From patchwork Fri Mar 18 15:06:20 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 12785472 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 32B6FC433F5 for ; Fri, 18 Mar 2022 15:22:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237915AbiCRPXn (ORCPT ); Fri, 18 Mar 2022 11:23:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43756 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230263AbiCRPXm (ORCPT ); Fri, 18 Mar 2022 11:23:42 -0400 Received: from frasgout.his.huawei.com (frasgout.his.huawei.com [185.176.79.56]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 56B0D261DFF for ; Fri, 18 Mar 2022 08:22:23 -0700 (PDT) Received: from fraeml711-chm.china.huawei.com (unknown [172.18.147.226]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4KKnkt5L56z6H6my; Fri, 18 Mar 2022 23:20:22 +0800 (CST) Received: from lhreml710-chm.china.huawei.com (10.201.108.61) by fraeml711-chm.china.huawei.com (10.206.15.60) 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 16:22:21 +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 15:22:20 +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 31/46] CXL/cxl_component: Add cxl_get_hb_cstate() Date: Fri, 18 Mar 2022 15:06:20 +0000 Message-ID: <20220318150635.24600-32-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: 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 Reviewed-by: Alex Bennée --- 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 e11a967916..de534c44ab 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 8dae21cfc6..65779ce7ed 100644 --- a/include/hw/cxl/cxl_component.h +++ b/include/hw/cxl/cxl_component.h @@ -202,4 +202,6 @@ static inline hwaddr cxl_decode_ig(int ig) return 1 << (ig + 8); } +CXLComponentState *cxl_get_hb_cstate(PCIHostState *hb); + #endif