xilinx_dma_chan_reset(9)

💅 xilinx_dma_chan_reset(9) — from the Kernel API Manual, bestie ✨

okay so picture this: you're deep in the kernel, in the Xilinx DMA corner of the world (./drivers/dma/xilinx, ily), and you just need your DMA channel to chill. That's this function. It's giving "factory reset but for hardware." 🌸

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✨ NAME ✨

xilinx_dma_chan_reset — reset the DMA channel and enable interrupts. literally that's the whole gig 🎀

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🦋 SYNOPSIS 🦋

int xilinx_dma_chan_reset (struct xilinx_dma_chan *chan );

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💖 ARGUMENTS 💖

• chan — the driver-specific DMA channel. like, your channel. the one you're resetting. be normal about it 🫶

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🔥 RETURN 🔥

okay so the manpage literally has nothing here — the section exists but it's empty, no documented return values at all. so don't come for me, I'm telling you exactly what it says (which is: nothing) 💀

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👑 SEE ALSO 👑

the kernel file lives at ./drivers/dma/xilinx/xilinx_dma.c, and here's the whole extended friend group — all 63 of them, no cap:

• struct xilinx_vdma_desc_hw(9)
• struct xilinx_axidma_desc_hw(9)
• struct xilinx_aximcdma_desc_hw(9)
• struct xilinx_cdma_desc_hw(9)
• struct xilinx_vdma_tx_segment(9)
• struct xilinx_axidma_tx_segment(9)
• struct xilinx_aximcdma_tx_segment(9)
• struct xilinx_cdma_tx_segment(9)
• struct xilinx_dma_tx_descriptor(9)
• struct xilinx_dma_chan(9)
• enum xdma_ip_type(9)
• struct xilinx_dma_device(9)
• vdma_desc_write_64(9)
• xilinx_dma_get_metadata_ptr(9)
• xilinx_vdma_alloc_tx_segment(9)
• xilinx_cdma_alloc_tx_segment(9)
• xilinx_axidma_alloc_tx_segment(9)
• xilinx_aximcdma_alloc_tx_segment(9)
• xilinx_dma_free_tx_segment(9)
• xilinx_mcdma_free_tx_segment(9)
• xilinx_cdma_free_tx_segment(9)
• xilinx_vdma_free_tx_segment(9)
• xilinx_dma_alloc_tx_descriptor(9)
• xilinx_dma_free_tx_descriptor(9)
• xilinx_dma_free_desc_list(9)
• xilinx_dma_free_descriptors(9)
• xilinx_dma_free_chan_resources(9)
• xilinx_dma_get_residue(9)
• xilinx_dma_chan_handle_cyclic(9)
• xilinx_dma_chan_desc_cleanup(9)
• xilinx_dma_do_tasklet(9)
• xilinx_dma_alloc_chan_resources(9)
• xilinx_dma_calc_copysize(9)
• xilinx_dma_tx_status(9)
• xilinx_dma_stop_transfer(9)
• xilinx_cdma_stop_transfer(9)
• xilinx_dma_start(9)
• xilinx_vdma_start_transfer(9)
• xilinx_cdma_start_transfer(9)
• xilinx_dma_start_transfer(9)
• xilinx_mcdma_start_transfer(9)
• xilinx_dma_issue_pending(9)
• xilinx_dma_device_config(9)
• xilinx_dma_complete_descriptor(9)
• xilinx_dma_reset(9)
• xilinx_mcdma_irq_handler(9)
• xilinx_dma_irq_handler(9)
• append_desc_queue(9)
• xilinx_dma_tx_submit(9)
• 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)
• xilinx_dma_terminate_all(9)
• xilinx_vdma_channel_set_config(9)
• 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)

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💀 heads up bestie: this page is very short on facts — short synopsis, one argument, and a RETURN section with absolutely nothing in it. That's not me being lazy, that's the source material being mysterious and iconic. iykyk.

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later bestie — this gem dropped out of ./drivers/dma/xilinx, dated October 2026, and it's signed xilinx_dma_chan_reset(9) on the way out. mwah 💜✨