12 Sep
2014
12 Sep
'14
7:48 p.m.
On 09/12/2014 10:00 AM, Hanjun Guo wrote:
From: Tomasz Nowicki tomasz.nowicki@linaro.org
ACPI kernel uses MADT table for proper GIC initialization. It needs to parse GIC related subtables, collect CPU interface and distributor addresses and call driver initialization function (which is hardware abstraction agnostic). In a similar way, FDT initialize GICv1/2.
NOTE: This commit allow to initialize GICv1/2 basic functionality. GICv2 vitalization extension, GICv3/4 and ITS are considered as next steps.
Aside: A request to specifically update the flags in ACPI to indicate GICv3/v4 systems has been filed for a future spec revision.
Jon.