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authorYang Zhang <yang.z.zhang@intel.com>2015-08-28 09:58:54 +0800
committerYang Zhang <yang.z.zhang@intel.com>2015-09-01 12:44:00 +0800
commite44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch)
tree66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/openbios/include/arch/amd64/pci.h
parent9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff)
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/openbios/include/arch/amd64/pci.h')
-rw-r--r--qemu/roms/openbios/include/arch/amd64/pci.h66
1 files changed, 66 insertions, 0 deletions
diff --git a/qemu/roms/openbios/include/arch/amd64/pci.h b/qemu/roms/openbios/include/arch/amd64/pci.h
new file mode 100644
index 000000000..3e88e150b
--- /dev/null
+++ b/qemu/roms/openbios/include/arch/amd64/pci.h
@@ -0,0 +1,66 @@
+#ifndef AMD64_PCI_H
+#define AMD64_PCI_H
+
+#include "asm/io.h"
+
+#if !(defined(PCI_CONFIG_1) || defined(PCI_CONFIG_2))
+#define PCI_CONFIG_1 1 /* default */
+#endif
+
+#ifdef PCI_CONFIG_1
+
+/* PCI Configuration Mechanism #1 */
+
+/* Have pci_addr in the same format as the values written to 0xcf8
+ * so register accesses can be made easy. */
+#define PCI_ADDR(bus, dev, fn) \
+ ((pci_addr) (0x80000000u \
+ | (uint32_t) (bus) << 16 \
+ | (uint32_t) (dev) << 11 \
+ | (uint32_t) (fn) << 8))
+
+#define PCI_BUS(pcidev) ((uint8_t) ((pcidev) >> 16))
+#define PCI_DEV(pcidev) ((uint8_t) ((pcidev) >> 11) & 0x1f)
+#define PCI_FN(pcidev) ((uint8_t) ((pcidev) >> 8) & 7)
+
+static inline uint8_t pci_config_read8(pci_addr dev, uint8_t reg)
+{
+ outl(dev | (reg & ~3), 0xcf8);
+ return inb(0xcfc | (reg & 3));
+}
+
+static inline uint16_t pci_config_read16(pci_addr dev, uint8_t reg)
+{
+ outl(dev | (reg & ~3), 0xcf8);
+ return inw(0xcfc | (reg & 2));
+}
+
+static inline uint32_t pci_config_read32(pci_addr dev, uint8_t reg)
+{
+ outl(dev | reg, 0xcf8);
+ return inl(0xcfc | reg);
+}
+
+static inline void pci_config_write8(pci_addr dev, uint8_t reg, uint8_t val)
+{
+ outl(dev | (reg & ~3), 0xcf8);
+ outb(val, 0xcfc | (reg & 3));
+}
+
+static inline void pci_config_write16(pci_addr dev, uint8_t reg, uint16_t val)
+{
+ outl(dev | (reg & ~3), 0xcf8);
+ outw(val, 0xcfc | (reg & 2));
+}
+
+static inline void pci_config_write32(pci_addr dev, uint8_t reg, uint32_t val)
+{
+ outl(dev | reg, 0xcf8);
+ outl(val, 0xcfc);
+}
+
+#else /* !PCI_CONFIG_1 */
+#error PCI Configuration Mechanism is not specified or implemented
+#endif
+
+#endif /* AMD64_PCI_H */