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/ramht.h>
27 #include <subdev/timer.h>
28
29 int
gf119_disp_dmac_bind(struct nv50_disp_chan * chan,struct nvkm_object * object,u32 handle)30 gf119_disp_dmac_bind(struct nv50_disp_chan *chan,
31 struct nvkm_object *object, u32 handle)
32 {
33 return nvkm_ramht_insert(chan->disp->ramht, object,
34 chan->chid.user, -9, handle,
35 chan->chid.user << 27 | 0x00000001);
36 }
37
38 void
gf119_disp_dmac_fini(struct nv50_disp_chan * chan)39 gf119_disp_dmac_fini(struct nv50_disp_chan *chan)
40 {
41 struct nvkm_subdev *subdev = &chan->disp->base.engine.subdev;
42 struct nvkm_device *device = subdev->device;
43 int ctrl = chan->chid.ctrl;
44 int user = chan->chid.user;
45
46 /* deactivate channel */
47 nvkm_mask(device, 0x610490 + (ctrl * 0x0010), 0x00001010, 0x00001000);
48 nvkm_mask(device, 0x610490 + (ctrl * 0x0010), 0x00000003, 0x00000000);
49 if (nvkm_msec(device, 2000,
50 if (!(nvkm_rd32(device, 0x610490 + (ctrl * 0x10)) & 0x001e0000))
51 break;
52 ) < 0) {
53 nvkm_error(subdev, "ch %d fini: %08x\n", user,
54 nvkm_rd32(device, 0x610490 + (ctrl * 0x10)));
55 }
56 }
57
58 static int
gf119_disp_dmac_init(struct nv50_disp_chan * chan)59 gf119_disp_dmac_init(struct nv50_disp_chan *chan)
60 {
61 struct nvkm_subdev *subdev = &chan->disp->base.engine.subdev;
62 struct nvkm_device *device = subdev->device;
63 int ctrl = chan->chid.ctrl;
64 int user = chan->chid.user;
65
66 /* initialise channel for dma command submission */
67 nvkm_wr32(device, 0x610494 + (ctrl * 0x0010), chan->push);
68 nvkm_wr32(device, 0x610498 + (ctrl * 0x0010), 0x00010000);
69 nvkm_wr32(device, 0x61049c + (ctrl * 0x0010), 0x00000001);
70 nvkm_mask(device, 0x610490 + (ctrl * 0x0010), 0x00000010, 0x00000010);
71 nvkm_wr32(device, 0x640000 + (ctrl * 0x1000), 0x00000000);
72 nvkm_wr32(device, 0x610490 + (ctrl * 0x0010), 0x00000013);
73
74 /* wait for it to go inactive */
75 if (nvkm_msec(device, 2000,
76 if (!(nvkm_rd32(device, 0x610490 + (ctrl * 0x10)) & 0x80000000))
77 break;
78 ) < 0) {
79 nvkm_error(subdev, "ch %d init: %08x\n", user,
80 nvkm_rd32(device, 0x610490 + (ctrl * 0x10)));
81 return -EBUSY;
82 }
83
84 return 0;
85 }
86
87 const struct nv50_disp_chan_func
88 gf119_disp_dmac_func = {
89 .init = gf119_disp_dmac_init,
90 .fini = gf119_disp_dmac_fini,
91 .intr = gf119_disp_chan_intr,
92 .user = nv50_disp_chan_user,
93 .bind = gf119_disp_dmac_bind,
94 };
95
