From patchwork Thu May 4 15:35:04 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 13231355 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 30E24C7EE23 for ; Thu, 4 May 2023 15:35:38 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D346510E501; Thu, 4 May 2023 15:35:19 +0000 (UTC) Received: from mail-lf1-x132.google.com (mail-lf1-x132.google.com [IPv6:2a00:1450:4864:20::132]) by gabe.freedesktop.org (Postfix) with ESMTPS id AE48510E4EE for ; Thu, 4 May 2023 15:35:16 +0000 (UTC) Received: by mail-lf1-x132.google.com with SMTP id 2adb3069b0e04-4eff4ea8e39so763167e87.1 for ; Thu, 04 May 2023 08:35:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1683214513; x=1685806513; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=FBAkVdbh6cPTMjC6o2ySkEa6jNcEcZVNqgzdILUk71Q=; b=kuGjp8WJqb156vWq9KYozdF2ICKDv59WBzHoA1Yhd7B/McpBPIiyihBmIRYGjHWi9C /ZL0/gnN925t5cNEmP6MX0dfmMwxR+WXOFSmJTVh/31Ff5D4WpZxRIj1p4Y6aQTi8Arq XOSKIRsBMf4X1Udqo+gS/QOhGodkJnvNzmyQMpY1XzW0X44pV5Xxn7G8krv1jJBywSOO sjn/sTz2KD4dUXNRXlPOV9RnqIX57miZhWFHV0CWi/MtF4CgYWOuu095r7agRb03pOVh vrIoGg3Tjh2jyJ73/v9ERlUU9wqLkh3tfX6qiyTjpsg08waNXPC22SUhDtasukBv5C9g dugg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1683214513; x=1685806513; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=FBAkVdbh6cPTMjC6o2ySkEa6jNcEcZVNqgzdILUk71Q=; b=BJEV0K7/DLCXQ2gLXspuoPE2p3sZ5RDH/+aEAUm7SA3T9z87E9Lza5nq/4xa/Wmcsc TERF7AOMjRu+RtrrRRT9mtAfC7R42XaxMD5GQ1Iq2qLWk8Y28kfdIBwmIoiz27x2BM3U QE7UFoWiWhKO03ZPXjQUhZdzVVg7uSeKa7WFUbmBr0bHhd3iQNFca+tJcMLOQweHeMB8 ywvwVcfqcUAb0XWvibRpLjlrsouBC8G2rWkS99/Tno+sKJrN8w+2PkW7KWLcrcih7gHy WWfq2fl+DEB8CzOYt4MxqLC9yFwb44wd0/2mkgOGfjMwt3bHpzeRjIKJbQ6Z3gJGhuzm cRFQ== X-Gm-Message-State: AC+VfDwjhv//ZDsa0dGR3lJKRNVtB42UOUZ6kXZBggRP3cFSrumKMz+3 jRaEUMu6TrjmiwdP1XkEcCjN+A== X-Google-Smtp-Source: ACHHUZ7pbgVpeItgsgTWrr7j4GHpJ26O3Im17Eentb07XCPlPGNXVMYcTsMCkutx+R140DReJHKV0Q== X-Received: by 2002:a05:6512:38b1:b0:4ec:a9c5:f3ae with SMTP id o17-20020a05651238b100b004eca9c5f3aemr1803768lft.11.1683214512950; Thu, 04 May 2023 08:35:12 -0700 (PDT) Received: from eriador.lan (dzdqv0yyyyyyyyyyybcwt-3.rev.dnainternet.fi. [2001:14ba:a0db:1f00::8a5]) by smtp.gmail.com with ESMTPSA id n15-20020a056512388f00b004e96afb1e9asm6608753lft.253.2023.05.04.08.35.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 04 May 2023 08:35:12 -0700 (PDT) From: Dmitry Baryshkov To: David Airlie , Daniel Vetter , Jani Nikula , Suraj Kandpal , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin , Rob Clark , Abhinav Kumar , Sean Paul , Marijn Suijten Date: Thu, 4 May 2023 18:35:04 +0300 Message-Id: <20230504153511.4007320-2-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230504153511.4007320-1-dmitry.baryshkov@linaro.org> References: <20230504153511.4007320-1-dmitry.baryshkov@linaro.org> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v5 1/8] drm/i915/dsc: change DSC param tables to follow the DSC model X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jani Nikula , linux-arm-msm@vger.kernel.org, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" After cross-checking DSC models (20150914, 20161212, 20210623) change values in rc_parameters tables to follow config files present inside the DSC model. Handle two places, where i915 tables diverged from the model, by patching the rc values in the code. Note: I left one case uncorrected, 8bpp/10bpc/range_max_qp[0], because the table in the VESA DSC 1.1 sets it to 4. Reviewed-by: Jani Nikula Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/i915/display/intel_vdsc.c | 22 ++++++++++++++++++++-- 1 file changed, 20 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_vdsc.c b/drivers/gpu/drm/i915/display/intel_vdsc.c index 8e787c13d26d..7003ae9f683a 100644 --- a/drivers/gpu/drm/i915/display/intel_vdsc.c +++ b/drivers/gpu/drm/i915/display/intel_vdsc.c @@ -87,7 +87,7 @@ static const struct rc_parameters rc_parameters[][MAX_COLUMN_INDEX] = { } }, /* 6BPP/14BPC */ - { 768, 15, 6144, 15, 25, 23, 27, { + { 768, 15, 6144, 15, 25, 23, 23, { { 0, 16, 0 }, { 7, 18, -2 }, { 15, 20, -2 }, { 16, 20, -4 }, { 17, 21, -6 }, { 17, 21, -6 }, { 18, 21, -6 }, { 18, 22, -8 }, { 19, 23, -8 }, { 20, 24, -10 }, { 21, 24, -10 }, @@ -116,6 +116,10 @@ static const struct rc_parameters rc_parameters[][MAX_COLUMN_INDEX] = { }, /* 8BPP/10BPC */ { 512, 12, 6144, 7, 16, 15, 15, { + /* + * DSC model/pre-SCR-cfg has 8 for range_max_qp[0], however + * VESA DSC 1.1 Table E-5 sets it to 4. + */ { 0, 4, 2 }, { 4, 8, 0 }, { 5, 9, 0 }, { 5, 10, -2 }, { 7, 11, -4 }, { 7, 11, -6 }, { 7, 11, -8 }, { 7, 12, -8 }, { 7, 13, -8 }, { 7, 14, -10 }, { 9, 15, -10 }, { 9, 16, -12 }, @@ -133,7 +137,7 @@ static const struct rc_parameters rc_parameters[][MAX_COLUMN_INDEX] = { }, /* 8BPP/14BPC */ { 512, 12, 6144, 15, 24, 23, 23, { - { 0, 12, 0 }, { 5, 13, 0 }, { 11, 15, 0 }, { 12, 17, -2 }, + { 0, 12, 2 }, { 5, 13, 0 }, { 11, 15, 0 }, { 12, 17, -2 }, { 15, 19, -4 }, { 15, 19, -6 }, { 15, 19, -8 }, { 15, 20, -8 }, { 15, 21, -8 }, { 15, 22, -10 }, { 17, 22, -10 }, { 17, 23, -12 }, { 17, 23, -12 }, { 21, 24, -12 }, @@ -598,6 +602,20 @@ int intel_dsc_compute_params(struct intel_crtc_state *pipe_config) DSC_RANGE_BPG_OFFSET_MASK; } + if (DISPLAY_VER(dev_priv) < 13) { + /* + * FIXME: verify that the hardware actually needs these + * modifications rather than them being simple typos. + */ + if (compressed_bpp == 6 && + vdsc_cfg->bits_per_component == 8) + vdsc_cfg->rc_quant_incr_limit1 = 23; + + if (compressed_bpp == 8 && + vdsc_cfg->bits_per_component == 14) + vdsc_cfg->rc_range_params[0].range_bpg_offset = 0; + } + /* * BitsPerComponent value determines mux_word_size: * When BitsPerComponent is less than or 10bpc, muxWordSize will be equal to