Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / ipxe / src / arch / x86 / include / ipxe / pcibios.h

diff --git a/qemu/roms/ipxe/src/arch/x86/include/ipxe/pcibios.h b/qemu/roms/ipxe/src/arch/x86/include/ipxe/pcibios.h
new file mode 100644 (file)
index 0000000..36af7fc
--- /dev/null
+++ b/qemu/roms/ipxe/src/arch/x86/include/ipxe/pcibios.h
@@ -0,0 +1,135 @@
+#ifndef _IPXE_PCIBIOS_H
+#define _IPXE_PCIBIOS_H
+
+#include <stdint.h>
+
+/** @file
+ *
+ * PCI configuration space access via PCI BIOS
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#ifdef PCIAPI_PCBIOS
+#define PCIAPI_PREFIX_pcbios
+#else
+#define PCIAPI_PREFIX_pcbios __pcbios_
+#endif
+
+struct pci_device;
+
+#define PCIBIOS_INSTALLATION_CHECK     0xb1010000
+#define PCIBIOS_READ_CONFIG_BYTE       0xb1080000
+#define PCIBIOS_READ_CONFIG_WORD       0xb1090000
+#define PCIBIOS_READ_CONFIG_DWORD      0xb10a0000
+#define PCIBIOS_WRITE_CONFIG_BYTE      0xb10b0000
+#define PCIBIOS_WRITE_CONFIG_WORD      0xb10c0000
+#define PCIBIOS_WRITE_CONFIG_DWORD     0xb10d0000
+
+extern int pcibios_read ( struct pci_device *pci, uint32_t command,
+                         uint32_t *value );
+extern int pcibios_write ( struct pci_device *pci, uint32_t command,
+                          uint32_t value );
+
+/**
+ * Read byte from PCI configuration space via PCI BIOS
+ *
+ * @v pci      PCI device
+ * @v where    Location within PCI configuration space
+ * @v value    Value read
+ * @ret rc     Return status code
+ */
+static inline __always_inline int
+PCIAPI_INLINE ( pcbios, pci_read_config_byte ) ( struct pci_device *pci,
+                                                unsigned int where,
+                                                uint8_t *value ) {
+       uint32_t tmp;
+       int rc;
+
+       rc = pcibios_read ( pci, PCIBIOS_READ_CONFIG_BYTE | where, &tmp );
+       *value = tmp;
+       return rc;
+}
+
+/**
+ * Read word from PCI configuration space via PCI BIOS
+ *
+ * @v pci      PCI device
+ * @v where    Location within PCI configuration space
+ * @v value    Value read
+ * @ret rc     Return status code
+ */
+static inline __always_inline int
+PCIAPI_INLINE ( pcbios, pci_read_config_word ) ( struct pci_device *pci,
+                                                unsigned int where,
+                                                uint16_t *value ) {
+       uint32_t tmp;
+       int rc;
+
+       rc = pcibios_read ( pci, PCIBIOS_READ_CONFIG_WORD | where, &tmp );
+       *value = tmp;
+       return rc;
+}
+
+/**
+ * Read dword from PCI configuration space via PCI BIOS
+ *
+ * @v pci      PCI device
+ * @v where    Location within PCI configuration space
+ * @v value    Value read
+ * @ret rc     Return status code
+ */
+static inline __always_inline int
+PCIAPI_INLINE ( pcbios, pci_read_config_dword ) ( struct pci_device *pci,
+                                                 unsigned int where,
+                                                 uint32_t *value ) {
+       return pcibios_read ( pci, PCIBIOS_READ_CONFIG_DWORD | where, value );
+}
+
+/**
+ * Write byte to PCI configuration space via PCI BIOS
+ *
+ * @v pci      PCI device
+ * @v where    Location within PCI configuration space
+ * @v value    Value to be written
+ * @ret rc     Return status code
+ */
+static inline __always_inline int
+PCIAPI_INLINE ( pcbios, pci_write_config_byte ) ( struct pci_device *pci,
+                                                 unsigned int where,
+                                                 uint8_t value ) {
+       return pcibios_write ( pci, PCIBIOS_WRITE_CONFIG_BYTE | where, value );
+}
+
+/**
+ * Write word to PCI configuration space via PCI BIOS
+ *
+ * @v pci      PCI device
+ * @v where    Location within PCI configuration space
+ * @v value    Value to be written
+ * @ret rc     Return status code
+ */
+static inline __always_inline int
+PCIAPI_INLINE ( pcbios, pci_write_config_word ) ( struct pci_device *pci,
+                                                 unsigned int where,
+                                                 uint16_t value ) {
+       return pcibios_write ( pci, PCIBIOS_WRITE_CONFIG_WORD | where, value );
+}
+
+/**
+ * Write dword to PCI configuration space via PCI BIOS
+ *
+ * @v pci      PCI device
+ * @v where    Location within PCI configuration space
+ * @v value    Value to be written
+ * @ret rc     Return status code
+ */
+static inline __always_inline int
+PCIAPI_INLINE ( pcbios, pci_write_config_dword ) ( struct pci_device *pci,
+                                                  unsigned int where,
+                                                  uint32_t value ) {
+       return pcibios_write ( pci, PCIBIOS_WRITE_CONFIG_DWORD | where, value);
+}
+
+#endif /* _IPXE_PCIBIOS_H */