From patchwork Fri Mar 18 15:06:09 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 12785452 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4930EC433EF for ; Fri, 18 Mar 2022 15:16:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236402AbiCRPSE (ORCPT ); Fri, 18 Mar 2022 11:18:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52806 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236012AbiCRPSD (ORCPT ); Fri, 18 Mar 2022 11:18:03 -0400 Received: from frasgout.his.huawei.com (frasgout.his.huawei.com [185.176.79.56]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7BCF71960B8 for ; Fri, 18 Mar 2022 08:16:43 -0700 (PDT) Received: from fraeml741-chm.china.huawei.com (unknown [172.18.147.226]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4KKncL3Hdpz67vdQ; Fri, 18 Mar 2022 23:14:42 +0800 (CST) Received: from lhreml710-chm.china.huawei.com (10.201.108.61) by fraeml741-chm.china.huawei.com (10.206.15.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Fri, 18 Mar 2022 16:16:41 +0100 Received: from SecurePC-101-06.china.huawei.com (10.122.247.231) by lhreml710-chm.china.huawei.com (10.201.108.61) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Fri, 18 Mar 2022 15:16:40 +0000 From: Jonathan Cameron To: , , =?utf-8?q?Alex_Benn?= =?utf-8?q?=C3=A9e?= , Marcel Apfelbaum , "Michael S . Tsirkin" , Igor Mammedov , Markus Armbruster CC: , Ben Widawsky , "Peter Maydell" , Shameerali Kolothum Thodi , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Peter Xu , David Hildenbrand , Paolo Bonzini , Saransh Gupta1 , Shreyas Shah , Chris Browy , "Samarth Saxena" , Dan Williams , "Mark Cave-Ayland" Subject: [PATCH v8 20/46] hw/cxl/device: Plumb real Label Storage Area (LSA) sizing Date: Fri, 18 Mar 2022 15:06:09 +0000 Message-ID: <20220318150635.24600-21-Jonathan.Cameron@huawei.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20220318150635.24600-1-Jonathan.Cameron@huawei.com> References: <20220318150635.24600-1-Jonathan.Cameron@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.122.247.231] X-ClientProxiedBy: lhreml732-chm.china.huawei.com (10.201.108.83) To lhreml710-chm.china.huawei.com (10.201.108.61) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-cxl@vger.kernel.org From: Ben Widawsky This should introduce no change. Subsequent work will make use of this new class member. Signed-off-by: Ben Widawsky Signed-off-by: Jonathan Cameron --- hw/cxl/cxl-mailbox-utils.c | 3 +++ hw/mem/cxl_type3.c | 9 +++++++++ include/hw/cxl/cxl_device.h | 10 ++++++++++ 3 files changed, 22 insertions(+) diff --git a/hw/cxl/cxl-mailbox-utils.c b/hw/cxl/cxl-mailbox-utils.c index fcd41d9a9d..771b1cfe90 100644 --- a/hw/cxl/cxl-mailbox-utils.c +++ b/hw/cxl/cxl-mailbox-utils.c @@ -277,6 +277,8 @@ static ret_code cmd_identify_memory_device(struct cxl_cmd *cmd, } QEMU_PACKED *id; QEMU_BUILD_BUG_ON(sizeof(*id) != 0x43); + CXLType3Dev *ct3d = container_of(cxl_dstate, CXLType3Dev, cxl_dstate); + CXLType3Class *cvc = CXL_TYPE3_DEV_GET_CLASS(ct3d); uint64_t size = cxl_dstate->pmem_size; if (!QEMU_IS_ALIGNED(size, 256 << 20)) { @@ -291,6 +293,7 @@ static ret_code cmd_identify_memory_device(struct cxl_cmd *cmd, id->total_capacity = size / (256 << 20); id->persistent_capacity = size / (256 << 20); + id->lsa_size = cvc->get_lsa_size(ct3d); *len = sizeof(*id); return CXL_MBOX_SUCCESS; diff --git a/hw/mem/cxl_type3.c b/hw/mem/cxl_type3.c index 16b113d5ed..7cd3041eb3 100644 --- a/hw/mem/cxl_type3.c +++ b/hw/mem/cxl_type3.c @@ -170,10 +170,16 @@ static Property ct3_props[] = { DEFINE_PROP_END_OF_LIST(), }; +static uint64_t get_lsa_size(CXLType3Dev *ct3d) +{ + return 0; +} + static void ct3_class_init(ObjectClass *oc, void *data) { DeviceClass *dc = DEVICE_CLASS(oc); PCIDeviceClass *pc = PCI_DEVICE_CLASS(oc); + CXLType3Class *cvc = CXL_TYPE3_DEV_CLASS(oc); pc->realize = ct3_realize; pc->class_id = PCI_CLASS_STORAGE_EXPRESS; @@ -185,11 +191,14 @@ static void ct3_class_init(ObjectClass *oc, void *data) dc->desc = "CXL PMEM Device (Type 3)"; dc->reset = ct3d_reset; device_class_set_props(dc, ct3_props); + + cvc->get_lsa_size = get_lsa_size; } static const TypeInfo ct3d_info = { .name = TYPE_CXL_TYPE3_DEV, .parent = TYPE_PCI_DEVICE, + .class_size = sizeof(struct CXLType3Class), .class_init = ct3_class_init, .instance_size = sizeof(CXLType3Dev), .instance_finalize = ct3_finalize, diff --git a/include/hw/cxl/cxl_device.h b/include/hw/cxl/cxl_device.h index 72da811c52..cf4c110f7e 100644 --- a/include/hw/cxl/cxl_device.h +++ b/include/hw/cxl/cxl_device.h @@ -237,6 +237,7 @@ typedef struct cxl_type3_dev { /* Properties */ uint64_t size; HostMemoryBackend *hostmem; + HostMemoryBackend *lsa; /* State */ CXLComponentState cxl_cstate; @@ -246,5 +247,14 @@ typedef struct cxl_type3_dev { #define TYPE_CXL_TYPE3_DEV "cxl-type3" #define CT3(obj) OBJECT_CHECK(CXLType3Dev, (obj), TYPE_CXL_TYPE3_DEV) +OBJECT_DECLARE_TYPE(CXLType3Device, CXLType3Class, CXL_TYPE3_DEV) + +struct CXLType3Class { + /* Private */ + PCIDeviceClass parent_class; + + /* public */ + uint64_t (*get_lsa_size)(CXLType3Dev *ct3d); +}; #endif