From patchwork Mon Dec 21 11:05:33 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Huacai Chen X-Patchwork-Id: 11984499 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-22.0 required=3.0 tests=BAYES_00,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1CFBDC433E0 for ; Mon, 21 Dec 2020 11:07:57 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 44C9720757 for ; Mon, 21 Dec 2020 11:07:55 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 44C9720757 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:58752 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1krJ2g-0002eR-Pm for qemu-devel@archiver.kernel.org; Mon, 21 Dec 2020 06:07:54 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:53190) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1krJ1a-00029T-7Z for qemu-devel@nongnu.org; Mon, 21 Dec 2020 06:06:46 -0500 Received: from mail.kernel.org ([198.145.29.99]:51414) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1krJ1X-0005Zc-Or for qemu-devel@nongnu.org; Mon, 21 Dec 2020 06:06:45 -0500 From: Huacai Chen Authentication-Results: mail.kernel.org; dkim=permerror (bad message/signature format) To: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= Subject: [PATCH V19 0/5] mips: Add Loongson-3 machine support Date: Mon, 21 Dec 2020 19:05:33 +0800 Message-Id: <20201221110538.3186646-1-chenhuacai@kernel.org> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 Received-SPF: pass client-ip=198.145.29.99; envelope-from=chenhuacai@kernel.org; helo=mail.kernel.org X-Spam_score_int: -68 X-Spam_score: -6.9 X-Spam_bar: ------ X-Spam_report: (-6.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_HI=-5, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Aleksandar Rikalo , Huacai Chen , qemu-devel@nongnu.org, Aleksandar Markovic , Aurelien Jarno Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Loongson-3 CPU family include Loongson-3A R1/R2/R3/R4 and Loongson-3B R1/R2. Loongson-3A R1 is the oldest and its ISA is the smallest, while Loongson-3A R4 is the newest and its ISA is almost the superset of all others. To reduce complexity, in QEMU we just define two CPU types: 1, "Loongson-3A1000" CPU which is corresponding to Loongson-3A R1. It is suitable for TCG because Loongson-3A R1 has fewest ASE. 2, "Loongson-3A4000" CPU which is corresponding to Loongson-3A R4. It is suitable for KVM because Loongson-3A R4 has the VZ ASE. Loongson-3 lacks English documents. I've tried to translated them with translate.google.com, and the machine translated documents (together with their original Chinese versions) are available here. Loongson-3A R1 (Loongson-3A1000) User Manual Part 1: http://ftp.godson.ac.cn/lemote/3A1000_p1.pdf http://ftp.godson.ac.cn/lemote/Loongson3A1000_processor_user_manual_P1.pdf (Chinese Version) User Manual Part 2: http://ftp.godson.ac.cn/lemote/3A1000_p2.pdf http://ftp.godson.ac.cn/lemote/Loongson3A1000_processor_user_manual_P2.pdf (Chinese Version) Loongson-3A R2 (Loongson-3A2000) User Manual Part 1: http://ftp.godson.ac.cn/lemote/3A2000_p1.pdf http://ftp.godson.ac.cn/lemote/Loongson3A2000_user1.pdf (Chinese Version) User Manual Part 2: http://ftp.godson.ac.cn/lemote/3A2000_p2.pdf http://ftp.godson.ac.cn/lemote/Loongson3A2000_user2.pdf (Chinese Version) Loongson-3A R3 (Loongson-3A3000) User Manual Part 1: http://ftp.godson.ac.cn/lemote/3A3000_p1.pdf http://ftp.godson.ac.cn/lemote/Loongson3A3000_3B3000usermanual1.pdf (Chinese Version) User Manual Part 2: http://ftp.godson.ac.cn/lemote/3A3000_p2.pdf http://ftp.godson.ac.cn/lemote/Loongson3A3000_3B3000usermanual2.pdf (Chinese Version) Loongson-3A R4 (Loongson-3A4000) User Manual Part 1: http://ftp.godson.ac.cn/lemote/3A4000_p1.pdf http://ftp.godson.ac.cn/lemote/3A4000user.pdf (Chinese Version) User Manual Part 2: I'm sorry that it is unavailable now. And human-translated documents (W.I.P) are available here now: https://github.com/loongson-community/docs/tree/master/English-translation-of-Loongson-manual Both KVM and TCG are available now! We now already have a full functional Linux kernel (based on Linux-5.4.x LTS) here: https://github.com/chenhuacai/linux Of course the upstream kernel is also usable (the kvm host side and guest side have both been upstream in Linux-5.9): https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git How to use QEMU/Loongson-3? 1, Download kernel source from the above URL; 2, Build a kernel with arch/mips/configs/loongson3_{def,hpc}config; 3, Boot a Loongson-3A4000 host with this kernel (for KVM mode); 4, Build QEMU-master with this patchset; 5, modprobe kvm (only necessary for KVM mode); 6, Use QEMU with TCG: qemu-system-mips64el -M loongson3-virt,accel=tcg -cpu Loongson-3A1000 -kernel -append ... Use QEMU with KVM: qemu-system-mips64el -M loongson3-virt,accel=kvm -cpu Loongson-3A4000 -kernel -append ... The "-cpu" parameter is optional here and QEMU will use the correct type for TCG/KVM automatically. V1 -> V2: 1, Add a cover letter; 2, Improve CPU definitions; 3, Remove LS7A-related things (Use GPEX instead); 4, Add a description of how to run QEMU/Loongson-3. V2 -> V3: 1, Fix all possible checkpatch.pl errors and warnings. V3 -> V4: 1, Sync code with upstream; 2, Remove merged patches; 3, Fix build failure without CONFIG_KVM; 4, Add Reviewed-by: Aleksandar Markovic . V4 -> V5: 1, Improve coding style; 2, Remove merged patches; 3, Rename machine name from "loongson3" to "loongson3-virt"; 4, Rework the "loongson3-virt" machine to drop any ISA things; 5, Rework "hw/mips: Implement the kvm_type() hook in MachineClass"; 6, Add Jiaxun Yang as a reviewer of Loongson-3. V5 -> V6: 1, Fix license preamble; 2, Improve commit messages; 3, Add hw/intc/loongson_liointc.c to MAINTAINERS; 4, Fix all possible checkpatch.pl errors and warnings. V7 and V8 have only one patch (machine definition) with some minor improvements. V8 -> V9: 1, Update KVM type definition from kernel; 2, Fix PageMask with variable page size for TCG; 3, Add TCG support (add Loongson-EXT instructions). V9 -> V10: 1, Split fw_cfg to a separate patch; 2, Split boot parameters definition to a local header; 3, Update MIPS machine documentation; 4, Many other improvements suggested by Philippe Mathieu-Daudé. V10 -> V11: 1, Fix some typos; 2, Add Reviewed-by: Philippe Mathieu-Daudé . V11 -> V12: 1, Split boot parameter helpers to loongson3_bootp.c; 2, Support both BE and LE host (Loongson guests are always LE). V12 -> V13: 1, Sync code with upstream; 2, Re-enable KVM support for MIPS in meson; V13 -> V14: 1, Remove merged patches; 2, Split boot parameter helpers to a separate patch; 3, Many other improvements suggested by Philippe Mathieu-Daudé. V14 -> V15: 1, Remove merged patches; 2, Fix malta breakage caused by variable page size; 3, Add unaligned access support for Loongson-3's TCG mode; 4, Many other improvements suggested by Philippe Mathieu-Daudé. V15 -> V16: 1, Remove some unused code; 2, Add Reviewed-by: Richard Henderson . V16 -> V17: 1, Remove merged patches; 2, Rework Loongson LIOINTC; 3, Fix update_pagemask() for MIPS R6; 4, Add Reviewed-by: Philippe Mathieu-Daudé . V17 -> V18: 1, Remove merged patches; 2, Sync code with upstream; 3, Many improvements suggested by Philippe Mathieu-Daudé. V18 -> V19: 1, Add related files to MAINTAINERS; 2, Some improvements suggested by Jiaxun Yang. Huacai Chen and Jiaxun Yang (5): hw/intc: Rework Loongson LIOINTC hw/mips: Implement fw_cfg_arch_key_name() hw/mips: Add Loongson-3 boot parameter helpers hw/mips: Add Loongson-3 machine support docs/system: Update MIPS machine documentation Signed-off-by: Huacai Chen --- MAINTAINERS | 3 + default-configs/devices/mips64el-softmmu.mak | 1 + docs/system/target-mips.rst | 10 + hw/intc/loongson_liointc.c | 36 +- hw/mips/Kconfig | 11 + hw/mips/fw_cfg.c | 35 ++ hw/mips/fw_cfg.h | 19 + hw/mips/loongson3_bootp.c | 151 +++++++ hw/mips/loongson3_bootp.h | 241 +++++++++++ hw/mips/loongson3_virt.c | 621 +++++++++++++++++++++++++++ hw/mips/meson.build | 3 +- include/hw/intc/loongson_liointc.h | 22 + 12 files changed, 1132 insertions(+), 21 deletions(-) create mode 100644 hw/mips/fw_cfg.c create mode 100644 hw/mips/fw_cfg.h create mode 100644 hw/mips/loongson3_bootp.c create mode 100644 hw/mips/loongson3_bootp.h create mode 100644 hw/mips/loongson3_virt.c create mode 100644 include/hw/intc/loongson_liointc.h -- 2.7.0