STRUCT SDW_INTEL_CTX(9)

💖 struct sdw_intel_ctx(9) 💖

okay so hi bestie, welcome to the Kernel API Manual entry for struct sdw_intel_ctx — yes it's giving "struct with a whole lot of responsibilities" and honestly? iconic. 🎀

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✨ NAME ✨

struct sdw_intel_ctx — the context allocated by the controller driver probe. like, the little home base the probe sets up for itself. 🏠

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🌸 SYNOPSIS 🌸

struct sdw_intel_ctx {
    int count;
    void __iomem *mmio_base;
    u32 link_mask;
    acpi_handle handle;
    struct sdw_intel_link_dev **ldev;
    struct list_head link_list;
    struct mutex shim_lock;
    u32 shim_mask;
    u32 shim_base;
    u32 alh_base;
    struct sdw_peripherals *peripherals;
 };

(that stray space before the closing }; is canon, don't come for me 💅)

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🦋 Members 🦋

so this is the part where we meet every single member one by one, no skipping, periodt.

• count — the link count. literally how many links we're talking about. 🔢
• mmio_base — the mmio base of SoundWire registers. careful though bestie: it's only used to check hardware capabilities after all power dependencies are settled. so don't go poking at it early, mwah. ⚡
• link_mask — a bit-wise mask listing the SoundWire links reported by the Controller. bit-wise, iykyk. 👑
• handle — the ACPI parent handle. 🪪
• ldev — info for each link, and it's controller-specific and kept opaque here. so like… not our business, respectfully. 🙈
• link_list — a list used to handle interrupts across all links. all of them. every single one. 💀
• shim_lock — a mutex to handle concurrent rmw (read-modify-write) access to the shared SHIM registers. concurrency protection slay 🫶
• shim_mask — flags to track initialization of the SHIM shared registers. 🚩
• shim_base — the sdw shim base. 📍
• alh_base — the sdw alh base. 📍
• peripherals — an array representing Peripherals exposed across all enabled links. 🌈

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⭐ SEE ALSO ⭐

go read these next, bestie, they're all in the Kernel file ./include/linux/soundwire/sdw_intel.h:

• struct sdw_intel_stream_params_data(9)
• struct sdw_intel_stream_free_data(9)
• struct sdw_intel_ops(9)
• struct sdw_intel_acpi_info(9)
• struct sdw_intel_res(9)

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and that's the whole page, no cap 💜 this came out of ./include/linux/soundwire and it's stamped October 2026 — mwah, bye bestie, go forth and probe responsibly 🔥✨