From patchwork Wed Feb 2 14:10:27 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 12733197 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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 60C61C433F5 for ; Wed, 2 Feb 2022 15:54:45 +0000 (UTC) Received: from localhost ([::1]:33934 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nFHy0-0004Ra-2O for qemu-devel@archiver.kernel.org; Wed, 02 Feb 2022 10:54:44 -0500 Received: from eggs.gnu.org ([209.51.188.92]:59606) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nFGbt-0007Ca-HJ for qemu-devel@nongnu.org; Wed, 02 Feb 2022 09:27:53 -0500 Received: from frasgout.his.huawei.com ([185.176.79.56]:2261) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nFGbg-00028p-N8 for qemu-devel@nongnu.org; Wed, 02 Feb 2022 09:27:47 -0500 Received: from fraeml704-chm.china.huawei.com (unknown [172.18.147.201]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4JpkXn0vNxz67xDg; Wed, 2 Feb 2022 22:22:49 +0800 (CST) Received: from lhreml710-chm.china.huawei.com (10.201.108.61) by fraeml704-chm.china.huawei.com (10.206.15.53) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.21; Wed, 2 Feb 2022 15:27:30 +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; Wed, 2 Feb 2022 14:27:29 +0000 To: , =?utf-8?q?Alex_Benn=C3=A9e?= , Marcel Apfelbaum , "Michael S . Tsirkin" , Igor Mammedov CC: , Ben Widawsky , "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 v5 33/43] CXL/cxl_component: Add cxl_get_hb_cstate() Date: Wed, 2 Feb 2022 14:10:27 +0000 Message-ID: <20220202141037.17352-34-Jonathan.Cameron@huawei.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20220202141037.17352-1-Jonathan.Cameron@huawei.com> References: <20220202141037.17352-1-Jonathan.Cameron@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.122.247.231] X-ClientProxiedBy: lhreml743-chm.china.huawei.com (10.201.108.193) To lhreml710-chm.china.huawei.com (10.201.108.61) X-CFilter-Loop: Reflected Received-SPF: pass client-ip=185.176.79.56; envelope-from=jonathan.cameron@huawei.com; helo=frasgout.his.huawei.com X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Reply-to: Jonathan Cameron X-Patchwork-Original-From: Jonathan Cameron via From: Jonathan Cameron From: Jonathan Cameron Accessor to get hold of the cxl state for a CXL host bridge without exposing the internals of the implementation. Signed-off-by: Jonathan Cameron --- hw/pci-bridge/pci_expander_bridge.c | 7 +++++++ include/hw/cxl/cxl_component.h | 2 ++ 2 files changed, 9 insertions(+) diff --git a/hw/pci-bridge/pci_expander_bridge.c b/hw/pci-bridge/pci_expander_bridge.c index 9a2710c067..d53efb09a3 100644 --- a/hw/pci-bridge/pci_expander_bridge.c +++ b/hw/pci-bridge/pci_expander_bridge.c @@ -81,6 +81,13 @@ static GList *pxb_dev_list; #define TYPE_PXB_CXL_HOST "pxb-cxl-host" #define PXB_CXL_HOST(obj) OBJECT_CHECK(CXLHost, (obj), TYPE_PXB_CXL_HOST) +CXLComponentState *cxl_get_hb_cstate(PCIHostState *hb) +{ + CXLHost *host = PXB_CXL_HOST(hb); + + return &host->cxl_cstate; +} + static int pxb_bus_num(PCIBus *bus) { PXBDev *pxb = convert_to_pxb(bus->parent_dev); diff --git a/include/hw/cxl/cxl_component.h b/include/hw/cxl/cxl_component.h index 42cd140f75..29d7268275 100644 --- a/include/hw/cxl/cxl_component.h +++ b/include/hw/cxl/cxl_component.h @@ -201,4 +201,6 @@ static inline hwaddr cxl_decode_ig(int ig) return 1 << (ig + 8); } +CXLComponentState *cxl_get_hb_cstate(PCIHostState *hb); + #endif