dmub_srv_reg_cmd_execute(9)

💅 dmub_srv_reg_cmd_execute(9)

okay bestie, you're reading the dmub_srv_reg_cmd_execute(9) page in the Kernel API Manual, and we're gonna make it make sense, no cap. This is the little function that handles one command for the dmub, and yes it's giving very specific main-character energy ✨

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🌸 SYNOPSIS 🌸

enum dmub_status dmub_srv_reg_cmd_execute (struct dmub_srv *dmub , union
dmub_rb_cmd *cmd );

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🎀 ARGUMENTS 🎀

• dmub — the dmub service. That's the whole service vibe right there 💖
• cmd — the command packet to be executed. This is the actual command tea being sent 🫖

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🦋 DESCRIPTION 🦋

okay so literally: this function executes a single command for the dmub. One command. That's the assignment. It understood the assignment and it's doing it 💅

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🔥 RETURN 🔥

• DMUB_STATUS_OK — success 🎉
• DMUB_STATUS_INVALID — unspecified error 😭

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👑 SEE ALSO 👑

the whole crew is here, and yes every single one of them is iconic:

• Kernel file ./drivers/gpu/drm/amd/display/dmub/dmub_srv.h
• DMUB interface and operation(9)
• struct dmub_region(9)
• struct dmub_window(9)
• struct dmub_fb(9)
• struct dmub_srv_region_params(9)
• struct dmub_srv_fw_meta_info_params(9)
• struct dmub_srv_region_info(9)
• struct dmub_srv_memory_params(9)
• struct dmub_srv_fb_info(9)
• struct dmub_soc_fb_info(9)
• struct dmub_diagnostic_data(9)
• struct dmub_preos_info(9)
• struct dmub_srv_base_funcs(9)
• struct dmub_srv_hw_funcs(9)
• struct dmub_srv_create_params(9)
• struct dmub_srv(9)
• struct dmub_notification(9)
• dmub_srv_create(9)
• dmub_srv_destroy(9)
• dmub_srv_calc_region_info(9)
• dmub_srv_has_hw_support(9)
• dmub_srv_is_hw_init(9)
• dmub_srv_hw_init(9)
• dmub_srv_hw_reset(9)
• dmub_srv_fb_cmd_queue(9)
• dmub_srv_fb_cmd_execute(9)
• dmub_srv_wait_for_hw_pwr_up(9)
• dmub_srv_wait_for_auto_load(9)
• dmub_srv_wait_for_phy_init(9)
• dmub_srv_wait_for_pending(9)
• dmub_srv_wait_for_idle(9)
• dmub_srv_send_gpint_command(9)
• dmub_srv_get_gpint_response(9)
• dmub_srv_get_gpint_dataout(9)
• dmub_srv_flush_buffer_mem(9)
• dmub_srv_get_fw_boot_status(9)
• dmub_srv_send_inbox0_cmd(9)
• dmub_srv_wait_for_inbox0_ack(9)
• dmub_srv_subvp_save_surf_addr(9)
• dmub_srv_set_power_state(9)
• dmub_srv_cmd_get_response(9)
• dmub_srv_sync_inboxes(9)
• dmub_srv_wait_for_inbox_free(9)
• dmub_srv_update_inbox_status(9)
• dmub_srv_get_preos_info(9)
• dmub_srv_get_fw_meta_info_from_raw_fw(9)

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sign-off bestie: source/version is ./drivers/gpu/drm/amd/display/..., dated October 2026, and that's the whole dmub_srv_reg_cmd_execute(9) moment 🫶✨