diff options
| author | Jeff Garzik <jeff@garzik.org> | 2007-01-24 02:14:25 -0500 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-01-24 02:14:25 -0500 |
| commit | e47b207a5bcb73bb097f94d9fe364f50737b0eb2 (patch) | |
| tree | 57389653c37d001de3a90655cb4172ba29199ce4 /include/asm-mips | |
| parent | d344bff9c36db17dc4765215495aaa7212c1eb6c (diff) | |
| parent | 419dd8378dfa32985672ab7927b4bc827f33b332 (diff) | |
Merge branch 'master' into upstream-fixes
Diffstat (limited to 'include/asm-mips')
| -rw-r--r-- | include/asm-mips/irqflags.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/include/asm-mips/irqflags.h b/include/asm-mips/irqflags.h index 46bf5de5ac72..af3b07dfad4b 100644 --- a/include/asm-mips/irqflags.h +++ b/include/asm-mips/irqflags.h @@ -15,6 +15,27 @@ #include <asm/hazards.h> +/* + * CONFIG_MIPS_MT_SMTC_INSTANT_REPLAY does prompt replay of deferred IPIs, + * at the cost of branch and call overhead on each local_irq_restore() + */ + +#ifdef CONFIG_MIPS_MT_SMTC_INSTANT_REPLAY + +extern void smtc_ipi_replay(void); + +#define irq_restore_epilog(flags) \ +do { \ + if (!(flags & 0x0400)) \ + smtc_ipi_replay(); \ +} while (0) + +#else + +#define irq_restore_epilog(ignore) do { } while (0) + +#endif /* CONFIG_MIPS_MT_SMTC_INSTANT_REPLAY */ + __asm__ ( " .macro raw_local_irq_enable \n" " .set push \n" @@ -193,6 +214,7 @@ do { \ : "=r" (__tmp1) \ : "0" (flags) \ : "memory"); \ + irq_restore_epilog(flags); \ } while(0) static inline int raw_irqs_disabled_flags(unsigned long flags) |