drm: Rework vblank-wait handling to allow interrupt reduction.
[linux-2.6-block.git] / drivers / gpu / drm / i915 / i915_drv.c
CommitLineData
1da177e4
LT
1/* i915_drv.c -- i830,i845,i855,i865,i915 driver -*- linux-c -*-
2 */
0d6aa60b 3/*
bc54fd1a 4 *
1da177e4
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5 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * All Rights Reserved.
bc54fd1a
DA
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the
10 * "Software"), to deal in the Software without restriction, including
11 * without limitation the rights to use, copy, modify, merge, publish,
12 * distribute, sub license, and/or sell copies of the Software, and to
13 * permit persons to whom the Software is furnished to do so, subject to
14 * the following conditions:
15 *
16 * The above copyright notice and this permission notice (including the
17 * next paragraph) shall be included in all copies or substantial portions
18 * of the Software.
19 *
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
21 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
23 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
24 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
25 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
26 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 *
0d6aa60b 28 */
1da177e4
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29
30#include "drmP.h"
31#include "drm.h"
32#include "i915_drm.h"
33#include "i915_drv.h"
34
35#include "drm_pciids.h"
36
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37static struct pci_device_id pciidlist[] = {
38 i915_PCI_IDS
39};
40
b932ccb5 41static int i915_suspend(struct drm_device *dev, pm_message_t state)
ba8bbcf6
JB
42{
43 struct drm_i915_private *dev_priv = dev->dev_private;
ba8bbcf6
JB
44
45 if (!dev || !dev_priv) {
46 printk(KERN_ERR "dev: %p, dev_priv: %p\n", dev, dev_priv);
47 printk(KERN_ERR "DRM not initialized, aborting suspend.\n");
48 return -ENODEV;
49 }
50
b932ccb5
DA
51 if (state.event == PM_EVENT_PRETHAW)
52 return 0;
53
ba8bbcf6 54 pci_save_state(dev->pdev);
ba8bbcf6 55
317c35d1 56 i915_save_state(dev);
ba8bbcf6 57
8ee1c3db
MG
58 intel_opregion_free(dev);
59
b932ccb5
DA
60 if (state.event == PM_EVENT_SUSPEND) {
61 /* Shut down the device */
62 pci_disable_device(dev->pdev);
63 pci_set_power_state(dev->pdev, PCI_D3hot);
64 }
ba8bbcf6
JB
65
66 return 0;
67}
68
69static int i915_resume(struct drm_device *dev)
70{
ba8bbcf6
JB
71 pci_set_power_state(dev->pdev, PCI_D0);
72 pci_restore_state(dev->pdev);
73 if (pci_enable_device(dev->pdev))
74 return -1;
ea7b44c8 75 pci_set_master(dev->pdev);
ba8bbcf6 76
317c35d1 77 i915_restore_state(dev);
ba8bbcf6 78
8ee1c3db
MG
79 intel_opregion_init(dev);
80
ba8bbcf6
JB
81 return 0;
82}
83
1da177e4 84static struct drm_driver driver = {
792d2b9a
DA
85 /* don't use mtrr's here, the Xserver or user space app should
86 * deal with them for intel hardware.
87 */
0a3e67a4
JB
88 .driver_features = DRIVER_USE_AGP | DRIVER_REQUIRE_AGP |
89 DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED,
22eae947 90 .load = i915_driver_load,
ba8bbcf6 91 .unload = i915_driver_unload,
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DA
92 .lastclose = i915_driver_lastclose,
93 .preclose = i915_driver_preclose,
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JB
94 .suspend = i915_suspend,
95 .resume = i915_resume,
cda17380 96 .device_is_agp = i915_driver_device_is_agp,
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JB
97 .get_vblank_counter = i915_get_vblank_counter,
98 .enable_vblank = i915_enable_vblank,
99 .disable_vblank = i915_disable_vblank,
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100 .irq_preinstall = i915_driver_irq_preinstall,
101 .irq_postinstall = i915_driver_irq_postinstall,
102 .irq_uninstall = i915_driver_irq_uninstall,
103 .irq_handler = i915_driver_irq_handler,
104 .reclaim_buffers = drm_core_reclaim_buffers,
105 .get_map_ofs = drm_core_get_map_ofs,
106 .get_reg_ofs = drm_core_get_reg_ofs,
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107 .ioctls = i915_ioctls,
108 .fops = {
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DA
109 .owner = THIS_MODULE,
110 .open = drm_open,
111 .release = drm_release,
112 .ioctl = drm_ioctl,
113 .mmap = drm_mmap,
114 .poll = drm_poll,
115 .fasync = drm_fasync,
8ca7c1df 116#ifdef CONFIG_COMPAT
b5e89ed5 117 .compat_ioctl = i915_compat_ioctl,
8ca7c1df 118#endif
22eae947
DA
119 },
120
1da177e4 121 .pci_driver = {
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122 .name = DRIVER_NAME,
123 .id_table = pciidlist,
124 },
bc5f4523 125
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126 .name = DRIVER_NAME,
127 .desc = DRIVER_DESC,
128 .date = DRIVER_DATE,
129 .major = DRIVER_MAJOR,
130 .minor = DRIVER_MINOR,
131 .patchlevel = DRIVER_PATCHLEVEL,
1da177e4
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132};
133
134static int __init i915_init(void)
135{
136 driver.num_ioctls = i915_max_ioctl;
137 return drm_init(&driver);
138}
139
140static void __exit i915_exit(void)
141{
142 drm_exit(&driver);
143}
144
145module_init(i915_init);
146module_exit(i915_exit);
147
b5e89ed5
DA
148MODULE_AUTHOR(DRIVER_AUTHOR);
149MODULE_DESCRIPTION(DRIVER_DESC);
1da177e4 150MODULE_LICENSE("GPL and additional rights");