drm_gpusvm_range_find(9)

💅 drm_gpusvm_range_find — a Kernel API Manual moment

okay so this is drm_gpusvm_range_find(9) from the Kernel API Manual, and bestie, it does exactly one (1) thing and it does it iconically. It finds a GPU SVM range from a GPU SVM notifier. That's the whole vibe. ✨

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🌸 NAME 🌸

drm_gpusvm_range_find — find a GPU SVM range from a GPU SVM notifier 🎀

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✨ SYNOPSIS ✨

struct drm_gpusvm_range * drm_gpusvm_range_find (struct
drm_gpusvm_notifier *notifier , unsigned long start , unsigned long end
);

like, that's the whole signature. three args, one pointer back. no cap. 💅

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🫶 ARGUMENTS 🫶

• notifier — a pointer to the GPU SVM notifier structure, i.e. the thing you're searching in 🦋
• start — the start address of the range 🔥
• end — the end address of the range 🔥

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👑 RETURN 👑

A pointer to the drm_gpusvm_range if it's found, or NULL. that's it. found → pointer, not found → NULL. the duality of woman 😭✨

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🌈 SEE ALSO 🌈

okay this list is long but every single one of these is your bestie too, so let me introduce you 💖

Kernel file ./drivers/gpu/drm/drm_gpusvm.c — start here, it's giving main character energy 👑

The concepts, the deep lore:

• Overview(9), Locking(9), Partial Unmapping of Ranges(9), Examples(9), npages_in_range(9)

The notifier girlies:

• drm_gpusvm_notifier_find(9), drm_gpusvm_notifier_invalidate(9), drm_gpusvm_init(9), to_drm_gpusvm_notifier(9), drm_gpusvm_notifier_insert(9), drm_gpusvm_notifier_remove(9), drm_gpusvm_fini(9), drm_gpusvm_notifier_alloc(9), drm_gpusvm_notifier_free(9)

The range girlies:

• to_drm_gpusvm_range(9), drm_gpusvm_range_insert(9), __drm_gpusvm_range_remove(9), drm_gpusvm_range_alloc(9), drm_gpusvm_hmm_pfn_to_order(9), drm_gpusvm_check_pages(9), drm_gpusvm_scan_mm(9), drm_gpusvm_range_chunk_size(9), drm_gpusvm_driver_lock_held(9), drm_gpusvm_find_vma_start(9), drm_gpusvm_range_find_or_insert(9)

The page-management girlies:

• __drm_gpusvm_unmap_pages(9), __drm_gpusvm_free_pages(9), drm_gpusvm_free_pages(9), drm_gpusvm_range_remove(9), drm_gpusvm_range_get(9), drm_gpusvm_range_destroy(9), drm_gpusvm_range_put(9), drm_gpusvm_pages_valid(9), drm_gpusvm_pages_valid_unlocked(9), drm_gpusvm_get_pages(9), drm_gpusvm_unmap_pages(9), drm_gpusvm_range_evict(9), drm_gpusvm_has_mapping(9), drm_gpusvm_range_set_unmapped(9)

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lowkey a reminder: this page is deliberately tiny. read the whole thing, check the SEE ALSO, and then go read the source — that's where the plot is 💀

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and that's the whole page, bestie 🫶 this cutie came out of ./drivers/gpu/drm, dated October 2026, and lives under drm_gpusvm_range_find(9). go find some ranges. slay. 🎀✨🌸