sdma_v3_0_r...it_hdp_flush(9)

💅 NAME

sdma_v3_0_ring_emit_hdp_flush — okay so this one emits an hdp flush on the DMA ring. That's the whole vibe. ✨

(also hi bestie, welcome to the Kernel API Manual, we're doing kernel internals today and honestly? we're gonna slay it 🫶)

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🌸 SYNOPSIS

void sdma_v3_0_ring_emit_hdp_flush (struct amdgpu_ring *ring );

Like — it returns void, so don't go looking for a return value, it simply does the thing and dips. 💀

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🎀 ARGUMENTS

• ring — an amdgpu ring pointer, bestie. That's the ring we're working with, no cap. 🦋

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✨ DESCRIPTION

So what this function actually does: it emits an hdp flush packet on the requested DMA ring. That's it, that's the whole function. Emit the packet, on the ring you asked for, done. 🔥

Lowkey iconic how short the description is. The source file does the heavy lifting iykyk.

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👑 SEE ALSO

• Kernel file ./drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c — the actual file where all this lives, go read it 💜
• sdma_v3_0_init_microcode(9)
• sdma_v3_0_ring_get_rptr(9)
• sdma_v3_0_ring_get_wptr(9)
• sdma_v3_0_ring_set_wptr(9)
• sdma_v3_0_ring_emit_ib(9)
• sdma_v3_0_ring_emit_fence(9)
• sdma_v3_0_gfx_stop(9)
• sdma_v3_0_rlc_stop(9)
• sdma_v3_0_ctx_switch_enable(9)
• sdma_v3_0_enable(9)
• sdma_v3_0_gfx_resume(9)
• sdma_v3_0_rlc_resume(9)
• sdma_v3_0_start(9)
• sdma_v3_0_ring_test_ring(9)
• sdma_v3_0_ring_test_ib(9)
• sdma_v3_0_vm_copy_pte(9)
• sdma_v3_0_vm_write_pte(9)
• sdma_v3_0_vm_set_pte_pde(9)
• sdma_v3_0_ring_pad_ib(9)
• sdma_v3_0_ring_emit_pipeline_sync(9)
• sdma_v3_0_ring_emit_vm_flush(9)
• sdma_v3_0_emit_copy_buffer(9)
• sdma_v3_0_emit_fill_buffer(9)

That's the whole sdma_v3_0 friend group right there, fr fr. Go say hi to all of them. 🌈

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okay that's the page!! mwah 💖 thanks for reading, you ate that — this one's straight out of ./drivers/gpu/drm/amd/amdgpu, dated October 2026, and it's the sdma_v3_0_r...it_hdp_flush(9) page you just crushed. go be the main character of your own kernel, bestie 🧚‍♀️⭐