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#include "types.h" // u32
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static inline u8 pci_bdf_to_bus(u16 bdf) {
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static inline u8 pci_bdf_to_devfn(u16 bdf) {
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static inline u16 pci_bdf_to_busdev(u16 bdf) {
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static inline u8 pci_bdf_to_dev(u16 bdf) {
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return (bdf >> 3) & 0x1f;
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static inline u8 pci_bdf_to_fn(u16 bdf) {
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static inline u16 pci_to_bdf(int bus, int dev, int fn) {
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return (bus<<8) | (dev<<3) | fn;
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static inline u16 pci_bus_devfn_to_bdf(int bus, u16 devfn) {
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return (bus << 8) | devfn;
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static inline u32 pci_vd(u16 vendor, u16 device) {
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return (device << 16) | vendor;
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static inline u16 pci_vd_to_ven(u32 vd) {
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static inline u16 pci_vd_to_dev(u32 vd) {
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void pci_config_writel(u16 bdf, u32 addr, u32 val);
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void pci_config_writew(u16 bdf, u32 addr, u16 val);
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void pci_config_writeb(u16 bdf, u32 addr, u8 val);
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u32 pci_config_readl(u16 bdf, u32 addr);
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u16 pci_config_readw(u16 bdf, u32 addr);
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u8 pci_config_readb(u16 bdf, u32 addr);
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void pci_config_maskw(u16 bdf, u32 addr, u16 off, u16 on);
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int pci_find_vga(void);
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int pci_find_device(u16 vendid, u16 devid);
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int pci_find_class(u16 classid);
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int pci_next(int bdf, int *pmax);
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#define foreachpci(BDF, MAX) \
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for (MAX=0x0100, BDF=pci_next(0, &MAX) \
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; BDF=pci_next(BDF+1, &MAX))
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#define foreachpci_in_bus(BDF, MAX, BUS) \
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for (MAX = pci_bus_devfn_to_bdf(BUS, 0) + 0x0100, \
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BDF = pci_next(pci_bus_devfn_to_bdf(BUS, 0), &MAX) \
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; BDF >= 0 && BDF < pci_bus_devfn_to_bdf(BUS, 0) + 0x0100 \
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; MAX = pci_bus_devfn_to_bdf(BUS, 0) + 0x0100, \
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BDF = pci_next(BDF + 1, &MAX))
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void create_pirtable(void);
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/****************************************************************
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****************************************************************/
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struct link_info links[4];
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struct pir_slot slots[0];
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#define PIR_SIGNATURE 0x52495024 // $PIR