The purpose of this patch set is to add hardware I/O Coherency support for Armada 370 and Armada XP. Theses SoCs come with an unit called coherency fabric. A beginning of the support for this unit have been introduced with the SMP patch set. This series extend this support: the coherency fabric unit allows to use the Armada XP and the Armada 370 as nearly coherent architectures.
The third patches enables this new feature and register our own set of DMA ops, to benefit this hardware enhancement. The first patches exports dma operation functions needed by to register our own set of dma ops. The second patch introduces a new flag for the address decoding configuration in order to be able to set the memory windows as shared memory. This series depend on the SMP patch set (V3 was posted on Monday) The git branch called HWIOCC-for-3.8-V2 is also available at https://github.com/MISL-EBU-System-SW/mainline-public.git. Changelog: V1 -> V2: - Rebased on to v3.7-rc5 - Added a new patch to exports the dma ops functions - Renamed the function for a more generic name mvebu_hwcc - removed the non SMP case during init - spelling and wording issues - updating the binding documentation for coherency fabric Gregory CLEMENT (3): arm: dma mapping: Export dma ops functions arm: plat-orion: Add coherency attribute when setup mbus target arm: mvebu: Add hardware I/O Coherency support .../devicetree/bindings/arm/coherency-fabric.txt | 9 ++- arch/arm/boot/dts/armada-370-xp.dtsi | 3 +- arch/arm/include/asm/dma-mapping.h | 62 +++++++++++++++++ arch/arm/mach-mvebu/addr-map.c | 3 + arch/arm/mach-mvebu/coherency.c | 73 ++++++++++++++++++++ arch/arm/mm/dma-mapping.c | 36 +++------- arch/arm/plat-orion/addr-map.c | 4 ++ arch/arm/plat-orion/include/plat/addr-map.h | 1 + 8 files changed, 160 insertions(+), 31 deletions(-) -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
