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Re: [RFC] Add 4KSx support (try 2)

To: Franck <>
Subject: Re: [RFC] Add 4KSx support (try 2)
From: "Kevin D. Kissell" <>
Date: Mon, 31 Oct 2005 18:45:48 +0100
Cc:, Ralf Baechle <>, "Maciej W. Rozycki" <>
In-reply-to: <>
Original-recipient: rfc822;
References: <> <> <>
User-agent: Mozilla Thunderbird 1.0.6 (X11/20050716)
Franck wrote:

There are places, for example arch/mips/mm/cache.c, but
also some of the other makefiles, where you're using your
new config flags to drive things where the standard
CONFIG_CPU_MIPS32 (which I guess has now fragmented into
CONFIG_CPU_MIPS32_R1 and CONFIG_CPU_MIPS32_R2, which would
apply to the Sc and Sd respectively) would do the right thing
while creating fewer source file mods.

That's correct but CONFIG_CPU_MIPS32_Rx seems to be a fallback case.
Don't other cpu use their own flags whereas they could just use
CONFIG_CPU_MIPS32_Rx flag instead ?

I think that those other CPUs aren't, strictly speaking,
MIPS32-compliant CPUs in one respect or another, so they
end up picking up MIPS32 kernel behavior "a la carte".
The 4KS family is a strict superset.


        Kevin K.

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