From patchwork Wed Jan 28 12:43:26 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mika Kuoppala X-Patchwork-Id: 5728151 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 7259CBF6C3 for ; Wed, 28 Jan 2015 12:43:36 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id ABA232025A for ; Wed, 28 Jan 2015 12:43:35 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id F38F920251 for ; Wed, 28 Jan 2015 12:43:34 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 9E92C6E6A0; Wed, 28 Jan 2015 04:43:33 -0800 (PST) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTP id 4077D6E69F for ; Wed, 28 Jan 2015 04:43:32 -0800 (PST) Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga102.jf.intel.com with ESMTP; 28 Jan 2015 04:40:16 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.09,480,1418112000"; d="scan'208";a="643813157" Received: from rosetta.fi.intel.com (HELO rosetta) ([10.237.72.102]) by orsmga001.jf.intel.com with ESMTP; 28 Jan 2015 04:43:30 -0800 Received: by rosetta (Postfix, from userid 1000) id CC25580054; Wed, 28 Jan 2015 14:43:28 +0200 (EET) From: Mika Kuoppala To: intel-gfx@lists.freedesktop.org Date: Wed, 28 Jan 2015 14:43:26 +0200 Message-Id: <1422449006-4028-3-git-send-email-mika.kuoppala@intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1422449006-4028-1-git-send-email-mika.kuoppala@intel.com> References: <1422449006-4028-1-git-send-email-mika.kuoppala@intel.com> Subject: [Intel-gfx] [PATCH 3/3] drm/i915: Do only one posting read on forcewake get sequence X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.18 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-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Follow the same semantics as in put side where we go through all domains before doing posting read. Cc: Chris Wilson Signed-off-by: Mika Kuoppala Tested-By: PRC QA PRTS (Patch Regression Test System Contact: shuang.he@intel.com) --- drivers/gpu/drm/i915/intel_uncore.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c index ebd9068..d2423e6 100644 --- a/drivers/gpu/drm/i915/intel_uncore.c +++ b/drivers/gpu/drm/i915/intel_uncore.c @@ -144,9 +144,10 @@ fw_domains_get(struct drm_i915_private *dev_priv, enum forcewake_domains fw_doma for_each_fw_domain_mask(d, fw_domains, dev_priv, id) { fw_domain_wait_ack_clear(d); fw_domain_get(d); - fw_domain_posting_read(d); fw_domain_wait_ack(d); } + + fw_domains_posting_read(dev_priv); } static void