Thread (1 message) 1 message, 1 author, 2015-09-18
  • (off-list ancestor, not in this archive)
  • Recent GIC v1 patch · Måns Rullgård <hidden> · 2015-09-18

Recent GIC v1 patch

From: Måns Rullgård <hidden>
Date: 2015-09-18 12:40:27

Marc Zyngier [off-list ref] writes:
On 17/09/15 18:22, Mason wrote:
quoted
On 17/09/2015 18:33, Marc Zyngier wrote:
quoted
Hi Mason,

On 17/09/15 16:55, Mason wrote:
quoted
Hello Thomas, Marc,

Mans pointed me to a recent patch of yours.
irqchip/gic: Use IRQD_FORWARDED_TO_VCPU flag
Get rid of the handler_data abuse.

I'm using a Cortex A9 based SoC. The platform's interrupt
controller is cascaded into the GIC. I've been trying to
get this to work for two weeks with no success.

Details can be found here:
http://thread.gmane.org/gmane.linux.ports.arm.kernel/440327

Do you think your patch my help with my situation?
Not sure. A GICv1 shouldn't use EOImode==1 at all, so I don't quite see
how you end-up there. Also, you seem to be using 4.2, and this code only
landed during the 4.3 merge window.
Sorry for being unclear. I'm having problems /without/ the patch,
and Mans suggested I try the patch.
But that patch will only apply if you run 4.3, because it fixes an issue
in another patch that only exists in 4.3.
OK, forget I said anything then.  I just saw someone mention it in
connection with a BCM chip and thought it might be related without
digging deeper.  Nobody is paying me to do that.

-- 
M?ns Rullg?rd
mans at mansr.com
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