How can I update devm_ioremap_nocache based kernel module Asked 10 months ago Modified 10 months ago Viewed 417 times
Are there any other good reasons to mark memory as non-cacheable? P.S. seems that marking memory as non-cacheable from user-space can be done through mmap() with MAP_NOCACHE flag, isn't it? UPD From wiki: Marking some memory ranges as non-cacheable can improve performance, by avoiding caching of memory regions that are rarely re-accessed.
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