These changes are the raw update to linux-4.4.6-rt14. Kernel sources
[kvmfornfv.git] / kernel / drivers / gpu / drm / nouveau / nvkm / engine / fifo / dmanv50.c
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
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 };