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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 77EE7EB64DC for ; Fri, 21 Jul 2023 07:25:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229824AbjGUHZW (ORCPT ); Fri, 21 Jul 2023 03:25:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54478 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229551AbjGUHZV (ORCPT ); Fri, 21 Jul 2023 03:25:21 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A5956FC for ; Fri, 21 Jul 2023 00:25:20 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 39D576112C for ; Fri, 21 Jul 2023 07:25:20 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0B560C433C7; Fri, 21 Jul 2023 07:25:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1689924319; bh=/r5CRc7dRgbz+e7xXP9wTfVi3T94q4pc6z/GRwvR0G0=; h=Subject:To:Cc:From:Date:From; b=U1Pblkm0k6LO6/Qv28sUddQCdhDv8HbRM4ECIbAbU1/X2n/Plg7VcJX/rZASzJLCV ltEbHCQyOjhI5HnwMarC/xrFni6ixppAvvnMX6cj8q7CGSb4b1TQSqo9mZs8b48qTp h3k5J1Chz3eWZa9K7mcE2O6J3DoxPMaz1y6y8e8A= Subject: FAILED: patch "[PATCH] drm/amd/display: fix dcn315 single stream crb allocation" failed to apply to 6.4-stable tree To: dmytro.laktyushkin@amd.com, Charlene.Liu@amd.com, alexander.deucher@amd.com, daniel.wheeler@amd.com, mario.limonciello@amd.com, stylon.wang@amd.com Cc: From: Date: Fri, 21 Jul 2023 09:25:08 +0200 Message-ID: <2023072108-register-output-3cba@gregkh> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org The patch below does not apply to the 6.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.4.y git checkout FETCH_HEAD git cherry-pick -x 49f26218c344741cb3eaa740b1e44e960551a87f # git commit -s git send-email --to '' --in-reply-to '2023072108-register-output-3cba@gregkh' --subject-prefix 'PATCH 6.4.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 49f26218c344741cb3eaa740b1e44e960551a87f Mon Sep 17 00:00:00 2001 From: Dmytro Laktyushkin Date: Tue, 16 May 2023 15:50:40 -0400 Subject: [PATCH] drm/amd/display: fix dcn315 single stream crb allocation Change to improve avoiding asymetric crb calculations for single stream scenarios. Cc: Mario Limonciello Cc: Alex Deucher Cc: stable@vger.kernel.org Acked-by: Stylon Wang Signed-off-by: Dmytro Laktyushkin Reviewed-by: Charlene Liu Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher diff --git a/drivers/gpu/drm/amd/display/dc/dcn315/dcn315_resource.c b/drivers/gpu/drm/amd/display/dc/dcn315/dcn315_resource.c index cb95e978417b..8570bdc292b4 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn315/dcn315_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn315/dcn315_resource.c @@ -1628,6 +1628,10 @@ static bool allow_pixel_rate_crb(struct dc *dc, struct dc_state *context) int i; struct resource_context *res_ctx = &context->res_ctx; + /*Don't apply for single stream*/ + if (context->stream_count < 2) + return false; + for (i = 0; i < dc->res_pool->pipe_count; i++) { if (!res_ctx->pipe_ctx[i].stream) continue; @@ -1727,19 +1731,23 @@ static int dcn315_populate_dml_pipes_from_context( pipe_cnt++; } - /* Spread remaining unreserved crb evenly among all pipes, use default policy if not enough det or single pipe */ + /* Spread remaining unreserved crb evenly among all pipes*/ if (pixel_rate_crb) { for (i = 0, pipe_cnt = 0, crb_idx = 0; i < dc->res_pool->pipe_count; i++) { pipe = &res_ctx->pipe_ctx[i]; if (!pipe->stream) continue; + /* Do not use asymetric crb if not enough for pstate support */ + if (remaining_det_segs < 0) { + pipes[pipe_cnt].pipe.src.det_size_override = 0; + continue; + } + if (!pipe->top_pipe && !pipe->prev_odm_pipe) { bool split_required = pipe->stream->timing.pix_clk_100hz >= dcn_get_max_non_odm_pix_rate_100hz(&dc->dml.soc) || (pipe->plane_state && pipe->plane_state->src_rect.width > 5120); - if (remaining_det_segs < 0 || crb_pipes == 1) - pipes[pipe_cnt].pipe.src.det_size_override = 0; if (remaining_det_segs > MIN_RESERVED_DET_SEGS) pipes[pipe_cnt].pipe.src.det_size_override += (remaining_det_segs - MIN_RESERVED_DET_SEGS) / crb_pipes + (crb_idx < (remaining_det_segs - MIN_RESERVED_DET_SEGS) % crb_pipes ? 1 : 0); @@ -1755,6 +1763,7 @@ static int dcn315_populate_dml_pipes_from_context( } /* Convert segments into size for DML use */ pipes[pipe_cnt].pipe.src.det_size_override *= DCN3_15_CRB_SEGMENT_SIZE_KB; + crb_idx++; } pipe_cnt++;