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Fri, 26 Jan 2024 03:40:30 +0000 Received: from smtpav06.dal12v.mail.ibm.com (smtpav06.dal12v.mail.ibm.com [10.241.53.105]) by smtprelay01.wdc07v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 40Q3eTfb54198648 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 26 Jan 2024 03:40:30 GMT Received: from smtpav06.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 8D7C55805E; Fri, 26 Jan 2024 03:40:29 +0000 (GMT) Received: from smtpav06.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 4CAA458059; Fri, 26 Jan 2024 03:40:29 +0000 (GMT) Received: from gfwa153.aus.stglabs.ibm.com (unknown [9.3.84.127]) by smtpav06.dal12v.mail.ibm.com (Postfix) with ESMTP; Fri, 26 Jan 2024 03:40:29 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type : content-transfer-encoding; s=pp1; bh=d7cyoIe+i8ZQ5fAWFzEgbckeRRqpqY7M5F1Z4rhi3LM=; b=nh0L8uswgU3eRSb4Vwoq+8oxbcoBSdR7rO769MB5PwkdAXKJ2yIeFX9TBK8sYYCu2ZQ0 w1ex/SRGdoQgSXpVT3ILki+lD0V2PGdwmy2IbTyCIzDwFUbJdR2ROfiNOAGpsyMvPGna ZQHTF4EntsUFXxDv9UxkdrKCMpk3ZMLiuc5lxSpA+Zh8pXw9dy2NQVEVqiTUr6A1p/6c NAXmqlS/UiymuAeH6yhLkgQXoPt0d2O3Kdrgd0BYMvgV1oe897dmrBoCjlnl83FHNpHU /atjrjtiamanKXflHKdIl92hPARWXax5b0FaI9wZirp31awf4WrvRCoKxeG5W7CSlqjN OA== From: Ninad Palsule To: qemu-devel@nongnu.org, clg@kaod.org, peter.maydell@linaro.org, andrew@codeconstruct.com.au, joel@jms.id.au, pbonzini@redhat.com, marcandre.lureau@redhat.com, berrange@redhat.com, thuth@redhat.com, philmd@linaro.org, lvivier@redhat.com Cc: Ninad Palsule , qemu-arm@nongnu.org, Andrew Jeffery Subject: [PATCH v11 01/11] hw/fsi: Introduce IBM's Local bus Date: Thu, 25 Jan 2024 21:40:16 -0600 Message-Id: <20240126034026.31068-2-ninad@linux.ibm.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240126034026.31068-1-ninad@linux.ibm.com> References: <20240126034026.31068-1-ninad@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: te2_O-YDQ2E4QMOyeqenhxhn9BkGARAr X-Proofpoint-GUID: cCZp9xpVXqKBH-4hCb4SjxNzmgSpdpwQ X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-01-25_14,2024-01-25_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 clxscore=1015 mlxlogscore=906 spamscore=0 mlxscore=0 lowpriorityscore=0 phishscore=0 impostorscore=0 adultscore=0 bulkscore=0 suspectscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2401260024 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=148.163.156.1; envelope-from=ninad@linux.ibm.com; helo=mx0a-001b2d01.pphosted.com X-Spam_score_int: -19 X-Spam_score: -2.0 X-Spam_bar: -- X-Spam_report: (-2.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @ibm.com) X-ZM-MESSAGEID: 1706240586193100002 This is a part of patchset where IBM's Flexible Service Interface is introduced. The LBUS is modelled to maintain mapped memory for the devices. The memory is mapped after CFAM config, peek table and FSI slave registers. Signed-off-by: Andrew Jeffery [ clg: - removed lbus_add_device() bc unused - removed lbus_create_device() bc used only once - removed "address" property - updated meson.build to build fsi dir - included an empty hw/fsi/trace-events ] Signed-off-by: C=C3=A9dric Le Goater Signed-off-by: Ninad Palsule Reviewed-by: C=C3=A9dric Le Goater --- v9: - Changed LBUS memory region to 1MB. v11: - Split lbus and scratchpad into separate patches. - Added fsi_ prefix for all functions in lbus. - Removed FSI_LBUS* typedefs. - Replaced for loop with memset. --- meson.build | 1 + hw/fsi/trace.h | 1 + include/hw/fsi/lbus.h | 32 ++++++++++++++++++++++++++++++++ hw/fsi/lbus.c | 43 +++++++++++++++++++++++++++++++++++++++++++ hw/Kconfig | 1 + hw/fsi/Kconfig | 2 ++ hw/fsi/meson.build | 1 + hw/fsi/trace-events | 0 hw/meson.build | 1 + 9 files changed, 82 insertions(+) create mode 100644 hw/fsi/trace.h create mode 100644 include/hw/fsi/lbus.h create mode 100644 hw/fsi/lbus.c create mode 100644 hw/fsi/Kconfig create mode 100644 hw/fsi/meson.build create mode 100644 hw/fsi/trace-events diff --git a/meson.build b/meson.build index d0329966f1..7d926c6e82 100644 --- a/meson.build +++ b/meson.build @@ -3290,6 +3290,7 @@ if have_system 'hw/char', 'hw/display', 'hw/dma', + 'hw/fsi', 'hw/hyperv', 'hw/i2c', 'hw/i386', diff --git a/hw/fsi/trace.h b/hw/fsi/trace.h new file mode 100644 index 0000000000..ee67c7fb04 --- /dev/null +++ b/hw/fsi/trace.h @@ -0,0 +1 @@ +#include "trace/trace-hw_fsi.h" diff --git a/include/hw/fsi/lbus.h b/include/hw/fsi/lbus.h new file mode 100644 index 0000000000..e8a22e22a8 --- /dev/null +++ b/include/hw/fsi/lbus.h @@ -0,0 +1,32 @@ +/* + * SPDX-License-Identifier: GPL-2.0-or-later + * Copyright (C) 2024 IBM Corp. + * + * IBM Local bus and connected device structures. + */ +#ifndef FSI_LBUS_H +#define FSI_LBUS_H + +#include "hw/qdev-core.h" +#include "qemu/units.h" +#include "exec/memory.h" + +#define TYPE_FSI_LBUS_DEVICE "fsi.lbus.device" +OBJECT_DECLARE_SIMPLE_TYPE(FSILBusDevice, FSI_LBUS_DEVICE) + +typedef struct FSILBusDevice { + DeviceState parent; + + MemoryRegion iomem; +} FSILBusDevice; + +#define TYPE_FSI_LBUS "fsi.lbus" +OBJECT_DECLARE_SIMPLE_TYPE(FSILBus, FSI_LBUS) + +typedef struct FSILBus { + BusState bus; + + MemoryRegion mr; +} FSILBus; + +#endif /* FSI_LBUS_H */ diff --git a/hw/fsi/lbus.c b/hw/fsi/lbus.c new file mode 100644 index 0000000000..44d2319087 --- /dev/null +++ b/hw/fsi/lbus.c @@ -0,0 +1,43 @@ +/* + * SPDX-License-Identifier: GPL-2.0-or-later + * Copyright (C) 2024 IBM Corp. + * + * IBM Local bus where FSI slaves are connected + */ + +#include "qemu/osdep.h" +#include "qapi/error.h" +#include "hw/fsi/lbus.h" + +#include "hw/qdev-properties.h" + +#include "trace.h" + +static void fsi_lbus_init(Object *o) +{ + FSILBus *lbus =3D FSI_LBUS(o); + + memory_region_init(&lbus->mr, OBJECT(lbus), TYPE_FSI_LBUS, 1 * MiB); +} + +static const TypeInfo fsi_lbus_info =3D { + .name =3D TYPE_FSI_LBUS, + .parent =3D TYPE_BUS, + .instance_init =3D fsi_lbus_init, + .instance_size =3D sizeof(FSILBus), +}; + +static const TypeInfo fsi_lbus_device_type_info =3D { + .name =3D TYPE_FSI_LBUS_DEVICE, + .parent =3D TYPE_DEVICE, + .instance_size =3D sizeof(FSILBusDevice), + .abstract =3D true, +}; + +static void fsi_lbus_register_types(void) +{ + type_register_static(&fsi_lbus_info); + type_register_static(&fsi_lbus_device_type_info); +} + +type_init(fsi_lbus_register_types); diff --git a/hw/Kconfig b/hw/Kconfig index 9ca7b38c31..2c00936c28 100644 --- a/hw/Kconfig +++ b/hw/Kconfig @@ -9,6 +9,7 @@ source core/Kconfig source cxl/Kconfig source display/Kconfig source dma/Kconfig +source fsi/Kconfig source gpio/Kconfig source hyperv/Kconfig source i2c/Kconfig diff --git a/hw/fsi/Kconfig b/hw/fsi/Kconfig new file mode 100644 index 0000000000..9c34a418d7 --- /dev/null +++ b/hw/fsi/Kconfig @@ -0,0 +1,2 @@ +config FSI + bool diff --git a/hw/fsi/meson.build b/hw/fsi/meson.build new file mode 100644 index 0000000000..93ba19dd04 --- /dev/null +++ b/hw/fsi/meson.build @@ -0,0 +1 @@ +system_ss.add(when: 'CONFIG_FSI', if_true: files('lbus.c')) diff --git a/hw/fsi/trace-events b/hw/fsi/trace-events new file mode 100644 index 0000000000..e69de29bb2 diff --git a/hw/meson.build b/hw/meson.build index f01fac4617..463d702683 100644 --- a/hw/meson.build +++ b/hw/meson.build @@ -44,6 +44,7 @@ subdir('virtio') subdir('watchdog') subdir('xen') subdir('xenpv') +subdir('fsi') =20 subdir('alpha') subdir('arm') --=20 2.39.2 From nobody Tue Nov 26 14:47:27 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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Fri, 26 Jan 2024 03:40:30 +0000 Received: from smtpav06.dal12v.mail.ibm.com (smtpav06.dal12v.mail.ibm.com [10.241.53.105]) by smtprelay01.wdc07v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 40Q3eUsI41615822 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 26 Jan 2024 03:40:30 GMT Received: from smtpav06.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id D91F658060; Fri, 26 Jan 2024 03:40:29 +0000 (GMT) Received: from smtpav06.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 97BAB5805F; Fri, 26 Jan 2024 03:40:29 +0000 (GMT) Received: from gfwa153.aus.stglabs.ibm.com (unknown [9.3.84.127]) by smtpav06.dal12v.mail.ibm.com (Postfix) with ESMTP; Fri, 26 Jan 2024 03:40:29 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type : content-transfer-encoding; s=pp1; bh=KbtYmqWmVOsGd2xX0AsDjFOgFjoslsO11DjtE0kbtFI=; b=rag+xhvWAMa5BcZQFzjKnE9cq5vKM5g4dAcWZzToUOmJmK0IwpzpO337Al21trD5j6EJ I6CfFm9TZAL6DwPXVnhULvKBssEMUWkJsaUvwXJFI2M1mo0QeFfeeg1LzOP4oZCqp3U7 5BV1l2MG/TtbuhFjo6KJisPL+NKFBt22lrs8kMCTnfR5XxGFT4CzG/ioP7WqKvbne311 mAxsop/DMkla5C3Ss8WJ2Q7i2Rq90mn/bUSsGWnQhhc/OfIsha/7CggJnnMPEiEJLg9s uEJYZLg6gkOmXTjwHG4TlEUlN2CInMIIGu6A++xgV2NHg8mfW5KZoCxQb9sHQFqZXK4a aw== From: Ninad Palsule To: qemu-devel@nongnu.org, clg@kaod.org, peter.maydell@linaro.org, andrew@codeconstruct.com.au, joel@jms.id.au, pbonzini@redhat.com, marcandre.lureau@redhat.com, berrange@redhat.com, thuth@redhat.com, philmd@linaro.org, lvivier@redhat.com Cc: Ninad Palsule , qemu-arm@nongnu.org, Andrew Jeffery Subject: [PATCH v11 02/11] hw/fsi: Introduce IBM's scratchpad device Date: Thu, 25 Jan 2024 21:40:17 -0600 Message-Id: <20240126034026.31068-3-ninad@linux.ibm.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240126034026.31068-1-ninad@linux.ibm.com> References: <20240126034026.31068-1-ninad@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: x3IIOykEAwn_Lzn7EoA88QBDDPB1vMqO X-Proofpoint-GUID: riyWkh8wJdCuURuJnAknn_VIpEdW_syh X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-01-25_14,2024-01-25_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 lowpriorityscore=0 clxscore=1015 suspectscore=0 impostorscore=0 malwarescore=0 spamscore=0 phishscore=0 bulkscore=0 priorityscore=1501 mlxlogscore=742 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2401260024 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=148.163.156.1; envelope-from=ninad@linux.ibm.com; helo=mx0a-001b2d01.pphosted.com X-Spam_score_int: -19 X-Spam_score: -2.0 X-Spam_bar: -- X-Spam_report: (-2.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @ibm.com) X-ZM-MESSAGEID: 1706240592130100001 This is a part of patchset where IBM's Flexible Service Interface is introduced. The scratchpad provides a set of non-functional registers. The firmware is free to use them, hardware does not support any special management support. The scratchpad registers can be read or written from LBUS slave. The scratch pad is managed under FSI CFAM state. Signed-off-by: Andrew Jeffery [ clg: - moved object FSIScratchPad under FSICFAMState - moved FSIScratchPad code under cfam.c ] Signed-off-by: C=C3=A9dric Le Goater Signed-off-by: Ninad Palsule Reviewed-by: C=C3=A9dric Le Goater --- include/hw/fsi/lbus.h | 11 +++++++ hw/fsi/lbus.c | 69 +++++++++++++++++++++++++++++++++++++++++++ hw/fsi/trace-events | 2 ++ 3 files changed, 82 insertions(+) diff --git a/include/hw/fsi/lbus.h b/include/hw/fsi/lbus.h index e8a22e22a8..558268c013 100644 --- a/include/hw/fsi/lbus.h +++ b/include/hw/fsi/lbus.h @@ -29,4 +29,15 @@ typedef struct FSILBus { MemoryRegion mr; } FSILBus; =20 +#define TYPE_FSI_SCRATCHPAD "fsi.scratchpad" +#define SCRATCHPAD(obj) OBJECT_CHECK(FSIScratchPad, (obj), TYPE_FSI_SCRATC= HPAD) + +#define FSI_SCRATCHPAD_NR_REGS 4 + +typedef struct FSIScratchPad { + FSILBusDevice parent; + + uint32_t regs[FSI_SCRATCHPAD_NR_REGS]; +} FSIScratchPad; + #endif /* FSI_LBUS_H */ diff --git a/hw/fsi/lbus.c b/hw/fsi/lbus.c index 44d2319087..5ab7d0a741 100644 --- a/hw/fsi/lbus.c +++ b/hw/fsi/lbus.c @@ -13,6 +13,8 @@ =20 #include "trace.h" =20 +#define TO_REG(offset) ((offset) >> 2) + static void fsi_lbus_init(Object *o) { FSILBus *lbus =3D FSI_LBUS(o); @@ -34,10 +36,77 @@ static const TypeInfo fsi_lbus_device_type_info =3D { .abstract =3D true, }; =20 +static uint64_t fsi_scratchpad_read(void *opaque, hwaddr addr, unsigned si= ze) +{ + FSIScratchPad *s =3D SCRATCHPAD(opaque); + int reg =3D TO_REG(addr); + + trace_fsi_scratchpad_read(addr, size); + + if (reg >=3D FSI_SCRATCHPAD_NR_REGS) { + return 0; + } + + return s->regs[reg]; +} + +static void fsi_scratchpad_write(void *opaque, hwaddr addr, uint64_t data, + unsigned size) +{ + FSIScratchPad *s =3D SCRATCHPAD(opaque); + + trace_fsi_scratchpad_write(addr, size, data); + int reg =3D TO_REG(addr); + + if (reg >=3D FSI_SCRATCHPAD_NR_REGS) { + return; + } + + s->regs[reg] =3D data; +} + +static const struct MemoryRegionOps scratchpad_ops =3D { + .read =3D fsi_scratchpad_read, + .write =3D fsi_scratchpad_write, + .endianness =3D DEVICE_BIG_ENDIAN, +}; + +static void fsi_scratchpad_realize(DeviceState *dev, Error **errp) +{ + FSILBusDevice *ldev =3D FSI_LBUS_DEVICE(dev); + + memory_region_init_io(&ldev->iomem, OBJECT(ldev), &scratchpad_ops, + ldev, TYPE_FSI_SCRATCHPAD, 0x400); +} + +static void fsi_scratchpad_reset(DeviceState *dev) +{ + FSIScratchPad *s =3D SCRATCHPAD(dev); + + memset(s->regs, 0, sizeof(s->regs)); +} + +static void fsi_scratchpad_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc =3D DEVICE_CLASS(klass); + + dc->bus_type =3D TYPE_FSI_LBUS; + dc->realize =3D fsi_scratchpad_realize; + dc->reset =3D fsi_scratchpad_reset; +} + +static const TypeInfo fsi_scratchpad_info =3D { + .name =3D TYPE_FSI_SCRATCHPAD, + .parent =3D TYPE_FSI_LBUS_DEVICE, + .instance_size =3D sizeof(FSIScratchPad), + .class_init =3D fsi_scratchpad_class_init, +}; + static void fsi_lbus_register_types(void) { type_register_static(&fsi_lbus_info); type_register_static(&fsi_lbus_device_type_info); + type_register_static(&fsi_scratchpad_info); } =20 type_init(fsi_lbus_register_types); diff --git a/hw/fsi/trace-events b/hw/fsi/trace-events index e69de29bb2..c5753e2791 100644 --- a/hw/fsi/trace-events +++ b/hw/fsi/trace-events @@ -0,0 +1,2 @@ +fsi_scratchpad_read(uint64_t addr, uint32_t size) "@0x%" PRIx64 " size=3D%= d" +fsi_scratchpad_write(uint64_t addr, uint32_t size, uint64_t data) "@0x%" P= RIx64 " size=3D%d value=3D0x%"PRIx64 --=20 2.39.2 From nobody Tue Nov 26 14:47:27 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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Fri, 26 Jan 2024 03:40:30 +0000 Received: from smtpav06.dal12v.mail.ibm.com (smtpav06.dal12v.mail.ibm.com [10.241.53.105]) by smtprelay02.wdc07v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 40Q3eUj418219594 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 26 Jan 2024 03:40:30 GMT Received: from smtpav06.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 2FD5C5805D; Fri, 26 Jan 2024 03:40:30 +0000 (GMT) Received: from smtpav06.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id E2F6D58043; Fri, 26 Jan 2024 03:40:29 +0000 (GMT) Received: from gfwa153.aus.stglabs.ibm.com (unknown [9.3.84.127]) by smtpav06.dal12v.mail.ibm.com (Postfix) with ESMTP; Fri, 26 Jan 2024 03:40:29 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type : content-transfer-encoding; s=pp1; bh=Lb12eo0TCXkBl1ZxMZIUwJQLB6il4Zanesrv81jlf7E=; b=AI8AI8aH+DxwHMhqc+fjTH25J7NswG74OJanOCtGfZP2zovbi6Uu250h/9zYMVBb4Ncy sjeMvcl+bG7ljCB91GMBXEt8oPnCD3VKHVB39EwT1USUsCfUcfTkIbXfHgAyItd03G2g Es1Hc6Ahh6XYc6AO6hhGGgfxmhqiwgv0DpNraT5pAqHbn35fFdhAi/YJnElTpZXUbhpk N9xaa/zWAkNP2idgQCmrOvbNs4E4sXByd1UX59fhYxAILrHIi4HmLqDPTdc96GPQguJF S/wRHVkgYcDlYzHDn/pOXSMGZfTNaTJlpgqGfckUcNb9/6j9xiJvp4yULDT/Vx8P0tlS ew== From: Ninad Palsule To: qemu-devel@nongnu.org, clg@kaod.org, peter.maydell@linaro.org, andrew@codeconstruct.com.au, joel@jms.id.au, pbonzini@redhat.com, marcandre.lureau@redhat.com, berrange@redhat.com, thuth@redhat.com, philmd@linaro.org, lvivier@redhat.com Cc: Ninad Palsule , qemu-arm@nongnu.org, Andrew Jeffery Subject: [PATCH v11 03/11] hw/fsi: Introduce IBM's FSI Bus Date: Thu, 25 Jan 2024 21:40:18 -0600 Message-Id: <20240126034026.31068-4-ninad@linux.ibm.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240126034026.31068-1-ninad@linux.ibm.com> References: <20240126034026.31068-1-ninad@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: 29lY_DSwkU8qNtx9WTH1qx8exlWs9Wrt X-Proofpoint-GUID: YdqzujI5PZ3yCZfyd6SIQZi9mACmrgzN X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-01-25_14,2024-01-25_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=577 spamscore=0 clxscore=1015 mlxscore=0 suspectscore=0 priorityscore=1501 impostorscore=0 phishscore=0 lowpriorityscore=0 adultscore=0 bulkscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2401260024 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=148.163.158.5; envelope-from=ninad@linux.ibm.com; helo=mx0b-001b2d01.pphosted.com X-Spam_score_int: -19 X-Spam_score: -2.0 X-Spam_bar: -- X-Spam_report: (-2.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @ibm.com) X-ZM-MESSAGEID: 1706240502361100006 This is a part of patchset where FSI bus is introduced. The FSI bus is a simple bus where FSI master is attached. Signed-off-by: Andrew Jeffery [ clg: - removed include/hw/fsi/engine-scratchpad.h and hw/fsi/engine-scratchpad.c - dropped FSI_SCRATCHPAD - included FSIBus definition - dropped hw/fsi/trace-events changes ] Signed-off-by: C=C3=A9dric Le Goater Signed-off-by: Ninad Palsule Reviewed-by: C=C3=A9dric Le Goater --- v11: - Split the patch. --- include/hw/fsi/fsi.h | 19 +++++++++++++++++++ hw/fsi/fsi.c | 22 ++++++++++++++++++++++ hw/fsi/meson.build | 2 +- 3 files changed, 42 insertions(+), 1 deletion(-) create mode 100644 include/hw/fsi/fsi.h create mode 100644 hw/fsi/fsi.c diff --git a/include/hw/fsi/fsi.h b/include/hw/fsi/fsi.h new file mode 100644 index 0000000000..50e8f5c888 --- /dev/null +++ b/include/hw/fsi/fsi.h @@ -0,0 +1,19 @@ +/* + * SPDX-License-Identifier: GPL-2.0-or-later + * Copyright (C) 2024 IBM Corp. + * + * IBM Flexible Service Interface + */ +#ifndef FSI_FSI_H +#define FSI_FSI_H + +#include "hw/qdev-core.h" + +#define TYPE_FSI_BUS "fsi.bus" +OBJECT_DECLARE_SIMPLE_TYPE(FSIBus, FSI_BUS) + +typedef struct FSIBus { + BusState bus; +} FSIBus; + +#endif /* FSI_FSI_H */ diff --git a/hw/fsi/fsi.c b/hw/fsi/fsi.c new file mode 100644 index 0000000000..60cb03f7a2 --- /dev/null +++ b/hw/fsi/fsi.c @@ -0,0 +1,22 @@ +/* + * SPDX-License-Identifier: GPL-2.0-or-later + * Copyright (C) 2024 IBM Corp. + * + * IBM Flexible Service Interface + */ +#include "qemu/osdep.h" + +#include "hw/fsi/fsi.h" + +static const TypeInfo fsi_bus_info =3D { + .name =3D TYPE_FSI_BUS, + .parent =3D TYPE_BUS, + .instance_size =3D sizeof(FSIBus), +}; + +static void fsi_bus_register_types(void) +{ + type_register_static(&fsi_bus_info); +} + +type_init(fsi_bus_register_types); diff --git a/hw/fsi/meson.build b/hw/fsi/meson.build index 93ba19dd04..574f5f9289 100644 --- a/hw/fsi/meson.build +++ b/hw/fsi/meson.build @@ -1 +1 @@ -system_ss.add(when: 'CONFIG_FSI', if_true: files('lbus.c')) +system_ss.add(when: 'CONFIG_FSI', if_true: files('lbus.c','fsi.c')) --=20 2.39.2 From nobody Tue Nov 26 14:47:27 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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b=h8wGbCT5QOj0zrDC57f6q8M38gzwWgi846ruJw06H/ERU17fmx+aJ1zk5WbTf1pBis41 4QDl6azbPqhTathND+YYNEqi7Dhsgt20QCVUPFgWTUovN7e9Z8qYGOh+020PPJoovLAe PJCBYuMO4Szi1iNDWq822uVKiyB3ZOikHcLGKE+s+7MO1tTHxaFIYiH5UZY/VYXxSLG9 H0aDd/T1mTiV8Cv1lUyH7GOr+1QtXNfkpMLE10Y0uye03WCwHeOM82P3LWaWw7GdaCxs XC9lKAkfVj2+O4vguPyandI/uW3ieskCaj4DvcNsLBYJk/iWKM/970saWrjLLW+vz3xR 4w== From: Ninad Palsule To: qemu-devel@nongnu.org, clg@kaod.org, peter.maydell@linaro.org, andrew@codeconstruct.com.au, joel@jms.id.au, pbonzini@redhat.com, marcandre.lureau@redhat.com, berrange@redhat.com, thuth@redhat.com, philmd@linaro.org, lvivier@redhat.com Cc: Ninad Palsule , qemu-arm@nongnu.org, Andrew Jeffery Subject: [PATCH v11 04/11] hw/fsi: Introduce IBM's fsi-slave model Date: Thu, 25 Jan 2024 21:40:19 -0600 Message-Id: <20240126034026.31068-5-ninad@linux.ibm.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240126034026.31068-1-ninad@linux.ibm.com> References: <20240126034026.31068-1-ninad@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: pDNLoGFVTBXr22HLibtw4_QGuzewalLm X-Proofpoint-GUID: 4rh-MKs5CA4-ZEdOJ5D7gsf3BX7Y-x1M X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-01-25_14,2024-01-25_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 priorityscore=1501 malwarescore=0 impostorscore=0 lowpriorityscore=0 adultscore=0 spamscore=0 mlxscore=0 mlxlogscore=999 suspectscore=0 clxscore=1015 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2401260024 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=148.163.158.5; envelope-from=ninad@linux.ibm.com; helo=mx0b-001b2d01.pphosted.com X-Spam_score_int: -19 X-Spam_score: -2.0 X-Spam_bar: -- X-Spam_report: (-2.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @ibm.com) X-ZM-MESSAGEID: 1706240550049100001 This is a part of patchset where IBM's Flexible Service Interface is introduced. The FSI slave: The slave is the terminal point of the FSI bus for FSI symbols addressed to it. Slaves can be cascaded off of one another. The slave's configuration registers appear in address space of the CFAM to which it is attached. Signed-off-by: Andrew Jeffery Signed-off-by: C=C3=A9dric Le Goater Signed-off-by: Ninad Palsule Reviewed-by: C=C3=A9dric Le Goater --- include/hw/fsi/fsi.h | 19 ++++++++++ hw/fsi/fsi.c | 87 +++++++++++++++++++++++++++++++++++++++++++- hw/fsi/trace-events | 2 + 3 files changed, 106 insertions(+), 2 deletions(-) diff --git a/include/hw/fsi/fsi.h b/include/hw/fsi/fsi.h index 50e8f5c888..6e11747dd5 100644 --- a/include/hw/fsi/fsi.h +++ b/include/hw/fsi/fsi.h @@ -7,7 +7,14 @@ #ifndef FSI_FSI_H #define FSI_FSI_H =20 +#include "exec/memory.h" #include "hw/qdev-core.h" +#include "hw/fsi/lbus.h" +#include "qemu/bitops.h" + +/* Bitwise operations at the word level. */ +#define BE_BIT(x) BIT(31 - (x)) +#define BE_GENMASK(hb, lb) MAKE_64BIT_MASK((lb), ((hb) - (lb) + 1)) =20 #define TYPE_FSI_BUS "fsi.bus" OBJECT_DECLARE_SIMPLE_TYPE(FSIBus, FSI_BUS) @@ -16,4 +23,16 @@ typedef struct FSIBus { BusState bus; } FSIBus; =20 +#define TYPE_FSI_SLAVE "fsi.slave" +OBJECT_DECLARE_SIMPLE_TYPE(FSISlaveState, FSI_SLAVE) + +#define FSI_SLAVE_CONTROL_NR_REGS ((0x40 >> 2) + 1) + +typedef struct FSISlaveState { + DeviceState parent; + + MemoryRegion iomem; + uint32_t regs[FSI_SLAVE_CONTROL_NR_REGS]; +} FSISlaveState; + #endif /* FSI_FSI_H */ diff --git a/hw/fsi/fsi.c b/hw/fsi/fsi.c index 60cb03f7a2..528323d9cf 100644 --- a/hw/fsi/fsi.c +++ b/hw/fsi/fsi.c @@ -5,18 +5,101 @@ * IBM Flexible Service Interface */ #include "qemu/osdep.h" +#include "qapi/error.h" +#include "qemu/log.h" +#include "trace.h" =20 #include "hw/fsi/fsi.h" =20 +#define TO_REG(x) ((x) >> 2) + static const TypeInfo fsi_bus_info =3D { .name =3D TYPE_FSI_BUS, .parent =3D TYPE_BUS, .instance_size =3D sizeof(FSIBus), }; =20 -static void fsi_bus_register_types(void) +static uint64_t fsi_slave_read(void *opaque, hwaddr addr, unsigned size) +{ + FSISlaveState *s =3D FSI_SLAVE(opaque); + int reg =3D TO_REG(addr); + + trace_fsi_slave_read(addr, size); + + if (reg >=3D FSI_SLAVE_CONTROL_NR_REGS) { + qemu_log_mask(LOG_GUEST_ERROR, + "%s: Out of bounds read: 0x%"HWADDR_PRIx" for %u\n", + __func__, addr, size); + return 0; + } + + return s->regs[reg]; +} + +static void fsi_slave_write(void *opaque, hwaddr addr, uint64_t data, + unsigned size) +{ + FSISlaveState *s =3D FSI_SLAVE(opaque); + int reg =3D TO_REG(addr); + + trace_fsi_slave_write(addr, size, data); + + if (reg >=3D FSI_SLAVE_CONTROL_NR_REGS) { + qemu_log_mask(LOG_GUEST_ERROR, + "%s: Out of bounds write: 0x%"HWADDR_PRIx" for %u\n", + __func__, addr, size); + return; + } + + s->regs[reg] =3D data; +} + +static const struct MemoryRegionOps fsi_slave_ops =3D { + .read =3D fsi_slave_read, + .write =3D fsi_slave_write, + .endianness =3D DEVICE_BIG_ENDIAN, +}; + +static void fsi_slave_reset(DeviceState *dev) +{ + FSISlaveState *s =3D FSI_SLAVE(dev); + int i; + + /* Initialize registers */ + for (i =3D 0; i < FSI_SLAVE_CONTROL_NR_REGS; i++) { + s->regs[i] =3D 0; + } +} + +static void fsi_slave_init(Object *o) +{ + FSISlaveState *s =3D FSI_SLAVE(o); + + memory_region_init_io(&s->iomem, OBJECT(s), &fsi_slave_ops, + s, TYPE_FSI_SLAVE, 0x400); +} + +static void fsi_slave_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc =3D DEVICE_CLASS(klass); + + dc->bus_type =3D TYPE_FSI_BUS; + dc->desc =3D "FSI Slave"; + dc->reset =3D fsi_slave_reset; +} + +static const TypeInfo fsi_slave_info =3D { + .name =3D TYPE_FSI_SLAVE, + .parent =3D TYPE_DEVICE, + .instance_init =3D fsi_slave_init, + .instance_size =3D sizeof(FSISlaveState), + .class_init =3D fsi_slave_class_init, +}; + +static void fsi_register_types(void) { type_register_static(&fsi_bus_info); + type_register_static(&fsi_slave_info); } =20 -type_init(fsi_bus_register_types); +type_init(fsi_register_types); diff --git a/hw/fsi/trace-events b/hw/fsi/trace-events index c5753e2791..8f29adb7df 100644 --- a/hw/fsi/trace-events +++ b/hw/fsi/trace-events @@ -1,2 +1,4 @@ fsi_scratchpad_read(uint64_t addr, uint32_t size) "@0x%" PRIx64 " size=3D%= d" fsi_scratchpad_write(uint64_t addr, uint32_t size, uint64_t data) "@0x%" P= RIx64 " size=3D%d value=3D0x%"PRIx64 +fsi_slave_read(uint64_t addr, uint32_t size) "@0x%" PRIx64 " size=3D%d" +fsi_slave_write(uint64_t addr, uint32_t size, uint64_t data) "@0x%" PRIx64= " size=3D%d value=3D0x%"PRIx64 --=20 2.39.2 From nobody Tue Nov 26 14:47:27 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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Fri, 26 Jan 2024 03:40:31 +0000 Received: from smtpav06.dal12v.mail.ibm.com (smtpav06.dal12v.mail.ibm.com [10.241.53.105]) by smtprelay02.wdc07v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 40Q3eUq98585756 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 26 Jan 2024 03:40:31 GMT Received: from smtpav06.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id CD7525805D; Fri, 26 Jan 2024 03:40:30 +0000 (GMT) Received: from smtpav06.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 8465058059; Fri, 26 Jan 2024 03:40:30 +0000 (GMT) Received: from gfwa153.aus.stglabs.ibm.com (unknown [9.3.84.127]) by smtpav06.dal12v.mail.ibm.com (Postfix) with ESMTP; Fri, 26 Jan 2024 03:40:30 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type : content-transfer-encoding; s=pp1; bh=PBF0o+fSK8BpLD09G20HopPY7egydpZsN7pz39XRURo=; b=GWSxRRdkoMz3fI7WTutSvRG+ayaB9gVKVM1G3DaDEexFtkqcil8RYHHnAOVE0cbr87zs PUia2eMqgfnOok1Nogd+zkifWTfN80+VNeV7T4U4Zlu5z7rl3Yx+GmHkYYRNXKh0hEaS benfPbiF5JpXTUVPBl2hg9rgSMqWcIHQy4szEHfGvTV0aBaW8AKI/CB/fofUyD5OUe+r nCuvvERo4PUHzUD11mUu3gC0UBGnx5vGMuiZ+cddljH8UCnhO1ETTff7S/mjfQ0pzbSB g3XZQJmg/jh41uRaG0s+fU+0noA2+4kqEf/oLCpO68Bway4iP4ceWhhpJ9PXsgW8IwBx JQ== From: Ninad Palsule To: qemu-devel@nongnu.org, clg@kaod.org, peter.maydell@linaro.org, andrew@codeconstruct.com.au, joel@jms.id.au, pbonzini@redhat.com, marcandre.lureau@redhat.com, berrange@redhat.com, thuth@redhat.com, philmd@linaro.org, lvivier@redhat.com Cc: Ninad Palsule , qemu-arm@nongnu.org, Andrew Jeffery Subject: [PATCH v11 05/11] hw/fsi: Introduce IBM's cfam Date: Thu, 25 Jan 2024 21:40:20 -0600 Message-Id: <20240126034026.31068-6-ninad@linux.ibm.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240126034026.31068-1-ninad@linux.ibm.com> References: <20240126034026.31068-1-ninad@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: 3xkOYFGyFc_HNIO8kTtTyC4tibOPteUA X-Proofpoint-GUID: 3y6BwvYsVbMJuGbGbMbJnky0aHq50k-j X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-01-25_14,2024-01-25_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 phishscore=0 impostorscore=0 lowpriorityscore=0 priorityscore=1501 malwarescore=0 spamscore=0 bulkscore=0 suspectscore=0 mlxlogscore=813 adultscore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2401260024 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=148.163.156.1; envelope-from=ninad@linux.ibm.com; helo=mx0a-001b2d01.pphosted.com X-Spam_score_int: -19 X-Spam_score: -2.0 X-Spam_bar: -- X-Spam_report: (-2.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @ibm.com) X-ZM-MESSAGEID: 1706240502299100002 This is a part of patchset where IBM's Flexible Service Interface is introduced. The Common FRU Access Macro (CFAM), an address space containing various "engines" that drive accesses on busses internal and external to the POWER chip. Examples include the SBEFIFO and I2C masters. The engines hang off of an internal Local Bus (LBUS) which is described by the CFAM configuration block. Signed-off-by: Andrew Jeffery [ clg: - moved object FSIScratchPad under FSICFAMState - moved FSIScratchPad code under cfam.c - introduced fsi_cfam_instance_init() - reworked fsi_cfam_realize() ] Signed-off-by: C=C3=A9dric Le Goater Signed-off-by: Ninad Palsule Reviewed-by: C=C3=A9dric Le Goater --- v9: - Added more registers to scratchpad - Removed unnecessary address space - Removed unnecessary header file - Defined macros for config values. - Cleaned up cfam config read. --- include/hw/fsi/cfam.h | 34 +++++++++ hw/fsi/cfam.c | 168 ++++++++++++++++++++++++++++++++++++++++++ hw/fsi/meson.build | 2 +- hw/fsi/trace-events | 5 ++ 4 files changed, 208 insertions(+), 1 deletion(-) create mode 100644 include/hw/fsi/cfam.h create mode 100644 hw/fsi/cfam.c diff --git a/include/hw/fsi/cfam.h b/include/hw/fsi/cfam.h new file mode 100644 index 0000000000..7abc3b287b --- /dev/null +++ b/include/hw/fsi/cfam.h @@ -0,0 +1,34 @@ +/* + * SPDX-License-Identifier: GPL-2.0-or-later + * Copyright (C) 2024 IBM Corp. + * + * IBM Common FRU Access Macro + */ +#ifndef FSI_CFAM_H +#define FSI_CFAM_H + +#include "exec/memory.h" + +#include "hw/fsi/fsi.h" +#include "hw/fsi/lbus.h" + +#define TYPE_FSI_CFAM "cfam" +#define FSI_CFAM(obj) OBJECT_CHECK(FSICFAMState, (obj), TYPE_FSI_CFAM) + +/* P9-ism */ +#define CFAM_CONFIG_NR_REGS 0x28 + +typedef struct FSICFAMState { + /* < private > */ + FSISlaveState parent; + + /* CFAM config address space */ + MemoryRegion config_iomem; + + MemoryRegion mr; + + FSILBus lbus; + FSIScratchPad scratchpad; +} FSICFAMState; + +#endif /* FSI_CFAM_H */ diff --git a/hw/fsi/cfam.c b/hw/fsi/cfam.c new file mode 100644 index 0000000000..c118221bc3 --- /dev/null +++ b/hw/fsi/cfam.c @@ -0,0 +1,168 @@ +/* + * SPDX-License-Identifier: GPL-2.0-or-later + * Copyright (C) 2024 IBM Corp. + * + * IBM Common FRU Access Macro + */ + +#include "qemu/osdep.h" +#include "qemu/units.h" + +#include "qapi/error.h" +#include "trace.h" + +#include "hw/fsi/cfam.h" +#include "hw/fsi/fsi.h" + +#include "hw/qdev-properties.h" + +#define ENGINE_CONFIG_NEXT BE_BIT(0) +#define ENGINE_CONFIG_TYPE_PEEK (0x02 << 4) +#define ENGINE_CONFIG_TYPE_FSI (0x03 << 4) +#define ENGINE_CONFIG_TYPE_SCRATCHPAD (0x06 << 4) + +/* Valid, slots, version, type, crc */ +#define CFAM_CONFIG_REG(__VER, __TYPE, __CRC) \ + (ENGINE_CONFIG_NEXT | \ + 0x00010000 | \ + (__VER) | \ + (__TYPE) | \ + (__CRC)) + +#define TO_REG(x) ((x) >> 2) + +#define CFAM_CONFIG_CHIP_ID TO_REG(0x00) +#define CFAM_CONFIG_PEEK_STATUS TO_REG(0x04) +#define CFAM_CONFIG_CHIP_ID_P9 0xc0022d15 +#define CFAM_CONFIG_CHIP_ID_BREAK 0xc0de0000 + +static uint64_t fsi_cfam_config_read(void *opaque, hwaddr addr, unsigned s= ize) +{ + trace_fsi_cfam_config_read(addr, size); + + switch (addr) { + case 0x00: + return CFAM_CONFIG_CHIP_ID_P9; + case 0x04: + return CFAM_CONFIG_REG(0x1000, ENGINE_CONFIG_TYPE_PEEK, 0xc); + case 0x08: + return CFAM_CONFIG_REG(0x5000, ENGINE_CONFIG_TYPE_FSI, 0xa); + case 0xc: + return CFAM_CONFIG_REG(0x1000, ENGINE_CONFIG_TYPE_SCRATCHPAD, 0x7); + default: + /* + * The config table contains different engines from 0xc onwards. + * The scratch pad is already added at address 0xc. We need to add + * future engines from address 0x10 onwards. Returning 0 as engine + * is not implemented. + */ + return 0; + } +} + +static void fsi_cfam_config_write(void *opaque, hwaddr addr, uint64_t data, + unsigned size) +{ + FSICFAMState *cfam =3D FSI_CFAM(opaque); + + trace_fsi_cfam_config_write(addr, size, data); + + switch (TO_REG(addr)) { + case CFAM_CONFIG_CHIP_ID: + case CFAM_CONFIG_PEEK_STATUS: + if (data =3D=3D CFAM_CONFIG_CHIP_ID_BREAK) { + bus_cold_reset(BUS(&cfam->lbus)); + } + break; + default: + trace_fsi_cfam_config_write_noaddr(addr, size, data); + } +} + +static const struct MemoryRegionOps cfam_config_ops =3D { + .read =3D fsi_cfam_config_read, + .write =3D fsi_cfam_config_write, + .valid.max_access_size =3D 4, + .valid.min_access_size =3D 4, + .impl.max_access_size =3D 4, + .impl.min_access_size =3D 4, + .endianness =3D DEVICE_BIG_ENDIAN, +}; + +static uint64_t fsi_cfam_unimplemented_read(void *opaque, hwaddr addr, + unsigned size) +{ + trace_fsi_cfam_unimplemented_read(addr, size); + + return 0; +} + +static void fsi_cfam_unimplemented_write(void *opaque, hwaddr addr, + uint64_t data, unsigned size) +{ + trace_fsi_cfam_unimplemented_write(addr, size, data); +} + +static const struct MemoryRegionOps fsi_cfam_unimplemented_ops =3D { + .read =3D fsi_cfam_unimplemented_read, + .write =3D fsi_cfam_unimplemented_write, + .endianness =3D DEVICE_BIG_ENDIAN, +}; + +static void fsi_cfam_instance_init(Object *obj) +{ + FSICFAMState *s =3D FSI_CFAM(obj); + + object_initialize_child(obj, "scratchpad", &s->scratchpad, + TYPE_FSI_SCRATCHPAD); +} + +static void fsi_cfam_realize(DeviceState *dev, Error **errp) +{ + FSICFAMState *cfam =3D FSI_CFAM(dev); + FSISlaveState *slave =3D FSI_SLAVE(dev); + + /* Each slave has a 2MiB address space */ + memory_region_init_io(&cfam->mr, OBJECT(cfam), &fsi_cfam_unimplemented= _ops, + cfam, TYPE_FSI_CFAM, 2 * MiB); + + qbus_init(&cfam->lbus, sizeof(cfam->lbus), TYPE_FSI_LBUS, DEVICE(cfam), + NULL); + + memory_region_init_io(&cfam->config_iomem, OBJECT(cfam), &cfam_config_= ops, + cfam, TYPE_FSI_CFAM ".config", 0x400); + + memory_region_add_subregion(&cfam->mr, 0, &cfam->config_iomem); + memory_region_add_subregion(&cfam->mr, 0x800, &slave->iomem); + memory_region_add_subregion(&cfam->mr, 0xc00, &cfam->lbus.mr); + + /* Add scratchpad engine */ + if (!qdev_realize(DEVICE(&cfam->scratchpad), BUS(&cfam->lbus), errp)) { + return; + } + + FSILBusDevice *fsi_dev =3D FSI_LBUS_DEVICE(&cfam->scratchpad); + memory_region_add_subregion(&cfam->lbus.mr, 0, &fsi_dev->iomem); +} + +static void fsi_cfam_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc =3D DEVICE_CLASS(klass); + dc->bus_type =3D TYPE_FSI_BUS; + dc->realize =3D fsi_cfam_realize; +} + +static const TypeInfo fsi_cfam_info =3D { + .name =3D TYPE_FSI_CFAM, + .parent =3D TYPE_FSI_SLAVE, + .instance_init =3D fsi_cfam_instance_init, + .instance_size =3D sizeof(FSICFAMState), + .class_init =3D fsi_cfam_class_init, +}; + +static void fsi_cfam_register_types(void) +{ + type_register_static(&fsi_cfam_info); +} + +type_init(fsi_cfam_register_types); diff --git a/hw/fsi/meson.build b/hw/fsi/meson.build index 574f5f9289..96403d4efc 100644 --- a/hw/fsi/meson.build +++ b/hw/fsi/meson.build @@ -1 +1 @@ -system_ss.add(when: 'CONFIG_FSI', if_true: files('lbus.c','fsi.c')) +system_ss.add(when: 'CONFIG_FSI', if_true: files('lbus.c','fsi.c','cfam.c'= )) diff --git a/hw/fsi/trace-events b/hw/fsi/trace-events index 8f29adb7df..b542956fb3 100644 --- a/hw/fsi/trace-events +++ b/hw/fsi/trace-events @@ -2,3 +2,8 @@ fsi_scratchpad_read(uint64_t addr, uint32_t size) "@0x%" PR= Ix64 " size=3D%d" fsi_scratchpad_write(uint64_t addr, uint32_t size, uint64_t data) "@0x%" P= RIx64 " size=3D%d value=3D0x%"PRIx64 fsi_slave_read(uint64_t addr, uint32_t size) "@0x%" PRIx64 " size=3D%d" fsi_slave_write(uint64_t addr, uint32_t size, uint64_t data) "@0x%" PRIx64= " size=3D%d value=3D0x%"PRIx64 +fsi_cfam_config_read(uint64_t addr, uint32_t size) "@0x%" PRIx64 " size=3D= %d" +fsi_cfam_config_write(uint64_t addr, uint32_t size, uint64_t data) "@0x%" = PRIx64 " size=3D%d value=3D0x%"PRIx64 +fsi_cfam_unimplemented_read(uint64_t addr, uint32_t size) "@0x%" PRIx64 " = size=3D%d" +fsi_cfam_unimplemented_write(uint64_t addr, uint32_t size, uint64_t data) = "@0x%" PRIx64 " size=3D%d value=3D0x%"PRIx64 +fsi_cfam_config_write_noaddr(uint64_t addr, uint32_t size, uint64_t data) = "@0x%" PRIx64 " size=3D%d value=3D0x%"PRIx64 --=20 2.39.2 From nobody Tue Nov 26 14:47:27 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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b=Ifngn3bfkY33cPV2qQOTXZJmfXY1yPDZ4DsI7Y4QUSPEenuLiv4vr2KpxmtXbmZPjflq 6c9mGWlmLXoqnGs4BdV6J/r5yP3T/rC5wIsbooAGRO8uUIGL7lXra738KuDmd2gzDwD2 YQyelC7Z5xfX9UdMcvZ9vuxhAVvtBUg3fapIkaq+7kkNa8XI0H5eNvj0NovNgr76UN6r JaObfx0HHEdGAe/nVDKzB0WehGGfzG5Q0UnCy/HRXMJ2MsObpXpIo/Oo9ZzDP4+LM1Qz D2wuEPWl0O/AXV0TWYqui4mXgPFOwclcHaDVfyg1j1ETF+RKJWv0Tgz7ttRRgFQqLmoM PQ== From: Ninad Palsule To: qemu-devel@nongnu.org, clg@kaod.org, peter.maydell@linaro.org, andrew@codeconstruct.com.au, joel@jms.id.au, pbonzini@redhat.com, marcandre.lureau@redhat.com, berrange@redhat.com, thuth@redhat.com, philmd@linaro.org, lvivier@redhat.com Cc: Ninad Palsule , qemu-arm@nongnu.org, Andrew Jeffery Subject: [PATCH v11 06/11] hw/fsi: Introduce IBM's FSI master Date: Thu, 25 Jan 2024 21:40:21 -0600 Message-Id: <20240126034026.31068-7-ninad@linux.ibm.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240126034026.31068-1-ninad@linux.ibm.com> References: <20240126034026.31068-1-ninad@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-GUID: 8EMX72eNrdinin57yvSsaNeiRKsGBTMR X-Proofpoint-ORIG-GUID: T87l9kKTmF-4XqNuwlrbfVENJdxjBdOU X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-01-25_14,2024-01-25_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 bulkscore=0 adultscore=0 mlxscore=0 mlxlogscore=794 spamscore=0 phishscore=0 priorityscore=1501 clxscore=1015 impostorscore=0 malwarescore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2401260024 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=148.163.156.1; envelope-from=ninad@linux.ibm.com; helo=mx0a-001b2d01.pphosted.com X-Spam_score_int: -19 X-Spam_score: -2.0 X-Spam_bar: -- X-Spam_report: (-2.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @ibm.com) X-ZM-MESSAGEID: 1706240526142100001 This is a part of patchset where IBM's Flexible Service Interface is introduced. This commit models the FSI master. CFAM is hanging out of FSI master which = is a bus controller. The FSI master: A controller in the platform service processor (e.g. BMC) driving CFAM engine accesses into the POWER chip. At the hardware level FSI is a bit-based protocol supporting synchronous and DMA-driven accesses of engines in a CFAM. Signed-off-by: Andrew Jeffery Signed-off-by: C=C3=A9dric Le Goater [ clg: - move FSICFAMState object under FSIMasterState - introduced fsi_master_init() - reworked fsi_master_realize() - dropped FSIBus definition ] Signed-off-by: Ninad Palsule Reviewed-by: C=C3=A9dric Le Goater --- v9: - Initialized registers. - Fixed the address check. v11: - Replaced for loop with memset. - Removed Joel's review tag as per Cedric. --- include/hw/fsi/fsi-master.h | 32 +++++++ hw/fsi/fsi-master.c | 170 ++++++++++++++++++++++++++++++++++++ hw/fsi/meson.build | 2 +- hw/fsi/trace-events | 2 + 4 files changed, 205 insertions(+), 1 deletion(-) create mode 100644 include/hw/fsi/fsi-master.h create mode 100644 hw/fsi/fsi-master.c diff --git a/include/hw/fsi/fsi-master.h b/include/hw/fsi/fsi-master.h new file mode 100644 index 0000000000..68e5f56db2 --- /dev/null +++ b/include/hw/fsi/fsi-master.h @@ -0,0 +1,32 @@ +/* + * SPDX-License-Identifier: GPL-2.0-or-later + * Copyright (C) 2024 IBM Corp. + * + * IBM Flexible Service Interface Master + */ +#ifndef FSI_FSI_MASTER_H +#define FSI_FSI_MASTER_H + +#include "exec/memory.h" +#include "hw/qdev-core.h" +#include "hw/fsi/fsi.h" +#include "hw/fsi/cfam.h" + +#define TYPE_FSI_MASTER "fsi.master" +OBJECT_DECLARE_SIMPLE_TYPE(FSIMasterState, FSI_MASTER) + +#define FSI_MASTER_NR_REGS ((0x2e0 >> 2) + 1) + +typedef struct FSIMasterState { + DeviceState parent; + MemoryRegion iomem; + MemoryRegion opb2fsi; + + FSIBus bus; + + uint32_t regs[FSI_MASTER_NR_REGS]; + FSICFAMState cfam; +} FSIMasterState; + + +#endif /* FSI_FSI_H */ diff --git a/hw/fsi/fsi-master.c b/hw/fsi/fsi-master.c new file mode 100644 index 0000000000..49ad4b988f --- /dev/null +++ b/hw/fsi/fsi-master.c @@ -0,0 +1,170 @@ +/* + * SPDX-License-Identifier: GPL-2.0-or-later + * Copyright (C) 2024 IBM Corp. + * + * IBM Flexible Service Interface master + */ + +#include "qemu/osdep.h" +#include "qapi/error.h" +#include "qemu/log.h" +#include "trace.h" + +#include "hw/fsi/fsi-master.h" + +#define TYPE_OP_BUS "opb" + +#define TO_REG(x) ((x) >> 2) + +#define FSI_MENP0 TO_REG(0x010) +#define FSI_MENP32 TO_REG(0x014) +#define FSI_MSENP0 TO_REG(0x018) +#define FSI_MLEVP0 TO_REG(0x018) +#define FSI_MSENP32 TO_REG(0x01c) +#define FSI_MLEVP32 TO_REG(0x01c) +#define FSI_MCENP0 TO_REG(0x020) +#define FSI_MREFP0 TO_REG(0x020) +#define FSI_MCENP32 TO_REG(0x024) +#define FSI_MREFP32 TO_REG(0x024) + +#define FSI_MVER TO_REG(0x074) +#define FSI_MRESP0 TO_REG(0x0d0) + +#define FSI_MRESB0 TO_REG(0x1d0) +#define FSI_MRESB0_RESET_GENERAL BE_BIT(0) +#define FSI_MRESB0_RESET_ERROR BE_BIT(1) + +static uint64_t fsi_master_read(void *opaque, hwaddr addr, unsigned size) +{ + FSIMasterState *s =3D FSI_MASTER(opaque); + int reg =3D TO_REG(addr); + + trace_fsi_master_read(addr, size); + + if (reg >=3D FSI_MASTER_NR_REGS) { + qemu_log_mask(LOG_GUEST_ERROR, + "%s: Out of bounds read: 0x%"HWADDR_PRIx" for %u\n", + __func__, addr, size); + return 0; + } + + return s->regs[reg]; +} + +static void fsi_master_write(void *opaque, hwaddr addr, uint64_t data, + unsigned size) +{ + FSIMasterState *s =3D FSI_MASTER(opaque); + int reg =3D TO_REG(addr); + + trace_fsi_master_write(addr, size, data); + + if (reg >=3D FSI_MASTER_NR_REGS) { + qemu_log_mask(LOG_GUEST_ERROR, + "%s: Out of bounds write: %"HWADDR_PRIx" for %u\n", + __func__, addr, size); + return; + } + + switch (reg) { + case FSI_MENP0: + s->regs[FSI_MENP0] =3D data; + break; + case FSI_MENP32: + s->regs[FSI_MENP32] =3D data; + break; + case FSI_MSENP0: + s->regs[FSI_MENP0] |=3D data; + break; + case FSI_MSENP32: + s->regs[FSI_MENP32] |=3D data; + break; + case FSI_MCENP0: + s->regs[FSI_MENP0] &=3D ~data; + break; + case FSI_MCENP32: + s->regs[FSI_MENP32] &=3D ~data; + break; + case FSI_MRESP0: + /* Perform necessary resets leave register 0 to indicate no errors= */ + break; + case FSI_MRESB0: + if (data & FSI_MRESB0_RESET_GENERAL) { + device_cold_reset(DEVICE(opaque)); + } + if (data & FSI_MRESB0_RESET_ERROR) { + /* FIXME: this seems dubious */ + device_cold_reset(DEVICE(opaque)); + } + break; + default: + s->regs[reg] =3D data; + } +} + +static const struct MemoryRegionOps fsi_master_ops =3D { + .read =3D fsi_master_read, + .write =3D fsi_master_write, + .endianness =3D DEVICE_BIG_ENDIAN, +}; + +static void fsi_master_init(Object *o) +{ + FSIMasterState *s =3D FSI_MASTER(o); + + object_initialize_child(o, "cfam", &s->cfam, TYPE_FSI_CFAM); + + qbus_init(&s->bus, sizeof(s->bus), TYPE_FSI_BUS, DEVICE(s), NULL); + + memory_region_init_io(&s->iomem, OBJECT(s), &fsi_master_ops, s, + TYPE_FSI_MASTER, 0x10000000); + memory_region_init(&s->opb2fsi, OBJECT(s), "fsi.opb2fsi", 0x10000000); +} + +static void fsi_master_realize(DeviceState *dev, Error **errp) +{ + FSIMasterState *s =3D FSI_MASTER(dev); + + if (!qdev_realize(DEVICE(&s->cfam), BUS(&s->bus), errp)) { + return; + } + + /* address ? */ + memory_region_add_subregion(&s->opb2fsi, 0, &s->cfam.mr); +} + +static void fsi_master_reset(DeviceState *dev) +{ + FSIMasterState *s =3D FSI_MASTER(dev); + + /* Initialize registers */ + memset(s->regs, 0, sizeof(s->regs)); + + /* ASPEED default */ + s->regs[FSI_MVER] =3D 0xe0050101; +} + +static void fsi_master_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc =3D DEVICE_CLASS(klass); + + dc->bus_type =3D TYPE_OP_BUS; + dc->desc =3D "FSI Master"; + dc->realize =3D fsi_master_realize; + dc->reset =3D fsi_master_reset; +} + +static const TypeInfo fsi_master_info =3D { + .name =3D TYPE_FSI_MASTER, + .parent =3D TYPE_DEVICE, + .instance_init =3D fsi_master_init, + .instance_size =3D sizeof(FSIMasterState), + .class_init =3D fsi_master_class_init, +}; + +static void fsi_register_types(void) +{ + type_register_static(&fsi_master_info); +} + +type_init(fsi_register_types); diff --git a/hw/fsi/meson.build b/hw/fsi/meson.build index 96403d4efc..7803b3afd1 100644 --- a/hw/fsi/meson.build +++ b/hw/fsi/meson.build @@ -1 +1 @@ -system_ss.add(when: 'CONFIG_FSI', if_true: files('lbus.c','fsi.c','cfam.c'= )) +system_ss.add(when: 'CONFIG_FSI', if_true: files('lbus.c','fsi.c','cfam.c'= ,'fsi-master.c')) diff --git a/hw/fsi/trace-events b/hw/fsi/trace-events index b542956fb3..bf417b6dc3 100644 --- a/hw/fsi/trace-events +++ b/hw/fsi/trace-events @@ -7,3 +7,5 @@ fsi_cfam_config_write(uint64_t addr, uint32_t size, uint64_= t data) "@0x%" PRIx64 fsi_cfam_unimplemented_read(uint64_t addr, uint32_t size) "@0x%" PRIx64 " = size=3D%d" fsi_cfam_unimplemented_write(uint64_t addr, uint32_t size, uint64_t data) = "@0x%" PRIx64 " size=3D%d value=3D0x%"PRIx64 fsi_cfam_config_write_noaddr(uint64_t addr, uint32_t size, uint64_t data) = "@0x%" PRIx64 " size=3D%d value=3D0x%"PRIx64 +fsi_master_read(uint64_t addr, uint32_t size) "@0x%" PRIx64 " size=3D%d" +fsi_master_write(uint64_t addr, uint32_t size, uint64_t data) "@0x%" PRIx6= 4 " size=3D%d value=3D0x%"PRIx64 --=20 2.39.2 From nobody Tue Nov 26 14:47:27 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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Fri, 26 Jan 2024 03:40:32 +0000 Received: from smtpav06.dal12v.mail.ibm.com (smtpav06.dal12v.mail.ibm.com [10.241.53.105]) by smtprelay03.wdc07v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 40Q3eVcq2032288 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 26 Jan 2024 03:40:32 GMT Received: from smtpav06.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 92DCC5805E; Fri, 26 Jan 2024 03:40:31 +0000 (GMT) Received: from smtpav06.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 4085958059; Fri, 26 Jan 2024 03:40:31 +0000 (GMT) Received: from gfwa153.aus.stglabs.ibm.com (unknown [9.3.84.127]) by smtpav06.dal12v.mail.ibm.com (Postfix) with ESMTP; Fri, 26 Jan 2024 03:40:31 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type : content-transfer-encoding; s=pp1; bh=AZpCNba3Hats2Y/0epmKyxqcrrYklUjj2TFSEQuO6lY=; b=R2kE/CxoOczIOxRadmLaB9IM2YReSnXmYwZyHIEvea1x3o2irYmc5VOFnRU3MGbG73SC kcANE0lN7zt1TBA0WbyFicMHe0wR0trQ/9L8ZR9Z81lSTBNG7d56QFlZhQm5TCEp2gmp dz+w9yM7XL75UryUwOgENtL6bvYcn34Exf5Mr1XRb12eeT3zsbv9VgyJY6W5y9lcsW4v cbHj2NiFPzC3qVuR1OnoZxSVq3njFSkGNjGVNvASN/bJHBxYjihPKJkZq7Aj79jI09bw p3ZIFAiA8TV+rdIzQOk7MBAIIoayLVoFJkCbLlZQQjUyu4l4XMGm3CgP2osnVLXV+uuv xg== From: Ninad Palsule To: qemu-devel@nongnu.org, clg@kaod.org, peter.maydell@linaro.org, andrew@codeconstruct.com.au, joel@jms.id.au, pbonzini@redhat.com, marcandre.lureau@redhat.com, berrange@redhat.com, thuth@redhat.com, philmd@linaro.org, lvivier@redhat.com Cc: Ninad Palsule , qemu-arm@nongnu.org, Andrew Jeffery Subject: [PATCH v11 07/11] hw/fsi: Aspeed APB2OPB & On-chip peripheral bus Date: Thu, 25 Jan 2024 21:40:22 -0600 Message-Id: <20240126034026.31068-8-ninad@linux.ibm.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240126034026.31068-1-ninad@linux.ibm.com> References: <20240126034026.31068-1-ninad@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-GUID: DX2sae33xxrX5DcVaYWP8OGb92cTuAvr X-Proofpoint-ORIG-GUID: gNtyLGIYQQgrnmHD7l6O5ZgdJG2Lqa8M X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-01-25_14,2024-01-25_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 suspectscore=0 priorityscore=1501 spamscore=0 phishscore=0 mlxlogscore=785 bulkscore=0 clxscore=1015 mlxscore=0 adultscore=0 lowpriorityscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2401260024 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=148.163.158.5; envelope-from=ninad@linux.ibm.com; helo=mx0b-001b2d01.pphosted.com X-Spam_score_int: -19 X-Spam_score: -2.0 X-Spam_bar: -- X-Spam_report: (-2.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @ibm.com) X-ZM-MESSAGEID: 1706240610203100003 This is a part of patchset where IBM's Flexible Service Interface is introduced. An APB-to-OPB bridge enabling access to the OPB from the ARM core in the AST2600. Hardware limitations prevent the OPB from being directly mapped into APB, so all accesses are indirect through the bridge. The On-Chip Peripheral Bus (OPB): A low-speed bus typically found in POWER processors. This now makes an appearance in the ASPEED SoC due to tight integration of the FSI master IP with the OPB, mainly the existence of an MMIO-mapping of the CFAM address straight onto a sub-region of the OPB address space. Signed-off-by: Andrew Jeffery [ clg: - moved FSIMasterState under AspeedAPB2OPBState - modified fsi_opb_fsi_master_address() and fsi_opb_opb2fsi_address() - instroduced fsi_aspeed_apb2opb_init() - reworked fsi_aspeed_apb2opb_realize() - removed FSIMasterState object and fsi_opb_realize() - simplified OPBus ] Signed-off-by: C=C3=A9dric Le Goater Signed-off-by: Ninad Palsule Reviewed-by: C=C3=A9dric Le Goater --- v9: - Removed unused parameters from function. - Used qdev_realize() instead of qdev_realize_and_undef - Given a name to the opb memory region. v10: - Combine Aspeed APB2OPB and on-chip pheripheral bus --- include/hw/fsi/aspeed_apb2opb.h | 46 +++++ hw/fsi/aspeed_apb2opb.c | 322 ++++++++++++++++++++++++++++++++ hw/arm/Kconfig | 1 + hw/fsi/Kconfig | 5 + hw/fsi/meson.build | 1 + hw/fsi/trace-events | 2 + 6 files changed, 377 insertions(+) create mode 100644 include/hw/fsi/aspeed_apb2opb.h create mode 100644 hw/fsi/aspeed_apb2opb.c diff --git a/include/hw/fsi/aspeed_apb2opb.h b/include/hw/fsi/aspeed_apb2op= b.h new file mode 100644 index 0000000000..f6a2387abf --- /dev/null +++ b/include/hw/fsi/aspeed_apb2opb.h @@ -0,0 +1,46 @@ +/* + * SPDX-License-Identifier: GPL-2.0-or-later + * Copyright (C) 2024 IBM Corp. + * + * ASPEED APB2OPB Bridge + * IBM On-Chip Peripheral Bus + */ +#ifndef FSI_ASPEED_APB2OPB_H +#define FSI_ASPEED_APB2OPB_H + +#include "exec/memory.h" +#include "hw/fsi/fsi-master.h" +#include "hw/sysbus.h" + +#define TYPE_FSI_OPB "fsi.opb" + +#define TYPE_OP_BUS "opb" +OBJECT_DECLARE_SIMPLE_TYPE(OPBus, OP_BUS) + +typedef struct OPBus { + BusState bus; + + MemoryRegion mr; + AddressSpace as; +} OPBus; + +#define TYPE_ASPEED_APB2OPB "aspeed.apb2opb" +OBJECT_DECLARE_SIMPLE_TYPE(AspeedAPB2OPBState, ASPEED_APB2OPB) + +#define ASPEED_APB2OPB_NR_REGS ((0xe8 >> 2) + 1) + +#define ASPEED_FSI_NUM 2 + +typedef struct AspeedAPB2OPBState { + SysBusDevice parent_obj; + + MemoryRegion iomem; + + uint32_t regs[ASPEED_APB2OPB_NR_REGS]; + qemu_irq irq; + + OPBus opb[ASPEED_FSI_NUM]; + FSIMasterState fsi[ASPEED_FSI_NUM]; +} AspeedAPB2OPBState; + +#endif /* FSI_ASPEED_APB2OPB_H */ diff --git a/hw/fsi/aspeed_apb2opb.c b/hw/fsi/aspeed_apb2opb.c new file mode 100644 index 0000000000..997ae30060 --- /dev/null +++ b/hw/fsi/aspeed_apb2opb.c @@ -0,0 +1,322 @@ +/* + * SPDX-License-Identifier: GPL-2.0-or-later + * Copyright (C) 2024 IBM Corp. + * + * ASPEED APB-OPB FSI interface + * IBM On-chip Peripheral Bus + */ + +#include "qemu/osdep.h" +#include "qemu/log.h" +#include "qom/object.h" +#include "qapi/error.h" +#include "trace.h" + +#include "hw/fsi/aspeed_apb2opb.h" +#include "hw/qdev-core.h" + +#define TO_REG(x) (x >> 2) + +#define APB2OPB_VERSION TO_REG(0x00) +#define APB2OPB_TRIGGER TO_REG(0x04) + +#define APB2OPB_CONTROL TO_REG(0x08) +#define APB2OPB_CONTROL_OFF BE_GENMASK(31, 13) + +#define APB2OPB_OPB2FSI TO_REG(0x0c) +#define APB2OPB_OPB2FSI_OFF BE_GENMASK(31, 22) + +#define APB2OPB_OPB0_SEL TO_REG(0x10) +#define APB2OPB_OPB1_SEL TO_REG(0x28) +#define APB2OPB_OPB_SEL_EN BIT(0) + +#define APB2OPB_OPB0_MODE TO_REG(0x14) +#define APB2OPB_OPB1_MODE TO_REG(0x2c) +#define APB2OPB_OPB_MODE_RD BIT(0) + +#define APB2OPB_OPB0_XFER TO_REG(0x18) +#define APB2OPB_OPB1_XFER TO_REG(0x30) +#define APB2OPB_OPB_XFER_FULL BIT(1) +#define APB2OPB_OPB_XFER_HALF BIT(0) + +#define APB2OPB_OPB0_ADDR TO_REG(0x1c) +#define APB2OPB_OPB0_WRITE_DATA TO_REG(0x20) + +#define APB2OPB_OPB1_ADDR TO_REG(0x34) +#define APB2OPB_OPB1_WRITE_DATA TO_REG(0x38) + +#define APB2OPB_IRQ_STS TO_REG(0x48) +#define APB2OPB_IRQ_STS_OPB1_TX_ACK BIT(17) +#define APB2OPB_IRQ_STS_OPB0_TX_ACK BIT(16) + +#define APB2OPB_OPB0_WRITE_WORD_ENDIAN TO_REG(0x4c) +#define APB2OPB_OPB0_WRITE_WORD_ENDIAN_BE 0x0011101b +#define APB2OPB_OPB0_WRITE_BYTE_ENDIAN TO_REG(0x50) +#define APB2OPB_OPB0_WRITE_BYTE_ENDIAN_BE 0x0c330f3f +#define APB2OPB_OPB1_WRITE_WORD_ENDIAN TO_REG(0x54) +#define APB2OPB_OPB1_WRITE_BYTE_ENDIAN TO_REG(0x58) +#define APB2OPB_OPB0_READ_BYTE_ENDIAN TO_REG(0x5c) +#define APB2OPB_OPB1_READ_BYTE_ENDIAN TO_REG(0x60) +#define APB2OPB_OPB0_READ_WORD_ENDIAN_BE 0x00030b1b + +#define APB2OPB_OPB0_READ_DATA TO_REG(0x84) +#define APB2OPB_OPB1_READ_DATA TO_REG(0x90) + +/* + * The following magic values came from AST2600 data sheet + * The register values are defined under section "FSI controller" + * as initial values. + */ +static const uint32_t aspeed_apb2opb_reset[ASPEED_APB2OPB_NR_REGS] =3D { + [APB2OPB_VERSION] =3D 0x000000a1, + [APB2OPB_OPB0_WRITE_WORD_ENDIAN] =3D 0x0044eee4, + [APB2OPB_OPB0_WRITE_BYTE_ENDIAN] =3D 0x0055aaff, + [APB2OPB_OPB1_WRITE_WORD_ENDIAN] =3D 0x00117717, + [APB2OPB_OPB1_WRITE_BYTE_ENDIAN] =3D 0xffaa5500, + [APB2OPB_OPB0_READ_BYTE_ENDIAN] =3D 0x0044eee4, + [APB2OPB_OPB1_READ_BYTE_ENDIAN] =3D 0x00117717 +}; + +static void fsi_opb_fsi_master_address(FSIMasterState *fsi, hwaddr addr) +{ + memory_region_transaction_begin(); + memory_region_set_address(&fsi->iomem, addr); + memory_region_transaction_commit(); +} + +static void fsi_opb_opb2fsi_address(FSIMasterState *fsi, hwaddr addr) +{ + memory_region_transaction_begin(); + memory_region_set_address(&fsi->opb2fsi, addr); + memory_region_transaction_commit(); +} + +static uint64_t fsi_aspeed_apb2opb_read(void *opaque, hwaddr addr, + unsigned size) +{ + AspeedAPB2OPBState *s =3D ASPEED_APB2OPB(opaque); + unsigned int reg =3D TO_REG(addr); + + trace_fsi_aspeed_apb2opb_read(addr, size); + + if (reg >=3D ASPEED_APB2OPB_NR_REGS) { + qemu_log_mask(LOG_GUEST_ERROR, + "%s: Out of bounds read: 0x%"HWADDR_PRIx" for %u\n", + __func__, addr, size); + return 0; + } + + return s->regs[reg]; +} + +static void fsi_aspeed_apb2opb_write(void *opaque, hwaddr addr, uint64_t d= ata, + unsigned size) +{ + AspeedAPB2OPBState *s =3D ASPEED_APB2OPB(opaque); + unsigned int reg =3D TO_REG(addr); + + trace_fsi_aspeed_apb2opb_write(addr, size, data); + + if (reg >=3D ASPEED_APB2OPB_NR_REGS) { + qemu_log_mask(LOG_GUEST_ERROR, + "%s: Out of bounds write: %"HWADDR_PRIx" for %u\n", + __func__, addr, size); + return; + } + + switch (reg) { + case APB2OPB_CONTROL: + fsi_opb_fsi_master_address(&s->fsi[0], + data & APB2OPB_CONTROL_OFF); + break; + case APB2OPB_OPB2FSI: + fsi_opb_opb2fsi_address(&s->fsi[0], + data & APB2OPB_OPB2FSI_OFF); + break; + case APB2OPB_OPB0_WRITE_WORD_ENDIAN: + if (data !=3D APB2OPB_OPB0_WRITE_WORD_ENDIAN_BE) { + qemu_log_mask(LOG_GUEST_ERROR, + "%s: Bridge needs to be driven as BE (0x%x)\n", + __func__, APB2OPB_OPB0_WRITE_WORD_ENDIAN_BE); + } + break; + case APB2OPB_OPB0_WRITE_BYTE_ENDIAN: + if (data !=3D APB2OPB_OPB0_WRITE_BYTE_ENDIAN_BE) { + qemu_log_mask(LOG_GUEST_ERROR, + "%s: Bridge needs to be driven as BE (0x%x)\n", + __func__, APB2OPB_OPB0_WRITE_BYTE_ENDIAN_BE); + } + break; + case APB2OPB_OPB0_READ_BYTE_ENDIAN: + if (data !=3D APB2OPB_OPB0_READ_WORD_ENDIAN_BE) { + qemu_log_mask(LOG_GUEST_ERROR, + "%s: Bridge needs to be driven as BE (0x%x)\n", + __func__, APB2OPB_OPB0_READ_WORD_ENDIAN_BE); + } + break; + case APB2OPB_TRIGGER: + { + uint32_t opb, op_mode, op_size, op_addr, op_data; + MemTxResult result; + bool is_write; + int index; + AddressSpace *as; + + assert((s->regs[APB2OPB_OPB0_SEL] & APB2OPB_OPB_SEL_EN) ^ + (s->regs[APB2OPB_OPB1_SEL] & APB2OPB_OPB_SEL_EN)); + + if (s->regs[APB2OPB_OPB0_SEL] & APB2OPB_OPB_SEL_EN) { + opb =3D 0; + op_mode =3D s->regs[APB2OPB_OPB0_MODE]; + op_size =3D s->regs[APB2OPB_OPB0_XFER]; + op_addr =3D s->regs[APB2OPB_OPB0_ADDR]; + op_data =3D s->regs[APB2OPB_OPB0_WRITE_DATA]; + } else if (s->regs[APB2OPB_OPB1_SEL] & APB2OPB_OPB_SEL_EN) { + opb =3D 1; + op_mode =3D s->regs[APB2OPB_OPB1_MODE]; + op_size =3D s->regs[APB2OPB_OPB1_XFER]; + op_addr =3D s->regs[APB2OPB_OPB1_ADDR]; + op_data =3D s->regs[APB2OPB_OPB1_WRITE_DATA]; + } else { + qemu_log_mask(LOG_GUEST_ERROR, + "%s: Invalid operation: 0x%"HWADDR_PRIx" for %u\= n", + __func__, addr, size); + return; + } + + if (op_size & ~(APB2OPB_OPB_XFER_HALF | APB2OPB_OPB_XFER_FULL)) { + qemu_log_mask(LOG_GUEST_ERROR, + "OPB transaction failed: Unrecognized access wid= th: %d\n", + op_size); + return; + } + + op_size +=3D 1; + is_write =3D !(op_mode & APB2OPB_OPB_MODE_RD); + index =3D opb ? APB2OPB_OPB1_READ_DATA : APB2OPB_OPB0_READ_DATA; + as =3D &s->opb[opb].as; + + result =3D address_space_rw(as, op_addr, MEMTXATTRS_UNSPECIFIED, + &op_data, op_size, is_write); + if (result !=3D MEMTX_OK) { + qemu_log_mask(LOG_GUEST_ERROR, "%s: OPB %s failed @%08x\n", + __func__, is_write ? "write" : "read", op_addr); + return; + } + + if (!is_write) { + s->regs[index] =3D op_data; + } + + s->regs[APB2OPB_IRQ_STS] |=3D opb ? APB2OPB_IRQ_STS_OPB1_TX_ACK + : APB2OPB_IRQ_STS_OPB0_TX_ACK; + break; + } + } + + s->regs[reg] =3D data; +} + +static const struct MemoryRegionOps aspeed_apb2opb_ops =3D { + .read =3D fsi_aspeed_apb2opb_read, + .write =3D fsi_aspeed_apb2opb_write, + .valid.max_access_size =3D 4, + .valid.min_access_size =3D 4, + .impl.max_access_size =3D 4, + .impl.min_access_size =3D 4, + .endianness =3D DEVICE_LITTLE_ENDIAN, +}; + +static void fsi_aspeed_apb2opb_init(Object *o) +{ + AspeedAPB2OPBState *s =3D ASPEED_APB2OPB(o); + int i; + + for (i =3D 0; i < ASPEED_FSI_NUM; i++) { + object_initialize_child(o, "fsi-master[*]", &s->fsi[i], + TYPE_FSI_MASTER); + } +} + +static void fsi_aspeed_apb2opb_realize(DeviceState *dev, Error **errp) +{ + SysBusDevice *sbd =3D SYS_BUS_DEVICE(dev); + AspeedAPB2OPBState *s =3D ASPEED_APB2OPB(dev); + int i; + + for (i =3D 0; i < ASPEED_FSI_NUM; i++) { + qbus_init(&s->opb[i], sizeof(s->opb[i]), TYPE_OP_BUS, DEVICE(s), + NULL); + } + + sysbus_init_irq(sbd, &s->irq); + + memory_region_init_io(&s->iomem, OBJECT(s), &aspeed_apb2opb_ops, s, + TYPE_ASPEED_APB2OPB, 0x1000); + sysbus_init_mmio(sbd, &s->iomem); + + for (i =3D 0; i < ASPEED_FSI_NUM; i++) { + if (!qdev_realize(DEVICE(&s->fsi[i]), BUS(&s->opb[i]), errp)) { + return; + } + + memory_region_add_subregion(&s->opb[i].mr, 0x80000000, + &s->fsi[i].iomem); + + memory_region_add_subregion(&s->opb[i].mr, 0xa0000000, + &s->fsi[i].opb2fsi); + } +} + +static void fsi_aspeed_apb2opb_reset(DeviceState *dev) +{ + AspeedAPB2OPBState *s =3D ASPEED_APB2OPB(dev); + + memcpy(s->regs, aspeed_apb2opb_reset, ASPEED_APB2OPB_NR_REGS); +} + +static void fsi_aspeed_apb2opb_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc =3D DEVICE_CLASS(klass); + + dc->desc =3D "ASPEED APB2OPB Bridge"; + dc->realize =3D fsi_aspeed_apb2opb_realize; + dc->reset =3D fsi_aspeed_apb2opb_reset; +} + +static const TypeInfo aspeed_apb2opb_info =3D { + .name =3D TYPE_ASPEED_APB2OPB, + .parent =3D TYPE_SYS_BUS_DEVICE, + .instance_init =3D fsi_aspeed_apb2opb_init, + .instance_size =3D sizeof(AspeedAPB2OPBState), + .class_init =3D fsi_aspeed_apb2opb_class_init, +}; + +static void aspeed_apb2opb_register_types(void) +{ + type_register_static(&aspeed_apb2opb_info); +} + +type_init(aspeed_apb2opb_register_types); + +static void fsi_opb_init(Object *o) +{ + OPBus *opb =3D OP_BUS(o); + + memory_region_init(&opb->mr, 0, TYPE_FSI_OPB, UINT32_MAX); + address_space_init(&opb->as, &opb->mr, TYPE_FSI_OPB); +} + +static const TypeInfo opb_info =3D { + .name =3D TYPE_OP_BUS, + .parent =3D TYPE_BUS, + .instance_init =3D fsi_opb_init, + .instance_size =3D sizeof(OPBus), +}; + +static void fsi_opb_register_types(void) +{ + type_register_static(&opb_info); +} + +type_init(fsi_opb_register_types); diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig index 218b454e97..744f05087f 100644 --- a/hw/arm/Kconfig +++ b/hw/arm/Kconfig @@ -574,6 +574,7 @@ config ASPEED_SOC select LED select PMBUS select MAX31785 + select FSI_APB2OPB_ASPEED =20 config MPS2 bool diff --git a/hw/fsi/Kconfig b/hw/fsi/Kconfig index 9c34a418d7..9cee657a0f 100644 --- a/hw/fsi/Kconfig +++ b/hw/fsi/Kconfig @@ -1,2 +1,7 @@ +config FSI_APB2OPB_ASPEED + bool + depends on ASPEED_SOC + select FSI + config FSI bool diff --git a/hw/fsi/meson.build b/hw/fsi/meson.build index 7803b3afd1..a18a076552 100644 --- a/hw/fsi/meson.build +++ b/hw/fsi/meson.build @@ -1 +1,2 @@ system_ss.add(when: 'CONFIG_FSI', if_true: files('lbus.c','fsi.c','cfam.c'= ,'fsi-master.c')) +system_ss.add(when: 'CONFIG_FSI_APB2OPB_ASPEED', if_true: files('aspeed_ap= b2opb.c')) diff --git a/hw/fsi/trace-events b/hw/fsi/trace-events index bf417b6dc3..9e286d08d3 100644 --- a/hw/fsi/trace-events +++ b/hw/fsi/trace-events @@ -9,3 +9,5 @@ fsi_cfam_unimplemented_write(uint64_t addr, uint32_t size, = uint64_t data) "@0x%" fsi_cfam_config_write_noaddr(uint64_t addr, uint32_t size, uint64_t data) = "@0x%" PRIx64 " size=3D%d value=3D0x%"PRIx64 fsi_master_read(uint64_t addr, uint32_t size) "@0x%" PRIx64 " size=3D%d" fsi_master_write(uint64_t addr, uint32_t size, uint64_t data) "@0x%" PRIx6= 4 " size=3D%d value=3D0x%"PRIx64 +fsi_aspeed_apb2opb_read(uint64_t addr, uint32_t size) "@0x%" PRIx64 " size= =3D%d" +fsi_aspeed_apb2opb_write(uint64_t addr, uint32_t size, uint64_t data) "@0x= %" PRIx64 " size=3D%d value=3D0x%"PRIx64 --=20 2.39.2 From nobody Tue Nov 26 14:47:27 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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b=tDhj7W88RiUGB9dEeoLejT6lLTjhmVb0KC7xUwlEsGck/1KltnVmPzdlLfrFRuyGtBwC fkAZzCPeVmRS9SmSUlmMhdGP/Jf1H8nHSFAMH1KGHCsRHpG/fbrCD5cVm+79iFEnQx+k j7YM8A7pxeqSXUwIRSv5nJFJvJKLEovHMz6hi/4IGWGPmVhq67K1Qml3f4m22xG5yCDf CdA1fF15sB8u2EI5u7s431JzOlWKXk996/hCVHGCcL0l0RbEzOGB7ZZuSHRg2tLsUJEI gDFbEDYHWJROlGsyd4k87mgrCs3lV9i0GMK6a93yl8X5YH3y8ShfXWgEYhH5I+k5Z6YR rw== From: Ninad Palsule To: qemu-devel@nongnu.org, clg@kaod.org, peter.maydell@linaro.org, andrew@codeconstruct.com.au, joel@jms.id.au, pbonzini@redhat.com, marcandre.lureau@redhat.com, berrange@redhat.com, thuth@redhat.com, philmd@linaro.org, lvivier@redhat.com Cc: Ninad Palsule , qemu-arm@nongnu.org, Andrew Jeffery Subject: [PATCH v11 08/11] hw/arm: Hook up FSI module in AST2600 Date: Thu, 25 Jan 2024 21:40:23 -0600 Message-Id: <20240126034026.31068-9-ninad@linux.ibm.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240126034026.31068-1-ninad@linux.ibm.com> References: <20240126034026.31068-1-ninad@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: AZ4RlxFZwHiOOZiYkSYfD0CNfzjRgkqD X-Proofpoint-GUID: Pol9o7NKL0LyPQXbC86chHpJrhFvmok_ X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-01-25_14,2024-01-25_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 lowpriorityscore=0 clxscore=1015 suspectscore=0 impostorscore=0 malwarescore=0 spamscore=0 phishscore=0 bulkscore=0 priorityscore=1501 mlxlogscore=672 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2401260024 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=148.163.156.1; envelope-from=ninad@linux.ibm.com; helo=mx0a-001b2d01.pphosted.com X-Spam_score_int: -19 X-Spam_score: -2.0 X-Spam_bar: -- X-Spam_report: (-2.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @ibm.com) X-ZM-MESSAGEID: 1706240502290100001 This patchset introduces IBM's Flexible Service Interface(FSI). Time for some fun with inter-processor buses. FSI allows a service processor access to the internal buses of a host POWER processor to perform configuration or debugging. FSI has long existed in POWER processes and so comes with some baggage, including how it has been integrated into the ASPEED SoC. Working backwards from the POWER processor, the fundamental pieces of interest for the implementation are: 1. The Common FRU Access Macro (CFAM), an address space containing various "engines" that drive accesses on buses internal and external to the POWER chip. Examples include the SBEFIFO and I2C masters. The engines hang off of an internal Local Bus (LBUS) which is described by the CFAM configuration block. 2. The FSI slave: The slave is the terminal point of the FSI bus for FSI symbols addressed to it. Slaves can be cascaded off of one another. The slave's configuration registers appear in address space of the CFAM to which it is attached. 3. The FSI master: A controller in the platform service processor (e.g. BMC) driving CFAM engine accesses into the POWER chip. At the hardware level FSI is a bit-based protocol supporting synchronous and DMA-driven accesses of engines in a CFAM. 4. The On-Chip Peripheral Bus (OPB): A low-speed bus typically found in POWER processors. This now makes an appearance in the ASPEED SoC due to tight integration of the FSI master IP with the OPB, mainly the existence of an MMIO-mapping of the CFAM address straight onto a sub-region of the OPB address space. 5. An APB-to-OPB bridge enabling access to the OPB from the ARM core in the AST2600. Hardware limitations prevent the OPB from being directly mapped into APB, so all accesses are indirect through the bridge. The implementation appears as following in the qemu device tree: (qemu) info qtree bus: main-system-bus type System ... dev: aspeed.apb2opb, id "" gpio-out "sysbus-irq" 1 mmio 000000001e79b000/0000000000001000 bus: opb.1 type opb dev: fsi.master, id "" bus: fsi.bus.1 type fsi.bus dev: cfam.config, id "" dev: cfam, id "" bus: fsi.lbus.1 type lbus dev: scratchpad, id "" address =3D 0 (0x0) bus: opb.0 type opb dev: fsi.master, id "" bus: fsi.bus.0 type fsi.bus dev: cfam.config, id "" dev: cfam, id "" bus: fsi.lbus.0 type lbus dev: scratchpad, id "" address =3D 0 (0x0) The LBUS is modelled to maintain the qdev bus hierarchy and to take advantage of the object model to automatically generate the CFAM configuration block. The configuration block presents engines in the order they are attached to the CFAM's LBUS. Engine implementations should subclass the LBusDevice and set the 'config' member of LBusDeviceClass to match the engine's type. CFAM designs offer a lot of flexibility, for instance it is possible for a CFAM to be simultaneously driven from multiple FSI links. The modeling is not so complete; it's assumed that each CFAM is attached to a single FSI slave (as a consequence the CFAM subclasses the FSI slave). As for FSI, its symbols and wire-protocol are not modelled at all. This is not necessary to get FSI off the ground thanks to the mapping of the CFAM address space onto the OPB address space - the models follow this directly and map the CFAM memory region into the OPB's memory region. Future work includes supporting more advanced accesses that drive the FSI master directly rather than indirectly via the CFAM mapping, which will require implementing the FSI state machine and methods for each of the FSI symbols on the slave. Further down the track we can also look at supporting the bitbanged SoftFSI drivers in Linux by extending the FSI slave model to resolve sequences of GPIO IRQs into FSI symbols, and calling the associated symbol method on the slave to map the access onto the CFAM. Testing: Tested by reading cfam config address 0 on rainier machine type. root@p10bmc:~# pdbg -a getcfam 0x0 p0: 0x0 =3D 0xc0022d15 Signed-off-by: Andrew Jeffery Signed-off-by: C=C3=A9dric Le Goater Reviewed-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: C=C3=A9dric Le Goater Signed-off-by: Ninad Palsule --- include/hw/arm/aspeed_soc.h | 4 ++++ hw/arm/aspeed_ast2600.c | 19 +++++++++++++++++++ 2 files changed, 23 insertions(+) diff --git a/include/hw/arm/aspeed_soc.h b/include/hw/arm/aspeed_soc.h index cb832bc1ee..563767af35 100644 --- a/include/hw/arm/aspeed_soc.h +++ b/include/hw/arm/aspeed_soc.h @@ -36,6 +36,7 @@ #include "hw/misc/aspeed_lpc.h" #include "hw/misc/unimp.h" #include "hw/misc/aspeed_peci.h" +#include "hw/fsi/aspeed_apb2opb.h" #include "hw/char/serial.h" =20 #define ASPEED_SPIS_NUM 2 @@ -90,6 +91,7 @@ struct AspeedSoCState { UnimplementedDeviceState udc; UnimplementedDeviceState sgpiom; UnimplementedDeviceState jtag[ASPEED_JTAG_NUM]; + AspeedAPB2OPBState fsi[2]; }; =20 #define TYPE_ASPEED_SOC "aspeed-soc" @@ -214,6 +216,8 @@ enum { ASPEED_DEV_SGPIOM, ASPEED_DEV_JTAG0, ASPEED_DEV_JTAG1, + ASPEED_DEV_FSI1, + ASPEED_DEV_FSI2, }; =20 #define ASPEED_SOC_SPI_BOOT_ADDR 0x0 diff --git a/hw/arm/aspeed_ast2600.c b/hw/arm/aspeed_ast2600.c index 3a9a303ab8..30da88361b 100644 --- a/hw/arm/aspeed_ast2600.c +++ b/hw/arm/aspeed_ast2600.c @@ -75,6 +75,8 @@ static const hwaddr aspeed_soc_ast2600_memmap[] =3D { [ASPEED_DEV_UART12] =3D 0x1E790600, [ASPEED_DEV_UART13] =3D 0x1E790700, [ASPEED_DEV_VUART] =3D 0x1E787000, + [ASPEED_DEV_FSI1] =3D 0x1E79B000, + [ASPEED_DEV_FSI2] =3D 0x1E79B100, [ASPEED_DEV_I3C] =3D 0x1E7A0000, [ASPEED_DEV_SDRAM] =3D 0x80000000, }; @@ -132,6 +134,8 @@ static const int aspeed_soc_ast2600_irqmap[] =3D { [ASPEED_DEV_ETH4] =3D 33, [ASPEED_DEV_KCS] =3D 138, /* 138 -> 142 */ [ASPEED_DEV_DP] =3D 62, + [ASPEED_DEV_FSI1] =3D 100, + [ASPEED_DEV_FSI2] =3D 101, [ASPEED_DEV_I3C] =3D 102, /* 102 -> 107 */ }; =20 @@ -264,6 +268,10 @@ static void aspeed_soc_ast2600_init(Object *obj) object_initialize_child(obj, "emmc-boot-controller", &s->emmc_boot_controller, TYPE_UNIMPLEMENTED_DEVICE); + + for (i =3D 0; i < ASPEED_FSI_NUM; i++) { + object_initialize_child(obj, "fsi[*]", &s->fsi[i], TYPE_ASPEED_APB= 2OPB); + } } =20 /* @@ -623,6 +631,17 @@ static void aspeed_soc_ast2600_realize(DeviceState *de= v, Error **errp) return; } aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->sbc), 0, sc->memmap[ASPEED_DEV_S= BC]); + + /* FSI */ + for (i =3D 0; i < ASPEED_FSI_NUM; i++) { + if (!sysbus_realize(SYS_BUS_DEVICE(&s->fsi[i]), errp)) { + return; + } + aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->fsi[i]), 0, + sc->memmap[ASPEED_DEV_FSI1 + i]); + sysbus_connect_irq(SYS_BUS_DEVICE(&s->fsi[i]), 0, + aspeed_soc_get_irq(s, ASPEED_DEV_FSI1 + i)); + } } =20 static void aspeed_soc_ast2600_class_init(ObjectClass *oc, void *data) --=20 2.39.2 From nobody Tue Nov 26 14:47:27 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=reject dis=none) header.from=linux.ibm.com ARC-Seal: i=1; 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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=148.163.158.5; envelope-from=ninad@linux.ibm.com; helo=mx0b-001b2d01.pphosted.com X-Spam_score_int: -19 X-Spam_score: -2.0 X-Spam_bar: -- X-Spam_report: (-2.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @ibm.com) X-ZM-MESSAGEID: 1706240572109100001 Content-Type: text/plain; charset="utf-8" Added basic qtests for FSI model. Acked-by: Thomas Huth Signed-off-by: Ninad Palsule --- v11: - Removed Cedric's signoff --- tests/qtest/aspeed-fsi-test.c | 205 ++++++++++++++++++++++++++++++++++ tests/qtest/meson.build | 1 + 2 files changed, 206 insertions(+) create mode 100644 tests/qtest/aspeed-fsi-test.c diff --git a/tests/qtest/aspeed-fsi-test.c b/tests/qtest/aspeed-fsi-test.c new file mode 100644 index 0000000000..b3020dd821 --- /dev/null +++ b/tests/qtest/aspeed-fsi-test.c @@ -0,0 +1,205 @@ +/* + * QTest testcases for IBM's Flexible Service Interface (FSI) + * + * Copyright (c) 2023 IBM Corporation + * + * Authors: + * Ninad Palsule + * + * This work is licensed under the terms of the GNU GPL, version 2 or late= r. + * See the COPYING file in the top-level directory. + */ + +#include "qemu/osdep.h" +#include + +#include "qemu/module.h" +#include "libqtest-single.h" + +/* Registers from ast2600 specifications */ +#define ASPEED_FSI_ENGINER_TRIGGER 0x04 +#define ASPEED_FSI_OPB0_BUS_SELECT 0x10 +#define ASPEED_FSI_OPB1_BUS_SELECT 0x28 +#define ASPEED_FSI_OPB0_RW_DIRECTION 0x14 +#define ASPEED_FSI_OPB1_RW_DIRECTION 0x2c +#define ASPEED_FSI_OPB0_XFER_SIZE 0x18 +#define ASPEED_FSI_OPB1_XFER_SIZE 0x30 +#define ASPEED_FSI_OPB0_BUS_ADDR 0x1c +#define ASPEED_FSI_OPB1_BUS_ADDR 0x34 +#define ASPEED_FSI_INTRRUPT_CLEAR 0x40 +#define ASPEED_FSI_INTRRUPT_STATUS 0x48 +#define ASPEED_FSI_OPB0_BUS_STATUS 0x80 +#define ASPEED_FSI_OPB1_BUS_STATUS 0x8c +#define ASPEED_FSI_OPB0_READ_DATA 0x84 +#define ASPEED_FSI_OPB1_READ_DATA 0x90 + +/* + * FSI Base addresses from the ast2600 specifications. + */ +#define AST2600_OPB_FSI0_BASE_ADDR 0x1e79b000 +#define AST2600_OPB_FSI1_BASE_ADDR 0x1e79b100 + +static uint32_t aspeed_fsi_base_addr; + +static uint32_t aspeed_fsi_readl(QTestState *s, uint32_t reg) +{ + return qtest_readl(s, aspeed_fsi_base_addr + reg); +} + +static void aspeed_fsi_writel(QTestState *s, uint32_t reg, uint32_t val) +{ + qtest_writel(s, aspeed_fsi_base_addr + reg, val); +} + +/* Setup base address and select register */ +static void test_fsi_setup(QTestState *s, uint32_t base_addr) +{ + uint32_t curval; + + aspeed_fsi_base_addr =3D base_addr; + + /* Set the base select register */ + if (base_addr =3D=3D AST2600_OPB_FSI0_BASE_ADDR) { + /* Unselect FSI1 */ + aspeed_fsi_writel(s, ASPEED_FSI_OPB1_BUS_SELECT, 0x0); + curval =3D aspeed_fsi_readl(s, ASPEED_FSI_OPB1_BUS_SELECT); + g_assert_cmpuint(curval, =3D=3D, 0x0); + + /* Select FSI0 */ + aspeed_fsi_writel(s, ASPEED_FSI_OPB0_BUS_SELECT, 0x1); + curval =3D aspeed_fsi_readl(s, ASPEED_FSI_OPB0_BUS_SELECT); + g_assert_cmpuint(curval, =3D=3D, 0x1); + } else if (base_addr =3D=3D AST2600_OPB_FSI1_BASE_ADDR) { + /* Unselect FSI0 */ + aspeed_fsi_writel(s, ASPEED_FSI_OPB0_BUS_SELECT, 0x0); + curval =3D aspeed_fsi_readl(s, ASPEED_FSI_OPB0_BUS_SELECT); + g_assert_cmpuint(curval, =3D=3D, 0x0); + + /* Select FSI1 */ + aspeed_fsi_writel(s, ASPEED_FSI_OPB1_BUS_SELECT, 0x1); + curval =3D aspeed_fsi_readl(s, ASPEED_FSI_OPB1_BUS_SELECT); + g_assert_cmpuint(curval, =3D=3D, 0x1); + } else { + g_assert_not_reached(); + } +} + +static void test_fsi_reg_change(QTestState *s, uint32_t reg, uint32_t newv= al) +{ + uint32_t base; + uint32_t curval; + + base =3D aspeed_fsi_readl(s, reg); + aspeed_fsi_writel(s, reg, newval); + curval =3D aspeed_fsi_readl(s, reg); + g_assert_cmpuint(curval, =3D=3D, newval); + aspeed_fsi_writel(s, reg, base); + curval =3D aspeed_fsi_readl(s, reg); + g_assert_cmpuint(curval, =3D=3D, base); +} + +static void test_fsi0_master_regs(const void *data) +{ + QTestState *s =3D (QTestState *)data; + + test_fsi_setup(s, AST2600_OPB_FSI0_BASE_ADDR); + + test_fsi_reg_change(s, ASPEED_FSI_OPB0_RW_DIRECTION, 0xF3F4F514); + test_fsi_reg_change(s, ASPEED_FSI_OPB0_XFER_SIZE, 0xF3F4F518); + test_fsi_reg_change(s, ASPEED_FSI_OPB0_BUS_ADDR, 0xF3F4F51c); + test_fsi_reg_change(s, ASPEED_FSI_INTRRUPT_CLEAR, 0xF3F4F540); + test_fsi_reg_change(s, ASPEED_FSI_INTRRUPT_STATUS, 0xF3F4F548); + test_fsi_reg_change(s, ASPEED_FSI_OPB0_BUS_STATUS, 0xF3F4F580); + test_fsi_reg_change(s, ASPEED_FSI_OPB0_READ_DATA, 0xF3F4F584); +} + +static void test_fsi1_master_regs(const void *data) +{ + QTestState *s =3D (QTestState *)data; + + test_fsi_setup(s, AST2600_OPB_FSI1_BASE_ADDR); + + test_fsi_reg_change(s, ASPEED_FSI_OPB1_RW_DIRECTION, 0xF3F4F514); + test_fsi_reg_change(s, ASPEED_FSI_OPB1_XFER_SIZE, 0xF3F4F518); + test_fsi_reg_change(s, ASPEED_FSI_OPB1_BUS_ADDR, 0xF3F4F51c); + test_fsi_reg_change(s, ASPEED_FSI_INTRRUPT_CLEAR, 0xF3F4F540); + test_fsi_reg_change(s, ASPEED_FSI_INTRRUPT_STATUS, 0xF3F4F548); + test_fsi_reg_change(s, ASPEED_FSI_OPB1_BUS_STATUS, 0xF3F4F580); + test_fsi_reg_change(s, ASPEED_FSI_OPB1_READ_DATA, 0xF3F4F584); +} + +static void test_fsi0_getcfam_addr0(const void *data) +{ + QTestState *s =3D (QTestState *)data; + uint32_t curval; + + test_fsi_setup(s, AST2600_OPB_FSI0_BASE_ADDR); + + /* Master access direction read */ + aspeed_fsi_writel(s, ASPEED_FSI_OPB0_RW_DIRECTION, 0x1); + /* word */ + aspeed_fsi_writel(s, ASPEED_FSI_OPB0_XFER_SIZE, 0x3); + /* Address */ + aspeed_fsi_writel(s, ASPEED_FSI_OPB0_BUS_ADDR, 0xa0000000); + aspeed_fsi_writel(s, ASPEED_FSI_INTRRUPT_CLEAR, 0x1); + aspeed_fsi_writel(s, ASPEED_FSI_ENGINER_TRIGGER, 0x1); + + curval =3D aspeed_fsi_readl(s, ASPEED_FSI_INTRRUPT_STATUS); + g_assert_cmpuint(curval, =3D=3D, 0x10000); + curval =3D aspeed_fsi_readl(s, ASPEED_FSI_OPB0_BUS_STATUS); + g_assert_cmpuint(curval, =3D=3D, 0x0); + curval =3D aspeed_fsi_readl(s, ASPEED_FSI_OPB0_READ_DATA); + g_assert_cmpuint(curval, =3D=3D, 0x152d02c0); +} + +static void test_fsi1_getcfam_addr0(const void *data) +{ + QTestState *s =3D (QTestState *)data; + uint32_t curval; + + test_fsi_setup(s, AST2600_OPB_FSI1_BASE_ADDR); + + /* Master access direction read */ + aspeed_fsi_writel(s, ASPEED_FSI_OPB1_RW_DIRECTION, 0x1); + + aspeed_fsi_writel(s, ASPEED_FSI_OPB1_XFER_SIZE, 0x3); + aspeed_fsi_writel(s, ASPEED_FSI_OPB1_BUS_ADDR, 0xa0000000); + aspeed_fsi_writel(s, ASPEED_FSI_INTRRUPT_CLEAR, 0x1); + aspeed_fsi_writel(s, ASPEED_FSI_ENGINER_TRIGGER, 0x1); + + curval =3D aspeed_fsi_readl(s, ASPEED_FSI_INTRRUPT_STATUS); + g_assert_cmpuint(curval, =3D=3D, 0x20000); + curval =3D aspeed_fsi_readl(s, ASPEED_FSI_OPB1_BUS_STATUS); + g_assert_cmpuint(curval, =3D=3D, 0x0); + curval =3D aspeed_fsi_readl(s, ASPEED_FSI_OPB1_READ_DATA); + g_assert_cmpuint(curval, =3D=3D, 0x152d02c0); +} + +int main(int argc, char **argv) +{ + int ret =3D -1; + QTestState *s; + + g_test_init(&argc, &argv, NULL); + + s =3D qtest_init("-machine ast2600-evb "); + + /* Tests for OPB/FSI0 */ + qtest_add_data_func("/aspeed-fsi-test/test_fsi0_master_regs", s, + test_fsi0_master_regs); + + qtest_add_data_func("/aspeed-fsi-test/test_fsi0_getcfam_addr0", s, + test_fsi0_getcfam_addr0); + + /* Tests for OPB/FSI1 */ + qtest_add_data_func("/aspeed-fsi-test/test_fsi1_master_regs", s, + test_fsi1_master_regs); + + qtest_add_data_func("/aspeed-fsi-test/test_fsi1_getcfam_addr0", s, + test_fsi1_getcfam_addr0); + + ret =3D g_test_run(); + qtest_quit(s); + + return ret; +} diff --git a/tests/qtest/meson.build b/tests/qtest/meson.build index 84a055a7d9..4c871fa095 100644 --- a/tests/qtest/meson.build +++ b/tests/qtest/meson.build @@ -217,6 +217,7 @@ qtests_arm =3D \ (config_all_devices.has_key('CONFIG_VEXPRESS') ? ['test-arm-mptimer'] : = []) + \ (config_all_devices.has_key('CONFIG_MICROBIT') ? ['microbit-test'] : [])= + \ (config_all_devices.has_key('CONFIG_STM32L4X5_SOC') ? qtests_stm32l4x5 := []) + \ + (config_all_devices.has_key('CONFIG_FSI_APB2OPB_ASPEED') ? ['aspeed-fsi-= test'] : []) + \ ['arm-cpu-features', 'boot-serial-test'] =20 --=20 2.39.2 From nobody Tue Nov 26 14:47:27 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=reject dis=none) header.from=linux.ibm.com ARC-Seal: i=1; a=rsa-sha256; t=1706240533; cv=none; d=zohomail.com; s=zohoarc; b=PurkcdY76R1LvzrHZa0+TI3Bv/FUgR+5epNKvJNT1snjkgkLoCX16IZOd/4/okvTbEmSXgq1fDYiHbw352Z3FmJKuOGYYZS48EtAx0Z/pl5TEmuAu7IypV/8++h7TEOC0susISPfOVcCUoVbFePyWPpyiC57hyVyQVD/U3Bxcuc= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1706240533; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; 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Fri, 26 Jan 2024 03:40:32 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : content-transfer-encoding : mime-version; s=pp1; bh=WNZ2O7bwuxdV6JBK8SqNrOXHk/HSEFNhSTfWB495W4I=; b=cTPvmG7kHQutrnaDKsDiuXPbLUk3XkJYA7/oNnNUaN81miw8PCcrU4CeMRVTAJ4Uq2cz DxBddmzzKZfi+cQ/kjIbvB64QZesEbAPFa9tknXzdZNda2LTjtOvmfUBwccfTaX3xnV/ nMuiVOxzsfgRgbDwgTL5EzDPIAgLnVxr5feX8Mcc03+6By2SFWMbNTm7Zvr2OHp0y+kz dM0QzNQgn64qqmbom5/ar7bOTDAQqwbvD1uLCnSX7s5myznCNF81tE6YrPFRdvj9o7nW hpZv1eBtHCkNgjy4xMx9u/u81wETaeQ87ZpbokCzEXTuAhu14orFevb8ZoHgLU2pQmUS yA== From: Ninad Palsule To: qemu-devel@nongnu.org, clg@kaod.org, peter.maydell@linaro.org, andrew@codeconstruct.com.au, joel@jms.id.au, pbonzini@redhat.com, marcandre.lureau@redhat.com, berrange@redhat.com, thuth@redhat.com, philmd@linaro.org, lvivier@redhat.com Cc: Ninad Palsule , qemu-arm@nongnu.org Subject: [PATCH v11 10/11] hw/fsi: Added FSI documentation Date: Thu, 25 Jan 2024 21:40:25 -0600 Message-Id: <20240126034026.31068-11-ninad@linux.ibm.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240126034026.31068-1-ninad@linux.ibm.com> References: <20240126034026.31068-1-ninad@linux.ibm.com> X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: SHlpu5KLj9EgvglQQpkf3M4Q5HkbLxKI X-Proofpoint-GUID: Q5wVB3ha-3N9OTxC43Ko0yB9WpLO_xdA Content-Transfer-Encoding: quoted-printable X-Proofpoint-UnRewURL: 0 URL was un-rewritten MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-01-25_14,2024-01-25_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 mlxscore=0 bulkscore=0 suspectscore=0 impostorscore=0 priorityscore=1501 phishscore=0 adultscore=0 malwarescore=0 clxscore=1015 spamscore=0 mlxlogscore=658 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2401260024 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=148.163.158.5; envelope-from=ninad@linux.ibm.com; helo=mx0b-001b2d01.pphosted.com X-Spam_score_int: -19 X-Spam_score: -2.0 X-Spam_bar: -- X-Spam_report: (-2.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @ibm.com) X-ZM-MESSAGEID: 1706240534009100001 Content-Type: text/plain; charset="utf-8" Documentation for IBM FSI model. Signed-off-by: Ninad Palsule --- v11: - Removed Cedri's signoff. --- docs/specs/fsi.rst | 138 +++++++++++++++++++++++++++++++++++++++++++ docs/specs/index.rst | 1 + 2 files changed, 139 insertions(+) create mode 100644 docs/specs/fsi.rst diff --git a/docs/specs/fsi.rst b/docs/specs/fsi.rst new file mode 100644 index 0000000000..05a6b6347a --- /dev/null +++ b/docs/specs/fsi.rst @@ -0,0 +1,138 @@ +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D +IBM's Flexible Service Interface (FSI) +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D + +The QEMU FSI emulation implements hardware interfaces between ASPEED SOC, = FSI +master/slave and the end engine. + +FSI is a point-to-point two wire interface which is capable of supporting +distances of up to 4 meters. FSI interfaces have been used successfully for +many years in IBM servers to attach IBM Flexible Support Processors(FSP) to +CPUs and IBM ASICs. + +FSI allows a service processor access to the internal buses of a host POWER +processor to perform configuration or debugging. FSI has long existed in P= OWER +processes and so comes with some baggage, including how it has been integr= ated +into the ASPEED SoC. + +Working backwards from the POWER processor, the fundamental pieces of inte= rest +for the implementation are: (see the `FSI specification`_ for more details) + +1. The Common FRU Access Macro (CFAM), an address space containing various + "engines" that drive accesses on buses internal and external to the POW= ER + chip. Examples include the SBEFIFO and I2C masters. The engines hang of= f of + an internal Local Bus (LBUS) which is described by the CFAM configurati= on + block. + +2. The FSI slave: The slave is the terminal point of the FSI bus for FSI + symbols addressed to it. Slaves can be cascaded off of one another. The + slave's configuration registers appear in address space of the CFAM to + which it is attached. + +3. The FSI master: A controller in the platform service processor (e.g. BM= C) + driving CFAM engine accesses into the POWER chip. At the hardware level + FSI is a bit-based protocol supporting synchronous and DMA-driven acces= ses + of engines in a CFAM. + +4. The On-Chip Peripheral Bus (OPB): A low-speed bus typically found in PO= WER + processors. This now makes an appearance in the ASPEED SoC due to tight + integration of the FSI master IP with the OPB, mainly the existence of = an + MMIO-mapping of the CFAM address straight onto a sub-region of the OPB + address space. + +5. An APB-to-OPB bridge enabling access to the OPB from the ARM core in the + AST2600. Hardware limitations prevent the OPB from being directly mapped + into APB, so all accesses are indirect through the bridge. + +The LBUS is modelled to maintain the qdev bus hierarchy and to take advant= ages +of the object model to automatically generate the CFAM configuration block. +The configuration block presents engines in the order they are attached to= the +CFAM's LBUS. Engine implementations should subclass the LBusDevice and set= the +'config' member of LBusDeviceClass to match the engine's type. + +CFAM designs offer a lot of flexibility, for instance it is possible for a +CFAM to be simultaneously driven from multiple FSI links. The modeling is = not +so complete; it's assumed that each CFAM is attached to a single FSI slave= (as +a consequence the CFAM subclasses the FSI slave). + +As for FSI, its symbols and wire-protocol are not modelled at all. This is= not +necessary to get FSI off the ground thanks to the mapping of the CFAM addr= ess +space onto the OPB address space - the models follow this directly and map= the +CFAM memory region into the OPB's memory region. + +QEMU files related to FSI interface: + - ``hw/fsi/aspeed-apb2opb.c`` + - ``include/hw/fsi/aspeed-apb2opb.h`` + - ``hw/fsi/opb.c`` + - ``include/hw/fsi/opb.h`` + - ``hw/fsi/fsi.c`` + - ``include/hw/fsi/fsi.h`` + - ``hw/fsi/fsi-master.c`` + - ``include/hw/fsi/fsi-master.h`` + - ``hw/fsi/fsi-slave.c`` + - ``include/hw/fsi/fsi-slave.h`` + - ``hw/fsi/cfam.c`` + - ``include/hw/fsi/cfam.h`` + - ``hw/fsi/engine-scratchpad.c`` + - ``include/hw/fsi/engine-scratchpad.h`` + - ``include/hw/fsi/lbus.h`` + +The following commands start the rainier machine with built-in FSI model. +There are no model specific arguments. + +.. code-block:: console + + qemu-system-arm -M rainier-bmc -nographic \ + -kernel fitImage-linux.bin \ + -dtb aspeed-bmc-ibm-rainier.dtb \ + -initrd obmc-phosphor-initramfs.rootfs.cpio.xz \ + -drive file=3Dobmc-phosphor-image.rootfs.wic.qcow2,if=3Dsd,index=3D2 \ + -append "rootwait console=3DttyS4,115200n8 root=3DPARTLABEL=3Drofs-a" + +The implementation appears as following in the qemu device tree: + +.. code-block:: console + + (qemu) info qtree + bus: main-system-bus + type System + ... + dev: aspeed.apb2opb, id "" + gpio-out "sysbus-irq" 1 + mmio 000000001e79b000/0000000000001000 + bus: opb.1 + type opb + dev: fsi.master, id "" + bus: fsi.bus.1 + type fsi.bus + dev: cfam.config, id "" + dev: cfam, id "" + bus: lbus.1 + type lbus + dev: scratchpad, id "" + address =3D 0 (0x0) + bus: opb.0 + type opb + dev: fsi.master, id "" + bus: fsi.bus.0 + type fsi.bus + dev: cfam.config, id "" + dev: cfam, id "" + bus: lbus.0 + type lbus + dev: scratchpad, id "" + address =3D 0 (0x0) + +pdbg is a simple application to allow debugging of the host POWER processo= rs +from the BMC. (see the `pdbg source repository`_ for more details) + +.. code-block:: console + + root@p10bmc:~# pdbg -a getcfam 0x0 + p0: 0x0 =3D 0xc0022d15 + +.. _FSI specification: + https://openpowerfoundation.org/specifications/fsi/ + +.. _pdbg source repository: + https://github.com/open-power/pdbg diff --git a/docs/specs/index.rst b/docs/specs/index.rst index b3f482b0aa..1484e3e760 100644 --- a/docs/specs/index.rst +++ b/docs/specs/index.rst @@ -24,6 +24,7 @@ guest hardware that is specific to QEMU. acpi_erst sev-guest-firmware fw_cfg + fsi vmw_pvscsi-spec edu ivshmem-spec --=20 2.39.2 From nobody Tue Nov 26 14:47:27 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=reject dis=none) header.from=linux.ibm.com ARC-Seal: i=1; a=rsa-sha256; t=1706240575; cv=none; d=zohomail.com; s=zohoarc; b=iuDPX/v43Zc2ow9z18/sB1D4VYe2YTsNIc8hrpB1Pf3Vjl2u1Xj800ffTtm4kQSL9Vx4luoIJtcNtldUjc7b6PvCCCtGcA1BolXGI/7JPwrG2OA3dGsL6CcidrkFBEkwRjBjhnDwLO1bdC01pQWWoLuC6hQ6RL0REXDVAya1uQ4= ARC-Message-Signature: i=1; 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Fri, 26 Jan 2024 03:40:32 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type : content-transfer-encoding; s=pp1; bh=Aeh4m6y4uSorIijoXOWHORcwePrt5iAPL8+LUhQbUYk=; b=oH2h5TrJON7P8V+O/sXvAIJ6kB0ShfhWwvT4u6ekzSrdEotEWfIsTVSolX/5wYThq4Qe FwXvh/hAz5JRLi+iM7m9sF1r+4NSeGXsmk8DnSfCcN7JcDUK43DFGYJJHXoGlGkqZCl+ eBN19v1lnkDmm4Q19qoL80k/2Axk1ADVqtCFmbNLPMbfnY/IMlPds4H9YySgcsEyVL3b QkneqCMagDDG2WEnlI7J6/SjaKnvDBKLsL/ThgBHxdrxVnkXN96UqySJQPCyL/vKVJgt 4rGm3WDAtvz5mDz2EnFGu2VzQeEv6jgtGCABEFuZNEFGh/RW7iO9G+2z40H/tU8mm18b 3Q== From: Ninad Palsule To: qemu-devel@nongnu.org, clg@kaod.org, peter.maydell@linaro.org, andrew@codeconstruct.com.au, joel@jms.id.au, pbonzini@redhat.com, marcandre.lureau@redhat.com, berrange@redhat.com, thuth@redhat.com, philmd@linaro.org, lvivier@redhat.com Cc: Ninad Palsule , qemu-arm@nongnu.org Subject: [PATCH v11 11/11] hw/fsi: Update MAINTAINER list Date: Thu, 25 Jan 2024 21:40:26 -0600 Message-Id: <20240126034026.31068-12-ninad@linux.ibm.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240126034026.31068-1-ninad@linux.ibm.com> References: <20240126034026.31068-1-ninad@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: ju8k8E0s4w2ZUT2lCCIF84w19hnrko_u X-Proofpoint-GUID: qMUiM410uthhPCYxUjdA6ul2B0__pmFv X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-01-25_14,2024-01-25_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 priorityscore=1501 malwarescore=0 impostorscore=0 lowpriorityscore=0 adultscore=0 spamscore=0 mlxscore=0 mlxlogscore=910 suspectscore=0 clxscore=1015 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2401260024 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=148.163.158.5; envelope-from=ninad@linux.ibm.com; helo=mx0b-001b2d01.pphosted.com X-Spam_score_int: -19 X-Spam_score: -2.0 X-Spam_bar: -- X-Spam_report: (-2.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @ibm.com) X-ZM-MESSAGEID: 1706240576090100001 Added maintainer for IBM FSI model Signed-off-by: Ninad Palsule Reviewed-by: C=C3=A9dric Le Goater --- v11: - Added Cedric as reviewer. --- MAINTAINERS | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index dfaca8323e..39deb8ee1f 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3585,6 +3585,15 @@ F: tests/qtest/adm1272-test.c F: tests/qtest/max34451-test.c F: tests/qtest/isl_pmbus_vr-test.c =20 +FSI +M: Ninad Palsule +R: C=C3=A9dric Le Goater +S: Maintained +F: hw/fsi/* +F: include/hw/fsi/* +F: docs/specs/fsi.rst +F: tests/qtest/fsi-test.c + Firmware schema specifications M: Philippe Mathieu-Daud=C3=A9 R: Daniel P. Berrange --=20 2.39.2