Re: [PATCH 1/2] docs: Add advanced extended IRQ model description

[Tianyang Zhang]

在 2024/5/9 上午6:29, Randy Dunlap 写道:
> Hi--
>
> On 5/7/24 5:22 AM, Tianyang Zhang wrote:
> >  From 3C6000, Loongarch began to support advanced extended
> > interrupt mode, in which each CPU has an independent interrupt
> > vector number.This will enhance the architecture's ability
> > to support modern devices
> >
> > Signed-off-by: Tianyang Zhang <zhangtianyang@xxxxxxxxxxx>
> > ---
> >   .../arch/loongarch/irq-chip-model.rst         | 33 +++++++++++++++++
> >   .../zh_CN/arch/loongarch/irq-chip-model.rst   | 37 +++++++++++++++++--
> >   2 files changed, 67 insertions(+), 3 deletions(-)
> >
> > diff --git a/Documentation/arch/loongarch/irq-chip-model.rst b/Documentation/arch/loongarch/irq-chip-model.rst
> > index 7988f4192363..79228741d1b9 100644
> > --- a/Documentation/arch/loongarch/irq-chip-model.rst
> > +++ b/Documentation/arch/loongarch/irq-chip-model.rst
> > @@ -85,6 +85,39 @@ to CPUINTC directly::
> >       | Devices |
> >       +---------+
> >   
> > +Advanced Extended IRQ model
> > +=======================
> The === underline line needs to be at least as long as the line above it.
I will repair this problem
> > +
> > +In this model, IPI (Inter-Processor Interrupt) and CPU Local Timer interrupt go
> > +to CPUINTC directly, CPU UARTS interrupts go to LIOINTC, MSI interrupts go to AVEC,
> > +and then go to CPUINTC, Other devices interrupts go to PCH-PIC/PCH-LPC and gathered
>                    CPUINTC.
Thank you for the reminder
> > +by EIOINTC, and then go to CPUINTC directly::
> > +
> > + +-----+     +--------------------------+     +-------+
> > + | IPI | --> |           CPUINTC        | <-- | Timer |
> > + +-----+     +--------------------------+     +-------+
> > +              ^        ^             ^
> > +              |        |             |
> > +      +--------+  +---------+ +---------+     +-------+
> > +      | AVEC   |  | EIOINTC | | LIOINTC | <-- | UARTs |
> > +      +--------+  +---------+ +---------+     +-------+
> > +           ^            ^
> > +           |            |
> > +         +---------+  +---------+
> > +         |   MSI   |  | PCH-PIC |
> > +         +---------+  +---------+
> > +            ^          ^       ^
> > +            |          |       |
> > +    +---------+ +---------+ +---------+
> > +    | Devices | | PCH-LPC | | Devices |
> > +    +---------+ +---------+ +---------+
> > +                     ^
> > +                     |
> > +                +---------+
> > +                | Devices |
> > +                +---------+
> > +
> > +
> >   ACPI-related definitions
> >   ========================
> >   
> thanks.