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vga: convert vga and its derivatives to the memory API

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Convert all vga memory to the memory API.  Note we need to fall back to
get_system_memory(), since the various buses don't pass the vga window
as a memory region.

We no longer need to sync the dirty bitmap of the cirrus mapped memory
banks, since the memory API takes care of that for us.

[jan: fix vga-pci logging]

Reviewed-by: Richard Henderson <rth@twiddle.net>
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 16:08:57 +03:00 • committed by Anthony Liguori
parent 7b619b9ae5
commit b195043003
10 changed files with 440 additions and 438 deletions
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46
hw/vga-isa-mm.c
View file

@ -27,6 +27,7 @@
#include "vga_int.h"
#include "pixel_ops.h"
#include "qemu-timer.h"
#include "exec-memory.h"
typedef struct ISAVGAMMState {
VGACommonState vga;
@ -79,35 +80,44 @@ static void vga_mm_writel (void *opaque,
vga_ioport_write(&s->vga, addr >> s->it_shift, value);
}
static CPUReadMemoryFunc * const vga_mm_read_ctrl[] = {
&vga_mm_readb,
&vga_mm_readw,
&vga_mm_readl,
};
static CPUWriteMemoryFunc * const vga_mm_write_ctrl[] = {
&vga_mm_writeb,
&vga_mm_writew,
&vga_mm_writel,
static const MemoryRegionOps vga_mm_ctrl_ops = {
.old_mmio = {
.read = {
vga_mm_readb,
vga_mm_readw,
vga_mm_readl,
},
.write = {
vga_mm_writeb,
vga_mm_writew,
vga_mm_writel,
},
},
.endianness = DEVICE_NATIVE_ENDIAN,
};
static void vga_mm_init(ISAVGAMMState *s, target_phys_addr_t vram_base,
target_phys_addr_t ctrl_base, int it_shift)
{
int s_ioport_ctrl, vga_io_memory;
MemoryRegion *s_ioport_ctrl, *vga_io_memory;
s->it_shift = it_shift;
s_ioport_ctrl = cpu_register_io_memory(vga_mm_read_ctrl, vga_mm_write_ctrl, s,
DEVICE_NATIVE_ENDIAN);
vga_io_memory = cpu_register_io_memory(vga_mem_read, vga_mem_write, s,
DEVICE_NATIVE_ENDIAN);
s_ioport_ctrl = qemu_malloc(sizeof(*s_ioport_ctrl));
memory_region_init_io(s_ioport_ctrl, &vga_mm_ctrl_ops, s,
"vga-mm-ctrl", 0x100000);
vga_io_memory = qemu_malloc(sizeof(*vga_io_memory));
/* XXX: endianness? */
memory_region_init_io(vga_io_memory, &vga_mem_ops, &s->vga,
"vga-mem", 0x20000);
vmstate_register(NULL, 0, &vmstate_vga_common, s);
cpu_register_physical_memory(ctrl_base, 0x100000, s_ioport_ctrl);
memory_region_add_subregion(get_system_memory(), ctrl_base, s_ioport_ctrl);
s->vga.bank_offset = 0;
cpu_register_physical_memory(vram_base + 0x000a0000, 0x20000, vga_io_memory);
qemu_register_coalesced_mmio(vram_base + 0x000a0000, 0x20000);
memory_region_add_subregion(get_system_memory(),
vram_base + 0x000a0000, vga_io_memory);
memory_region_set_coalescing(vga_io_memory);
}
int isa_vga_mm_init(target_phys_addr_t vram_base,