diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/include/asm/outercache.h | 14 | ||||
| -rw-r--r-- | arch/arm/mm/Kconfig | 6 |
2 files changed, 20 insertions, 0 deletions
diff --git a/arch/arm/include/asm/outercache.h b/arch/arm/include/asm/outercache.h index c8571cbb557..25f76bae57a 100644 --- a/arch/arm/include/asm/outercache.h +++ b/arch/arm/include/asm/outercache.h @@ -25,6 +25,9 @@ struct outer_cache_fns { void (*inv_range)(unsigned long, unsigned long); void (*clean_range)(unsigned long, unsigned long); void (*flush_range)(unsigned long, unsigned long); +#ifdef CONFIG_OUTER_CACHE_SYNC + void (*sync)(void); +#endif }; #ifdef CONFIG_OUTER_CACHE @@ -58,4 +61,15 @@ static inline void outer_flush_range(unsigned long start, unsigned long end) #endif +#ifdef CONFIG_OUTER_CACHE_SYNC +static inline void outer_sync(void) +{ + if (outer_cache.sync) + outer_cache.sync(); +} +#else +static inline void outer_sync(void) +{ } +#endif + #endif /* __ASM_OUTERCACHE_H */ diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index c4ed9f93f64..88a24de55aa 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -736,6 +736,12 @@ config NEEDS_SYSCALL_FOR_CMPXCHG config OUTER_CACHE bool +config OUTER_CACHE_SYNC + bool + help + The outer cache has a outer_cache_fns.sync function pointer + that can be used to drain the write buffer of the outer cache. + config CACHE_FEROCEON_L2 bool "Enable the Feroceon L2 cache controller" depends on ARCH_KIRKWOOD || ARCH_MV78XX0 |