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hw/timer/puv3_ost.c: Switch to transaction-based ptimer API

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Switch the puv3_ost 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>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20191017132905.5604-2-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2019-10-22 16:50:35 +01:00
parent a1f9a907ea
commit c54dd4b701
1 changed files with 5 additions and 4 deletions
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9
hw/timer/puv3_ost.c
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@ -13,7 +13,6 @@
#include "hw/sysbus.h"
#include "hw/irq.h"
#include "hw/ptimer.h"
#include "qemu/main-loop.h"
#include "qemu/module.h"
#undef DEBUG_PUV3
@ -27,7 +26,6 @@ typedef struct PUV3OSTState {
SysBusDevice parent_obj;
MemoryRegion iomem;
QEMUBH *bh;
qemu_irq irq;
ptimer_state *ptimer;
@ -68,6 +66,7 @@ static void puv3_ost_write(void *opaque, hwaddr offset,
DPRINTF("offset 0x%x, value 0x%x\n", offset, value);
switch (offset) {
case 0x00: /* Match Register 0 */
ptimer_transaction_begin(s->ptimer);
s->reg_OSMR0 = value;
if (s->reg_OSMR0 > s->reg_OSCR) {
ptimer_set_count(s->ptimer, s->reg_OSMR0 - s->reg_OSCR);
@ -76,6 +75,7 @@ static void puv3_ost_write(void *opaque, hwaddr offset,
(0xffffffff - s->reg_OSCR));
}
ptimer_run(s->ptimer, 2);
ptimer_transaction_commit(s->ptimer);
break;
case 0x14: /* Status Register */
assert(value == 0);
@ -128,9 +128,10 @@ static void puv3_ost_realize(DeviceState *dev, Error **errp)
sysbus_init_irq(sbd, &s->irq);
s->bh = qemu_bh_new(puv3_ost_tick, s);
s->ptimer = ptimer_init_with_bh(s->bh, PTIMER_POLICY_DEFAULT);
s->ptimer = ptimer_init(puv3_ost_tick, s, PTIMER_POLICY_DEFAULT);
ptimer_transaction_begin(s->ptimer);
ptimer_set_freq(s->ptimer, 50 * 1000 * 1000);
ptimer_transaction_commit(s->ptimer);
memory_region_init_io(&s->iomem, OBJECT(s), &puv3_ost_ops, s, "puv3_ost",
PUV3_REGS_OFFSET);