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Wysocki" , Len Brown , Tomasz Jeznach , Joerg Roedel , Will Deacon , Robin Murphy , Atish Kumar Patra , Anup Patel , Andrew Jones , Sunil V L Subject: [PATCH v2 0/3] RISC-V: Add ACPI support for IOMMU Date: Tue, 10 Jun 2025 16:16:38 +0530 Message-ID: <20250610104641.700940-1-sunilvl@ventanamicro.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 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