From patchwork Thu Apr 27 14:25:59 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Govindapillai, Vinod" X-Patchwork-Id: 13225519 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 63D54C77B61 for ; Thu, 27 Apr 2023 14:26:32 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D562810E314; Thu, 27 Apr 2023 14:26:30 +0000 (UTC) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id 835AB10E386 for ; Thu, 27 Apr 2023 14:26:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1682605586; x=1714141586; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=sWpK/PcXrHQnLMWkeGWt6YkMkv7Fu4Mmu9aXVj9mVFI=; b=gDl83XVvd4kMzPya7Ksl7YJFLWSB3Y812IZ7urByJmUJcDQA4ICKw+rq vzPXMiTrhWBV0q1w86GVi8Yh5NREWKVKRnfo3RZJa9ywE47SxiSssRFQU M+zvr9GiEb0FOOSL1kaOaBLLplt2t0qjTTNLdPu2Qt2YgTscqx/qClVAn bmISLEwKqtVH48I/OE9QrB91sHwkC80d/vxCQP8MfUJhhECdQJ1yHHHJd A2DxXrONJ49o2m5/cfaG06J0JOmp/Pf1zyIo4r0bt+Ln6GwlwsEIzggiL CdEFKoH5Z70fa+Aq9FqE2bS8QfYgQr2yU8uyT9Q8Gi3I12WfvcQEyPI/f A==; X-IronPort-AV: E=McAfee;i="6600,9927,10693"; a="375438579" X-IronPort-AV: E=Sophos;i="5.99,230,1677571200"; d="scan'208";a="375438579" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Apr 2023 07:26:26 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10693"; a="838403625" X-IronPort-AV: E=Sophos;i="5.99,230,1677571200"; d="scan'208";a="838403625" 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 07:26:23 -0700 From: Vinod Govindapillai To: intel-gfx@lists.freedesktop.org Date: Thu, 27 Apr 2023 17:25:59 +0300 Message-Id: <20230427142604.1565580-4-vinod.govindapillai@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230427142604.1565580-1-vinod.govindapillai@intel.com> References: <20230427142604.1565580-1-vinod.govindapillai@intel.com> MIME-Version: 1.0 Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo Subject: [Intel-gfx] [PATCH v3 3/8] 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. Bspec: 64636 Signed-off-by: Vinod Govindapillai --- drivers/gpu/drm/i915/display/intel_bw.c | 7 +++++-- drivers/gpu/drm/i915/display/intel_display_core.h | 2 ++ 2 files changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_bw.c b/drivers/gpu/drm/i915/display/intel_bw.c index 25ae4e5834d3..f5b6cd7f83b8 100644 --- a/drivers/gpu/drm/i915/display/intel_bw.c +++ b/drivers/gpu/drm/i915/display/intel_bw.c @@ -534,10 +534,13 @@ 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] = 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;