41 READ_GET(struct nouveau_channel *chan, uint64_t *prev_get, int *timeout)  in READ_GET()  argument
45 	val = nvif_rd32(chan->userd, chan->user_get);  in READ_GET()
46         if (chan->user_get_hi)  in READ_GET()
47 		val |= (uint64_t)nvif_rd32(chan->userd, chan->user_get_hi) << 32;  in READ_GET()
64 	if (val < chan->push.addr ||  in READ_GET()
65 	    val > chan->push.addr + (chan->dma.max << 2))  in READ_GET()
68 	return (val - chan->push.addr) >> 2;  in READ_GET()
72 nv50_dma_push(struct nouveau_channel *chan, u64 offset, u32 length,  in nv50_dma_push()  argument
75 	struct nvif_user *user = &chan->drm->client.device.user;  in nv50_dma_push()
76 	struct nouveau_bo *pb = chan->push.buffer;  in nv50_dma_push()
77 	int ip = (chan->dma.ib_put * 2) + chan->dma.ib_base;  in nv50_dma_push()
79 	BUG_ON(chan->dma.ib_free < 1);  in nv50_dma_push()
86 	chan->dma.ib_put = (chan->dma.ib_put + 1) & chan->dma.ib_max;  in nv50_dma_push()
92 	nvif_wr32(chan->userd, 0x8c, chan->dma.ib_put);  in nv50_dma_push()
94 		user->func->doorbell(user, chan->token);  in nv50_dma_push()
95 	chan->dma.ib_free--;  in nv50_dma_push()
99 nv50_dma_push_wait(struct nouveau_channel *chan, int count)  in nv50_dma_push_wait()  argument
103 	while (chan->dma.ib_free < count) {  in nv50_dma_push_wait()
104 		uint32_t get = nvif_rd32(chan->userd, 0x88);  in nv50_dma_push_wait()
116 		chan->dma.ib_free = get - chan->dma.ib_put;  in nv50_dma_push_wait()
117 		if (chan->dma.ib_free <= 0)  in nv50_dma_push_wait()
118 			chan->dma.ib_free += chan->dma.ib_max;  in nv50_dma_push_wait()
125 nv50_dma_wait(struct nouveau_channel *chan, int slots, int count)  in nv50_dma_wait()  argument
130 	ret = nv50_dma_push_wait(chan, slots + 1);  in nv50_dma_wait()
134 	while (chan->dma.free < count) {  in nv50_dma_wait()
135 		int get = READ_GET(chan, &prev_get, &cnt);  in nv50_dma_wait()
143 		if (get <= chan->dma.cur) {  in nv50_dma_wait()
144 			chan->dma.free = chan->dma.max - chan->dma.cur;  in nv50_dma_wait()
145 			if (chan->dma.free >= count)  in nv50_dma_wait()
148 			FIRE_RING(chan);  in nv50_dma_wait()
150 				get = READ_GET(chan, &prev_get, &cnt);  in nv50_dma_wait()
157 			chan->dma.cur = 0;  in nv50_dma_wait()
158 			chan->dma.put = 0;  in nv50_dma_wait()
161 		chan->dma.free = get - chan->dma.cur - 1;  in nv50_dma_wait()
168 nouveau_dma_wait(struct nouveau_channel *chan, int slots, int size)  in nouveau_dma_wait()  argument
173 	if (chan->dma.ib_max)  in nouveau_dma_wait()
174 		return nv50_dma_wait(chan, slots, size);  in nouveau_dma_wait()
176 	while (chan->dma.free < size) {  in nouveau_dma_wait()
177 		get = READ_GET(chan, &prev_get, &cnt);  in nouveau_dma_wait()
193 		if (get <= chan->dma.cur) {  in nouveau_dma_wait()
207 			chan->dma.free = chan->dma.max - chan->dma.cur;  in nouveau_dma_wait()
208 			if (chan->dma.free >= size)  in nouveau_dma_wait()
215 			OUT_RING(chan, chan->push.addr | 0x20000000);  in nouveau_dma_wait()
223 				get = READ_GET(chan, &prev_get, &cnt);  in nouveau_dma_wait()
234 			chan->dma.cur  =  in nouveau_dma_wait()
235 			chan->dma.put  = NOUVEAU_DMA_SKIPS;  in nouveau_dma_wait()
244 		chan->dma.free = get - chan->dma.cur - 1;  in nouveau_dma_wait()