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From: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
To: Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>
Cc: "linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org"
	<linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>,
	"msalter-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org"
	<msalter-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
	Ard Biesheuvel
	<ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
	"linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	"matt.fleming-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org"
	<matt.fleming-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
	"leif.lindholm-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org"
	<leif.lindholm-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Subject: Re: [PATCH 1/3] arm64: spin-table: handle unmapped cpu-release-addrs
Date: Tue, 29 Jul 2014 18:24:02 +0200	[thread overview]
Message-ID: <2849588.TpFoAMfcUF@wuerfel> (raw)
In-Reply-To: <20140729161852.GC32108@leverpostej>

On Tuesday 29 July 2014 17:18:52 Mark Rutland wrote:
> Sorry, I'd misunderstood the problem and my suggestion was nonsense
> deriving from that.
> 
> Having the (__force void *) cast in the call to __flush_dcache_area
> sounds like the right solution to me.

Well, there isn't really a good solution here I think, because you
are not really dealing with an iomem pointer after all, just something
a bit like that, but we don't have a 'memremap' function to do what
you really mean.

	Arnd

WARNING: multiple messages have this Message-ID (diff)
From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/3] arm64: spin-table: handle unmapped cpu-release-addrs
Date: Tue, 29 Jul 2014 18:24:02 +0200	[thread overview]
Message-ID: <2849588.TpFoAMfcUF@wuerfel> (raw)
In-Reply-To: <20140729161852.GC32108@leverpostej>

On Tuesday 29 July 2014 17:18:52 Mark Rutland wrote:
> Sorry, I'd misunderstood the problem and my suggestion was nonsense
> deriving from that.
> 
> Having the (__force void *) cast in the call to __flush_dcache_area
> sounds like the right solution to me.

Well, there isn't really a good solution here I think, because you
are not really dealing with an iomem pointer after all, just something
a bit like that, but we don't have a 'memremap' function to do what
you really mean.

	Arnd

  reply	other threads:[~2014-07-29 16:24 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-07-29 10:49 [PATCH 0/3] arm64/efi: improve TEXT_OFFSET handling Ard Biesheuvel
2014-07-29 10:49 ` Ard Biesheuvel
     [not found] ` <1406630950-32432-1-git-send-email-ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2014-07-29 10:49   ` [PATCH 1/3] arm64: spin-table: handle unmapped cpu-release-addrs Ard Biesheuvel
2014-07-29 10:49     ` Ard Biesheuvel
     [not found]     ` <1406630950-32432-2-git-send-email-ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2014-07-29 15:15       ` Mark Salter
2014-07-29 15:15         ` Mark Salter
     [not found]         ` <1406646945.753.5.camel-PDpCo7skNiwAicBL8TP8PQ@public.gmane.org>
2014-07-29 15:17           ` Mark Salter
2014-07-29 15:17             ` Mark Salter
2014-07-29 15:20           ` Arnd Bergmann
2014-07-29 15:20             ` Arnd Bergmann
2014-07-29 15:30             ` Mark Salter
2014-07-29 15:30               ` Mark Salter
     [not found]               ` <1406647824.753.12.camel-PDpCo7skNiwAicBL8TP8PQ@public.gmane.org>
2014-07-29 15:38                 ` Arnd Bergmann
2014-07-29 15:38                   ` Arnd Bergmann
2014-07-29 16:03             ` Mark Rutland
2014-07-29 16:03               ` Mark Rutland
2014-07-29 16:13               ` Arnd Bergmann
2014-07-29 16:13                 ` Arnd Bergmann
2014-07-29 16:18                 ` Mark Rutland
2014-07-29 16:18                   ` Mark Rutland
2014-07-29 16:24                   ` Arnd Bergmann [this message]
2014-07-29 16:24                     ` Arnd Bergmann
2014-07-29 10:49   ` [PATCH 2/3] arm64/efi: efistub: cover entire static mem footprint in PE/COFF .text Ard Biesheuvel
2014-07-29 10:49     ` Ard Biesheuvel
     [not found]     ` <1406630950-32432-3-git-send-email-ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2014-07-29 15:36       ` Mark Salter
2014-07-29 15:36         ` Mark Salter
2014-07-29 10:49   ` [PATCH 3/3] arm64/efi: efistub: don't abort if base of DRAM is occupied Ard Biesheuvel
2014-07-29 10:49     ` Ard Biesheuvel
     [not found]     ` <1406630950-32432-4-git-send-email-ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2014-07-29 15:29       ` Mark Salter
2014-07-29 15:29         ` Mark Salter
     [not found]         ` <1406647756.753.11.camel-PDpCo7skNiwAicBL8TP8PQ@public.gmane.org>
2014-07-29 18:17           ` Ard Biesheuvel
2014-07-29 18:17             ` Ard Biesheuvel
     [not found]             ` <CAKv+Gu8Pwi6GuGq9jbGfHyALcJKtAG+KVDcVwpYVCG9ZKrhaPA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-07-29 18:27               ` Mark Salter
2014-07-29 18:27                 ` Mark Salter
     [not found]                 ` <1406658428.753.22.camel-PDpCo7skNiwAicBL8TP8PQ@public.gmane.org>
2014-07-29 18:46                   ` Ard Biesheuvel
2014-07-29 18:46                     ` Ard Biesheuvel
     [not found]                     ` <CAKv+Gu-3J+1u1vcCAOgfq6JRfSc7_pykaV2OwGRNSOORTS1=1A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-07-29 19:20                       ` Mark Salter
2014-07-29 19:20                         ` Mark Salter
     [not found]                         ` <1406661621.753.34.camel-PDpCo7skNiwAicBL8TP8PQ@public.gmane.org>
2014-07-29 19:33                           ` Ard Biesheuvel
2014-07-29 19:33                             ` Ard Biesheuvel

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