From: Michael Ellerman <patch-notifications@ellerman.id.au>
To: Michael Ellerman <mpe@ellerman.id.au>, linuxppc-dev@lists.ozlabs.org
Cc: ndesaulniers@google.com
Subject: Re: [PATCH] powerpc/dcr: Use cmplwi instead of 3-argument cmpli
Date: Tue, 02 Nov 2021 21:12:04 +1100 [thread overview]
Message-ID: <163584792457.1845480.16320937670703968873.b4-ty@ellerman.id.au> (raw)
In-Reply-To: <20211014024424.528848-1-mpe@ellerman.id.au>
On Thu, 14 Oct 2021 13:44:24 +1100, Michael Ellerman wrote:
> In dcr-low.S we use cmpli with three arguments, instead of four
> arguments as defined in the ISA:
>
> cmpli cr0,r3,1024
>
> This appears to be a PPC440-ism, looking at the "PPC440x5 CPU Core
> User’s Manual" it shows cmpli having no L field, but implied to be 0 due
> to the core being 32-bit. It mentions that the ISA defines four
> arguments and recommends using cmplwi.
>
> [...]
Applied to powerpc/next.
[1/1] powerpc/dcr: Use cmplwi instead of 3-argument cmpli
https://git.kernel.org/powerpc/c/fef071be57dc43679a32d5b0e6ee176d6f12e9f2
cheers
prev parent reply other threads:[~2021-11-02 11:49 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-14 2:44 [PATCH] powerpc/dcr: Use cmplwi instead of 3-argument cmpli Michael Ellerman
2021-10-14 10:56 ` Segher Boessenkool
2021-10-14 18:15 ` Nick Desaulniers
2021-10-14 18:15 ` Nick Desaulniers
2021-11-02 10:12 ` Michael Ellerman [this message]
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