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=-3.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,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 DABEBC433E0 for ; Thu, 11 Jun 2020 09:05:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BAE562078D for ; Thu, 11 Jun 2020 09:05:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726943AbgFKJFk (ORCPT ); Thu, 11 Jun 2020 05:05:40 -0400 Received: from gloria.sntech.de ([185.11.138.130]:51988 "EHLO gloria.sntech.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726697AbgFKJFk (ORCPT ); Thu, 11 Jun 2020 05:05:40 -0400 Received: from p5b127c64.dip0.t-ipconnect.de ([91.18.124.100] helo=phil.localnet) by gloria.sntech.de with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1jjJ9W-0006it-Li; Thu, 11 Jun 2020 11:05:38 +0200 From: Heiko Stuebner To: dri-devel@lists.freedesktop.org Cc: Tomeu Vizoso , LKML , David Airlie , Steven Price , Alyssa Rosenzweig Subject: Re: [PATCH 1/2] panfrost: Make sure GPU is powered on when reading GPU_LATEST_FLUSH_ID Date: Thu, 11 Jun 2020 11:05:37 +0200 Message-ID: <4351778.0rgn4tIXvQ@phil> In-Reply-To: <20200611085900.49740-1-tomeu.vizoso@collabora.com> References: <20200611085900.49740-1-tomeu.vizoso@collabora.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Am Donnerstag, 11. Juni 2020, 10:58:43 CEST schrieb Tomeu Vizoso: > Bifrost devices do support the flush reduction feature, so on first job > submit we were trying to read the register while still powered off. > > If the GPU is powered off, the feature doesn't bring any benefit, so > don't try to read. > > Signed-off-by: Tomeu Vizoso on a PX30-board (sibling of rk3326) with a 720x1280 panel and glmark2 running all tests Tested-by: Heiko Stuebner