r100_pm_misc(9)

💅 r100_pm_misc(9) — a Kernel API Manual moment

okay bestie, so this one lives in the Kernel API Manual and it's called r100_pm_misc. Yes, "misc" like miscellaneous, like when you throw your whole life in one tote bag. It's a callback, and it's here to finish the vibes of a power state.

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✨ SYNOPSIS ✨

void r100_pm_misc (struct radeon_device *rdev );

that's it. one function, one argument, zero drama. copy it exactly, spaces and all, don't come for me about the space before the ).

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🫶 ARGUMENTS 🫶

• rdev — a radeon_device pointer. that's the whole thing. it's the radeon device you're messing with, bestie, like handing someone the keys to the whole GPU 🚗

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🌸 DESCRIPTION 🌸

so the way that this works: r100_pm_misc sets the non-clock parameters associated with a power state 💅

non-clock means all the other stuff that comes bundled with a power state — voltage, PCIe lanes, etc. literally the little accessories of the power state. the clock stuff is somebody else's job, not ours, not today.

and the "(r1xx-r4xx)" at the end is the cute little range note: this is your fam for the r1xx through r4xx hardware. periodt. 🔥

ngl this is the "set additional pm hw parameters callback" — that's its actual job description. hw = hardware, pm = power management, misc = the rest of the errands. iykyk 🎀

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👑 SEE ALSO 👑

bestie you KNOW we have to list all the siblings, every single one, no skipping:

• Kernel file ./drivers/gpu/drm/radeon/r100.c
• r100_wait_for_vblank(9)
• r100_page_flip(9)
• r100_page_flip_pending(9)
• r100_pm_get_dynpm_state(9)
• r100_pm_init_profile(9)
• r100_pm_prepare(9)
• r100_pm_finish(9)
• r100_gui_idle(9)
• r100_hpd_sense(9)
• r100_hpd_set_polarity(9)
• r100_hpd_init(9)
• r100_hpd_fini(9)
• r100_ring_hdp_flush(9)
• r100_cs_packet_parse_vline(9)

like a whole group chat of functions and r100_pm_misc is one of them. the r100_pm_prepare(9) and r100_pm_finish(9) girlies are literally the before-and-after of this one 🦋

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🌸 ok that's the whole page, you ate that 🌸

and a cute little sign-off for the fine print: this beauty comes from the source path ./drivers/gpu/drm/radeon and it's dated October 2026 💖 slay, go set those non-clock parameters bestie ✨