Commit | Line | Data |
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317c35d1 JB |
1 | /* |
2 | * | |
3 | * Copyright 2008 (c) Intel Corporation | |
4 | * Jesse Barnes <jbarnes@virtuousgeek.org> | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a | |
7 | * copy of this software and associated documentation files (the | |
8 | * "Software"), to deal in the Software without restriction, including | |
9 | * without limitation the rights to use, copy, modify, merge, publish, | |
10 | * distribute, sub license, and/or sell copies of the Software, and to | |
11 | * permit persons to whom the Software is furnished to do so, subject to | |
12 | * the following conditions: | |
13 | * | |
14 | * The above copyright notice and this permission notice (including the | |
15 | * next paragraph) shall be included in all copies or substantial portions | |
16 | * of the Software. | |
17 | * | |
18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS | |
19 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
20 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. | |
21 | * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR | |
22 | * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, | |
23 | * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE | |
24 | * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |
25 | */ | |
26 | ||
77895af2 | 27 | #include "display/intel_de.h" |
379bc100 | 28 | #include "display/intel_gmbus.h" |
4fb87831 | 29 | #include "display/intel_vga.h" |
379bc100 | 30 | |
6da4a2c4 | 31 | #include "i915_drv.h" |
5e5b7fa2 | 32 | #include "i915_reg.h" |
bdd1510c | 33 | #include "i915_suspend.h" |
7e470f10 | 34 | #include "intel_pci_config.h" |
317c35d1 | 35 | |
0f8d2a2b | 36 | static void intel_save_swf(struct drm_i915_private *dev_priv) |
1341d655 | 37 | { |
1341d655 BG |
38 | int i; |
39 | ||
1341d655 | 40 | /* Scratch space */ |
651e7d48 | 41 | if (GRAPHICS_VER(dev_priv) == 2 && IS_MOBILE(dev_priv)) { |
85fa792b | 42 | for (i = 0; i < 7; i++) { |
77895af2 JN |
43 | dev_priv->regfile.saveSWF0[i] = intel_de_read(dev_priv, SWF0(i)); |
44 | dev_priv->regfile.saveSWF1[i] = intel_de_read(dev_priv, SWF1(i)); | |
85fa792b VS |
45 | } |
46 | for (i = 0; i < 3; i++) | |
77895af2 | 47 | dev_priv->regfile.saveSWF3[i] = intel_de_read(dev_priv, SWF3(i)); |
651e7d48 | 48 | } else if (GRAPHICS_VER(dev_priv) == 2) { |
85fa792b | 49 | for (i = 0; i < 7; i++) |
77895af2 | 50 | dev_priv->regfile.saveSWF1[i] = intel_de_read(dev_priv, SWF1(i)); |
b2ae318a | 51 | } else if (HAS_GMCH(dev_priv)) { |
85fa792b | 52 | for (i = 0; i < 16; i++) { |
77895af2 JN |
53 | dev_priv->regfile.saveSWF0[i] = intel_de_read(dev_priv, SWF0(i)); |
54 | dev_priv->regfile.saveSWF1[i] = intel_de_read(dev_priv, SWF1(i)); | |
85fa792b VS |
55 | } |
56 | for (i = 0; i < 3; i++) | |
77895af2 | 57 | dev_priv->regfile.saveSWF3[i] = intel_de_read(dev_priv, SWF3(i)); |
1341d655 | 58 | } |
1341d655 BG |
59 | } |
60 | ||
0f8d2a2b | 61 | static void intel_restore_swf(struct drm_i915_private *dev_priv) |
1341d655 | 62 | { |
1341d655 BG |
63 | int i; |
64 | ||
85fa792b | 65 | /* Scratch space */ |
651e7d48 | 66 | if (GRAPHICS_VER(dev_priv) == 2 && IS_MOBILE(dev_priv)) { |
85fa792b | 67 | for (i = 0; i < 7; i++) { |
77895af2 JN |
68 | intel_de_write(dev_priv, SWF0(i), dev_priv->regfile.saveSWF0[i]); |
69 | intel_de_write(dev_priv, SWF1(i), dev_priv->regfile.saveSWF1[i]); | |
85fa792b VS |
70 | } |
71 | for (i = 0; i < 3; i++) | |
77895af2 | 72 | intel_de_write(dev_priv, SWF3(i), dev_priv->regfile.saveSWF3[i]); |
651e7d48 | 73 | } else if (GRAPHICS_VER(dev_priv) == 2) { |
85fa792b | 74 | for (i = 0; i < 7; i++) |
77895af2 | 75 | intel_de_write(dev_priv, SWF1(i), dev_priv->regfile.saveSWF1[i]); |
b2ae318a | 76 | } else if (HAS_GMCH(dev_priv)) { |
85fa792b | 77 | for (i = 0; i < 16; i++) { |
77895af2 JN |
78 | intel_de_write(dev_priv, SWF0(i), dev_priv->regfile.saveSWF0[i]); |
79 | intel_de_write(dev_priv, SWF1(i), dev_priv->regfile.saveSWF1[i]); | |
85fa792b VS |
80 | } |
81 | for (i = 0; i < 3; i++) | |
77895af2 | 82 | intel_de_write(dev_priv, SWF3(i), dev_priv->regfile.saveSWF3[i]); |
317c35d1 | 83 | } |
0f8d2a2b VS |
84 | } |
85 | ||
86 | void i915_save_display(struct drm_i915_private *dev_priv) | |
87 | { | |
8ff5446a | 88 | struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev); |
0f8d2a2b | 89 | |
5df7bd13 JRS |
90 | if (!HAS_DISPLAY(dev_priv)) |
91 | return; | |
92 | ||
0f8d2a2b | 93 | /* Display arbitration control */ |
651e7d48 | 94 | if (GRAPHICS_VER(dev_priv) <= 4) |
77895af2 | 95 | dev_priv->regfile.saveDSPARB = intel_de_read(dev_priv, DSPARB); |
317c35d1 | 96 | |
651e7d48 | 97 | if (GRAPHICS_VER(dev_priv) == 4) |
0f8d2a2b VS |
98 | pci_read_config_word(pdev, GCDGMBUS, |
99 | &dev_priv->regfile.saveGCDGMBUS); | |
100 | ||
101 | intel_save_swf(dev_priv); | |
102 | } | |
103 | ||
104 | void i915_restore_display(struct drm_i915_private *dev_priv) | |
105 | { | |
8ff5446a | 106 | struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev); |
0f8d2a2b | 107 | |
5df7bd13 JRS |
108 | if (!HAS_DISPLAY(dev_priv)) |
109 | return; | |
110 | ||
0f8d2a2b VS |
111 | intel_restore_swf(dev_priv); |
112 | ||
651e7d48 | 113 | if (GRAPHICS_VER(dev_priv) == 4) |
0f8d2a2b VS |
114 | pci_write_config_word(pdev, GCDGMBUS, |
115 | dev_priv->regfile.saveGCDGMBUS); | |
116 | ||
117 | /* Display arbitration */ | |
651e7d48 | 118 | if (GRAPHICS_VER(dev_priv) <= 4) |
77895af2 | 119 | intel_de_write(dev_priv, DSPARB, dev_priv->regfile.saveDSPARB); |
0f8d2a2b | 120 | |
0f8d2a2b VS |
121 | intel_vga_redisable(dev_priv); |
122 | ||
123 | intel_gmbus_reset(dev_priv); | |
317c35d1 | 124 | } |