From patchwork Thu Jul 19 08:35:41 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Bartminski, Jakub" X-Patchwork-Id: 10533863 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 42FE0603B5 for ; Thu, 19 Jul 2018 08:38:09 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2D39929518 for ; Thu, 19 Jul 2018 08:38:09 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 217C529524; Thu, 19 Jul 2018 08:38:09 +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 DE46D29518 for ; Thu, 19 Jul 2018 08:38:08 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id F3A7F6ED4D; Thu, 19 Jul 2018 08:38:05 +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 E51896ED41 for ; Thu, 19 Jul 2018 08:37:58 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga007.jf.intel.com ([10.7.209.58]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 19 Jul 2018 01:37:58 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.51,374,1526367600"; d="scan'208";a="57713588" Received: from jbartmin-desk.igk.intel.com ([172.28.181.141]) by orsmga007.jf.intel.com with ESMTP; 19 Jul 2018 01:36:00 -0700 From: =?UTF-8?q?Jakub=20Bartmi=C5=84ski?= To: intel-gfx@lists.freedesktop.org Date: Thu, 19 Jul 2018 10:35:41 +0200 Message-Id: <20180719083542.22220-4-jakub.bartminski@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20180719083542.22220-1-jakub.bartminski@intel.com> References: <20180719083542.22220-1-jakub.bartminski@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v3 4/5] drm/i915: Add a fault injection point after WOPCM init 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 Signed-off-by: Jakub Bartmiński Cc: Chris Wilson Cc: Michał Winiarski Cc: Michal Wajdeczko --- drivers/gpu/drm/i915/i915_gem.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index ed2be33ec58a..dd170a293d05 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -5475,6 +5475,11 @@ int i915_gem_init(struct drm_i915_private *dev_priv) if (ret) goto err_uc_misc; + if (i915_inject_load_failure()) { + ret = -E2BIG; + goto err_uc_misc; + } + /* This is just a security blanket to placate dragons. * On some systems, we very sporadically observe that the first TLBs * used by the CS may be stale, despite us poking the TLB reset. If