From patchwork Wed May 24 23:03:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vinod Govindapillai X-Patchwork-Id: 13254607 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 CE66AC77B7C for ; Wed, 24 May 2023 23:04:14 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 35DC710E6A1; Wed, 24 May 2023 23:04:14 +0000 (UTC) Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by gabe.freedesktop.org (Postfix) with ESMTPS id 0091D10E6A0 for ; Wed, 24 May 2023 23:04:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1684969451; x=1716505451; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=OvKyEAjEleagGsDeTMc8Pjw5Ba9wazvQxKqZlU2eqRA=; b=QChKhFVN1kFW+y/COFOWvU8Fm96sCTMCKTKMDb17ferIb4poBteTCwsu TEPVNjfxnWTZjIC+x92q0QnFW+hR+0BXXyllr41UpkWnbNX0HJrTTP/xR VddDdKSnIS3VZFi9J2BKhWxuldFCc7WihRXGZKvciMT8eTDoC2u92ur1G uF8/ZNoXW2ewMu5sqxv9r/X3/g4GuqwOOC2q+oG0i8CfeNBppokOme5y0 z9h6BvVeoqGkr4qn7sEFBqfkMNGByNoPBs5u5+hyd5dY2BU1ydhAUZUCz Rdq3bFVkq4O21K3aTqHS3EbkRnD+BLrMdTmEJ0+QRc7//jFn4wJWNZ6gB w==; X-IronPort-AV: E=McAfee;i="6600,9927,10720"; a="338289515" X-IronPort-AV: E=Sophos;i="6.00,190,1681196400"; d="scan'208";a="338289515" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 May 2023 16:04:10 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10720"; a="951218423" X-IronPort-AV: E=Sophos;i="6.00,190,1681196400"; d="scan'208";a="951218423" Received: from peteratz-mobl.ger.corp.intel.com (HELO vgovind2-mobl3.intel.com) ([10.252.55.65]) by fmsmga006-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 May 2023 16:04:08 -0700 From: Vinod Govindapillai To: intel-gfx@lists.freedesktop.org Date: Thu, 25 May 2023 02:03:38 +0300 Message-Id: <20230524230342.411273-4-vinod.govindapillai@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230524230342.411273-1-vinod.govindapillai@intel.com> References: <20230524230342.411273-1-vinod.govindapillai@intel.com> MIME-Version: 1.0 Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo Subject: [Intel-gfx] [PATCH v8 3/7] drm/i915: store the peak bw per QGV point 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" In MTL onwards, pcode locks the GV point based on the peak BW of a QGV point. So store the peak BW of all the QGV points. v2: use DIV_ROUND_CLOSEST() for the peakBW calculation Bspec: 64636 Signed-off-by: Vinod Govindapillai Reviewed-by: Stanislav Lisovskiy --- drivers/gpu/drm/i915/display/intel_bw.c | 8 ++++++-- drivers/gpu/drm/i915/display/intel_display_core.h | 2 ++ 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_bw.c b/drivers/gpu/drm/i915/display/intel_bw.c index 61b3babf2d83..b792d307e9d5 100644 --- a/drivers/gpu/drm/i915/display/intel_bw.c +++ b/drivers/gpu/drm/i915/display/intel_bw.c @@ -534,10 +534,14 @@ static int tgl_get_bw_info(struct drm_i915_private *dev_priv, const struct intel bi->deratedbw[j] = min(maxdebw, bw * (100 - sa->derating) / 100); + bi->peakbw[j] = DIV_ROUND_CLOSEST(sp->dclk * + num_channels * + qi.channel_width, 8); drm_dbg_kms(&dev_priv->drm, - "BW%d / QGV %d: num_planes=%d deratedbw=%u\n", - i, j, bi->num_planes, bi->deratedbw[j]); + "BW%d / QGV %d: num_planes=%d deratedbw=%u peakbw: %u\n", + i, j, bi->num_planes, bi->deratedbw[j], + bi->peakbw[j]); } for (j = 0; j < qi.num_psf_points; j++) { diff --git a/drivers/gpu/drm/i915/display/intel_display_core.h b/drivers/gpu/drm/i915/display/intel_display_core.h index e36f88a39b86..9f66d734edf6 100644 --- a/drivers/gpu/drm/i915/display/intel_display_core.h +++ b/drivers/gpu/drm/i915/display/intel_display_core.h @@ -314,6 +314,8 @@ struct intel_display { unsigned int deratedbw[I915_NUM_QGV_POINTS]; /* for each PSF GV point */ unsigned int psf_bw[I915_NUM_PSF_GV_POINTS]; + /* Peak BW for each QGV point */ + unsigned int peakbw[I915_NUM_QGV_POINTS]; u8 num_qgv_points; u8 num_psf_gv_points; u8 num_planes;