Catalin Marinas wrote: > > Hmm, but then we can't compile in SMP for single core systems and > > keep it bootable on single core v6? > > Not with the current kernel since it hardcodes the shareability bit in > the page tables and the LDREX/STREX operations don't work as expected on > uniprocessor hardware.
My understanding of LDREX/STREX is that it's allowed to be quite different on uniprocessors (and CPU-local activity on SMP), but if it's used properly it still works ok. Can you say a bit more about assumptions made by the kernel using LDREX/STREX that fail on uniprocessor hardware? Is it just the shareability bit in page tables having the wrong value? Thanks, -- Jamie -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
