ih_v6_1_get_wptr(9)

💖 ih_v6_1_get_wptr(9) 💖

okay bestie so we're in the Kernel API Manual today and this is genuinely one of those tiny functions that's secretly carrying the whole vibe. it's called ih_v6_1_get_wptr and yes the name is a mouthful but we move 💅

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✨ NAME ✨

ih_v6_1_get_wptr — get the IH ring buffer wptr 🫶

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🌸 SYNOPSIS 🌸

u32 ih_v6_1_get_wptr (struct amdgpu_device *adev , struct amdgpu_ih_ring
*ih );

not me giving you the whole signature — you're welcome, queen 👑

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🎀 ARGUMENTS 🎀

• adev — an amdgpu_device pointer. that's the device bestie, the whole main character of the AMDGPU situation 💜
• ih — an amdgpu_ih_ring pointer. the ring buffer in question, the one we're investigating 🔍

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🦋 DESCRIPTION 🦋

okay so the whole job here is: get the IH ring buffer wptr — that's the write pointer, iykyk — from either the register or the writeback memory buffer. two sources, one pointer, we love a flexible icon ✨

and the way that it's also doing a vibe check on ring buffer overflow?? and dealing with it?? like yes ma'am, multitasking, main character energy fr fr 🔥

and then it returns the value of the wptr. that's it, that's the tea 🍓

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpu/drm/amd/amdgpu/ih_v6_1.c 👀
• ih_v6_1_init_register_offset(9)
• force_update_wptr_for_self_int(9)
• ih_v6_1_toggle_ring_interrupts(9)
• ih_v6_1_toggle_interrupts(9)
• ih_v6_1_enable_ring(9)
• ih_v6_1_irq_init(9)
• ih_v6_1_irq_disable(9)
• ih_v6_1_irq_rearm(9)
• ih_v6_1_set_rptr(9)
• ih_v6_1_self_irq(9)

the whole friend group honestly 😭 go read all of them, they're all icons in their own right 👑

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ngl bestie, this page lives in ./drivers/gpu/drm/amd/amdgpu, it's dated October 2026, and it's serving 🧚 Kernel API Manual energy from start to finish. go off, ih_v6_1_get_wptr(9) 💀💖