Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752639AbcD1OUV (ORCPT ); Thu, 28 Apr 2016 10:20:21 -0400 Received: from us01smtprelay-2.synopsys.com ([198.182.60.111]:37119 "EHLO smtprelay.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752593AbcD1OUR (ORCPT ); Thu, 28 Apr 2016 10:20:17 -0400 From: Alexey Brodkin To: dri-devel@lists.freedesktop.org Cc: linux-kernel@vger.kernel.org, linux-snps-arc@lists.infradead.org, Alexey Brodkin , Dave Airlie , Daniel Vetter , devicetree@vger.kernel.org Subject: [PATCH 0/2 v2] drm/arcpgu: Get use of dedicated memory area for frame buffer Date: Thu, 28 Apr 2016 17:19:54 +0300 Message-Id: <1461853196-15599-1-git-send-email-abrodkin@synopsys.com> X-Mailer: git-send-email 2.5.5 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1051 Lines: 30 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 Cc: Daniel Vetter Cc: devicetree@vger.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