cs_dsp_mock...p_drop_range(9)

💅 NAME 💅

cs_dsp_mock_regmap_drop_range — bestie, this one literally drops a whole range of registers straight out of the cache 🗑️✨

Ok so like, this is from the Kernel API Manual (that's the manual name, keep up 🫶), and it's the little function that says "yeah no, these registers? not cached anymore, bye 👋".

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✨ SYNOPSIS ✨

void cs_dsp_mock_regmap_drop_range (struct cs_dsp_test *priv , unsigned int first_reg , unsigned int last_reg );

Like, that's the whole signature. Void return, three args, no notes 💅 void means it hands nothing back to you, it just does the thing and dips 🙈.

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🎀 ARGUMENTS 🎀

• priv — Pointer to struct cs_dsp_test object. This is the main character, the test context, the vibe provider 💖.
• first_reg — Address of first register to drop. The beginning of the range, the opening act 🌸.
• last_reg — Address of last register to drop. The end of the range, the finale 🦋.

So between first_reg and last_reg you've got your whole range, and this function is like "not me evicting all of you from the cache at once" 😭🔥.

Heads up bestie: it wants register addresses for both ends, not counts or offsets. Address of first, address of last. Don't get cute with it 💀.

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🌈 SEE ALSO 🌈

The kernel file lives at ./drivers/firmware/cirrus/test/cs_dsp_mock_regmap.c — that's the source of truth, go read it if you want the lore 📖👑

And the whole friend group 👯‍♀️:

• cs_dsp_mock_regmap_drop_regs(9) — plural version, for when you have opinions about which ones ✨
• cs_dsp_mock_regmap_drop_bytes(9) — bytes instead of regs, different energy 🍓
• cs_dsp_mock_regmap_drop_system_regs(9) — the system ones, special little guys 👑
• cs_dsp_mock_regmap_is_dirty(9) — the vibe check, is the cache dirty or not 💅
• cs_dsp_mock_regmap_init(9) — the origin story, where it all starts 🧚

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Ok that's the whole page, periodt 💜 This masterpiece comes to you courtesy of /drivers/firmware/cirrus/test (the source/version, iconic), dated October 2026 ⭐ — and yes the page is called cs_dsp_mock...p_drop_range(9), she's got a nickname, we love her for it 🎀🌸