1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
|
/*
* Copyright 2006 Tungsten Graphics Inc., Bismarck, ND., USA.
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sub license,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
/*
* Authors: Thomas Hellström <thomas-at-tungstengraphics-dot-com>
*/
#include "drmP.h"
#include "via_drm.h"
#include "via_drv.h"
#include "drm_sman.h"
#define VIA_MM_ALIGN_SHIFT 4
#define VIA_MM_ALIGN_MASK ( (1 << VIA_MM_ALIGN_SHIFT) - 1)
int via_agp_init(DRM_IOCTL_ARGS)
{
DRM_DEVICE;
drm_via_agp_t agp;
drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
int ret;
DRM_COPY_FROM_USER_IOCTL(agp, (drm_via_agp_t __user *) data,
sizeof(agp));
mutex_lock(&dev->struct_mutex);
ret = drm_sman_set_range(&dev_priv->sman, VIA_MEM_AGP, 0,
agp.size >> VIA_MM_ALIGN_SHIFT);
if (ret) {
DRM_ERROR("AGP memory manager initialisation error\n");
mutex_unlock(&dev->struct_mutex);
return ret;
}
dev_priv->agp_initialized = 1;
dev_priv->agp_offset = agp.offset;
mutex_unlock(&dev->struct_mutex);
DRM_DEBUG("offset = %u, size = %u", agp.offset, agp.size);
return 0;
}
int via_fb_init(DRM_IOCTL_ARGS)
{
DRM_DEVICE;
drm_via_fb_t fb;
drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
int ret;
DRM_COPY_FROM_USER_IOCTL(fb, (drm_via_fb_t __user *) data, sizeof(fb));
mutex_lock(&dev->struct_mutex);
ret = drm_sman_set_range(&dev_priv->sman, VIA_MEM_VIDEO, 0,
fb.size >> VIA_MM_ALIGN_SHIFT);
if (ret) {
DRM_ERROR("VRAM memory manager initialisation error\n");
mutex_unlock(&dev->struct_mutex);
return ret;
}
dev_priv->vram_initialized = 1;
dev_priv->vram_offset = fb.offset;
mutex_unlock(&dev->struct_mutex);
DRM_DEBUG("offset = %u, size = %u", fb.offset, fb.size);
return 0;
}
int via_final_context(struct drm_device *dev, int context)
{
drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
via_release_futex(dev_priv, context);
/* Linux specific until context tracking code gets ported to BSD */
/* Last context, perform cleanup */
if (dev->ctx_count == 1 && dev->dev_private) {
DRM_DEBUG("Last Context\n");
if (dev->irq)
drm_irq_uninstall(dev);
via_cleanup_futex(dev_priv);
via_do_cleanup_map(dev);
}
return 1;
}
void via_lastclose(struct drm_device *dev)
{
drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
if (!dev_priv)
return;
mutex_lock(&dev->struct_mutex);
drm_sman_cleanup(&dev_priv->sman);
dev_priv->vram_initialized = 0;
dev_priv->agp_initialized = 0;
mutex_unlock(&dev->struct_mutex);
}
int via_mem_alloc(DRM_IOCTL_ARGS)
{
DRM_DEVICE;
drm_via_mem_t mem;
int retval = 0;
struct drm_memblock_item *item;
drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
unsigned long tmpSize;
DRM_COPY_FROM_USER_IOCTL(mem, (drm_via_mem_t __user *) data,
sizeof(mem));
if (mem.type > VIA_MEM_AGP) {
DRM_ERROR("Unknown memory type allocation\n");
return -EINVAL;
}
mutex_lock(&dev->struct_mutex);
if (0 == ((mem.type == VIA_MEM_VIDEO) ? dev_priv->vram_initialized :
dev_priv->agp_initialized)) {
DRM_ERROR
("Attempt to allocate from uninitialized memory manager.\n");
mutex_unlock(&dev->struct_mutex);
return -EINVAL;
}
tmpSize = (mem.size + VIA_MM_ALIGN_MASK) >> VIA_MM_ALIGN_SHIFT;
item = drm_sman_alloc(&dev_priv->sman, mem.type, tmpSize, 0,
(unsigned long)file_priv);
mutex_unlock(&dev->struct_mutex);
if (item) {
mem.offset = ((mem.type == VIA_MEM_VIDEO) ?
dev_priv->vram_offset : dev_priv->agp_offset) +
(item->mm->
offset(item->mm, item->mm_info) << VIA_MM_ALIGN_SHIFT);
mem.index = item->user_hash.key;
} else {
mem.offset = 0;
mem.size = 0;
mem.index = 0;
DRM_DEBUG("Video memory allocation failed\n");
retval = -ENOMEM;
}
DRM_COPY_TO_USER_IOCTL((drm_via_mem_t __user *) data, mem, sizeof(mem));
return retval;
}
int via_mem_free(DRM_IOCTL_ARGS)
{
DRM_DEVICE;
drm_via_private_t *dev_priv = dev->dev_private;
drm_via_mem_t mem;
int ret;
DRM_COPY_FROM_USER_IOCTL(mem, (drm_via_mem_t __user *) data,
sizeof(mem));
mutex_lock(&dev->struct_mutex);
ret = drm_sman_free_key(&dev_priv->sman, mem.index);
mutex_unlock(&dev->struct_mutex);
DRM_DEBUG("free = 0x%lx\n", mem.index);
return ret;
}
void via_reclaim_buffers_locked(struct drm_device * dev,
struct drm_file *file_priv)
{
drm_via_private_t *dev_priv = dev->dev_private;
mutex_lock(&dev->struct_mutex);
if (drm_sman_owner_clean(&dev_priv->sman, (unsigned long)file_priv)) {
mutex_unlock(&dev->struct_mutex);
return;
}
if (dev->driver->dma_quiescent) {
dev->driver->dma_quiescent(dev);
}
drm_sman_owner_cleanup(&dev_priv->sman, (unsigned long)file_priv);
mutex_unlock(&dev->struct_mutex);
return;
}
|
