| Date | Thu, 12 Oct 2023 17:34:56 +0200 | From | Thomas Bogendoerfer <> | Subject | Re: [PATCH 02/11] MIPS: use virtual addresses from xkphys for MIPS64 |
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On Wed, Oct 04, 2023 at 06:10:29PM +0200, Gregory CLEMENT wrote: > From: Vladimir Kondratiev <vladimir.kondratiev@intel.com> > > Now 64-bit MIPS uses 32-bit compatible segments KSEG0 and KSEG1 > to trivially map first 1/2 GByte of physical memory. This memory > used to run kernel. This mean, one should have memory installed > in this area in order for Linux to work. > > Kconfig CONFIG_USE_XKPHYS introduced; it adds support for kernel > to use virtual addresses from the XKPHYS segment for both cached > and uncached access. XKPHYS allows to access 2^48 bytes of > memory, thus allowing kernel to work with any memory > configuration.
IMHO it doesn't make sense to introduce an option for a generic kernel, which then renders the generic kernel useless on all platforms other then yours.
Please don't use generic, but setup a new platform for it. Hopefully we can get rid all of the weirdness in this patch.
Thomas.
-- Crap can work. Given enough thrust pigs will fly, but it's not necessarily a good idea. [ RFC1925, 2.3 ]
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