From patchwork Mon Jan 24 17:16:49 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 12722528 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 51F6FC433EF for ; Mon, 24 Jan 2022 17:30:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235779AbiAXRaY (ORCPT ); Mon, 24 Jan 2022 12:30:24 -0500 Received: from frasgout.his.huawei.com ([185.176.79.56]:4471 "EHLO frasgout.his.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235612AbiAXRaY (ORCPT ); Mon, 24 Jan 2022 12:30:24 -0500 Received: from fraeml709-chm.china.huawei.com (unknown [172.18.147.206]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4JjH6x2Vvbz67MTk; Tue, 25 Jan 2022 01:30:01 +0800 (CST) Received: from lhreml710-chm.china.huawei.com (10.201.108.61) by fraeml709-chm.china.huawei.com (10.206.15.37) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Mon, 24 Jan 2022 18:30:22 +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; Mon, 24 Jan 2022 17:30:21 +0000 From: Jonathan Cameron To: , Marcel Apfelbaum , "Michael S . Tsirkin" , Igor Mammedov CC: , Ben Widawsky , =?utf-8?q?Alex_Benn=C3=A9e?= , Peter Maydell , , Shameerali Kolothum Thodi , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Saransh Gupta1 , Shreyas Shah , Chris Browy , Samarth Saxena , "Dan Williams" Subject: [PATCH v4 26/42] hw/cxl/device: Plumb real Label Storage Area (LSA) sizing Date: Mon, 24 Jan 2022 17:16:49 +0000 Message-ID: <20220124171705.10432-27-Jonathan.Cameron@huawei.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20220124171705.10432-1-Jonathan.Cameron@huawei.com> References: <20220124171705.10432-1-Jonathan.Cameron@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.122.247.231] X-ClientProxiedBy: lhreml740-chm.china.huawei.com (10.201.108.190) 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 | 24 +++++++++--------------- include/hw/cxl/cxl_device.h | 29 +++++++++++++++++++++++++++++ 3 files changed, 41 insertions(+), 15 deletions(-) diff --git a/hw/cxl/cxl-mailbox-utils.c b/hw/cxl/cxl-mailbox-utils.c index cbda963d8c..4009152b7e 100644 --- a/hw/cxl/cxl-mailbox-utils.c +++ b/hw/cxl/cxl-mailbox-utils.c @@ -321,6 +321,8 @@ define_mailbox_handler(IDENTIFY_MEMORY_DEVICE) } __attribute__((packed)) *id; _Static_assert(sizeof(*id) == 0x43, "Bad identify size"); + 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)) { @@ -335,6 +337,7 @@ define_mailbox_handler(IDENTIFY_MEMORY_DEVICE) 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 0033b1b28e..4835524f89 100644 --- a/hw/mem/cxl_type3.c +++ b/hw/mem/cxl_type3.c @@ -13,21 +13,6 @@ #include "sysemu/hostmem.h" #include "hw/cxl/cxl.h" -typedef struct cxl_type3_dev { - /* Private */ - PCIDevice parent_obj; - - /* Properties */ - uint64_t size; - HostMemoryBackend *hostmem; - - /* State */ - CXLComponentState cxl_cstate; - CXLDeviceState cxl_dstate; -} CXLType3Dev; - -#define CT3(obj) OBJECT_CHECK(CXLType3Dev, (obj), TYPE_CXL_TYPE3_DEV) - static void build_dvsecs(CXLType3Dev *ct3d) { CXLComponentState *cxl_cstate = &ct3d->cxl_cstate; @@ -186,10 +171,16 @@ 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; @@ -201,11 +192,14 @@ 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 3dde7fb1fb..effbfa106a 100644 --- a/include/hw/cxl/cxl_device.h +++ b/include/hw/cxl/cxl_device.h @@ -224,4 +224,33 @@ REG32(CXL_MEM_DEV_STS, 0) FIELD(CXL_MEM_DEV_STS, MBOX_READY, 4, 1) FIELD(CXL_MEM_DEV_STS, RESET_NEEDED, 5, 3) +typedef struct cxl_type3_dev { + /* Private */ + PCIDevice parent_obj; + + /* Properties */ + uint64_t size; + HostMemoryBackend *hostmem; + HostMemoryBackend *lsa; + + /* State */ + CXLComponentState cxl_cstate; + CXLDeviceState cxl_dstate; +} CXLType3Dev; + +#ifndef TYPE_CXL_TYPE3_DEV +#define TYPE_CXL_TYPE3_DEV "cxl-type3" +#endif + +#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