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
|
#include <pipe/p_defines.h>
#include <pipe/p_context.h>
#include <pipe/p_screen.h>
#include <util/u_memory.h>
#include "nouveau_context.h"
#include "nouveau_dri.h"
#include "nouveau_local.h"
#include "nouveau_screen.h"
#include "nouveau_winsys_pipe.h"
static void
nouveau_channel_context_destroy(struct nouveau_channel_context *nvc)
{
nouveau_channel_free(&nvc->channel);
FREE(nvc);
}
static struct nouveau_channel_context *
nouveau_channel_context_create(struct nouveau_device *dev)
{
struct nouveau_channel_context *nvc;
int ret;
nvc = CALLOC_STRUCT(nouveau_channel_context);
if (!nvc)
return NULL;
if ((ret = nouveau_channel_alloc(dev, 0x8003d001, 0x8003d002,
&nvc->channel))) {
NOUVEAU_ERR("Error creating GPU channel: %d\n", ret);
nouveau_channel_context_destroy(nvc);
return NULL;
}
nvc->next_handle = 0x77000000;
return nvc;
}
int
nouveau_context_init(struct nouveau_screen *nv_screen,
drm_context_t hHWContext, drmLock *sarea_lock,
struct nouveau_context *nv_share,
struct nouveau_context *nv)
{
struct pipe_context *pipe = NULL;
struct nouveau_channel_context *nvc = NULL;
struct nouveau_device *dev = nv_screen->device;
int i;
switch (dev->chipset & 0xf0) {
case 0x00:
/* NV04 */
case 0x10:
case 0x20:
/* NV10 */
case 0x30:
/* NV30 */
case 0x40:
case 0x60:
/* NV40 */
case 0x50:
case 0x80:
case 0x90:
/* G80 */
break;
default:
NOUVEAU_ERR("Unsupported chipset: NV%02x\n", dev->chipset);
return 1;
}
nv->nv_screen = nv_screen;
{
struct nouveau_device_priv *nvdev = nouveau_device(dev);
nvdev->ctx = hHWContext;
nvdev->lock = sarea_lock;
}
/* Attempt to share a single channel between multiple contexts from
* a single process.
*/
nvc = nv_screen->nvc;
if (!nvc && nv_share)
nvc = nv_share->nvc;
/*XXX: temporary - disable multi-context/single-channel on pre-NV4x */
switch (dev->chipset & 0xf0) {
case 0x40:
case 0x60:
/* NV40 class */
case 0x50:
case 0x80:
case 0x90:
/* G80 class */
break;
default:
nvc = NULL;
break;
}
if (!nvc) {
nvc = nouveau_channel_context_create(dev);
if (!nvc) {
NOUVEAU_ERR("Failed initialising GPU context\n");
return 1;
}
nv_screen->nvc = nvc;
pipe_reference_init(&nvc->reference, 1);
}
pipe_reference((struct pipe_reference**)&nv->nvc, &nvc->reference);
/* Find a free slot for a pipe context, allocate a new one if needed */
nv->pctx_id = -1;
for (i = 0; i < nvc->nr_pctx; i++) {
if (nvc->pctx[i] == NULL) {
nv->pctx_id = i;
break;
}
}
if (nv->pctx_id < 0) {
nv->pctx_id = nvc->nr_pctx++;
nvc->pctx =
realloc(nvc->pctx,
sizeof(struct pipe_context *) * nvc->nr_pctx);
}
/* Create pipe */
if (!getenv("NOUVEAU_FORCE_SOFTPIPE")) {
struct pipe_screen *pscreen;
pipe = nouveau_pipe_create(nv);
if (!pipe) {
NOUVEAU_ERR("Couldn't create hw pipe\n");
return 1;
}
pscreen = nvc->pscreen;
nv->cap.hw_vertex_buffer =
pscreen->get_param(pscreen, NOUVEAU_CAP_HW_VTXBUF);
nv->cap.hw_index_buffer =
pscreen->get_param(pscreen, NOUVEAU_CAP_HW_IDXBUF);
}
if (!pipe) {
NOUVEAU_MSG("Using softpipe\n");
pipe = nouveau_create_softpipe(nv);
if (!pipe) {
NOUVEAU_ERR("Error creating pipe, bailing\n");
return 1;
}
}
{
struct pipe_texture *fb_tex;
struct pipe_surface *fb_surf;
struct nouveau_pipe_buffer *fb_buf;
enum pipe_format format;
fb_buf = calloc(1, sizeof(struct nouveau_pipe_buffer));
pipe_reference_init(&fb_buf->base.reference, 1);
fb_buf->base.usage = PIPE_BUFFER_USAGE_PIXEL;
nouveau_bo_fake(dev, nv_screen->front_offset, NOUVEAU_BO_VRAM,
nv_screen->front_pitch*nv_screen->front_height,
NULL, &fb_buf->bo);
if (nv_screen->front_cpp == 4)
format = PIPE_FORMAT_A8R8G8B8_UNORM;
else
format = PIPE_FORMAT_R5G6B5_UNORM;
fb_surf = nouveau_surface_buffer_ref(nv, &fb_buf->base, format,
nv_screen->front_pitch /
nv_screen->front_cpp,
nv_screen->front_height,
nv_screen->front_pitch,
&fb_tex);
nv->frontbuffer = fb_surf;
nv->frontbuffer_texture = fb_tex;
}
pipe->priv = nv;
return 0;
}
void
nouveau_context_cleanup(struct nouveau_context *nv)
{
struct nouveau_channel_context *nvc = nv->nvc;
assert(nv);
if (nv->pctx_id >= 0) {
nvc->pctx[nv->pctx_id] = NULL;
if (pipe_reference((struct pipe_reference**)&nv->nvc, NULL)) {
nouveau_channel_context_destroy(nvc);
nv->nv_screen->nvc = NULL;
}
}
/* XXX: Who cleans up the pipe? */
}
|
