Ben Skeggs | 60e5cb7 | 2013-02-14 12:59:36 +1000 | [diff] [blame] | 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 <bskeggs@redhat.com> |
| 23 | */ |
| 24 | |
Ben Skeggs | fdb751e | 2014-08-10 04:10:23 +1000 | [diff] [blame] | 25 | #include <nvif/os.h> |
| 26 | #include <nvif/class.h> |
Ben Skeggs | 60e5cb7 | 2013-02-14 12:59:36 +1000 | [diff] [blame] | 27 | |
| 28 | #include "nouveau_drm.h" |
| 29 | #include "nouveau_dma.h" |
| 30 | #include "nv10_fence.h" |
| 31 | |
| 32 | int |
| 33 | nv17_fence_sync(struct nouveau_fence *fence, |
| 34 | struct nouveau_channel *prev, struct nouveau_channel *chan) |
| 35 | { |
Ben Skeggs | a01ca78 | 2015-08-20 14:54:15 +1000 | [diff] [blame] | 36 | struct nouveau_cli *cli = (void *)prev->user.client; |
Ben Skeggs | 60e5cb7 | 2013-02-14 12:59:36 +1000 | [diff] [blame] | 37 | struct nv10_fence_priv *priv = chan->drm->fence; |
Ben Skeggs | f45f55c | 2014-08-10 04:10:23 +1000 | [diff] [blame] | 38 | struct nv10_fence_chan *fctx = chan->fence; |
Ben Skeggs | 60e5cb7 | 2013-02-14 12:59:36 +1000 | [diff] [blame] | 39 | u32 value; |
| 40 | int ret; |
| 41 | |
Ben Skeggs | 0ad7286 | 2014-08-10 04:10:22 +1000 | [diff] [blame] | 42 | if (!mutex_trylock(&cli->mutex)) |
Ben Skeggs | 60e5cb7 | 2013-02-14 12:59:36 +1000 | [diff] [blame] | 43 | return -EBUSY; |
| 44 | |
| 45 | spin_lock(&priv->lock); |
| 46 | value = priv->sequence; |
| 47 | priv->sequence += 2; |
| 48 | spin_unlock(&priv->lock); |
| 49 | |
| 50 | ret = RING_SPACE(prev, 5); |
| 51 | if (!ret) { |
| 52 | BEGIN_NV04(prev, 0, NV11_SUBCHAN_DMA_SEMAPHORE, 4); |
Ben Skeggs | f45f55c | 2014-08-10 04:10:23 +1000 | [diff] [blame] | 53 | OUT_RING (prev, fctx->sema.handle); |
Ben Skeggs | 60e5cb7 | 2013-02-14 12:59:36 +1000 | [diff] [blame] | 54 | OUT_RING (prev, 0); |
| 55 | OUT_RING (prev, value + 0); |
| 56 | OUT_RING (prev, value + 1); |
| 57 | FIRE_RING (prev); |
| 58 | } |
| 59 | |
| 60 | if (!ret && !(ret = RING_SPACE(chan, 5))) { |
| 61 | BEGIN_NV04(chan, 0, NV11_SUBCHAN_DMA_SEMAPHORE, 4); |
Ben Skeggs | f45f55c | 2014-08-10 04:10:23 +1000 | [diff] [blame] | 62 | OUT_RING (chan, fctx->sema.handle); |
Ben Skeggs | 60e5cb7 | 2013-02-14 12:59:36 +1000 | [diff] [blame] | 63 | OUT_RING (chan, 0); |
| 64 | OUT_RING (chan, value + 1); |
| 65 | OUT_RING (chan, value + 2); |
| 66 | FIRE_RING (chan); |
| 67 | } |
| 68 | |
Ben Skeggs | 0ad7286 | 2014-08-10 04:10:22 +1000 | [diff] [blame] | 69 | mutex_unlock(&cli->mutex); |
Ben Skeggs | 60e5cb7 | 2013-02-14 12:59:36 +1000 | [diff] [blame] | 70 | return 0; |
| 71 | } |
| 72 | |
| 73 | static int |
| 74 | nv17_fence_context_new(struct nouveau_channel *chan) |
| 75 | { |
| 76 | struct nv10_fence_priv *priv = chan->drm->fence; |
| 77 | struct nv10_fence_chan *fctx; |
| 78 | struct ttm_mem_reg *mem = &priv->bo->bo.mem; |
Ben Skeggs | 60e5cb7 | 2013-02-14 12:59:36 +1000 | [diff] [blame] | 79 | u32 start = mem->start * PAGE_SIZE; |
Maarten Lankhorst | 7a7da59 | 2013-07-23 15:49:39 +0200 | [diff] [blame] | 80 | u32 limit = start + mem->size - 1; |
Ben Skeggs | 60e5cb7 | 2013-02-14 12:59:36 +1000 | [diff] [blame] | 81 | int ret = 0; |
| 82 | |
| 83 | fctx = chan->fence = kzalloc(sizeof(*fctx), GFP_KERNEL); |
| 84 | if (!fctx) |
| 85 | return -ENOMEM; |
| 86 | |
Maarten Lankhorst | 29ba89b | 2014-01-09 11:03:11 +0100 | [diff] [blame] | 87 | nouveau_fence_context_new(chan, &fctx->base); |
Ben Skeggs | 827520c | 2013-02-14 13:20:17 +1000 | [diff] [blame] | 88 | fctx->base.emit = nv10_fence_emit; |
| 89 | fctx->base.read = nv10_fence_read; |
| 90 | fctx->base.sync = nv17_fence_sync; |
Ben Skeggs | 60e5cb7 | 2013-02-14 12:59:36 +1000 | [diff] [blame] | 91 | |
Ben Skeggs | a01ca78 | 2015-08-20 14:54:15 +1000 | [diff] [blame] | 92 | ret = nvif_object_init(&chan->user, NvSema, NV_DMA_FROM_MEMORY, |
Ben Skeggs | 4acfd70 | 2014-08-10 04:10:24 +1000 | [diff] [blame] | 93 | &(struct nv_dma_v0) { |
| 94 | .target = NV_DMA_V0_TARGET_VRAM, |
| 95 | .access = NV_DMA_V0_ACCESS_RDWR, |
Ben Skeggs | 60e5cb7 | 2013-02-14 12:59:36 +1000 | [diff] [blame] | 96 | .start = start, |
| 97 | .limit = limit, |
Ben Skeggs | 4acfd70 | 2014-08-10 04:10:24 +1000 | [diff] [blame] | 98 | }, sizeof(struct nv_dma_v0), |
Ben Skeggs | 0ad7286 | 2014-08-10 04:10:22 +1000 | [diff] [blame] | 99 | &fctx->sema); |
Ben Skeggs | 60e5cb7 | 2013-02-14 12:59:36 +1000 | [diff] [blame] | 100 | if (ret) |
| 101 | nv10_fence_context_del(chan); |
| 102 | return ret; |
| 103 | } |
| 104 | |
| 105 | void |
| 106 | nv17_fence_resume(struct nouveau_drm *drm) |
| 107 | { |
| 108 | struct nv10_fence_priv *priv = drm->fence; |
| 109 | |
| 110 | nouveau_bo_wr32(priv->bo, 0, priv->sequence); |
| 111 | } |
| 112 | |
| 113 | int |
| 114 | nv17_fence_create(struct nouveau_drm *drm) |
| 115 | { |
| 116 | struct nv10_fence_priv *priv; |
| 117 | int ret = 0; |
| 118 | |
| 119 | priv = drm->fence = kzalloc(sizeof(*priv), GFP_KERNEL); |
| 120 | if (!priv) |
| 121 | return -ENOMEM; |
| 122 | |
| 123 | priv->base.dtor = nv10_fence_destroy; |
| 124 | priv->base.resume = nv17_fence_resume; |
| 125 | priv->base.context_new = nv17_fence_context_new; |
| 126 | priv->base.context_del = nv10_fence_context_del; |
Maarten Lankhorst | 29ba89b | 2014-01-09 11:03:11 +0100 | [diff] [blame] | 127 | priv->base.contexts = 31; |
| 128 | priv->base.context_base = fence_context_alloc(priv->base.contexts); |
Ben Skeggs | 60e5cb7 | 2013-02-14 12:59:36 +1000 | [diff] [blame] | 129 | spin_lock_init(&priv->lock); |
| 130 | |
| 131 | ret = nouveau_bo_new(drm->dev, 4096, 0x1000, TTM_PL_FLAG_VRAM, |
Maarten Lankhorst | bb6178b | 2014-01-09 11:03:15 +0100 | [diff] [blame] | 132 | 0, 0x0000, NULL, NULL, &priv->bo); |
Ben Skeggs | 60e5cb7 | 2013-02-14 12:59:36 +1000 | [diff] [blame] | 133 | if (!ret) { |
Ben Skeggs | ad76b3f | 2014-11-10 11:24:27 +1000 | [diff] [blame] | 134 | ret = nouveau_bo_pin(priv->bo, TTM_PL_FLAG_VRAM, false); |
Ben Skeggs | 60e5cb7 | 2013-02-14 12:59:36 +1000 | [diff] [blame] | 135 | if (!ret) { |
| 136 | ret = nouveau_bo_map(priv->bo); |
| 137 | if (ret) |
| 138 | nouveau_bo_unpin(priv->bo); |
| 139 | } |
| 140 | if (ret) |
| 141 | nouveau_bo_ref(NULL, &priv->bo); |
| 142 | } |
| 143 | |
| 144 | if (ret) { |
| 145 | nv10_fence_destroy(drm); |
| 146 | return ret; |
| 147 | } |
| 148 | |
| 149 | nouveau_bo_wr32(priv->bo, 0x000, 0x00000000); |
| 150 | return ret; |
| 151 | } |