haraldwolff/qemu-patch-raspberry4
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mips_r4k: convert to memory API

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Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Avi Kivity 2011-08-08 22:22:38 +03:00
parent 23ebf23dd1
commit 0ae164504e
1 changed files with 15 additions and 24 deletions
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39
hw/mips_r4k.c
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@ -42,8 +42,8 @@ static struct _loaderparams {
const char *initrd_filename;
} loaderparams;
static void mips_qemu_writel (void *opaque, target_phys_addr_t addr,
uint32_t val)
static void mips_qemu_write (void *opaque, target_phys_addr_t addr,
uint64_t val, unsigned size)
{
if ((addr & 0xffff) == 0 && val == 42)
qemu_system_reset_request ();
@ -51,25 +51,18 @@ static void mips_qemu_writel (void *opaque, target_phys_addr_t addr,
qemu_system_shutdown_request ();
}
static uint32_t mips_qemu_readl (void *opaque, target_phys_addr_t addr)
static uint64_t mips_qemu_read (void *opaque, target_phys_addr_t addr,
unsigned size)
{
return 0;
}
static CPUWriteMemoryFunc * const mips_qemu_write[] = {
&mips_qemu_writel,
&mips_qemu_writel,
&mips_qemu_writel,
static const MemoryRegionOps mips_qemu_ops = {
.read = mips_qemu_read,
.write = mips_qemu_write,
.endianness = DEVICE_NATIVE_ENDIAN,
};
static CPUReadMemoryFunc * const mips_qemu_read[] = {
&mips_qemu_readl,
&mips_qemu_readl,
&mips_qemu_readl,
};
static int mips_qemu_iomemtype = 0;
typedef struct ResetData {
CPUState *env;
uint64_t vector;
@ -163,8 +156,10 @@ void mips_r4k_init (ram_addr_t ram_size,
const char *initrd_filename, const char *cpu_model)
{
char *filename;
ram_addr_t ram_offset;
MemoryRegion *address_space_mem = get_system_memory();
MemoryRegion *ram = g_new(MemoryRegion, 1);
MemoryRegion *bios;
MemoryRegion *iomem = g_new(MemoryRegion, 1);
int bios_size;
CPUState *env;
ResetData *reset_info;
@ -199,16 +194,12 @@ void mips_r4k_init (ram_addr_t ram_size,
((unsigned int)ram_size / (1 << 20)));
exit(1);
}
ram_offset = qemu_ram_alloc(NULL, "mips_r4k.ram", ram_size);
memory_region_init_ram(ram, NULL, "mips_r4k.ram", ram_size);
cpu_register_physical_memory(0, ram_size, ram_offset | IO_MEM_RAM);
memory_region_add_subregion(address_space_mem, 0, ram);
if (!mips_qemu_iomemtype) {
mips_qemu_iomemtype = cpu_register_io_memory(mips_qemu_read,
mips_qemu_write, NULL,
DEVICE_NATIVE_ENDIAN);
}
cpu_register_physical_memory(0x1fbf0000, 0x10000, mips_qemu_iomemtype);
memory_region_init_io(iomem, &mips_qemu_ops, NULL, "mips-qemu", 0x10000);
memory_region_add_subregion(address_space_mem, 0x1fbf0000, iomem);
/* Try to load a BIOS image. If this fails, we continue regardless,
but initialize the hardware ourselves. When a kernel gets