diff options
| -rw-r--r-- | Makefile.objs | 1 | ||||
| -rw-r--r-- | default-configs/hppa-softmmu.mak | 14 | ||||
| -rw-r--r-- | hw/hppa/Makefile.objs | 2 | ||||
| -rw-r--r-- | hw/hppa/dino.c | 518 | ||||
| -rw-r--r-- | hw/hppa/hppa_hardware.h | 40 | ||||
| -rw-r--r-- | hw/hppa/hppa_sys.h | 24 | ||||
| -rw-r--r-- | hw/hppa/machine.c | 247 | ||||
| -rw-r--r-- | hw/hppa/pci.c | 90 | ||||
| -rw-r--r-- | hw/hppa/trace-events | 4 |
9 files changed, 938 insertions, 2 deletions
diff --git a/Makefile.objs b/Makefile.objs index 323ef12384..2efba6d768 100644 --- a/Makefile.objs +++ b/Makefile.objs @@ -156,6 +156,7 @@ trace-events-subdirs += hw/vfio trace-events-subdirs += hw/acpi trace-events-subdirs += hw/arm trace-events-subdirs += hw/alpha +trace-events-subdirs += hw/hppa trace-events-subdirs += hw/xen trace-events-subdirs += hw/ide trace-events-subdirs += ui diff --git a/default-configs/hppa-softmmu.mak b/default-configs/hppa-softmmu.mak new file mode 100644 index 0000000000..013e5f046f --- /dev/null +++ b/default-configs/hppa-softmmu.mak @@ -0,0 +1,14 @@ +include pci.mak +include usb.mak +CONFIG_SERIAL=y +CONFIG_SERIAL_ISA=y +CONFIG_ISA_BUS=y +CONFIG_I8259=y +CONFIG_VIRTIO_PCI=$(CONFIG_PCI) +CONFIG_VIRTIO=y +CONFIG_E1000_PCI=y +CONFIG_IDE_ISA=y +CONFIG_IDE_CMD646=y +# CONFIG_IDE_MMIO=y +CONFIG_VIRTIO_VGA=y +CONFIG_MC146818RTC=y diff --git a/hw/hppa/Makefile.objs b/hw/hppa/Makefile.objs index 46b2ae18de..bef241ed25 100644 --- a/hw/hppa/Makefile.objs +++ b/hw/hppa/Makefile.objs @@ -1 +1 @@ -obj-y += machine.o +obj-y += machine.o pci.o dino.o diff --git a/hw/hppa/dino.c b/hw/hppa/dino.c new file mode 100644 index 0000000000..15aefde09c --- /dev/null +++ b/hw/hppa/dino.c @@ -0,0 +1,518 @@ +/* + * HP-PARISC Dino PCI chipset emulation. + * + * (C) 2017 by Helge Deller <deller@gmx.de> + * + * This work is licensed under the GNU GPL license version 2 or later. + * + * Documentation available at: + * https://parisc.wiki.kernel.org/images-parisc/9/91/Dino_ers.pdf + * https://parisc.wiki.kernel.org/images-parisc/7/70/Dino_3_1_Errata.pdf + */ + +#include "qemu/osdep.h" +#include "qapi/error.h" +#include "cpu.h" +#include "hw/hw.h" +#include "hw/devices.h" +#include "sysemu/sysemu.h" +#include "hw/pci/pci.h" +#include "hw/pci/pci_bus.h" +#include "hppa_sys.h" +#include "exec/address-spaces.h" + + +#define TYPE_DINO_PCI_HOST_BRIDGE "dino-pcihost" + +#define DINO_IAR0 0x004 +#define DINO_IODC 0x008 +#define DINO_IRR0 0x00C /* RO */ +#define DINO_IAR1 0x010 +#define DINO_IRR1 0x014 /* RO */ +#define DINO_IMR 0x018 +#define DINO_IPR 0x01C +#define DINO_TOC_ADDR 0x020 +#define DINO_ICR 0x024 +#define DINO_ILR 0x028 /* RO */ +#define DINO_IO_COMMAND 0x030 /* WO */ +#define DINO_IO_STATUS 0x034 /* RO */ +#define DINO_IO_CONTROL 0x038 +#define DINO_IO_GSC_ERR_RESP 0x040 /* RO */ +#define DINO_IO_ERR_INFO 0x044 /* RO */ +#define DINO_IO_PCI_ERR_RESP 0x048 /* RO */ +#define DINO_IO_FBB_EN 0x05c +#define DINO_IO_ADDR_EN 0x060 +#define DINO_PCI_CONFIG_ADDR 0x064 +#define DINO_PCI_CONFIG_DATA 0x068 +#define DINO_PCI_IO_DATA 0x06c +#define DINO_PCI_MEM_DATA 0x070 /* Dino 3.x only */ +#define DINO_GSC2X_CONFIG 0x7b4 /* RO */ +#define DINO_GMASK 0x800 +#define DINO_PAMR 0x804 +#define DINO_PAPR 0x808 +#define DINO_DAMODE 0x80c +#define DINO_PCICMD 0x810 +#define DINO_PCISTS 0x814 /* R/WC */ +#define DINO_MLTIM 0x81c +#define DINO_BRDG_FEAT 0x820 +#define DINO_PCIROR 0x824 +#define DINO_PCIWOR 0x828 +#define DINO_TLTIM 0x830 + +#define DINO_IRQS 11 /* bits 0-10 are architected */ +#define DINO_IRR_MASK 0x5ff /* only 10 bits are implemented */ +#define DINO_LOCAL_IRQS (DINO_IRQS + 1) +#define DINO_MASK_IRQ(x) (1 << (x)) + +#define PCIINTA 0x001 +#define PCIINTB 0x002 +#define PCIINTC 0x004 +#define PCIINTD 0x008 +#define PCIINTE 0x010 +#define PCIINTF 0x020 +#define GSCEXTINT 0x040 +/* #define xxx 0x080 - bit 7 is "default" */ +/* #define xxx 0x100 - bit 8 not used */ +/* #define xxx 0x200 - bit 9 not used */ +#define RS232INT 0x400 + +#define DINO_MEM_CHUNK_SIZE (8 * 1024 * 1024) /* 8MB */ + +#define DINO_PCI_HOST_BRIDGE(obj) \ + OBJECT_CHECK(DinoState, (obj), TYPE_DINO_PCI_HOST_BRIDGE) + +typedef struct DinoState { + PCIHostState parent_obj; + + /* PCI_CONFIG_ADDR is parent_obj.config_reg, via pci_host_conf_be_ops, + so that we can map PCI_CONFIG_DATA to pci_host_data_be_ops. */ + + uint32_t iar0; + uint32_t iar1; + uint32_t imr; + uint32_t ipr; + uint32_t icr; + uint32_t ilr; + uint32_t io_addr_en; + uint32_t io_control; + + MemoryRegion this_mem; + MemoryRegion pci_mem; + MemoryRegion pci_mem_alias[32]; + + AddressSpace bm_as; + MemoryRegion bm; + MemoryRegion bm_ram_alias; + MemoryRegion bm_pci_alias; + + MemoryRegion cpu0_eir_mem; +} DinoState; + +/* + * Dino can forward memory accesses from the CPU in the range between + * 0xf0800000 and 0xff000000 to the PCI bus. + */ +static void gsc_to_pci_forwarding(DinoState *s) +{ + uint32_t io_addr_en, tmp; + int enabled, i; + + tmp = extract32(s->io_control, 7, 2); + enabled = (tmp == 0x01); + io_addr_en = s->io_addr_en; + + memory_region_transaction_begin(); + for (i = 1; i < 31; i++) { + MemoryRegion *mem = &s->pci_mem_alias[i]; + if (enabled && (io_addr_en & (1U << i))) { + if (!memory_region_is_mapped(mem)) { + uint32_t addr = 0xf0000000 + i * DINO_MEM_CHUNK_SIZE; + memory_region_add_subregion(get_system_memory(), addr, mem); + } + } else if (memory_region_is_mapped(mem)) { + memory_region_del_subregion(get_system_memory(), mem); + } + } + memory_region_transaction_commit(); +} + +static bool dino_chip_mem_valid(void *opaque, hwaddr addr, + unsigned size, bool is_write) +{ + switch (addr) { + case DINO_IAR0: + case DINO_IAR1: + case DINO_IRR0: + case DINO_IRR1: + case DINO_IMR: + case DINO_IPR: + case DINO_ICR: + case DINO_ILR: + case DINO_IO_CONTROL: + case DINO_IO_ADDR_EN: + case DINO_PCI_IO_DATA: + return true; + case DINO_PCI_IO_DATA + 2: + return size <= 2; + case DINO_PCI_IO_DATA + 1: + case DINO_PCI_IO_DATA + 3: + return size == 1; + } + return false; +} + +static MemTxResult dino_chip_read_with_attrs(void *opaque, hwaddr addr, + uint64_t *data, unsigned size, + MemTxAttrs attrs) +{ + DinoState *s = opaque; + MemTxResult ret = MEMTX_OK; + AddressSpace *io; + uint16_t ioaddr; + uint32_t val; + + switch (addr) { + case DINO_PCI_IO_DATA ... DINO_PCI_IO_DATA + 3: + /* Read from PCI IO space. */ + io = &address_space_io; + ioaddr = s->parent_obj.config_reg; + switch (size) { + case 1: + val = address_space_ldub(io, ioaddr, attrs, &ret); + break; + case 2: + val = address_space_lduw_be(io, ioaddr, attrs, &ret); + break; + case 4: + val = address_space_ldl_be(io, ioaddr, attrs, &ret); + break; + default: + g_assert_not_reached(); + } + break; + + case DINO_IO_ADDR_EN: + val = s->io_addr_en; + break; + case DINO_IO_CONTROL: + val = s->io_control; + break; + + case DINO_IAR0: + val = s->iar0; + break; + case DINO_IAR1: + val = s->iar1; + break; + case DINO_IMR: + val = s->imr; + break; + case DINO_ICR: + val = s->icr; + break; + case DINO_IPR: + val = s->ipr; + /* Any read to IPR clears the register. */ + s->ipr = 0; + break; + case DINO_ILR: + val = s->ilr; + break; + case DINO_IRR0: + val = s->ilr & s->imr & ~s->icr; + break; + case DINO_IRR1: + val = s->ilr & s->imr & s->icr; + break; + + default: + /* Controlled by dino_chip_mem_valid above. */ + g_assert_not_reached(); + } + + *data = val; + return ret; +} + +static MemTxResult dino_chip_write_with_attrs(void *opaque, hwaddr addr, + uint64_t val, unsigned size, + MemTxAttrs attrs) +{ + DinoState *s = opaque; + AddressSpace *io; + MemTxResult ret; + uint16_t ioaddr; + + switch (addr) { + case DINO_IO_DATA ... DINO_PCI_IO_DATA + 3: + /* Write into PCI IO space. */ + io = &address_space_io; + ioaddr = s->parent_obj.config_reg; + switch (size) { + case 1: + address_space_stb(io, ioaddr, val, attrs, &ret); + break; + case 2: + address_space_stw_be(io, ioaddr, val, attrs, &ret); + break; + case 4: + address_space_stl_be(io, ioaddr, val, attrs, &ret); + break; + default: + g_assert_not_reached(); + } + return ret; + + case DINO_IO_ADDR_EN: + /* Never allow first (=firmware) and last (=Dino) areas. */ + s->io_addr_en = val & 0x7ffffffe; + gsc_to_pci_forwarding(s); + break; + case DINO_IO_CONTROL: + s->io_control = val; + gsc_to_pci_forwarding(s); + break; + + case DINO_IAR0: + s->iar0 = val; + break; + case DINO_IAR1: + s->iar1 = val; + break; + case DINO_IMR: + s->imr = val; + break; + case DINO_ICR: + s->icr = val; + break; + case DINO_IPR: + /* Any write to IPR clears the register. */ + s->ipr = 0; + break; + + case DINO_ILR: + case DINO_IRR0: + case DINO_IRR1: + /* These registers are read-only. */ + break; + + default: + /* Controlled by dino_chip_mem_valid above. */ + g_assert_not_reached(); + } + return MEMTX_OK; +} + +static const MemoryRegionOps dino_chip_ops = { + .read_with_attrs = dino_chip_read_with_attrs, + .write_with_attrs = dino_chip_write_with_attrs, + .endianness = DEVICE_BIG_ENDIAN, + .valid = { + .min_access_size = 1, + .max_access_size = 4, + .accepts = dino_chip_mem_valid, + }, + .impl = { + .min_access_size = 1, + .max_access_size = 4, + }, +}; + +static const VMStateDescription vmstate_dino = { + .name = "Dino", + .version_id = 1, + .minimum_version_id = 1, + .fields = (VMStateField[]) { + VMSTATE_UINT32(iar0, DinoState), + VMSTATE_UINT32(iar1, DinoState), + VMSTATE_UINT32(imr, DinoState), + VMSTATE_UINT32(ipr, DinoState), + VMSTATE_UINT32(icr, DinoState), + VMSTATE_UINT32(ilr, DinoState), + VMSTATE_UINT32(io_addr_en, DinoState), + VMSTATE_UINT32(io_control, DinoState), + VMSTATE_END_OF_LIST() + } +}; + + +/* Unlike pci_config_data_le_ops, no check of high bit set in config_reg. */ + +static uint64_t dino_config_data_read(void *opaque, hwaddr addr, unsigned len) +{ + PCIHostState *s = opaque; + return pci_data_read(s->bus, s->config_reg | (addr & 3), len); +} + +static void dino_config_data_write(void *opaque, hwaddr addr, + uint64_t val, unsigned len) +{ + PCIHostState *s = opaque; + pci_data_write(s->bus, s->config_reg | (addr & 3), val, len); +} + +static const MemoryRegionOps dino_config_data_ops = { + .read = dino_config_data_read, + .write = dino_config_data_write, + .endianness = DEVICE_LITTLE_ENDIAN, +}; + +static AddressSpace *dino_pcihost_set_iommu(PCIBus *bus, void *opaque, + int devfn) +{ + DinoState *s = opaque; + + return &s->bm_as; +} + +/* + * Dino interrupts are connected as shown on Page 78, Table 23 + * (Little-endian bit numbers) + * 0 PCI INTA + * 1 PCI INTB + * 2 PCI INTC + * 3 PCI INTD + * 4 PCI INTE + * 5 PCI INTF + * 6 GSC External Interrupt + * 7 Bus Error for "less than fatal" mode + * 8 PS2 + * 9 Unused + * 10 RS232 + */ + +static void dino_set_irq(void *opaque, int irq, int level) +{ + DinoState *s = opaque; + uint32_t bit = 1u << irq; + uint32_t old_ilr = s->ilr; + + if (level) { + uint32_t ena = bit & ~old_ilr; + s->ipr |= ena; + s->ilr = old_ilr | bit; + if (ena & s->imr) { + uint32_t iar = (ena & s->icr ? s->iar1 : s->iar0); + stl_be_phys(&address_space_memory, iar & -32, iar & 31); + } + } else { + s->ilr = old_ilr & ~bit; + } +} + +static int dino_pci_map_irq(PCIDevice *d, int irq_num) +{ + int slot = d->devfn >> 3; + int local_irq; + + assert(irq_num >= 0 && irq_num <= 3); + + local_irq = slot & 0x03; + + return local_irq; +} + +static void dino_set_timer_irq(void *opaque, int irq, int level) +{ + /* ??? Not connected. */ +} + +static void dino_set_serial_irq(void *opaque, int irq, int level) +{ + dino_set_irq(opaque, 10, level); +} + +PCIBus *dino_init(MemoryRegion *addr_space, + qemu_irq *p_rtc_irq, qemu_irq *p_ser_irq) +{ + DeviceState *dev; + DinoState *s; + PCIBus *b; + int i; + + dev = qdev_create(NULL, TYPE_DINO_PCI_HOST_BRIDGE); + s = DINO_PCI_HOST_BRIDGE(dev); + + /* Dino PCI access from main memory. */ + memory_region_init_io(&s->this_mem, OBJECT(s), &dino_chip_ops, + s, "dino", 4096); + memory_region_add_subregion(addr_space, DINO_HPA, &s->this_mem); + + /* Dino PCI config. */ + memory_region_init_io(&s->parent_obj.conf_mem, OBJECT(&s->parent_obj), + &pci_host_conf_be_ops, dev, "pci-conf-idx", 4); + memory_region_init_io(&s->parent_obj.data_mem, OBJECT(&s->parent_obj), + &dino_config_data_ops, dev, "pci-conf-data", 4); + memory_region_add_subregion(&s->this_mem, DINO_PCI_CONFIG_ADDR, + &s->parent_obj.conf_mem); + memory_region_add_subregion(&s->this_mem, DINO_CONFIG_DATA, + &s->parent_obj.data_mem); + + /* Dino PCI bus memory. */ + memory_region_init(&s->pci_mem, OBJECT(s), "pci-memory", 1ull << 32); + + b = pci_register_root_bus(dev, "pci", dino_set_irq, dino_pci_map_irq, s, + &s->pci_mem, get_system_io(), + PCI_DEVFN(0, 0), 32, TYPE_PCI_BUS); + s->parent_obj.bus = b; + qdev_init_nofail(dev); + + /* Set up windows into PCI bus memory. */ + for (i = 1; i < 31; i++) { + uint32_t addr = 0xf0000000 + i * DINO_MEM_CHUNK_SIZE; + char *name = g_strdup_printf("PCI Outbound Window %d", i); + memory_region_init_alias(&s->pci_mem_alias[i], OBJECT(s), + name, &s->pci_mem, addr, + DINO_MEM_CHUNK_SIZE); + } + + /* Set up PCI view of memory: Bus master address space. */ + memory_region_init(&s->bm, OBJECT(s), "bm-dino", 1ull << 32); + memory_region_init_alias(&s->bm_ram_alias, OBJECT(s), + "bm-system", addr_space, 0, + 0xf0000000 + DINO_MEM_CHUNK_SIZE); + memory_region_init_alias(&s->bm_pci_alias, OBJECT(s), + "bm-pci", &s->pci_mem, + 0xf0000000 + DINO_MEM_CHUNK_SIZE, + 31 * DINO_MEM_CHUNK_SIZE); + memory_region_add_subregion(&s->bm, 0, + &s->bm_ram_alias); + memory_region_add_subregion(&s->bm, + 0xf0000000 + DINO_MEM_CHUNK_SIZE, + &s->bm_pci_alias); + address_space_init(&s->bm_as, &s->bm, "pci-bm"); + pci_setup_iommu(b, dino_pcihost_set_iommu, s); + + *p_rtc_irq = qemu_allocate_irq(dino_set_timer_irq, s, 0); + *p_ser_irq = qemu_allocate_irq(dino_set_serial_irq, s, 0); + + return b; +} + +static int dino_pcihost_init(SysBusDevice *dev) +{ + return 0; +} + +static void dino_pcihost_class_init(ObjectClass *klass, void *data) +{ + SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); + DeviceClass *dc = DEVICE_CLASS(klass); + + k->init = dino_pcihost_init; + dc->vmsd = &vmstate_dino; +} + +static const TypeInfo dino_pcihost_info = { + .name = TYPE_DINO_PCI_HOST_BRIDGE, + .parent = TYPE_PCI_HOST_BRIDGE, + .instance_size = sizeof(DinoState), + .class_init = dino_pcihost_class_init, +}; + +static void dino_register_types(void) +{ + type_register_static(&dino_pcihost_info); +} + +type_init(dino_register_types) diff --git a/hw/hppa/hppa_hardware.h b/hw/hppa/hppa_hardware.h new file mode 100644 index 0000000000..2c61b1f77c --- /dev/null +++ b/hw/hppa/hppa_hardware.h @@ -0,0 +1,40 @@ +/* HPPA cores and system support chips. */ + +#define FIRMWARE_START 0xf0000000 +#define FIRMWARE_END 0xf0800000 + +#define DEVICE_HPA_LEN 0x00100000 + +#define GSC_HPA 0xffc00000 +#define DINO_HPA 0xfff80000 +#define DINO_UART_HPA 0xfff83000 +#define DINO_UART_BASE 0xfff83800 +#define DINO_SCSI_HPA 0xfff8c000 +#define LASI_HPA 0xffd00000 +#define LASI_UART_HPA 0xffd05000 +#define LASI_SCSI_HPA 0xffd06000 +#define LASI_LAN_HPA 0xffd07000 +#define LASI_LPT_HPA 0xffd02000 +#define LASI_AUDIO_HPA 0xffd04000 +#define LASI_PS2KBD_HPA 0xffd08000 +#define LASI_PS2MOU_HPA 0xffd08100 +#define LASI_GFX_HPA 0xf8000000 +#define CPU_HPA 0xfff10000 +#define MEMORY_HPA 0xfffbf000 + +#define PCI_HPA DINO_HPA /* PCI bus */ +#define IDE_HPA 0xf9000000 /* Boot disc controller */ + +/* offsets to DINO HPA: */ +#define DINO_PCI_ADDR 0x064 +#define DINO_CONFIG_DATA 0x068 +#define DINO_IO_DATA 0x06c + +#define PORT_PCI_CMD (PCI_HPA + DINO_PCI_ADDR) +#define PORT_PCI_DATA (PCI_HPA + DINO_CONFIG_DATA) + +#define PORT_SERIAL1 (DINO_UART_HPA + 0x800) +#define PORT_SERIAL2 (LASI_UART_HPA + 0x800) + +#define HPPA_MAX_CPUS 32 /* max. number of SMP CPUs */ +#define CPU_CLOCK_MHZ 250 /* emulate a 250 MHz CPU */ diff --git a/hw/hppa/hppa_sys.h b/hw/hppa/hppa_sys.h new file mode 100644 index 0000000000..a182d1f34e --- /dev/null +++ b/hw/hppa/hppa_sys.h @@ -0,0 +1,24 @@ +/* HPPA cores and system support chips. */ + +#ifndef HW_HPPA_SYS_H +#define HW_HPPA_SYS_H + +#include "target/hppa/cpu-qom.h" +#include "hw/pci/pci.h" +#include "hw/pci/pci_host.h" +#include "hw/ide.h" +#include "hw/i386/pc.h" +#include "hw/irq.h" + +#include "hw/hppa/hppa_hardware.h" + +PCIBus *dino_init(MemoryRegion *, qemu_irq *, qemu_irq *); + +#define TYPE_DINO_PCI_HOST_BRIDGE "dino-pcihost" + +/* hppa_pci.c. */ +extern const MemoryRegionOps hppa_pci_ignore_ops; +extern const MemoryRegionOps hppa_pci_conf1_ops; +extern const MemoryRegionOps hppa_pci_iack_ops; + +#endif diff --git a/hw/hppa/machine.c b/hw/hppa/machine.c index 79958da18f..afd3867313 100644 --- a/hw/hppa/machine.c +++ b/hw/hppa/machine.c @@ -16,20 +16,265 @@ #include "hw/ide.h" #include "hw/timer/i8254.h" #include "hw/char/serial.h" +#include "hw/hppa/hppa_sys.h" #include "qemu/cutils.h" #include "qapi/error.h" +#define MAX_IDE_BUS 2 + +static ISABus *hppa_isa_bus(void) +{ + ISABus *isa_bus; + qemu_irq *isa_irqs; + MemoryRegion *isa_region; + + isa_region = g_new(MemoryRegion, 1); + memory_region_init_io(isa_region, NULL, &hppa_pci_ignore_ops, + NULL, "isa-io", 0x800); + memory_region_add_subregion(get_system_memory(), IDE_HPA, + isa_region); + + isa_bus = isa_bus_new(NULL, get_system_memory(), isa_region, + &error_abort); + isa_irqs = i8259_init(isa_bus, + /* qemu_allocate_irq(dino_set_isa_irq, s, 0)); */ + NULL); + isa_bus_irqs(isa_bus, isa_irqs); + + return isa_bus; +} + +static uint64_t cpu_hppa_to_phys(void *opaque, uint64_t addr) +{ + addr &= (0x10000000 - 1); + return addr; +} + +static HPPACPU *cpu[HPPA_MAX_CPUS]; +static uint64_t firmware_entry; static void machine_hppa_init(MachineState *machine) { + const char *kernel_filename = machine->kernel_filename; + const char *kernel_cmdline = machine->kernel_cmdline; + const char *initrd_filename = machine->initrd_filename; + PCIBus *pci_bus; + ISABus *isa_bus; + qemu_irq rtc_irq, serial_irq; + char *firmware_filename; + uint64_t firmware_low, firmware_high; + long size; + uint64_t kernel_entry = 0, kernel_low, kernel_high; + MemoryRegion *addr_space = get_system_memory(); + MemoryRegion *rom_region; + MemoryRegion *ram_region; + MemoryRegion *cpu_region; + long i; + + ram_size = machine->ram_size; + + /* Create CPUs. */ + for (i = 0; i < smp_cpus; i++) { + cpu[i] = HPPA_CPU(cpu_create(machine->cpu_type)); + + cpu_region = g_new(MemoryRegion, 1); + memory_region_init_io(cpu_region, OBJECT(cpu[i]), &hppa_io_eir_ops, + cpu[i], g_strdup_printf("cpu%ld-io-eir", i), 4); + memory_region_add_subregion(addr_space, CPU_HPA + i * 0x1000, + cpu_region); + } + + /* Limit main memory. */ + if (ram_size > FIRMWARE_START) { + machine->ram_size = ram_size = FIRMWARE_START; + } + + /* Main memory region. */ + ram_region = g_new(MemoryRegion, 1); + memory_region_allocate_system_memory(ram_region, OBJECT(machine), + "ram", ram_size); + memory_region_add_subregion(addr_space, 0, ram_region); + + /* Init Dino (PCI host bus chip). */ + pci_bus = dino_init(addr_space, &rtc_irq, &serial_irq); + assert(pci_bus); + + /* Create ISA bus. */ + isa_bus = hppa_isa_bus(); + assert(isa_bus); + + /* Realtime clock, used by firmware for PDC_TOD call. */ + mc146818_rtc_init(isa_bus, 2000, rtc_irq); + + /* Serial code setup. */ + if (serial_hds[0]) { + uint32_t addr = DINO_UART_HPA + 0x800; + serial_mm_init(addr_space, addr, 0, serial_irq, + 115200, serial_hds[0], DEVICE_BIG_ENDIAN); + fprintf(stderr, "Serial port created at 0x%x\n", addr); + } + + /* SCSI disk setup. */ + lsi53c895a_create(pci_bus); + + /* Network setup. e1000 is good enough, failing Tulip support. */ + for (i = 0; i < nb_nics; i++) { + pci_nic_init_nofail(&nd_table[i], pci_bus, "e1000", NULL); + } + + /* Load firmware. Given that this is not "real" firmware, + but one explicitly written for the emulation, we might as + well load it directly from an ELF image. */ + firmware_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, + bios_name ? bios_name : + "hppa-firmware.img"); + if (firmware_filename == NULL) { + error_report("no firmware provided"); + exit(1); + } + + size = load_elf(firmware_filename, NULL, + NULL, &firmware_entry, &firmware_low, &firmware_high, + true, EM_PARISC, 0, 0); + + /* Unfortunately, load_elf sign-extends reading elf32. */ + firmware_entry = (target_ureg)firmware_entry; + firmware_low = (target_ureg)firmware_low; + firmware_high = (target_ureg)firmware_high; + + if (size < 0) { + error_report("could not load firmware '%s'", firmware_filename); + exit(1); + } + fprintf(stderr, "Firmware loaded at 0x%08" PRIx64 "-0x%08" PRIx64 + ", entry at 0x%08" PRIx64 ".\n", + firmware_low, firmware_high, firmware_entry); + if (firmware_low < ram_size || firmware_high >= FIRMWARE_END) { + error_report("Firmware overlaps with memory or IO space"); + exit(1); + } + g_free(firmware_filename); + + rom_region = g_new(MemoryRegion, 1); + memory_region_allocate_system_memory(rom_region, OBJECT(machine), + "firmware", + (FIRMWARE_END - FIRMWARE_START)); + memory_region_add_subregion(addr_space, FIRMWARE_START, rom_region); + + /* Load kernel */ + if (kernel_filename) { + fprintf(stderr, "LOADING kernel '%s'\n", kernel_filename); + size = load_elf(kernel_filename, &cpu_hppa_to_phys, + NULL, &kernel_entry, &kernel_low, &kernel_high, + true, EM_PARISC, 0, 0); + + /* Unfortunately, load_elf sign-extends reading elf32. */ + kernel_entry = (target_ureg) cpu_hppa_to_phys(NULL, kernel_entry); + kernel_low = (target_ureg)kernel_low; + kernel_high = (target_ureg)kernel_high; + + if (size < 0) { + error_report("could not load kernel '%s'", kernel_filename); + exit(1); + } + + fprintf(stderr, "Kernel loaded at 0x%08" PRIx64 "-0x%08" PRIx64 + ", entry at 0x%08" PRIx64 ", size %ld kB.\n", + kernel_low, kernel_high, kernel_entry, size / 1024); + + if (kernel_cmdline) { + cpu[0]->env.gr[24] = 0x4000; + pstrcpy_targphys("cmdline", cpu[0]->env.gr[24], + TARGET_PAGE_SIZE, kernel_cmdline); + } + + if (initrd_filename) { + ram_addr_t initrd_base; + long initrd_size; + + initrd_size = get_image_size(initrd_filename); + if (initrd_size < 0) { + error_report("could not load initial ram disk '%s'", + initrd_filename); + exit(1); + } + + /* Load the initrd image high in memory. + Mirror the algorithm used by palo: + (1) Due to sign-extension problems and PDC, + put the initrd no higher than 1G. + (2) Reserve 64k for stack. */ + initrd_base = MIN(ram_size, 1024 * 1024 * 1024); + initrd_base = initrd_base - 64 * 1024; + initrd_base = (initrd_base - initrd_size) & TARGET_PAGE_MASK; + + if (initrd_base < kernel_high) { + error_report("kernel and initial ram disk too large!"); + exit(1); + } + + load_image_targphys(initrd_filename, initrd_base, initrd_size); + cpu[0]->env.gr[23] = initrd_base; + cpu[0]->env.gr[22] = initrd_base + initrd_size; + } + } + + if (!kernel_entry) { + /* When booting via firmware, tell firmware if we want interactive + * mode (kernel_entry=1), and to boot from CD (gr[24]='d') + * or hard disc * (gr[24]='c'). + */ + kernel_entry = boot_menu ? 1 : 0; + cpu[0]->env.gr[24] = machine->boot_order[0]; + } + + /* We jump to the firmware entry routine and pass the + * various parameters in registers. After firmware initialization, + * firmware will start the Linux kernel with ramdisk and cmdline. + */ + cpu[0]->env.gr[26] = ram_size; + cpu[0]->env.gr[25] = kernel_entry; + + /* tell firmware how many SMP CPUs to present in inventory table */ + cpu[0]->env.gr[21] = smp_cpus; } +static void hppa_machine_reset(void) +{ + int i; + + qemu_devices_reset(); + + /* Start all CPUs at the firmware entry point. + * Monarch CPU will initialize firmware, secondary CPUs + * will enter a small idle look and wait for rendevouz. */ + for (i = 0; i < smp_cpus; i++) { + cpu_set_pc(CPU(cpu[i]), firmware_entry); + cpu[i]->env.gr[5] = CPU_HPA + i * 0x1000; + } + + /* already initialized by machine_hppa_init()? */ + if (cpu[0]->env.gr[26] == ram_size) { + return; + } + + cpu[0]->env.gr[26] = ram_size; + cpu[0]->env.gr[25] = 0; /* no firmware boot menu */ + cpu[0]->env.gr[24] = 'c'; + /* gr22/gr23 unused, no initrd while reboot. */ + cpu[0]->env.gr[21] = smp_cpus; +} + + static void machine_hppa_machine_init(MachineClass *mc) { mc->desc = "HPPA generic machine"; + mc->default_cpu_type = TYPE_HPPA_CPU; mc->init = machine_hppa_init; + mc->reset = hppa_machine_reset; mc->block_default_type = IF_SCSI; - mc->max_cpus = 1; + mc->max_cpus = HPPA_MAX_CPUS; + mc->default_cpus = 1; mc->is_default = 1; mc->default_ram_size = 512 * M_BYTE; mc->default_boot_order = "cd"; diff --git a/hw/hppa/pci.c b/hw/hppa/pci.c new file mode 100644 index 0000000000..766420254e --- /dev/null +++ b/hw/hppa/pci.c @@ -0,0 +1,90 @@ +/* + * QEMU HP-PARISC PCI support functions. + * + */ + +#include "qemu/osdep.h" +#include "qemu-common.h" +#include "hppa_sys.h" +#include "qemu/log.h" +#include "sysemu/sysemu.h" +#include "trace.h" + + +/* Fallback for unassigned PCI I/O operations. Avoids MCHK. */ + +static uint64_t ignore_read(void *opaque, hwaddr addr, unsigned size) +{ + return 0; +} + +static void ignore_write(void *opaque, hwaddr addr, uint64_t v, unsigned size) +{ +} + +const MemoryRegionOps hppa_pci_ignore_ops = { + .read = ignore_read, + .write = ignore_write, + .endianness = DEVICE_BIG_ENDIAN, + .valid = { + .min_access_size = 1, + .max_access_size = 8, + }, + .impl = { + .min_access_size = 1, + .max_access_size = 8, + }, +}; + + +/* PCI config space reads/writes, to byte-word addressable memory. */ +static uint64_t bw_conf1_read(void *opaque, hwaddr addr, + unsigned size) +{ + PCIBus *b = opaque; + return pci_data_read(b, addr, size); +} + +static void bw_conf1_write(void *opaque, hwaddr addr, + uint64_t val, unsigned size) +{ + PCIBus *b = opaque; + pci_data_write(b, addr, val, size); +} + +const MemoryRegionOps hppa_pci_conf1_ops = { + .read = bw_conf1_read, + .write = bw_conf1_write, + .endianness = DEVICE_BIG_ENDIAN, + .impl = { + .min_access_size = 1, + .max_access_size = 4, + }, +}; + +/* PCI/EISA Interrupt Acknowledge Cycle. */ + +static uint64_t iack_read(void *opaque, hwaddr addr, unsigned size) +{ + return pic_read_irq(isa_pic); +} + +static void special_write(void *opaque, hwaddr addr, + uint64_t val, unsigned size) +{ + trace_hppa_pci_iack_write(); +} + +const MemoryRegionOps hppa_pci_iack_ops = { + .read = iack_read, + .write = special_write, + .endianness = DEVICE_BIG_ENDIAN, + .valid = { + .min_access_size = 4, + .max_access_size = 4, + }, + .impl = { + .min_access_size = 4, + .max_access_size = 4, + }, +}; diff --git a/hw/hppa/trace-events b/hw/hppa/trace-events new file mode 100644 index 0000000000..14c67937e1 --- /dev/null +++ b/hw/hppa/trace-events @@ -0,0 +1,4 @@ +# See docs/devel/tracing.txt for syntax documentation. + +# hw/hppa/pci.c +hppa_pci_iack_write(void) "" |