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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, 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 78741C433E1 for ; Tue, 9 Jun 2020 00:59:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 39CB9208A7 for ; Tue, 9 Jun 2020 00:59:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1591664341; bh=7IiQDXdq9Z5dE9WWdDCDCvrJ4FHOUElT9vMdc58iVhs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=0009T6Brt+GSDZDnF8p5wuTrmnuBAIxlWVaH76FvrLHaiDUw2xnVJ6zQyumw1hCXI TEwmkLv/J1GYQqdHuJS+EBjDipjkB29p0bAOZ3QG1Mmdl1KGoYUCJxLFDPyHog4nfL d9LL/RESB25KGEk9udu9V9AWIdn3PzdN0a7HsXVs= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731019AbgFIA6v (ORCPT ); Mon, 8 Jun 2020 20:58:51 -0400 Received: from mail.kernel.org ([198.145.29.99]:54182 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728235AbgFHXIn (ORCPT ); Mon, 8 Jun 2020 19:08:43 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id A7FD920890; Mon, 8 Jun 2020 23:08:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1591657723; bh=7IiQDXdq9Z5dE9WWdDCDCvrJ4FHOUElT9vMdc58iVhs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=f4Lj95ghCpXTJQqlfuuZHf7dryN6Fo+aQ3BoWQTVM5Dv+ueDnAckKCN1EMlR2uG8l ulVrJsFgu0Y8+gbMSc6EpvyVRuK9wPJ0prj3LJuWjl47SedX5yKLQxaRTyzBg0naWU ZN/wFuOgq+YxXqA+5pd5RskMRDXnb86qP5eAxNto= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Dale Zhao , Sung Lee , Yongqiang Sun , Rodrigo Siqueira , Alex Deucher , Sasha Levin , amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: [PATCH AUTOSEL 5.7 116/274] drm/amd/display: Correct updating logic of dcn21's pipe VM flags Date: Mon, 8 Jun 2020 19:03:29 -0400 Message-Id: <20200608230607.3361041-116-sashal@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200608230607.3361041-1-sashal@kernel.org> References: <20200608230607.3361041-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Dale Zhao [ Upstream commit 2a28fe92220a116735ef45939b7edcfee83cc6b0 ] [Why]: Renoir's pipe VM flags are not correctly updated if pipe strategy has changed during some scenarios. It will result in watermarks mistakenly calculation, thus underflow and garbage appear. [How]: Correctly update pipe VM flags to pipes which have been populated. Signed-off-by: Dale Zhao Signed-off-by: Sung Lee Reviewed-by: Yongqiang Sun Acked-by: Rodrigo Siqueira Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c index a721bb401ef0..6d1736cf5c12 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c @@ -1694,12 +1694,8 @@ static int dcn21_populate_dml_pipes_from_context( { uint32_t pipe_cnt = dcn20_populate_dml_pipes_from_context(dc, context, pipes); int i; - struct resource_context *res_ctx = &context->res_ctx; - for (i = 0; i < dc->res_pool->pipe_count; i++) { - - if (!res_ctx->pipe_ctx[i].stream) - continue; + for (i = 0; i < pipe_cnt; i++) { pipes[i].pipe.src.hostvm = 1; pipes[i].pipe.src.gpuvm = 1; -- 2.25.1