Re: [PATCH 02/24] ACPICA: MADT: Add RISC-V INTC interrupt controller

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On Mon, Jan 30, 2023 at 11:52:03PM +0530, Sunil V L wrote:
> The ECR to add RISC-V INTC interrupt controller is approved by
> the UEFI forum and will be availabl in the next revision of

nit: available

> the ACPI specification.
> 
> This patch is not yet merged in ACPICA but a PR is raised.
> 
> ACPICA PR: https://github.com/acpica/acpica/pull/804

I had a quick check with git grep, and as this doesn't appear to be a
regular pattern in the history, so could you please make this a regular
Link: trailer?

Cheers,
Conor.

> Reference: Mantis ID: 2348
> 
> Cc: Robert Moore <robert.moore@xxxxxxxxx>
> Cc: acpica-devel@xxxxxxxxxxxxxxxxxxxxxxxxx
> Signed-off-by: Sunil V L <sunilvl@xxxxxxxxxxxxxxxx>
> ---
>  include/acpi/actbl2.h | 21 ++++++++++++++++++++-
>  1 file changed, 20 insertions(+), 1 deletion(-)
> 
> diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h
> index b2973dbe37ee..c432fd15db65 100644
> --- a/include/acpi/actbl2.h
> +++ b/include/acpi/actbl2.h
> @@ -891,7 +891,8 @@ enum acpi_madt_type {
>  	ACPI_MADT_TYPE_MSI_PIC = 21,
>  	ACPI_MADT_TYPE_BIO_PIC = 22,
>  	ACPI_MADT_TYPE_LPC_PIC = 23,
> -	ACPI_MADT_TYPE_RESERVED = 24,	/* 24 to 0x7F are reserved */
> +	ACPI_MADT_TYPE_RINTC = 24,
> +	ACPI_MADT_TYPE_RESERVED = 25,	/* 25 to 0x7F are reserved */
>  	ACPI_MADT_TYPE_OEM_RESERVED = 0x80	/* 0x80 to 0xFF are reserved for OEM use */
>  };
>  
> @@ -1250,6 +1251,24 @@ enum acpi_madt_lpc_pic_version {
>  	ACPI_MADT_LPC_PIC_VERSION_RESERVED = 2	/* 2 and greater are reserved */
>  };
>  
> +/* 24: RISC-V INTC */
> +struct acpi_madt_rintc {
> +	struct acpi_subtable_header header;
> +	u8 version;
> +	u8 reserved;
> +	u32 flags;
> +	u64 hart_id;
> +	u32 uid;		/* ACPI processor UID */
> +};
> +
> +/* Values for RISC-V INTC Version field above */
> +
> +enum acpi_madt_rintc_version {
> +	ACPI_MADT_RINTC_VERSION_NONE = 0,
> +	ACPI_MADT_RINTC_VERSION_V1 = 1,
> +	ACPI_MADT_RINTC_VERSION_RESERVED = 2	/* 2 and greater are reserved */
> +};
> +
>  /* 80: OEM data */
>  
>  struct acpi_madt_oem_data {
> -- 
> 2.38.0
> 

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