Revision a2d33521 memory.c
| b/memory.c | ||
|---|---|---|
| 382 | 382 |
unsigned width, |
| 383 | 383 |
uint64_t *data) |
| 384 | 384 |
{
|
| 385 |
MemoryRegion *mr = container_of(iorange, MemoryRegion, iorange); |
|
| 385 |
MemoryRegionIORange *mrio |
|
| 386 |
= container_of(iorange, MemoryRegionIORange, iorange); |
|
| 387 |
MemoryRegion *mr = mrio->mr; |
|
| 386 | 388 |
|
| 389 |
offset += mrio->offset; |
|
| 387 | 390 |
if (mr->ops->old_portio) {
|
| 388 |
const MemoryRegionPortio *mrp = find_portio(mr, offset, width, false); |
|
| 391 |
const MemoryRegionPortio *mrp = find_portio(mr, offset - mrio->offset, |
|
| 392 |
width, false); |
|
| 389 | 393 |
|
| 390 | 394 |
*data = ((uint64_t)1 << (width * 8)) - 1; |
| 391 | 395 |
if (mrp) {
|
| 392 | 396 |
*data = mrp->read(mr->opaque, offset); |
| 393 | 397 |
} else if (width == 2) {
|
| 394 |
mrp = find_portio(mr, offset, 1, false); |
|
| 398 |
mrp = find_portio(mr, offset - mrio->offset, 1, false);
|
|
| 395 | 399 |
assert(mrp); |
| 396 | 400 |
*data = mrp->read(mr->opaque, offset) | |
| 397 | 401 |
(mrp->read(mr->opaque, offset + 1) << 8); |
| ... | ... | |
| 410 | 414 |
unsigned width, |
| 411 | 415 |
uint64_t data) |
| 412 | 416 |
{
|
| 413 |
MemoryRegion *mr = container_of(iorange, MemoryRegion, iorange); |
|
| 417 |
MemoryRegionIORange *mrio |
|
| 418 |
= container_of(iorange, MemoryRegionIORange, iorange); |
|
| 419 |
MemoryRegion *mr = mrio->mr; |
|
| 414 | 420 |
|
| 421 |
offset += mrio->offset; |
|
| 415 | 422 |
if (mr->ops->old_portio) {
|
| 416 |
const MemoryRegionPortio *mrp = find_portio(mr, offset, width, true); |
|
| 423 |
const MemoryRegionPortio *mrp = find_portio(mr, offset - mrio->offset, |
|
| 424 |
width, true); |
|
| 417 | 425 |
|
| 418 | 426 |
if (mrp) {
|
| 419 | 427 |
mrp->write(mr->opaque, offset, data); |
| 420 | 428 |
} else if (width == 2) {
|
| 421 |
mrp = find_portio(mr, offset, 1, false); |
|
| 429 |
mrp = find_portio(mr, offset - mrio->offset, 1, false);
|
|
| 422 | 430 |
assert(mrp); |
| 423 | 431 |
mrp->write(mr->opaque, offset, data & 0xff); |
| 424 | 432 |
mrp->write(mr->opaque, offset + 1, data >> 8); |
| ... | ... | |
| 431 | 439 |
memory_region_write_accessor, mr); |
| 432 | 440 |
} |
| 433 | 441 |
|
| 442 |
static void memory_region_iorange_destructor(IORange *iorange) |
|
| 443 |
{
|
|
| 444 |
g_free(container_of(iorange, MemoryRegionIORange, iorange)); |
|
| 445 |
} |
|
| 446 |
|
|
| 434 | 447 |
const IORangeOps memory_region_iorange_ops = {
|
| 435 | 448 |
.read = memory_region_iorange_read, |
| 436 | 449 |
.write = memory_region_iorange_write, |
| 450 |
.destructor = memory_region_iorange_destructor, |
|
| 437 | 451 |
}; |
| 438 | 452 |
|
| 439 | 453 |
static AddressSpace address_space_io; |
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