Add qemu 2.4.0

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

diff --git a/qemu/roms/ipxe/src/arch/x86/include/ipxe/pcidirect.h b/qemu/roms/ipxe/src/arch/x86/include/ipxe/pcidirect.h
new file mode 100644 (file)
index 0000000..7fa7c4f
--- /dev/null
+++ b/qemu/roms/ipxe/src/arch/x86/include/ipxe/pcidirect.h
@@ -0,0 +1,141 @@
+#ifndef _PCIDIRECT_H
+#define _PCIDIRECT_H
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <stdint.h>
+#include <ipxe/io.h>
+
+#ifdef PCIAPI_DIRECT
+#define PCIAPI_PREFIX_direct
+#else
+#define PCIAPI_PREFIX_direct __direct_
+#endif
+
+/** @file
+ *
+ * PCI configuration space access via Type 1 accesses
+ *
+ */
+
+#define PCIDIRECT_CONFIG_ADDRESS       0xcf8
+#define PCIDIRECT_CONFIG_DATA          0xcfc
+
+struct pci_device;
+
+extern void pcidirect_prepare ( struct pci_device *pci, int where );
+
+/**
+ * Determine number of PCI buses within system
+ *
+ * @ret num_bus                Number of buses
+ */
+static inline __always_inline int
+PCIAPI_INLINE ( direct, pci_num_bus ) ( void ) {
+       /* No way to work this out via Type 1 accesses */
+       return 0x100;
+}
+
+/**
+ * Read byte from PCI configuration space via Type 1 access
+ *
+ * @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 ( direct, pci_read_config_byte ) ( struct pci_device *pci,
+                                                unsigned int where,
+                                                uint8_t *value ) {
+       pcidirect_prepare ( pci, where );
+       *value = inb ( PCIDIRECT_CONFIG_DATA + ( where & 3 ) );
+       return 0;
+}
+
+/**
+ * Read word from PCI configuration space via Type 1 access
+ *
+ * @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 ( direct, pci_read_config_word ) ( struct pci_device *pci,
+                                                unsigned int where,
+                                                uint16_t *value ) {
+       pcidirect_prepare ( pci, where );
+       *value = inw ( PCIDIRECT_CONFIG_DATA + ( where & 2 ) );
+       return 0;
+}
+
+/**
+ * Read dword from PCI configuration space via Type 1 access
+ *
+ * @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 ( direct, pci_read_config_dword ) ( struct pci_device *pci,
+                                                 unsigned int where,
+                                                 uint32_t *value ) {
+       pcidirect_prepare ( pci, where );
+       *value = inl ( PCIDIRECT_CONFIG_DATA );
+       return 0;
+}
+
+/**
+ * Write byte to PCI configuration space via Type 1 access
+ *
+ * @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 ( direct, pci_write_config_byte ) ( struct pci_device *pci,
+                                                 unsigned int where,
+                                                 uint8_t value ) {
+       pcidirect_prepare ( pci, where );
+       outb ( value, PCIDIRECT_CONFIG_DATA + ( where & 3 ) );
+       return 0;
+}
+
+/**
+ * Write word to PCI configuration space via Type 1 access
+ *
+ * @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 ( direct, pci_write_config_word ) ( struct pci_device *pci,
+                                                 unsigned int where,
+                                                 uint16_t value ) {
+       pcidirect_prepare ( pci, where );
+       outw ( value, PCIDIRECT_CONFIG_DATA + ( where & 2 ) );
+       return 0;
+}
+
+/**
+ * Write dword to PCI configuration space via Type 1 access
+ *
+ * @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 ( direct, pci_write_config_dword ) ( struct pci_device *pci,
+                                                  unsigned int where,
+                                                  uint32_t value ) {
+       pcidirect_prepare ( pci, where );
+       outl ( value, PCIDIRECT_CONFIG_DATA );
+       return 0;
+}
+
+#endif /* _PCIDIRECT_H */