From mboxrd@z Thu Jan 1 00:00:00 1970 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=-21.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,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 6F195C07E96 for ; Tue, 6 Jul 2021 04:18:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4F1CF6198B for ; Tue, 6 Jul 2021 04:18:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229957AbhGFEUi (ORCPT ); Tue, 6 Jul 2021 00:20:38 -0400 Received: from mail.kernel.org ([198.145.29.99]:45900 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229550AbhGFEUi (ORCPT ); Tue, 6 Jul 2021 00:20:38 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 3210A61973; Tue, 6 Jul 2021 04:17:56 +0000 (UTC) From: Huacai Chen To: Arnd Bergmann , Andy Lutomirski , Thomas Gleixner , Peter Zijlstra , Andrew Morton , David Airlie , Linus Torvalds Cc: linux-arch@vger.kernel.org, Xuefeng Li , Huacai Chen , Jiaxun Yang , Huacai Chen , Chen Zhu Subject: [PATCH 00/19] arch: Add basic LoongArch support Date: Tue, 6 Jul 2021 12:18:01 +0800 Message-Id: <20210706041820.1536502-1-chenhuacai@loongson.cn> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-arch@vger.kernel.org LoongArch is a new RISC ISA, which is a bit like MIPS or RISC-V. LoongArch includes a reduced 32-bit version (LA32R), a standard 32-bit version (LA32S) and a 64-bit version (LA64). LoongArch use ACPI as its boot protocol LoongArch-specific interrupt controllers (similar to APIC) are already added in the next revision of ACPI Specification (current revision is 6.4). This patchset is adding basic LoongArch support in mainline kernel, we can see a complete snapshot here: https://github.com/loongson/linux/tree/loongarch-next Cross-compile tool chain to build kernel: https://github.com/loongson/build-tools/releases Loongson and LoongArch documentations: https://github.com/loongson/LoongArch-Documentation LoongArch-specific interrupt controllers: https://mantis.uefi.org/mantis/view.php?id=2203 Huacai Chen(19): LoongArch: Add elf-related definitions. LoongArch: Add writecombine support for drm. LoongArch: Add build infrastructure. LoongArch: Add common headers. LoongArch: Add boot and setup routines. LoongArch: Add exception/interrupt handling. LoongArch: Add process management. LoongArch: Add memory management. LoongArch: Add system call support. LoongArch: Add signal handling support. LoongArch: Add elf and module support. LoongArch: Add misc common routines. LoongArch: Add some library functions. LoongArch: Add 64-bit Loongson platform. LoongArch: Add PCI controller support. LoongArch: Add VDSO and VSYSCALL support. LoongArch: Add multi-processor (SMP) support. LoongArch: Add Non-Uniform Memory Access (NUMA) support. LoongArch: Add Loongson-3 default config file. Signed-off-by: Huacai Chen Signed-off-by: Chen Zhu --- drivers/irqchip/Kconfig | 37 +++- drivers/irqchip/Makefile | 3 + drivers/irqchip/irq-loongarch-cpu.c | 87 ++++++++++ drivers/irqchip/irq-loongson-eiointc.c | 308 +++++++++++++++++++++++++++++++++ drivers/irqchip/irq-loongson-htvec.c | 102 ++++++++++- drivers/irqchip/irq-loongson-liointc.c | 140 ++++++++++++++- drivers/irqchip/irq-loongson-pch-lpc.c | 204 ++++++++++++++++++++++ drivers/irqchip/irq-loongson-pch-msi.c | 69 +++++++- drivers/irqchip/irq-loongson-pch-pic.c | 139 ++++++++++++++- include/linux/cpuhotplug.h | 1 + 10 files changed, 1069 insertions(+), 21 deletions(-) create mode 100644 drivers/irqchip/irq-loongarch-cpu.c create mode 100644 drivers/irqchip/irq-loongson-eiointc.c create mode 100644 drivers/irqchip/irq-loongson-pch-lpc.c -- 2.27.0