drm_gpusvm_notifier_alloc(9)
π drm_gpusvm_notifier_alloc β Kernel API Manual, bestie edition β¨
okay so real talk, this page lives in the Kernel API Manual section 9 (that's the kernel-functions girlies, iykyk), and it's about one very specific little function. it's giving "small but crucial," and honestly? we're obsessed. let's get into it π
β¨ NAME β¨
drm_gpusvm_notifier_alloc β Allocate GPU SVM notifier π
like, it literally makes a notifier. that's the whole gig. main character energy fr fr.
π¦ SYNOPSIS π¦
struct drm_gpusvm_notifier * drm_gpusvm_notifier_alloc (struct
drm_gpusvm *gpusvm , unsigned long fault_addr );
so you hand it a gpusvm and a fault_addr, and it hands you back a struct drm_gpusvm_notifier *. that's it. that's the exchange. π«Ά
πΈ ARGUMENTS πΈ
gpusvmβ Pointer to the GPU SVM structure. literally just a pointer to your GPU SVM struct, nothing sneaky π§fault_addrβ Fault address. the address where the fault happened, bestie π
π₯ DESCRIPTION π₯
okay so here's the tea: this function allocates and initializes the GPU SVM notifier structure. allocate and initialize. both. it's not just throwing memory at you and dipping β it sets the thing up too. slay π
no cap, that's the whole description. short, sweet, iconic.
β RETURN β
- on success β you get a pointer to the allocated GPU SVM notifier π
- on failure β you get
ERR_PTRπ (so like, check it properly, don't just vibe-check it withNULL)
fr fr:ERR_PTRis notNULL. use yourIS_ERR()-style checks, bestie. don't come for me later π
π SEE ALSO π
okay this list is LONG long, so buckle up, we're going through the whole friend group, no skipping, everyone gets named π
- Kernel file
./drivers/gpu/drm/drm_gpusvm.c Overview(9)Locking(9)Partial Unmapping of Ranges(9)Examples(9)npages_in_range(9)drm_gpusvm_notifier_find(9)drm_gpusvm_range_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_free(9)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)__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)
and that's the page, bestie!! go forth and allocate responsibly π β¨
source: ./drivers/gpu/drm Β· dated October 2026 Β· stay slay, read your manpages, and don't leak your notifiers ππ
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms