devm_arch_phys_wc_add(9)

✨ NAME ✨

okay bestie, welcome to the devm_arch_phys_wc_add(9) page in the Kernel API Manual 💖

devm_arch_phys_wc_add — managed arch_phys_wc_add() 🫶

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🌸 SYNOPSIS 🌸

int devm_arch_phys_wc_add (struct device *dev , unsigned long base ,
       unsigned long size );

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🎀 ARGUMENTS 🎀

• dev — the managed device, aka the main character holding the resource energy 💅
• base — memory base address, the starting point of the whole situation 📍
• size — size of the memory range, like how much of the map we're covering 💖

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💜 DESCRIPTION 💜

So this one adds a WC MTRR using arch_phys_wc_add, and it sets up a release callback too — very managed, very responsible ✨

For the full lore and extra details, go see arch_phys_wc_add, bestie 🫶

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🦋 SEE ALSO 🦋

Kernel file ./lib/devres.c is right here, and these related functions are also invited to the group chat 💬

• devm_ioremap(9)
• devm_ioremap_uc(9)
• devm_ioremap_wc(9)
• devm_iounmap(9)
• devm_ioremap_resource(9)
• devm_ioremap_resource_wc(9)
• devm_ioport_map(9)
• devm_ioport_unmap(9)
• devm_arch_io_reserve_memtype_wc(9)

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mwah 💋 this one came from ./lib, dated October 2026, and it's still the devm_arch_phys_wc_add(9) page — byeee 🦋