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From: Robin Murphy <robin.murphy@arm.com>
To: will@kernel.org
Cc: iommu@lists.linux-foundation.org, linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 00/10] iommu/io-pgtable: Cleanup and prep for split tables
Date: Fri, 25 Oct 2019 19:08:29 +0100	[thread overview]
Message-ID: <cover.1572024119.git.robin.murphy@arm.com> (raw)

Hi all,

Since the flawed first attempt, I've reworked things with an abstracted
TCR and an explicit TTBR1 quirk. I originally envisaged the need to pass
the quirk all the way down to the TLBI calls, hence getting diverted
into trying to make the parameter passing less cluttered in general, but
in the end it turned out fairly neat to just fix the indexing such that
we can always just pass around the original unmodified IOVA. Most of the
new patches come from staring at that indexing code for long enough to
see the subtle inefficiencies that were worth ironing out, plus a bit of
random cleanup which doesn't feel worth posting separately.

Note that these patches depend on the fixes already queued in -rc4,
otherwise there will be conflicts in arm_mali_lpae_alloc_pgtable().

Robin.


Robin Murphy (10):
  iommu/io-pgtable: Make selftest gubbins consistently __init
  iommu/io-pgtable-arm: Rationalise size check
  iommu/io-pgtable-arm: Simplify bounds checks
  iommu/io-pgtable-arm: Simplify start level lookup
  iommu/io-pgtable-arm: Simplify PGD size handling
  iommu/io-pgtable-arm: Simplify level indexing
  iommu/io-pgtable-arm: Rationalise MAIR handling
  iommu/io-pgtable-arm: Rationalise TTBRn handling
  iommu/io-pgtable-arm: Rationalise TCR handling
  iommu/io-pgtable-arm: Prepare for TTBR1 usage

 drivers/iommu/arm-smmu-v3.c        |  45 ++----
 drivers/iommu/arm-smmu.c           |  20 +--
 drivers/iommu/arm-smmu.h           |  27 ++++
 drivers/iommu/io-pgtable-arm-v7s.c |  37 +++--
 drivers/iommu/io-pgtable-arm.c     | 238 ++++++++++++++---------------
 drivers/iommu/io-pgtable.c         |   2 +-
 drivers/iommu/ipmmu-vmsa.c         |   4 +-
 drivers/iommu/msm_iommu.c          |   4 +-
 drivers/iommu/mtk_iommu.c          |   4 +-
 drivers/iommu/qcom_iommu.c         |  15 +-
 include/linux/io-pgtable.h         |  19 ++-
 11 files changed, 209 insertions(+), 206 deletions(-)

-- 
2.21.0.dirty

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             reply	other threads:[~2019-10-25 18:08 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-25 18:08 Robin Murphy [this message]
2019-10-25 18:08 ` [PATCH v2 01/10] iommu/io-pgtable: Make selftest gubbins consistently __init Robin Murphy
2019-10-25 18:08 ` [PATCH v2 02/10] iommu/io-pgtable-arm: Rationalise size check Robin Murphy
2019-10-25 18:08 ` [PATCH v2 03/10] iommu/io-pgtable-arm: Simplify bounds checks Robin Murphy
2019-10-25 18:08 ` [PATCH v2 04/10] iommu/io-pgtable-arm: Simplify start level lookup Robin Murphy
2019-10-25 18:08 ` [PATCH v2 05/10] iommu/io-pgtable-arm: Simplify PGD size handling Robin Murphy
2019-10-25 18:08 ` [PATCH v2 06/10] iommu/io-pgtable-arm: Simplify level indexing Robin Murphy
2019-11-04 18:17   ` Will Deacon
2019-11-04 18:36     ` Robin Murphy
2019-11-04 19:20       ` Will Deacon
2019-10-25 18:08 ` [PATCH v2 07/10] iommu/io-pgtable-arm: Rationalise MAIR handling Robin Murphy
2019-11-04 18:20   ` Will Deacon
2019-11-04 18:43     ` Robin Murphy
2019-11-04 19:20       ` Will Deacon
2019-11-04 19:57         ` Will Deacon
2019-10-25 18:08 ` [PATCH v2 08/10] iommu/io-pgtable-arm: Rationalise TTBRn handling Robin Murphy
2019-10-28 15:09   ` Steven Price
2019-10-28 18:51     ` Robin Murphy
2019-11-04 18:36       ` Will Deacon
2019-11-04 19:12         ` Robin Murphy
2019-11-22 22:40   ` Jordan Crouse
2019-10-25 18:08 ` [PATCH v2 09/10] iommu/io-pgtable-arm: Rationalise TCR handling Robin Murphy
2019-11-04 19:14   ` Will Deacon
2019-11-04 23:27     ` Jordan Crouse
     [not found]       ` <20191120151142.GA26714@willie-the-truck>
2019-11-22 15:51         ` Robin Murphy
2019-11-25  7:58           ` Will Deacon
2019-11-22 22:03   ` Jordan Crouse
2019-10-25 18:08 ` [PATCH v2 10/10] iommu/io-pgtable-arm: Prepare for TTBR1 usage Robin Murphy
2019-11-04 23:40   ` Jordan Crouse
2019-11-20 19:18     ` Will Deacon
2019-11-22 22:03   ` Jordan Crouse
2019-11-04 19:22 ` [PATCH v2 00/10] iommu/io-pgtable: Cleanup and prep for split tables Will Deacon
2019-11-04 20:20   ` Will Deacon
2020-01-10 15:09     ` Will Deacon

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