r600_dma_resume(9)

🎀 NAME 🎀

okay bestie, welcome to r600_dma_resume(9) from the Kernel API Manual 💖 — this one is literally all about setup and start the async dma engine. That's the whole name-and-job situation, no cap.

✨ SYNOPSIS ✨

int r600_dma_resume (struct radeon_device *rdev );

🫶 ARGUMENTS 🫶

• rdev — a radeon_device pointer. That's the whole argument, bestie 🫶.

💅 DESCRIPTION 💅

okay so this function sets up the DMA ring buffer and enables it (r6xx-evergreen) ✨. It's giving “get the ring buffer ready and turn it on,” and that's the tea.

It returns 0 for success, and an error for failure 😭. So check that return value, bestie — 0 is the slay, error is the “not me getting a failure” vibe.

🌈 SEE ALSO 🌈

Kernel file: ./drivers/gpu/drm/radeon/r600_dma.c

Also peep these besties 👀:

• r600_dma_get_rptr(9)
• r600_dma_get_wptr(9)
• r600_dma_set_wptr(9)
• r600_dma_stop(9)
• r600_dma_fini(9)
• r600_dma_is_lockup(9)
• r600_dma_ring_test(9)
• r600_dma_fence_ring_emit(9)
• r600_dma_semaphore_ring_emit(9)
• r600_dma_ib_test(9)
• r600_dma_ring_ib_execute(9)
• r600_copy_dma(9)

catch u later 🎀 — this r600_dma_resume(9) page is from the Kernel API Manual, source ./drivers/gpu/drm/radeon, dated October 2026 💖