MIME-Version: 1.0
References: <76c11197b058193dcb8e8b26adffba09cfbdab11.1674632329.git.christophe.leroy@csgroup.eu>
 <20230201113155.18113-1-naresh.kamboju@linaro.org> <04b55866-aa17-f500-855a-7d4fb4bbaacf@csgroup.eu>
In-Reply-To: <04b55866-aa17-f500-855a-7d4fb4bbaacf@csgroup.eu>
From:   Nick Desaulniers <ndesaulniers@google.com>
Date:   Wed, 1 Feb 2023 09:29:45 -0800
Message-ID: <CAKwvOdnc_ggT_2FQQwq71PiDE_D1xxXXnB5iSWvvoa3pu7kMdQ@mail.gmail.com>
Subject: Re: [PATCH 1/2] powerpc/64: Set default CPU in Kconfig
To:     Christophe Leroy <christophe.leroy@csgroup.eu>
Cc:     Naresh Kamboju <naresh.kamboju@linaro.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>,
        "mpe@ellerman.id.au" <mpe@ellerman.id.au>,
        "npiggin@gmail.com" <npiggin@gmail.com>,
        "pali@kernel.org" <pali@kernel.org>,
        "arnd@arndb.de" <arnd@arndb.de>,
        "anders.roxell@linaro.org" <anders.roxell@linaro.org>,
        "llvm@lists.linux.dev" <llvm@lists.linux.dev>,
        "nathan@kernel.org" <nathan@kernel.org>,
        Linux Kernel Functional Testing <lkft@linaro.org>,
        qiongsiwu@gmail.com, nemanja.i.ibm@gmail.com
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
Precedence: bulk

On Wed, Feb 1, 2023 at 3:41 AM Christophe Leroy
<christophe.leroy@csgroup.eu> wrote:
>
>
>
> Le 01/02/2023 =C3=A0 12:31, Naresh Kamboju a =C3=A9crit :
> > Following build regression started from next-20230131.
> >
> > Regressions found on powerpc:
> >
> >    build/clang-nightly-tqm8xx_defconfig
> >    build/clang-nightly-ppc64e_defconfig
> >
> >
> > make --silent --keep-going --jobs=3D8 O=3D/home/tuxbuild/.cache/tuxmake=
/builds/1/build ARCH=3Dpowerpc CROSS_COMPILE=3Dpowerpc64le-linux-gnu- HOSTC=
C=3Dclang CC=3Dclang LLVM=3D1 LLVM_IAS=3D0 tqm8xx_defconfig
> > make --silent --keep-going --jobs=3D8 O=3D/home/tuxbuild/.cache/tuxmake=
/builds/1/build ARCH=3Dpowerpc CROSS_COMPILE=3Dpowerpc64le-linux-gnu- HOSTC=
C=3Dclang CC=3Dclang LLVM=3D1 LLVM_IAS=3D0
> >
> > error: unknown target CPU '860'
> > note: valid target CPU values are: generic, 440, 450, 601, 602, 603, 60=
3e, 603ev, 604, 604e, 620, 630, g3, 7400, g4, 7450, g4+, 750, 8548, 970, g5=
, a2, e500, e500mc, e5500, power3, pwr3, power4, pwr4, power5, pwr5, power5=
x, pwr5x, power6, pwr6, power6x, pwr6x, power7, pwr7, power8, pwr8, power9,=
 pwr9, power10, pwr10, powerpc, ppc, ppc32, powerpc64, ppc64, powerpc64le, =
ppc64le, future
> > make[2]: *** [/builds/linux/scripts/Makefile.build:114: scripts/mod/dev=
icetable-offsets.s] Error 1
> > error: unknown target CPU '860'
> > note: valid target CPU values are: generic, 440, 450, 601, 602, 603, 60=
3e, 603ev, 604, 604e, 620, 630, g3, 7400, g4, 7450, g4+, 750, 8548, 970, g5=
, a2, e500, e500mc, e5500, power3, pwr3, power4, pwr4, power5, pwr5, power5=
x, pwr5x, power6, pwr6, power6x, pwr6x, power7, pwr7, power8, pwr8, power9,=
 pwr9, power10, pwr10, powerpc, ppc, ppc32, powerpc64, ppc64, powerpc64le, =
ppc64le, future
> > make[2]: *** [/builds/linux/scripts/Makefile.build:252: scripts/mod/emp=
ty.o] Error 1
>
>
> On GCC, the possible values are:
>
> ppc-linux-gcc: note : valid arguments to =E2=80=98-mcpu=3D=E2=80=99 are: =
401 403 405 405fp
> 440 440fp 464 464fp 476 476fp 505 601 602 603 603e 604 604e 620 630 740
> 7400 7450 750 801 821 823 8540 8548 860 970 G3 G4 G5 a2 cell e300c2
> e300c3 e500mc e500mc64 e5500 e6500 ec603e native power3 power4 power5
> power5+ power6 power6x power7 power8 powerpc powerpc64 powerpc64le rs64
> titan
>
> How do you tell CLANG that you are building for powerpc 8xx ?

+ Nemanjai, Qiongsi,


>
> >
> >
> > Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
> >
> > https://qa-reports.linaro.org/lkft/linux-next-master/build/next-2023020=
1/testrun/14479384/suite/build/test/clang-nightly-tqm8xx_defconfig/history/
> >
> > The bisection pointed to this commit,
> >    45f7091aac35 ("powerpc/64: Set default CPU in Kconfig")
> >
> > --
> > Linaro LKFT
> > https://lkft.linaro.org


--=20
Thanks,
~Nick Desaulniers