xref: /linux/drivers/gpu/drm/nouveau/nvkm/engine/sw/nv10.c (revision b85d45947951d23cb22d90caecf4c1eb81342c96)
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 "priv.h"
25 #include "chan.h"
26 #include "nvsw.h"
27 
28 #include <nvif/ioctl.h>
29 
30 /*******************************************************************************
31  * software context
32  ******************************************************************************/
33 
34 static const struct nvkm_sw_chan_func
35 nv10_sw_chan = {
36 };
37 
38 static int
39 nv10_sw_chan_new(struct nvkm_sw *sw, struct nvkm_fifo_chan *fifo,
40 		 const struct nvkm_oclass *oclass, struct nvkm_object **pobject)
41 {
42 	struct nvkm_sw_chan *chan;
43 
44 	if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL)))
45 		return -ENOMEM;
46 	*pobject = &chan->object;
47 
48 	return nvkm_sw_chan_ctor(&nv10_sw_chan, sw, fifo, oclass, chan);
49 }
50 
51 /*******************************************************************************
52  * software engine/subdev functions
53  ******************************************************************************/
54 
55 static const struct nvkm_sw_func
56 nv10_sw = {
57 	.chan_new = nv10_sw_chan_new,
58 	.sclass = {
59 		{ nvkm_nvsw_new, { -1, -1, NVIF_IOCTL_NEW_V0_SW_NV10 } },
60 		{}
61 	}
62 };
63 
64 int
65 nv10_sw_new(struct nvkm_device *device, int index, struct nvkm_sw **psw)
66 {
67 	return nvkm_sw_new_(&nv10_sw, device, index, psw);
68 }
69