Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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/drmP.h>
30#include <drm/drm_crtc_helper.h>
31#include <drm/amdgpu_drm.h>
32#include "dm_services.h"
33#include "amdgpu.h"
34#include "amdgpu_dm.h"
35#include "amdgpu_dm_irq.h"
36#include "amdgpu_pm.h"
37
38
39
40unsigned long long dm_get_elapse_time_in_ns(struct dc_context *ctx,
41 unsigned long long current_time_stamp,
42 unsigned long long last_time_stamp)
43{
44 return current_time_stamp - last_time_stamp;
45}
46
47void dm_perf_trace_timestamp(const char *func_name, unsigned int line)
48{
49}
50
51bool dm_write_persistent_data(struct dc_context *ctx,
52 const struct dc_sink *sink,
53 const char *module_name,
54 const char *key_name,
55 void *params,
56 unsigned int size,
57 struct persistent_data_flag *flag)
58{
59 /*TODO implement*/
60 return false;
61}
62
63bool dm_read_persistent_data(struct dc_context *ctx,
64 const struct dc_sink *sink,
65 const char *module_name,
66 const char *key_name,
67 void *params,
68 unsigned int size,
69 struct persistent_data_flag *flag)
70{
71 /*TODO implement*/
72 return false;
73}
74
75/**** power component interfaces ****/
76