Messages in this thread Patch in this message | | | From | Will Deacon <> | Subject | [PATCH 2/2] clocksource/drivers/exynos_mct: Mark MCT device as CLOCK_EVT_FEAT_PERCPU | Date | Tue, 8 Jun 2021 16:43:41 +0100 |
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The "mct_tick" is a per-cpu clockevents device. Set the CLOCK_EVT_FEAT_PERCPU feature to prevent e.g. mct_tick0 being unsafely designated as the global broadcast timer and instead treat the device as a per-cpu wakeup timer.
Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: Will Deacon <will@kernel.org> --- drivers/clocksource/exynos_mct.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/clocksource/exynos_mct.c b/drivers/clocksource/exynos_mct.c index 804d3e01c8f4..5e3e96d3d1b9 100644 --- a/drivers/clocksource/exynos_mct.c +++ b/drivers/clocksource/exynos_mct.c @@ -465,7 +465,8 @@ static int exynos4_mct_starting_cpu(unsigned int cpu) evt->set_state_oneshot = set_state_shutdown; evt->set_state_oneshot_stopped = set_state_shutdown; evt->tick_resume = set_state_shutdown; - evt->features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT; + evt->features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT | + CLOCK_EVT_FEAT_PERCPU; evt->rating = MCT_CLKEVENTS_RATING, exynos4_mct_write(TICK_BASE_CNT, mevt->base + MCT_L_TCNTB_OFFSET); -- 2.32.0.rc1.229.g3e70b5a671-goog
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