From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Kumar Gala <galak@kernel.crashing.org>
Cc: linuxppc-dev@ozlabs.org
Subject: Re: [PATCH v2] powerpc: Add support for CoreInt delivery of interrupts on MPIC
Date: Fri, 20 Mar 2009 16:48:29 +1100 [thread overview]
Message-ID: <1237528109.25062.568.camel@pasglop> (raw)
In-Reply-To: <1236784730-616-1-git-send-email-galak@kernel.crashing.org>
On Wed, 2009-03-11 at 10:18 -0500, Kumar Gala wrote:
> CoreInt provides a mechansim to deliver the IRQ vector directly
> into the core on an interrupt (via the SPR EPR) rather than having
> to go IACK on the PIC. This is suppose to provide an improvment
> in interrupt latency by reducing the time to get the IRQ vector.
>
> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
> ---
> * Fixed MPIC_GREG_GCONF_COREINT flag to be 0x60000000 as per spec and pointed about by Dave
Are you sure ? That's 2 bits ...
Ben.
next prev parent reply other threads:[~2009-03-20 5:48 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-11 15:18 [PATCH v2] powerpc: Add support for CoreInt delivery of interrupts on MPIC Kumar Gala
2009-03-20 5:48 ` Benjamin Herrenschmidt [this message]
2009-03-20 11:47 ` Kumar Gala
2009-03-20 22:08 ` Benjamin Herrenschmidt
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