svm_range_is_valid(9)

✨ NAME ✨

hey bestie, this is svm_range_is_valid(9) from the Kernel API Manual — and it does exactly what it says on the tin: check if virtual address range is valid 💅

---

🦋 SYNOPSIS 🦋

       int svm_range_is_valid (struct kfd_process *p , uint64_t start ,
       uint64_t size );

---

🎀 ARGUMENTS 🎀

• p — current kfd_process 👑
• start — range start address, in pages 🌸
• size — range size, in pages 🦋

---

💖 DESCRIPTION 💖

okay so the vibe check here is simple: a valid virtual address range means it belongs to one or more VMAs ✨ that’s literally the whole thing, no cap.

---

🌈 CONTEXT 🌈

Process context 🫶

---

⭐ RETURN ⭐

0 - OK, otherwise error code 💀

---

🔥 SEE ALSO 🔥

Kernel file: ./drivers/gpu/drm/amd/amdkfd/kfd_svm.c — and these related besties:

• svm_range_unlink(9)
• svm_range_add_to_svms(9)
• svm_range_debug_dump(9)
• svm_range_split_adjust(9)
• svm_range_split(9)
• svm_range_list_lock_and_flush_work(9)
• svm_range_evict(9)
• svm_range_add(9)
• svm_range_cpu_invalidate_pagetables(9)
• svm_range_from_addr(9)
• svm_range_check_vm(9)
• svm_range_best_prefetch_location(9)

---

mwah 💋 — signed off from the source/version spot ./drivers/gpu/drm/amd/amdkfd, dated October 2026 🎀✨