dm_test_get..._unsupported(9)
β¨ NAME β¨
dm_test_get_funcs_unsupported β the vibe check for unsupported DCE versions, bestie π
(this one lives in the Kernel API Manual, fyi π)
πΈ SYNOPSIS πΈ
void dm_test_get_funcs_unsupported (struct kunit *test );
π¦ ARGUMENTS π¦
testβ the KUnit test context, aka the little passport every KUnit test carries around π«Ά
π DESCRIPTION π
Okay so here's the whole thing: this test literally verifies that unsupported DCE versions do not initialize a PP SMU version β and that they don't initialize function table callbacks either. That's it, that's the assignment. No cap, it's just making sure the unsupported paths stay uninitialized instead of getting cute and setting stuff up. π§
π₯ SEE ALSO π₯
π Kernel file
./drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_pp_smu_test.c
β The whole friend group (all (9) sections, all iconic)
struct stub_dpm_context(9)setup_stub_dpm(9)dm_test_default_clock_levels_display(9)dm_test_default_clock_levels_engine(9)dm_test_default_clock_levels_memory(9)dm_test_default_clock_levels_unknown(9)dm_test_dc_to_pp_clock_type_display(9)dm_test_dc_to_pp_clock_type_engine(9)dm_test_dc_to_pp_clock_type_memory(9)dm_test_dc_to_pp_clock_type_dcefclk(9)dm_test_dc_to_pp_clock_type_dcfclk(9)dm_test_dc_to_pp_clock_type_pixelclk(9)dm_test_dc_to_pp_clock_type_fclk(9)dm_test_dc_to_pp_clock_type_phyclk(9)dm_test_dc_to_pp_clock_type_dppclk(9)dm_test_dc_to_pp_clock_type_invalid(9)dm_test_pp_to_dc_clock_levels_within_limit(9)dm_test_pp_to_dc_clock_levels_caps_at_max(9)dm_test_pp_to_dc_clock_levels_latency_within_limit(9)dm_test_pp_to_dc_clock_levels_latency_caps_at_max(9)dm_test_pp_to_dc_clock_levels_voltage_within_limit(9)dm_test_pp_to_dc_clock_levels_voltage_caps_at_max(9)dm_test_get_funcs_rv(9)dm_test_get_funcs_rv_101(9)dm_test_get_funcs_nv(9)dm_test_get_funcs_rn(9)dm_test_apply_display_requirements_dpm_disabled(9)dm_test_apply_clock_for_voltage_invalid_type(9)dm_test_build_pm_display_cfg_scalar_fields(9)dm_test_build_pm_display_cfg_per_display(9)dm_test_build_wm_clock_ranges_dmif(9)dm_test_build_wm_clock_ranges_mcif(9)dm_test_cap_clock_levels_engine_caps(9)dm_test_cap_clock_levels_engine_first_exceeds(9)dm_test_cap_clock_levels_memory_caps(9)dm_test_cap_clock_levels_within_limit(9)dm_test_cap_clock_levels_other_type(9)dm_test_nv_clock_id_dispclk(9)dm_test_nv_clock_id_phyclk(9)dm_test_nv_clock_id_pixelclk(9)dm_test_nv_clock_id_invalid(9)dm_test_apply_display_requirements_dpm_enabled(9)dm_test_get_clock_levels_by_type_dpm_error(9)dm_test_get_clock_levels_by_type_success(9)dm_test_get_clock_levels_by_type_validation_fallback(9)dm_test_get_clock_levels_with_latency_success(9)dm_test_get_clock_levels_with_latency_failure(9)dm_test_get_clock_levels_with_voltage_success(9)dm_test_get_clock_levels_with_voltage_failure(9)dm_test_notify_wm_clock_changes_polaris(9)dm_test_notify_wm_clock_changes_non_polaris(9)dm_test_apply_clock_for_voltage_success(9)dm_test_apply_clock_for_voltage_eopnotsupp(9)dm_test_apply_clock_for_voltage_fail(9)dm_test_nv_set_display_count_ok(9)dm_test_nv_set_display_count_unsupported(9)dm_test_nv_set_display_count_fail(9)dm_test_nv_set_voltage_by_freq_ok(9)dm_test_nv_set_voltage_by_freq_invalid_id(9)dm_test_nv_pstate_handshake_ok(9)dm_test_nv_pstate_handshake_fail(9)dm_test_rn_get_dpm_clock_table_ok(9)dm_test_rn_get_dpm_clock_table_unsupported(9)dm_test_rn_get_dpm_clock_table_fail(9)dm_test_rv_set_wm_ranges(9)dm_test_rv_set_pme_wa_enable(9)dm_test_rv_set_active_display_count(9)dm_test_rv_set_min_deep_sleep_dcfclk(9)dm_test_rv_set_hard_min_dcefclk_by_freq(9)dm_test_rv_set_hard_min_fclk_by_freq(9)dm_test_nv_set_wm_ranges(9)dm_test_nv_set_min_deep_sleep_dcfclk_ok(9)dm_test_nv_set_min_deep_sleep_dcfclk_unsupported(9)dm_test_nv_set_min_deep_sleep_dcfclk_fail(9)dm_test_nv_set_hard_min_dcefclk_ok(9)dm_test_nv_set_hard_min_dcefclk_unsupported(9)dm_test_nv_set_hard_min_dcefclk_fail(9)dm_test_nv_set_hard_min_uclk_ok(9)dm_test_nv_set_hard_min_uclk_unsupported(9)dm_test_nv_set_hard_min_uclk_fail(9)dm_test_nv_get_max_sustainable_clocks_ok(9)dm_test_nv_get_max_sustainable_clocks_unsupported(9)dm_test_nv_get_max_sustainable_clocks_fail(9)dm_test_nv_get_uclk_dpm_states_ok(9)dm_test_nv_get_uclk_dpm_states_unsupported(9)dm_test_nv_get_uclk_dpm_states_fail(9)dm_test_smu_write_watermarks_table_default(9)
okay that's the whole page, you ate that π
β¨ this cutie came from ./drivers/gpu/drm/amd/display/..., dated October 2026, and it's filed under dm_test_get..._unsupported(9) β go forth and read it, bestie ππ¦
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