From patchwork Wed Jun 14 01:30:15 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Guo Ren X-Patchwork-Id: 10736 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:994d:0:b0:3d9:f83d:47d9 with SMTP id k13csp937682vqr; Tue, 13 Jun 2023 18:43:53 -0700 (PDT) X-Google-Smtp-Source: ACHHUZ6oxdPlnBWA81pClDQLxdcM7h0/lhgZKfNXJjDrmcsfW8p6PmUIsFqF3JXB5EYS4yuiplNQ X-Received: by 2002:a05:6a00:1485:b0:64d:1451:8233 with SMTP id v5-20020a056a00148500b0064d14518233mr825376pfu.21.1686707033057; Tue, 13 Jun 2023 18:43:53 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1686707033; cv=none; d=google.com; s=arc-20160816; b=wr9I9f2FmoeB+DunygrsRWtGzWrx5J1hHjfX2gRZaxWYHBo69EUtY7SSC91Rvgj7sY 7vf7R2BhxYsiye6qovLefRgViFcHsx9KPZBW4lS49bANEMqGO4kBtCd+BmfY10UAOalI M4gVzckCAphNu9hJybYKJ4PuZycSdObAFlIXMJsCZEbppWxyf/Fq7UYK9pZShTTPyQWW QiCCGGuLFKqK3VimJzaamgZa/RYKnLbPnsWITHNtHSdzZpLPPOVik6+RCPrbCYOebOMn +g+EHC5Jr1dj00MGIFvzD67+WdpOeuBvpji9i5qvf4Pi9HITUxPqDV/fFoC+qYrPWg9d Rv6w== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :message-id:date:subject:cc:to:from:dkim-signature; bh=TbZvBZ7a6UvA7PNlDjKIATZ5qTOAONh9nY7WyM4eFJo=; b=Tjf0EQQfOxCZyKk5hcohd0yRePdt1EtM5Nop74PanKi4dACOCM4Dxx8F1wNO8N2Efw +ERi733yq7+QByVlNcn1xRBCepjx0cW9GQ2iJZ2HfeJxD8WTrWa0DlkgTE6FXZUu0xFu 71df1Lp388uBgke6BCb1apskftEkryARTLFtqncc/+mEXV2UzCcsI3WvyI2pcz1R/6uY KXGKtTTxF0noqMA1fOPDQNaRKC0iavRpfjWziDoKxQGIkXCawdpf0VapFjhxqklvx3wF IbdLUtiGEtD9/+aI7ViUvM4MadI4GoeUjappB9D5nhHXo0g5x0ffXyb/REfGliUBUmWT aWKQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b="K/Of8m8q"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id j184-20020a6380c1000000b0053f4a814953si7021275pgd.870.2023.06.13.18.43.39; Tue, 13 Jun 2023 18:43:53 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b="K/Of8m8q"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232022AbjFNBak (ORCPT + 99 others); Tue, 13 Jun 2023 21:30:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43518 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232782AbjFNBah (ORCPT ); Tue, 13 Jun 2023 21:30:37 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CECE91BF6; Tue, 13 Jun 2023 18:30:26 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 664EC63621; Wed, 14 Jun 2023 01:30:25 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 590BBC433CA; Wed, 14 Jun 2023 01:30:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1686706224; bh=1A5KVVxyg74MwDhILMrc7YVC1sXoGN2aGyDkI3U1yBE=; h=From:To:Cc:Subject:Date:From; b=K/Of8m8qr2TUrQVMpfPXNwNqCv2zlN6kheHcyvdAPkU9GAWJoWGsKTT/J4RVKEvxF ptp1rv1wNXqK4RJrIHEMcFkF+v1hDcawvC4mOdZ0AA5f40I95W+xuiMKHxwk4AD94o dyV6B9OpoZCzyXkD+IcvT/S3eebd9j/ZLYOWHk8jtcng42ove4BeNayzJPnVjU/Bqy aEpFCBvr9RQUxLt58W2AbEVVKcCuYYpIE8flY33TcJbNT5k4l32HLk9E0deTMxq5+j yxQ6vZ0Kb/hFSTqa+NABim8qfb98YFzUZ1Z9VZ4GINXcWl/+rcBXIpNUjVa8MaedN4 qh6476CsNMn1g== From: guoren@kernel.org To: arnd@arndb.de, guoren@kernel.org, palmer@rivosinc.com, conor.dooley@microchip.com, heiko@sntech.de, jszhang@kernel.org, bjorn@kernel.org, cleger@rivosinc.com Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, Guo Ren Subject: [PATCH -next V13 0/3] riscv: Add independent irq/softirq stacks support Date: Tue, 13 Jun 2023 21:30:15 -0400 Message-Id: <20230614013018.2168426-1-guoren@kernel.org> X-Mailer: git-send-email 2.36.1 MIME-Version: 1.0 X-Spam-Status: No, score=-7.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1768640513681986954?= X-GMAIL-MSGID: =?utf-8?q?1768640513681986954?= From: Guo Ren This patch series adds independent irq/softirq stacks to decrease the press of the thread stack. Also, add a thread STACK_SIZE config for users to adjust the proper size during compile time. This patch series belonged to the generic entry, which has been merged to for-next now. v13: - Rebase on riscv/for-next commit d5e45e810e0e ("Merge patch series "riscv: Add vector ISA support"") - Rmove unnecessary BUILD_BUG_ON(). (Thx Clément) v12: https://lore.kernel.org/linux-riscv/20230529084600.2878130-1-guoren@kernel.org/ - Rebase on palmer/for-next (20230529) - Move DECLARE_PER_CPU(ulong *, irq_stack_ptr) into irq_stack.h (Thx Conor) - Optimize commit msg v11: https://lore.kernel.org/linux-riscv/20230324071239.151677-1-guoren@kernel.org/ - Rebase on palmer/for-next (20230324) - Separate from generic entry patch series. v10: https://lore.kernel.org/linux-riscv/20221208025816.138712-1-guoren@kernel.org/ - Rebase on palmer/for-next branch (20221208) - Remove unrelated patches from the series (Suggested-by: Bjorn) - Fixup Typos. v9: https://lore.kernel.org/linux-riscv/20221130034059.826599-1-guoren@kernel.org/ - Fixup NR_syscalls check (by Ben Hutchings) - Add Tested-by: Jisheng Zhang v8: https://lore.kernel.org/linux-riscv/20221103075047.1634923-1-guoren@kernel.org/ - Rebase on palmer/for-next branch (20221102) - Add save/restore_from_x5_to_x31 .macro (JishengZhang) - Consolidate ret_from_kernel_thread into ret_from_fork (JishengZhang) - Optimize __noinstr_section comment (JiangshanLai) v7: https://lore.kernel.org/linux-riscv/20221015114702.3489989-1-guoren@kernel.org/ - Fixup regs_irqs_disabled with SR_PIE - Optimize stackleak_erase -> stackleak_erase_on_task_stack (Thx Mark Rutland) - Add BUG_ON(!irqs_disabled()) in trap handlers - Using regs_irqs_disabled in __do_page_fault - Remove unnecessary irq disable in ret_from_exception and add comment v6: https://lore.kernel.org/linux-riscv/20221002012451.2351127-1-guoren@kernel.org/ - Use THEAD_SIZE_ORDER for thread size adjustment in kconfig (Thx Arnd) - Move call_on_stack to inline style (Thx Peter Zijlstra) - Fixup fp chain broken (Thx Chen Zhongjin) - Remove common entry modification, and fixup page_fault entry (Thx Peter Zijlstra) - Treat some traps as nmi entry (Thx Peter Zijlstra) v5: https://lore.kernel.org/linux-riscv/20220918155246.1203293-1-guoren@kernel.org/ - Add riscv own stackleak patch instead of generic entry modification (by Mark Rutland) - Add EXPERT dependency for THREAD_SIZE (by Arnd) - Add EXPERT dependency for IRQ_STACK (by Sebastian, David Laight) - Corrected __trap_section (by Peter Zijlstra) - Add Tested-by (Yipeng Zou) - Use CONFIG_SOFTIRQ_ON_OWN_STACK replace "#ifndef CONFIG_PREEMPT_RT" - Fixup systrace_enter compile error - Fixup exit_to_user_mode_prepare preempt_disable warning V4: https://lore.kernel.org/linux-riscv/20220908022506.1275799-1-guoren@kernel.org/ - Fixup entry.S with "la" bug (by Conor.Dooley) - Fixup missing noinstr bug (by Peter Zijlstra) V3: https://lore.kernel.org/linux-riscv/20220906035423.634617-1-guoren@kernel.org/ - Fixup CONFIG_COMPAT=n compile error - Add THREAD_SIZE_ORDER config - Optimize elf_kexec.c warning fixup - Add static to irq_stack_ptr definition V2: https://lore.kernel.org/linux-riscv/20220904072637.8619-1-guoren@kernel.org/ - Fixup compile error by include "riscv: ptrace: Remove duplicate operation" - Fixup compile warning Reported-by: kernel test robot - Add test repo link in cover letter V1: https://lore.kernel.org/linux-riscv/20220903163808.1954131-1-guoren@kernel.org/ Guo Ren (3): riscv: stack: Support HAVE_IRQ_EXIT_ON_IRQ_STACK riscv: stack: Support HAVE_SOFTIRQ_ON_OWN_STACK riscv: stack: Add config of thread stack size arch/riscv/Kconfig | 19 ++++++++ arch/riscv/include/asm/irq_stack.h | 30 ++++++++++++ arch/riscv/include/asm/thread_info.h | 14 ++---- arch/riscv/kernel/irq.c | 68 ++++++++++++++++++++++++++++ arch/riscv/kernel/traps.c | 35 +++++++++++++- 5 files changed, 153 insertions(+), 13 deletions(-) create mode 100644 arch/riscv/include/asm/irq_stack.h