diff --git a/drivers/gpu/drm/nouveau/core/core/parent.c b/drivers/gpu/drm/nouveau/core/core/parent.c
index a1ea034611d5..db7c54943102 100644
--- a/drivers/gpu/drm/nouveau/core/core/parent.c
+++ b/drivers/gpu/drm/nouveau/core/core/parent.c
@@ -101,23 +101,6 @@ nouveau_parent_create_(struct nouveau_object *parent,
 	return 0;
 }
 
-int
-_nouveau_parent_ctor(struct nouveau_object *parent,
-		     struct nouveau_object *engine,
-		     struct nouveau_oclass *oclass, void *data, u32 size,
-		     struct nouveau_object **pobject)
-{
-	struct nouveau_parent *object;
-	int ret;
-
-	ret = nouveau_parent_create(parent, engine, oclass, 0, NULL, 0, &object);
-	*pobject = nv_object(object);
-	if (ret)
-		return ret;
-
-	return 0;
-}
-
 void
 nouveau_parent_destroy(struct nouveau_parent *parent)
 {
diff --git a/drivers/gpu/drm/nouveau/core/include/core/parent.h b/drivers/gpu/drm/nouveau/core/include/core/parent.h
index d3aa251a5eb6..3c2e940eb0f8 100644
--- a/drivers/gpu/drm/nouveau/core/include/core/parent.h
+++ b/drivers/gpu/drm/nouveau/core/include/core/parent.h
@@ -50,9 +50,6 @@ int  nouveau_parent_create_(struct nouveau_object *, struct nouveau_object *,
 			    int size, void **);
 void nouveau_parent_destroy(struct nouveau_parent *);
 
-int  _nouveau_parent_ctor(struct nouveau_object *, struct nouveau_object *,
-			  struct nouveau_oclass *, void *, u32,
-			  struct nouveau_object **);
 void _nouveau_parent_dtor(struct nouveau_object *);
 #define _nouveau_parent_init _nouveau_object_init
 #define _nouveau_parent_fini _nouveau_object_fini
diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/timer.h b/drivers/gpu/drm/nouveau/core/include/subdev/timer.h
index 49bff901544c..c24ec8ab3db4 100644
--- a/drivers/gpu/drm/nouveau/core/include/subdev/timer.h
+++ b/drivers/gpu/drm/nouveau/core/include/subdev/timer.h
@@ -26,7 +26,7 @@ void nouveau_timer_alarm(void *, u32 nsec, struct nouveau_alarm *);
 struct nouveau_timer {
 	struct nouveau_subdev base;
 	u64  (*read)(struct nouveau_timer *);
-	void (*alarm)(struct nouveau_timer *, u32 time, struct nouveau_alarm *);
+	void (*alarm)(struct nouveau_timer *, u64 time, struct nouveau_alarm *);
 };
 
 static inline struct nouveau_timer *
diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/base.c b/drivers/gpu/drm/nouveau/core/subdev/bios/base.c
index 2fbb6df697cd..dcb5c2befc92 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/bios/base.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/bios/base.c
@@ -185,23 +185,22 @@ static void
 nouveau_bios_shadow_acpi(struct nouveau_bios *bios)
 {
 	struct pci_dev *pdev = nv_device(bios)->pdev;
-	int cnt = 65536 / 4096;
-	int ret;
+	int ret, cnt, i;
+	u8  data[3];
 
 	if (!nouveau_acpi_rom_supported(pdev))
 		return;
 
-	bios->data = kmalloc(65536, GFP_KERNEL);
 	bios->size = 0;
-	if (!bios->data)
-		return;
+	if (nouveau_acpi_get_bios_chunk(data, 0, 3) == 3)
+		bios->size = data[2] * 512;
 
-	while (cnt--) {
-		ret = nouveau_acpi_get_bios_chunk(bios->data, bios->size, 4096);
-		if (ret != 4096)
-			return;
-
-		bios->size += 4096;
+	bios->data = kmalloc(bios->size, GFP_KERNEL);
+	for (i = 0; bios->data && i < bios->size; i += cnt) {
+		cnt = min((bios->size - i), (u32)4096);
+		ret = nouveau_acpi_get_bios_chunk(bios->data, i, cnt);
+		if (ret != cnt)
+			break;
 	}
 }
 
diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nv50.c
index fd181fbceddb..f4147f67eda6 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/clock/nv50.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/clock/nv50.c
@@ -90,6 +90,7 @@ nv50_clock_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
 		return ret;
 
 	priv->base.pll_set = nv50_clock_pll_set;
+	priv->base.pll_calc = nv04_clock_pll_calc;
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/nouveau/core/subdev/therm/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/therm/nv50.c
index f87a7a3eb4e7..9360ddd469e7 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/therm/nv50.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/therm/nv50.c
@@ -92,7 +92,7 @@ nv50_fan_pwm_clock(struct nouveau_therm *therm)
 		if (nv_rd32(therm, 0xc040) & 0x800000) {
 			/* Use the HOST clock (100 MHz)
 			* Where does this constant(2.4) comes from? */
-			pwm_clock = (100000000 >> pwm_div) / 10 / 24;
+			pwm_clock = (100000000 >> pwm_div) * 10 / 24;
 		} else {
 			/* Where does this constant(20) comes from? */
 			pwm_clock = (crystal * 1000) >> pwm_div;
diff --git a/drivers/gpu/drm/nouveau/core/subdev/timer/nv04.c b/drivers/gpu/drm/nouveau/core/subdev/timer/nv04.c
index 49976be4d73b..c26ca9bef671 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/timer/nv04.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/timer/nv04.c
@@ -85,7 +85,7 @@ nv04_timer_alarm_trigger(struct nouveau_timer *ptimer)
 }
 
 static void
-nv04_timer_alarm(struct nouveau_timer *ptimer, u32 time,
+nv04_timer_alarm(struct nouveau_timer *ptimer, u64 time,
 		 struct nouveau_alarm *alarm)
 {
 	struct nv04_timer_priv *priv = (void *)ptimer;