[PATCH 0/2] Support SSTC while PM operations
Nick Hu
nick.hu at sifive.com
Wed Aug 28 20:38:58 PDT 2024
When the cpu is going to be hotplug, stop the stimecmp to prevent pending
interrupt.
When the cpu is going to be suspended, save the stimecmp before entering
the suspend state and restore it in the resume path.
Nick Hu (2):
riscv: Add stimecmp save and restore
time-riscv: Stop stimecmp when cpu hotplug
arch/riscv/include/asm/suspend.h | 4 ++++
arch/riscv/kernel/suspend.c | 13 +++++++++++++
drivers/clocksource/timer-riscv.c | 22 +++++++++++++++-------
3 files changed, 32 insertions(+), 7 deletions(-)
--
2.34.1
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