1 /* 2 * Copyright 2012 Red Hat Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * Authors: Ben Skeggs 23 */ 24 25 #include "nouveau_drm.h" 26 #include "nouveau_dma.h" 27 #include "nouveau_fence.h" 28 29 #include "nv50_display.h" 30 31 static int 32 nvc0_fence_emit32(struct nouveau_channel *chan, u64 virtual, u32 sequence) 33 { 34 int ret = RING_SPACE(chan, 6); 35 if (ret == 0) { 36 BEGIN_NVC0(chan, 0, NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH, 5); 37 OUT_RING (chan, upper_32_bits(virtual)); 38 OUT_RING (chan, lower_32_bits(virtual)); 39 OUT_RING (chan, sequence); 40 OUT_RING (chan, NV84_SUBCHAN_SEMAPHORE_TRIGGER_WRITE_LONG); 41 OUT_RING (chan, 0x00000000); 42 FIRE_RING (chan); 43 } 44 return ret; 45 } 46 47 static int 48 nvc0_fence_sync32(struct nouveau_channel *chan, u64 virtual, u32 sequence) 49 { 50 int ret = RING_SPACE(chan, 5); 51 if (ret == 0) { 52 BEGIN_NVC0(chan, 0, NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH, 4); 53 OUT_RING (chan, upper_32_bits(virtual)); 54 OUT_RING (chan, lower_32_bits(virtual)); 55 OUT_RING (chan, sequence); 56 OUT_RING (chan, NV84_SUBCHAN_SEMAPHORE_TRIGGER_ACQUIRE_GEQUAL | 57 NVC0_SUBCHAN_SEMAPHORE_TRIGGER_YIELD); 58 FIRE_RING (chan); 59 } 60 return ret; 61 } 62 63 static int 64 nvc0_fence_context_new(struct nouveau_channel *chan) 65 { 66 int ret = nv84_fence_context_new(chan); 67 if (ret == 0) { 68 struct nv84_fence_chan *fctx = chan->fence; 69 fctx->base.emit32 = nvc0_fence_emit32; 70 fctx->base.sync32 = nvc0_fence_sync32; 71 } 72 return ret; 73 } 74 75 int 76 nvc0_fence_create(struct nouveau_drm *drm) 77 { 78 int ret = nv84_fence_create(drm); 79 if (ret == 0) { 80 struct nv84_fence_priv *priv = drm->fence; 81 priv->base.context_new = nvc0_fence_context_new; 82 } 83 return ret; 84 } 85