This is a note to let you know that I've just added the patch titled clocksource/drivers/riscv: Events are stopped during CPU suspend to the 5.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: clocksource-drivers-riscv-events-are-stopped-during-.patch and it can be found in the queue-5.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit c834490251f29e1f1b0fa15fe39f31cc94fca743 Author: Samuel Holland <samuel@xxxxxxxxxxxx> Date: Sun May 8 20:21:21 2022 -0500 clocksource/drivers/riscv: Events are stopped during CPU suspend [ Upstream commit 232ccac1bd9b5bfe73895f527c08623e7fa0752d ] Some implementations of the SBI time extension depend on hart-local state (for example, CSRs) that are lost or hardware that is powered down when a CPU is suspended. To be safe, the clockevents driver cannot assume that timer IRQs will be received during CPU suspend. Fixes: 62b019436814 ("clocksource: new RISC-V SBI timer driver") Signed-off-by: Samuel Holland <samuel@xxxxxxxxxxxx> Reviewed-by: Anup Patel <anup@xxxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20220509012121.40031-1-samuel@xxxxxxxxxxxx Signed-off-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/clocksource/timer-riscv.c b/drivers/clocksource/timer-riscv.c index 1767f8bf2013..593d5a957b69 100644 --- a/drivers/clocksource/timer-riscv.c +++ b/drivers/clocksource/timer-riscv.c @@ -34,7 +34,7 @@ static int riscv_clock_next_event(unsigned long delta, static unsigned int riscv_clock_event_irq; static DEFINE_PER_CPU(struct clock_event_device, riscv_clock_event) = { .name = "riscv_timer_clockevent", - .features = CLOCK_EVT_FEAT_ONESHOT, + .features = CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_FEAT_C3STOP, .rating = 100, .set_next_event = riscv_clock_next_event, };