From patchwork Mon May 16 23:14:25 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Sierra Guiza, Alejandro (Alex)" X-Patchwork-Id: 12851668 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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 66AD4C433EF for ; Mon, 16 May 2022 23:15:08 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id BD2018D0003; Mon, 16 May 2022 19:15:04 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id B0B336B0078; Mon, 16 May 2022 19:15:04 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 8C6378D0003; Mon, 16 May 2022 19:15:04 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) by kanga.kvack.org (Postfix) with ESMTP id 757936B0075 for ; Mon, 16 May 2022 19:15:04 -0400 (EDT) Received: from smtpin14.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay11.hostedemail.com (Postfix) with ESMTP id 5838D8148F for ; Mon, 16 May 2022 23:15:04 +0000 (UTC) X-FDA: 79473163728.14.FBCDF11 Received: from NAM02-SN1-obe.outbound.protection.outlook.com (mail-sn1anam02on2069.outbound.protection.outlook.com [40.107.96.69]) by imf09.hostedemail.com (Postfix) with ESMTP id C5CBB140066 for ; Mon, 16 May 2022 23:14:53 +0000 (UTC) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=OrC5bI8PC08ZbO+rkM4cBR0Be01kxRXwr+QXvkGlsFoIVdvwL3YK5f9jFlZNbyVOphfkW1TDkCHpKc19Jbkf0TuhXFhWogzQ9JVMD0VH6GAFo952CsJVMEU5nIlsm4rnNZq6FxrJpeNn7HK6XuN24pvwmyHz+EI+m82EwG99XjevGO43Tq1/94dz6K884B4Q7Rze4bPtogGMifbWuum6SLNyN9H7hdL6EiMKaviGQddmeQ42TIKx/2Y8MYmr0W7nbJb3id+/rJEd4z+smfPAvzZ/5gPNtFFXuerfAX2913FG47WXQAY2wjultxXBJeXAed1ER3HnCN0zEICVScZMEQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=BO1XgdLChGhcmXQYgQRlktGItGh1h3zZzS9U0EV0V6A=; b=BJjf1ginelt/sZwoIk+7Zsqia6FGiD5LZevghgnw250YI2Fm5vrk10Bpl6O5xbNEdvASgUayEZESfibJgLakVjPvBOJH5PE3WfXyd1h3Neq9S4rtCzd3kIKXuBBORUODy/KNRfAsRnm9qqRUGJr+HnIbJKdedEpFCBHuJzfC0Vz2Q2ZlSPHad8s587KEvuk+k0Ff6kOBeixu89LNsin9tCqEJO9H6LJIpr85uFX9tCBrvnsLiJqWHr6LQn+Bywktm9oFhIAwIKCimycxr+cUdrFyb/pAS9bnPtq/dbA0+xgtUSisBpPWUtIPPrqSlvF4bj2Hp+9U/tfzqilBl3QxRA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=nvidia.com smtp.mailfrom=amd.com; dmarc=pass (p=quarantine sp=quarantine pct=100) action=none header.from=amd.com; dkim=none (message not signed); arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amd.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=BO1XgdLChGhcmXQYgQRlktGItGh1h3zZzS9U0EV0V6A=; b=CCgUYQG3x1TLvpRK4Qd6fpfEhmjTtkt0x67TdG72bLORK4P4OEojCCUjPWt85mwJF6yWGJnzMoHtQlahueF5cFy7CRzz71pH2qUTGLvh4slRXe6Tsp0ZZPqtyNODEFr0hk51rgJTPGIvGJqhlI9qeIDZuk02r19D7AqvvXVtRlI= Received: from BN9PR03CA0386.namprd03.prod.outlook.com (2603:10b6:408:f7::31) by DS7PR12MB5863.namprd12.prod.outlook.com (2603:10b6:8:7a::18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5250.18; Mon, 16 May 2022 23:15:01 +0000 Received: from BN8NAM11FT051.eop-nam11.prod.protection.outlook.com (2603:10b6:408:f7:cafe::85) by BN9PR03CA0386.outlook.office365.com (2603:10b6:408:f7::31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5250.18 via Frontend Transport; Mon, 16 May 2022 23:15:01 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=amd.com; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; Received: from SATLEXMB04.amd.com (165.204.84.17) by BN8NAM11FT051.mail.protection.outlook.com (10.13.177.66) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.5250.13 via Frontend Transport; Mon, 16 May 2022 23:15:01 +0000 Received: from alex-MS-7B09.amd.com (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Mon, 16 May 2022 18:14:59 -0500 From: Alex Sierra To: CC: , , , , , , , , , , , , Subject: [PATCH v2 06/13] lib: test_hmm add ioctl to get zone device type Date: Mon, 16 May 2022 18:14:25 -0500 Message-ID: <20220516231432.20200-7-alex.sierra@amd.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20220516231432.20200-1-alex.sierra@amd.com> References: <20220516231432.20200-1-alex.sierra@amd.com> MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB03.amd.com (10.181.40.144) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: fb9f560a-7a9a-4cb4-beff-08da3791e6f0 X-MS-TrafficTypeDiagnostic: DS7PR12MB5863:EE_ X-Microsoft-Antispam-PRVS: X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230001)(4636009)(46966006)(36840700001)(40470700004)(4326008)(70586007)(70206006)(81166007)(8676002)(36860700001)(82310400005)(26005)(54906003)(6916009)(40460700003)(316002)(2906002)(1076003)(36756003)(2616005)(16526019)(186003)(8936002)(356005)(7696005)(83380400001)(86362001)(6666004)(5660300002)(336012)(426003)(44832011)(7416002)(508600001)(47076005)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 16 May 2022 23:15:01.0044 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: fb9f560a-7a9a-4cb4-beff-08da3791e6f0 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BN8NAM11FT051.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS7PR12MB5863 X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: C5CBB140066 X-Stat-Signature: h5ehnd9t7c6usx49eqmoiwj3rngmnkm5 X-Rspam-User: Authentication-Results: imf09.hostedemail.com; dkim=pass header.d=amd.com header.s=selector1 header.b=CCgUYQG3; spf=pass (imf09.hostedemail.com: domain of Alex.Sierra@amd.com designates 40.107.96.69 as permitted sender) smtp.mailfrom=Alex.Sierra@amd.com; dmarc=pass (policy=quarantine) header.from=amd.com X-HE-Tag: 1652742893-623377 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: new ioctl cmd added to query zone device type. This will be used once the test_hmm adds zone device coherent type. Signed-off-by: Alex Sierra Acked-by: Felix Kuehling Reviewed-by: Alistair Poppple Signed-off-by: Christoph Hellwig --- lib/test_hmm.c | 23 +++++++++++++++++++++-- lib/test_hmm_uapi.h | 8 ++++++++ 2 files changed, 29 insertions(+), 2 deletions(-) diff --git a/lib/test_hmm.c b/lib/test_hmm.c index cfe632047839..7a27584484ce 100644 --- a/lib/test_hmm.c +++ b/lib/test_hmm.c @@ -87,6 +87,7 @@ struct dmirror_chunk { struct dmirror_device { struct cdev cdevice; struct hmm_devmem *devmem; + unsigned int zone_device_type; unsigned int devmem_capacity; unsigned int devmem_count; @@ -1026,6 +1027,15 @@ static int dmirror_snapshot(struct dmirror *dmirror, return ret; } +static int dmirror_get_device_type(struct dmirror *dmirror, + struct hmm_dmirror_cmd *cmd) +{ + mutex_lock(&dmirror->mutex); + cmd->zone_device_type = dmirror->mdevice->zone_device_type; + mutex_unlock(&dmirror->mutex); + + return 0; +} static long dmirror_fops_unlocked_ioctl(struct file *filp, unsigned int command, unsigned long arg) @@ -1076,6 +1086,9 @@ static long dmirror_fops_unlocked_ioctl(struct file *filp, ret = dmirror_snapshot(dmirror, &cmd); break; + case HMM_DMIRROR_GET_MEM_DEV_TYPE: + ret = dmirror_get_device_type(dmirror, &cmd); + break; default: return -EINVAL; } @@ -1260,14 +1273,20 @@ static void dmirror_device_remove(struct dmirror_device *mdevice) static int __init hmm_dmirror_init(void) { int ret; - int id; + int id = 0; + int ndevices = 0; ret = alloc_chrdev_region(&dmirror_dev, 0, DMIRROR_NDEVICES, "HMM_DMIRROR"); if (ret) goto err_unreg; - for (id = 0; id < DMIRROR_NDEVICES; id++) { + memset(dmirror_devices, 0, DMIRROR_NDEVICES * sizeof(dmirror_devices[0])); + dmirror_devices[ndevices++].zone_device_type = + HMM_DMIRROR_MEMORY_DEVICE_PRIVATE; + dmirror_devices[ndevices++].zone_device_type = + HMM_DMIRROR_MEMORY_DEVICE_PRIVATE; + for (id = 0; id < ndevices; id++) { ret = dmirror_device_init(dmirror_devices + id, id); if (ret) goto err_chrdev; diff --git a/lib/test_hmm_uapi.h b/lib/test_hmm_uapi.h index f14dea5dcd06..17f842f1aa02 100644 --- a/lib/test_hmm_uapi.h +++ b/lib/test_hmm_uapi.h @@ -19,6 +19,7 @@ * @npages: (in) number of pages to read/write * @cpages: (out) number of pages copied * @faults: (out) number of device page faults seen + * @zone_device_type: (out) zone device memory type */ struct hmm_dmirror_cmd { __u64 addr; @@ -26,6 +27,7 @@ struct hmm_dmirror_cmd { __u64 npages; __u64 cpages; __u64 faults; + __u64 zone_device_type; }; /* Expose the address space of the calling process through hmm device file */ @@ -35,6 +37,7 @@ struct hmm_dmirror_cmd { #define HMM_DMIRROR_SNAPSHOT _IOWR('H', 0x03, struct hmm_dmirror_cmd) #define HMM_DMIRROR_EXCLUSIVE _IOWR('H', 0x04, struct hmm_dmirror_cmd) #define HMM_DMIRROR_CHECK_EXCLUSIVE _IOWR('H', 0x05, struct hmm_dmirror_cmd) +#define HMM_DMIRROR_GET_MEM_DEV_TYPE _IOWR('H', 0x06, struct hmm_dmirror_cmd) /* * Values returned in hmm_dmirror_cmd.ptr for HMM_DMIRROR_SNAPSHOT. @@ -62,4 +65,9 @@ enum { HMM_DMIRROR_PROT_DEV_PRIVATE_REMOTE = 0x30, }; +enum { + /* 0 is reserved to catch uninitialized type fields */ + HMM_DMIRROR_MEMORY_DEVICE_PRIVATE = 1, +}; + #endif /* _LIB_TEST_HMM_UAPI_H */