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From: Timur Tabi <timur-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
To: Will Deacon <will.deacon-5wv7dgnIgG8@public.gmane.org>
Cc: "grant.likely-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org"
	<grant.likely-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
	rob.herring-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org,
	"iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org"
	<iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org>,
	"linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org"
	<linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>
Subject: Re: [PATCH 3/5] documentation/iommu: update description of ARM System MMU binding
Date: Tue, 04 Mar 2014 07:20:55 -0600	[thread overview]
Message-ID: <5315D337.5020909@codeaurora.org> (raw)
In-Reply-To: <20140304100837.GB8766-MRww78TxoiP5vMa5CHWGZ34zcgK1vI+I0E9HWUfgJXw@public.gmane.org>

Will Deacon wrote:
> I don't agree. We're making sensible use of a vendor prefix to isolate
> errata workarounds. The description clearly states that the implementation
> is buggy.

Yeah, but I'm disappointed that the patch doesn't explain the exact bug 
that necessitates the property.  I think that's an important clue for 
others to determine whether they would ever need this work-around.

> Given that there aren't any Calxeda engineers left working on this stuff,
> I'm heavily inclined to leave this patch as-is.

Fair enough.

WARNING: multiple messages have this Message-ID (diff)
From: timur@codeaurora.org (Timur Tabi)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 3/5] documentation/iommu: update description of ARM System MMU binding
Date: Tue, 04 Mar 2014 07:20:55 -0600	[thread overview]
Message-ID: <5315D337.5020909@codeaurora.org> (raw)
In-Reply-To: <20140304100837.GB8766@mudshark.cambridge.arm.com>

Will Deacon wrote:
> I don't agree. We're making sensible use of a vendor prefix to isolate
> errata workarounds. The description clearly states that the implementation
> is buggy.

Yeah, but I'm disappointed that the patch doesn't explain the exact bug 
that necessitates the property.  I think that's an important clue for 
others to determine whether they would ever need this work-around.

> Given that there aren't any Calxeda engineers left working on this stuff,
> I'm heavily inclined to leave this patch as-is.

Fair enough.

  parent reply	other threads:[~2014-03-04 13:20 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-02-21 17:16 [PATCH 0/5] iommu/arm-smmu: updates for 3.15 Will Deacon
2014-02-21 17:16 ` Will Deacon
     [not found] ` <1393002992-24561-1-git-send-email-will.deacon-5wv7dgnIgG8@public.gmane.org>
2014-02-21 17:16   ` [PATCH 1/5] iommu/arm-smmu: set MAX_MASTER_STREAMIDS to MAX_PHANDLE_ARGS Will Deacon
2014-02-21 17:16     ` Will Deacon
2014-02-21 17:16   ` [PATCH 2/5] iommu/arm-smmu: support buggy implementations with secure cfg accesses Will Deacon
2014-02-21 17:16     ` Will Deacon
2014-02-21 17:16   ` [PATCH 3/5] documentation/iommu: update description of ARM System MMU binding Will Deacon
2014-02-21 17:16     ` Will Deacon
2014-02-21 18:57     ` Sergei Shtylyov
2014-02-21 18:57       ` Sergei Shtylyov
     [not found]     ` <1393002992-24561-4-git-send-email-will.deacon-5wv7dgnIgG8@public.gmane.org>
2014-02-28 16:17       ` Timur Tabi
2014-02-28 16:17         ` Timur Tabi
     [not found]         ` <CAOZdJXUfAygZqw9s5qOECLjyo=B0VaD29iesbWzDeMbbyVTgqg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-02-28 16:21           ` Will Deacon
2014-02-28 16:21             ` Will Deacon
     [not found]             ` <20140228162114.GA30996-MRww78TxoiP5vMa5CHWGZ34zcgK1vI+I0E9HWUfgJXw@public.gmane.org>
2014-02-28 17:07               ` Timur Tabi
2014-02-28 17:07                 ` Timur Tabi
     [not found]                 ` <5310C253.40804-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2014-03-04 10:08                   ` Will Deacon
2014-03-04 10:08                     ` Will Deacon
     [not found]                     ` <20140304100837.GB8766-MRww78TxoiP5vMa5CHWGZ34zcgK1vI+I0E9HWUfgJXw@public.gmane.org>
2014-03-04 13:20                       ` Timur Tabi [this message]
2014-03-04 13:20                         ` Timur Tabi
2014-02-21 17:16   ` [PATCH 4/5] iommu/arm-smmu: clean up use of `flags' in page table handling code Will Deacon
2014-02-21 17:16     ` Will Deacon
2014-02-21 17:16   ` [PATCH 5/5] iommu/arm-smmu: provide option to dsb macro when publishing tables Will Deacon
2014-02-21 17:16     ` Will Deacon

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