On Thu, Sep 13, 2012 at 01:36:04PM +0100, Russell King - ARM Linux wrote: > On Thu, Sep 13, 2012 at 11:20:46AM +0100, Lorenzo Pieralisi wrote: > > +/* > > + * Flush caches up to Level of Unification Inner Shareable > > + */ > > +#ifdef MULTI_CACHE > > +#define flush_cache_louis() cpu_cache.flush_kern_cache_louis() > > +#else > > +#define flush_cache_louis() __cpuc_flush_kern_all() > > +#endif > > NAK. This is broken as you don't seem to understand what MULTI_CACHE > actually means. MULTI_CACHE means that we _may_ support more than one > type of cache, so it not being selected means nothing as far as whether > to use flush_kern_all() or not. > > Follow the pattern in the rest of the file - that's the _only_ way to do > this. > > Note that ARMv6 only and ARMv7 only kernels will not have MULTI_CACHE > defined (I mentioned this on Monday in our call, though not explicitly > by that name.)
Point taken, I will fix it. > > diff --git a/arch/arm/mm/proc-macros.S b/arch/arm/mm/proc-macros.S > > index 2d8ff3a..28e91f8 100644 > > --- a/arch/arm/mm/proc-macros.S > > +++ b/arch/arm/mm/proc-macros.S > > @@ -293,12 +293,17 @@ ENTRY(\name\()_processor_functions) > > .size \name\()_processor_functions, . - \name\()_processor_functions > > .endm > > > > -.macro define_cache_functions name:req > > +.macro define_cache_functions name:req, cachelouis=0 > > .align 2 > > .type \name\()_cache_fns, #object > > ENTRY(\name\()_cache_fns) > > .long \name\()_flush_icache_all > > .long \name\()_flush_kern_cache_all > > + .if \cachelouis > > + .long \name\()_flush_kern_cache_louis > > + .else > > + .long \name\()_flush_kern_cache_all > > + .endif > > .long \name\()_flush_user_cache_all > > .long \name\()_flush_user_cache_range > > .long \name\()_coherent_kern_range > > And what the above means is that _every_ cache support file must supply a > XXX_flush_kern_cache_louis function name. If there is no separate > implementation, then name it an alias for the XXX_flush_cache_all function. I will do that, thanks for the review. Lorenzo -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
