On Thu, Mar 4, 2021 at 11:40 PM Hector Martin <marcan@xxxxxxxxx> wrote: > > ARM64 currently defaults to posted MMIO (nGnRnE), but some devices > require the use of non-posted MMIO (nGnRE). Introduce a new ioremap() > variant to handle this case. ioremap_np() is aliased to ioremap() by > default on arches that do not implement this variant. Hmm... But isn't it basically a requirement to those device drivers to use readX()/writeX() instead of readX_relaxed() / writeX_relaxed()? ... > #define IORESOURCE_MEM_32BIT (3<<3) > #define IORESOURCE_MEM_SHADOWABLE (1<<5) /* dup: IORESOURCE_SHADOWABLE */ > #define IORESOURCE_MEM_EXPANSIONROM (1<<6) > +#define IORESOURCE_MEM_NONPOSTED (1<<7) Not sure it's the right location (in a bit field) for this flag. -- With Best Regards, Andy Shevchenko
