From patchwork Tue Oct 15 15:44:45 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mika Kuoppala X-Patchwork-Id: 11190811 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D141B15AB for ; Tue, 15 Oct 2019 15:46:05 +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 B93AA205F4 for ; Tue, 15 Oct 2019 15:46:05 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B93AA205F4 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.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 09CCE6E83D; Tue, 15 Oct 2019 15:46:04 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by gabe.freedesktop.org (Postfix) with ESMTPS id D051F6E836 for ; Tue, 15 Oct 2019 15:45:23 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga106.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 15 Oct 2019 08:45:23 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.67,300,1566889200"; d="scan'208";a="208203379" Received: from rosetta.fi.intel.com ([10.237.72.194]) by fmsmga001.fm.intel.com with ESMTP; 15 Oct 2019 08:45:22 -0700 Received: by rosetta.fi.intel.com (Postfix, from userid 1000) id 0D052840794; Tue, 15 Oct 2019 18:44:51 +0300 (EEST) From: Mika Kuoppala To: intel-gfx@lists.freedesktop.org Date: Tue, 15 Oct 2019 18:44:45 +0300 Message-Id: <20191015154449.10338-7-mika.kuoppala@linux.intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191015154449.10338-1-mika.kuoppala@linux.intel.com> References: <20191015154449.10338-1-mika.kuoppala@linux.intel.com> Subject: [Intel-gfx] [PATCH 07/11] drm/i915/tgl: Wa_1409170338 X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Avoid possible hang in tsg,vfe units by keeping l3 clocks runnings. Signed-off-by: Mika Kuoppala Reviewed-by: Chris Wilson --- drivers/gpu/drm/i915/gt/intel_workarounds.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c index b7d7fdc5ba90..4b7740aaf3bf 100644 --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c @@ -902,6 +902,12 @@ tgl_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal) wa_write_or(wal, SUBSLICE_UNIT_LEVEL_CLKGATE2, CPSSUNIT_CLKGATE_DIS); + + /* Wa_1409180338:tgl */ + if (IS_TGL_REVID(i915, TGL_REVID_A0, TGL_REVID_A0)) + wa_write_or(wal, + SLICE_UNIT_LEVEL_CLKGATE, + L3_CLKGATE_DIS | L3_CR2X_CLKGATE_DIS); } static void