cxl_endpoint_decoder_alloc(9)

💅 cxl_endpoint_decoder_alloc 💅

okay bestie so we're in the Kernel API Manual and the function we're stanning today is cxl_endpoint_decoder_alloc — it's literally the glow-up step where an endpoint decoder gets allocated ✨ like, before it's a real registered decoder it's just a baby in the allocator, and that's this function's whole job 🎀

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🌸 SYNOPSIS 🌸

struct cxl_endpoint_decoder * cxl_endpoint_decoder_alloc (struct cxl_port *port );

no cap, that's the whole signature 🫶

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✨ ARGUMENTS ✨

• port — the owning port of this decoder, aka the main character whose decoder this is 💅

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🦋 RETURN 🦋

you get back a shiny new cxl decoder, and the plan is that it gets registered by cxl_decoder_add 🌈 (yes queen, alloc then add, that's the pipeline 🔥)

lowkey important: this is the to-be-registered era, so don't think it's already wired up — cxl_decoder_add comes later, fr fr.

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👑 SEE ALSO 👑

like a whole friend group of related calls, and you're gonna want the receipts:

• Kernel file ./drivers/cxl/core/port.c
• cxl core(9)
• devm_cxl_add_port(9)
• devm_cxl_add_dport(9)
• devm_cxl_add_rch_dport(9)
• cxl_add_ep(9)
• find_cxl_port_by_dport(9)
• find_cxl_port_by_uport(9)
• cxl_decoder_init(9)
• cxl_root_decoder_alloc(9)
• cxl_switch_decoder_alloc(9)
• cxl_decoder_add_locked(9)
• cxl_decoder_add(9)
• __cxl_driver_register(9)
• cxl_endpoint_get_perf_coordinates(9)

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💖 okay that's the whole page bestie, go forth and allocate 💖

and for the cute sign-off 🎀: this one lives in ./drivers/cxl/core, dated October 2026, from the Kernel API Manual — iconic, periodt ⭐