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hw/sysbus: Inline and remove sysbus_add_io()

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sysbus_add_io(...) is a simple wrapper to
memory_region_add_subregion(get_system_io(), ...).
It is used in 3 places; inline it directly.

Rationale: we want to move to an explicit I/O bus,
rather that an implicit one. Besides in heterogeneous
setup we can have more than one I/O bus.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20240216150441.45681-1-philmd@linaro.org>
[PMD: Include missing "exec/address-spaces.h" header]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
This commit is contained in:
Philippe Mathieu-Daudé 2023-09-22 15:06:59 +02:00
parent 40f27a785f
commit 0068b069c3
5 changed files with 8 additions and 12 deletions
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6
hw/core/sysbus.c
View file

@ -298,12 +298,6 @@ static char *sysbus_get_fw_dev_path(DeviceState *dev)
return g_strdup(qdev_fw_name(dev));
}
void sysbus_add_io(SysBusDevice *dev, hwaddr addr,
MemoryRegion *mem)
{
memory_region_add_subregion(get_system_io(), addr, mem);
}
MemoryRegion *sysbus_address_space(SysBusDevice *dev)
{
return get_system_memory();

3
hw/i386/kvmvapic.c
View file

@ -16,6 +16,7 @@
#include "sysemu/hw_accel.h"
#include "sysemu/kvm.h"
#include "sysemu/runstate.h"
#include "exec/address-spaces.h"
#include "hw/i386/apic_internal.h"
#include "hw/sysbus.h"
#include "hw/boards.h"
@ -727,7 +728,7 @@ static void vapic_realize(DeviceState *dev, Error **errp)
VAPICROMState *s = VAPIC(dev);
memory_region_init_io(&s->io, OBJECT(s), &vapic_ops, s, "kvmvapic", 2);
sysbus_add_io(sbd, VAPIC_IO_PORT, &s->io);
memory_region_add_subregion(get_system_io(), VAPIC_IO_PORT, &s->io);
sysbus_init_ioports(sbd, VAPIC_IO_PORT, 2);
option_rom[nb_option_roms].name = "kvmvapic.bin";

3
hw/mips/mipssim.c
View file

@ -28,6 +28,7 @@
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "qemu/datadir.h"
#include "exec/address-spaces.h"
#include "hw/clock.h"
#include "hw/mips/mips.h"
#include "hw/char/serial.h"
@ -226,7 +227,7 @@ mips_mipssim_init(MachineState *machine)
qdev_prop_set_uint8(dev, "endianness", DEVICE_LITTLE_ENDIAN);
sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, env->irq[4]);
sysbus_add_io(SYS_BUS_DEVICE(dev), 0x3f8,
memory_region_add_subregion(get_system_io(), 0x3f8,
sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0));
}

6
hw/nvram/fw_cfg.c
View file

@ -27,6 +27,7 @@
#include "sysemu/sysemu.h"
#include "sysemu/dma.h"
#include "sysemu/reset.h"
#include "exec/address-spaces.h"
#include "hw/boards.h"
#include "hw/nvram/fw_cfg.h"
#include "hw/qdev-properties.h"
@ -1142,6 +1143,7 @@ FWCfgState *fw_cfg_init_io_dma(uint32_t iobase, uint32_t dma_iobase,
SysBusDevice *sbd;
FWCfgIoState *ios;
FWCfgState *s;
MemoryRegion *iomem = get_system_io();
bool dma_requested = dma_iobase && dma_as;
dev = qdev_new(TYPE_FW_CFG_IO);
@ -1155,7 +1157,7 @@ FWCfgState *fw_cfg_init_io_dma(uint32_t iobase, uint32_t dma_iobase,
sbd = SYS_BUS_DEVICE(dev);
sysbus_realize_and_unref(sbd, &error_fatal);
ios = FW_CFG_IO(dev);
sysbus_add_io(sbd, iobase, &ios->comb_iomem);
memory_region_add_subregion(iomem, iobase, &ios->comb_iomem);
s = FW_CFG(dev);
@ -1163,7 +1165,7 @@ FWCfgState *fw_cfg_init_io_dma(uint32_t iobase, uint32_t dma_iobase,
/* 64 bits for the address field */
s->dma_as = dma_as;
s->dma_addr = 0;
sysbus_add_io(sbd, dma_iobase, &s->dma_iomem);
memory_region_add_subregion(iomem, dma_iobase, &s->dma_iomem);
}
return s;

2
include/hw/sysbus.h
View file

@ -83,8 +83,6 @@ void sysbus_mmio_map(SysBusDevice *dev, int n, hwaddr addr);
void sysbus_mmio_map_overlap(SysBusDevice *dev, int n, hwaddr addr,
int priority);
void sysbus_mmio_unmap(SysBusDevice *dev, int n);
void sysbus_add_io(SysBusDevice *dev, hwaddr addr,
MemoryRegion *mem);
MemoryRegion *sysbus_address_space(SysBusDevice *dev);
bool sysbus_realize(SysBusDevice *dev, Error **errp);