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
|
#include "i915_drm_winsys.h"
#include "util/u_memory.h"
#include "i915_drm.h"
#include "i915/i915_debug.h"
#include <xf86drm.h>
#include <stdio.h>
#define BATCH_RESERVED 16
#define INTEL_DEFAULT_RELOCS 100
#define INTEL_MAX_RELOCS 400
#define INTEL_BATCH_NO_CLIPRECTS 0x1
#define INTEL_BATCH_CLIPRECTS 0x2
#undef INTEL_RUN_SYNC
struct i915_drm_batchbuffer
{
struct i915_winsys_batchbuffer base;
size_t actual_size;
drm_intel_bo *bo;
};
static INLINE struct i915_drm_batchbuffer *
i915_drm_batchbuffer(struct i915_winsys_batchbuffer *batch)
{
return (struct i915_drm_batchbuffer *)batch;
}
static void
i915_drm_batchbuffer_reset(struct i915_drm_batchbuffer *batch)
{
struct i915_drm_winsys *idws = i915_drm_winsys(batch->base.iws);
if (batch->bo)
drm_intel_bo_unreference(batch->bo);
batch->bo = drm_intel_bo_alloc(idws->gem_manager,
"gallium3d_batchbuffer",
batch->actual_size,
4096);
memset(batch->base.map, 0, batch->actual_size);
batch->base.ptr = batch->base.map;
batch->base.size = batch->actual_size - BATCH_RESERVED;
batch->base.relocs = 0;
}
static struct i915_winsys_batchbuffer *
i915_drm_batchbuffer_create(struct i915_winsys *iws)
{
struct i915_drm_winsys *idws = i915_drm_winsys(iws);
struct i915_drm_batchbuffer *batch = CALLOC_STRUCT(i915_drm_batchbuffer);
batch->actual_size = idws->max_batch_size;
batch->base.map = MALLOC(batch->actual_size);
batch->base.ptr = NULL;
batch->base.size = 0;
batch->base.relocs = 0;
batch->base.iws = iws;
i915_drm_batchbuffer_reset(batch);
return &batch->base;
}
static boolean
i915_drm_batchbuffer_validate_buffers(struct i915_winsys_batchbuffer *batch,
struct i915_winsys_buffer **buffer,
int num_of_buffers)
{
struct i915_drm_batchbuffer *drm_batch = i915_drm_batchbuffer(batch);
drm_intel_bo *bos[num_of_buffers + 1];
int i, ret;
bos[0] = drm_batch->bo;
for (i = 0; i < num_of_buffers; i++)
bos[i+1] = intel_bo(buffer[i]);
ret = drm_intel_bufmgr_check_aperture_space(bos, num_of_buffers);
if (ret != 0)
return FALSE;
return TRUE;
}
static int
i915_drm_batchbuffer_reloc(struct i915_winsys_batchbuffer *ibatch,
struct i915_winsys_buffer *buffer,
enum i915_winsys_buffer_usage usage,
unsigned pre_add, boolean fenced)
{
struct i915_drm_batchbuffer *batch = i915_drm_batchbuffer(ibatch);
unsigned write_domain = 0;
unsigned read_domain = 0;
unsigned offset;
int ret = 0;
switch (usage) {
case I915_USAGE_SAMPLER:
write_domain = 0;
read_domain = I915_GEM_DOMAIN_SAMPLER;
break;
case I915_USAGE_RENDER:
write_domain = I915_GEM_DOMAIN_RENDER;
read_domain = I915_GEM_DOMAIN_RENDER;
break;
case I915_USAGE_2D_TARGET:
write_domain = I915_GEM_DOMAIN_RENDER;
read_domain = I915_GEM_DOMAIN_RENDER;
break;
case I915_USAGE_2D_SOURCE:
write_domain = 0;
read_domain = I915_GEM_DOMAIN_RENDER;
break;
case I915_USAGE_VERTEX:
write_domain = 0;
read_domain = I915_GEM_DOMAIN_VERTEX;
break;
default:
assert(0);
return -1;
}
offset = (unsigned)(batch->base.ptr - batch->base.map);
if (fenced)
ret = drm_intel_bo_emit_reloc_fence(batch->bo, offset,
intel_bo(buffer), pre_add,
read_domain,
write_domain);
else
ret = drm_intel_bo_emit_reloc(batch->bo, offset,
intel_bo(buffer), pre_add,
read_domain,
write_domain);
((uint32_t*)batch->base.ptr)[0] = intel_bo(buffer)->offset + pre_add;
batch->base.ptr += 4;
if (!ret)
batch->base.relocs++;
return ret;
}
static void
i915_drm_throttle(struct i915_drm_winsys *idws)
{
drmIoctl(idws->fd, DRM_IOCTL_I915_GEM_THROTTLE, NULL);
}
static void
i915_drm_batchbuffer_flush(struct i915_winsys_batchbuffer *ibatch,
struct pipe_fence_handle **fence)
{
struct i915_drm_batchbuffer *batch = i915_drm_batchbuffer(ibatch);
unsigned used;
int ret;
/* MI_BATCH_BUFFER_END */
i915_winsys_batchbuffer_dword_unchecked(ibatch, (0xA<<23));
used = batch->base.ptr - batch->base.map;
if (used & 4) {
/* MI_NOOP */
i915_winsys_batchbuffer_dword_unchecked(ibatch, 0);
used += 4;
}
/* Do the sending to HW */
ret = drm_intel_bo_subdata(batch->bo, 0, used, batch->base.map);
if (ret == 0 && i915_drm_winsys(ibatch->iws)->send_cmd)
ret = drm_intel_bo_exec(batch->bo, used, NULL, 0, 0);
i915_drm_throttle(i915_drm_winsys(ibatch->iws));
if (ret != 0 || i915_drm_winsys(ibatch->iws)->dump_cmd) {
i915_dump_batchbuffer(ibatch);
assert(ret == 0);
}
if (i915_drm_winsys(ibatch->iws)->dump_raw_file) {
FILE *file = fopen(i915_drm_winsys(ibatch->iws)->dump_raw_file, "a");
if (file) {
fwrite(batch->base.map, used, 1, file);
fclose(file);
}
}
#ifdef INTEL_RUN_SYNC
drm_intel_bo_wait_rendering(batch->bo);
#endif
if (fence) {
ibatch->iws->fence_reference(ibatch->iws, fence, NULL);
#ifdef INTEL_RUN_SYNC
/* we run synced to GPU so just pass null */
(*fence) = i915_drm_fence_create(NULL);
#else
(*fence) = i915_drm_fence_create(batch->bo);
#endif
}
i915_drm_batchbuffer_reset(batch);
}
static void
i915_drm_batchbuffer_destroy(struct i915_winsys_batchbuffer *ibatch)
{
struct i915_drm_batchbuffer *batch = i915_drm_batchbuffer(ibatch);
if (batch->bo)
drm_intel_bo_unreference(batch->bo);
FREE(batch->base.map);
FREE(batch);
}
void i915_drm_winsys_init_batchbuffer_functions(struct i915_drm_winsys *idws)
{
idws->base.batchbuffer_create = i915_drm_batchbuffer_create;
idws->base.validate_buffers = i915_drm_batchbuffer_validate_buffers;
idws->base.batchbuffer_reloc = i915_drm_batchbuffer_reloc;
idws->base.batchbuffer_flush = i915_drm_batchbuffer_flush;
idws->base.batchbuffer_destroy = i915_drm_batchbuffer_destroy;
}
|
