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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2008-02-09 20:24:36 +0300 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2008-02-09 20:24:40 +0300 |
| commit | 5a216a20837c5f5fa1ca4b8ae8991ffd96b08e6f (patch) | |
| tree | dde54e28497e920fa460cc95dadb6b38f1b2dbe0 /include/asm-s390/processor.h | |
| parent | 146e4b3c8b92071b18f0b2e6f47165bad4f9e825 (diff) | |
| download | linux-5a216a20837c5f5fa1ca4b8ae8991ffd96b08e6f.tar.xz | |
[S390] Add four level page tables for CONFIG_64BIT=y.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'include/asm-s390/processor.h')
| -rw-r--r-- | include/asm-s390/processor.h | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/include/asm-s390/processor.h b/include/asm-s390/processor.h index e8785634cbdb..5a21f457d583 100644 --- a/include/asm-s390/processor.h +++ b/include/asm-s390/processor.h @@ -64,24 +64,28 @@ extern int get_cpu_capability(unsigned int *); */ #ifndef __s390x__ -# define TASK_SIZE (0x80000000UL) -# define TASK_UNMAPPED_BASE (TASK_SIZE / 2) -# define DEFAULT_TASK_SIZE (0x80000000UL) +#define TASK_SIZE (1UL << 31) +#define TASK_UNMAPPED_BASE (1UL << 30) #else /* __s390x__ */ -# define TASK_SIZE_OF(tsk) (test_tsk_thread_flag(tsk, TIF_31BIT) ? \ - (0x80000000UL) : (0x40000000000UL)) -# define TASK_SIZE TASK_SIZE_OF(current) -# define TASK_UNMAPPED_BASE (TASK_SIZE / 2) -# define DEFAULT_TASK_SIZE (0x40000000000UL) +#define TASK_SIZE_OF(tsk) (test_tsk_thread_flag(tsk,TIF_31BIT) ? \ + (1UL << 31) : (1UL << 53)) +#define TASK_UNMAPPED_BASE (test_thread_flag(TIF_31BIT) ? \ + (1UL << 30) : (1UL << 41)) +#define TASK_SIZE TASK_SIZE_OF(current) #endif /* __s390x__ */ #ifdef __KERNEL__ -#define STACK_TOP TASK_SIZE -#define STACK_TOP_MAX DEFAULT_TASK_SIZE +#ifndef __s390x__ +#define STACK_TOP (1UL << 31) +#else /* __s390x__ */ +#define STACK_TOP (1UL << (test_thread_flag(TIF_31BIT) ? 31:53)) +#endif /* __s390x__ */ + +#define STACK_TOP_MAX STACK_TOP #endif |