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| author | Al Viro <viro@zeniv.linux.org.uk> | 2011-11-20 17:23:39 -0500 |
|---|---|---|
| committer | Richard Weinberger <richard@nod.at> | 2012-03-25 00:29:55 +0100 |
| commit | c56334dbf7e8772ed84390bc4664427f0a7f3b25 (patch) | |
| tree | 7deaf851c0baa7bab6eb9446093833e81f57683a /arch/x86/um/asm/processor.h | |
| parent | 10c890c0a303070652f5374ea31a0b29350d14d9 (diff) | |
um: merge processor_{32,64}.h a bit...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'arch/x86/um/asm/processor.h')
| -rw-r--r-- | arch/x86/um/asm/processor.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86/um/asm/processor.h b/arch/x86/um/asm/processor.h index 2c32df6fe231..04f82e020f2b 100644 --- a/arch/x86/um/asm/processor.h +++ b/arch/x86/um/asm/processor.h @@ -17,6 +17,16 @@ #define ARCH_IS_STACKGROW(address) \ (address + 65536 + 32 * sizeof(unsigned long) >= UPT_SP(¤t->thread.regs.regs)) +#include <asm/user.h> + +/* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */ +static inline void rep_nop(void) +{ + __asm__ __volatile__("rep;nop": : :"memory"); +} + +#define cpu_relax() rep_nop() + #include <asm/processor-generic.h> #endif |