xilinx_dpdma...free_sw_desc(9)

💅 xilinx_dpdma...free_sw_desc(9) 💅

okay bestie, welcome to the Kernel API Manual — yes that's the whole manual name, we're fancy like that — and today's main character is xilinx_dpdma_chan_free_sw_desc. literally a whole function. let's go 🎀

---

✨ NAME ✨

xilinx_dpdma_chan_free_sw_desc — bestie, it frees a software descriptor. that's the whole vibe. 🦋

---

🌸 SYNOPSIS 🌸

void xilinx_dpdma_chan_free_sw_desc (struct xilinx_dpdma_chan *chan ,
struct xilinx_dpdma_sw_desc *sw_desc );

like, it returns void, so don't go looking for a return value, there isn't one, periodt 💅

---

🎀 ARGUMENTS 🎀

• chan — the DPDMA channel. your channel. the one you're working with. 💖
• sw_desc — the software descriptor to free. hand it over so it can go be free ✨

---

🔥 DESCRIPTION 🔥

so what this does is it frees a software descriptor from the channel's descriptor pool. that's it. that's the function. it's giving "small but essential" and honestly? we respect it 🫶

ngl this is the cleanup friend of the group — somebody has to do it, and it's doing it 💀

---

🌈 SEE ALSO 🌈

the whole squad, no cap. here's everyone in the group chat:

kernel file ./drivers/dma/xilinx/xilinx_dpdma.c

• 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_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_vsync_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)

like. that's a LOT of friends. iykyk 👑

---

and that's the page, bestie!! 💜 this one came from ./drivers/dma/xilinx and it's dated October 2026 — and yeah the header/footer both go by xilinx_dpdma...free_sw_desc(9), so we said it, we slayed it, we're done. mwah 🍓🧚‍♀️