STRUCT DRM_V3D_MMAP_BO(9)

💅 struct drm_v3d_mmap_bo(9) — like, the whole vibe

okay so bestie, welcome to the Kernel API Manual page for struct drm_v3d_mmap_bo ✨ this is the ioctl argument for mapping V3D BOs, and honestly? it's giving "small struct, big responsibility" 🎀

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🌸 NAME 🌸

struct drm_v3d_mmap_bo — the ioctl argument for mapping V3D BOs. periodt. that's the whole job 💖

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✨ SYNOPSIS ✨

here's the exact shape of it, no notes, no cap:

struct drm_v3d_mmap_bo {
    __u32 handle;
    __u32 flags;
    __u64 offset;
 };

look at those three little fields living their best life 🫶

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🦋 Members 🦋

ngl the original page doesn't spell out each member here — it just drops the heading and moves on, so that's exactly what we're doing too. no invented lore, iykyk 💀

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💜 Description 💜

okay this is the part where it gets iconic — because this doesn't actually perform an mmap. i know. plot twist. 😭

what it does do: it returns the offset you need to use in an mmap on the DRM device node. that's it, that's the whole flex 👑

and why do we care? because that means tools like valgrind end up knowing about the mapped memory. literally so helpful of it 🧚💫

as for flags — there are currently no values for the flags argument, but it may be used in a future extension. so it's just sitting there, cute, waiting for its moment 🌈

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🔥 SEE ALSO 🔥

go read these next, bestie, they're all in the kernel file ./include/uapi/drm/v3d_drm.h and they all ate:

• struct drm_v3d_multi_sync(9)
• struct drm_v3d_submit_cl(9)
• struct drm_v3d_wait_bo(9)
• struct drm_v3d_create_bo(9)
• struct drm_v3d_indirect_csd(9)
• struct drm_v3d_timestamp_query(9)
• struct drm_v3d_reset_timestamp_query(9)
• struct drm_v3d_copy_timestamp_query(9)
• struct drm_v3d_reset_performance_query(9)
• struct drm_v3d_copy_performance_query(9)
• struct drm_v3d_perfmon_get_counter(9)
• struct drm_v3d_perfmon_set_global(9)

so many structs, so little time 💅✨

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alright babes, that's the page 🌸 this lil gem lives under ./include/uapi/drm and it's dated October 2026 — mwah, sending you off with a kiss and the header struct drm_v3d_mmap_bo(9) so you always remember where you came from 💖🎀🦋