1 /*
2 * Copyright 2011 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
25 #include "drmP.h"
26 #include "nouveau_drv.h"
27 #include "nouveau_util.h"
28 #include "nouveau_vm.h"
29 #include "nouveau_ramht.h"
30
31 struct nv98_ppp_engine {
32 struct nouveau_exec_engine base;
33 };
34
35 static int
nv98_ppp_fini(struct drm_device * dev,int engine,bool suspend)36 nv98_ppp_fini(struct drm_device *dev, int engine, bool suspend)
37 {
38 if (!(nv_rd32(dev, 0x000200) & 0x00000002))
39 return 0;
40
41 nv_mask(dev, 0x000200, 0x00000002, 0x00000000);
42 return 0;
43 }
44
45 static int
nv98_ppp_init(struct drm_device * dev,int engine)46 nv98_ppp_init(struct drm_device *dev, int engine)
47 {
48 nv_mask(dev, 0x000200, 0x00000002, 0x00000000);
49 nv_mask(dev, 0x000200, 0x00000002, 0x00000002);
50 return 0;
51 }
52
53 static void
nv98_ppp_destroy(struct drm_device * dev,int engine)54 nv98_ppp_destroy(struct drm_device *dev, int engine)
55 {
56 struct nv98_ppp_engine *pppp = nv_engine(dev, engine);
57
58 NVOBJ_ENGINE_DEL(dev, PPP);
59
60 kfree(pppp);
61 }
62
63 int
nv98_ppp_create(struct drm_device * dev)64 nv98_ppp_create(struct drm_device *dev)
65 {
66 struct nv98_ppp_engine *pppp;
67
68 pppp = kzalloc(sizeof(*pppp), GFP_KERNEL);
69 if (!pppp)
70 return -ENOMEM;
71
72 pppp->base.destroy = nv98_ppp_destroy;
73 pppp->base.init = nv98_ppp_init;
74 pppp->base.fini = nv98_ppp_fini;
75
76 NVOBJ_ENGINE_ADD(dev, PPP, &pppp->base);
77 return 0;
78 }
79