573220cc5269fe48d6f0a5fb972c33c5731bb1af
[linux-2.6.git] / drivers / gpu / drm / sis / sis_drv.c
1 /* sis.c -- sis driver -*- linux-c -*-
2  *
3  * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
4  * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
5  * All Rights Reserved.
6  *
7  * Permission is hereby granted, free of charge, to any person obtaining a
8  * copy of this software and associated documentation files (the "Software"),
9  * to deal in the Software without restriction, including without limitation
10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11  * and/or sell copies of the Software, and to permit persons to whom the
12  * Software is furnished to do so, subject to the following conditions:
13  *
14  * The above copyright notice and this permission notice (including the next
15  * paragraph) shall be included in all copies or substantial portions of the
16  * Software.
17  *
18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
21  * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
22  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
23  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
24  * DEALINGS IN THE SOFTWARE.
25  *
26  */
27
28 #include <linux/module.h>
29
30 #include "drmP.h"
31 #include "sis_drm.h"
32 #include "sis_drv.h"
33
34 #include "drm_pciids.h"
35
36 static struct pci_device_id pciidlist[] = {
37         sisdrv_PCI_IDS
38 };
39
40 static int sis_driver_load(struct drm_device *dev, unsigned long chipset)
41 {
42         drm_sis_private_t *dev_priv;
43
44         dev_priv = kzalloc(sizeof(drm_sis_private_t), GFP_KERNEL);
45         if (dev_priv == NULL)
46                 return -ENOMEM;
47
48         dev->dev_private = (void *)dev_priv;
49         dev_priv->chipset = chipset;
50         idr_init(&dev->object_name_idr);
51
52         return 0;
53 }
54
55 static int sis_driver_unload(struct drm_device *dev)
56 {
57         drm_sis_private_t *dev_priv = dev->dev_private;
58
59         idr_remove_all(&dev_priv->object_idr);
60         idr_destroy(&dev_priv->object_idr);
61
62         kfree(dev_priv);
63
64         return 0;
65 }
66
67 static const struct file_operations sis_driver_fops = {
68         .owner = THIS_MODULE,
69         .open = drm_open,
70         .release = drm_release,
71         .unlocked_ioctl = drm_ioctl,
72         .mmap = drm_mmap,
73         .poll = drm_poll,
74         .fasync = drm_fasync,
75         .llseek = noop_llseek,
76 };
77
78 static int sis_driver_open(struct drm_device *dev, struct drm_file *file)
79 {
80         struct sis_file_private *file_priv;
81
82         DRM_DEBUG_DRIVER("\n");
83         file_priv = kmalloc(sizeof(*file_priv), GFP_KERNEL);
84         if (!file_priv)
85                 return -ENOMEM;
86
87         file->driver_priv = file_priv;
88
89         INIT_LIST_HEAD(&file_priv->obj_list);
90
91         return 0;
92 }
93
94 void sis_driver_postclose(struct drm_device *dev, struct drm_file *file)
95 {
96         struct sis_file_private *file_priv = file->driver_priv;
97
98         kfree(file_priv);
99 }
100
101 static struct drm_driver driver = {
102         .driver_features = DRIVER_USE_AGP | DRIVER_USE_MTRR,
103         .load = sis_driver_load,
104         .unload = sis_driver_unload,
105         .open = sis_driver_open,
106         .postclose = sis_driver_postclose,
107         .dma_quiescent = sis_idle,
108         .reclaim_buffers = NULL,
109         .reclaim_buffers_idlelocked = sis_reclaim_buffers_locked,
110         .lastclose = sis_lastclose,
111         .ioctls = sis_ioctls,
112         .fops = &sis_driver_fops,
113         .name = DRIVER_NAME,
114         .desc = DRIVER_DESC,
115         .date = DRIVER_DATE,
116         .major = DRIVER_MAJOR,
117         .minor = DRIVER_MINOR,
118         .patchlevel = DRIVER_PATCHLEVEL,
119 };
120
121 static struct pci_driver sis_pci_driver = {
122         .name = DRIVER_NAME,
123         .id_table = pciidlist,
124 };
125
126 static int __init sis_init(void)
127 {
128         driver.num_ioctls = sis_max_ioctl;
129         return drm_pci_init(&driver, &sis_pci_driver);
130 }
131
132 static void __exit sis_exit(void)
133 {
134         drm_pci_exit(&driver, &sis_pci_driver);
135 }
136
137 module_init(sis_init);
138 module_exit(sis_exit);
139
140 MODULE_AUTHOR(DRIVER_AUTHOR);
141 MODULE_DESCRIPTION(DRIVER_DESC);
142 MODULE_LICENSE("GPL and additional rights");