cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

amdgpu_dm_services.c (1972B)

      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#include "amdgpu_dm_trace.h"
     37
     38	unsigned long long
     39	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
     55/**** power component interfaces ****/