STRUCT MULTI_CS_DATA(9)

💖 NAME 💖

Okay so, bestie, we're deep in the Kernel API Manual and this page is all about struct multi_cs_data — literally internal data for multi CS call. That's the whole vibe, no cap. 💅

✨ SYNOPSIS ✨

Here's the struct layout, copied exactly because we do not mess with code:

struct multi_cs_data {
    struct hl_ctx   *ctx;
    struct hl_fence **fence_arr;
    u64 *seq_arr;
    s64 timeout_jiffies;
    s64 timestamp;
    long wait_status;
    u32 completion_bitmap;
    u8 arr_len;
    u8 gone_cs;
    u8 update_ts;
 };

🫶 Members 🫶

• ctx — pointer to the context structure. That's it, that's the pointer.
• fence_arr — array of fences of all CSs.
• seq_arr — array of CS sequence numbers.
• timeout_jiffies — timeout in jiffies for waiting for CS to complete. Jiffies, bestie, not vibes.
• timestamp — timestamp of first completed CS.
• wait_status — wait for CS status. That is the field's whole assignment.
• completion_bitmap — bitmap of completed CSs (1- completed, otherwise 0).
• arr_len — fence_arr and seq_arr array length.
• gone_cs — indication of gone CS (1- there was gone CS, otherwise 0).
• update_ts — update timestamp. 1- update the timestamp, otherwise 0.

🌈 SEE ALSO 🌈

Kernel file ./drivers/accel/habanalabs/common/habanalabs.h — and the whole see-also squad starts with 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).

Then 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).

Also 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).

And 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 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).

Finally, the rest of the crew: 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).

Source/version: ./drivers/accel/habanalabs/common · date: October 2026 · manual: Kernel API Manual. Byeeee, go be iconic with your multi CS data 💖✨