STRUCT HL_NOTIFIER_EVENT(9)

💖 struct hl_notifier_event(9) 💖

okay so bestie, we're deep in the kernel API manual (struct hl_notifier_event(9)) and this one is short but it's giving main character energy anyway. it's literally the struct that holds the notifier data structure — that's the whole job, and it ate. ✨

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🌸 NAME 🌸

struct hl_notifier_event — holds the notifier data structure. that's it, that's the vibe. 💅

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🦋 SYNOPSIS 🦋

struct hl_notifier_event {
    struct eventfd_ctx      *eventfd;
    struct mutex            lock;
    u64 events_mask;
 };

look at her. three members, zero notes. iconic. 👑

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💜 Members 💜

• eventfd — the event file descriptor that raises the notifications. like, this is the little messenger that goes "hey bestie, something happened" 🔔
• lock — a mutex lock whose whole entire purpose is protecting the notifier data flows. no cap, don't touch the data without it 🫶
• events_mask — indicates the bitmap events. the mask knows which events are in the group chat 🎀

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🌈 SEE ALSO 🌈

okay so this is the part where the page just. keeps. going. and honestly? respect. the Kernel file lives at ./drivers/accel/habanalabs/common/habanalabs.h and here's the full squad it rolls with, no skips, no cuts, iykyk:

• 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_va_range(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_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, ninety-something references and not one of them skipped. we love a thorough queen. 💀💖

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and that's the whole page, bestie! it's from ./drivers/accel/habanalabs/common, dated October 2026, and it's filed under struct hl_notifier_event(9). go forth and notifier-event responsibly, mwah 🧚🌸