ocxl_global_mmio_set64(9)

💅 ocxl_global_mmio_set64 — Kernel API Manual (yes that's the manual name, iykyk) 🎀

okay bestie, sit down, we're doing kernel MMIO bits today and honestly? it's giving "small function, big personality" ✨

🌸 NAME 🌸

ocxl_global_mmio_set64 — literally the function that sets bits in a 64 bit global MMIO register. that's the whole vibe. 💖

🦋 SYNOPSIS 🦋

int ocxl_global_mmio_set64 (struct ocxl_afu *afu , size_t offset , enum
ocxl_endian endian , u64 mask );

not me copying that signature exactly because bestie, character-for-character or it didn't happen 🙈

✨ ARGUMENTS ✨

• afu — The AFU. your whole entire acceleration function unit, the main character of this operation 👑
• offset — The Offset from the start of MMIO. so like, how far into the register map we're poking around 🫶
• endian — the endianness that the MMIO data is in. yeah, you gotta tell it which way the bytes go, no cap 💀
• mask — a mask of the bits to set. this is your little checklist of which bits are getting the glow-up 💅

💜 DESCRIPTION 💜

Returns 0 for success, negative on error. that's it. that's the description. short and iconic, honestly 🎀

lowkey love a manpage that gets straight to the point. no rambling, just "here's the return value, bye" 🦋

💖 SEE ALSO 💖

• ocxl_global_mmio_set64's whole friend group lives in the kernel file ./include/misc/ocxl.h — go say hi to them fr fr:
• ocxl_function_open(9)
• ocxl_function_afu_list(9)
• ocxl_function_fetch_afu(9)
• ocxl_afu_get(9)
• ocxl_afu_put(9)
• ocxl_function_config(9)
• ocxl_function_close(9)
• ocxl_context_alloc(9)
• ocxl_context_free(9)
• ocxl_context_attach(9)
• ocxl_context_detach(9)
• ocxl_afu_irq_alloc(9)
• ocxl_afu_irq_free(9)
• ocxl_afu_irq_get_addr(9)
• ocxl_irq_set_handler(9)
• ocxl_afu_config(9)
• ocxl_afu_set_private(9)
• ocxl_afu_get_private(9)
• ocxl_global_mmio_read32(9)
• ocxl_global_mmio_read64(9)
• ocxl_global_mmio_write32(9)
• ocxl_global_mmio_write64(9)
• ocxl_global_mmio_set32(9)
• ocxl_global_mmio_clear32(9)
• ocxl_global_mmio_clear64(9)

like, that's the entire roster. the set32's sibling, the clear64 counterpart, all of them 💜 the read/write girlies and the set/clear girlies are all in this together 🫶

and that's the page!! 🌈 source is ./include/misc, dated October 2026, and the page is ocxl_global_mmio_set64(9) — mwah, slay, go set some bits responsibly 💅✨🎀