From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pf1-f182.google.com (mail-pf1-f182.google.com [209.85.210.182]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3EFA078F4E for ; Mon, 30 Jun 2025 03:48:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.182 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751255293; cv=none; b=BjFXCl3gvlkI2iTQb1mhNLJxFfIX5DrSFpqqbosUtcPF82UYqXLjwuREm+gsaAjYOOyC759ybSRpBd9X/0L591d83nimw9lB4rRATWknGT/oPpB6rdRTvF80U5r6GyROMI9zzCxPT/qr9MwCvdJBzIposzytAKdu2ucPsuNxxak= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751255293; c=relaxed/simple; bh=LBM4mSRpBpLLuf5KUL4CdOdRDoNegAjkYl+r+qplyOQ=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=YCQJgbN8BbFkluV64wMGokGFMh8BnRqv5GzJuu/0ds3XTAibi61ol+GzoCXUtZ2eZZiWzuOArAOWhoMXw1eCZ/yqog6BfxHC7BvdOHsBURv7KQ7s9Limv/DkVhgNuLmkrmXXW6sifNvlYDvCxilJfUQE/2nAvAnRoOE+hcB22/c= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ventanamicro.com; spf=pass smtp.mailfrom=ventanamicro.com; dkim=pass (2048-bit key) header.d=ventanamicro.com header.i=@ventanamicro.com header.b=cAOpQsJS; arc=none smtp.client-ip=209.85.210.182 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ventanamicro.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ventanamicro.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ventanamicro.com header.i=@ventanamicro.com header.b="cAOpQsJS" Received: by mail-pf1-f182.google.com with SMTP id d2e1a72fcca58-7481600130eso2119873b3a.3 for ; Sun, 29 Jun 2025 20:48:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ventanamicro.com; s=google; t=1751255291; x=1751860091; darn=lists.linux.dev; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=yFeBhYBHOrC/0c43zTo39sGlheeTzLpojcRGicgsOS8=; b=cAOpQsJSVJyL4U54IbWcM8y7OiocL8F9JxAZAQMekDzkVVpGp7zvOhiQy8L18nOTwS AUtbzUpKMF1lepkrZzSWLLychYTIkJdszmpHN7UGLV6YQdICmkocgwJrNcqnzFqFdAmz Q/pv9RH0+8vUwBFnhI6f0iGhiHu31Fligoar8xWk8H0H493IvzpDIakpNYbfQzmkBLs/ RHpdwX4CnIJ1NA2+s6JCKOvGarzhFDMs0iaiOnVxJZbl7bU+yp3g0AM8DqZy99kB0ut9 dorD6Viz4gjf03+ioEre/Ng5QqKo6m6MrWtgQXoAxgvrBebKxFddVc7WaNVhHKZQe0fa qQsw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1751255291; x=1751860091; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=yFeBhYBHOrC/0c43zTo39sGlheeTzLpojcRGicgsOS8=; b=MUq7pYqapGsZg+an2KyZE1cnGPUi1J2Tv4+1uWZu0De3upL6FhE6vA7Eb4EUAeLe5p bcznXOmZpjkJ9lqwcZWQjT09IHtpvH4I6TYS6Tgo3WQUrUgYa689RjkPkvbP2VZjd3Xl B44RORfdiofhQgRfOi5GSddO0Z8xqIegJzNtURRrOeGLlovhrPUjqhS6C/XG8t4UdN+A RMLJgPFOUELagIz6BR3ShsH7AuoyNcXTEgivfn6vRMkK/ToSM8nKfFLLkd2ucOFo8NIO SnHSHggueEiBGa1kAhq4B2XUf479zPG2BuOPD+0/qkNjHBUIsqpHA6ZLQPWAEvhmkF8E FNbA== X-Forwarded-Encrypted: i=1; AJvYcCUvOapy1AQS8fWUG4ViftvYs1oSQSdFct4vErWILpUWOdFaZsJNNwfU4bwy6fflD+gQLYsIew==@lists.linux.dev X-Gm-Message-State: AOJu0YycxdKmm7+dZkE8y+pQzRbAeaDtfNt5h7vjQN9IRZSGdVYzsae0 Ej2z1FhVr9iYHoEpfM8BAu6+3banuR9mMjzEKNlCmcMQGeN47r8OrNurJjpEx0jQPio= X-Gm-Gg: ASbGnctrHixLYNLXX9ke3yh3Tj4oUZ2s4o2gSDVC5zXgxm6ExaBdUACifWqe9HIv8Kv e6wR5V+XGXtxIfg3eCuHvJWN1Sf7AXNWKRdK/LeRQKwMJnj1QqwPgEEffWlHhTnsuGBfWxoQqxt Waa9aFBu2QHOJ+ckOCK9rYNlCbCOyq7DjYPRczQVdktU/8KuevHEI8p+OBxNwZTNPnsAiQkkltq aHNDD1lzDXwqkJJb8pBwga9jV3wHPaK/rtMIKFRUv1RrFSH5+NaFgHk9uKfNKhGg4B8wnc1bxhm FoV5Uh8iUWDhA23HS3E5aHD7EtYPgq6zZVsJ8C/tZTCgk8l+kCr+xAkqeTrPIBm4iV9glfsP X-Google-Smtp-Source: AGHT+IEzTTqz9HI75CbRtfblsCPZ+bl54XYhiD9/Nlz3V+rIBZOaNxNzGv638imyLy83nUUnGEXiUg== X-Received: by 2002:a05:6a00:3e25:b0:748:2f4e:ab4e with SMTP id d2e1a72fcca58-74af6fcf67emr16315764b3a.11.1751255291494; Sun, 29 Jun 2025 20:48:11 -0700 (PDT) Received: from sunil-pc.Dlink ([106.51.195.230]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-74af57efaecsm7837862b3a.161.2025.06.29.20.48.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 29 Jun 2025 20:48:10 -0700 (PDT) From: Sunil V L To: linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, linux-acpi@vger.kernel.org, iommu@lists.linux.dev Cc: Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , "Rafael J . Wysocki" , Len Brown , Tomasz Jeznach , Joerg Roedel , Will Deacon , Robin Murphy , Anup Patel , Atish Patra , Andrew Jones , Sunil V L Subject: [PATCH v3 0/3] RISC-V: Add ACPI support for IOMMU Date: Mon, 30 Jun 2025 09:18:00 +0530 Message-ID: <20250630034803.1611262-1-sunilvl@ventanamicro.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: iommu@lists.linux.dev 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 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