STRUCT HL_VA_RANGE(9)

✨ struct hl_va_range(9) ✨

okay so bestie, welcome to the Kernel API Manual 💖 this one's a lil struct page for <pink>struct hl_va_range</pink> and honestly it's giving "small but mighty". grab a boba, we're learning virtual address ranges today 🧋

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🌸 NAME 🌸

struct hl_va_range — virtual addresses range. that's it, that's the whole vibe 💅

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🦋 SYNOPSIS 🦋

here's the whole glow-up, copy it exactly bestie:

struct hl_va_range {
    struct mutex            lock;
    struct list_head        list;
    u64 start_addr;
    u64 end_addr;
    u32 page_size;
 };

notice the lil space before the closing brace — that's canon, don't come for me 🙈

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🎀 Members 🎀

okay so these are the members, and each one has a job, and each one is doing it flawlessly:

• lock — a struct mutex who has ONE job and that job is protecting the virtual addresses list. she's the bouncer at the club, no cap 🫶
• list — a struct list_head holding the list of virtual addresses blocks available for mappings. lowkey the main character of this struct ngl 👑
• start_addr — a u64, literally just the range start address. periodt.
• end_addr — a u64, the range end address. iconic symmetry with start_addr, we love to see it ✨
• page_size — a u32, the page size of this va range. it's giving "size matters (for pages)" 🍓

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🔥 SEE ALSO 🔥

sooo there is a LOT here and I mean a LOT — this struct runs in the same circles as basically everyone in ./drivers/accel/habanalabs/common/habanalabs.h. here's the full squad, no one left behind fr fr 💜

• enum hl_mmu_page_table_location(9)
• struct iterate_module_ctx(9)
• struct hl_gen_wait_properties(9)
• struct pgt_info(9)
• enum hl_pci_match_mode(9)
• enum hl_fw_component(9)
• enum hl_fw_types(9)
• enum hl_queue_type(9)
• struct hw_queue_properties(9)
• enum vm_type(9)
• enum mmu_op_flags(9)
• enum hl_device_hw_state(9)
• struct hl_mmu_properties(9)
• struct hl_hints_range(9)
• struct asic_fixed_properties(9)
• struct hl_fence(9)
• struct hl_cs_compl(9)
• struct hl_ts_buff(9)
• struct hl_mem_mgr(9)
• struct hl_mem_mgr_fini_stats(9)
• struct hl_mmap_mem_buf_behavior(9)
• struct hl_mmap_mem_buf(9)
• struct hl_cb(9)
• struct hl_sync_stream_properties(9)
• struct hl_encaps_signals_mgr(9)
• struct hl_hw_queue(9)
• struct hl_cq(9)
• struct hl_ts_free_jobs(9)
• struct hl_user_interrupt(9)
• struct timestamp_reg_free_node(9)
• struct hl_user_pending_interrupt(9)
• struct hl_eq(9)
• struct hl_dec(9)
• enum hl_asic_type(9)
• enum hl_pm_mng_profile(9)
• enum hl_pll_frequency(9)
• struct pci_mem_region(9)
• struct static_fw_load_mgr(9)
• struct fw_response(9)
• struct dynamic_fw_load_mgr(9)
• struct pre_fw_load_props(9)
• struct fw_image_props(9)
• struct fw_load_mgr(9)
• struct engines_data(9)
• struct hl_asic_funcs(9)
• enum hl_va_range_type(9)
• struct hl_cs_counters_atomic(9)
• struct hl_dmabuf_priv(9)
• struct hl_cs_outcome(9)
• struct hl_cs_outcome_store(9)
• struct hl_ctx(9)
• struct hl_ctx_mgr(9)
• struct hl_userptr(9)
• struct hl_cs(9)
• struct hl_cs_job(9)
• struct hl_cs_parser(9)
• struct hl_vm_hash_node(9)
• struct hl_vm_hw_block_list_node(9)
• struct hl_vm_phys_pg_pack(9)
• struct hl_vm_va_block(9)
• struct hl_vm(9)
• struct hl_debug_params(9)
• struct hl_notifier_event(9)
• struct hl_fpriv(9)
• struct hl_info_list(9)
• struct hl_debugfs_entry(9)
• struct hl_dbg_device_entry(9)
• struct hl_debugfs_cfg_access_entry(9)
• struct hl_debugfs_cfg_access(9)
• struct hl_hw_obj_name_entry(9)
• struct hl_mon_state_dump(9)
• struct hl_sync_to_engine_map_entry(9)
• struct hl_sync_to_engine_map(9)
• struct hl_state_dump_specs_funcs(9)
• struct hl_state_dump_specs(9)
• struct hl_device_reset_work(9)
• struct hl_mmu_priv(9)
• struct hl_mmu_per_hop_info(9)
• struct hl_mmu_hop_info(9)
• struct hl_hr_mmu_funcs(9)
• struct hl_mmu_funcs(9)
• struct hl_prefetch_work(9)
• struct multi_cs_completion(9)
• struct multi_cs_data(9)
• struct hl_clk_throttle_timestamp(9)
• struct hl_clk_throttle(9)
• struct user_mapped_block(9)
• struct cs_timeout_info(9)
• struct undefined_opcode_info(9)
• struct page_fault_info(9)
• struct razwi_info(9)
• struct hw_err_info(9)
• struct fw_err_info(9)
• struct engine_err_info(9)
• struct hl_error_info(9)
• struct hl_reset_info(9)
• struct eq_heartbeat_debug_info(9)
• struct hl_device(9)
• struct hl_cs_encaps_sig_handle(9)
• struct hl_info_fw_err_info(9)
• hl_ioctl_t(9)
• struct hl_ioctl_desc(9)
• hl_get_sg_info(9)
• hl_mem_area_inside_range(9)
• hl_mem_area_crosses_range(9)

like I said. the whole squad. iykyk 🫶

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ok that's everything, nothing skipped, we ate and left no crumbs 💅

and that's the page bestie!! this lil number lives in ./drivers/accel/habanalabs/common and it's dated October 2026 — yes, the future, because this struct is ahead of its time ⭐ mwah, go read some more manpages, ily 🧚💖