From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
To: Paul Cercueil <paul@crapouillou.net>
Cc: Guoyun Sun <sunguoyun@loongson.cn>,
Paul Burton <paulburton@kernel.org>,
Daniel Silsby <dansilsby@gmail.com>,
Jiaxun Yang <jiaxun.yang@flygoat.com>,
Dmitry Korotin <dkorotin@wavecomp.com>,
Andrew Morton <akpm@linux-foundation.org>,
Steven Price <steven.price@arm.com>,
Geert Uytterhoeven <geert@linux-m68k.org>,
Mike Rapoport <rppt@linux.ibm.com>,
Anshuman Khandual <anshuman.khandual@arm.com>,
linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org,
TieZhu Yang <yangtiezhu@loongson.cn>,
Xuefeng Li <lixuefeng@loongson.cn>
Subject: Re: [PATCH] mips/mm: Add page soft dirty tracking
Date: Mon, 27 Apr 2020 11:04:12 +0200 [thread overview]
Message-ID: <20200427090412.GA7286@alpha.franken.de> (raw)
In-Reply-To: <QNNE9Q.WIYO7ZSN6WHE@crapouillou.net>
On Sun, Apr 26, 2020 at 07:09:26PM +0200, Paul Cercueil wrote:
> >> arch/mips/Kconfig | 1 +
> >> arch/mips/include/asm/pgtable-bits.h | 8 ++++--
> >> arch/mips/include/asm/pgtable.h | 48
> >>++++++++++++++++++++++++++++++++++--
> >
> >this breaks all 32bit builds where CPU support RIXI, because it overflows
> >pgtable_bits.
>
> I think we'd need to make PTEs 64-bit at some point.
I'm taking patches ;-) Any idea how much performance impact we might
see by this ?
Thomas.
--
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea. [ RFC1925, 2.3 ]
next prev parent reply other threads:[~2020-04-27 9:30 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-21 9:15 [PATCH] mips/mm: Add page soft dirty tracking Guoyun Sun
2020-04-26 16:54 ` Thomas Bogendoerfer
2020-04-26 17:09 ` Paul Cercueil
2020-04-27 9:04 ` Thomas Bogendoerfer [this message]
2020-04-26 17:10 ` Jiaxun Yang
2020-04-29 1:41 ` kbuild test robot
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