haraldwolff/qemu-patch-raspberry4
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isa-mmio: convert to memory API

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Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Avi Kivity 2011-08-08 16:09:21 +03:00 committed by Anthony Liguori
parent d9c6ebd1c1
commit af956cadc3
2 changed files with 16 additions and 15 deletions
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2
hw/isa.h
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@ -4,6 +4,7 @@
/* ISA bus */
#include "ioport.h"
#include "memory.h"
#include "qdev.h"
typedef struct ISABus ISABus;
@ -37,6 +38,7 @@ ISADevice *isa_create_simple(const char *name);
extern target_phys_addr_t isa_mem_base;
void isa_mmio_setup(MemoryRegion *mr, target_phys_addr_t size);
void isa_mmio_init(target_phys_addr_t base, target_phys_addr_t size);
/* dma.c */

29
hw/isa_mmio.c
View file

@ -24,6 +24,7 @@
#include "hw.h"
#include "isa.h"
#include "exec-memory.h"
static void isa_mmio_writeb (void *opaque, target_phys_addr_t addr,
uint32_t val)
@ -58,25 +59,23 @@ static uint32_t isa_mmio_readl(void *opaque, target_phys_addr_t addr)
return cpu_inl(addr & IOPORTS_MASK);
}
static CPUWriteMemoryFunc * const isa_mmio_write[] = {
&isa_mmio_writeb,
&isa_mmio_writew,
&isa_mmio_writel,
static const MemoryRegionOps isa_mmio_ops = {
.old_mmio = {
.write = { isa_mmio_writeb, isa_mmio_writew, isa_mmio_writel },
.read = { isa_mmio_readb, isa_mmio_readw, isa_mmio_readl, },
},
.endianness = DEVICE_LITTLE_ENDIAN,
};
static CPUReadMemoryFunc * const isa_mmio_read[] = {
&isa_mmio_readb,
&isa_mmio_readw,
&isa_mmio_readl,
};
void isa_mmio_setup(MemoryRegion *mr, target_phys_addr_t size)
{
memory_region_init_io(mr, &isa_mmio_ops, NULL, "isa-mmio", size);
}
void isa_mmio_init(target_phys_addr_t base, target_phys_addr_t size)
{
int isa_mmio_iomemtype;
MemoryRegion *mr = qemu_malloc(sizeof(*mr));
isa_mmio_iomemtype = cpu_register_io_memory(isa_mmio_read,
isa_mmio_write,
NULL,
DEVICE_LITTLE_ENDIAN);
cpu_register_physical_memory(base, size, isa_mmio_iomemtype);
isa_mmio_setup(mr, size);
memory_region_add_subregion(get_system_memory(), base, mr);
}