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2004 | serge | 1 | /* |
2 | * Copyright 2008 Advanced Micro Devices, Inc. |
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3 | * Copyright 2008 Red Hat Inc. |
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4 | * Copyright 2009 Jerome Glisse. |
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5 | * |
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6 | * Permission is hereby granted, free of charge, to any person obtaining a |
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7 | * copy of this software and associated documentation files (the "Software"), |
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8 | * to deal in the Software without restriction, including without limitation |
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9 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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10 | * and/or sell copies of the Software, and to permit persons to whom the |
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11 | * Software is furnished to do so, subject to the following conditions: |
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12 | * |
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13 | * The above copyright notice and this permission notice shall be included in |
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14 | * all copies or substantial portions of the Software. |
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15 | * |
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16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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19 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
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20 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
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21 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
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22 | * OTHER DEALINGS IN THE SOFTWARE. |
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23 | * |
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24 | * Authors: Dave Airlie |
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25 | * Alex Deucher |
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26 | * Jerome Glisse |
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27 | */ |
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28 | #include "drmP.h" |
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29 | #include "drm_crtc_helper.h" |
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30 | #include "radeon_drm.h" |
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31 | #include "radeon_reg.h" |
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32 | #include "radeon.h" |
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33 | #include "atom.h" |
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34 | |||
2007 | serge | 35 | struct radeon_device *main_device; |
2004 | serge | 36 | |
2160 | serge | 37 | extern int irq_override; |
2004 | serge | 38 | |
39 | void irq_handler_kms() |
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40 | { |
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2005 | serge | 41 | // dbgprintf("%s\n",__FUNCTION__); |
2004 | serge | 42 | radeon_irq_process(main_device); |
43 | } |
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44 | |||
45 | |||
46 | static void radeon_irq_preinstall(struct radeon_device *rdev) |
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47 | { |
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48 | unsigned i; |
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49 | |||
50 | /* Disable *all* interrupts */ |
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51 | rdev->irq.sw_int = false; |
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52 | rdev->irq.gui_idle = false; |
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53 | for (i = 0; i < rdev->num_crtc; i++) |
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54 | rdev->irq.crtc_vblank_int[i] = false; |
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55 | for (i = 0; i < 6; i++) { |
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56 | rdev->irq.hpd[i] = false; |
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57 | rdev->irq.pflip[i] = false; |
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58 | } |
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59 | radeon_irq_set(rdev); |
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60 | /* Clear bits */ |
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61 | radeon_irq_process(rdev); |
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62 | } |
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63 | |||
64 | int radeon_driver_irq_postinstall(struct radeon_device *rdev) |
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65 | { |
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66 | // struct radeon_device *rdev = dev->dev_private; |
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67 | |||
68 | // dev->max_vblank_count = 0x001fffff; |
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69 | rdev->irq.sw_int = true; |
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70 | radeon_irq_set(rdev); |
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71 | return 0; |
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72 | } |
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73 | |||
74 | int radeon_irq_kms_init(struct radeon_device *rdev) |
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75 | { |
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76 | int i; |
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77 | int irq_line; |
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78 | int r = 0; |
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79 | |||
80 | ENTER(); |
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81 | |||
82 | // INIT_WORK(&rdev->hotplug_work, radeon_hotplug_work_func); |
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83 | |||
84 | spin_lock_init(&rdev->irq.sw_lock); |
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85 | for (i = 0; i < rdev->num_crtc; i++) |
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86 | spin_lock_init(&rdev->irq.pflip_lock[i]); |
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87 | // r = drm_vblank_init(rdev->ddev, rdev->num_crtc); |
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88 | // if (r) { |
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89 | // return r; |
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90 | // } |
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91 | |||
92 | rdev->msi_enabled = 0; |
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93 | rdev->irq.installed = true; |
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94 | main_device = rdev; |
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95 | |||
96 | radeon_irq_preinstall(rdev); |
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97 | |||
2160 | serge | 98 | if (irq_override) |
99 | irq_line = irq_override; |
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100 | else |
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101 | irq_line = rdev->pdev->irq; |
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2004 | serge | 102 | |
103 | dbgprintf("%s install irq %d\n", __FUNCTION__, irq_line); |
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104 | |||
105 | AttachIntHandler(irq_line, irq_handler_kms, 2); |
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106 | |||
107 | // r = drm_irq_install(rdev->ddev); |
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108 | |||
109 | r = radeon_driver_irq_postinstall(rdev); |
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110 | if (r) { |
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111 | rdev->irq.installed = false; |
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112 | LEAVE(); |
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113 | return r; |
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114 | } |
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115 | |||
116 | DRM_INFO("radeon: irq initialized.\n"); |
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117 | return 0; |
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118 | } |
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119 | |||
120 | |||
121 | void radeon_irq_kms_sw_irq_get(struct radeon_device *rdev) |
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122 | { |
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123 | unsigned long irqflags; |
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124 | |||
125 | spin_lock_irqsave(&rdev->irq.sw_lock, irqflags); |
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126 | if (rdev->ddev->irq_enabled && (++rdev->irq.sw_refcount == 1)) { |
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127 | rdev->irq.sw_int = true; |
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128 | radeon_irq_set(rdev); |
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129 | } |
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130 | spin_unlock_irqrestore(&rdev->irq.sw_lock, irqflags); |
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131 | } |
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132 | |||
133 | void radeon_irq_kms_sw_irq_put(struct radeon_device *rdev) |
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134 | { |
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135 | unsigned long irqflags; |
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136 | |||
137 | spin_lock_irqsave(&rdev->irq.sw_lock, irqflags); |
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138 | BUG_ON(rdev->ddev->irq_enabled && rdev->irq.sw_refcount <= 0); |
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139 | if (rdev->ddev->irq_enabled && (--rdev->irq.sw_refcount == 0)) { |
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140 | rdev->irq.sw_int = false; |
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141 | radeon_irq_set(rdev); |
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142 | } |
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143 | spin_unlock_irqrestore(&rdev->irq.sw_lock, irqflags); |
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144 | }=>>>> |
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145 |