xilinx_dpdma_chan_vsync_irq(9)

✨ NAME ✨

xilinx_dpdma_chan_vsync_irq — handle hardware descriptor scheduling. This is the xilinx_dpdma_chan_vsync_irq(9) page from the Kernel API Manual, and yes bestie, it’s giving main character energy for descriptor scheduling 💅✨.

🌸 SYNOPSIS 🌸

void xilinx_dpdma_chan_vsync_irq (struct xilinx_dpdma_chan *chan );

🦋 ARGUMENTS 🦋

• chan — DPDMA channel. That’s the iconic channel we’re doing all this for, no cap 🫶.

🔥 DESCRIPTION 🔥

Okay so at VSYNC, the active descriptor may have been replaced by the pending descriptor 😭. Detect this through DESC_ID and perform appropriate bookkeeping. That’s literally the vibe check here — active descriptor, pending descriptor, DESC_ID, bookkeeping, slay 🎀. Periodt, fr fr 👑.

👑 SEE ALSO 👑

Kernel file plus these cross-reference besties, all linked up — iykyk 🌈:

• ./drivers/dma/xilinx/xilinx_dpdma.c — kernel file 📁
• struct xilinx_dpdma_hw_desc(9)
• struct xilinx_dpdma_sw_desc(9)
• struct xilinx_dpdma_tx_desc(9)
• struct xilinx_dpdma_chan(9)
• struct xilinx_dpdma_device(9)
• xilinx_dpdma_sw_desc_set_dma_addrs(9)
• xilinx_dpdma_chan_alloc_sw_desc(9)
• xilinx_dpdma_chan_free_sw_desc(9)
• xilinx_dpdma_chan_dump_tx_desc(9)
• xilinx_dpdma_chan_alloc_tx_desc(9)
• xilinx_dpdma_chan_free_tx_desc(9)
• xilinx_dpdma_chan_prep_cyclic(9)
• xilinx_dpdma_chan_prep_interleaved_dma(9)
• xilinx_dpdma_chan_enable(9)
• xilinx_dpdma_chan_disable(9)
• xilinx_dpdma_chan_pause(9)
• xilinx_dpdma_chan_unpause(9)
• xilinx_dpdma_chan_queue_transfer(9)
• xilinx_dpdma_chan_ostand(9)
• xilinx_dpdma_chan_notify_no_ostand(9)
• xilinx_dpdma_chan_wait_no_ostand(9)
• xilinx_dpdma_chan_poll_no_ostand(9)
• xilinx_dpdma_chan_stop(9)
• xilinx_dpdma_chan_done_irq(9)
• xilinx_dpdma_chan_err(9)
• xilinx_dpdma_chan_handle_err(9)
• xilinx_dpdma_alloc_chan_resources(9)
• xilinx_dpdma_free_chan_resources(9)
• xilinx_dpdma_terminate_all(9)
• xilinx_dpdma_synchronize(9)
• xilinx_dpdma_err(9)
• xilinx_dpdma_handle_err_irq(9)
• xilinx_dpdma_enable_irq(9)
• xilinx_dpdma_disable_irq(9)
• xilinx_dpdma_chan_err_task(9)

Source/version check, bestie: ./drivers/dma/xilinx · October 2026 · page xilinx_dpdma_chan_vsync_irq(9) 🦋💖. Okay bye, go do that hardware descriptor scheduling — it ate, periodt ✨👑.