在2023年11月28日十一月 上午11:34，Serge Semin写道： > On Mon, Nov 27, 2023 at 09:08:11PM +0000, Jiaxun Yang wrote: [...] > > Indeed. Thanks for pointing that out. In the last days several times I > was looking at that line and for some reason UNCAC_BASE seemed as > CAC_BASE to me.) Based on what both IO_BASE and UNCAC_BASE are defined > as of the uncached region anyway, then it should be safe for any > currently supported MIPS64 (including the Loongson's) to use ioremap() > in place of dmi_early_remap(). So basically my current patch in the > subject won't change the method semantics. Let's not to try to fix a > problem which doesn't exist then, and keep the patch as is especially > seeing that the alternatives might still cause some troubles. Will you > be ok with that? I'd say the safest option is to use CKSEG0 or TO_CAC here, but I'm fine with ioremap as long as the semantic remains uncached on Loongson. Thanks. > > -Serge(y) > >> [...] -- - Jiaxun
