STRUCT DMUB_CLOCKS(9)

🌸 struct dmub_clocks(9) — Kernel API Manual 🌸

okay so bestie, welcome to the kernel API manual page for struct dmub_clocks 💅 we're in the kernel docs, section 9, and this little cutie is all about clock update notification. yes, it literally just tells you the clocks changed. that's the whole vibe. it's giving "messenger, not the message" ✨

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💖 NAME 💖

struct dmub_clocks — Clock update notification.

like, that's it. that's the name. no cap, sometimes the kernel is refreshingly direct 🫶

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✨ SYNOPSIS ✨

here's the whole struct, character for character, don't touch my formatting bestie:

struct dmub_clocks {
    uint32_t dispclk_khz;
    uint32_t dppclk_khz;
    uint32_t dcfclk_khz;
    uint32_t dcfclk_deep_sleep_khz;
 };

so we've got four uint32_t fields and every single one of them is a frequency in kHz — the _khz suffix is doing so much work here and honestly? iconic 💅

• dispclk_khz — the display clock, in kHz 🌈
• dppclk_khz — the DPP clock, in kHz 🎀
• dcfclk_khz — the DCF clock, in kHz 🦋
• dcfclk_deep_sleep_khz — the DCF clock for deep sleep, also in kHz 😴✨ yes she naps at a different frequency, queen behaviour

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🧚 Members 🧚

okay so here's the thing — this section is literally empty in the original. no bullets, no descriptions, nothing. the heading is just standing there, alone, main character energy with zero dialogue 💀 so I'm not gonna invent anything, because inventing facts is not the move. the members are up in the SYNOPSIS and that's where they live. periodt 🫶

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👑 SEE ALSO 👑

bestie brace yourself, this list is enormous and I refuse to drop a single one. everything here is from the kernel file ./drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h, and every reference is section 9:

• 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) 🦋 (yes, comand, that's exactly how it's spelled, I don't make the rules 💅)
• 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_fams2_allow_delay_check_mode(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) 😴
• enum dmub_cmd_clk_mgr_type(9) ⏰ (clock mgr!! our people!!)
• 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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ngl bestie, if you're reading this page expecting lore drops, this struct is a pure data carrier — four uint32_t kHz values and a dream. it doesn't take a single option, it doesn't have environment variables, it doesn't return an exit status, it doesn't handle signals, and it doesn't throw errors at you. the manpage has no bugs section, no author, no license, no copyright — just the NAME, the SYNOPSIS, an empty Members heading, and that absolutely unhinged SEE ALSO. iykyk 💀✨

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okay my love, that's the whole page 🫶 shoutout to the kernel file ./drivers/gpu/drm/amd/display/... for being our source, and to October 2026 for the timestamp — this page is literally struct dmub_clocks(9) from top to bottom, and it ate. slay, bye bestie 💖🎀🦋