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/*
* Memory and machine-specific definitions. Used in C and assembler.
*/
/*
* Sizes
*/
#define _K_ 1024 /* 2^10 -> Kilo */
#define _M_ 1048576 /* 2^20 -> Mega */
#define _G_ 1073741824 /* 2^30 -> Giga */
#define _T_ 1099511627776UL /* 2^40 -> Tera */
#define BI2BY 8 /* bits per byte */
#define BI2WD 32 /* bits per word */
#define BY2WD 4 /* bytes per word */
#define BY2V 8 /* bytes per double word */
#define BY2PG 4096 /* bytes per page */
#define WD2PG (BY2PG/BY2WD) /* words per page */
#define PGSHIFT 12 /* log(BY2PG) */
#define ROUND(s, sz) (((s)+(sz-1))&~(sz-1))
#define PGROUND(s) ROUND(s, BY2PG)
#define BIT(n) (1<<n)
#define BITS(a,b) ((1<<(b+1))-(1<<a))
#define MAXMACH 1 /* max # cpus system can run */
/*
* Time
*/
#define HZ (100) /* clock frequency */
#define MS2HZ (1000/HZ) /* millisec per clock tick */
#define TK2SEC(t) ((t)/HZ) /* ticks to seconds */
#define MS2TK(t) ((t)/MS2HZ) /* milliseconds to ticks */
/*
* More accurate time
*/
#define TIMER_HZ 50000000
#define MS2TMR(t) ((ulong)(((uvlong)(t)*TIMER_HZ)/1000))
#define US2TMR(t) ((ulong)(((uvlong)(t)*TIMER_HZ)/1000000))
/*
* Address spaces
*
*/
#define KZERO 0x0
#define MACHADDR ((ulong)&Mach0)
/* #define MACHADDR (KZERO+0x00002000) /* should come from BootParam, */
/* or be automatically allocated */
/* #define KTTB (KZERO+0x00004000) - comes from BootParam now */
#define KTZERO bootparam->entry
#define KSTACK 8192 /* Size of kernel stack */
#include "armv7.h"
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