Commit 04e7ca8d authored by Laurent Vivier's avatar Laurent Vivier
Browse files

hw/m68k: define Macintosh Quadra 800 



If you want to test the machine, it doesn't yet boot a MacROM, but you can
boot a linux kernel from the command line.

You can install your own disk using debian-installer with:

    ./qemu-system-m68k \
    -M q800 \
    -serial none -serial mon:stdio \
    -m 1000M -drive file=m68k.qcow2,format=qcow2 \
    -net nic,model=dp83932,addr=09:00:07:12:34:57 \
    -append "console=ttyS0 vga=off" \
    -kernel vmlinux-4.15.0-2-m68k \
    -initrd initrd.gz \
    -drive file=debian-9.0-m68k-NETINST-1.iso \
    -drive file=m68k.qcow2,format=qcow2 \
    -nographic

If you use a graphic adapter instead of "-nographic", you can use "-g"
to set the size of the display (I use "-g 1600x800x24").

Tested-by: default avatarPhilippe Mathieu-Daudé <philmd@redhat.com>
Co-developed-by: default avatarMark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: default avatarMark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: default avatarLaurent Vivier <laurent@vivier.eu>
Message-Id: <20191026164546.30020-11-laurent@vivier.eu>
parent c701ec62

MAINTAINERS

+2 −0
Original line number Diff line number Diff line
@@ -920,10 +920,12 @@ F: include/hw/m68k/next-cube.h 
q800

M: Laurent Vivier <laurent@vivier.eu>

S: Maintained

F: hw/m68k/q800.c

F: hw/misc/mac_via.c

F: hw/nubus/*

F: hw/display/macfb.c

F: hw/block/swim.c

F: hw/m68k/bootinfo.h

F: include/hw/misc/mac_via.h

F: include/hw/nubus/*

F: include/hw/display/macfb.h

hw/m68k/Kconfig

+3 −0
Original line number Diff line number Diff line
@@ -19,3 +19,6 @@ config Q800 
    select NUBUS

    select MACFB

    select SWIM

    select ESCC

    select ESP

    select DP8393X

hw/m68k/Makefile.objs

+1 −0
Original line number Diff line number Diff line 
obj-$(CONFIG_AN5206) += an5206.o mcf5206.o

obj-$(CONFIG_MCF5208) += mcf5208.o mcf_intc.o

obj-$(CONFIG_NEXTCUBE) += next-kbd.o next-cube.o

obj-$(CONFIG_Q800) += q800.o

hw/m68k/bootinfo.h

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/*

 * SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note

 *

 * Bootinfo tags from linux bootinfo.h and bootinfo-mac.h:

 * This is an easily parsable and extendable structure containing all

 * information to be passed from the bootstrap to the kernel

 *

 * This structure is copied right after the kernel by the bootstrap

 * routine.

 */



#ifndef HW_M68K_BOOTINFO_H

#define HW_M68K_BOOTINFO_H

struct bi_record {

    uint16_t tag;        /* tag ID */

    uint16_t size;       /* size of record */

    uint32_t data[0];    /* data */

};



/* machine independent tags */



#define BI_LAST         0x0000 /* last record */

#define BI_MACHTYPE     0x0001 /* machine type (u_long) */

#define BI_CPUTYPE      0x0002 /* cpu type (u_long) */

#define BI_FPUTYPE      0x0003 /* fpu type (u_long) */

#define BI_MMUTYPE      0x0004 /* mmu type (u_long) */

#define BI_MEMCHUNK     0x0005 /* memory chunk address and size */

                               /* (struct mem_info) */

#define BI_RAMDISK      0x0006 /* ramdisk address and size */

                               /* (struct mem_info) */

#define BI_COMMAND_LINE 0x0007 /* kernel command line parameters */

                               /* (string) */



/*  Macintosh-specific tags (all u_long) */



#define BI_MAC_MODEL    0x8000  /* Mac Gestalt ID (model type) */

#define BI_MAC_VADDR    0x8001  /* Mac video base address */

#define BI_MAC_VDEPTH   0x8002  /* Mac video depth */

#define BI_MAC_VROW     0x8003  /* Mac video rowbytes */

#define BI_MAC_VDIM     0x8004  /* Mac video dimensions */

#define BI_MAC_VLOGICAL 0x8005  /* Mac video logical base */

#define BI_MAC_SCCBASE  0x8006  /* Mac SCC base address */

#define BI_MAC_BTIME    0x8007  /* Mac boot time */

#define BI_MAC_GMTBIAS  0x8008  /* Mac GMT timezone offset */

#define BI_MAC_MEMSIZE  0x8009  /* Mac RAM size (sanity check) */

#define BI_MAC_CPUID    0x800a  /* Mac CPU type (sanity check) */

#define BI_MAC_ROMBASE  0x800b  /* Mac system ROM base address */



/*  Macintosh hardware profile data */



#define BI_MAC_VIA1BASE 0x8010  /* Mac VIA1 base address (always present) */

#define BI_MAC_VIA2BASE 0x8011  /* Mac VIA2 base address (type varies) */

#define BI_MAC_VIA2TYPE 0x8012  /* Mac VIA2 type (VIA, RBV, OSS) */

#define BI_MAC_ADBTYPE  0x8013  /* Mac ADB interface type */

#define BI_MAC_ASCBASE  0x8014  /* Mac Apple Sound Chip base address */

#define BI_MAC_SCSI5380 0x8015  /* Mac NCR 5380 SCSI (base address, multi) */

#define BI_MAC_SCSIDMA  0x8016  /* Mac SCSI DMA (base address) */

#define BI_MAC_SCSI5396 0x8017  /* Mac NCR 53C96 SCSI (base address, multi) */

#define BI_MAC_IDETYPE  0x8018  /* Mac IDE interface type */

#define BI_MAC_IDEBASE  0x8019  /* Mac IDE interface base address */

#define BI_MAC_NUBUS    0x801a  /* Mac Nubus type (none, regular, pseudo) */

#define BI_MAC_SLOTMASK 0x801b  /* Mac Nubus slots present */

#define BI_MAC_SCCTYPE  0x801c  /* Mac SCC serial type (normal, IOP) */

#define BI_MAC_ETHTYPE  0x801d  /* Mac builtin ethernet type (Sonic, MACE */

#define BI_MAC_ETHBASE  0x801e  /* Mac builtin ethernet base address */

#define BI_MAC_PMU      0x801f  /* Mac power management / poweroff hardware */

#define BI_MAC_IOP_SWIM 0x8020  /* Mac SWIM floppy IOP */

#define BI_MAC_IOP_ADB  0x8021  /* Mac ADB IOP */



#define BOOTINFO0(as, base, id) \

    do { \

        stw_phys(as, base, id); \

        base += 2; \

        stw_phys(as, base, sizeof(struct bi_record)); \

        base += 2; \

    } while (0)



#define BOOTINFO1(as, base, id, value) \

    do { \

        stw_phys(as, base, id); \

        base += 2; \

        stw_phys(as, base, sizeof(struct bi_record) + 4); \

        base += 2; \

        stl_phys(as, base, value); \

        base += 4; \

    } while (0)



#define BOOTINFO2(as, base, id, value1, value2) \

    do { \

        stw_phys(as, base, id); \

        base += 2; \

        stw_phys(as, base, sizeof(struct bi_record) + 8); \

        base += 2; \

        stl_phys(as, base, value1); \

        base += 4; \

        stl_phys(as, base, value2); \

        base += 4; \

    } while (0)



#define BOOTINFOSTR(as, base, id, string) \

    do { \

        int i; \

        stw_phys(as, base, id); \

        base += 2; \

        stw_phys(as, base, \

                 (sizeof(struct bi_record) + strlen(string) + 2) & ~1); \

        base += 2; \

        for (i = 0; string[i]; i++) { \

            stb_phys(as, base++, string[i]); \

        } \

        stb_phys(as, base++, 0); \

        base = (parameters_base + 1) & ~1; \

    } while (0)

#endif

hw/m68k/q800.c

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Original line number Diff line number Diff line 
/*

 * QEMU Motorla 680x0 Macintosh hardware System Emulator

 *

 * Permission is hereby granted, free of charge, to any person obtaining a copy

 * of this software and associated documentation files (the "Software"), to deal

 * in the Software without restriction, including without limitation the rights

 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

 * copies of the Software, and to permit persons to whom the Software is

 * furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL

 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

 * THE SOFTWARE.

 */



#include "qemu/osdep.h"

#include "qemu/units.h"

#include "qemu-common.h"

#include "sysemu/sysemu.h"

#include "cpu.h"

#include "hw/hw.h"

#include "hw/boards.h"

#include "hw/irq.h"

#include "elf.h"

#include "hw/loader.h"

#include "ui/console.h"

#include "exec/address-spaces.h"

#include "hw/char/escc.h"

#include "hw/sysbus.h"

#include "hw/scsi/esp.h"

#include "bootinfo.h"

#include "hw/misc/mac_via.h"

#include "hw/input/adb.h"

#include "hw/nubus/mac-nubus-bridge.h"

#include "hw/display/macfb.h"

#include "hw/block/swim.h"

#include "net/net.h"

#include "qapi/error.h"

#include "sysemu/qtest.h"

#include "sysemu/runstate.h"

#include "sysemu/reset.h"



#define MACROM_ADDR     0x40000000

#define MACROM_SIZE     0x00100000



#define MACROM_FILENAME "MacROM.bin"



#define Q800_MACHINE_ID 35

#define Q800_CPU_ID (1 << 2)

#define Q800_FPU_ID (1 << 2)

#define Q800_MMU_ID (1 << 2)



#define MACH_MAC        3

#define Q800_MAC_CPU_ID 2



#define VIA_BASE              0x50f00000

#define SONIC_PROM_BASE       0x50f08000

#define SONIC_BASE            0x50f0a000

#define SCC_BASE              0x50f0c020

#define ESP_BASE              0x50f10000

#define ESP_PDMA              0x50f10100

#define ASC_BASE              0x50F14000

#define SWIM_BASE             0x50F1E000

#define NUBUS_SUPER_SLOT_BASE 0x60000000

#define NUBUS_SLOT_BASE       0xf0000000



/*

 * the video base, whereas it a Nubus address,

 * is needed by the kernel to have early display and

 * thus provided by the bootloader

 */

#define VIDEO_BASE            0xf9001000



#define MAC_CLOCK  3686418



/*

 * The GLUE (General Logic Unit) is an Apple custom integrated circuit chip

 * that performs a variety of functions (RAM management, clock generation, ...).

 * The GLUE chip receives interrupt requests from various devices,

 * assign priority to each, and asserts one or more interrupt line to the

 * CPU.

 */



typedef struct {

    M68kCPU *cpu;

    uint8_t ipr;

} GLUEState;



static void GLUE_set_irq(void *opaque, int irq, int level)

{

    GLUEState *s = opaque;

    int i;



    if (level) {

        s->ipr |= 1 << irq;

    } else {

        s->ipr &= ~(1 << irq);

    }



    for (i = 7; i >= 0; i--) {

        if ((s->ipr >> i) & 1) {

            m68k_set_irq_level(s->cpu, i + 1, i + 25);

            return;

        }

    }

    m68k_set_irq_level(s->cpu, 0, 0);

}



static void main_cpu_reset(void *opaque)

{

    M68kCPU *cpu = opaque;

    CPUState *cs = CPU(cpu);



    cpu_reset(cs);

    cpu->env.aregs[7] = ldl_phys(cs->as, 0);

    cpu->env.pc = ldl_phys(cs->as, 4);

}



static void q800_init(MachineState *machine)

{

    M68kCPU *cpu = NULL;

    int linux_boot;

    int32_t kernel_size;

    uint64_t elf_entry;

    char *filename;

    int bios_size;

    ram_addr_t initrd_base;

    int32_t initrd_size;

    MemoryRegion *rom;

    MemoryRegion *ram;

    ram_addr_t ram_size = machine->ram_size;

    const char *kernel_filename = machine->kernel_filename;

    const char *initrd_filename = machine->initrd_filename;

    const char *kernel_cmdline = machine->kernel_cmdline;

    hwaddr parameters_base;

    CPUState *cs;

    DeviceState *dev;

    DeviceState *via_dev;

    SysBusESPState *sysbus_esp;

    ESPState *esp;

    SysBusDevice *sysbus;

    BusState *adb_bus;

    NubusBus *nubus;

    GLUEState *irq;

    qemu_irq *pic;



    linux_boot = (kernel_filename != NULL);



    if (ram_size > 1 * GiB) {

        error_report("Too much memory for this machine: %" PRId64 " MiB, "

                     "maximum 1024 MiB", ram_size / MiB);

        exit(1);

    }



    /* init CPUs */

    cpu = M68K_CPU(cpu_create(machine->cpu_type));

    qemu_register_reset(main_cpu_reset, cpu);



    ram = g_malloc(sizeof(*ram));

    memory_region_init_ram(ram, NULL, "m68k_mac.ram", ram_size, &error_abort);

    memory_region_add_subregion(get_system_memory(), 0, ram);



    /* IRQ Glue */



    irq = g_new0(GLUEState, 1);

    irq->cpu = cpu;

    pic = qemu_allocate_irqs(GLUE_set_irq, irq, 8);



    /* VIA */



    via_dev = qdev_create(NULL, TYPE_MAC_VIA);

    qdev_init_nofail(via_dev);

    sysbus = SYS_BUS_DEVICE(via_dev);

    sysbus_mmio_map(sysbus, 0, VIA_BASE);

    qdev_connect_gpio_out_named(DEVICE(sysbus), "irq", 0, pic[0]);

    qdev_connect_gpio_out_named(DEVICE(sysbus), "irq", 1, pic[1]);





    adb_bus = qdev_get_child_bus(via_dev, "adb.0");

    dev = qdev_create(adb_bus, TYPE_ADB_KEYBOARD);

    qdev_init_nofail(dev);

    dev = qdev_create(adb_bus, TYPE_ADB_MOUSE);

    qdev_init_nofail(dev);



    /* MACSONIC */



    if (nb_nics > 1) {

        error_report("q800 can only have one ethernet interface");

        exit(1);

    }



    qemu_check_nic_model(&nd_table[0], "dp83932");



    /*

     * MacSonic driver needs an Apple MAC address

     * Valid prefix are:

     * 00:05:02 Apple

     * 00:80:19 Dayna Communications, Inc.

     * 00:A0:40 Apple

     * 08:00:07 Apple

     * (Q800 use the last one)

     */

    nd_table[0].macaddr.a[0] = 0x08;

    nd_table[0].macaddr.a[1] = 0x00;

    nd_table[0].macaddr.a[2] = 0x07;



    dev = qdev_create(NULL, "dp8393x");

    qdev_set_nic_properties(dev, &nd_table[0]);

    qdev_prop_set_uint8(dev, "it_shift", 2);

    qdev_prop_set_bit(dev, "big_endian", true);

    qdev_prop_set_ptr(dev, "dma_mr", get_system_memory());

    qdev_init_nofail(dev);

    sysbus = SYS_BUS_DEVICE(dev);

    sysbus_mmio_map(sysbus, 0, SONIC_BASE);

    sysbus_mmio_map(sysbus, 1, SONIC_PROM_BASE);

    sysbus_connect_irq(sysbus, 0, pic[2]);



    /* SCC */



    dev = qdev_create(NULL, TYPE_ESCC);

    qdev_prop_set_uint32(dev, "disabled", 0);

    qdev_prop_set_uint32(dev, "frequency", MAC_CLOCK);

    qdev_prop_set_uint32(dev, "it_shift", 1);

    qdev_prop_set_bit(dev, "bit_swap", true);

    qdev_prop_set_chr(dev, "chrA", serial_hd(0));

    qdev_prop_set_chr(dev, "chrB", serial_hd(1));

    qdev_prop_set_uint32(dev, "chnBtype", 0);

    qdev_prop_set_uint32(dev, "chnAtype", 0);

    qdev_init_nofail(dev);

    sysbus = SYS_BUS_DEVICE(dev);

    sysbus_connect_irq(sysbus, 0, pic[3]);

    sysbus_connect_irq(sysbus, 1, pic[3]);

    sysbus_mmio_map(sysbus, 0, SCC_BASE);



    /* SCSI */



    dev = qdev_create(NULL, TYPE_ESP);

    sysbus_esp = ESP_STATE(dev);

    esp = &sysbus_esp->esp;

    esp->dma_memory_read = NULL;

    esp->dma_memory_write = NULL;

    esp->dma_opaque = NULL;

    sysbus_esp->it_shift = 4;

    esp->dma_enabled = 1;

    qdev_init_nofail(dev);



    sysbus = SYS_BUS_DEVICE(dev);

    sysbus_connect_irq(sysbus, 0, qdev_get_gpio_in_named(via_dev,

                                                         "via2-irq",

                                                         VIA2_IRQ_SCSI_BIT));

    sysbus_connect_irq(sysbus, 1,

                       qdev_get_gpio_in_named(via_dev, "via2-irq",

                                              VIA2_IRQ_SCSI_DATA_BIT));

    sysbus_mmio_map(sysbus, 0, ESP_BASE);

    sysbus_mmio_map(sysbus, 1, ESP_PDMA);



    scsi_bus_legacy_handle_cmdline(&esp->bus);



    /* SWIM floppy controller */



    dev = qdev_create(NULL, TYPE_SWIM);

    qdev_init_nofail(dev);

    sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, SWIM_BASE);



    /* NuBus */



    dev = qdev_create(NULL, TYPE_MAC_NUBUS_BRIDGE);

    qdev_init_nofail(dev);

    sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, NUBUS_SUPER_SLOT_BASE);

    sysbus_mmio_map(SYS_BUS_DEVICE(dev), 1, NUBUS_SLOT_BASE);



    nubus = MAC_NUBUS_BRIDGE(dev)->bus;



    /* framebuffer in nubus slot #9 */



    dev = qdev_create(BUS(nubus), TYPE_NUBUS_MACFB);

    qdev_prop_set_uint32(dev, "width", graphic_width);

    qdev_prop_set_uint32(dev, "height", graphic_height);

    qdev_prop_set_uint8(dev, "depth", graphic_depth);

    qdev_init_nofail(dev);



    cs = CPU(cpu);

    if (linux_boot) {

        uint64_t high;

        kernel_size = load_elf(kernel_filename, NULL, NULL, NULL,

                               &elf_entry, NULL, &high, 1,

                               EM_68K, 0, 0);

        if (kernel_size < 0) {

            error_report("could not load kernel '%s'", kernel_filename);

            exit(1);

        }

        stl_phys(cs->as, 4, elf_entry); /* reset initial PC */

        parameters_base = (high + 1) & ~1;



        BOOTINFO1(cs->as, parameters_base, BI_MACHTYPE, MACH_MAC);

        BOOTINFO1(cs->as, parameters_base, BI_FPUTYPE, Q800_FPU_ID);

        BOOTINFO1(cs->as, parameters_base, BI_MMUTYPE, Q800_MMU_ID);

        BOOTINFO1(cs->as, parameters_base, BI_CPUTYPE, Q800_CPU_ID);

        BOOTINFO1(cs->as, parameters_base, BI_MAC_CPUID, Q800_MAC_CPU_ID);

        BOOTINFO1(cs->as, parameters_base, BI_MAC_MODEL, Q800_MACHINE_ID);

        BOOTINFO1(cs->as, parameters_base,

                  BI_MAC_MEMSIZE, ram_size >> 20); /* in MB */

        BOOTINFO2(cs->as, parameters_base, BI_MEMCHUNK, 0, ram_size);

        BOOTINFO1(cs->as, parameters_base, BI_MAC_VADDR, VIDEO_BASE);

        BOOTINFO1(cs->as, parameters_base, BI_MAC_VDEPTH, graphic_depth);

        BOOTINFO1(cs->as, parameters_base, BI_MAC_VDIM,

                  (graphic_height << 16) | graphic_width);

        BOOTINFO1(cs->as, parameters_base, BI_MAC_VROW,

                  (graphic_width * graphic_depth + 7) / 8);

        BOOTINFO1(cs->as, parameters_base, BI_MAC_SCCBASE, SCC_BASE);



        if (kernel_cmdline) {

            BOOTINFOSTR(cs->as, parameters_base, BI_COMMAND_LINE,

                        kernel_cmdline);

        }



        /* load initrd */

        if (initrd_filename) {

            initrd_size = get_image_size(initrd_filename);

            if (initrd_size < 0) {

                error_report("could not load initial ram disk '%s'",

                             initrd_filename);

                exit(1);

            }



            initrd_base = (ram_size - initrd_size) & TARGET_PAGE_MASK;

            load_image_targphys(initrd_filename, initrd_base,

                                ram_size - initrd_base);

            BOOTINFO2(cs->as, parameters_base, BI_RAMDISK, initrd_base,

                      initrd_size);

        } else {

            initrd_base = 0;

            initrd_size = 0;

        }

        BOOTINFO0(cs->as, parameters_base, BI_LAST);

    } else {

        uint8_t *ptr;

        /* allocate and load BIOS */

        rom = g_malloc(sizeof(*rom));

        memory_region_init_ram(rom, NULL, "m68k_mac.rom", MACROM_SIZE,

                               &error_abort);

        if (bios_name == NULL) {

            bios_name = MACROM_FILENAME;

        }

        filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);

        memory_region_set_readonly(rom, true);

        memory_region_add_subregion(get_system_memory(), MACROM_ADDR, rom);



        /* Load MacROM binary */

        if (filename) {

            bios_size = load_image_targphys(filename, MACROM_ADDR, MACROM_SIZE);

            g_free(filename);

        } else {

            bios_size = -1;

        }



        /* Remove qtest_enabled() check once firmware files are in the tree */

        if (!qtest_enabled()) {

            if (bios_size < 0 || bios_size > MACROM_SIZE) {

                error_report("could not load MacROM '%s'", bios_name);

                exit(1);

            }



            ptr = rom_ptr(MACROM_ADDR, MACROM_SIZE);

            stl_phys(cs->as, 0, ldl_p(ptr));    /* reset initial SP */

            stl_phys(cs->as, 4,

                     MACROM_ADDR + ldl_p(ptr + 4)); /* reset initial PC */

        }

    }

}



static void q800_machine_class_init(ObjectClass *oc, void *data)

{

    MachineClass *mc = MACHINE_CLASS(oc);

    mc->desc = "Macintosh Quadra 800";

    mc->init = q800_init;

    mc->default_cpu_type = M68K_CPU_TYPE_NAME("m68040");

    mc->max_cpus = 1;

    mc->is_default = 0;

    mc->block_default_type = IF_SCSI;

}



static const TypeInfo q800_machine_typeinfo = {

    .name       = MACHINE_TYPE_NAME("q800"),

    .parent     = TYPE_MACHINE,

    .class_init = q800_machine_class_init,

};



static void q800_machine_register_types(void)

{

    type_register_static(&q800_machine_typeinfo);

}



type_init(q800_machine_register_types)