4f85115526
The new pci code is moved to port/pci.[hc] and shared by all ports. Each port has its own PCI controller implementation, providing the pcicfgrw*() functions for low level pci config space access. The locking for pcicfgrw*() is now done by the caller (only port/pci.c). Device drivers now need to include "../port/pci.h" in addition to "io.h". The new code now checks bridge windows and membars, while enumerating the bus, giving the pc driver a chance to re-assign them. This is needed because some UEFI implementations fail to assign the bars for some devices, so we need to do it outselfs. (See pcireservemem()). While working on this, it was discovered that the pci code assimed the smallest I/O bar size is 16 (pcibarsize()), which is wrong. I/O bars can be as small as 4 bytes. Bit 1 in an I/O bar is also reserved and should be masked off, making the port mask: port = bar & ~3;
192 lines
4.9 KiB
C
192 lines
4.9 KiB
C
#include "../port/portfns.h"
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void aamloop(int);
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Dirtab* addarchfile(char*, int, long(*)(Chan*,void*,long,vlong), long(*)(Chan*,void*,long,vlong));
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void archinit(void);
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void archreset(void);
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int bios32call(BIOS32ci*, u16int[3]);
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int bios32ci(BIOS32si*, BIOS32ci*);
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void bios32close(BIOS32si*);
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BIOS32si* bios32open(char*);
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void bootargsinit(void);
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ulong cankaddr(ulong);
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int checksum(void *, int);
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void clockintr(Ureg*, void*);
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int (*cmpswap)(long*, long, long);
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int cmpswap486(long*, long, long);
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void (*coherence)(void);
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void cpuid(int, ulong regs[]);
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int cpuidentify(void);
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void cpuidprint(void);
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void (*cycles)(uvlong*);
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void delay(int);
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void* dmabva(int);
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#define dmaflush(clean, addr, len)
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int dmacount(int);
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int dmadone(int);
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void dmaend(int);
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int dmainit(int, int);
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#define DMAWRITE 0
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#define DMAREAD 1
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#define DMALOOP 2
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long dmasetup(int, void*, long, int);
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void dumpmcregs(void);
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int ecinit(int cmdport, int dataport);
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int ecread(uchar addr);
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int ecwrite(uchar addr, uchar val);
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#define evenaddr(x) /* x86 doesn't care */
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void fpclear(void);
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void fpinit(void);
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void fpoff(void);
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void (*fprestore)(FPsave*);
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void (*fpsave)(FPsave*);
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void fpsserestore(FPsave*);
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void fpssesave(FPsave*);
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void fpx87restore(FPsave*);
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void fpx87restore0(FPsave*);
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void fpx87save(FPsave*);
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void fpx87save0(FPsave*);
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ulong getcr0(void);
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ulong getcr2(void);
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ulong getcr3(void);
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ulong getcr4(void);
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u32int getdr6(void);
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char* getconf(char*);
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void guesscpuhz(int);
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void halt(void);
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void mwait(void*);
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int i8042auxcmd(int);
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void i8042auxenable(void (*)(int, int));
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void i8042reset(void);
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void i8250console(void);
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void* i8250alloc(int, int, int);
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void i8253enable(void);
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void i8253init(void);
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void i8253reset(void);
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uvlong i8253read(uvlong*);
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void i8253timerset(uvlong);
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int i8259disable(int);
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int i8259enable(Vctl*);
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void i8259init(void);
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int i8259isr(int);
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void i8259on(void);
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void i8259off(void);
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int i8259vecno(int);
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void idle(void);
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void idlehands(void);
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int inb(int);
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void insb(int, void*, int);
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ushort ins(int);
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void inss(int, void*, int);
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ulong inl(int);
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void insl(int, void*, int);
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void intrdisable(int, void (*)(Ureg *, void *), void*, int, char*);
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void intrenable(int, void (*)(Ureg*, void*), void*, int, char*);
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void introff(void);
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void intron(void);
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void invlpg(ulong);
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void iofree(int);
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void ioinit(void);
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int iounused(int, int);
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int ioalloc(int, int, int, char*);
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int ioreserve(int, int, int, char*);
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int iprint(char*, ...);
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int isaconfig(char*, int, ISAConf*);
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void* kaddr(ulong);
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#define kmapinval()
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void ldmxcsr(ulong);
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void lgdt(ushort[3]);
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void lldt(ulong);
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void lidt(ushort[3]);
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void links(void);
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void ltr(ulong);
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void mach0init(void);
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void mathinit(void);
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void mb386(void);
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void mb586(void);
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void meminit(void);
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void meminit0(void);
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void memreserve(uintptr, uintptr);
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void mfence(void);
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#define mmuflushtlb(pdb) putcr3(pdb)
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void mmuinit(void);
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ulong* mmuwalk(ulong*, ulong, int, int);
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char* mtrr(uvlong, uvlong, char *);
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void mtrrclock(void);
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int mtrrprint(char *, long);
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void mtrrsync(void);
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uchar nvramread(int);
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void nvramwrite(int, uchar);
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void outb(int, int);
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void outsb(int, void*, int);
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void outs(int, ushort);
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void outss(int, void*, int);
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void outl(int, ulong);
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void outsl(int, void*, int);
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ulong paddr(void*);
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void patwc(void*, int);
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void pcicfginit(void);
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int (*pcicfgrw8)(int, int, int, int);
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int (*pcicfgrw16)(int, int, int, int);
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int (*pcicfgrw32)(int, int, int, int);
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void pcmcisread(PCMslot*);
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int pcmcistuple(int, int, int, void*, int);
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PCMmap* pcmmap(int, ulong, int, int);
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int pcmspecial(char*, ISAConf*);
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int (*_pcmspecial)(char *, ISAConf *);
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void pcmspecialclose(int);
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void (*_pcmspecialclose)(int);
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void pcmunmap(int, PCMmap*);
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void pmap(ulong, ulong, int);
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void punmap(ulong, int);
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void procrestore(Proc*);
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void procsave(Proc*);
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void procsetup(Proc*);
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void procfork(Proc*);
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void putcr0(ulong);
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void putcr2(ulong);
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void putcr3(ulong);
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void putcr4(ulong);
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void putdr(u32int*);
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void putdr01236(uintptr*);
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void putdr6(u32int);
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void putdr7(u32int);
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void* rampage(void);
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int rdmsr(int, vlong*);
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void realmode(Ureg*);
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void* rsdsearch(void);
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void screeninit(void);
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void (*screenputs)(char*, int);
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void setconfenv(void);
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void* sigsearch(char*, int);
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void syncclock(void);
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void* tmpmap(Page*);
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void tmpunmap(void*);
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void touser(void*);
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void trapenable(int, void (*)(Ureg*, void*), void*, char*);
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void trapinit(void);
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void trapinit0(void);
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int tas(void*);
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uvlong tscticks(uvlong*);
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ulong umballoc(ulong, ulong, ulong);
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void umbfree(ulong, ulong);
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uvlong upaalloc(uvlong, ulong, ulong);
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uvlong upaallocwin(uvlong, ulong, ulong, ulong);
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void upafree(uvlong, ulong);
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void vectortable(void);
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void* vmap(uvlong, int);
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int vmapsync(ulong);
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void vmxprocrestore(Proc *);
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void vmxshutdown(void);
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void vunmap(void*, int);
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void wbinvd(void);
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void writeconf(void);
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int wrmsr(int, vlong);
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int xchgw(ushort*, int);
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void rdrandbuf(void*, ulong);
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#define userureg(ur) (((ur)->cs & 3) == 3)
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#define waserror() (up->nerrlab++, setlabel(&up->errlab[up->nerrlab-1]))
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#define KADDR(a) kaddr(a)
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#define PADDR(a) paddr((void*)(a))
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