/*
 * Machine dependent constants for powerpc64.
 */

#define USRSTACK        VM_MAXUSER_ADDRESS

/*
 * Virtual memory related constants, all in bytes
 */
#define MAXTSIZ         ((paddr_t)256*1024*1024)        /* max text size */
#ifndef DFLDSIZ
#define DFLDSIZ         ((paddr_t)512*1024*1024)        /* initial data size limit */
#endif
#ifndef MAXDSIZ
#define MAXDSIZ         ((paddr_t)32*1024*1024*1024)    /* max data size */
#endif
#ifndef BRKSIZ
#define BRKSIZ          ((paddr_t)16*1024*1024*1024)    /* heap gap size */
#endif
#ifndef DFLSSIZ
#define DFLSSIZ         ((paddr_t)2*1024*1024)          /* initial stack size limit */
#endif
#ifndef MAXSSIZ
#define MAXSSIZ         ((paddr_t)32*1024*1024)         /* max stack size */
#endif

#define STACKGAP_RANDOM 256*1024

/*
 * Size of shared memory map
 */
#ifndef SHMMAXPGS
#define SHMMAXPGS       1024
#endif

/*
 * Size of User Raw I/O map
 */
#define USRIOSIZE       300

#define VM_PHYS_SIZE            (USRIOSIZE * PAGE_SIZE)

#define VM_PHYSSEG_MAX          32
#define VM_PHYSSEG_STRAT        VM_PSTRAT_BSEARCH

#define VM_MIN_ADDRESS          ((vaddr_t)PAGE_SIZE)
#define VM_MAXUSER_ADDRESS      0xbffffffffffff000UL
#define VM_MAX_ADDRESS          0xffffffffffffffffUL
#ifdef _KERNEL
#define VM_MIN_STACK_ADDRESS    0x9000000000000000UL
#endif
#define VM_MIN_KERNEL_ADDRESS   0xc000000000000000UL
#define VM_MAX_KERNEL_ADDRESS   0xc0000007ffffffffUL