Revision d587e078 hw/pci.c
| b/hw/pci.c | ||
|---|---|---|
| 518 | 518 |
dev->wmask[PCI_CACHE_LINE_SIZE] = 0xff; |
| 519 | 519 |
dev->wmask[PCI_INTERRUPT_LINE] = 0xff; |
| 520 | 520 |
pci_set_word(dev->wmask + PCI_COMMAND, |
| 521 |
PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER | |
|
| 522 |
PCI_COMMAND_INTX_DISABLE); |
|
| 521 |
PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER); |
|
| 523 | 522 |
|
| 524 | 523 |
memset(dev->wmask + PCI_CONFIG_HEADER_SIZE, 0xff, |
| 525 | 524 |
config_size - PCI_CONFIG_HEADER_SIZE); |
| ... | ... | |
| 944 | 943 |
} |
| 945 | 944 |
} |
| 946 | 945 |
|
| 947 |
static inline int pci_irq_disabled(PCIDevice *d) |
|
| 948 |
{
|
|
| 949 |
return pci_get_word(d->config + PCI_COMMAND) & PCI_COMMAND_INTX_DISABLE; |
|
| 950 |
} |
|
| 951 |
|
|
| 952 |
/* Called after interrupt disabled field update in config space, |
|
| 953 |
* assert/deassert interrupts if necessary. |
|
| 954 |
* Gets original interrupt disable bit value (before update). */ |
|
| 955 |
static void pci_update_irq_disabled(PCIDevice *d, int was_irq_disabled) |
|
| 956 |
{
|
|
| 957 |
int i, disabled = pci_irq_disabled(d); |
|
| 958 |
if (disabled == was_irq_disabled) |
|
| 959 |
return; |
|
| 960 |
for (i = 0; i < PCI_NUM_PINS; ++i) {
|
|
| 961 |
int state = pci_irq_state(d, i); |
|
| 962 |
pci_change_irq_level(d, i, disabled ? -state : state); |
|
| 963 |
} |
|
| 964 |
} |
|
| 965 |
|
|
| 966 | 946 |
uint32_t pci_default_read_config(PCIDevice *d, |
| 967 | 947 |
uint32_t address, int len) |
| 968 | 948 |
{
|
| ... | ... | |
| 975 | 955 |
|
| 976 | 956 |
void pci_default_write_config(PCIDevice *d, uint32_t addr, uint32_t val, int l) |
| 977 | 957 |
{
|
| 978 |
int i, was_irq_disabled = pci_irq_disabled(d);
|
|
| 958 |
int i; |
|
| 979 | 959 |
uint32_t config_size = pci_config_size(d); |
| 980 | 960 |
|
| 981 | 961 |
for (i = 0; i < l && addr + i < config_size; val >>= 8, ++i) {
|
| ... | ... | |
| 987 | 967 |
ranges_overlap(addr, l, PCI_ROM_ADDRESS1, 4) || |
| 988 | 968 |
range_covers_byte(addr, l, PCI_COMMAND)) |
| 989 | 969 |
pci_update_mappings(d); |
| 990 |
|
|
| 991 |
if (range_covers_byte(addr, l, PCI_COMMAND)) |
|
| 992 |
pci_update_irq_disabled(d, was_irq_disabled); |
|
| 993 | 970 |
} |
| 994 | 971 |
|
| 995 | 972 |
/***********************************************************/ |
| ... | ... | |
| 1007 | 984 |
|
| 1008 | 985 |
pci_set_irq_state(pci_dev, irq_num, level); |
| 1009 | 986 |
pci_update_irq_status(pci_dev); |
| 1010 |
if (pci_irq_disabled(pci_dev)) |
|
| 1011 |
return; |
|
| 1012 | 987 |
pci_change_irq_level(pci_dev, irq_num, change); |
| 1013 | 988 |
} |
| 1014 | 989 |
|
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