dm_test_mode..._and_modeset(9)

💅 dm_test_mode..._and_modeset(9) — from the Kernel API Manual 🎀

okay so picture this: it's the kernel API manual, it's for the test side of things, and it's about to explain one extremely specific little unit test. bestie, we're in dm_test_mode..._and_modeset(9) territory and honestly? it's giving focused. 🦋

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✨ NAME ✨

dm_test_modereset_required_when_inactive_and_modeset — the test that checks whether modereset is required when inactive and modeset. that's the whole vibe check. no cap. 🫶

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🌸 SYNOPSIS 🌸

void dm_test_modereset_required_when_inactive_and_modeset (struct kunit
*test );

literally one function, one argument, returns nothing (void), and it takes a struct kunit *. that's it, that's the icon. 👑

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⭐ ARGUMENTS ⭐

• test — the KUnit test context 💖. that's the one and only thing you hand it. it's the little test harness wrapper that KUnit uses to know what's going on, and yes she's a pointer. keep her safe.

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🔥 SEE ALSO 🔥

first up, the kernel file herself lives right here:

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

and then — buckle up bestie, this is a long list, and every single one of these is a real sibling test, so we're naming them all. no skipping, no summarising, we don't do that here 🌈:

• dm_test_is_idle(9)
• dm_test_wait_for_idle(9)
• dm_test_soft_reset(9)
• dm_test_set_clockgating_state(9)
• dm_test_set_powergating_state(9)
• dm_test_bandwidth_update(9)
• dm_test_crtc_complete_writeback_no_connector(9)
• dm_test_crtc_complete_writeback_not_pending(9)
• dm_test_vblank_get_counter_out_of_range(9)
• dm_test_vblank_get_counter_no_stream(9)
• dm_test_crtc_get_scanoutpos_invalid_crtc(9)
• dm_test_crtc_get_scanoutpos_no_stream(9)
• dm_test_atomic_get_new_state_empty(9)
• dm_test_atomic_get_new_state_match(9)
• dm_test_atomic_destroy_state_no_context(9)
• dm_test_plane_layer_index_cmp_equal(9)
• dm_test_plane_layer_index_cmp_descending(9)
• dm_test_plane_layer_index_cmp_ascending(9)
• dm_test_fill_color_attr_rgb_format(9)
• dm_test_fill_color_attr_bt601_full(9)
• dm_test_fill_color_attr_bt601_limited(9)
• dm_test_fill_color_attr_bt709_full(9)
• dm_test_fill_color_attr_bt709_limited(9)
• dm_test_fill_color_attr_bt2020_full(9)
• dm_test_fill_color_attr_bt2020_limited(9)
• dm_test_fill_color_attr_invalid_encoding(9)
• dm_test_modereset_not_required_when_active_and_modeset(9)
• dm_test_modereset_not_required_when_inactive_without_modeset(9)
• dm_test_scaling_state_same(9)
• dm_test_scaling_state_scaling_changed(9)
• dm_test_scaling_state_underscan_enabled(9)
• dm_test_scaling_state_underscan_disabled(9)
• dm_test_scaling_state_underscan_border_changed(9)
• dm_test_multisync_trigger_disabled(9)
• dm_test_multisync_trigger_rising(9)
• dm_test_multisync_trigger_falling(9)
• dm_test_master_stream_highest_refresh(9)
• dm_test_master_stream_defaults_to_first(9)
• dm_test_cp_diff_hdcp_type_change(9)
• dm_test_cp_diff_reenable_mode_changed(9)
• dm_test_cp_diff_reenable_no_change(9)
• dm_test_cp_diff_undesired(9)
• dm_test_cp_diff_desired_mode_changed(9)
• dm_test_cp_diff_desired_no_change(9)
• dm_test_cp_diff_update_hdcp_hotplug(9)
• dm_test_cp_diff_stream_reenabled(9)
• dm_test_cp_diff_s3_undesired_to_enabled(9)
• dm_test_cp_diff_desired_to_enabled(9)
• dm_test_cp_diff_desired_to_undesired(9)
• dm_test_per_frame_master_sync_single_stream(9)
• dm_test_per_frame_master_sync_two_streams(9)
• dm_test_per_frame_master_sync_skips_null_stream(9)
• dm_test_apply_delay_null_sink(9)
• dm_test_apply_delay_zero_wait(9)
• dm_test_apply_delay_nonzero_wait(9)

like… that's the whole friend group 😭 and yes, this page is the one about dm_test_modereset_required_when_inactive_and_modeset, the specifically-inactive-and-modeset one — don't get it twisted with the not required twins up there, they are different tests and they know it. 💀

ngl the takeaway is simple: one KUnit context in, one void out, and a whole lot of cousins in SEE ALSO. periodt. 🧚

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and that's the page, bestie! 🍓 little sign-off: this one comes from the source path ./drivers/gpu/drm/amd/display/... and it's dated October 2026 — so mark your calendars, the docs were feeling ✨ahead of their time✨. 💜💅