From patchwork Fri Jan 20 23:28:28 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Harrison X-Patchwork-Id: 13110685 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E232AC25B50 for ; Fri, 20 Jan 2023 23:29:01 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id B947710EB24; Fri, 20 Jan 2023 23:28:52 +0000 (UTC) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by gabe.freedesktop.org (Postfix) with ESMTPS id 55E8710EB18; Fri, 20 Jan 2023 23:28:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1674257330; x=1705793330; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=NVEvf8IZip4KrKwtRVXqza9Zc/m5o6AsWQTg/2GrPHw=; b=jggMEiB8Pyz/zyjBfo0tA/DCyLLB2/BkzD4ZiljLqZ25LcMYA1bKWN66 k3e/su6098qIBkJoRoueAjhVHLovbCvpt+NRDMr/h9yP8wKrv4uzQWef5 ZMeX2K3efXhQsKEZfN8VnZmBMGX+R9lYXXcZSJzs51WsYvbEhMQAf0oss R16D01k0KTmHNhYy7i/8IOavz1E8uAvDLKU+l+NkbzLqJmKrCIjB1UrLA gOpfewbwtuuApDFrcSXaFZ0xXixfgtZTlL8rrCmk+pkxxBT1hAWurtpFH VPv+erqqNIaMJp+igDMnTgMTLFe9lAljiczHqrXrhOydV2/xaLkuNtiDu A==; X-IronPort-AV: E=McAfee;i="6500,9779,10596"; a="324413565" X-IronPort-AV: E=Sophos;i="5.97,233,1669104000"; d="scan'208";a="324413565" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Jan 2023 15:28:50 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10596"; a="693021618" X-IronPort-AV: E=Sophos;i="5.97,233,1669104000"; d="scan'208";a="693021618" Received: from relo-linux-5.jf.intel.com ([10.165.21.152]) by orsmga001.jf.intel.com with ESMTP; 20 Jan 2023 15:28:48 -0800 From: John.C.Harrison@Intel.com To: Intel-GFX@Lists.FreeDesktop.Org Date: Fri, 20 Jan 2023 15:28:28 -0800 Message-Id: <20230120232831.28177-5-John.C.Harrison@Intel.com> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230120232831.28177-1-John.C.Harrison@Intel.com> References: <20230120232831.28177-1-John.C.Harrison@Intel.com> MIME-Version: 1.0 Organization: Intel Corporation (UK) Ltd. - Co. Reg. #1134945 - Pipers Way, Swindon SN3 1RJ Subject: [Intel-gfx] [PATCH v4 4/7] drm/i915: Allow error capture of a pending request X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: DRI-Devel@Lists.FreeDesktop.Org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: John Harrison A hang situation has been observed where the only requests on the context were either completed or not yet started according to the breaadcrumbs. However, the register state claimed a batch was (maybe) in progress. So, allow capture of the pending request on the grounds that this might be better than nothing. v2: Reword 'not started' warning message (Tvrtko) Signed-off-by: John Harrison Reviewed-by: Tvrtko Ursulin --- drivers/gpu/drm/i915/i915_gpu_error.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c index 225f1b11a6b93..904f21e1380cd 100644 --- a/drivers/gpu/drm/i915/i915_gpu_error.c +++ b/drivers/gpu/drm/i915/i915_gpu_error.c @@ -1624,12 +1624,9 @@ capture_engine(struct intel_engine_cs *engine, return NULL; intel_engine_get_hung_entity(engine, &ce, &rq); - if (rq && !i915_request_started(rq)) { + if (rq && !i915_request_started(rq)) drm_info(&engine->gt->i915->drm, "Got hung context on %s with active request %lld:%lld [0x%04X] not yet started\n", engine->name, rq->fence.context, rq->fence.seqno, ce->guc_id.id); - i915_request_put(rq); - rq = NULL; - } if (rq) { capture = intel_engine_coredump_add_request(ee, rq, ATOMIC_MAYFAIL);