X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=qemu%2Froms%2Fipxe%2Fsrc%2Finclude%2Fipxe%2Flinux%2Flinux_pci.h;fp=qemu%2Froms%2Fipxe%2Fsrc%2Finclude%2Fipxe%2Flinux%2Flinux_pci.h;h=43916673317cd55d4a6407a38ef2683cc503b081;hb=e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb;hp=0000000000000000000000000000000000000000;hpb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;p=kvmfornfv.git diff --git a/qemu/roms/ipxe/src/include/ipxe/linux/linux_pci.h b/qemu/roms/ipxe/src/include/ipxe/linux/linux_pci.h new file mode 100644 index 000000000..439166733 --- /dev/null +++ b/qemu/roms/ipxe/src/include/ipxe/linux/linux_pci.h @@ -0,0 +1,130 @@ +#ifndef _IPXE_LINUX_PCI_H +#define _IPXE_LINUX_PCI_H + +/** @file + * + * iPXE PCI API for Linux + * + */ + +FILE_LICENCE ( GPL2_OR_LATER ); + +#ifdef PCIAPI_LINUX +#define PCIAPI_PREFIX_linux +#else +#define PCIAPI_PREFIX_linux __linux_ +#endif + +struct pci_device; + +extern int linux_pci_read ( struct pci_device *pci, unsigned long where, + unsigned long *value, size_t len ); +extern int linux_pci_write ( struct pci_device *pci, unsigned long where, + unsigned long value, size_t len ); + +/** + * Read byte from PCI configuration space + * + * @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 ( linux, pci_read_config_byte ) ( struct pci_device *pci, + unsigned int where, + uint8_t *value ) { + int rc; + unsigned long tmp; + + rc = linux_pci_read ( pci, where, &tmp, sizeof ( *value ) ); + *value = tmp; + return rc; +} + +/** + * Read word from PCI configuration space + * + * @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 ( linux, pci_read_config_word ) ( struct pci_device *pci, + unsigned int where, + uint16_t *value ) { + int rc; + unsigned long tmp; + + rc = linux_pci_read ( pci, where, &tmp, sizeof ( *value ) ); + *value = tmp; + return rc; +} + +/** + * Read dword from PCI configuration space + * + * @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 ( linux, pci_read_config_dword ) ( struct pci_device *pci, + unsigned int where, + uint32_t *value ) { + int rc; + unsigned long tmp; + + rc = linux_pci_read ( pci, where, &tmp, sizeof ( *value ) ); + *value = tmp; + return rc; +} + +/** + * Write byte to PCI configuration space + * + * @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 ( linux, pci_write_config_byte ) ( struct pci_device *pci, + unsigned int where, + uint8_t value ) { + return linux_pci_write ( pci, where, value, sizeof ( value ) ); +} + +/** + * Write word to PCI configuration space + * + * @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 ( linux, pci_write_config_word ) ( struct pci_device *pci, + unsigned int where, + uint16_t value ) { + return linux_pci_write ( pci, where, value, sizeof ( value ) ); +} + +/** + * Write dword to PCI configuration space + * + * @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 ( linux, pci_write_config_dword ) ( struct pci_device *pci, + unsigned int where, + uint32_t value ) { + return linux_pci_write ( pci, where, value, sizeof ( value ) ); +} + +#endif /* _IPXE_LINUX_PCI_H */