From: Andreas Herrmann <andreas.herrmann-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org>
To: Will Deacon <will.deacon-5wv7dgnIgG8@public.gmane.org>
Cc: iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
Rob Herring <robherring2-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Subject: [PATCH v2 0/7] iommu/arm-smmu: Misc modifications to support SMMUs on Calxeda ECX-2000
Date: Thu, 10 Oct 2013 00:37:59 +0200 [thread overview]
Message-ID: <1381358286-27065-1-git-send-email-andreas.herrmann@calxeda.com> (raw)
Hi,
Here is v2 of arm-smmu changes to support SMMUs on Calxeda ECX-2000.
Note that patch 7/7 (Introduce automatic stream-id-masking) is not
required to support SMMUs on Calxeda ECX-2000. In fact the algorithm
implemented won't help to determine a suitable smr-mask for 10
StreamIDs that we have for SATA.
In case of 2, 4, 8, ... (power-of-two) ... number of StreamIDs for a
master device it might be able (depending on further restriction for
the StreamIDs) to determine the right mask which then allows to use
only one SMR group for stream matching for this master instead of
using several SMR groups (one for each StreamID).
Changelog:
v2:
- Modified options handling
- Added patch to document new DT properties (that select driver options)
- Added patch to introduce automatic stream-id-masking
v1:
http://marc.info/?l=linux-arm-kernel&m=138122450023564
Regards,
Andreas
next reply other threads:[~2013-10-09 22:37 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-09 22:37 Andreas Herrmann [this message]
[not found] ` <1381358286-27065-1-git-send-email-andreas.herrmann-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org>
2013-10-09 22:38 ` [PATCH 1/7] iommu/arm-smmu: Introduce driver option handling Andreas Herrmann
[not found] ` <1381358286-27065-2-git-send-email-andreas.herrmann-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org>
2013-10-10 15:44 ` Will Deacon
2013-10-09 22:38 ` [PATCH 2/7] iommu/arm-smmu: Introduce bus notifier block Andreas Herrmann
[not found] ` <1381358286-27065-3-git-send-email-andreas.herrmann-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org>
2013-10-10 16:12 ` Will Deacon
[not found] ` <20131010161217.GD8528-MRww78TxoiP5vMa5CHWGZ34zcgK1vI+I0E9HWUfgJXw@public.gmane.org>
2013-10-10 16:47 ` Andreas Herrmann
2013-10-09 22:38 ` [PATCH 3/7] iommu/arm-smmu: Introduce stream ID masking Andreas Herrmann
2013-10-09 22:38 ` [PATCH 4/7] iommu/arm-smmu: Support buggy implementations where all config accesses are secure Andreas Herrmann
[not found] ` <1381358286-27065-5-git-send-email-andreas.herrmann-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org>
2013-10-10 15:47 ` Will Deacon
[not found] ` <20131010154726.GB8528-MRww78TxoiP5vMa5CHWGZ34zcgK1vI+I0E9HWUfgJXw@public.gmane.org>
2013-10-10 15:57 ` Andreas Herrmann
2013-10-09 22:38 ` [PATCH 5/7] ARM: dts: Add nodes for SMMUs on Calxeda ECX-2000 Andreas Herrmann
2013-10-09 22:38 ` [PATCH 6/7] documentation/iommu: Update description of ARM System MMU binding Andreas Herrmann
2013-10-09 22:38 ` [PATCH 7/7] iommu/arm-smmu: Introduce automatic stream-id-masking Andreas Herrmann
[not found] ` <1381358286-27065-8-git-send-email-andreas.herrmann-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org>
2013-10-10 16:05 ` Will Deacon
[not found] ` <20131010160539.GC8528-MRww78TxoiP5vMa5CHWGZ34zcgK1vI+I0E9HWUfgJXw@public.gmane.org>
2013-10-10 17:01 ` Andreas Herrmann
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