Re: [PATCH v3 00/13] iommu: Add PASID support to Arm SMMUv3

From: "zhangfei.gao@foxmail.com" <zhangfei.gao@foxmail.com>
To: Jean-Philippe Brucker <jean-philippe@linaro.org>,
	linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-acpi@vger.kernel.org, devicetree@vger.kernel.org,
	iommu@lists.linux-foundation.org
Cc: mark.rutland@arm.com, lorenzo.pieralisi@arm.com,
	robin.murphy@arm.com, joro@8bytes.org, guohanjun@huawei.com,
	rjw@rjwysocki.net, eric.auger@redhat.com, robh+dt@kernel.org,
	jonathan.cameron@huawei.com, sudeep.holla@arm.com,
	bhelgaas@google.com, zhangfei.gao@linaro.org, will@kernel.org,
	lenb@kernel.org
Subject: Re: [PATCH v3 00/13] iommu: Add PASID support to Arm SMMUv3
Date: Tue, 10 Dec 2019 13:52:50 +0800	[thread overview]
Message-ID: <56fb5aec-50ee-5bc0-dbd5-ff944080c62b@foxmail.com> (raw)
In-Reply-To: <20191209180514.272727-1-jean-philippe@linaro.org>

On 2019/12/10 上午2:05, Jean-Philippe Brucker wrote:
> Add support for Substream ID and PASIDs to the SMMUv3 driver.
> Changes since v2 [1]:
>
> * Split preparatory work into patches 5, 6, 8 and 9.
>
> * Added patch 1. Not strictly relevant, but since we're moving the DMA
>    allocations and adding a new one, we might as well clean the flags
>    first.
>
> * Fixed a double free reported by Jonathan, and other small
>    issues.
>
> * Added patch 12. Upstream commit c6e9aefbf9db ("PCI/ATS: Remove unused
>    PRI and PASID stubs") removed the unused PASID stubs. Since the SMMU
>    driver can be built without PCI, the stubs are now needed.
>
> [1] https://lore.kernel.org/linux-iommu/20191108152508.4039168-1-jean-philippe@linaro.org/
>
> Jean-Philippe Brucker (13):
>    iommu/arm-smmu-v3: Drop __GFP_ZERO flag from DMA allocation
>    dt-bindings: document PASID property for IOMMU masters
>    iommu/arm-smmu-v3: Support platform SSID
>    ACPI/IORT: Support PASID for platform devices
>    iommu/arm-smmu-v3: Prepare arm_smmu_s1_cfg for SSID support
>    iommu/arm-smmu-v3: Add context descriptor tables allocators
>    iommu/arm-smmu-v3: Add support for Substream IDs
>    iommu/arm-smmu-v3: Propate ssid_bits
>    iommu/arm-smmu-v3: Handle failure of arm_smmu_write_ctx_desc()
>    iommu/arm-smmu-v3: Add second level of context descriptor table
>    iommu/arm-smmu-v3: Improve add_device() error handling
>    PCI/ATS: Add PASID stubs
>    iommu/arm-smmu-v3: Add support for PCI PASID
>

Thanks Jean for enabling the sva feature.

The series tested well on Hisilicon platform KunPeng920
Tested-by: Zhangfei Gao <zhangfei.gao@linaro.org>

Thanks

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