From mboxrd@z Thu Jan 1 00:00:00 1970 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 214E0C43334 for ; Thu, 2 Jun 2022 20:47:22 +0000 (UTC) Received: from localhost ([::1]:40368 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nwriz-0004Zp-Eq for qemu-devel@archiver.kernel.org; Thu, 02 Jun 2022 16:47:21 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:51952) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nwrhh-0003s4-Jl; Thu, 02 Jun 2022 16:46:03 -0400 Received: from mail-oa1-x2d.google.com ([2001:4860:4864:20::2d]:46028) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1nwrhf-0007GJ-K4; Thu, 02 Jun 2022 16:46:01 -0400 Received: by mail-oa1-x2d.google.com with SMTP id 586e51a60fabf-e93bbb54f9so8221805fac.12; Thu, 02 Jun 2022 13:45:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=message-id:date:mime-version:user-agent:subject:content-language:to :cc:references:from:in-reply-to:content-transfer-encoding; bh=BAnsXdamLPs3cyLpqdxiRu1D9OGzTIKFzNtrIMQIP6Q=; b=RlwnpoMS27ym+Alswvhmu/A6G2QmCvQ+eWfk+xtsiMVPs3t73TH907hPvx3ntsGZkL gF9ahRQesNOGC0PhJgdSN0SV7EojgYTW8e7cttP7UsYAnTKdj97d4teWKCCWxQNRl56u ajXjZSAdW3lAJKOo68X4xPvwSAwidRLbcAMF9vKOJ5KBbvv1X9Zy3f0yjCb4EF0/XfAS /RaKAc0WWK01h55SSo2564kLtXxVIiA5X323BQGZTwfmVvWtecumo4jJoPOhN9RKzPQ6 EnZy+9SdcB3LCGgriblPmy6/9FklmnoEo7BiabLfHeHvu80hTqZTRKz70s9psG5MIuzh 0mKw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:subject :content-language:to:cc:references:from:in-reply-to :content-transfer-encoding; bh=BAnsXdamLPs3cyLpqdxiRu1D9OGzTIKFzNtrIMQIP6Q=; b=apX62xyL4s7t15bN90rGRSL6yBvIMFbhh21rjdI+AxaJL5UvDQEJsBuWk2a+lzLIhI JqAfdyIgtfwgQzDVH6DvebORaELGiwlZPq8CXLxSm9y3R7j1i1OiFankLCjvZ8J5UOsC Hxe95DNOhZ9tDavysgAPgK2J6vunos7k9blpEnI+4ulZ0bTR94JOjy44eTSh18PGgll4 BcCNJlf+/Rv9thOXwat/HuoMbu5miIclWDZb8S+oH24QHxSs558ywMK354vD5uz91wCx e5JnqSQ8nvLTRTGH+qxw+JgPhorLzA5q+51Ju5C94EJvtHf6LO7KLeq82ACteL7PUJ0c W5vw== X-Gm-Message-State: AOAM530UH5y1TWwnlKJa1KFm3esmnYqE88bB8hjOmQD5r8cfR1Q8S0XW 1+/r0/39r6GtHaQ04iSg6VQ= X-Google-Smtp-Source: ABdhPJw2hfjxxV3oA3dKDaGZyXNYn3Bwm1YkXMmRvg6bRTT0qVVXgJ2SgzGfnO26l/NCB/diCDi2qA== X-Received: by 2002:a05:6870:1485:b0:f3:bd4:aab0 with SMTP id k5-20020a056870148500b000f30bd4aab0mr4023141oab.229.1654202757743; Thu, 02 Jun 2022 13:45:57 -0700 (PDT) Received: from [192.168.10.102] ([152.250.93.219]) by smtp.gmail.com with ESMTPSA id m19-20020a056820051300b0035eb4e5a6b0sm3156989ooj.6.2022.06.02.13.45.55 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 02 Jun 2022 13:45:57 -0700 (PDT) Message-ID: <81a7dd2b-ff66-1f08-39bb-fa02141098eb@gmail.com> Date: Thu, 2 Jun 2022 17:45:53 -0300 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.9.1 Subject: Re: [PATCH v2 03/16] ppc/pnv: add PnvPHB base/proxy device Content-Language: en-US To: Mark Cave-Ayland , qemu-devel@nongnu.org Cc: qemu-ppc@nongnu.org, david@gibson.dropbear.id.au, clg@kaod.org, fbarrat@linux.ibm.com References: <20220531214917.31668-1-danielhb413@gmail.com> <20220531214917.31668-4-danielhb413@gmail.com> From: Daniel Henrique Barboza In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2001:4860:4864:20::2d; envelope-from=danielhb413@gmail.com; helo=mail-oa1-x2d.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, NICE_REPLY_A=-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" On 6/2/22 04:18, Mark Cave-Ayland wrote: > On 31/05/2022 22:49, Daniel Henrique Barboza wrote: > >> 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 >> --- >>   hw/pci-host/meson.build |   3 +- >>   hw/pci-host/pnv_phb.c   | 123 ++++++++++++++++++++++++++++++++++++++++ >>   hw/pci-host/pnv_phb.h   |  39 +++++++++++++ >>   3 files changed, 164 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..fa8472622f >> --- /dev/null >> +++ b/hw/pci-host/pnv_phb.c >> @@ -0,0 +1,123 @@ >> +/* >> + * 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-device", 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, (PnvPHB3 *)phb->backend); >> +    } >> + >> +    pnv_phb_attach_root_port(pci, phb_rootport_typename); >> +} >> + >> +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(), >> +}; > > Looks like some odd spacing has crept into the pnv_phb_properties[] array above? Hm, I'm pretty sure there's some other instances of these spaces around the pnv code. I'll fix this up and go after them. Daniel > >> +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 = true; >> +} >> + >> +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 */ > > > ATB, > > Mark.