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| author | Jiri Kosina <jkosina@suse.cz> | 2010-04-23 02:08:44 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2010-04-23 02:08:44 +0200 |
| commit | 6c9468e9eb1252eaefd94ce7f06e1be9b0b641b1 (patch) | |
| tree | 797676a336b050bfa1ef879377c07e541b9075d6 /arch/mips/include/asm/processor.h | |
| parent | 4cb3ca7cd7e2cae8d1daf5345ec99a1e8502cf3f (diff) | |
| parent | c81eddb0e3728661d1585fbc564449c94165cc36 (diff) | |
Merge branch 'master' into for-next
Diffstat (limited to 'arch/mips/include/asm/processor.h')
| -rw-r--r-- | arch/mips/include/asm/processor.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/arch/mips/include/asm/processor.h b/arch/mips/include/asm/processor.h index 087a8884ef0..ab387910009 100644 --- a/arch/mips/include/asm/processor.h +++ b/arch/mips/include/asm/processor.h @@ -33,13 +33,19 @@ extern void (*cpu_wait)(void); extern unsigned int vced_count, vcei_count; +/* + * A special page (the vdso) is mapped into all processes at the very + * top of the virtual memory space. + */ +#define SPECIAL_PAGES_SIZE PAGE_SIZE + #ifdef CONFIG_32BIT /* * User space process size: 2GB. This is hardcoded into a few places, * so don't change it unless you know what you are doing. */ #define TASK_SIZE 0x7fff8000UL -#define STACK_TOP TASK_SIZE +#define STACK_TOP ((TASK_SIZE & PAGE_MASK) - SPECIAL_PAGES_SIZE) /* * This decides where the kernel will search for a free chunk of vm @@ -59,7 +65,8 @@ extern unsigned int vced_count, vcei_count; #define TASK_SIZE32 0x7fff8000UL #define TASK_SIZE 0x10000000000UL #define STACK_TOP \ - (test_thread_flag(TIF_32BIT_ADDR) ? TASK_SIZE32 : TASK_SIZE) + (((test_thread_flag(TIF_32BIT_ADDR) ? \ + TASK_SIZE32 : TASK_SIZE) & PAGE_MASK) - SPECIAL_PAGES_SIZE) /* * This decides where the kernel will search for a free chunk of vm |