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Lines Matching refs:get

61 /* Fetch and adjust GPU GET pointer
64  *  value >= 0, the adjusted GET pointer
65  *  -EINVAL if GET pointer currently outside main push buffer
77 	/* reset counter as long as GET is still advancing, this is
129 		uint32_t get = nvif_rd32(&chan->user, 0x88);
130 		if (get != prev_get) {
131 			prev_get = get;
141 		chan->dma.ib_free = get - chan->dma.ib_put;
160 		int get = READ_GET(chan, &prev_get, &cnt);
161 		if (unlikely(get < 0)) {
162 			if (get == -EINVAL)
165 			return get;
168 		if (get <= chan->dma.cur) {
175 				get = READ_GET(chan, &prev_get, &cnt);
176 				if (unlikely(get < 0)) {
177 					if (get == -EINVAL)
179 					return get;
181 			} while (get == 0);
186 		chan->dma.free = get - chan->dma.cur - 1;
196 	int cnt = 0, get;
202 		get = READ_GET(chan, &prev_get, &cnt);
203 		if (unlikely(get == -EBUSY))
206 		/* loop until we have a usable GET pointer.  the value
211 		 * the other case we discard GET is while the GPU is fetching
215 		if (unlikely(get == -EINVAL) || get < NOUVEAU_DMA_SKIPS)
218 		if (get <= chan->dma.cur) {
220 			 * idle (GET == PUT) so we have free space up until
229 			 * GET==PUT, in which case the below conditional will
242 			/* wait for GET to depart from the skips area.
243 			 * prevents writing GET==PUT and causing a race
248 				get = READ_GET(chan, &prev_get, &cnt);
249 				if (unlikely(get == -EBUSY))
251 				if (unlikely(get == -EINVAL))
253 			} while (get <= NOUVEAU_DMA_SKIPS);
264 		 * current GET pointer.  the "- 1" is to ensure there's
266 		 * push buffer if we require it.  we can never get GET == PUT
269 		chan->dma.free = get - chan->dma.cur - 1;