diff options
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/timer/nv04.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/timer/nv04.c b/drivers/gpu/drm/nouveau/core/subdev/timer/nv04.c index 9469b82..49350ea 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/timer/nv04.c +++ b/drivers/gpu/drm/nouveau/core/subdev/timer/nv04.c @@ -36,6 +36,7 @@ struct nv04_timer_priv { struct nouveau_timer base; struct list_head alarms; spinlock_t lock; + u64 suspend_time; }; static u64 @@ -146,6 +147,7 @@ nv04_timer_ctor(struct nouveau_object *parent, struct nouveau_object *engine, priv->base.base.intr = nv04_timer_intr; priv->base.read = nv04_timer_read; priv->base.alarm = nv04_timer_alarm; + priv->suspend_time = 0; INIT_LIST_HEAD(&priv->alarms); spin_lock_init(&priv->lock); @@ -164,7 +166,7 @@ nv04_timer_init(struct nouveau_object *object) { struct nouveau_device *device = nv_device(object); struct nv04_timer_priv *priv = (void *)object; - u32 m = 1, f, n, d; + u32 m = 1, f, n, d, lo, hi; int ret; ret = nouveau_timer_init(&priv->base); @@ -221,16 +223,25 @@ nv04_timer_init(struct nouveau_object *object) d >>= 1; } + /* restore the time before suspend */ + lo = priv->suspend_time; + hi = (priv->suspend_time >> 32); + nv_debug(priv, "input frequency : %dHz\n", f); nv_debug(priv, "input multiplier: %d\n", m); nv_debug(priv, "numerator : 0x%08x\n", n); nv_debug(priv, "denominator : 0x%08x\n", d); nv_debug(priv, "timer frequency : %dHz\n", (f * m) * d / n); + nv_debug(priv, "time low : 0x%08x\n", lo); + nv_debug(priv, "time high : 0x%08x\n", hi); nv_wr32(priv, NV04_PTIMER_NUMERATOR, n); nv_wr32(priv, NV04_PTIMER_DENOMINATOR, d); nv_wr32(priv, NV04_PTIMER_INTR_0, 0xffffffff); nv_wr32(priv, NV04_PTIMER_INTR_EN_0, 0x00000000); + nv_wr32(priv, NV04_PTIMER_TIME_1, hi); + nv_wr32(priv, NV04_PTIMER_TIME_0, lo); + return 0; } @@ -238,6 +249,8 @@ static int nv04_timer_fini(struct nouveau_object *object, bool suspend) { struct nv04_timer_priv *priv = (void *)object; + if (suspend) + priv->suspend_time = nv04_timer_read(&priv->base); nv_wr32(priv, NV04_PTIMER_INTR_EN_0, 0x00000000); return nouveau_timer_fini(&priv->base, suspend); } |