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author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2017-04-24 18:19:10 +0200 |
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committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2017-06-12 16:25:54 +0200 |
commit | 1aea9b3f921003f0880f0676ae85d87c9f1cb4a2 (patch) | |
tree | 32b9b3100e16b50d515cd05cf249df3f6fb0b779 /arch/s390/include/asm/processor.h | |
parent | 16ddcc34b8bde5d9257114a16565fac73237bef9 (diff) | |
download | linux-1aea9b3f921003f0880f0676ae85d87c9f1cb4a2.tar.gz linux-1aea9b3f921003f0880f0676ae85d87c9f1cb4a2.tar.bz2 linux-1aea9b3f921003f0880f0676ae85d87c9f1cb4a2.zip |
s390/mm: implement 5 level pages tables
Add the logic to upgrade the page table for a 64-bit process to
five levels. This increases the TASK_SIZE from 8PB to 16EB-4K.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/processor.h')
-rw-r--r-- | arch/s390/include/asm/processor.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h index 60d395fdc864..f57c017a5c03 100644 --- a/arch/s390/include/asm/processor.h +++ b/arch/s390/include/asm/processor.h @@ -92,11 +92,11 @@ extern void execve_tail(void); */ #define TASK_SIZE_OF(tsk) (test_tsk_thread_flag(tsk, TIF_31BIT) ? \ - (1UL << 31) : (1UL << 53)) + (1UL << 31) : -PAGE_SIZE) #define TASK_UNMAPPED_BASE (test_thread_flag(TIF_31BIT) ? \ (1UL << 30) : (1UL << 41)) #define TASK_SIZE TASK_SIZE_OF(current) -#define TASK_SIZE_MAX (1UL << 53) +#define TASK_SIZE_MAX (-PAGE_SIZE) #define STACK_TOP (test_thread_flag(TIF_31BIT) ? \ (1UL << 31) : (1UL << 42)) |