94 lines
2.5 KiB
C
94 lines
2.5 KiB
C
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/*
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* QEMU SiFive Test Finisher
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*
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* Copyright (c) 2018 SiFive, Inc.
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*
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* Test finisher memory mapped device used to exit simulation
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2 or later, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "qemu/osdep.h"
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#include "hw/sysbus.h"
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#include "target/riscv/cpu.h"
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#include "hw/riscv/sifive_test.h"
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static uint64_t sifive_test_read(void *opaque, hwaddr addr, unsigned int size)
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{
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return 0;
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}
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static void sifive_test_write(void *opaque, hwaddr addr,
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uint64_t val64, unsigned int size)
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{
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if (addr == 0) {
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int status = val64 & 0xffff;
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int code = (val64 >> 16) & 0xffff;
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switch (status) {
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case FINISHER_FAIL:
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exit(code);
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case FINISHER_PASS:
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exit(0);
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default:
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break;
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}
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}
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hw_error("%s: write: addr=0x%x val=0x%016" PRIx64 "\n",
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__func__, (int)addr, val64);
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}
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static const MemoryRegionOps sifive_test_ops = {
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.read = sifive_test_read,
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.write = sifive_test_write,
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.endianness = DEVICE_NATIVE_ENDIAN,
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.valid = {
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.min_access_size = 4,
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.max_access_size = 4
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}
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};
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static void sifive_test_init(Object *obj)
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{
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SiFiveTestState *s = SIFIVE_TEST(obj);
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memory_region_init_io(&s->mmio, obj, &sifive_test_ops, s,
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TYPE_SIFIVE_TEST, 0x1000);
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sysbus_init_mmio(SYS_BUS_DEVICE(obj), &s->mmio);
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}
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static const TypeInfo sifive_test_info = {
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.name = TYPE_SIFIVE_TEST,
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.parent = TYPE_SYS_BUS_DEVICE,
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.instance_size = sizeof(SiFiveTestState),
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.instance_init = sifive_test_init,
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};
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static void sifive_test_register_types(void)
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{
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type_register_static(&sifive_test_info);
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}
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type_init(sifive_test_register_types)
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/*
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* Create Test device.
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*/
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DeviceState *sifive_test_create(hwaddr addr)
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{
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DeviceState *dev = qdev_create(NULL, TYPE_SIFIVE_TEST);
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qdev_init_nofail(dev);
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sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, addr);
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return dev;
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}
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