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| author | Robin Getz <rgetz@blackfin.uclinux.org> | 2009-01-07 18:14:38 +0300 |
|---|---|---|
| committer | Bryan Wu <cooloney@kernel.org> | 2009-01-07 18:14:38 +0300 |
| commit | a45d575f53c9ed2926840377e59aa19e2024ee87 (patch) | |
| tree | 0789f43eaee963ea5c4f4f011080b4e36a77c7eb /arch/blackfin/include/asm/processor.h | |
| parent | f768a0eb90831ced2129df6ccba6f1177fa5a0fa (diff) | |
| download | linux-a45d575f53c9ed2926840377e59aa19e2024ee87.tar.xz | |
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/asm/processor.h')
| -rw-r--r-- | arch/blackfin/include/asm/processor.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/processor.h b/arch/blackfin/include/asm/processor.h index 2cb0b8711fa4..83d57a85b14f 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 |