> -----Original Message----- > From: linux-omap-owner@xxxxxxxxxxxxxxx [mailto:linux-omap- > owner@xxxxxxxxxxxxxxx] On Behalf Of Måns Rullgård > Sent: Monday, February 21, 2011 10:49 PM > To: linux-omap@xxxxxxxxxxxxxxx > Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx > Subject: Re: OMAP4: IRQ line of CortexA9 performance monitor > > Ming Lei <tom.leiming@xxxxxxxxx> writes: > > > Hi, > > > > From chapter 17 of "Interrupt controller", OMAP4 TRM, I can't > > find what is the interrupt line of CortexA9 performance monitor > > in omap4. Seems without this information, we can't use perf on > > omap4. > > > > Any suggestions or ideas about it? > > The PMU interrupt is routed through the CTI, which needs to be > properly > configured. Unfortunately, the CTI is not documented in the public > TRM, > and nobody has seen fit to submit a patch suitable for upstream. > Some dirty hacks have been posted, though. > Mans is right. Last time I looked at this, the OMAP4 PMU support needed some hacky code and was not fitting to the generic PMU framework. I will take a second look at it and see if a patch can be generated for upstream. Regards, Santosh -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
