Re: [PATCH] iommu/arm-smmu-v3: limit use of 2-level stream tables

From	Will Deacon <will.deacon@arm.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH] iommu/arm-smmu-v3: limit use of 2-level stream tables
Date	2017-01-12 18:30 +0100
Message-ID	<sYRmh-6IL-3@gated-at.bofh.it> (permalink)
References	<sQpQd-4jH-17@gated-at.bofh.it> <sYaKm-5sT-5@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Tue, Jan 10, 2017 at 02:47:13PM -0500, Nate Watterson wrote:
> In the current arm-smmu-v3 driver, all smmus that support 2-level
> stream tables are being forced to use them. This is suboptimal for
> smmus that support fewer stream id bits than would fill in a single
> second level table. This patch limits the use of 2-level tables to
> smmus that both support the feature and whose first level table can
> possibly contain more than a single entry.
> 
> Signed-off-by: Nate Watterson <nwatters@codeaurora.org>
> ---
>  drivers/iommu/arm-smmu-v3.c | 21 ++++++++++-----------
>  1 file changed, 10 insertions(+), 11 deletions(-)

Thanks Nate, I'll queue this for 4.11. Sorry for messing you about before.

Will

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[PATCH] iommu/arm-smmu-v3: limit use of 2-level stream tables Nate Watterson <nwatters@codeaurora.org> - 2017-01-10 21:00 +0100
  Re: [PATCH] iommu/arm-smmu-v3: limit use of 2-level stream tables Will Deacon <will.deacon@arm.com> - 2017-01-12 18:30 +0100

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