Re: [PATCH v2 1/3] ACPICA: ACPI 6.4: MADT: add Multiprocessor Wakeup Mailbox Structure

[Kuppuswamy, Sathyanarayanan]

On 4/23/21 5:33 AM, Rafael J. Wysocki wrote:
> On Thu, Apr 22, 2021 at 11:47 PM Kuppuswamy Sathyanarayanan
> <sathyanarayanan.kuppuswamy@xxxxxxxxxxxxxxx> wrote:
> > ACPICA commit f1ee04207a212f6c519441e7e25397649ebc4cea
> >
> > Add Multiprocessor Wakeup Mailbox Structure definition. It is useful
> > in parsing MADT Wake table.
> >
> > Link: https://github.com/acpica/acpica/commit/f1ee0420
> > Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@xxxxxxxxxxxxxxx>
>
> I'm expecting to receive this patch from Erik at one point, so I'm
> guessing that it's been added to this series for reference.

Yes. Since I had dependent patches, Erik sent it to me for
submission.

> > ---
> >   include/acpi/actbl2.h | 14 ++++++++++++++
> >   1 file changed, 14 insertions(+)
> >
> > diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h
> > index b2362600b9ff..7dce422f6119 100644
> > --- a/include/acpi/actbl2.h
> > +++ b/include/acpi/actbl2.h
> > @@ -733,6 +733,20 @@ struct acpi_madt_multiproc_wakeup {
> >          u64 base_address;
> >   };
> >
> > +#define ACPI_MULTIPROC_WAKEUP_MB_OS_SIZE       2032
> > +#define ACPI_MULTIPROC_WAKEUP_MB_FIRMWARE_SIZE 2048
> > +
> > +struct acpi_madt_multiproc_wakeup_mailbox {
> > +       u16 command;
> > +       u16 reserved;           /* reserved - must be zero */
> > +       u32 apic_id;
> > +       u64 wakeup_vector;
> > +       u8 reserved_os[ACPI_MULTIPROC_WAKEUP_MB_OS_SIZE];       /* reserved for OS use */
> > +       u8 reserved_firmware[ACPI_MULTIPROC_WAKEUP_MB_FIRMWARE_SIZE];   /* reserved for firmware use */
> > +};
> > +
> > +#define ACPI_MP_WAKE_COMMAND_WAKEUP    1
> > +
> >   /*
> >    * Common flags fields for MADT subtables
> >    */
> > --
> > 2.25.1

--
Sathyanarayanan Kuppuswamy
Linux Kernel Developer