All of lore.kernel.org
 help / color / mirror / Atom feed
* [PATCH 0/3] riscv: Add GENERIC_ENTRY & IRQ_STACKS support
@ 2022-09-03 16:38 ` guoren
  0 siblings, 0 replies; 29+ messages in thread
From: guoren @ 2022-09-03 16:38 UTC (permalink / raw)
  To: arnd, guoren, palmer, tglx, peterz, luto
  Cc: linux-arch, linux-kernel, linux-riscv, Guo Ren

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.

Guo Ren (3):
  riscv: convert to generic entry
  riscv: Support HAVE_IRQ_EXIT_ON_IRQ_STACK
  riscv: Support HAVE_SOFTIRQ_ON_OWN_STACK

 arch/riscv/Kconfig                    |  10 +
 arch/riscv/include/asm/csr.h          |   1 -
 arch/riscv/include/asm/entry-common.h |   8 +
 arch/riscv/include/asm/irq.h          |   2 +
 arch/riscv/include/asm/ptrace.h       |  10 +-
 arch/riscv/include/asm/stacktrace.h   |   5 +
 arch/riscv/include/asm/syscall.h      |   5 +
 arch/riscv/include/asm/thread_info.h  |  15 +-
 arch/riscv/include/asm/vmap_stack.h   |  28 +++
 arch/riscv/kernel/entry.S             | 255 +++++---------------------
 arch/riscv/kernel/irq.c               |  74 ++++++++
 arch/riscv/kernel/ptrace.c            |  40 ----
 arch/riscv/kernel/signal.c            |  20 +-
 arch/riscv/kernel/sys_riscv.c         |  26 +++
 arch/riscv/kernel/traps.c             |  11 ++
 arch/riscv/mm/fault.c                 |  12 +-
 16 files changed, 241 insertions(+), 281 deletions(-)
 create mode 100644 arch/riscv/include/asm/entry-common.h
 create mode 100644 arch/riscv/include/asm/vmap_stack.h

-- 
2.36.1


^ permalink raw reply	[flat|nested] 29+ messages in thread

end of thread, other threads:[~2022-09-06 17:15 UTC | newest]

Thread overview: 29+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-09-03 16:38 [PATCH 0/3] riscv: Add GENERIC_ENTRY & IRQ_STACKS support guoren
2022-09-03 16:38 ` guoren
2022-09-03 16:38 ` [PATCH 1/3] riscv: convert to generic entry guoren
2022-09-03 16:38   ` guoren
2022-09-03 17:48   ` kernel test robot
2022-09-03 17:48     ` kernel test robot
2022-09-04  0:50     ` Guo Ren
2022-09-04  0:50       ` Guo Ren
2022-09-04  0:50       ` Guo Ren
2022-09-04  7:39   ` kernel test robot
2022-09-04  7:39     ` kernel test robot
2022-09-04  9:01     ` Guo Ren
2022-09-04  9:01       ` Guo Ren
2022-09-04  9:01       ` Guo Ren
2022-09-04 10:23       ` Conor.Dooley
2022-09-04 10:23         ` Conor.Dooley
2022-09-04 10:23         ` Conor.Dooley
2022-09-04 10:35         ` Guo Ren
2022-09-04 10:35           ` Guo Ren
2022-09-04 10:35           ` Guo Ren
2022-09-03 16:38 ` [PATCH 2/3] riscv: Support HAVE_IRQ_EXIT_ON_IRQ_STACK guoren
2022-09-03 16:38   ` guoren
2022-09-03 16:38 ` [PATCH 3/3] riscv: Support HAVE_SOFTIRQ_ON_OWN_STACK guoren
2022-09-03 16:38   ` guoren
2022-09-03 17:58   ` kernel test robot
2022-09-03 17:58     ` kernel test robot
2022-09-04  0:04     ` Guo Ren
2022-09-04  0:04       ` Guo Ren
2022-09-04  0:04       ` Guo Ren

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.