1 /*
2 * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
3 * Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sub license,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the
13 * next paragraph) shall be included in all copies or substantial portions
14 * of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
19 * VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 */
24
25 #include <linux/pci.h>
26
27 #include <drm/drm_device.h>
28 #include <drm/drm_vblank.h>
29 #include <drm/via_drm.h>
30
31 #include "via_drv.h"
32
via_do_init_map(struct drm_device * dev,drm_via_init_t * init)33 static int via_do_init_map(struct drm_device *dev, drm_via_init_t *init)
34 {
35 drm_via_private_t *dev_priv = dev->dev_private;
36
37 DRM_DEBUG("\n");
38
39 dev_priv->sarea = drm_legacy_getsarea(dev);
40 if (!dev_priv->sarea) {
41 DRM_ERROR("could not find sarea!\n");
42 dev->dev_private = (void *)dev_priv;
43 via_do_cleanup_map(dev);
44 return -EINVAL;
45 }
46
47 dev_priv->fb = drm_legacy_findmap(dev, init->fb_offset);
48 if (!dev_priv->fb) {
49 DRM_ERROR("could not find framebuffer!\n");
50 dev->dev_private = (void *)dev_priv;
51 via_do_cleanup_map(dev);
52 return -EINVAL;
53 }
54 dev_priv->mmio = drm_legacy_findmap(dev, init->mmio_offset);
55 if (!dev_priv->mmio) {
56 DRM_ERROR("could not find mmio region!\n");
57 dev->dev_private = (void *)dev_priv;
58 via_do_cleanup_map(dev);
59 return -EINVAL;
60 }
61
62 dev_priv->sarea_priv =
63 (drm_via_sarea_t *) ((u8 *) dev_priv->sarea->handle +
64 init->sarea_priv_offset);
65
66 dev_priv->agpAddr = init->agpAddr;
67
68 via_init_futex(dev_priv);
69
70 via_init_dmablit(dev);
71
72 dev->dev_private = (void *)dev_priv;
73 return 0;
74 }
75
via_do_cleanup_map(struct drm_device * dev)76 int via_do_cleanup_map(struct drm_device *dev)
77 {
78 via_dma_cleanup(dev);
79
80 return 0;
81 }
82
via_map_init(struct drm_device * dev,void * data,struct drm_file * file_priv)83 int via_map_init(struct drm_device *dev, void *data, struct drm_file *file_priv)
84 {
85 drm_via_init_t *init = data;
86
87 DRM_DEBUG("\n");
88
89 switch (init->func) {
90 case VIA_INIT_MAP:
91 return via_do_init_map(dev, init);
92 case VIA_CLEANUP_MAP:
93 return via_do_cleanup_map(dev);
94 }
95
96 return -EINVAL;
97 }
98
via_driver_load(struct drm_device * dev,unsigned long chipset)99 int via_driver_load(struct drm_device *dev, unsigned long chipset)
100 {
101 struct pci_dev *pdev = to_pci_dev(dev->dev);
102 drm_via_private_t *dev_priv;
103 int ret = 0;
104
105 dev_priv = kzalloc(sizeof(drm_via_private_t), GFP_KERNEL);
106 if (dev_priv == NULL)
107 return -ENOMEM;
108
109 idr_init(&dev_priv->object_idr);
110 dev->dev_private = (void *)dev_priv;
111
112 dev_priv->chipset = chipset;
113
114 pci_set_master(pdev);
115
116 ret = drm_vblank_init(dev, 1);
117 if (ret) {
118 kfree(dev_priv);
119 return ret;
120 }
121
122 return 0;
123 }
124
via_driver_unload(struct drm_device * dev)125 void via_driver_unload(struct drm_device *dev)
126 {
127 drm_via_private_t *dev_priv = dev->dev_private;
128
129 idr_destroy(&dev_priv->object_idr);
130
131 kfree(dev_priv);
132 }
133