1 /*
2 * Copyright 2015 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: AMD
23 *
24 */
25
26 #include <linux/string.h>
27 #include <linux/acpi.h>
28
29 #include <drm/drm_probe_helper.h>
30 #include <drm/amdgpu_drm.h>
31 #include "dm_services.h"
32 #include "amdgpu.h"
33 #include "amdgpu_dm.h"
34 #include "amdgpu_dm_irq.h"
35 #include "amdgpu_pm.h"
36
37
38
39 unsigned long long dm_get_elapse_time_in_ns(struct dc_context *ctx,
40 unsigned long long current_time_stamp,
41 unsigned long long last_time_stamp)
42 {
43 return current_time_stamp - last_time_stamp;
44 }
45
46 void dm_perf_trace_timestamp(const char *func_name, unsigned int line)
47 {
48 }
49
50 bool dm_write_persistent_data(struct dc_context *ctx,
51 const struct dc_sink *sink,
52 const char *module_name,
53 const char *key_name,
54 void *params,
55 unsigned int size,
56 struct persistent_data_flag *flag)
57 {
58 /*TODO implement*/
59 return false;
60 }
61
62 bool dm_read_persistent_data(struct dc_context *ctx,
63 const struct dc_sink *sink,
64 const char *module_name,
65 const char *key_name,
66 void *params,
67 unsigned int size,
68 struct persistent_data_flag *flag)
69 {
70 /*TODO implement*/
71 return false;
72 }
73
74 /**** power component interfaces ****/
75