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From: Haibo Xu <xiaobo55x@gmail.com>
Date: Sun, 18 Feb 2024 15:18:40 +0800
Message-ID: <CAJve8omH2NvqnTu2a2V=wwrQCiQrP=uzu3ttO1VkjJN0ZyRjMA@mail.gmail.com>
Subject: Re: [PATCH 1/4] ACPICA: SRAT: Add RISC-V RINTC affinity structure
To: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Haibo Xu <haibo1.xu@intel.com>, ajones@ventanamicro.com, sunilvl@ventanamicro.com, 
	Paul Walmsley <paul.walmsley@sifive.com>, Palmer Dabbelt <palmer@dabbelt.com>, 
	Albert Ou <aou@eecs.berkeley.edu>, Len Brown <lenb@kernel.org>, 
	Robert Moore <robert.moore@intel.com>, Conor Dooley <conor.dooley@microchip.com>, 
	Guo Ren <guoren@kernel.org>, Anup Patel <apatel@ventanamicro.com>, 
	Alexandre Ghiti <alexghiti@rivosinc.com>, Greentime Hu <greentime.hu@sifive.com>, 
	Jisheng Zhang <jszhang@kernel.org>, Sami Tolvanen <samitolvanen@google.com>, 
	=?UTF-8?B?Q2zDqW1lbnQgTMOpZ2Vy?= <cleger@rivosinc.com>, 
	Baoquan He <bhe@redhat.com>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, 
	Chen Jiahao <chenjiahao16@huawei.com>, Arnd Bergmann <arnd@arndb.de>, 
	James Morse <james.morse@arm.com>, Evan Green <evan@rivosinc.com>, 
	Samuel Holland <samuel.holland@sifive.com>, Marc Zyngier <maz@kernel.org>, 
	Tony Luck <tony.luck@intel.com>, Ard Biesheuvel <ardb@kernel.org>, Yuntao Wang <ytcoode@gmail.com>, 
	Dave Hansen <dave.hansen@linux.intel.com>, Alison Schofield <alison.schofield@intel.com>, 
	linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, 
	linux-acpi@vger.kernel.org, acpica-devel@lists.linux.dev
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On Mon, Feb 12, 2024 at 9:31=E2=80=AFPM Rafael J. Wysocki <rafael@kernel.or=
g> wrote:
>
> On Wed, Jan 31, 2024 at 3:18=E2=80=AFAM Haibo Xu <haibo1.xu@intel.com> wr=
ote:
> >
> > ACPICA commit 93caddbf2f620769052c59ec471f018281dc3a24
>
> Not really.
>
> > Add definition of RISC-V Interrupt Controller(RINTC)
> > affinity structure which was approved by UEFI forum
> > and will be part of next ACPI spec version(6.6).
> >
> > Link: https://github.com/acpica/acpica/commit/93caddbf
>
> And this doesn't point to an upstream ACPICA PR.
>

Hi Rafael,

This patch was generated by the acpica/generate/linux/gen-patch.sh and
should be merged
through the ACPICA project. To include it in this series is just to
serve as a reference.

BTW, the corresponding ACPICA patch is still under review and please
refer to the following
link for the status.

https://github.com/acpica/acpica/pull/926

Regards,
Haibo

> > Signed-off-by: Haibo Xu <haibo1.xu@intel.com>
> > ---
> >  include/acpi/actbl3.h | 18 +++++++++++++++++-
> >  1 file changed, 17 insertions(+), 1 deletion(-)
> >
> > diff --git a/include/acpi/actbl3.h b/include/acpi/actbl3.h
> > index c080d579a546..5202e3fc9b41 100644
> > --- a/include/acpi/actbl3.h
> > +++ b/include/acpi/actbl3.h
> > @@ -192,7 +192,8 @@ enum acpi_srat_type {
> >         ACPI_SRAT_TYPE_GIC_ITS_AFFINITY =3D 4,    /* ACPI 6.2 */
> >         ACPI_SRAT_TYPE_GENERIC_AFFINITY =3D 5,    /* ACPI 6.3 */
> >         ACPI_SRAT_TYPE_GENERIC_PORT_AFFINITY =3D 6,       /* ACPI 6.4 *=
/
> > -       ACPI_SRAT_TYPE_RESERVED =3D 7     /* 7 and greater are reserved=
 */
> > +       ACPI_SRAT_TYPE_RINTC_AFFINITY =3D 7,      /* ACPI 6.6 */
> > +       ACPI_SRAT_TYPE_RESERVED =3D 8     /* 8 and greater are reserved=
 */
> >  };
> >
> >  /*
> > @@ -296,6 +297,21 @@ struct acpi_srat_generic_affinity {
> >  #define ACPI_SRAT_GENERIC_AFFINITY_ENABLED     (1)     /* 00: Use affi=
nity structure */
> >  #define ACPI_SRAT_ARCHITECTURAL_TRANSACTIONS   (1<<1)  /* ACPI 6.4 */
> >
> > +/* 7: RINTC Affinity (ACPI 6.6) */
> > +
> > +struct acpi_srat_rintc_affinity {
> > +       struct acpi_subtable_header header;
> > +       u16 reserved;           /* Reserved, must be zero */
> > +       u32 proximity_domain;
> > +       u32 acpi_processor_uid;
> > +       u32 flags;
> > +       u32 clock_domain;
> > +};
> > +
> > +/* Flags for struct acpi_srat_rintc_affinity */
> > +
> > +#define ACPI_SRAT_RINTC_ENABLED     (1)        /* 00: Use affinity str=
ucture */
> > +
> >  /*********************************************************************=
**********
> >   *
> >   * STAO - Status Override Table (_STA override) - ACPI 6.0
> > --
> > 2.34.1
> >