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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9E13FC43217 for ; Mon, 10 Jan 2022 22:32:27 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id ED8D66B007D; Mon, 10 Jan 2022 17:32:20 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id E3BAF6B007E; Mon, 10 Jan 2022 17:32:20 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id BF3E96B0080; Mon, 10 Jan 2022 17:32:20 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0062.hostedemail.com [216.40.44.62]) by kanga.kvack.org (Postfix) with ESMTP id 9B4476B007D for ; Mon, 10 Jan 2022 17:32:20 -0500 (EST) Received: from smtpin09.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 47B2594FC5 for ; Mon, 10 Jan 2022 22:32:20 +0000 (UTC) X-FDA: 79015827240.09.E0C5BF8 Received: from NAM11-BN8-obe.outbound.protection.outlook.com (mail-bn8nam11on2055.outbound.protection.outlook.com [40.107.236.55]) by imf11.hostedemail.com (Postfix) with ESMTP id 8F16D4000C for ; Mon, 10 Jan 2022 22:32:19 +0000 (UTC) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=QcAgoVd4sDTdXjoOVj78m5ON6jtxVrA7E13euAJ2yLl/t7FDVsO87uxOR+vMnkijgNZixmAfTBnTY1XzivDVWaVgDBtOPREhsyJUrwMZ6HgVq/GI0Kk8huK+p8Dqwq4p/AygDIR6C5lpeFKOBOlVqKgxOC4Rt3X+DPwsqOLzJmHHaDNHko26zZMBY69rIAFiOJTAXiAm1bOs3s1gUTREzzAKcZmd/oDWY64re1D/BUIvfxvnQn8wPYVPi2ggRN3iiqVjP0pFu3HA9flYhx1XkuCGKPqIgSB7OWa3eyiPPHP1zn85ge1GcTEuOGWzzh0TB8pmFelGnAsN+i5QXaRe0Q== 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=J1tAAOpYRHdEyMNidRApJJb3IRDrfH0Xu9uLVZ8DSqg=; b=MEB2Lty2OdaoEJ7gFrwZs9KTWjzEwi8NuAHKby393ca7JdkR3CBoIdh3zeOEbrrbP6horfmpR78eKo1vN9+qKUTfTJO8sH+w563kaR6AmMA0MoMmu3DWvLlnNTQa0bz9UwPAL2WHAyFNCfUrPH0hFff/iV6fQRppdJOffN/w4JrViJ0D2rFH52PGQvRqsT8h2w8Qlewj8lkIwgbmiJ1VEtSLaNTTQbkP7dqW3QJaKJCk9tTbW/fL7Ns2XQKypszanMexF/ejOqRY6f7YdjFlWDFRX0vUvy+Gc6x7B4H48v/7F+PnPS2AeyBKZs0EtK024j91IatvkCj0WsseeZ9P8w== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=linux-foundation.org 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=J1tAAOpYRHdEyMNidRApJJb3IRDrfH0Xu9uLVZ8DSqg=; b=4Vypg9Z50LGvHbjPdwvgUO/+oyzaa8KP/hKyOP3xAqpj/mkdtlWM7NQXHouqV6BviDJreilkggU35q9yzk2TALK2guHU6oRxZCu8SL5fPC7cDBAwvVeLsdO0qrhyKRqkaDBJKi1eqO9lB8ZmMlgigqxrGM0EGBfz9N3k8w1PM8U= Received: from BN9P221CA0017.NAMP221.PROD.OUTLOOK.COM (2603:10b6:408:10a::8) by MWHPR12MB1615.namprd12.prod.outlook.com (2603:10b6:301:10::16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4867.11; Mon, 10 Jan 2022 22:32:17 +0000 Received: from BN8NAM11FT055.eop-nam11.prod.protection.outlook.com (2603:10b6:408:10a:cafe::98) by BN9P221CA0017.outlook.office365.com (2603:10b6:408:10a::8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4867.9 via Frontend Transport; Mon, 10 Jan 2022 22:32:17 +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 BN8NAM11FT055.mail.protection.outlook.com (10.13.177.62) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.4867.9 via Frontend Transport; Mon, 10 Jan 2022 22:32:17 +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 15.1.2375.17; Mon, 10 Jan 2022 16:32:16 -0600 From: Alex Sierra To: , , , , , CC: , , , , , , Subject: [PATCH v3 07/10] lib: test_hmm add module param for zone device type Date: Mon, 10 Jan 2022 16:31:58 -0600 Message-ID: <20220110223201.31024-8-alex.sierra@amd.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20220110223201.31024-1-alex.sierra@amd.com> References: <20220110223201.31024-1-alex.sierra@amd.com> MIME-Version: 1.0 Content-Type: text/plain 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: 6ff49e91-af7e-4c4a-8d0d-08d9d4890eaa X-MS-TrafficTypeDiagnostic: MWHPR12MB1615:EE_ X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:1923; 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:(4636009)(40470700002)(36840700001)(46966006)(186003)(36860700001)(5660300002)(8676002)(2906002)(82310400004)(86362001)(6666004)(40460700001)(8936002)(7696005)(70206006)(70586007)(26005)(4326008)(1076003)(47076005)(356005)(7416002)(83380400001)(110136005)(508600001)(54906003)(36756003)(16526019)(2616005)(44832011)(426003)(81166007)(316002)(336012)(334744004)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Jan 2022 22:32:17.0989 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 6ff49e91-af7e-4c4a-8d0d-08d9d4890eaa 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: BN8NAM11FT055.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR12MB1615 Authentication-Results: imf11.hostedemail.com; dkim=pass header.d=amd.com header.s=selector1 header.b=4Vypg9Z5; dmarc=pass (policy=quarantine) header.from=amd.com; spf=pass (imf11.hostedemail.com: domain of Alex.Sierra@amd.com designates 40.107.236.55 as permitted sender) smtp.mailfrom=Alex.Sierra@amd.com X-Stat-Signature: nuxqqetcnuwo5o6tfnwdyjjegzwz6tat X-Rspamd-Queue-Id: 8F16D4000C X-Rspamd-Server: rspam12 X-HE-Tag: 1641853939-471765 Content-Transfer-Encoding: quoted-printable 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: In order to configure device coherent in test_hmm, two module parameters should be passed, which correspond to the SP start address of each device (2) spm_addr_dev0 & spm_addr_dev1. If no parameters are passed, private device type is configured. Signed-off-by: Alex Sierra --- lib/test_hmm.c | 74 +++++++++++++++++++++++++++++++-------------- lib/test_hmm_uapi.h | 1 + 2 files changed, 53 insertions(+), 22 deletions(-) diff --git a/lib/test_hmm.c b/lib/test_hmm.c index 97e48164d56a..9edeff52302e 100644 --- a/lib/test_hmm.c +++ b/lib/test_hmm.c @@ -34,6 +34,16 @@ #define DEVMEM_CHUNK_SIZE (256 * 1024 * 1024U) #define DEVMEM_CHUNKS_RESERVE 16 =20 +static unsigned long spm_addr_dev0; +module_param(spm_addr_dev0, long, 0644); +MODULE_PARM_DESC(spm_addr_dev0, + "Specify start address for SPM (special purpose memory) used for devic= e 0. By setting this Coherent device type will be used. Make sure spm_add= r_dev1 is set too"); + +static unsigned long spm_addr_dev1; +module_param(spm_addr_dev1, long, 0644); +MODULE_PARM_DESC(spm_addr_dev1, + "Specify start address for SPM (special purpose memory) used for devic= e 1. By setting this Coherent device type will be used. Make sure spm_add= r_dev0 is set too"); + static const struct dev_pagemap_ops dmirror_devmem_ops; static const struct mmu_interval_notifier_ops dmirror_min_ops; static dev_t dmirror_dev; @@ -452,29 +462,44 @@ static int dmirror_write(struct dmirror *dmirror, s= truct hmm_dmirror_cmd *cmd) return ret; } =20 -static bool dmirror_allocate_chunk(struct dmirror_device *mdevice, +static int dmirror_allocate_chunk(struct dmirror_device *mdevice, struct page **ppage) { struct dmirror_chunk *devmem; - struct resource *res; + struct resource *res =3D NULL; unsigned long pfn; unsigned long pfn_first; unsigned long pfn_last; void *ptr; + int ret =3D -ENOMEM; =20 devmem =3D kzalloc(sizeof(*devmem), GFP_KERNEL); if (!devmem) - return false; + return ret; =20 - res =3D request_free_mem_region(&iomem_resource, DEVMEM_CHUNK_SIZE, - "hmm_dmirror"); - if (IS_ERR(res)) + switch (mdevice->zone_device_type) { + case HMM_DMIRROR_MEMORY_DEVICE_PRIVATE: + res =3D request_free_mem_region(&iomem_resource, DEVMEM_CHUNK_SIZE, + "hmm_dmirror"); + if (IS_ERR_OR_NULL(res)) + goto err_devmem; + devmem->pagemap.range.start =3D res->start; + devmem->pagemap.range.end =3D res->end; + devmem->pagemap.type =3D MEMORY_DEVICE_PRIVATE; + break; + case HMM_DMIRROR_MEMORY_DEVICE_COHERENT: + devmem->pagemap.range.start =3D (MINOR(mdevice->cdevice.dev) - 2) ? + spm_addr_dev0 : + spm_addr_dev1; + devmem->pagemap.range.end =3D devmem->pagemap.range.start + + DEVMEM_CHUNK_SIZE - 1; + devmem->pagemap.type =3D MEMORY_DEVICE_COHERENT; + break; + default: + ret =3D -EINVAL; goto err_devmem; + } =20 - mdevice->zone_device_type =3D HMM_DMIRROR_MEMORY_DEVICE_PRIVATE; - devmem->pagemap.type =3D MEMORY_DEVICE_PRIVATE; - devmem->pagemap.range.start =3D res->start; - devmem->pagemap.range.end =3D res->end; devmem->pagemap.nr_range =3D 1; devmem->pagemap.ops =3D &dmirror_devmem_ops; devmem->pagemap.owner =3D mdevice; @@ -495,10 +520,14 @@ static bool dmirror_allocate_chunk(struct dmirror_d= evice *mdevice, mdevice->devmem_capacity =3D new_capacity; mdevice->devmem_chunks =3D new_chunks; } - ptr =3D memremap_pages(&devmem->pagemap, numa_node_id()); - if (IS_ERR(ptr)) + if (IS_ERR_OR_NULL(ptr)) { + if (ptr) + ret =3D PTR_ERR(ptr); + else + ret =3D -EFAULT; goto err_release; + } =20 devmem->mdevice =3D mdevice; pfn_first =3D devmem->pagemap.range.start >> PAGE_SHIFT; @@ -527,15 +556,17 @@ static bool dmirror_allocate_chunk(struct dmirror_d= evice *mdevice, } spin_unlock(&mdevice->lock); =20 - return true; + return 0; =20 err_release: mutex_unlock(&mdevice->devmem_lock); - release_mem_region(devmem->pagemap.range.start, range_len(&devmem->page= map.range)); + if (res && devmem->pagemap.type =3D=3D MEMORY_DEVICE_PRIVATE) + release_mem_region(devmem->pagemap.range.start, + range_len(&devmem->pagemap.range)); err_devmem: kfree(devmem); =20 - return false; + return ret; } =20 static struct page *dmirror_devmem_alloc_page(struct dmirror_device *mde= vice) @@ -560,7 +591,7 @@ static struct page *dmirror_devmem_alloc_page(struct = dmirror_device *mdevice) spin_unlock(&mdevice->lock); } else { spin_unlock(&mdevice->lock); - if (!dmirror_allocate_chunk(mdevice, &dpage)) + if (dmirror_allocate_chunk(mdevice, &dpage)) goto error; } =20 @@ -1220,10 +1251,8 @@ static int dmirror_device_init(struct dmirror_devi= ce *mdevice, int id) if (ret) return ret; =20 - /* Build a list of free ZONE_DEVICE private struct pages */ - dmirror_allocate_chunk(mdevice, NULL); - - return 0; + /* Build a list of free ZONE_DEVICE struct pages */ + return dmirror_allocate_chunk(mdevice, NULL); } =20 static void dmirror_device_remove(struct dmirror_device *mdevice) @@ -1236,8 +1265,9 @@ static void dmirror_device_remove(struct dmirror_de= vice *mdevice) mdevice->devmem_chunks[i]; =20 memunmap_pages(&devmem->pagemap); - release_mem_region(devmem->pagemap.range.start, - range_len(&devmem->pagemap.range)); + if (devmem->pagemap.type =3D=3D MEMORY_DEVICE_PRIVATE) + release_mem_region(devmem->pagemap.range.start, + range_len(&devmem->pagemap.range)); kfree(devmem); } kfree(mdevice->devmem_chunks); diff --git a/lib/test_hmm_uapi.h b/lib/test_hmm_uapi.h index 17f842f1aa02..625f3690d086 100644 --- a/lib/test_hmm_uapi.h +++ b/lib/test_hmm_uapi.h @@ -68,6 +68,7 @@ enum { enum { /* 0 is reserved to catch uninitialized type fields */ HMM_DMIRROR_MEMORY_DEVICE_PRIVATE =3D 1, + HMM_DMIRROR_MEMORY_DEVICE_COHERENT, }; =20 #endif /* _LIB_TEST_HMM_UAPI_H */ --=20 2.32.0