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=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 B6202C4361B for ; Tue, 2 Mar 2021 05:31:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9D35F64D9C for ; Tue, 2 Mar 2021 05:31:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1444693AbhCBCoD (ORCPT ); Mon, 1 Mar 2021 21:44:03 -0500 Received: from mail.kernel.org ([198.145.29.99]:36054 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236100AbhCAUA7 (ORCPT ); Mon, 1 Mar 2021 15:00:59 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id DDEB565044; Mon, 1 Mar 2021 17:57:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1614621428; bh=lOJMoHhIBfjQimR82PS9VHhtsP29EGOLRrCGfaWVRz0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=2RByEwvQHDR+1Nw4NlByOVpJOjxVbE3tdL+jO5piNAXbCN1eURGSM5+oaIbKRPIuh nZiYQ3S1N2RcI4fIVKrsLOR5DOGwTab2Qqqr+7DgvHd+S/ijq7VCN17JtF5az+lwCG f3fh55C7Q5kTRiQAbvuRpE2+hxTI98vIlFnxQ0/c= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Iskren Chernev , Rob Clark , Rob Clark , Sasha Levin Subject: [PATCH 5.11 495/775] drm/msm/mdp5: Fix wait-for-commit for cmd panels Date: Mon, 1 Mar 2021 17:11:03 +0100 Message-Id: <20210301161225.977094467@linuxfoundation.org> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210301161201.679371205@linuxfoundation.org> References: <20210301161201.679371205@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Iskren Chernev [ Upstream commit 68e4f01fddb4ead80e8c7084db489307f22c9cbb ] Before the offending commit in msm_atomic_commit_tail wait_flush was called once per frame, after the commit was submitted. After it wait_flush is also called at the beginning to ensure previous potentially async commits are done. For cmd panels the source of wait_flush is a ping-pong irq notifying a completion. The completion needs to be notified with complete_all so multiple waiting parties (new async committers) can proceed. Signed-off-by: Iskren Chernev Suggested-by: Rob Clark Fixes: 2d99ced787e3d ("drm/msm: async commit support") Signed-off-by: Rob Clark Signed-off-by: Sasha Levin --- drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c index 0c8f9f88301fa..f5d71b2740793 100644 --- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c @@ -1180,7 +1180,7 @@ static void mdp5_crtc_pp_done_irq(struct mdp_irq *irq, uint32_t irqstatus) struct mdp5_crtc *mdp5_crtc = container_of(irq, struct mdp5_crtc, pp_done); - complete(&mdp5_crtc->pp_completion); + complete_all(&mdp5_crtc->pp_completion); } static void mdp5_crtc_wait_for_pp_done(struct drm_crtc *crtc) -- 2.27.0