drm_gem_shmem_pin(9)

💖 drm_gem_shmem_pin(9) 💖

okay bestie so you found yourself a page from the Kernel API Manual and it's literally all about drm_gem_shmem_pin — no cap, this is the one. let's get into it 🎀

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✨ NAME ✨

drm_gem_shmem_pin — pinning the backing pages for a shmem GEM object 🦋

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🌸 SYNOPSIS 🌸

int drm_gem_shmem_pin (struct drm_gem_shmem_object *shmem );

like, that's the whole vibe. one function, one pointer, returns an int. slay 💅

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🧚 ARGUMENTS 🧚

• shmem — the shmem GEM object in question, bestie. this is the thing whose pages we're about to pin. main character energy fr 🔥

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👑 DESCRIPTION 👑

so what does this icon actually do? it makes sure the backing pages are pinned in memory while the buffer is exported. that's it, that's the whole job. it's giving "i will not let your pages wander off" 💜

ngl, "pinned" here is doing a lot of heavy lifting — those pages are staying put while the export is happening. no sneaky page migration, no drama. periodt ✨

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⭐ RETURN ⭐

• 0 on success — we love a clean win 🎉
• a negative error code on failure — and yeah, that means something went wrong 😭

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💫 SEE ALSO 💫

okay this is the friend group, all linked together in the kernel file ./drivers/gpu/drm/drm_gem_shmem_helper.c — go look at overview(9) first if you're new here, iykyk 🌈

• overview(9) — the kernel file ./drivers/gpu/drm/drm_gem_shmem_helper.c overview, start here baby 🫶
• drm_gem_shmem_init(9)
• drm_gem_shmem_create(9)
• drm_gem_shmem_release(9)
• drm_gem_shmem_free(9)
• drm_gem_shmem_unpin(9)
• drm_gem_shmem_create_with_handle(9)
• drm_gem_shmem_dumb_create(9)
• drm_gem_shmem_mmap(9)
• drm_gem_shmem_print_info(9)
• drm_gem_shmem_get_sg_table(9)
• drm_gem_shmem_get_pages_sgt(9)
• drm_gem_shmem_prime_import_sg_table(9)
• drm_gem_shmem_prime_import_no_map(9)

like, that's the whole squad. assemble 💀💖

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and that's the tea, bestie 🍓 this cutie came to you from ./drivers/gpu/drm in October 2026 — file it under iconic kernel lore, k? mwah 💋 drm_gem_shmem_pin(9) forever 🌟