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 <core/object.h> 26 #include <core/client.h> 27 #include <core/class.h> 28 29 #include <engine/fifo.h> 30 31 #include "nouveau_drm.h" 32 #include "nouveau_dma.h" 33 #include "nouveau_fence.h" 34 35 #include "nv50_display.h" 36 37 static int 38 nvc0_fence_emit32(struct nouveau_channel *chan, u64 virtual, u32 sequence) 39 { 40 int ret = RING_SPACE(chan, 6); 41 if (ret == 0) { 42 BEGIN_NVC0(chan, 0, NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH, 5); 43 OUT_RING (chan, upper_32_bits(virtual)); 44 OUT_RING (chan, lower_32_bits(virtual)); 45 OUT_RING (chan, sequence); 46 OUT_RING (chan, NV84_SUBCHAN_SEMAPHORE_TRIGGER_WRITE_LONG); 47 OUT_RING (chan, 0x00000000); 48 FIRE_RING (chan); 49 } 50 return ret; 51 } 52 53 static int 54 nvc0_fence_sync32(struct nouveau_channel *chan, u64 virtual, u32 sequence) 55 { 56 int ret = RING_SPACE(chan, 5); 57 if (ret == 0) { 58 BEGIN_NVC0(chan, 0, NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH, 4); 59 OUT_RING (chan, upper_32_bits(virtual)); 60 OUT_RING (chan, lower_32_bits(virtual)); 61 OUT_RING (chan, sequence); 62 OUT_RING (chan, NV84_SUBCHAN_SEMAPHORE_TRIGGER_ACQUIRE_GEQUAL | 63 NVC0_SUBCHAN_SEMAPHORE_TRIGGER_YIELD); 64 FIRE_RING (chan); 65 } 66 return ret; 67 } 68 69 static int 70 nvc0_fence_context_new(struct nouveau_channel *chan) 71 { 72 int ret = nv84_fence_context_new(chan); 73 if (ret == 0) { 74 struct nv84_fence_chan *fctx = chan->fence; 75 fctx->base.emit32 = nvc0_fence_emit32; 76 fctx->base.sync32 = nvc0_fence_sync32; 77 } 78 return ret; 79 } 80 81 int 82 nvc0_fence_create(struct nouveau_drm *drm) 83 { 84 int ret = nv84_fence_create(drm); 85 if (ret == 0) { 86 struct nv84_fence_priv *priv = drm->fence; 87 priv->base.context_new = nvc0_fence_context_new; 88 } 89 return ret; 90 } 91