xilinx_dma_f...an_resources(9)

💖 NAME 💖

xilinx_dma_free_chan_resources — bestie, this one frees your channel resources ✨ (yes, that's the whole vibe: free channel resources, no cap)

This lil page comes to you straight from the Kernel API Manual, and the function is serving full xilinx_dma_free_chan_resources(9) energy 💅

---

🌸 SYNOPSIS 🌸

Okay so here's the whole signature, and it's literally one line:

void xilinx_dma_free_chan_resources (struct dma_chan *dchan );

She returns void — nothing comes back, she's just doing the work and leaving 🫶

---

🎀 ARGUMENTS 🎀

• dchan — the DMA channel 💫 that's it, that's the one and only thing you hand her.

---

🦋 SEE ALSO 🦋

The whole squad, ok? Like the entire friend group is tagged in this post. Nobody gets left out 🙈

• The kernel file it all lives in: ./drivers/dma/xilinx/xilinx_dma.c 🔥
• The hardware descriptor structs: struct xilinx_vdma_desc_hw(9), struct xilinx_axidma_desc_hw(9), struct xilinx_aximcdma_desc_hw(9), struct xilinx_cdma_desc_hw(9)
• The tx segment structs: struct xilinx_vdma_tx_segment(9), struct xilinx_axidma_tx_segment(9), struct xilinx_aximcdma_tx_segment(9), struct xilinx_cdma_tx_segment(9)
• The big-picture structs: struct xilinx_dma_tx_descriptor(9), struct xilinx_dma_chan(9), enum xdma_ip_type(9), struct xilinx_dma_device(9)
• Descriptor-writing & metadata besties: vdma_desc_write_64(9), xilinx_dma_get_metadata_ptr(9)
• The segment allocators: xilinx_vdma_alloc_tx_segment(9), xilinx_cdma_alloc_tx_segment(9), xilinx_axidma_alloc_tx_segment(9), xilinx_aximcdma_alloc_tx_segment(9)
• The segment freers: xilinx_dma_free_tx_segment(9), xilinx_mcdma_free_tx_segment(9), xilinx_cdma_free_tx_segment(9), xilinx_vdma_free_tx_segment(9)
• Descriptor lifecycle crew: xilinx_dma_alloc_tx_descriptor(9), xilinx_dma_free_tx_descriptor(9), xilinx_dma_free_desc_list(9), xilinx_dma_free_descriptors(9)
• Residue, cleanup & tasklet girlies: xilinx_dma_get_residue(9), xilinx_dma_chan_handle_cyclic(9), xilinx_dma_chan_desc_cleanup(9), xilinx_dma_do_tasklet(9)
• The other half of this one: xilinx_dma_alloc_chan_resources(9) 👑
• Sizing & status: xilinx_dma_calc_copysize(9), xilinx_dma_tx_status(9)
• Stop transfer squad: xilinx_dma_stop_transfer(9), xilinx_cdma_stop_transfer(9)
• Start & start-transfer crew: xilinx_dma_start(9), xilinx_vdma_start_transfer(9), xilinx_cdma_start_transfer(9), xilinx_dma_start_transfer(9), xilinx_mcdma_start_transfer(9)
• Issuing & configuring: xilinx_dma_issue_pending(9), xilinx_dma_device_config(9)
• Completion & resets: xilinx_dma_complete_descriptor(9), xilinx_dma_reset(9), xilinx_dma_chan_reset(9)
• IRQ handlers: xilinx_mcdma_irq_handler(9), xilinx_dma_irq_handler(9)
• Queueing & submitting: append_desc_queue(9), xilinx_dma_tx_submit(9)
• Prep functions for days: xilinx_vdma_dma_prep_interleaved(9), xilinx_cdma_prep_memcpy(9), xilinx_dma_prep_peripheral_dma_vec(9), xilinx_dma_prep_slave_sg(9), xilinx_dma_prep_dma_cyclic(9), xilinx_mcdma_prep_slave_sg(9)
• Terminate & channel config: xilinx_dma_terminate_all(9), xilinx_vdma_channel_set_config(9)
• Probe/remove & friends: xilinx_dma_chan_remove(9), xilinx_dma_chan_probe(9), xilinx_dma_child_probe(9), of_dma_xilinx_xlate(9), xilinx_dma_probe(9), xilinx_dma_remove(9)

---

ngl bestie, this page is short but she's iconic — one function, one arg, one job. Periodt. 💅

---

okay that's the whole page!! this lil masterpiece lives in ./drivers/dma/xilinx, it's stamped October 2026, it's part of the Kernel API Manual, and its full govt name is xilinx_dma_free_chan_resources(9) 🎀✨ bye bestie, love u, go free those channel resources 💜🦋