Thread (7 messages) 7 messages, 3 authors, 2015-10-30

[PATCH v4] EDAC: Add ARM64 EDAC

From: mark.rutland@arm.com (Mark Rutland)
Date: 2015-10-30 17:32:55
Also in: linux-devicetree, lkml

quoted
quoted
* Interaction with firmware
- When/do we handle interrupts?
We can a properties in dt bindings:

1) "num-interrupts = 1" - number of interrupt count. One interrupts per cluster
    e.g if you have 4 cluster then num-interrupts=4.
2) interrupts = <0, 92, 0> <0, 94, 0> <0, 96, 0> <0, 98, 0>  // interrupt mapping

If num-interrupts = 0, then firmware handles interrupts. Optionally we can use HEST FIRMWARE-FIRST
bit, if bit is set then firmware is handling the interrupt otherwise use DT information.
You won't have the HEST and DT information at the same time, given that
at runtime the kernel uses one of ACPI or DT.
From a quick look at the HEST definition, I don't doesn't seem like it's
possible to describe this feature -- there's no error source descriptor
for it and the generic hardware error source is not applicable.

So I'm worried that it may not be possible to use this feature with
ACPI.

Thanks,
Mark.
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help