1 /* $NetBSD: via_drv.c,v 1.9 2021/12/19 12:30:23 riastradh Exp $ */
2
3 /*
4 * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
5 * Copyright 2001-2003 S3 Graphics, Inc. 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, sub license,
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
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 OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
21 * VIA, S3 GRAPHICS, 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 #include <sys/cdefs.h>
28 __KERNEL_RCSID(0, "$NetBSD: via_drv.c,v 1.9 2021/12/19 12:30:23 riastradh Exp $");
29
30 #include <linux/module.h>
31 #include <linux/pci.h>
32
33 #include <drm/drm_drv.h>
34 #include <drm/drm_file.h>
35 #include <drm/drm_pci.h>
36 #include <drm/drm_pciids.h>
37 #include <drm/via_drm.h>
38
39 #include "via_drv.h"
40
41
via_driver_open(struct drm_device * dev,struct drm_file * file)42 static int via_driver_open(struct drm_device *dev, struct drm_file *file)
43 {
44 struct via_file_private *file_priv;
45
46 DRM_DEBUG_DRIVER("\n");
47 file_priv = kmalloc(sizeof(*file_priv), GFP_KERNEL);
48 if (!file_priv)
49 return -ENOMEM;
50
51 file->driver_priv = file_priv;
52
53 INIT_LIST_HEAD(&file_priv->obj_list);
54
55 return 0;
56 }
57
via_driver_postclose(struct drm_device * dev,struct drm_file * file)58 static void via_driver_postclose(struct drm_device *dev, struct drm_file *file)
59 {
60 struct via_file_private *file_priv = file->driver_priv;
61
62 kfree(file_priv);
63 }
64
65 #ifndef __NetBSD__
66 static struct pci_device_id pciidlist[] = {
67 viadrv_PCI_IDS
68 };
69
70 static const struct file_operations via_driver_fops = {
71 .owner = THIS_MODULE,
72 .open = drm_open,
73 .release = drm_release,
74 .unlocked_ioctl = drm_ioctl,
75 .mmap = drm_legacy_mmap,
76 .poll = drm_poll,
77 .compat_ioctl = drm_compat_ioctl,
78 .llseek = noop_llseek,
79 };
80 #endif
81
82 static struct drm_driver driver = {
83 .driver_features =
84 DRIVER_USE_AGP | DRIVER_HAVE_IRQ | DRIVER_LEGACY,
85 .load = via_driver_load,
86 .unload = via_driver_unload,
87 .open = via_driver_open,
88 .preclose = via_reclaim_buffers_locked,
89 .postclose = via_driver_postclose,
90 .context_dtor = via_final_context,
91 .get_vblank_counter = via_get_vblank_counter,
92 .enable_vblank = via_enable_vblank,
93 .disable_vblank = via_disable_vblank,
94 .irq_preinstall = via_driver_irq_preinstall,
95 .irq_postinstall = via_driver_irq_postinstall,
96 .irq_uninstall = via_driver_irq_uninstall,
97 .irq_handler = via_driver_irq_handler,
98 #ifdef __NetBSD__
99 .request_irq = drm_pci_request_irq,
100 .free_irq = drm_pci_free_irq,
101 #endif
102 .dma_quiescent = via_driver_dma_quiescent,
103 .lastclose = via_lastclose,
104 .ioctls = via_ioctls,
105 #ifndef __NetBSD__
106 .fops = &via_driver_fops,
107 #else
108 .mmap_object = drm_legacy_mmap_object,
109 #endif
110 .name = DRIVER_NAME,
111 .desc = DRIVER_DESC,
112 .date = DRIVER_DATE,
113 .major = DRIVER_MAJOR,
114 .minor = DRIVER_MINOR,
115 .patchlevel = DRIVER_PATCHLEVEL,
116 };
117
118 #ifdef __NetBSD__
119 struct drm_driver *const via_drm_driver = &driver;
120 #endif
121
122 #ifndef __NetBSD__
123 static struct pci_driver via_pci_driver = {
124 .name = DRIVER_NAME,
125 .id_table = viadrm_pciidlist,
126 };
127
via_init(void)128 static int __init via_init(void)
129 {
130 driver.num_ioctls = via_max_ioctl;
131 via_init_command_verifier();
132 return drm_legacy_pci_init(&driver, &via_pci_driver);
133 }
134
via_exit(void)135 static void __exit via_exit(void)
136 {
137 drm_legacy_pci_exit(&driver, &via_pci_driver);
138 }
139 #endif /* __NetBSD__ */
140
141 module_init(via_init);
142 module_exit(via_exit);
143
144 MODULE_AUTHOR(DRIVER_AUTHOR);
145 MODULE_DESCRIPTION(DRIVER_DESC);
146 MODULE_LICENSE("GPL and additional rights");
147