amdgpu_debu...idency_write(9)

✨ NAME ✨

amdgpu_debugfs_gfxoff_residency_write — ok so this is literally the function that flips GFXOFF residency logging on and off, bestie 💅

(yes this page comes from the Kernel API Manual, we're in kernel-land today 🎀)

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🌸 SYNOPSIS 🌸

ssize_t amdgpu_debugfs_gfxoff_residency_write (struct file *f , const
char __user *buf , size_t size , loff_t *pos );

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🦋 ARGUMENTS 🦋

• f — the open file handle, your lil entry ticket to the party 🎟️
• buf — user buffer you're writing the data from, this is where the magic bytes live
• size — how many bytes you're writing, the count, the amount, the whole vibe check
• pos — the offset to seek to, iykyk 📍

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💖 DESCRIPTION 💖

okay so here's the tea 🍓 — the whole function is a toggle, no cap:

• write a 32-bit non-zero value → logging starts, we're SO on 🔥
• write a 32-bit zero → logging stops, pack it up, show's over 😭

that's it. that's the whole function. she's simple, she's iconic, she's a binary switch and honestly? respect. 👑

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c — the source file this whole situation lives in 🫶
• amdgpu_debugfs_process_reg_op(9)
• amdgpu_debugfs_regs_pcie_read(9)
• amdgpu_debugfs_regs_pcie_write(9)
• amdgpu_debugfs_regs_pcie64_read(9)
• amdgpu_debugfs_regs_pcie64_write(9)
• amdgpu_debugfs_regs_didt_read(9)
• amdgpu_debugfs_regs_didt_write(9)
• amdgpu_debugfs_regs_smc_read(9)
• amdgpu_debugfs_regs_smc_write(9)
• amdgpu_debugfs_gca_config_read(9)
• amdgpu_debugfs_sensor_read(9)
• amdgpu_debugfs_gfxoff_residency_read(9)
• amdgpu_debugfs_gfxoff_count_read(9)
• amdgpu_debugfs_gfxoff_write(9)
• amdgpu_debugfs_gfxoff_read(9)
• amdgpu_debugfs_regs_init(9)

like, the whole friend group is here, go say hi to all of them 🧚✨

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bestie this is kernel API territory — you're writing into driver debugfs, so know what you're doing before you yeet bytes at it, fr fr 💀

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okay that's the page!! from ./drivers/gpu/drm/amd/amdgpu, dated October 2026, page name amdgpu_debu...idency_write(9) — mwah, love u, bye 💜🎀