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1 | /* |
2 | * Copyright 2018 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 | #include "changk104.h" | |
23 | #include "cgrp.h" | |
24 | ||
25 | #include <core/client.h> | |
26 | #include <core/gpuobj.h> | |
27 | ||
9d24907c | 28 | #include <nvif/clc36f.h> |
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29 | #include <nvif/unpack.h> |
30 | ||
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31 | static u32 |
32 | gv100_fifo_gpfifo_submit_token(struct nvkm_fifo_chan *chan) | |
33 | { | |
34 | return chan->chid; | |
35 | } | |
36 | ||
37e1c45a BS |
37 | static int |
38 | gv100_fifo_gpfifo_engine_valid(struct gk104_fifo_chan *chan, bool ce, bool valid) | |
39 | { | |
40 | struct nvkm_subdev *subdev = &chan->base.fifo->engine.subdev; | |
41 | struct nvkm_device *device = subdev->device; | |
42 | const u32 mask = ce ? 0x00020000 : 0x00010000; | |
43 | const u32 data = valid ? mask : 0x00000000; | |
44 | int ret; | |
45 | ||
46 | /* Block runlist to prevent the channel from being rescheduled. */ | |
47 | mutex_lock(&subdev->mutex); | |
48 | nvkm_mask(device, 0x002630, BIT(chan->runl), BIT(chan->runl)); | |
49 | ||
50 | /* Preempt the channel. */ | |
51 | ret = gk104_fifo_gpfifo_kick_locked(chan); | |
52 | if (ret == 0) { | |
53 | /* Update engine context validity. */ | |
54 | nvkm_kmap(chan->base.inst); | |
55 | nvkm_mo32(chan->base.inst, 0x0ac, mask, data); | |
56 | nvkm_done(chan->base.inst); | |
57 | } | |
58 | ||
59 | /* Resume runlist. */ | |
60 | nvkm_mask(device, 0x002630, BIT(chan->runl), 0); | |
61 | mutex_unlock(&subdev->mutex); | |
62 | return ret; | |
63 | } | |
64 | ||
641d0b30 | 65 | int |
37e1c45a BS |
66 | gv100_fifo_gpfifo_engine_fini(struct nvkm_fifo_chan *base, |
67 | struct nvkm_engine *engine, bool suspend) | |
68 | { | |
69 | struct gk104_fifo_chan *chan = gk104_fifo_chan(base); | |
70 | struct nvkm_gpuobj *inst = chan->base.inst; | |
71 | int ret; | |
72 | ||
73 | if (engine->subdev.index >= NVKM_ENGINE_CE0 && | |
74 | engine->subdev.index <= NVKM_ENGINE_CE_LAST) | |
75 | return gk104_fifo_gpfifo_kick(chan); | |
76 | ||
77 | ret = gv100_fifo_gpfifo_engine_valid(chan, false, false); | |
78 | if (ret && suspend) | |
79 | return ret; | |
80 | ||
81 | nvkm_kmap(inst); | |
82 | nvkm_wo32(inst, 0x0210, 0x00000000); | |
83 | nvkm_wo32(inst, 0x0214, 0x00000000); | |
84 | nvkm_done(inst); | |
85 | return ret; | |
86 | } | |
87 | ||
641d0b30 | 88 | int |
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89 | gv100_fifo_gpfifo_engine_init(struct nvkm_fifo_chan *base, |
90 | struct nvkm_engine *engine) | |
91 | { | |
92 | struct gk104_fifo_chan *chan = gk104_fifo_chan(base); | |
93 | struct nvkm_gpuobj *inst = chan->base.inst; | |
94 | u64 addr; | |
95 | ||
96 | if (engine->subdev.index >= NVKM_ENGINE_CE0 && | |
97 | engine->subdev.index <= NVKM_ENGINE_CE_LAST) | |
98 | return 0; | |
99 | ||
100 | addr = chan->engn[engine->subdev.index].vma->addr; | |
101 | nvkm_kmap(inst); | |
102 | nvkm_wo32(inst, 0x210, lower_32_bits(addr) | 0x00000004); | |
103 | nvkm_wo32(inst, 0x214, upper_32_bits(addr)); | |
104 | nvkm_done(inst); | |
105 | ||
106 | return gv100_fifo_gpfifo_engine_valid(chan, false, true); | |
107 | } | |
108 | ||
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109 | static const struct nvkm_fifo_chan_func |
110 | gv100_fifo_gpfifo = { | |
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111 | .dtor = gk104_fifo_gpfifo_dtor, |
112 | .init = gk104_fifo_gpfifo_init, | |
113 | .fini = gk104_fifo_gpfifo_fini, | |
114 | .ntfy = gf100_fifo_chan_ntfy, | |
115 | .engine_ctor = gk104_fifo_gpfifo_engine_ctor, | |
116 | .engine_dtor = gk104_fifo_gpfifo_engine_dtor, | |
117 | .engine_init = gv100_fifo_gpfifo_engine_init, | |
118 | .engine_fini = gv100_fifo_gpfifo_engine_fini, | |
9d24907c | 119 | .submit_token = gv100_fifo_gpfifo_submit_token, |
37e1c45a BS |
120 | }; |
121 | ||
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122 | int |
123 | gv100_fifo_gpfifo_new_(const struct nvkm_fifo_chan_func *func, | |
124 | struct gk104_fifo *fifo, u64 *runlists, u16 *chid, | |
85532bd9 | 125 | u64 vmm, u64 ioffset, u64 ilength, u64 *inst, bool priv, |
9d24907c | 126 | u32 *token, const struct nvkm_oclass *oclass, |
37e1c45a BS |
127 | struct nvkm_object **pobject) |
128 | { | |
a98a3c52 | 129 | struct nvkm_device *device = fifo->base.engine.subdev.device; |
37e1c45a BS |
130 | struct gk104_fifo_chan *chan; |
131 | int runlist = ffs(*runlists) -1, ret, i; | |
132 | unsigned long engm; | |
133 | u64 subdevs = 0; | |
a98a3c52 BS |
134 | u64 usermem, mthd; |
135 | u32 size; | |
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136 | |
137 | if (!vmm || runlist < 0 || runlist >= fifo->runlist_nr) | |
138 | return -EINVAL; | |
139 | *runlists = BIT_ULL(runlist); | |
140 | ||
141 | engm = fifo->runlist[runlist].engm; | |
142 | for_each_set_bit(i, &engm, fifo->engine_nr) { | |
143 | if (fifo->engine[i].engine) | |
144 | subdevs |= BIT_ULL(fifo->engine[i].engine->subdev.index); | |
145 | } | |
146 | ||
147 | /* Allocate the channel. */ | |
148 | if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL))) | |
149 | return -ENOMEM; | |
150 | *pobject = &chan->base.object; | |
151 | chan->fifo = fifo; | |
152 | chan->runl = runlist; | |
153 | INIT_LIST_HEAD(&chan->head); | |
154 | ||
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155 | ret = nvkm_fifo_chan_ctor(func, &fifo->base, 0x1000, 0x1000, true, vmm, |
156 | 0, subdevs, 1, fifo->user.bar->addr, 0x200, | |
37e1c45a BS |
157 | oclass, &chan->base); |
158 | if (ret) | |
159 | return ret; | |
160 | ||
161 | *chid = chan->base.chid; | |
86b442d7 | 162 | *inst = chan->base.inst->addr; |
9d24907c | 163 | *token = chan->base.func->submit_token(&chan->base); |
37e1c45a BS |
164 | |
165 | /* Hack to support GPUs where even individual channels should be | |
166 | * part of a channel group. | |
167 | */ | |
168 | if (fifo->func->cgrp_force) { | |
169 | if (!(chan->cgrp = kmalloc(sizeof(*chan->cgrp), GFP_KERNEL))) | |
170 | return -ENOMEM; | |
171 | chan->cgrp->id = chan->base.chid; | |
172 | INIT_LIST_HEAD(&chan->cgrp->head); | |
173 | INIT_LIST_HEAD(&chan->cgrp->chan); | |
174 | chan->cgrp->chan_nr = 0; | |
175 | } | |
176 | ||
177 | /* Clear channel control registers. */ | |
178 | usermem = chan->base.chid * 0x200; | |
179 | ilength = order_base_2(ilength / 8); | |
180 | ||
181 | nvkm_kmap(fifo->user.mem); | |
182 | for (i = 0; i < 0x200; i += 4) | |
183 | nvkm_wo32(fifo->user.mem, usermem + i, 0x00000000); | |
184 | nvkm_done(fifo->user.mem); | |
185 | usermem = nvkm_memory_addr(fifo->user.mem) + usermem; | |
186 | ||
a98a3c52 BS |
187 | /* Allocate fault method buffer (magics come from nvgpu). */ |
188 | size = nvkm_rd32(device, 0x104028); /* NV_PCE_PCE_MAP */ | |
189 | size = 27 * 5 * (((9 + 1 + 3) * hweight32(size)) + 2); | |
190 | size = roundup(size, PAGE_SIZE); | |
191 | ||
192 | ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, size, 0x1000, true, | |
193 | &chan->mthd); | |
194 | if (ret) | |
195 | return ret; | |
196 | ||
197 | mthd = nvkm_memory_bar2(chan->mthd); | |
198 | if (mthd == ~0ULL) | |
199 | return -EFAULT; | |
200 | ||
37e1c45a BS |
201 | /* RAMFC */ |
202 | nvkm_kmap(chan->base.inst); | |
203 | nvkm_wo32(chan->base.inst, 0x008, lower_32_bits(usermem)); | |
204 | nvkm_wo32(chan->base.inst, 0x00c, upper_32_bits(usermem)); | |
205 | nvkm_wo32(chan->base.inst, 0x010, 0x0000face); | |
206 | nvkm_wo32(chan->base.inst, 0x030, 0x7ffff902); | |
207 | nvkm_wo32(chan->base.inst, 0x048, lower_32_bits(ioffset)); | |
208 | nvkm_wo32(chan->base.inst, 0x04c, upper_32_bits(ioffset) | | |
209 | (ilength << 16)); | |
210 | nvkm_wo32(chan->base.inst, 0x084, 0x20400000); | |
211 | nvkm_wo32(chan->base.inst, 0x094, 0x30000001); | |
85532bd9 | 212 | nvkm_wo32(chan->base.inst, 0x0e4, priv ? 0x00000020 : 0x00000000); |
37e1c45a | 213 | nvkm_wo32(chan->base.inst, 0x0e8, chan->base.chid); |
85532bd9 | 214 | nvkm_wo32(chan->base.inst, 0x0f4, 0x00001000); |
37e1c45a BS |
215 | nvkm_wo32(chan->base.inst, 0x0f8, 0x10003080); |
216 | nvkm_mo32(chan->base.inst, 0x218, 0x00000000, 0x00000000); | |
a98a3c52 BS |
217 | nvkm_wo32(chan->base.inst, 0x220, lower_32_bits(mthd)); |
218 | nvkm_wo32(chan->base.inst, 0x224, upper_32_bits(mthd)); | |
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219 | nvkm_done(chan->base.inst); |
220 | return gv100_fifo_gpfifo_engine_valid(chan, true, true); | |
221 | } | |
222 | ||
223 | int | |
224 | gv100_fifo_gpfifo_new(struct gk104_fifo *fifo, const struct nvkm_oclass *oclass, | |
225 | void *data, u32 size, struct nvkm_object **pobject) | |
226 | { | |
227 | struct nvkm_object *parent = oclass->parent; | |
228 | union { | |
9d24907c | 229 | struct volta_channel_gpfifo_a_v0 v0; |
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230 | } *args = data; |
231 | int ret = -ENOSYS; | |
232 | ||
233 | nvif_ioctl(parent, "create channel gpfifo size %d\n", size); | |
234 | if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) { | |
235 | nvif_ioctl(parent, "create channel gpfifo vers %d vmm %llx " | |
236 | "ioffset %016llx ilength %08x " | |
85532bd9 | 237 | "runlist %016llx priv %d\n", |
37e1c45a | 238 | args->v0.version, args->v0.vmm, args->v0.ioffset, |
85532bd9 BS |
239 | args->v0.ilength, args->v0.runlist, args->v0.priv); |
240 | if (args->v0.priv && !oclass->client->super) | |
241 | return -EINVAL; | |
9d24907c | 242 | return gv100_fifo_gpfifo_new_(&gv100_fifo_gpfifo, fifo, |
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243 | &args->v0.runlist, |
244 | &args->v0.chid, | |
245 | args->v0.vmm, | |
246 | args->v0.ioffset, | |
247 | args->v0.ilength, | |
86b442d7 | 248 | &args->v0.inst, |
85532bd9 | 249 | args->v0.priv, |
9d24907c | 250 | &args->v0.token, |
37e1c45a BS |
251 | oclass, pobject); |
252 | } | |
253 | ||
254 | return ret; | |
255 | } |