msgdma_irq_handler(9)

✨ msgdma_irq_handler(9) ✨

okay so bestie, welcome to the Kernel API Manual — this is the page for msgdma_irq_handler, aka the Altera mSGDMA Interrupt handler. yes it's a mouthful, yes it's iconic, let's go 🎀

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🌸 NAME 🌸

msgdma_irq_handler — Altera mSGDMA Interrupt handler 💅

like literally that's the whole gig. it handles the interrupt. she's the main character of the IRQ line.

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🦋 SYNOPSIS 🦋

irqreturn_t msgdma_irq_handler (int irq , void *data );

that's the whole vibe. two args, one return type, no cap.

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🎀 ARGUMENTS 🎀

• irq — the IRQ number, bestie. that's it. that's the number of the interrupt. 🔥
• data — a pointer to the Altera mSGDMA device structure 🫶 like, the actual device she's working with.

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⭐ RETURN ⭐

IRQ_HANDLED/IRQ_NONE — either she handled it, or she didn't. binary queen. 💀 no in-between, no "sort of", no "it's complicated".

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💜 SEE ALSO 💜

Kernel file ./drivers/dma/altera-msgdma.c struct msgdma_extended_desc(9), struct msgdma_sw_desc(9), msgdma_get_descriptor(9), msgdma_free_descriptor(9), msgdma_free_desc_list(9), msgdma_desc_config(9), msgdma_desc_config_eod(9), msgdma_tx_submit(9), msgdma_prep_memcpy(9), msgdma_prep_slave_sg(9), msgdma_copy_desc_to_fifo(9), msgdma_start_transfer(9), msgdma_issue_pending(9), msgdma_chan_desc_cleanup(9), msgdma_complete_descriptor(9), msgdma_free_descriptors(9), msgdma_free_chan_resources(9), msgdma_alloc_chan_resources(9), msgdma_tasklet(9), msgdma_dev_remove(9), msgdma_probe(9), msgdma_remove(9)

like she has so many friends, the whole friend group fr fr 🧚✨ go read them all, iykyk.

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ok that's the page!! go forth and handle ur interrupts 💖

🌈 that's a wrap, babe — this little love letter lives in ./drivers/dma, dated October 2026, and it's brought to you by msgdma_irq_handler(9). slay, stay hydrated, and may all ur IRQs return IRQ_HANDLED 🍓👑