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From:   Srinath Mannam <srinath.mannam@broadcom.com>
Date:   Thu, 21 Feb 2019 14:29:39 +0530
Message-ID: <CABe79T66daJOditCZ-6ENKW2ugbpDUUfjn1CMHCcDtb3=HiiOQ@mail.gmail.com>
Subject: Re: [PATCH v3 0/3] PCIe Host request to reserve IOVA
To:     Bjorn Helgaas <bhelgaas@google.com>,
        Robin Murphy <robin.murphy@arm.com>,
        Joerg Roedel <joro@8bytes.org>,
        Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
        poza@codeaurora.org, Ray Jui <rjui@broadcom.com>
Cc:     BCM Kernel Feedback <bcm-kernel-feedback-list@broadcom.com>,
        linux-pci@vger.kernel.org, iommu@lists.linux-foundation.org,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
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Hi Bjorn,

Please help to review this patch series.
Thank you.

Regards,
Srinath.
On Fri, Jan 25, 2019 at 3:44 PM Srinath Mannam
<srinath.mannam@broadcom.com> wrote:
>
> Few SOCs have limitation that their PCIe host can't allow few inbound
> address ranges. Allowed inbound address ranges are listed in dma-ranges
> DT property and this address ranges are required to do IOVA mapping.
> Remaining address ranges have to be reserved in IOVA mapping.
>
> PCIe Host driver of those SOCs has to list all address ranges which have
> to reserve their IOVA address into PCIe host bridge resource entry list.
> IOMMU framework will reserve these IOVAs while initializing IOMMU domain.
>
> This patch set is based on Linux-5.0-rc2.
>
> Changes from v2:
>   - Patch set rebased to Linux-5.0-rc2
>
> Changes from v1:
>   - Addressed Oza review comments.
>
> Srinath Mannam (3):
>   PCI: Add dma-resv window list
>   iommu/dma: Reserve IOVA for PCI host reserve address list
>   PCI: iproc: Add dma reserve resources to host
>
>  drivers/iommu/dma-iommu.c           |  8 ++++++
>  drivers/pci/controller/pcie-iproc.c | 51 ++++++++++++++++++++++++++++++++++++-
>  drivers/pci/probe.c                 |  3 +++
>  include/linux/pci.h                 |  1 +
>  4 files changed, 62 insertions(+), 1 deletion(-)
>
> --
> 2.7.4
>