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/*
* Time.
*
* HZ should divide 1000 evenly, ideally.
* 100, 125, 200, 250 and 333 are okay.
*/
#define HZ 100 /* clock frequency */
#define MS2HZ (1000/HZ) /* millisec per clock tick */
#define TK2SEC(t) ((t)/HZ) /* ticks to seconds */
enum {
Mhz = 1000 * 1000,
GpioLow = 0,
GpioHigh,
GpioRising,
GpioFalling,
GpioEdge,
};
typedef struct Conf Conf;
typedef struct Confmem Confmem;
typedef struct FPsave FPsave;
typedef struct PFPU PFPU;
typedef struct ISAConf ISAConf;
typedef struct Label Label;
typedef struct Lock Lock;
typedef struct Memcache Memcache;
typedef struct MMMU MMMU;
typedef struct Mach Mach;
typedef struct Page Page;
typedef struct PhysUart PhysUart;
typedef struct Pcidev Pcidev;
typedef struct PMMU PMMU;
typedef struct Proc Proc;
typedef u64int PTE;
typedef struct Soc Soc;
typedef struct Uart Uart;
typedef struct Ureg Ureg;
typedef uvlong Tval;
typedef void KMap;
#pragma incomplete Pcidev
#pragma incomplete Ureg
#define MAXSYSARG 5 /* for mount(fd, mpt, flag, arg, srv) */
/*
* parameters for sysproc.c
*/
#define AOUT_MAGIC (R_MAGIC)
struct Lock
{
ulong key;
u32int sr;
uintptr pc;
Proc* p;
Mach* m;
int isilock;
};
struct Label
{
uintptr sp;
uintptr pc;
};
struct FPsave
{
uvlong regs[32][2];
ulong control;
ulong status;
};
struct PFPU
{
FPsave fpsave[1];
int fpstate;
};
enum
{
FPinit,
FPactive,
FPinactive,
/* bits or'd with the state */
FPillegal= 0x100,
};
struct Confmem
{
uintptr base;
ulong npage;
uintptr limit;
uintptr kbase;
uintptr klimit;
};
struct Conf
{
ulong nmach; /* processors */
ulong nproc; /* processes */
Confmem mem[3]; /* physical memory */
ulong npage; /* total physical pages of memory */
ulong upages; /* user page pool */
ulong copymode; /* 0 is copy on write, 1 is copy on reference */
ulong ialloc; /* max interrupt time allocation in bytes */
ulong pipeqsize; /* size in bytes of pipe queues */
ulong nimage; /* number of page cache image headers */
ulong nswap; /* number of swap pages */
int nswppo; /* max # of pageouts per segment pass */
ulong hz; /* processor cycle freq */
ulong mhz;
int monitor; /* flag */
};
/*
* MMU stuff in Mach.
*/
struct MMMU
{
PTE* mmutop; /* first level user page table */
};
/*
* MMU stuff in proc
*/
#define NCOLOR 1 /* 1 level cache, don't worry about VCE's */
struct PMMU
{
union {
Page *mmufree; /* mmuhead[0] is freelist head */
Page *mmuhead[PTLEVELS];
};
Page *mmutail[PTLEVELS];
int asid;
uintptr tpidr;
};
#include "../port/portdat.h"
struct Mach
{
int machno; /* physical id of processor */
uintptr splpc; /* pc of last caller to splhi */
Proc* proc; /* current process on this processor */
/* end of offsets known to asm */
MMMU;
PMach;
int cputype;
ulong delayloop;
int cpumhz;
uvlong cpuhz; /* speed of cpu */
int stack[1];
};
struct
{
char machs[MAXMACH]; /* active CPUs */
int exiting; /* shutdown */
}active;
#define MACHP(n) ((Mach*)MACHADDR(n))
extern register Mach* m; /* R27 */
extern register Proc* up; /* R26 */
extern int normalprint;
/*
* a parsed plan9.ini line
*/
#define NISAOPT 8
struct ISAConf {
char *type;
uvlong port;
int irq;
ulong dma;
ulong mem;
ulong size;
ulong freq;
int nopt;
char *opt[NISAOPT];
};
/*
* Horrid. But the alternative is 'defined'.
*/
#ifdef _DBGC_
#define DBGFLG (dbgflg[_DBGC_])
#else
#define DBGFLG (0)
#endif /* _DBGC_ */
int vflag;
extern char dbgflg[256];
#define dbgprint print /* for now */
/*
* hardware info about a device
*/
typedef struct {
ulong port;
int size;
} Devport;
struct DevConf
{
ulong intnum; /* interrupt number */
char *type; /* card type, malloced */
int nports; /* Number of ports */
Devport *ports; /* The ports themselves */
};
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