From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 884EF1C08 for ; Wed, 28 Dec 2022 16:41:16 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 04C86C433D2; Wed, 28 Dec 2022 16:41:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1672245676; bh=G3ROSK40a4GXYNI2mhMT7pqzHEVcNH4bNL+rSJgEHkY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lmqSZcC3o2YRnFMMFMnbWlupyQoW3dNEGsJ4xkTQzMKdmdFS7TOXxUbhfWuX2o/Dn yZjAJ3fKyxstoW7+9NNiIU80dCebWg5y2fIUmCs+I7WXeyS+TAT50MxMVWVyrI5MCJ F1Ip7yMsHskfHLi6yRcmdNLYpSRkZt28S7M0RjVU= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jun Lei , Alan Liu , Wesley Chalmers , Daniel Wheeler , Alex Deucher , Sasha Levin Subject: [PATCH 6.0 0936/1073] drm/amd/display: Disable DRR actions during state commit Date: Wed, 28 Dec 2022 15:42:04 +0100 Message-Id: <20221228144353.452294651@linuxfoundation.org> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20221228144328.162723588@linuxfoundation.org> References: <20221228144328.162723588@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Wesley Chalmers [ Upstream commit de020e5fa9ebc6fc32e82ae6ccb0282451ed937c ] [WHY] Committing a state while performing DRR actions can cause underflow. [HOW] Disabled features performing DRR actions during state commit. Need to follow-up on why DRR actions affect state commit. Reviewed-by: Jun Lei Acked-by: Alan Liu Signed-off-by: Wesley Chalmers Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c index fb59fed8f425..9d369155901a 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c @@ -973,8 +973,5 @@ void dcn30_prepare_bandwidth(struct dc *dc, dc->clk_mgr->funcs->set_max_memclk(dc->clk_mgr, dc->clk_mgr->bw_params->clk_table.entries[dc->clk_mgr->bw_params->clk_table.num_entries - 1].memclk_mhz); dcn20_prepare_bandwidth(dc, context); - - dc_dmub_srv_p_state_delegate(dc, - context->bw_ctx.bw.dcn.clk.fw_based_mclk_switching, context); } -- 2.35.1