1 files changed, 1 insertions, 102 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_dma.c b/drivers/gpu/drm/nouveau/nouveau_dma.c
index a1f329ef0641..017a803121d4 100644
--- a/drivers/gpu/drm/nouveau/nouveau_dma.c
+++ b/drivers/gpu/drm/nouveau/nouveau_dma.c
@@ -43,8 +43,6 @@ READ_GET(struct nouveau_channel *chan, uint64_t *prev_get, int *timeout)
 	uint64_t val;
 
 	val = nvif_rd32(chan->userd, chan->user_get);
-        if (chan->user_get_hi)
-		val |= (uint64_t)nvif_rd32(chan->userd, chan->user_get_hi) << 32;
 
 	/* reset counter as long as GET is still advancing, this is
 	 * to avoid misdetecting a GPU lockup if the GPU happens to
@@ -68,111 +66,12 @@ READ_GET(struct nouveau_channel *chan, uint64_t *prev_get, int *timeout)
 	return (val - chan->push.addr) >> 2;
 }
 
-void
-nv50_dma_push(struct nouveau_channel *chan, u64 offset, u32 length,
-	      bool no_prefetch)
-{
-	struct nvif_user *user = &chan->cli->drm->client.device.user;
-	struct nouveau_bo *pb = chan->push.buffer;
-	int ip = (chan->dma.ib_put * 2) + chan->dma.ib_base;
-
-	BUG_ON(chan->dma.ib_free < 1);
-	WARN_ON(length > NV50_DMA_PUSH_MAX_LENGTH);
-
-	nouveau_bo_wr32(pb, ip++, lower_32_bits(offset));
-	nouveau_bo_wr32(pb, ip++, upper_32_bits(offset) | length << 8 |
-			(no_prefetch ? (1 << 31) : 0));
-
-	chan->dma.ib_put = (chan->dma.ib_put + 1) & chan->dma.ib_max;
-
-	mb();
-	/* Flush writes. */
-	nouveau_bo_rd32(pb, 0);
-
-	nvif_wr32(chan->userd, 0x8c, chan->dma.ib_put);
-	if (user->func && user->func->doorbell)
-		user->func->doorbell(user, chan->token);
-	chan->dma.ib_free--;
-}
-
-static int
-nv50_dma_push_wait(struct nouveau_channel *chan, int count)
-{
-	uint32_t cnt = 0, prev_get = 0;
-
-	while (chan->dma.ib_free < count) {
-		uint32_t get = nvif_rd32(chan->userd, 0x88);
-		if (get != prev_get) {
-			prev_get = get;
-			cnt = 0;
-		}
-
-		if ((++cnt & 0xff) == 0) {
-			udelay(1);
-			if (cnt > 100000)
-				return -EBUSY;
-		}
-
-		chan->dma.ib_free = get - chan->dma.ib_put;
-		if (chan->dma.ib_free <= 0)
-			chan->dma.ib_free += chan->dma.ib_max;
-	}
-
-	return 0;
-}
-
-static int
-nv50_dma_wait(struct nouveau_channel *chan, int slots, int count)
-{
-	uint64_t prev_get = 0;
-	int ret, cnt = 0;
-
-	ret = nv50_dma_push_wait(chan, slots + 1);
-	if (unlikely(ret))
-		return ret;
-
-	while (chan->dma.free < count) {
-		int get = READ_GET(chan, &prev_get, &cnt);
-		if (unlikely(get < 0)) {
-			if (get == -EINVAL)
-				continue;
-
-			return get;
-		}
-
-		if (get <= chan->dma.cur) {
-			chan->dma.free = chan->dma.max - chan->dma.cur;
-			if (chan->dma.free >= count)
-				break;
-
-			FIRE_RING(chan);
-			do {
-				get = READ_GET(chan, &prev_get, &cnt);
-				if (unlikely(get < 0)) {
-					if (get == -EINVAL)
-						continue;
-					return get;
-				}
-			} while (get == 0);
-			chan->dma.cur = 0;
-			chan->dma.put = 0;
-		}
-
-		chan->dma.free = get - chan->dma.cur - 1;
-	}
-
-	return 0;
-}
-
 int
-nouveau_dma_wait(struct nouveau_channel *chan, int slots, int size)
+nouveau_dma_wait(struct nouveau_channel *chan, int size)
 {
 	uint64_t prev_get = 0;
 	int cnt = 0, get;
 
-	if (chan->dma.ib_max)
-		return nv50_dma_wait(chan, slots, size);
-
 	while (chan->dma.free < size) {
 		get = READ_GET(chan, &prev_get, &cnt);
 		if (unlikely(get == -EBUSY))