Rob, Russell, On Thursday 24 April 2014 11:30 AM, Santosh Shilimkar wrote: > Here is an updated v3 of the series. Series introduces support for setting up > dma parameters based on device tree properties like 'dma-ranges' and > 'dma-coherent' and also update to ARM 32 bit port. Earlier version of the > series can be found here [3], [2] and [1]. > > The 'dma-ranges' helps to take care of few DMAable system memory restrictions > by use of dma_pfn_offset which we maintain now per device. Arch code then > uses it for dma address translations for such cases. We update the > dma_pfn_offset accordingly during DT the device creation process.The > 'dma-coherent' property is used to setup arch's coherent dma_ops. > > Hopefully with acks, tested-by this version can get into 3.16 queue. I will > post a followup series for Keystone SOC which will use this infrastructure. > Linus W also wants to use this for ARM integrator platform dma offset issue. > > Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> > Cc: Russell King <linux@xxxxxxxxxxxxxxxx> > Cc: Arnd Bergmann <arnd@xxxxxxxx> > Cc: Olof Johansson <olof@xxxxxxxxx> > Cc: Grant Likely <grant.likely@xxxxxxxxxx> > Cc: Rob Herring <robh+dt@xxxxxxxxxx> > Cc: Catalin Marinas <catalin.marinas@xxxxxxx> > Cc: Linus Walleij <linus.walleij@xxxxxxxxxx> > Cc: Grygorii Strashko <grygorii.strashko@xxxxxx> > > Grygorii Strashko (2): > of: introduce of_dma_get_range() helper > ARM: dma: Use dma_pfn_offset for dma address translation > > Santosh Shilimkar (5): > device: introduce per device dma_pfn_offset > of: introduce of_dma_is_coherent() helper > of: configure the platform device dma parameters > ARM: dma: implement set_arch_dma_coherent_ops() > ARM: dma: use phys_addr_t in __dma_page_[cpu_to_dev/dev_to_cpu] > > arch/arm/include/asm/dma-mapping.h | 28 ++++++++++-- > arch/arm/mm/dma-mapping.c | 4 +- > drivers/of/address.c | 87 ++++++++++++++++++++++++++++++++++++ > drivers/of/platform.c | 71 +++++++++++++++++++++++++++-- > include/linux/device.h | 2 + > include/linux/dma-mapping.h | 7 +++ > include/linux/of_address.h | 8 ++++ > include/linux/of_platform.h | 6 +++ > 8 files changed, 204 insertions(+), 9 deletions(-) > How do we go about merging this series ? There is a dependency between the patches and hence the question. > > [1] http://www.spinics.net/lists/arm-kernel/msg311678.html > [2] https://lkml.org/lkml/2014/3/6/186 > [3] https://lkml.org/lkml/2014/4/19/80 > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
