From patchwork Thu Apr 5 22:29:04 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: oscar.mateo@intel.com X-Patchwork-Id: 10325541 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 960EE60208 for ; Thu, 5 Apr 2018 22:29:29 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 76C1A2940A for ; Thu, 5 Apr 2018 22:29:29 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6BC532940C; Thu, 5 Apr 2018 22:29:29 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 313A72940A for ; Thu, 5 Apr 2018 22:29:29 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 5A9BB6E907; Thu, 5 Apr 2018 22:29:26 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id 23F026E8DD for ; Thu, 5 Apr 2018 22:29:20 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 05 Apr 2018 15:29:19 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.48,412,1517904000"; d="scan'208";a="31397577" Received: from omateolo-linux.sc.intel.com ([10.3.229.22]) by orsmga008.jf.intel.com with ESMTP; 05 Apr 2018 15:29:19 -0700 From: Oscar Mateo To: intel-gfx@lists.freedesktop.org Date: Thu, 5 Apr 2018 15:29:04 -0700 Message-Id: <1522967348-27293-10-git-send-email-oscar.mateo@intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1522967348-27293-1-git-send-email-oscar.mateo@intel.com> References: <1522967348-27293-1-git-send-email-oscar.mateo@intel.com> Subject: [Intel-gfx] [PATCH 10/14] drm/i915/icl: WaAllowUMDToModifyHalfSliceChicken2 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" X-Virus-Scanned: ClamAV using ClamSMTP Required to dinamically set 'Small PL Lossless Fix Enable' Do Linux UMDs make use of this? This change has been security reviewed and the whitelisting approved. Virtualization of other OSes could certainly use it. Cc: Mika Kuoppala Signed-off-by: Oscar Mateo --- drivers/gpu/drm/i915/intel_engine_cs.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c index ee16b88..f092c0f 100644 --- a/drivers/gpu/drm/i915/intel_engine_cs.c +++ b/drivers/gpu/drm/i915/intel_engine_cs.c @@ -1409,6 +1409,11 @@ static int kbl_init_workarounds(struct intel_engine_cs *engine) if (ret) return ret; + /* WaAllowUMDToModifyHalfSliceChicken2:icl */ + ret = wa_ring_whitelist_reg(engine, HALF_SLICE_CHICKEN2); + if (ret) + return ret; + return 0; }