si_dma_vm_write_pte(9)

💖 si_dma_vm_write_pte 💖

okay so welcome to the Kernel API Manual, section 9, bestie — this page is all about si_dma_vm_write_pte, and it is literally here to update PTEs by writing them manually. slay. ✨

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🌸 NAME 🌸

si_dma_vm_write_pte — update PTEs by writing them manually. no cap, that's the whole assignment. 🎀

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✨ SYNOPSIS ✨

void si_dma_vm_write_pte (struct amdgpu_ib *ib , uint64_t pe , uint64_t
       value , unsigned count , uint32_t incr );

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💅 ARGUMENTS 💅

• ib — indirect buffer to fill with commands. fill it up, bestie 🫶
• pe — addr of the page entry.
• value — dst addr to write into pe.
• count — number of page entries to update.
• incr — increase next addr by incr bytes.

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🦋 DESCRIPTION 🦋

Update PTEs by writing them manually using DMA (SI). that's it, that's the vibe — manual PTE writing, DMA edition, SI girlies rise 💅✨

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👑 SEE ALSO 👑

Kernel file ./drivers/gpu/drm/amd/amdgpu/si_dma.c — go peek, iykyk 👀

• si_dma_ring_get_rptr(9)
• si_dma_ring_get_wptr(9)
• si_dma_ring_emit_fence(9)
• si_dma_ring_test_ring(9)
• si_dma_ring_test_ib(9)
• si_dma_vm_copy_pte(9)
• si_dma_vm_set_pte_pde(9)
• si_dma_ring_pad_ib(9)
• si_dma_ring_emit_pipeline_sync(9)
• si_dma_ring_emit_vm_flush(9)
• si_dma_emit_copy_buffer(9)
• si_dma_emit_fill_buffer(9)

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mwah 💖 this iconic little page comes from ./drivers/gpu/drm/amd/amdgpu and is dated October 2026 — periodt, go write those PTEs manually bestie 💅🌈✨