1 files changed, 54 insertions, 0 deletions
diff --git a/src/arch/x86/include/arch/io.h b/src/arch/x86/include/arch/io.h
index 0d1cadfb28..1ab69966a8 100644
--- a/src/arch/x86/include/arch/io.h
+++ b/src/arch/x86/include/arch/io.h
@@ -246,6 +246,60 @@ typedef u32 device_t;
 #include <arch/pci_io_cfg.h>
 #include <arch/pci_mmio_cfg.h>
 
+static inline __attribute__((always_inline))
+uint8_t pci_read_config8(pci_devfn_t dev, unsigned int where)
+{
+	if (IS_ENABLED(CONFIG_MMCONF_SUPPORT_DEFAULT))
+		return pci_mmio_read_config8(dev, where);
+	else
+		return pci_io_read_config8(dev, where);
+}
+
+static inline __attribute__((always_inline))
+uint16_t pci_read_config16(pci_devfn_t dev, unsigned int where)
+{
+	if (IS_ENABLED(CONFIG_MMCONF_SUPPORT_DEFAULT))
+		return pci_mmio_read_config16(dev, where);
+	else
+		return pci_io_read_config16(dev, where);
+}
+
+static inline __attribute__((always_inline))
+uint32_t pci_read_config32(pci_devfn_t dev, unsigned int where)
+{
+	if (IS_ENABLED(CONFIG_MMCONF_SUPPORT_DEFAULT))
+		return pci_mmio_read_config32(dev, where);
+	else
+		return pci_io_read_config32(dev, where);
+}
+
+static inline __attribute__((always_inline))
+void pci_write_config8(pci_devfn_t dev, unsigned int where, uint8_t value)
+{
+	if (IS_ENABLED(CONFIG_MMCONF_SUPPORT_DEFAULT))
+		pci_mmio_write_config8(dev, where, value);
+	else
+		pci_io_write_config8(dev, where, value);
+}
+
+static inline __attribute__((always_inline))
+void pci_write_config16(pci_devfn_t dev, unsigned int where, uint16_t value)
+{
+	if (IS_ENABLED(CONFIG_MMCONF_SUPPORT_DEFAULT))
+		pci_mmio_write_config16(dev, where, value);
+	else
+		pci_io_write_config16(dev, where, value);
+}
+
+static inline __attribute__((always_inline))
+void pci_write_config32(pci_devfn_t dev, unsigned where, uint32_t value)
+{
+	if (IS_ENABLED(CONFIG_MMCONF_SUPPORT_DEFAULT))
+		pci_mmio_write_config32(dev, where, value);
+	else
+		pci_io_write_config32(dev, where, value);
+}
+
 #define PCI_DEV_INVALID (0xffffffffU)
 static inline pci_devfn_t pci_io_locate_device(unsigned pci_id, pci_devfn_t dev)
 {