STRUCT CS_TIMEOUT_INFO(9)

🦋 struct cs_timeout_info(9) — the Kernel API Manual, bestie edition 🦋

okay so this is a page from the Kernel API Manual (yes, struct cs_timeout_info(9), that's the whole vibe), and it's literally just about one little struct that keeps receipts on the last CS timeout that happened 💅

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✨ NAME ✨

struct cs_timeout_info — the info of the last CS timeout that occurred. that's it, that's the whole thing, she's a record-keeper 🎀

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🌸 SYNOPSIS 🌸

struct cs_timeout_info {
    ktime_t timestamp;
    atomic_t write_enable;
    u64 seq;
 };

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💖 Members (the actual main characters) 💖

• timestamp — the CS timeout timestamp. like, when it happened. clocked it, timestamped it, no cap ⏰
• write_enable — if this is set, then writing to the CS parameters in the structure is enabled. otherwise it's disabled, so the first (root cause) CS timeout will not be overwritten 🫶 lowkey the most important detail on this whole page, ngl — the first one is the one that matters, don't let it get clobbered.
• seq — the CS timeout sequence number. the lil counter so you can tell which timeout is which 🔢

fr fr bestie, write_enable being unset is a whole personality trait: it means "don't touch this, this is the original" 💀

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👑 SEE ALSO 👑

so there's a lot here, and we are not skipping a single one, because everything here is family:

Kernel file ./drivers/accel/habanalabs/common/habanalabs.h, 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_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 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. every single one. we ate that list, periodt 🔥

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and that's the page, babes 🧚 this lil cutie lives in ./drivers/accel/habanalabs/common, and she was dated October 2026 — go read her, she's iconic. 💜✨