linux-kernel - Re: [PATCH v3 0/3] PCIe Host request to reserve IOVA

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Message-ID: <CABe79T6QVF-Dgajj6S_0Z9ZnfsV3vuWUasU-eLtTBPkEaBzjAw@mail.gmail.com>
Date:   Wed, 27 Mar 2019 14:14:20 +0530
From:   Srinath Mannam <srinath.mannam@...adcom.com>
To:     Bjorn Helgaas <bhelgaas@...gle.com>,
        Robin Murphy <robin.murphy@....com>,
        Joerg Roedel <joro@...tes.org>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        poza@...eaurora.org, Ray Jui <rjui@...adcom.com>
Cc:     BCM Kernel Feedback <bcm-kernel-feedback-list@...adcom.com>,
        linux-pci@...r.kernel.org, iommu@...ts.linux-foundation.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 0/3] PCIe Host request to reserve IOVA

Hi Bjorn,

Could you please help to review the patch series below?

Thanks,
Srinath.

On Thu, Feb 21, 2019 at 2:29 PM Srinath Mannam
<srinath.mannam@...adcom.com> wrote:
>
> 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@...adcom.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
> >