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Date: Thu, 28 Apr 2016 17:19:54 +0300 From: Alexey Brodkin <Alexey.Brodkin@...opsys.com> To: dri-devel@...ts.freedesktop.org Cc: linux-kernel@...r.kernel.org, linux-snps-arc@...ts.infradead.org, Alexey Brodkin <Alexey.Brodkin@...opsys.com>, Dave Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>, devicetree@...r.kernel.org Subject: [PATCH 0/2 v2] drm/arcpgu: Get use of dedicated memory area for frame buffer 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@...il.com> Cc: Daniel Vetter <daniel@...ll.ch> Cc: devicetree@...r.kernel.org 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
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