diff options
| author | Robin Getz <rgetz@blackfin.uclinux.org> | 2009-01-07 23:14:38 +0800 |
|---|---|---|
| committer | Bryan Wu <cooloney@kernel.org> | 2009-01-07 23:14:38 +0800 |
| commit | a45d575f53c9ed2926840377e59aa19e2024ee87 (patch) | |
| tree | 0789f43eaee963ea5c4f4f011080b4e36a77c7eb /arch/blackfin/include | |
| parent | f768a0eb90831ced2129df6ccba6f1177fa5a0fa (diff) | |
Blackfin arch: Add basic irq stack checking for Blackfin
Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'arch/blackfin/include')
| -rw-r--r-- | arch/blackfin/include/asm/processor.h | 8 | ||||
| -rw-r--r-- | arch/blackfin/include/asm/thread_info.h | 1 |
2 files changed, 9 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/processor.h b/arch/blackfin/include/asm/processor.h index 2cb0b8711fa..83d57a85b14 100644 --- a/arch/blackfin/include/asm/processor.h +++ b/arch/blackfin/include/asm/processor.h @@ -24,6 +24,14 @@ static inline void wrusp(unsigned long usp) __asm__ __volatile__("usp = %0;\n\t"::"da"(usp)); } +static inline unsigned long __get_SP(void) +{ + unsigned long sp; + + __asm__ __volatile__("%0 = sp;\n\t" : "=da"(sp)); + return sp; +} + /* * User space process size: 1st byte beyond user address space. * Fairly meaningless on nommu. Parts of user programs can be scattered diff --git a/arch/blackfin/include/asm/thread_info.h b/arch/blackfin/include/asm/thread_info.h index 642769329d1..1d380def241 100644 --- a/arch/blackfin/include/asm/thread_info.h +++ b/arch/blackfin/include/asm/thread_info.h @@ -44,6 +44,7 @@ */ #define THREAD_SIZE_ORDER 1 #define THREAD_SIZE 8192 /* 2 pages */ +#define STACK_WARN (THREAD_SIZE/8) #ifndef __ASSEMBLY__ |