diff options
| author | Will Deacon <will@kernel.org> | 2021-06-08 17:43:41 +0200 |
|---|---|---|
| committer | Daniel Lezcano <daniel.lezcano@linaro.org> | 2021-08-13 09:24:22 +0200 |
| commit | 88183788eacb782eb6e1295f1934fb9531b503d6 (patch) | |
| tree | 2bd689d5b4825c515be74ae03ed75d98f0e09141 /drivers/clocksource | |
| parent | clocksource/drivers/exynos_mct: Prioritise Arm arch timer on arm64 (diff) | |
| download | linux-88183788eacb782eb6e1295f1934fb9531b503d6.tar.xz linux-88183788eacb782eb6e1295f1934fb9531b503d6.zip | |
clocksource/drivers/exynos_mct: Mark MCT device as CLOCK_EVT_FEAT_PERCPU
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>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20210608154341.10794-3-will@kernel.org
Diffstat (limited to 'drivers/clocksource')
| -rw-r--r-- | drivers/clocksource/exynos_mct.c | 3 |
1 files changed, 2 insertions, 1 deletions
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); |