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Merge tag 'pull-pa-20231106' of https://gitlab.com/rth7680/qemu into …
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…staging

target/hppa: Implement PA2.0 instructions
hw/hppa: Map astro chip 64-bit I/O mem
hw/hppa: Turn on 64-bit cpu for C3700

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* tag 'pull-pa-20231106' of https://gitlab.com/rth7680/qemu: (85 commits)
  hw/hppa: Allow C3700 with 64-bit and B160L with 32-bit CPU only
  hw/hppa: Turn on 64-bit CPU for C3700 machine
  hw/pci-host/astro: Trigger CPU irq on CPU HPA in high memory
  hw/pci-host/astro: Map Astro chip into 64-bit I/O memory region
  target/hppa: Improve interrupt logging
  target/hppa: Update IIAOQ, IIASQ for pa2.0
  target/hppa: Create raise_exception_with_ior
  target/hppa: Add unwind_breg to CPUHPPAState
  target/hppa: Clear upper bits in mtctl for pa1.x
  target/hppa: Avoid async_safe_run_on_cpu on uniprocessor system
  target/hppa: Add pa2.0 cpu local tlb flushes
  target/hppa: Implement pa2.0 data prefetch instructions
  linux-user/hppa: Drop EXCP_DUMP from handled exceptions
  hw/hppa: Translate phys addresses for the cpu
  include/hw/elf: Remove truncating signed casts
  target/hppa: Return zero for r0 from load_gpr
  target/hppa: Precompute zero into DisasContext
  target/hppa: Fix interruption based on default PSW
  target/hppa: Implement PERMH
  target/hppa: Implement MIXH, MIXW
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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@stefanhaRH
stefanhaRH committed Nov 7, 2023
2 parents 8aba939 + 3d1611b commit bb541a7
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Showing 22 changed files with 2,577 additions and 1,443 deletions.
1 change: 1 addition & 0 deletions configs/targets/hppa-linux-user.mak
View file
Original file line number Diff line number Diff line change
@@ -1,4 +1,5 @@
TARGET_ARCH=hppa
TARGET_ABI32=y
TARGET_SYSTBL_ABI=common,32
TARGET_SYSTBL=syscall.tbl
TARGET_BIG_ENDIAN=y
152 changes: 99 additions & 53 deletions hw/hppa/machine.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -87,7 +87,7 @@ static const MemoryRegionOps hppa_pci_ignore_ops = {
},
};

static ISABus *hppa_isa_bus(void)
static ISABus *hppa_isa_bus(hwaddr addr)
{
ISABus *isa_bus;
qemu_irq *isa_irqs;
Expand All @@ -96,8 +96,7 @@ static ISABus *hppa_isa_bus(void)
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);
memory_region_add_subregion(get_system_memory(), addr, isa_region);

isa_bus = isa_bus_new(NULL, get_system_memory(), isa_region,
&error_abort);
Expand Down Expand Up @@ -163,13 +162,24 @@ static const MemoryRegionOps hppa_io_helper_ops = {
},
};

typedef uint64_t TranslateFn(void *opaque, uint64_t addr);

static uint64_t cpu_hppa_to_phys(void *opaque, uint64_t addr)
static uint64_t linux_kernel_virt_to_phys(void *opaque, uint64_t addr)
{
addr &= (0x10000000 - 1);
return addr;
}

static uint64_t translate_pa10(void *dummy, uint64_t addr)
{
return (uint32_t)addr;
}

static uint64_t translate_pa20(void *dummy, uint64_t addr)
{
return hppa_abs_to_phys_pa2_w0(addr);
}

static HPPACPU *cpu[HPPA_MAX_CPUS];
static uint64_t firmware_entry;

Expand All @@ -179,15 +189,17 @@ static void fw_cfg_boot_set(void *opaque, const char *boot_device,
fw_cfg_modify_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]);
}

static FWCfgState *create_fw_cfg(MachineState *ms, PCIBus *pci_bus)
static FWCfgState *create_fw_cfg(MachineState *ms, PCIBus *pci_bus,
hwaddr addr)
{
FWCfgState *fw_cfg;
uint64_t val;
const char qemu_version[] = QEMU_VERSION;
MachineClass *mc = MACHINE_GET_CLASS(ms);
int btlb_entries = HPPA_BTLB_ENTRIES(&cpu[0]->env);
int len;

fw_cfg = fw_cfg_init_mem(FW_CFG_IO_BASE, FW_CFG_IO_BASE + 4);
fw_cfg = fw_cfg_init_mem(addr, addr + 4);
fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, ms->smp.cpus);
fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, HPPA_MAX_CPUS);
fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, ms->ram_size);
Expand All @@ -196,11 +208,11 @@ static FWCfgState *create_fw_cfg(MachineState *ms, PCIBus *pci_bus)
fw_cfg_add_file(fw_cfg, "/etc/firmware-min-version",
g_memdup(&val, sizeof(val)), sizeof(val));

val = cpu_to_le64(HPPA_TLB_ENTRIES - HPPA_BTLB_ENTRIES);
val = cpu_to_le64(HPPA_TLB_ENTRIES - btlb_entries);
fw_cfg_add_file(fw_cfg, "/etc/cpu/tlb_entries",
g_memdup(&val, sizeof(val)), sizeof(val));

val = cpu_to_le64(HPPA_BTLB_ENTRIES);
val = cpu_to_le64(btlb_entries);
fw_cfg_add_file(fw_cfg, "/etc/cpu/btlb_entries",
g_memdup(&val, sizeof(val)), sizeof(val));

Expand Down Expand Up @@ -257,45 +269,61 @@ static DinoState *dino_init(MemoryRegion *addr_space)
/*
* Step 1: Create CPUs and Memory
*/
static void machine_HP_common_init_cpus(MachineState *machine)
static TranslateFn *machine_HP_common_init_cpus(MachineState *machine)
{
MemoryRegion *addr_space = get_system_memory();
MemoryRegion *cpu_region;
long i;
unsigned int smp_cpus = machine->smp.cpus;
char *name;
TranslateFn *translate;
MemoryRegion *cpu_region;

/* Create CPUs. */
for (i = 0; i < smp_cpus; i++) {
name = g_strdup_printf("cpu%ld-io-eir", i);
for (unsigned int i = 0; i < smp_cpus; i++) {
cpu[i] = HPPA_CPU(cpu_create(machine->cpu_type));
}

/*
* For now, treat address layout as if PSW_W is clear.
* TODO: create a proper hppa64 board model and load elf64 firmware.
*/
if (hppa_is_pa20(&cpu[0]->env)) {
translate = translate_pa20;
} else {
translate = translate_pa10;
}

for (unsigned int i = 0; i < smp_cpus; i++) {
g_autofree char *name = g_strdup_printf("cpu%u-io-eir", i);

cpu_region = g_new(MemoryRegion, 1);
memory_region_init_io(cpu_region, OBJECT(cpu[i]), &hppa_io_eir_ops,
cpu[i], name, 4);
memory_region_add_subregion(addr_space, CPU_HPA + i * 0x1000,
memory_region_add_subregion(addr_space,
translate(NULL, CPU_HPA + i * 0x1000),
cpu_region);
g_free(name);
}

/* RTC and DebugOutputPort on CPU #0 */
cpu_region = g_new(MemoryRegion, 1);
memory_region_init_io(cpu_region, OBJECT(cpu[0]), &hppa_io_helper_ops,
cpu[0], "cpu0-io-rtc", 2 * sizeof(uint64_t));
memory_region_add_subregion(addr_space, CPU_HPA + 16, cpu_region);
memory_region_add_subregion(addr_space, translate(NULL, CPU_HPA + 16),
cpu_region);

/* Main memory region. */
if (machine->ram_size > 3 * GiB) {
error_report("RAM size is currently restricted to 3GB");
exit(EXIT_FAILURE);
}
memory_region_add_subregion_overlap(addr_space, 0, machine->ram, -1);

return translate;
}

/*
* Last creation step: Add SCSI discs, NICs, graphics & load firmware
*/
static void machine_HP_common_init_tail(MachineState *machine, PCIBus *pci_bus)
static void machine_HP_common_init_tail(MachineState *machine, PCIBus *pci_bus,
TranslateFn *translate)
{
const char *kernel_filename = machine->kernel_filename;
const char *kernel_cmdline = machine->kernel_cmdline;
Expand Down Expand Up @@ -323,13 +351,13 @@ static void machine_HP_common_init_tail(MachineState *machine, PCIBus *pci_bus)
dev = qdev_new("artist");
s = SYS_BUS_DEVICE(dev);
sysbus_realize_and_unref(s, &error_fatal);
sysbus_mmio_map(s, 0, LASI_GFX_HPA);
sysbus_mmio_map(s, 1, ARTIST_FB_ADDR);
sysbus_mmio_map(s, 0, translate(NULL, LASI_GFX_HPA));
sysbus_mmio_map(s, 1, translate(NULL, ARTIST_FB_ADDR));
}

/* Network setup. */
if (enable_lasi_lan()) {
lasi_82596_init(addr_space, LASI_LAN_HPA,
lasi_82596_init(addr_space, translate(NULL, LASI_LAN_HPA),
qdev_get_gpio_in(lasi_dev, LASI_IRQ_LAN_HPA));
}

Expand Down Expand Up @@ -373,7 +401,7 @@ static void machine_HP_common_init_tail(MachineState *machine, PCIBus *pci_bus)
qemu_register_powerdown_notifier(&hppa_system_powerdown_notifier);

/* fw_cfg configuration interface */
create_fw_cfg(machine, pci_bus);
create_fw_cfg(machine, pci_bus, translate(NULL, FW_CFG_IO_BASE));

/* Load firmware. Given that this is not "real" firmware,
but one explicitly written for the emulation, we might as
Expand All @@ -385,23 +413,19 @@ static void machine_HP_common_init_tail(MachineState *machine, PCIBus *pci_bus)
exit(1);
}

size = load_elf(firmware_filename, NULL, NULL, NULL,
size = load_elf(firmware_filename, NULL, translate, NULL,
&firmware_entry, &firmware_low, &firmware_high, NULL,
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);
}
qemu_log_mask(CPU_LOG_PAGE, "Firmware loaded at 0x%08" PRIx64
"-0x%08" PRIx64 ", entry at 0x%08" PRIx64 ".\n",
firmware_low, firmware_high, firmware_entry);
if (firmware_low < FIRMWARE_START || firmware_high >= FIRMWARE_END) {
if (firmware_low < translate(NULL, FIRMWARE_START) ||
firmware_high >= translate(NULL, FIRMWARE_END)) {
error_report("Firmware overlaps with memory or IO space");
exit(1);
}
Expand All @@ -410,18 +434,16 @@ static void machine_HP_common_init_tail(MachineState *machine, PCIBus *pci_bus)
rom_region = g_new(MemoryRegion, 1);
memory_region_init_ram(rom_region, NULL, "firmware",
(FIRMWARE_END - FIRMWARE_START), &error_fatal);
memory_region_add_subregion(addr_space, FIRMWARE_START, rom_region);
memory_region_add_subregion(addr_space,
translate(NULL, FIRMWARE_START), rom_region);

/* Load kernel */
if (kernel_filename) {
size = load_elf(kernel_filename, NULL, &cpu_hppa_to_phys,
size = load_elf(kernel_filename, NULL, linux_kernel_virt_to_phys,
NULL, &kernel_entry, &kernel_low, &kernel_high, NULL,
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;
kernel_entry = linux_kernel_virt_to_phys(NULL, kernel_entry);

if (size < 0) {
error_report("could not load kernel '%s'", kernel_filename);
Expand Down Expand Up @@ -499,41 +521,48 @@ static void machine_HP_B160L_init(MachineState *machine)
{
DeviceState *dev, *dino_dev;
MemoryRegion *addr_space = get_system_memory();
TranslateFn *translate;
ISABus *isa_bus;
PCIBus *pci_bus;

/* Create CPUs and RAM. */
machine_HP_common_init_cpus(machine);
translate = machine_HP_common_init_cpus(machine);

if (hppa_is_pa20(&cpu[0]->env)) {
error_report("The HP B160L workstation requires a 32-bit "
"CPU. Use '-machine C3700' instead.");
exit(1);
}

/* Init Lasi chip */
lasi_dev = DEVICE(lasi_init());
memory_region_add_subregion(addr_space, LASI_HPA,
memory_region_add_subregion(addr_space, translate(NULL, LASI_HPA),
sysbus_mmio_get_region(
SYS_BUS_DEVICE(lasi_dev), 0));

/* Init Dino (PCI host bus chip). */
dino_dev = DEVICE(dino_init(addr_space));
memory_region_add_subregion(addr_space, DINO_HPA,
memory_region_add_subregion(addr_space, translate(NULL, DINO_HPA),
sysbus_mmio_get_region(
SYS_BUS_DEVICE(dino_dev), 0));
pci_bus = PCI_BUS(qdev_get_child_bus(dino_dev, "pci"));
assert(pci_bus);

/* Create ISA bus, needed for PS/2 kbd/mouse port emulation */
isa_bus = hppa_isa_bus();
isa_bus = hppa_isa_bus(translate(NULL, IDE_HPA));
assert(isa_bus);

/* Serial ports: Lasi and Dino use a 7.272727 MHz clock. */
serial_mm_init(addr_space, LASI_UART_HPA + 0x800, 0,
serial_mm_init(addr_space, translate(NULL, LASI_UART_HPA + 0x800), 0,
qdev_get_gpio_in(lasi_dev, LASI_IRQ_UART_HPA), 7272727 / 16,
serial_hd(0), DEVICE_BIG_ENDIAN);

serial_mm_init(addr_space, DINO_UART_HPA + 0x800, 0,
serial_mm_init(addr_space, translate(NULL, DINO_UART_HPA + 0x800), 0,
qdev_get_gpio_in(dino_dev, DINO_IRQ_RS232INT), 7272727 / 16,
serial_hd(1), DEVICE_BIG_ENDIAN);

/* Parallel port */
parallel_mm_init(addr_space, LASI_LPT_HPA + 0x800, 0,
parallel_mm_init(addr_space, translate(NULL, LASI_LPT_HPA + 0x800), 0,
qdev_get_gpio_in(lasi_dev, LASI_IRQ_LAN_HPA),
parallel_hds[0]);

Expand All @@ -542,15 +571,17 @@ static void machine_HP_B160L_init(MachineState *machine)
sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0,
qdev_get_gpio_in(lasi_dev, LASI_IRQ_PS2KBD_HPA));
memory_region_add_subregion(addr_space, LASI_PS2KBD_HPA,
memory_region_add_subregion(addr_space,
translate(NULL, LASI_PS2KBD_HPA),
sysbus_mmio_get_region(SYS_BUS_DEVICE(dev),
0));
memory_region_add_subregion(addr_space, LASI_PS2KBD_HPA + 0x100,
memory_region_add_subregion(addr_space,
translate(NULL, LASI_PS2KBD_HPA + 0x100),
sysbus_mmio_get_region(SYS_BUS_DEVICE(dev),
1));

/* Add SCSI discs, NICs, graphics & load firmware */
machine_HP_common_init_tail(machine, pci_bus);
machine_HP_common_init_tail(machine, pci_bus, translate);
}

static AstroState *astro_init(void)
Expand All @@ -572,21 +603,28 @@ static void machine_HP_C3700_init(MachineState *machine)
AstroState *astro;
DeviceState *astro_dev;
MemoryRegion *addr_space = get_system_memory();
TranslateFn *translate;

/* Create CPUs and RAM. */
machine_HP_common_init_cpus(machine);
translate = machine_HP_common_init_cpus(machine);

if (!hppa_is_pa20(&cpu[0]->env)) {
error_report("The HP C3000 workstation requires a 64-bit CPU. "
"Use '-machine B160L' instead.");
exit(1);
}

/* Init Astro and the Elroys (PCI host bus chips). */
astro = astro_init();
astro_dev = DEVICE(astro);
memory_region_add_subregion(addr_space, ASTRO_HPA,
memory_region_add_subregion(addr_space, translate(NULL, ASTRO_HPA),
sysbus_mmio_get_region(
SYS_BUS_DEVICE(astro_dev), 0));
pci_bus = PCI_BUS(qdev_get_child_bus(DEVICE(astro->elroy[0]), "pci"));
assert(pci_bus);

/* Add SCSI discs, NICs, graphics & load firmware */
machine_HP_common_init_tail(machine, pci_bus);
machine_HP_common_init_tail(machine, pci_bus, translate);
}

static void hppa_machine_reset(MachineState *ms, ShutdownCause reason)
Expand All @@ -608,10 +646,6 @@ static void hppa_machine_reset(MachineState *ms, ShutdownCause reason)

cs->exception_index = -1;
cs->halted = 0;

/* clear any existing TLB and BTLB entries */
memset(cpu[i]->env.tlb, 0, sizeof(cpu[i]->env.tlb));
cpu[i]->env.tlb_last = HPPA_BTLB_ENTRIES;
}

/* already initialized by machine_hppa_init()? */
Expand All @@ -637,13 +671,19 @@ static void hppa_nmi(NMIState *n, int cpu_index, Error **errp)
}
}

static const char *HP_B160L_machine_valid_cpu_types[] = {
TYPE_HPPA_CPU,
NULL
};

static void HP_B160L_machine_init_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
NMIClass *nc = NMI_CLASS(oc);

mc->desc = "HP B160L workstation";
mc->default_cpu_type = TYPE_HPPA_CPU;
mc->valid_cpu_types = HP_B160L_machine_valid_cpu_types;
mc->init = machine_HP_B160L_init;
mc->reset = hppa_machine_reset;
mc->block_default_type = IF_SCSI;
Expand All @@ -668,13 +708,19 @@ static const TypeInfo HP_B160L_machine_init_typeinfo = {
},
};

static const char *HP_C3700_machine_valid_cpu_types[] = {
TYPE_HPPA64_CPU,
NULL
};

static void HP_C3700_machine_init_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
NMIClass *nc = NMI_CLASS(oc);

mc->desc = "HP C3700 workstation";
mc->default_cpu_type = TYPE_HPPA_CPU;
mc->default_cpu_type = TYPE_HPPA64_CPU;
mc->valid_cpu_types = HP_C3700_machine_valid_cpu_types;
mc->init = machine_HP_C3700_init;
mc->reset = hppa_machine_reset;
mc->block_default_type = IF_SCSI;
Expand Down

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