From patchwork Wed Dec 14 18:04:09 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Palmer Dabbelt X-Patchwork-Id: 13073336 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9CB9BC4332F for ; Wed, 14 Dec 2022 18:32:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:To:From:Cc:MIME-Version:Message-Id:Date :Subject:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=Q1plqMK9i6tGsejuacKZKlVawby3oU9yB9P7D+ZDKy4=; b=cKf9ZIxoxqcV2J D4KXFytrhPSnmlHBlplY/2w30HoeRxkzJatziDWtC2sLMMXCC0bCSj+BI6kgcI4vjjXjFrFPMzjWQ cvLzhbw5V70UemavfI+qQZR4R9Tcl5UAwrIal7zULp3a1fmFj442hsic1bOSJ8U7rQWs3FRy024RK Bqt6q5TdjsgfUfgu1FOSA3VLraogC8QPhGdQzDYlStFKQqhCO826nTGTH3MqEDEypnTbdYaRmkQmg ZrmFlAI8boUFGMOv12s16tm316iJKAZCrpFoTE1W1TVZCHZOyRl63KlpbiBs1UR5smGfUNpmfkOK+ I6/IfCmYm3cN6q88Isiw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1p5WY0-001edq-2a; Wed, 14 Dec 2022 18:32:04 +0000 Received: from mail-pg1-x52a.google.com ([2607:f8b0:4864:20::52a]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1p5WXx-001eaw-H8 for linux-riscv@lists.infradead.org; Wed, 14 Dec 2022 18:32:03 +0000 Received: by mail-pg1-x52a.google.com with SMTP id 62so2543682pgb.13 for ; Wed, 14 Dec 2022 10:31:59 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rivosinc-com.20210112.gappssmtp.com; s=20210112; h=to:from:cc:content-transfer-encoding:mime-version:message-id:date :subject:from:to:cc:subject:date:message-id:reply-to; bh=tELdPw6cFVNcMyBhuIyOulB/MhXq/rKQ1MSMiPfWj5c=; b=y6Q59yYYpbQekqcn8P6vPhRbEADfwYvjlPI62C8YD2vXLb40XRQYIecXP+TjzB1GOT tcDSfSHDD7Uw9P7hrK0Q8yHEJEyAucCPUYd7IbO9ScJmETl0dTJW5LQSNfbXPUBlQVu3 Mn6pWksO7c49TcL0JLtGrmjcitT51OaAWGm4MJoJMljsuSu3bpAeUW2u6kKS3PzbVtRW yp/H1czioEipYvzWtU7TdBOGRkHMA5KLduBivzJKW/racpPMfI6KnxQ2EZESUQD7NV0V 0mZCnZsdEOlaub+s/UB0TRAcjasOefUi29XqARGOCcv86r7honzhsBzKnMbKnR7aUHvb IkdQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=to:from:cc:content-transfer-encoding:mime-version:message-id:date :subject:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=tELdPw6cFVNcMyBhuIyOulB/MhXq/rKQ1MSMiPfWj5c=; b=Ob/yr8XOFDyKOlNVWPy+ECBdq1h/lmUmqB72L7GGdoFtFlmgFJYkHNBScmPE1XiMoN KVJfbls/LimRyjEebj932EfCD+UAdD5zpFNcAdXmvQeMc4N9MVsPFDfSOltfz6sXFGQr oTV5y2B3Nq9cOFXl4iMlPT2L3sdhyjaPti/DPOcV17kFd4E3z5tSkokPy7dG6mbHfGqL 6nH/v2VmfWpkZmW33MXfyQCgNfNYeSdhCTdfPLhqnrza1+b9WEqxd0qiyMHcsFShr+0s 7J2aI30MCY8HcNBt88lAMszrnPACRd0io2ktB/snVgW+kUaC2tg5NuyEiBlcYsPpPsCp j96A== X-Gm-Message-State: ANoB5pmhXnKcuQbNSICxaJofBlQagGdYG3iuTojEWlEztVGjIqVpJrby m3GbV6TfK+/iMObWfT246qGPNUZ0qpUiUzgr X-Google-Smtp-Source: AA0mqf4HzKUoz5ydnwk633gHlvihbkPu5a+uyaupKo07EXeqhOttetSGXnQzPJJj0KTpewQOOM5JkA== X-Received: by 2002:aa7:81cb:0:b0:572:8b7d:f350 with SMTP id c11-20020aa781cb000000b005728b7df350mr28816199pfn.26.1671042718997; Wed, 14 Dec 2022 10:31:58 -0800 (PST) Received: from localhost ([135.180.226.51]) by smtp.gmail.com with ESMTPSA id d5-20020a621d05000000b005769436a23dsm153889pfd.218.2022.12.14.10.31.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 14 Dec 2022 10:31:57 -0800 (PST) Subject: [PATCH] RISC-V: Disable IPMMU_VMSA on rv32 Date: Wed, 14 Dec 2022 10:04:09 -0800 Message-Id: <20221214180409.7354-1-palmer@rivosinc.com> X-Mailer: git-send-email 2.38.1 MIME-Version: 1.0 Cc: Palmer Dabbelt From: Palmer Dabbelt To: linux-riscv@lists.infradead.org, arnd@arndb.de, iommu@lists.linux.dev X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221214_103201_808571_A77102DC X-CRM114-Status: UNSURE ( 8.45 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Without this I get a Kconfig warning and then subsequent build failure when building allmodconfig on rv32. WARNING: unmet direct dependencies detected for IOMMU_IO_PGTABLE_LPAE Depends on [n]: IOMMU_SUPPORT [=y] && (ARM || ARM64 || COMPILE_TEST [=y] && !GENERIC_ATOMIC64 [=y]) Selected by [y]: - IPMMU_VMSA [=y] && IOMMU_SUPPORT [=y] && (ARCH_RENESAS [=y] || COMPILE_TEST [=y] && !GENERIC_ATOMIC64 [=y]) linux/drivers/iommu/io-pgtable-arm.c: Assembler messages: linux/drivers/iommu/io-pgtable-arm.c:330: Error: unrecognized opcode `lr.d s4,0(s1)' linux/drivers/iommu/io-pgtable-arm.c:332: Error: unrecognized opcode `sc.d.rl a5,s6,0(s1)' make[5]: *** [linux/scripts/Makefile.build:250: drivers/iommu/io-pgtable-arm.o] Error 1 make[4]: *** [linux/scripts/Makefile.build:502: drivers/iommu] Error 2 make[3]: *** [linux/scripts/Makefile.build:502: drivers] Error 2 Signed-off-by: Palmer Dabbelt --- This one seems pretty ugly, but I like to at least have a workaround for the allmodconfig failures before sending up a PR. --- arch/riscv/configs/32-bit.config | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/riscv/configs/32-bit.config b/arch/riscv/configs/32-bit.config index f6af0f708df4..7a2fa9b37b1c 100644 --- a/arch/riscv/configs/32-bit.config +++ b/arch/riscv/configs/32-bit.config @@ -2,3 +2,4 @@ CONFIG_ARCH_RV32I=y CONFIG_32BIT=y # CONFIG_PORTABLE is not set CONFIG_NONPORTABLE=y +CONFIG_IPMMU_VMSA=n