drm_gem_shmem_mmap(9)

💅 drm_gem_shmem_mmap(9) — the Kernel API Manual tea ☕✨

okay so bestie, welcome to the Kernel API Manual entry for drm_gem_shmem_mmap(9) — it's giving "one tiny function, one big job" and honestly we're obsessed 🫶

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🌸 NAME 🌸

drm_gem_shmem_mmap — Memory-map a shmem GEM object 💖

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✨ SYNOPSIS ✨

int drm_gem_shmem_mmap (struct drm_gem_shmem_object *shmem , struct
       vm_area_struct *vma );

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🎀 ARGUMENTS 🎀

• shmem — the shmem GEM object in question, your main character 🧚
• vma — the VMA for the area to be mapped, aka the vibes-address-space situation 🦋

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🔥 DESCRIPTION 🔥

So what does this icon actually do? It implements an augmented version of the GEM DRM file mmap operation — but like, specifically for shmem objects. not me explaining mmap on main 😭 it's literally the upgraded, souped-up edition of the classic, and yes it ate 💅

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⭐ RETURN ⭐

• 0 on success — slay, we mapped 🎉
• a negative error code on failure — and it's not giving, bestie, something went wrong 💀

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpu/drm/drm_gem_shmem_helper.c overview(9)
• drm_gem_shmem_init(9)
• drm_gem_shmem_create(9)
• drm_gem_shmem_release(9)
• drm_gem_shmem_free(9)
• drm_gem_shmem_pin(9)
• drm_gem_shmem_unpin(9)
• drm_gem_shmem_create_with_handle(9)
• drm_gem_shmem_dumb_create(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, the whole shmem squad — go read them all, iykyk 👑

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fr fr memorise the return value: 0 is the good ending, negative error code is the plot twist 🙈

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and that's the whole page, no cap 🌸 this gem dropped October 2026, lives up at ./drivers/gpu/drm, and it's filed under drm_gem_shmem_mmap(9) — mwah, go map something cute 🫶💜🍓