* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
-#include "sysbus.h"
-#include "monitor.h"
-#include "exec-memory.h"
+#include "hw/sysbus.h"
+#include "monitor/monitor.h"
+#include "exec/address-spaces.h"
static void sysbus_dev_print(Monitor *mon, DeviceState *dev, int indent);
static char *sysbus_get_fw_dev_path(DeviceState *dev);
-struct BusInfo system_bus_info = {
- .name = "System",
- .size = sizeof(BusState),
- .print_dev = sysbus_dev_print,
- .get_fw_dev_path = sysbus_get_fw_dev_path,
+static void system_bus_class_init(ObjectClass *klass, void *data)
+{
+ BusClass *k = BUS_CLASS(klass);
+
+ k->print_dev = sysbus_dev_print;
+ k->get_fw_dev_path = sysbus_get_fw_dev_path;
+}
+
+static const TypeInfo system_bus_info = {
+ .name = TYPE_SYSTEM_BUS,
+ .parent = TYPE_BUS,
+ .instance_size = sizeof(BusState),
+ .class_init = system_bus_class_init,
};
void sysbus_connect_irq(SysBusDevice *dev, int n, qemu_irq irq)
}
}
-void sysbus_mmio_map(SysBusDevice *dev, int n, target_phys_addr_t addr)
+static void sysbus_mmio_map_common(SysBusDevice *dev, int n, hwaddr addr,
+ bool may_overlap, unsigned priority)
{
assert(n >= 0 && n < dev->num_mmio);
/* ??? region already mapped here. */
return;
}
- if (dev->mmio[n].addr != (target_phys_addr_t)-1) {
+ if (dev->mmio[n].addr != (hwaddr)-1) {
/* Unregister previous mapping. */
- if (dev->mmio[n].memory) {
- memory_region_del_subregion(get_system_memory(),
- dev->mmio[n].memory);
- } else if (dev->mmio[n].unmap) {
- dev->mmio[n].unmap(dev, dev->mmio[n].addr);
- } else {
- cpu_register_physical_memory(dev->mmio[n].addr, dev->mmio[n].size,
- IO_MEM_UNASSIGNED);
- }
+ memory_region_del_subregion(get_system_memory(), dev->mmio[n].memory);
}
dev->mmio[n].addr = addr;
- if (dev->mmio[n].memory) {
+ if (may_overlap) {
+ memory_region_add_subregion_overlap(get_system_memory(),
+ addr,
+ dev->mmio[n].memory,
+ priority);
+ }
+ else {
memory_region_add_subregion(get_system_memory(),
addr,
dev->mmio[n].memory);
- } else if (dev->mmio[n].cb) {
- dev->mmio[n].cb(dev, addr);
- } else {
- cpu_register_physical_memory(addr, dev->mmio[n].size,
- dev->mmio[n].iofunc);
}
}
+void sysbus_mmio_map(SysBusDevice *dev, int n, hwaddr addr)
+{
+ sysbus_mmio_map_common(dev, n, addr, false, 0);
+}
+
+void sysbus_mmio_map_overlap(SysBusDevice *dev, int n, hwaddr addr,
+ unsigned priority)
+{
+ sysbus_mmio_map_common(dev, n, addr, true, priority);
+}
/* Request an IRQ source. The actual IRQ object may be populated later. */
void sysbus_init_irq(SysBusDevice *dev, qemu_irq *p)
}
}
-void sysbus_init_mmio(SysBusDevice *dev, target_phys_addr_t size,
- ram_addr_t iofunc)
+void sysbus_init_mmio(SysBusDevice *dev, MemoryRegion *memory)
{
int n;
assert(dev->num_mmio < QDEV_MAX_MMIO);
n = dev->num_mmio++;
dev->mmio[n].addr = -1;
- dev->mmio[n].size = size;
- dev->mmio[n].iofunc = iofunc;
-}
-
-void sysbus_init_mmio_cb2(SysBusDevice *dev,
- mmio_mapfunc cb, mmio_mapfunc unmap)
-{
- int n;
-
- assert(dev->num_mmio < QDEV_MAX_MMIO);
- n = dev->num_mmio++;
- dev->mmio[n].addr = -1;
- dev->mmio[n].size = 0;
- dev->mmio[n].cb = cb;
- dev->mmio[n].unmap = unmap;
+ dev->mmio[n].memory = memory;
}
-void sysbus_init_mmio_region(SysBusDevice *dev, MemoryRegion *memory)
+MemoryRegion *sysbus_mmio_get_region(SysBusDevice *dev, int n)
{
- int n;
-
- assert(dev->num_mmio < QDEV_MAX_MMIO);
- n = dev->num_mmio++;
- dev->mmio[n].addr = -1;
- dev->mmio[n].size = memory_region_size(memory);
- dev->mmio[n].memory = memory;
+ return dev->mmio[n].memory;
}
void sysbus_init_ioports(SysBusDevice *dev, pio_addr_t ioport, pio_addr_t size)
}
}
-static int sysbus_device_init(DeviceState *dev, DeviceInfo *base)
+static int sysbus_device_init(DeviceState *dev)
{
- SysBusDeviceInfo *info = container_of(base, SysBusDeviceInfo, qdev);
+ SysBusDevice *sd = SYS_BUS_DEVICE(dev);
+ SysBusDeviceClass *sbc = SYS_BUS_DEVICE_GET_CLASS(sd);
- return info->init(sysbus_from_qdev(dev));
-}
-
-void sysbus_register_withprop(SysBusDeviceInfo *info)
-{
- info->qdev.init = sysbus_device_init;
- info->qdev.bus_info = &system_bus_info;
-
- assert(info->qdev.size >= sizeof(SysBusDevice));
- qdev_register(&info->qdev);
-}
-
-void sysbus_register_dev(const char *name, size_t size, sysbus_initfn init)
-{
- SysBusDeviceInfo *info;
-
- info = g_malloc0(sizeof(*info));
- info->qdev.name = g_strdup(name);
- info->qdev.size = size;
- info->init = init;
- sysbus_register_withprop(info);
+ return sbc->init(sd);
}
DeviceState *sysbus_create_varargs(const char *name,
- target_phys_addr_t addr, ...)
+ hwaddr addr, ...)
{
DeviceState *dev;
SysBusDevice *s;
int n;
dev = qdev_create(NULL, name);
- s = sysbus_from_qdev(dev);
+ s = SYS_BUS_DEVICE(dev);
qdev_init_nofail(dev);
- if (addr != (target_phys_addr_t)-1) {
+ if (addr != (hwaddr)-1) {
sysbus_mmio_map(s, 0, addr);
}
va_start(va, addr);
sysbus_connect_irq(s, n, irq);
n++;
}
+ va_end(va);
return dev;
}
DeviceState *sysbus_try_create_varargs(const char *name,
- target_phys_addr_t addr, ...)
+ hwaddr addr, ...)
{
DeviceState *dev;
SysBusDevice *s;
if (!dev) {
return NULL;
}
- s = sysbus_from_qdev(dev);
+ s = SYS_BUS_DEVICE(dev);
qdev_init_nofail(dev);
- if (addr != (target_phys_addr_t)-1) {
+ if (addr != (hwaddr)-1) {
sysbus_mmio_map(s, 0, addr);
}
va_start(va, addr);
sysbus_connect_irq(s, n, irq);
n++;
}
+ va_end(va);
return dev;
}
static void sysbus_dev_print(Monitor *mon, DeviceState *dev, int indent)
{
- SysBusDevice *s = sysbus_from_qdev(dev);
+ SysBusDevice *s = SYS_BUS_DEVICE(dev);
+ hwaddr size;
int i;
monitor_printf(mon, "%*sirq %d\n", indent, "", s->num_irq);
for (i = 0; i < s->num_mmio; i++) {
+ size = memory_region_size(s->mmio[i].memory);
monitor_printf(mon, "%*smmio " TARGET_FMT_plx "/" TARGET_FMT_plx "\n",
- indent, "", s->mmio[i].addr, s->mmio[i].size);
+ indent, "", s->mmio[i].addr, size);
}
}
static char *sysbus_get_fw_dev_path(DeviceState *dev)
{
- SysBusDevice *s = sysbus_from_qdev(dev);
+ SysBusDevice *s = SYS_BUS_DEVICE(dev);
char path[40];
int off;
snprintf(path + off, sizeof(path) - off, "@i%04x", s->pio[0]);
}
- return strdup(path);
+ return g_strdup(path);
}
+
+void sysbus_add_memory(SysBusDevice *dev, hwaddr addr,
+ MemoryRegion *mem)
+{
+ memory_region_add_subregion(get_system_memory(), addr, mem);
+}
+
+void sysbus_add_memory_overlap(SysBusDevice *dev, hwaddr addr,
+ MemoryRegion *mem, unsigned priority)
+{
+ memory_region_add_subregion_overlap(get_system_memory(), addr, mem,
+ priority);
+}
+
+void sysbus_del_memory(SysBusDevice *dev, MemoryRegion *mem)
+{
+ memory_region_del_subregion(get_system_memory(), mem);
+}
+
+void sysbus_add_io(SysBusDevice *dev, hwaddr addr,
+ MemoryRegion *mem)
+{
+ memory_region_add_subregion(get_system_io(), addr, mem);
+}
+
+void sysbus_del_io(SysBusDevice *dev, MemoryRegion *mem)
+{
+ memory_region_del_subregion(get_system_io(), mem);
+}
+
+MemoryRegion *sysbus_address_space(SysBusDevice *dev)
+{
+ return get_system_memory();
+}
+
+static void sysbus_device_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *k = DEVICE_CLASS(klass);
+ k->init = sysbus_device_init;
+ k->bus_type = TYPE_SYSTEM_BUS;
+}
+
+static const TypeInfo sysbus_device_type_info = {
+ .name = TYPE_SYS_BUS_DEVICE,
+ .parent = TYPE_DEVICE,
+ .instance_size = sizeof(SysBusDevice),
+ .abstract = true,
+ .class_size = sizeof(SysBusDeviceClass),
+ .class_init = sysbus_device_class_init,
+};
+
+/* This is a nasty hack to allow passing a NULL bus to qdev_create. */
+static BusState *main_system_bus;
+
+static void main_system_bus_create(void)
+{
+ /* assign main_system_bus before qbus_create_inplace()
+ * in order to make "if (bus != sysbus_get_default())" work */
+ main_system_bus = g_malloc0(system_bus_info.instance_size);
+ qbus_create_inplace(main_system_bus, TYPE_SYSTEM_BUS, NULL,
+ "main-system-bus");
+ OBJECT(main_system_bus)->free = g_free;
+ object_property_add_child(container_get(qdev_get_machine(),
+ "/unattached"),
+ "sysbus", OBJECT(main_system_bus), NULL);
+}
+
+BusState *sysbus_get_default(void)
+{
+ if (!main_system_bus) {
+ main_system_bus_create();
+ }
+ return main_system_bus;
+}
+
+static void sysbus_register_types(void)
+{
+ type_register_static(&system_bus_info);
+ type_register_static(&sysbus_device_type_info);
+}
+
+type_init(sysbus_register_types)
projects / qemu.git / blobdiff