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
|
/*
* Copyright © 2014 Broadcom
*
* 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 (including the next
* paragraph) 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.
*/
#ifdef USE_VC4_SIMULATOR
#include "vc4_drv.h"
/*
* Copies in the user's binning command list and generates the validated bin
* CL, along with associated data (shader records, uniforms).
*/
static int
vc4_get_bcl(struct drm_device *dev, struct vc4_exec_info *exec)
{
struct drm_vc4_submit_cl *args = exec->args;
void *temp = NULL;
void *bin;
int ret = 0;
uint32_t bin_offset = 0;
uint32_t shader_rec_offset = roundup(bin_offset + args->bin_cl_size,
16);
uint32_t uniforms_offset = shader_rec_offset + args->shader_rec_size;
uint32_t exec_size = uniforms_offset + args->uniforms_size;
uint32_t temp_size = exec_size + (sizeof(struct vc4_shader_state) *
args->shader_rec_count);
if (uniforms_offset < shader_rec_offset ||
exec_size < uniforms_offset ||
args->shader_rec_count >= (UINT_MAX /
sizeof(struct vc4_shader_state)) ||
temp_size < exec_size) {
DRM_ERROR("overflow in exec arguments\n");
goto fail;
}
/* Allocate space where we'll store the copied in user command lists
* and shader records.
*
* We don't just copy directly into the BOs because we need to
* read the contents back for validation, and I think the
* bo->vaddr is uncached access.
*/
temp = kmalloc(temp_size, GFP_KERNEL);
if (!temp) {
DRM_ERROR("Failed to allocate storage for copying "
"in bin/render CLs.\n");
ret = -ENOMEM;
goto fail;
}
bin = temp + bin_offset;
exec->shader_rec_u = temp + shader_rec_offset;
exec->uniforms_u = temp + uniforms_offset;
exec->shader_state = temp + exec_size;
exec->shader_state_size = args->shader_rec_count;
ret = copy_from_user(bin,
(void __user *)(uintptr_t)args->bin_cl,
args->bin_cl_size);
if (ret) {
DRM_ERROR("Failed to copy in bin cl\n");
goto fail;
}
ret = copy_from_user(exec->shader_rec_u,
(void __user *)(uintptr_t)args->shader_rec,
args->shader_rec_size);
if (ret) {
DRM_ERROR("Failed to copy in shader recs\n");
goto fail;
}
ret = copy_from_user(exec->uniforms_u,
(void __user *)(uintptr_t)args->uniforms,
args->uniforms_size);
if (ret) {
DRM_ERROR("Failed to copy in uniforms cl\n");
goto fail;
}
exec->exec_bo = drm_gem_cma_create(dev, exec_size);
#if 0
if (IS_ERR(exec->exec_bo)) {
DRM_ERROR("Couldn't allocate BO for exec\n");
ret = PTR_ERR(exec->exec_bo);
exec->exec_bo = NULL;
goto fail;
}
#endif
list_addtail(&to_vc4_bo(&exec->exec_bo->base)->unref_head,
&exec->unref_list);
exec->ct0ca = exec->exec_bo->paddr + bin_offset;
exec->bin_u = bin;
exec->shader_rec_v = exec->exec_bo->vaddr + shader_rec_offset;
exec->shader_rec_p = exec->exec_bo->paddr + shader_rec_offset;
exec->shader_rec_size = args->shader_rec_size;
exec->uniforms_v = exec->exec_bo->vaddr + uniforms_offset;
exec->uniforms_p = exec->exec_bo->paddr + uniforms_offset;
exec->uniforms_size = args->uniforms_size;
ret = vc4_validate_bin_cl(dev,
exec->exec_bo->vaddr + bin_offset,
bin,
exec);
if (ret)
goto fail;
ret = vc4_validate_shader_recs(dev, exec);
fail:
kfree(temp);
return ret;
}
int
vc4_cl_validate(struct drm_device *dev, struct vc4_exec_info *exec)
{
struct drm_vc4_submit_cl *args = exec->args;
int ret = 0;
if (args->color_write.bits & VC4_RENDER_CONFIG_MS_MODE_4X) {
exec->tile_width = 32;
exec->tile_height = 32;
} else {
exec->tile_width = 64;
exec->tile_height = 64;
}
if (exec->args->bin_cl_size != 0) {
ret = vc4_get_bcl(dev, exec);
if (ret)
goto fail;
} else {
exec->ct0ca = exec->ct0ea = 0;
}
ret = vc4_get_rcl(dev, exec);
if (ret)
goto fail;
fail:
return ret;
}
#endif /* USE_VC4_SIMULATOR */
|
