[v1] LoongArch: Add PREEMPT_RT support

[PATCH 0/3] LoongArch: Add PREEMPT_RT support

Huacai Chen posted 3 patches 1 year, 1 month ago

Diff against v2
Download series mbox

There is a newer version of this series

arch/loongarch/Kconfig       | 2 ++
arch/loongarch/kernel/time.c | 2 +-
2 files changed, 3 insertions(+), 1 deletion(-)

Expand all Fold all

[PATCH 0/3] LoongArch: Add PREEMPT_RT support

Posted by Huacai Chen 1 year, 1 month ago

This series add PREEMPT_RT support for LoongArch.

With the recent printk changes, the last known road block has been
addressed. The main architectural preparation we need is selecting
HAVE_POSIX_CPU_TIMERS_TASK_WORK to allow PREEMPT_RT coexist with KVM.
Then we can also enable PREEMPT_RT as X86, ARM64 and RISC-V.

Huacai Chen(3):
 LoongArch: Reduce min_delta for the arch clockevent device.
 LoongArch: Select HAVE_POSIX_CPU_TIMERS_TASK_WORK.
 LoongArch: Allow to enable PREEMPT_RT.

Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
---
 arch/loongarch/Kconfig       | 2 ++
 arch/loongarch/kernel/time.c | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)
---
2.27.0