STRUCT HL_DEBUGFS_CFG_ACCESS(9)

🎀 struct hl_debugfs_cfg_access — Kernel API Manual 🎀

okay bestie, so this is a page from the Kernel API Manual, and it's literally all about struct hl_debugfs_cfg_access, which — and I cannot stress this enough — saves debugfs config region access requests history. That's it. That's the whole vibe. It's a lil history-keeper. A little scrapbook of config region accesses. Obsessed. 💅

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✨ NAME ✨

struct hl_debugfs_cfg_access — saves debugfs config region access requests history.

Like, it's the memory journal for who touched the config region and when. No cap. 🦋

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🌸 SYNOPSIS 🌸

struct hl_debugfs_cfg_access {
    struct hl_debugfs_cfg_access_entry
cfg_access_list[HL_DBGFS_CFG_ACCESS_HIST_LEN];
    u32 head;
    spinlock_t lock;
 };

That's the whole struct, copied character-for-character, because we do not mess with the code. 🫶

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💖 Members 💖

• cfg_access_list — literally the list of objects describing config region access requests. It's the receipts folder, bestie. Every access request gets its lil description in here. ✨
• head — the next valid index to add a new entry to in cfg_access_list. Think of it as the "you are here" sticker on the scrapbook page — it's where the next entry goes. 📍

also yes, lock is in the struct — it's a spinlock_t and it's right there in the synopsis. The Members section only describes the two above, so I'm not gonna invent lore about the lock. iykyk. 🔒

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👑 SEE ALSO 👑

Kernel file ./drivers/accel/habanalabs/common/habanalabs.h, plus this absolutely iconic roster of things that are, fr fr, a lot:

• 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_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_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)

yeah that's the whole list, every single one, no skipping, we don't gatekeep here 💀✨

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and that's the page bestie!! 🧚 no notes, she ate. this one came from ./drivers/accel/habanalabs/common, dated October 2026 — mwah, sending you off with a 🫶 and a very slay day 💖🌈⭐