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 V3 0/7] riscv: Add GENERIC_ENTRY, irq stack support
Date: Mon, 5 Sep 2022 23:54:16 -0400 [thread overview]
Message-ID: <20220906035423.634617-1-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_v3
V3:
- 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:
Link: 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:
Link: https://lore.kernel.org/linux-riscv/20220903163808.1954131-1-guoren@kernel.org/
Guo Ren (7):
riscv: elf_kexec: Fixup compile warning
riscv: compat_syscall_table: Fixup compile warning
riscv: ptrace: Remove duplicate operation
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 | 11 ++
arch/riscv/mm/fault.c | 12 +-
18 files changed, 259 insertions(+), 285 deletions(-)
create mode 100644 arch/riscv/include/asm/entry-common.h
create mode 100644 arch/riscv/include/asm/vmap_stack.h
--
2.36.1
next reply other threads:[~2022-09-06 3:54 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-06 3:54 guoren [this message]
2022-09-06 3:54 ` [PATCH V3 1/7] riscv: elf_kexec: Fixup compile warning guoren
2022-09-06 3:54 ` [PATCH V3 2/7] riscv: compat_syscall_table: " guoren
2022-09-06 3:54 ` [PATCH V3 3/7] riscv: ptrace: Remove duplicate operation guoren
2022-09-06 3:54 ` [PATCH V3 4/7] riscv: convert to generic entry guoren
2022-09-06 9:20 ` Peter Zijlstra
2022-09-07 0:59 ` Guo Ren
2022-09-06 3:54 ` [PATCH V3 5/7] riscv: Support HAVE_IRQ_EXIT_ON_IRQ_STACK guoren
2022-09-06 3:54 ` [PATCH V3 6/7] riscv: Support HAVE_SOFTIRQ_ON_OWN_STACK guoren
2022-09-06 3:54 ` [PATCH V3 7/7] riscv: Add config of thread stack size guoren
2022-09-06 17:42 ` [PATCH V3 0/7] riscv: Add GENERIC_ENTRY, irq stack support Conor.Dooley
2022-09-07 0:54 ` Guo Ren
2022-09-07 2:52 ` Guo Ren
2022-09-07 6:23 ` Conor.Dooley
2022-09-07 7:06 ` Guo Ren
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