From patchwork Tue Feb 9 23:48:15 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rikard Falkeborn X-Patchwork-Id: 12079417 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.5 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 311A7C433E0 for ; Tue, 9 Feb 2021 23:58:11 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id C86D964E3A for ; Tue, 9 Feb 2021 23:58:10 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C86D964E3A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id B7C9C6EC0F; Tue, 9 Feb 2021 23:58:04 +0000 (UTC) Received: from mail-lj1-x22e.google.com (mail-lj1-x22e.google.com [IPv6:2a00:1450:4864:20::22e]) by gabe.freedesktop.org (Postfix) with ESMTPS id 0E7AD6E120; Tue, 9 Feb 2021 23:48:26 +0000 (UTC) Received: by mail-lj1-x22e.google.com with SMTP id e17so460597ljl.8; Tue, 09 Feb 2021 15:48:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=4swNihDJsoYDJ0JsyJpoLdvvdULpyc/j+WuCFDkGmdk=; b=DvGasgA0cBZxp10arB0pzHAA1elBFCn6tbSXE+bUO9kNl0dcAlRLjHFfTwTid6UkaK ClaJs+JwM2OWf+ysSQ20FVEj7J9jqethm5mXLVh0iSq+LzI7Pzcdt3rHTpW63cetSWZ3 KJr+a0sLR97wkDBDC+XBvIGpXAjuG+PvVkRJYHQbiOY53uzGHMsJu7V7DOhQpXkLGD/s vrm34aGpfgT7XqPa4R+lUh9iVnPdg76XWg8R2juQt8BJ2nmOUyvV6qcTisw1T16Ai3Dk 06i80KyIlv934deDzVPavbqkNr+08UtlVJkz4Jm75gmnHuvGPP2bMCYoWEGVT57datxG 4MCQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=4swNihDJsoYDJ0JsyJpoLdvvdULpyc/j+WuCFDkGmdk=; b=EBRHuN0oTSalxtNQ6Edj1jGrPoYEvu4nvfWwTKwFvk1Czc7X8zsOvU05tfNm/yzFUT A+6Xddwkod9/+/Q2fW4deAgoEjhPiWu1AWzPCDjd17guT7XOicOtDsDe37JG7cx9cdYh IO1MGLOLtzoo4m2h+6K8K6s24MMJzMs0zlbNxaS7nToLuZRR1VNwmL05IFSIIKBMZlIh VHXDMZ6fuBBY2CAeL7CrYjeyG/Ah4JLWm1+NgMqSNw22VmcnEc9A9jdtLTCjWgwTN9QL EXuxnKr88HIvdvfhwcwNPa4K4mm7vXGL9hp/PB35SOZvBJXE5Xwnswbq1slHY13OT5Kg fRFQ== X-Gm-Message-State: AOAM530ZF9+8VEITKZugzUMNl3L8y0f1bwGYHqzzGjwk2uwvBPWeAWd5 4DwIUXNm8mtVM58kRd4kyWc= X-Google-Smtp-Source: ABdhPJwgJMwrUJpmjPdiN4LhVY8dzLtZOmK+2j8dd/eOrcdGwk+wfMPJmghCa/fXf9neZoI5z8dCSQ== X-Received: by 2002:a2e:804d:: with SMTP id p13mr164131ljg.177.1612914504481; Tue, 09 Feb 2021 15:48:24 -0800 (PST) Received: from localhost.localdomain (h-158-174-22-164.NA.cust.bahnhof.se. [158.174.22.164]) by smtp.gmail.com with ESMTPSA id c25sm23779lja.131.2021.02.09.15.48.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 09 Feb 2021 15:48:23 -0800 (PST) From: Rikard Falkeborn To: David Airlie , Daniel Vetter Subject: [PATCH 1/3] drm/amdgpu/ttm: constify static vm_operations_struct Date: Wed, 10 Feb 2021 00:48:15 +0100 Message-Id: <20210209234817.55112-2-rikard.falkeborn@gmail.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210209234817.55112-1-rikard.falkeborn@gmail.com> References: <20210209234817.55112-1-rikard.falkeborn@gmail.com> MIME-Version: 1.0 X-Mailman-Approved-At: Tue, 09 Feb 2021 23:58:03 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: dri-devel@lists.freedesktop.org, nouveau@lists.freedesktop.org, Felix Kuehling , linux-kernel@vger.kernel.org, amd-gfx@lists.freedesktop.org, Rikard Falkeborn , Ben Skeggs , Alex Deucher , Likun Gao , =?utf-8?q?Christian_K=C3=B6nig?= Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" The only usage of amdgpu_ttm_vm_ops is to assign its address to the vm_ops field in the vm_area_struct struct. Make it const to allow the compiler to put it in read-only memory. Signed-off-by: Rikard Falkeborn --- drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index 29cfb0809634..a785acc09f20 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -2002,7 +2002,7 @@ static vm_fault_t amdgpu_ttm_fault(struct vm_fault *vmf) return ret; } -static struct vm_operations_struct amdgpu_ttm_vm_ops = { +static const struct vm_operations_struct amdgpu_ttm_vm_ops = { .fault = amdgpu_ttm_fault, .open = ttm_bo_vm_open, .close = ttm_bo_vm_close, From patchwork Tue Feb 9 23:48:16 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rikard Falkeborn X-Patchwork-Id: 12079419 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.5 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C8CE3C433DB for ; Tue, 9 Feb 2021 23:58:12 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 8324E64E40 for ; Tue, 9 Feb 2021 23:58:12 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8324E64E40 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id AA0BA6EC0D; Tue, 9 Feb 2021 23:58:04 +0000 (UTC) Received: from mail-lj1-x22f.google.com (mail-lj1-x22f.google.com [IPv6:2a00:1450:4864:20::22f]) by gabe.freedesktop.org (Postfix) with ESMTPS id E416C6EC07; Tue, 9 Feb 2021 23:48:26 +0000 (UTC) Received: by mail-lj1-x22f.google.com with SMTP id e17so460640ljl.8; Tue, 09 Feb 2021 15:48:26 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=cLZtFkHMbed+rABy5CfV1sfDkxWh/w6w89VAEQBWMBM=; b=Xk52od/vCRkJrNgX2xOUOcqcEZfsjE1G1qm1+cEHAZJ141du77ilkUTMJnuQze3+kp gKUG5m7Stw9T8RVxsN4/sruOSsJYDOKE+0q3oCTM70x74K7tXOCiUN1dd5/itmMh0Uz7 9Jef6DpzmX3bsLMxNhhZFXXos+I+BXGdwOrTtOZMXC607vSFRTA9WwLq1WsMswRgyYB4 jDHZvBh0xrPewbnxIxtC0a1ixD/gvp3+JaU9buMRMTlYSC2BP9p4F04q/28sRlDxh5Lt iRFnrqklipYdwyMryg34VLpBFht3j97CF69mGv7tCc6Z2opoNdfNavQhduFn1yhINZYE 8B+A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=cLZtFkHMbed+rABy5CfV1sfDkxWh/w6w89VAEQBWMBM=; b=QzMhMy8Qr7nEghLGclisrqtW4/ByVUh6ifLfW9cyIL7yp6P2yrym5sQbPNIY2F2HDX 3l21/TK8Ff3VLw0UI+mCe7ToiPmerPio0rWabCxv7PGN8K87a/IIabWPCw2G4CIDPIy3 zhX1qeRKVenCmQKDwch/27xX2ygOT3FozbIZuri7kDRG576T2CTVArCXm1foVLvnSRPU G7l528kbjDQUsi7PhKUZoF852IoxhJRsQVfHpxChd2b2JOv3y2E7FlHmz7am4WcxwpJG bRjWNz+/m0oo8QVzbQ2hmqivFN4fm5emZou+vb/86eO4Fl/e2BDxxMO5Gow7T4nztiuc NYgw== X-Gm-Message-State: AOAM533KRy5qaoKfcVj8gJhIymiwXdpYK6xve8Zjcvpaz0PBRoFBzekA ub3jeu5PDnPcXDPCcN1M4zk= X-Google-Smtp-Source: ABdhPJzOhLZJW9GPyDZKcQlAB8eHO6X0CxOC29ay/OKYLuVO7/SklISGxX8hQQ49RL96j6DC7Va1dQ== X-Received: by 2002:a2e:b8d3:: with SMTP id s19mr178797ljp.97.1612914505429; Tue, 09 Feb 2021 15:48:25 -0800 (PST) Received: from localhost.localdomain (h-158-174-22-164.NA.cust.bahnhof.se. [158.174.22.164]) by smtp.gmail.com with ESMTPSA id c25sm23779lja.131.2021.02.09.15.48.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 09 Feb 2021 15:48:24 -0800 (PST) From: Rikard Falkeborn To: David Airlie , Daniel Vetter Subject: [PATCH 2/3] drm/radeon/ttm: constify static vm_operations_struct Date: Wed, 10 Feb 2021 00:48:16 +0100 Message-Id: <20210209234817.55112-3-rikard.falkeborn@gmail.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210209234817.55112-1-rikard.falkeborn@gmail.com> References: <20210209234817.55112-1-rikard.falkeborn@gmail.com> MIME-Version: 1.0 X-Mailman-Approved-At: Tue, 09 Feb 2021 23:58:03 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: dri-devel@lists.freedesktop.org, nouveau@lists.freedesktop.org, Felix Kuehling , linux-kernel@vger.kernel.org, amd-gfx@lists.freedesktop.org, Rikard Falkeborn , Ben Skeggs , Alex Deucher , Likun Gao , =?utf-8?q?Christian_K=C3=B6nig?= Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" The only usage of radeon_ttm_vm_ops is to assign its address to the vm_ops field in the vm_area_struct struct. Make it const to allow the compiler to put it in read-only memory Signed-off-by: Rikard Falkeborn --- drivers/gpu/drm/radeon/radeon_ttm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c index c45e919e03c5..5fc8bae401af 100644 --- a/drivers/gpu/drm/radeon/radeon_ttm.c +++ b/drivers/gpu/drm/radeon/radeon_ttm.c @@ -835,7 +835,7 @@ static vm_fault_t radeon_ttm_fault(struct vm_fault *vmf) return ret; } -static struct vm_operations_struct radeon_ttm_vm_ops = { +static const struct vm_operations_struct radeon_ttm_vm_ops = { .fault = radeon_ttm_fault, .open = ttm_bo_vm_open, .close = ttm_bo_vm_close, From patchwork Tue Feb 9 23:48:17 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rikard Falkeborn X-Patchwork-Id: 12079415 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.5 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E3B73C433DB for ; Tue, 9 Feb 2021 23:58:08 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 9A64E64DDA for ; Tue, 9 Feb 2021 23:58:08 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9A64E64DDA Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id AAFCC6EC0E; Tue, 9 Feb 2021 23:58:04 +0000 (UTC) Received: from mail-lf1-x136.google.com (mail-lf1-x136.google.com [IPv6:2a00:1450:4864:20::136]) by gabe.freedesktop.org (Postfix) with ESMTPS id F28926E120; Tue, 9 Feb 2021 23:48:27 +0000 (UTC) Received: by mail-lf1-x136.google.com with SMTP id p21so113189lfu.11; Tue, 09 Feb 2021 15:48:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=yNEcY+k1I/sPxeT89v0RbvERaYcFC6w0nk6p7Ga+k7o=; b=H55GtJ+kFJow/fff1SlxkWECW/MsUAGzpc1ycWI29ms7aU5BsoRoN6PI5KmdemYb3e lsdW1od8WBmJt4SLC9o5lqjwSPxX5fs7DCAZpvaLduFlvDn0up50izcE3A9sh684r1Og AhVM1o29PNIjDIv62v++595uWT8LWfgYSbHvAmGTVt0NNlWp/zT9kPJy/3lc7X7qUdyh 6NMylHkFQ3VWjNHgUOKUdvqqwyiD3KqKSvPNVer+dV9SfmSbV2ZsJ4mldWqSnD3KeayA +L+czvtUTNzU2kIljMobA1Gwxet4fjA7apw9SRYaj+eX9RlWpXij60MQw53QCFt3jD9o 3KpQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=yNEcY+k1I/sPxeT89v0RbvERaYcFC6w0nk6p7Ga+k7o=; b=aWa+c4Bv2S9JWLdHKD80NvxG3gbCUu8SPXvhDYwUln5RoaRiaEtjEqf4Vhgo7olOWr SIj4M8raorAZMmZacil0N0W+4c7Tta8bTrbfJyOo0VoyZtMaijjmqffpfMFuFDHaoHl8 W5RRRXzh7b7SV7YKTRvu9VYdL9cTs50XAte+JSKXYBvbRrc19z1fykooGNEPZ0rJWBdk 3KJ8kqe2NQ+PW8vqAxZF1n/5Qtt5BhkOad5UT8RdP+z6Jn+QGtQtHUb4Y9K/mbA7dT7H H8JGrVz5Y8tYLlYF0OqaQ3pq9RNFaYSQGuO260qcvov/JMzEv21g0wcZwDfuel5fGfLo /Yig== X-Gm-Message-State: AOAM5315RZ7mWjCo4BDz3Ps7KsT5sywT1FaUaUb++9anZy3jfBEYWBOS 2YbpFCaAw1ZLFnRHLZq20Rc= X-Google-Smtp-Source: ABdhPJwEgfMGoJUtU5l1trR++7LWKZ1G/cGIubNiHZdjGVjhcKjS3G5FyPiBakSx7jaYCAYohVN/Yw== X-Received: by 2002:a05:6512:39ce:: with SMTP id k14mr195590lfu.169.1612914506449; Tue, 09 Feb 2021 15:48:26 -0800 (PST) Received: from localhost.localdomain (h-158-174-22-164.NA.cust.bahnhof.se. [158.174.22.164]) by smtp.gmail.com with ESMTPSA id c25sm23779lja.131.2021.02.09.15.48.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 09 Feb 2021 15:48:25 -0800 (PST) From: Rikard Falkeborn To: David Airlie , Daniel Vetter Subject: [PATCH 3/3] drm/nouveau/ttm: constify static vm_operations_struct Date: Wed, 10 Feb 2021 00:48:17 +0100 Message-Id: <20210209234817.55112-4-rikard.falkeborn@gmail.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210209234817.55112-1-rikard.falkeborn@gmail.com> References: <20210209234817.55112-1-rikard.falkeborn@gmail.com> MIME-Version: 1.0 X-Mailman-Approved-At: Tue, 09 Feb 2021 23:58:03 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: dri-devel@lists.freedesktop.org, nouveau@lists.freedesktop.org, Felix Kuehling , linux-kernel@vger.kernel.org, amd-gfx@lists.freedesktop.org, Rikard Falkeborn , Ben Skeggs , Alex Deucher , Likun Gao , =?utf-8?q?Christian_K=C3=B6nig?= Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" The only usage of nouveau_ttm_vm_ops is to assign its address to the vm_ops field in the vm_area_struct struct. Make it const to allow the compiler to put it in read-only memory Signed-off-by: Rikard Falkeborn --- drivers/gpu/drm/nouveau/nouveau_ttm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.c b/drivers/gpu/drm/nouveau/nouveau_ttm.c index 495288182c2d..b81ae90b8449 100644 --- a/drivers/gpu/drm/nouveau/nouveau_ttm.c +++ b/drivers/gpu/drm/nouveau/nouveau_ttm.c @@ -154,7 +154,7 @@ static vm_fault_t nouveau_ttm_fault(struct vm_fault *vmf) return ret; } -static struct vm_operations_struct nouveau_ttm_vm_ops = { +static const struct vm_operations_struct nouveau_ttm_vm_ops = { .fault = nouveau_ttm_fault, .open = ttm_bo_vm_open, .close = ttm_bo_vm_close,