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 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 C0E0CC7EE2E for ; Thu, 1 Jun 2023 16:05:13 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 4294710E581; Thu, 1 Jun 2023 16:05:13 +0000 (UTC) Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTPS id 240BB10E580 for ; Thu, 1 Jun 2023 16:05:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1685635512; x=1717171512; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=p8Diu7wJvA1Zw8sv4HsHEvjH8ejD5ov2eUbJduRJN4A=; b=WhjMlXA3NQto7YKUVfWTUzWSfjWrURrYdioCBe47GmU8gGFm81g4mdph k5wxl160WxvpdYWGwlQ/8KHIfj2SH6zI6iz2vXIHURNirFZhDyFNhhDfP sGguTL45JtxAlzojFDRumd7HSrGb9slgt9LWGHUFAILP5F0bncpnHL1MO w0UTujkuK27yjFFer0MVWAKkm3OQ50+zp+++CV8Vi2FPpf/os9xmz4A7g FmpvUZJnr1NPyBeC8Njk3AEeaD0H6eIjOXHoFXlEnyrLQZnDKP2+uAOZ1 SHB8Ub6+nrDSXdhuZEC7T7DvvDTZpXYu3yHlp3IlwmS0jrFGML2p4Y+/4 g==; X-IronPort-AV: E=McAfee;i="6600,9927,10728"; a="358024912" X-IronPort-AV: E=Sophos;i="6.00,210,1681196400"; d="scan'208";a="358024912" Received: from orsmga007.jf.intel.com ([10.7.209.58]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Jun 2023 09:04:16 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10728"; a="701608530" X-IronPort-AV: E=Sophos;i="6.00,210,1681196400"; d="scan'208";a="701608530" Received: from unknown (HELO vgovind2-mobl3.fi.intel.com) ([10.237.66.43]) by orsmga007-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Jun 2023 09:04:14 -0700 From: Vinod Govindapillai To: intel-gfx@lists.freedesktop.org Date: Thu, 1 Jun 2023 19:03:46 +0300 Message-Id: <20230601160350.43888-4-vinod.govindapillai@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230601160350.43888-1-vinod.govindapillai@intel.com> References: <20230601160350.43888-1-vinod.govindapillai@intel.com> MIME-Version: 1.0 Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo Content-Transfer-Encoding: 8bit Subject: [Intel-gfx] [PATCH v12 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: , 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 2209811eb29e..dd8e08c8598f 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; -- 2.34.1