ENUM HL_MMU_PAGE_TABLE_LOCATION(9)

πŸ“¦ version 7.3.1, in nixpkgs unstable

🌸 ENUM HL_MMU_PAGE_TABLE_LOCATION 🌸

okay bestie so this one's from the Kernel API Manual and it is exactly what it sounds like β€” it's the little enum that answers the question "where does the MMU page table actually live tho?" πŸ’…


✨ NAME ✨

enum hl_mmu_page_table_location β€” mmu page table location. that's it. that's the whole vibe. it's giving "short and iconic" πŸŽ€


πŸ¦‹ SYNOPSIS πŸ¦‹

enum hl_mmu_page_table_location {
    MMU_DR_PGT ,
    MMU_HR_PGT ,
    MMU_NUM_PGT_LOCATIONS

};

like look at it. three whole members. no cap, it's that simple. πŸ”₯


πŸ‘‘ CONSTANTS πŸ‘‘

okay these are the actual girls, let me introduce you properly πŸ’–

  • MMU_DR_PGT β€” the page-table is located on device DRAM. it's living on the card itself, main character energy, staying home 🏠✨
  • MMU_HR_PGT β€” the page-table is located on host memory. this one's visiting your CPU's side of town, lowkey a commuter πŸš—πŸ’¨
  • MMU_NUM_PGT_LOCATIONS β€” number of page-table locations currently supported. it's the counter, the "how many of y'all are there" member, and rn it's just sitting there being the count πŸ™ˆ

πŸ’œ SEE ALSO πŸ’œ

okay so this list is long and honestly it ate. iykyk. everything here is from the Kernel file ./drivers/accel/habanalabs/common/habanalabs.h and it's basically one giant friend group, so let me introduce everybody fr fr 🌈

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)

and it keeps going, she's not done πŸ’€

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)

still with me? good, we're in the home stretch 🫢

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)

bestie that's like a hundred entries. i'm not exaggerating, i counted with my eyes. every single one is here though, no skips, no "etc." β€” we do NOT do "etc." in this house πŸ’…

okay and for the cute sign-off: this whole thing calls ./drivers/accel/habanalabs/common its home 🏑, and the page is dated October 2026 ⭐ β€” future girl summer, literally. love that for us. bye bestie, go read a struct πŸ¦‹πŸ’–βœ¨

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