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Lines Matching refs:chan

44 OUT_RINGp(struct nouveau_channel *chan, const void *data, unsigned nr_dwords)
47 	u32 *mem = ttm_kmap_obj_virtual(&chan->push.buffer->kmap, &is_iomem);
48 	mem = &mem[chan->dma.cur];
53 	chan->dma.cur += nr_dwords;
69 READ_GET(struct nouveau_channel *chan, uint64_t *prev_get, int *timeout)
73 	val = nvif_rd32(&chan->user, chan->user_get);
74         if (chan->user_get_hi)
75                 val |= (uint64_t)nvif_rd32(&chan->user, chan->user_get_hi) << 32;
92 	if (val < chan->push.addr ||
93 	    val > chan->push.addr + (chan->dma.max << 2))
96 	return (val - chan->push.addr) >> 2;
100 nv50_dma_push(struct nouveau_channel *chan, u64 offset, int length)
102 	struct nvif_user *user = &chan->drm->client.device.user;
103 	struct nouveau_bo *pb = chan->push.buffer;
104 	int ip = (chan->dma.ib_put * 2) + chan->dma.ib_base;
106 	BUG_ON(chan->dma.ib_free < 1);
111 	chan->dma.ib_put = (chan->dma.ib_put + 1) & chan->dma.ib_max;
117 	nvif_wr32(&chan->user, 0x8c, chan->dma.ib_put);
119 		user->func->doorbell(user, chan->token);
120 	chan->dma.ib_free--;
124 nv50_dma_push_wait(struct nouveau_channel *chan, int count)
128 	while (chan->dma.ib_free < count) {
129 		uint32_t get = nvif_rd32(&chan->user, 0x88);
141 		chan->dma.ib_free = get - chan->dma.ib_put;
142 		if (chan->dma.ib_free <= 0)
143 			chan->dma.ib_free += chan->dma.ib_max;
150 nv50_dma_wait(struct nouveau_channel *chan, int slots, int count)
155 	ret = nv50_dma_push_wait(chan, slots + 1);
159 	while (chan->dma.free < count) {
160 		int get = READ_GET(chan, &prev_get, &cnt);
168 		if (get <= chan->dma.cur) {
169 			chan->dma.free = chan->dma.max - chan->dma.cur;
170 			if (chan->dma.free >= count)
173 			FIRE_RING(chan);
175 				get = READ_GET(chan, &prev_get, &cnt);
182 			chan->dma.cur = 0;
183 			chan->dma.put = 0;
186 		chan->dma.free = get - chan->dma.cur - 1;
193 nouveau_dma_wait(struct nouveau_channel *chan, int slots, int size)
198 	if (chan->dma.ib_max)
199 		return nv50_dma_wait(chan, slots, size);
201 	while (chan->dma.free < size) {
202 		get = READ_GET(chan, &prev_get, &cnt);
218 		if (get <= chan->dma.cur) {
232 			chan->dma.free = chan->dma.max - chan->dma.cur;
233 			if (chan->dma.free >= size)
240 			OUT_RING(chan, chan->push.addr | 0x20000000);
248 				get = READ_GET(chan, &prev_get, &cnt);
259 			chan->dma.cur  =
260 			chan->dma.put  = NOUVEAU_DMA_SKIPS;
269 		chan->dma.free = get - chan->dma.cur - 1;