From patchwork Thu Feb 1 14:12:43 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?C=C3=A9dric_Le_Goater?= X-Patchwork-Id: 13541135 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 81E81C4828F for ; Thu, 1 Feb 2024 14:16:15 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rVXpL-0001XD-AI; Thu, 01 Feb 2024 09:14:03 -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 1rVXoq-00010A-Ms; Thu, 01 Feb 2024 09:13:37 -0500 Received: from mail.ozlabs.org ([2404:9400:2221:ea00::3] helo=gandalf.ozlabs.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rVXof-0007nX-BA; Thu, 01 Feb 2024 09:13:30 -0500 Received: from gandalf.ozlabs.org (mail.ozlabs.org [IPv6:2404:9400:2221:ea00::3]) by gandalf.ozlabs.org (Postfix) with ESMTP id 4TQgqL1rY4z4wcR; Fri, 2 Feb 2024 01:13:18 +1100 (AEDT) Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mail.ozlabs.org (Postfix) with ESMTPSA id 4TQgqJ1mSvz4wcM; Fri, 2 Feb 2024 01:13:15 +1100 (AEDT) From: =?utf-8?q?C=C3=A9dric_Le_Goater?= To: qemu-arm@nongnu.org, qemu-devel@nongnu.org Cc: Ninad Palsule , Andrew Jeffery , =?utf-8?q?C=C3=A9dric_Le_Goater?= Subject: [PULL 07/17] hw/fsi: Introduce IBM's Local bus Date: Thu, 1 Feb 2024 15:12:43 +0100 Message-ID: <20240201141253.806055-8-clg@kaod.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240201141253.806055-1-clg@kaod.org> References: <20240201141253.806055-1-clg@kaod.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2404:9400:2221:ea00::3; envelope-from=SRS0=Qo6T=JK=kaod.org=clg@ozlabs.org; helo=gandalf.ozlabs.org X-Spam_score_int: -39 X-Spam_score: -4.0 X-Spam_bar: ---- X-Spam_report: (-4.0 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.248, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Ninad Palsule 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 Signed-off-by: Ninad Palsule Reviewed-by: Cédric Le Goater [ 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: Cédric Le Goater --- 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 5ffa8c97166d..b5d6dc94a837 100644 --- a/meson.build +++ b/meson.build @@ -3289,6 +3289,7 @@ 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 000000000000..ee67c7fb04da --- /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 000000000000..e8a22e22a8fa --- /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 000000000000..44d2319087a8 --- /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 = FSI_LBUS(o); + + memory_region_init(&lbus->mr, OBJECT(lbus), TYPE_FSI_LBUS, 1 * MiB); +} + +static const TypeInfo fsi_lbus_info = { + .name = TYPE_FSI_LBUS, + .parent = TYPE_BUS, + .instance_init = fsi_lbus_init, + .instance_size = sizeof(FSILBus), +}; + +static const TypeInfo fsi_lbus_device_type_info = { + .name = TYPE_FSI_LBUS_DEVICE, + .parent = TYPE_DEVICE, + .instance_size = sizeof(FSILBusDevice), + .abstract = 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 9ca7b38c31f1..2c00936c28e8 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 000000000000..9c34a418d700 --- /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 000000000000..93ba19dd0411 --- /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 000000000000..e69de29bb2d1 diff --git a/hw/meson.build b/hw/meson.build index f01fac4617c9..463d70268304 100644 --- a/hw/meson.build +++ b/hw/meson.build @@ -44,6 +44,7 @@ subdir('virtio') subdir('watchdog') subdir('xen') subdir('xenpv') +subdir('fsi') subdir('alpha') subdir('arm')