From: "Måns Rullgård" <mans@mansr.com>
To: linux-omap@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Subject: Re: OMAP4: IRQ line of CortexA9 performance monitor
Date: Mon, 21 Feb 2011 17:18:57 +0000 [thread overview]
Message-ID: <yw1x62sd1f26.fsf@unicorn.mansr.com> (raw)
In-Reply-To: AANLkTin3q+rv+fcgCE6nwTN+=v_uQzT-Sn++gr6ekXcp@mail.gmail.com
Ming Lei <tom.leiming@gmail.com> 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.
--
Måns Rullgård
mans@mansr.com
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next prev parent reply other threads:[~2011-02-21 17:19 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-21 16:26 OMAP4: IRQ line of CortexA9 performance monitor Ming Lei
2011-02-21 17:18 ` Måns Rullgård [this message]
2011-02-21 17:53 ` Santosh Shilimkar
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