diff options
| author | Greg Ungerer <gerg@uclinux.org> | 2010-05-23 21:22:05 -0400 |
|---|---|---|
| committer | Greg Ungerer <gerg@uclinux.org> | 2010-05-23 23:29:54 -0400 |
| commit | cc24c405949e3d4418a90014d10166679d78141a (patch) | |
| tree | 4348ca3ae3839f794e1326499f0da51dbad1271e | |
| parent | 9fcce0baea6628af935b1b485d6606a5a377a052 (diff) | |
m68knommu: remove size limit on non-MMU TASK_SIZE
The TASK_SIZE define is used in some places as a limit on the size of
the virtual address space of a process. On non-MMU systems those addresses
used in comparison will be physical addresses, and they could be anywhere
in the 32bit physical address space. So for !CONFIG_MMU systems set the
TASK_SIZE to the maximum physical address.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
| -rw-r--r-- | arch/m68k/include/asm/processor.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/m68k/include/asm/processor.h b/arch/m68k/include/asm/processor.h index cbd3d4751dd2..7a6a7590cc02 100644 --- a/arch/m68k/include/asm/processor.h +++ b/arch/m68k/include/asm/processor.h | |||
| @@ -44,11 +44,15 @@ static inline void wrusp(unsigned long usp) | |||
| 44 | * User space process size: 3.75GB. This is hardcoded into a few places, | 44 | * User space process size: 3.75GB. This is hardcoded into a few places, |
| 45 | * so don't change it unless you know what you are doing. | 45 | * so don't change it unless you know what you are doing. |
| 46 | */ | 46 | */ |
| 47 | #ifdef CONFIG_MMU | ||
| 47 | #ifndef CONFIG_SUN3 | 48 | #ifndef CONFIG_SUN3 |
| 48 | #define TASK_SIZE (0xF0000000UL) | 49 | #define TASK_SIZE (0xF0000000UL) |
| 49 | #else | 50 | #else |
| 50 | #define TASK_SIZE (0x0E000000UL) | 51 | #define TASK_SIZE (0x0E000000UL) |
| 51 | #endif | 52 | #endif |
| 53 | #else | ||
| 54 | #define TASK_SIZE (0xFFFFFFFFUL) | ||
| 55 | #endif | ||
| 52 | 56 | ||
| 53 | #ifdef __KERNEL__ | 57 | #ifdef __KERNEL__ |
| 54 | #define STACK_TOP TASK_SIZE | 58 | #define STACK_TOP TASK_SIZE |