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6ee73861 | 1 | /* |
77145f1c | 2 | * Copyright 2012 Red Hat Inc. |
6ee73861 | 3 | * |
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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: | |
6ee73861 | 10 | * |
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11 | * The above copyright notice and this permission notice shall be included in |
12 | * all copies or substantial portions of the Software. | |
6ee73861 | 13 | * |
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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. | |
6ee73861 | 21 | * |
77145f1c | 22 | * Authors: Ben Skeggs |
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23 | */ |
24 | ||
77145f1c | 25 | #include <subdev/mc.h> |
6ee73861 | 26 | |
77145f1c | 27 | #include "nouveau_drm.h" |
5b8a43ae | 28 | #include "nouveau_irq.h" |
77145f1c | 29 | #include "nv50_display.h" |
6ee73861 | 30 | |
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31 | void |
32 | nouveau_irq_preinstall(struct drm_device *dev) | |
33 | { | |
77145f1c | 34 | nv_wr32(nouveau_dev(dev), 0x000140, 0x00000000); |
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35 | } |
36 | ||
37 | int | |
38 | nouveau_irq_postinstall(struct drm_device *dev) | |
39 | { | |
77145f1c | 40 | nv_wr32(nouveau_dev(dev), 0x000140, 0x00000001); |
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41 | return 0; |
42 | } | |
43 | ||
44 | void | |
45 | nouveau_irq_uninstall(struct drm_device *dev) | |
46 | { | |
77145f1c | 47 | nv_wr32(nouveau_dev(dev), 0x000140, 0x00000000); |
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48 | } |
49 | ||
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50 | irqreturn_t |
51 | nouveau_irq_handler(DRM_IRQ_ARGS) | |
52 | { | |
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53 | struct drm_device *dev = arg; |
54 | struct nouveau_device *device = nouveau_dev(dev); | |
55 | struct nouveau_mc *pmc = nouveau_mc(device); | |
274fec93 | 56 | u32 stat; |
6ee73861 | 57 | |
77145f1c | 58 | stat = nv_rd32(device, 0x000100); |
9717f3d9 | 59 | if (stat == 0 || stat == ~0) |
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60 | return IRQ_NONE; |
61 | ||
77145f1c | 62 | nv_subdev(pmc)->intr(nv_subdev(pmc)); |
8f8a5448 | 63 | |
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64 | if (dev->mode_config.num_crtc) { |
65 | if (device->card_type >= NV_D0) { | |
66 | if (nv_rd32(device, 0x000100) & 0x04000000) | |
67 | nvd0_display_intr(dev); | |
68 | } else | |
69 | if (device->card_type >= NV_50) { | |
70 | if (nv_rd32(device, 0x000100) & 0x04000000) | |
71 | nv50_display_intr(dev); | |
72 | } | |
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73 | } |
74 | ||
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75 | return IRQ_HANDLED; |
76 | } | |
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77 | |
78 | int | |
79 | nouveau_irq_init(struct drm_device *dev) | |
80 | { | |
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81 | return drm_irq_install(dev); |
82 | } | |
83 | ||
84 | void | |
85 | nouveau_irq_fini(struct drm_device *dev) | |
86 | { | |
35fa2f2a | 87 | drm_irq_uninstall(dev); |
8f8a5448 | 88 | } |