm_test_crtc_high_irq_vrr_ai_no_stream(9),
dm_test_handle_hpd_work_out_of_range(9),
dm_test_dmub_outbox1_low_irq_empty(9),
dm_test_dmub_outbox1_low_irq_no_handler(9),
dm_test_dmub_outbox1_low_irq_direct_callback(9),
dm_test_dmub_outbox1_low_irq_offload(9),
dm_test_dce110_register_irq_handlers_rejects_uninitialized_sources(9),
dm_test_dce110_register_irq_handlers_one_crtc(9),
dm_test_dcn10_register_irq_handlers_zero_crtc(9),
dm_test_dcn10_register_irq_handlers_one_crtc(9),
dm_test_register_outbox_irq_handlers_without_dmub(9),
dm_test_register_outbox_irq_handlers_with_dmub(9),
dm_test_irq_handler_dispatches_work(9),
dm_test_handle_vmin_vmax_update(9)

like i said. the whole squad. 125 of them, all (9), all iconic 🌈

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ngl there are no options, no environment variables, no exit statuses and no warnings on this page — it's a two-second read and that's the vibe. what you see is what you get 🧚

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and that's a wrap, bestie 💖 this page came from the source ./drivers/gpu/drm/amd/display/... and it's dated October 2026 — so yeah, future-dated docs, main character energy. go forth and test those sinks 🫶👑