From patchwork Fri Nov 2 15:22:53 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Cave-Ayland X-Patchwork-Id: 992396 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=2001:4830:134:3::11; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=ilande.co.uk Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 42mmGG0V0rzB4Ws for ; Sat, 3 Nov 2018 02:29:42 +1100 (AEDT) Received: from localhost ([::1]:52176 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gIbOF-00049G-J1 for incoming@patchwork.ozlabs.org; Fri, 02 Nov 2018 11:29:39 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:35806) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gIbIV-0005Qx-T4 for qemu-devel@nongnu.org; Fri, 02 Nov 2018 11:23:46 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gIbIT-0000gU-My for qemu-devel@nongnu.org; Fri, 02 Nov 2018 11:23:43 -0400 Received: from chuckie.co.uk ([82.165.15.123]:49882 helo=s16892447.onlinehome-server.info) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gIbIS-0000cO-Uy; Fri, 02 Nov 2018 11:23:41 -0400 Received: from host86-186-67-255.range86-186.btcentralplus.com ([86.186.67.255] helo=kentang.home) by s16892447.onlinehome-server.info with esmtpsa (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.76) (envelope-from ) id 1gIbIV-0008OB-0u; Fri, 02 Nov 2018 15:23:45 +0000 From: Mark Cave-Ayland To: qemu-devel@nongnu.org, kwolf@redhat.com, famz@redhat.com, qemu-block@nongnu.org, jasowang@redhat.com, dgilbert@redhat.com, mreitz@redhat.com, hpoussin@reactos.org, kraxel@redhat.com, pbonzini@redhat.com, aurelien@aurel32.net, laurent@vivier.eu Date: Fri, 2 Nov 2018 15:22:53 +0000 Message-Id: <20181102152257.20637-7-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20181102152257.20637-1-mark.cave-ayland@ilande.co.uk> References: <20181102152257.20637-1-mark.cave-ayland@ilande.co.uk> X-SA-Exim-Connect-IP: 86.186.67.255 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk X-SA-Exim-Version: 4.2.1 (built Sun, 08 Jan 2012 02:45:44 +0000) X-SA-Exim-Scanned: Yes (on s16892447.onlinehome-server.info) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 82.165.15.123 Subject: [Qemu-devel] [PATCH v6 06/10] hw/m68k: add Nubus support X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Laurent Vivier Co-developed-by: Mark Cave-Ayland Signed-off-by: Mark Cave-Ayland Signed-off-by: Laurent Vivier Reviewed-by: Thomas Huth --- hw/Makefile.objs | 1 + hw/nubus/Makefile.objs | 4 + hw/nubus/mac-nubus-bridge.c | 45 ++++++++ hw/nubus/nubus-bridge.c | 34 ++++++ hw/nubus/nubus-bus.c | 111 +++++++++++++++++++ hw/nubus/nubus-device.c | 215 ++++++++++++++++++++++++++++++++++++ include/hw/nubus/mac-nubus-bridge.h | 24 ++++ include/hw/nubus/nubus.h | 69 ++++++++++++ 8 files changed, 503 insertions(+) create mode 100644 hw/nubus/Makefile.objs create mode 100644 hw/nubus/mac-nubus-bridge.c create mode 100644 hw/nubus/nubus-bridge.c create mode 100644 hw/nubus/nubus-bus.c create mode 100644 hw/nubus/nubus-device.c create mode 100644 include/hw/nubus/mac-nubus-bridge.h create mode 100644 include/hw/nubus/nubus.h diff --git a/hw/Makefile.objs b/hw/Makefile.objs index 39d882af6f..92dc338759 100644 --- a/hw/Makefile.objs +++ b/hw/Makefile.objs @@ -36,6 +36,7 @@ devices-dirs-$(CONFIG_SOFTMMU) += watchdog/ devices-dirs-$(CONFIG_SOFTMMU) += xen/ devices-dirs-$(CONFIG_MEM_DEVICE) += mem/ devices-dirs-$(CONFIG_SOFTMMU) += smbios/ +devices-dirs-$(CONFIG_NUBUS) += nubus/ devices-dirs-y += core/ common-obj-y += $(devices-dirs-y) obj-y += $(devices-dirs-y) diff --git a/hw/nubus/Makefile.objs b/hw/nubus/Makefile.objs new file mode 100644 index 0000000000..ebb050a4ad --- /dev/null +++ b/hw/nubus/Makefile.objs @@ -0,0 +1,4 @@ +common-obj-y += nubus-device.o +common-obj-y += nubus-bus.o +common-obj-y += nubus-bridge.o +common-obj-$(CONFIG_MAC) += mac-nubus-bridge.o diff --git a/hw/nubus/mac-nubus-bridge.c b/hw/nubus/mac-nubus-bridge.c new file mode 100644 index 0000000000..7c329300b8 --- /dev/null +++ b/hw/nubus/mac-nubus-bridge.c @@ -0,0 +1,45 @@ +/* + * Copyright (c) 2013-2018 Laurent Vivier + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + * + */ + +#include "qemu/osdep.h" +#include "hw/sysbus.h" +#include "hw/nubus/mac-nubus-bridge.h" + + +static void mac_nubus_bridge_init(Object *obj) +{ + MacNubusState *s = MAC_NUBUS_BRIDGE(obj); + SysBusDevice *sbd = SYS_BUS_DEVICE(obj); + + s->bus = NUBUS_BUS(qbus_create(TYPE_NUBUS_BUS, DEVICE(s), NULL)); + + sysbus_init_mmio(sbd, &s->bus->super_slot_io); + sysbus_init_mmio(sbd, &s->bus->slot_io); +} + +static void mac_nubus_bridge_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + + dc->desc = "Nubus bridge"; +} + +static const TypeInfo mac_nubus_bridge_info = { + .name = TYPE_MAC_NUBUS_BRIDGE, + .parent = TYPE_NUBUS_BRIDGE, + .instance_init = mac_nubus_bridge_init, + .instance_size = sizeof(MacNubusState), + .class_init = mac_nubus_bridge_class_init, +}; + +static void mac_nubus_bridge_register_types(void) +{ + type_register_static(&mac_nubus_bridge_info); +} + +type_init(mac_nubus_bridge_register_types) diff --git a/hw/nubus/nubus-bridge.c b/hw/nubus/nubus-bridge.c new file mode 100644 index 0000000000..cd8c6a91eb --- /dev/null +++ b/hw/nubus/nubus-bridge.c @@ -0,0 +1,34 @@ +/* + * QEMU Macintosh Nubus + * + * Copyright (c) 2013-2018 Laurent Vivier + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + * + */ + +#include "qemu/osdep.h" +#include "hw/sysbus.h" +#include "hw/nubus/nubus.h" + +static void nubus_bridge_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + + dc->fw_name = "nubus"; +} + +static const TypeInfo nubus_bridge_info = { + .name = TYPE_NUBUS_BRIDGE, + .parent = TYPE_SYS_BUS_DEVICE, + .instance_size = sizeof(SysBusDevice), + .class_init = nubus_bridge_class_init, +}; + +static void nubus_register_types(void) +{ + type_register_static(&nubus_bridge_info); +} + +type_init(nubus_register_types) diff --git a/hw/nubus/nubus-bus.c b/hw/nubus/nubus-bus.c new file mode 100644 index 0000000000..942a6d5342 --- /dev/null +++ b/hw/nubus/nubus-bus.c @@ -0,0 +1,111 @@ +/* + * QEMU Macintosh Nubus + * + * Copyright (c) 2013-2018 Laurent Vivier + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + * + */ + +#include "qemu/osdep.h" +#include "hw/nubus/nubus.h" +#include "hw/sysbus.h" +#include "qapi/error.h" + + +static NubusBus *nubus_find(void) +{ + /* Returns NULL unless there is exactly one nubus device */ + return NUBUS_BUS(object_resolve_path_type("", TYPE_NUBUS_BUS, NULL)); +} + +static void nubus_slot_write(void *opaque, hwaddr addr, uint64_t val, + unsigned int size) +{ + /* read only */ +} + + +static uint64_t nubus_slot_read(void *opaque, hwaddr addr, + unsigned int size) +{ + return 0; +} + +static const MemoryRegionOps nubus_slot_ops = { + .read = nubus_slot_read, + .write = nubus_slot_write, + .endianness = DEVICE_BIG_ENDIAN, + .valid = { + .min_access_size = 1, + .max_access_size = 1, + }, +}; + +static void nubus_super_slot_write(void *opaque, hwaddr addr, uint64_t val, + unsigned int size) +{ + /* read only */ +} + +static uint64_t nubus_super_slot_read(void *opaque, hwaddr addr, + unsigned int size) +{ + return 0; +} + +static const MemoryRegionOps nubus_super_slot_ops = { + .read = nubus_super_slot_read, + .write = nubus_super_slot_write, + .endianness = DEVICE_BIG_ENDIAN, + .valid = { + .min_access_size = 1, + .max_access_size = 1, + }, +}; + +static void nubus_realize(BusState *bus, Error **errp) +{ + if (!nubus_find()) { + error_setg(errp, "at most one %s device is permitted", TYPE_NUBUS_BUS); + return; + } +} + +static void nubus_init(Object *obj) +{ + NubusBus *nubus = NUBUS_BUS(obj); + + memory_region_init_io(&nubus->super_slot_io, obj, &nubus_super_slot_ops, + nubus, "nubus-super-slots", + NUBUS_SUPER_SLOT_NB * NUBUS_SUPER_SLOT_SIZE); + + memory_region_init_io(&nubus->slot_io, obj, &nubus_slot_ops, + nubus, "nubus-slots", + NUBUS_SLOT_NB * NUBUS_SLOT_SIZE); + + nubus->current_slot = NUBUS_FIRST_SLOT; +} + +static void nubus_class_init(ObjectClass *oc, void *data) +{ + BusClass *bc = BUS_CLASS(oc); + + bc->realize = nubus_realize; +} + +static const TypeInfo nubus_bus_info = { + .name = TYPE_NUBUS_BUS, + .parent = TYPE_BUS, + .instance_size = sizeof(NubusBus), + .instance_init = nubus_init, + .class_init = nubus_class_init, +}; + +static void nubus_register_types(void) +{ + type_register_static(&nubus_bus_info); +} + +type_init(nubus_register_types) diff --git a/hw/nubus/nubus-device.c b/hw/nubus/nubus-device.c new file mode 100644 index 0000000000..01ccad9e8e --- /dev/null +++ b/hw/nubus/nubus-device.c @@ -0,0 +1,215 @@ +/* + * QEMU Macintosh Nubus + * + * Copyright (c) 2013-2018 Laurent Vivier + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + * + */ + +#include "qemu/osdep.h" +#include "hw/nubus/nubus.h" +#include "qapi/error.h" + + +/* The Format Block Structure */ + +#define FBLOCK_DIRECTORY_OFFSET 0 +#define FBLOCK_LENGTH 4 +#define FBLOCK_CRC 8 +#define FBLOCK_REVISION_LEVEL 12 +#define FBLOCK_FORMAT 13 +#define FBLOCK_TEST_PATTERN 14 +#define FBLOCK_RESERVED 18 +#define FBLOCK_BYTE_LANES 19 + +#define FBLOCK_SIZE 20 +#define FBLOCK_PATTERN_VAL 0x5a932bc7 + +static uint64_t nubus_fblock_read(void *opaque, hwaddr addr, unsigned int size) +{ + NubusDevice *dev = opaque; + uint64_t val; + +#define BYTE(v, b) (((v) >> (24 - 8 * (b))) & 0xff) + switch (addr) { + case FBLOCK_BYTE_LANES: + val = dev->byte_lanes; + val |= (val ^ 0xf) << 4; + break; + case FBLOCK_RESERVED: + val = 0x00; + break; + case FBLOCK_TEST_PATTERN...FBLOCK_TEST_PATTERN + 3: + val = BYTE(FBLOCK_PATTERN_VAL, addr - FBLOCK_TEST_PATTERN); + break; + case FBLOCK_FORMAT: + val = dev->rom_format; + break; + case FBLOCK_REVISION_LEVEL: + val = dev->rom_rev; + break; + case FBLOCK_CRC...FBLOCK_CRC + 3: + val = BYTE(dev->rom_crc, addr - FBLOCK_CRC); + break; + case FBLOCK_LENGTH...FBLOCK_LENGTH + 3: + val = BYTE(dev->rom_length, addr - FBLOCK_LENGTH); + break; + case FBLOCK_DIRECTORY_OFFSET...FBLOCK_DIRECTORY_OFFSET + 3: + val = BYTE(dev->directory_offset, addr - FBLOCK_DIRECTORY_OFFSET); + break; + default: + val = 0; + break; + } + return val; +} + +static void nubus_fblock_write(void *opaque, hwaddr addr, uint64_t val, + unsigned int size) +{ + /* read only */ +} + +static const MemoryRegionOps nubus_format_block_ops = { + .read = nubus_fblock_read, + .write = nubus_fblock_write, + .endianness = DEVICE_BIG_ENDIAN, + .valid = { + .min_access_size = 1, + .max_access_size = 1, + } +}; + +static void nubus_register_format_block(NubusDevice *dev) +{ + char *fblock_name; + + fblock_name = g_strdup_printf("nubus-slot-%d-format-block", + dev->slot_nb); + + hwaddr fblock_offset = memory_region_size(&dev->slot_mem) - FBLOCK_SIZE; + memory_region_init_io(&dev->fblock_io, NULL, &nubus_format_block_ops, + dev, fblock_name, FBLOCK_SIZE); + memory_region_add_subregion(&dev->slot_mem, fblock_offset, + &dev->fblock_io); + + g_free(fblock_name); +} + +static void mac_nubus_rom_write(void *opaque, hwaddr addr, uint64_t val, + unsigned int size) +{ + /* read only */ +} + +static uint64_t mac_nubus_rom_read(void *opaque, hwaddr addr, + unsigned int size) +{ + NubusDevice *dev = opaque; + + return dev->rom[addr]; +} + +static const MemoryRegionOps mac_nubus_rom_ops = { + .read = mac_nubus_rom_read, + .write = mac_nubus_rom_write, + .endianness = DEVICE_BIG_ENDIAN, + .valid = { + .min_access_size = 1, + .max_access_size = 1, + }, +}; + + +void nubus_register_rom(NubusDevice *dev, const uint8_t *rom, uint32_t size, + int revision, int format, uint8_t byte_lanes) +{ + hwaddr rom_offset; + char *rom_name; + + /* FIXME : really compute CRC */ + dev->rom_length = 0; + dev->rom_crc = 0; + + dev->rom_rev = revision; + dev->rom_format = format; + + dev->byte_lanes = byte_lanes; + dev->directory_offset = -size; + + /* ROM */ + + dev->rom = rom; + rom_name = g_strdup_printf("nubus-slot-%d-rom", dev->slot_nb); + memory_region_init_io(&dev->rom_io, NULL, &mac_nubus_rom_ops, + dev, rom_name, size); + memory_region_set_readonly(&dev->rom_io, true); + + rom_offset = memory_region_size(&dev->slot_mem) - FBLOCK_SIZE + + dev->directory_offset; + memory_region_add_subregion(&dev->slot_mem, rom_offset, &dev->rom_io); + + g_free(rom_name); +} + +static void nubus_device_realize(DeviceState *dev, Error **errp) +{ + NubusBus *nubus = NUBUS_BUS(qdev_get_parent_bus(DEVICE(dev))); + NubusDevice *nd = NUBUS_DEVICE(dev); + char *name; + hwaddr slot_offset; + + if (nubus->current_slot < NUBUS_FIRST_SLOT || + nubus->current_slot > NUBUS_LAST_SLOT) { + error_setg(errp, "Cannot register nubus card, not enough slots"); + return; + } + + nd->slot_nb = nubus->current_slot++; + name = g_strdup_printf("nubus-slot-%d", nd->slot_nb); + + if (nd->slot_nb < NUBUS_FIRST_SLOT) { + /* Super */ + slot_offset = (nd->slot_nb - 6) * NUBUS_SUPER_SLOT_SIZE; + + memory_region_init(&nd->slot_mem, OBJECT(dev), name, + NUBUS_SUPER_SLOT_SIZE); + memory_region_add_subregion(&nubus->super_slot_io, slot_offset, + &nd->slot_mem); + } else { + /* Normal */ + slot_offset = nd->slot_nb * NUBUS_SLOT_SIZE; + + memory_region_init(&nd->slot_mem, OBJECT(dev), name, NUBUS_SLOT_SIZE); + memory_region_add_subregion(&nubus->slot_io, slot_offset, + &nd->slot_mem); + } + + g_free(name); + nubus_register_format_block(nd); +} + +static void nubus_device_class_init(ObjectClass *oc, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(oc); + + dc->realize = nubus_device_realize; + dc->bus_type = TYPE_NUBUS_BUS; +} + +static const TypeInfo nubus_device_type_info = { + .name = TYPE_NUBUS_DEVICE, + .parent = TYPE_DEVICE, + .abstract = true, + .instance_size = sizeof(NubusDevice), + .class_init = nubus_device_class_init, +}; + +static void nubus_register_types(void) +{ + type_register_static(&nubus_device_type_info); +} + +type_init(nubus_register_types) diff --git a/include/hw/nubus/mac-nubus-bridge.h b/include/hw/nubus/mac-nubus-bridge.h new file mode 100644 index 0000000000..ce9c789d99 --- /dev/null +++ b/include/hw/nubus/mac-nubus-bridge.h @@ -0,0 +1,24 @@ +/* + * Copyright (c) 2013-2018 Laurent Vivier + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + * + */ + +#ifndef HW_NUBUS_MAC_H +#define HW_NUBUS_MAC_H + +#include "hw/nubus/nubus.h" + +#define TYPE_MAC_NUBUS_BRIDGE "mac-nubus-bridge" +#define MAC_NUBUS_BRIDGE(obj) OBJECT_CHECK(MacNubusState, (obj), \ + TYPE_MAC_NUBUS_BRIDGE) + +typedef struct MacNubusState { + SysBusDevice sysbus_dev; + + NubusBus *bus; +} MacNubusState; + +#endif diff --git a/include/hw/nubus/nubus.h b/include/hw/nubus/nubus.h new file mode 100644 index 0000000000..096bafb322 --- /dev/null +++ b/include/hw/nubus/nubus.h @@ -0,0 +1,69 @@ +/* + * Copyright (c) 2013-2018 Laurent Vivier + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + * + */ + +#ifndef HW_NUBUS_NUBUS_H +#define HW_NUBUS_NUBUS_H + +#include "hw/qdev.h" +#include "exec/address-spaces.h" + +#define NUBUS_SUPER_SLOT_SIZE 0x10000000U +#define NUBUS_SUPER_SLOT_NB 0x9 + +#define NUBUS_SLOT_SIZE 0x01000000 +#define NUBUS_SLOT_NB 0xF + +#define NUBUS_FIRST_SLOT 0x9 +#define NUBUS_LAST_SLOT 0xF + +#define TYPE_NUBUS_DEVICE "nubus-device" +#define NUBUS_DEVICE(obj) \ + OBJECT_CHECK(NubusDevice, (obj), TYPE_NUBUS_DEVICE) + +#define TYPE_NUBUS_BUS "nubus-bus" +#define NUBUS_BUS(obj) OBJECT_CHECK(NubusBus, (obj), TYPE_NUBUS_BUS) + +#define TYPE_NUBUS_BRIDGE "nubus-bridge" +#define NUBUS_BRIDGE(obj) OBJECT_CHECK(NubusBridge, (obj), TYPE_NUBUS_BRIDGE) + +typedef struct NubusBus { + BusState qbus; + + MemoryRegion super_slot_io; + MemoryRegion slot_io; + + int current_slot; +} NubusBus; + +typedef struct NubusDevice { + DeviceState qdev; + + int slot_nb; + MemoryRegion slot_mem; + + /* Format Block */ + + MemoryRegion fblock_io; + + uint32_t rom_length; + uint32_t rom_crc; + uint8_t rom_rev; + uint8_t rom_format; + uint8_t byte_lanes; + int32_t directory_offset; + + /* ROM */ + + MemoryRegion rom_io; + const uint8_t *rom; +} NubusDevice; + +void nubus_register_rom(NubusDevice *dev, const uint8_t *rom, uint32_t size, + int revision, int format, uint8_t byte_lanes); + +#endif