STRUCT DRM_GPUSVM_OPS(9)

📦 version 7.3.1, in nixpkgs unstable

✨ struct drm_gpusvm_ops(9) ✨

okay so bestie, this is the manpage for struct drm_gpusvm_ops — it lives in the Kernel API Manual and honestly it's giving "the plug that makes GPU SVM work" energy. it's the ops structure for GPU SVM, and like… it's literally the contract between the DRM core and your GPU driver. no cap. 🫶

🌸 NAME 🌸

struct drm_gpusvm_ops — the operations structure for GPU SVM. that's the whole vibe. 💅

🎀 SYNOPSIS 🎀

struct drm_gpusvm_ops {
    struct drm_gpusvm_notifier *(*notifier_alloc)(void);
    void (*notifier_free)(struct drm_gpusvm_notifier *notifier);
    struct drm_gpusvm_range *(*range_alloc)(struct drm_gpusvm *gpusvm);
    void (*range_free)(struct drm_gpusvm_range *range);
    void (*invalidate)(struct drm_gpusvm *gpusvm, struct drm_gpusvm_notifier *notifier, const struct mmu_notifier_range *mmu_range);
};

look at those function pointers. five of them. each one a little baddie with its own job. 👑

🦋 Members 🦋

  • notifier_alloc — allocate a GPU SVM notifier (optional). literally just allocate a GPU SVM notifier, bestie.

Return: pointer to the allocated GPU SVM notifier on success, NULL on failure. so yeah, always check it. 🙈

  • notifier_free — free a GPU SVM notifier (optional). takes notifier: pointer to the GPU SVM notifier to be freed. free a GPU SVM notifier. that's it. that's the whole function. we love a simple queen. ✨
  • range_alloc — allocate a GPU SVM range (optional). takes gpusvm: pointer to the GPU SVM. allocate a GPU SVM range.

Return: pointer to the allocated GPU SVM range on success, NULL on failure. same deal as above, check your pointers fr fr. 🍓

  • range_free — free a GPU SVM range (optional). takes range: pointer to the GPU SVM range to be freed. free a GPU SVM range. iconic, no notes. 💜
  • invalidate — invalidate the GPU SVM notifier (required — like, you have to have this one, it's not optional, it's the main character). 💅
    • gpusvm: pointer to the GPU SVM
    • notifier: pointer to the GPU SVM notifier
    • mmu_range: pointer to the mmu_notifier_range structure

what it does: invalidate the GPU page tables. and here's the cute part — it can safely walk the notifier range RB tree/list in this function. it's called while holding the notifier lock. 🔥

heads up bestie: invalidate is the only one marked required. the other four say (optional). don't be out here leaving it NULL. 😭

🌈 Description 🌈

this structure defines the operations for GPU Shared Virtual Memory (SVM). these operations are provided by the GPU driver to manage SVM ranges and notifiers. that's the whole thing — it's the driver's side of the handshake, the "you handle the ranges and the notifiers, I'll hold the lock" situation. obsessed. 🧚

⭐ SEE ALSO ⭐

kernel file ./include/drm/drm_gpusvm.h — plus the whole friend group:

like, read them all. iykyk. 🔥

💖 that's the page!! this one came from <pink>./include/drm</pink>, dated <purple>October 2026</purple>, and it's filed under struct drm_gpusvm_ops(9). go forth and populate your ops struct, bestie — you got this. slay. 👑✨
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