From mboxrd@z Thu Jan 1 00:00:00 1970 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 31F30EB64DA for ; Mon, 19 Jun 2023 15:22:44 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 12CB110E21D; Mon, 19 Jun 2023 15:22:44 +0000 (UTC) Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTPS id EBF2510E21C for ; Mon, 19 Jun 2023 15:22:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1687188161; x=1718724161; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=dlKpL/U1Q3C/h6d/9E0NCHvTZzIHvvZ3tSIzVkSmgCk=; b=jD2mSamSqiC6ojUbfsXc9eZo3xiCIwCXb6KWP76bcPAbf7e7YGj4loxk nAcUj9+PnrUo3nKIfY4PRaDhoUsj7eMrossQCtHsYotLioFn0fxsnW1tu VQN4qzt6svqLIq+d9KoNUfvf6F6uEDZLC46qXiDPEifQ50oHaFs0XpD+k OWEYyZWIxpYf1b8YPRIx4NqwC8s0NyzBHp3IhrLjS6A/20NNHN3qCvOFp dCtA3CMM06/W9Ke+Eg6Q0gXf8xNhx/YPKv+1h/CeAteBuGTiRlzw+/ra3 EMtpZpU85L8V4HMfXDVanGVGhSlzBNjXYJa34us9RFdj01Wp1YAg5AMUS w==; X-IronPort-AV: E=McAfee;i="6600,9927,10746"; a="349381555" X-IronPort-AV: E=Sophos;i="6.00,254,1681196400"; d="scan'208";a="349381555" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Jun 2023 08:22:41 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10746"; a="858250601" X-IronPort-AV: E=Sophos;i="6.00,254,1681196400"; d="scan'208";a="858250601" Received: from yeidelbe-mobl.ger.corp.intel.com (HELO thellstr-mobl1.intel.com) ([10.249.254.162]) by fmsmga001-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Jun 2023 08:22:40 -0700 From: =?UTF-8?q?Thomas=20Hellstr=C3=B6m?= To: intel-xe@lists.freedesktop.org Date: Mon, 19 Jun 2023 17:22:20 +0200 Message-Id: <20230619152222.11733-5-thomas.hellstrom@linux.intel.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230619152222.11733-1-thomas.hellstrom@linux.intel.com> References: <20230619152222.11733-1-thomas.hellstrom@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: [Intel-xe] [PATCH v2 4/6] drm/xe/bo: Gracefully handle errors from ttm_bo_move_accel_cleanup(). X-BeenThere: intel-xe@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Xe graphics driver List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" The function ttm_bo_move_accel_cleanup() attempts to help pipeline a move, and in doing so, needs memory allocations which may fail. Rather than failing in a state where the new resource may freed while accessed by the copy engine, sync uninterruptible and do a failsafe cleanup. v2: - Don't try to attach the signaled fence on ttm_bo_move_accel_cleanup() error. Signed-off-by: Thomas Hellström --- drivers/gpu/drm/xe/xe_bo.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/xe/xe_bo.c b/drivers/gpu/drm/xe/xe_bo.c index cfbcc071f2ef..c95fedc22fdf 100644 --- a/drivers/gpu/drm/xe/xe_bo.c +++ b/drivers/gpu/drm/xe/xe_bo.c @@ -700,6 +700,11 @@ static int xe_bo_move(struct ttm_buffer_object *ttm_bo, bool evict, if (!move_lacks_source) { ret = ttm_bo_move_accel_cleanup(ttm_bo, fence, evict, true, new_mem); + if (ret) { + dma_fence_wait(fence, false); + ttm_bo_move_null(ttm_bo, new_mem); + ret = 0; + } } else { /* * ttm_bo_move_accel_cleanup() may blow up if -- 2.40.1