cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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dml_inline_defs.h (3666B)

      1/*
      2 * Copyright 2017 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#ifndef __DML_INLINE_DEFS_H__
     27#define __DML_INLINE_DEFS_H__
     28
     29#include "dcn_calc_math.h"
     30#include "dml_logger.h"
     31
     32static inline double dml_min(double a, double b)
     33{
     34	return (double) dcn_bw_min2(a, b);
     35}
     36
     37static inline double dml_min3(double a, double b, double c)
     38{
     39	return dml_min(dml_min(a, b), c);
     40}
     41
     42static inline double dml_min4(double a, double b, double c, double d)
     43{
     44	return dml_min(dml_min(a, b), dml_min(c, d));
     45}
     46
     47static inline double dml_max(double a, double b)
     48{
     49	return (double) dcn_bw_max2(a, b);
     50}
     51
     52static inline double dml_max3(double a, double b, double c)
     53{
     54	return dml_max(dml_max(a, b), c);
     55}
     56
     57static inline double dml_max4(double a, double b, double c, double d)
     58{
     59	return dml_max(dml_max(a, b), dml_max(c, d));
     60}
     61
     62static inline double dml_max5(double a, double b, double c, double d, double e)
     63{
     64	return dml_max(dml_max4(a, b, c, d), e);
     65}
     66
     67static inline double dml_ceil(double a, double granularity)
     68{
     69	return (double) dcn_bw_ceil2(a, granularity);
     70}
     71
     72static inline double dml_floor(double a, double granularity)
     73{
     74	return (double) dcn_bw_floor2(a, granularity);
     75}
     76
     77static inline double dml_round(double a)
     78{
     79	double round_pt = 0.5;
     80	double ceil = dml_ceil(a, 1);
     81	double floor = dml_floor(a, 1);
     82
     83	if (a - floor >= round_pt)
     84		return ceil;
     85	else
     86		return floor;
     87}
     88
     89/* float
     90static inline int dml_log2(float x)
     91{
     92	unsigned int ix = *((unsigned int *)&x);
     93
     94	return (int)((ix >> 23) & 0xff) - 127;
     95}*/
     96
     97/* double */
     98static inline int dml_log2(double x)
     99{
    100	unsigned long long ix = *((unsigned long long *)&x);
    101
    102	return (int)((ix >> 52) & 0x7ff) - 1023;
    103}
    104
    105static inline double dml_pow(double a, int exp)
    106{
    107	return (double) dcn_bw_pow(a, exp);
    108}
    109
    110static inline double dml_fmod(double f, int val)
    111{
    112	return (double) dcn_bw_mod(f, val);
    113}
    114
    115static inline double dml_ceil_2(double f)
    116{
    117	return (double) dcn_bw_ceil2(f, 2);
    118}
    119
    120static inline double dml_ceil_ex(double x, double granularity)
    121{
    122	return (double) dcn_bw_ceil2(x, granularity);
    123}
    124
    125static inline double dml_floor_ex(double x, double granularity)
    126{
    127	return (double) dcn_bw_floor2(x, granularity);
    128}
    129
    130static inline unsigned int dml_round_to_multiple(unsigned int num,
    131						 unsigned int multiple,
    132						 unsigned char up)
    133{
    134	unsigned int remainder;
    135
    136	if (multiple == 0)
    137		return num;
    138
    139	remainder = num % multiple;
    140
    141	if (remainder == 0)
    142		return num;
    143
    144	if (up)
    145		return (num + multiple - remainder);
    146	else
    147		return (num - remainder);
    148}
    149static inline double dml_abs(double a)
    150{
    151	if (a > 0)
    152		return a;
    153	else
    154		return (a*(-1));
    155}
    156
    157#endif