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-rw-r--r--payloads/libpayload/include/pci.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/payloads/libpayload/include/pci.h b/payloads/libpayload/include/pci.h
index bcc333ce9e..1b51f8cd78 100644
--- a/payloads/libpayload/include/pci.h
+++ b/payloads/libpayload/include/pci.h
@@ -49,6 +49,7 @@ typedef u32 pcidev_t;
#define PCI_DEV(_bus, _dev, _fn) \
(0x80000000 | (_bus << 16) | (_dev << 11) | (_fn << 8))
+#define PCI_BUS(_d) ((_d >> 16) & 0xff)
#define PCI_SLOT(_d) ((_d >> 11) & 0x1f)
#define PCI_FUNC(_d) ((_d >> 8) & 0x7)