From patchwork Wed Oct 17 00:17:16 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniele Ceraolo Spurio X-Patchwork-Id: 10644469 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A947913B0 for ; Wed, 17 Oct 2018 00:18:09 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9A8F42A5CB for ; Wed, 17 Oct 2018 00:18:09 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8EE492A5E3; Wed, 17 Oct 2018 00:18:09 +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=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, 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 54BD42A5CB for ; Wed, 17 Oct 2018 00:18:09 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id AD6A36E2DD; Wed, 17 Oct 2018 00:18:08 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by gabe.freedesktop.org (Postfix) with ESMTPS id D12366E2DD for ; Wed, 17 Oct 2018 00:18:07 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 16 Oct 2018 17:18:07 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,389,1534834800"; d="scan'208";a="95835809" Received: from relo-linux-1.fm.intel.com ([10.1.27.112]) by fmsmga002.fm.intel.com with ESMTP; 16 Oct 2018 17:18:07 -0700 From: Daniele Ceraolo Spurio To: intel-gfx@lists.freedesktop.org Date: Tue, 16 Oct 2018 17:17:16 -0700 Message-Id: <20181017001718.11511-2-daniele.ceraolospurio@intel.com> X-Mailer: git-send-email 2.19.0 In-Reply-To: <20181017001718.11511-1-daniele.ceraolospurio@intel.com> References: <20181017001718.11511-1-daniele.ceraolospurio@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 2/4] drm/i915/guc: reserve the doorbell before selecting the cacheline 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: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Cacheline selection is only needed if we actually manage to reserve a doorbell. Cc: Michal Wajdeczko Signed-off-by: Daniele Ceraolo Spurio Reviewed-by: Michal Wajdeczko --- drivers/gpu/drm/i915/intel_guc_submission.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_guc_submission.c b/drivers/gpu/drm/i915/intel_guc_submission.c index b089e5283307..8c3b5a9facee 100644 --- a/drivers/gpu/drm/i915/intel_guc_submission.c +++ b/drivers/gpu/drm/i915/intel_guc_submission.c @@ -955,6 +955,10 @@ guc_client_alloc(struct drm_i915_private *dev_priv, } client->vaddr = vaddr; + ret = reserve_doorbell(client); + if (ret) + goto err_vaddr; + client->doorbell_offset = __select_cacheline(guc); /* @@ -967,10 +971,6 @@ guc_client_alloc(struct drm_i915_private *dev_priv, else client->proc_desc_offset = (GUC_DB_SIZE / 2); - ret = reserve_doorbell(client); - if (ret) - goto err_vaddr; - DRM_DEBUG_DRIVER("new priority %u client %p for engine(s) 0x%x: stage_id %u\n", priority, client, client->engines, client->stage_id); DRM_DEBUG_DRIVER("doorbell id %u, cacheline offset 0x%lx\n",