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 #include "rootnv50.h"
26
27 #include <subdev/timer.h>
28
29 static void
gf119_disp_pioc_fini(struct nv50_disp_chan * chan)30 gf119_disp_pioc_fini(struct nv50_disp_chan *chan)
31 {
32 struct nv50_disp *disp = chan->disp;
33 struct nvkm_subdev *subdev = &disp->base.engine.subdev;
34 struct nvkm_device *device = subdev->device;
35 int ctrl = chan->chid.ctrl;
36 int user = chan->chid.user;
37
38 nvkm_mask(device, 0x610490 + (ctrl * 0x10), 0x00000001, 0x00000000);
39 if (nvkm_msec(device, 2000,
40 if (!(nvkm_rd32(device, 0x610490 + (ctrl * 0x10)) & 0x00030000))
41 break;
42 ) < 0) {
43 nvkm_error(subdev, "ch %d fini: %08x\n", user,
44 nvkm_rd32(device, 0x610490 + (ctrl * 0x10)));
45 }
46 }
47
48 static int
gf119_disp_pioc_init(struct nv50_disp_chan * chan)49 gf119_disp_pioc_init(struct nv50_disp_chan *chan)
50 {
51 struct nv50_disp *disp = chan->disp;
52 struct nvkm_subdev *subdev = &disp->base.engine.subdev;
53 struct nvkm_device *device = subdev->device;
54 int ctrl = chan->chid.ctrl;
55 int user = chan->chid.user;
56
57 /* activate channel */
58 nvkm_wr32(device, 0x610490 + (ctrl * 0x10), 0x00000001);
59 if (nvkm_msec(device, 2000,
60 u32 tmp = nvkm_rd32(device, 0x610490 + (ctrl * 0x10));
61 if ((tmp & 0x00030000) == 0x00010000)
62 break;
63 ) < 0) {
64 nvkm_error(subdev, "ch %d init: %08x\n", user,
65 nvkm_rd32(device, 0x610490 + (ctrl * 0x10)));
66 return -EBUSY;
67 }
68
69 return 0;
70 }
71
72 const struct nv50_disp_chan_func
73 gf119_disp_pioc_func = {
74 .init = gf119_disp_pioc_init,
75 .fini = gf119_disp_pioc_fini,
76 .intr = gf119_disp_chan_intr,
77 .user = nv50_disp_chan_user,
78 };
79