From patchwork Wed Mar 16 07:51:06 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: You-Sheng Yang X-Patchwork-Id: 1606031 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ubuntu.com (client-ip=91.189.94.19; helo=huckleberry.canonical.com; envelope-from=kernel-team-bounces@lists.ubuntu.com; receiver=) Received: from huckleberry.canonical.com (huckleberry.canonical.com [91.189.94.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by bilbo.ozlabs.org (Postfix) with ESMTPS id 4KJMsm1ns1z9sCD for ; Wed, 16 Mar 2022 18:51:23 +1100 (AEDT) Received: from localhost ([127.0.0.1] helo=huckleberry.canonical.com) by huckleberry.canonical.com with esmtp (Exim 4.86_2) (envelope-from ) id 1nUOR9-0007Bp-8h; Wed, 16 Mar 2022 07:51:15 +0000 Received: from mail-pj1-f54.google.com ([209.85.216.54]) by huckleberry.canonical.com with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2) (envelope-from ) id 1nUOR8-0007BB-9E for kernel-team@lists.ubuntu.com; Wed, 16 Mar 2022 07:51:14 +0000 Received: by mail-pj1-f54.google.com with SMTP id fs4-20020a17090af28400b001bf5624c0aaso1701263pjb.0 for ; Wed, 16 Mar 2022 00:51:13 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:subject:date:message-id:mime-version :content-transfer-encoding; bh=4H+UGVV5x9jfbgqVXOBI9QEYg61OpH4u+m/uRalnPGw=; b=irnhxkAObBQOoyQtrEThy0ZWQilx/U5RtXQfeZitz7pdi4z+Efp2QAz3YH/0G0oplG d9drqa2xVZoIe8USmIhXmOOr/2a44MakUjVQcF8GVi5XmdN4sCWd6kKx4Uga3jb13VRm mVvPp08P4GupHuVb0K0PTus71fitZtdBIe8m9iRbnAUBGlR9L+YuvKFnFb5Dsm7lvBlE 4a6vhpa4UlZwUr/NCccbFLfSEr3iy1a/jA24fByXWQuDG3YyhsA6xcSAyloQo9SCRq8s IpFy4Kpfdi3H1AYcxECo9YtcMcbRBy6IEeJ2MB8EBGdMCOWvvH//Z4VOnYw/qXQOrg01 o0fg== X-Gm-Message-State: AOAM53244bA3i+KCYsFcKYvjTV3egGMgaObEjm/SZV5uTcQYk6fGXjQi IzQzMd5+HtFqn1XNiM3ezvq+hRagViQ= X-Google-Smtp-Source: ABdhPJwyGZDkOfzBjCOuselm3ZwLtCltIYk7wnN7/W61DyA0JfThYC/Nqr/0avUV3nHs9rAqbiyUKg== X-Received: by 2002:a17:902:d2ce:b0:151:d1ab:4398 with SMTP id n14-20020a170902d2ce00b00151d1ab4398mr31711443plc.73.1647417072094; Wed, 16 Mar 2022 00:51:12 -0700 (PDT) Received: from localhost (2001-b400-e7a8-8e4e-9beb-d002-2069-d1fb.emome-ip6.hinet.net. [2001:b400:e7a8:8e4e:9beb:d002:2069:d1fb]) by smtp.gmail.com with ESMTPSA id g13-20020a056a000b8d00b004f75395b2b4sm1832572pfj.55.2022.03.16.00.51.10 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 16 Mar 2022 00:51:11 -0700 (PDT) From: You-Sheng Yang To: kernel-team@lists.ubuntu.com Subject: [PATCH 0/2][SRU][OEM-5.14] Choppy trackpad/USB mouse on AMD Rembrandt with PSR enabled panel Date: Wed, 16 Mar 2022 15:51:06 +0800 Message-Id: <20220316075109.3371061-1-vicamo.yang@canonical.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Received-SPF: pass client-ip=209.85.216.54; envelope-from=vicamo@gmail.com; helo=mail-pj1-f54.google.com X-BeenThere: kernel-team@lists.ubuntu.com X-Mailman-Version: 2.1.20 Precedence: list List-Id: Kernel team discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: kernel-team-bounces@lists.ubuntu.com Sender: "kernel-team" BugLink: https://bugs.launchpad.net/amd/+bug/1964850 [Impact] Disjoint trackpad/mouse path found on PSR capable panels. [Fix] Two fixes from v5.17-rc6 that only turns off vblank IRQs when PSR is not enabled, originally for commit f94cf1cb1796 ("drm/amdgpu/display: set vblank_disable_immediate for DC") that was being backported to LTS stable 5.15.y, and therefore oem-5.14. [Test Case] Simply move the mouse around. [Where problems could occur] This follows for AMD platforms, the power-saving performance may not be as good as before, but while we don't have such energy-saving certificate program for AMD yet, this would become something to be fully addressed in the future. [Other Info] These fixes have been applied to v5.15.27, and oem-5.14 currently has v5.15.25 in -1028, therefore only oem-5.14 is nominated, but probably they will still be included through stable patch backport in the next release. Michel Dänzer (1): drm/amd/display: For vblank_disable_immediate, check PSR is really used Nicholas Kazlauskas (1): drm/amdgpu/display: Only set vblank_disable_immediate when PSR is not enabled drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-)