pdc_pci_irt(9)

🎀 pdc_pci_irt(9) 🎀

okay so welcome to the Kernel API Manual, bestie — this page is all about pdc_pci_irt, and it’s giving “small but useful firmware helper.” No cap. 💅

🌸 NAME 🌸

pdc_pci_irt — get the PCI interrupt routing table. ✨

🦋 SYNOPSIS 🦋

       int pdc_pci_irt (unsigned long num_entries , unsigned long hpa , void
       *tbl );

🍓 ARGUMENTS 🍓

• num_entries — the number of entries in the table. Count ‘em, bestie. 🔢
• hpa — the Hard Physical Address of the device. Yes, that HPA. 🫶
• tbl — the original gives no description for this one, so we are not inventing lore. It’s just sitting there with mysterious main-character energy. 😭

🌈 DESCRIPTION 🌈

Get the PCI interrupt routing table for the device at the given HPA. That’s literally the whole description, and it ate. 💖

Similar to PDC_PAT stuff — but added for Forte/Allegro boxes. Slay for those boxes specifically. 🔥

👑 SEE ALSO 👑

Kernel file ./arch/parisc/kernel/firmware.c — and then the whole squad: f_extend(9), convert_to_wide(9), set_firmware_width(9), pdc_emergency_unlock(9), pdc_add_valid(9), pdc_instr(9), pdc_chassis_info(9), pdc_pat_chassis_send_log(9), pdc_chassis_disp(9), __pdc_cpu_rendezvous(9), pdc_cpu_rendezvous_lock(9), pdc_cpu_rendezvous_unlock(9), pdc_pat_get_PDC_entrypoint(9), pdc_chassis_warn(9), pdc_coproc_cfg(9), pdc_iodc_read(9), pdc_system_map_find_mods(9), pdc_system_map_find_addrs(9), pdc_model_info(9), pdc_model_sysmodel(9), pdc_model_versions(9), pdc_model_cpuid(9), pdc_model_capabilities(9), pdc_model_platform_info(9), pdc_cache_info(9), pdc_spaceid_bits(9), pdc_btlb_info(9), pdc_mem_map_hpa(9), pdc_lan_station_id(9), pdc_stable_read(9), pdc_stable_write(9), pdc_stable_get_size(9), pdc_stable_verify_contents(9), pdc_stable_initialize(9), pdc_get_initiator(9), pdc_pci_irt_size(9), pdc_pci_config_read(9), pdc_pci_config_write(9), pdc_tod_read(9), pdc_pim_toc11(9), pdc_pim_toc20(9), pdc_tod_set(9), pdc_iodc_print(9), pdc_iodc_getc(9), pdc_pat_cell_get_number(9), pdc_pat_cell_module(9), pdc_pat_cell_info(9), pdc_pat_cpu_get_number(9), pdc_pat_get_irt_size(9), pdc_pat_get_irt(9), pdc_pat_pd_get_addr_map(9), pdc_pat_pd_get_pdc_revisions(9), pdc_pat_pd_get_platform_counter(9), pdc_pat_io_pci_cfg_read(9), pdc_pat_io_pci_cfg_write(9), pdc_pat_mem_pdt_info(9), pdc_pat_mem_pdt_cell_info(9), pdc_pat_mem_read_cell_pdt(9), pdc_pat_mem_read_pd_pdt(9), pdc_pat_mem_get_dimm_phys_location(9). 💜

Source/version: ./arch/parisc/kernel · date: October 2026 · page: pdc_pci_irt(9). Bye bestie, go route those interrupts 💖✨🎀