target-sparc: fix up niagara machine

Remove the Niagara stub implementation from sun4u.c and add a machine,
compatible with Legion simulator from the OpenSPARC T1 project.

The machine uses the firmware supplied with the OpenSPARC T1 project,
http://download.oracle.com/technetwork/systems/opensparc/OpenSPARCT1_Arch.1.5.tar.bz2
in the directory S10image/, and is able to boot the supplied Solaris 10 image.

Note that for compatibility with the naming conventions for SPARC machines
the new machine name is lowercase niagara.

Signed-off-by: Artyom Tarasenko <atar4qemu@gmail.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>

1 files changed, 177 insertions, 0 deletions

diff --git a/hw/sparc64/niagara.c b/hw/sparc64/niagara.c
new file mode 100644
index 0000000000..b55d4bb8d3
--- /dev/null
+++ b/hw/sparc64/niagara.c
@@ -0,0 +1,177 @@
+/*
+ * QEMU Sun4v/Niagara System Emulator
+ *
+ * Copyright (c) 2016 Artyom Tarasenko
+ *
+ * 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 "qapi/error.h"
+#include "qemu-common.h"
+#include "cpu.h"
+#include "hw/hw.h"
+#include "hw/boards.h"
+#include "hw/char/serial.h"
+#include "hw/empty_slot.h"
+#include "hw/loader.h"
+#include "hw/sparc/sparc64.h"
+#include "hw/timer/sun4v-rtc.h"
+#include "exec/address-spaces.h"
+#include "sysemu/block-backend.h"
+
+
+typedef struct NiagaraBoardState {
+    MemoryRegion hv_ram;
+    MemoryRegion partition_ram;
+    MemoryRegion nvram;
+    MemoryRegion md_rom;
+    MemoryRegion hv_rom;
+    MemoryRegion vdisk_ram;
+    MemoryRegion prom;
+} NiagaraBoardState;
+
+#define NIAGARA_HV_RAM_BASE 0x100000ULL
+#define NIAGARA_HV_RAM_SIZE 0x3f00000ULL /* 63 MiB */
+
+#define NIAGARA_PARTITION_RAM_BASE 0x80000000ULL
+
+#define NIAGARA_UART_BASE   0x1f10000000ULL
+
+#define NIAGARA_NVRAM_BASE  0x1f11000000ULL
+#define NIAGARA_NVRAM_SIZE  0x2000
+
+#define NIAGARA_MD_ROM_BASE 0x1f12000000ULL
+#define NIAGARA_MD_ROM_SIZE 0x2000
+
+#define NIAGARA_HV_ROM_BASE 0x1f12080000ULL
+#define NIAGARA_HV_ROM_SIZE 0x2000
+
+#define NIAGARA_IOBBASE     0x9800000000ULL
+#define NIAGARA_IOBSIZE     0x0100000000ULL
+
+#define NIAGARA_VDISK_BASE  0x1f40000000ULL
+#define NIAGARA_RTC_BASE    0xfff0c1fff8ULL
+#define NIAGARA_UART_BASE   0x1f10000000ULL
+
+/* Firmware layout
+ *
+ * |------------------|
+ * |   openboot.bin   |
+ * |------------------| PROM_ADDR + OBP_OFFSET
+ * |      q.bin       |
+ * |------------------| PROM_ADDR + Q_OFFSET
+ * |     reset.bin    |
+ * |------------------| PROM_ADDR
+ */
+#define NIAGARA_PROM_BASE   0xfff0000000ULL
+#define NIAGARA_Q_OFFSET    0x10000ULL
+#define NIAGARA_OBP_OFFSET  0x80000ULL
+#define PROM_SIZE_MAX       (4 * 1024 * 1024)
+
+/* Niagara hardware initialisation */
+static void niagara_init(MachineState *machine)
+{
+    NiagaraBoardState *s = g_new(NiagaraBoardState, 1);
+    DriveInfo *dinfo = drive_get_next(IF_PFLASH);
+    MemoryRegion *sysmem = get_system_memory();
+
+    /* init CPUs */
+    sparc64_cpu_devinit(machine->cpu_model, "Sun UltraSparc T1",
+                        NIAGARA_PROM_BASE);
+    /* set up devices */
+    memory_region_allocate_system_memory(&s->hv_ram, NULL, "sun4v-hv.ram",
+                                         NIAGARA_HV_RAM_SIZE);
+    memory_region_add_subregion(sysmem, NIAGARA_HV_RAM_BASE, &s->hv_ram);
+
+    memory_region_allocate_system_memory(&s->partition_ram, NULL,
+                                         "sun4v-partition.ram",
+                                         machine->ram_size);
+    memory_region_add_subregion(sysmem, NIAGARA_PARTITION_RAM_BASE,
+                                &s->partition_ram);
+
+    memory_region_allocate_system_memory(&s->nvram, NULL,
+                                         "sun4v.nvram", NIAGARA_NVRAM_SIZE);
+    memory_region_add_subregion(sysmem, NIAGARA_NVRAM_BASE, &s->nvram);
+    memory_region_allocate_system_memory(&s->md_rom, NULL,
+                                         "sun4v-md.rom", NIAGARA_MD_ROM_SIZE);
+    memory_region_add_subregion(sysmem, NIAGARA_MD_ROM_BASE, &s->md_rom);
+    memory_region_allocate_system_memory(&s->hv_rom, NULL,
+                                         "sun4v-hv.rom", NIAGARA_HV_ROM_SIZE);
+    memory_region_add_subregion(sysmem, NIAGARA_HV_ROM_BASE, &s->hv_rom);
+    memory_region_allocate_system_memory(&s->prom, NULL,
+                                         "sun4v.prom", PROM_SIZE_MAX);
+    memory_region_add_subregion(sysmem, NIAGARA_PROM_BASE, &s->prom);
+
+    rom_add_file_fixed("nvram1", NIAGARA_NVRAM_BASE, -1);
+    rom_add_file_fixed("1up-md.bin", NIAGARA_MD_ROM_BASE, -1);
+    rom_add_file_fixed("1up-hv.bin", NIAGARA_HV_ROM_BASE, -1);
+
+    rom_add_file_fixed("reset.bin", NIAGARA_PROM_BASE, -1);
+    rom_add_file_fixed("q.bin", NIAGARA_PROM_BASE + NIAGARA_Q_OFFSET, -1);
+    rom_add_file_fixed("openboot.bin", NIAGARA_PROM_BASE + NIAGARA_OBP_OFFSET,
+                       -1);
+
+    /* the virtual ramdisk is kind of initrd, but it resides
+       outside of the partition RAM */
+    if (dinfo) {
+        BlockBackend *blk = blk_by_legacy_dinfo(dinfo);
+        int size = blk_getlength(blk);
+        if (size > 0) {
+            memory_region_allocate_system_memory(&s->vdisk_ram, NULL,
+                                                 "sun4v_vdisk.ram", size);
+            memory_region_add_subregion(get_system_memory(),
+                                        NIAGARA_VDISK_BASE, &s->vdisk_ram);
+            dinfo->is_default = 1;
+            rom_add_file_fixed(blk_bs(blk)->filename, NIAGARA_VDISK_BASE, -1);
+        } else {
+            fprintf(stderr, "qemu: could not load ram disk '%s'\n",
+                    blk_bs(blk)->filename);
+            exit(1);
+        }
+    }
+    serial_mm_init(sysmem, NIAGARA_UART_BASE, 0, NULL, 115200,
+                   serial_hds[0], DEVICE_BIG_ENDIAN);
+
+    empty_slot_init(NIAGARA_IOBBASE, NIAGARA_IOBSIZE);
+    sun4v_rtc_init(NIAGARA_RTC_BASE);
+}
+
+static void niagara_class_init(ObjectClass *oc, void *data)
+{
+    MachineClass *mc = MACHINE_CLASS(oc);
+
+    mc->desc = "Sun4v platform, Niagara";
+    mc->init = niagara_init;
+    mc->max_cpus = 1; /* XXX for now */
+    mc->default_boot_order = "c";
+}
+
+static const TypeInfo niagara_type = {
+    .name = MACHINE_TYPE_NAME("niagara"),
+    .parent = TYPE_MACHINE,
+    .class_init = niagara_class_init,
+};
+
+static void niagara_register_types(void)
+{
+    type_register_static(&niagara_type);
+}
+
+type_init(niagara_register_types)