pt_max_sw_bit(9)

🌸 NAME 🌸

hii bestie, welcome to pt_max_sw_bit(9) from the Kernel API Manual 🎀 this one is giving very "tell me the max software bit" energy.

• pt_max_sw_bit — returns the maximum software bit that’s usable for any level and any entry ✨ periodt.

✨ SYNOPSIS ✨

unsigned int pt_max_sw_bit (struct pt_common *common );

🫶 ARGUMENTS 🫶

• common — the page table. that’s the vibe, no cap 🫶

💅 DESCRIPTION 💅

okay so the swbit you get back from this? it can be passed as bitnr to the other sw_bit functions. literally that’s the whole point, bestie 💅

👑 SEE ALSO 👑

go sip some tea and read these too, iykyk 💖

• kernel file: ./drivers/iommu/generic_pt/pt_common.h
• pt_attr_from_entry(9)
• pt_can_have_leaf(9)
• pt_can_have_table(9)
• pt_clear_entries(9)
• pt_entry_make_write_dirty(9)
• pt_entry_make_write_clean(9)
• pt_entry_is_write_dirty(9)
• pt_dirty_supported(9)
• pt_entry_num_contig_lg2(9)
• pt_entry_oa(9)
• pt_entry_oa_lg2sz(9)
• pt_entry_oa_exact(9)
• pt_full_va_prefix(9)
• pt_has_system_page_size(9)
• pt_install_leaf_entry(9)
• pt_install_table(9)
• pt_item_oa(9)
• pt_load_entry_raw(9)
• pt_max_oa_lg2(9)
• pt_num_items_lg2(9)
• pt_pgsz_lg2_to_level(9)
• pt_possible_sizes(9)
• pt_table_item_lg2sz(9)
• pt_table_oa_lg2sz(9)
• pt_table_pa(9)
• pt_table_ptr(9)
• pt_test_sw_bit_acquire(9)
• pt_set_sw_bit_release(9)
• pt_load_entry(9)

xoxo bestie 💖 — source/version: ./drivers/iommu/generic_pt · date: October 2026 · page: pt_max_sw_bit(9) 🎀