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1/*2 * Copyright 2015 Advanced Micro Devices, Inc.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * 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 OR20 * OTHER DEALINGS IN THE SOFTWARE.21 *22 * Authors: AMD23 *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#include "amdgpu_dm_trace.h"37 38 unsigned long long39 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 46void dm_perf_trace_timestamp(const char *func_name, unsigned int line, struct dc_context *ctx)47{48 trace_amdgpu_dc_performance(ctx->perf_trace->read_count,49 ctx->perf_trace->write_count,50 &ctx->perf_trace->last_entry_read,51 &ctx->perf_trace->last_entry_write,52 func_name, line);53}54 55void dm_trace_smu_msg(uint32_t msg_id, uint32_t param_in, struct dc_context *ctx)56{57}58 59void dm_trace_smu_delay(uint32_t delay, struct dc_context *ctx)60{61}62 63/**** power component interfaces ****/64