diff options
| author | Peter Maydell <peter.maydell@linaro.org> | 2018-07-09 14:51:34 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2018-07-09 14:51:34 +0100 |
| commit | 6583080ed87ea218acae59f1c52b7b11ffec240d (patch) | |
| tree | 257f2c55bcd4fe901a75fefc132a002e52ca3276 | |
| parent | 086ede32afc9c70de3d75c4fb91c63db790cbd5c (diff) | |
hw/timer/cmsdk-apb-timer: Correct ptimer policy settings
The CMSDK timer interrupt triggers when the counter goes from 1 to 0,
so we want to trigger immediately, rather than waiting for a
clock cycle. Drop the incorrect NO_IMMEDIATE_TRIGGER setting.
We also do not want to get an interrupt if the guest sets the
counter directly to zero, so use the new TRIGGER_ONLY_ON_DECREMENT
policy.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Message-id: 20180703171044.9503-3-peter.maydell@linaro.org
| -rw-r--r-- | hw/timer/cmsdk-apb-timer.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/timer/cmsdk-apb-timer.c b/hw/timer/cmsdk-apb-timer.c index 9878746609..1f99081db1 100644 --- a/hw/timer/cmsdk-apb-timer.c +++ b/hw/timer/cmsdk-apb-timer.c @@ -201,7 +201,7 @@ static void cmsdk_apb_timer_realize(DeviceState *dev, Error **errp) bh = qemu_bh_new(cmsdk_apb_timer_tick, s); s->timer = ptimer_init(bh, PTIMER_POLICY_WRAP_AFTER_ONE_PERIOD | - PTIMER_POLICY_NO_IMMEDIATE_TRIGGER | + PTIMER_POLICY_TRIGGER_ONLY_ON_DECREMENT | PTIMER_POLICY_NO_IMMEDIATE_RELOAD | PTIMER_POLICY_NO_COUNTER_ROUND_DOWN); |