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From: guoren@kernel.org
To: arnd@arndb.de, guoren@kernel.org, palmer@rivosinc.com,
	tglx@linutronix.de, peterz@infradead.org, luto@kernel.org,
	conor.dooley@microchip.com, heiko@sntech.de, jszhang@kernel.org,
	lazyparser@gmail.com, falcon@tinylab.org, chenhuacai@kernel.org,
	apatel@ventanamicro.com, atishp@atishpatra.org,
	palmer@dabbelt.com, paul.walmsley@sifive.com,
	bigeasy@linutronix.de
Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-riscv@lists.infradead.org,
	Guo Ren <guoren@linux.alibaba.com>
Subject: [PATCH V4 0/9] riscv: Add GENERIC_ENTRY, irq stack support
Date: Wed,  7 Sep 2022 22:24:58 -0400	[thread overview]
Message-ID: <20220908022506.1275799-1-guoren@kernel.org> (raw)

From: Guo Ren <guoren@linux.alibaba.com>

The patches convert riscv to use the generic entry infrastructure from
kernel/entry/*. Add independent irq stacks (IRQ_STACKS) for percpu to
prevent kernel stack overflows. Add the HAVE_SOFTIRQ_ON_OWN_STACK
feature for the IRQ_STACKS config. You can try it directly with [1].

[1] https://github.com/guoren83/linux/tree/generic_entry_v4

V4:
 - Fixup entry.S with "la" bug (by Conor.Dooley)
 - Fixup missing noinstr bug (by Peter Ziji)

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 <lkp@intel.com>
 - Add test repo link in cover letter

V1: https://lore.kernel.org/linux-riscv/20220903163808.1954131-1-guoren@kernel.org/

Guo Ren (8):
  riscv: elf_kexec: Fixup compile warning
  riscv: compat_syscall_table: Fixup compile warning
  riscv: ptrace: Remove duplicate operation
  riscv: traps: Add noinstr to prevent instrumentation inserted
  riscv: convert to generic entry
  riscv: Support HAVE_IRQ_EXIT_ON_IRQ_STACK
  riscv: Support HAVE_SOFTIRQ_ON_OWN_STACK
  riscv: Add config of thread stack size

 arch/riscv/Kconfig                    |  19 ++
 arch/riscv/include/asm/csr.h          |   1 -
 arch/riscv/include/asm/entry-common.h |   8 +
 arch/riscv/include/asm/irq.h          |   3 +
 arch/riscv/include/asm/ptrace.h       |  10 +-
 arch/riscv/include/asm/stacktrace.h   |   5 +
 arch/riscv/include/asm/syscall.h      |   6 +
 arch/riscv/include/asm/thread_info.h  |  19 +-
 arch/riscv/include/asm/vmap_stack.h   |  28 +++
 arch/riscv/kernel/Makefile            |   1 +
 arch/riscv/kernel/elf_kexec.c         |   2 +-
 arch/riscv/kernel/entry.S             | 255 +++++---------------------
 arch/riscv/kernel/irq.c               |  75 ++++++++
 arch/riscv/kernel/ptrace.c            |  41 -----
 arch/riscv/kernel/signal.c            |  21 +--
 arch/riscv/kernel/sys_riscv.c         |  27 +++
 arch/riscv/kernel/traps.c             |  19 +-
 arch/riscv/mm/fault.c                 |  12 +-
 18 files changed, 263 insertions(+), 289 deletions(-)
 create mode 100644 arch/riscv/include/asm/entry-common.h
 create mode 100644 arch/riscv/include/asm/vmap_stack.h

-- 
2.36.1


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             reply	other threads:[~2022-09-08  2:25 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-08  2:24 guoren [this message]
2022-09-08  2:24 ` [PATCH V4 1/8] riscv: elf_kexec: Fixup compile warning guoren
2022-09-08  2:25 ` [PATCH V4 2/8] riscv: compat_syscall_table: " guoren
2022-09-08  2:25 ` [PATCH V4 3/8] riscv: ptrace: Remove duplicate operation guoren
2022-09-08  2:25 ` [PATCH V4 4/8] riscv: traps: Add noinstr to prevent instrumentation inserted guoren
2022-09-08  7:33   ` Peter Zijlstra
2022-09-10  9:17     ` Guo Ren
2022-09-10 12:46       ` Guo Ren
2022-09-11 15:09       ` Peter Zijlstra
2022-09-11 16:20         ` Guo Ren
2022-09-08  2:25 ` [PATCH V4 5/8] riscv: convert to generic entry guoren
2022-09-15 13:50   ` Yipeng Zou
2022-09-08  2:25 ` [PATCH V4 6/8] riscv: Support HAVE_IRQ_EXIT_ON_IRQ_STACK guoren
2022-09-08 16:08   ` Sebastian Andrzej Siewior
2022-09-09  7:30     ` David Laight
2022-09-11  1:13       ` Guo Ren
2022-09-08  2:25 ` [PATCH V4 7/8] riscv: Support HAVE_SOFTIRQ_ON_OWN_STACK guoren
2022-09-08 16:01   ` Sebastian Andrzej Siewior
2022-09-18 15:42     ` Guo Ren
2022-09-08  2:25 ` [PATCH V4 8/8] riscv: Add config of thread stack size guoren
2022-09-08  7:35   ` Arnd Bergmann
2022-09-10 12:52     ` Guo Ren
2022-09-10 16:06       ` Arnd Bergmann
2022-09-10 23:35         ` Guo Ren
2022-09-11 18:39           ` Arnd Bergmann
2022-09-12  4:14             ` Guo Ren
2022-09-12  8:23               ` Arnd Bergmann
2022-09-19  8:38                 ` Guo Ren
2022-09-19  8:35         ` Guo Ren
2022-09-20  0:46           ` Guo Ren
2022-09-20  7:15             ` Arnd Bergmann
2022-09-21  6:11               ` Guo Ren
2022-09-20  7:17             ` Arnd Bergmann
2022-09-21  6:13               ` Guo Ren
2022-09-21  8:23                 ` Guo Ren
2022-09-21 10:31                   ` Guo Ren
2022-09-21 10:46                     ` Guo Ren
2022-09-22  5:55                       ` Arnd Bergmann

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