cayman_dma_stop(9)

💅 cayman_dma_stop(9) — stop the async dma engines, bestie

Okay so we're diving into the cayman_dma_stop manual page, which lives in the Kernel API Manual. It's giving kernel-level realness, and honestly? We're obsessed. Let's get into it ✨

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🎀 NAME 🎀

cayman_dma_stop — stop the async dma engines 💖

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🌸 SYNOPSIS 🌸

void cayman_dma_stop (struct radeon_device *rdev );

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🦋 ARGUMENTS 🦋

• rdev — radeon_device pointer, aka your main character pointer, no cap 🫶

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✨ DESCRIPTION ✨

So basically this bad boy stops the async dma engines — and yes, that's specifically for the cayman-SI era of things. It's lowkey doing the lord's work: hitting the brakes on the async DMA engines so they're not out here running wild. The way that it just... stops them. Periodt. 💅🔥

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👑 SEE ALSO 👑

Like, go check out the kernel file ./drivers/gpu/drm/radeon/ni_dma.c for the full backstory, and then also these iconic siblings in the same family — collect the whole set, iykyk:

• cayman_dma_get_rptr(9)
• cayman_dma_get_wptr(9)
• cayman_dma_set_wptr(9)
• cayman_dma_ring_ib_execute(9)
• cayman_dma_resume(9)
• cayman_dma_fini(9)
• cayman_dma_is_lockup(9)
• cayman_dma_vm_copy_pages(9)
• cayman_dma_vm_write_pages(9)
• cayman_dma_vm_set_pages(9)
• cayman_dma_vm_pad_ib(9)

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And that's the whole vibe, bestie! 🧚 This little gem comes to you straight from ./drivers/gpu/drm/radeon, stamped October 2026 — catch you in the kernel source, mwah 💋💖