Hi, Thomas
在 2024/12/9 上午4:22, Thomas Gleixner 写道:
On Sat, Dec 07 2024 at 17:11, Huacai Chen wrote:
On Sat, Dec 7, 2024 at 11:31 AM Tianyang Zhang
<zhangtianyang@xxxxxxxxxxx> wrote:
This patch enables the advanced interrupt controller function under
multiple-node of 3C600. The topology of the advanced interrupt controller
is consistent with NUMA node. We check the enable status of the node where
each CPU is located once when it goes online, which may cause some
additional operations, but it can ensure that the advanced interrupt
controller can still be used in situations where some CPUs cannot start
The whole can be reworded:
Currently we only enable one chip's advanced interrupt controller
(AVEC) in hardware, so multi-chip machines with Loongson-3C6000 don't
work. This patch enables it for every chip (In theory every chip needs
to be enabled only once, but for simplicity we enable it on every core
in the CPU online hooks).
It want's to be reworded without 'we' and 'this patch':
avecintc_init() enables the Advanced Interrupt Controller (AVEC) of
the boot CPU node, but nothing enables the AVEC on secondary nodes.
Move the enablement to the CPU hotplug callback so that secondary
nodes get the AVEC enabled too. In theory enabling it once per node
would be sufficient, but redundant enabling does no hard, so keep the
code simple and do it unconditionally.
Thanks,
tglx
Ok, I got it , thanks
