ENUM DMUB_FAMS2_ALLOW_DELAY_CHECK_MODE(9)

💖 enum dmub_fams2_allow_delay_check_mode(9) — Kernel API Manual ✨

okay so bestie, welcome to the glittery corner of the Kernel API Manual where we talk about an enum with a truly iconic name. it's enum dmub_fams2_allow_delay_check_mode and yes, say it three times fast, i dare you 🫶

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🌸 NAME 🌸

enum dmub_fams2_allow_delay_check_mode — macroscheduler mode for breaking on excessive p-state request to allow latency 💅

like. it's the little switch that says "hey, that p-state ask is doing the most, maybe pause to let latency breathe" ✨ no cap.

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🦋 SYNOPSIS 🦋

enum dmub_fams2_allow_delay_check_mode {
    FAMS2_ALLOW_DELAY_CHECK_NONE ,
    FAMS2_ALLOW_DELAY_CHECK_FROM_START ,
    FAMS2_ALLOW_DELAY_CHECK_FROM_PREPARE

};

look at her. three members, one dream. the spacing before the commas is exactly as the source intended, don't @ me 🎀

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💜 Constants 💜

so here's the thing bestie — the source literally does not describe these. like it ships them with -- undescribed -- and moves on. main character energy honestly. so i'm giving them their flowers and keeping the honest receipts 🙈

• FAMS2_ALLOW_DELAY_CHECK_NONE — -- undescribed -- (the source says nothing more. she's mysterious. iykyk)
• FAMS2_ALLOW_DELAY_CHECK_FROM_START — -- undescribed -- (again, no description in the original. pure intrigue ✨)
• FAMS2_ALLOW_DELAY_CHECK_FROM_PREPARE — -- undescribed -- (yes, also undescribed. i'm just the messenger 🍓)

no fr, don't make up meanings for these, the manual genuinely leaves all three blank — i'm not about to invent behaviour that isn't in the source 💀

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🌈 SEE ALSO 🌈

it lives in the kernel file ./drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h — and honestly? the whole fam is huge. like a group chat with 70+ members and everyone's typing. here's everyone 💖

• union dmub_addr(9)
• struct dmub_cursor_offload_pipe_data_dcn30_v1(9)
• struct dmub_cursor_offload_pipe_data_dcn401_v1(9)
• struct dmub_cursor_offload_pipe_data_dcn60_v1(9)
• struct dmub_cursor_offload_pipe_data_v1(9)
• struct dmub_cursor_offload_payload_data_v1(9)
• struct dmub_cursor_offload_stream_v1(9)
• struct dmub_cursor_offload_v1(9)
• union dmub_fw_meta_feature_bits(9)
• struct dmub_fw_meta_info(9)
• union dmub_fw_meta(9)
• struct dmcub_trace_buf_entry(9)
• union dmub_fw_boot_status(9)
• enum dmub_fw_boot_status_bit(9)
• enum dmub_cursor_offload_comand_type(9)
• union dmub_fw_boot_options(9)
• enum dmub_shared_state_feature_id(9)
• struct dmub_shared_state_ips_fw(9)
• struct dmub_shared_state_ips_driver(9)
• struct dmub_shared_state_cursor_offload_v1(9)
• struct dmub_shared_state_feature_block(9)
• union dmub_gpint_data_register(9)
• enum dmub_out_cmd_type(9)
• struct dmub_cmd_header(9)
• struct dmub_rb_cmd_common(9)
• struct dmub_cmd_PLAT_54186_wa(9)
• struct dmub_rb_cmd_PLAT_54186_wa(9)
• enum dmub_cmd_mall_type(9)
• struct dmub_rb_cmd_mall(9)
• enum dmub_cmd_cab_type(9)
• struct dmub_rb_cmd_cab_for_ss(9)
• enum dmub_cmd_idle_opt_type(9)
• struct dmub_rb_cmd_idle_opt_dcn_restore(9)
• struct dmub_dcn_notify_idle_cntl_data(9)
• struct dmub_rb_cmd_idle_opt_dcn_notify_idle(9)
• enum dmub_idle_opt_dc_power_state(9)
• struct dmub_idle_opt_set_dc_power_state_data(9)
• struct dmub_rb_cmd_idle_opt_set_dc_power_state(9)
• struct dmub_clocks(9)
• enum dmub_cmd_clk_mgr_type(9)
• struct dmub_rb_cmd_clk_mgr_notify_clocks(9)
• struct dmub_cmd_digx_encoder_control_data(9)
• struct dmub_rb_cmd_digx_encoder_control(9)
• struct dmub_cmd_set_pixel_clock_data(9)
• struct dmub_cmd_enable_disp_power_gating_data(9)
• struct dmub_rb_cmd_enable_disp_power_gating(9)
• struct dmub_dig_transmitter_control_data_v1_7(9)
• union dmub_cmd_dig1_transmitter_control_data(9)
• struct dmub_rb_cmd_dig1_transmitter_control(9)
• struct dmub_rb_cmd_domain_control_data(9)
• struct dmub_rb_cmd_domain_control(9)
• struct dmub_rb_cmd_dpphy_init(9)
• enum dp_aux_request_action(9)
• enum aux_return_code_type(9)
• enum aux_channel_type(9)
• struct aux_transaction_parameters(9)
• struct dmub_rb_cmd_hpd_sense_notify(9)
• enum dmub_phy_fsm_state(9)
• enum dmub_abm_ace_curve_type(9)
• enum dmub_abm_histogram_type(9)
• enum dmub_cmd_panel_cntl_type(9)
• struct dmub_cmd_panel_cntl_data(9)
• struct dmub_rb_cmd_panel_cntl(9)
• struct dmub_cmd_cable_id_input(9)
• struct dmub_cmd_cursor_offload_init_data(9)
• struct dmub_rb_cmd_cursor_offload_init(9)
• struct dmub_cmd_cursor_offload_stream_data(9)
• struct dmub_rb_cmd_cursor_offload_stream_cntl(9)
• union dmub_rb_cmd(9)
• union dmub_rb_out_cmd(9)
• struct dmub_rb_init_params(9)
• struct dmub_rb(9)

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and that's the whole page, bestie — every constant, every reference, nothing dropped, nothing invented. periodt. 💅

sign-off szn 🎀 — this one's from ./drivers/gpu/drm/amd/display/... and it's dated October 2026, so like… future icon behaviour honestly. mwah 💋✨