From nobody Tue Nov 26 16:15:29 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=1706240501; cv=none; d=zohomail.com; s=zohoarc; b=Gb2DloFv8Vrap9fwh7TijAw3JgWDNU270EM3lKDK7oolj7nPIp0WlwvtacVH92ax8LsXXE847R5ujlmFeuShdGMKQRXnEssJo59T6E1F6r67kg8KqfwtK7EnZPJaJSg9MO0ZBRtUCJyk/1x4rVGlG/qJV3IR+nWpeoH5ppZSta4= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1706240501; h=Content-Type: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; bh=PBF0o+fSK8BpLD09G20HopPY7egydpZsN7pz39XRURo=; b=Q2Ebz0HrcyMc0DqkocSlhmRpSDCU00Dj2W2qCdFlBf8cXf7g+gcmF5AxoxhXJQuadsPenbO0jjt2LKWudIpVvg2jWg6kLiwP3i76A+WsIs3c0Tk2LTzwQ7MtWtYYVF2IzLQl62JDEcFlsYNud/iJb21q90MYJIy96p+2+jiwrns= ARC-Authentication-Results: i=1; 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 header.from= (p=reject dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1706240501419240.39877083910244; Thu, 25 Jan 2024 19:41:41 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rTD5G-0004ch-MP; Thu, 25 Jan 2024 22:40:50 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rTD5E-0004ae-Ja; Thu, 25 Jan 2024 22:40:48 -0500 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rTD5B-0003Na-9o; Thu, 25 Jan 2024 22:40:48 -0500 Received: from pps.filterd (m0353727.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 40Q30wAR010334; Fri, 26 Jan 2024 03:40:34 GMT Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3vv168wfb1-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 26 Jan 2024 03:40:33 +0000 Received: from m0353727.ppops.net (m0353727.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 40Q3QO7O019900; Fri, 26 Jan 2024 03:40:33 GMT Received: from ppma21.wdc07v.mail.ibm.com (5b.69.3da9.ip4.static.sl-reverse.com [169.61.105.91]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3vv168wfan-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 26 Jan 2024 03:40:32 +0000 Received: from pps.filterd (ppma21.wdc07v.mail.ibm.com [127.0.0.1]) by ppma21.wdc07v.mail.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 40Q12iM8025638; Fri, 26 Jan 2024 03:40:31 GMT Received: from smtprelay02.wdc07v.mail.ibm.com ([172.16.1.69]) by ppma21.wdc07v.mail.ibm.com (PPS) with ESMTPS id 3vrsgpgfmk-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); 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