ppc440spe_c...t_descriptor(9)

💜 ppc440spe_chan_get_current_descriptor — the Kernel API Manual moment 🎀

okay so bestie, welcome to the Kernel API Manual, and today's main character is ppc440spe_chan_get_current_descriptor, no cap. it's giving "tiny function, huge name" energy and honestly? we stan.

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✨ NAME ✨

ppc440spe_chan_get_current_descriptor — literally just get the currently executed descriptor. that's it. that's the whole vibe. 🦋

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🌸 SYNOPSIS 🌸

u32 ppc440spe_chan_get_current_descriptor (struct ppc440spe_adma_chan
*chan );

lowkey look at that return type — u32, a whole number, coming back at you. highkey iconic.

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🎀 ARGUMENTS 🎀

• chan — -- undescribed -- 😭

ngl the docs really just said "undescribed" and dipped. not me refreshing the page expecting more. fr fr that's all the upstream gave us, so that's all we're passing along — no inventing lore, periodt.

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🔥 SEE ALSO 🔥

the group chat is huge, bestie. like, everyone showed up to this party:

• Kernel file ./drivers/dma/ppc4xx/adma.c
• 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_addr(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_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)

like i said. everyone. 👑

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ok but seriously bestie — this page is short because the upstream page is short. don't go assuming extra behavior, we're just vibing with what's written 💅

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and that's the whole thing! mwah 💖 this little page lives under ./drivers/dma/ppc4xx, dated October 2026, and it's the ppc440spe_c...t_descriptor(9) entry from the Kernel API Manual. ily, go read the source 🫶✨