From: Ralf Baechle <ralf@linux-mips.org>
To: Chen Jie <chenj@lemote.com>
Cc: "Paul Burton" <paul.burton@imgtec.com>,
"Huacai Chen" <chenhc@lemote.com>,
"Linux MIPS Mailing List" <linux-mips@linux-mips.org>,
王锐 <wangr@lemote.com>
Subject: Re: [PATCH 2/2] MIPS: lib: csum_partial: use wsbh/movn on ls3
Date: Mon, 19 May 2014 19:06:58 +0200 [thread overview]
Message-ID: <20140519170658.GB17197@linux-mips.org> (raw)
In-Reply-To: <CAGXxSxWD2ryrv0JHnOUpDkjXGGKLk=5=RYH_aEXsq9kCu40LfQ@mail.gmail.com>
On Mon, May 19, 2014 at 11:15:15PM +0800, Chen Jie wrote:
> 2014-05-19 18:02 GMT+08:00 Paul Burton <paul.burton@imgtec.com>:
> > On Sun, May 18, 2014 at 10:39:20PM +0800, Huacai Chen wrote:
> >> Due to Wang Rui's tests, Loongson-3's EI/DI instructions don't have
> >> correct behaviors, its Status.FR is also different with MIPS64R2. So,
> >> I don't want to select CPU_MIPS64_R2.
> >
> > Out of curiosity, how do ei & di misbehave?
> In our test, it may cause machine stall if use ei&di in kernel,
> especially in smp case.
In that case we could make the use of DI/EI depend on a new errata flag
in war.h or similar.
Ralf
next prev parent reply other threads:[~2014-05-19 17:07 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-18 8:23 [PATCH 2/2] MIPS: lib: csum_partial: use wsbh/movn on ls3 chenj
2014-05-18 14:39 ` Huacai Chen
2014-05-19 10:02 ` Paul Burton
2014-05-19 15:15 ` Chen Jie
2014-05-19 17:06 ` Ralf Baechle [this message]
2014-05-20 12:33 ` cee1
2014-05-24 1:33 ` Huacai Chen
-- strict thread matches above, loose matches on Subject: below --
2014-05-15 7:09 [PATCH 1/2] MIPS: lib: csum_partial: more instruction paral chenj
2014-05-15 7:09 ` [PATCH 2/2] MIPS: lib: csum_partial: use wsbh/movn on ls3 chenj
2014-05-15 11:40 ` Paul Burton
2014-05-15 11:40 ` Paul Burton
2014-05-16 13:29 ` Chen Jie
2014-05-16 15:21 ` Paul Burton
2014-06-03 11:03 ` Ralf Baechle
2014-06-03 15:03 ` Chen Jie
2014-06-03 18:44 ` Ralf Baechle
2014-06-04 7:57 ` Chen Jie
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