atomctrl_se...ddress_table(9)

💅 atomctrl_set_mc_reg_address_table — a Kernel API Manual moment

okay so picture this: it's page atomctrl_se...ddress_table(9) from the Kernel API Manual, and it's lowkey serving "one little function that does exactly one little thing." iconic behavior honestly. let's get into it bestie 🫶

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✨ NAME ✨

atomctrl_set_mc_reg_address_table — get the memory clock AC timing registers index from the VBIOS table, where the VBIOS sets the end of the memory clock AC timing registers by ucPreRegDataLength bit6 = 1 💖

like. that's the whole vibe. it reads the index, it knows where the table ends, no cap.

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🌸 SYNOPSIS 🌸

int atomctrl_set_mc_reg_address_table (ATOM_INIT_REG_BLOCK *reg_block ,
pp_atomctrl_mc_reg_table *table );

she takes two pointers and returns an int. tiny signature, big main character energy ✨

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🎀 ARGUMENTS 🎀

• reg_block — the address of the ATOM_INIT_REG_BLOCK 🧚 literally just, here's the block, go off
• table — the address of MCRegTable 💫 the table bestie, the whole point

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⭐ RETURN ⭐

0

that's it. that's the return value. she said "zero" and she meant it 😌 not me being obsessed with a function that only ever hands you a 0 — fr fr, that's the documented value, don't come for me 🫶

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👑 SEE ALSO 👑

• Kernel file ./drivers/gpu/drm/amd/pm/powerplay/hwmgr/ppatomctrl.c — the actual home turf of this whole situation 🏠
• atomctrl_get_memory_pll_dividers_si(9) 🔥
• atomctrl_get_memory_pll_dividers_vi(9) 🔥
• atomctrl_get_voltage_evv_on_sclk(9) ⚡
• atomctrl_get_voltage_evv(9) ⚡

go read those next, iykyk 💜

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ngl the funniest part is the path itself got the ellipsis treatment in the footer too — ./drivers/gpu/drm/amd/pm/power... — so even the source location is being mysterious 🙈

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and that's the page!! mwah 💋 she's from ./drivers/gpu/drm/amd/pm/power... (yes, truncated like that, i don't make the rules), dated October 2026, living under the atomctrl_se...ddress_table(9) header in the Kernel API Manual — slay, periodt, go read your kernel source 🎀🌈💅