This mini-series allows to allocate frame buffer memory in desired location. Allocation of a frame buffer memory in a special memory region allows bypassing of so-called IO Coherency aperture which is typically set as a range 0x8z-0xAz. I.e. all data traffic to PGU bypasses IO Coherency block and saves its bandwidth for other peripherals. Cc: Dave Airlie <airlied@xxxxxxxxx> Cc: Daniel Vetter <daniel@xxxxxxxx> Cc: devicetree@xxxxxxxxxxxxxxx Changes v1 -> v2: * Reserved memory size bumped from 16Mb to 32Mb. * Reserved area in AXS103 boards moved to the very end of available DDR. Alexey Brodkin (2): drm/arcpgu: use dedicated memory area for frame buffer ARC: [axs10x] Specify reserved memory for frame buffer arch/arc/boot/dts/axc001.dtsi | 22 ++++++++++++++++++++-- arch/arc/boot/dts/axc003.dtsi | 14 ++++++++++++++ arch/arc/boot/dts/axc003_idu.dtsi | 14 ++++++++++++++ arch/arc/boot/dts/axs10x_mb.dtsi | 2 +- drivers/gpu/drm/arc/arcpgu_drv.c | 6 ++++++ 5 files changed, 55 insertions(+), 3 deletions(-) -- 2.5.5 -- 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
