STRUCT DMUB_PREOS_INFO(9)

💖 struct dmub_preos_info(9) 💖

okay so bestie, welcome to the Kernel API Manual page for struct dmub_preos_info(9) — yes, that's the manual name right there, folded in all cute so we don't have to copy the boring header line. 🫶 This is the tea on the struct, and we're keeping every field, every reference, and every SEE ALSO link, fr fr.

---

🌸 NAME 🌸

struct dmub_preos_info — preos fw info before loading post os fw.

That's it, that's the whole name section: preos fw info before loading post os fw. Short, mysterious, main character energy. 💅

---

✨ SYNOPSIS ✨

Here's the struct in all its glory — fields exactly as they appear, no cap:

struct dmub_preos_info {
    uint64_t fb_base;
    uint64_t fb_offset;
    uint64_t trace_buffer_phy_addr;
    uint32_t trace_buffer_size;
    uint32_t fw_version;
    uint32_t boot_status;
    uint32_t boot_options;
 };

---

🎀 Members 🎀

The original page just drops the heading Members and then bounces straight to SEE ALSO — like, no member descriptions at all. So I'm not inventing any, because that would be fake tea and we don't do that here. 💀 The field names in the synopsis above are the entire lineup, bestie.

---

🔥 SEE ALSO 🔥

okay so the original points at the Kernel file ./drivers/gpu/drm/amd/display/dmub/dmub_srv.h — DMUB interface and operation(9) — and then lists the whole squad. Here's every single one, exactly:

• 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_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_reg_cmd_execute(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)

Like, the whole friend group showed up. 👑✨

---

mwah 💋 — this page came from the Kernel API Manual, the struct dmub_preos_info(9) page, source ./drivers/gpu/drm/amd/display/..., dated October 2026. Stay slaying, bestie. 🎀✨