From patchwork Thu Jun 21 08:01:50 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Wilson X-Patchwork-Id: 10479381 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 A9CFF60230 for ; Thu, 21 Jun 2018 08:02:35 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 87C622906F for ; Thu, 21 Jun 2018 08:02:35 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8604929107; Thu, 21 Jun 2018 08:02:35 +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 2B4A6290EA for ; Thu, 21 Jun 2018 08:02:32 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id DF4876E5E6; Thu, 21 Jun 2018 08:02:30 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from fireflyinternet.com (mail.fireflyinternet.com [109.228.58.192]) by gabe.freedesktop.org (Postfix) with ESMTPS id 234596E5E6 for ; Thu, 21 Jun 2018 08:02:28 +0000 (UTC) X-Default-Received-SPF: pass (skip=forwardok (res=PASS)) x-ip-name=78.156.65.138; Received: from haswell.alporthouse.com (unverified [78.156.65.138]) by fireflyinternet.com (Firefly Internet (M1)) with ESMTP id 12112363-1500050 for multiple; Thu, 21 Jun 2018 09:01:51 +0100 Received: by haswell.alporthouse.com (sSMTP sendmail emulation); Thu, 21 Jun 2018 09:01:51 +0100 From: Chris Wilson To: intel-gfx@lists.freedesktop.org Date: Thu, 21 Jun 2018 09:01:50 +0100 Message-Id: <20180621080150.8110-1-chris@chris-wilson.co.uk> X-Mailer: git-send-email 2.18.0.rc2 X-Originating-IP: 78.156.65.138 X-Country: code=GB country="United Kingdom" ip=78.156.65.138 Subject: [Intel-gfx] [PATCH] drm/i915: Redefine EINVAL for debugging 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: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP To aide debugging spurious EINVALs, include a debug message every time we emit one from execbuf. References: https://bugs.freedesktop.org/show_bug.cgi?id=106744 Signed-off-by: Chris Wilson Cc: Joonas Lahtinen Reviewed-by: Joonas Lahtinen --- drivers/gpu/drm/i915/i915_gem_execbuffer.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c index 437441f4af41..c2dd9b4cdace 100644 --- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c @@ -66,6 +66,15 @@ enum { #define __I915_EXEC_ILLEGAL_FLAGS \ (__I915_EXEC_UNKNOWN_FLAGS | I915_EXEC_CONSTANTS_MASK) +/* Catch emission of unexpected errors for CI! */ +#if IS_ENABLED(CONFIG_DRM_I915_DEBUG_GEM) +#undef EINVAL +#define EINVAL ({ \ + DRM_DEBUG_DRIVER("EINVAL at %s:%d\n", __func__, __LINE__); \ + 22; \ +}) +#endif + /** * DOC: User command execution *