dm_test_pla...mp_ascending(9)

🌸 dm_test_pla...mp_ascending (9) — from the Kernel API Manual 💅

okay so bestie, welcome to the little corner of the kernel docs where we test the plane layer index comparison, ascending edition. yes, ascending. like your faves' careers 📈. this one lives under section 9 and the manual it's chillin' in is the Kernel API Manual — very official, very demure ✨

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🎀 NAME 🎀

dm_test_plane_layer_index_cmp_ascending — the test for the Plane layer index cmp ascending situation. that's literally the whole name, no notes 💖

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🦋 SYNOPSIS 🦋

void dm_test_plane_layer_index_cmp_ascending (struct kunit *test );

that's it. that's the whole function signature. one param, zero drama, iconic behavior fr fr 👑

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🌈 ARGUMENTS 🌈

• test — The KUnit test context 🧚 that's the little test-world box this function gets handed, and it is not optional, bestie, it's the whole vibe.

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🔥 SEE ALSO 🔥

📁 Kernel file

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

go read the source, it's giving main character energy, iykyk 💜

💫 the whole friend group (aka the other tests)

• 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_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_required_when_inactive_and_modeset(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 fifty-five (55) whole tests bestie, a full roster, a whole era 💀🫶

ngl there's literally no BUGS, no ERRORS, no EXIT STATUS, no ENVIRONMENT section here — this page is just the name, the signature, the one argument, and the see-alsos. no cap. so don't go looking for hidden lore that isn't there 🙈

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and that's the whole thing, bestie 🍓 sign-off time: this page came from ./drivers/gpu/drm/amd/display/... (that's the source path, don't @ me, it's truncated exactly like that in the original) and it's dated October 2026. slay, go write some tests, you're gonna eat 💅✨🎀🦋