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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" | |
0ce41e3c | 25 | #include "rootnv50.h" |
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26 | |
27 | #include <subdev/timer.h> | |
28 | ||
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29 | static void |
30 | nv50_disp_pioc_fini(struct nv50_disp_chan *chan) | |
2a7909c0 | 31 | { |
0ce41e3c | 32 | struct nv50_disp *disp = chan->root->disp; |
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33 | struct nvkm_subdev *subdev = &disp->base.engine.subdev; |
34 | struct nvkm_device *device = subdev->device; | |
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35 | int ctrl = chan->chid.ctrl; |
36 | int user = chan->chid.user; | |
2a7909c0 | 37 | |
4391d7f5 | 38 | nvkm_mask(device, 0x610200 + (ctrl * 0x10), 0x00000001, 0x00000000); |
2a7909c0 | 39 | if (nvkm_msec(device, 2000, |
4391d7f5 | 40 | if (!(nvkm_rd32(device, 0x610200 + (ctrl * 0x10)) & 0x00030000)) |
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41 | break; |
42 | ) < 0) { | |
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43 | nvkm_error(subdev, "ch %d timeout: %08x\n", user, |
44 | nvkm_rd32(device, 0x610200 + (ctrl * 0x10))); | |
2a7909c0 | 45 | } |
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46 | } |
47 | ||
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48 | static int |
49 | nv50_disp_pioc_init(struct nv50_disp_chan *chan) | |
2a7909c0 | 50 | { |
0ce41e3c | 51 | struct nv50_disp *disp = chan->root->disp; |
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52 | struct nvkm_subdev *subdev = &disp->base.engine.subdev; |
53 | struct nvkm_device *device = subdev->device; | |
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54 | int ctrl = chan->chid.ctrl; |
55 | int user = chan->chid.user; | |
2a7909c0 | 56 | |
4391d7f5 | 57 | nvkm_wr32(device, 0x610200 + (ctrl * 0x10), 0x00002000); |
2a7909c0 | 58 | if (nvkm_msec(device, 2000, |
4391d7f5 | 59 | if (!(nvkm_rd32(device, 0x610200 + (ctrl * 0x10)) & 0x00030000)) |
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60 | break; |
61 | ) < 0) { | |
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62 | nvkm_error(subdev, "ch %d timeout0: %08x\n", user, |
63 | nvkm_rd32(device, 0x610200 + (ctrl * 0x10))); | |
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64 | return -EBUSY; |
65 | } | |
66 | ||
4391d7f5 | 67 | nvkm_wr32(device, 0x610200 + (ctrl * 0x10), 0x00000001); |
2a7909c0 | 68 | if (nvkm_msec(device, 2000, |
4391d7f5 | 69 | u32 tmp = nvkm_rd32(device, 0x610200 + (ctrl * 0x10)); |
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70 | if ((tmp & 0x00030000) == 0x00010000) |
71 | break; | |
72 | ) < 0) { | |
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73 | nvkm_error(subdev, "ch %d timeout1: %08x\n", user, |
74 | nvkm_rd32(device, 0x610200 + (ctrl * 0x10))); | |
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75 | return -EBUSY; |
76 | } | |
77 | ||
78 | return 0; | |
79 | } | |
80 | ||
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81 | const struct nv50_disp_chan_func |
82 | nv50_disp_pioc_func = { | |
83 | .init = nv50_disp_pioc_init, | |
84 | .fini = nv50_disp_pioc_fini, | |
85 | }; |