Re: [PATCH v3 0/4] PCI: get DMA configuration from parent device

[Murali Karicheri]

On 01/07/2015 06:08 PM, Bjorn Helgaas wrote:
> On Wed, Jan 7, 2015 at 5:05 PM, Murali Karicheri<m-karicheri2@xxxxxx>  wrote:
> > On 01/07/2015 01:49 PM, Murali Karicheri wrote:
> > > PCI devices on Keystone doesn't have correct dma_pfn_offset set. This
> > > patch
> > > add capability to set the dma configuration such as dma-mask,
> > > dma_pfn_offset,
> > > and dma ops etc using the information from DT. The prior RFCs and
> > > discussions
> > > are available at [1] and [2] below.
> > >
> > > [2] :
> > > https://www.mail-archive.com/linux-kernel@xxxxxxxxxxxxxxx/msg790244.html
> > > [1] : http://www.gossamer-threads.com/lists/linux/kernel/2024591
> > >
> > > Change history:
> > >          v3 - addressed comments to re-use of_dma_configure() for PCI
> > >             - To help re-use, change of_iommu_configure() function argument
> > >                  - Move of_dma_configure to of/device.c
> > >                  - Limit the of_iommu_configure to non pci devices
> > >          v2 - update size to coherent_dma_mask + 1 if dma-range info is
> > > missing
> > >             - also check the np for null.
> > >          v1 - updates based on the comments against initial RFC.
> > >             - Added a helper function to get the OF node of the parent
> > >             - Added an API in of_pci.c to update DMA configuration of the
> > > pci
> > >               device.
> > >
> > > Murali Karicheri (4):
> > >     of: iommu: add ptr to OF node arg to of_iommu_configure()
> > >     of: move of_dma_configure() to device,c to help re-use
> > >     of/pci: add of_pci_dma_configure() update dma configuration
> > >     PCI: update dma configuration from DT
> > >
> > >    drivers/iommu/of_iommu.c  |   10 ++++++--
> > >    drivers/of/device.c       |   58
> > > +++++++++++++++++++++++++++++++++++++++++++++
> > >    drivers/of/of_pci.c       |   39 ++++++++++++++++++++++++++++++
> > >    drivers/of/platform.c     |   58
> > > ++-------------------------------------------
> > >    drivers/pci/probe.c       |    2 ++
> > >    include/linux/of_device.h |    2 ++
> > >    include/linux/of_iommu.h  |    6 +++--
> > >    include/linux/of_pci.h    |   12 ++++++++++
> > >    8 files changed, 127 insertions(+), 60 deletions(-)
> > Bjorn,
> >
> > Could you review this series from the PCI subsystem point of view?
>
> Will do, it's in my patchwork queue.  I'm just returning after a
> couple weeks of vacation, during which I moved across the country, so
> it will take me a bit to catch up.
>
> Bjorn
Bjorn,

Thanks and Happy New year!

--
Murali Karicheri
Linux Kernel, Texas Instruments
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