linux-kernel - Re: [PATCH v3 0/3] RISC-V: Add ACPI support for IOMMU

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Message-ID: <aGIJuiSuZs17DSiM@sunil-laptop>
Date: Mon, 30 Jun 2025 09:21:22 +0530
From: Sunil V L <sunilvl@...tanamicro.com>
To: Tomasz Jeznach <tjeznach@...osinc.com>
Cc: Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>, Alexandre Ghiti <alex@...ti.fr>,
	"Rafael J . Wysocki" <rafael@...nel.org>,
	Len Brown <lenb@...nel.org>, Tomasz Jeznach <tjeznach@...osinc.com>,
	Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>,
	Robin Murphy <robin.murphy@....com>,
	Anup Patel <apatel@...tanamicro.com>,
	Atish Patra <atishp@...osinc.com>, linux-kernel@...r.kernel.org,
	linux-riscv@...ts.infradead.org, linux-acpi@...r.kernel.org,
	iommu@...ts.linux.dev, Andrew Jones <ajones@...tanamicro.com>
Subject: Re: [PATCH v3 0/3] RISC-V: Add ACPI support for IOMMU

Hi Tomasz,

Could you please help reviewing this series?

Thanks!
Sunil
On Mon, Jun 30, 2025 at 09:18:00AM +0530, Sunil V L wrote:
> This series adds support for RISC-V IOMMU on ACPI based platforms.
> RISC-V IO Mapping Table (RIMT) is a new static ACPI table [1] introduced
> to communicate IOMMU information to the OS.
> 
> [1] - https://github.com/riscv-non-isa/riscv-acpi-rimt/releases/download/v1.0/rimt-spec.pdf
> 
> Changes since v2:
> 	1) Rebased to 6.16-rc4
> 	2) Removed Anup's SOB and link tags added by mistake in v2.
> 
> Changes since v1:
> 	1) Rebased to v6.16-rc1.
> 	2) Dropped ACPICA patch since it is already available in 6.16-rc1.
> 	3) Added Rafael's ACK.
> 	4) Fixed few issues found by bots.
> 
> 
> Sunil V L (3):
>   ACPI: RISC-V: Add support for RIMT
>   ACPI: scan: Add support for RISC-V in acpi_iommu_configure_id()
>   iommu/riscv: Add ACPI support
> 
>  MAINTAINERS                          |   1 +
>  arch/riscv/Kconfig                   |   1 +
>  drivers/acpi/Kconfig                 |   4 +
>  drivers/acpi/riscv/Kconfig           |   7 +
>  drivers/acpi/riscv/Makefile          |   1 +
>  drivers/acpi/riscv/init.c            |   2 +
>  drivers/acpi/riscv/init.h            |   1 +
>  drivers/acpi/riscv/rimt.c            | 523 +++++++++++++++++++++++++++
>  drivers/acpi/scan.c                  |   9 +-
>  drivers/iommu/riscv/iommu-platform.c |  17 +-
>  drivers/iommu/riscv/iommu.c          |  10 +
>  include/linux/acpi_rimt.h            |  26 ++
>  12 files changed, 599 insertions(+), 3 deletions(-)
>  create mode 100644 drivers/acpi/riscv/Kconfig
>  create mode 100644 drivers/acpi/riscv/rimt.c
>  create mode 100644 include/linux/acpi_rimt.h
> 
> -- 
> 2.43.0
>