dm_test_get_funcs_rn(9)
β¨ dm_test_get_funcs_rn β kernel API manual, but make it make sense β¨
okay so this is a page from the Kernel API Manual (the <italic>9</italic> section, kernel-flavored, you know the vibe) and today's main character is dm_test_get_funcs_rn. buckle up bestie, it's actually short π
πΈ NAME πΈ
dm_test_get_funcs_rn β the test that checks the Renoir PP SMU function table gets set up right π
π¦ SYNOPSIS π¦
void dm_test_get_funcs_rn (struct kunit *test );
like literally that's it, one argument, no drama β¨
π ARGUMENTS π
testβ the KUnit test context. yes queen, it's the standard one, hand it over and let the harness do its thing π«Ά
π₯ DESCRIPTION π₯
so what does it do? it verifies that DCN 2.1 initializes the Renoir SMU function table. that's the whole assignment. no cap π
like, it's a vibe check for the function table setup β if the table matches what it's supposed to be, we slay; if not, the test says absolutely not π
β SEE ALSO β
the whole friend group, fr fr β every single one of them π
Kernel file:
./drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_pp_smu_test.c
and the iconics, section (9) all of them:
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_unsupported(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)
and that's the page!! π§ credit where it's due: this one comes from the source path ./drivers/gpu/drm/amd/display/... and it's dated October 2026 β so yeah, timestamped and everything, periodt π
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