CONFIG_ARCH_IOREMAP is not available for thedefaultarchitecture x86.
Result is shown for architecture loongarch
Enable LoongArch DMW-based ioremap()
configname: CONFIG_ARCH_IOREMAP
Linux Kernel Configuration
└─>Kernel type and options
└─>Enable LoongArch DMW-based ioremap()
In linux kernel since version 6.1 (release Date: 2022-12-11)
We use generic TLB-based ioremap() by default since it has page
protection support. However, you can enable LoongArch DMW-based
ioremap() for better performance.
protection support. However, you can enable LoongArch DMW-based
ioremap() for better performance.