Messages in this thread | | | Date | Wed, 25 Mar 2020 09:55:24 +0100 | From | Fredrik Noring <> | Subject | Re: [PATCH 1/6] MIPS: remove cpu_has_64bit_gp_regs and cpu_has_64bit_addresses |
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> The only use of cpu_has_64bit_addresses is the choice of the ioremap > code base. Which ioremap code does the R5900 want to use? If it > doesn't match CONFIG_64BIT having a config option for the ioremap > implementation seems much more sensible, and can be added with the > R5900 patch set (do you have a link to it?).
I suppose this would be relevant for the n32 ABI, but initially we only have o32 for the R5900. The (slightly outdated) patch series under review is available here:
https://lore.kernel.org/linux-mips/cover.1567326213.git.noring@nocrew.org/T/
Regarding cpu_has_64bit_gp_regs: another unusual aspect of the R5900 is its 128-bit GPRs. :)
Fredrik
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