1 #ifndef _ASM_IA64_USTACK_H 2 #define _ASM_IA64_USTACK_H 3 4 /* 5 * Constants for the user stack size 6 */ 7 8 #ifdef __KERNEL__ 9 #include <asm/page.h> 10 11 /* The absolute hard limit for stack size is 1/2 of the mappable space in the region */ 12 #define MAX_USER_STACK_SIZE (RGN_MAP_LIMIT/2) 13 #define STACK_TOP (0x6000000000000000UL + RGN_MAP_LIMIT) 14 #define STACK_TOP_MAX STACK_TOP 15 #endif 16 17 /* Make a default stack size of 2GiB */ 18 #define DEFAULT_USER_STACK_SIZE (1UL << 31) 19 20 #endif /* _ASM_IA64_USTACK_H */ 21