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hv: code clean-up in hw/pci.c

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* move `pci_pdev_calc_address` out of the spinlock in
   `pci_pdev_read_cfg`
 * remove the spaces before tabs
 * make the line not over 120 characters

Tracked-On: #861
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Shiqing Gao 2019-01-08 09:32:24 +08:00 committed by wenlingz
parent 2756ec740d
commit 2c6b43070b
1 changed files with 6 additions and 5 deletions
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7
hypervisor/hw/pci.c
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@ -49,10 +49,10 @@ uint32_t pci_pdev_read_cfg(union pci_bdf bdf, uint32_t offset, uint32_t bytes)
uint32_t addr; uint32_t addr;
uint32_t val; uint32_t val;
spinlock_obtain(&pci_device_lock);
addr = pci_pdev_calc_address(bdf, offset); addr = pci_pdev_calc_address(bdf, offset);
spinlock_obtain(&pci_device_lock);
/* Write address to ADDRESS register */ /* Write address to ADDRESS register */
pio_write32(addr, (uint16_t)PCI_CONFIG_ADDR); pio_write32(addr, (uint16_t)PCI_CONFIG_ADDR);
@ -171,7 +171,8 @@ void pci_scan_bus(pci_enumeration_cb cb_func, void *cb_data)
/* Secondary bus to be scanned */ /* Secondary bus to be scanned */
secondary_bus = (uint8_t)pci_pdev_read_cfg(pbdf, PCIR_SECBUS_1, 1U); secondary_bus = (uint8_t)pci_pdev_read_cfg(pbdf, PCIR_SECBUS_1, 1U);
if (bus_to_scan[secondary_bus] != BUS_SCAN_SKIP) { if (bus_to_scan[secondary_bus] != BUS_SCAN_SKIP) {
pr_err("%s, bus %d may be downstream of different PCI bridges", secondary_bus); pr_err("%s, bus %d may be downstream of different PCI bridges",
secondary_bus);
} else { } else {
bus_to_scan[secondary_bus] = BUS_SCAN_PENDING; bus_to_scan[secondary_bus] = BUS_SCAN_PENDING;
} }