vega10_ih_get_wptr(9)

🎀 vega10_ih_get_wptr(9) 🎀

okay so bestie, welcome to the Kernel API Manual — this one's a whole function called vega10_ih_get_wptr, and honestly? she's giving "small but crucial" energy. let's get into it 💅

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✨ NAME ✨

vega10_ih_get_wptr — get the IH ring buffer wptr 👑

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✨ SYNOPSIS ✨

u32 vega10_ih_get_wptr (struct amdgpu_device *adev , struct
       amdgpu_ih_ring *ih );

like, she takes two args and hands you back a u32. no cap. 🌸

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✨ ARGUMENTS ✨

• adev — an amdgpu_device pointer, i.e. your device bestie 🫶
• ih — the IH ring buffer you're fetching the wptr from, literally what it says on the tin ✨

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✨ DESCRIPTION ✨

so what she actually does: she gets the IH ring buffer wptr from either the register or the writeback memory buffer (VEGA10), depending on the vibe. and she does NOT just stop there — she also checks for ring buffer overflow and deals with it, because she's a responsible icon 💖

returns the value of the wptr. periodt. 🔥

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✨ SEE ALSO ✨

kernel file: ./drivers/gpu/drm/amd/amdgpu/vega10_ih.c 📁

the whole friend group, fr fr:

• vega10_ih_init_register_offset(9)
• vega10_ih_toggle_ring_interrupts(9)
• vega10_ih_toggle_interrupts(9)
• vega10_ih_enable_ring(9)
• vega10_ih_irq_init(9)
• vega10_ih_irq_disable(9)
• vega10_ih_irq_rearm(9)
• vega10_ih_set_rptr(9)
• vega10_ih_self_irq(9)

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ok that's the whole page bestie, go be a main character in ./drivers/gpu/drm/amd/amdgpu 🌈

mwah 💋 — this cutie dropped October 2026, lives under ./drivers/gpu/drm/amd/amdgpu, and answers to the name vega10_ih_get_wptr(9). slay 🎀✨🦋