STRUCT INTEL_DISPLAY_PARENT_INTERFACE(9)

🎀 NAME 🎀

okay so bestie, welcome to struct intel_display_parent_interface(9) — the Kernel API Manual page for struct intel_display_parent_interface, aka the services the parent driver provides to display. That's the whole vibe: parent driver says “here's my stuff,” display driver says “slay, I'll use it.” 💖

✨ SYNOPSIS ✨

here's the struct, no cap — copied exactly:

       struct intel_display_parent_interface {
           const struct intel_display_bo_interface *bo;
           const struct intel_display_dpt_interface *dpt;
           const struct intel_display_dsb_interface *dsb;
           const struct intel_display_fb_pin_interface *fb_pin;
           const struct intel_display_frontbuffer_interface *frontbuffer;
           const struct intel_display_hdcp_interface *hdcp;
           const struct intel_display_initial_plane_interface *initial_plane;
           const struct intel_display_irq_interface *irq;
           const struct intel_display_panic_interface *panic;
           const struct intel_display_overlay_interface *overlay;
           const struct intel_display_pc8_interface *pc8;
           const struct intel_display_pcode_interface *pcode;
           const struct intel_display_rpm_interface *rpm;
           const struct intel_display_rps_interface *rps;
           const struct intel_display_stolen_interface *stolen;
           const struct intel_display_vlv_iosf_interface *vlv_iosf;
           struct {
             void (*fence_priority_display)(struct dma_fence *fence);
             bool (*has_auxccs)(struct drm_device *drm);
             bool (*has_fenced_regions)(struct drm_device *drm);
             bool (*vgpu_active)(struct drm_device *drm);
           };
        };

🧚 MEMBERS 🧚

• bo — BO interface. literally the bo interface, bestie 💅
• dpt — DPT interface. Optional. 🦋
• dsb — DSB buffer interface. iconic buffer behavior ✨
• fb_pin — Framebuffer pin interface. pin it, periodt 📌
• frontbuffer — Frontbuffer interface. main character energy 🌸
• hdcp — HDCP GSC interface. secure vibes only 🔐
• initial_plane — Initial plane interface. first impression = everything 💖
• irq — IRQ interface. interrupt me, i'm listening 😭
• panic — Panic interface. not me panicking 💀
• overlay — Overlay. Optional. layer it up 🎀
• pc8 — PC8 interface. Optional. low-power era 🧚
• pcode — Pcode interface. pcode said what it said 🫶
• rpm — Runtime PM functions. runtime pm go brrr 🔥
• rps — RPS interface. Optional. rps bestie 🌈
• stolen — Stolen memory. stolen memory, not stolen code 👑
• vlv_iosf — VLV IOSF sideband. Optional. sideband slay 💜
• {unnamed_struct} — anonymous. mysterious little anonymous struct 🙈
• fence_priority_display — Set display priority. Optional. priority: display 🍓
• has_auxccs — Are AuxCCS formats supported by the parent. Optional. yes/no bestie ⭐
• has_fenced_regions — Support legacy fencing? Optional. legacy fencing question mark 💀
• vgpu_active — Is vGPU active? Optional. vGPU active check, iykyk 🦋

💜 DESCRIPTION 💜

so here's the tea: the parent, or core, driver provides a pointer to this structure to display driver when calling intel_display_device_probe. The display driver uses it to access services provided by the parent driver. The structure may contain sub-struct pointers to group function pointers by functionality — very organized, very demure. ✨

important bestie 🚨: all function and sub-struct pointers must be initialized and callable unless explicitly marked as “optional” below. The display driver will only NULL check the optional pointers. that's the rule, no skipping, periodt 💅

🌈 SEE ALSO 🌈

• Kernel file ./include/drm/intel/display_parent_interface.h — go read it, iykyk 🫶

that's the whole page, bestie. source/version: ./include/drm/intel • date: October 2026. xoxo, your local Unix fairy 🧚💅