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 #include "channv50.h"
25
26 #include <core/client.h>
27 #include <core/ramht.h>
28
29 #include <nvif/class.h>
30 #include <nvif/unpack.h>
31
32 static int
nv50_fifo_dma_new(struct nvkm_fifo * base,const struct nvkm_oclass * oclass,void * data,u32 size,struct nvkm_object ** pobject)33 nv50_fifo_dma_new(struct nvkm_fifo *base, const struct nvkm_oclass *oclass,
34 void *data, u32 size, struct nvkm_object **pobject)
35 {
36 struct nvkm_object *parent = oclass->parent;
37 union {
38 struct nv50_channel_dma_v0 v0;
39 } *args = data;
40 struct nv50_fifo *fifo = nv50_fifo(base);
41 struct nv50_fifo_chan *chan;
42 int ret;
43
44 nvif_ioctl(parent, "create channel dma size %d\n", size);
45 if (nvif_unpack(args->v0, 0, 0, false)) {
46 nvif_ioctl(parent, "create channel dma vers %d vm %llx "
47 "pushbuf %llx offset %016llx\n",
48 args->v0.version, args->v0.vm, args->v0.pushbuf,
49 args->v0.offset);
50 if (!args->v0.pushbuf)
51 return -EINVAL;
52 } else
53 return ret;
54
55 if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL)))
56 return -ENOMEM;
57 *pobject = &chan->base.object;
58
59 ret = nv50_fifo_chan_ctor(fifo, args->v0.vm, args->v0.pushbuf,
60 oclass, chan);
61 if (ret)
62 return ret;
63
64 args->v0.chid = chan->base.chid;
65
66 nvkm_kmap(chan->ramfc);
67 nvkm_wo32(chan->ramfc, 0x08, lower_32_bits(args->v0.offset));
68 nvkm_wo32(chan->ramfc, 0x0c, upper_32_bits(args->v0.offset));
69 nvkm_wo32(chan->ramfc, 0x10, lower_32_bits(args->v0.offset));
70 nvkm_wo32(chan->ramfc, 0x14, upper_32_bits(args->v0.offset));
71 nvkm_wo32(chan->ramfc, 0x3c, 0x003f6078);
72 nvkm_wo32(chan->ramfc, 0x44, 0x01003fff);
73 nvkm_wo32(chan->ramfc, 0x48, chan->base.push->node->offset >> 4);
74 nvkm_wo32(chan->ramfc, 0x4c, 0xffffffff);
75 nvkm_wo32(chan->ramfc, 0x60, 0x7fffffff);
76 nvkm_wo32(chan->ramfc, 0x78, 0x00000000);
77 nvkm_wo32(chan->ramfc, 0x7c, 0x30000001);
78 nvkm_wo32(chan->ramfc, 0x80, ((chan->ramht->bits - 9) << 27) |
79 (4 << 24) /* SEARCH_FULL */ |
80 (chan->ramht->gpuobj->node->offset >> 4));
81 nvkm_done(chan->ramfc);
82 return 0;
83 }
84
85 const struct nvkm_fifo_chan_oclass
86 nv50_fifo_dma_oclass = {
87 .base.oclass = NV50_CHANNEL_DMA,
88 .base.minver = 0,
89 .base.maxver = 0,
90 .ctor = nv50_fifo_dma_new,
91 };
92