On Tue, 2014-07-10 at 10:48:18 UTC, Michael Neuling wrote: > From: Ian Munsie <imun...@au1.ibm.com> > > This adds the base cxl support that needs to be build into the kernel to use > cxl as a module. This is needed so that the cxl call backs from the core > powerpc mm code always exist irrespective of if the cxl module is loaded or > not. This is similar to how cell works with CONFIG_SPU_BASE. > > This adds a cxl_slbia() call (similar to spu_flush_all_slbs()) which checks > for > the cxl module being loaded. If the modules is not loaded we return, otherwise > we call into the cxl SLB invalidation code. > > This also adds the cxl_ctx_in_use() function for use in the mm code to see if > any cxl contexts are currently in use. This is used by the tlbie() to > determine if it can do local TLB invalidations or not. This also adds get/put > calls for the cxl driver module to refcount the active cxl contexts.
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