From patchwork Wed Dec 13 12:50:45 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Micha=C5=82_Winiarski?= X-Patchwork-Id: 10109879 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 731C160327 for ; Wed, 13 Dec 2017 12:54:34 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6904A28897 for ; Wed, 13 Dec 2017 12:54:34 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5CC4928F22; Wed, 13 Dec 2017 12:54:34 +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 D514128897 for ; Wed, 13 Dec 2017 12:54:33 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 6F72E6E4B6; Wed, 13 Dec 2017 12:54:33 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by gabe.freedesktop.org (Postfix) with ESMTPS id DF0036E4B6 for ; Wed, 13 Dec 2017 12:54:31 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga103.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 13 Dec 2017 04:54:31 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.45,397,1508828400"; d="scan'208";a="2080135" Received: from irsmsx102.ger.corp.intel.com ([163.33.3.155]) by fmsmga007.fm.intel.com with ESMTP; 13 Dec 2017 04:54:30 -0800 Received: from localhost (172.28.172.64) by IRSMSX102.ger.corp.intel.com (163.33.3.155) with Microsoft SMTP Server (TLS) id 14.3.319.2; Wed, 13 Dec 2017 12:54:30 +0000 From: =?UTF-8?q?Micha=C5=82=20Winiarski?= To: Date: Wed, 13 Dec 2017 13:50:45 +0100 Message-ID: <20171213125046.1735-7-michal.winiarski@intel.com> X-Mailer: git-send-email 2.14.3 In-Reply-To: <20171213125046.1735-1-michal.winiarski@intel.com> References: <20171213125046.1735-1-michal.winiarski@intel.com> MIME-Version: 1.0 X-Originating-IP: [172.28.172.64] Subject: [Intel-gfx] [PATCH 7/8] drm/i915/guc: Extract doorbell verification into a function 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: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP We have the selftest that's checking doorbell create/destroy, so there's no need to check all doorbells delaying the reset every time. We do want to have that extra sanity check at module load/unload though. Signed-off-by: Michał Winiarski Cc: Chris Wilson Cc: Joonas Lahtinen Cc: Michal Wajdeczko Reviewed-by: Michal Wajdeczko Reviewed-by: Michel Thierry --- drivers/gpu/drm/i915/intel_guc_submission.c | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_guc_submission.c b/drivers/gpu/drm/i915/intel_guc_submission.c index 488110602e7e..4d2409466a3a 100644 --- a/drivers/gpu/drm/i915/intel_guc_submission.c +++ b/drivers/gpu/drm/i915/intel_guc_submission.c @@ -820,9 +820,19 @@ static bool doorbell_ok(struct intel_guc *guc, u16 db_id) return false; } -static int guc_clients_doorbell_init(struct intel_guc *guc) +static bool guc_verify_doorbells(struct intel_guc *guc) { u16 db_id; + + for (db_id = 0; db_id < GUC_NUM_DOORBELLS; ++db_id) + if (!doorbell_ok(guc, db_id)) + return false; + + return true; +} + +static int guc_clients_doorbell_init(struct intel_guc *guc) +{ int ret; ret = create_doorbell(guc->execbuf_client); @@ -835,10 +845,6 @@ static int guc_clients_doorbell_init(struct intel_guc *guc) return ret; } - /* Read back & verify all (used & unused) doorbell registers */ - for (db_id = 0; db_id < GUC_NUM_DOORBELLS; ++db_id) - WARN_ON(!doorbell_ok(guc, db_id)); - return 0; } @@ -1149,6 +1155,7 @@ int intel_guc_submission_init(struct intel_guc *guc) goto err_log; GEM_BUG_ON(!guc->ads_vma); + WARN_ON(!guc_verify_doorbells(guc)); ret = guc_clients_create(guc); if (ret) return ret; @@ -1177,6 +1184,8 @@ void intel_guc_submission_fini(struct intel_guc *guc) cancel_work_sync(&guc->preempt_work[id].work); guc_clients_destroy(guc); + WARN_ON(!guc_verify_doorbells(guc)); + guc_ads_destroy(guc); intel_guc_log_destroy(guc); guc_stage_desc_pool_destroy(guc);