evergreen_dma_is_lockup(9)

💅 evergreen_dma_is_lockup(9) — the kernel API manual, bestie edition 💅

okay so this is evergreen_dma_is_lockup, a real one from the kernel API manual, and we're gonna get into it together. no cap, it's a little function with one job, and it eats. ✨

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🌸 NAME 🌸

evergreen_dma_is_lockup — literally just checking if the DMA engine is locked up, bestie. that's the whole vibe check. 💅

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🦋 SYNOPSIS 🦋

bool evergreen_dma_is_lockup (struct radeon_device *rdev , struct
radeon_ring *ring );

like, yes, that's the exact signature, keep it cute and keep it exact. 🎀

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✨ ARGUMENTS ✨

• rdev — a radeon_device pointer, aka your little handle on the radeon device. 🫶
• ring — a radeon_ring structure holding ring information. she's holding the ring info, periodt. 💍

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🔥 DESCRIPTION 🔥

so what this function does is check if the async DMA engine is locked up. that's it, that's the main character energy. 👑

it returns true if the engine appears to be locked up, and false if not. no in-between, no maybes, just a good old boolean. ngl, very straightforward. 💖

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpu/drm/radeon/evergreen_dma.c — the source file, iykyk. 📁
• evergreen_dma_fence_ring_emit(9) — another one, go look. ⭐
• evergreen_dma_ring_ib_execute(9) — yes bestie, also relevant. 💜
• evergreen_copy_dma(9) — the copy DMA friend, slay. 🧚

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and that's the page!! mwah 💋 this little manual situation lives in ./drivers/gpu/drm/radeon, dated October 2026, and honestly? iconic. 🎀✨💖