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
|
/*
* drivers/video/tegra/host/nvhost_hwctx.h
*
* Tegra Graphics Host Hardware Context Interface
*
* Copyright (c) 2010, NVIDIA Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef __NVHOST_HWCTX_H
#define __NVHOST_HWCTX_H
#include <linux/string.h>
#include <linux/kref.h>
#include <mach/nvhost.h>
#include <mach/nvmap.h>
struct nvhost_channel;
struct nvhost_hwctx {
struct kref ref;
struct nvhost_channel *channel;
bool valid;
struct nvmap_handle_ref *save;
u32 save_phys;
u32 save_size;
u32 save_incrs;
void *save_cpu_data;
struct nvmap_handle_ref *restore;
u32 restore_phys;
u32 restore_size;
u32 restore_incrs;
};
struct nvhost_hwctx_handler {
struct nvhost_hwctx * (*alloc) (struct nvhost_channel *ch);
void (*get) (struct nvhost_hwctx *ctx);
void (*put) (struct nvhost_hwctx *ctx);
void (*save_service) (struct nvhost_hwctx *ctx);
};
int nvhost_3dctx_handler_init(struct nvhost_hwctx_handler *h);
int nvhost_mpectx_handler_init(struct nvhost_hwctx_handler *h);
static inline int nvhost_hwctx_handler_init(struct nvhost_hwctx_handler *h,
const char *module)
{
if (strcmp(module, "gr3d") == 0)
return nvhost_3dctx_handler_init(h);
else if (strcmp(module, "mpe") == 0)
return nvhost_mpectx_handler_init(h);
return 0;
}
struct hwctx_reginfo {
unsigned int offset:12;
unsigned int count:16;
unsigned int type:2;
};
enum {
HWCTX_REGINFO_DIRECT = 0,
HWCTX_REGINFO_INDIRECT,
HWCTX_REGINFO_INDIRECT_OFFSET,
HWCTX_REGINFO_INDIRECT_DATA
};
#define HWCTX_REGINFO(offset, count, type) {offset, count, HWCTX_REGINFO_##type}
#endif
|
