STRUCT VSP1_DL_LIST(9)

💖 struct vsp1_dl_list(9) 💖

okay so this is from the Kernel API Manual, and bestie, we are talking about the struct vsp1_dl_list — aka the Display list ✨ (yes that's the NAME, she introduced herself, periodt).

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✨ SYNOPSIS ✨

like, here's literally the whole shape of her, no cap:

struct vsp1_dl_list {
    struct list_head list;
    struct vsp1_dl_manager *dlm;
    struct vsp1_dl_header *header;
    struct vsp1_dl_ext_header *extension;
    dma_addr_t dma;
    struct vsp1_dl_body *body0;
    struct list_head bodies;
    struct vsp1_dl_ext_cmd *pre_cmd;
    struct vsp1_dl_ext_cmd *post_cmd;
    bool allocated;
    bool has_chain;
    struct list_head chain;
    unsigned int flags;
};

she's giving main character struct energy, honestly 🎀

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🌸 Members 🌸

okay let's go member by member, because every single one matters, fr fr:

• list — her entry in the display list manager lists 🦋
• dlm — the display list manager (her manager, her handler, her boss)
• header — display list header
• extension — extended display list header. it's NULL for normal lists 💅 (the extended ones are just built different)
• dma — DMA address for the header
• body0 — first display list body
• bodies — list of extra display list bodies
• pre_cmd — pre command to be issued through extended dl header
• post_cmd — post command to be issued through extended dl header
• allocated — flag to detect double list release 👀 (yes babe, the double-free detector, she's iconic for that)
• has_chain — if true, indicates that there's a partition chain ⛓️
• chain — entry in the display list partition chain
• flags — display list flags, a combination of VSP1_DL_FRAME_END_* 🌈

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👑 SEE ALSO 👑

the kernel file lives right here: ./drivers/media/platform/renesas/vsp1/vsp1_dl.c — mwah, go read it 💜

and these besties are all linked up in the group chat:

• struct vsp1_dl_ext_header(9)
• struct vsp1_pre_ext_dl_body(9)
• struct vsp1_dl_body(9)
• struct vsp1_dl_body_pool(9)
• struct vsp1_dl_cmd_pool(9)
• struct vsp1_dl_manager(9)
• vsp1_dl_body_pool_create(9)
• vsp1_dl_body_pool_destroy(9)
• vsp1_dl_body_get(9)
• vsp1_dl_body_put(9)
• vsp1_dl_body_write(9)
• vsp1_dl_cmd_pool_create(9)
• vsp1_dl_list_get(9)
• vsp1_dl_list_put(9)
• vsp1_dl_list_get_body0(9)
• vsp1_dl_list_add_body(9)
• vsp1_dl_list_add_chain(9)
• vsp1_dlm_irq_frame_end(9)

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ok that's the whole page, nothing skipped, every member accounted for 🫶

and finally, the cute little sign-off at the bottom says it's from ./drivers/media/platform/renes... and it's dated October 2026 — so yeah, she's from the future, we stan a timeless queen ⭐🎀💖