--- /dev/null
+/*
+ * QEMU MIPS Jazz support
+ *
+ * Copyright (c) 2007-2008 Hervé Poussineau
+ *
+ * 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 "hw/hw.h"
+#include "hw/mips/mips.h"
+#include "hw/mips/cpudevs.h"
+#include "hw/i386/pc.h"
+#include "hw/char/serial.h"
+#include "hw/isa/isa.h"
+#include "hw/block/fdc.h"
+#include "sysemu/sysemu.h"
+#include "sysemu/arch_init.h"
+#include "hw/boards.h"
+#include "net/net.h"
+#include "hw/scsi/esp.h"
+#include "hw/mips/bios.h"
+#include "hw/loader.h"
+#include "hw/timer/mc146818rtc.h"
+#include "hw/timer/i8254.h"
+#include "hw/audio/pcspk.h"
+#include "sysemu/block-backend.h"
+#include "hw/sysbus.h"
+#include "exec/address-spaces.h"
+#include "sysemu/qtest.h"
+#include "qemu/error-report.h"
+
+enum jazz_model_e
+{
+ JAZZ_MAGNUM,
+ JAZZ_PICA61,
+};
+
+static void main_cpu_reset(void *opaque)
+{
+ MIPSCPU *cpu = opaque;
+
+ cpu_reset(CPU(cpu));
+}
+
+static uint64_t rtc_read(void *opaque, hwaddr addr, unsigned size)
+{
+ uint8_t val;
+ address_space_read(&address_space_memory, 0x90000071,
+ MEMTXATTRS_UNSPECIFIED, &val, 1);
+ return val;
+}
+
+static void rtc_write(void *opaque, hwaddr addr,
+ uint64_t val, unsigned size)
+{
+ uint8_t buf = val & 0xff;
+ address_space_write(&address_space_memory, 0x90000071,
+ MEMTXATTRS_UNSPECIFIED, &buf, 1);
+}
+
+static const MemoryRegionOps rtc_ops = {
+ .read = rtc_read,
+ .write = rtc_write,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+};
+
+static uint64_t dma_dummy_read(void *opaque, hwaddr addr,
+ unsigned size)
+{
+ /* Nothing to do. That is only to ensure that
+ * the current DMA acknowledge cycle is completed. */
+ return 0xff;
+}
+
+static void dma_dummy_write(void *opaque, hwaddr addr,
+ uint64_t val, unsigned size)
+{
+ /* Nothing to do. That is only to ensure that
+ * the current DMA acknowledge cycle is completed. */
+}
+
+static const MemoryRegionOps dma_dummy_ops = {
+ .read = dma_dummy_read,
+ .write = dma_dummy_write,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+};
+
+#define MAGNUM_BIOS_SIZE_MAX 0x7e000
+#define MAGNUM_BIOS_SIZE (BIOS_SIZE < MAGNUM_BIOS_SIZE_MAX ? BIOS_SIZE : MAGNUM_BIOS_SIZE_MAX)
+
+static void cpu_request_exit(void *opaque, int irq, int level)
+{
+ CPUState *cpu = current_cpu;
+
+ if (cpu && level) {
+ cpu_exit(cpu);
+ }
+}
+
+static CPUUnassignedAccess real_do_unassigned_access;
+static void mips_jazz_do_unassigned_access(CPUState *cpu, hwaddr addr,
+ bool is_write, bool is_exec,
+ int opaque, unsigned size)
+{
+ if (!is_exec) {
+ /* ignore invalid access (ie do not raise exception) */
+ return;
+ }
+ (*real_do_unassigned_access)(cpu, addr, is_write, is_exec, opaque, size);
+}
+
+static void mips_jazz_init(MachineState *machine,
+ enum jazz_model_e jazz_model)
+{
+ MemoryRegion *address_space = get_system_memory();
+ const char *cpu_model = machine->cpu_model;
+ char *filename;
+ int bios_size, n;
+ MIPSCPU *cpu;
+ CPUClass *cc;
+ CPUMIPSState *env;
+ qemu_irq *i8259;
+ rc4030_dma *dmas;
+ MemoryRegion *rc4030_dma_mr;
+ MemoryRegion *isa_mem = g_new(MemoryRegion, 1);
+ MemoryRegion *isa_io = g_new(MemoryRegion, 1);
+ MemoryRegion *rtc = g_new(MemoryRegion, 1);
+ MemoryRegion *i8042 = g_new(MemoryRegion, 1);
+ MemoryRegion *dma_dummy = g_new(MemoryRegion, 1);
+ NICInfo *nd;
+ DeviceState *dev, *rc4030;
+ SysBusDevice *sysbus;
+ ISABus *isa_bus;
+ ISADevice *pit;
+ DriveInfo *fds[MAX_FD];
+ qemu_irq esp_reset, dma_enable;
+ qemu_irq *cpu_exit_irq;
+ MemoryRegion *ram = g_new(MemoryRegion, 1);
+ MemoryRegion *bios = g_new(MemoryRegion, 1);
+ MemoryRegion *bios2 = g_new(MemoryRegion, 1);
+
+ /* init CPUs */
+ if (cpu_model == NULL) {
+ cpu_model = "R4000";
+ }
+ cpu = cpu_mips_init(cpu_model);
+ if (cpu == NULL) {
+ fprintf(stderr, "Unable to find CPU definition\n");
+ exit(1);
+ }
+ env = &cpu->env;
+ qemu_register_reset(main_cpu_reset, cpu);
+
+ /* Chipset returns 0 in invalid reads and do not raise data exceptions.
+ * However, we can't simply add a global memory region to catch
+ * everything, as memory core directly call unassigned_mem_read/write
+ * on some invalid accesses, which call do_unassigned_access on the
+ * CPU, which raise an exception.
+ * Handle that case by hijacking the do_unassigned_access method on
+ * the CPU, and do not raise exceptions for data access. */
+ cc = CPU_GET_CLASS(cpu);
+ real_do_unassigned_access = cc->do_unassigned_access;
+ cc->do_unassigned_access = mips_jazz_do_unassigned_access;
+
+ /* allocate RAM */
+ memory_region_allocate_system_memory(ram, NULL, "mips_jazz.ram",
+ machine->ram_size);
+ memory_region_add_subregion(address_space, 0, ram);
+
+ memory_region_init_ram(bios, NULL, "mips_jazz.bios", MAGNUM_BIOS_SIZE,
+ &error_abort);
+ vmstate_register_ram_global(bios);
+ memory_region_set_readonly(bios, true);
+ memory_region_init_alias(bios2, NULL, "mips_jazz.bios", bios,
+ 0, MAGNUM_BIOS_SIZE);
+ memory_region_add_subregion(address_space, 0x1fc00000LL, bios);
+ memory_region_add_subregion(address_space, 0xfff00000LL, bios2);
+
+ /* load the BIOS image. */
+ if (bios_name == NULL)
+ bios_name = BIOS_FILENAME;
+ filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
+ if (filename) {
+ bios_size = load_image_targphys(filename, 0xfff00000LL,
+ MAGNUM_BIOS_SIZE);
+ g_free(filename);
+ } else {
+ bios_size = -1;
+ }
+ if ((bios_size < 0 || bios_size > MAGNUM_BIOS_SIZE) && !qtest_enabled()) {
+ error_report("Could not load MIPS bios '%s'", bios_name);
+ exit(1);
+ }
+
+ /* Init CPU internal devices */
+ cpu_mips_irq_init_cpu(env);
+ cpu_mips_clock_init(env);
+
+ /* Chipset */
+ rc4030 = rc4030_init(&dmas, &rc4030_dma_mr);
+ sysbus = SYS_BUS_DEVICE(rc4030);
+ sysbus_connect_irq(sysbus, 0, env->irq[6]);
+ sysbus_connect_irq(sysbus, 1, env->irq[3]);
+ memory_region_add_subregion(address_space, 0x80000000,
+ sysbus_mmio_get_region(sysbus, 0));
+ memory_region_add_subregion(address_space, 0xf0000000,
+ sysbus_mmio_get_region(sysbus, 1));
+ memory_region_init_io(dma_dummy, NULL, &dma_dummy_ops, NULL, "dummy_dma", 0x1000);
+ memory_region_add_subregion(address_space, 0x8000d000, dma_dummy);
+
+ /* ISA bus: IO space at 0x90000000, mem space at 0x91000000 */
+ memory_region_init(isa_io, NULL, "isa-io", 0x00010000);
+ memory_region_init(isa_mem, NULL, "isa-mem", 0x01000000);
+ memory_region_add_subregion(address_space, 0x90000000, isa_io);
+ memory_region_add_subregion(address_space, 0x91000000, isa_mem);
+ isa_bus = isa_bus_new(NULL, isa_mem, isa_io);
+
+ /* ISA devices */
+ i8259 = i8259_init(isa_bus, env->irq[4]);
+ isa_bus_irqs(isa_bus, i8259);
+ cpu_exit_irq = qemu_allocate_irqs(cpu_request_exit, NULL, 1);
+ DMA_init(0, cpu_exit_irq);
+ pit = pit_init(isa_bus, 0x40, 0, NULL);
+ pcspk_init(isa_bus, pit);
+
+ /* Video card */
+ switch (jazz_model) {
+ case JAZZ_MAGNUM:
+ dev = qdev_create(NULL, "sysbus-g364");
+ qdev_init_nofail(dev);
+ sysbus = SYS_BUS_DEVICE(dev);
+ sysbus_mmio_map(sysbus, 0, 0x60080000);
+ sysbus_mmio_map(sysbus, 1, 0x40000000);
+ sysbus_connect_irq(sysbus, 0, qdev_get_gpio_in(rc4030, 3));
+ {
+ /* Simple ROM, so user doesn't have to provide one */
+ MemoryRegion *rom_mr = g_new(MemoryRegion, 1);
+ memory_region_init_ram(rom_mr, NULL, "g364fb.rom", 0x80000,
+ &error_abort);
+ vmstate_register_ram_global(rom_mr);
+ memory_region_set_readonly(rom_mr, true);
+ uint8_t *rom = memory_region_get_ram_ptr(rom_mr);
+ memory_region_add_subregion(address_space, 0x60000000, rom_mr);
+ rom[0] = 0x10; /* Mips G364 */
+ }
+ break;
+ case JAZZ_PICA61:
+ isa_vga_mm_init(0x40000000, 0x60000000, 0, get_system_memory());
+ break;
+ default:
+ break;
+ }
+
+ /* Network controller */
+ for (n = 0; n < nb_nics; n++) {
+ nd = &nd_table[n];
+ if (!nd->model)
+ nd->model = g_strdup("dp83932");
+ if (strcmp(nd->model, "dp83932") == 0) {
+ qemu_check_nic_model(nd, "dp83932");
+
+ dev = qdev_create(NULL, "dp8393x");
+ qdev_set_nic_properties(dev, nd);
+ qdev_prop_set_uint8(dev, "it_shift", 2);
+ qdev_prop_set_ptr(dev, "dma_mr", rc4030_dma_mr);
+ qdev_init_nofail(dev);
+ sysbus = SYS_BUS_DEVICE(dev);
+ sysbus_mmio_map(sysbus, 0, 0x80001000);
+ sysbus_mmio_map(sysbus, 1, 0x8000b000);
+ sysbus_connect_irq(sysbus, 0, qdev_get_gpio_in(rc4030, 4));
+ break;
+ } else if (is_help_option(nd->model)) {
+ fprintf(stderr, "qemu: Supported NICs: dp83932\n");
+ exit(1);
+ } else {
+ fprintf(stderr, "qemu: Unsupported NIC: %s\n", nd->model);
+ exit(1);
+ }
+ }
+
+ /* SCSI adapter */
+ esp_init(0x80002000, 0,
+ rc4030_dma_read, rc4030_dma_write, dmas[0],
+ qdev_get_gpio_in(rc4030, 5), &esp_reset, &dma_enable);
+
+ /* Floppy */
+ if (drive_get_max_bus(IF_FLOPPY) >= MAX_FD) {
+ fprintf(stderr, "qemu: too many floppy drives\n");
+ exit(1);
+ }
+ for (n = 0; n < MAX_FD; n++) {
+ fds[n] = drive_get(IF_FLOPPY, 0, n);
+ }
+ fdctrl_init_sysbus(qdev_get_gpio_in(rc4030, 1), 0, 0x80003000, fds);
+
+ /* Real time clock */
+ rtc_init(isa_bus, 1980, NULL);
+ memory_region_init_io(rtc, NULL, &rtc_ops, NULL, "rtc", 0x1000);
+ memory_region_add_subregion(address_space, 0x80004000, rtc);
+
+ /* Keyboard (i8042) */
+ i8042_mm_init(qdev_get_gpio_in(rc4030, 6), qdev_get_gpio_in(rc4030, 7),
+ i8042, 0x1000, 0x1);
+ memory_region_add_subregion(address_space, 0x80005000, i8042);
+
+ /* Serial ports */
+ if (serial_hds[0]) {
+ serial_mm_init(address_space, 0x80006000, 0,
+ qdev_get_gpio_in(rc4030, 8), 8000000/16,
+ serial_hds[0], DEVICE_NATIVE_ENDIAN);
+ }
+ if (serial_hds[1]) {
+ serial_mm_init(address_space, 0x80007000, 0,
+ qdev_get_gpio_in(rc4030, 9), 8000000/16,
+ serial_hds[1], DEVICE_NATIVE_ENDIAN);
+ }
+
+ /* Parallel port */
+ if (parallel_hds[0])
+ parallel_mm_init(address_space, 0x80008000, 0,
+ qdev_get_gpio_in(rc4030, 0), parallel_hds[0]);
+
+ /* FIXME: missing Jazz sound at 0x8000c000, rc4030[2] */
+
+ /* NVRAM */
+ dev = qdev_create(NULL, "ds1225y");
+ qdev_init_nofail(dev);
+ sysbus = SYS_BUS_DEVICE(dev);
+ sysbus_mmio_map(sysbus, 0, 0x80009000);
+
+ /* LED indicator */
+ sysbus_create_simple("jazz-led", 0x8000f000, NULL);
+}
+
+static
+void mips_magnum_init(MachineState *machine)
+{
+ mips_jazz_init(machine, JAZZ_MAGNUM);
+}
+
+static
+void mips_pica61_init(MachineState *machine)
+{
+ mips_jazz_init(machine, JAZZ_PICA61);
+}
+
+static QEMUMachine mips_magnum_machine = {
+ .name = "magnum",
+ .desc = "MIPS Magnum",
+ .init = mips_magnum_init,
+ .block_default_type = IF_SCSI,
+};
+
+static QEMUMachine mips_pica61_machine = {
+ .name = "pica61",
+ .desc = "Acer Pica 61",
+ .init = mips_pica61_init,
+ .block_default_type = IF_SCSI,
+};
+
+static void mips_jazz_machine_init(void)
+{
+ qemu_register_machine(&mips_magnum_machine);
+ qemu_register_machine(&mips_pica61_machine);
+}
+
+machine_init(mips_jazz_machine_init);
Code Review / kvmfornfv.git / blobdiff