From: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
To: Robin Murphy <robin.murphy-5wv7dgnIgG8@public.gmane.org>
Cc: Hitoshi Mitake
<mitake.hitoshi-Zyj7fXuS5i5L9jVzuh4AOg@public.gmane.org>,
will.deacon-5wv7dgnIgG8@public.gmane.org,
Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>,
iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
tchalamarla-M3mlKVOIwJVv6pq1l3V1OdBPR1lH4CV8@public.gmane.org,
brian.starkey-5wv7dgnIgG8@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
Darren Hart <dvhart-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
Subject: Re: [PATCH 4/7] io-64-nonatomic: Add relaxed accessor variants
Date: Mon, 25 Apr 2016 18:11:55 +0200 [thread overview]
Message-ID: <6110512.c3CSTNRIy3@wuerfel> (raw)
In-Reply-To: <44173fd4e8efd27d670cadc6b30e215243a14099.1460391217.git.robin.murphy-5wv7dgnIgG8@public.gmane.org>
On Wednesday 13 April 2016 18:13:00 Robin Murphy wrote:
> Whilst commit 9439eb3ab9d1 ("asm-generic: io: implement relaxed
> accessor macros as conditional wrappers") makes the *_relaxed forms of
> I/O accessors universally available to drivers, in cases where writeq()
> is implemented via the io-64-nonatomic helpers, writeq_relaxed() will
> end up falling back to writel() regardless of whether writel_relaxed()
> is available (identically for s/write/read/).
>
> Add corresponding relaxed forms of the nonatomic helpers to delegate
> to the equivalent 32-bit accessors as appropriate.
>
> CC: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
> CC: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
> CC: Darren Hart <dvhart-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
> CC: Hitoshi Mitake <mitake.hitoshi-Zyj7fXuS5i5L9jVzuh4AOg@public.gmane.org>
> Signed-off-by: Robin Murphy <robin.murphy-5wv7dgnIgG8@public.gmane.org>
> ---
>
Acked-by: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
WARNING: multiple messages have this Message-ID (diff)
From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 4/7] io-64-nonatomic: Add relaxed accessor variants
Date: Mon, 25 Apr 2016 18:11:55 +0200 [thread overview]
Message-ID: <6110512.c3CSTNRIy3@wuerfel> (raw)
In-Reply-To: <44173fd4e8efd27d670cadc6b30e215243a14099.1460391217.git.robin.murphy@arm.com>
On Wednesday 13 April 2016 18:13:00 Robin Murphy wrote:
> Whilst commit 9439eb3ab9d1 ("asm-generic: io: implement relaxed
> accessor macros as conditional wrappers") makes the *_relaxed forms of
> I/O accessors universally available to drivers, in cases where writeq()
> is implemented via the io-64-nonatomic helpers, writeq_relaxed() will
> end up falling back to writel() regardless of whether writel_relaxed()
> is available (identically for s/write/read/).
>
> Add corresponding relaxed forms of the nonatomic helpers to delegate
> to the equivalent 32-bit accessors as appropriate.
>
> CC: Arnd Bergmann <arnd@arndb.de>
> CC: Christoph Hellwig <hch@lst.de>
> CC: Darren Hart <dvhart@linux.intel.com>
> CC: Hitoshi Mitake <mitake.hitoshi@lab.ntt.co.jp>
> Signed-off-by: Robin Murphy <robin.murphy@arm.com>
> ---
>
Acked-by: Arnd Bergmann <arnd@arndb.de>
next prev parent reply other threads:[~2016-04-25 16:11 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-13 17:12 [PATCH 0/7] arm-smmu: Implementation and context format differentiation Robin Murphy
2016-04-13 17:12 ` Robin Murphy
[not found] ` <cover.1460391217.git.robin.murphy-5wv7dgnIgG8@public.gmane.org>
2016-04-13 17:12 ` [PATCH 1/7] iommu/arm-smmu: Differentiate specific implementations Robin Murphy
2016-04-13 17:12 ` Robin Murphy
[not found] ` <cc1789284c5efa05514231fa3dede9d1d5f2df18.1460391217.git.robin.murphy-5wv7dgnIgG8@public.gmane.org>
2016-04-13 21:15 ` Chalamarla, Tirumalesh
2016-04-13 21:15 ` Chalamarla, Tirumalesh
2016-04-13 17:12 ` [PATCH 2/7] iommu/arm-smmu: Convert ThunderX workaround to new method Robin Murphy
2016-04-13 17:12 ` Robin Murphy
[not found] ` <98b8079ee3ede4427b045214a60ba77f1cb3552c.1460391217.git.robin.murphy-5wv7dgnIgG8@public.gmane.org>
2016-04-13 21:16 ` Chalamarla, Tirumalesh
2016-04-13 21:16 ` Chalamarla, Tirumalesh
2016-04-13 17:12 ` [PATCH 3/7] iommu/arm-smmu: Work around MMU-500 prefetch errata Robin Murphy
2016-04-13 17:12 ` Robin Murphy
[not found] ` <0484444b6257bfb6adb68405a72c64fc4fc98142.1460391217.git.robin.murphy-5wv7dgnIgG8@public.gmane.org>
2016-04-21 16:15 ` Will Deacon
2016-04-21 16:15 ` Will Deacon
2016-04-21 16:16 ` Will Deacon
2016-04-21 16:16 ` Will Deacon
2016-04-13 17:13 ` [PATCH 4/7] io-64-nonatomic: Add relaxed accessor variants Robin Murphy
2016-04-13 17:13 ` Robin Murphy
[not found] ` <44173fd4e8efd27d670cadc6b30e215243a14099.1460391217.git.robin.murphy-5wv7dgnIgG8@public.gmane.org>
2016-04-21 16:18 ` Will Deacon
2016-04-21 16:18 ` Will Deacon
[not found] ` <20160421161859.GK929-5wv7dgnIgG8@public.gmane.org>
2016-04-22 17:08 ` Robin Murphy
2016-04-22 17:08 ` Robin Murphy
[not found] ` <571A5A9E.7040305-5wv7dgnIgG8@public.gmane.org>
2016-04-25 13:32 ` Will Deacon
2016-04-25 13:32 ` Will Deacon
[not found] ` <20160425133242.GC30830-5wv7dgnIgG8@public.gmane.org>
2016-04-25 15:21 ` Arnd Bergmann
2016-04-25 15:21 ` Arnd Bergmann
2016-04-25 15:28 ` Robin Murphy
2016-04-25 15:28 ` Robin Murphy
[not found] ` <571E3781.3070609-5wv7dgnIgG8@public.gmane.org>
2016-04-25 15:41 ` Arnd Bergmann
2016-04-25 15:41 ` Arnd Bergmann
2016-04-25 16:11 ` Will Deacon
2016-04-25 16:11 ` Will Deacon
2016-04-25 16:11 ` Arnd Bergmann [this message]
2016-04-25 16:11 ` Arnd Bergmann
2016-04-26 10:38 ` [PATCH v2] " Robin Murphy
2016-04-26 10:38 ` Robin Murphy
2016-04-13 17:13 ` [PATCH 5/7] iommu/arm-smmu: Tidy up 64-bit/atomic I/O accesses Robin Murphy
2016-04-13 17:13 ` Robin Murphy
2016-04-13 17:13 ` [PATCH 6/7] iommu/arm-smmu: Decouple context format from kernel config Robin Murphy
2016-04-13 17:13 ` Robin Murphy
[not found] ` <173006777218859d1671ae517c70592c6c02f630.1460391217.git.robin.murphy-5wv7dgnIgG8@public.gmane.org>
2016-04-21 16:30 ` Will Deacon
2016-04-21 16:30 ` Will Deacon
[not found] ` <20160421163019.GL929-5wv7dgnIgG8@public.gmane.org>
2016-04-22 17:38 ` Robin Murphy
2016-04-22 17:38 ` Robin Murphy
[not found] ` <571A617C.3020102-5wv7dgnIgG8@public.gmane.org>
2016-04-25 11:02 ` Will Deacon
2016-04-25 11:02 ` Will Deacon
[not found] ` <20160425110219.GH16065-5wv7dgnIgG8@public.gmane.org>
2016-04-25 13:14 ` Robin Murphy
2016-04-25 13:14 ` Robin Murphy
[not found] ` <571E1851.2030400-5wv7dgnIgG8@public.gmane.org>
2016-04-25 13:41 ` Will Deacon
2016-04-25 13:41 ` Will Deacon
[not found] ` <20160425134108.GD30830-5wv7dgnIgG8@public.gmane.org>
2016-04-25 16:21 ` Robin Murphy
2016-04-25 16:21 ` Robin Murphy
2016-04-28 16:12 ` [PATCH v2] " Robin Murphy
2016-04-28 16:12 ` Robin Murphy
2016-04-13 17:13 ` [PATCH 7/7] iommu/arm-smmu: Support SMMUv1 64KB supplement Robin Murphy
2016-04-13 17:13 ` Robin Murphy
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