From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Andy Lutomirski <luto@amacapital.net>
Cc: "ksummit-discuss@lists.linuxfoundation.org"
<ksummit-discuss@lists.linuxfoundation.org>
Subject: Re: [Ksummit-discuss] [TECH TOPIC] Semantics of MMIO mapping attributes accross archs
Date: Tue, 07 Jul 2015 08:04:39 +1000 [thread overview]
Message-ID: <1436220279.3948.75.camel@kernel.crashing.org> (raw)
In-Reply-To: <CALCETrVeZGRr06tzAgYMdqG-FqSssWWLZZkGSCriJM8pqCx1BA@mail.gmail.com>
On Mon, 2015-07-06 at 10:14 -0700, Andy Lutomirski wrote:
> I should have said it more clearly: I think that this construct
> *should* result in the outermost prot. That is: pgprot_xyz(p) should
> have mode xyz regardless of p.
>
> x86 doesn't work that way right now. Instead pgprot_xyz(p) returns
> garbage if p has prot bits set.
Agreed. It should.
Ben.
next prev parent reply other threads:[~2015-07-06 22:04 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-04 8:17 [Ksummit-discuss] [TECH TOPIC] Semantics of MMIO mapping attributes accross archs Benjamin Herrenschmidt
2015-07-04 14:12 ` Dan Williams
2015-07-05 3:02 ` Benjamin Herrenschmidt
2015-07-05 18:55 ` Andy Lutomirski
2015-07-05 19:56 ` Benjamin Herrenschmidt
2015-07-05 20:09 ` Andy Lutomirski
2015-07-06 9:33 ` Will Deacon
2015-07-06 22:02 ` Benjamin Herrenschmidt
2015-07-07 9:56 ` Will Deacon
2015-07-07 10:29 ` Will Deacon
2015-07-06 9:52 ` Catalin Marinas
2015-07-06 17:14 ` Andy Lutomirski
2015-07-06 22:04 ` Benjamin Herrenschmidt [this message]
2015-07-06 19:11 ` Luck, Tony
2015-07-07 0:01 ` Luis R. Rodriguez
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