linux-kernel - [RFC PATCH 0/6] iommu/arm-smmu: Add support for DMA domains and instruction fetch

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Date:	Wed, 27 Jan 2016 10:51:13 +0530
From:	Anup Patel <anup.patel@...adcom.com>
To:	Catalin Marinas <catalin.marinas@....com>,
	Joerg Roedel <joro@...tes.org>,
	Will Deacon <will.deacon@....com>,
	Robin Murphy <Robin.Murphy@....com>,
	Sricharan R <sricharan@...eaurora.org>,
	Linux IOMMU <iommu@...ts.linux-foundation.org>,
	Linux ARM Kernel <linux-arm-kernel@...ts.infradead.org>
CC:	Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
	"Mark Rutland" <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	"Device Tree" <devicetree@...r.kernel.org>,
	Ray Jui <rjui@...adcom.com>,
	Scott Branden <sbranden@...adcom.com>,
	Vikram Prakash <vikramp@...adcom.com>,
	"Linux Kernel" <linux-kernel@...r.kernel.org>,
	BCM Kernel Feedback <bcm-kernel-feedback-list@...adcom.com>,
	Anup Patel <anup.patel@...adcom.com>
Subject: [RFC PATCH 0/6] iommu/arm-smmu: Add support for DMA domains and instruction fetch

This patchset adds following to SMMUv1/SMMUv2 driver:
1. Support for domain type IOMMU_DOMAIN_DMA
2. Allow privilege instruction fetchs from MMU masters by having
a DT option to treat instruction fetch as data read

The patchset is based on '4.5-rc1' tag of linux mainline tree
and is available in smmu_v1 branch of
https://github.com/Broadcom/arm64-linux.git

All patches have been tested on Broadcom SoCs having SMMU-500.

Anup Patel (5):
  iommu/arm-smmu: Invoke DT probe from arm_smmu_of_setup()
  of: iommu: Increment DT node refcount in of_iommu_set_ops()
  iommu/arm-smmu: Add support for IOMMU_DOMAIN_DMA in SMMUv1/SMMUv2
    driver
  iommu/arm-smmu: Option to treat instruction fetch as data read for
    SMMUv2
  iommu/arm-smmu: Update bindings document for smmu-inst-as-data DT
    option

Sricharan R (1):
  iommu/arm-smmu: Init driver using IOMMU_OF_DECLARE

 .../devicetree/bindings/iommu/arm,smmu.txt         |  8 +++
 drivers/iommu/arm-smmu.c                           | 70 +++++++++++++++++-----
 drivers/iommu/of_iommu.c                           |  1 +
 3 files changed, 65 insertions(+), 14 deletions(-)

-- 
1.9.1