pt_init_top(9)

💅 pt_init_top(9) — like, the Kernel API Manual page for pt_init_top ✨

okay bestie, real talk: this one's a tiny little function but it's giving main character energy in the page-table-iterator saga 🎀

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🌸 NAME 🌸

pt_init_top — initializes a pt_state right there on the stack, no cap 💖

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✨ SYNOPSIS ✨

struct pt_state pt_init_top (struct pt_range *range );

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🫶 ARGUMENTS 🫶

• range — the range pointer you're embedding into the state. yeah. it just gets tucked in there, iykyk 💅

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🦋 DESCRIPTION 🦋

so the pt_state points at the top most level. that's it, that's the vibe. top-level icon behavior only 👑✨

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🔥 SEE ALSO 🔥

Kernel file ./drivers/iommu/generic_pt/pt_iter.h — go read it, seriously, it's the whole friend group 💜

• pt_check_range(9)
• pt_index_to_va(9)
• pt_entry_fully_covered(9)
• pt_range_to_index(9)
• pt_range_to_end_index(9)
• pt_next_entry(9)
• for_each_pt_level_entry(9)
• pt_load_single_entry(9)
• pt_top_range(9)
• pt_all_range(9)
• pt_upper_range(9)
• pt_make_range(9)
• pt_init(9)
• pt_descend(9)
• pt_walk_range(9)
• pt_range_slice(9)
• pt_top_memsize_lg2(9)
• pt_compute_best_pgsize(9)
• PT_MAKE_LEVELS(9)

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ngl this page is short but she ate. go call the rest of the iterator functions, they're all waiting for you in that header file 🍓🧚

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and that's the whole thing, bestie 💖 this came from ./drivers/iommu/generic_pt, dated October 2026 — mwah, slay, periodt 🌈👑