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
|
/*
* Copyright 2007 Nouveau Project
*
* 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, sublicense,
* 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 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 NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS 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.
*/
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include "nouveau_private.h"
int
nouveau_channel_alloc(struct nouveau_device *dev, uint32_t fb_ctxdma,
uint32_t tt_ctxdma, struct nouveau_channel **chan)
{
struct nouveau_device_priv *nvdev = nouveau_device(dev);
struct nouveau_channel_priv *nvchan;
unsigned i;
int ret;
if (!nvdev || !chan || *chan)
return -EINVAL;
nvchan = calloc(1, sizeof(struct nouveau_channel_priv));
if (!nvchan)
return -ENOMEM;
nvchan->base.device = dev;
nvchan->drm.fb_ctxdma_handle = fb_ctxdma;
nvchan->drm.tt_ctxdma_handle = tt_ctxdma;
ret = drmCommandWriteRead(nvdev->fd, DRM_NOUVEAU_CHANNEL_ALLOC,
&nvchan->drm, sizeof(nvchan->drm));
if (ret) {
free(nvchan);
return ret;
}
nvchan->base.id = nvchan->drm.channel;
if (nouveau_grobj_ref(&nvchan->base, nvchan->drm.fb_ctxdma_handle,
&nvchan->base.vram) ||
nouveau_grobj_ref(&nvchan->base, nvchan->drm.tt_ctxdma_handle,
&nvchan->base.gart)) {
nouveau_channel_free((void *)&nvchan);
return -EINVAL;
}
/* Mark all DRM-assigned subchannels as in-use */
for (i = 0; i < nvchan->drm.nr_subchan; i++) {
struct nouveau_grobj_priv *gr = calloc(1, sizeof(*gr));
gr->base.bound = NOUVEAU_GROBJ_BOUND_EXPLICIT;
gr->base.subc = i;
gr->base.handle = nvchan->drm.subchan[i].handle;
gr->base.grclass = nvchan->drm.subchan[i].grclass;
gr->base.channel = &nvchan->base;
nvchan->base.subc[i].gr = &gr->base;
}
ret = drmMap(nvdev->fd, nvchan->drm.notifier, nvchan->drm.notifier_size,
(drmAddressPtr)&nvchan->notifier_block);
if (ret) {
nouveau_channel_free((void *)&nvchan);
return ret;
}
ret = nouveau_grobj_alloc(&nvchan->base, 0x00000000, 0x0030,
&nvchan->base.nullobj);
if (ret) {
nouveau_channel_free((void *)&nvchan);
return ret;
}
if (!nvdev->mm_enabled) {
ret = drmMap(nvdev->fd, nvchan->drm.ctrl, nvchan->drm.ctrl_size,
(void*)&nvchan->user);
if (ret) {
nouveau_channel_free((void *)&nvchan);
return ret;
}
nvchan->put = &nvchan->user[0x40/4];
nvchan->get = &nvchan->user[0x44/4];
nvchan->ref_cnt = &nvchan->user[0x48/4];
ret = drmMap(nvdev->fd, nvchan->drm.cmdbuf,
nvchan->drm.cmdbuf_size, (void*)&nvchan->pushbuf);
if (ret) {
nouveau_channel_free((void *)&nvchan);
return ret;
}
nouveau_dma_channel_init(&nvchan->base);
}
nouveau_pushbuf_init(&nvchan->base);
if (!nvdev->mm_enabled && dev->chipset < 0x10) {
ret = nouveau_grobj_alloc(&nvchan->base, 0xbeef3904, 0x5039,
&nvchan->fence_grobj);
if (ret) {
nouveau_channel_free((void *)&nvchan);
return ret;
}
ret = nouveau_notifier_alloc(&nvchan->base, 0xbeef3905, 1,
&nvchan->fence_ntfy);
if (ret) {
nouveau_channel_free((void *)&nvchan);
return ret;
}
BEGIN_RING(&nvchan->base, nvchan->fence_grobj, 0x0180, 1);
OUT_RING (&nvchan->base, nvchan->fence_ntfy->handle);
nvchan->fence_grobj->bound = NOUVEAU_GROBJ_BOUND_EXPLICIT;
}
*chan = &nvchan->base;
return 0;
}
void
nouveau_channel_free(struct nouveau_channel **chan)
{
struct nouveau_channel_priv *nvchan;
struct nouveau_device_priv *nvdev;
struct drm_nouveau_channel_free cf;
if (!chan || !*chan)
return;
nvchan = nouveau_channel(*chan);
*chan = NULL;
nvdev = nouveau_device(nvchan->base.device);
FIRE_RING(&nvchan->base);
if (!nvdev->mm_enabled) {
struct nouveau_fence *fence = NULL;
/* Make sure all buffer objects on delayed delete queue
* actually get freed.
*/
nouveau_fence_new(&nvchan->base, &fence);
nouveau_fence_emit(fence);
nouveau_fence_wait(&fence);
}
if (nvchan->notifier_block)
drmUnmap(nvchan->notifier_block, nvchan->drm.notifier_size);
nouveau_grobj_free(&nvchan->base.vram);
nouveau_grobj_free(&nvchan->base.gart);
nouveau_grobj_free(&nvchan->base.nullobj);
nouveau_grobj_free(&nvchan->fence_grobj);
nouveau_notifier_free(&nvchan->fence_ntfy);
cf.channel = nvchan->drm.channel;
drmCommandWrite(nvdev->fd, DRM_NOUVEAU_CHANNEL_FREE, &cf, sizeof(cf));
free(nvchan);
}
|
