diff options
| author | Peter Maydell <peter.maydell@linaro.org> | 2019-10-08 18:17:28 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2019-10-15 18:09:02 +0100 |
| commit | 19c12fe93ab9c65b56c7dfd467799a63c28d4bbd (patch) | |
| tree | 4db53c9e6c9a5113f830ac8a064cd09f4d276c0d /hw/timer | |
| parent | da38e0680f8e5118131fd224d52e97d7db38a48c (diff) | |
hw/timer/cmsdk-apb-timer.c: Switch to transaction-based ptimer API
Switch the cmsdk-apb-timer code away from bottom-half based ptimers
to the new transaction-based ptimer API. This just requires adding
begin/commit calls around the various places that modify the ptimer
state, and using the new ptimer_init() function to create the timer.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20191008171740.9679-10-peter.maydell@linaro.org
Diffstat (limited to 'hw/timer')
| -rw-r--r-- | hw/timer/cmsdk-apb-timer.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/hw/timer/cmsdk-apb-timer.c b/hw/timer/cmsdk-apb-timer.c index c9ce9770ce..40728e85e2 100644 --- a/hw/timer/cmsdk-apb-timer.c +++ b/hw/timer/cmsdk-apb-timer.c @@ -29,7 +29,6 @@ #include "qemu/osdep.h" #include "qemu/log.h" -#include "qemu/main-loop.h" #include "qemu/module.h" #include "qapi/error.h" #include "trace.h" @@ -121,14 +120,17 @@ static void cmsdk_apb_timer_write(void *opaque, hwaddr offset, uint64_t value, "CMSDK APB timer: EXTIN input not supported\n"); } s->ctrl = value & 0xf; + ptimer_transaction_begin(s->timer); if (s->ctrl & R_CTRL_EN_MASK) { ptimer_run(s->timer, ptimer_get_limit(s->timer) == 0); } else { ptimer_stop(s->timer); } + ptimer_transaction_commit(s->timer); break; case A_RELOAD: /* Writing to reload also sets the current timer value */ + ptimer_transaction_begin(s->timer); if (!value) { ptimer_stop(s->timer); } @@ -140,8 +142,10 @@ static void cmsdk_apb_timer_write(void *opaque, hwaddr offset, uint64_t value, */ ptimer_run(s->timer, 0); } + ptimer_transaction_commit(s->timer); break; case A_VALUE: + ptimer_transaction_begin(s->timer); if (!value && !ptimer_get_limit(s->timer)) { ptimer_stop(s->timer); } @@ -149,6 +153,7 @@ static void cmsdk_apb_timer_write(void *opaque, hwaddr offset, uint64_t value, if (value && (s->ctrl & R_CTRL_EN_MASK)) { ptimer_run(s->timer, ptimer_get_limit(s->timer) == 0); } + ptimer_transaction_commit(s->timer); break; case A_INTSTATUS: /* Just one bit, which is W1C. */ @@ -191,9 +196,11 @@ static void cmsdk_apb_timer_reset(DeviceState *dev) trace_cmsdk_apb_timer_reset(); s->ctrl = 0; s->intstatus = 0; + ptimer_transaction_begin(s->timer); ptimer_stop(s->timer); /* Set the limit and the count */ ptimer_set_limit(s->timer, 0, 1); + ptimer_transaction_commit(s->timer); } static void cmsdk_apb_timer_init(Object *obj) @@ -210,21 +217,21 @@ static void cmsdk_apb_timer_init(Object *obj) static void cmsdk_apb_timer_realize(DeviceState *dev, Error **errp) { CMSDKAPBTIMER *s = CMSDK_APB_TIMER(dev); - QEMUBH *bh; if (s->pclk_frq == 0) { error_setg(errp, "CMSDK APB timer: pclk-frq property must be set"); return; } - bh = qemu_bh_new(cmsdk_apb_timer_tick, s); - s->timer = ptimer_init_with_bh(bh, + s->timer = ptimer_init(cmsdk_apb_timer_tick, s, PTIMER_POLICY_WRAP_AFTER_ONE_PERIOD | PTIMER_POLICY_TRIGGER_ONLY_ON_DECREMENT | PTIMER_POLICY_NO_IMMEDIATE_RELOAD | PTIMER_POLICY_NO_COUNTER_ROUND_DOWN); + ptimer_transaction_begin(s->timer); ptimer_set_freq(s->timer, s->pclk_frq); + ptimer_transaction_commit(s->timer); } static const VMStateDescription cmsdk_apb_timer_vmstate = { |