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| author | David S. Miller <davem@davemloft.net> | 2008-11-23 21:55:29 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-12-04 09:17:02 -0800 |
| commit | b4f4372f96e0573d752d9e45beda02fabf716cc8 (patch) | |
| tree | 641798dfe78c1407908c68b64427cd55cdc18b34 /arch/sparc/include/asm/irqflags_64.h | |
| parent | c6afec5e4d323e7b88a7d6e291a5aa021a8fcb7d (diff) | |
| download | op-kernel-dev-b4f4372f96e0573d752d9e45beda02fabf716cc8.zip op-kernel-dev-b4f4372f96e0573d752d9e45beda02fabf716cc8.tar.gz | |
sparc64: Make %pil level 15 a pseudo-NMI.
So that we can profile code even in a local_irq_disable() section,
only write 14 (instead of 15) into the %pil register to disable IRQs.
This allows PIL level 15 to serve as a pseudo NMI.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/include/asm/irqflags_64.h')
| -rw-r--r-- | arch/sparc/include/asm/irqflags_64.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/sparc/include/asm/irqflags_64.h b/arch/sparc/include/asm/irqflags_64.h index bb42e59..8b49bf9 100644 --- a/arch/sparc/include/asm/irqflags_64.h +++ b/arch/sparc/include/asm/irqflags_64.h @@ -10,6 +10,8 @@ #ifndef _ASM_IRQFLAGS_H #define _ASM_IRQFLAGS_H +#include <asm/pil.h> + #ifndef __ASSEMBLY__ static inline unsigned long __raw_local_save_flags(void) @@ -40,9 +42,9 @@ static inline void raw_local_irq_restore(unsigned long flags) static inline void raw_local_irq_disable(void) { __asm__ __volatile__( - "wrpr 15, %%pil" + "wrpr %0, %%pil" : /* no outputs */ - : /* no inputs */ + : "i" (PIL_NORMAL_MAX) : "memory" ); } |
