From patchwork Thu Apr 27 15:00:13 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Govindapillai, Vinod" X-Patchwork-Id: 13225546 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 F08C8C77B73 for ; Thu, 27 Apr 2023 15:01:51 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 703EA10EB66; Thu, 27 Apr 2023 15:01:51 +0000 (UTC) Received: from mga06.intel.com (mga06b.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 8AFB410EB77 for ; Thu, 27 Apr 2023 15:01:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1682607708; x=1714143708; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=CDek1FFnK4azGneYijy5ZP4feHCRAPrblddD1jGIsfU=; b=QORbi2hLhvdKnrUnvZm92kxfARmH/3FFJlyq4xhSzw0bSfMOl5mhJxRU suUvy4U34bZj7g79ox9mYaRRY5vMfwoB/fn/QV4DcCpWIQ0FlJwCWVFms W9cvUObU89OlXtRSL4PzUUrfFTgA5OVIZEZR4QLY2+lCP+sPt7jRnhvWF 8gKvdS7Pw8TztLU3FyMQnrEAHrpAw8wnR1Jgg874h9KbDYPgYgzP1VoQx Nl3eIpRyGQ5xUbenUhqGUJTnhkfVUfvhY5MMo5h4ic5h7n+7cf5sl9nFt Bbc5Qr0OXTfldD5GHY9YXOUnHZTwTR5OHqMMwZ96cAPmfwpL5F1doK34x g==; X-IronPort-AV: E=McAfee;i="6600,9927,10693"; a="410521016" X-IronPort-AV: E=Sophos;i="5.99,230,1677571200"; d="scan'208";a="410521016" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Apr 2023 08:01:12 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10693"; a="838420163" X-IronPort-AV: E=Sophos;i="5.99,230,1677571200"; d="scan'208";a="838420163" Received: from jfedorov-mobl2.ccr.corp.intel.com (HELO vgovind2-mobl3.intel.com) ([10.251.216.111]) by fmsmga001-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Apr 2023 08:01:09 -0700 From: Vinod Govindapillai To: intel-gfx@lists.freedesktop.org Date: Thu, 27 Apr 2023 18:00:13 +0300 Message-Id: <20230427150016.1566833-6-vinod.govindapillai@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230427150016.1566833-1-vinod.govindapillai@intel.com> References: <20230427150016.1566833-1-vinod.govindapillai@intel.com> MIME-Version: 1.0 Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo Subject: [Intel-gfx] [PATCH v3 5/8] drm/i915: modify max_bw to return index to intel_bw_info 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: ville.syrjala@intel.com Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" MTL uses the peak BW of a QGV point to lock the required QGV point instead of the QGV index. Instead of passing the deratedbw of the selected bw_info, return the index to the selected bw_info so that either deratedbw or peakbw can be used based on the platform. v2: use idx to store index returned by max_bw_index functions Signed-off-by: Vinod Govindapillai --- drivers/gpu/drm/i915/display/intel_bw.c | 25 ++++++++++++++++--------- 1 file changed, 16 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_bw.c b/drivers/gpu/drm/i915/display/intel_bw.c index a3b8512ebe8a..a7f501131bb6 100644 --- a/drivers/gpu/drm/i915/display/intel_bw.c +++ b/drivers/gpu/drm/i915/display/intel_bw.c @@ -592,8 +592,8 @@ static void dg2_get_bw_info(struct drm_i915_private *i915) i915->display.sagv.status = I915_SAGV_NOT_CONTROLLED; } -static unsigned int icl_max_bw(struct drm_i915_private *dev_priv, - int num_planes, int qgv_point) +static unsigned int icl_max_bw_index(struct drm_i915_private *dev_priv, + int num_planes, int qgv_point) { int i; @@ -614,14 +614,14 @@ static unsigned int icl_max_bw(struct drm_i915_private *dev_priv, return UINT_MAX; if (num_planes >= bi->num_planes) - return bi->deratedbw[qgv_point]; + return i; } return 0; } -static unsigned int tgl_max_bw(struct drm_i915_private *dev_priv, - int num_planes, int qgv_point) +static unsigned int tgl_max_bw_index(struct drm_i915_private *dev_priv, + int num_planes, int qgv_point) { int i; @@ -642,10 +642,10 @@ static unsigned int tgl_max_bw(struct drm_i915_private *dev_priv, return UINT_MAX; if (num_planes <= bi->num_planes) - return bi->deratedbw[qgv_point]; + return i; } - return dev_priv->display.bw.max[0].deratedbw[qgv_point]; + return 0; } static unsigned int adl_psf_bw(struct drm_i915_private *dev_priv, @@ -822,12 +822,19 @@ static int icl_find_qgv_points(struct drm_i915_private *i915, return ret; for (i = 0; i < num_qgv_points; i++) { + unsigned int idx; unsigned int max_data_rate; if (DISPLAY_VER(i915) > 11) - max_data_rate = tgl_max_bw(i915, num_active_planes, i); + idx = tgl_max_bw_index(i915, num_active_planes, i); else - max_data_rate = icl_max_bw(i915, num_active_planes, i); + idx = icl_max_bw_index(i915, num_active_planes, i); + + if (idx > ARRAY_SIZE(i915->display.bw.max)) + continue; + + max_data_rate = i915->display.bw.max[idx].deratedbw[i]; + /* * We need to know which qgv point gives us * maximum bandwidth in order to disable SAGV