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
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
|
#include <pipe/p_defines.h>
#include <pipe/p_screen.h>
#include <pipe/p_state.h>
#include <util/u_memory.h>
#include <util/u_inlines.h>
#include <stdio.h>
#include <errno.h>
#include "nouveau/nouveau_bo.h"
#include "nouveau_winsys.h"
#include "nouveau_screen.h"
static const char *
nouveau_screen_get_name(struct pipe_screen *pscreen)
{
struct nouveau_device *dev = nouveau_screen(pscreen)->device;
static char buffer[128];
snprintf(buffer, sizeof(buffer), "NV%02X", dev->chipset);
return buffer;
}
static const char *
nouveau_screen_get_vendor(struct pipe_screen *pscreen)
{
return "nouveau";
}
static struct pipe_buffer *
nouveau_screen_bo_skel(struct pipe_screen *pscreen, struct nouveau_bo *bo,
unsigned alignment, unsigned usage, unsigned size)
{
struct pipe_buffer *pb;
pb = CALLOC(1, sizeof(struct pipe_buffer)+sizeof(struct nouveau_bo *));
if (!pb) {
nouveau_bo_ref(NULL, &bo);
return NULL;
}
pipe_reference_init(&pb->reference, 1);
pb->screen = pscreen;
pb->alignment = alignment;
pb->usage = usage;
pb->size = size;
*(struct nouveau_bo **)(pb + 1) = bo;
return pb;
}
static struct pipe_buffer *
nouveau_screen_bo_new(struct pipe_screen *pscreen, unsigned alignment,
unsigned usage, unsigned size)
{
struct nouveau_device *dev = nouveau_screen(pscreen)->device;
struct nouveau_bo *bo = NULL;
uint32_t flags = NOUVEAU_BO_MAP, tile_mode = 0, tile_flags = 0;
int ret;
if (usage & NOUVEAU_BUFFER_USAGE_TRANSFER)
flags |= NOUVEAU_BO_GART;
else
if (usage & PIPE_BUFFER_USAGE_VERTEX) {
if (pscreen->get_param(pscreen, NOUVEAU_CAP_HW_VTXBUF))
flags |= NOUVEAU_BO_GART;
} else
if (usage & PIPE_BUFFER_USAGE_INDEX) {
if (pscreen->get_param(pscreen, NOUVEAU_CAP_HW_IDXBUF))
flags |= NOUVEAU_BO_GART;
}
if (usage & PIPE_BUFFER_USAGE_PIXEL) {
if (usage & NOUVEAU_BUFFER_USAGE_TEXTURE)
flags |= NOUVEAU_BO_GART;
if (!(usage & PIPE_BUFFER_USAGE_CPU_READ_WRITE))
flags |= NOUVEAU_BO_VRAM;
if (dev->chipset == 0x50 || dev->chipset >= 0x80) {
if (usage & NOUVEAU_BUFFER_USAGE_ZETA)
tile_flags = 0x2800;
else
tile_flags = 0x7000;
}
}
ret = nouveau_bo_new_tile(dev, flags, alignment, size,
tile_mode, tile_flags, &bo);
if (ret)
return NULL;
return nouveau_screen_bo_skel(pscreen, bo, alignment, usage, size);
}
static struct pipe_buffer *
nouveau_screen_bo_user(struct pipe_screen *pscreen, void *ptr, unsigned bytes)
{
struct nouveau_device *dev = nouveau_screen(pscreen)->device;
struct nouveau_bo *bo = NULL;
int ret;
ret = nouveau_bo_user(dev, ptr, bytes, &bo);
if (ret)
return NULL;
return nouveau_screen_bo_skel(pscreen, bo, 0, 0, bytes);
}
static inline uint32_t
nouveau_screen_map_flags(unsigned pipe)
{
uint32_t flags = 0;
if (pipe & PIPE_BUFFER_USAGE_CPU_READ)
flags |= NOUVEAU_BO_RD;
if (pipe & PIPE_BUFFER_USAGE_CPU_WRITE)
flags |= NOUVEAU_BO_WR;
if (pipe & PIPE_BUFFER_USAGE_DISCARD)
flags |= NOUVEAU_BO_INVAL;
if (pipe & PIPE_BUFFER_USAGE_DONTBLOCK)
flags |= NOUVEAU_BO_NOWAIT;
else
if (pipe & 0 /*PIPE_BUFFER_USAGE_UNSYNCHRONIZED*/)
flags |= NOUVEAU_BO_NOSYNC;
return flags;
}
static void *
nouveau_screen_bo_map(struct pipe_screen *pscreen, struct pipe_buffer *pb,
unsigned usage)
{
struct nouveau_bo *bo = nouveau_bo(pb);
struct nouveau_screen *nscreen = nouveau_screen(pscreen);
int ret;
if (nscreen->pre_pipebuffer_map_callback) {
ret = nscreen->pre_pipebuffer_map_callback(pscreen, pb, usage);
if (ret) {
debug_printf("pre_pipebuffer_map_callback failed %d\n",
ret);
return NULL;
}
}
ret = nouveau_bo_map(bo, nouveau_screen_map_flags(usage));
if (ret) {
debug_printf("map failed: %d\n", ret);
return NULL;
}
return bo->map;
}
static void *
nouveau_screen_bo_map_range(struct pipe_screen *pscreen, struct pipe_buffer *pb,
unsigned offset, unsigned length, unsigned usage)
{
struct nouveau_bo *bo = nouveau_bo(pb);
struct nouveau_screen *nscreen = nouveau_screen(pscreen);
uint32_t flags = nouveau_screen_map_flags(usage);
int ret;
if (nscreen->pre_pipebuffer_map_callback) {
ret = nscreen->pre_pipebuffer_map_callback(pscreen, pb, usage);
if (ret) {
debug_printf("pre_pipebuffer_map_callback failed %d\n",
ret);
return NULL;
}
}
ret = nouveau_bo_map_range(bo, offset, length, flags);
if (ret) {
nouveau_bo_unmap(bo);
if (!(flags & NOUVEAU_BO_NOWAIT) || ret != -EBUSY)
debug_printf("map_range failed: %d\n", ret);
return NULL;
}
return (char *)bo->map - offset; /* why gallium? why? */
}
static void
nouveau_screen_bo_map_flush(struct pipe_screen *pscreen, struct pipe_buffer *pb,
unsigned offset, unsigned length)
{
struct nouveau_bo *bo = nouveau_bo(pb);
nouveau_bo_map_flush(bo, offset, length);
}
static void
nouveau_screen_bo_unmap(struct pipe_screen *pscreen, struct pipe_buffer *pb)
{
struct nouveau_bo *bo = nouveau_bo(pb);
nouveau_bo_unmap(bo);
}
static void
nouveau_screen_bo_del(struct pipe_buffer *pb)
{
struct nouveau_bo *bo = nouveau_bo(pb);
nouveau_bo_ref(NULL, &bo);
FREE(pb);
}
static void
nouveau_screen_fence_ref(struct pipe_screen *pscreen,
struct pipe_fence_handle **ptr,
struct pipe_fence_handle *pfence)
{
*ptr = pfence;
}
static int
nouveau_screen_fence_signalled(struct pipe_screen *screen,
struct pipe_fence_handle *pfence,
unsigned flags)
{
return 0;
}
static int
nouveau_screen_fence_finish(struct pipe_screen *screen,
struct pipe_fence_handle *pfence,
unsigned flags)
{
return 0;
}
int
nouveau_screen_init(struct nouveau_screen *screen, struct nouveau_device *dev)
{
struct pipe_screen *pscreen = &screen->base;
int ret;
ret = nouveau_channel_alloc(dev, 0xbeef0201, 0xbeef0202,
&screen->channel);
if (ret)
return ret;
screen->device = dev;
pscreen->get_name = nouveau_screen_get_name;
pscreen->get_vendor = nouveau_screen_get_vendor;
pscreen->buffer_create = nouveau_screen_bo_new;
pscreen->user_buffer_create = nouveau_screen_bo_user;
pscreen->buffer_map = nouveau_screen_bo_map;
pscreen->buffer_map_range = nouveau_screen_bo_map_range;
pscreen->buffer_flush_mapped_range = nouveau_screen_bo_map_flush;
pscreen->buffer_unmap = nouveau_screen_bo_unmap;
pscreen->buffer_destroy = nouveau_screen_bo_del;
pscreen->fence_reference = nouveau_screen_fence_ref;
pscreen->fence_signalled = nouveau_screen_fence_signalled;
pscreen->fence_finish = nouveau_screen_fence_finish;
return 0;
}
void
nouveau_screen_fini(struct nouveau_screen *screen)
{
struct pipe_winsys *ws = screen->base.winsys;
nouveau_channel_free(&screen->channel);
ws->destroy(ws);
}
|
