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pci: pci bridge related clean up. 

- fix bridge prefetchable memory accesser to check 64bit or not.
- use pcibus_t consistently instead mixing pcibus_t and uint64_t.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Isaku Yamahata 2009-11-12 14:58:47 +09:00 committed by Michael S. Tsirkin
parent 10c9c329da
commit d46636b883
2 changed files with 12 additions and 7 deletions
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18
hw/pci.c
View File

@ -635,19 +635,23 @@ static uint32_t pci_config_get_io_base(PCIDevice *d,
return val;
}
static uint64_t pci_config_get_memory_base(PCIDevice *d, uint32_t base)
static pcibus_t pci_config_get_memory_base(PCIDevice *d, uint32_t base)
{
return ((uint64_t)pci_get_word(d->config + base) & PCI_MEMORY_RANGE_MASK)
return ((pcibus_t)pci_get_word(d->config + base) & PCI_MEMORY_RANGE_MASK)
<< 16;
}
static uint64_t pci_config_get_pref_base(PCIDevice *d,
static pcibus_t pci_config_get_pref_base(PCIDevice *d,
uint32_t base, uint32_t upper)
{
uint64_t val;
val = ((uint64_t)pci_get_word(d->config + base) &
PCI_PREF_RANGE_MASK) << 16;
val |= (uint64_t)pci_get_long(d->config + upper) << 32;
pcibus_t tmp;
pcibus_t val;
tmp = (pcibus_t)pci_get_word(d->config + base);
val = (tmp & PCI_PREF_RANGE_MASK) << 16;
if (tmp & PCI_PREF_RANGE_TYPE_64) {
val |= (pcibus_t)pci_get_long(d->config + upper) << 32;
}
return val;
}

1
hw/pci.h
View File

@ -131,6 +131,7 @@ typedef struct PCIIORegion {
#define PCI_PREF_MEMORY_BASE 0x24 /* Prefetchable memory range behind */
#define PCI_PREF_MEMORY_LIMIT 0x26
#define PCI_PREF_RANGE_MASK (~0x0fUL)
#define PCI_PREF_RANGE_TYPE_64 0x01
#define PCI_PREF_BASE_UPPER32 0x28 /* Upper half of prefetchable memory range */
#define PCI_PREF_LIMIT_UPPER32 0x2c
#define PCI_SUBSYSTEM_VENDOR_ID 0x2c /* 16 bits */