From: Paolo Ornati <ornati@fastwebnet.it>
To: simrw@sim-basis.de
Cc: linux-kernel@vger.kernel.org, akpm@osdl.org
Subject: Re: [patch 2.6.14-rc1] i386: Correct Pentium optimization
Date: Tue, 13 Sep 2005 14:47:49 +0200 [thread overview]
Message-ID: <20050913144749.28794d63@localhost> (raw)
In-Reply-To: <3974.192.168.6.50.1126612308.squirrel@simlinux>
On Tue, 13 Sep 2005 13:51:48 +0200 (CEST)
simrw@sim-basis.de wrote:
> -cflags-$(CONFIG_MPENTIUMII) += -march=i686 $(call cc-option,-mtune=pentium2)
> -cflags-$(CONFIG_MPENTIUMIII) += -march=i686 $(call cc-option,-mtune=pentium3)
> -cflags-$(CONFIG_MPENTIUMM) += -march=i686 $(call cc-option,-mtune=pentium3)
> -cflags-$(CONFIG_MPENTIUM4) += -march=i686 $(call cc-option,-mtune=pentium4)
> +cflags-$(CONFIG_MPENTIUMII) += $(call cc-option,-march=pentium2,-march=i686)
> +cflags-$(CONFIG_MPENTIUMIII) += $(call cc-option,-march=pentium3,-march=i686)
> +cflags-$(CONFIG_MPENTIUMM) += $(call cc-option,-march=pentium-m,-march=i686)
> +cflags-$(CONFIG_MPENTIUM4) += $(call cc-option,-march=pentium4,-march=i686)
I'm not sure that it is safe, read this:
http://groups.google.it/group/linux.kernel/browse_frm/thread/89467f7aa9963d4f/b4575e40eecc713a?lnk=st&q=march%3Dpentium4+mtune+group:linux.kernel&rnum=1&hl=it#b4575e40eecc713a
--
Paolo Ornati
Linux 2.6.14-rc1 on x86_64
prev parent reply other threads:[~2005-09-13 12:46 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-13 11:51 [patch 2.6.14-rc1] i386: Correct Pentium optimization simrw
2005-09-13 12:47 ` Paolo Ornati [this message]
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