[PATCH v2 11/11] hw/hppa: Add 715 machine type including NCR710 SCSI

[deller@kernel.org]

From: Helge Deller <deller@gmx.de>

Add a new emulation for a 715/64 machine.
This machines has no PCI bus, and has the majority of the devices (SCSI,
network, serial ports, ...) provided by a LASI multi-function I/O chip.

v2: based on feedback from Richard
- Fix indenting and use assert() to check ncr710 device availability

Signed-off-by: Helge Deller <deller@gmx.de>
---
 hw/hppa/machine.c | 95 ++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 93 insertions(+), 2 deletions(-)

diff --git a/hw/hppa/machine.c b/hw/hppa/machine.c
index 81ed050b5e..7b130a0db0 100644
--- a/hw/hppa/machine.c
+++ b/hw/hppa/machine.c
@@ -30,6 +30,8 @@
 #include "hw/pci-host/astro.h"
 #include "hw/pci-host/dino.h"
 #include "hw/misc/lasi.h"
+#include "hw/scsi/ncr53c710.h"
+#include "hw/scsi/lasi_ncr710.h"
 #include "hppa_hardware.h"
 #include "qemu/units.h"
 #include "qapi/error.h"
@@ -363,8 +365,17 @@ static void machine_HP_common_init_tail(MachineState *machine, PCIBus *pci_bus,
 
     /* SCSI disk setup. */
     if (drive_get_max_bus(IF_SCSI) >= 0) {
-        dev = DEVICE(pci_create_simple(pci_bus, -1, "lsi53c895a"));
-        lsi53c8xx_handle_legacy_cmdline(dev);
+        if (pci_bus) {
+            dev = DEVICE(pci_create_simple(pci_bus, -1, "lsi53c895a"));
+            lsi53c8xx_handle_legacy_cmdline(dev);
+        } else {
+            dev = lasi_ncr710_init(addr_space,
+                                   translate(NULL, LASI_HPA_715 + 0x6000),
+                                   qdev_get_gpio_in(lasi_dev,
+                                                    LASI_IRQ_SCSI_HPA));
+            assert(dev);
+            lasi_ncr710_handle_legacy_cmdline(dev);
+        }
     }
 
     /* Graphics setup. */
@@ -537,6 +548,63 @@ static void machine_HP_common_init_tail(MachineState *machine, PCIBus *pci_bus,
     cpu[0]->env.kernel_entry = kernel_entry;
 }
 
+/*
+ * Create HP 715/64 workstation
+ */
+static void machine_HP_715_init(MachineState *machine)
+{
+    DeviceState *dev;
+    MemoryRegion *addr_space = get_system_memory();
+    TranslateFn *translate;
+    ISABus *isa_bus;
+
+    /* Create CPUs and RAM.  */
+    translate = machine_HP_common_init_cpus(machine);
+
+    if (hppa_is_pa20(&cpu[0]->env)) {
+        error_report("The HP 715/64 workstation requires a 32-bit "
+                     "CPU. Use '-machine 715' instead.");
+        exit(1);
+    }
+
+    /* Create ISA bus, needed for PS/2 kbd/mouse port emulation */
+    isa_bus = hppa_isa_bus(translate(NULL, IDE_HPA));
+    assert(isa_bus);
+
+    /* Init Lasi chip */
+    lasi_dev = DEVICE(lasi_init());
+    memory_region_add_subregion(addr_space, translate(NULL, LASI_HPA_715),
+                                sysbus_mmio_get_region(
+                                    SYS_BUS_DEVICE(lasi_dev), 0));
+
+    /* Serial ports: Lasi use a 7.272727 MHz clock. */
+    serial_mm_init(addr_space, translate(NULL, LASI_HPA_715 + LASI_UART + 0x800), 0,
+        qdev_get_gpio_in(lasi_dev, LASI_IRQ_UART_HPA), 7272727 / 16,
+        serial_hd(0), DEVICE_BIG_ENDIAN);
+
+    /* Parallel port */
+    parallel_mm_init(addr_space, translate(NULL, LASI_HPA_715 + LASI_LPT + 0x800), 0,
+                     qdev_get_gpio_in(lasi_dev, LASI_IRQ_LPT_HPA),
+                     parallel_hds[0]);
+
+    /* PS/2 Keyboard/Mouse */
+    dev = qdev_new(TYPE_LASIPS2);
+    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,
+                                translate(NULL, LASI_HPA_715 + LASI_PS2),
+                                sysbus_mmio_get_region(SYS_BUS_DEVICE(dev),
+                                                       0));
+    memory_region_add_subregion(addr_space,
+                                translate(NULL, LASI_HPA_715 + LASI_PS2 + 0x100),
+                                sysbus_mmio_get_region(SYS_BUS_DEVICE(dev),
+                                                       1));
+
+    /* Add SCSI discs, NICs, graphics & load firmware */
+    machine_HP_common_init_tail(machine, NULL, translate);
+}
+
 /*
  * Create HP B160L workstation
  */
@@ -743,6 +811,25 @@ static void HP_C3700_machine_init_class_init(ObjectClass *oc, const void *data)
     mc->default_ram_size = 1024 * MiB;
 }
 
+static void HP_715_machine_init_class_init(ObjectClass *oc, const void *data)
+{
+    static const char * const valid_cpu_types[] = {
+        TYPE_HPPA_CPU,
+        NULL
+    };
+    MachineClass *mc = MACHINE_CLASS(oc);
+
+    mc->desc = "HP 715/64 workstation";
+    mc->default_cpu_type = TYPE_HPPA_CPU;
+    mc->valid_cpu_types = valid_cpu_types;
+    mc->init = machine_HP_715_init;
+    /* can only support up to max. 8 CPUs due inventory major numbers */
+    mc->max_cpus = MIN_CONST(HPPA_MAX_CPUS, 8);
+    mc->default_ram_size = 256 * MiB;
+    mc->default_nic = NULL;
+}
+
+
 static const TypeInfo hppa_machine_types[] = {
     {
         .name           = TYPE_HPPA_COMMON_MACHINE,
@@ -762,6 +849,10 @@ static const TypeInfo hppa_machine_types[] = {
         .name = MACHINE_TYPE_NAME("C3700"),
         .parent = TYPE_HPPA_COMMON_MACHINE,
         .class_init = HP_C3700_machine_init_class_init,
+    }, {
+        .name = MACHINE_TYPE_NAME("715"),
+        .parent = TYPE_HPPA_COMMON_MACHINE,
+        .class_init = HP_715_machine_init_class_init,
     },
 };
 
-- 
2.51.0