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 <drm/drm_device.h>
26 #include <drm/drm_pci.h>
27 #include <drm/drm_vblank.h>
28 #include <drm/via_drm.h>
29
30 #include "via_drv.h"
31
via_do_init_map(struct drm_device * dev,drm_via_init_t * init)32 static int via_do_init_map(struct drm_device *dev, drm_via_init_t *init)
33 {
34 drm_via_private_t *dev_priv = dev->dev_private;
35
36 DRM_DEBUG("\n");
37
38 dev_priv->sarea = drm_legacy_getsarea(dev);
39 if (!dev_priv->sarea) {
40 DRM_ERROR("could not find sarea!\n");
41 dev->dev_private = (void *)dev_priv;
42 via_do_cleanup_map(dev);
43 return -EINVAL;
44 }
45
46 dev_priv->fb = drm_legacy_findmap(dev, init->fb_offset);
47 if (!dev_priv->fb) {
48 DRM_ERROR("could not find framebuffer!\n");
49 dev->dev_private = (void *)dev_priv;
50 via_do_cleanup_map(dev);
51 return -EINVAL;
52 }
53 dev_priv->mmio = drm_legacy_findmap(dev, init->mmio_offset);
54 if (!dev_priv->mmio) {
55 DRM_ERROR("could not find mmio region!\n");
56 dev->dev_private = (void *)dev_priv;
57 via_do_cleanup_map(dev);
58 return -EINVAL;
59 }
60
61 dev_priv->sarea_priv =
62 (drm_via_sarea_t *) ((u8 *) dev_priv->sarea->handle +
63 init->sarea_priv_offset);
64
65 dev_priv->agpAddr = init->agpAddr;
66
67 via_init_futex(dev_priv);
68
69 via_init_dmablit(dev);
70
71 dev->dev_private = (void *)dev_priv;
72 return 0;
73 }
74
via_do_cleanup_map(struct drm_device * dev)75 int via_do_cleanup_map(struct drm_device *dev)
76 {
77 via_dma_cleanup(dev);
78
79 return 0;
80 }
81
via_map_init(struct drm_device * dev,void * data,struct drm_file * file_priv)82 int via_map_init(struct drm_device *dev, void *data, struct drm_file *file_priv)
83 {
84 drm_via_init_t *init = data;
85
86 DRM_DEBUG("\n");
87
88 switch (init->func) {
89 case VIA_INIT_MAP:
90 return via_do_init_map(dev, init);
91 case VIA_CLEANUP_MAP:
92 return via_do_cleanup_map(dev);
93 }
94
95 return -EINVAL;
96 }
97
via_driver_load(struct drm_device * dev,unsigned long chipset)98 int via_driver_load(struct drm_device *dev, unsigned long chipset)
99 {
100 drm_via_private_t *dev_priv;
101 int ret = 0;
102
103 dev_priv = kzalloc(sizeof(drm_via_private_t), GFP_KERNEL);
104 if (dev_priv == NULL)
105 return -ENOMEM;
106
107 idr_init(&dev_priv->object_idr);
108 dev->dev_private = (void *)dev_priv;
109
110 dev_priv->chipset = chipset;
111
112 pci_set_master(dev->pdev);
113
114 ret = drm_vblank_init(dev, 1);
115 if (ret) {
116 kfree(dev_priv);
117 return ret;
118 }
119
120 return 0;
121 }
122
via_driver_unload(struct drm_device * dev)123 void via_driver_unload(struct drm_device *dev)
124 {
125 drm_via_private_t *dev_priv = dev->dev_private;
126
127 idr_destroy(&dev_priv->object_idr);
128
129 kfree(dev_priv);
130 }
131
