ppc440spe_desc_set_src_addr(9)

✨ ppc440spe_desc_set_src_addr ✨

Okay bestie, we're in the Kernel API Manual today and this one's a tiny little legend: ppc440spe_desc_set_src_addr — the function whose whole job is setting the source address into the descriptor. That's the name, that's the assignment, no notes. 🎀

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🌸 NAME 🌸

ppc440spe_desc_set_src_addr — set source address into the descriptor, fr fr.

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💅 SYNOPSIS 💅

void ppc440spe_desc_set_src_addr (struct ppc440spe_adma_desc_slot *desc
, struct ppc440spe_adma_chan *chan , int src_idx , dma_addr_t addrh ,
dma_addr_t addrl );

She returns void, she takes five arguments, she is booked and busy. ✨

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🦋 ARGUMENTS 🦋

Okay so this is the part where the manpage simply did NOT do its homework 💀 — every single one of these is literally written as -- undescribed -- in the original. Not me making that up, that's genuinely what it says:

• desc — -- undescribed --
• chan — -- undescribed --
• src_idx — -- undescribed --
• addrh — -- undescribed --
• addrl — -- undescribed --

🫶 No cap, I'm not gonna guess what they do and make stuff up — that would be a fake-news moment. All five arguments show up, and all five are listed here as -- undescribed --. That's the whole tea. 🍵

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⭐ SEE ALSO ⭐

First up, the source of truth — kernel file ./drivers/dma/ppc4xx/adma.c. Go read the actual code, iykyk. 📖

And now the iconic part: the whole extended friend group 😭💖 Here's every single cross-reference, in the order the page gives them:

• ppc440spe_desc_init_interrupt(9), ppc440spe_desc_init_null_xor(9), ppc440spe_desc_init_xor(9), ppc440spe_desc_init_dma2pq(9), ppc440spe_desc_init_dma01pq(9), ppc440spe_desc_init_dma01pqzero_sum(9), ppc440spe_desc_init_memcpy(9), ppc440spe_desc_set_src_mult(9), ppc440spe_desc_set_dest_addr(9), ppc440spe_desc_set_byte_count(9), ppc440spe_desc_set_rxor_block_size(9), ppc440spe_desc_set_dcheck(9), ppc440spe_xor_set_link(9), ppc440spe_desc_set_link(9), ppc440spe_desc_get_link(9), ppc440spe_desc_is_aligned(9), ppc440spe_chan_xor_slot_count(9), ppc440spe_dma2_pq_slot_count(9), ppc440spe_adma_device_clear_eot_status(9), ppc440spe_chan_is_busy(9), ppc440spe_chan_set_first_xor_descriptor(9), ppc440spe_dma_put_desc(9), ppc440spe_chan_append(9), ppc440spe_chan_get_current_descriptor(9), ppc440spe_chan_run(9), ppc440spe_can_rxor(9), ppc440spe_get_group_entry(9), ppc440spe_adma_free_slots(9), ppc440spe_adma_run_tx_complete_actions(9), ppc440spe_adma_clean_slot(9), __ppc440spe_adma_slot_cleanup(9), ppc440spe_adma_tasklet(9), ppc440spe_adma_slot_cleanup(9), ppc440spe_adma_alloc_slots(9), ppc440spe_adma_alloc_chan_resources(9), ppc440spe_rxor_set_src(9), ppc440spe_rxor_set_mult(9), ppc440spe_adma_check_threshold(9), ppc440spe_adma_tx_submit(9), ppc440spe_adma_prep_dma_interrupt(9), ppc440spe_adma_prep_dma_memcpy(9), ppc440spe_adma_prep_dma_xor(9), ppc440spe_adma_init_dma2rxor_slot(9), ppc440spe_dma01_prep_mult(9), ppc440spe_dma01_prep_sum_product(9), ppc440spe_adma_prep_dma_pq(9), ppc440spe_adma_prep_dma_pqzero_sum(9), ppc440spe_adma_prep_dma_xor_zero_sum(9), ppc440spe_adma_set_dest(9), ppc440spe_adma_pq_set_dest(9), ppc440spe_desc_set_xor_src_cnt(9), ppc440spe_adma_pq_set_src(9), ppc440spe_adma_memcpy_xor_set_src(9), ppc440spe_adma_dma2rxor_inc_addr(9), ppc440spe_adma_dma2rxor_prep_src(9), ppc440spe_adma_dma2rxor_set_src(9), ppc440spe_adma_dma2rxor_set_mult(9), ppc440spe_init_rxor_cursor(9), ppc440spe_adma_pq_set_src_mult(9), ppc440spe_adma_free_chan_resources(9), ppc440spe_adma_tx_status(9), ppc440spe_adma_eot_handler(9), ppc440spe_adma_err_handler(9), ppc440spe_test_callback(9), ppc440spe_adma_issue_pending(9), ppc440spe_chan_start_null_xor(9), ppc440spe_test_raid6(9), ppc440spe_adma_probe(9), ppc440spe_adma_remove(9)

That's the roster. Seventy-plus manpages and one DMA driver file, and honestly? Slay. 👑🔥

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Big kiss, bye — this page lives in ./drivers/dma/ppc4xx, and it's dated October 2026, so yeah she's from the future and she's still -- undescribed --. Iconic behavior honestly. 💜🧚‍♀️⭐