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
|
/*
* Copyright 2013 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 OR COPYRIGHT HOLDERS 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: Christoph Bumiller, Samuel Pitoiset
*/
#include "nvc0/nvc0_context.h"
#include "nvc0/nvc0_compute.h"
int
nvc0_screen_compute_setup(struct nvc0_screen *screen,
struct nouveau_pushbuf *push)
{
struct nouveau_object *chan = screen->base.channel;
struct nouveau_device *dev = screen->base.device;
uint32_t obj_class;
int ret;
int i;
switch (dev->chipset & ~0xf) {
case 0xc0:
if (dev->chipset == 0xc8)
obj_class = NVC8_COMPUTE_CLASS;
else
obj_class = NVC0_COMPUTE_CLASS;
break;
case 0xd0:
obj_class = NVC0_COMPUTE_CLASS;
break;
default:
NOUVEAU_ERR("unsupported chipset: NV%02x\n", dev->chipset);
return -1;
}
ret = nouveau_object_new(chan, 0xbeef90c0, obj_class, NULL, 0,
&screen->compute);
if (ret) {
NOUVEAU_ERR("Failed to allocate compute object: %d\n", ret);
return ret;
}
ret = nouveau_bo_new(dev, NV_VRAM_DOMAIN(&screen->base), 0, 1 << 12, NULL,
&screen->parm);
if (ret)
return ret;
BEGIN_NVC0(push, SUBC_COMPUTE(NV01_SUBCHAN_OBJECT), 1);
PUSH_DATA (push, screen->compute->oclass);
/* hardware limit */
BEGIN_NVC0(push, NVC0_COMPUTE(MP_LIMIT), 1);
PUSH_DATA (push, screen->mp_count);
BEGIN_NVC0(push, NVC0_COMPUTE(CALL_LIMIT_LOG), 1);
PUSH_DATA (push, 0xf);
BEGIN_NVC0(push, SUBC_COMPUTE(0x02a0), 1);
PUSH_DATA (push, 0x8000);
/* global memory setup */
BEGIN_NVC0(push, SUBC_COMPUTE(0x02c4), 1);
PUSH_DATA (push, 0);
BEGIN_NIC0(push, NVC0_COMPUTE(GLOBAL_BASE), 0x100);
for (i = 0; i <= 0xff; i++)
PUSH_DATA (push, (0xc << 28) | (i << 16) | i);
BEGIN_NVC0(push, SUBC_COMPUTE(0x02c4), 1);
PUSH_DATA (push, 1);
/* local memory and cstack setup */
BEGIN_NVC0(push, NVC0_COMPUTE(TEMP_ADDRESS_HIGH), 2);
PUSH_DATAh(push, screen->tls->offset);
PUSH_DATA (push, screen->tls->offset);
BEGIN_NVC0(push, NVC0_COMPUTE(TEMP_SIZE_HIGH), 2);
PUSH_DATAh(push, screen->tls->size);
PUSH_DATA (push, screen->tls->size);
BEGIN_NVC0(push, NVC0_COMPUTE(WARP_TEMP_ALLOC), 1);
PUSH_DATA (push, 0);
BEGIN_NVC0(push, NVC0_COMPUTE(LOCAL_BASE), 1);
PUSH_DATA (push, 1 << 24);
/* shared memory setup */
BEGIN_NVC0(push, NVC0_COMPUTE(CACHE_SPLIT), 1);
PUSH_DATA (push, NVC0_COMPUTE_CACHE_SPLIT_48K_SHARED_16K_L1);
BEGIN_NVC0(push, NVC0_COMPUTE(SHARED_BASE), 1);
PUSH_DATA (push, 2 << 24);
BEGIN_NVC0(push, NVC0_COMPUTE(SHARED_SIZE), 1);
PUSH_DATA (push, 0);
/* code segment setup */
BEGIN_NVC0(push, NVC0_COMPUTE(CODE_ADDRESS_HIGH), 2);
PUSH_DATAh(push, screen->text->offset);
PUSH_DATA (push, screen->text->offset);
/* bind parameters buffer */
BEGIN_NVC0(push, NVC0_COMPUTE(CB_SIZE), 3);
PUSH_DATA (push, screen->parm->size);
PUSH_DATAh(push, screen->parm->offset);
PUSH_DATA (push, screen->parm->offset);
BEGIN_NVC0(push, NVC0_COMPUTE(CB_BIND), 1);
PUSH_DATA (push, (0 << 8) | 1);
/* TODO: textures & samplers */
return 0;
}
bool
nvc0_compute_validate_program(struct nvc0_context *nvc0)
{
struct nvc0_program *prog = nvc0->compprog;
if (prog->mem)
return true;
if (!prog->translated) {
prog->translated = nvc0_program_translate(
prog, nvc0->screen->base.device->chipset);
if (!prog->translated)
return false;
}
if (unlikely(!prog->code_size))
return false;
if (likely(prog->code_size)) {
if (nvc0_program_upload_code(nvc0, prog)) {
struct nouveau_pushbuf *push = nvc0->base.pushbuf;
BEGIN_NVC0(push, NVC0_COMPUTE(FLUSH), 1);
PUSH_DATA (push, NVC0_COMPUTE_FLUSH_CODE);
return true;
}
}
return false;
}
static bool
nvc0_compute_state_validate(struct nvc0_context *nvc0)
{
if (!nvc0_compute_validate_program(nvc0))
return false;
/* TODO: textures, samplers, surfaces, global memory buffers */
nvc0_bufctx_fence(nvc0, nvc0->bufctx_cp, false);
nouveau_pushbuf_bufctx(nvc0->base.pushbuf, nvc0->bufctx_cp);
if (unlikely(nouveau_pushbuf_validate(nvc0->base.pushbuf)))
return false;
if (unlikely(nvc0->state.flushed))
nvc0_bufctx_fence(nvc0, nvc0->bufctx_cp, true);
return true;
}
static void
nvc0_compute_upload_input(struct nvc0_context *nvc0, const void *input)
{
struct nouveau_pushbuf *push = nvc0->base.pushbuf;
struct nvc0_screen *screen = nvc0->screen;
struct nvc0_program *cp = nvc0->compprog;
if (cp->parm_size) {
BEGIN_NVC0(push, NVC0_COMPUTE(CB_SIZE), 3);
PUSH_DATA (push, align(cp->parm_size, 0x100));
PUSH_DATAh(push, screen->parm->offset);
PUSH_DATA (push, screen->parm->offset);
BEGIN_NVC0(push, NVC0_COMPUTE(CB_BIND), 1);
PUSH_DATA (push, (0 << 8) | 1);
/* NOTE: size is limited to 4 KiB, which is < NV04_PFIFO_MAX_PACKET_LEN */
BEGIN_1IC0(push, NVC0_COMPUTE(CB_POS), 1 + cp->parm_size / 4);
PUSH_DATA (push, 0);
PUSH_DATAp(push, input, cp->parm_size / 4);
BEGIN_NVC0(push, NVC0_COMPUTE(FLUSH), 1);
PUSH_DATA (push, NVC0_COMPUTE_FLUSH_CB);
}
}
void
nvc0_launch_grid(struct pipe_context *pipe,
const uint *block_layout, const uint *grid_layout,
uint32_t label,
const void *input)
{
struct nvc0_context *nvc0 = nvc0_context(pipe);
struct nouveau_pushbuf *push = nvc0->base.pushbuf;
struct nvc0_program *cp = nvc0->compprog;
unsigned s, i;
int ret;
ret = !nvc0_compute_state_validate(nvc0);
if (ret)
goto out;
nvc0_compute_upload_input(nvc0, input);
BEGIN_NVC0(push, NVC0_COMPUTE(CP_START_ID), 1);
PUSH_DATA (push, nvc0_program_symbol_offset(cp, label));
BEGIN_NVC0(push, NVC0_COMPUTE(LOCAL_POS_ALLOC), 3);
PUSH_DATA (push, align(cp->cp.lmem_size, 0x10));
PUSH_DATA (push, 0);
PUSH_DATA (push, 0x800); /* WARP_CSTACK_SIZE */
BEGIN_NVC0(push, NVC0_COMPUTE(SHARED_SIZE), 3);
PUSH_DATA (push, align(cp->cp.smem_size, 0x100));
PUSH_DATA (push, block_layout[0] * block_layout[1] * block_layout[2]);
PUSH_DATA (push, cp->num_barriers);
BEGIN_NVC0(push, NVC0_COMPUTE(CP_GPR_ALLOC), 1);
PUSH_DATA (push, cp->num_gprs);
/* grid/block setup */
BEGIN_NVC0(push, NVC0_COMPUTE(GRIDDIM_YX), 2);
PUSH_DATA (push, (grid_layout[1] << 16) | grid_layout[0]);
PUSH_DATA (push, grid_layout[2]);
BEGIN_NVC0(push, NVC0_COMPUTE(BLOCKDIM_YX), 2);
PUSH_DATA (push, (block_layout[1] << 16) | block_layout[0]);
PUSH_DATA (push, block_layout[2]);
/* launch preliminary setup */
BEGIN_NVC0(push, NVC0_COMPUTE(GRIDID), 1);
PUSH_DATA (push, 0x1);
BEGIN_NVC0(push, SUBC_COMPUTE(0x036c), 1);
PUSH_DATA (push, 0);
BEGIN_NVC0(push, NVC0_COMPUTE(FLUSH), 1);
PUSH_DATA (push, NVC0_COMPUTE_FLUSH_GLOBAL | NVC0_COMPUTE_FLUSH_UNK8);
/* kernel launching */
BEGIN_NVC0(push, NVC0_COMPUTE(COMPUTE_BEGIN), 1);
PUSH_DATA (push, 0);
BEGIN_NVC0(push, SUBC_COMPUTE(0x0a08), 1);
PUSH_DATA (push, 0);
BEGIN_NVC0(push, NVC0_COMPUTE(LAUNCH), 1);
PUSH_DATA (push, 0x1000);
BEGIN_NVC0(push, NVC0_COMPUTE(COMPUTE_END), 1);
PUSH_DATA (push, 0);
BEGIN_NVC0(push, SUBC_COMPUTE(0x0360), 1);
PUSH_DATA (push, 0x1);
/* rebind all the 3D constant buffers
* (looks like binding a CB on COMPUTE clobbers 3D state) */
nvc0->dirty |= NVC0_NEW_CONSTBUF;
for (s = 0; s < 6; s++) {
for (i = 0; i < NVC0_MAX_PIPE_CONSTBUFS; i++)
if (nvc0->constbuf[s][i].u.buf)
nvc0->constbuf_dirty[s] |= 1 << i;
}
memset(nvc0->state.uniform_buffer_bound, 0,
sizeof(nvc0->state.uniform_buffer_bound));
out:
if (ret)
NOUVEAU_ERR("Failed to launch grid !\n");
}
|
