amdgpu_debu...gs_didt_read(9)

📦 version 7.3.1, in nixpkgs unstable

💅 amdgpu_debugfs_regs_didt_read — Kernel API Manual ✨

okay so bestie, welcome to the amdgpu_debugfs_regs_didt_read(9) page 💖 this one lives in the Kernel API Manual and it's lowkey a little icon: it reads from a DIDT register. that's it, that's the vibe. let's get into it 🫶

✨ NAME ✨

amdgpu_debugfs_regs_didt_read — read from a DIDT register 🎀

🌸 SYNOPSIS 🌸

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

🦋 ARGUMENTS 🦋

  • f — the open file handle, aka the whole entry point, no cap 🔥
  • buf — user buffer where the read data gets stored, that's her job 💅
  • size — how many bytes we're reading, literally the number of bytes
  • pos — the offset to seek to, slay ⭐

👑 DESCRIPTION 👑

so here's the tea ☕ the lower bits are the BYTE offset of the register you want to read. and the way that matters is: this lets you read multiple registers in a single call, and the returned size reflects that 💖 iconic behavior honestly. one call, many registers, size tells you what you actually got. periodt ✨

🌈 SEE ALSO 🌈

the kernel file, bestie:

./drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c

and the whole friend group 🫶 :

that's the whole page, and honestly? she ate 💀💖

sign-off time: this lil masterpiece comes from ./drivers/gpu/drm/amd/amdgpu, dated October 2026, and yeah — that's the source, that's the version, that's the date. mwah 🎀
📦 where this page comes from