si_dma_vm_set_pages(9)

💅 si_dma_vm_set_pages(9) — like, the Kernel API Manual page you actually wanna read 🎀

okay so bestie, welcome to the si_dma_vm_set_pages(9) glow-up ✨ this one lives in the Kernel API Manual and it's short but she's important, so pay attention 💖

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✨ NAME ✨

si_dma_vm_set_pages — update the page tables using the DMA 🦋

like yes, that's the whole vibe: page tables get updated, and the DMA is the one doing it 💅

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✨ SYNOPSIS ✨

void si_dma_vm_set_pages (struct radeon_device *rdev , struct radeon_ib
*ib , uint64_t pe , uint64_t addr , unsigned count , uint32_t incr ,
uint32_t flags );

no cap, that's the exact signature — void return, six args, all of them matter 🙈

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✨ ARGUMENTS ✨

• rdev — radeon_device pointer 🫶 (the device, obvs)
• ib — indirect buffer to fill with commands 🎀 (this is the thing you're stuffing commands into)
• pe — addr of the page entry ⭐
• addr — dst addr to write into pe 💜 (the destination you're writing into that page entry)
• count — number of page entries to update 🌸 (how many, bestie)
• incr — increase next addr by incr bytes 🦋 (the next address steps up by this many bytes)
• flags — access flags 🔥 (access perms, iykyk)

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✨ DESCRIPTION ✨

Update the page tables using the DMA (SI). 💅

that's it, that's the whole thing — she's a do-one-thing-well icon and we respect her for it 👑

lowkey a reminder: it's the SI path specifically, and the DMA is what's doing the page table updating ✨

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✨ SEE ALSO ✨

go check out her friends, fr fr 🌈

• Kernel file ./drivers/gpu/drm/radeon/si_dma.c
• si_dma_is_lockup(9)
• si_dma_vm_copy_pages(9)
• si_dma_vm_write_pages(9)
• si_copy_dma(9)

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and that's the page, bestie 🧚💖 sign-off time: this cutie comes from ./drivers/gpu/drm/radeon and her date stamp is October 2026 — si_dma_vm_set_pages(9), periodt 💅🎀