Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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kernel
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linux
1//SPDX-License-Identifier: MIT
2/*
3 * Copyright 2015 Advanced Micro Devices, Inc.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21 * OTHER DEALINGS IN THE SOFTWARE.
22 *
23 * Authors: AMD
24 *
25 */
26
27#include <linux/string.h>
28#include <linux/acpi.h>
29
30#include <drm/drm_probe_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#include "amdgpu_dm_trace.h"
38
39 unsigned long long
40 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, struct dc_context *ctx)
48{
49 trace_amdgpu_dc_performance(ctx->perf_trace->read_count,
50 ctx->perf_trace->write_count,
51 &ctx->perf_trace->last_entry_read,
52 &ctx->perf_trace->last_entry_write,
53 func_name, line);
54}
55
56void dm_trace_smu_enter(uint32_t msg_id, uint32_t param_in, unsigned int delay, struct dc_context *ctx)
57{
58}
59
60void dm_trace_smu_exit(bool success, uint32_t response, struct dc_context *ctx)
61{
62}
63
64/**** power component interfaces ****/