pciea.h

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#ifndef _IPXE_PCIEA_H
#define _IPXE_PCIEA_H
 
/** @file
 *
 * PCI Enhanced Allocation
 *
 */
 
FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
 
#include <ipxe/pci.h>
 
/** Number of entries */
#define PCIEA_ENTRIES 2
#define PCIEA_ENTRIES_MASK 0x3f
 
/** First entry */
#define PCIEA_FIRST 4
 
/** Entry descriptor */
#define PCIEA_DESC 0
 
/** Entry size */
#define PCIEA_DESC_SIZE(desc) ( ( (desc) >> 0 ) & 0x7 )
 
/** BAR equivalent indicator */
#define PCIEA_DESC_BEI(desc) ( ( (desc) >> 4 ) & 0xf )
 
/** BAR equivalent indicators */
enum pciea_bei {
        PCIEA_BEI_BAR_0 = 0,             /**< Standard BAR 0 */
        PCIEA_BEI_BAR_1 = 1,             /**< Standard BAR 1 */
        PCIEA_BEI_BAR_2 = 2,             /**< Standard BAR 2 */
        PCIEA_BEI_BAR_3 = 3,             /**< Standard BAR 3 */
        PCIEA_BEI_BAR_4 = 4,             /**< Standard BAR 4 */
        PCIEA_BEI_BAR_5 = 5,             /**< Standard BAR 5 */
        PCIEA_BEI_ROM = 8,         /**< Expansion ROM BAR */
        PCIEA_BEI_VF_BAR_0 = 9,               /**< Virtual function BAR 0 */
        PCIEA_BEI_VF_BAR_1 = 10,      /**< Virtual function BAR 1 */
        PCIEA_BEI_VF_BAR_2 = 11,      /**< Virtual function BAR 2 */
        PCIEA_BEI_VF_BAR_3 = 12,      /**< Virtual function BAR 3 */
        PCIEA_BEI_VF_BAR_4 = 13,      /**< Virtual function BAR 4 */
        PCIEA_BEI_VF_BAR_5 = 14,      /**< Virtual function BAR 5 */
};
 
/** Entry is enabled */
#define PCIEA_DESC_ENABLED 0x80000000UL
 
/** Base address low dword */
#define PCIEA_LOW_BASE 4
 
/** Limit low dword */
#define PCIEA_LOW_LIMIT 8
 
/** BAR is 64-bit */
#define PCIEA_LOW_ATTR_64BIT 0x00000002UL
 
/** Low dword attribute bit mask */
#define PCIEA_LOW_ATTR_MASK 0x00000003UL
 
/** Offset to high dwords */
#define PCIEA_LOW_HIGH 8
 
extern unsigned long pciea_bar_start ( struct pci_device *pci,
                                       unsigned int bei );
extern unsigned long pciea_bar_size ( struct pci_device *pci,
                                      unsigned int bei );
 
#endif /* _IPXE_PCIEA_H */