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 A80EEC54798 for ; Fri, 23 Feb 2024 19:37:12 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 535F610ECAA; Fri, 23 Feb 2024 19:37:12 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="I5J5EgX4"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.14]) by gabe.freedesktop.org (Postfix) with ESMTPS id C9D6610ECA9 for ; Fri, 23 Feb 2024 19:37:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1708717032; x=1740253032; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=A69252KFkwLpWIIKXxD5n6dZuDYUbjzj8L6P2gotpgA=; b=I5J5EgX4cyZKPQEcppp2htpZ4TDG3NHn/ufXY4Mlx7EjDVUdqHCygkDo xzbEWCrwrnzSFQ0EhuwuUQtD/2E4TF4HhUYtGHcfa/CW2km0biNqjl/A6 wNvO7ZoiYBguryJCr1ims8S6rkXq8ilmqE6Kyd6vuwDfmSyX+NGedciNv 8snnWdEWS2eDEUlfXDMRTQwaJk1KcjyHIKNy95cVwpdffaOl6ZGAtqkUY AhOlj+JfxQ+dAMZbsTYjRN9oAbQJbJ3q75avc3hZET7qdJzUcdvcm9856 uvKAfZ7NsBlxvfDUi1xr4xbwmiMqA0eT6O3T+pN7w2+79FxQNMbxBcYbX Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10993"; a="6866999" X-IronPort-AV: E=Sophos;i="6.06,180,1705392000"; d="scan'208";a="6866999" Received: from orviesa009.jf.intel.com ([10.64.159.149]) by orvoesa106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Feb 2024 11:37:11 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.06,180,1705392000"; d="scan'208";a="6021882" Received: from lstrano-desk.jf.intel.com ([10.54.39.91]) by orviesa009-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Feb 2024 11:37:11 -0800 From: Matthew Brost To: Cc: Matthew Brost Subject: [PATCH] drm/xe: Use vmalloc for array of bind allocation in bind IOCTL Date: Fri, 23 Feb 2024 11:37:19 -0800 Message-Id: <20240223193719.6495-1-matthew.brost@intel.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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" Use vmalloc in effort to allow a user pass in a large number of binds in an IOCTL (mesa use case). Also use array allocations rather open coding the size calculation. Fixes: dd08ebf6c352 ("drm/xe: Introduce a new DRM driver for Intel GPUs") Signed-off-by: Matthew Brost --- drivers/gpu/drm/xe/xe_vm.c | 23 ++++++++++++----------- 1 file changed, 12 insertions(+), 11 deletions(-) diff --git a/drivers/gpu/drm/xe/xe_vm.c b/drivers/gpu/drm/xe/xe_vm.c index e3bde897f6e8..45a12207ebf5 100644 --- a/drivers/gpu/drm/xe/xe_vm.c +++ b/drivers/gpu/drm/xe/xe_vm.c @@ -2778,8 +2778,9 @@ static int vm_bind_ioctl_check_args(struct xe_device *xe, u64 __user *bind_user = u64_to_user_ptr(args->vector_of_binds); - *bind_ops = kmalloc(sizeof(struct drm_xe_vm_bind_op) * - args->num_binds, GFP_KERNEL); + *bind_ops = kvmalloc_array(args->num_binds, + sizeof(struct drm_xe_vm_bind_op), + GFP_KERNEL); if (!*bind_ops) return -ENOMEM; @@ -2869,7 +2870,7 @@ static int vm_bind_ioctl_check_args(struct xe_device *xe, free_bind_ops: if (args->num_binds > 1) - kfree(*bind_ops); + kvfree(*bind_ops); return err; } @@ -2957,13 +2958,13 @@ int xe_vm_bind_ioctl(struct drm_device *dev, void *data, struct drm_file *file) } if (args->num_binds) { - bos = kcalloc(args->num_binds, sizeof(*bos), GFP_KERNEL); + bos = kvcalloc(args->num_binds, sizeof(*bos), GFP_KERNEL); if (!bos) { err = -ENOMEM; goto release_vm_lock; } - ops = kcalloc(args->num_binds, sizeof(*ops), GFP_KERNEL); + ops = kvcalloc(args->num_binds, sizeof(*ops), GFP_KERNEL); if (!ops) { err = -ENOMEM; goto release_vm_lock; @@ -3104,10 +3105,10 @@ int xe_vm_bind_ioctl(struct drm_device *dev, void *data, struct drm_file *file) for (i = 0; bos && i < args->num_binds; ++i) xe_bo_put(bos[i]); - kfree(bos); - kfree(ops); + kvfree(bos); + kvfree(ops); if (args->num_binds > 1) - kfree(bind_ops); + kvfree(bind_ops); return err; @@ -3131,10 +3132,10 @@ int xe_vm_bind_ioctl(struct drm_device *dev, void *data, struct drm_file *file) if (q) xe_exec_queue_put(q); free_objs: - kfree(bos); - kfree(ops); + kvfree(bos); + kvfree(ops); if (args->num_binds > 1) - kfree(bind_ops); + kvfree(bind_ops); return err; } -- 2.34.1