Messages in this thread | | | Date | Tue, 24 Mar 2015 22:14:06 +0100 | From | Peter Zijlstra <> | Subject | Re: [PATCH 1/4] tile: support arch_irq_work_raise |
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On Tue, Mar 24, 2015 at 03:21:32PM -0400, cmetcalf@ezchip.com wrote: > From: Chris Metcalf <cmetcalf@ezchip.com> > > Tile includes a hypervisor hook to deliver messages to arbitrary > tiles, so we can use that to raise an interrupt as soon as > possible on our own core. Unfortunately the Tilera hypervisor > disabled that support on principle in previous releases, but > it will be available in MDE 4.3.4 and later.
Can you program a timer in the (recent) past which will instantly trigger an interrupt? This is what PPC64 does to implement the self-ipi.
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