On Mon, 24 Feb 2014, Will Deacon wrote: > On Fri, Jan 17, 2014 at 05:45:04AM +0000, Vince Weaver wrote: > > On Thu, 16 Jan 2014, Peter Zijlstra wrote: > > > > > Yeah I suppose we could do something like that. Maybe something like: > > > > > > # cat /sys/bus/event_source/devices/cpu/flags > > > int precise filter > > > > wouldn't that violate the "one value per file" rule? > > > > I guess we could also stick it in the mmap page somewhere, as tools like > > PAPI already have to check there for things like rdpmc support. > > > > > > Anyway, here's a first pass at a generic fix for this issue. I'm sure the > > code is pretty horrible, I don't usually mess with the perf code at this > > level. I haven't tested yet as it touched enough files that the rasp-pi > > is going to take a few hours to finish compiling. > > > > Am I on the right track, or totally off here? > > Where did we get to with this? If the generic changes are going to take some > time, I'm happy to take a temporary (non-invasive) fix in the ARM backend > while > you sort out the core.
OK, let me revisit the patches. The last set of generic ones I sent out actually was broken on ARM and I've been meaning to straighten things out and send a proper follow up patch set but got distracted by other perf related issues. Vince -- 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/
