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=-20.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,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 CC3F8C07E9C for ; Tue, 6 Jul 2021 11:19:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B93F161D3C for ; Tue, 6 Jul 2021 11:19:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233708AbhGFLWM (ORCPT ); Tue, 6 Jul 2021 07:22:12 -0400 Received: from mail.kernel.org ([198.145.29.99]:54674 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232644AbhGFLSq (ORCPT ); Tue, 6 Jul 2021 07:18:46 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 7BFA061C5E; Tue, 6 Jul 2021 11:16:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1625570168; bh=LUddqVS7juItvlJP47q9S0eA1W8luO+r258Pe877anQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=mGbSL/NrapMXjBUPqzCU3zQ6dJC0SgakThJxkykABmuP1QYA+Xd6Qd7Ui40A47SP3 /1mzDNEakBVo//UMzNIiMXewhOGw8ZMULzqHJIZPOAIUqukrcYsqGgbnRpCHREMUW4 i8pVcowQaFsPm94dHwr7x3IQHd4XZA538VxsdF+Rx5oWTEhGSRtm2imqNlbn3Tf9yQ UFsMqei14KBEDRqx84YIh4Uh0SxaNJBPLFziKMAyMCFX5uQtZBdFrq62sOZYApT+vm Iv87m2fOPiiQzVme4/WkYg+t14gSxRa1lJ7H5cp5iYgTVhPZ1WNyGdCbbTcbannn1/ LhHHWuL//mYdQ== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Nikola Cornij , Dmytro Laktyushkin , Stylon Wang , Daniel Wheeler , Alex Deucher , Sasha Levin , amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: [PATCH AUTOSEL 5.13 088/189] drm/amd/display: Fix DCN 3.01 DSCCLK validation Date: Tue, 6 Jul 2021 07:12:28 -0400 Message-Id: <20210706111409.2058071-88-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210706111409.2058071-1-sashal@kernel.org> References: <20210706111409.2058071-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Nikola Cornij [ Upstream commit 346cf627fb27c0fea63a041cedbaa4f31784e504 ] [why] DSCCLK validation is not necessary because DSCCLK is derrived from DISPCLK, therefore if DISPCLK validation passes, DSCCLK is valid, too. Doing DSCLK validation in addition to DISPCLK leads to modes being wrongly rejected when DSCCLK was incorrectly set outside of DML. [how] Remove DSCCLK validation because it's implicitly validated under DISPCLK Signed-off-by: Nikola Cornij Reviewed-by: Dmytro Laktyushkin Acked-by: Stylon Wang Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- .../dc/dml/dcn30/display_mode_vba_30.c | 64 ++++++------------- 1 file changed, 21 insertions(+), 43 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c b/drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c index cb3f70a71b51..af7d57602b2c 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c +++ b/drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c @@ -64,6 +64,7 @@ typedef struct { #define BPP_INVALID 0 #define BPP_BLENDED_PIPE 0xffffffff #define DCN30_MAX_DSC_IMAGE_WIDTH 5184 +#define DCN30_MAX_FMT_420_BUFFER_WIDTH 4096 static void DisplayPipeConfiguration(struct display_mode_lib *mode_lib); static void DISPCLKDPPCLKDCFCLKDeepSleepPrefetchParametersWatermarksAndPerformanceCalculation( @@ -3987,19 +3988,30 @@ void dml30_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_l } else if (v->PlaneRequiredDISPCLKWithoutODMCombine > v->MaxDispclkRoundedDownToDFSGranularity) { v->ODMCombineEnablePerState[i][k] = dm_odm_combine_mode_2to1; v->PlaneRequiredDISPCLK = v->PlaneRequiredDISPCLKWithODMCombine2To1; - } else if (v->DSCEnabled[k] && (v->HActive[k] > DCN30_MAX_DSC_IMAGE_WIDTH)) { - v->ODMCombineEnablePerState[i][k] = dm_odm_combine_mode_2to1; - v->PlaneRequiredDISPCLK = v->PlaneRequiredDISPCLKWithODMCombine2To1; } else { v->ODMCombineEnablePerState[i][k] = dm_odm_combine_mode_disabled; v->PlaneRequiredDISPCLK = v->PlaneRequiredDISPCLKWithoutODMCombine; - /*420 format workaround*/ - if (v->HActive[k] > 4096 && v->OutputFormat[k] == dm_420) { + } + if (v->DSCEnabled[k] && v->HActive[k] > DCN30_MAX_DSC_IMAGE_WIDTH + && v->ODMCombineEnablePerState[i][k] != dm_odm_combine_mode_4to1) { + if (v->HActive[k] / 2 > DCN30_MAX_DSC_IMAGE_WIDTH) { + v->ODMCombineEnablePerState[i][k] = dm_odm_combine_mode_4to1; + v->PlaneRequiredDISPCLK = v->PlaneRequiredDISPCLKWithODMCombine4To1; + } else { + v->ODMCombineEnablePerState[i][k] = dm_odm_combine_mode_2to1; + v->PlaneRequiredDISPCLK = v->PlaneRequiredDISPCLKWithODMCombine2To1; + } + } + if (v->OutputFormat[k] == dm_420 && v->HActive[k] > DCN30_MAX_FMT_420_BUFFER_WIDTH + && v->ODMCombineEnablePerState[i][k] != dm_odm_combine_mode_4to1) { + if (v->HActive[k] / 2 > DCN30_MAX_FMT_420_BUFFER_WIDTH) { + v->ODMCombineEnablePerState[i][k] = dm_odm_combine_mode_4to1; + v->PlaneRequiredDISPCLK = v->PlaneRequiredDISPCLKWithODMCombine4To1; + } else { v->ODMCombineEnablePerState[i][k] = dm_odm_combine_mode_2to1; v->PlaneRequiredDISPCLK = v->PlaneRequiredDISPCLKWithODMCombine2To1; } } - if (v->ODMCombineEnablePerState[i][k] == dm_odm_combine_mode_4to1) { v->MPCCombine[i][j][k] = false; v->NoOfDPP[i][j][k] = 4; @@ -4281,42 +4293,8 @@ void dml30_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_l } } - for (i = 0; i < v->soc.num_states; i++) { - v->DSCCLKRequiredMoreThanSupported[i] = false; - for (k = 0; k <= v->NumberOfActivePlanes - 1; k++) { - if (v->BlendingAndTiming[k] == k) { - if (v->Output[k] == dm_dp || v->Output[k] == dm_edp) { - if (v->OutputFormat[k] == dm_420) { - v->DSCFormatFactor = 2; - } else if (v->OutputFormat[k] == dm_444) { - v->DSCFormatFactor = 1; - } else if (v->OutputFormat[k] == dm_n422) { - v->DSCFormatFactor = 2; - } else { - v->DSCFormatFactor = 1; - } - if (v->RequiresDSC[i][k] == true) { - if (v->ODMCombineEnablePerState[i][k] == dm_odm_combine_mode_4to1) { - if (v->PixelClockBackEnd[k] / 12.0 / v->DSCFormatFactor - > (1.0 - v->DISPCLKDPPCLKDSCCLKDownSpreading / 100.0) * v->MaxDSCCLK[i]) { - v->DSCCLKRequiredMoreThanSupported[i] = true; - } - } else if (v->ODMCombineEnablePerState[i][k] == dm_odm_combine_mode_2to1) { - if (v->PixelClockBackEnd[k] / 6.0 / v->DSCFormatFactor - > (1.0 - v->DISPCLKDPPCLKDSCCLKDownSpreading / 100.0) * v->MaxDSCCLK[i]) { - v->DSCCLKRequiredMoreThanSupported[i] = true; - } - } else { - if (v->PixelClockBackEnd[k] / 3.0 / v->DSCFormatFactor - > (1.0 - v->DISPCLKDPPCLKDSCCLKDownSpreading / 100.0) * v->MaxDSCCLK[i]) { - v->DSCCLKRequiredMoreThanSupported[i] = true; - } - } - } - } - } - } - } + /* Skip dscclk validation: as long as dispclk is supported, dscclk is also implicitly supported */ + for (i = 0; i < v->soc.num_states; i++) { v->NotEnoughDSCUnits[i] = false; v->TotalDSCUnitsRequired = 0.0; @@ -5319,7 +5297,7 @@ void dml30_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_l for (j = 0; j < 2; j++) { if (v->ScaleRatioAndTapsSupport == 1 && v->SourceFormatPixelAndScanSupport == 1 && v->ViewportSizeSupport[i][j] == 1 && v->DIOSupport[i] == 1 && v->ODMCombine4To1SupportCheckOK[i] == 1 - && v->NotEnoughDSCUnits[i] == 0 && v->DSCCLKRequiredMoreThanSupported[i] == 0 + && v->NotEnoughDSCUnits[i] == 0 && v->DTBCLKRequiredMoreThanSupported[i] == 0 && v->ROBSupport[i][j] == 1 && v->DISPCLK_DPPCLK_Support[i][j] == 1 && v->TotalAvailablePipesSupport[i][j] == 1 && EnoughWritebackUnits == 1 && WritebackModeSupport == 1 -- 2.30.2