STRUCT ACPI_GTDT_DESCRIPTOR(9)

💖 NAME 💖

struct acpi_gtdt_descriptor — the lil struct that keeps all the key info of GTDT around for every function that needs it 🫶

okay so real quick, this page lives in the Kernel API Manual, and honestly? it's a short one. but she's iconic and every field matters, so let's go 💅

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✨ SYNOPSIS ✨

struct acpi_gtdt_descriptor {
    struct acpi_table_gtdt *gtdt;
    void *gtdt_end;
    void *platform_timer;
};

that's the whole vibe. three pointers, zero drama. 🌸

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🎀 MEMBERS 🎀

• gtdt — the pointer to the struct acpi_table_gtdt of the GTDT table. yes bestie, this is the table pointer, the main character of the struct 👑
• gtdt_end — the pointer to the end of the GTDT table. literally the finish line, the end of the table's whole era ⭐
• platform_timer — the pointer to the start of the Platform Timer Structure. where the platform timer section begins, no cap 🕐

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🦋 DESCRIPTION 🦋

so this struct's whole job is to store the key info of the GTDT table. that's it, that's the gig 💀

and listen — the important bit: it should be initialized by acpi_gtdt_init. don't be out here hand-rolling it yourself, let the init function do her thing 🙈✨

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/acpi/arm64/gtdt.c — the whole source file, go read it, it's giving lore 🧚
• acpi_gtdt_map_ppi(9)
• acpi_gtdt_c3stop(9)
• acpi_gtdt_init(9) — the one that initializes this struct, remember? 👀

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and that's the page!! mwah 💋 this one came from ./drivers/acpi/arm64, dated October 2026, and it's the manpage for struct acpi_gtdt_descriptor(9) — go forth and initialize responsibly, bestie 🎀🔥💜