d5938f29fe
In my "build everything" tree, changing sysemu/sysemu.h triggers a recompile of some 5400 out of 6600 objects (not counting tests and objects that don't depend on qemu/osdep.h). Almost a third of its inclusions are actually superfluous. Delete them. Downgrade two more to qapi/qapi-types-run-state.h, and move one from char/serial.h to char/serial.c. hw/semihosting/config.c, monitor/monitor.c, qdev-monitor.c, and stubs/semihost.c define variables declared in sysemu/sysemu.h without including it. The compiler is cool with that, but include it anyway. This doesn't reduce actual use much, as it's still included into widely included headers. The next commit will tackle that. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20190812052359.30071-27-armbru@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
141 lines
3.7 KiB
C
141 lines
3.7 KiB
C
/*
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* ARM IoTKit system information block
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*
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* Copyright (c) 2018 Linaro Limited
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* Written by Peter Maydell
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 or
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* (at your option) any later version.
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*/
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/*
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* This is a model of the "system information block" which is part of the
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* Arm IoTKit and documented in
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* http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ecm0601256/index.html
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* It consists of 2 read-only version/config registers, plus the
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* usual ID registers.
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*/
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#include "qemu/osdep.h"
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#include "qemu/log.h"
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#include "qemu/module.h"
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#include "trace.h"
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#include "qapi/error.h"
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#include "hw/sysbus.h"
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#include "hw/registerfields.h"
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#include "hw/misc/iotkit-sysinfo.h"
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#include "hw/qdev-properties.h"
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REG32(SYS_VERSION, 0x0)
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REG32(SYS_CONFIG, 0x4)
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REG32(PID4, 0xfd0)
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REG32(PID5, 0xfd4)
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REG32(PID6, 0xfd8)
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REG32(PID7, 0xfdc)
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REG32(PID0, 0xfe0)
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REG32(PID1, 0xfe4)
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REG32(PID2, 0xfe8)
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REG32(PID3, 0xfec)
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REG32(CID0, 0xff0)
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REG32(CID1, 0xff4)
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REG32(CID2, 0xff8)
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REG32(CID3, 0xffc)
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/* PID/CID values */
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static const int sysinfo_id[] = {
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0x04, 0x00, 0x00, 0x00, /* PID4..PID7 */
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0x58, 0xb8, 0x0b, 0x00, /* PID0..PID3 */
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0x0d, 0xf0, 0x05, 0xb1, /* CID0..CID3 */
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};
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static uint64_t iotkit_sysinfo_read(void *opaque, hwaddr offset,
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unsigned size)
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{
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IoTKitSysInfo *s = IOTKIT_SYSINFO(opaque);
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uint64_t r;
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switch (offset) {
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case A_SYS_VERSION:
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r = s->sys_version;
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break;
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case A_SYS_CONFIG:
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r = s->sys_config;
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break;
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case A_PID4 ... A_CID3:
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r = sysinfo_id[(offset - A_PID4) / 4];
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break;
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default:
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qemu_log_mask(LOG_GUEST_ERROR,
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"IoTKit SysInfo read: bad offset %x\n", (int)offset);
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r = 0;
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break;
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}
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trace_iotkit_sysinfo_read(offset, r, size);
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return r;
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}
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static void iotkit_sysinfo_write(void *opaque, hwaddr offset,
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uint64_t value, unsigned size)
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{
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trace_iotkit_sysinfo_write(offset, value, size);
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qemu_log_mask(LOG_GUEST_ERROR,
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"IoTKit SysInfo: write to RO offset 0x%x\n", (int)offset);
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}
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static const MemoryRegionOps iotkit_sysinfo_ops = {
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.read = iotkit_sysinfo_read,
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.write = iotkit_sysinfo_write,
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.endianness = DEVICE_LITTLE_ENDIAN,
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/* byte/halfword accesses are just zero-padded on reads and writes */
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.impl.min_access_size = 4,
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.impl.max_access_size = 4,
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.valid.min_access_size = 1,
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.valid.max_access_size = 4,
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};
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static Property iotkit_sysinfo_props[] = {
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DEFINE_PROP_UINT32("SYS_VERSION", IoTKitSysInfo, sys_version, 0),
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DEFINE_PROP_UINT32("SYS_CONFIG", IoTKitSysInfo, sys_config, 0),
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DEFINE_PROP_END_OF_LIST()
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};
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static void iotkit_sysinfo_init(Object *obj)
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{
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SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
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IoTKitSysInfo *s = IOTKIT_SYSINFO(obj);
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memory_region_init_io(&s->iomem, obj, &iotkit_sysinfo_ops,
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s, "iotkit-sysinfo", 0x1000);
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sysbus_init_mmio(sbd, &s->iomem);
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}
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static void iotkit_sysinfo_class_init(ObjectClass *klass, void *data)
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{
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DeviceClass *dc = DEVICE_CLASS(klass);
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/*
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* This device has no guest-modifiable state and so it
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* does not need a reset function or VMState.
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*/
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dc->props = iotkit_sysinfo_props;
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}
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static const TypeInfo iotkit_sysinfo_info = {
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.name = TYPE_IOTKIT_SYSINFO,
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.parent = TYPE_SYS_BUS_DEVICE,
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.instance_size = sizeof(IoTKitSysInfo),
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.instance_init = iotkit_sysinfo_init,
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.class_init = iotkit_sysinfo_class_init,
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};
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static void iotkit_sysinfo_register_types(void)
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{
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type_register_static(&iotkit_sysinfo_info);
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}
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type_init(iotkit_sysinfo_register_types);
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