drmm_kmalloc(9)

💖 drmm_kmalloc(9) 💖

okay so this is the Kernel API Manual entry for drmm_kmalloc(9), and bestie, it’s giving “managed memory but make it DRM” energy. no cap.

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🌸 NAME 🌸

• drmm_kmalloc — &drm_device managed kmalloc()

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✨ SYNOPSIS ✨

void * drmm_kmalloc (struct drm_device *dev , size_t size , gfp_t gfp );

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🎀 ARGUMENTS 🎀

• dev — DRM device. the main character device struct, periodt.
• size — size of the memory allocation. literally how much memory we’re asking for.
• gfp — GFP allocation flags. the flags that tell the allocation how to behave.

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💅 DESCRIPTION 💅

This is a drm_device managed version of kmalloc. The allocated memory is automatically freed on the final drm_dev_put. Memory can also be freed before the final drm_dev_put by calling drmm_kfree.

so yeah: it’s the managed-memory vibe, and cleanup is handled for you at the final drm_dev_put — but you can also free it early with drmm_kfree if you need to. iconic behavior, honestly. 🫶

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🦋 SEE ALSO 🦋

• Kernel file ./drivers/gpu/drm/drm_managed.c
• managed resources(9)
• drmm_release_action(9)
• drmm_kstrdup(9)
• drmm_kfree(9)

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— sending love from ./drivers/gpu/drm, dated October 2026, on the drmm_kmalloc(9) page 🫶💖