display/amdgpu_dm/amdgpu_dm_services.c

0001 /*
0002  * Copyright 2015 Advanced Micro Devices, Inc.
0003  *
0004  * Permission is hereby granted, free of charge, to any person obtaining a
0005  * copy of this software and associated documentation files (the "Software"),
0006  * to deal in the Software without restriction, including without limitation
0007  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
0008  * and/or sell copies of the Software, and to permit persons to whom the
0009  * Software is furnished to do so, subject to the following conditions:
0010  *
0011  * The above copyright notice and this permission notice shall be included in
0012  * all copies or substantial portions of the Software.
0013  *
0014  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
0015  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
0016  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
0017  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
0018  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
0019  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
0020  * OTHER DEALINGS IN THE SOFTWARE.
0021  *
0022  * Authors: AMD
0023  *
0024  */
0025
0026 #include <linux/string.h>
0027 #include <linux/acpi.h>
0028
0029 #include <drm/drm_probe_helper.h>
0030 #include <drm/amdgpu_drm.h>
0031 #include "dm_services.h"
0032 #include "amdgpu.h"
0033 #include "amdgpu_dm.h"
0034 #include "amdgpu_dm_irq.h"
0035 #include "amdgpu_pm.h"
0036 #include "amdgpu_dm_trace.h"
0037
0038     unsigned long long
0039     dm_get_elapse_time_in_ns(struct dc_context *ctx,
0040                  unsigned long long current_time_stamp,
0041                  unsigned long long last_time_stamp)
0042 {
0043     return current_time_stamp - last_time_stamp;
0044 }
0045
0046 void dm_perf_trace_timestamp(const char *func_name, unsigned int line, struct dc_context *ctx)
0047 {
0048     trace_amdgpu_dc_performance(ctx->perf_trace->read_count,
0049                     ctx->perf_trace->write_count,
0050                     &ctx->perf_trace->last_entry_read,
0051                     &ctx->perf_trace->last_entry_write,
0052                     func_name, line);
0053 }
0054
0055 /**** power component interfaces ****/