amdgpu_mm_rreg8(9)

✨ amdgpu_mm_rreg8 ✨

okay so bestie, welcome to the amdgpu_mm_rreg8(9) page from the Kernel API Manual — it's a tiny little function that reads a memory mapped IO register and honestly? she's short but she serves. 💅

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🌸 NAME 🌸

amdgpu_mm_rreg8 — read a memory mapped IO register 🫶

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🎀 SYNOPSIS 🎀

uint8_t amdgpu_mm_rreg8 (struct amdgpu_device *adev , uint32_t offset );

like, that's the whole vibe. one function, two args, one uint8_t coming back at you. 🦋

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💖 ARGUMENTS 💖

• adev — an amdgpu_device pointer, aka your lil handle to the device, no cap 🎀
• offset — the register offset, and it's byte aligned — don't be out here handing her a misaligned offset, that's not the move 🙈

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🌈 DESCRIPTION 🌈

Returns the 8 bit value from the offset you specified. that's it. that's the whole function. short queen behavior, honestly 👑✨

not me appreciating how a whole manpage can be one sentence — iconic. 💀

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🧚 SEE ALSO 🧚

okay so the source lives in the kernel file ./drivers/gpu/drm/amd/amdgpu/amdgpu_reg_access.c and here's the whole friend group, fr fr:

• amdgpu_device_rreg(9)
• amdgpu_device_xcc_rreg(9)
• amdgpu_mm_wreg8(9)
• amdgpu_device_wreg(9)
• amdgpu_mm_wreg_mmio_rlc(9)
• amdgpu_device_xcc_wreg(9)
• amdgpu_device_indirect_rreg(9)
• amdgpu_device_indirect_rreg64(9)
• amdgpu_device_indirect_wreg(9)
• amdgpu_device_indirect_wreg64(9)

go read the rest of them, iykyk 💜

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and that's the page!! sign-off time: this lil beauty comes from ./drivers/gpu/drm/amd/amdgpu, dated October 2026, and it's the amdgpu_mm_rreg8(9) manual page — periodt. stay aligned, bestie, and go read some registers 💅🌺