STRUCT HL_HR_MMU_FUNCS(9)

💅 struct hl_hr_mmu_funcs 💅

okay so bestie, welcome to the Kernel API Manual — yes that's the manual, we're in the struct hl_hr_mmu_funcs(9) page, and it's literally the home of Device related host resident MMU functions. That's the whole vibe. It's a struct full of function pointers and it's giving "the friend group that handles your page tables" energy. 🎀

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✨ SYNOPSIS ✨

no cap, here's the whole squad, exactly as they show up:

struct hl_hr_mmu_funcs {
    struct pgt_info *(*get_hop0_pgt_info)(struct hl_ctx *ctx);
    struct pgt_info *(*get_pgt_info)(struct hl_ctx *ctx, u64 phys_hop_addr);
    void (*add_pgt_info)(struct hl_ctx *ctx, struct pgt_info *pgt_info, dma_addr_t phys_addr);
    int (*get_tlb_mapping_params)(struct hl_device *hdev, struct hl_mmu_properties **mmu_prop, struct hl_mmu_hop_info *hops, u64 virt_addr, bool *is_huge);
};

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🦋 Members 🦋

these are the four besties. each one is a function pointer, each one has a job, and honestly? they all ate. 🔥

• get_hop0_pgt_info — get page table info structure for HOP0. (yes, HOP0 specifically, she's the main character 👑)
• get_pgt_info — get page table info structure for HOP other than HOP0. (everyone else, still iconic ✨)
• add_pgt_info — add page table info structure to hash.
• get_tlb_mapping_params — get mapping parameters needed for getting TLB info for specific mapping.

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🌈 SEE ALSO 🌈

okay this is the biggest group chat ever and i'm not leaving anyone out, we don't do that here 💜. First up, the kernel file they all live in:

• Kernel file ./drivers/accel/habanalabs/common/habanalabs.h

and now, the ~entire extended friend group, in order, no cuts, no skips:

• 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_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)

lowkey that's a lot of cross-references, but that's the lore and we respect the lore. iykyk 🫶

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and that's the page!! tysm for reading bestie, mwah 💖 this one came from ./drivers/accel/habanalabs/common and it's dated October 2026 — yes, the future, she's ahead of her time ⭐ slay, periodt, go read the other pages now 🧚‍♀️🌸