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[176.184.33.214]) by smtp.gmail.com with ESMTPSA id cs5-20020a0564020c4500b00562d908daf4sm542409edb.84.2024.02.27.00.40.42 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Tue, 27 Feb 2024 00:40:43 -0800 (PST) From: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: qemu-ppc@nongnu.org, qemu-block@nongnu.org, qemu-arm@nongnu.org, Mark Cave-Ayland , Laurent Vivier , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= Subject: [PULL 09/30] hw/nubus: add nubus-virtio-mmio device Date: Tue, 27 Feb 2024 09:39:25 +0100 Message-ID: <20240227083948.5427-10-philmd@linaro.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20240227083948.5427-1-philmd@linaro.org> References: <20240227083948.5427-1-philmd@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::531; envelope-from=philmd@linaro.org; helo=mail-ed1-x531.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable 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: Mark Cave-Ayland The nubus-virtio-mmio device is a Nubus card that contains a set of 32 virtio-mmio devices and a goldfish PIC similar to the m68k virt machine that can be plugged into the m68k q800 machine. There are currently a number of drivers under development that can be used in conjunction with this device to provide accelerated and/or additional hypervisor services to 68k Classic MacOS. Signed-off-by: Mark Cave-Ayland Reviewed-by: Laurent Vivier Message-ID: <20240111102954.449462-4-mark.cave-ayland@ilande.co.uk> Signed-off-by: Philippe Mathieu-Daudé --- include/hw/nubus/nubus-virtio-mmio.h | 36 ++++++++++ hw/nubus/nubus-virtio-mmio.c | 102 +++++++++++++++++++++++++++ hw/nubus/meson.build | 1 + 3 files changed, 139 insertions(+) create mode 100644 include/hw/nubus/nubus-virtio-mmio.h create mode 100644 hw/nubus/nubus-virtio-mmio.c diff --git a/include/hw/nubus/nubus-virtio-mmio.h b/include/hw/nubus/nubus-virtio-mmio.h new file mode 100644 index 0000000000..de497b7f76 --- /dev/null +++ b/include/hw/nubus/nubus-virtio-mmio.h @@ -0,0 +1,36 @@ +/* + * QEMU Macintosh Nubus Virtio MMIO card + * + * Copyright (c) 2023 Mark Cave-Ayland + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#ifndef HW_NUBUS_VIRTIO_MMIO_H +#define HW_NUBUS_VIRTIO_MMIO_H + +#include "hw/nubus/nubus.h" +#include "qom/object.h" +#include "hw/intc/goldfish_pic.h" +#include "hw/virtio/virtio-mmio.h" + +#define TYPE_NUBUS_VIRTIO_MMIO "nubus-virtio-mmio" +OBJECT_DECLARE_TYPE(NubusVirtioMMIO, NubusVirtioMMIODeviceClass, + NUBUS_VIRTIO_MMIO) + +struct NubusVirtioMMIODeviceClass { + DeviceClass parent_class; + + DeviceRealize parent_realize; +}; + +#define NUBUS_VIRTIO_MMIO_NUM_DEVICES 32 + +struct NubusVirtioMMIO { + NubusDevice parent_obj; + + GoldfishPICState pic; + VirtIOMMIOProxy virtio_mmio[NUBUS_VIRTIO_MMIO_NUM_DEVICES]; +}; + +#endif diff --git a/hw/nubus/nubus-virtio-mmio.c b/hw/nubus/nubus-virtio-mmio.c new file mode 100644 index 0000000000..58a63c84d0 --- /dev/null +++ b/hw/nubus/nubus-virtio-mmio.c @@ -0,0 +1,102 @@ +/* + * QEMU Macintosh Nubus Virtio MMIO card + * + * Copyright (c) 2024 Mark Cave-Ayland + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#include "qemu/osdep.h" +#include "hw/nubus/nubus-virtio-mmio.h" + + +#define NUBUS_VIRTIO_MMIO_PIC_OFFSET 0 +#define NUBUS_VIRTIO_MMIO_DEV_OFFSET 0x200 + + +static void nubus_virtio_mmio_set_input_irq(void *opaque, int n, int level) +{ + NubusDevice *nd = NUBUS_DEVICE(opaque); + + nubus_set_irq(nd, level); +} + +static void nubus_virtio_mmio_realize(DeviceState *dev, Error **errp) +{ + NubusVirtioMMIODeviceClass *nvmdc = NUBUS_VIRTIO_MMIO_GET_CLASS(dev); + NubusVirtioMMIO *s = NUBUS_VIRTIO_MMIO(dev); + NubusDevice *nd = NUBUS_DEVICE(dev); + SysBusDevice *sbd; + int i, offset; + + nvmdc->parent_realize(dev, errp); + if (*errp) { + return; + } + + /* Goldfish PIC */ + sbd = SYS_BUS_DEVICE(&s->pic); + if (!sysbus_realize(sbd, errp)) { + return; + } + memory_region_add_subregion(&nd->slot_mem, NUBUS_VIRTIO_MMIO_PIC_OFFSET, + sysbus_mmio_get_region(sbd, 0)); + sysbus_connect_irq(sbd, 0, + qdev_get_gpio_in_named(dev, "pic-input-irq", 0)); + + /* virtio-mmio devices */ + offset = NUBUS_VIRTIO_MMIO_DEV_OFFSET; + for (i = 0; i < NUBUS_VIRTIO_MMIO_NUM_DEVICES; i++) { + sbd = SYS_BUS_DEVICE(&s->virtio_mmio[i]); + qdev_prop_set_bit(DEVICE(sbd), "force-legacy", false); + if (!sysbus_realize_and_unref(sbd, errp)) { + return; + } + + memory_region_add_subregion(&nd->slot_mem, offset, + sysbus_mmio_get_region(sbd, 0)); + offset += 0x200; + + sysbus_connect_irq(sbd, 0, qdev_get_gpio_in(DEVICE(&s->pic), i)); + } +} + +static void nubus_virtio_mmio_init(Object *obj) +{ + NubusVirtioMMIO *s = NUBUS_VIRTIO_MMIO(obj); + int i; + + object_initialize_child(obj, "pic", &s->pic, TYPE_GOLDFISH_PIC); + for (i = 0; i < NUBUS_VIRTIO_MMIO_NUM_DEVICES; i++) { + char *name = g_strdup_printf("virtio-mmio[%d]", i); + object_initialize_child(obj, name, &s->virtio_mmio[i], + TYPE_VIRTIO_MMIO); + g_free(name); + } + + /* Input from goldfish PIC */ + qdev_init_gpio_in_named(DEVICE(obj), nubus_virtio_mmio_set_input_irq, + "pic-input-irq", 1); +} + +static void nubus_virtio_mmio_class_init(ObjectClass *oc, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(oc); + NubusVirtioMMIODeviceClass *nvmdc = NUBUS_VIRTIO_MMIO_CLASS(oc); + + device_class_set_parent_realize(dc, nubus_virtio_mmio_realize, + &nvmdc->parent_realize); +} + +static const TypeInfo nubus_virtio_mmio_types[] = { + { + .name = TYPE_NUBUS_VIRTIO_MMIO, + .parent = TYPE_NUBUS_DEVICE, + .instance_init = nubus_virtio_mmio_init, + .instance_size = sizeof(NubusVirtioMMIO), + .class_init = nubus_virtio_mmio_class_init, + .class_size = sizeof(NubusVirtioMMIODeviceClass), + }, +}; + +DEFINE_TYPES(nubus_virtio_mmio_types) diff --git a/hw/nubus/meson.build b/hw/nubus/meson.build index e7ebda8993..9a7a12ea68 100644 --- a/hw/nubus/meson.build +++ b/hw/nubus/meson.build @@ -2,6 +2,7 @@ nubus_ss = ss.source_set() nubus_ss.add(files('nubus-device.c')) nubus_ss.add(files('nubus-bus.c')) nubus_ss.add(files('nubus-bridge.c')) +nubus_ss.add(files('nubus-virtio-mmio.c')) nubus_ss.add(when: 'CONFIG_Q800', if_true: files('mac-nubus-bridge.c')) system_ss.add_all(when: 'CONFIG_NUBUS', if_true: nubus_ss)