diff options
Diffstat (limited to 'hw/pcie_host.c')
| -rw-r--r-- | hw/pcie_host.c | 31 |
1 files changed, 8 insertions, 23 deletions
diff --git a/hw/pcie_host.c b/hw/pcie_host.c index b52fec6813..fbd6c3759f 100644 --- a/hw/pcie_host.c +++ b/hw/pcie_host.c @@ -46,7 +46,8 @@ /* a helper function to get a PCIDevice for a given mmconfig address */ -static inline PCIDevice *pcie_mmcfg_addr_to_dev(PCIBus *s, uint32_t mmcfg_addr) +static inline PCIDevice *pcie_dev_find_by_mmcfg_addr(PCIBus *s, + uint32_t mmcfg_addr) { return pci_find_device(s, PCIE_MMCFG_BUS(mmcfg_addr), PCI_SLOT(PCIE_MMCFG_DEVFN(mmcfg_addr)), @@ -56,7 +57,7 @@ static inline PCIDevice *pcie_mmcfg_addr_to_dev(PCIBus *s, uint32_t mmcfg_addr) static void pcie_mmcfg_data_write(PCIBus *s, uint32_t mmcfg_addr, uint32_t val, int len) { - PCIDevice *pci_dev = pcie_mmcfg_addr_to_dev(s, mmcfg_addr); + PCIDevice *pci_dev = pcie_dev_find_by_mmcfg_addr(s, mmcfg_addr); if (!pci_dev) return; @@ -65,31 +66,15 @@ static void pcie_mmcfg_data_write(PCIBus *s, PCIE_MMCFG_CONFOFFSET(mmcfg_addr), val, len); } -static uint32_t pcie_mmcfg_data_read(PCIBus *s, - uint32_t mmcfg_addr, int len) +static uint32_t pcie_mmcfg_data_read(PCIBus *s, uint32_t addr, int len) { - PCIDevice *pci_dev = pcie_mmcfg_addr_to_dev(s, mmcfg_addr); - uint32_t val; + PCIDevice *pci_dev = pcie_dev_find_by_mmcfg_addr(s, addr); + assert(len == 1 || len == 2 || len == 4); 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, - PCIE_MMCFG_CONFOFFSET(mmcfg_addr), len); + return ~0x0; } - - return val; + return pci_dev->config_read(pci_dev, PCIE_MMCFG_CONFOFFSET(addr), len); } static void pcie_mmcfg_data_writeb(void *opaque, |