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 X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7BE20C11F69 for ; Wed, 14 Jul 2021 03:16:21 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 51120613AA for ; Wed, 14 Jul 2021 03:16:21 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 51120613AA Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 1679E6E19B; Wed, 14 Jul 2021 03:16:05 +0000 (UTC) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id 03D886E167 for ; Wed, 14 Jul 2021 03:15:58 +0000 (UTC) X-IronPort-AV: E=McAfee;i="6200,9189,10044"; a="232085875" X-IronPort-AV: E=Sophos;i="5.84,238,1620716400"; d="scan'208";a="232085875" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Jul 2021 20:15:58 -0700 X-IronPort-AV: E=Sophos;i="5.84,238,1620716400"; d="scan'208";a="494031577" Received: from mdroper-desk1.fm.intel.com ([10.1.27.134]) by orsmga001-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Jul 2021 20:15:58 -0700 From: Matt Roper To: intel-gfx@lists.freedesktop.org Date: Tue, 13 Jul 2021 20:15:28 -0700 Message-Id: <20210714031540.3539704-39-matthew.d.roper@intel.com> X-Mailer: git-send-email 2.25.4 In-Reply-To: <20210714031540.3539704-1-matthew.d.roper@intel.com> References: <20210714031540.3539704-1-matthew.d.roper@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v2 38/50] drm/i915/dg2: Don't program BW_BUDDY registers 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Although the BW_BUDDY registers still exist, they are not used for anything on DG2. This change is expected to hold true for future dgpu's too. Bspec: 49218 Signed-off-by: Matt Roper --- drivers/gpu/drm/i915/display/intel_display_power.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c index 04af987f3324..9593c517a321 100644 --- a/drivers/gpu/drm/i915/display/intel_display_power.c +++ b/drivers/gpu/drm/i915/display/intel_display_power.c @@ -5814,6 +5814,10 @@ static void tgl_bw_buddy_init(struct drm_i915_private *dev_priv) unsigned long abox_mask = INTEL_INFO(dev_priv)->abox_mask; int config, i; + /* BW_BUDDY registers are not used on dgpu's beyond DG1 */ + if (IS_DGFX(dev_priv) && !IS_DG1(dev_priv)) + return; + if (IS_ALDERLAKE_S(dev_priv) || IS_DG1_REVID(dev_priv, DG1_REVID_A0, DG1_REVID_A0) || IS_TGL_DISPLAY_STEP(dev_priv, STEP_A0, STEP_B0)) -- 2.25.4 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx