diff options
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/pci.c | 67 | ||||
| -rw-r--r-- | hw/pci_host.c | 63 |
2 files changed, 63 insertions, 67 deletions
@@ -663,73 +663,6 @@ void pci_default_write_config(PCIDevice *d, uint32_t addr, uint32_t val, int l) pci_update_mappings(d); } -static inline PCIDevice *pci_addr_to_dev(PCIBus *bus, uint32_t addr) -{ - uint8_t bus_num = (addr >> 16) & 0xff; - uint8_t devfn = (addr >> 8) & 0xff; - return pci_find_device(bus, bus_num, PCI_SLOT(devfn), PCI_FUNC(devfn)); -} - -static inline int pci_addr_to_config(uint32_t addr) -{ - return addr & (PCI_CONFIG_SPACE_SIZE - 1); -} - -void pci_data_write(void *opaque, uint32_t addr, uint32_t val, int len) -{ - PCIBus *s = opaque; - PCIDevice *pci_dev; - int config_addr; - -#if 0 - PCI_DPRINTF("pci_data_write: addr=%08x val=%08x len=%d\n", - addr, val, len); -#endif - pci_dev = pci_addr_to_dev(s, addr); - if (!pci_dev) - return; - config_addr = addr & 0xff; - config_addr = pci_addr_to_config(addr); - PCI_DPRINTF("pci_config_write: %s: addr=%02x val=%08x len=%d\n", - pci_dev->name, config_addr, val, len); - pci_dev->config_write(pci_dev, config_addr, val, len); -} - -uint32_t pci_data_read(void *opaque, uint32_t addr, int len) -{ - PCIBus *s = opaque; - PCIDevice *pci_dev; - int config_addr; - uint32_t val; - - pci_dev = pci_addr_to_dev(s, addr); - if (!pci_dev) { - switch(len) { - case 1: - val = 0xff; - break; - case 2: - val = 0xffff; - break; - default: - case 4: - val = 0xffffffff; - break; - } - goto the_end; - } - config_addr = pci_addr_to_config(addr); - val = pci_dev->config_read(pci_dev, config_addr, len); - PCI_DPRINTF("pci_config_read: %s: addr=%02x val=%08x len=%d\n", - pci_dev->name, config_addr, val, len); - the_end: -#if 0 - PCI_DPRINTF("pci_data_read: addr=%08x val=%08x len=%d\n", - addr, val, len); -#endif - return val; -} - /***********************************************************/ /* generic PCI irq support */ diff --git a/hw/pci_host.c b/hw/pci_host.c index 6009e376b4..351ade4649 100644 --- a/hw/pci_host.c +++ b/hw/pci_host.c @@ -32,6 +32,69 @@ do { printf("pci_host_data: " fmt , ## __VA_ARGS__); } while (0) #define PCI_DPRINTF(fmt, ...) #endif +/* + * PCI address + * bit 16 - 24: bus number + * bit 8 - 15: devfun number + * bit 0 - 7: offset in configuration space of a given pci device + */ + +/* the helper functio to get a PCIDeice* for a given pci address */ +static inline PCIDevice *pci_addr_to_dev(PCIBus *bus, uint32_t addr) +{ + uint8_t bus_num = (addr >> 16) & 0xff; + uint8_t devfn = (addr >> 8) & 0xff; + return pci_find_device(bus, bus_num, PCI_SLOT(devfn), PCI_FUNC(devfn)); +} + +static inline uint32_t pci_addr_to_config(uint32_t addr) +{ + return addr & (PCI_CONFIG_SPACE_SIZE - 1); +} + +void pci_data_write(void *opaque, uint32_t addr, uint32_t val, int len) +{ + PCIBus *s = opaque; + PCIDevice *pci_dev = pci_addr_to_dev(s, addr); + uint32_t config_addr = pci_addr_to_config(addr); + + if (!pci_dev) + return; + + PCI_DPRINTF("%s: %s: addr=%02"PRIx32" val=%08"PRI32x" len=%d\n", + __func__, pci_dev->name, config_addr, val, len); + pci_dev->config_write(pci_dev, config_addr, val, len); +} + +uint32_t pci_data_read(void *opaque, uint32_t addr, int len) +{ + PCIBus *s = opaque; + PCIDevice *pci_dev = pci_addr_to_dev(s, addr); + uint32_t config_addr = pci_addr_to_config(addr); + uint32_t val; + + if (!pci_dev) { + switch(len) { + case 1: + val = 0xff; + break; + case 2: + val = 0xffff; + break; + default: + case 4: + val = 0xffffffff; + break; + } + } else { + val = pci_dev->config_read(pci_dev, config_addr, len); + PCI_DPRINTF("%s: %s: addr=%02"PRIx32" val=%08"PRIx32" len=%d\n", + __func__, pci_dev->name, config_addr, val, len); + } + + return val; +} + static void pci_host_config_writel(void *opaque, target_phys_addr_t addr, uint32_t val) { |