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=-9.0 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,T_DKIMWL_WL_HIGH,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 A69C1C28CC3 for ; Thu, 30 May 2019 04:18:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 762BC24F54 for ; Thu, 30 May 2019 04:18:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1559189888; bh=MlcUk6G72+uvbk4USYC2xUeg1qIwVYA88yJIJcr6nNk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=2fz370IeAmNqev9z/Ew2u9e8GjqOj/MLJfB1pihZtHkvXqBmI6dlzPPUupFRhdmRZ bKaaxp18p38sm450ZbVBidW8F3QUwXz4K+KexHlUR3sZ3NVHqNVKqczaRZHv7xqBUf EHfHWuaRAs5ZjNtYXb7brUwL3w3w4poSffXrz5E0= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730385AbfE3DPg (ORCPT ); Wed, 29 May 2019 23:15:36 -0400 Received: from mail.kernel.org ([198.145.29.99]:39062 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730376AbfE3DPf (ORCPT ); Wed, 29 May 2019 23:15:35 -0400 Received: from localhost (ip67-88-213-2.z213-88-67.customer.algx.net [67.88.213.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 0BC7F245A7; Thu, 30 May 2019 03:15:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1559186135; bh=MlcUk6G72+uvbk4USYC2xUeg1qIwVYA88yJIJcr6nNk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RToj5ge8iT+Fe056ROxAUho0H/sw1jSR2bw6FEExuAPqWjZHVwYT+GKBkFh9Ijbgx UHuQ53wJXysBM/t6+A6xesMbcZgxQyIsqjrq0mDK7L48pkVAql5Bsp3F/pP2TLWuOb IWPODsiCRzcVMXtZHZFyrPWdXj+Vfqq2dVVmP/us= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Wenjing Liu , Jun Lei , Leo Li , Alex Deucher , Sasha Levin Subject: [PATCH 5.0 300/346] drm/amd/display: add pipe lock during stream update Date: Wed, 29 May 2019 20:06:13 -0700 Message-Id: <20190530030556.048112041@linuxfoundation.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190530030540.363386121@linuxfoundation.org> References: <20190530030540.363386121@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org [ Upstream commit e6bddf6c67f9a3abf6f1ef75e52bc1cd228dfe4d ] [why] Stream update will adjust both info packets and stream params, need to make sure all things are applied togather. [how] add pipe lock during stream update Signed-off-by: Wenjing Liu Reviewed-by: Jun Lei Acked-by: Leo Li Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/display/dc/core/dc.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index 68529acba015f..c0db7788c4641 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -1511,6 +1511,7 @@ static void commit_planes_do_stream_update(struct dc *dc, continue; if (stream_update->dpms_off) { + dc->hwss.pipe_control_lock(dc, pipe_ctx, true); if (*stream_update->dpms_off) { core_link_disable_stream(pipe_ctx, KEEP_ACQUIRED_RESOURCE); dc->hwss.optimize_bandwidth(dc, dc->current_state); @@ -1518,6 +1519,7 @@ static void commit_planes_do_stream_update(struct dc *dc, dc->hwss.prepare_bandwidth(dc, dc->current_state); core_link_enable_stream(dc->current_state, pipe_ctx); } + dc->hwss.pipe_control_lock(dc, pipe_ctx, false); } if (stream_update->abm_level && pipe_ctx->stream_res.abm) { -- 2.20.1