set_dout_no_dma(9)

💅 set_dout_no_dma — Kernel API Manual ✨

okay so bestie, welcome to set_dout_no_dma from the Kernel API Manual — yes that's the manual name, we're fancy now 🎀 — and honestly this little function is a whole mood.

🌸 NAME 🌸

set_dout_no_dma — sets the DOUT field of a HW descriptor to NO DMA mode. It's the go-to for a NOP descriptor, for register patches, and for all those other special modes that don't fit the normal flow. lowkey iconic 💅

✨ SYNOPSIS ✨

void set_dout_no_dma (struct cc_hw_desc *pdesc , u32 addr , u32 size ,
bool write_enable );

that's the whole signature, no cap. returns void — she doesn't return anything, she just does 🫶

🦋 ARGUMENTS 🦋

• pdesc — a pointer to the HW descriptor struct. like, the actual descriptor you're editing. pointer to it. 💖
• addr — the DOUT address. yes, the address, that's the one 🎀
• size — the data size, measured in bytes (bytes!! not bits, bestie, keep up 😭)
• write_enable — a bool, and when it's on it enables a write operation to a register ✨

🔥 SEE ALSO 🔥

okay this list is giving main character energy — it's the whole squad from the kernel file ./drivers/crypto/ccree/cc_hw_queue_defs.h, and you literally cannot skip a single one of them 👑

• hw_desc_init(9)
• set_queue_last_ind_bit(9)
• set_din_type(9)
• set_din_no_dma(9)
• set_cpp_crypto_key(9)
• set_din_sram(9)
• set_din_const(9)
• set_din_not_last_indication(9)
• set_dout_type(9)
• set_dout_dlli(9)
• set_dout_mlli(9)
• set_xor_val(9)
• set_xor_active(9)
• set_aes_not_hash_mode(9)
• set_aes_xor_crypto_key(9)
• set_dout_sram(9)
• set_xex_data_unit_size(9)
• set_multi2_num_rounds(9)
• set_flow_mode(9)
• set_cipher_mode(9)
• set_hash_cipher_mode(9)
• set_cipher_config0(9)
• set_cipher_config1(9)
• set_hw_crypto_key(9)
• set_bytes_swap(9)
• set_cmac_size0_mode(9)
• set_key_size(9)
• set_key_size_aes(9)
• set_key_size_des(9)
• set_setup_mode(9)
• set_cipher_do(9)

and that's the whole page, bestie, you ate that 🍓 go forth and set those DOUT fields to NO DMA 💜

sign-off time 🧚 this page lives in ./drivers/crypto/ccree, dated October 2026, and it's all about set_dout_no_dma(9) — periodt. 🌈⭐