This source file includes following definitions.
- nv84_fence_emit32
- nv84_fence_sync32
- nv84_fence_emit
- nv84_fence_sync
- nv84_fence_read
- nv84_fence_context_del
- nv84_fence_context_new
- nv84_fence_suspend
- nv84_fence_resume
- nv84_fence_destroy
- nv84_fence_create
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25 #include "nouveau_drv.h"
26 #include "nouveau_dma.h"
27 #include "nouveau_fence.h"
28 #include "nouveau_vmm.h"
29
30 #include "nv50_display.h"
31
32 static int
33 nv84_fence_emit32(struct nouveau_channel *chan, u64 virtual, u32 sequence)
34 {
35 int ret = RING_SPACE(chan, 8);
36 if (ret == 0) {
37 BEGIN_NV04(chan, 0, NV11_SUBCHAN_DMA_SEMAPHORE, 1);
38 OUT_RING (chan, chan->vram.handle);
39 BEGIN_NV04(chan, 0, NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH, 5);
40 OUT_RING (chan, upper_32_bits(virtual));
41 OUT_RING (chan, lower_32_bits(virtual));
42 OUT_RING (chan, sequence);
43 OUT_RING (chan, NV84_SUBCHAN_SEMAPHORE_TRIGGER_WRITE_LONG);
44 OUT_RING (chan, 0x00000000);
45 FIRE_RING (chan);
46 }
47 return ret;
48 }
49
50 static int
51 nv84_fence_sync32(struct nouveau_channel *chan, u64 virtual, u32 sequence)
52 {
53 int ret = RING_SPACE(chan, 7);
54 if (ret == 0) {
55 BEGIN_NV04(chan, 0, NV11_SUBCHAN_DMA_SEMAPHORE, 1);
56 OUT_RING (chan, chan->vram.handle);
57 BEGIN_NV04(chan, 0, NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH, 4);
58 OUT_RING (chan, upper_32_bits(virtual));
59 OUT_RING (chan, lower_32_bits(virtual));
60 OUT_RING (chan, sequence);
61 OUT_RING (chan, NV84_SUBCHAN_SEMAPHORE_TRIGGER_ACQUIRE_GEQUAL);
62 FIRE_RING (chan);
63 }
64 return ret;
65 }
66
67 static int
68 nv84_fence_emit(struct nouveau_fence *fence)
69 {
70 struct nouveau_channel *chan = fence->channel;
71 struct nv84_fence_chan *fctx = chan->fence;
72 u64 addr = fctx->vma->addr + chan->chid * 16;
73
74 return fctx->base.emit32(chan, addr, fence->base.seqno);
75 }
76
77 static int
78 nv84_fence_sync(struct nouveau_fence *fence,
79 struct nouveau_channel *prev, struct nouveau_channel *chan)
80 {
81 struct nv84_fence_chan *fctx = chan->fence;
82 u64 addr = fctx->vma->addr + prev->chid * 16;
83
84 return fctx->base.sync32(chan, addr, fence->base.seqno);
85 }
86
87 static u32
88 nv84_fence_read(struct nouveau_channel *chan)
89 {
90 struct nv84_fence_priv *priv = chan->drm->fence;
91 return nouveau_bo_rd32(priv->bo, chan->chid * 16/4);
92 }
93
94 static void
95 nv84_fence_context_del(struct nouveau_channel *chan)
96 {
97 struct nv84_fence_priv *priv = chan->drm->fence;
98 struct nv84_fence_chan *fctx = chan->fence;
99
100 nouveau_bo_wr32(priv->bo, chan->chid * 16 / 4, fctx->base.sequence);
101 mutex_lock(&priv->mutex);
102 nouveau_vma_del(&fctx->vma);
103 mutex_unlock(&priv->mutex);
104 nouveau_fence_context_del(&fctx->base);
105 chan->fence = NULL;
106 nouveau_fence_context_free(&fctx->base);
107 }
108
109 int
110 nv84_fence_context_new(struct nouveau_channel *chan)
111 {
112 struct nv84_fence_priv *priv = chan->drm->fence;
113 struct nv84_fence_chan *fctx;
114 int ret;
115
116 fctx = chan->fence = kzalloc(sizeof(*fctx), GFP_KERNEL);
117 if (!fctx)
118 return -ENOMEM;
119
120 nouveau_fence_context_new(chan, &fctx->base);
121 fctx->base.emit = nv84_fence_emit;
122 fctx->base.sync = nv84_fence_sync;
123 fctx->base.read = nv84_fence_read;
124 fctx->base.emit32 = nv84_fence_emit32;
125 fctx->base.sync32 = nv84_fence_sync32;
126 fctx->base.sequence = nv84_fence_read(chan);
127
128 mutex_lock(&priv->mutex);
129 ret = nouveau_vma_new(priv->bo, chan->vmm, &fctx->vma);
130 mutex_unlock(&priv->mutex);
131
132 if (ret)
133 nv84_fence_context_del(chan);
134 return ret;
135 }
136
137 static bool
138 nv84_fence_suspend(struct nouveau_drm *drm)
139 {
140 struct nv84_fence_priv *priv = drm->fence;
141 int i;
142
143 priv->suspend = vmalloc(array_size(sizeof(u32), drm->chan.nr));
144 if (priv->suspend) {
145 for (i = 0; i < drm->chan.nr; i++)
146 priv->suspend[i] = nouveau_bo_rd32(priv->bo, i*4);
147 }
148
149 return priv->suspend != NULL;
150 }
151
152 static void
153 nv84_fence_resume(struct nouveau_drm *drm)
154 {
155 struct nv84_fence_priv *priv = drm->fence;
156 int i;
157
158 if (priv->suspend) {
159 for (i = 0; i < drm->chan.nr; i++)
160 nouveau_bo_wr32(priv->bo, i*4, priv->suspend[i]);
161 vfree(priv->suspend);
162 priv->suspend = NULL;
163 }
164 }
165
166 static void
167 nv84_fence_destroy(struct nouveau_drm *drm)
168 {
169 struct nv84_fence_priv *priv = drm->fence;
170 nouveau_bo_unmap(priv->bo);
171 if (priv->bo)
172 nouveau_bo_unpin(priv->bo);
173 nouveau_bo_ref(NULL, &priv->bo);
174 drm->fence = NULL;
175 kfree(priv);
176 }
177
178 int
179 nv84_fence_create(struct nouveau_drm *drm)
180 {
181 struct nv84_fence_priv *priv;
182 u32 domain;
183 int ret;
184
185 priv = drm->fence = kzalloc(sizeof(*priv), GFP_KERNEL);
186 if (!priv)
187 return -ENOMEM;
188
189 priv->base.dtor = nv84_fence_destroy;
190 priv->base.suspend = nv84_fence_suspend;
191 priv->base.resume = nv84_fence_resume;
192 priv->base.context_new = nv84_fence_context_new;
193 priv->base.context_del = nv84_fence_context_del;
194
195 priv->base.uevent = true;
196
197 mutex_init(&priv->mutex);
198
199
200 domain = drm->client.device.info.ram_size != 0 ? TTM_PL_FLAG_VRAM :
201
202
203
204
205 TTM_PL_FLAG_TT | TTM_PL_FLAG_UNCACHED;
206 ret = nouveau_bo_new(&drm->client, 16 * drm->chan.nr, 0,
207 domain, 0, 0, NULL, NULL, &priv->bo);
208 if (ret == 0) {
209 ret = nouveau_bo_pin(priv->bo, domain, false);
210 if (ret == 0) {
211 ret = nouveau_bo_map(priv->bo);
212 if (ret)
213 nouveau_bo_unpin(priv->bo);
214 }
215 if (ret)
216 nouveau_bo_ref(NULL, &priv->bo);
217 }
218
219 if (ret)
220 nv84_fence_destroy(drm);
221 return ret;
222 }