On Thu, 2012-09-27 at 21:31 -0700, Andi Kleen wrote: > /* > + * Also filter out TSX bits. > + */ > +#define TSX_FIXED_EVENT_CONSTRAINT(c, n) \ > + EVENT_CONSTRAINT(c, (1ULL << (32+n)), \ > + X86_RAW_EVENT_MASK|HSW_INTX|HSW_INTX_CHECKPOINTED)
How volatile are those bits? Will the re-appear in future chips or are they prone to get re-assigned different semantics in future chips? If they're 'stable' we might as well add then to FIXED_EVENT_CONSTRAINT, its not like those bits would ever appear on previous hardware. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
