diff options
| author | Patrick McHardy <kaber@trash.net> | 2010-05-10 18:39:28 +0200 |
|---|---|---|
| committer | Patrick McHardy <kaber@trash.net> | 2010-05-10 18:39:28 +0200 |
| commit | 1e4b1057121bc756b91758a434b504d2010f6088 (patch) | |
| tree | b016cf2c728289c7e36d9e4e488f30ab0bd0ae6e /arch/sparc/kernel/kstack.h | |
| parent | 3b254c54ec46eb022cb26ee6ab37fae23f5f7d6a (diff) | |
| parent | 3ee943728fff536edaf8f59faa58aaa1aa7366e3 (diff) | |
Merge branch 'master' of /repos/git/net-next-2.6
Conflicts:
net/bridge/br_device.c
net/bridge/br_forward.c
Signed-off-by: Patrick McHardy <kaber@trash.net>
Diffstat (limited to 'arch/sparc/kernel/kstack.h')
| -rw-r--r-- | arch/sparc/kernel/kstack.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/sparc/kernel/kstack.h b/arch/sparc/kernel/kstack.h index 5247283d1c03..53dfb92e09fb 100644 --- a/arch/sparc/kernel/kstack.h +++ b/arch/sparc/kernel/kstack.h @@ -61,4 +61,23 @@ check_magic: } +static inline __attribute__((always_inline)) void *set_hardirq_stack(void) +{ + void *orig_sp, *sp = hardirq_stack[smp_processor_id()]; + + __asm__ __volatile__("mov %%sp, %0" : "=r" (orig_sp)); + if (orig_sp < sp || + orig_sp > (sp + THREAD_SIZE)) { + sp += THREAD_SIZE - 192 - STACK_BIAS; + __asm__ __volatile__("mov %0, %%sp" : : "r" (sp)); + } + + return orig_sp; +} + +static inline __attribute__((always_inline)) void restore_hardirq_stack(void *orig_sp) +{ + __asm__ __volatile__("mov %0, %%sp" : : "r" (orig_sp)); +} + #endif /* _KSTACK_H */ |