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path: root/hw/timer/exynos4210_mct.c
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Diffstat (limited to 'hw/timer/exynos4210_mct.c')
-rw-r--r--hw/timer/exynos4210_mct.c27
1 files changed, 23 insertions, 4 deletions
diff --git a/hw/timer/exynos4210_mct.c b/hw/timer/exynos4210_mct.c
index fcf91c75cc..82803ef9a0 100644
--- a/hw/timer/exynos4210_mct.c
+++ b/hw/timer/exynos4210_mct.c
@@ -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;
}