304 lines
8.2 KiB
C
304 lines
8.2 KiB
C
/* Copyright (C) Charles Forsyth
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* See /doc/license/NOTICE.Plan9-9k.txt for details about the licensing.
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*/
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/* Portions of this file are Copyright (C) 2015-2018 Giacomo Tesio <giacomo@tesio.it>
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* See /doc/license/gpl-2.0.txt for details about the licensing.
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*/
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/* Portions of this file are Copyright (C) 9front's team.
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* See /doc/license/9front-mit for details about the licensing.
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* See http://code.9front.org/hg/plan9front/ for a list of authors.
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*/
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#include "../port/portfns.h"
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#define SUPPORT_MWAIT (m->cpuinfo[1][2] & (1<<3))
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void onIdleSpin(void);
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int bios32call(BIOS32ci*, uint16_t[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* sigsearch(char*);
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int checksum(void *v, int n);
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void mouseenable(void);
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int mousecmd(int);
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void aamloop(int);
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Dirtab* addarchfile(char*, int,
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long(*)(Chan*,void*,long,int64_t),
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long(*)(Chan*,void*,long,int64_t));
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void archenable(void);
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void archfmtinstall(void);
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void archidle(void);
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void archinit(void);
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int archmmu(void);
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void archreset(void) __attribute__ ((noreturn));
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int64_t archhz(void);
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int asmfree(uint64_t, uint64_t, int);
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uint64_t asmalloc(uint64_t, uint64_t, int, int);
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void asminit(void);
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void asmmapinit(uint64_t, uint64_t, int);
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void asmmodinit(uint32_t, uint32_t, char*);
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void screen_init(void);
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uintptr_t cankaddr(uintptr_t pa);
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void (*coherence)(void);
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void cpuid(int, uint32_t regs[]);
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int cpuidentify(void);
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void cpuidprint(void);
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int corecolor(int);
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void (*cycles)(uint64_t*);
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int dbgprint(char*, ...);
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void delay(int);
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int ecinit(int cmdport, int dataport);
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int ecread(uint8_t addr);
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int ecwrite(uint8_t addr, uint8_t val);
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#define evenaddr(x) /* x86 doesn't care */
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int e820(void);
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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 fpprocfork(Proc *p);
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void fpprocsetup(Proc* p);
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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 halt(void);
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void hpetinit(uint32_t, uint32_t, uintmem, int);
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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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int64_t i8254hz(uint32_t[2][4]);
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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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uint64_t i8253read(uint64_t*);
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void i8253timerset(uint64_t);
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void idle(void);
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void idlehands(void);
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void idthandlers(void);
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int inb(int);
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void insb(int, void*, int);
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uint16_t ins(int);
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void inss(int, void*, int);
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uint32_t inl(int);
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void insl(int, void*, int);
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int intrdisable(int irq, void (*f)(Ureg *, void *), void *a, int tbdf, char *name);
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void* intrenable(int, void (*)(Ureg*, void*), void*, int, char*);
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void invlpg(uintptr_t va);
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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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int isdmaok(void*, usize, int);
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void keybenable(void); // i8042.c
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void keybinit(void); // i8042.c
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void kexit(Ureg*);
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KMap* kmap(uintptr_t pa);
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void kunmap(KMap*);
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#define kmapinval()
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void lfence(void);
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void links(void);
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#define lockgetpc(l) (l->pc)
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int machdom(Mach*);
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void machinit(void);
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void mach0init(void);
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void mapraminit(uint64_t, uint64_t);
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void mathinit(void);
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void memdebug(void);
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void meminit(void);
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int memcolor(uintmem addr, uintmem *sizep);
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void memmaprange(uintptr_t, uintmem, uintmem, PTE (*alloc)(usize), PTE);
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void memreserve(uintmem, uintmem);
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void mfence(void);
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void mmudump(Proc*);
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#define mmuflushtlb() cr3put(cr3get())
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void mmuinit(void);
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#define mmucachectl(pg, why) USED(pg, why) /* x86 doesn't need it */
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uint64_t mmuphysaddr(uintptr_t);
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uintptr_t* mmuwalk(uintptr_t* table, uintptr_t va, int level, int create);
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char* mtrr(unsigned long, unsigned long, 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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int multiboot(int);
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void mwait(void*);
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uint32_t mwait32(void*, uint32_t);
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void ndnr(void);
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uint8_t nvramread(int);
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void nvramwrite(int, uint8_t);
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void optionsinit(char*);
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void outb(int, int);
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void outsb(int, void*, int);
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void outs(int, uint16_t);
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void outss(int, void*, int);
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void outl(int, uint32_t);
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void outsl(int, void*, int);
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void patwc(void *a, int n);
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void pause(void);
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int pciscan(int, Pcidev**);
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uint32_t pcibarsize(Pcidev*, int);
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int pcicap(Pcidev*, int);
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int pcicfgr8(Pcidev*, int);
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int pcicfgr16(Pcidev*, int);
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int pcicfgr32(Pcidev*, int);
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void pcicfgw8(Pcidev*, int, int);
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void pcicfgw16(Pcidev*, int, int);
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void pcicfgw32(Pcidev*, int, int);
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void pciclrbme(Pcidev*);
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void pciclrioe(Pcidev*);
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void pciclrmwi(Pcidev*);
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int pcigetpms(Pcidev*);
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void pcihinv(Pcidev*);
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uint8_t pciipin(Pcidev*, uint8_t);
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Pcidev* pcimatch(Pcidev*, int, int);
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Pcidev* pcimatchtbdf(int);
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void pcireset(void);
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void pcisetbme(Pcidev*);
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void pcisetioe(Pcidev*);
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void pcisetmwi(Pcidev*);
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int pcisetpms(Pcidev*, int);
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uintmem pcixcfgspace(int);
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void* pcixcfgaddr(Pcidev*, int);
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void pmap(uintptr_t *pml4, uintptr_t pa, uintptr_t va, long size);
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void printcpufreq(void);
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void* rampage(void);
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int screenprint(char*, ...); /* debugging */
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void sfence(void);
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void spldone(void);
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void (*specialmem)(uintmem, uintmem, int);
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uint64_t splhi(void);
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uint64_t spllo(void);
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void splx(uint64_t);
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void splxpc(uint64_t);
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void syncclock(void);
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void* sysexecregs(uintptr_t, uint32_t);
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uintptr_t sysexecstack(uintptr_t, int);
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void sysprocsetup(Proc*);
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void tssrsp0(uint64_t);
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uint64_t tscticks(uint64_t *hz);
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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 userureg(Ureg*);
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uintptr_t upaalloc(int size, int align);
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void upafree(uintptr_t pa, int size);
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void upareserve(uintptr_t pa, int size);
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void* vmap(uintptr_t, usize);
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void vunmap(void*, usize);
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extern Mreg cr0get(void);
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extern void cr0put(Mreg);
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extern Mreg cr2get(void);
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extern Mreg cr3get(void);
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extern void cr3put(Mreg);
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extern Mreg cr4get(void);
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extern void cr4put(Mreg);
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extern void gdtget(void*);
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extern void gdtput(int, uint64_t, uint16_t);
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extern void lgdt(void*);
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extern void idtput(int, uint64_t);
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extern void lidt(void*);
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extern int rdmsr(uint32_t reg, long* value);
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extern uint64_t rdtsc(void);
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extern void trput(uint64_t);
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extern void wbinvd(void);
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extern int wrmsr(uint32_t, uint64_t);
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int xaddb(void*);
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#define userureg(ur) (((ur)->cs & 3) == 3)
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extern int islo(void);
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extern void spldone(void);
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extern Mreg splhi(void);
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extern Mreg spllo(void);
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extern void splx(Mreg);
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int cas8(void*, uint8_t, uint8_t);
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int cas16(void*, uint16_t, uint16_t);
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int cas32(void*, uint32_t, uint32_t);
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int cas64(void*, uint64_t, uint64_t);
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int tas32(void*);
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#define CASU(p, e, n) cas64((p), (uint64_t)(e), (uint64_t)(n))
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#define CASV(p, e, n) cas64((p), (uint64_t)(e), (uint64_t)(n))
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#define CASW(p, e, n) cas32((p), (e), (n))
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#define TAS(addr) tas32((addr))
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void touser(uintptr_t);
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void syscallentry(void);
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void syscallreturn(void);
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void sysrforkret(void);
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#define waserror() (up->nerrlab++, setlabel(&up->errlab[up->nerrlab-1]))
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#define dcflush(a, b)
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#define PTR2UINT(p) ((uintptr_t)(p))
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#define UINT2PTR(i) ((void*)(i))
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uintptr_t mmu_physical_address(void*);
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void* mmu_kernel_address(uintptr_t);
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#define KADDR(a) mmu_kernel_address(a)
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#define PADDR(a) mmu_physical_address((void*)(a))
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#define BIOSSEG(a) KADDR(((uint32_t)(a))<<4)
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/*
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* archk10.c
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*/
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extern void millidelay(int);
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/*
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* i8259.c
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*/
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extern void i8259init(void);
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extern int i8259disable(int);
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extern int i8259enable(Vctl* v);
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extern int i8259isr(int);
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extern void i8259on(void);
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extern void i8259off(void);
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extern int i8259vecno(int irq);
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/*
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* sipi.c
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*/
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extern void sipi(void);
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void* basealloc(usize, uint32_t, usize*);
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void basefree(void*, usize);
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void physallocinit(void);
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void uartpush(void);
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void rdrandbuf(void*, uint32_t);
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/* horror */
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static inline void __clobber_callee_regs(void)
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{
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asm volatile ("" : : : "rbx", "r12", "r13", "r14", "r15");
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}
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int slim_setlabel(Label*) __attribute__((returns_twice));
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
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#define setlabel(label) ({int err; \
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__clobber_callee_regs(); \
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err = slim_setlabel(label); \
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err;})
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#pragma GCC diagnostic pop
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