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hw/timer/exynos4210_mct.c: Switch LFRC to transaction-based ptimer API

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Switch the exynos MCT LFRC timers over to the ptimer transaction API.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20191008171740.9679-13-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2019-10-08 18:17:31 +01:00
parent 9ede4ec094
commit 50f07d76f4
1 changed files with 23 additions and 4 deletions
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27
hw/timer/exynos4210_mct.c
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@ -608,6 +608,7 @@ static uint64_t exynos4210_lfrc_get_count(Exynos4210MCTLT *s)
/*
* Set counter of FRC local timer.
* Must be called from within exynos4210_lfrc_tx_begin/commit block.
*/
static void exynos4210_lfrc_update_count(Exynos4210MCTLT *s)
{
@ -620,6 +621,7 @@ static void exynos4210_lfrc_update_count(Exynos4210MCTLT *s)
/*
* Start local FRC timer
* Must be called from within exynos4210_lfrc_tx_begin/commit block.
*/
static void exynos4210_lfrc_start(Exynos4210MCTLT *s)
{
@ -628,12 +630,25 @@ static void exynos4210_lfrc_start(Exynos4210MCTLT *s)
/*
* Stop local FRC timer
* Must be called from within exynos4210_lfrc_tx_begin/commit block.
*/
static void exynos4210_lfrc_stop(Exynos4210MCTLT *s)
{
ptimer_stop(s->ptimer_frc);
}
/* Start ptimer transaction for local FRC timer */
static void exynos4210_lfrc_tx_begin(Exynos4210MCTLT *s)
{
ptimer_transaction_begin(s->ptimer_frc);
}
/* Commit ptimer transaction for local FRC timer */
static void exynos4210_lfrc_tx_commit(Exynos4210MCTLT *s)
{
ptimer_transaction_commit(s->ptimer_frc);
}
/*
* Local timer free running counter tick handler
*/
@ -981,9 +996,9 @@ static void exynos4210_mct_update_freq(Exynos4210MCTState *s)
/* local timer */
ptimer_set_freq(s->l_timer[0].tick_timer.ptimer_tick, s->freq);
ptimer_set_freq(s->l_timer[0].ptimer_frc, s->freq);
tx_ptimer_set_freq(s->l_timer[0].ptimer_frc, s->freq);
ptimer_set_freq(s->l_timer[1].tick_timer.ptimer_tick, s->freq);
ptimer_set_freq(s->l_timer[1].ptimer_frc, s->freq);
tx_ptimer_set_freq(s->l_timer[1].ptimer_frc, s->freq);
}
}
@ -1012,7 +1027,9 @@ static void exynos4210_mct_reset(DeviceState *d)
s->l_timer[i].tick_timer.count = 0;
s->l_timer[i].tick_timer.distance = 0;
s->l_timer[i].tick_timer.progress = 0;
exynos4210_lfrc_tx_begin(&s->l_timer[i]);
ptimer_stop(s->l_timer[i].ptimer_frc);
exynos4210_lfrc_tx_commit(&s->l_timer[i]);
exynos4210_ltick_timer_init(&s->l_timer[i].tick_timer);
}
@ -1316,6 +1333,7 @@ static void exynos4210_mct_write(void *opaque, hwaddr offset,
}
/* Start or Stop local FRC if TCON changed */
exynos4210_lfrc_tx_begin(&s->l_timer[lt_i]);
if ((value & L_TCON_FRC_START) >
(s->l_timer[lt_i].reg.tcon & L_TCON_FRC_START)) {
DPRINTF("local timer[%d] start frc\n", lt_i);
@ -1326,6 +1344,7 @@ static void exynos4210_mct_write(void *opaque, hwaddr offset,
DPRINTF("local timer[%d] stop frc\n", lt_i);
exynos4210_lfrc_stop(&s->l_timer[lt_i]);
}
exynos4210_lfrc_tx_commit(&s->l_timer[lt_i]);
break;
case L0_TCNTB: case L1_TCNTB:
@ -1477,11 +1496,11 @@ static void exynos4210_mct_init(Object *obj)
/* Local timers */
for (i = 0; i < 2; i++) {
bh[0] = qemu_bh_new(exynos4210_ltick_event, &s->l_timer[i]);
bh[1] = qemu_bh_new(exynos4210_lfrc_event, &s->l_timer[i]);
s->l_timer[i].tick_timer.ptimer_tick =
ptimer_init_with_bh(bh[0], PTIMER_POLICY_DEFAULT);
s->l_timer[i].ptimer_frc =
ptimer_init_with_bh(bh[1], PTIMER_POLICY_DEFAULT);
ptimer_init(exynos4210_lfrc_event, &s->l_timer[i],
PTIMER_POLICY_DEFAULT);
s->l_timer[i].id = i;
}