From: Mark Salter <msalter-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
To: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
Ard Biesheuvel
<ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
mark.rutland-5wv7dgnIgG8@public.gmane.org,
linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
matt.fleming-ral2JQCrhuEAvxtiuMwx3w@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 11:30:24 -0400 [thread overview]
Message-ID: <1406647824.753.12.camel@deneb.redhat.com> (raw)
In-Reply-To: <2385684.COvj9k7y2z@wuerfel>
On Tue, 2014-07-29 at 17:20 +0200, Arnd Bergmann wrote:
> On Tuesday 29 July 2014 11:15:45 Mark Salter wrote:
> > > -
> > > - __flush_dcache_area(release_addr, sizeof(release_addr[0]));
> > > + writeq_relaxed(__pa(secondary_holding_pen), release_addr);
> > > + __flush_dcache_area(release_addr, sizeof(*release_addr));
> >
> > __flush_dcache_area((__force void *)release_addr, ...
> >
> > to avoid sparse warning.
> >
>
> I think it would be cleaner to drop the __iomem annotation and use vmap()
> rather than ioremap(). That requires having a 'struct page' though, which
> I'm not sure you have.
>
You won't. If you did have a struct page, then __va() would work.
WARNING: multiple messages have this Message-ID (diff)
From: msalter@redhat.com (Mark Salter)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/3] arm64: spin-table: handle unmapped cpu-release-addrs
Date: Tue, 29 Jul 2014 11:30:24 -0400 [thread overview]
Message-ID: <1406647824.753.12.camel@deneb.redhat.com> (raw)
In-Reply-To: <2385684.COvj9k7y2z@wuerfel>
On Tue, 2014-07-29 at 17:20 +0200, Arnd Bergmann wrote:
> On Tuesday 29 July 2014 11:15:45 Mark Salter wrote:
> > > -
> > > - __flush_dcache_area(release_addr, sizeof(release_addr[0]));
> > > + writeq_relaxed(__pa(secondary_holding_pen), release_addr);
> > > + __flush_dcache_area(release_addr, sizeof(*release_addr));
> >
> > __flush_dcache_area((__force void *)release_addr, ...
> >
> > to avoid sparse warning.
> >
>
> I think it would be cleaner to drop the __iomem annotation and use vmap()
> rather than ioremap(). That requires having a 'struct page' though, which
> I'm not sure you have.
>
You won't. If you did have a struct page, then __va() would work.
next prev parent reply other threads:[~2014-07-29 15:30 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 [this message]
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
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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