lkml.org 
[lkml]   [2015]   [Jan]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH v3 0/4] PCI: get DMA configuration from parent device
    On 01/07/2015 06:08 PM, Bjorn Helgaas wrote:
    > On Wed, Jan 7, 2015 at 5:05 PM, Murali Karicheri<m-karicheri2@ti.com> 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@vger.kernel.org/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


    \
     
     \ /
      Last update: 2015-01-08 17:01    [W:2.582 / U:0.344 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site