From patchwork Fri Jun 24 08:49:11 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Henrique Barboza X-Patchwork-Id: 12894230 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 EC0B6C43334 for ; Fri, 24 Jun 2022 09:16:13 +0000 (UTC) Received: from localhost ([::1]:41796 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1o4fQC-0001xY-QL for qemu-devel@archiver.kernel.org; Fri, 24 Jun 2022 05:16:12 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:43530) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1o4f0Q-00029I-HO; Fri, 24 Jun 2022 04:49:35 -0400 Received: from mail-oa1-x2e.google.com ([2001:4860:4864:20::2e]:34511) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1o4f0O-0000Ax-LE; Fri, 24 Jun 2022 04:49:34 -0400 Received: by mail-oa1-x2e.google.com with SMTP id 586e51a60fabf-101ab23ff3fso2943779fac.1; Fri, 24 Jun 2022 01:49:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=rLvchfMykXdOFtRg5yznDY/E14nVvlePhDQyhMWooUk=; b=aerh1ha20vdQQwxmNtNs7SzW3iR0XR8U1bmR47fz3T2QLmDvzM1rBA58sHllVDqfMt o0Q1vqbF8K3/Mcj5wggJwJ2OHAIQzySKBT9DKeSMBmcI9Qhp0bwJPRWhTkmNzLVKzmiF F22hll3f0SdnRAJjAP6u9CRyT8uS37C3S8SCZHbvFmfNSHqZffjfzO3gYPQgnmb80KSF ojtsUbL/SA8M1afUUYlvHqQRdRI+KZaahJ0e7BWcAQ2fZrkQJ1NDKuBnlZFxxVqzoeF1 oB2qrgJoP19wXEtW6BtcegVrTc92CfNZRxkb+cCFG3OW/u8/osLw5Bxp8dd2x/cFZWPi 6EOA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=rLvchfMykXdOFtRg5yznDY/E14nVvlePhDQyhMWooUk=; b=y9pDq9Db5hnk5rmV172EDi1e5t6vcG51UdhgF1yWAj8IRoD9+1nmLkCXtSGde6GAAI LY53+kOBYrz+WZHouGyzXewK0QCP+nuNsIKcommxwcZsNXTAMXg54Ffb0DhNZJZxWbkg nGs2xeYrQURQYv1KfqoaLz9n3+bx7vHUkldcbVx/vP2dbgREtl9g9LNj6m9izUQImmH5 NlwaLql/n+zO7pF43QlgM8chOoP9ThwWSc4IUATuBY/V3W4T1KkEVN1tFmoMrrnjVtEg sHK4RSNs1OroZRGbGcHcYumtsm3lsKFY8w3J/+BFnRoQg87ahFqFonb6PHs7uGblAUYv XOgA== X-Gm-Message-State: AJIora+q99n8DvUavqFEPkqfNlSFnelgBzjqxRyZyHFiVUnHMEctT2Ft qW1kbdBKSxtIulbKJGwiPqPqNsiWRUk= X-Google-Smtp-Source: AGRyM1sST8QfQwvyuiaycrOwpCXprGGnsq36B0gIjb6ukWzcrx3tMhSWQBoias3/D4AfxplTyfOvFQ== X-Received: by 2002:a05:6871:460f:b0:108:51e2:4545 with SMTP id nf15-20020a056871460f00b0010851e24545mr297207oab.280.1656060571040; Fri, 24 Jun 2022 01:49:31 -0700 (PDT) Received: from balboa.ibmmodules.com ([191.193.1.105]) by smtp.gmail.com with ESMTPSA id u8-20020a056830230800b0061698ef90e5sm1192768ote.31.2022.06.24.01.49.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 24 Jun 2022 01:49:30 -0700 (PDT) From: Daniel Henrique Barboza To: qemu-devel@nongnu.org Cc: qemu-ppc@nongnu.org, clg@kaod.org, fbarrat@linux.ibm.com, Daniel Henrique Barboza Subject: [PATCH v3 02/12] ppc/pnv: add PnvPHB base/proxy device Date: Fri, 24 Jun 2022 05:49:11 -0300 Message-Id: <20220624084921.399219-3-danielhb413@gmail.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220624084921.399219-1-danielhb413@gmail.com> References: <20220624084921.399219-1-danielhb413@gmail.com> MIME-Version: 1.0 Received-SPF: pass client-ip=2001:4860:4864:20::2e; envelope-from=danielhb413@gmail.com; helo=mail-oa1-x2e.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, 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" The PnvPHB device is going to be the base device for all other powernv PHBs. It consists of a device that has the same user API as the other PHB, namely being a PCIHostBridge and having chip-id and index properties. It also has a 'backend' pointer that will be initialized with the PHB implementation that the device is going to use. The initialization of the PHB backend is done by checking the PHB version via a 'version' attribute that can be set via a global machine property. The 'version' field will be used to make adjustments based on the running version, e.g. PHB3 uses a 'chip' reference while PHB4 uses 'pec'. To init the PnvPHB bus we'll rely on helpers for each version. The version 3 helper is already added (pnv_phb3_bus_init), the PHB4 helper will be added later on. For now let's add the basic logic of the PnvPHB object, which consists mostly of pnv_phb_realize() doing all the work of checking the phb->version set, initializing the proper backend, passing through its attributes to the chosen backend, finalizing the backend realize and adding a root port in the end. Signed-off-by: Daniel Henrique Barboza Reviewed-by: Frederic Barrat --- hw/pci-host/meson.build | 3 +- hw/pci-host/pnv_phb.c | 124 ++++++++++++++++++++++++++++++++++++++++ hw/pci-host/pnv_phb.h | 39 +++++++++++++ 3 files changed, 165 insertions(+), 1 deletion(-) create mode 100644 hw/pci-host/pnv_phb.c create mode 100644 hw/pci-host/pnv_phb.h diff --git a/hw/pci-host/meson.build b/hw/pci-host/meson.build index c07596d0d1..e832babc9d 100644 --- a/hw/pci-host/meson.build +++ b/hw/pci-host/meson.build @@ -35,5 +35,6 @@ specific_ss.add(when: 'CONFIG_PCI_POWERNV', if_true: files( 'pnv_phb3_msi.c', 'pnv_phb3_pbcq.c', 'pnv_phb4.c', - 'pnv_phb4_pec.c' + 'pnv_phb4_pec.c', + 'pnv_phb.c', )) diff --git a/hw/pci-host/pnv_phb.c b/hw/pci-host/pnv_phb.c new file mode 100644 index 0000000000..6fefff7d44 --- /dev/null +++ b/hw/pci-host/pnv_phb.c @@ -0,0 +1,124 @@ +/* + * QEMU PowerPC PowerNV Proxy PHB model + * + * Copyright (c) 2022, IBM Corporation. + * + * This code is licensed under the GPL version 2 or later. See the + * COPYING file in the top-level directory. + */ + +#include "qemu/osdep.h" +#include "qemu/log.h" +#include "qapi/visitor.h" +#include "qapi/error.h" +#include "hw/pci-host/pnv_phb.h" +#include "hw/pci-host/pnv_phb3.h" +#include "hw/pci-host/pnv_phb4.h" +#include "hw/ppc/pnv.h" +#include "hw/qdev-properties.h" +#include "qom/object.h" + + +static void pnv_phb_realize(DeviceState *dev, Error **errp) +{ + PnvPHB *phb = PNV_PHB(dev); + PCIHostState *pci = PCI_HOST_BRIDGE(dev); + g_autofree char *phb_typename = NULL; + g_autofree char *phb_rootport_typename = NULL; + + if (!phb->version) { + error_setg(errp, "version not specified"); + return; + } + + switch (phb->version) { + case 3: + phb_typename = g_strdup(TYPE_PNV_PHB3); + phb_rootport_typename = g_strdup(TYPE_PNV_PHB3_ROOT_PORT); + break; + case 4: + phb_typename = g_strdup(TYPE_PNV_PHB4); + phb_rootport_typename = g_strdup(TYPE_PNV_PHB4_ROOT_PORT); + break; + case 5: + phb_typename = g_strdup(TYPE_PNV_PHB5); + phb_rootport_typename = g_strdup(TYPE_PNV_PHB5_ROOT_PORT); + break; + default: + g_assert_not_reached(); + } + + phb->backend = object_new(phb_typename); + object_property_add_child(OBJECT(dev), "phb-backend", phb->backend); + + /* Passthrough child device properties to the proxy device */ + object_property_set_uint(phb->backend, "index", phb->phb_id, errp); + object_property_set_uint(phb->backend, "chip-id", phb->chip_id, errp); + object_property_set_link(phb->backend, "phb-base", OBJECT(phb), errp); + + if (phb->version == 3) { + object_property_set_link(phb->backend, "chip", + OBJECT(phb->chip), errp); + } else { + object_property_set_link(phb->backend, "pec", OBJECT(phb->pec), errp); + } + + if (!qdev_realize(DEVICE(phb->backend), NULL, errp)) { + return; + } + + if (phb->version == 3) { + pnv_phb3_bus_init(dev, PNV_PHB3(phb->backend)); + } + + pnv_phb_attach_root_port(pci, phb_rootport_typename, + phb->phb_id, phb->chip_id); +} + +static const char *pnv_phb_root_bus_path(PCIHostState *host_bridge, + PCIBus *rootbus) +{ + PnvPHB *phb = PNV_PHB(host_bridge); + + snprintf(phb->bus_path, sizeof(phb->bus_path), "00%02x:%02x", + phb->chip_id, phb->phb_id); + return phb->bus_path; +} + +static Property pnv_phb_properties[] = { + DEFINE_PROP_UINT32("index", PnvPHB, phb_id, 0), + DEFINE_PROP_UINT32("chip-id", PnvPHB, chip_id, 0), + DEFINE_PROP_UINT32("version", PnvPHB, version, 0), + + DEFINE_PROP_LINK("chip", PnvPHB, chip, TYPE_PNV_CHIP, PnvChip *), + + DEFINE_PROP_LINK("pec", PnvPHB, pec, TYPE_PNV_PHB4_PEC, + PnvPhb4PecState *), + + DEFINE_PROP_END_OF_LIST(), +}; + +static void pnv_phb_class_init(ObjectClass *klass, void *data) +{ + PCIHostBridgeClass *hc = PCI_HOST_BRIDGE_CLASS(klass); + DeviceClass *dc = DEVICE_CLASS(klass); + + hc->root_bus_path = pnv_phb_root_bus_path; + dc->realize = pnv_phb_realize; + device_class_set_props(dc, pnv_phb_properties); + set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); + dc->user_creatable = false; +} + +static void pnv_phb_register_type(void) +{ + static const TypeInfo pnv_phb_type_info = { + .name = TYPE_PNV_PHB, + .parent = TYPE_PCIE_HOST_BRIDGE, + .instance_size = sizeof(PnvPHB), + .class_init = pnv_phb_class_init, + }; + + type_register_static(&pnv_phb_type_info); +} +type_init(pnv_phb_register_type) diff --git a/hw/pci-host/pnv_phb.h b/hw/pci-host/pnv_phb.h new file mode 100644 index 0000000000..a7cc8610e2 --- /dev/null +++ b/hw/pci-host/pnv_phb.h @@ -0,0 +1,39 @@ +/* + * QEMU PowerPC PowerNV Proxy PHB model + * + * Copyright (c) 2022, IBM Corporation. + * + * This code is licensed under the GPL version 2 or later. See the + * COPYING file in the top-level directory. + */ + +#ifndef PCI_HOST_PNV_PHB_H +#define PCI_HOST_PNV_PHB_H + +#include "hw/pci/pcie_host.h" +#include "hw/pci/pcie_port.h" +#include "qom/object.h" + +typedef struct PnvChip PnvChip; +typedef struct PnvPhb4PecState PnvPhb4PecState; + +struct PnvPHB { + PCIExpressHost parent_obj; + + uint32_t chip_id; + uint32_t phb_id; + uint32_t version; + char bus_path[8]; + + PnvChip *chip; + + PnvPhb4PecState *pec; + + /* The PHB backend (PnvPHB3, PnvPHB4 ...) being used */ + Object *backend; +}; + +#define TYPE_PNV_PHB "pnv-phb" +OBJECT_DECLARE_SIMPLE_TYPE(PnvPHB, PNV_PHB) + +#endif /* PCI_HOST_PNV_PHB_H */