si_get_xclk(9)

💖 si_get_xclk — get the xclk 💖

okay so real talk, this is a page from the Kernel API Manual (yes, the kernel has lore) and it's lowkey one of the shortest ones you'll ever meet. it's giving "one job, does it well." let's get into it 🫶

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✨ SYNOPSIS ✨

u32 si_get_xclk (struct radeon_device *rdev );

that's it. that's the whole call. no cap. 🎀

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🌸 ARGUMENTS 🌸

• rdev — a radeon_device pointer. that's literally the entire description bestie, don't come for me, i don't write the manpages i just make them cute 💅

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🦋 DESCRIPTION 🦋

okay so what does this thing actually do? it returns the reference clock used by the gfx engine (SI). periodt. that's the whole vibe. it hands you back the reference clock for the gfx engine on SI hardware, and it gives it to you as a u32 (see the synopsis, i didn't make that up). main character energy for such a tiny function honestly 😭

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🔥 SEE ALSO 🔥

• the kernel file itself: ./drivers/gpu/drm/radeon/si.c — go read the source, iykyk 👑
• si_get_allowed_info_register(9)
• si_gfx_is_lockup(9)
• si_vm_decode_fault(9)
• si_get_gpu_clock_counter(9)

all of these are your friends, go say hi 🌈

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ngl, this is a tiny page with a tiny job — but it's exactly the job it says it does, and honestly? obsessed. 🍓

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⭐ and that's the wrap bestie!! this one lives in ./drivers/gpu/drm/radeon, dated October 2026, and yes the header/footer both say si_get_xclk(9) because it's nothing if not consistent 💜 mwah, go clock those references 🧚‍♀️✨