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(-) Regards, Santosh [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 -- 1.7.9.5 -- 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
