From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from ni.piap.pl ([195.187.100.4]:36171 "EHLO ni.piap.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750728Ab3JDIGs (ORCPT ); Fri, 4 Oct 2013 04:06:48 -0400 From: khalasa@piap.pl (Krzysztof =?utf-8?Q?Ha=C5=82asa?=) To: linux-mips@linux-mips.org Cc: linux-media@vger.kernel.org References: Date: Fri, 04 Oct 2013 10:06:45 +0200 In-Reply-To: ("Krzysztof =?utf-8?Q?Ha=C5=82as?= =?utf-8?Q?a=22's?= message of "Thu, 03 Oct 2013 16:00:47 +0200") MIME-Version: 1.0 Message-ID: Content-Type: text/plain Subject: Re: Suspected cache coherency problem on V4L2 and AR7100 CPU Sender: linux-media-owner@vger.kernel.org List-ID: > I'm debugging a problem with a SOLO6110-based H.264 PCI video encoder on > Atheros AR7100-based (MIPS, big-endian) platform. BTW this CPU obviously has VIPT data cache, this means a physical page with multiple virtual addresses (e.g. mapped multiple times) may and will be cached multiple times. AR7100 = arch/mips/ath79. -- Krzysztof Halasa Research Institute for Automation and Measurements PIAP Al. Jerozolimskie 202, 02-486 Warsaw, Poland