dm_test_atom...ling_failure(9)
π NAME
Okay so welcome to the dm_test_atom...ling_failure(9) page from the Kernel API Manual, bestie. This one is all about dm_test_atomic_check_scaling_failure β iconic, no notes β and its whole assignment is literally to verify scaling-info failures return. That's the vibe. Periodt. π«Ά
β¨ SYNOPSIS β¨
void dm_test_atomic_check_scaling_failure (struct kunit *test );
That's the signature, copied exactly, space before the ) and all. No cap. π
π ARGUMENTS π
testβ the KUnit test context. Think of it as the little test-world passport this function gets handed. πβ¨
πΈ DESCRIPTION πΈ
So the mission here is to verify if atomic_check returns the scaling-info error before DC validation. Like, before DC validation gets its turn. That's the thing being checked. That's it. That's the whole assignment. Slay. π
π SEE ALSO π
Kernel file: ./drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_plane_test.c
The whole friend group, in order:
dm_test_plane_is_video_format_known_video(9)dm_test_fill_blending_defaults(9)dm_test_fill_blending_premulti_alpha_format(9)dm_test_fill_blending_coverage_alpha_format(9)dm_test_fill_blending_global_alpha(9)dm_test_modifier_has_dcc(9)dm_test_modifier_gfx9_swizzle_mode(9)dm_test_get_plane_formats(9)dm_test_get_plane_modifiers(9)dm_test_fill_dc_scaling_info(9)dm_test_get_min_max_dc_plane_scaling(9)dm_test_get_cursor_position(9)dm_test_format_mod_supported(9)dm_test_fill_gfx12_plane_attributes_from_modifiers(9)dm_test_fill_gfx9_plane_attributes_from_modifiers(9)dm_test_helper_check_state_viewport_reject(9)dm_test_validate_dcc_disabled_returns_success(9)dm_test_validate_dcc_video_non_gfx12_fails(9)dm_test_validate_dcc_missing_cap_func_fails(9)dm_test_validate_dcc_cap_callback_fails(9)dm_test_validate_dcc_not_capable_fails(9)dm_test_validate_dcc_success_and_scan_mapping(9)dm_test_validate_dcc_independent_64b_mismatch_fails(9)dm_test_add_modifier_appends_value(9)dm_test_add_modifier_grows_capacity(9)dm_test_add_modifier_noop_when_mods_null(9)dm_test_fill_gfx9_tiling_info_from_device_pre_10_3(9)dm_test_fill_gfx9_tiling_info_from_device_10_3_plus(9)dm_test_fill_gfx9_tiling_info_from_modifier_linear(9)dm_test_fill_gfx9_tiling_info_from_modifier_pre_nv(9)dm_test_fill_gfx9_tiling_info_from_modifier_nv(9)dm_test_get_format_info(9)dm_test_fill_blending_global_alpha_dcn42(9)dm_test_get_plane_formats_overlay_universal_cap(9)dm_test_get_plane_modifiers_gfx9(9)dm_test_get_plane_modifiers_rv(9)dm_test_get_plane_modifiers_rv_constant_encode(9)dm_test_get_plane_modifiers_gfx10_1(9)dm_test_get_plane_modifiers_gfx10_3(9)dm_test_get_plane_modifiers_gfx11_64k_first(9)dm_test_get_plane_modifiers_gfx11_256k_first(9)dm_test_get_plane_modifiers_gfx12(9)dm_test_fill_gfx9_plane_attributes_dcc(9)dm_test_fill_gfx9_plane_attributes_validate_fails(9)dm_test_fill_gfx9_plane_attributes_dcc_rbplus_64b_no_128bcl(9)dm_test_fill_gfx9_plane_attributes_dcc_rbplus_128b(9)dm_test_fill_gfx9_plane_attributes_dcc_rbplus_unconstrained(9)dm_test_fill_gfx9_plane_attributes_dcc_gfx9_64b(9)dm_test_fill_gfx9_plane_attributes_dcc_gfx9_unconstrained(9)dm_test_fill_gfx12_plane_attributes_block0(9)dm_test_fill_gfx12_plane_attributes_block_unconstrained(9)dm_test_fill_gfx12_plane_attributes_validate_fails(9)dm_test_fill_plane_buffer_attributes_video(9)dm_test_fill_plane_buffer_attributes_gfx12(9)dm_test_get_min_max_dc_plane_scaling_fp16(9)dm_test_helper_check_state_small_viewport_width(9)dm_test_helper_check_state_small_viewport_height(9)dm_test_helper_check_state_bottom_clipped_height(9)dm_test_helper_check_state_scaling_caps(9)dm_test_fill_dc_scaling_info_nv12_dcn1x(9)dm_test_fill_dc_scaling_info_plane_caps(9)dm_test_get_cursor_position_bad_size(9)dm_test_format_mod_supported_d_swizzle_reject(9)dm_test_atomic_async_check_rejects(9)dm_test_atomic_async_check_overlay_cursor(9)dm_test_atomic_check_no_dc_state(9)dm_test_atomic_check_missing_crtc_state(9)dm_test_atomic_check_helper_failure(9)dm_test_atomic_check_color_pipeline_conflict(9)dm_test_panic_flush_no_dc_state(9)dm_test_plane_reset_initializes_state(9)dm_test_plane_duplicate_state_copies_fields(9)dm_test_plane_destroy_state_minimal(9)
And that's the page, bestie! Source/version: ./drivers/gpu/drm/amd/display/... Β· Date: October 2026 Β· Page: dm_test_atom...ling_failure(9). Slay and stay hydrated. πβ¨
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms