From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A5CE3C433DB for ; Thu, 14 Jan 2021 10:19:01 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 144DA23A3A for ; Thu, 14 Jan 2021 10:19:01 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 144DA23A3A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=chris-wilson.co.uk Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 851BC89C29; Thu, 14 Jan 2021 10:19:00 +0000 (UTC) Received: from fireflyinternet.com (unknown [77.68.26.236]) by gabe.freedesktop.org (Postfix) with ESMTPS id EB3FB89C29 for ; Thu, 14 Jan 2021 10:18:58 +0000 (UTC) X-Default-Received-SPF: pass (skip=forwardok (res=PASS)) x-ip-name=78.156.65.138; Received: from localhost (unverified [78.156.65.138]) by fireflyinternet.com (Firefly Internet (M1)) with ESMTP (TLS) id 23592751-1500050 for multiple; Thu, 14 Jan 2021 10:18:56 +0000 MIME-Version: 1.0 In-Reply-To: <161061921709.19482.2488244988261947924@build.alporthouse.com> References: <20210114092639.23762-1-chris@chris-wilson.co.uk> <20210114092639.23762-2-chris@chris-wilson.co.uk> <161061921709.19482.2488244988261947924@build.alporthouse.com> From: Chris Wilson To: intel-gfx@lists.freedesktop.org Date: Thu, 14 Jan 2021 10:18:54 +0000 Message-ID: <161061953488.19482.15393401097833081668@build.alporthouse.com> User-Agent: alot/0.9 Subject: Re: [Intel-gfx] [PATCH 2/2] drm/i915/selftests: Exercise cross-process context isolation X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Quoting Chris Wilson (2021-01-14 10:13:37) > Quoting Chris Wilson (2021-01-14 09:26:39) > > + rq = record_registers(A, a, result[0], result[1], false, &sema); > > + if (IS_ERR(rq)) { > > + err = PTR_ERR(rq); > > + goto err_result1; > > + } > > + > > + err = poison_registers(B, a, poison, false, &sema); > > Hmm. Will want to add a synchronisation pointer before poisoning the > registers, we want to make sure context A is active at the time. Already waits for the poison in record_registers, between the first and second reads! -Chris _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx