From patchwork Wed Jun 8 10:55:26 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dave Gordon X-Patchwork-Id: 9164255 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 768BF60572 for ; Wed, 8 Jun 2016 10:55:47 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 686DD206AC for ; Wed, 8 Jun 2016 10:55:47 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5CEA228047; Wed, 8 Jun 2016 10:55:47 +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]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CF674206AC for ; Wed, 8 Jun 2016 10:55:46 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C4B816E987; Wed, 8 Jun 2016 10:55:44 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTP id 22BE06E97B for ; Wed, 8 Jun 2016 10:55:37 +0000 (UTC) Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga101.jf.intel.com with ESMTP; 08 Jun 2016 03:55:37 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.26,438,1459839600"; d="scan'208";a="715806192" Received: from dsgordon-linux2.isw.intel.com ([10.102.226.88]) by FMSMGA003.fm.intel.com with ESMTP; 08 Jun 2016 03:55:36 -0700 From: Dave Gordon To: intel-gfx@lists.freedesktop.org Date: Wed, 8 Jun 2016 11:55:26 +0100 Message-Id: <1465383329-14885-2-git-send-email-david.s.gordon@intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1465383329-14885-1-git-send-email-david.s.gordon@intel.com> References: <1465383329-14885-1-git-send-email-david.s.gordon@intel.com> Organization: Intel Corporation (UK) Ltd. - Co. Reg. #1134945 - Pipers Way, Swindon SN3 1RJ Subject: [Intel-gfx] [PATCH 1/4] drm/i915/guc: add doorbell map to debugfs/i915_guc_info 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-Virus-Scanned: ClamAV using ClamSMTP To properly verify the driver->doorbell->GuC functionality, validation needs to know how the driver has assigned the doorbell cache lines and registers, so make them visible through debugfs. Signed-off-by: Dave Gordon --- drivers/gpu/drm/i915/i915_debugfs.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index e4f2c55..fbb4b16 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -2560,6 +2560,7 @@ static int i915_guc_info(struct seq_file *m, void *data) struct i915_guc_client client = {}; struct intel_engine_cs *engine; u64 total = 0; + int i; if (!HAS_GUC_SCHED(dev_priv)) return 0; @@ -2574,6 +2575,14 @@ static int i915_guc_info(struct seq_file *m, void *data) mutex_unlock(&dev->struct_mutex); + seq_printf(m, "Doorbell map:\n"); + BUILD_BUG_ON(ARRAY_SIZE(guc.doorbell_bitmap) % 4); + for (i = 0; i < ARRAY_SIZE(guc.doorbell_bitmap) - 3; i += 4) + seq_printf(m, "\t%016lx %016lx %016lx %016lx\n", + guc.doorbell_bitmap[i], guc.doorbell_bitmap[i+1], + guc.doorbell_bitmap[i+2], guc.doorbell_bitmap[i+3]); + seq_printf(m, "Doorbell next cacheline: 0x%x\n\n", guc.db_cacheline); + seq_printf(m, "GuC total action count: %llu\n", guc.action_count); seq_printf(m, "GuC action failure count: %u\n", guc.action_fail); seq_printf(m, "GuC last action command: 0x%x\n", guc.action_cmd);