1 /* $NetBSD: nouveau_nvkm_engine_disp_piocgf119.c,v 1.3 2021/12/18 23:45:35 riastradh Exp $ */
2
3 /*
4 * Copyright 2012 Red Hat Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 *
24 * Authors: Ben Skeggs
25 */
26 #include <sys/cdefs.h>
27 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_engine_disp_piocgf119.c,v 1.3 2021/12/18 23:45:35 riastradh Exp $");
28
29 #include "channv50.h"
30 #include "rootnv50.h"
31
32 #include <subdev/timer.h>
33
34 static void
gf119_disp_pioc_fini(struct nv50_disp_chan * chan)35 gf119_disp_pioc_fini(struct nv50_disp_chan *chan)
36 {
37 struct nv50_disp *disp = chan->disp;
38 struct nvkm_subdev *subdev = &disp->base.engine.subdev;
39 struct nvkm_device *device = subdev->device;
40 int ctrl = chan->chid.ctrl;
41 int user = chan->chid.user;
42
43 nvkm_mask(device, 0x610490 + (ctrl * 0x10), 0x00000001, 0x00000000);
44 if (nvkm_msec(device, 2000,
45 if (!(nvkm_rd32(device, 0x610490 + (ctrl * 0x10)) & 0x00030000))
46 break;
47 ) < 0) {
48 nvkm_error(subdev, "ch %d fini: %08x\n", user,
49 nvkm_rd32(device, 0x610490 + (ctrl * 0x10)));
50 }
51 }
52
53 static int
gf119_disp_pioc_init(struct nv50_disp_chan * chan)54 gf119_disp_pioc_init(struct nv50_disp_chan *chan)
55 {
56 struct nv50_disp *disp = chan->disp;
57 struct nvkm_subdev *subdev = &disp->base.engine.subdev;
58 struct nvkm_device *device = subdev->device;
59 int ctrl = chan->chid.ctrl;
60 int user = chan->chid.user;
61
62 /* activate channel */
63 nvkm_wr32(device, 0x610490 + (ctrl * 0x10), 0x00000001);
64 if (nvkm_msec(device, 2000,
65 u32 tmp = nvkm_rd32(device, 0x610490 + (ctrl * 0x10));
66 if ((tmp & 0x00030000) == 0x00010000)
67 break;
68 ) < 0) {
69 nvkm_error(subdev, "ch %d init: %08x\n", user,
70 nvkm_rd32(device, 0x610490 + (ctrl * 0x10)));
71 return -EBUSY;
72 }
73
74 return 0;
75 }
76
77 const struct nv50_disp_chan_func
78 gf119_disp_pioc_func = {
79 .init = gf119_disp_pioc_init,
80 .fini = gf119_disp_pioc_fini,
81 .intr = gf119_disp_chan_intr,
82 .user = nv50_disp_chan_user,
83 };
84