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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 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 |